M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
S: Maintained
-F: drivers/net/r8169.c
+F: drivers/net/ethernet/realtek/r8169.c
8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
M: Greg Kroah-Hartman <gregkh@suse.de>
+++ /dev/null
-/* 8139cp.c: A Linux PCI Ethernet driver for the RealTek 8139C+ chips. */
-/*
- Copyright 2001-2004 Jeff Garzik <jgarzik@pobox.com>
-
- Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com) [tg3.c]
- Copyright (C) 2000, 2001 David S. Miller (davem@redhat.com) [sungem.c]
- Copyright 2001 Manfred Spraul [natsemi.c]
- Copyright 1999-2001 by Donald Becker. [natsemi.c]
- Written 1997-2001 by Donald Becker. [8139too.c]
- Copyright 1998-2001 by Jes Sorensen, <jes@trained-monkey.org>. [acenic.c]
-
- This software may be used and distributed according to the terms of
- the GNU General Public License (GPL), incorporated herein by reference.
- Drivers based on or derived from this code fall under the GPL and must
- retain the authorship, copyright and license notice. This file is not
- a complete program and may only be used when the entire operating
- system is licensed under the GPL.
-
- See the file COPYING in this distribution for more information.
-
- Contributors:
-
- Wake-on-LAN support - Felipe Damasio <felipewd@terra.com.br>
- PCI suspend/resume - Felipe Damasio <felipewd@terra.com.br>
- LinkChg interrupt - Felipe Damasio <felipewd@terra.com.br>
-
- TODO:
- * Test Tx checksumming thoroughly
-
- Low priority TODO:
- * Complete reset on PciErr
- * Consider Rx interrupt mitigation using TimerIntr
- * Investigate using skb->priority with h/w VLAN priority
- * Investigate using High Priority Tx Queue with skb->priority
- * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
- * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
- * Implement Tx software interrupt mitigation via
- Tx descriptor bit
- * The real minimum of CP_MIN_MTU is 4 bytes. However,
- for this to be supported, one must(?) turn on packet padding.
- * Support external MII transceivers (patch available)
-
- NOTES:
- * TX checksumming is considered experimental. It is off by
- default, use ethtool to turn it on.
-
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define DRV_NAME "8139cp"
-#define DRV_VERSION "1.3"
-#define DRV_RELDATE "Mar 22, 2004"
-
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/compiler.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/gfp.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-#include <linux/cache.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-
-/* These identify the driver base version and may not be removed. */
-static char version[] =
-DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
-
-MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver");
-MODULE_VERSION(DRV_VERSION);
-MODULE_LICENSE("GPL");
-
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number");
-
-/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static int multicast_filter_limit = 32;
-module_param(multicast_filter_limit, int, 0);
-MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses");
-
-#define CP_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
- NETIF_MSG_PROBE | \
- NETIF_MSG_LINK)
-#define CP_NUM_STATS 14 /* struct cp_dma_stats, plus one */
-#define CP_STATS_SIZE 64 /* size in bytes of DMA stats block */
-#define CP_REGS_SIZE (0xff + 1)
-#define CP_REGS_VER 1 /* version 1 */
-#define CP_RX_RING_SIZE 64
-#define CP_TX_RING_SIZE 64
-#define CP_RING_BYTES \
- ((sizeof(struct cp_desc) * CP_RX_RING_SIZE) + \
- (sizeof(struct cp_desc) * CP_TX_RING_SIZE) + \
- CP_STATS_SIZE)
-#define NEXT_TX(N) (((N) + 1) & (CP_TX_RING_SIZE - 1))
-#define NEXT_RX(N) (((N) + 1) & (CP_RX_RING_SIZE - 1))
-#define TX_BUFFS_AVAIL(CP) \
- (((CP)->tx_tail <= (CP)->tx_head) ? \
- (CP)->tx_tail + (CP_TX_RING_SIZE - 1) - (CP)->tx_head : \
- (CP)->tx_tail - (CP)->tx_head - 1)
-
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
-#define CP_INTERNAL_PHY 32
-
-/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
-#define RX_FIFO_THRESH 5 /* Rx buffer level before first PCI xfer. */
-#define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 */
-#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
-#define TX_EARLY_THRESH 256 /* Early Tx threshold, in bytes */
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (6*HZ)
-
-/* hardware minimum and maximum for a single frame's data payload */
-#define CP_MIN_MTU 60 /* TODO: allow lower, but pad */
-#define CP_MAX_MTU 4096
-
-enum {
- /* NIC register offsets */
- MAC0 = 0x00, /* Ethernet hardware address. */
- MAR0 = 0x08, /* Multicast filter. */
- StatsAddr = 0x10, /* 64-bit start addr of 64-byte DMA stats blk */
- TxRingAddr = 0x20, /* 64-bit start addr of Tx ring */
- HiTxRingAddr = 0x28, /* 64-bit start addr of high priority Tx ring */
- Cmd = 0x37, /* Command register */
- IntrMask = 0x3C, /* Interrupt mask */
- IntrStatus = 0x3E, /* Interrupt status */
- TxConfig = 0x40, /* Tx configuration */
- ChipVersion = 0x43, /* 8-bit chip version, inside TxConfig */
- RxConfig = 0x44, /* Rx configuration */
- RxMissed = 0x4C, /* 24 bits valid, write clears */
- Cfg9346 = 0x50, /* EEPROM select/control; Cfg reg [un]lock */
- Config1 = 0x52, /* Config1 */
- Config3 = 0x59, /* Config3 */
- Config4 = 0x5A, /* Config4 */
- MultiIntr = 0x5C, /* Multiple interrupt select */
- BasicModeCtrl = 0x62, /* MII BMCR */
- BasicModeStatus = 0x64, /* MII BMSR */
- NWayAdvert = 0x66, /* MII ADVERTISE */
- NWayLPAR = 0x68, /* MII LPA */
- NWayExpansion = 0x6A, /* MII Expansion */
- Config5 = 0xD8, /* Config5 */
- TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */
- RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */
- CpCmd = 0xE0, /* C+ Command register (C+ mode only) */
- IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */
- RxRingAddr = 0xE4, /* 64-bit start addr of Rx ring */
- TxThresh = 0xEC, /* Early Tx threshold */
- OldRxBufAddr = 0x30, /* DMA address of Rx ring buffer (C mode) */
- OldTSD0 = 0x10, /* DMA address of first Tx desc (C mode) */
-
- /* Tx and Rx status descriptors */
- DescOwn = (1 << 31), /* Descriptor is owned by NIC */
- RingEnd = (1 << 30), /* End of descriptor ring */
- FirstFrag = (1 << 29), /* First segment of a packet */
- LastFrag = (1 << 28), /* Final segment of a packet */
- LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
- MSSShift = 16, /* MSS value position */
- MSSMask = 0xfff, /* MSS value: 11 bits */
- TxError = (1 << 23), /* Tx error summary */
- RxError = (1 << 20), /* Rx error summary */
- IPCS = (1 << 18), /* Calculate IP checksum */
- UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
- TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
- TxVlanTag = (1 << 17), /* Add VLAN tag */
- RxVlanTagged = (1 << 16), /* Rx VLAN tag available */
- IPFail = (1 << 15), /* IP checksum failed */
- UDPFail = (1 << 14), /* UDP/IP checksum failed */
- TCPFail = (1 << 13), /* TCP/IP checksum failed */
- NormalTxPoll = (1 << 6), /* One or more normal Tx packets to send */
- PID1 = (1 << 17), /* 2 protocol id bits: 0==non-IP, */
- PID0 = (1 << 16), /* 1==UDP/IP, 2==TCP/IP, 3==IP */
- RxProtoTCP = 1,
- RxProtoUDP = 2,
- RxProtoIP = 3,
- TxFIFOUnder = (1 << 25), /* Tx FIFO underrun */
- TxOWC = (1 << 22), /* Tx Out-of-window collision */
- TxLinkFail = (1 << 21), /* Link failed during Tx of packet */
- TxMaxCol = (1 << 20), /* Tx aborted due to excessive collisions */
- TxColCntShift = 16, /* Shift, to get 4-bit Tx collision cnt */
- TxColCntMask = 0x01 | 0x02 | 0x04 | 0x08, /* 4-bit collision count */
- RxErrFrame = (1 << 27), /* Rx frame alignment error */
- RxMcast = (1 << 26), /* Rx multicast packet rcv'd */
- RxErrCRC = (1 << 18), /* Rx CRC error */
- RxErrRunt = (1 << 19), /* Rx error, packet < 64 bytes */
- RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */
- RxErrFIFO = (1 << 22), /* Rx error, FIFO overflowed, pkt bad */
-
- /* StatsAddr register */
- DumpStats = (1 << 3), /* Begin stats dump */
-
- /* RxConfig register */
- RxCfgFIFOShift = 13, /* Shift, to get Rx FIFO thresh value */
- RxCfgDMAShift = 8, /* Shift, to get Rx Max DMA value */
- AcceptErr = 0x20, /* Accept packets with CRC errors */
- AcceptRunt = 0x10, /* Accept runt (<64 bytes) packets */
- AcceptBroadcast = 0x08, /* Accept broadcast packets */
- AcceptMulticast = 0x04, /* Accept multicast packets */
- AcceptMyPhys = 0x02, /* Accept pkts with our MAC as dest */
- AcceptAllPhys = 0x01, /* Accept all pkts w/ physical dest */
-
- /* IntrMask / IntrStatus registers */
- PciErr = (1 << 15), /* System error on the PCI bus */
- TimerIntr = (1 << 14), /* Asserted when TCTR reaches TimerInt value */
- LenChg = (1 << 13), /* Cable length change */
- SWInt = (1 << 8), /* Software-requested interrupt */
- TxEmpty = (1 << 7), /* No Tx descriptors available */
- RxFIFOOvr = (1 << 6), /* Rx FIFO Overflow */
- LinkChg = (1 << 5), /* Packet underrun, or link change */
- RxEmpty = (1 << 4), /* No Rx descriptors available */
- TxErr = (1 << 3), /* Tx error */
- TxOK = (1 << 2), /* Tx packet sent */
- RxErr = (1 << 1), /* Rx error */
- RxOK = (1 << 0), /* Rx packet received */
- IntrResvd = (1 << 10), /* reserved, according to RealTek engineers,
- but hardware likes to raise it */
-
- IntrAll = PciErr | TimerIntr | LenChg | SWInt | TxEmpty |
- RxFIFOOvr | LinkChg | RxEmpty | TxErr | TxOK |
- RxErr | RxOK | IntrResvd,
-
- /* C mode command register */
- CmdReset = (1 << 4), /* Enable to reset; self-clearing */
- RxOn = (1 << 3), /* Rx mode enable */
- TxOn = (1 << 2), /* Tx mode enable */
-
- /* C+ mode command register */
- RxVlanOn = (1 << 6), /* Rx VLAN de-tagging enable */
- RxChkSum = (1 << 5), /* Rx checksum offload enable */
- PCIDAC = (1 << 4), /* PCI Dual Address Cycle (64-bit PCI) */
- PCIMulRW = (1 << 3), /* Enable PCI read/write multiple */
- CpRxOn = (1 << 1), /* Rx mode enable */
- CpTxOn = (1 << 0), /* Tx mode enable */
-
- /* Cfg9436 EEPROM control register */
- Cfg9346_Lock = 0x00, /* Lock ConfigX/MII register access */
- Cfg9346_Unlock = 0xC0, /* Unlock ConfigX/MII register access */
-
- /* TxConfig register */
- IFG = (1 << 25) | (1 << 24), /* standard IEEE interframe gap */
- TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
-
- /* Early Tx Threshold register */
- TxThreshMask = 0x3f, /* Mask bits 5-0 */
- TxThreshMax = 2048, /* Max early Tx threshold */
-
- /* Config1 register */
- DriverLoaded = (1 << 5), /* Software marker, driver is loaded */
- LWACT = (1 << 4), /* LWAKE active mode */
- PMEnable = (1 << 0), /* Enable various PM features of chip */
-
- /* Config3 register */
- PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */
- MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
- LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
-
- /* Config4 register */
- LWPTN = (1 << 1), /* LWAKE Pattern */
- LWPME = (1 << 4), /* LANWAKE vs PMEB */
-
- /* Config5 register */
- BWF = (1 << 6), /* Accept Broadcast wakeup frame */
- MWF = (1 << 5), /* Accept Multicast wakeup frame */
- UWF = (1 << 4), /* Accept Unicast wakeup frame */
- LANWake = (1 << 1), /* Enable LANWake signal */
- PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
-
- cp_norx_intr_mask = PciErr | LinkChg | TxOK | TxErr | TxEmpty,
- cp_rx_intr_mask = RxOK | RxErr | RxEmpty | RxFIFOOvr,
- cp_intr_mask = cp_rx_intr_mask | cp_norx_intr_mask,
-};
-
-static const unsigned int cp_rx_config =
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-
-struct cp_desc {
- __le32 opts1;
- __le32 opts2;
- __le64 addr;
-};
-
-struct cp_dma_stats {
- __le64 tx_ok;
- __le64 rx_ok;
- __le64 tx_err;
- __le32 rx_err;
- __le16 rx_fifo;
- __le16 frame_align;
- __le32 tx_ok_1col;
- __le32 tx_ok_mcol;
- __le64 rx_ok_phys;
- __le64 rx_ok_bcast;
- __le32 rx_ok_mcast;
- __le16 tx_abort;
- __le16 tx_underrun;
-} __packed;
-
-struct cp_extra_stats {
- unsigned long rx_frags;
-};
-
-struct cp_private {
- void __iomem *regs;
- struct net_device *dev;
- spinlock_t lock;
- u32 msg_enable;
-
- struct napi_struct napi;
-
- struct pci_dev *pdev;
- u32 rx_config;
- u16 cpcmd;
-
- struct cp_extra_stats cp_stats;
-
- unsigned rx_head ____cacheline_aligned;
- unsigned rx_tail;
- struct cp_desc *rx_ring;
- struct sk_buff *rx_skb[CP_RX_RING_SIZE];
-
- unsigned tx_head ____cacheline_aligned;
- unsigned tx_tail;
- struct cp_desc *tx_ring;
- struct sk_buff *tx_skb[CP_TX_RING_SIZE];
-
- unsigned rx_buf_sz;
- unsigned wol_enabled : 1; /* Is Wake-on-LAN enabled? */
-
- dma_addr_t ring_dma;
-
- struct mii_if_info mii_if;
-};
-
-#define cpr8(reg) readb(cp->regs + (reg))
-#define cpr16(reg) readw(cp->regs + (reg))
-#define cpr32(reg) readl(cp->regs + (reg))
-#define cpw8(reg,val) writeb((val), cp->regs + (reg))
-#define cpw16(reg,val) writew((val), cp->regs + (reg))
-#define cpw32(reg,val) writel((val), cp->regs + (reg))
-#define cpw8_f(reg,val) do { \
- writeb((val), cp->regs + (reg)); \
- readb(cp->regs + (reg)); \
- } while (0)
-#define cpw16_f(reg,val) do { \
- writew((val), cp->regs + (reg)); \
- readw(cp->regs + (reg)); \
- } while (0)
-#define cpw32_f(reg,val) do { \
- writel((val), cp->regs + (reg)); \
- readl(cp->regs + (reg)); \
- } while (0)
-
-
-static void __cp_set_rx_mode (struct net_device *dev);
-static void cp_tx (struct cp_private *cp);
-static void cp_clean_rings (struct cp_private *cp);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void cp_poll_controller(struct net_device *dev);
-#endif
-static int cp_get_eeprom_len(struct net_device *dev);
-static int cp_get_eeprom(struct net_device *dev,
- struct ethtool_eeprom *eeprom, u8 *data);
-static int cp_set_eeprom(struct net_device *dev,
- struct ethtool_eeprom *eeprom, u8 *data);
-
-static DEFINE_PCI_DEVICE_TABLE(cp_pci_tbl) = {
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), },
- { PCI_DEVICE(PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322), },
- { },
-};
-MODULE_DEVICE_TABLE(pci, cp_pci_tbl);
-
-static struct {
- const char str[ETH_GSTRING_LEN];
-} ethtool_stats_keys[] = {
- { "tx_ok" },
- { "rx_ok" },
- { "tx_err" },
- { "rx_err" },
- { "rx_fifo" },
- { "frame_align" },
- { "tx_ok_1col" },
- { "tx_ok_mcol" },
- { "rx_ok_phys" },
- { "rx_ok_bcast" },
- { "rx_ok_mcast" },
- { "tx_abort" },
- { "tx_underrun" },
- { "rx_frags" },
-};
-
-
-static inline void cp_set_rxbufsize (struct cp_private *cp)
-{
- unsigned int mtu = cp->dev->mtu;
-
- if (mtu > ETH_DATA_LEN)
- /* MTU + ethernet header + FCS + optional VLAN tag */
- cp->rx_buf_sz = mtu + ETH_HLEN + 8;
- else
- cp->rx_buf_sz = PKT_BUF_SZ;
-}
-
-static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb,
- struct cp_desc *desc)
-{
- u32 opts2 = le32_to_cpu(desc->opts2);
-
- skb->protocol = eth_type_trans (skb, cp->dev);
-
- cp->dev->stats.rx_packets++;
- cp->dev->stats.rx_bytes += skb->len;
-
- if (opts2 & RxVlanTagged)
- __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
-
- napi_gro_receive(&cp->napi, skb);
-}
-
-static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail,
- u32 status, u32 len)
-{
- netif_dbg(cp, rx_err, cp->dev, "rx err, slot %d status 0x%x len %d\n",
- rx_tail, status, len);
- cp->dev->stats.rx_errors++;
- if (status & RxErrFrame)
- cp->dev->stats.rx_frame_errors++;
- if (status & RxErrCRC)
- cp->dev->stats.rx_crc_errors++;
- if ((status & RxErrRunt) || (status & RxErrLong))
- cp->dev->stats.rx_length_errors++;
- if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag))
- cp->dev->stats.rx_length_errors++;
- if (status & RxErrFIFO)
- cp->dev->stats.rx_fifo_errors++;
-}
-
-static inline unsigned int cp_rx_csum_ok (u32 status)
-{
- unsigned int protocol = (status >> 16) & 0x3;
-
- if (((protocol == RxProtoTCP) && !(status & TCPFail)) ||
- ((protocol == RxProtoUDP) && !(status & UDPFail)))
- return 1;
- else
- return 0;
-}
-
-static int cp_rx_poll(struct napi_struct *napi, int budget)
-{
- struct cp_private *cp = container_of(napi, struct cp_private, napi);
- struct net_device *dev = cp->dev;
- unsigned int rx_tail = cp->rx_tail;
- int rx;
-
-rx_status_loop:
- rx = 0;
- cpw16(IntrStatus, cp_rx_intr_mask);
-
- while (1) {
- u32 status, len;
- dma_addr_t mapping;
- struct sk_buff *skb, *new_skb;
- struct cp_desc *desc;
- const unsigned buflen = cp->rx_buf_sz;
-
- skb = cp->rx_skb[rx_tail];
- BUG_ON(!skb);
-
- desc = &cp->rx_ring[rx_tail];
- status = le32_to_cpu(desc->opts1);
- if (status & DescOwn)
- break;
-
- len = (status & 0x1fff) - 4;
- mapping = le64_to_cpu(desc->addr);
-
- if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) {
- /* we don't support incoming fragmented frames.
- * instead, we attempt to ensure that the
- * pre-allocated RX skbs are properly sized such
- * that RX fragments are never encountered
- */
- cp_rx_err_acct(cp, rx_tail, status, len);
- dev->stats.rx_dropped++;
- cp->cp_stats.rx_frags++;
- goto rx_next;
- }
-
- if (status & (RxError | RxErrFIFO)) {
- cp_rx_err_acct(cp, rx_tail, status, len);
- goto rx_next;
- }
-
- netif_dbg(cp, rx_status, dev, "rx slot %d status 0x%x len %d\n",
- rx_tail, status, len);
-
- new_skb = netdev_alloc_skb_ip_align(dev, buflen);
- if (!new_skb) {
- dev->stats.rx_dropped++;
- goto rx_next;
- }
-
- dma_unmap_single(&cp->pdev->dev, mapping,
- buflen, PCI_DMA_FROMDEVICE);
-
- /* Handle checksum offloading for incoming packets. */
- if (cp_rx_csum_ok(status))
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- else
- skb_checksum_none_assert(skb);
-
- skb_put(skb, len);
-
- mapping = dma_map_single(&cp->pdev->dev, new_skb->data, buflen,
- PCI_DMA_FROMDEVICE);
- cp->rx_skb[rx_tail] = new_skb;
-
- cp_rx_skb(cp, skb, desc);
- rx++;
-
-rx_next:
- cp->rx_ring[rx_tail].opts2 = 0;
- cp->rx_ring[rx_tail].addr = cpu_to_le64(mapping);
- if (rx_tail == (CP_RX_RING_SIZE - 1))
- desc->opts1 = cpu_to_le32(DescOwn | RingEnd |
- cp->rx_buf_sz);
- else
- desc->opts1 = cpu_to_le32(DescOwn | cp->rx_buf_sz);
- rx_tail = NEXT_RX(rx_tail);
-
- if (rx >= budget)
- break;
- }
-
- cp->rx_tail = rx_tail;
-
- /* if we did not reach work limit, then we're done with
- * this round of polling
- */
- if (rx < budget) {
- unsigned long flags;
-
- if (cpr16(IntrStatus) & cp_rx_intr_mask)
- goto rx_status_loop;
-
- spin_lock_irqsave(&cp->lock, flags);
- __napi_complete(napi);
- cpw16_f(IntrMask, cp_intr_mask);
- spin_unlock_irqrestore(&cp->lock, flags);
- }
-
- return rx;
-}
-
-static irqreturn_t cp_interrupt (int irq, void *dev_instance)
-{
- struct net_device *dev = dev_instance;
- struct cp_private *cp;
- u16 status;
-
- if (unlikely(dev == NULL))
- return IRQ_NONE;
- cp = netdev_priv(dev);
-
- status = cpr16(IntrStatus);
- if (!status || (status == 0xFFFF))
- return IRQ_NONE;
-
- netif_dbg(cp, intr, dev, "intr, status %04x cmd %02x cpcmd %04x\n",
- status, cpr8(Cmd), cpr16(CpCmd));
-
- cpw16(IntrStatus, status & ~cp_rx_intr_mask);
-
- spin_lock(&cp->lock);
-
- /* close possible race's with dev_close */
- if (unlikely(!netif_running(dev))) {
- cpw16(IntrMask, 0);
- spin_unlock(&cp->lock);
- return IRQ_HANDLED;
- }
-
- if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr))
- if (napi_schedule_prep(&cp->napi)) {
- cpw16_f(IntrMask, cp_norx_intr_mask);
- __napi_schedule(&cp->napi);
- }
-
- if (status & (TxOK | TxErr | TxEmpty | SWInt))
- cp_tx(cp);
- if (status & LinkChg)
- mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
-
- spin_unlock(&cp->lock);
-
- if (status & PciErr) {
- u16 pci_status;
-
- pci_read_config_word(cp->pdev, PCI_STATUS, &pci_status);
- pci_write_config_word(cp->pdev, PCI_STATUS, pci_status);
- netdev_err(dev, "PCI bus error, status=%04x, PCI status=%04x\n",
- status, pci_status);
-
- /* TODO: reset hardware */
- }
-
- return IRQ_HANDLED;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling receive - used by netconsole and other diagnostic tools
- * to allow network i/o with interrupts disabled.
- */
-static void cp_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- cp_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static void cp_tx (struct cp_private *cp)
-{
- unsigned tx_head = cp->tx_head;
- unsigned tx_tail = cp->tx_tail;
-
- while (tx_tail != tx_head) {
- struct cp_desc *txd = cp->tx_ring + tx_tail;
- struct sk_buff *skb;
- u32 status;
-
- rmb();
- status = le32_to_cpu(txd->opts1);
- if (status & DescOwn)
- break;
-
- skb = cp->tx_skb[tx_tail];
- BUG_ON(!skb);
-
- dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr),
- le32_to_cpu(txd->opts1) & 0xffff,
- PCI_DMA_TODEVICE);
-
- if (status & LastFrag) {
- if (status & (TxError | TxFIFOUnder)) {
- netif_dbg(cp, tx_err, cp->dev,
- "tx err, status 0x%x\n", status);
- cp->dev->stats.tx_errors++;
- if (status & TxOWC)
- cp->dev->stats.tx_window_errors++;
- if (status & TxMaxCol)
- cp->dev->stats.tx_aborted_errors++;
- if (status & TxLinkFail)
- cp->dev->stats.tx_carrier_errors++;
- if (status & TxFIFOUnder)
- cp->dev->stats.tx_fifo_errors++;
- } else {
- cp->dev->stats.collisions +=
- ((status >> TxColCntShift) & TxColCntMask);
- cp->dev->stats.tx_packets++;
- cp->dev->stats.tx_bytes += skb->len;
- netif_dbg(cp, tx_done, cp->dev,
- "tx done, slot %d\n", tx_tail);
- }
- dev_kfree_skb_irq(skb);
- }
-
- cp->tx_skb[tx_tail] = NULL;
-
- tx_tail = NEXT_TX(tx_tail);
- }
-
- cp->tx_tail = tx_tail;
-
- if (TX_BUFFS_AVAIL(cp) > (MAX_SKB_FRAGS + 1))
- netif_wake_queue(cp->dev);
-}
-
-static inline u32 cp_tx_vlan_tag(struct sk_buff *skb)
-{
- return vlan_tx_tag_present(skb) ?
- TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
-}
-
-static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
- struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned entry;
- u32 eor, flags;
- unsigned long intr_flags;
- __le32 opts2;
- int mss = 0;
-
- spin_lock_irqsave(&cp->lock, intr_flags);
-
- /* This is a hard error, log it. */
- if (TX_BUFFS_AVAIL(cp) <= (skb_shinfo(skb)->nr_frags + 1)) {
- netif_stop_queue(dev);
- spin_unlock_irqrestore(&cp->lock, intr_flags);
- netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
- return NETDEV_TX_BUSY;
- }
-
- entry = cp->tx_head;
- eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
- mss = skb_shinfo(skb)->gso_size;
-
- opts2 = cpu_to_le32(cp_tx_vlan_tag(skb));
-
- if (skb_shinfo(skb)->nr_frags == 0) {
- struct cp_desc *txd = &cp->tx_ring[entry];
- u32 len;
- dma_addr_t mapping;
-
- len = skb->len;
- mapping = dma_map_single(&cp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
- txd->opts2 = opts2;
- txd->addr = cpu_to_le64(mapping);
- wmb();
-
- flags = eor | len | DescOwn | FirstFrag | LastFrag;
-
- if (mss)
- flags |= LargeSend | ((mss & MSSMask) << MSSShift);
- else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- const struct iphdr *ip = ip_hdr(skb);
- if (ip->protocol == IPPROTO_TCP)
- flags |= IPCS | TCPCS;
- else if (ip->protocol == IPPROTO_UDP)
- flags |= IPCS | UDPCS;
- else
- WARN_ON(1); /* we need a WARN() */
- }
-
- txd->opts1 = cpu_to_le32(flags);
- wmb();
-
- cp->tx_skb[entry] = skb;
- entry = NEXT_TX(entry);
- } else {
- struct cp_desc *txd;
- u32 first_len, first_eor;
- dma_addr_t first_mapping;
- int frag, first_entry = entry;
- const struct iphdr *ip = ip_hdr(skb);
-
- /* We must give this initial chunk to the device last.
- * Otherwise we could race with the device.
- */
- first_eor = eor;
- first_len = skb_headlen(skb);
- first_mapping = dma_map_single(&cp->pdev->dev, skb->data,
- first_len, PCI_DMA_TODEVICE);
- cp->tx_skb[entry] = skb;
- entry = NEXT_TX(entry);
-
- for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
- skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag];
- u32 len;
- u32 ctrl;
- dma_addr_t mapping;
-
- len = this_frag->size;
- mapping = dma_map_single(&cp->pdev->dev,
- ((void *) page_address(this_frag->page) +
- this_frag->page_offset),
- len, PCI_DMA_TODEVICE);
- eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
-
- ctrl = eor | len | DescOwn;
-
- if (mss)
- ctrl |= LargeSend |
- ((mss & MSSMask) << MSSShift);
- else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- if (ip->protocol == IPPROTO_TCP)
- ctrl |= IPCS | TCPCS;
- else if (ip->protocol == IPPROTO_UDP)
- ctrl |= IPCS | UDPCS;
- else
- BUG();
- }
-
- if (frag == skb_shinfo(skb)->nr_frags - 1)
- ctrl |= LastFrag;
-
- txd = &cp->tx_ring[entry];
- txd->opts2 = opts2;
- txd->addr = cpu_to_le64(mapping);
- wmb();
-
- txd->opts1 = cpu_to_le32(ctrl);
- wmb();
-
- cp->tx_skb[entry] = skb;
- entry = NEXT_TX(entry);
- }
-
- txd = &cp->tx_ring[first_entry];
- txd->opts2 = opts2;
- txd->addr = cpu_to_le64(first_mapping);
- wmb();
-
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- if (ip->protocol == IPPROTO_TCP)
- txd->opts1 = cpu_to_le32(first_eor | first_len |
- FirstFrag | DescOwn |
- IPCS | TCPCS);
- else if (ip->protocol == IPPROTO_UDP)
- txd->opts1 = cpu_to_le32(first_eor | first_len |
- FirstFrag | DescOwn |
- IPCS | UDPCS);
- else
- BUG();
- } else
- txd->opts1 = cpu_to_le32(first_eor | first_len |
- FirstFrag | DescOwn);
- wmb();
- }
- cp->tx_head = entry;
- netif_dbg(cp, tx_queued, cp->dev, "tx queued, slot %d, skblen %d\n",
- entry, skb->len);
- if (TX_BUFFS_AVAIL(cp) <= (MAX_SKB_FRAGS + 1))
- netif_stop_queue(dev);
-
- spin_unlock_irqrestore(&cp->lock, intr_flags);
-
- cpw8(TxPoll, NormalTxPoll);
-
- return NETDEV_TX_OK;
-}
-
-/* Set or clear the multicast filter for this adaptor.
- This routine is not state sensitive and need not be SMP locked. */
-
-static void __cp_set_rx_mode (struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- u32 mc_filter[2]; /* Multicast hash filter */
- int rx_mode;
- u32 tmp;
-
- /* Note: do not reorder, GCC is clever about common statements. */
- if (dev->flags & IFF_PROMISC) {
- /* Unconditionally log net taps. */
- rx_mode =
- AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
- AcceptAllPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else {
- struct netdev_hw_addr *ha;
- rx_mode = AcceptBroadcast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0;
- netdev_for_each_mc_addr(ha, dev) {
- int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- rx_mode |= AcceptMulticast;
- }
- }
-
- /* We can safely update without stopping the chip. */
- tmp = cp_rx_config | rx_mode;
- if (cp->rx_config != tmp) {
- cpw32_f (RxConfig, tmp);
- cp->rx_config = tmp;
- }
- cpw32_f (MAR0 + 0, mc_filter[0]);
- cpw32_f (MAR0 + 4, mc_filter[1]);
-}
-
-static void cp_set_rx_mode (struct net_device *dev)
-{
- unsigned long flags;
- struct cp_private *cp = netdev_priv(dev);
-
- spin_lock_irqsave (&cp->lock, flags);
- __cp_set_rx_mode(dev);
- spin_unlock_irqrestore (&cp->lock, flags);
-}
-
-static void __cp_get_stats(struct cp_private *cp)
-{
- /* only lower 24 bits valid; write any value to clear */
- cp->dev->stats.rx_missed_errors += (cpr32 (RxMissed) & 0xffffff);
- cpw32 (RxMissed, 0);
-}
-
-static struct net_device_stats *cp_get_stats(struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- /* The chip only need report frame silently dropped. */
- spin_lock_irqsave(&cp->lock, flags);
- if (netif_running(dev) && netif_device_present(dev))
- __cp_get_stats(cp);
- spin_unlock_irqrestore(&cp->lock, flags);
-
- return &dev->stats;
-}
-
-static void cp_stop_hw (struct cp_private *cp)
-{
- cpw16(IntrStatus, ~(cpr16(IntrStatus)));
- cpw16_f(IntrMask, 0);
- cpw8(Cmd, 0);
- cpw16_f(CpCmd, 0);
- cpw16_f(IntrStatus, ~(cpr16(IntrStatus)));
-
- cp->rx_tail = 0;
- cp->tx_head = cp->tx_tail = 0;
-}
-
-static void cp_reset_hw (struct cp_private *cp)
-{
- unsigned work = 1000;
-
- cpw8(Cmd, CmdReset);
-
- while (work--) {
- if (!(cpr8(Cmd) & CmdReset))
- return;
-
- schedule_timeout_uninterruptible(10);
- }
-
- netdev_err(cp->dev, "hardware reset timeout\n");
-}
-
-static inline void cp_start_hw (struct cp_private *cp)
-{
- cpw16(CpCmd, cp->cpcmd);
- cpw8(Cmd, RxOn | TxOn);
-}
-
-static void cp_init_hw (struct cp_private *cp)
-{
- struct net_device *dev = cp->dev;
- dma_addr_t ring_dma;
-
- cp_reset_hw(cp);
-
- cpw8_f (Cfg9346, Cfg9346_Unlock);
-
- /* Restore our idea of the MAC address. */
- cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
- cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
-
- cp_start_hw(cp);
- cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */
-
- __cp_set_rx_mode(dev);
- cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift));
-
- cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable);
- /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */
- cpw8(Config3, PARMEnable);
- cp->wol_enabled = 0;
-
- cpw8(Config5, cpr8(Config5) & PMEStatus);
-
- cpw32_f(HiTxRingAddr, 0);
- cpw32_f(HiTxRingAddr + 4, 0);
-
- ring_dma = cp->ring_dma;
- cpw32_f(RxRingAddr, ring_dma & 0xffffffff);
- cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16);
-
- ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE;
- cpw32_f(TxRingAddr, ring_dma & 0xffffffff);
- cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16);
-
- cpw16(MultiIntr, 0);
-
- cpw16_f(IntrMask, cp_intr_mask);
-
- cpw8_f(Cfg9346, Cfg9346_Lock);
-}
-
-static int cp_refill_rx(struct cp_private *cp)
-{
- struct net_device *dev = cp->dev;
- unsigned i;
-
- for (i = 0; i < CP_RX_RING_SIZE; i++) {
- struct sk_buff *skb;
- dma_addr_t mapping;
-
- skb = netdev_alloc_skb_ip_align(dev, cp->rx_buf_sz);
- if (!skb)
- goto err_out;
-
- mapping = dma_map_single(&cp->pdev->dev, skb->data,
- cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- cp->rx_skb[i] = skb;
-
- cp->rx_ring[i].opts2 = 0;
- cp->rx_ring[i].addr = cpu_to_le64(mapping);
- if (i == (CP_RX_RING_SIZE - 1))
- cp->rx_ring[i].opts1 =
- cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz);
- else
- cp->rx_ring[i].opts1 =
- cpu_to_le32(DescOwn | cp->rx_buf_sz);
- }
-
- return 0;
-
-err_out:
- cp_clean_rings(cp);
- return -ENOMEM;
-}
-
-static void cp_init_rings_index (struct cp_private *cp)
-{
- cp->rx_tail = 0;
- cp->tx_head = cp->tx_tail = 0;
-}
-
-static int cp_init_rings (struct cp_private *cp)
-{
- memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
- cp->tx_ring[CP_TX_RING_SIZE - 1].opts1 = cpu_to_le32(RingEnd);
-
- cp_init_rings_index(cp);
-
- return cp_refill_rx (cp);
-}
-
-static int cp_alloc_rings (struct cp_private *cp)
-{
- void *mem;
-
- mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES,
- &cp->ring_dma, GFP_KERNEL);
- if (!mem)
- return -ENOMEM;
-
- cp->rx_ring = mem;
- cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE];
-
- return cp_init_rings(cp);
-}
-
-static void cp_clean_rings (struct cp_private *cp)
-{
- struct cp_desc *desc;
- unsigned i;
-
- for (i = 0; i < CP_RX_RING_SIZE; i++) {
- if (cp->rx_skb[i]) {
- desc = cp->rx_ring + i;
- dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
- cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(cp->rx_skb[i]);
- }
- }
-
- for (i = 0; i < CP_TX_RING_SIZE; i++) {
- if (cp->tx_skb[i]) {
- struct sk_buff *skb = cp->tx_skb[i];
-
- desc = cp->tx_ring + i;
- dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
- le32_to_cpu(desc->opts1) & 0xffff,
- PCI_DMA_TODEVICE);
- if (le32_to_cpu(desc->opts1) & LastFrag)
- dev_kfree_skb(skb);
- cp->dev->stats.tx_dropped++;
- }
- }
-
- memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
- memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
-
- memset(cp->rx_skb, 0, sizeof(struct sk_buff *) * CP_RX_RING_SIZE);
- memset(cp->tx_skb, 0, sizeof(struct sk_buff *) * CP_TX_RING_SIZE);
-}
-
-static void cp_free_rings (struct cp_private *cp)
-{
- cp_clean_rings(cp);
- dma_free_coherent(&cp->pdev->dev, CP_RING_BYTES, cp->rx_ring,
- cp->ring_dma);
- cp->rx_ring = NULL;
- cp->tx_ring = NULL;
-}
-
-static int cp_open (struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- int rc;
-
- netif_dbg(cp, ifup, dev, "enabling interface\n");
-
- rc = cp_alloc_rings(cp);
- if (rc)
- return rc;
-
- napi_enable(&cp->napi);
-
- cp_init_hw(cp);
-
- rc = request_irq(dev->irq, cp_interrupt, IRQF_SHARED, dev->name, dev);
- if (rc)
- goto err_out_hw;
-
- netif_carrier_off(dev);
- mii_check_media(&cp->mii_if, netif_msg_link(cp), true);
- netif_start_queue(dev);
-
- return 0;
-
-err_out_hw:
- napi_disable(&cp->napi);
- cp_stop_hw(cp);
- cp_free_rings(cp);
- return rc;
-}
-
-static int cp_close (struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- napi_disable(&cp->napi);
-
- netif_dbg(cp, ifdown, dev, "disabling interface\n");
-
- spin_lock_irqsave(&cp->lock, flags);
-
- netif_stop_queue(dev);
- netif_carrier_off(dev);
-
- cp_stop_hw(cp);
-
- spin_unlock_irqrestore(&cp->lock, flags);
-
- free_irq(dev->irq, dev);
-
- cp_free_rings(cp);
- return 0;
-}
-
-static void cp_tx_timeout(struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- netdev_warn(dev, "Transmit timeout, status %2x %4x %4x %4x\n",
- cpr8(Cmd), cpr16(CpCmd),
- cpr16(IntrStatus), cpr16(IntrMask));
-
- spin_lock_irqsave(&cp->lock, flags);
-
- cp_stop_hw(cp);
- cp_clean_rings(cp);
- rc = cp_init_rings(cp);
- cp_start_hw(cp);
-
- netif_wake_queue(dev);
-
- spin_unlock_irqrestore(&cp->lock, flags);
-}
-
-#ifdef BROKEN
-static int cp_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct cp_private *cp = netdev_priv(dev);
- int rc;
- unsigned long flags;
-
- /* check for invalid MTU, according to hardware limits */
- if (new_mtu < CP_MIN_MTU || new_mtu > CP_MAX_MTU)
- return -EINVAL;
-
- /* if network interface not up, no need for complexity */
- if (!netif_running(dev)) {
- dev->mtu = new_mtu;
- cp_set_rxbufsize(cp); /* set new rx buf size */
- return 0;
- }
-
- spin_lock_irqsave(&cp->lock, flags);
-
- cp_stop_hw(cp); /* stop h/w and free rings */
- cp_clean_rings(cp);
-
- dev->mtu = new_mtu;
- cp_set_rxbufsize(cp); /* set new rx buf size */
-
- rc = cp_init_rings(cp); /* realloc and restart h/w */
- cp_start_hw(cp);
-
- spin_unlock_irqrestore(&cp->lock, flags);
-
- return rc;
-}
-#endif /* BROKEN */
-
-static const char mii_2_8139_map[8] = {
- BasicModeCtrl,
- BasicModeStatus,
- 0,
- 0,
- NWayAdvert,
- NWayLPAR,
- NWayExpansion,
- 0
-};
-
-static int mdio_read(struct net_device *dev, int phy_id, int location)
-{
- struct cp_private *cp = netdev_priv(dev);
-
- return location < 8 && mii_2_8139_map[location] ?
- readw(cp->regs + mii_2_8139_map[location]) : 0;
-}
-
-
-static void mdio_write(struct net_device *dev, int phy_id, int location,
- int value)
-{
- struct cp_private *cp = netdev_priv(dev);
-
- if (location == 0) {
- cpw8(Cfg9346, Cfg9346_Unlock);
- cpw16(BasicModeCtrl, value);
- cpw8(Cfg9346, Cfg9346_Lock);
- } else if (location < 8 && mii_2_8139_map[location])
- cpw16(mii_2_8139_map[location], value);
-}
-
-/* Set the ethtool Wake-on-LAN settings */
-static int netdev_set_wol (struct cp_private *cp,
- const struct ethtool_wolinfo *wol)
-{
- u8 options;
-
- options = cpr8 (Config3) & ~(LinkUp | MagicPacket);
- /* If WOL is being disabled, no need for complexity */
- if (wol->wolopts) {
- if (wol->wolopts & WAKE_PHY) options |= LinkUp;
- if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket;
- }
-
- cpw8 (Cfg9346, Cfg9346_Unlock);
- cpw8 (Config3, options);
- cpw8 (Cfg9346, Cfg9346_Lock);
-
- options = 0; /* Paranoia setting */
- options = cpr8 (Config5) & ~(UWF | MWF | BWF);
- /* If WOL is being disabled, no need for complexity */
- if (wol->wolopts) {
- if (wol->wolopts & WAKE_UCAST) options |= UWF;
- if (wol->wolopts & WAKE_BCAST) options |= BWF;
- if (wol->wolopts & WAKE_MCAST) options |= MWF;
- }
-
- cpw8 (Config5, options);
-
- cp->wol_enabled = (wol->wolopts) ? 1 : 0;
-
- return 0;
-}
-
-/* Get the ethtool Wake-on-LAN settings */
-static void netdev_get_wol (struct cp_private *cp,
- struct ethtool_wolinfo *wol)
-{
- u8 options;
-
- wol->wolopts = 0; /* Start from scratch */
- wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC |
- WAKE_MCAST | WAKE_UCAST;
- /* We don't need to go on if WOL is disabled */
- if (!cp->wol_enabled) return;
-
- options = cpr8 (Config3);
- if (options & LinkUp) wol->wolopts |= WAKE_PHY;
- if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC;
-
- options = 0; /* Paranoia setting */
- options = cpr8 (Config5);
- if (options & UWF) wol->wolopts |= WAKE_UCAST;
- if (options & BWF) wol->wolopts |= WAKE_BCAST;
- if (options & MWF) wol->wolopts |= WAKE_MCAST;
-}
-
-static void cp_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct cp_private *cp = netdev_priv(dev);
-
- strcpy (info->driver, DRV_NAME);
- strcpy (info->version, DRV_VERSION);
- strcpy (info->bus_info, pci_name(cp->pdev));
-}
-
-static int cp_get_regs_len(struct net_device *dev)
-{
- return CP_REGS_SIZE;
-}
-
-static int cp_get_sset_count (struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return CP_NUM_STATS;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static int cp_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct cp_private *cp = netdev_priv(dev);
- int rc;
- unsigned long flags;
-
- spin_lock_irqsave(&cp->lock, flags);
- rc = mii_ethtool_gset(&cp->mii_if, cmd);
- spin_unlock_irqrestore(&cp->lock, flags);
-
- return rc;
-}
-
-static int cp_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct cp_private *cp = netdev_priv(dev);
- int rc;
- unsigned long flags;
-
- spin_lock_irqsave(&cp->lock, flags);
- rc = mii_ethtool_sset(&cp->mii_if, cmd);
- spin_unlock_irqrestore(&cp->lock, flags);
-
- return rc;
-}
-
-static int cp_nway_reset(struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- return mii_nway_restart(&cp->mii_if);
-}
-
-static u32 cp_get_msglevel(struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- return cp->msg_enable;
-}
-
-static void cp_set_msglevel(struct net_device *dev, u32 value)
-{
- struct cp_private *cp = netdev_priv(dev);
- cp->msg_enable = value;
-}
-
-static int cp_set_features(struct net_device *dev, u32 features)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- if (!((dev->features ^ features) & NETIF_F_RXCSUM))
- return 0;
-
- spin_lock_irqsave(&cp->lock, flags);
-
- if (features & NETIF_F_RXCSUM)
- cp->cpcmd |= RxChkSum;
- else
- cp->cpcmd &= ~RxChkSum;
-
- if (features & NETIF_F_HW_VLAN_RX)
- cp->cpcmd |= RxVlanOn;
- else
- cp->cpcmd &= ~RxVlanOn;
-
- cpw16_f(CpCmd, cp->cpcmd);
- spin_unlock_irqrestore(&cp->lock, flags);
-
- return 0;
-}
-
-static void cp_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *p)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- if (regs->len < CP_REGS_SIZE)
- return /* -EINVAL */;
-
- regs->version = CP_REGS_VER;
-
- spin_lock_irqsave(&cp->lock, flags);
- memcpy_fromio(p, cp->regs, CP_REGS_SIZE);
- spin_unlock_irqrestore(&cp->lock, flags);
-}
-
-static void cp_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave (&cp->lock, flags);
- netdev_get_wol (cp, wol);
- spin_unlock_irqrestore (&cp->lock, flags);
-}
-
-static int cp_set_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave (&cp->lock, flags);
- rc = netdev_set_wol (cp, wol);
- spin_unlock_irqrestore (&cp->lock, flags);
-
- return rc;
-}
-
-static void cp_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
-{
- switch (stringset) {
- case ETH_SS_STATS:
- memcpy(buf, ðtool_stats_keys, sizeof(ethtool_stats_keys));
- break;
- default:
- BUG();
- break;
- }
-}
-
-static void cp_get_ethtool_stats (struct net_device *dev,
- struct ethtool_stats *estats, u64 *tmp_stats)
-{
- struct cp_private *cp = netdev_priv(dev);
- struct cp_dma_stats *nic_stats;
- dma_addr_t dma;
- int i;
-
- nic_stats = dma_alloc_coherent(&cp->pdev->dev, sizeof(*nic_stats),
- &dma, GFP_KERNEL);
- if (!nic_stats)
- return;
-
- /* begin NIC statistics dump */
- cpw32(StatsAddr + 4, (u64)dma >> 32);
- cpw32(StatsAddr, ((u64)dma & DMA_BIT_MASK(32)) | DumpStats);
- cpr32(StatsAddr);
-
- for (i = 0; i < 1000; i++) {
- if ((cpr32(StatsAddr) & DumpStats) == 0)
- break;
- udelay(10);
- }
- cpw32(StatsAddr, 0);
- cpw32(StatsAddr + 4, 0);
- cpr32(StatsAddr);
-
- i = 0;
- tmp_stats[i++] = le64_to_cpu(nic_stats->tx_ok);
- tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok);
- tmp_stats[i++] = le64_to_cpu(nic_stats->tx_err);
- tmp_stats[i++] = le32_to_cpu(nic_stats->rx_err);
- tmp_stats[i++] = le16_to_cpu(nic_stats->rx_fifo);
- tmp_stats[i++] = le16_to_cpu(nic_stats->frame_align);
- tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_1col);
- tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_mcol);
- tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_phys);
- tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_bcast);
- tmp_stats[i++] = le32_to_cpu(nic_stats->rx_ok_mcast);
- tmp_stats[i++] = le16_to_cpu(nic_stats->tx_abort);
- tmp_stats[i++] = le16_to_cpu(nic_stats->tx_underrun);
- tmp_stats[i++] = cp->cp_stats.rx_frags;
- BUG_ON(i != CP_NUM_STATS);
-
- dma_free_coherent(&cp->pdev->dev, sizeof(*nic_stats), nic_stats, dma);
-}
-
-static const struct ethtool_ops cp_ethtool_ops = {
- .get_drvinfo = cp_get_drvinfo,
- .get_regs_len = cp_get_regs_len,
- .get_sset_count = cp_get_sset_count,
- .get_settings = cp_get_settings,
- .set_settings = cp_set_settings,
- .nway_reset = cp_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_msglevel = cp_get_msglevel,
- .set_msglevel = cp_set_msglevel,
- .get_regs = cp_get_regs,
- .get_wol = cp_get_wol,
- .set_wol = cp_set_wol,
- .get_strings = cp_get_strings,
- .get_ethtool_stats = cp_get_ethtool_stats,
- .get_eeprom_len = cp_get_eeprom_len,
- .get_eeprom = cp_get_eeprom,
- .set_eeprom = cp_set_eeprom,
-};
-
-static int cp_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct cp_private *cp = netdev_priv(dev);
- int rc;
- unsigned long flags;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irqsave(&cp->lock, flags);
- rc = generic_mii_ioctl(&cp->mii_if, if_mii(rq), cmd, NULL);
- spin_unlock_irqrestore(&cp->lock, flags);
- return rc;
-}
-
-static int cp_set_mac_address(struct net_device *dev, void *p)
-{
- struct cp_private *cp = netdev_priv(dev);
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
- spin_lock_irq(&cp->lock);
-
- cpw8_f(Cfg9346, Cfg9346_Unlock);
- cpw32_f(MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
- cpw32_f(MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
- cpw8_f(Cfg9346, Cfg9346_Lock);
-
- spin_unlock_irq(&cp->lock);
-
- return 0;
-}
-
-/* Serial EEPROM section. */
-
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
-#define EE_CS 0x08 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
-#define EE_WRITE_0 0x00
-#define EE_WRITE_1 0x02
-#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
-#define EE_ENB (0x80 | EE_CS)
-
-/* Delay between EEPROM clock transitions.
- No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
- */
-
-#define eeprom_delay() readl(ee_addr)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_EXTEND_CMD (4)
-#define EE_WRITE_CMD (5)
-#define EE_READ_CMD (6)
-#define EE_ERASE_CMD (7)
-
-#define EE_EWDS_ADDR (0)
-#define EE_WRAL_ADDR (1)
-#define EE_ERAL_ADDR (2)
-#define EE_EWEN_ADDR (3)
-
-#define CP_EEPROM_MAGIC PCI_DEVICE_ID_REALTEK_8139
-
-static void eeprom_cmd_start(void __iomem *ee_addr)
-{
- writeb (EE_ENB & ~EE_CS, ee_addr);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-}
-
-static void eeprom_cmd(void __iomem *ee_addr, int cmd, int cmd_len)
-{
- int i;
-
- /* Shift the command bits out. */
- for (i = cmd_len - 1; i >= 0; i--) {
- int dataval = (cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- writeb (EE_ENB | dataval, ee_addr);
- eeprom_delay ();
- writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- }
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-}
-
-static void eeprom_cmd_end(void __iomem *ee_addr)
-{
- writeb (~EE_CS, ee_addr);
- eeprom_delay ();
-}
-
-static void eeprom_extend_cmd(void __iomem *ee_addr, int extend_cmd,
- int addr_len)
-{
- int cmd = (EE_EXTEND_CMD << addr_len) | (extend_cmd << (addr_len - 2));
-
- eeprom_cmd_start(ee_addr);
- eeprom_cmd(ee_addr, cmd, 3 + addr_len);
- eeprom_cmd_end(ee_addr);
-}
-
-static u16 read_eeprom (void __iomem *ioaddr, int location, int addr_len)
-{
- int i;
- u16 retval = 0;
- void __iomem *ee_addr = ioaddr + Cfg9346;
- int read_cmd = location | (EE_READ_CMD << addr_len);
-
- eeprom_cmd_start(ee_addr);
- eeprom_cmd(ee_addr, read_cmd, 3 + addr_len);
-
- for (i = 16; i > 0; i--) {
- writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- retval =
- (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
- 0);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
- }
-
- eeprom_cmd_end(ee_addr);
-
- return retval;
-}
-
-static void write_eeprom(void __iomem *ioaddr, int location, u16 val,
- int addr_len)
-{
- int i;
- void __iomem *ee_addr = ioaddr + Cfg9346;
- int write_cmd = location | (EE_WRITE_CMD << addr_len);
-
- eeprom_extend_cmd(ee_addr, EE_EWEN_ADDR, addr_len);
-
- eeprom_cmd_start(ee_addr);
- eeprom_cmd(ee_addr, write_cmd, 3 + addr_len);
- eeprom_cmd(ee_addr, val, 16);
- eeprom_cmd_end(ee_addr);
-
- eeprom_cmd_start(ee_addr);
- for (i = 0; i < 20000; i++)
- if (readb(ee_addr) & EE_DATA_READ)
- break;
- eeprom_cmd_end(ee_addr);
-
- eeprom_extend_cmd(ee_addr, EE_EWDS_ADDR, addr_len);
-}
-
-static int cp_get_eeprom_len(struct net_device *dev)
-{
- struct cp_private *cp = netdev_priv(dev);
- int size;
-
- spin_lock_irq(&cp->lock);
- size = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 256 : 128;
- spin_unlock_irq(&cp->lock);
-
- return size;
-}
-
-static int cp_get_eeprom(struct net_device *dev,
- struct ethtool_eeprom *eeprom, u8 *data)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned int addr_len;
- u16 val;
- u32 offset = eeprom->offset >> 1;
- u32 len = eeprom->len;
- u32 i = 0;
-
- eeprom->magic = CP_EEPROM_MAGIC;
-
- spin_lock_irq(&cp->lock);
-
- addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
-
- if (eeprom->offset & 1) {
- val = read_eeprom(cp->regs, offset, addr_len);
- data[i++] = (u8)(val >> 8);
- offset++;
- }
-
- while (i < len - 1) {
- val = read_eeprom(cp->regs, offset, addr_len);
- data[i++] = (u8)val;
- data[i++] = (u8)(val >> 8);
- offset++;
- }
-
- if (i < len) {
- val = read_eeprom(cp->regs, offset, addr_len);
- data[i] = (u8)val;
- }
-
- spin_unlock_irq(&cp->lock);
- return 0;
-}
-
-static int cp_set_eeprom(struct net_device *dev,
- struct ethtool_eeprom *eeprom, u8 *data)
-{
- struct cp_private *cp = netdev_priv(dev);
- unsigned int addr_len;
- u16 val;
- u32 offset = eeprom->offset >> 1;
- u32 len = eeprom->len;
- u32 i = 0;
-
- if (eeprom->magic != CP_EEPROM_MAGIC)
- return -EINVAL;
-
- spin_lock_irq(&cp->lock);
-
- addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
-
- if (eeprom->offset & 1) {
- val = read_eeprom(cp->regs, offset, addr_len) & 0xff;
- val |= (u16)data[i++] << 8;
- write_eeprom(cp->regs, offset, val, addr_len);
- offset++;
- }
-
- while (i < len - 1) {
- val = (u16)data[i++];
- val |= (u16)data[i++] << 8;
- write_eeprom(cp->regs, offset, val, addr_len);
- offset++;
- }
-
- if (i < len) {
- val = read_eeprom(cp->regs, offset, addr_len) & 0xff00;
- val |= (u16)data[i];
- write_eeprom(cp->regs, offset, val, addr_len);
- }
-
- spin_unlock_irq(&cp->lock);
- return 0;
-}
-
-/* Put the board into D3cold state and wait for WakeUp signal */
-static void cp_set_d3_state (struct cp_private *cp)
-{
- pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */
- pci_set_power_state (cp->pdev, PCI_D3hot);
-}
-
-static const struct net_device_ops cp_netdev_ops = {
- .ndo_open = cp_open,
- .ndo_stop = cp_close,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = cp_set_mac_address,
- .ndo_set_multicast_list = cp_set_rx_mode,
- .ndo_get_stats = cp_get_stats,
- .ndo_do_ioctl = cp_ioctl,
- .ndo_start_xmit = cp_start_xmit,
- .ndo_tx_timeout = cp_tx_timeout,
- .ndo_set_features = cp_set_features,
-#ifdef BROKEN
- .ndo_change_mtu = cp_change_mtu,
-#endif
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = cp_poll_controller,
-#endif
-};
-
-static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct net_device *dev;
- struct cp_private *cp;
- int rc;
- void __iomem *regs;
- resource_size_t pciaddr;
- unsigned int addr_len, i, pci_using_dac;
-
-#ifndef MODULE
- static int version_printed;
- if (version_printed++ == 0)
- pr_info("%s", version);
-#endif
-
- if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision < 0x20) {
- dev_info(&pdev->dev,
- "This (id %04x:%04x rev %02x) is not an 8139C+ compatible chip, use 8139too\n",
- pdev->vendor, pdev->device, pdev->revision);
- return -ENODEV;
- }
-
- dev = alloc_etherdev(sizeof(struct cp_private));
- if (!dev)
- return -ENOMEM;
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- cp = netdev_priv(dev);
- cp->pdev = pdev;
- cp->dev = dev;
- cp->msg_enable = (debug < 0 ? CP_DEF_MSG_ENABLE : debug);
- spin_lock_init (&cp->lock);
- cp->mii_if.dev = dev;
- cp->mii_if.mdio_read = mdio_read;
- cp->mii_if.mdio_write = mdio_write;
- cp->mii_if.phy_id = CP_INTERNAL_PHY;
- cp->mii_if.phy_id_mask = 0x1f;
- cp->mii_if.reg_num_mask = 0x1f;
- cp_set_rxbufsize(cp);
-
- rc = pci_enable_device(pdev);
- if (rc)
- goto err_out_free;
-
- rc = pci_set_mwi(pdev);
- if (rc)
- goto err_out_disable;
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- goto err_out_mwi;
-
- pciaddr = pci_resource_start(pdev, 1);
- if (!pciaddr) {
- rc = -EIO;
- dev_err(&pdev->dev, "no MMIO resource\n");
- goto err_out_res;
- }
- if (pci_resource_len(pdev, 1) < CP_REGS_SIZE) {
- rc = -EIO;
- dev_err(&pdev->dev, "MMIO resource (%llx) too small\n",
- (unsigned long long)pci_resource_len(pdev, 1));
- goto err_out_res;
- }
-
- /* Configure DMA attributes. */
- if ((sizeof(dma_addr_t) > 4) &&
- !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) &&
- !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- pci_using_dac = 0;
-
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev,
- "No usable DMA configuration, aborting\n");
- goto err_out_res;
- }
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev,
- "No usable consistent DMA configuration, aborting\n");
- goto err_out_res;
- }
- }
-
- cp->cpcmd = (pci_using_dac ? PCIDAC : 0) |
- PCIMulRW | RxChkSum | CpRxOn | CpTxOn;
-
- dev->features |= NETIF_F_RXCSUM;
- dev->hw_features |= NETIF_F_RXCSUM;
-
- regs = ioremap(pciaddr, CP_REGS_SIZE);
- if (!regs) {
- rc = -EIO;
- dev_err(&pdev->dev, "Cannot map PCI MMIO (%Lx@%Lx)\n",
- (unsigned long long)pci_resource_len(pdev, 1),
- (unsigned long long)pciaddr);
- goto err_out_res;
- }
- dev->base_addr = (unsigned long) regs;
- cp->regs = regs;
-
- cp_stop_hw(cp);
-
- /* read MAC address from EEPROM */
- addr_len = read_eeprom (regs, 0, 8) == 0x8129 ? 8 : 6;
- for (i = 0; i < 3; i++)
- ((__le16 *) (dev->dev_addr))[i] =
- cpu_to_le16(read_eeprom (regs, i + 7, addr_len));
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-
- dev->netdev_ops = &cp_netdev_ops;
- netif_napi_add(dev, &cp->napi, cp_rx_poll, 16);
- dev->ethtool_ops = &cp_ethtool_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-
- if (pci_using_dac)
- dev->features |= NETIF_F_HIGHDMA;
-
- /* disabled by default until verified */
- dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
- NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
- dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
- NETIF_F_HIGHDMA;
-
- dev->irq = pdev->irq;
-
- rc = register_netdev(dev);
- if (rc)
- goto err_out_iomap;
-
- netdev_info(dev, "RTL-8139C+ at 0x%lx, %pM, IRQ %d\n",
- dev->base_addr, dev->dev_addr, dev->irq);
-
- pci_set_drvdata(pdev, dev);
-
- /* enable busmastering and memory-write-invalidate */
- pci_set_master(pdev);
-
- if (cp->wol_enabled)
- cp_set_d3_state (cp);
-
- return 0;
-
-err_out_iomap:
- iounmap(regs);
-err_out_res:
- pci_release_regions(pdev);
-err_out_mwi:
- pci_clear_mwi(pdev);
-err_out_disable:
- pci_disable_device(pdev);
-err_out_free:
- free_netdev(dev);
- return rc;
-}
-
-static void cp_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct cp_private *cp = netdev_priv(dev);
-
- unregister_netdev(dev);
- iounmap(cp->regs);
- if (cp->wol_enabled)
- pci_set_power_state (pdev, PCI_D0);
- pci_release_regions(pdev);
- pci_clear_mwi(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- free_netdev(dev);
-}
-
-#ifdef CONFIG_PM
-static int cp_suspend (struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- if (!netif_running(dev))
- return 0;
-
- netif_device_detach (dev);
- netif_stop_queue (dev);
-
- spin_lock_irqsave (&cp->lock, flags);
-
- /* Disable Rx and Tx */
- cpw16 (IntrMask, 0);
- cpw8 (Cmd, cpr8 (Cmd) & (~RxOn | ~TxOn));
-
- spin_unlock_irqrestore (&cp->lock, flags);
-
- pci_save_state(pdev);
- pci_enable_wake(pdev, pci_choose_state(pdev, state), cp->wol_enabled);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
- return 0;
-}
-
-static int cp_resume (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct cp_private *cp = netdev_priv(dev);
- unsigned long flags;
-
- if (!netif_running(dev))
- return 0;
-
- netif_device_attach (dev);
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- pci_enable_wake(pdev, PCI_D0, 0);
-
- /* FIXME: sh*t may happen if the Rx ring buffer is depleted */
- cp_init_rings_index (cp);
- cp_init_hw (cp);
- netif_start_queue (dev);
-
- spin_lock_irqsave (&cp->lock, flags);
-
- mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
-
- spin_unlock_irqrestore (&cp->lock, flags);
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static struct pci_driver cp_driver = {
- .name = DRV_NAME,
- .id_table = cp_pci_tbl,
- .probe = cp_init_one,
- .remove = cp_remove_one,
-#ifdef CONFIG_PM
- .resume = cp_resume,
- .suspend = cp_suspend,
-#endif
-};
-
-static int __init cp_init (void)
-{
-#ifdef MODULE
- pr_info("%s", version);
-#endif
- return pci_register_driver(&cp_driver);
-}
-
-static void __exit cp_exit (void)
-{
- pci_unregister_driver (&cp_driver);
-}
-
-module_init(cp_init);
-module_exit(cp_exit);
+++ /dev/null
-/*
-
- 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
-
- Maintained by Jeff Garzik <jgarzik@pobox.com>
- Copyright 2000-2002 Jeff Garzik
-
- Much code comes from Donald Becker's rtl8139.c driver,
- versions 1.13 and older. This driver was originally based
- on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
-
- -----<snip>-----
-
- Written 1997-2001 by Donald Becker.
- This software may be used and distributed according to the
- terms of the GNU General Public License (GPL), incorporated
- herein by reference. Drivers based on or derived from this
- code fall under the GPL and must retain the authorship,
- copyright and license notice. This file is not a complete
- program and may only be used when the entire operating
- system is licensed under the GPL.
-
- This driver is for boards based on the RTL8129 and RTL8139
- PCI ethernet chips.
-
- The author may be reached as becker@scyld.com, or C/O Scyld
- Computing Corporation 410 Severn Ave., Suite 210 Annapolis
- MD 21403
-
- Support and updates available at
- http://www.scyld.com/network/rtl8139.html
-
- Twister-tuning table provided by Kinston
- <shangh@realtek.com.tw>.
-
- -----<snip>-----
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- Contributors:
-
- Donald Becker - he wrote the original driver, kudos to him!
- (but please don't e-mail him for support, this isn't his driver)
-
- Tigran Aivazian - bug fixes, skbuff free cleanup
-
- Martin Mares - suggestions for PCI cleanup
-
- David S. Miller - PCI DMA and softnet updates
-
- Ernst Gill - fixes ported from BSD driver
-
- Daniel Kobras - identified specific locations of
- posted MMIO write bugginess
-
- Gerard Sharp - bug fix, testing and feedback
-
- David Ford - Rx ring wrap fix
-
- Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
- to find and fix a crucial bug on older chipsets.
-
- Donald Becker/Chris Butterworth/Marcus Westergren -
- Noticed various Rx packet size-related buglets.
-
- Santiago Garcia Mantinan - testing and feedback
-
- Jens David - 2.2.x kernel backports
-
- Martin Dennett - incredibly helpful insight on undocumented
- features of the 8139 chips
-
- Jean-Jacques Michel - bug fix
-
- Tobias Ringström - Rx interrupt status checking suggestion
-
- Andrew Morton - Clear blocked signals, avoid
- buffer overrun setting current->comm.
-
- Kalle Olavi Niemitalo - Wake-on-LAN ioctls
-
- Robert Kuebel - Save kernel thread from dying on any signal.
-
- Submitting bug reports:
-
- "rtl8139-diag -mmmaaavvveefN" output
- enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
-
-*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define DRV_NAME "8139too"
-#define DRV_VERSION "0.9.28"
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/compiler.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/rtnetlink.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/completion.h>
-#include <linux/crc32.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <linux/gfp.h>
-#include <asm/irq.h>
-
-#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
-
-/* Default Message level */
-#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
- NETIF_MSG_PROBE | \
- NETIF_MSG_LINK)
-
-
-/* define to 1, 2 or 3 to enable copious debugging info */
-#define RTL8139_DEBUG 0
-
-/* define to 1 to disable lightweight runtime debugging checks */
-#undef RTL8139_NDEBUG
-
-
-#ifdef RTL8139_NDEBUG
-# define assert(expr) do {} while (0)
-#else
-# define assert(expr) \
- if (unlikely(!(expr))) { \
- pr_err("Assertion failed! %s,%s,%s,line=%d\n", \
- #expr, __FILE__, __func__, __LINE__); \
- }
-#endif
-
-
-/* A few user-configurable values. */
-/* media options */
-#define MAX_UNITS 8
-static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-/* Whether to use MMIO or PIO. Default to MMIO. */
-#ifdef CONFIG_8139TOO_PIO
-static int use_io = 1;
-#else
-static int use_io = 0;
-#endif
-
-/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static int multicast_filter_limit = 32;
-
-/* bitmapped message enable number */
-static int debug = -1;
-
-/*
- * Receive ring size
- * Warning: 64K ring has hardware issues and may lock up.
- */
-#if defined(CONFIG_SH_DREAMCAST)
-#define RX_BUF_IDX 0 /* 8K ring */
-#else
-#define RX_BUF_IDX 2 /* 32K ring */
-#endif
-#define RX_BUF_LEN (8192 << RX_BUF_IDX)
-#define RX_BUF_PAD 16
-#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
-
-#if RX_BUF_LEN == 65536
-#define RX_BUF_TOT_LEN RX_BUF_LEN
-#else
-#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
-#endif
-
-/* Number of Tx descriptor registers. */
-#define NUM_TX_DESC 4
-
-/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
-#define MAX_ETH_FRAME_SIZE 1536
-
-/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
-#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
-#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
-
-/* PCI Tuning Parameters
- Threshold is bytes transferred to chip before transmission starts. */
-#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
-
-/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
-#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
-#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
-#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
-#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (6*HZ)
-
-
-enum {
- HAS_MII_XCVR = 0x010000,
- HAS_CHIP_XCVR = 0x020000,
- HAS_LNK_CHNG = 0x040000,
-};
-
-#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */
-#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */
-#define RTL_MIN_IO_SIZE 0x80
-#define RTL8139B_IO_SIZE 256
-
-#define RTL8129_CAPS HAS_MII_XCVR
-#define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG)
-
-typedef enum {
- RTL8139 = 0,
- RTL8129,
-} board_t;
-
-
-/* indexed by board_t, above */
-static const struct {
- const char *name;
- u32 hw_flags;
-} board_info[] __devinitdata = {
- { "RealTek RTL8139", RTL8139_CAPS },
- { "RealTek RTL8129", RTL8129_CAPS },
-};
-
-
-static DEFINE_PCI_DEVICE_TABLE(rtl8139_pci_tbl) = {
- {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
-
-#ifdef CONFIG_SH_SECUREEDGE5410
- /* Bogus 8139 silicon reports 8129 without external PROM :-( */
- {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
-#endif
-#ifdef CONFIG_8139TOO_8129
- {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
-#endif
-
- /* some crazy cards report invalid vendor ids like
- * 0x0001 here. The other ids are valid and constant,
- * so we simply don't match on the main vendor id.
- */
- {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
- {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 },
- {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 },
-
- {0,}
-};
-MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
-
-static struct {
- const char str[ETH_GSTRING_LEN];
-} ethtool_stats_keys[] = {
- { "early_rx" },
- { "tx_buf_mapped" },
- { "tx_timeouts" },
- { "rx_lost_in_ring" },
-};
-
-/* The rest of these values should never change. */
-
-/* Symbolic offsets to registers. */
-enum RTL8139_registers {
- MAC0 = 0, /* Ethernet hardware address. */
- MAR0 = 8, /* Multicast filter. */
- TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
- TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
- RxBuf = 0x30,
- ChipCmd = 0x37,
- RxBufPtr = 0x38,
- RxBufAddr = 0x3A,
- IntrMask = 0x3C,
- IntrStatus = 0x3E,
- TxConfig = 0x40,
- RxConfig = 0x44,
- Timer = 0x48, /* A general-purpose counter. */
- RxMissed = 0x4C, /* 24 bits valid, write clears. */
- Cfg9346 = 0x50,
- Config0 = 0x51,
- Config1 = 0x52,
- TimerInt = 0x54,
- MediaStatus = 0x58,
- Config3 = 0x59,
- Config4 = 0x5A, /* absent on RTL-8139A */
- HltClk = 0x5B,
- MultiIntr = 0x5C,
- TxSummary = 0x60,
- BasicModeCtrl = 0x62,
- BasicModeStatus = 0x64,
- NWayAdvert = 0x66,
- NWayLPAR = 0x68,
- NWayExpansion = 0x6A,
- /* Undocumented registers, but required for proper operation. */
- FIFOTMS = 0x70, /* FIFO Control and test. */
- CSCR = 0x74, /* Chip Status and Configuration Register. */
- PARA78 = 0x78,
- FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */
- PARA7c = 0x7c, /* Magic transceiver parameter register. */
- Config5 = 0xD8, /* absent on RTL-8139A */
-};
-
-enum ClearBitMasks {
- MultiIntrClear = 0xF000,
- ChipCmdClear = 0xE2,
- Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
-};
-
-enum ChipCmdBits {
- CmdReset = 0x10,
- CmdRxEnb = 0x08,
- CmdTxEnb = 0x04,
- RxBufEmpty = 0x01,
-};
-
-/* Interrupt register bits, using my own meaningful names. */
-enum IntrStatusBits {
- PCIErr = 0x8000,
- PCSTimeout = 0x4000,
- RxFIFOOver = 0x40,
- RxUnderrun = 0x20,
- RxOverflow = 0x10,
- TxErr = 0x08,
- TxOK = 0x04,
- RxErr = 0x02,
- RxOK = 0x01,
-
- RxAckBits = RxFIFOOver | RxOverflow | RxOK,
-};
-
-enum TxStatusBits {
- TxHostOwns = 0x2000,
- TxUnderrun = 0x4000,
- TxStatOK = 0x8000,
- TxOutOfWindow = 0x20000000,
- TxAborted = 0x40000000,
- TxCarrierLost = 0x80000000,
-};
-enum RxStatusBits {
- RxMulticast = 0x8000,
- RxPhysical = 0x4000,
- RxBroadcast = 0x2000,
- RxBadSymbol = 0x0020,
- RxRunt = 0x0010,
- RxTooLong = 0x0008,
- RxCRCErr = 0x0004,
- RxBadAlign = 0x0002,
- RxStatusOK = 0x0001,
-};
-
-/* Bits in RxConfig. */
-enum rx_mode_bits {
- AcceptErr = 0x20,
- AcceptRunt = 0x10,
- AcceptBroadcast = 0x08,
- AcceptMulticast = 0x04,
- AcceptMyPhys = 0x02,
- AcceptAllPhys = 0x01,
-};
-
-/* Bits in TxConfig. */
-enum tx_config_bits {
- /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
- TxIFGShift = 24,
- TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
- TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
- TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
- TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
-
- TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
- TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */
- TxClearAbt = (1 << 0), /* Clear abort (WO) */
- TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */
- TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */
-
- TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
-};
-
-/* Bits in Config1 */
-enum Config1Bits {
- Cfg1_PM_Enable = 0x01,
- Cfg1_VPD_Enable = 0x02,
- Cfg1_PIO = 0x04,
- Cfg1_MMIO = 0x08,
- LWAKE = 0x10, /* not on 8139, 8139A */
- Cfg1_Driver_Load = 0x20,
- Cfg1_LED0 = 0x40,
- Cfg1_LED1 = 0x80,
- SLEEP = (1 << 1), /* only on 8139, 8139A */
- PWRDN = (1 << 0), /* only on 8139, 8139A */
-};
-
-/* Bits in Config3 */
-enum Config3Bits {
- Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
- Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
- Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
- Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
- Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
- Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
- Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
- Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
-};
-
-/* Bits in Config4 */
-enum Config4Bits {
- LWPTN = (1 << 2), /* not on 8139, 8139A */
-};
-
-/* Bits in Config5 */
-enum Config5Bits {
- Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
- Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
- Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
- Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */
- Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
- Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
- Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
-};
-
-enum RxConfigBits {
- /* rx fifo threshold */
- RxCfgFIFOShift = 13,
- RxCfgFIFONone = (7 << RxCfgFIFOShift),
-
- /* Max DMA burst */
- RxCfgDMAShift = 8,
- RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
-
- /* rx ring buffer length */
- RxCfgRcv8K = 0,
- RxCfgRcv16K = (1 << 11),
- RxCfgRcv32K = (1 << 12),
- RxCfgRcv64K = (1 << 11) | (1 << 12),
-
- /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
- RxNoWrap = (1 << 7),
-};
-
-/* Twister tuning parameters from RealTek.
- Completely undocumented, but required to tune bad links on some boards. */
-enum CSCRBits {
- CSCR_LinkOKBit = 0x0400,
- CSCR_LinkChangeBit = 0x0800,
- CSCR_LinkStatusBits = 0x0f000,
- CSCR_LinkDownOffCmd = 0x003c0,
- CSCR_LinkDownCmd = 0x0f3c0,
-};
-
-enum Cfg9346Bits {
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xC0,
-};
-
-typedef enum {
- CH_8139 = 0,
- CH_8139_K,
- CH_8139A,
- CH_8139A_G,
- CH_8139B,
- CH_8130,
- CH_8139C,
- CH_8100,
- CH_8100B_8139D,
- CH_8101,
-} chip_t;
-
-enum chip_flags {
- HasHltClk = (1 << 0),
- HasLWake = (1 << 1),
-};
-
-#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
- (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
-#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
-
-/* directly indexed by chip_t, above */
-static const struct {
- const char *name;
- u32 version; /* from RTL8139C/RTL8139D docs */
- u32 flags;
-} rtl_chip_info[] = {
- { "RTL-8139",
- HW_REVID(1, 0, 0, 0, 0, 0, 0),
- HasHltClk,
- },
-
- { "RTL-8139 rev K",
- HW_REVID(1, 1, 0, 0, 0, 0, 0),
- HasHltClk,
- },
-
- { "RTL-8139A",
- HW_REVID(1, 1, 1, 0, 0, 0, 0),
- HasHltClk, /* XXX undocumented? */
- },
-
- { "RTL-8139A rev G",
- HW_REVID(1, 1, 1, 0, 0, 1, 0),
- HasHltClk, /* XXX undocumented? */
- },
-
- { "RTL-8139B",
- HW_REVID(1, 1, 1, 1, 0, 0, 0),
- HasLWake,
- },
-
- { "RTL-8130",
- HW_REVID(1, 1, 1, 1, 1, 0, 0),
- HasLWake,
- },
-
- { "RTL-8139C",
- HW_REVID(1, 1, 1, 0, 1, 0, 0),
- HasLWake,
- },
-
- { "RTL-8100",
- HW_REVID(1, 1, 1, 1, 0, 1, 0),
- HasLWake,
- },
-
- { "RTL-8100B/8139D",
- HW_REVID(1, 1, 1, 0, 1, 0, 1),
- HasHltClk /* XXX undocumented? */
- | HasLWake,
- },
-
- { "RTL-8101",
- HW_REVID(1, 1, 1, 0, 1, 1, 1),
- HasLWake,
- },
-};
-
-struct rtl_extra_stats {
- unsigned long early_rx;
- unsigned long tx_buf_mapped;
- unsigned long tx_timeouts;
- unsigned long rx_lost_in_ring;
-};
-
-struct rtl8139_private {
- void __iomem *mmio_addr;
- int drv_flags;
- struct pci_dev *pci_dev;
- u32 msg_enable;
- struct napi_struct napi;
- struct net_device *dev;
-
- unsigned char *rx_ring;
- unsigned int cur_rx; /* RX buf index of next pkt */
- dma_addr_t rx_ring_dma;
-
- unsigned int tx_flag;
- unsigned long cur_tx;
- unsigned long dirty_tx;
- unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
- unsigned char *tx_bufs; /* Tx bounce buffer region. */
- dma_addr_t tx_bufs_dma;
-
- signed char phys[4]; /* MII device addresses. */
-
- /* Twister tune state. */
- char twistie, twist_row, twist_col;
-
- unsigned int watchdog_fired : 1;
- unsigned int default_port : 4; /* Last dev->if_port value. */
- unsigned int have_thread : 1;
-
- spinlock_t lock;
- spinlock_t rx_lock;
-
- chip_t chipset;
- u32 rx_config;
- struct rtl_extra_stats xstats;
-
- struct delayed_work thread;
-
- struct mii_if_info mii;
- unsigned int regs_len;
- unsigned long fifo_copy_timeout;
-};
-
-MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-module_param(use_io, int, 0);
-MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO");
-module_param(multicast_filter_limit, int, 0);
-module_param_array(media, int, NULL, 0);
-module_param_array(full_duplex, int, NULL, 0);
-module_param(debug, int, 0);
-MODULE_PARM_DESC (debug, "8139too bitmapped message enable number");
-MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
-MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
-MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
-
-static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
-static int rtl8139_open (struct net_device *dev);
-static int mdio_read (struct net_device *dev, int phy_id, int location);
-static void mdio_write (struct net_device *dev, int phy_id, int location,
- int val);
-static void rtl8139_start_thread(struct rtl8139_private *tp);
-static void rtl8139_tx_timeout (struct net_device *dev);
-static void rtl8139_init_ring (struct net_device *dev);
-static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
- struct net_device *dev);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void rtl8139_poll_controller(struct net_device *dev);
-#endif
-static int rtl8139_set_mac_address(struct net_device *dev, void *p);
-static int rtl8139_poll(struct napi_struct *napi, int budget);
-static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
-static int rtl8139_close (struct net_device *dev);
-static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
-static void rtl8139_set_rx_mode (struct net_device *dev);
-static void __set_rx_mode (struct net_device *dev);
-static void rtl8139_hw_start (struct net_device *dev);
-static void rtl8139_thread (struct work_struct *work);
-static void rtl8139_tx_timeout_task(struct work_struct *work);
-static const struct ethtool_ops rtl8139_ethtool_ops;
-
-/* write MMIO register, with flush */
-/* Flush avoids rtl8139 bug w/ posted MMIO writes */
-#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
-#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
-#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
-
-/* write MMIO register */
-#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
-
-/* read MMIO register */
-#define RTL_R8(reg) ioread8 (ioaddr + (reg))
-#define RTL_R16(reg) ioread16 (ioaddr + (reg))
-#define RTL_R32(reg) ioread32 (ioaddr + (reg))
-
-
-static const u16 rtl8139_intr_mask =
- PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
- TxErr | TxOK | RxErr | RxOK;
-
-static const u16 rtl8139_norx_intr_mask =
- PCIErr | PCSTimeout | RxUnderrun |
- TxErr | TxOK | RxErr ;
-
-#if RX_BUF_IDX == 0
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv8K | RxNoWrap |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-#elif RX_BUF_IDX == 1
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv16K | RxNoWrap |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-#elif RX_BUF_IDX == 2
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv32K | RxNoWrap |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-#elif RX_BUF_IDX == 3
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv64K |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-#else
-#error "Invalid configuration for 8139_RXBUF_IDX"
-#endif
-
-static const unsigned int rtl8139_tx_config =
- TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
-
-static void __rtl8139_cleanup_dev (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- struct pci_dev *pdev;
-
- assert (dev != NULL);
- assert (tp->pci_dev != NULL);
- pdev = tp->pci_dev;
-
- if (tp->mmio_addr)
- pci_iounmap (pdev, tp->mmio_addr);
-
- /* it's ok to call this even if we have no regions to free */
- pci_release_regions (pdev);
-
- free_netdev(dev);
- pci_set_drvdata (pdev, NULL);
-}
-
-
-static void rtl8139_chip_reset (void __iomem *ioaddr)
-{
- int i;
-
- /* Soft reset the chip. */
- RTL_W8 (ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 1000; i > 0; i--) {
- barrier();
- if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
- break;
- udelay (10);
- }
-}
-
-
-static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev)
-{
- void __iomem *ioaddr;
- struct net_device *dev;
- struct rtl8139_private *tp;
- u8 tmp8;
- int rc, disable_dev_on_err = 0;
- unsigned int i;
- unsigned long pio_start, pio_end, pio_flags, pio_len;
- unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
- u32 version;
-
- assert (pdev != NULL);
-
- /* dev and priv zeroed in alloc_etherdev */
- dev = alloc_etherdev (sizeof (*tp));
- if (dev == NULL) {
- dev_err(&pdev->dev, "Unable to alloc new net device\n");
- return ERR_PTR(-ENOMEM);
- }
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- tp = netdev_priv(dev);
- tp->pci_dev = pdev;
-
- /* enable device (incl. PCI PM wakeup and hotplug setup) */
- rc = pci_enable_device (pdev);
- if (rc)
- goto err_out;
-
- pio_start = pci_resource_start (pdev, 0);
- pio_end = pci_resource_end (pdev, 0);
- pio_flags = pci_resource_flags (pdev, 0);
- pio_len = pci_resource_len (pdev, 0);
-
- mmio_start = pci_resource_start (pdev, 1);
- mmio_end = pci_resource_end (pdev, 1);
- mmio_flags = pci_resource_flags (pdev, 1);
- mmio_len = pci_resource_len (pdev, 1);
-
- /* set this immediately, we need to know before
- * we talk to the chip directly */
- pr_debug("PIO region size == 0x%02lX\n", pio_len);
- pr_debug("MMIO region size == 0x%02lX\n", mmio_len);
-
-retry:
- if (use_io) {
- /* make sure PCI base addr 0 is PIO */
- if (!(pio_flags & IORESOURCE_IO)) {
- dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- /* check for weird/broken PCI region reporting */
- if (pio_len < RTL_MIN_IO_SIZE) {
- dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- } else {
- /* make sure PCI base addr 1 is MMIO */
- if (!(mmio_flags & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- if (mmio_len < RTL_MIN_IO_SIZE) {
- dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- }
-
- rc = pci_request_regions (pdev, DRV_NAME);
- if (rc)
- goto err_out;
- disable_dev_on_err = 1;
-
- /* enable PCI bus-mastering */
- pci_set_master (pdev);
-
- if (use_io) {
- ioaddr = pci_iomap(pdev, 0, 0);
- if (!ioaddr) {
- dev_err(&pdev->dev, "cannot map PIO, aborting\n");
- rc = -EIO;
- goto err_out;
- }
- dev->base_addr = pio_start;
- tp->regs_len = pio_len;
- } else {
- /* ioremap MMIO region */
- ioaddr = pci_iomap(pdev, 1, 0);
- if (ioaddr == NULL) {
- dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n");
- pci_release_regions(pdev);
- use_io = 1;
- goto retry;
- }
- dev->base_addr = (long) ioaddr;
- tp->regs_len = mmio_len;
- }
- tp->mmio_addr = ioaddr;
-
- /* Bring old chips out of low-power mode. */
- RTL_W8 (HltClk, 'R');
-
- /* check for missing/broken hardware */
- if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
- dev_err(&pdev->dev, "Chip not responding, ignoring board\n");
- rc = -EIO;
- goto err_out;
- }
-
- /* identify chip attached to board */
- version = RTL_R32 (TxConfig) & HW_REVID_MASK;
- for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
- if (version == rtl_chip_info[i].version) {
- tp->chipset = i;
- goto match;
- }
-
- /* if unknown chip, assume array element #0, original RTL-8139 in this case */
- i = 0;
- dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n");
- dev_dbg(&pdev->dev, "TxConfig = 0x%x\n", RTL_R32 (TxConfig));
- tp->chipset = 0;
-
-match:
- pr_debug("chipset id (%d) == index %d, '%s'\n",
- version, i, rtl_chip_info[i].name);
-
- if (tp->chipset >= CH_8139B) {
- u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
- pr_debug("PCI PM wakeup\n");
- if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
- (tmp8 & LWAKE))
- new_tmp8 &= ~LWAKE;
- new_tmp8 |= Cfg1_PM_Enable;
- if (new_tmp8 != tmp8) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tmp8);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- }
- if (rtl_chip_info[tp->chipset].flags & HasLWake) {
- tmp8 = RTL_R8 (Config4);
- if (tmp8 & LWPTN) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config4, tmp8 & ~LWPTN);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- }
- }
- } else {
- pr_debug("Old chip wakeup\n");
- tmp8 = RTL_R8 (Config1);
- tmp8 &= ~(SLEEP | PWRDN);
- RTL_W8 (Config1, tmp8);
- }
-
- rtl8139_chip_reset (ioaddr);
-
- return dev;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- if (disable_dev_on_err)
- pci_disable_device (pdev);
- return ERR_PTR(rc);
-}
-
-static const struct net_device_ops rtl8139_netdev_ops = {
- .ndo_open = rtl8139_open,
- .ndo_stop = rtl8139_close,
- .ndo_get_stats = rtl8139_get_stats,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = rtl8139_set_mac_address,
- .ndo_start_xmit = rtl8139_start_xmit,
- .ndo_set_multicast_list = rtl8139_set_rx_mode,
- .ndo_do_ioctl = netdev_ioctl,
- .ndo_tx_timeout = rtl8139_tx_timeout,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = rtl8139_poll_controller,
-#endif
-};
-
-static int __devinit rtl8139_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *dev = NULL;
- struct rtl8139_private *tp;
- int i, addr_len, option;
- void __iomem *ioaddr;
- static int board_idx = -1;
-
- assert (pdev != NULL);
- assert (ent != NULL);
-
- board_idx++;
-
- /* when we're built into the kernel, the driver version message
- * is only printed if at least one 8139 board has been found
- */
-#ifndef MODULE
- {
- static int printed_version;
- if (!printed_version++)
- pr_info(RTL8139_DRIVER_NAME "\n");
- }
-#endif
-
- if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) {
- dev_info(&pdev->dev,
- "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n",
- pdev->vendor, pdev->device, pdev->revision);
- return -ENODEV;
- }
-
- if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 &&
- pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS &&
- pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) {
- pr_info("OQO Model 2 detected. Forcing PIO\n");
- use_io = 1;
- }
-
- dev = rtl8139_init_board (pdev);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
-
- assert (dev != NULL);
- tp = netdev_priv(dev);
- tp->dev = dev;
-
- ioaddr = tp->mmio_addr;
- assert (ioaddr != NULL);
-
- addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
- for (i = 0; i < 3; i++)
- ((__le16 *) (dev->dev_addr))[i] =
- cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len));
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-
- /* The Rtl8139-specific entries in the device structure. */
- dev->netdev_ops = &rtl8139_netdev_ops;
- dev->ethtool_ops = &rtl8139_ethtool_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
- netif_napi_add(dev, &tp->napi, rtl8139_poll, 64);
-
- /* note: the hardware is not capable of sg/csum/highdma, however
- * through the use of skb_copy_and_csum_dev we enable these
- * features
- */
- dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
- dev->vlan_features = dev->features;
-
- dev->irq = pdev->irq;
-
- /* tp zeroed and aligned in alloc_etherdev */
- tp = netdev_priv(dev);
-
- /* note: tp->chipset set in rtl8139_init_board */
- tp->drv_flags = board_info[ent->driver_data].hw_flags;
- tp->mmio_addr = ioaddr;
- tp->msg_enable =
- (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1));
- spin_lock_init (&tp->lock);
- spin_lock_init (&tp->rx_lock);
- INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
- tp->mii.dev = dev;
- tp->mii.mdio_read = mdio_read;
- tp->mii.mdio_write = mdio_write;
- tp->mii.phy_id_mask = 0x3f;
- tp->mii.reg_num_mask = 0x1f;
-
- /* dev is fully set up and ready to use now */
- pr_debug("about to register device named %s (%p)...\n",
- dev->name, dev);
- i = register_netdev (dev);
- if (i) goto err_out;
-
- pci_set_drvdata (pdev, dev);
-
- netdev_info(dev, "%s at 0x%lx, %pM, IRQ %d\n",
- board_info[ent->driver_data].name,
- dev->base_addr, dev->dev_addr, dev->irq);
-
- netdev_dbg(dev, "Identified 8139 chip type '%s'\n",
- rtl_chip_info[tp->chipset].name);
-
- /* Find the connected MII xcvrs.
- Doing this in open() would allow detecting external xcvrs later, but
- takes too much time. */
-#ifdef CONFIG_8139TOO_8129
- if (tp->drv_flags & HAS_MII_XCVR) {
- int phy, phy_idx = 0;
- for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
- int mii_status = mdio_read(dev, phy, 1);
- if (mii_status != 0xffff && mii_status != 0x0000) {
- u16 advertising = mdio_read(dev, phy, 4);
- tp->phys[phy_idx++] = phy;
- netdev_info(dev, "MII transceiver %d status 0x%04x advertising %04x\n",
- phy, mii_status, advertising);
- }
- }
- if (phy_idx == 0) {
- netdev_info(dev, "No MII transceivers found! Assuming SYM transceiver\n");
- tp->phys[0] = 32;
- }
- } else
-#endif
- tp->phys[0] = 32;
- tp->mii.phy_id = tp->phys[0];
-
- /* The lower four bits are the media type. */
- option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
- if (option > 0) {
- tp->mii.full_duplex = (option & 0x210) ? 1 : 0;
- tp->default_port = option & 0xFF;
- if (tp->default_port)
- tp->mii.force_media = 1;
- }
- if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
- tp->mii.full_duplex = full_duplex[board_idx];
- if (tp->mii.full_duplex) {
- netdev_info(dev, "Media type forced to Full Duplex\n");
- /* Changing the MII-advertised media because might prevent
- re-connection. */
- tp->mii.force_media = 1;
- }
- if (tp->default_port) {
- netdev_info(dev, " Forcing %dMbps %s-duplex operation\n",
- (option & 0x20 ? 100 : 10),
- (option & 0x10 ? "full" : "half"));
- mdio_write(dev, tp->phys[0], 0,
- ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
- ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
- }
-
- /* Put the chip into low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- return 0;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- pci_disable_device (pdev);
- return i;
-}
-
-
-static void __devexit rtl8139_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *tp = netdev_priv(dev);
-
- assert (dev != NULL);
-
- cancel_delayed_work_sync(&tp->thread);
-
- unregister_netdev (dev);
-
- __rtl8139_cleanup_dev (dev);
- pci_disable_device (pdev);
-}
-
-
-/* Serial EEPROM section. */
-
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
-#define EE_CS 0x08 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
-#define EE_WRITE_0 0x00
-#define EE_WRITE_1 0x02
-#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
-#define EE_ENB (0x80 | EE_CS)
-
-/* Delay between EEPROM clock transitions.
- No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
- */
-
-#define eeprom_delay() (void)RTL_R32(Cfg9346)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_WRITE_CMD (5)
-#define EE_READ_CMD (6)
-#define EE_ERASE_CMD (7)
-
-static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len)
-{
- int i;
- unsigned retval = 0;
- int read_cmd = location | (EE_READ_CMD << addr_len);
-
- RTL_W8 (Cfg9346, EE_ENB & ~EE_CS);
- RTL_W8 (Cfg9346, EE_ENB);
- eeprom_delay ();
-
- /* Shift the read command bits out. */
- for (i = 4 + addr_len; i >= 0; i--) {
- int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- RTL_W8 (Cfg9346, EE_ENB | dataval);
- eeprom_delay ();
- RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK);
- eeprom_delay ();
- }
- RTL_W8 (Cfg9346, EE_ENB);
- eeprom_delay ();
-
- for (i = 16; i > 0; i--) {
- RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK);
- eeprom_delay ();
- retval =
- (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 :
- 0);
- RTL_W8 (Cfg9346, EE_ENB);
- eeprom_delay ();
- }
-
- /* Terminate the EEPROM access. */
- RTL_W8 (Cfg9346, ~EE_CS);
- eeprom_delay ();
-
- return retval;
-}
-
-/* MII serial management: mostly bogus for now. */
-/* Read and write the MII management registers using software-generated
- serial MDIO protocol.
- The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
- met by back-to-back PCI I/O cycles, but we insert a delay to avoid
- "overclocking" issues. */
-#define MDIO_DIR 0x80
-#define MDIO_DATA_OUT 0x04
-#define MDIO_DATA_IN 0x02
-#define MDIO_CLK 0x01
-#define MDIO_WRITE0 (MDIO_DIR)
-#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
-
-#define mdio_delay() RTL_R8(Config4)
-
-
-static const char mii_2_8139_map[8] = {
- BasicModeCtrl,
- BasicModeStatus,
- 0,
- 0,
- NWayAdvert,
- NWayLPAR,
- NWayExpansion,
- 0
-};
-
-
-#ifdef CONFIG_8139TOO_8129
-/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync (void __iomem *ioaddr)
-{
- int i;
-
- for (i = 32; i >= 0; i--) {
- RTL_W8 (Config4, MDIO_WRITE1);
- mdio_delay ();
- RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK);
- mdio_delay ();
- }
-}
-#endif
-
-static int mdio_read (struct net_device *dev, int phy_id, int location)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- int retval = 0;
-#ifdef CONFIG_8139TOO_8129
- void __iomem *ioaddr = tp->mmio_addr;
- int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void __iomem *ioaddr = tp->mmio_addr;
- return location < 8 && mii_2_8139_map[location] ?
- RTL_R16 (mii_2_8139_map[location]) : 0;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (ioaddr);
- /* Shift the read command bits out. */
- for (i = 15; i >= 0; i--) {
- int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
-
- RTL_W8 (Config4, MDIO_DIR | dataval);
- mdio_delay ();
- RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK);
- mdio_delay ();
- }
-
- /* Read the two transition, 16 data, and wire-idle bits. */
- for (i = 19; i > 0; i--) {
- RTL_W8 (Config4, 0);
- mdio_delay ();
- retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0);
- RTL_W8 (Config4, MDIO_CLK);
- mdio_delay ();
- }
-#endif
-
- return (retval >> 1) & 0xffff;
-}
-
-
-static void mdio_write (struct net_device *dev, int phy_id, int location,
- int value)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
-#ifdef CONFIG_8139TOO_8129
- void __iomem *ioaddr = tp->mmio_addr;
- int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void __iomem *ioaddr = tp->mmio_addr;
- if (location == 0) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W16 (BasicModeCtrl, value);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- } else if (location < 8 && mii_2_8139_map[location])
- RTL_W16 (mii_2_8139_map[location], value);
- return;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (ioaddr);
-
- /* Shift the command bits out. */
- for (i = 31; i >= 0; i--) {
- int dataval =
- (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
- RTL_W8 (Config4, dataval);
- mdio_delay ();
- RTL_W8 (Config4, dataval | MDIO_CLK);
- mdio_delay ();
- }
- /* Clear out extra bits. */
- for (i = 2; i > 0; i--) {
- RTL_W8 (Config4, 0);
- mdio_delay ();
- RTL_W8 (Config4, MDIO_CLK);
- mdio_delay ();
- }
-#endif
-}
-
-
-static int rtl8139_open (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- int retval;
- void __iomem *ioaddr = tp->mmio_addr;
-
- retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
- if (retval)
- return retval;
-
- tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
- &tp->tx_bufs_dma, GFP_KERNEL);
- tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
- &tp->rx_ring_dma, GFP_KERNEL);
- if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
- free_irq(dev->irq, dev);
-
- if (tp->tx_bufs)
- dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- if (tp->rx_ring)
- dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
-
- return -ENOMEM;
-
- }
-
- napi_enable(&tp->napi);
-
- tp->mii.full_duplex = tp->mii.force_media;
- tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
-
- rtl8139_init_ring (dev);
- rtl8139_hw_start (dev);
- netif_start_queue (dev);
-
- netif_dbg(tp, ifup, dev,
- "%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n",
- __func__,
- (unsigned long long)pci_resource_start (tp->pci_dev, 1),
- dev->irq, RTL_R8 (MediaStatus),
- tp->mii.full_duplex ? "full" : "half");
-
- rtl8139_start_thread(tp);
-
- return 0;
-}
-
-
-static void rtl_check_media (struct net_device *dev, unsigned int init_media)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
-
- if (tp->phys[0] >= 0) {
- mii_check_media(&tp->mii, netif_msg_link(tp), init_media);
- }
-}
-
-/* Start the hardware at open or resume. */
-static void rtl8139_hw_start (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- u32 i;
- u8 tmp;
-
- /* Bring old chips out of low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'R');
-
- rtl8139_chip_reset (ioaddr);
-
- /* unlock Config[01234] and BMCR register writes */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Restore our idea of the MAC address. */
- RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
- RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4)));
-
- tp->cur_rx = 0;
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
- RTL_W32 (TxConfig, rtl8139_tx_config);
-
- rtl_check_media (dev, 1);
-
- if (tp->chipset >= CH_8139B) {
- /* Disable magic packet scanning, which is enabled
- * when PM is enabled in Config1. It can be reenabled
- * via ETHTOOL_SWOL if desired. */
- RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
- }
-
- netdev_dbg(dev, "init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Tx buffer DMA addresses */
- for (i = 0; i < NUM_TX_DESC; i++)
- RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
-
- RTL_W32 (RxMissed, 0);
-
- rtl8139_set_rx_mode (dev);
-
- /* no early-rx interrupts */
- RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
-
- /* make sure RxTx has started */
- tmp = RTL_R8 (ChipCmd);
- if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- /* Enable all known interrupts by setting the interrupt mask. */
- RTL_W16 (IntrMask, rtl8139_intr_mask);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void rtl8139_init_ring (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- int i;
-
- tp->cur_rx = 0;
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- for (i = 0; i < NUM_TX_DESC; i++)
- tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
-}
-
-
-/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */
-static int next_tick = 3 * HZ;
-
-#ifndef CONFIG_8139TOO_TUNE_TWISTER
-static inline void rtl8139_tune_twister (struct net_device *dev,
- struct rtl8139_private *tp) {}
-#else
-enum TwisterParamVals {
- PARA78_default = 0x78fa8388,
- PARA7c_default = 0xcb38de43, /* param[0][3] */
- PARA7c_xxx = 0xcb38de43,
-};
-
-static const unsigned long param[4][4] = {
- {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
-};
-
-static void rtl8139_tune_twister (struct net_device *dev,
- struct rtl8139_private *tp)
-{
- int linkcase;
- void __iomem *ioaddr = tp->mmio_addr;
-
- /* This is a complicated state machine to configure the "twister" for
- impedance/echos based on the cable length.
- All of this is magic and undocumented.
- */
- switch (tp->twistie) {
- case 1:
- if (RTL_R16 (CSCR) & CSCR_LinkOKBit) {
- /* We have link beat, let us tune the twister. */
- RTL_W16 (CSCR, CSCR_LinkDownOffCmd);
- tp->twistie = 2; /* Change to state 2. */
- next_tick = HZ / 10;
- } else {
- /* Just put in some reasonable defaults for when beat returns. */
- RTL_W16 (CSCR, CSCR_LinkDownCmd);
- RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */
- RTL_W32 (PARA78, PARA78_default);
- RTL_W32 (PARA7c, PARA7c_default);
- tp->twistie = 0; /* Bail from future actions. */
- }
- break;
- case 2:
- /* Read how long it took to hear the echo. */
- linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits;
- if (linkcase == 0x7000)
- tp->twist_row = 3;
- else if (linkcase == 0x3000)
- tp->twist_row = 2;
- else if (linkcase == 0x1000)
- tp->twist_row = 1;
- else
- tp->twist_row = 0;
- tp->twist_col = 0;
- tp->twistie = 3; /* Change to state 2. */
- next_tick = HZ / 10;
- break;
- case 3:
- /* Put out four tuning parameters, one per 100msec. */
- if (tp->twist_col == 0)
- RTL_W16 (FIFOTMS, 0);
- RTL_W32 (PARA7c, param[(int) tp->twist_row]
- [(int) tp->twist_col]);
- next_tick = HZ / 10;
- if (++tp->twist_col >= 4) {
- /* For short cables we are done.
- For long cables (row == 3) check for mistune. */
- tp->twistie =
- (tp->twist_row == 3) ? 4 : 0;
- }
- break;
- case 4:
- /* Special case for long cables: check for mistune. */
- if ((RTL_R16 (CSCR) &
- CSCR_LinkStatusBits) == 0x7000) {
- tp->twistie = 0;
- break;
- } else {
- RTL_W32 (PARA7c, 0xfb38de03);
- tp->twistie = 5;
- next_tick = HZ / 10;
- }
- break;
- case 5:
- /* Retune for shorter cable (column 2). */
- RTL_W32 (FIFOTMS, 0x20);
- RTL_W32 (PARA78, PARA78_default);
- RTL_W32 (PARA7c, PARA7c_default);
- RTL_W32 (FIFOTMS, 0x00);
- tp->twist_row = 2;
- tp->twist_col = 0;
- tp->twistie = 3;
- next_tick = HZ / 10;
- break;
-
- default:
- /* do nothing */
- break;
- }
-}
-#endif /* CONFIG_8139TOO_TUNE_TWISTER */
-
-static inline void rtl8139_thread_iter (struct net_device *dev,
- struct rtl8139_private *tp,
- void __iomem *ioaddr)
-{
- int mii_lpa;
-
- mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
-
- if (!tp->mii.force_media && mii_lpa != 0xffff) {
- int duplex = ((mii_lpa & LPA_100FULL) ||
- (mii_lpa & 0x01C0) == 0x0040);
- if (tp->mii.full_duplex != duplex) {
- tp->mii.full_duplex = duplex;
-
- if (mii_lpa) {
- netdev_info(dev, "Setting %s-duplex based on MII #%d link partner ability of %04x\n",
- tp->mii.full_duplex ? "full" : "half",
- tp->phys[0], mii_lpa);
- } else {
- netdev_info(dev, "media is unconnected, link down, or incompatible connection\n");
- }
-#if 0
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-#endif
- }
- }
-
- next_tick = HZ * 60;
-
- rtl8139_tune_twister (dev, tp);
-
- netdev_dbg(dev, "Media selection tick, Link partner %04x\n",
- RTL_R16(NWayLPAR));
- netdev_dbg(dev, "Other registers are IntMask %04x IntStatus %04x\n",
- RTL_R16(IntrMask), RTL_R16(IntrStatus));
- netdev_dbg(dev, "Chip config %02x %02x\n",
- RTL_R8(Config0), RTL_R8(Config1));
-}
-
-static void rtl8139_thread (struct work_struct *work)
-{
- struct rtl8139_private *tp =
- container_of(work, struct rtl8139_private, thread.work);
- struct net_device *dev = tp->mii.dev;
- unsigned long thr_delay = next_tick;
-
- rtnl_lock();
-
- if (!netif_running(dev))
- goto out_unlock;
-
- if (tp->watchdog_fired) {
- tp->watchdog_fired = 0;
- rtl8139_tx_timeout_task(work);
- } else
- rtl8139_thread_iter(dev, tp, tp->mmio_addr);
-
- if (tp->have_thread)
- schedule_delayed_work(&tp->thread, thr_delay);
-out_unlock:
- rtnl_unlock ();
-}
-
-static void rtl8139_start_thread(struct rtl8139_private *tp)
-{
- tp->twistie = 0;
- if (tp->chipset == CH_8139_K)
- tp->twistie = 1;
- else if (tp->drv_flags & HAS_LNK_CHNG)
- return;
-
- tp->have_thread = 1;
- tp->watchdog_fired = 0;
-
- schedule_delayed_work(&tp->thread, next_tick);
-}
-
-static inline void rtl8139_tx_clear (struct rtl8139_private *tp)
-{
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- /* XXX account for unsent Tx packets in tp->stats.tx_dropped */
-}
-
-static void rtl8139_tx_timeout_task (struct work_struct *work)
-{
- struct rtl8139_private *tp =
- container_of(work, struct rtl8139_private, thread.work);
- struct net_device *dev = tp->mii.dev;
- void __iomem *ioaddr = tp->mmio_addr;
- int i;
- u8 tmp8;
-
- netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n",
- RTL_R8(ChipCmd), RTL_R16(IntrStatus),
- RTL_R16(IntrMask), RTL_R8(MediaStatus));
- /* Emit info to figure out what went wrong. */
- netdev_dbg(dev, "Tx queue start entry %ld dirty entry %ld\n",
- tp->cur_tx, tp->dirty_tx);
- for (i = 0; i < NUM_TX_DESC; i++)
- netdev_dbg(dev, "Tx descriptor %d is %08x%s\n",
- i, RTL_R32(TxStatus0 + (i * 4)),
- i == tp->dirty_tx % NUM_TX_DESC ?
- " (queue head)" : "");
-
- tp->xstats.tx_timeouts++;
-
- /* disable Tx ASAP, if not already */
- tmp8 = RTL_R8 (ChipCmd);
- if (tmp8 & CmdTxEnb)
- RTL_W8 (ChipCmd, CmdRxEnb);
-
- spin_lock_bh(&tp->rx_lock);
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0x0000);
-
- /* Stop a shared interrupt from scavenging while we are. */
- spin_lock_irq(&tp->lock);
- rtl8139_tx_clear (tp);
- spin_unlock_irq(&tp->lock);
-
- /* ...and finally, reset everything */
- if (netif_running(dev)) {
- rtl8139_hw_start (dev);
- netif_wake_queue (dev);
- }
- spin_unlock_bh(&tp->rx_lock);
-}
-
-static void rtl8139_tx_timeout (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
-
- tp->watchdog_fired = 1;
- if (!tp->have_thread) {
- INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
- schedule_delayed_work(&tp->thread, next_tick);
- }
-}
-
-static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
- struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned int entry;
- unsigned int len = skb->len;
- unsigned long flags;
-
- /* Calculate the next Tx descriptor entry. */
- entry = tp->cur_tx % NUM_TX_DESC;
-
- /* Note: the chip doesn't have auto-pad! */
- if (likely(len < TX_BUF_SIZE)) {
- if (len < ETH_ZLEN)
- memset(tp->tx_buf[entry], 0, ETH_ZLEN);
- skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
- dev_kfree_skb(skb);
- } else {
- dev_kfree_skb(skb);
- dev->stats.tx_dropped++;
- return NETDEV_TX_OK;
- }
-
- spin_lock_irqsave(&tp->lock, flags);
- /*
- * Writing to TxStatus triggers a DMA transfer of the data
- * copied to tp->tx_buf[entry] above. Use a memory barrier
- * to make sure that the device sees the updated data.
- */
- wmb();
- RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
- tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
-
- tp->cur_tx++;
-
- if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
- netif_stop_queue (dev);
- spin_unlock_irqrestore(&tp->lock, flags);
-
- netif_dbg(tp, tx_queued, dev, "Queued Tx packet size %u to slot %d\n",
- len, entry);
-
- return NETDEV_TX_OK;
-}
-
-
-static void rtl8139_tx_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void __iomem *ioaddr)
-{
- unsigned long dirty_tx, tx_left;
-
- assert (dev != NULL);
- assert (ioaddr != NULL);
-
- dirty_tx = tp->dirty_tx;
- tx_left = tp->cur_tx - dirty_tx;
- while (tx_left > 0) {
- int entry = dirty_tx % NUM_TX_DESC;
- int txstatus;
-
- txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
-
- if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
- break; /* It still hasn't been Txed */
-
- /* Note: TxCarrierLost is always asserted at 100mbps. */
- if (txstatus & (TxOutOfWindow | TxAborted)) {
- /* There was an major error, log it. */
- netif_dbg(tp, tx_err, dev, "Transmit error, Tx status %08x\n",
- txstatus);
- dev->stats.tx_errors++;
- if (txstatus & TxAborted) {
- dev->stats.tx_aborted_errors++;
- RTL_W32 (TxConfig, TxClearAbt);
- RTL_W16 (IntrStatus, TxErr);
- wmb();
- }
- if (txstatus & TxCarrierLost)
- dev->stats.tx_carrier_errors++;
- if (txstatus & TxOutOfWindow)
- dev->stats.tx_window_errors++;
- } else {
- if (txstatus & TxUnderrun) {
- /* Add 64 to the Tx FIFO threshold. */
- if (tp->tx_flag < 0x00300000)
- tp->tx_flag += 0x00020000;
- dev->stats.tx_fifo_errors++;
- }
- dev->stats.collisions += (txstatus >> 24) & 15;
- dev->stats.tx_bytes += txstatus & 0x7ff;
- dev->stats.tx_packets++;
- }
-
- dirty_tx++;
- tx_left--;
- }
-
-#ifndef RTL8139_NDEBUG
- if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
- netdev_err(dev, "Out-of-sync dirty pointer, %ld vs. %ld\n",
- dirty_tx, tp->cur_tx);
- dirty_tx += NUM_TX_DESC;
- }
-#endif /* RTL8139_NDEBUG */
-
- /* only wake the queue if we did work, and the queue is stopped */
- if (tp->dirty_tx != dirty_tx) {
- tp->dirty_tx = dirty_tx;
- mb();
- netif_wake_queue (dev);
- }
-}
-
-
-/* TODO: clean this up! Rx reset need not be this intensive */
-static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
- struct rtl8139_private *tp, void __iomem *ioaddr)
-{
- u8 tmp8;
-#ifdef CONFIG_8139_OLD_RX_RESET
- int tmp_work;
-#endif
-
- netif_dbg(tp, rx_err, dev, "Ethernet frame had errors, status %08x\n",
- rx_status);
- dev->stats.rx_errors++;
- if (!(rx_status & RxStatusOK)) {
- if (rx_status & RxTooLong) {
- netdev_dbg(dev, "Oversized Ethernet frame, status %04x!\n",
- rx_status);
- /* A.C.: The chip hangs here. */
- }
- if (rx_status & (RxBadSymbol | RxBadAlign))
- dev->stats.rx_frame_errors++;
- if (rx_status & (RxRunt | RxTooLong))
- dev->stats.rx_length_errors++;
- if (rx_status & RxCRCErr)
- dev->stats.rx_crc_errors++;
- } else {
- tp->xstats.rx_lost_in_ring++;
- }
-
-#ifndef CONFIG_8139_OLD_RX_RESET
- tmp8 = RTL_R8 (ChipCmd);
- RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb);
- RTL_W8 (ChipCmd, tmp8);
- RTL_W32 (RxConfig, tp->rx_config);
- tp->cur_rx = 0;
-#else
- /* Reset the receiver, based on RealTek recommendation. (Bug?) */
-
- /* disable receive */
- RTL_W8_F (ChipCmd, CmdTxEnb);
- tmp_work = 200;
- while (--tmp_work > 0) {
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if (!(tmp8 & CmdRxEnb))
- break;
- }
- if (tmp_work <= 0)
- netdev_warn(dev, "rx stop wait too long\n");
- /* restart receive */
- tmp_work = 200;
- while (--tmp_work > 0) {
- RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
- break;
- }
- if (tmp_work <= 0)
- netdev_warn(dev, "tx/rx enable wait too long\n");
-
- /* and reinitialize all rx related registers */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
- tp->cur_rx = 0;
-
- netdev_dbg(dev, "init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* A.C.: Reset the multicast list. */
- __set_rx_mode (dev);
-#endif
-}
-
-#if RX_BUF_IDX == 3
-static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring,
- u32 offset, unsigned int size)
-{
- u32 left = RX_BUF_LEN - offset;
-
- if (size > left) {
- skb_copy_to_linear_data(skb, ring + offset, left);
- skb_copy_to_linear_data_offset(skb, left, ring, size - left);
- } else
- skb_copy_to_linear_data(skb, ring + offset, size);
-}
-#endif
-
-static void rtl8139_isr_ack(struct rtl8139_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- u16 status;
-
- status = RTL_R16 (IntrStatus) & RxAckBits;
-
- /* Clear out errors and receive interrupts */
- if (likely(status != 0)) {
- if (unlikely(status & (RxFIFOOver | RxOverflow))) {
- tp->dev->stats.rx_errors++;
- if (status & RxFIFOOver)
- tp->dev->stats.rx_fifo_errors++;
- }
- RTL_W16_F (IntrStatus, RxAckBits);
- }
-}
-
-static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
- int budget)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- int received = 0;
- unsigned char *rx_ring = tp->rx_ring;
- unsigned int cur_rx = tp->cur_rx;
- unsigned int rx_size = 0;
-
- netdev_dbg(dev, "In %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
- __func__, (u16)cur_rx,
- RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
-
- while (netif_running(dev) && received < budget &&
- (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
- u32 ring_offset = cur_rx % RX_BUF_LEN;
- u32 rx_status;
- unsigned int pkt_size;
- struct sk_buff *skb;
-
- rmb();
-
- /* read size+status of next frame from DMA ring buffer */
- rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset));
- rx_size = rx_status >> 16;
- pkt_size = rx_size - 4;
-
- netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",
- __func__, rx_status, rx_size, cur_rx);
-#if RTL8139_DEBUG > 2
- print_hex_dump(KERN_DEBUG, "Frame contents: ",
- DUMP_PREFIX_OFFSET, 16, 1,
- &rx_ring[ring_offset], 70, true);
-#endif
-
- /* Packet copy from FIFO still in progress.
- * Theoretically, this should never happen
- * since EarlyRx is disabled.
- */
- if (unlikely(rx_size == 0xfff0)) {
- if (!tp->fifo_copy_timeout)
- tp->fifo_copy_timeout = jiffies + 2;
- else if (time_after(jiffies, tp->fifo_copy_timeout)) {
- netdev_dbg(dev, "hung FIFO. Reset\n");
- rx_size = 0;
- goto no_early_rx;
- }
- netif_dbg(tp, intr, dev, "fifo copy in progress\n");
- tp->xstats.early_rx++;
- break;
- }
-
-no_early_rx:
- tp->fifo_copy_timeout = 0;
-
- /* If Rx err or invalid rx_size/rx_status received
- * (which happens if we get lost in the ring),
- * Rx process gets reset, so we abort any further
- * Rx processing.
- */
- if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
- (rx_size < 8) ||
- (!(rx_status & RxStatusOK)))) {
- rtl8139_rx_err (rx_status, dev, tp, ioaddr);
- received = -1;
- goto out;
- }
-
- /* Malloc up new buffer, compatible with net-2e. */
- /* Omit the four octet CRC from the length. */
-
- skb = netdev_alloc_skb_ip_align(dev, pkt_size);
- if (likely(skb)) {
-#if RX_BUF_IDX == 3
- wrap_copy(skb, rx_ring, ring_offset+4, pkt_size);
-#else
- skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size);
-#endif
- skb_put (skb, pkt_size);
-
- skb->protocol = eth_type_trans (skb, dev);
-
- dev->stats.rx_bytes += pkt_size;
- dev->stats.rx_packets++;
-
- netif_receive_skb (skb);
- } else {
- if (net_ratelimit())
- netdev_warn(dev, "Memory squeeze, dropping packet\n");
- dev->stats.rx_dropped++;
- }
- received++;
-
- cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
- RTL_W16 (RxBufPtr, (u16) (cur_rx - 16));
-
- rtl8139_isr_ack(tp);
- }
-
- if (unlikely(!received || rx_size == 0xfff0))
- rtl8139_isr_ack(tp);
-
- netdev_dbg(dev, "Done %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
- __func__, cur_rx,
- RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
-
- tp->cur_rx = cur_rx;
-
- /*
- * The receive buffer should be mostly empty.
- * Tell NAPI to reenable the Rx irq.
- */
- if (tp->fifo_copy_timeout)
- received = budget;
-
-out:
- return received;
-}
-
-
-static void rtl8139_weird_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void __iomem *ioaddr,
- int status, int link_changed)
-{
- netdev_dbg(dev, "Abnormal interrupt, status %08x\n", status);
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- /* Update the error count. */
- dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- if ((status & RxUnderrun) && link_changed &&
- (tp->drv_flags & HAS_LNK_CHNG)) {
- rtl_check_media(dev, 0);
- status &= ~RxUnderrun;
- }
-
- if (status & (RxUnderrun | RxErr))
- dev->stats.rx_errors++;
-
- if (status & PCSTimeout)
- dev->stats.rx_length_errors++;
- if (status & RxUnderrun)
- dev->stats.rx_fifo_errors++;
- if (status & PCIErr) {
- u16 pci_cmd_status;
- pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
- pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
-
- netdev_err(dev, "PCI Bus error %04x\n", pci_cmd_status);
- }
-}
-
-static int rtl8139_poll(struct napi_struct *napi, int budget)
-{
- struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi);
- struct net_device *dev = tp->dev;
- void __iomem *ioaddr = tp->mmio_addr;
- int work_done;
-
- spin_lock(&tp->rx_lock);
- work_done = 0;
- if (likely(RTL_R16(IntrStatus) & RxAckBits))
- work_done += rtl8139_rx(dev, tp, budget);
-
- if (work_done < budget) {
- unsigned long flags;
- /*
- * Order is important since data can get interrupted
- * again when we think we are done.
- */
- spin_lock_irqsave(&tp->lock, flags);
- __napi_complete(napi);
- RTL_W16_F(IntrMask, rtl8139_intr_mask);
- spin_unlock_irqrestore(&tp->lock, flags);
- }
- spin_unlock(&tp->rx_lock);
-
- return work_done;
-}
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
-{
- struct net_device *dev = (struct net_device *) dev_instance;
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- u16 status, ackstat;
- int link_changed = 0; /* avoid bogus "uninit" warning */
- int handled = 0;
-
- spin_lock (&tp->lock);
- status = RTL_R16 (IntrStatus);
-
- /* shared irq? */
- if (unlikely((status & rtl8139_intr_mask) == 0))
- goto out;
-
- handled = 1;
-
- /* h/w no longer present (hotplug?) or major error, bail */
- if (unlikely(status == 0xFFFF))
- goto out;
-
- /* close possible race's with dev_close */
- if (unlikely(!netif_running(dev))) {
- RTL_W16 (IntrMask, 0);
- goto out;
- }
-
- /* Acknowledge all of the current interrupt sources ASAP, but
- an first get an additional status bit from CSCR. */
- if (unlikely(status & RxUnderrun))
- link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
-
- ackstat = status & ~(RxAckBits | TxErr);
- if (ackstat)
- RTL_W16 (IntrStatus, ackstat);
-
- /* Receive packets are processed by poll routine.
- If not running start it now. */
- if (status & RxAckBits){
- if (napi_schedule_prep(&tp->napi)) {
- RTL_W16_F (IntrMask, rtl8139_norx_intr_mask);
- __napi_schedule(&tp->napi);
- }
- }
-
- /* Check uncommon events with one test. */
- if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr)))
- rtl8139_weird_interrupt (dev, tp, ioaddr,
- status, link_changed);
-
- if (status & (TxOK | TxErr)) {
- rtl8139_tx_interrupt (dev, tp, ioaddr);
- if (status & TxErr)
- RTL_W16 (IntrStatus, TxErr);
- }
- out:
- spin_unlock (&tp->lock);
-
- netdev_dbg(dev, "exiting interrupt, intr_status=%#4.4x\n",
- RTL_R16(IntrStatus));
- return IRQ_RETVAL(handled);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling receive - used by netconsole and other diagnostic tools
- * to allow network i/o with interrupts disabled.
- */
-static void rtl8139_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- rtl8139_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static int rtl8139_set_mac_address(struct net_device *dev, void *p)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
- spin_lock_irq(&tp->lock);
-
- RTL_W8_F(Cfg9346, Cfg9346_Unlock);
- RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
- RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
- RTL_W8_F(Cfg9346, Cfg9346_Lock);
-
- spin_unlock_irq(&tp->lock);
-
- return 0;
-}
-
-static int rtl8139_close (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- netif_stop_queue(dev);
- napi_disable(&tp->napi);
-
- netif_dbg(tp, ifdown, dev, "Shutting down ethercard, status was 0x%04x\n",
- RTL_R16(IntrStatus));
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Stop the chip's Tx and Rx DMA processes. */
- RTL_W8 (ChipCmd, 0);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0);
-
- /* Update the error counts. */
- dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
-
- free_irq (dev->irq, dev);
-
- rtl8139_tx_clear (tp);
-
- dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
- dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- tp->rx_ring = NULL;
- tp->tx_bufs = NULL;
-
- /* Green! Put the chip in low-power mode. */
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
-
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- return 0;
-}
-
-
-/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
- kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
- other threads or interrupts aren't messing with the 8139. */
-static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
-
- spin_lock_irq(&tp->lock);
- if (rtl_chip_info[tp->chipset].flags & HasLWake) {
- u8 cfg3 = RTL_R8 (Config3);
- u8 cfg5 = RTL_R8 (Config5);
-
- wol->supported = WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
-
- wol->wolopts = 0;
- if (cfg3 & Cfg3_LinkUp)
- wol->wolopts |= WAKE_PHY;
- if (cfg3 & Cfg3_Magic)
- wol->wolopts |= WAKE_MAGIC;
- /* (KON)FIXME: See how netdev_set_wol() handles the
- following constants. */
- if (cfg5 & Cfg5_UWF)
- wol->wolopts |= WAKE_UCAST;
- if (cfg5 & Cfg5_MWF)
- wol->wolopts |= WAKE_MCAST;
- if (cfg5 & Cfg5_BWF)
- wol->wolopts |= WAKE_BCAST;
- }
- spin_unlock_irq(&tp->lock);
-}
-
-
-/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
- that wol points to kernel memory and other threads or interrupts
- aren't messing with the 8139. */
-static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- u32 support;
- u8 cfg3, cfg5;
-
- support = ((rtl_chip_info[tp->chipset].flags & HasLWake)
- ? (WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
- : 0);
- if (wol->wolopts & ~support)
- return -EINVAL;
-
- spin_lock_irq(&tp->lock);
- cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
- if (wol->wolopts & WAKE_PHY)
- cfg3 |= Cfg3_LinkUp;
- if (wol->wolopts & WAKE_MAGIC)
- cfg3 |= Cfg3_Magic;
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config3, cfg3);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
- /* (KON)FIXME: These are untested. We may have to set the
- CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
- documentation. */
- if (wol->wolopts & WAKE_UCAST)
- cfg5 |= Cfg5_UWF;
- if (wol->wolopts & WAKE_MCAST)
- cfg5 |= Cfg5_MWF;
- if (wol->wolopts & WAKE_BCAST)
- cfg5 |= Cfg5_BWF;
- RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
- spin_unlock_irq(&tp->lock);
-
- return 0;
-}
-
-static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, pci_name(tp->pci_dev));
- info->regdump_len = tp->regs_len;
-}
-
-static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- spin_lock_irq(&tp->lock);
- mii_ethtool_gset(&tp->mii, cmd);
- spin_unlock_irq(&tp->lock);
- return 0;
-}
-
-static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- int rc;
- spin_lock_irq(&tp->lock);
- rc = mii_ethtool_sset(&tp->mii, cmd);
- spin_unlock_irq(&tp->lock);
- return rc;
-}
-
-static int rtl8139_nway_reset(struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- return mii_nway_restart(&tp->mii);
-}
-
-static u32 rtl8139_get_link(struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- return mii_link_ok(&tp->mii);
-}
-
-static u32 rtl8139_get_msglevel(struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- return tp->msg_enable;
-}
-
-static void rtl8139_set_msglevel(struct net_device *dev, u32 datum)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- tp->msg_enable = datum;
-}
-
-static int rtl8139_get_regs_len(struct net_device *dev)
-{
- struct rtl8139_private *tp;
- /* TODO: we are too slack to do reg dumping for pio, for now */
- if (use_io)
- return 0;
- tp = netdev_priv(dev);
- return tp->regs_len;
-}
-
-static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
-{
- struct rtl8139_private *tp;
-
- /* TODO: we are too slack to do reg dumping for pio, for now */
- if (use_io)
- return;
- tp = netdev_priv(dev);
-
- regs->version = RTL_REGS_VER;
-
- spin_lock_irq(&tp->lock);
- memcpy_fromio(regbuf, tp->mmio_addr, regs->len);
- spin_unlock_irq(&tp->lock);
-}
-
-static int rtl8139_get_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return RTL_NUM_STATS;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
-
- data[0] = tp->xstats.early_rx;
- data[1] = tp->xstats.tx_buf_mapped;
- data[2] = tp->xstats.tx_timeouts;
- data[3] = tp->xstats.rx_lost_in_ring;
-}
-
-static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data)
-{
- memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
-}
-
-static const struct ethtool_ops rtl8139_ethtool_ops = {
- .get_drvinfo = rtl8139_get_drvinfo,
- .get_settings = rtl8139_get_settings,
- .set_settings = rtl8139_set_settings,
- .get_regs_len = rtl8139_get_regs_len,
- .get_regs = rtl8139_get_regs,
- .nway_reset = rtl8139_nway_reset,
- .get_link = rtl8139_get_link,
- .get_msglevel = rtl8139_get_msglevel,
- .set_msglevel = rtl8139_set_msglevel,
- .get_wol = rtl8139_get_wol,
- .set_wol = rtl8139_set_wol,
- .get_strings = rtl8139_get_strings,
- .get_sset_count = rtl8139_get_sset_count,
- .get_ethtool_stats = rtl8139_get_ethtool_stats,
-};
-
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irq(&tp->lock);
- rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL);
- spin_unlock_irq(&tp->lock);
-
- return rc;
-}
-
-
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (netif_running(dev)) {
- spin_lock_irqsave (&tp->lock, flags);
- dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
- spin_unlock_irqrestore (&tp->lock, flags);
- }
-
- return &dev->stats;
-}
-
-/* Set or clear the multicast filter for this adaptor.
- This routine is not state sensitive and need not be SMP locked. */
-
-static void __set_rx_mode (struct net_device *dev)
-{
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- u32 mc_filter[2]; /* Multicast hash filter */
- int rx_mode;
- u32 tmp;
-
- netdev_dbg(dev, "rtl8139_set_rx_mode(%04x) done -- Rx config %08x\n",
- dev->flags, RTL_R32(RxConfig));
-
- /* Note: do not reorder, GCC is clever about common statements. */
- if (dev->flags & IFF_PROMISC) {
- rx_mode =
- AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
- AcceptAllPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else {
- struct netdev_hw_addr *ha;
- rx_mode = AcceptBroadcast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0;
- netdev_for_each_mc_addr(ha, dev) {
- int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- rx_mode |= AcceptMulticast;
- }
- }
-
- /* We can safely update without stopping the chip. */
- tmp = rtl8139_rx_config | rx_mode;
- if (tp->rx_config != tmp) {
- RTL_W32_F (RxConfig, tmp);
- tp->rx_config = tmp;
- }
- RTL_W32_F (MAR0 + 0, mc_filter[0]);
- RTL_W32_F (MAR0 + 4, mc_filter[1]);
-}
-
-static void rtl8139_set_rx_mode (struct net_device *dev)
-{
- unsigned long flags;
- struct rtl8139_private *tp = netdev_priv(dev);
-
- spin_lock_irqsave (&tp->lock, flags);
- __set_rx_mode(dev);
- spin_unlock_irqrestore (&tp->lock, flags);
-}
-
-#ifdef CONFIG_PM
-
-static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- pci_save_state (pdev);
-
- if (!netif_running (dev))
- return 0;
-
- netif_device_detach (dev);
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Disable interrupts, stop Tx and Rx. */
- RTL_W16 (IntrMask, 0);
- RTL_W8 (ChipCmd, 0);
-
- /* Update the error counts. */
- dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
-
- pci_set_power_state (pdev, PCI_D3hot);
-
- return 0;
-}
-
-
-static int rtl8139_resume (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
-
- pci_restore_state (pdev);
- if (!netif_running (dev))
- return 0;
- pci_set_power_state (pdev, PCI_D0);
- rtl8139_init_ring (dev);
- rtl8139_hw_start (dev);
- netif_device_attach (dev);
- return 0;
-}
-
-#endif /* CONFIG_PM */
-
-
-static struct pci_driver rtl8139_pci_driver = {
- .name = DRV_NAME,
- .id_table = rtl8139_pci_tbl,
- .probe = rtl8139_init_one,
- .remove = __devexit_p(rtl8139_remove_one),
-#ifdef CONFIG_PM
- .suspend = rtl8139_suspend,
- .resume = rtl8139_resume,
-#endif /* CONFIG_PM */
-};
-
-
-static int __init rtl8139_init_module (void)
-{
- /* when we're a module, we always print a version message,
- * even if no 8139 board is found.
- */
-#ifdef MODULE
- pr_info(RTL8139_DRIVER_NAME "\n");
-#endif
-
- return pci_register_driver(&rtl8139_pci_driver);
-}
-
-
-static void __exit rtl8139_cleanup_module (void)
-{
- pci_unregister_driver (&rtl8139_pci_driver);
-}
-
-
-module_init(rtl8139_init_module);
-module_exit(rtl8139_cleanup_module);
Say Y here to support the Myson MTD-800 family of PCI-based Ethernet
cards. <http://www.myson.com.tw/>
-config 8139CP
- tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support (EXPERIMENTAL)"
- depends on NET_PCI && PCI && EXPERIMENTAL
- select CRC32
- select MII
- help
- This is a driver for the Fast Ethernet PCI network cards based on
- the RTL8139C+ chips. If you have one of those, say Y and read
- the Ethernet-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
-
- To compile this driver as a module, choose M here: the module
- will be called 8139cp. This is recommended.
-
-config 8139TOO
- tristate "RealTek RTL-8129/8130/8139 PCI Fast Ethernet Adapter support"
- depends on NET_PCI && PCI
- select CRC32
- select MII
- ---help---
- This is a driver for the Fast Ethernet PCI network cards based on
- the RTL 8129/8130/8139 chips. If you have one of those, say Y and
- read the Ethernet-HOWTO <http://www.tldp.org/docs.html#howto>.
-
- To compile this driver as a module, choose M here: the module
- will be called 8139too. This is recommended.
-
-config 8139TOO_PIO
- bool "Use PIO instead of MMIO"
- default y
- depends on 8139TOO
- help
- This instructs the driver to use programmed I/O ports (PIO) instead
- of PCI shared memory (MMIO). This can possibly solve some problems
- in case your mainboard has memory consistency issues. If unsure,
- say N.
-
-config 8139TOO_TUNE_TWISTER
- bool "Support for uncommon RTL-8139 rev. K (automatic channel equalization)"
- depends on 8139TOO
- help
- This implements a function which might come in handy in case you
- are using low quality on long cabling. It is required for RealTek
- RTL-8139 revision K boards, and totally unused otherwise. It tries
- to match the transceiver to the cable characteristics. This is
- experimental since hardly documented by the manufacturer.
- If unsure, say Y.
-
-config 8139TOO_8129
- bool "Support for older RTL-8129/8130 boards"
- depends on 8139TOO
- help
- This enables support for the older and uncommon RTL-8129 and
- RTL-8130 chips, which support MII via an external transceiver,
- instead of an internal one. Disabling this option will save some
- memory by making the code size smaller. If unsure, say Y.
-
-config 8139_OLD_RX_RESET
- bool "Use older RX-reset method"
- depends on 8139TOO
- help
- The 8139too driver was recently updated to contain a more rapid
- reset sequence, in the face of severe receive errors. This "new"
- RX-reset method should be adequate for all boards. But if you
- experience problems, you can enable this option to restore the
- old RX-reset behavior. If unsure, say N.
-
config R6040
tristate "RDC R6040 Fast Ethernet Adapter support"
depends on NET_PCI && PCI
If unsure, say Y.
-config SC92031
- tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
- depends on NET_PCI && PCI && EXPERIMENTAL
- select CRC32
- ---help---
- This is a driver for the Fast Ethernet PCI network cards based on
- the Silan SC92031 chip (sometimes also called Rsltek 8139D). If you
- have one of these, say Y here.
-
- To compile this driver as a module, choose M here: the module
- will be called sc92031. This is recommended.
-
config CPMAC
tristate "TI AR7 CPMAC Ethernet support (EXPERIMENTAL)"
depends on NET_ETHERNET && EXPERIMENTAL && AR7
the questions about this class of network devices. If you say Y, you
will be asked for your specific device in the following questions.
-config ATP
- tristate "AT-LAN-TEC/RealTek pocket adapter support"
- depends on NET_POCKET && PARPORT && X86
- select CRC32
- ---help---
- This is a network (Ethernet) device which attaches to your parallel
- port. Read <file:drivers/net/atp.c> as well as the Ethernet-HOWTO,
- available from <http://www.tldp.org/docs.html#howto>, if you
- want to use this. If you intend to use this driver, you should have
- said N to the "Parallel printer support", because the two drivers
- don't like each other.
-
- To compile this driver as a module, choose M here: the module
- will be called atp.
-
config DE600
tristate "D-Link DE600 pocket adapter support"
depends on NET_POCKET && PARPORT
To compile this driver as a module, choose M here: the module
will be called yellowfin. This is recommended.
-config R8169
- tristate "Realtek 8169 gigabit ethernet support"
- depends on PCI
- select FW_LOADER
- select CRC32
- select MII
- ---help---
- Say Y here if you have a Realtek 8169 PCI Gigabit Ethernet adapter.
-
- To compile this driver as a module, choose M here: the module
- will be called r8169. This is recommended.
-
config SIS190
tristate "SiS190/SiS191 gigabit ethernet support"
depends on PCI
obj-$(CONFIG_SGISEEQ) += sgiseeq.o
obj-$(CONFIG_SGI_O2MACE_ETH) += meth.o
obj-$(CONFIG_AT1700) += at1700.o
-obj-$(CONFIG_8139CP) += 8139cp.o
-obj-$(CONFIG_8139TOO) += 8139too.o
obj-$(CONFIG_CPMAC) += cpmac.o
obj-$(CONFIG_EWRK3) += ewrk3.o
-obj-$(CONFIG_ATP) += atp.o
-obj-$(CONFIG_SC92031) += sc92031.o
obj-$(CONFIG_ETH16I) += eth16i.o
obj-$(CONFIG_EQUALIZER) += eql.o
obj-$(CONFIG_VETH) += veth.o
obj-$(CONFIG_NET_NETX) += netx-eth.o
obj-$(CONFIG_DL2K) += dl2k.o
-obj-$(CONFIG_R8169) += r8169.o
obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o
obj-$(CONFIG_BFIN_MAC) += bfin_mac.o
obj-$(CONFIG_DM9000) += dm9000.o
+++ /dev/null
-/* atp.c: Attached (pocket) ethernet adapter driver for linux. */
-/*
- This is a driver for commonly OEM pocket (parallel port)
- ethernet adapters based on the Realtek RTL8002 and RTL8012 chips.
-
- Written 1993-2000 by Donald Becker.
-
- This software may be used and distributed according to the terms of
- the GNU General Public License (GPL), incorporated herein by reference.
- Drivers based on or derived from this code fall under the GPL and must
- retain the authorship, copyright and license notice. This file is not
- a complete program and may only be used when the entire operating
- system is licensed under the GPL.
-
- Copyright 1993 United States Government as represented by the Director,
- National Security Agency. Copyright 1994-2000 retained by the original
- author, Donald Becker. The timer-based reset code was supplied in 1995
- by Bill Carlson, wwc@super.org.
-
- The author may be reached as becker@scyld.com, or C/O
- Scyld Computing Corporation
- 410 Severn Ave., Suite 210
- Annapolis MD 21403
-
- Support information and updates available at
- http://www.scyld.com/network/atp.html
-
-
- Modular support/softnet added by Alan Cox.
- _bit abuse fixed up by Alan Cox
-
-*/
-
-static const char version[] =
-"atp.c:v1.09=ac 2002/10/01 Donald Becker <becker@scyld.com>\n";
-
-/* The user-configurable values.
- These may be modified when a driver module is loaded.*/
-
-static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
-#define net_debug debug
-
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 15;
-
-#define NUM_UNITS 2
-/* The standard set of ISA module parameters. */
-static int io[NUM_UNITS];
-static int irq[NUM_UNITS];
-static int xcvr[NUM_UNITS]; /* The data transfer mode. */
-
-/* Operational parameters that are set at compile time. */
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (400*HZ/1000)
-
-/*
- This file is a device driver for the RealTek (aka AT-Lan-Tec) pocket
- ethernet adapter. This is a common low-cost OEM pocket ethernet
- adapter, sold under many names.
-
- Sources:
- This driver was written from the packet driver assembly code provided by
- Vincent Bono of AT-Lan-Tec. Ever try to figure out how a complicated
- device works just from the assembly code? It ain't pretty. The following
- description is written based on guesses and writing lots of special-purpose
- code to test my theorized operation.
-
- In 1997 Realtek made available the documentation for the second generation
- RTL8012 chip, which has lead to several driver improvements.
- http://www.realtek.com.tw/
-
- Theory of Operation
-
- The RTL8002 adapter seems to be built around a custom spin of the SEEQ
- controller core. It probably has a 16K or 64K internal packet buffer, of
- which the first 4K is devoted to transmit and the rest to receive.
- The controller maintains the queue of received packet and the packet buffer
- access pointer internally, with only 'reset to beginning' and 'skip to next
- packet' commands visible. The transmit packet queue holds two (or more?)
- packets: both 'retransmit this packet' (due to collision) and 'transmit next
- packet' commands must be started by hand.
-
- The station address is stored in a standard bit-serial EEPROM which must be
- read (ughh) by the device driver. (Provisions have been made for
- substituting a 74S288 PROM, but I haven't gotten reports of any models
- using it.) Unlike built-in devices, a pocket adapter can temporarily lose
- power without indication to the device driver. The major effect is that
- the station address, receive filter (promiscuous, etc.) and transceiver
- must be reset.
-
- The controller itself has 16 registers, some of which use only the lower
- bits. The registers are read and written 4 bits at a time. The four bit
- register address is presented on the data lines along with a few additional
- timing and control bits. The data is then read from status port or written
- to the data port.
-
- Correction: the controller has two banks of 16 registers. The second
- bank contains only the multicast filter table (now used) and the EEPROM
- access registers.
-
- Since the bulk data transfer of the actual packets through the slow
- parallel port dominates the driver's running time, four distinct data
- (non-register) transfer modes are provided by the adapter, two in each
- direction. In the first mode timing for the nibble transfers is
- provided through the data port. In the second mode the same timing is
- provided through the control port. In either case the data is read from
- the status port and written to the data port, just as it is accessing
- registers.
-
- In addition to the basic data transfer methods, several more are modes are
- created by adding some delay by doing multiple reads of the data to allow
- it to stabilize. This delay seems to be needed on most machines.
-
- The data transfer mode is stored in the 'dev->if_port' field. Its default
- value is '4'. It may be overridden at boot-time using the third parameter
- to the "ether=..." initialization.
-
- The header file <atp.h> provides inline functions that encapsulate the
- register and data access methods. These functions are hand-tuned to
- generate reasonable object code. This header file also documents my
- interpretations of the device registers.
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/crc32.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#include "atp.h"
-
-MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
-MODULE_DESCRIPTION("RealTek RTL8002/8012 parallel port Ethernet driver");
-MODULE_LICENSE("GPL");
-
-module_param(max_interrupt_work, int, 0);
-module_param(debug, int, 0);
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(xcvr, int, NULL, 0);
-MODULE_PARM_DESC(max_interrupt_work, "ATP maximum events handled per interrupt");
-MODULE_PARM_DESC(debug, "ATP debug level (0-7)");
-MODULE_PARM_DESC(io, "ATP I/O base address(es)");
-MODULE_PARM_DESC(irq, "ATP IRQ number(s)");
-MODULE_PARM_DESC(xcvr, "ATP transceiver(s) (0=internal, 1=external)");
-
-/* The number of low I/O ports used by the ethercard. */
-#define ETHERCARD_TOTAL_SIZE 3
-
-/* Sequence to switch an 8012 from printer mux to ethernet mode. */
-static char mux_8012[] = { 0xff, 0xf7, 0xff, 0xfb, 0xf3, 0xfb, 0xff, 0xf7,};
-
-struct net_local {
- spinlock_t lock;
- struct net_device *next_module;
- struct timer_list timer; /* Media selection timer. */
- long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
- int saved_tx_size;
- unsigned int tx_unit_busy:1;
- unsigned char re_tx, /* Number of packet retransmissions. */
- addr_mode, /* Current Rx filter e.g. promiscuous, etc. */
- pac_cnt_in_tx_buf,
- chip_type;
-};
-
-/* This code, written by wwc@super.org, resets the adapter every
- TIMED_CHECKER ticks. This recovers from an unknown error which
- hangs the device. */
-#define TIMED_CHECKER (HZ/4)
-#ifdef TIMED_CHECKER
-#include <linux/timer.h>
-static void atp_timed_checker(unsigned long ignored);
-#endif
-
-/* Index to functions, as function prototypes. */
-
-static int atp_probe1(long ioaddr);
-static void get_node_ID(struct net_device *dev);
-static unsigned short eeprom_op(long ioaddr, unsigned int cmd);
-static int net_open(struct net_device *dev);
-static void hardware_init(struct net_device *dev);
-static void write_packet(long ioaddr, int length, unsigned char *packet, int pad, int mode);
-static void trigger_send(long ioaddr, int length);
-static netdev_tx_t atp_send_packet(struct sk_buff *skb,
- struct net_device *dev);
-static irqreturn_t atp_interrupt(int irq, void *dev_id);
-static void net_rx(struct net_device *dev);
-static void read_block(long ioaddr, int length, unsigned char *buffer, int data_mode);
-static int net_close(struct net_device *dev);
-static void set_rx_mode(struct net_device *dev);
-static void tx_timeout(struct net_device *dev);
-
-
-/* A list of all installed ATP devices, for removing the driver module. */
-static struct net_device *root_atp_dev;
-
-/* Check for a network adapter of this type, and return '0' iff one exists.
- If dev->base_addr == 0, probe all likely locations.
- If dev->base_addr == 1, always return failure.
- If dev->base_addr == 2, allocate space for the device and return success
- (detachable devices only).
-
- FIXME: we should use the parport layer for this
- */
-static int __init atp_init(void)
-{
- int *port, ports[] = {0x378, 0x278, 0x3bc, 0};
- int base_addr = io[0];
-
- if (base_addr > 0x1ff) /* Check a single specified location. */
- return atp_probe1(base_addr);
- else if (base_addr == 1) /* Don't probe at all. */
- return -ENXIO;
-
- for (port = ports; *port; port++) {
- long ioaddr = *port;
- outb(0x57, ioaddr + PAR_DATA);
- if (inb(ioaddr + PAR_DATA) != 0x57)
- continue;
- if (atp_probe1(ioaddr) == 0)
- return 0;
- }
-
- return -ENODEV;
-}
-
-static const struct net_device_ops atp_netdev_ops = {
- .ndo_open = net_open,
- .ndo_stop = net_close,
- .ndo_start_xmit = atp_send_packet,
- .ndo_set_multicast_list = set_rx_mode,
- .ndo_tx_timeout = tx_timeout,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int __init atp_probe1(long ioaddr)
-{
- struct net_device *dev = NULL;
- struct net_local *lp;
- int saved_ctrl_reg, status, i;
- int res;
-
- outb(0xff, ioaddr + PAR_DATA);
- /* Save the original value of the Control register, in case we guessed
- wrong. */
- saved_ctrl_reg = inb(ioaddr + PAR_CONTROL);
- if (net_debug > 3)
- printk("atp: Control register was %#2.2x.\n", saved_ctrl_reg);
- /* IRQEN=0, SLCTB=high INITB=high, AUTOFDB=high, STBB=high. */
- outb(0x04, ioaddr + PAR_CONTROL);
-#ifndef final_version
- if (net_debug > 3) {
- /* Turn off the printer multiplexer on the 8012. */
- for (i = 0; i < 8; i++)
- outb(mux_8012[i], ioaddr + PAR_DATA);
- write_reg(ioaddr, MODSEL, 0x00);
- printk("atp: Registers are ");
- for (i = 0; i < 32; i++)
- printk(" %2.2x", read_nibble(ioaddr, i));
- printk(".\n");
- }
-#endif
- /* Turn off the printer multiplexer on the 8012. */
- for (i = 0; i < 8; i++)
- outb(mux_8012[i], ioaddr + PAR_DATA);
- write_reg_high(ioaddr, CMR1, CMR1h_RESET);
- /* udelay() here? */
- status = read_nibble(ioaddr, CMR1);
-
- if (net_debug > 3) {
- printk(KERN_DEBUG "atp: Status nibble was %#2.2x..", status);
- for (i = 0; i < 32; i++)
- printk(" %2.2x", read_nibble(ioaddr, i));
- printk("\n");
- }
-
- if ((status & 0x78) != 0x08) {
- /* The pocket adapter probe failed, restore the control register. */
- outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
- return -ENODEV;
- }
- status = read_nibble(ioaddr, CMR2_h);
- if ((status & 0x78) != 0x10) {
- outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
- return -ENODEV;
- }
-
- dev = alloc_etherdev(sizeof(struct net_local));
- if (!dev)
- return -ENOMEM;
-
- /* Find the IRQ used by triggering an interrupt. */
- write_reg_byte(ioaddr, CMR2, 0x01); /* No accept mode, IRQ out. */
- write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE); /* Enable Tx and Rx. */
-
- /* Omit autoIRQ routine for now. Use "table lookup" instead. Uhgggh. */
- if (irq[0])
- dev->irq = irq[0];
- else if (ioaddr == 0x378)
- dev->irq = 7;
- else
- dev->irq = 5;
- write_reg_high(ioaddr, CMR1, CMR1h_TxRxOFF); /* Disable Tx and Rx units. */
- write_reg(ioaddr, CMR2, CMR2_NULL);
-
- dev->base_addr = ioaddr;
-
- /* Read the station address PROM. */
- get_node_ID(dev);
-
-#ifndef MODULE
- if (net_debug)
- printk(KERN_INFO "%s", version);
-#endif
-
- printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, "
- "SAPROM %pM.\n",
- dev->name, dev->base_addr, dev->irq, dev->dev_addr);
-
- /* Reset the ethernet hardware and activate the printer pass-through. */
- write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
-
- lp = netdev_priv(dev);
- lp->chip_type = RTL8002;
- lp->addr_mode = CMR2h_Normal;
- spin_lock_init(&lp->lock);
-
- /* For the ATP adapter the "if_port" is really the data transfer mode. */
- if (xcvr[0])
- dev->if_port = xcvr[0];
- else
- dev->if_port = (dev->mem_start & 0xf) ? (dev->mem_start & 0x7) : 4;
- if (dev->mem_end & 0xf)
- net_debug = dev->mem_end & 7;
-
- dev->netdev_ops = &atp_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- res = register_netdev(dev);
- if (res) {
- free_netdev(dev);
- return res;
- }
-
- lp->next_module = root_atp_dev;
- root_atp_dev = dev;
-
- return 0;
-}
-
-/* Read the station address PROM, usually a word-wide EEPROM. */
-static void __init get_node_ID(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
- int sa_offset = 0;
- int i;
-
- write_reg(ioaddr, CMR2, CMR2_EEPROM); /* Point to the EEPROM control registers. */
-
- /* Some adapters have the station address at offset 15 instead of offset
- zero. Check for it, and fix it if needed. */
- if (eeprom_op(ioaddr, EE_READ(0)) == 0xffff)
- sa_offset = 15;
-
- for (i = 0; i < 3; i++)
- ((__be16 *)dev->dev_addr)[i] =
- cpu_to_be16(eeprom_op(ioaddr, EE_READ(sa_offset + i)));
-
- write_reg(ioaddr, CMR2, CMR2_NULL);
-}
-
-/*
- An EEPROM read command starts by shifting out 0x60+address, and then
- shifting in the serial data. See the NatSemi databook for details.
- * ________________
- * CS : __|
- * ___ ___
- * CLK: ______| |___| |
- * __ _______ _______
- * DI : __X_______X_______X
- * DO : _________X_______X
- */
-
-static unsigned short __init eeprom_op(long ioaddr, u32 cmd)
-{
- unsigned eedata_out = 0;
- int num_bits = EE_CMD_SIZE;
-
- while (--num_bits >= 0) {
- char outval = (cmd & (1<<num_bits)) ? EE_DATA_WRITE : 0;
- write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_LOW);
- write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_HIGH);
- eedata_out <<= 1;
- if (read_nibble(ioaddr, PROM_DATA) & EE_DATA_READ)
- eedata_out++;
- }
- write_reg_high(ioaddr, PROM_CMD, EE_CLK_LOW & ~EE_CS);
- return eedata_out;
-}
-
-
-/* Open/initialize the board. This is called (in the current kernel)
- sometime after booting when the 'ifconfig' program is run.
-
- This routine sets everything up anew at each open, even
- registers that "should" only need to be set once at boot, so that
- there is non-reboot way to recover if something goes wrong.
-
- This is an attachable device: if there is no private entry then it wasn't
- probed for at boot-time, and we need to probe for it again.
- */
-static int net_open(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- int ret;
-
- /* The interrupt line is turned off (tri-stated) when the device isn't in
- use. That's especially important for "attached" interfaces where the
- port or interrupt may be shared. */
- ret = request_irq(dev->irq, atp_interrupt, 0, dev->name, dev);
- if (ret)
- return ret;
-
- hardware_init(dev);
-
- init_timer(&lp->timer);
- lp->timer.expires = jiffies + TIMED_CHECKER;
- lp->timer.data = (unsigned long)dev;
- lp->timer.function = atp_timed_checker; /* timer handler */
- add_timer(&lp->timer);
-
- netif_start_queue(dev);
- return 0;
-}
-
-/* This routine resets the hardware. We initialize everything, assuming that
- the hardware may have been temporarily detached. */
-static void hardware_init(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
- int i;
-
- /* Turn off the printer multiplexer on the 8012. */
- for (i = 0; i < 8; i++)
- outb(mux_8012[i], ioaddr + PAR_DATA);
- write_reg_high(ioaddr, CMR1, CMR1h_RESET);
-
- for (i = 0; i < 6; i++)
- write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
-
- write_reg_high(ioaddr, CMR2, lp->addr_mode);
-
- if (net_debug > 2) {
- printk(KERN_DEBUG "%s: Reset: current Rx mode %d.\n", dev->name,
- (read_nibble(ioaddr, CMR2_h) >> 3) & 0x0f);
- }
-
- write_reg(ioaddr, CMR2, CMR2_IRQOUT);
- write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
-
- /* Enable the interrupt line from the serial port. */
- outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
-
- /* Unmask the interesting interrupts. */
- write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
- write_reg_high(ioaddr, IMR, ISRh_RxErr);
-
- lp->tx_unit_busy = 0;
- lp->pac_cnt_in_tx_buf = 0;
- lp->saved_tx_size = 0;
-}
-
-static void trigger_send(long ioaddr, int length)
-{
- write_reg_byte(ioaddr, TxCNT0, length & 0xff);
- write_reg(ioaddr, TxCNT1, length >> 8);
- write_reg(ioaddr, CMR1, CMR1_Xmit);
-}
-
-static void write_packet(long ioaddr, int length, unsigned char *packet, int pad_len, int data_mode)
-{
- if (length & 1)
- {
- length++;
- pad_len++;
- }
-
- outb(EOC+MAR, ioaddr + PAR_DATA);
- if ((data_mode & 1) == 0) {
- /* Write the packet out, starting with the write addr. */
- outb(WrAddr+MAR, ioaddr + PAR_DATA);
- do {
- write_byte_mode0(ioaddr, *packet++);
- } while (--length > pad_len) ;
- do {
- write_byte_mode0(ioaddr, 0);
- } while (--length > 0) ;
- } else {
- /* Write the packet out in slow mode. */
- unsigned char outbyte = *packet++;
-
- outb(Ctrl_LNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
- outb(WrAddr+MAR, ioaddr + PAR_DATA);
-
- outb((outbyte & 0x0f)|0x40, ioaddr + PAR_DATA);
- outb(outbyte & 0x0f, ioaddr + PAR_DATA);
- outbyte >>= 4;
- outb(outbyte & 0x0f, ioaddr + PAR_DATA);
- outb(Ctrl_HNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
- while (--length > pad_len)
- write_byte_mode1(ioaddr, *packet++);
- while (--length > 0)
- write_byte_mode1(ioaddr, 0);
- }
- /* Terminate the Tx frame. End of write: ECB. */
- outb(0xff, ioaddr + PAR_DATA);
- outb(Ctrl_HNibWrite | Ctrl_SelData | Ctrl_IRQEN, ioaddr + PAR_CONTROL);
-}
-
-static void tx_timeout(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
-
- printk(KERN_WARNING "%s: Transmit timed out, %s?\n", dev->name,
- inb(ioaddr + PAR_CONTROL) & 0x10 ? "network cable problem"
- : "IRQ conflict");
- dev->stats.tx_errors++;
- /* Try to restart the adapter. */
- hardware_init(dev);
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue(dev);
- dev->stats.tx_errors++;
-}
-
-static netdev_tx_t atp_send_packet(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
- int length;
- unsigned long flags;
-
- length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
-
- netif_stop_queue(dev);
-
- /* Disable interrupts by writing 0x00 to the Interrupt Mask Register.
- This sequence must not be interrupted by an incoming packet. */
-
- spin_lock_irqsave(&lp->lock, flags);
- write_reg(ioaddr, IMR, 0);
- write_reg_high(ioaddr, IMR, 0);
- spin_unlock_irqrestore(&lp->lock, flags);
-
- write_packet(ioaddr, length, skb->data, length-skb->len, dev->if_port);
-
- lp->pac_cnt_in_tx_buf++;
- if (lp->tx_unit_busy == 0) {
- trigger_send(ioaddr, length);
- lp->saved_tx_size = 0; /* Redundant */
- lp->re_tx = 0;
- lp->tx_unit_busy = 1;
- } else
- lp->saved_tx_size = length;
- /* Re-enable the LPT interrupts. */
- write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
- write_reg_high(ioaddr, IMR, ISRh_RxErr);
-
- dev_kfree_skb (skb);
- return NETDEV_TX_OK;
-}
-
-
-/* The typical workload of the driver:
- Handle the network interface interrupts. */
-static irqreturn_t atp_interrupt(int irq, void *dev_instance)
-{
- struct net_device *dev = dev_instance;
- struct net_local *lp;
- long ioaddr;
- static int num_tx_since_rx;
- int boguscount = max_interrupt_work;
- int handled = 0;
-
- ioaddr = dev->base_addr;
- lp = netdev_priv(dev);
-
- spin_lock(&lp->lock);
-
- /* Disable additional spurious interrupts. */
- outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
-
- /* The adapter's output is currently the IRQ line, switch it to data. */
- write_reg(ioaddr, CMR2, CMR2_NULL);
- write_reg(ioaddr, IMR, 0);
-
- if (net_debug > 5) printk(KERN_DEBUG "%s: In interrupt ", dev->name);
- while (--boguscount > 0) {
- int status = read_nibble(ioaddr, ISR);
- if (net_debug > 5) printk("loop status %02x..", status);
-
- if (status & (ISR_RxOK<<3)) {
- handled = 1;
- write_reg(ioaddr, ISR, ISR_RxOK); /* Clear the Rx interrupt. */
- do {
- int read_status = read_nibble(ioaddr, CMR1);
- if (net_debug > 6)
- printk("handling Rx packet %02x..", read_status);
- /* We acknowledged the normal Rx interrupt, so if the interrupt
- is still outstanding we must have a Rx error. */
- if (read_status & (CMR1_IRQ << 3)) { /* Overrun. */
- dev->stats.rx_over_errors++;
- /* Set to no-accept mode long enough to remove a packet. */
- write_reg_high(ioaddr, CMR2, CMR2h_OFF);
- net_rx(dev);
- /* Clear the interrupt and return to normal Rx mode. */
- write_reg_high(ioaddr, ISR, ISRh_RxErr);
- write_reg_high(ioaddr, CMR2, lp->addr_mode);
- } else if ((read_status & (CMR1_BufEnb << 3)) == 0) {
- net_rx(dev);
- num_tx_since_rx = 0;
- } else
- break;
- } while (--boguscount > 0);
- } else if (status & ((ISR_TxErr + ISR_TxOK)<<3)) {
- handled = 1;
- if (net_debug > 6) printk("handling Tx done..");
- /* Clear the Tx interrupt. We should check for too many failures
- and reinitialize the adapter. */
- write_reg(ioaddr, ISR, ISR_TxErr + ISR_TxOK);
- if (status & (ISR_TxErr<<3)) {
- dev->stats.collisions++;
- if (++lp->re_tx > 15) {
- dev->stats.tx_aborted_errors++;
- hardware_init(dev);
- break;
- }
- /* Attempt to retransmit. */
- if (net_debug > 6) printk("attempting to ReTx");
- write_reg(ioaddr, CMR1, CMR1_ReXmit + CMR1_Xmit);
- } else {
- /* Finish up the transmit. */
- dev->stats.tx_packets++;
- lp->pac_cnt_in_tx_buf--;
- if ( lp->saved_tx_size) {
- trigger_send(ioaddr, lp->saved_tx_size);
- lp->saved_tx_size = 0;
- lp->re_tx = 0;
- } else
- lp->tx_unit_busy = 0;
- netif_wake_queue(dev); /* Inform upper layers. */
- }
- num_tx_since_rx++;
- } else if (num_tx_since_rx > 8 &&
- time_after(jiffies, dev->last_rx + HZ)) {
- if (net_debug > 2)
- printk(KERN_DEBUG "%s: Missed packet? No Rx after %d Tx and "
- "%ld jiffies status %02x CMR1 %02x.\n", dev->name,
- num_tx_since_rx, jiffies - dev->last_rx, status,
- (read_nibble(ioaddr, CMR1) >> 3) & 15);
- dev->stats.rx_missed_errors++;
- hardware_init(dev);
- num_tx_since_rx = 0;
- break;
- } else
- break;
- }
-
- /* This following code fixes a rare (and very difficult to track down)
- problem where the adapter forgets its ethernet address. */
- {
- int i;
- for (i = 0; i < 6; i++)
- write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
-#if 0 && defined(TIMED_CHECKER)
- mod_timer(&lp->timer, jiffies + TIMED_CHECKER);
-#endif
- }
-
- /* Tell the adapter that it can go back to using the output line as IRQ. */
- write_reg(ioaddr, CMR2, CMR2_IRQOUT);
- /* Enable the physical interrupt line, which is sure to be low until.. */
- outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
- /* .. we enable the interrupt sources. */
- write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
- write_reg_high(ioaddr, IMR, ISRh_RxErr); /* Hmmm, really needed? */
-
- spin_unlock(&lp->lock);
-
- if (net_debug > 5) printk("exiting interrupt.\n");
- return IRQ_RETVAL(handled);
-}
-
-#ifdef TIMED_CHECKER
-/* This following code fixes a rare (and very difficult to track down)
- problem where the adapter forgets its ethernet address. */
-static void atp_timed_checker(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- long ioaddr = dev->base_addr;
- struct net_local *lp = netdev_priv(dev);
- int tickssofar = jiffies - lp->last_rx_time;
- int i;
-
- spin_lock(&lp->lock);
- if (tickssofar > 2*HZ) {
-#if 1
- for (i = 0; i < 6; i++)
- write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
- lp->last_rx_time = jiffies;
-#else
- for (i = 0; i < 6; i++)
- if (read_cmd_byte(ioaddr, PAR0 + i) != atp_timed_dev->dev_addr[i])
- {
- struct net_local *lp = netdev_priv(atp_timed_dev);
- write_reg_byte(ioaddr, PAR0 + i, atp_timed_dev->dev_addr[i]);
- if (i == 2)
- dev->stats.tx_errors++;
- else if (i == 3)
- dev->stats.tx_dropped++;
- else if (i == 4)
- dev->stats.collisions++;
- else
- dev->stats.rx_errors++;
- }
-#endif
- }
- spin_unlock(&lp->lock);
- lp->timer.expires = jiffies + TIMED_CHECKER;
- add_timer(&lp->timer);
-}
-#endif
-
-/* We have a good packet(s), get it/them out of the buffers. */
-static void net_rx(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
- struct rx_header rx_head;
-
- /* Process the received packet. */
- outb(EOC+MAR, ioaddr + PAR_DATA);
- read_block(ioaddr, 8, (unsigned char*)&rx_head, dev->if_port);
- if (net_debug > 5)
- printk(KERN_DEBUG " rx_count %04x %04x %04x %04x..", rx_head.pad,
- rx_head.rx_count, rx_head.rx_status, rx_head.cur_addr);
- if ((rx_head.rx_status & 0x77) != 0x01) {
- dev->stats.rx_errors++;
- if (rx_head.rx_status & 0x0004) dev->stats.rx_frame_errors++;
- else if (rx_head.rx_status & 0x0002) dev->stats.rx_crc_errors++;
- if (net_debug > 3)
- printk(KERN_DEBUG "%s: Unknown ATP Rx error %04x.\n",
- dev->name, rx_head.rx_status);
- if (rx_head.rx_status & 0x0020) {
- dev->stats.rx_fifo_errors++;
- write_reg_high(ioaddr, CMR1, CMR1h_TxENABLE);
- write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
- } else if (rx_head.rx_status & 0x0050)
- hardware_init(dev);
- return;
- } else {
- /* Malloc up new buffer. The "-4" omits the FCS (CRC). */
- int pkt_len = (rx_head.rx_count & 0x7ff) - 4;
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(pkt_len + 2);
- if (skb == NULL) {
- printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n",
- dev->name);
- dev->stats.rx_dropped++;
- goto done;
- }
-
- skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- read_block(ioaddr, pkt_len, skb_put(skb,pkt_len), dev->if_port);
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- }
- done:
- write_reg(ioaddr, CMR1, CMR1_NextPkt);
- lp->last_rx_time = jiffies;
-}
-
-static void read_block(long ioaddr, int length, unsigned char *p, int data_mode)
-{
- if (data_mode <= 3) { /* Mode 0 or 1 */
- outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
- outb(length == 8 ? RdAddr | HNib | MAR : RdAddr | MAR,
- ioaddr + PAR_DATA);
- if (data_mode <= 1) { /* Mode 0 or 1 */
- do { *p++ = read_byte_mode0(ioaddr); } while (--length > 0);
- } else { /* Mode 2 or 3 */
- do { *p++ = read_byte_mode2(ioaddr); } while (--length > 0);
- }
- } else if (data_mode <= 5) {
- do { *p++ = read_byte_mode4(ioaddr); } while (--length > 0);
- } else {
- do { *p++ = read_byte_mode6(ioaddr); } while (--length > 0);
- }
-
- outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
- outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
-}
-
-/* The inverse routine to net_open(). */
-static int
-net_close(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
-
- netif_stop_queue(dev);
-
- del_timer_sync(&lp->timer);
-
- /* Flush the Tx and disable Rx here. */
- lp->addr_mode = CMR2h_OFF;
- write_reg_high(ioaddr, CMR2, CMR2h_OFF);
-
- /* Free the IRQ line. */
- outb(0x00, ioaddr + PAR_CONTROL);
- free_irq(dev->irq, dev);
-
- /* Reset the ethernet hardware and activate the printer pass-through. */
- write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
- return 0;
-}
-
-/*
- * Set or clear the multicast filter for this adapter.
- */
-
-static void set_rx_mode_8002(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
-
- if (!netdev_mc_empty(dev) || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC)))
- lp->addr_mode = CMR2h_PROMISC;
- else
- lp->addr_mode = CMR2h_Normal;
- write_reg_high(ioaddr, CMR2, lp->addr_mode);
-}
-
-static void set_rx_mode_8012(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- long ioaddr = dev->base_addr;
- unsigned char new_mode, mc_filter[8]; /* Multicast hash filter */
- int i;
-
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- new_mode = CMR2h_PROMISC;
- } else if ((netdev_mc_count(dev) > 1000) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- memset(mc_filter, 0xff, sizeof(mc_filter));
- new_mode = CMR2h_Normal;
- } else {
- struct netdev_hw_addr *ha;
-
- memset(mc_filter, 0, sizeof(mc_filter));
- netdev_for_each_mc_addr(ha, dev) {
- int filterbit = ether_crc_le(ETH_ALEN, ha->addr) & 0x3f;
- mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
- }
- new_mode = CMR2h_Normal;
- }
- lp->addr_mode = new_mode;
- write_reg(ioaddr, CMR2, CMR2_IRQOUT | 0x04); /* Switch to page 1. */
- for (i = 0; i < 8; i++)
- write_reg_byte(ioaddr, i, mc_filter[i]);
- if (net_debug > 2 || 1) {
- lp->addr_mode = 1;
- printk(KERN_DEBUG "%s: Mode %d, setting multicast filter to",
- dev->name, lp->addr_mode);
- for (i = 0; i < 8; i++)
- printk(" %2.2x", mc_filter[i]);
- printk(".\n");
- }
-
- write_reg_high(ioaddr, CMR2, lp->addr_mode);
- write_reg(ioaddr, CMR2, CMR2_IRQOUT); /* Switch back to page 0 */
-}
-
-static void set_rx_mode(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (lp->chip_type == RTL8002)
- return set_rx_mode_8002(dev);
- else
- return set_rx_mode_8012(dev);
-}
-
-
-static int __init atp_init_module(void) {
- if (debug) /* Emit version even if no cards detected. */
- printk(KERN_INFO "%s", version);
- return atp_init();
-}
-
-static void __exit atp_cleanup_module(void) {
- struct net_device *next_dev;
-
- while (root_atp_dev) {
- struct net_local *atp_local = netdev_priv(root_atp_dev);
- next_dev = atp_local->next_module;
- unregister_netdev(root_atp_dev);
- /* No need to release_region(), since we never snarf it. */
- free_netdev(root_atp_dev);
- root_atp_dev = next_dev;
- }
-}
-
-module_init(atp_init_module);
-module_exit(atp_cleanup_module);
+++ /dev/null
-/* Linux header file for the ATP pocket ethernet adapter. */
-/* v1.09 8/9/2000 becker@scyld.com. */
-
-#include <linux/if_ether.h>
-#include <linux/types.h>
-
-/* The header prepended to received packets. */
-struct rx_header {
- ushort pad; /* Pad. */
- ushort rx_count;
- ushort rx_status; /* Unknown bit assignments :-<. */
- ushort cur_addr; /* Apparently the current buffer address(?) */
-};
-
-#define PAR_DATA 0
-#define PAR_STATUS 1
-#define PAR_CONTROL 2
-
-enum chip_type { RTL8002, RTL8012 };
-
-#define Ctrl_LNibRead 0x08 /* LP_PSELECP */
-#define Ctrl_HNibRead 0
-#define Ctrl_LNibWrite 0x08 /* LP_PSELECP */
-#define Ctrl_HNibWrite 0
-#define Ctrl_SelData 0x04 /* LP_PINITP */
-#define Ctrl_IRQEN 0x10 /* LP_PINTEN */
-
-#define EOW 0xE0
-#define EOC 0xE0
-#define WrAddr 0x40 /* Set address of EPLC read, write register. */
-#define RdAddr 0xC0
-#define HNib 0x10
-
-enum page0_regs
-{
- /* The first six registers hold the ethernet physical station address. */
- PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5,
- TxCNT0 = 6, TxCNT1 = 7, /* The transmit byte count. */
- TxSTAT = 8, RxSTAT = 9, /* Tx and Rx status. */
- ISR = 10, IMR = 11, /* Interrupt status and mask. */
- CMR1 = 12, /* Command register 1. */
- CMR2 = 13, /* Command register 2. */
- MODSEL = 14, /* Mode select register. */
- MAR = 14, /* Memory address register (?). */
- CMR2_h = 0x1d, };
-
-enum eepage_regs
-{ PROM_CMD = 6, PROM_DATA = 7 }; /* Note that PROM_CMD is in the "high" bits. */
-
-
-#define ISR_TxOK 0x01
-#define ISR_RxOK 0x04
-#define ISR_TxErr 0x02
-#define ISRh_RxErr 0x11 /* ISR, high nibble */
-
-#define CMR1h_MUX 0x08 /* Select printer multiplexor on 8012. */
-#define CMR1h_RESET 0x04 /* Reset. */
-#define CMR1h_RxENABLE 0x02 /* Rx unit enable. */
-#define CMR1h_TxENABLE 0x01 /* Tx unit enable. */
-#define CMR1h_TxRxOFF 0x00
-#define CMR1_ReXmit 0x08 /* Trigger a retransmit. */
-#define CMR1_Xmit 0x04 /* Trigger a transmit. */
-#define CMR1_IRQ 0x02 /* Interrupt active. */
-#define CMR1_BufEnb 0x01 /* Enable the buffer(?). */
-#define CMR1_NextPkt 0x01 /* Enable the buffer(?). */
-
-#define CMR2_NULL 8
-#define CMR2_IRQOUT 9
-#define CMR2_RAMTEST 10
-#define CMR2_EEPROM 12 /* Set to page 1, for reading the EEPROM. */
-
-#define CMR2h_OFF 0 /* No accept mode. */
-#define CMR2h_Physical 1 /* Accept a physical address match only. */
-#define CMR2h_Normal 2 /* Accept physical and broadcast address. */
-#define CMR2h_PROMISC 3 /* Promiscuous mode. */
-
-/* An inline function used below: it differs from inb() by explicitly return an unsigned
- char, saving a truncation. */
-static inline unsigned char inbyte(unsigned short port)
-{
- unsigned char _v;
- __asm__ __volatile__ ("inb %w1,%b0" :"=a" (_v):"d" (port));
- return _v;
-}
-
-/* Read register OFFSET.
- This command should always be terminated with read_end(). */
-static inline unsigned char read_nibble(short port, unsigned char offset)
-{
- unsigned char retval;
- outb(EOC+offset, port + PAR_DATA);
- outb(RdAddr+offset, port + PAR_DATA);
- inbyte(port + PAR_STATUS); /* Settling time delay */
- retval = inbyte(port + PAR_STATUS);
- outb(EOC+offset, port + PAR_DATA);
-
- return retval;
-}
-
-/* Functions for bulk data read. The interrupt line is always disabled. */
-/* Get a byte using read mode 0, reading data from the control lines. */
-static inline unsigned char read_byte_mode0(short ioaddr)
-{
- unsigned char low_nib;
-
- outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
- inbyte(ioaddr + PAR_STATUS);
- low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
- outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
- inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
- inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
- return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
-}
-
-/* The same as read_byte_mode0(), but does multiple inb()s for stability. */
-static inline unsigned char read_byte_mode2(short ioaddr)
-{
- unsigned char low_nib;
-
- outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
- inbyte(ioaddr + PAR_STATUS);
- low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
- outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
- inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
- return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
-}
-
-/* Read a byte through the data register. */
-static inline unsigned char read_byte_mode4(short ioaddr)
-{
- unsigned char low_nib;
-
- outb(RdAddr | MAR, ioaddr + PAR_DATA);
- low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
- outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
- return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
-}
-
-/* Read a byte through the data register, double reading to allow settling. */
-static inline unsigned char read_byte_mode6(short ioaddr)
-{
- unsigned char low_nib;
-
- outb(RdAddr | MAR, ioaddr + PAR_DATA);
- inbyte(ioaddr + PAR_STATUS);
- low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
- outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
- inbyte(ioaddr + PAR_STATUS);
- return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
-}
-
-static inline void
-write_reg(short port, unsigned char reg, unsigned char value)
-{
- unsigned char outval;
- outb(EOC | reg, port + PAR_DATA);
- outval = WrAddr | reg;
- outb(outval, port + PAR_DATA);
- outb(outval, port + PAR_DATA); /* Double write for PS/2. */
-
- outval &= 0xf0;
- outval |= value;
- outb(outval, port + PAR_DATA);
- outval &= 0x1f;
- outb(outval, port + PAR_DATA);
- outb(outval, port + PAR_DATA);
-
- outb(EOC | outval, port + PAR_DATA);
-}
-
-static inline void
-write_reg_high(short port, unsigned char reg, unsigned char value)
-{
- unsigned char outval = EOC | HNib | reg;
-
- outb(outval, port + PAR_DATA);
- outval &= WrAddr | HNib | 0x0f;
- outb(outval, port + PAR_DATA);
- outb(outval, port + PAR_DATA); /* Double write for PS/2. */
-
- outval = WrAddr | HNib | value;
- outb(outval, port + PAR_DATA);
- outval &= HNib | 0x0f; /* HNib | value */
- outb(outval, port + PAR_DATA);
- outb(outval, port + PAR_DATA);
-
- outb(EOC | HNib | outval, port + PAR_DATA);
-}
-
-/* Write a byte out using nibble mode. The low nibble is written first. */
-static inline void
-write_reg_byte(short port, unsigned char reg, unsigned char value)
-{
- unsigned char outval;
- outb(EOC | reg, port + PAR_DATA); /* Reset the address register. */
- outval = WrAddr | reg;
- outb(outval, port + PAR_DATA);
- outb(outval, port + PAR_DATA); /* Double write for PS/2. */
-
- outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA);
- outb(value & 0x0f, port + PAR_DATA);
- value >>= 4;
- outb(value, port + PAR_DATA);
- outb(0x10 | value, port + PAR_DATA);
- outb(0x10 | value, port + PAR_DATA);
-
- outb(EOC | value, port + PAR_DATA); /* Reset the address register. */
-}
-
-/*
- * Bulk data writes to the packet buffer. The interrupt line remains enabled.
- * The first, faster method uses only the dataport (data modes 0, 2 & 4).
- * The second (backup) method uses data and control regs (modes 1, 3 & 5).
- * It should only be needed when there is skew between the individual data
- * lines.
- */
-static inline void write_byte_mode0(short ioaddr, unsigned char value)
-{
- outb(value & 0x0f, ioaddr + PAR_DATA);
- outb((value>>4) | 0x10, ioaddr + PAR_DATA);
-}
-
-static inline void write_byte_mode1(short ioaddr, unsigned char value)
-{
- outb(value & 0x0f, ioaddr + PAR_DATA);
- outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL);
- outb((value>>4) | 0x10, ioaddr + PAR_DATA);
- outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL);
-}
-
-/* Write 16bit VALUE to the packet buffer: the same as above just doubled. */
-static inline void write_word_mode0(short ioaddr, unsigned short value)
-{
- outb(value & 0x0f, ioaddr + PAR_DATA);
- value >>= 4;
- outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
- value >>= 4;
- outb(value & 0x0f, ioaddr + PAR_DATA);
- value >>= 4;
- outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
-}
-
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
-#define EE_CS 0x02 /* EEPROM chip select. */
-#define EE_CLK_HIGH 0x12
-#define EE_CLK_LOW 0x16
-#define EE_DATA_WRITE 0x01 /* EEPROM chip data in. */
-#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
-
-/* Delay between EEPROM clock transitions. */
-#define eeprom_delay(ticks) \
-do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_WRITE_CMD(offset) (((5 << 6) + (offset)) << 17)
-#define EE_READ(offset) (((6 << 6) + (offset)) << 17)
-#define EE_ERASE(offset) (((7 << 6) + (offset)) << 17)
-#define EE_CMD_SIZE 27 /* The command+address+data size. */
source "drivers/net/ethernet/pasemi/Kconfig"
source "drivers/net/ethernet/qlogic/Kconfig"
source "drivers/net/ethernet/racal/Kconfig"
+source "drivers/net/ethernet/realtek/Kconfig"
source "drivers/net/ethernet/sfc/Kconfig"
source "drivers/net/ethernet/smsc/Kconfig"
source "drivers/net/ethernet/stmicro/Kconfig"
obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/
obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
+obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/
obj-$(CONFIG_SFC) += sfc/
obj-$(CONFIG_NET_VENDOR_SMSC) += smsc/
obj-$(CONFIG_NET_VENDOR_STMICRO) += stmicro/
--- /dev/null
+/* 8139cp.c: A Linux PCI Ethernet driver for the RealTek 8139C+ chips. */
+/*
+ Copyright 2001-2004 Jeff Garzik <jgarzik@pobox.com>
+
+ Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com) [tg3.c]
+ Copyright (C) 2000, 2001 David S. Miller (davem@redhat.com) [sungem.c]
+ Copyright 2001 Manfred Spraul [natsemi.c]
+ Copyright 1999-2001 by Donald Becker. [natsemi.c]
+ Written 1997-2001 by Donald Becker. [8139too.c]
+ Copyright 1998-2001 by Jes Sorensen, <jes@trained-monkey.org>. [acenic.c]
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ See the file COPYING in this distribution for more information.
+
+ Contributors:
+
+ Wake-on-LAN support - Felipe Damasio <felipewd@terra.com.br>
+ PCI suspend/resume - Felipe Damasio <felipewd@terra.com.br>
+ LinkChg interrupt - Felipe Damasio <felipewd@terra.com.br>
+
+ TODO:
+ * Test Tx checksumming thoroughly
+
+ Low priority TODO:
+ * Complete reset on PciErr
+ * Consider Rx interrupt mitigation using TimerIntr
+ * Investigate using skb->priority with h/w VLAN priority
+ * Investigate using High Priority Tx Queue with skb->priority
+ * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
+ * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
+ * Implement Tx software interrupt mitigation via
+ Tx descriptor bit
+ * The real minimum of CP_MIN_MTU is 4 bytes. However,
+ for this to be supported, one must(?) turn on packet padding.
+ * Support external MII transceivers (patch available)
+
+ NOTES:
+ * TX checksumming is considered experimental. It is off by
+ default, use ethtool to turn it on.
+
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define DRV_NAME "8139cp"
+#define DRV_VERSION "1.3"
+#define DRV_RELDATE "Mar 22, 2004"
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/gfp.h>
+#include <linux/mii.h>
+#include <linux/if_vlan.h>
+#include <linux/crc32.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/cache.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+/* These identify the driver base version and may not be removed. */
+static char version[] =
+DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
+
+MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
+MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");
+
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number");
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+module_param(multicast_filter_limit, int, 0);
+MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses");
+
+#define CP_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK)
+#define CP_NUM_STATS 14 /* struct cp_dma_stats, plus one */
+#define CP_STATS_SIZE 64 /* size in bytes of DMA stats block */
+#define CP_REGS_SIZE (0xff + 1)
+#define CP_REGS_VER 1 /* version 1 */
+#define CP_RX_RING_SIZE 64
+#define CP_TX_RING_SIZE 64
+#define CP_RING_BYTES \
+ ((sizeof(struct cp_desc) * CP_RX_RING_SIZE) + \
+ (sizeof(struct cp_desc) * CP_TX_RING_SIZE) + \
+ CP_STATS_SIZE)
+#define NEXT_TX(N) (((N) + 1) & (CP_TX_RING_SIZE - 1))
+#define NEXT_RX(N) (((N) + 1) & (CP_RX_RING_SIZE - 1))
+#define TX_BUFFS_AVAIL(CP) \
+ (((CP)->tx_tail <= (CP)->tx_head) ? \
+ (CP)->tx_tail + (CP_TX_RING_SIZE - 1) - (CP)->tx_head : \
+ (CP)->tx_tail - (CP)->tx_head - 1)
+
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+#define CP_INTERNAL_PHY 32
+
+/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
+#define RX_FIFO_THRESH 5 /* Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_EARLY_THRESH 256 /* Early Tx threshold, in bytes */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (6*HZ)
+
+/* hardware minimum and maximum for a single frame's data payload */
+#define CP_MIN_MTU 60 /* TODO: allow lower, but pad */
+#define CP_MAX_MTU 4096
+
+enum {
+ /* NIC register offsets */
+ MAC0 = 0x00, /* Ethernet hardware address. */
+ MAR0 = 0x08, /* Multicast filter. */
+ StatsAddr = 0x10, /* 64-bit start addr of 64-byte DMA stats blk */
+ TxRingAddr = 0x20, /* 64-bit start addr of Tx ring */
+ HiTxRingAddr = 0x28, /* 64-bit start addr of high priority Tx ring */
+ Cmd = 0x37, /* Command register */
+ IntrMask = 0x3C, /* Interrupt mask */
+ IntrStatus = 0x3E, /* Interrupt status */
+ TxConfig = 0x40, /* Tx configuration */
+ ChipVersion = 0x43, /* 8-bit chip version, inside TxConfig */
+ RxConfig = 0x44, /* Rx configuration */
+ RxMissed = 0x4C, /* 24 bits valid, write clears */
+ Cfg9346 = 0x50, /* EEPROM select/control; Cfg reg [un]lock */
+ Config1 = 0x52, /* Config1 */
+ Config3 = 0x59, /* Config3 */
+ Config4 = 0x5A, /* Config4 */
+ MultiIntr = 0x5C, /* Multiple interrupt select */
+ BasicModeCtrl = 0x62, /* MII BMCR */
+ BasicModeStatus = 0x64, /* MII BMSR */
+ NWayAdvert = 0x66, /* MII ADVERTISE */
+ NWayLPAR = 0x68, /* MII LPA */
+ NWayExpansion = 0x6A, /* MII Expansion */
+ Config5 = 0xD8, /* Config5 */
+ TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */
+ RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */
+ CpCmd = 0xE0, /* C+ Command register (C+ mode only) */
+ IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */
+ RxRingAddr = 0xE4, /* 64-bit start addr of Rx ring */
+ TxThresh = 0xEC, /* Early Tx threshold */
+ OldRxBufAddr = 0x30, /* DMA address of Rx ring buffer (C mode) */
+ OldTSD0 = 0x10, /* DMA address of first Tx desc (C mode) */
+
+ /* Tx and Rx status descriptors */
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+ LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
+ MSSShift = 16, /* MSS value position */
+ MSSMask = 0xfff, /* MSS value: 11 bits */
+ TxError = (1 << 23), /* Tx error summary */
+ RxError = (1 << 20), /* Rx error summary */
+ IPCS = (1 << 18), /* Calculate IP checksum */
+ UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
+ TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+ RxVlanTagged = (1 << 16), /* Rx VLAN tag available */
+ IPFail = (1 << 15), /* IP checksum failed */
+ UDPFail = (1 << 14), /* UDP/IP checksum failed */
+ TCPFail = (1 << 13), /* TCP/IP checksum failed */
+ NormalTxPoll = (1 << 6), /* One or more normal Tx packets to send */
+ PID1 = (1 << 17), /* 2 protocol id bits: 0==non-IP, */
+ PID0 = (1 << 16), /* 1==UDP/IP, 2==TCP/IP, 3==IP */
+ RxProtoTCP = 1,
+ RxProtoUDP = 2,
+ RxProtoIP = 3,
+ TxFIFOUnder = (1 << 25), /* Tx FIFO underrun */
+ TxOWC = (1 << 22), /* Tx Out-of-window collision */
+ TxLinkFail = (1 << 21), /* Link failed during Tx of packet */
+ TxMaxCol = (1 << 20), /* Tx aborted due to excessive collisions */
+ TxColCntShift = 16, /* Shift, to get 4-bit Tx collision cnt */
+ TxColCntMask = 0x01 | 0x02 | 0x04 | 0x08, /* 4-bit collision count */
+ RxErrFrame = (1 << 27), /* Rx frame alignment error */
+ RxMcast = (1 << 26), /* Rx multicast packet rcv'd */
+ RxErrCRC = (1 << 18), /* Rx CRC error */
+ RxErrRunt = (1 << 19), /* Rx error, packet < 64 bytes */
+ RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */
+ RxErrFIFO = (1 << 22), /* Rx error, FIFO overflowed, pkt bad */
+
+ /* StatsAddr register */
+ DumpStats = (1 << 3), /* Begin stats dump */
+
+ /* RxConfig register */
+ RxCfgFIFOShift = 13, /* Shift, to get Rx FIFO thresh value */
+ RxCfgDMAShift = 8, /* Shift, to get Rx Max DMA value */
+ AcceptErr = 0x20, /* Accept packets with CRC errors */
+ AcceptRunt = 0x10, /* Accept runt (<64 bytes) packets */
+ AcceptBroadcast = 0x08, /* Accept broadcast packets */
+ AcceptMulticast = 0x04, /* Accept multicast packets */
+ AcceptMyPhys = 0x02, /* Accept pkts with our MAC as dest */
+ AcceptAllPhys = 0x01, /* Accept all pkts w/ physical dest */
+
+ /* IntrMask / IntrStatus registers */
+ PciErr = (1 << 15), /* System error on the PCI bus */
+ TimerIntr = (1 << 14), /* Asserted when TCTR reaches TimerInt value */
+ LenChg = (1 << 13), /* Cable length change */
+ SWInt = (1 << 8), /* Software-requested interrupt */
+ TxEmpty = (1 << 7), /* No Tx descriptors available */
+ RxFIFOOvr = (1 << 6), /* Rx FIFO Overflow */
+ LinkChg = (1 << 5), /* Packet underrun, or link change */
+ RxEmpty = (1 << 4), /* No Rx descriptors available */
+ TxErr = (1 << 3), /* Tx error */
+ TxOK = (1 << 2), /* Tx packet sent */
+ RxErr = (1 << 1), /* Rx error */
+ RxOK = (1 << 0), /* Rx packet received */
+ IntrResvd = (1 << 10), /* reserved, according to RealTek engineers,
+ but hardware likes to raise it */
+
+ IntrAll = PciErr | TimerIntr | LenChg | SWInt | TxEmpty |
+ RxFIFOOvr | LinkChg | RxEmpty | TxErr | TxOK |
+ RxErr | RxOK | IntrResvd,
+
+ /* C mode command register */
+ CmdReset = (1 << 4), /* Enable to reset; self-clearing */
+ RxOn = (1 << 3), /* Rx mode enable */
+ TxOn = (1 << 2), /* Tx mode enable */
+
+ /* C+ mode command register */
+ RxVlanOn = (1 << 6), /* Rx VLAN de-tagging enable */
+ RxChkSum = (1 << 5), /* Rx checksum offload enable */
+ PCIDAC = (1 << 4), /* PCI Dual Address Cycle (64-bit PCI) */
+ PCIMulRW = (1 << 3), /* Enable PCI read/write multiple */
+ CpRxOn = (1 << 1), /* Rx mode enable */
+ CpTxOn = (1 << 0), /* Tx mode enable */
+
+ /* Cfg9436 EEPROM control register */
+ Cfg9346_Lock = 0x00, /* Lock ConfigX/MII register access */
+ Cfg9346_Unlock = 0xC0, /* Unlock ConfigX/MII register access */
+
+ /* TxConfig register */
+ IFG = (1 << 25) | (1 << 24), /* standard IEEE interframe gap */
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Early Tx Threshold register */
+ TxThreshMask = 0x3f, /* Mask bits 5-0 */
+ TxThreshMax = 2048, /* Max early Tx threshold */
+
+ /* Config1 register */
+ DriverLoaded = (1 << 5), /* Software marker, driver is loaded */
+ LWACT = (1 << 4), /* LWAKE active mode */
+ PMEnable = (1 << 0), /* Enable various PM features of chip */
+
+ /* Config3 register */
+ PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+
+ /* Config4 register */
+ LWPTN = (1 << 1), /* LWAKE Pattern */
+ LWPME = (1 << 4), /* LANWAKE vs PMEB */
+
+ /* Config5 register */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ LANWake = (1 << 1), /* Enable LANWake signal */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+
+ cp_norx_intr_mask = PciErr | LinkChg | TxOK | TxErr | TxEmpty,
+ cp_rx_intr_mask = RxOK | RxErr | RxEmpty | RxFIFOOvr,
+ cp_intr_mask = cp_rx_intr_mask | cp_norx_intr_mask,
+};
+
+static const unsigned int cp_rx_config =
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+
+struct cp_desc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct cp_dma_stats {
+ __le64 tx_ok;
+ __le64 rx_ok;
+ __le64 tx_err;
+ __le32 rx_err;
+ __le16 rx_fifo;
+ __le16 frame_align;
+ __le32 tx_ok_1col;
+ __le32 tx_ok_mcol;
+ __le64 rx_ok_phys;
+ __le64 rx_ok_bcast;
+ __le32 rx_ok_mcast;
+ __le16 tx_abort;
+ __le16 tx_underrun;
+} __packed;
+
+struct cp_extra_stats {
+ unsigned long rx_frags;
+};
+
+struct cp_private {
+ void __iomem *regs;
+ struct net_device *dev;
+ spinlock_t lock;
+ u32 msg_enable;
+
+ struct napi_struct napi;
+
+ struct pci_dev *pdev;
+ u32 rx_config;
+ u16 cpcmd;
+
+ struct cp_extra_stats cp_stats;
+
+ unsigned rx_head ____cacheline_aligned;
+ unsigned rx_tail;
+ struct cp_desc *rx_ring;
+ struct sk_buff *rx_skb[CP_RX_RING_SIZE];
+
+ unsigned tx_head ____cacheline_aligned;
+ unsigned tx_tail;
+ struct cp_desc *tx_ring;
+ struct sk_buff *tx_skb[CP_TX_RING_SIZE];
+
+ unsigned rx_buf_sz;
+ unsigned wol_enabled : 1; /* Is Wake-on-LAN enabled? */
+
+ dma_addr_t ring_dma;
+
+ struct mii_if_info mii_if;
+};
+
+#define cpr8(reg) readb(cp->regs + (reg))
+#define cpr16(reg) readw(cp->regs + (reg))
+#define cpr32(reg) readl(cp->regs + (reg))
+#define cpw8(reg,val) writeb((val), cp->regs + (reg))
+#define cpw16(reg,val) writew((val), cp->regs + (reg))
+#define cpw32(reg,val) writel((val), cp->regs + (reg))
+#define cpw8_f(reg,val) do { \
+ writeb((val), cp->regs + (reg)); \
+ readb(cp->regs + (reg)); \
+ } while (0)
+#define cpw16_f(reg,val) do { \
+ writew((val), cp->regs + (reg)); \
+ readw(cp->regs + (reg)); \
+ } while (0)
+#define cpw32_f(reg,val) do { \
+ writel((val), cp->regs + (reg)); \
+ readl(cp->regs + (reg)); \
+ } while (0)
+
+
+static void __cp_set_rx_mode (struct net_device *dev);
+static void cp_tx (struct cp_private *cp);
+static void cp_clean_rings (struct cp_private *cp);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void cp_poll_controller(struct net_device *dev);
+#endif
+static int cp_get_eeprom_len(struct net_device *dev);
+static int cp_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data);
+static int cp_set_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data);
+
+static DEFINE_PCI_DEVICE_TABLE(cp_pci_tbl) = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322), },
+ { },
+};
+MODULE_DEVICE_TABLE(pci, cp_pci_tbl);
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+ { "tx_ok" },
+ { "rx_ok" },
+ { "tx_err" },
+ { "rx_err" },
+ { "rx_fifo" },
+ { "frame_align" },
+ { "tx_ok_1col" },
+ { "tx_ok_mcol" },
+ { "rx_ok_phys" },
+ { "rx_ok_bcast" },
+ { "rx_ok_mcast" },
+ { "tx_abort" },
+ { "tx_underrun" },
+ { "rx_frags" },
+};
+
+
+static inline void cp_set_rxbufsize (struct cp_private *cp)
+{
+ unsigned int mtu = cp->dev->mtu;
+
+ if (mtu > ETH_DATA_LEN)
+ /* MTU + ethernet header + FCS + optional VLAN tag */
+ cp->rx_buf_sz = mtu + ETH_HLEN + 8;
+ else
+ cp->rx_buf_sz = PKT_BUF_SZ;
+}
+
+static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb,
+ struct cp_desc *desc)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+
+ skb->protocol = eth_type_trans (skb, cp->dev);
+
+ cp->dev->stats.rx_packets++;
+ cp->dev->stats.rx_bytes += skb->len;
+
+ if (opts2 & RxVlanTagged)
+ __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
+
+ napi_gro_receive(&cp->napi, skb);
+}
+
+static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail,
+ u32 status, u32 len)
+{
+ netif_dbg(cp, rx_err, cp->dev, "rx err, slot %d status 0x%x len %d\n",
+ rx_tail, status, len);
+ cp->dev->stats.rx_errors++;
+ if (status & RxErrFrame)
+ cp->dev->stats.rx_frame_errors++;
+ if (status & RxErrCRC)
+ cp->dev->stats.rx_crc_errors++;
+ if ((status & RxErrRunt) || (status & RxErrLong))
+ cp->dev->stats.rx_length_errors++;
+ if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag))
+ cp->dev->stats.rx_length_errors++;
+ if (status & RxErrFIFO)
+ cp->dev->stats.rx_fifo_errors++;
+}
+
+static inline unsigned int cp_rx_csum_ok (u32 status)
+{
+ unsigned int protocol = (status >> 16) & 0x3;
+
+ if (((protocol == RxProtoTCP) && !(status & TCPFail)) ||
+ ((protocol == RxProtoUDP) && !(status & UDPFail)))
+ return 1;
+ else
+ return 0;
+}
+
+static int cp_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct cp_private *cp = container_of(napi, struct cp_private, napi);
+ struct net_device *dev = cp->dev;
+ unsigned int rx_tail = cp->rx_tail;
+ int rx;
+
+rx_status_loop:
+ rx = 0;
+ cpw16(IntrStatus, cp_rx_intr_mask);
+
+ while (1) {
+ u32 status, len;
+ dma_addr_t mapping;
+ struct sk_buff *skb, *new_skb;
+ struct cp_desc *desc;
+ const unsigned buflen = cp->rx_buf_sz;
+
+ skb = cp->rx_skb[rx_tail];
+ BUG_ON(!skb);
+
+ desc = &cp->rx_ring[rx_tail];
+ status = le32_to_cpu(desc->opts1);
+ if (status & DescOwn)
+ break;
+
+ len = (status & 0x1fff) - 4;
+ mapping = le64_to_cpu(desc->addr);
+
+ if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) {
+ /* we don't support incoming fragmented frames.
+ * instead, we attempt to ensure that the
+ * pre-allocated RX skbs are properly sized such
+ * that RX fragments are never encountered
+ */
+ cp_rx_err_acct(cp, rx_tail, status, len);
+ dev->stats.rx_dropped++;
+ cp->cp_stats.rx_frags++;
+ goto rx_next;
+ }
+
+ if (status & (RxError | RxErrFIFO)) {
+ cp_rx_err_acct(cp, rx_tail, status, len);
+ goto rx_next;
+ }
+
+ netif_dbg(cp, rx_status, dev, "rx slot %d status 0x%x len %d\n",
+ rx_tail, status, len);
+
+ new_skb = netdev_alloc_skb_ip_align(dev, buflen);
+ if (!new_skb) {
+ dev->stats.rx_dropped++;
+ goto rx_next;
+ }
+
+ dma_unmap_single(&cp->pdev->dev, mapping,
+ buflen, PCI_DMA_FROMDEVICE);
+
+ /* Handle checksum offloading for incoming packets. */
+ if (cp_rx_csum_ok(status))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb_checksum_none_assert(skb);
+
+ skb_put(skb, len);
+
+ mapping = dma_map_single(&cp->pdev->dev, new_skb->data, buflen,
+ PCI_DMA_FROMDEVICE);
+ cp->rx_skb[rx_tail] = new_skb;
+
+ cp_rx_skb(cp, skb, desc);
+ rx++;
+
+rx_next:
+ cp->rx_ring[rx_tail].opts2 = 0;
+ cp->rx_ring[rx_tail].addr = cpu_to_le64(mapping);
+ if (rx_tail == (CP_RX_RING_SIZE - 1))
+ desc->opts1 = cpu_to_le32(DescOwn | RingEnd |
+ cp->rx_buf_sz);
+ else
+ desc->opts1 = cpu_to_le32(DescOwn | cp->rx_buf_sz);
+ rx_tail = NEXT_RX(rx_tail);
+
+ if (rx >= budget)
+ break;
+ }
+
+ cp->rx_tail = rx_tail;
+
+ /* if we did not reach work limit, then we're done with
+ * this round of polling
+ */
+ if (rx < budget) {
+ unsigned long flags;
+
+ if (cpr16(IntrStatus) & cp_rx_intr_mask)
+ goto rx_status_loop;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ __napi_complete(napi);
+ cpw16_f(IntrMask, cp_intr_mask);
+ spin_unlock_irqrestore(&cp->lock, flags);
+ }
+
+ return rx;
+}
+
+static irqreturn_t cp_interrupt (int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct cp_private *cp;
+ u16 status;
+
+ if (unlikely(dev == NULL))
+ return IRQ_NONE;
+ cp = netdev_priv(dev);
+
+ status = cpr16(IntrStatus);
+ if (!status || (status == 0xFFFF))
+ return IRQ_NONE;
+
+ netif_dbg(cp, intr, dev, "intr, status %04x cmd %02x cpcmd %04x\n",
+ status, cpr8(Cmd), cpr16(CpCmd));
+
+ cpw16(IntrStatus, status & ~cp_rx_intr_mask);
+
+ spin_lock(&cp->lock);
+
+ /* close possible race's with dev_close */
+ if (unlikely(!netif_running(dev))) {
+ cpw16(IntrMask, 0);
+ spin_unlock(&cp->lock);
+ return IRQ_HANDLED;
+ }
+
+ if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr))
+ if (napi_schedule_prep(&cp->napi)) {
+ cpw16_f(IntrMask, cp_norx_intr_mask);
+ __napi_schedule(&cp->napi);
+ }
+
+ if (status & (TxOK | TxErr | TxEmpty | SWInt))
+ cp_tx(cp);
+ if (status & LinkChg)
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
+
+ spin_unlock(&cp->lock);
+
+ if (status & PciErr) {
+ u16 pci_status;
+
+ pci_read_config_word(cp->pdev, PCI_STATUS, &pci_status);
+ pci_write_config_word(cp->pdev, PCI_STATUS, pci_status);
+ netdev_err(dev, "PCI bus error, status=%04x, PCI status=%04x\n",
+ status, pci_status);
+
+ /* TODO: reset hardware */
+ }
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void cp_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ cp_interrupt(dev->irq, dev);
+ enable_irq(dev->irq);
+}
+#endif
+
+static void cp_tx (struct cp_private *cp)
+{
+ unsigned tx_head = cp->tx_head;
+ unsigned tx_tail = cp->tx_tail;
+
+ while (tx_tail != tx_head) {
+ struct cp_desc *txd = cp->tx_ring + tx_tail;
+ struct sk_buff *skb;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(txd->opts1);
+ if (status & DescOwn)
+ break;
+
+ skb = cp->tx_skb[tx_tail];
+ BUG_ON(!skb);
+
+ dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr),
+ le32_to_cpu(txd->opts1) & 0xffff,
+ PCI_DMA_TODEVICE);
+
+ if (status & LastFrag) {
+ if (status & (TxError | TxFIFOUnder)) {
+ netif_dbg(cp, tx_err, cp->dev,
+ "tx err, status 0x%x\n", status);
+ cp->dev->stats.tx_errors++;
+ if (status & TxOWC)
+ cp->dev->stats.tx_window_errors++;
+ if (status & TxMaxCol)
+ cp->dev->stats.tx_aborted_errors++;
+ if (status & TxLinkFail)
+ cp->dev->stats.tx_carrier_errors++;
+ if (status & TxFIFOUnder)
+ cp->dev->stats.tx_fifo_errors++;
+ } else {
+ cp->dev->stats.collisions +=
+ ((status >> TxColCntShift) & TxColCntMask);
+ cp->dev->stats.tx_packets++;
+ cp->dev->stats.tx_bytes += skb->len;
+ netif_dbg(cp, tx_done, cp->dev,
+ "tx done, slot %d\n", tx_tail);
+ }
+ dev_kfree_skb_irq(skb);
+ }
+
+ cp->tx_skb[tx_tail] = NULL;
+
+ tx_tail = NEXT_TX(tx_tail);
+ }
+
+ cp->tx_tail = tx_tail;
+
+ if (TX_BUFFS_AVAIL(cp) > (MAX_SKB_FRAGS + 1))
+ netif_wake_queue(cp->dev);
+}
+
+static inline u32 cp_tx_vlan_tag(struct sk_buff *skb)
+{
+ return vlan_tx_tag_present(skb) ?
+ TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
+}
+
+static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned entry;
+ u32 eor, flags;
+ unsigned long intr_flags;
+ __le32 opts2;
+ int mss = 0;
+
+ spin_lock_irqsave(&cp->lock, intr_flags);
+
+ /* This is a hard error, log it. */
+ if (TX_BUFFS_AVAIL(cp) <= (skb_shinfo(skb)->nr_frags + 1)) {
+ netif_stop_queue(dev);
+ spin_unlock_irqrestore(&cp->lock, intr_flags);
+ netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
+ return NETDEV_TX_BUSY;
+ }
+
+ entry = cp->tx_head;
+ eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
+ mss = skb_shinfo(skb)->gso_size;
+
+ opts2 = cpu_to_le32(cp_tx_vlan_tag(skb));
+
+ if (skb_shinfo(skb)->nr_frags == 0) {
+ struct cp_desc *txd = &cp->tx_ring[entry];
+ u32 len;
+ dma_addr_t mapping;
+
+ len = skb->len;
+ mapping = dma_map_single(&cp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(mapping);
+ wmb();
+
+ flags = eor | len | DescOwn | FirstFrag | LastFrag;
+
+ if (mss)
+ flags |= LargeSend | ((mss & MSSMask) << MSSShift);
+ else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+ if (ip->protocol == IPPROTO_TCP)
+ flags |= IPCS | TCPCS;
+ else if (ip->protocol == IPPROTO_UDP)
+ flags |= IPCS | UDPCS;
+ else
+ WARN_ON(1); /* we need a WARN() */
+ }
+
+ txd->opts1 = cpu_to_le32(flags);
+ wmb();
+
+ cp->tx_skb[entry] = skb;
+ entry = NEXT_TX(entry);
+ } else {
+ struct cp_desc *txd;
+ u32 first_len, first_eor;
+ dma_addr_t first_mapping;
+ int frag, first_entry = entry;
+ const struct iphdr *ip = ip_hdr(skb);
+
+ /* We must give this initial chunk to the device last.
+ * Otherwise we could race with the device.
+ */
+ first_eor = eor;
+ first_len = skb_headlen(skb);
+ first_mapping = dma_map_single(&cp->pdev->dev, skb->data,
+ first_len, PCI_DMA_TODEVICE);
+ cp->tx_skb[entry] = skb;
+ entry = NEXT_TX(entry);
+
+ for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
+ skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag];
+ u32 len;
+ u32 ctrl;
+ dma_addr_t mapping;
+
+ len = this_frag->size;
+ mapping = dma_map_single(&cp->pdev->dev,
+ ((void *) page_address(this_frag->page) +
+ this_frag->page_offset),
+ len, PCI_DMA_TODEVICE);
+ eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
+
+ ctrl = eor | len | DescOwn;
+
+ if (mss)
+ ctrl |= LargeSend |
+ ((mss & MSSMask) << MSSShift);
+ else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ if (ip->protocol == IPPROTO_TCP)
+ ctrl |= IPCS | TCPCS;
+ else if (ip->protocol == IPPROTO_UDP)
+ ctrl |= IPCS | UDPCS;
+ else
+ BUG();
+ }
+
+ if (frag == skb_shinfo(skb)->nr_frags - 1)
+ ctrl |= LastFrag;
+
+ txd = &cp->tx_ring[entry];
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(mapping);
+ wmb();
+
+ txd->opts1 = cpu_to_le32(ctrl);
+ wmb();
+
+ cp->tx_skb[entry] = skb;
+ entry = NEXT_TX(entry);
+ }
+
+ txd = &cp->tx_ring[first_entry];
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(first_mapping);
+ wmb();
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ if (ip->protocol == IPPROTO_TCP)
+ txd->opts1 = cpu_to_le32(first_eor | first_len |
+ FirstFrag | DescOwn |
+ IPCS | TCPCS);
+ else if (ip->protocol == IPPROTO_UDP)
+ txd->opts1 = cpu_to_le32(first_eor | first_len |
+ FirstFrag | DescOwn |
+ IPCS | UDPCS);
+ else
+ BUG();
+ } else
+ txd->opts1 = cpu_to_le32(first_eor | first_len |
+ FirstFrag | DescOwn);
+ wmb();
+ }
+ cp->tx_head = entry;
+ netif_dbg(cp, tx_queued, cp->dev, "tx queued, slot %d, skblen %d\n",
+ entry, skb->len);
+ if (TX_BUFFS_AVAIL(cp) <= (MAX_SKB_FRAGS + 1))
+ netif_stop_queue(dev);
+
+ spin_unlock_irqrestore(&cp->lock, intr_flags);
+
+ cpw8(TxPoll, NormalTxPoll);
+
+ return NETDEV_TX_OK;
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ This routine is not state sensitive and need not be SMP locked. */
+
+static void __cp_set_rx_mode (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp;
+
+ /* Note: do not reorder, GCC is clever about common statements. */
+ if (dev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ /* We can safely update without stopping the chip. */
+ tmp = cp_rx_config | rx_mode;
+ if (cp->rx_config != tmp) {
+ cpw32_f (RxConfig, tmp);
+ cp->rx_config = tmp;
+ }
+ cpw32_f (MAR0 + 0, mc_filter[0]);
+ cpw32_f (MAR0 + 4, mc_filter[1]);
+}
+
+static void cp_set_rx_mode (struct net_device *dev)
+{
+ unsigned long flags;
+ struct cp_private *cp = netdev_priv(dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+ __cp_set_rx_mode(dev);
+ spin_unlock_irqrestore (&cp->lock, flags);
+}
+
+static void __cp_get_stats(struct cp_private *cp)
+{
+ /* only lower 24 bits valid; write any value to clear */
+ cp->dev->stats.rx_missed_errors += (cpr32 (RxMissed) & 0xffffff);
+ cpw32 (RxMissed, 0);
+}
+
+static struct net_device_stats *cp_get_stats(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ /* The chip only need report frame silently dropped. */
+ spin_lock_irqsave(&cp->lock, flags);
+ if (netif_running(dev) && netif_device_present(dev))
+ __cp_get_stats(cp);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return &dev->stats;
+}
+
+static void cp_stop_hw (struct cp_private *cp)
+{
+ cpw16(IntrStatus, ~(cpr16(IntrStatus)));
+ cpw16_f(IntrMask, 0);
+ cpw8(Cmd, 0);
+ cpw16_f(CpCmd, 0);
+ cpw16_f(IntrStatus, ~(cpr16(IntrStatus)));
+
+ cp->rx_tail = 0;
+ cp->tx_head = cp->tx_tail = 0;
+}
+
+static void cp_reset_hw (struct cp_private *cp)
+{
+ unsigned work = 1000;
+
+ cpw8(Cmd, CmdReset);
+
+ while (work--) {
+ if (!(cpr8(Cmd) & CmdReset))
+ return;
+
+ schedule_timeout_uninterruptible(10);
+ }
+
+ netdev_err(cp->dev, "hardware reset timeout\n");
+}
+
+static inline void cp_start_hw (struct cp_private *cp)
+{
+ cpw16(CpCmd, cp->cpcmd);
+ cpw8(Cmd, RxOn | TxOn);
+}
+
+static void cp_init_hw (struct cp_private *cp)
+{
+ struct net_device *dev = cp->dev;
+ dma_addr_t ring_dma;
+
+ cp_reset_hw(cp);
+
+ cpw8_f (Cfg9346, Cfg9346_Unlock);
+
+ /* Restore our idea of the MAC address. */
+ cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
+
+ cp_start_hw(cp);
+ cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */
+
+ __cp_set_rx_mode(dev);
+ cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift));
+
+ cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable);
+ /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */
+ cpw8(Config3, PARMEnable);
+ cp->wol_enabled = 0;
+
+ cpw8(Config5, cpr8(Config5) & PMEStatus);
+
+ cpw32_f(HiTxRingAddr, 0);
+ cpw32_f(HiTxRingAddr + 4, 0);
+
+ ring_dma = cp->ring_dma;
+ cpw32_f(RxRingAddr, ring_dma & 0xffffffff);
+ cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16);
+
+ ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE;
+ cpw32_f(TxRingAddr, ring_dma & 0xffffffff);
+ cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16);
+
+ cpw16(MultiIntr, 0);
+
+ cpw16_f(IntrMask, cp_intr_mask);
+
+ cpw8_f(Cfg9346, Cfg9346_Lock);
+}
+
+static int cp_refill_rx(struct cp_private *cp)
+{
+ struct net_device *dev = cp->dev;
+ unsigned i;
+
+ for (i = 0; i < CP_RX_RING_SIZE; i++) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+
+ skb = netdev_alloc_skb_ip_align(dev, cp->rx_buf_sz);
+ if (!skb)
+ goto err_out;
+
+ mapping = dma_map_single(&cp->pdev->dev, skb->data,
+ cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ cp->rx_skb[i] = skb;
+
+ cp->rx_ring[i].opts2 = 0;
+ cp->rx_ring[i].addr = cpu_to_le64(mapping);
+ if (i == (CP_RX_RING_SIZE - 1))
+ cp->rx_ring[i].opts1 =
+ cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz);
+ else
+ cp->rx_ring[i].opts1 =
+ cpu_to_le32(DescOwn | cp->rx_buf_sz);
+ }
+
+ return 0;
+
+err_out:
+ cp_clean_rings(cp);
+ return -ENOMEM;
+}
+
+static void cp_init_rings_index (struct cp_private *cp)
+{
+ cp->rx_tail = 0;
+ cp->tx_head = cp->tx_tail = 0;
+}
+
+static int cp_init_rings (struct cp_private *cp)
+{
+ memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
+ cp->tx_ring[CP_TX_RING_SIZE - 1].opts1 = cpu_to_le32(RingEnd);
+
+ cp_init_rings_index(cp);
+
+ return cp_refill_rx (cp);
+}
+
+static int cp_alloc_rings (struct cp_private *cp)
+{
+ void *mem;
+
+ mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES,
+ &cp->ring_dma, GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
+
+ cp->rx_ring = mem;
+ cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE];
+
+ return cp_init_rings(cp);
+}
+
+static void cp_clean_rings (struct cp_private *cp)
+{
+ struct cp_desc *desc;
+ unsigned i;
+
+ for (i = 0; i < CP_RX_RING_SIZE; i++) {
+ if (cp->rx_skb[i]) {
+ desc = cp->rx_ring + i;
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
+ cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(cp->rx_skb[i]);
+ }
+ }
+
+ for (i = 0; i < CP_TX_RING_SIZE; i++) {
+ if (cp->tx_skb[i]) {
+ struct sk_buff *skb = cp->tx_skb[i];
+
+ desc = cp->tx_ring + i;
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
+ le32_to_cpu(desc->opts1) & 0xffff,
+ PCI_DMA_TODEVICE);
+ if (le32_to_cpu(desc->opts1) & LastFrag)
+ dev_kfree_skb(skb);
+ cp->dev->stats.tx_dropped++;
+ }
+ }
+
+ memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
+ memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
+
+ memset(cp->rx_skb, 0, sizeof(struct sk_buff *) * CP_RX_RING_SIZE);
+ memset(cp->tx_skb, 0, sizeof(struct sk_buff *) * CP_TX_RING_SIZE);
+}
+
+static void cp_free_rings (struct cp_private *cp)
+{
+ cp_clean_rings(cp);
+ dma_free_coherent(&cp->pdev->dev, CP_RING_BYTES, cp->rx_ring,
+ cp->ring_dma);
+ cp->rx_ring = NULL;
+ cp->tx_ring = NULL;
+}
+
+static int cp_open (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+
+ netif_dbg(cp, ifup, dev, "enabling interface\n");
+
+ rc = cp_alloc_rings(cp);
+ if (rc)
+ return rc;
+
+ napi_enable(&cp->napi);
+
+ cp_init_hw(cp);
+
+ rc = request_irq(dev->irq, cp_interrupt, IRQF_SHARED, dev->name, dev);
+ if (rc)
+ goto err_out_hw;
+
+ netif_carrier_off(dev);
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), true);
+ netif_start_queue(dev);
+
+ return 0;
+
+err_out_hw:
+ napi_disable(&cp->napi);
+ cp_stop_hw(cp);
+ cp_free_rings(cp);
+ return rc;
+}
+
+static int cp_close (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ napi_disable(&cp->napi);
+
+ netif_dbg(cp, ifdown, dev, "disabling interface\n");
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ netif_stop_queue(dev);
+ netif_carrier_off(dev);
+
+ cp_stop_hw(cp);
+
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ free_irq(dev->irq, dev);
+
+ cp_free_rings(cp);
+ return 0;
+}
+
+static void cp_tx_timeout(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ netdev_warn(dev, "Transmit timeout, status %2x %4x %4x %4x\n",
+ cpr8(Cmd), cpr16(CpCmd),
+ cpr16(IntrStatus), cpr16(IntrMask));
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ cp_stop_hw(cp);
+ cp_clean_rings(cp);
+ rc = cp_init_rings(cp);
+ cp_start_hw(cp);
+
+ netif_wake_queue(dev);
+
+ spin_unlock_irqrestore(&cp->lock, flags);
+}
+
+#ifdef BROKEN
+static int cp_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ /* check for invalid MTU, according to hardware limits */
+ if (new_mtu < CP_MIN_MTU || new_mtu > CP_MAX_MTU)
+ return -EINVAL;
+
+ /* if network interface not up, no need for complexity */
+ if (!netif_running(dev)) {
+ dev->mtu = new_mtu;
+ cp_set_rxbufsize(cp); /* set new rx buf size */
+ return 0;
+ }
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ cp_stop_hw(cp); /* stop h/w and free rings */
+ cp_clean_rings(cp);
+
+ dev->mtu = new_mtu;
+ cp_set_rxbufsize(cp); /* set new rx buf size */
+
+ rc = cp_init_rings(cp); /* realloc and restart h/w */
+ cp_start_hw(cp);
+
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return rc;
+}
+#endif /* BROKEN */
+
+static const char mii_2_8139_map[8] = {
+ BasicModeCtrl,
+ BasicModeStatus,
+ 0,
+ 0,
+ NWayAdvert,
+ NWayLPAR,
+ NWayExpansion,
+ 0
+};
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ return location < 8 && mii_2_8139_map[location] ?
+ readw(cp->regs + mii_2_8139_map[location]) : 0;
+}
+
+
+static void mdio_write(struct net_device *dev, int phy_id, int location,
+ int value)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ if (location == 0) {
+ cpw8(Cfg9346, Cfg9346_Unlock);
+ cpw16(BasicModeCtrl, value);
+ cpw8(Cfg9346, Cfg9346_Lock);
+ } else if (location < 8 && mii_2_8139_map[location])
+ cpw16(mii_2_8139_map[location], value);
+}
+
+/* Set the ethtool Wake-on-LAN settings */
+static int netdev_set_wol (struct cp_private *cp,
+ const struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ options = cpr8 (Config3) & ~(LinkUp | MagicPacket);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_PHY) options |= LinkUp;
+ if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket;
+ }
+
+ cpw8 (Cfg9346, Cfg9346_Unlock);
+ cpw8 (Config3, options);
+ cpw8 (Cfg9346, Cfg9346_Lock);
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5) & ~(UWF | MWF | BWF);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_UCAST) options |= UWF;
+ if (wol->wolopts & WAKE_BCAST) options |= BWF;
+ if (wol->wolopts & WAKE_MCAST) options |= MWF;
+ }
+
+ cpw8 (Config5, options);
+
+ cp->wol_enabled = (wol->wolopts) ? 1 : 0;
+
+ return 0;
+}
+
+/* Get the ethtool Wake-on-LAN settings */
+static void netdev_get_wol (struct cp_private *cp,
+ struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ wol->wolopts = 0; /* Start from scratch */
+ wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC |
+ WAKE_MCAST | WAKE_UCAST;
+ /* We don't need to go on if WOL is disabled */
+ if (!cp->wol_enabled) return;
+
+ options = cpr8 (Config3);
+ if (options & LinkUp) wol->wolopts |= WAKE_PHY;
+ if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC;
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5);
+ if (options & UWF) wol->wolopts |= WAKE_UCAST;
+ if (options & BWF) wol->wolopts |= WAKE_BCAST;
+ if (options & MWF) wol->wolopts |= WAKE_MCAST;
+}
+
+static void cp_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ strcpy (info->driver, DRV_NAME);
+ strcpy (info->version, DRV_VERSION);
+ strcpy (info->bus_info, pci_name(cp->pdev));
+}
+
+static int cp_get_regs_len(struct net_device *dev)
+{
+ return CP_REGS_SIZE;
+}
+
+static int cp_get_sset_count (struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return CP_NUM_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int cp_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ rc = mii_ethtool_gset(&cp->mii_if, cmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return rc;
+}
+
+static int cp_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ rc = mii_ethtool_sset(&cp->mii_if, cmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return rc;
+}
+
+static int cp_nway_reset(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ return mii_nway_restart(&cp->mii_if);
+}
+
+static u32 cp_get_msglevel(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ return cp->msg_enable;
+}
+
+static void cp_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ cp->msg_enable = value;
+}
+
+static int cp_set_features(struct net_device *dev, u32 features)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!((dev->features ^ features) & NETIF_F_RXCSUM))
+ return 0;
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ if (features & NETIF_F_RXCSUM)
+ cp->cpcmd |= RxChkSum;
+ else
+ cp->cpcmd &= ~RxChkSum;
+
+ if (features & NETIF_F_HW_VLAN_RX)
+ cp->cpcmd |= RxVlanOn;
+ else
+ cp->cpcmd &= ~RxVlanOn;
+
+ cpw16_f(CpCmd, cp->cpcmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return 0;
+}
+
+static void cp_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (regs->len < CP_REGS_SIZE)
+ return /* -EINVAL */;
+
+ regs->version = CP_REGS_VER;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ memcpy_fromio(p, cp->regs, CP_REGS_SIZE);
+ spin_unlock_irqrestore(&cp->lock, flags);
+}
+
+static void cp_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave (&cp->lock, flags);
+ netdev_get_wol (cp, wol);
+ spin_unlock_irqrestore (&cp->lock, flags);
+}
+
+static int cp_set_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave (&cp->lock, flags);
+ rc = netdev_set_wol (cp, wol);
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ return rc;
+}
+
+static void cp_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ memcpy(buf, ðtool_stats_keys, sizeof(ethtool_stats_keys));
+ break;
+ default:
+ BUG();
+ break;
+ }
+}
+
+static void cp_get_ethtool_stats (struct net_device *dev,
+ struct ethtool_stats *estats, u64 *tmp_stats)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ struct cp_dma_stats *nic_stats;
+ dma_addr_t dma;
+ int i;
+
+ nic_stats = dma_alloc_coherent(&cp->pdev->dev, sizeof(*nic_stats),
+ &dma, GFP_KERNEL);
+ if (!nic_stats)
+ return;
+
+ /* begin NIC statistics dump */
+ cpw32(StatsAddr + 4, (u64)dma >> 32);
+ cpw32(StatsAddr, ((u64)dma & DMA_BIT_MASK(32)) | DumpStats);
+ cpr32(StatsAddr);
+
+ for (i = 0; i < 1000; i++) {
+ if ((cpr32(StatsAddr) & DumpStats) == 0)
+ break;
+ udelay(10);
+ }
+ cpw32(StatsAddr, 0);
+ cpw32(StatsAddr + 4, 0);
+ cpr32(StatsAddr);
+
+ i = 0;
+ tmp_stats[i++] = le64_to_cpu(nic_stats->tx_ok);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->tx_err);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->rx_err);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->rx_fifo);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->frame_align);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_1col);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_mcol);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_phys);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_bcast);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->rx_ok_mcast);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->tx_abort);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->tx_underrun);
+ tmp_stats[i++] = cp->cp_stats.rx_frags;
+ BUG_ON(i != CP_NUM_STATS);
+
+ dma_free_coherent(&cp->pdev->dev, sizeof(*nic_stats), nic_stats, dma);
+}
+
+static const struct ethtool_ops cp_ethtool_ops = {
+ .get_drvinfo = cp_get_drvinfo,
+ .get_regs_len = cp_get_regs_len,
+ .get_sset_count = cp_get_sset_count,
+ .get_settings = cp_get_settings,
+ .set_settings = cp_set_settings,
+ .nway_reset = cp_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_msglevel = cp_get_msglevel,
+ .set_msglevel = cp_set_msglevel,
+ .get_regs = cp_get_regs,
+ .get_wol = cp_get_wol,
+ .set_wol = cp_set_wol,
+ .get_strings = cp_get_strings,
+ .get_ethtool_stats = cp_get_ethtool_stats,
+ .get_eeprom_len = cp_get_eeprom_len,
+ .get_eeprom = cp_get_eeprom,
+ .set_eeprom = cp_set_eeprom,
+};
+
+static int cp_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ rc = generic_mii_ioctl(&cp->mii_if, if_mii(rq), cmd, NULL);
+ spin_unlock_irqrestore(&cp->lock, flags);
+ return rc;
+}
+
+static int cp_set_mac_address(struct net_device *dev, void *p)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ spin_lock_irq(&cp->lock);
+
+ cpw8_f(Cfg9346, Cfg9346_Unlock);
+ cpw32_f(MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ cpw32_f(MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
+ cpw8_f(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&cp->lock);
+
+ return 0;
+}
+
+/* Serial EEPROM section. */
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x08 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
+#define EE_WRITE_0 0x00
+#define EE_WRITE_1 0x02
+#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
+#define EE_ENB (0x80 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+ */
+
+#define eeprom_delay() readl(ee_addr)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_EXTEND_CMD (4)
+#define EE_WRITE_CMD (5)
+#define EE_READ_CMD (6)
+#define EE_ERASE_CMD (7)
+
+#define EE_EWDS_ADDR (0)
+#define EE_WRAL_ADDR (1)
+#define EE_ERAL_ADDR (2)
+#define EE_EWEN_ADDR (3)
+
+#define CP_EEPROM_MAGIC PCI_DEVICE_ID_REALTEK_8139
+
+static void eeprom_cmd_start(void __iomem *ee_addr)
+{
+ writeb (EE_ENB & ~EE_CS, ee_addr);
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_cmd(void __iomem *ee_addr, int cmd, int cmd_len)
+{
+ int i;
+
+ /* Shift the command bits out. */
+ for (i = cmd_len - 1; i >= 0; i--) {
+ int dataval = (cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ writeb (EE_ENB | dataval, ee_addr);
+ eeprom_delay ();
+ writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay ();
+ }
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_cmd_end(void __iomem *ee_addr)
+{
+ writeb (~EE_CS, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_extend_cmd(void __iomem *ee_addr, int extend_cmd,
+ int addr_len)
+{
+ int cmd = (EE_EXTEND_CMD << addr_len) | (extend_cmd << (addr_len - 2));
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, cmd, 3 + addr_len);
+ eeprom_cmd_end(ee_addr);
+}
+
+static u16 read_eeprom (void __iomem *ioaddr, int location, int addr_len)
+{
+ int i;
+ u16 retval = 0;
+ void __iomem *ee_addr = ioaddr + Cfg9346;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, read_cmd, 3 + addr_len);
+
+ for (i = 16; i > 0; i--) {
+ writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay ();
+ retval =
+ (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
+ 0);
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+ }
+
+ eeprom_cmd_end(ee_addr);
+
+ return retval;
+}
+
+static void write_eeprom(void __iomem *ioaddr, int location, u16 val,
+ int addr_len)
+{
+ int i;
+ void __iomem *ee_addr = ioaddr + Cfg9346;
+ int write_cmd = location | (EE_WRITE_CMD << addr_len);
+
+ eeprom_extend_cmd(ee_addr, EE_EWEN_ADDR, addr_len);
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, write_cmd, 3 + addr_len);
+ eeprom_cmd(ee_addr, val, 16);
+ eeprom_cmd_end(ee_addr);
+
+ eeprom_cmd_start(ee_addr);
+ for (i = 0; i < 20000; i++)
+ if (readb(ee_addr) & EE_DATA_READ)
+ break;
+ eeprom_cmd_end(ee_addr);
+
+ eeprom_extend_cmd(ee_addr, EE_EWDS_ADDR, addr_len);
+}
+
+static int cp_get_eeprom_len(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int size;
+
+ spin_lock_irq(&cp->lock);
+ size = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 256 : 128;
+ spin_unlock_irq(&cp->lock);
+
+ return size;
+}
+
+static int cp_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned int addr_len;
+ u16 val;
+ u32 offset = eeprom->offset >> 1;
+ u32 len = eeprom->len;
+ u32 i = 0;
+
+ eeprom->magic = CP_EEPROM_MAGIC;
+
+ spin_lock_irq(&cp->lock);
+
+ addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
+
+ if (eeprom->offset & 1) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i++] = (u8)(val >> 8);
+ offset++;
+ }
+
+ while (i < len - 1) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i++] = (u8)val;
+ data[i++] = (u8)(val >> 8);
+ offset++;
+ }
+
+ if (i < len) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i] = (u8)val;
+ }
+
+ spin_unlock_irq(&cp->lock);
+ return 0;
+}
+
+static int cp_set_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned int addr_len;
+ u16 val;
+ u32 offset = eeprom->offset >> 1;
+ u32 len = eeprom->len;
+ u32 i = 0;
+
+ if (eeprom->magic != CP_EEPROM_MAGIC)
+ return -EINVAL;
+
+ spin_lock_irq(&cp->lock);
+
+ addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
+
+ if (eeprom->offset & 1) {
+ val = read_eeprom(cp->regs, offset, addr_len) & 0xff;
+ val |= (u16)data[i++] << 8;
+ write_eeprom(cp->regs, offset, val, addr_len);
+ offset++;
+ }
+
+ while (i < len - 1) {
+ val = (u16)data[i++];
+ val |= (u16)data[i++] << 8;
+ write_eeprom(cp->regs, offset, val, addr_len);
+ offset++;
+ }
+
+ if (i < len) {
+ val = read_eeprom(cp->regs, offset, addr_len) & 0xff00;
+ val |= (u16)data[i];
+ write_eeprom(cp->regs, offset, val, addr_len);
+ }
+
+ spin_unlock_irq(&cp->lock);
+ return 0;
+}
+
+/* Put the board into D3cold state and wait for WakeUp signal */
+static void cp_set_d3_state (struct cp_private *cp)
+{
+ pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */
+ pci_set_power_state (cp->pdev, PCI_D3hot);
+}
+
+static const struct net_device_ops cp_netdev_ops = {
+ .ndo_open = cp_open,
+ .ndo_stop = cp_close,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = cp_set_mac_address,
+ .ndo_set_multicast_list = cp_set_rx_mode,
+ .ndo_get_stats = cp_get_stats,
+ .ndo_do_ioctl = cp_ioctl,
+ .ndo_start_xmit = cp_start_xmit,
+ .ndo_tx_timeout = cp_tx_timeout,
+ .ndo_set_features = cp_set_features,
+#ifdef BROKEN
+ .ndo_change_mtu = cp_change_mtu,
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = cp_poll_controller,
+#endif
+};
+
+static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *dev;
+ struct cp_private *cp;
+ int rc;
+ void __iomem *regs;
+ resource_size_t pciaddr;
+ unsigned int addr_len, i, pci_using_dac;
+
+#ifndef MODULE
+ static int version_printed;
+ if (version_printed++ == 0)
+ pr_info("%s", version);
+#endif
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision < 0x20) {
+ dev_info(&pdev->dev,
+ "This (id %04x:%04x rev %02x) is not an 8139C+ compatible chip, use 8139too\n",
+ pdev->vendor, pdev->device, pdev->revision);
+ return -ENODEV;
+ }
+
+ dev = alloc_etherdev(sizeof(struct cp_private));
+ if (!dev)
+ return -ENOMEM;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ cp = netdev_priv(dev);
+ cp->pdev = pdev;
+ cp->dev = dev;
+ cp->msg_enable = (debug < 0 ? CP_DEF_MSG_ENABLE : debug);
+ spin_lock_init (&cp->lock);
+ cp->mii_if.dev = dev;
+ cp->mii_if.mdio_read = mdio_read;
+ cp->mii_if.mdio_write = mdio_write;
+ cp->mii_if.phy_id = CP_INTERNAL_PHY;
+ cp->mii_if.phy_id_mask = 0x1f;
+ cp->mii_if.reg_num_mask = 0x1f;
+ cp_set_rxbufsize(cp);
+
+ rc = pci_enable_device(pdev);
+ if (rc)
+ goto err_out_free;
+
+ rc = pci_set_mwi(pdev);
+ if (rc)
+ goto err_out_disable;
+
+ rc = pci_request_regions(pdev, DRV_NAME);
+ if (rc)
+ goto err_out_mwi;
+
+ pciaddr = pci_resource_start(pdev, 1);
+ if (!pciaddr) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "no MMIO resource\n");
+ goto err_out_res;
+ }
+ if (pci_resource_len(pdev, 1) < CP_REGS_SIZE) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "MMIO resource (%llx) too small\n",
+ (unsigned long long)pci_resource_len(pdev, 1));
+ goto err_out_res;
+ }
+
+ /* Configure DMA attributes. */
+ if ((sizeof(dma_addr_t) > 4) &&
+ !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) &&
+ !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ pci_using_dac = 1;
+ } else {
+ pci_using_dac = 0;
+
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_out_res;
+ }
+ rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc) {
+ dev_err(&pdev->dev,
+ "No usable consistent DMA configuration, aborting\n");
+ goto err_out_res;
+ }
+ }
+
+ cp->cpcmd = (pci_using_dac ? PCIDAC : 0) |
+ PCIMulRW | RxChkSum | CpRxOn | CpTxOn;
+
+ dev->features |= NETIF_F_RXCSUM;
+ dev->hw_features |= NETIF_F_RXCSUM;
+
+ regs = ioremap(pciaddr, CP_REGS_SIZE);
+ if (!regs) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "Cannot map PCI MMIO (%Lx@%Lx)\n",
+ (unsigned long long)pci_resource_len(pdev, 1),
+ (unsigned long long)pciaddr);
+ goto err_out_res;
+ }
+ dev->base_addr = (unsigned long) regs;
+ cp->regs = regs;
+
+ cp_stop_hw(cp);
+
+ /* read MAC address from EEPROM */
+ addr_len = read_eeprom (regs, 0, 8) == 0x8129 ? 8 : 6;
+ for (i = 0; i < 3; i++)
+ ((__le16 *) (dev->dev_addr))[i] =
+ cpu_to_le16(read_eeprom (regs, i + 7, addr_len));
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+ dev->netdev_ops = &cp_netdev_ops;
+ netif_napi_add(dev, &cp->napi, cp_rx_poll, 16);
+ dev->ethtool_ops = &cp_ethtool_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+
+ if (pci_using_dac)
+ dev->features |= NETIF_F_HIGHDMA;
+
+ /* disabled by default until verified */
+ dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HIGHDMA;
+
+ dev->irq = pdev->irq;
+
+ rc = register_netdev(dev);
+ if (rc)
+ goto err_out_iomap;
+
+ netdev_info(dev, "RTL-8139C+ at 0x%lx, %pM, IRQ %d\n",
+ dev->base_addr, dev->dev_addr, dev->irq);
+
+ pci_set_drvdata(pdev, dev);
+
+ /* enable busmastering and memory-write-invalidate */
+ pci_set_master(pdev);
+
+ if (cp->wol_enabled)
+ cp_set_d3_state (cp);
+
+ return 0;
+
+err_out_iomap:
+ iounmap(regs);
+err_out_res:
+ pci_release_regions(pdev);
+err_out_mwi:
+ pci_clear_mwi(pdev);
+err_out_disable:
+ pci_disable_device(pdev);
+err_out_free:
+ free_netdev(dev);
+ return rc;
+}
+
+static void cp_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct cp_private *cp = netdev_priv(dev);
+
+ unregister_netdev(dev);
+ iounmap(cp->regs);
+ if (cp->wol_enabled)
+ pci_set_power_state (pdev, PCI_D0);
+ pci_release_regions(pdev);
+ pci_clear_mwi(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(dev);
+}
+
+#ifdef CONFIG_PM
+static int cp_suspend (struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return 0;
+
+ netif_device_detach (dev);
+ netif_stop_queue (dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+
+ /* Disable Rx and Tx */
+ cpw16 (IntrMask, 0);
+ cpw8 (Cmd, cpr8 (Cmd) & (~RxOn | ~TxOn));
+
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ pci_save_state(pdev);
+ pci_enable_wake(pdev, pci_choose_state(pdev, state), cp->wol_enabled);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int cp_resume (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return 0;
+
+ netif_device_attach (dev);
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_enable_wake(pdev, PCI_D0, 0);
+
+ /* FIXME: sh*t may happen if the Rx ring buffer is depleted */
+ cp_init_rings_index (cp);
+ cp_init_hw (cp);
+ netif_start_queue (dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
+
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct pci_driver cp_driver = {
+ .name = DRV_NAME,
+ .id_table = cp_pci_tbl,
+ .probe = cp_init_one,
+ .remove = cp_remove_one,
+#ifdef CONFIG_PM
+ .resume = cp_resume,
+ .suspend = cp_suspend,
+#endif
+};
+
+static int __init cp_init (void)
+{
+#ifdef MODULE
+ pr_info("%s", version);
+#endif
+ return pci_register_driver(&cp_driver);
+}
+
+static void __exit cp_exit (void)
+{
+ pci_unregister_driver (&cp_driver);
+}
+
+module_init(cp_init);
+module_exit(cp_exit);
--- /dev/null
+/*
+
+ 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000-2002 Jeff Garzik
+
+ Much code comes from Donald Becker's rtl8139.c driver,
+ versions 1.13 and older. This driver was originally based
+ on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
+
+ -----<snip>-----
+
+ Written 1997-2001 by Donald Becker.
+ This software may be used and distributed according to the
+ terms of the GNU General Public License (GPL), incorporated
+ herein by reference. Drivers based on or derived from this
+ code fall under the GPL and must retain the authorship,
+ copyright and license notice. This file is not a complete
+ program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ This driver is for boards based on the RTL8129 and RTL8139
+ PCI ethernet chips.
+
+ The author may be reached as becker@scyld.com, or C/O Scyld
+ Computing Corporation 410 Severn Ave., Suite 210 Annapolis
+ MD 21403
+
+ Support and updates available at
+ http://www.scyld.com/network/rtl8139.html
+
+ Twister-tuning table provided by Kinston
+ <shangh@realtek.com.tw>.
+
+ -----<snip>-----
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Contributors:
+
+ Donald Becker - he wrote the original driver, kudos to him!
+ (but please don't e-mail him for support, this isn't his driver)
+
+ Tigran Aivazian - bug fixes, skbuff free cleanup
+
+ Martin Mares - suggestions for PCI cleanup
+
+ David S. Miller - PCI DMA and softnet updates
+
+ Ernst Gill - fixes ported from BSD driver
+
+ Daniel Kobras - identified specific locations of
+ posted MMIO write bugginess
+
+ Gerard Sharp - bug fix, testing and feedback
+
+ David Ford - Rx ring wrap fix
+
+ Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
+ to find and fix a crucial bug on older chipsets.
+
+ Donald Becker/Chris Butterworth/Marcus Westergren -
+ Noticed various Rx packet size-related buglets.
+
+ Santiago Garcia Mantinan - testing and feedback
+
+ Jens David - 2.2.x kernel backports
+
+ Martin Dennett - incredibly helpful insight on undocumented
+ features of the 8139 chips
+
+ Jean-Jacques Michel - bug fix
+
+ Tobias Ringström - Rx interrupt status checking suggestion
+
+ Andrew Morton - Clear blocked signals, avoid
+ buffer overrun setting current->comm.
+
+ Kalle Olavi Niemitalo - Wake-on-LAN ioctls
+
+ Robert Kuebel - Save kernel thread from dying on any signal.
+
+ Submitting bug reports:
+
+ "rtl8139-diag -mmmaaavvveefN" output
+ enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
+
+*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define DRV_NAME "8139too"
+#define DRV_VERSION "0.9.28"
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/completion.h>
+#include <linux/crc32.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/gfp.h>
+#include <asm/irq.h>
+
+#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
+
+/* Default Message level */
+#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK)
+
+
+/* define to 1, 2 or 3 to enable copious debugging info */
+#define RTL8139_DEBUG 0
+
+/* define to 1 to disable lightweight runtime debugging checks */
+#undef RTL8139_NDEBUG
+
+
+#ifdef RTL8139_NDEBUG
+# define assert(expr) do {} while (0)
+#else
+# define assert(expr) \
+ if (unlikely(!(expr))) { \
+ pr_err("Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr, __FILE__, __func__, __LINE__); \
+ }
+#endif
+
+
+/* A few user-configurable values. */
+/* media options */
+#define MAX_UNITS 8
+static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+
+/* Whether to use MMIO or PIO. Default to MMIO. */
+#ifdef CONFIG_8139TOO_PIO
+static int use_io = 1;
+#else
+static int use_io = 0;
+#endif
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+
+/* bitmapped message enable number */
+static int debug = -1;
+
+/*
+ * Receive ring size
+ * Warning: 64K ring has hardware issues and may lock up.
+ */
+#if defined(CONFIG_SH_DREAMCAST)
+#define RX_BUF_IDX 0 /* 8K ring */
+#else
+#define RX_BUF_IDX 2 /* 32K ring */
+#endif
+#define RX_BUF_LEN (8192 << RX_BUF_IDX)
+#define RX_BUF_PAD 16
+#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
+
+#if RX_BUF_LEN == 65536
+#define RX_BUF_TOT_LEN RX_BUF_LEN
+#else
+#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
+#endif
+
+/* Number of Tx descriptor registers. */
+#define NUM_TX_DESC 4
+
+/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
+#define MAX_ETH_FRAME_SIZE 1536
+
+/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
+#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
+#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
+
+/* PCI Tuning Parameters
+ Threshold is bytes transferred to chip before transmission starts. */
+#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
+
+/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
+#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (6*HZ)
+
+
+enum {
+ HAS_MII_XCVR = 0x010000,
+ HAS_CHIP_XCVR = 0x020000,
+ HAS_LNK_CHNG = 0x040000,
+};
+
+#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */
+#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */
+#define RTL_MIN_IO_SIZE 0x80
+#define RTL8139B_IO_SIZE 256
+
+#define RTL8129_CAPS HAS_MII_XCVR
+#define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG)
+
+typedef enum {
+ RTL8139 = 0,
+ RTL8129,
+} board_t;
+
+
+/* indexed by board_t, above */
+static const struct {
+ const char *name;
+ u32 hw_flags;
+} board_info[] __devinitdata = {
+ { "RealTek RTL8139", RTL8139_CAPS },
+ { "RealTek RTL8129", RTL8129_CAPS },
+};
+
+
+static DEFINE_PCI_DEVICE_TABLE(rtl8139_pci_tbl) = {
+ {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+
+#ifdef CONFIG_SH_SECUREEDGE5410
+ /* Bogus 8139 silicon reports 8129 without external PROM :-( */
+ {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+#endif
+#ifdef CONFIG_8139TOO_8129
+ {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
+#endif
+
+ /* some crazy cards report invalid vendor ids like
+ * 0x0001 here. The other ids are valid and constant,
+ * so we simply don't match on the main vendor id.
+ */
+ {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
+ {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 },
+ {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 },
+
+ {0,}
+};
+MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+ { "early_rx" },
+ { "tx_buf_mapped" },
+ { "tx_timeouts" },
+ { "rx_lost_in_ring" },
+};
+
+/* The rest of these values should never change. */
+
+/* Symbolic offsets to registers. */
+enum RTL8139_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAR0 = 8, /* Multicast filter. */
+ TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
+ TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
+ RxBuf = 0x30,
+ ChipCmd = 0x37,
+ RxBufPtr = 0x38,
+ RxBufAddr = 0x3A,
+ IntrMask = 0x3C,
+ IntrStatus = 0x3E,
+ TxConfig = 0x40,
+ RxConfig = 0x44,
+ Timer = 0x48, /* A general-purpose counter. */
+ RxMissed = 0x4C, /* 24 bits valid, write clears. */
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ TimerInt = 0x54,
+ MediaStatus = 0x58,
+ Config3 = 0x59,
+ Config4 = 0x5A, /* absent on RTL-8139A */
+ HltClk = 0x5B,
+ MultiIntr = 0x5C,
+ TxSummary = 0x60,
+ BasicModeCtrl = 0x62,
+ BasicModeStatus = 0x64,
+ NWayAdvert = 0x66,
+ NWayLPAR = 0x68,
+ NWayExpansion = 0x6A,
+ /* Undocumented registers, but required for proper operation. */
+ FIFOTMS = 0x70, /* FIFO Control and test. */
+ CSCR = 0x74, /* Chip Status and Configuration Register. */
+ PARA78 = 0x78,
+ FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */
+ PARA7c = 0x7c, /* Magic transceiver parameter register. */
+ Config5 = 0xD8, /* absent on RTL-8139A */
+};
+
+enum ClearBitMasks {
+ MultiIntrClear = 0xF000,
+ ChipCmdClear = 0xE2,
+ Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
+};
+
+enum ChipCmdBits {
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+};
+
+/* Interrupt register bits, using my own meaningful names. */
+enum IntrStatusBits {
+ PCIErr = 0x8000,
+ PCSTimeout = 0x4000,
+ RxFIFOOver = 0x40,
+ RxUnderrun = 0x20,
+ RxOverflow = 0x10,
+ TxErr = 0x08,
+ TxOK = 0x04,
+ RxErr = 0x02,
+ RxOK = 0x01,
+
+ RxAckBits = RxFIFOOver | RxOverflow | RxOK,
+};
+
+enum TxStatusBits {
+ TxHostOwns = 0x2000,
+ TxUnderrun = 0x4000,
+ TxStatOK = 0x8000,
+ TxOutOfWindow = 0x20000000,
+ TxAborted = 0x40000000,
+ TxCarrierLost = 0x80000000,
+};
+enum RxStatusBits {
+ RxMulticast = 0x8000,
+ RxPhysical = 0x4000,
+ RxBroadcast = 0x2000,
+ RxBadSymbol = 0x0020,
+ RxRunt = 0x0010,
+ RxTooLong = 0x0008,
+ RxCRCErr = 0x0004,
+ RxBadAlign = 0x0002,
+ RxStatusOK = 0x0001,
+};
+
+/* Bits in RxConfig. */
+enum rx_mode_bits {
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+};
+
+/* Bits in TxConfig. */
+enum tx_config_bits {
+ /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
+ TxIFGShift = 24,
+ TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
+ TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
+ TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
+ TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
+
+ TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
+ TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */
+ TxClearAbt = (1 << 0), /* Clear abort (WO) */
+ TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */
+ TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */
+
+ TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
+};
+
+/* Bits in Config1 */
+enum Config1Bits {
+ Cfg1_PM_Enable = 0x01,
+ Cfg1_VPD_Enable = 0x02,
+ Cfg1_PIO = 0x04,
+ Cfg1_MMIO = 0x08,
+ LWAKE = 0x10, /* not on 8139, 8139A */
+ Cfg1_Driver_Load = 0x20,
+ Cfg1_LED0 = 0x40,
+ Cfg1_LED1 = 0x80,
+ SLEEP = (1 << 1), /* only on 8139, 8139A */
+ PWRDN = (1 << 0), /* only on 8139, 8139A */
+};
+
+/* Bits in Config3 */
+enum Config3Bits {
+ Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
+ Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
+ Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
+ Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
+ Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
+ Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
+ Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
+ Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
+};
+
+/* Bits in Config4 */
+enum Config4Bits {
+ LWPTN = (1 << 2), /* not on 8139, 8139A */
+};
+
+/* Bits in Config5 */
+enum Config5Bits {
+ Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
+ Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
+ Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
+ Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */
+ Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
+ Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
+ Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
+};
+
+enum RxConfigBits {
+ /* rx fifo threshold */
+ RxCfgFIFOShift = 13,
+ RxCfgFIFONone = (7 << RxCfgFIFOShift),
+
+ /* Max DMA burst */
+ RxCfgDMAShift = 8,
+ RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
+
+ /* rx ring buffer length */
+ RxCfgRcv8K = 0,
+ RxCfgRcv16K = (1 << 11),
+ RxCfgRcv32K = (1 << 12),
+ RxCfgRcv64K = (1 << 11) | (1 << 12),
+
+ /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
+ RxNoWrap = (1 << 7),
+};
+
+/* Twister tuning parameters from RealTek.
+ Completely undocumented, but required to tune bad links on some boards. */
+enum CSCRBits {
+ CSCR_LinkOKBit = 0x0400,
+ CSCR_LinkChangeBit = 0x0800,
+ CSCR_LinkStatusBits = 0x0f000,
+ CSCR_LinkDownOffCmd = 0x003c0,
+ CSCR_LinkDownCmd = 0x0f3c0,
+};
+
+enum Cfg9346Bits {
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xC0,
+};
+
+typedef enum {
+ CH_8139 = 0,
+ CH_8139_K,
+ CH_8139A,
+ CH_8139A_G,
+ CH_8139B,
+ CH_8130,
+ CH_8139C,
+ CH_8100,
+ CH_8100B_8139D,
+ CH_8101,
+} chip_t;
+
+enum chip_flags {
+ HasHltClk = (1 << 0),
+ HasLWake = (1 << 1),
+};
+
+#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
+ (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
+#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
+
+/* directly indexed by chip_t, above */
+static const struct {
+ const char *name;
+ u32 version; /* from RTL8139C/RTL8139D docs */
+ u32 flags;
+} rtl_chip_info[] = {
+ { "RTL-8139",
+ HW_REVID(1, 0, 0, 0, 0, 0, 0),
+ HasHltClk,
+ },
+
+ { "RTL-8139 rev K",
+ HW_REVID(1, 1, 0, 0, 0, 0, 0),
+ HasHltClk,
+ },
+
+ { "RTL-8139A",
+ HW_REVID(1, 1, 1, 0, 0, 0, 0),
+ HasHltClk, /* XXX undocumented? */
+ },
+
+ { "RTL-8139A rev G",
+ HW_REVID(1, 1, 1, 0, 0, 1, 0),
+ HasHltClk, /* XXX undocumented? */
+ },
+
+ { "RTL-8139B",
+ HW_REVID(1, 1, 1, 1, 0, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8130",
+ HW_REVID(1, 1, 1, 1, 1, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8139C",
+ HW_REVID(1, 1, 1, 0, 1, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8100",
+ HW_REVID(1, 1, 1, 1, 0, 1, 0),
+ HasLWake,
+ },
+
+ { "RTL-8100B/8139D",
+ HW_REVID(1, 1, 1, 0, 1, 0, 1),
+ HasHltClk /* XXX undocumented? */
+ | HasLWake,
+ },
+
+ { "RTL-8101",
+ HW_REVID(1, 1, 1, 0, 1, 1, 1),
+ HasLWake,
+ },
+};
+
+struct rtl_extra_stats {
+ unsigned long early_rx;
+ unsigned long tx_buf_mapped;
+ unsigned long tx_timeouts;
+ unsigned long rx_lost_in_ring;
+};
+
+struct rtl8139_private {
+ void __iomem *mmio_addr;
+ int drv_flags;
+ struct pci_dev *pci_dev;
+ u32 msg_enable;
+ struct napi_struct napi;
+ struct net_device *dev;
+
+ unsigned char *rx_ring;
+ unsigned int cur_rx; /* RX buf index of next pkt */
+ dma_addr_t rx_ring_dma;
+
+ unsigned int tx_flag;
+ unsigned long cur_tx;
+ unsigned long dirty_tx;
+ unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
+ unsigned char *tx_bufs; /* Tx bounce buffer region. */
+ dma_addr_t tx_bufs_dma;
+
+ signed char phys[4]; /* MII device addresses. */
+
+ /* Twister tune state. */
+ char twistie, twist_row, twist_col;
+
+ unsigned int watchdog_fired : 1;
+ unsigned int default_port : 4; /* Last dev->if_port value. */
+ unsigned int have_thread : 1;
+
+ spinlock_t lock;
+ spinlock_t rx_lock;
+
+ chip_t chipset;
+ u32 rx_config;
+ struct rtl_extra_stats xstats;
+
+ struct delayed_work thread;
+
+ struct mii_if_info mii;
+ unsigned int regs_len;
+ unsigned long fifo_copy_timeout;
+};
+
+MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
+MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(use_io, int, 0);
+MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO");
+module_param(multicast_filter_limit, int, 0);
+module_param_array(media, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+module_param(debug, int, 0);
+MODULE_PARM_DESC (debug, "8139too bitmapped message enable number");
+MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
+MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
+MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
+
+static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
+static int rtl8139_open (struct net_device *dev);
+static int mdio_read (struct net_device *dev, int phy_id, int location);
+static void mdio_write (struct net_device *dev, int phy_id, int location,
+ int val);
+static void rtl8139_start_thread(struct rtl8139_private *tp);
+static void rtl8139_tx_timeout (struct net_device *dev);
+static void rtl8139_init_ring (struct net_device *dev);
+static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
+ struct net_device *dev);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void rtl8139_poll_controller(struct net_device *dev);
+#endif
+static int rtl8139_set_mac_address(struct net_device *dev, void *p);
+static int rtl8139_poll(struct napi_struct *napi, int budget);
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
+static int rtl8139_close (struct net_device *dev);
+static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
+static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
+static void rtl8139_set_rx_mode (struct net_device *dev);
+static void __set_rx_mode (struct net_device *dev);
+static void rtl8139_hw_start (struct net_device *dev);
+static void rtl8139_thread (struct work_struct *work);
+static void rtl8139_tx_timeout_task(struct work_struct *work);
+static const struct ethtool_ops rtl8139_ethtool_ops;
+
+/* write MMIO register, with flush */
+/* Flush avoids rtl8139 bug w/ posted MMIO writes */
+#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
+#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
+#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
+
+/* write MMIO register */
+#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
+
+/* read MMIO register */
+#define RTL_R8(reg) ioread8 (ioaddr + (reg))
+#define RTL_R16(reg) ioread16 (ioaddr + (reg))
+#define RTL_R32(reg) ioread32 (ioaddr + (reg))
+
+
+static const u16 rtl8139_intr_mask =
+ PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
+ TxErr | TxOK | RxErr | RxOK;
+
+static const u16 rtl8139_norx_intr_mask =
+ PCIErr | PCSTimeout | RxUnderrun |
+ TxErr | TxOK | RxErr ;
+
+#if RX_BUF_IDX == 0
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv8K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 1
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv16K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 2
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv32K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 3
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv64K |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#else
+#error "Invalid configuration for 8139_RXBUF_IDX"
+#endif
+
+static const unsigned int rtl8139_tx_config =
+ TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
+
+static void __rtl8139_cleanup_dev (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev;
+
+ assert (dev != NULL);
+ assert (tp->pci_dev != NULL);
+ pdev = tp->pci_dev;
+
+ if (tp->mmio_addr)
+ pci_iounmap (pdev, tp->mmio_addr);
+
+ /* it's ok to call this even if we have no regions to free */
+ pci_release_regions (pdev);
+
+ free_netdev(dev);
+ pci_set_drvdata (pdev, NULL);
+}
+
+
+static void rtl8139_chip_reset (void __iomem *ioaddr)
+{
+ int i;
+
+ /* Soft reset the chip. */
+ RTL_W8 (ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 1000; i > 0; i--) {
+ barrier();
+ if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
+ break;
+ udelay (10);
+ }
+}
+
+
+static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev)
+{
+ void __iomem *ioaddr;
+ struct net_device *dev;
+ struct rtl8139_private *tp;
+ u8 tmp8;
+ int rc, disable_dev_on_err = 0;
+ unsigned int i;
+ unsigned long pio_start, pio_end, pio_flags, pio_len;
+ unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
+ u32 version;
+
+ assert (pdev != NULL);
+
+ /* dev and priv zeroed in alloc_etherdev */
+ dev = alloc_etherdev (sizeof (*tp));
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "Unable to alloc new net device\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ tp = netdev_priv(dev);
+ tp->pci_dev = pdev;
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pci_enable_device (pdev);
+ if (rc)
+ goto err_out;
+
+ pio_start = pci_resource_start (pdev, 0);
+ pio_end = pci_resource_end (pdev, 0);
+ pio_flags = pci_resource_flags (pdev, 0);
+ pio_len = pci_resource_len (pdev, 0);
+
+ mmio_start = pci_resource_start (pdev, 1);
+ mmio_end = pci_resource_end (pdev, 1);
+ mmio_flags = pci_resource_flags (pdev, 1);
+ mmio_len = pci_resource_len (pdev, 1);
+
+ /* set this immediately, we need to know before
+ * we talk to the chip directly */
+ pr_debug("PIO region size == 0x%02lX\n", pio_len);
+ pr_debug("MMIO region size == 0x%02lX\n", mmio_len);
+
+retry:
+ if (use_io) {
+ /* make sure PCI base addr 0 is PIO */
+ if (!(pio_flags & IORESOURCE_IO)) {
+ dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
+ rc = -ENODEV;
+ goto err_out;
+ }
+ /* check for weird/broken PCI region reporting */
+ if (pio_len < RTL_MIN_IO_SIZE) {
+ dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n");
+ rc = -ENODEV;
+ goto err_out;
+ }
+ } else {
+ /* make sure PCI base addr 1 is MMIO */
+ if (!(mmio_flags & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
+ rc = -ENODEV;
+ goto err_out;
+ }
+ if (mmio_len < RTL_MIN_IO_SIZE) {
+ dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n");
+ rc = -ENODEV;
+ goto err_out;
+ }
+ }
+
+ rc = pci_request_regions (pdev, DRV_NAME);
+ if (rc)
+ goto err_out;
+ disable_dev_on_err = 1;
+
+ /* enable PCI bus-mastering */
+ pci_set_master (pdev);
+
+ if (use_io) {
+ ioaddr = pci_iomap(pdev, 0, 0);
+ if (!ioaddr) {
+ dev_err(&pdev->dev, "cannot map PIO, aborting\n");
+ rc = -EIO;
+ goto err_out;
+ }
+ dev->base_addr = pio_start;
+ tp->regs_len = pio_len;
+ } else {
+ /* ioremap MMIO region */
+ ioaddr = pci_iomap(pdev, 1, 0);
+ if (ioaddr == NULL) {
+ dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n");
+ pci_release_regions(pdev);
+ use_io = 1;
+ goto retry;
+ }
+ dev->base_addr = (long) ioaddr;
+ tp->regs_len = mmio_len;
+ }
+ tp->mmio_addr = ioaddr;
+
+ /* Bring old chips out of low-power mode. */
+ RTL_W8 (HltClk, 'R');
+
+ /* check for missing/broken hardware */
+ if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
+ dev_err(&pdev->dev, "Chip not responding, ignoring board\n");
+ rc = -EIO;
+ goto err_out;
+ }
+
+ /* identify chip attached to board */
+ version = RTL_R32 (TxConfig) & HW_REVID_MASK;
+ for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
+ if (version == rtl_chip_info[i].version) {
+ tp->chipset = i;
+ goto match;
+ }
+
+ /* if unknown chip, assume array element #0, original RTL-8139 in this case */
+ i = 0;
+ dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n");
+ dev_dbg(&pdev->dev, "TxConfig = 0x%x\n", RTL_R32 (TxConfig));
+ tp->chipset = 0;
+
+match:
+ pr_debug("chipset id (%d) == index %d, '%s'\n",
+ version, i, rtl_chip_info[i].name);
+
+ if (tp->chipset >= CH_8139B) {
+ u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
+ pr_debug("PCI PM wakeup\n");
+ if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
+ (tmp8 & LWAKE))
+ new_tmp8 &= ~LWAKE;
+ new_tmp8 |= Cfg1_PM_Enable;
+ if (new_tmp8 != tmp8) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config1, tmp8);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ }
+ if (rtl_chip_info[tp->chipset].flags & HasLWake) {
+ tmp8 = RTL_R8 (Config4);
+ if (tmp8 & LWPTN) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config4, tmp8 & ~LWPTN);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ }
+ }
+ } else {
+ pr_debug("Old chip wakeup\n");
+ tmp8 = RTL_R8 (Config1);
+ tmp8 &= ~(SLEEP | PWRDN);
+ RTL_W8 (Config1, tmp8);
+ }
+
+ rtl8139_chip_reset (ioaddr);
+
+ return dev;
+
+err_out:
+ __rtl8139_cleanup_dev (dev);
+ if (disable_dev_on_err)
+ pci_disable_device (pdev);
+ return ERR_PTR(rc);
+}
+
+static const struct net_device_ops rtl8139_netdev_ops = {
+ .ndo_open = rtl8139_open,
+ .ndo_stop = rtl8139_close,
+ .ndo_get_stats = rtl8139_get_stats,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = rtl8139_set_mac_address,
+ .ndo_start_xmit = rtl8139_start_xmit,
+ .ndo_set_multicast_list = rtl8139_set_rx_mode,
+ .ndo_do_ioctl = netdev_ioctl,
+ .ndo_tx_timeout = rtl8139_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = rtl8139_poll_controller,
+#endif
+};
+
+static int __devinit rtl8139_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *dev = NULL;
+ struct rtl8139_private *tp;
+ int i, addr_len, option;
+ void __iomem *ioaddr;
+ static int board_idx = -1;
+
+ assert (pdev != NULL);
+ assert (ent != NULL);
+
+ board_idx++;
+
+ /* when we're built into the kernel, the driver version message
+ * is only printed if at least one 8139 board has been found
+ */
+#ifndef MODULE
+ {
+ static int printed_version;
+ if (!printed_version++)
+ pr_info(RTL8139_DRIVER_NAME "\n");
+ }
+#endif
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) {
+ dev_info(&pdev->dev,
+ "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n",
+ pdev->vendor, pdev->device, pdev->revision);
+ return -ENODEV;
+ }
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 &&
+ pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS &&
+ pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) {
+ pr_info("OQO Model 2 detected. Forcing PIO\n");
+ use_io = 1;
+ }
+
+ dev = rtl8139_init_board (pdev);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ assert (dev != NULL);
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+
+ ioaddr = tp->mmio_addr;
+ assert (ioaddr != NULL);
+
+ addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
+ for (i = 0; i < 3; i++)
+ ((__le16 *) (dev->dev_addr))[i] =
+ cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len));
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+ /* The Rtl8139-specific entries in the device structure. */
+ dev->netdev_ops = &rtl8139_netdev_ops;
+ dev->ethtool_ops = &rtl8139_ethtool_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+ netif_napi_add(dev, &tp->napi, rtl8139_poll, 64);
+
+ /* note: the hardware is not capable of sg/csum/highdma, however
+ * through the use of skb_copy_and_csum_dev we enable these
+ * features
+ */
+ dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
+ dev->vlan_features = dev->features;
+
+ dev->irq = pdev->irq;
+
+ /* tp zeroed and aligned in alloc_etherdev */
+ tp = netdev_priv(dev);
+
+ /* note: tp->chipset set in rtl8139_init_board */
+ tp->drv_flags = board_info[ent->driver_data].hw_flags;
+ tp->mmio_addr = ioaddr;
+ tp->msg_enable =
+ (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1));
+ spin_lock_init (&tp->lock);
+ spin_lock_init (&tp->rx_lock);
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
+ tp->mii.dev = dev;
+ tp->mii.mdio_read = mdio_read;
+ tp->mii.mdio_write = mdio_write;
+ tp->mii.phy_id_mask = 0x3f;
+ tp->mii.reg_num_mask = 0x1f;
+
+ /* dev is fully set up and ready to use now */
+ pr_debug("about to register device named %s (%p)...\n",
+ dev->name, dev);
+ i = register_netdev (dev);
+ if (i) goto err_out;
+
+ pci_set_drvdata (pdev, dev);
+
+ netdev_info(dev, "%s at 0x%lx, %pM, IRQ %d\n",
+ board_info[ent->driver_data].name,
+ dev->base_addr, dev->dev_addr, dev->irq);
+
+ netdev_dbg(dev, "Identified 8139 chip type '%s'\n",
+ rtl_chip_info[tp->chipset].name);
+
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs later, but
+ takes too much time. */
+#ifdef CONFIG_8139TOO_8129
+ if (tp->drv_flags & HAS_MII_XCVR) {
+ int phy, phy_idx = 0;
+ for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
+ int mii_status = mdio_read(dev, phy, 1);
+ if (mii_status != 0xffff && mii_status != 0x0000) {
+ u16 advertising = mdio_read(dev, phy, 4);
+ tp->phys[phy_idx++] = phy;
+ netdev_info(dev, "MII transceiver %d status 0x%04x advertising %04x\n",
+ phy, mii_status, advertising);
+ }
+ }
+ if (phy_idx == 0) {
+ netdev_info(dev, "No MII transceivers found! Assuming SYM transceiver\n");
+ tp->phys[0] = 32;
+ }
+ } else
+#endif
+ tp->phys[0] = 32;
+ tp->mii.phy_id = tp->phys[0];
+
+ /* The lower four bits are the media type. */
+ option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
+ if (option > 0) {
+ tp->mii.full_duplex = (option & 0x210) ? 1 : 0;
+ tp->default_port = option & 0xFF;
+ if (tp->default_port)
+ tp->mii.force_media = 1;
+ }
+ if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
+ tp->mii.full_duplex = full_duplex[board_idx];
+ if (tp->mii.full_duplex) {
+ netdev_info(dev, "Media type forced to Full Duplex\n");
+ /* Changing the MII-advertised media because might prevent
+ re-connection. */
+ tp->mii.force_media = 1;
+ }
+ if (tp->default_port) {
+ netdev_info(dev, " Forcing %dMbps %s-duplex operation\n",
+ (option & 0x20 ? 100 : 10),
+ (option & 0x10 ? "full" : "half"));
+ mdio_write(dev, tp->phys[0], 0,
+ ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
+ ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
+ }
+
+ /* Put the chip into low-power mode. */
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
+
+ return 0;
+
+err_out:
+ __rtl8139_cleanup_dev (dev);
+ pci_disable_device (pdev);
+ return i;
+}
+
+
+static void __devexit rtl8139_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ assert (dev != NULL);
+
+ cancel_delayed_work_sync(&tp->thread);
+
+ unregister_netdev (dev);
+
+ __rtl8139_cleanup_dev (dev);
+ pci_disable_device (pdev);
+}
+
+
+/* Serial EEPROM section. */
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x08 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
+#define EE_WRITE_0 0x00
+#define EE_WRITE_1 0x02
+#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
+#define EE_ENB (0x80 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+ */
+
+#define eeprom_delay() (void)RTL_R32(Cfg9346)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD (5)
+#define EE_READ_CMD (6)
+#define EE_ERASE_CMD (7)
+
+static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len)
+{
+ int i;
+ unsigned retval = 0;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ RTL_W8 (Cfg9346, EE_ENB & ~EE_CS);
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+
+ /* Shift the read command bits out. */
+ for (i = 4 + addr_len; i >= 0; i--) {
+ int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ RTL_W8 (Cfg9346, EE_ENB | dataval);
+ eeprom_delay ();
+ RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK);
+ eeprom_delay ();
+ }
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+
+ for (i = 16; i > 0; i--) {
+ RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK);
+ eeprom_delay ();
+ retval =
+ (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 :
+ 0);
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+ }
+
+ /* Terminate the EEPROM access. */
+ RTL_W8 (Cfg9346, ~EE_CS);
+ eeprom_delay ();
+
+ return retval;
+}
+
+/* MII serial management: mostly bogus for now. */
+/* Read and write the MII management registers using software-generated
+ serial MDIO protocol.
+ The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues. */
+#define MDIO_DIR 0x80
+#define MDIO_DATA_OUT 0x04
+#define MDIO_DATA_IN 0x02
+#define MDIO_CLK 0x01
+#define MDIO_WRITE0 (MDIO_DIR)
+#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
+
+#define mdio_delay() RTL_R8(Config4)
+
+
+static const char mii_2_8139_map[8] = {
+ BasicModeCtrl,
+ BasicModeStatus,
+ 0,
+ 0,
+ NWayAdvert,
+ NWayLPAR,
+ NWayExpansion,
+ 0
+};
+
+
+#ifdef CONFIG_8139TOO_8129
+/* Syncronize the MII management interface by shifting 32 one bits out. */
+static void mdio_sync (void __iomem *ioaddr)
+{
+ int i;
+
+ for (i = 32; i >= 0; i--) {
+ RTL_W8 (Config4, MDIO_WRITE1);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK);
+ mdio_delay ();
+ }
+}
+#endif
+
+static int mdio_read (struct net_device *dev, int phy_id, int location)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int retval = 0;
+#ifdef CONFIG_8139TOO_8129
+ void __iomem *ioaddr = tp->mmio_addr;
+ int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ int i;
+#endif
+
+ if (phy_id > 31) { /* Really a 8139. Use internal registers. */
+ void __iomem *ioaddr = tp->mmio_addr;
+ return location < 8 && mii_2_8139_map[location] ?
+ RTL_R16 (mii_2_8139_map[location]) : 0;
+ }
+
+#ifdef CONFIG_8139TOO_8129
+ mdio_sync (ioaddr);
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
+
+ RTL_W8 (Config4, MDIO_DIR | dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK);
+ mdio_delay ();
+ }
+
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 19; i > 0; i--) {
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0);
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
+ }
+#endif
+
+ return (retval >> 1) & 0xffff;
+}
+
+
+static void mdio_write (struct net_device *dev, int phy_id, int location,
+ int value)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+#ifdef CONFIG_8139TOO_8129
+ void __iomem *ioaddr = tp->mmio_addr;
+ int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
+ int i;
+#endif
+
+ if (phy_id > 31) { /* Really a 8139. Use internal registers. */
+ void __iomem *ioaddr = tp->mmio_addr;
+ if (location == 0) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W16 (BasicModeCtrl, value);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ } else if (location < 8 && mii_2_8139_map[location])
+ RTL_W16 (mii_2_8139_map[location], value);
+ return;
+ }
+
+#ifdef CONFIG_8139TOO_8129
+ mdio_sync (ioaddr);
+
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval =
+ (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
+ RTL_W8 (Config4, dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, dataval | MDIO_CLK);
+ mdio_delay ();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
+ }
+#endif
+}
+
+
+static int rtl8139_open (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int retval;
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
+ if (retval)
+ return retval;
+
+ tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ &tp->tx_bufs_dma, GFP_KERNEL);
+ tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ &tp->rx_ring_dma, GFP_KERNEL);
+ if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
+ free_irq(dev->irq, dev);
+
+ if (tp->tx_bufs)
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ tp->tx_bufs, tp->tx_bufs_dma);
+ if (tp->rx_ring)
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ tp->rx_ring, tp->rx_ring_dma);
+
+ return -ENOMEM;
+
+ }
+
+ napi_enable(&tp->napi);
+
+ tp->mii.full_duplex = tp->mii.force_media;
+ tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
+
+ rtl8139_init_ring (dev);
+ rtl8139_hw_start (dev);
+ netif_start_queue (dev);
+
+ netif_dbg(tp, ifup, dev,
+ "%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n",
+ __func__,
+ (unsigned long long)pci_resource_start (tp->pci_dev, 1),
+ dev->irq, RTL_R8 (MediaStatus),
+ tp->mii.full_duplex ? "full" : "half");
+
+ rtl8139_start_thread(tp);
+
+ return 0;
+}
+
+
+static void rtl_check_media (struct net_device *dev, unsigned int init_media)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ if (tp->phys[0] >= 0) {
+ mii_check_media(&tp->mii, netif_msg_link(tp), init_media);
+ }
+}
+
+/* Start the hardware at open or resume. */
+static void rtl8139_hw_start (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 i;
+ u8 tmp;
+
+ /* Bring old chips out of low-power mode. */
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'R');
+
+ rtl8139_chip_reset (ioaddr);
+
+ /* unlock Config[01234] and BMCR register writes */
+ RTL_W8_F (Cfg9346, Cfg9346_Unlock);
+ /* Restore our idea of the MAC address. */
+ RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4)));
+
+ tp->cur_rx = 0;
+
+ /* init Rx ring buffer DMA address */
+ RTL_W32_F (RxBuf, tp->rx_ring_dma);
+
+ /* Must enable Tx/Rx before setting transfer thresholds! */
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
+ RTL_W32 (RxConfig, tp->rx_config);
+ RTL_W32 (TxConfig, rtl8139_tx_config);
+
+ rtl_check_media (dev, 1);
+
+ if (tp->chipset >= CH_8139B) {
+ /* Disable magic packet scanning, which is enabled
+ * when PM is enabled in Config1. It can be reenabled
+ * via ETHTOOL_SWOL if desired. */
+ RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
+ }
+
+ netdev_dbg(dev, "init buffer addresses\n");
+
+ /* Lock Config[01234] and BMCR register writes */
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ /* init Tx buffer DMA addresses */
+ for (i = 0; i < NUM_TX_DESC; i++)
+ RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
+
+ RTL_W32 (RxMissed, 0);
+
+ rtl8139_set_rx_mode (dev);
+
+ /* no early-rx interrupts */
+ RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
+
+ /* make sure RxTx has started */
+ tmp = RTL_R8 (ChipCmd);
+ if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ /* Enable all known interrupts by setting the interrupt mask. */
+ RTL_W16 (IntrMask, rtl8139_intr_mask);
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void rtl8139_init_ring (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int i;
+
+ tp->cur_rx = 0;
+ tp->cur_tx = 0;
+ tp->dirty_tx = 0;
+
+ for (i = 0; i < NUM_TX_DESC; i++)
+ tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
+}
+
+
+/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */
+static int next_tick = 3 * HZ;
+
+#ifndef CONFIG_8139TOO_TUNE_TWISTER
+static inline void rtl8139_tune_twister (struct net_device *dev,
+ struct rtl8139_private *tp) {}
+#else
+enum TwisterParamVals {
+ PARA78_default = 0x78fa8388,
+ PARA7c_default = 0xcb38de43, /* param[0][3] */
+ PARA7c_xxx = 0xcb38de43,
+};
+
+static const unsigned long param[4][4] = {
+ {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
+ {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
+ {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
+ {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
+};
+
+static void rtl8139_tune_twister (struct net_device *dev,
+ struct rtl8139_private *tp)
+{
+ int linkcase;
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ /* This is a complicated state machine to configure the "twister" for
+ impedance/echos based on the cable length.
+ All of this is magic and undocumented.
+ */
+ switch (tp->twistie) {
+ case 1:
+ if (RTL_R16 (CSCR) & CSCR_LinkOKBit) {
+ /* We have link beat, let us tune the twister. */
+ RTL_W16 (CSCR, CSCR_LinkDownOffCmd);
+ tp->twistie = 2; /* Change to state 2. */
+ next_tick = HZ / 10;
+ } else {
+ /* Just put in some reasonable defaults for when beat returns. */
+ RTL_W16 (CSCR, CSCR_LinkDownCmd);
+ RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */
+ RTL_W32 (PARA78, PARA78_default);
+ RTL_W32 (PARA7c, PARA7c_default);
+ tp->twistie = 0; /* Bail from future actions. */
+ }
+ break;
+ case 2:
+ /* Read how long it took to hear the echo. */
+ linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits;
+ if (linkcase == 0x7000)
+ tp->twist_row = 3;
+ else if (linkcase == 0x3000)
+ tp->twist_row = 2;
+ else if (linkcase == 0x1000)
+ tp->twist_row = 1;
+ else
+ tp->twist_row = 0;
+ tp->twist_col = 0;
+ tp->twistie = 3; /* Change to state 2. */
+ next_tick = HZ / 10;
+ break;
+ case 3:
+ /* Put out four tuning parameters, one per 100msec. */
+ if (tp->twist_col == 0)
+ RTL_W16 (FIFOTMS, 0);
+ RTL_W32 (PARA7c, param[(int) tp->twist_row]
+ [(int) tp->twist_col]);
+ next_tick = HZ / 10;
+ if (++tp->twist_col >= 4) {
+ /* For short cables we are done.
+ For long cables (row == 3) check for mistune. */
+ tp->twistie =
+ (tp->twist_row == 3) ? 4 : 0;
+ }
+ break;
+ case 4:
+ /* Special case for long cables: check for mistune. */
+ if ((RTL_R16 (CSCR) &
+ CSCR_LinkStatusBits) == 0x7000) {
+ tp->twistie = 0;
+ break;
+ } else {
+ RTL_W32 (PARA7c, 0xfb38de03);
+ tp->twistie = 5;
+ next_tick = HZ / 10;
+ }
+ break;
+ case 5:
+ /* Retune for shorter cable (column 2). */
+ RTL_W32 (FIFOTMS, 0x20);
+ RTL_W32 (PARA78, PARA78_default);
+ RTL_W32 (PARA7c, PARA7c_default);
+ RTL_W32 (FIFOTMS, 0x00);
+ tp->twist_row = 2;
+ tp->twist_col = 0;
+ tp->twistie = 3;
+ next_tick = HZ / 10;
+ break;
+
+ default:
+ /* do nothing */
+ break;
+ }
+}
+#endif /* CONFIG_8139TOO_TUNE_TWISTER */
+
+static inline void rtl8139_thread_iter (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr)
+{
+ int mii_lpa;
+
+ mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
+
+ if (!tp->mii.force_media && mii_lpa != 0xffff) {
+ int duplex = ((mii_lpa & LPA_100FULL) ||
+ (mii_lpa & 0x01C0) == 0x0040);
+ if (tp->mii.full_duplex != duplex) {
+ tp->mii.full_duplex = duplex;
+
+ if (mii_lpa) {
+ netdev_info(dev, "Setting %s-duplex based on MII #%d link partner ability of %04x\n",
+ tp->mii.full_duplex ? "full" : "half",
+ tp->phys[0], mii_lpa);
+ } else {
+ netdev_info(dev, "media is unconnected, link down, or incompatible connection\n");
+ }
+#if 0
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+#endif
+ }
+ }
+
+ next_tick = HZ * 60;
+
+ rtl8139_tune_twister (dev, tp);
+
+ netdev_dbg(dev, "Media selection tick, Link partner %04x\n",
+ RTL_R16(NWayLPAR));
+ netdev_dbg(dev, "Other registers are IntMask %04x IntStatus %04x\n",
+ RTL_R16(IntrMask), RTL_R16(IntrStatus));
+ netdev_dbg(dev, "Chip config %02x %02x\n",
+ RTL_R8(Config0), RTL_R8(Config1));
+}
+
+static void rtl8139_thread (struct work_struct *work)
+{
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
+ unsigned long thr_delay = next_tick;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ if (tp->watchdog_fired) {
+ tp->watchdog_fired = 0;
+ rtl8139_tx_timeout_task(work);
+ } else
+ rtl8139_thread_iter(dev, tp, tp->mmio_addr);
+
+ if (tp->have_thread)
+ schedule_delayed_work(&tp->thread, thr_delay);
+out_unlock:
+ rtnl_unlock ();
+}
+
+static void rtl8139_start_thread(struct rtl8139_private *tp)
+{
+ tp->twistie = 0;
+ if (tp->chipset == CH_8139_K)
+ tp->twistie = 1;
+ else if (tp->drv_flags & HAS_LNK_CHNG)
+ return;
+
+ tp->have_thread = 1;
+ tp->watchdog_fired = 0;
+
+ schedule_delayed_work(&tp->thread, next_tick);
+}
+
+static inline void rtl8139_tx_clear (struct rtl8139_private *tp)
+{
+ tp->cur_tx = 0;
+ tp->dirty_tx = 0;
+
+ /* XXX account for unsent Tx packets in tp->stats.tx_dropped */
+}
+
+static void rtl8139_tx_timeout_task (struct work_struct *work)
+{
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+ u8 tmp8;
+
+ netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n",
+ RTL_R8(ChipCmd), RTL_R16(IntrStatus),
+ RTL_R16(IntrMask), RTL_R8(MediaStatus));
+ /* Emit info to figure out what went wrong. */
+ netdev_dbg(dev, "Tx queue start entry %ld dirty entry %ld\n",
+ tp->cur_tx, tp->dirty_tx);
+ for (i = 0; i < NUM_TX_DESC; i++)
+ netdev_dbg(dev, "Tx descriptor %d is %08x%s\n",
+ i, RTL_R32(TxStatus0 + (i * 4)),
+ i == tp->dirty_tx % NUM_TX_DESC ?
+ " (queue head)" : "");
+
+ tp->xstats.tx_timeouts++;
+
+ /* disable Tx ASAP, if not already */
+ tmp8 = RTL_R8 (ChipCmd);
+ if (tmp8 & CmdTxEnb)
+ RTL_W8 (ChipCmd, CmdRxEnb);
+
+ spin_lock_bh(&tp->rx_lock);
+ /* Disable interrupts by clearing the interrupt mask. */
+ RTL_W16 (IntrMask, 0x0000);
+
+ /* Stop a shared interrupt from scavenging while we are. */
+ spin_lock_irq(&tp->lock);
+ rtl8139_tx_clear (tp);
+ spin_unlock_irq(&tp->lock);
+
+ /* ...and finally, reset everything */
+ if (netif_running(dev)) {
+ rtl8139_hw_start (dev);
+ netif_wake_queue (dev);
+ }
+ spin_unlock_bh(&tp->rx_lock);
+}
+
+static void rtl8139_tx_timeout (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ tp->watchdog_fired = 1;
+ if (!tp->have_thread) {
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
+ schedule_delayed_work(&tp->thread, next_tick);
+ }
+}
+
+static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int entry;
+ unsigned int len = skb->len;
+ unsigned long flags;
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = tp->cur_tx % NUM_TX_DESC;
+
+ /* Note: the chip doesn't have auto-pad! */
+ if (likely(len < TX_BUF_SIZE)) {
+ if (len < ETH_ZLEN)
+ memset(tp->tx_buf[entry], 0, ETH_ZLEN);
+ skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
+ dev_kfree_skb(skb);
+ } else {
+ dev_kfree_skb(skb);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+ /*
+ * Writing to TxStatus triggers a DMA transfer of the data
+ * copied to tp->tx_buf[entry] above. Use a memory barrier
+ * to make sure that the device sees the updated data.
+ */
+ wmb();
+ RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
+ tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
+
+ tp->cur_tx++;
+
+ if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
+ netif_stop_queue (dev);
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ netif_dbg(tp, tx_queued, dev, "Queued Tx packet size %u to slot %d\n",
+ len, entry);
+
+ return NETDEV_TX_OK;
+}
+
+
+static void rtl8139_tx_interrupt (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned long dirty_tx, tx_left;
+
+ assert (dev != NULL);
+ assert (ioaddr != NULL);
+
+ dirty_tx = tp->dirty_tx;
+ tx_left = tp->cur_tx - dirty_tx;
+ while (tx_left > 0) {
+ int entry = dirty_tx % NUM_TX_DESC;
+ int txstatus;
+
+ txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
+
+ if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
+ break; /* It still hasn't been Txed */
+
+ /* Note: TxCarrierLost is always asserted at 100mbps. */
+ if (txstatus & (TxOutOfWindow | TxAborted)) {
+ /* There was an major error, log it. */
+ netif_dbg(tp, tx_err, dev, "Transmit error, Tx status %08x\n",
+ txstatus);
+ dev->stats.tx_errors++;
+ if (txstatus & TxAborted) {
+ dev->stats.tx_aborted_errors++;
+ RTL_W32 (TxConfig, TxClearAbt);
+ RTL_W16 (IntrStatus, TxErr);
+ wmb();
+ }
+ if (txstatus & TxCarrierLost)
+ dev->stats.tx_carrier_errors++;
+ if (txstatus & TxOutOfWindow)
+ dev->stats.tx_window_errors++;
+ } else {
+ if (txstatus & TxUnderrun) {
+ /* Add 64 to the Tx FIFO threshold. */
+ if (tp->tx_flag < 0x00300000)
+ tp->tx_flag += 0x00020000;
+ dev->stats.tx_fifo_errors++;
+ }
+ dev->stats.collisions += (txstatus >> 24) & 15;
+ dev->stats.tx_bytes += txstatus & 0x7ff;
+ dev->stats.tx_packets++;
+ }
+
+ dirty_tx++;
+ tx_left--;
+ }
+
+#ifndef RTL8139_NDEBUG
+ if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
+ netdev_err(dev, "Out-of-sync dirty pointer, %ld vs. %ld\n",
+ dirty_tx, tp->cur_tx);
+ dirty_tx += NUM_TX_DESC;
+ }
+#endif /* RTL8139_NDEBUG */
+
+ /* only wake the queue if we did work, and the queue is stopped */
+ if (tp->dirty_tx != dirty_tx) {
+ tp->dirty_tx = dirty_tx;
+ mb();
+ netif_wake_queue (dev);
+ }
+}
+
+
+/* TODO: clean this up! Rx reset need not be this intensive */
+static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
+ struct rtl8139_private *tp, void __iomem *ioaddr)
+{
+ u8 tmp8;
+#ifdef CONFIG_8139_OLD_RX_RESET
+ int tmp_work;
+#endif
+
+ netif_dbg(tp, rx_err, dev, "Ethernet frame had errors, status %08x\n",
+ rx_status);
+ dev->stats.rx_errors++;
+ if (!(rx_status & RxStatusOK)) {
+ if (rx_status & RxTooLong) {
+ netdev_dbg(dev, "Oversized Ethernet frame, status %04x!\n",
+ rx_status);
+ /* A.C.: The chip hangs here. */
+ }
+ if (rx_status & (RxBadSymbol | RxBadAlign))
+ dev->stats.rx_frame_errors++;
+ if (rx_status & (RxRunt | RxTooLong))
+ dev->stats.rx_length_errors++;
+ if (rx_status & RxCRCErr)
+ dev->stats.rx_crc_errors++;
+ } else {
+ tp->xstats.rx_lost_in_ring++;
+ }
+
+#ifndef CONFIG_8139_OLD_RX_RESET
+ tmp8 = RTL_R8 (ChipCmd);
+ RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb);
+ RTL_W8 (ChipCmd, tmp8);
+ RTL_W32 (RxConfig, tp->rx_config);
+ tp->cur_rx = 0;
+#else
+ /* Reset the receiver, based on RealTek recommendation. (Bug?) */
+
+ /* disable receive */
+ RTL_W8_F (ChipCmd, CmdTxEnb);
+ tmp_work = 200;
+ while (--tmp_work > 0) {
+ udelay(1);
+ tmp8 = RTL_R8 (ChipCmd);
+ if (!(tmp8 & CmdRxEnb))
+ break;
+ }
+ if (tmp_work <= 0)
+ netdev_warn(dev, "rx stop wait too long\n");
+ /* restart receive */
+ tmp_work = 200;
+ while (--tmp_work > 0) {
+ RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
+ udelay(1);
+ tmp8 = RTL_R8 (ChipCmd);
+ if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
+ break;
+ }
+ if (tmp_work <= 0)
+ netdev_warn(dev, "tx/rx enable wait too long\n");
+
+ /* and reinitialize all rx related registers */
+ RTL_W8_F (Cfg9346, Cfg9346_Unlock);
+ /* Must enable Tx/Rx before setting transfer thresholds! */
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
+ RTL_W32 (RxConfig, tp->rx_config);
+ tp->cur_rx = 0;
+
+ netdev_dbg(dev, "init buffer addresses\n");
+
+ /* Lock Config[01234] and BMCR register writes */
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ /* init Rx ring buffer DMA address */
+ RTL_W32_F (RxBuf, tp->rx_ring_dma);
+
+ /* A.C.: Reset the multicast list. */
+ __set_rx_mode (dev);
+#endif
+}
+
+#if RX_BUF_IDX == 3
+static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring,
+ u32 offset, unsigned int size)
+{
+ u32 left = RX_BUF_LEN - offset;
+
+ if (size > left) {
+ skb_copy_to_linear_data(skb, ring + offset, left);
+ skb_copy_to_linear_data_offset(skb, left, ring, size - left);
+ } else
+ skb_copy_to_linear_data(skb, ring + offset, size);
+}
+#endif
+
+static void rtl8139_isr_ack(struct rtl8139_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 status;
+
+ status = RTL_R16 (IntrStatus) & RxAckBits;
+
+ /* Clear out errors and receive interrupts */
+ if (likely(status != 0)) {
+ if (unlikely(status & (RxFIFOOver | RxOverflow))) {
+ tp->dev->stats.rx_errors++;
+ if (status & RxFIFOOver)
+ tp->dev->stats.rx_fifo_errors++;
+ }
+ RTL_W16_F (IntrStatus, RxAckBits);
+ }
+}
+
+static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
+ int budget)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int received = 0;
+ unsigned char *rx_ring = tp->rx_ring;
+ unsigned int cur_rx = tp->cur_rx;
+ unsigned int rx_size = 0;
+
+ netdev_dbg(dev, "In %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
+ __func__, (u16)cur_rx,
+ RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
+
+ while (netif_running(dev) && received < budget &&
+ (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
+ u32 ring_offset = cur_rx % RX_BUF_LEN;
+ u32 rx_status;
+ unsigned int pkt_size;
+ struct sk_buff *skb;
+
+ rmb();
+
+ /* read size+status of next frame from DMA ring buffer */
+ rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset));
+ rx_size = rx_status >> 16;
+ pkt_size = rx_size - 4;
+
+ netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",
+ __func__, rx_status, rx_size, cur_rx);
+#if RTL8139_DEBUG > 2
+ print_hex_dump(KERN_DEBUG, "Frame contents: ",
+ DUMP_PREFIX_OFFSET, 16, 1,
+ &rx_ring[ring_offset], 70, true);
+#endif
+
+ /* Packet copy from FIFO still in progress.
+ * Theoretically, this should never happen
+ * since EarlyRx is disabled.
+ */
+ if (unlikely(rx_size == 0xfff0)) {
+ if (!tp->fifo_copy_timeout)
+ tp->fifo_copy_timeout = jiffies + 2;
+ else if (time_after(jiffies, tp->fifo_copy_timeout)) {
+ netdev_dbg(dev, "hung FIFO. Reset\n");
+ rx_size = 0;
+ goto no_early_rx;
+ }
+ netif_dbg(tp, intr, dev, "fifo copy in progress\n");
+ tp->xstats.early_rx++;
+ break;
+ }
+
+no_early_rx:
+ tp->fifo_copy_timeout = 0;
+
+ /* If Rx err or invalid rx_size/rx_status received
+ * (which happens if we get lost in the ring),
+ * Rx process gets reset, so we abort any further
+ * Rx processing.
+ */
+ if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
+ (rx_size < 8) ||
+ (!(rx_status & RxStatusOK)))) {
+ rtl8139_rx_err (rx_status, dev, tp, ioaddr);
+ received = -1;
+ goto out;
+ }
+
+ /* Malloc up new buffer, compatible with net-2e. */
+ /* Omit the four octet CRC from the length. */
+
+ skb = netdev_alloc_skb_ip_align(dev, pkt_size);
+ if (likely(skb)) {
+#if RX_BUF_IDX == 3
+ wrap_copy(skb, rx_ring, ring_offset+4, pkt_size);
+#else
+ skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size);
+#endif
+ skb_put (skb, pkt_size);
+
+ skb->protocol = eth_type_trans (skb, dev);
+
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
+
+ netif_receive_skb (skb);
+ } else {
+ if (net_ratelimit())
+ netdev_warn(dev, "Memory squeeze, dropping packet\n");
+ dev->stats.rx_dropped++;
+ }
+ received++;
+
+ cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
+ RTL_W16 (RxBufPtr, (u16) (cur_rx - 16));
+
+ rtl8139_isr_ack(tp);
+ }
+
+ if (unlikely(!received || rx_size == 0xfff0))
+ rtl8139_isr_ack(tp);
+
+ netdev_dbg(dev, "Done %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
+ __func__, cur_rx,
+ RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
+
+ tp->cur_rx = cur_rx;
+
+ /*
+ * The receive buffer should be mostly empty.
+ * Tell NAPI to reenable the Rx irq.
+ */
+ if (tp->fifo_copy_timeout)
+ received = budget;
+
+out:
+ return received;
+}
+
+
+static void rtl8139_weird_interrupt (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr,
+ int status, int link_changed)
+{
+ netdev_dbg(dev, "Abnormal interrupt, status %08x\n", status);
+
+ assert (dev != NULL);
+ assert (tp != NULL);
+ assert (ioaddr != NULL);
+
+ /* Update the error count. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ if ((status & RxUnderrun) && link_changed &&
+ (tp->drv_flags & HAS_LNK_CHNG)) {
+ rtl_check_media(dev, 0);
+ status &= ~RxUnderrun;
+ }
+
+ if (status & (RxUnderrun | RxErr))
+ dev->stats.rx_errors++;
+
+ if (status & PCSTimeout)
+ dev->stats.rx_length_errors++;
+ if (status & RxUnderrun)
+ dev->stats.rx_fifo_errors++;
+ if (status & PCIErr) {
+ u16 pci_cmd_status;
+ pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
+ pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
+
+ netdev_err(dev, "PCI Bus error %04x\n", pci_cmd_status);
+ }
+}
+
+static int rtl8139_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi);
+ struct net_device *dev = tp->dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int work_done;
+
+ spin_lock(&tp->rx_lock);
+ work_done = 0;
+ if (likely(RTL_R16(IntrStatus) & RxAckBits))
+ work_done += rtl8139_rx(dev, tp, budget);
+
+ if (work_done < budget) {
+ unsigned long flags;
+ /*
+ * Order is important since data can get interrupted
+ * again when we think we are done.
+ */
+ spin_lock_irqsave(&tp->lock, flags);
+ __napi_complete(napi);
+ RTL_W16_F(IntrMask, rtl8139_intr_mask);
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+ spin_unlock(&tp->rx_lock);
+
+ return work_done;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
+{
+ struct net_device *dev = (struct net_device *) dev_instance;
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 status, ackstat;
+ int link_changed = 0; /* avoid bogus "uninit" warning */
+ int handled = 0;
+
+ spin_lock (&tp->lock);
+ status = RTL_R16 (IntrStatus);
+
+ /* shared irq? */
+ if (unlikely((status & rtl8139_intr_mask) == 0))
+ goto out;
+
+ handled = 1;
+
+ /* h/w no longer present (hotplug?) or major error, bail */
+ if (unlikely(status == 0xFFFF))
+ goto out;
+
+ /* close possible race's with dev_close */
+ if (unlikely(!netif_running(dev))) {
+ RTL_W16 (IntrMask, 0);
+ goto out;
+ }
+
+ /* Acknowledge all of the current interrupt sources ASAP, but
+ an first get an additional status bit from CSCR. */
+ if (unlikely(status & RxUnderrun))
+ link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
+
+ ackstat = status & ~(RxAckBits | TxErr);
+ if (ackstat)
+ RTL_W16 (IntrStatus, ackstat);
+
+ /* Receive packets are processed by poll routine.
+ If not running start it now. */
+ if (status & RxAckBits){
+ if (napi_schedule_prep(&tp->napi)) {
+ RTL_W16_F (IntrMask, rtl8139_norx_intr_mask);
+ __napi_schedule(&tp->napi);
+ }
+ }
+
+ /* Check uncommon events with one test. */
+ if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr)))
+ rtl8139_weird_interrupt (dev, tp, ioaddr,
+ status, link_changed);
+
+ if (status & (TxOK | TxErr)) {
+ rtl8139_tx_interrupt (dev, tp, ioaddr);
+ if (status & TxErr)
+ RTL_W16 (IntrStatus, TxErr);
+ }
+ out:
+ spin_unlock (&tp->lock);
+
+ netdev_dbg(dev, "exiting interrupt, intr_status=%#4.4x\n",
+ RTL_R16(IntrStatus));
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void rtl8139_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ rtl8139_interrupt(dev->irq, dev);
+ enable_irq(dev->irq);
+}
+#endif
+
+static int rtl8139_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8_F(Cfg9346, Cfg9346_Unlock);
+ RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
+ RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
+ RTL_W8_F(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static int rtl8139_close (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ netif_stop_queue(dev);
+ napi_disable(&tp->napi);
+
+ netif_dbg(tp, ifdown, dev, "Shutting down ethercard, status was 0x%04x\n",
+ RTL_R16(IntrStatus));
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ /* Stop the chip's Tx and Rx DMA processes. */
+ RTL_W8 (ChipCmd, 0);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ RTL_W16 (IntrMask, 0);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+
+ free_irq (dev->irq, dev);
+
+ rtl8139_tx_clear (tp);
+
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ tp->rx_ring, tp->rx_ring_dma);
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ tp->tx_bufs, tp->tx_bufs_dma);
+ tp->rx_ring = NULL;
+ tp->tx_bufs = NULL;
+
+ /* Green! Put the chip in low-power mode. */
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
+
+ return 0;
+}
+
+
+/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
+ kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
+ other threads or interrupts aren't messing with the 8139. */
+static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ spin_lock_irq(&tp->lock);
+ if (rtl_chip_info[tp->chipset].flags & HasLWake) {
+ u8 cfg3 = RTL_R8 (Config3);
+ u8 cfg5 = RTL_R8 (Config5);
+
+ wol->supported = WAKE_PHY | WAKE_MAGIC
+ | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
+
+ wol->wolopts = 0;
+ if (cfg3 & Cfg3_LinkUp)
+ wol->wolopts |= WAKE_PHY;
+ if (cfg3 & Cfg3_Magic)
+ wol->wolopts |= WAKE_MAGIC;
+ /* (KON)FIXME: See how netdev_set_wol() handles the
+ following constants. */
+ if (cfg5 & Cfg5_UWF)
+ wol->wolopts |= WAKE_UCAST;
+ if (cfg5 & Cfg5_MWF)
+ wol->wolopts |= WAKE_MCAST;
+ if (cfg5 & Cfg5_BWF)
+ wol->wolopts |= WAKE_BCAST;
+ }
+ spin_unlock_irq(&tp->lock);
+}
+
+
+/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
+ that wol points to kernel memory and other threads or interrupts
+ aren't messing with the 8139. */
+static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 support;
+ u8 cfg3, cfg5;
+
+ support = ((rtl_chip_info[tp->chipset].flags & HasLWake)
+ ? (WAKE_PHY | WAKE_MAGIC
+ | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
+ : 0);
+ if (wol->wolopts & ~support)
+ return -EINVAL;
+
+ spin_lock_irq(&tp->lock);
+ cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
+ if (wol->wolopts & WAKE_PHY)
+ cfg3 |= Cfg3_LinkUp;
+ if (wol->wolopts & WAKE_MAGIC)
+ cfg3 |= Cfg3_Magic;
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config3, cfg3);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
+ /* (KON)FIXME: These are untested. We may have to set the
+ CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
+ documentation. */
+ if (wol->wolopts & WAKE_UCAST)
+ cfg5 |= Cfg5_UWF;
+ if (wol->wolopts & WAKE_MCAST)
+ cfg5 |= Cfg5_MWF;
+ if (wol->wolopts & WAKE_BCAST)
+ cfg5 |= Cfg5_BWF;
+ RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->bus_info, pci_name(tp->pci_dev));
+ info->regdump_len = tp->regs_len;
+}
+
+static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ spin_lock_irq(&tp->lock);
+ mii_ethtool_gset(&tp->mii, cmd);
+ spin_unlock_irq(&tp->lock);
+ return 0;
+}
+
+static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int rc;
+ spin_lock_irq(&tp->lock);
+ rc = mii_ethtool_sset(&tp->mii, cmd);
+ spin_unlock_irq(&tp->lock);
+ return rc;
+}
+
+static int rtl8139_nway_reset(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return mii_nway_restart(&tp->mii);
+}
+
+static u32 rtl8139_get_link(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return mii_link_ok(&tp->mii);
+}
+
+static u32 rtl8139_get_msglevel(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return tp->msg_enable;
+}
+
+static void rtl8139_set_msglevel(struct net_device *dev, u32 datum)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ tp->msg_enable = datum;
+}
+
+static int rtl8139_get_regs_len(struct net_device *dev)
+{
+ struct rtl8139_private *tp;
+ /* TODO: we are too slack to do reg dumping for pio, for now */
+ if (use_io)
+ return 0;
+ tp = netdev_priv(dev);
+ return tp->regs_len;
+}
+
+static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
+{
+ struct rtl8139_private *tp;
+
+ /* TODO: we are too slack to do reg dumping for pio, for now */
+ if (use_io)
+ return;
+ tp = netdev_priv(dev);
+
+ regs->version = RTL_REGS_VER;
+
+ spin_lock_irq(&tp->lock);
+ memcpy_fromio(regbuf, tp->mmio_addr, regs->len);
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl8139_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return RTL_NUM_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ data[0] = tp->xstats.early_rx;
+ data[1] = tp->xstats.tx_buf_mapped;
+ data[2] = tp->xstats.tx_timeouts;
+ data[3] = tp->xstats.rx_lost_in_ring;
+}
+
+static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
+}
+
+static const struct ethtool_ops rtl8139_ethtool_ops = {
+ .get_drvinfo = rtl8139_get_drvinfo,
+ .get_settings = rtl8139_get_settings,
+ .set_settings = rtl8139_set_settings,
+ .get_regs_len = rtl8139_get_regs_len,
+ .get_regs = rtl8139_get_regs,
+ .nway_reset = rtl8139_nway_reset,
+ .get_link = rtl8139_get_link,
+ .get_msglevel = rtl8139_get_msglevel,
+ .set_msglevel = rtl8139_set_msglevel,
+ .get_wol = rtl8139_get_wol,
+ .set_wol = rtl8139_set_wol,
+ .get_strings = rtl8139_get_strings,
+ .get_sset_count = rtl8139_get_sset_count,
+ .get_ethtool_stats = rtl8139_get_ethtool_stats,
+};
+
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int rc;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irq(&tp->lock);
+ rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL);
+ spin_unlock_irq(&tp->lock);
+
+ return rc;
+}
+
+
+static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ if (netif_running(dev)) {
+ spin_lock_irqsave (&tp->lock, flags);
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+ spin_unlock_irqrestore (&tp->lock, flags);
+ }
+
+ return &dev->stats;
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ This routine is not state sensitive and need not be SMP locked. */
+
+static void __set_rx_mode (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp;
+
+ netdev_dbg(dev, "rtl8139_set_rx_mode(%04x) done -- Rx config %08x\n",
+ dev->flags, RTL_R32(RxConfig));
+
+ /* Note: do not reorder, GCC is clever about common statements. */
+ if (dev->flags & IFF_PROMISC) {
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ /* We can safely update without stopping the chip. */
+ tmp = rtl8139_rx_config | rx_mode;
+ if (tp->rx_config != tmp) {
+ RTL_W32_F (RxConfig, tmp);
+ tp->rx_config = tmp;
+ }
+ RTL_W32_F (MAR0 + 0, mc_filter[0]);
+ RTL_W32_F (MAR0 + 4, mc_filter[1]);
+}
+
+static void rtl8139_set_rx_mode (struct net_device *dev)
+{
+ unsigned long flags;
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ spin_lock_irqsave (&tp->lock, flags);
+ __set_rx_mode(dev);
+ spin_unlock_irqrestore (&tp->lock, flags);
+}
+
+#ifdef CONFIG_PM
+
+static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ pci_save_state (pdev);
+
+ if (!netif_running (dev))
+ return 0;
+
+ netif_device_detach (dev);
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ /* Disable interrupts, stop Tx and Rx. */
+ RTL_W16 (IntrMask, 0);
+ RTL_W8 (ChipCmd, 0);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+
+ pci_set_power_state (pdev, PCI_D3hot);
+
+ return 0;
+}
+
+
+static int rtl8139_resume (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+
+ pci_restore_state (pdev);
+ if (!netif_running (dev))
+ return 0;
+ pci_set_power_state (pdev, PCI_D0);
+ rtl8139_init_ring (dev);
+ rtl8139_hw_start (dev);
+ netif_device_attach (dev);
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+
+static struct pci_driver rtl8139_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = rtl8139_pci_tbl,
+ .probe = rtl8139_init_one,
+ .remove = __devexit_p(rtl8139_remove_one),
+#ifdef CONFIG_PM
+ .suspend = rtl8139_suspend,
+ .resume = rtl8139_resume,
+#endif /* CONFIG_PM */
+};
+
+
+static int __init rtl8139_init_module (void)
+{
+ /* when we're a module, we always print a version message,
+ * even if no 8139 board is found.
+ */
+#ifdef MODULE
+ pr_info(RTL8139_DRIVER_NAME "\n");
+#endif
+
+ return pci_register_driver(&rtl8139_pci_driver);
+}
+
+
+static void __exit rtl8139_cleanup_module (void)
+{
+ pci_unregister_driver (&rtl8139_pci_driver);
+}
+
+
+module_init(rtl8139_init_module);
+module_exit(rtl8139_cleanup_module);
--- /dev/null
+#
+# Realtek device configuration
+#
+
+config NET_VENDOR_REALTEK
+ bool "Realtek devices"
+ depends on PCI || (PARPORT && X86)
+ ---help---
+ If you have a network (Ethernet) card belonging to this class, say Y
+ and read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Realtek devices. If you say Y, you will be asked for
+ your specific card in the following questions.
+
+if NET_VENDOR_REALTEK
+
+config ATP
+ tristate "AT-LAN-TEC/RealTek pocket adapter support"
+ depends on PARPORT && X86
+ select CRC32
+ ---help---
+ This is a network (Ethernet) device which attaches to your parallel
+ port. Read <file:drivers/net/atp.c> as well as the Ethernet-HOWTO,
+ available from <http://www.tldp.org/docs.html#howto>, if you
+ want to use this. If you intend to use this driver, you should have
+ said N to the "Parallel printer support", because the two drivers
+ don't like each other.
+
+ To compile this driver as a module, choose M here: the module
+ will be called atp.
+
+config 8139CP
+ tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support (EXPERIMENTAL)"
+ depends on PCI && EXPERIMENTAL
+ select CRC32
+ select MII
+ ---help---
+ This is a driver for the Fast Ethernet PCI network cards based on
+ the RTL8139C+ chips. If you have one of those, say Y and read
+ the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 8139cp. This is recommended.
+
+config 8139TOO
+ tristate "RealTek RTL-8129/8130/8139 PCI Fast Ethernet Adapter support"
+ depends on PCI
+ select CRC32
+ select MII
+ ---help---
+ This is a driver for the Fast Ethernet PCI network cards based on
+ the RTL 8129/8130/8139 chips. If you have one of those, say Y and
+ read the Ethernet-HOWTO <http://www.tldp.org/docs.html#howto>.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 8139too. This is recommended.
+
+config 8139TOO_PIO
+ bool "Use PIO instead of MMIO"
+ default y
+ depends on 8139TOO
+ ---help---
+ This instructs the driver to use programmed I/O ports (PIO) instead
+ of PCI shared memory (MMIO). This can possibly solve some problems
+ in case your mainboard has memory consistency issues. If unsure,
+ say N.
+
+config 8139TOO_TUNE_TWISTER
+ bool "Support for uncommon RTL-8139 rev. K (automatic channel equalization)"
+ depends on 8139TOO
+ ---help---
+ This implements a function which might come in handy in case you
+ are using low quality on long cabling. It is required for RealTek
+ RTL-8139 revision K boards, and totally unused otherwise. It tries
+ to match the transceiver to the cable characteristics. This is
+ experimental since hardly documented by the manufacturer.
+ If unsure, say Y.
+
+config 8139TOO_8129
+ bool "Support for older RTL-8129/8130 boards"
+ depends on 8139TOO
+ ---help---
+ This enables support for the older and uncommon RTL-8129 and
+ RTL-8130 chips, which support MII via an external transceiver,
+ instead of an internal one. Disabling this option will save some
+ memory by making the code size smaller. If unsure, say Y.
+
+config 8139_OLD_RX_RESET
+ bool "Use older RX-reset method"
+ depends on 8139TOO
+ ---help---
+ The 8139too driver was recently updated to contain a more rapid
+ reset sequence, in the face of severe receive errors. This "new"
+ RX-reset method should be adequate for all boards. But if you
+ experience problems, you can enable this option to restore the
+ old RX-reset behavior. If unsure, say N.
+
+config R8169
+ tristate "Realtek 8169 gigabit ethernet support"
+ depends on PCI
+ select FW_LOADER
+ select CRC32
+ select MII
+ ---help---
+ Say Y here if you have a Realtek 8169 PCI Gigabit Ethernet adapter.
+
+ To compile this driver as a module, choose M here: the module
+ will be called r8169. This is recommended.
+
+config SC92031
+ tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
+ depends on PCI && EXPERIMENTAL
+ select CRC32
+ ---help---
+ This is a driver for the Fast Ethernet PCI network cards based on
+ the Silan SC92031 chip (sometimes also called Rsltek 8139D). If you
+ have one of these, say Y here.
+
+ To compile this driver as a module, choose M here: the module
+ will be called sc92031. This is recommended.
+
+endif # NET_VENDOR_REALTEK
--- /dev/null
+#
+# Makefile for the Realtek network device drivers.
+#
+
+obj-$(CONFIG_8139CP) += 8139cp.o
+obj-$(CONFIG_8139TOO) += 8139too.o
+obj-$(CONFIG_ATP) += atp.o
+obj-$(CONFIG_R8169) += r8169.o
+obj-$(CONFIG_SC92031) += sc92031.o
--- /dev/null
+/* atp.c: Attached (pocket) ethernet adapter driver for linux. */
+/*
+ This is a driver for commonly OEM pocket (parallel port)
+ ethernet adapters based on the Realtek RTL8002 and RTL8012 chips.
+
+ Written 1993-2000 by Donald Becker.
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ Copyright 1993 United States Government as represented by the Director,
+ National Security Agency. Copyright 1994-2000 retained by the original
+ author, Donald Becker. The timer-based reset code was supplied in 1995
+ by Bill Carlson, wwc@super.org.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+ Support information and updates available at
+ http://www.scyld.com/network/atp.html
+
+
+ Modular support/softnet added by Alan Cox.
+ _bit abuse fixed up by Alan Cox
+
+*/
+
+static const char version[] =
+"atp.c:v1.09=ac 2002/10/01 Donald Becker <becker@scyld.com>\n";
+
+/* The user-configurable values.
+ These may be modified when a driver module is loaded.*/
+
+static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
+#define net_debug debug
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 15;
+
+#define NUM_UNITS 2
+/* The standard set of ISA module parameters. */
+static int io[NUM_UNITS];
+static int irq[NUM_UNITS];
+static int xcvr[NUM_UNITS]; /* The data transfer mode. */
+
+/* Operational parameters that are set at compile time. */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (400*HZ/1000)
+
+/*
+ This file is a device driver for the RealTek (aka AT-Lan-Tec) pocket
+ ethernet adapter. This is a common low-cost OEM pocket ethernet
+ adapter, sold under many names.
+
+ Sources:
+ This driver was written from the packet driver assembly code provided by
+ Vincent Bono of AT-Lan-Tec. Ever try to figure out how a complicated
+ device works just from the assembly code? It ain't pretty. The following
+ description is written based on guesses and writing lots of special-purpose
+ code to test my theorized operation.
+
+ In 1997 Realtek made available the documentation for the second generation
+ RTL8012 chip, which has lead to several driver improvements.
+ http://www.realtek.com.tw/
+
+ Theory of Operation
+
+ The RTL8002 adapter seems to be built around a custom spin of the SEEQ
+ controller core. It probably has a 16K or 64K internal packet buffer, of
+ which the first 4K is devoted to transmit and the rest to receive.
+ The controller maintains the queue of received packet and the packet buffer
+ access pointer internally, with only 'reset to beginning' and 'skip to next
+ packet' commands visible. The transmit packet queue holds two (or more?)
+ packets: both 'retransmit this packet' (due to collision) and 'transmit next
+ packet' commands must be started by hand.
+
+ The station address is stored in a standard bit-serial EEPROM which must be
+ read (ughh) by the device driver. (Provisions have been made for
+ substituting a 74S288 PROM, but I haven't gotten reports of any models
+ using it.) Unlike built-in devices, a pocket adapter can temporarily lose
+ power without indication to the device driver. The major effect is that
+ the station address, receive filter (promiscuous, etc.) and transceiver
+ must be reset.
+
+ The controller itself has 16 registers, some of which use only the lower
+ bits. The registers are read and written 4 bits at a time. The four bit
+ register address is presented on the data lines along with a few additional
+ timing and control bits. The data is then read from status port or written
+ to the data port.
+
+ Correction: the controller has two banks of 16 registers. The second
+ bank contains only the multicast filter table (now used) and the EEPROM
+ access registers.
+
+ Since the bulk data transfer of the actual packets through the slow
+ parallel port dominates the driver's running time, four distinct data
+ (non-register) transfer modes are provided by the adapter, two in each
+ direction. In the first mode timing for the nibble transfers is
+ provided through the data port. In the second mode the same timing is
+ provided through the control port. In either case the data is read from
+ the status port and written to the data port, just as it is accessing
+ registers.
+
+ In addition to the basic data transfer methods, several more are modes are
+ created by adding some delay by doing multiple reads of the data to allow
+ it to stabilize. This delay seems to be needed on most machines.
+
+ The data transfer mode is stored in the 'dev->if_port' field. Its default
+ value is '4'. It may be overridden at boot-time using the third parameter
+ to the "ether=..." initialization.
+
+ The header file <atp.h> provides inline functions that encapsulate the
+ register and data access methods. These functions are hand-tuned to
+ generate reasonable object code. This header file also documents my
+ interpretations of the device registers.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/crc32.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include "atp.h"
+
+MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
+MODULE_DESCRIPTION("RealTek RTL8002/8012 parallel port Ethernet driver");
+MODULE_LICENSE("GPL");
+
+module_param(max_interrupt_work, int, 0);
+module_param(debug, int, 0);
+module_param_array(io, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
+module_param_array(xcvr, int, NULL, 0);
+MODULE_PARM_DESC(max_interrupt_work, "ATP maximum events handled per interrupt");
+MODULE_PARM_DESC(debug, "ATP debug level (0-7)");
+MODULE_PARM_DESC(io, "ATP I/O base address(es)");
+MODULE_PARM_DESC(irq, "ATP IRQ number(s)");
+MODULE_PARM_DESC(xcvr, "ATP transceiver(s) (0=internal, 1=external)");
+
+/* The number of low I/O ports used by the ethercard. */
+#define ETHERCARD_TOTAL_SIZE 3
+
+/* Sequence to switch an 8012 from printer mux to ethernet mode. */
+static char mux_8012[] = { 0xff, 0xf7, 0xff, 0xfb, 0xf3, 0xfb, 0xff, 0xf7,};
+
+struct net_local {
+ spinlock_t lock;
+ struct net_device *next_module;
+ struct timer_list timer; /* Media selection timer. */
+ long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
+ int saved_tx_size;
+ unsigned int tx_unit_busy:1;
+ unsigned char re_tx, /* Number of packet retransmissions. */
+ addr_mode, /* Current Rx filter e.g. promiscuous, etc. */
+ pac_cnt_in_tx_buf,
+ chip_type;
+};
+
+/* This code, written by wwc@super.org, resets the adapter every
+ TIMED_CHECKER ticks. This recovers from an unknown error which
+ hangs the device. */
+#define TIMED_CHECKER (HZ/4)
+#ifdef TIMED_CHECKER
+#include <linux/timer.h>
+static void atp_timed_checker(unsigned long ignored);
+#endif
+
+/* Index to functions, as function prototypes. */
+
+static int atp_probe1(long ioaddr);
+static void get_node_ID(struct net_device *dev);
+static unsigned short eeprom_op(long ioaddr, unsigned int cmd);
+static int net_open(struct net_device *dev);
+static void hardware_init(struct net_device *dev);
+static void write_packet(long ioaddr, int length, unsigned char *packet, int pad, int mode);
+static void trigger_send(long ioaddr, int length);
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev);
+static irqreturn_t atp_interrupt(int irq, void *dev_id);
+static void net_rx(struct net_device *dev);
+static void read_block(long ioaddr, int length, unsigned char *buffer, int data_mode);
+static int net_close(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
+static void tx_timeout(struct net_device *dev);
+
+
+/* A list of all installed ATP devices, for removing the driver module. */
+static struct net_device *root_atp_dev;
+
+/* Check for a network adapter of this type, and return '0' iff one exists.
+ If dev->base_addr == 0, probe all likely locations.
+ If dev->base_addr == 1, always return failure.
+ If dev->base_addr == 2, allocate space for the device and return success
+ (detachable devices only).
+
+ FIXME: we should use the parport layer for this
+ */
+static int __init atp_init(void)
+{
+ int *port, ports[] = {0x378, 0x278, 0x3bc, 0};
+ int base_addr = io[0];
+
+ if (base_addr > 0x1ff) /* Check a single specified location. */
+ return atp_probe1(base_addr);
+ else if (base_addr == 1) /* Don't probe at all. */
+ return -ENXIO;
+
+ for (port = ports; *port; port++) {
+ long ioaddr = *port;
+ outb(0x57, ioaddr + PAR_DATA);
+ if (inb(ioaddr + PAR_DATA) != 0x57)
+ continue;
+ if (atp_probe1(ioaddr) == 0)
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+static const struct net_device_ops atp_netdev_ops = {
+ .ndo_open = net_open,
+ .ndo_stop = net_close,
+ .ndo_start_xmit = atp_send_packet,
+ .ndo_set_multicast_list = set_rx_mode,
+ .ndo_tx_timeout = tx_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int __init atp_probe1(long ioaddr)
+{
+ struct net_device *dev = NULL;
+ struct net_local *lp;
+ int saved_ctrl_reg, status, i;
+ int res;
+
+ outb(0xff, ioaddr + PAR_DATA);
+ /* Save the original value of the Control register, in case we guessed
+ wrong. */
+ saved_ctrl_reg = inb(ioaddr + PAR_CONTROL);
+ if (net_debug > 3)
+ printk("atp: Control register was %#2.2x.\n", saved_ctrl_reg);
+ /* IRQEN=0, SLCTB=high INITB=high, AUTOFDB=high, STBB=high. */
+ outb(0x04, ioaddr + PAR_CONTROL);
+#ifndef final_version
+ if (net_debug > 3) {
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg(ioaddr, MODSEL, 0x00);
+ printk("atp: Registers are ");
+ for (i = 0; i < 32; i++)
+ printk(" %2.2x", read_nibble(ioaddr, i));
+ printk(".\n");
+ }
+#endif
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET);
+ /* udelay() here? */
+ status = read_nibble(ioaddr, CMR1);
+
+ if (net_debug > 3) {
+ printk(KERN_DEBUG "atp: Status nibble was %#2.2x..", status);
+ for (i = 0; i < 32; i++)
+ printk(" %2.2x", read_nibble(ioaddr, i));
+ printk("\n");
+ }
+
+ if ((status & 0x78) != 0x08) {
+ /* The pocket adapter probe failed, restore the control register. */
+ outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
+ return -ENODEV;
+ }
+ status = read_nibble(ioaddr, CMR2_h);
+ if ((status & 0x78) != 0x10) {
+ outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
+ return -ENODEV;
+ }
+
+ dev = alloc_etherdev(sizeof(struct net_local));
+ if (!dev)
+ return -ENOMEM;
+
+ /* Find the IRQ used by triggering an interrupt. */
+ write_reg_byte(ioaddr, CMR2, 0x01); /* No accept mode, IRQ out. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE); /* Enable Tx and Rx. */
+
+ /* Omit autoIRQ routine for now. Use "table lookup" instead. Uhgggh. */
+ if (irq[0])
+ dev->irq = irq[0];
+ else if (ioaddr == 0x378)
+ dev->irq = 7;
+ else
+ dev->irq = 5;
+ write_reg_high(ioaddr, CMR1, CMR1h_TxRxOFF); /* Disable Tx and Rx units. */
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+
+ dev->base_addr = ioaddr;
+
+ /* Read the station address PROM. */
+ get_node_ID(dev);
+
+#ifndef MODULE
+ if (net_debug)
+ printk(KERN_INFO "%s", version);
+#endif
+
+ printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, "
+ "SAPROM %pM.\n",
+ dev->name, dev->base_addr, dev->irq, dev->dev_addr);
+
+ /* Reset the ethernet hardware and activate the printer pass-through. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
+
+ lp = netdev_priv(dev);
+ lp->chip_type = RTL8002;
+ lp->addr_mode = CMR2h_Normal;
+ spin_lock_init(&lp->lock);
+
+ /* For the ATP adapter the "if_port" is really the data transfer mode. */
+ if (xcvr[0])
+ dev->if_port = xcvr[0];
+ else
+ dev->if_port = (dev->mem_start & 0xf) ? (dev->mem_start & 0x7) : 4;
+ if (dev->mem_end & 0xf)
+ net_debug = dev->mem_end & 7;
+
+ dev->netdev_ops = &atp_netdev_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ res = register_netdev(dev);
+ if (res) {
+ free_netdev(dev);
+ return res;
+ }
+
+ lp->next_module = root_atp_dev;
+ root_atp_dev = dev;
+
+ return 0;
+}
+
+/* Read the station address PROM, usually a word-wide EEPROM. */
+static void __init get_node_ID(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ int sa_offset = 0;
+ int i;
+
+ write_reg(ioaddr, CMR2, CMR2_EEPROM); /* Point to the EEPROM control registers. */
+
+ /* Some adapters have the station address at offset 15 instead of offset
+ zero. Check for it, and fix it if needed. */
+ if (eeprom_op(ioaddr, EE_READ(0)) == 0xffff)
+ sa_offset = 15;
+
+ for (i = 0; i < 3; i++)
+ ((__be16 *)dev->dev_addr)[i] =
+ cpu_to_be16(eeprom_op(ioaddr, EE_READ(sa_offset + i)));
+
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+}
+
+/*
+ An EEPROM read command starts by shifting out 0x60+address, and then
+ shifting in the serial data. See the NatSemi databook for details.
+ * ________________
+ * CS : __|
+ * ___ ___
+ * CLK: ______| |___| |
+ * __ _______ _______
+ * DI : __X_______X_______X
+ * DO : _________X_______X
+ */
+
+static unsigned short __init eeprom_op(long ioaddr, u32 cmd)
+{
+ unsigned eedata_out = 0;
+ int num_bits = EE_CMD_SIZE;
+
+ while (--num_bits >= 0) {
+ char outval = (cmd & (1<<num_bits)) ? EE_DATA_WRITE : 0;
+ write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_LOW);
+ write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_HIGH);
+ eedata_out <<= 1;
+ if (read_nibble(ioaddr, PROM_DATA) & EE_DATA_READ)
+ eedata_out++;
+ }
+ write_reg_high(ioaddr, PROM_CMD, EE_CLK_LOW & ~EE_CS);
+ return eedata_out;
+}
+
+
+/* Open/initialize the board. This is called (in the current kernel)
+ sometime after booting when the 'ifconfig' program is run.
+
+ This routine sets everything up anew at each open, even
+ registers that "should" only need to be set once at boot, so that
+ there is non-reboot way to recover if something goes wrong.
+
+ This is an attachable device: if there is no private entry then it wasn't
+ probed for at boot-time, and we need to probe for it again.
+ */
+static int net_open(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ int ret;
+
+ /* The interrupt line is turned off (tri-stated) when the device isn't in
+ use. That's especially important for "attached" interfaces where the
+ port or interrupt may be shared. */
+ ret = request_irq(dev->irq, atp_interrupt, 0, dev->name, dev);
+ if (ret)
+ return ret;
+
+ hardware_init(dev);
+
+ init_timer(&lp->timer);
+ lp->timer.expires = jiffies + TIMED_CHECKER;
+ lp->timer.data = (unsigned long)dev;
+ lp->timer.function = atp_timed_checker; /* timer handler */
+ add_timer(&lp->timer);
+
+ netif_start_queue(dev);
+ return 0;
+}
+
+/* This routine resets the hardware. We initialize everything, assuming that
+ the hardware may have been temporarily detached. */
+static void hardware_init(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int i;
+
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET);
+
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+
+ if (net_debug > 2) {
+ printk(KERN_DEBUG "%s: Reset: current Rx mode %d.\n", dev->name,
+ (read_nibble(ioaddr, CMR2_h) >> 3) & 0x0f);
+ }
+
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT);
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
+
+ /* Enable the interrupt line from the serial port. */
+ outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+
+ /* Unmask the interesting interrupts. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr);
+
+ lp->tx_unit_busy = 0;
+ lp->pac_cnt_in_tx_buf = 0;
+ lp->saved_tx_size = 0;
+}
+
+static void trigger_send(long ioaddr, int length)
+{
+ write_reg_byte(ioaddr, TxCNT0, length & 0xff);
+ write_reg(ioaddr, TxCNT1, length >> 8);
+ write_reg(ioaddr, CMR1, CMR1_Xmit);
+}
+
+static void write_packet(long ioaddr, int length, unsigned char *packet, int pad_len, int data_mode)
+{
+ if (length & 1)
+ {
+ length++;
+ pad_len++;
+ }
+
+ outb(EOC+MAR, ioaddr + PAR_DATA);
+ if ((data_mode & 1) == 0) {
+ /* Write the packet out, starting with the write addr. */
+ outb(WrAddr+MAR, ioaddr + PAR_DATA);
+ do {
+ write_byte_mode0(ioaddr, *packet++);
+ } while (--length > pad_len) ;
+ do {
+ write_byte_mode0(ioaddr, 0);
+ } while (--length > 0) ;
+ } else {
+ /* Write the packet out in slow mode. */
+ unsigned char outbyte = *packet++;
+
+ outb(Ctrl_LNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ outb(WrAddr+MAR, ioaddr + PAR_DATA);
+
+ outb((outbyte & 0x0f)|0x40, ioaddr + PAR_DATA);
+ outb(outbyte & 0x0f, ioaddr + PAR_DATA);
+ outbyte >>= 4;
+ outb(outbyte & 0x0f, ioaddr + PAR_DATA);
+ outb(Ctrl_HNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ while (--length > pad_len)
+ write_byte_mode1(ioaddr, *packet++);
+ while (--length > 0)
+ write_byte_mode1(ioaddr, 0);
+ }
+ /* Terminate the Tx frame. End of write: ECB. */
+ outb(0xff, ioaddr + PAR_DATA);
+ outb(Ctrl_HNibWrite | Ctrl_SelData | Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+}
+
+static void tx_timeout(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+
+ printk(KERN_WARNING "%s: Transmit timed out, %s?\n", dev->name,
+ inb(ioaddr + PAR_CONTROL) & 0x10 ? "network cable problem"
+ : "IRQ conflict");
+ dev->stats.tx_errors++;
+ /* Try to restart the adapter. */
+ hardware_init(dev);
+ dev->trans_start = jiffies; /* prevent tx timeout */
+ netif_wake_queue(dev);
+ dev->stats.tx_errors++;
+}
+
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int length;
+ unsigned long flags;
+
+ length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+
+ netif_stop_queue(dev);
+
+ /* Disable interrupts by writing 0x00 to the Interrupt Mask Register.
+ This sequence must not be interrupted by an incoming packet. */
+
+ spin_lock_irqsave(&lp->lock, flags);
+ write_reg(ioaddr, IMR, 0);
+ write_reg_high(ioaddr, IMR, 0);
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ write_packet(ioaddr, length, skb->data, length-skb->len, dev->if_port);
+
+ lp->pac_cnt_in_tx_buf++;
+ if (lp->tx_unit_busy == 0) {
+ trigger_send(ioaddr, length);
+ lp->saved_tx_size = 0; /* Redundant */
+ lp->re_tx = 0;
+ lp->tx_unit_busy = 1;
+ } else
+ lp->saved_tx_size = length;
+ /* Re-enable the LPT interrupts. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr);
+
+ dev_kfree_skb (skb);
+ return NETDEV_TX_OK;
+}
+
+
+/* The typical workload of the driver:
+ Handle the network interface interrupts. */
+static irqreturn_t atp_interrupt(int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct net_local *lp;
+ long ioaddr;
+ static int num_tx_since_rx;
+ int boguscount = max_interrupt_work;
+ int handled = 0;
+
+ ioaddr = dev->base_addr;
+ lp = netdev_priv(dev);
+
+ spin_lock(&lp->lock);
+
+ /* Disable additional spurious interrupts. */
+ outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
+
+ /* The adapter's output is currently the IRQ line, switch it to data. */
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+ write_reg(ioaddr, IMR, 0);
+
+ if (net_debug > 5) printk(KERN_DEBUG "%s: In interrupt ", dev->name);
+ while (--boguscount > 0) {
+ int status = read_nibble(ioaddr, ISR);
+ if (net_debug > 5) printk("loop status %02x..", status);
+
+ if (status & (ISR_RxOK<<3)) {
+ handled = 1;
+ write_reg(ioaddr, ISR, ISR_RxOK); /* Clear the Rx interrupt. */
+ do {
+ int read_status = read_nibble(ioaddr, CMR1);
+ if (net_debug > 6)
+ printk("handling Rx packet %02x..", read_status);
+ /* We acknowledged the normal Rx interrupt, so if the interrupt
+ is still outstanding we must have a Rx error. */
+ if (read_status & (CMR1_IRQ << 3)) { /* Overrun. */
+ dev->stats.rx_over_errors++;
+ /* Set to no-accept mode long enough to remove a packet. */
+ write_reg_high(ioaddr, CMR2, CMR2h_OFF);
+ net_rx(dev);
+ /* Clear the interrupt and return to normal Rx mode. */
+ write_reg_high(ioaddr, ISR, ISRh_RxErr);
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+ } else if ((read_status & (CMR1_BufEnb << 3)) == 0) {
+ net_rx(dev);
+ num_tx_since_rx = 0;
+ } else
+ break;
+ } while (--boguscount > 0);
+ } else if (status & ((ISR_TxErr + ISR_TxOK)<<3)) {
+ handled = 1;
+ if (net_debug > 6) printk("handling Tx done..");
+ /* Clear the Tx interrupt. We should check for too many failures
+ and reinitialize the adapter. */
+ write_reg(ioaddr, ISR, ISR_TxErr + ISR_TxOK);
+ if (status & (ISR_TxErr<<3)) {
+ dev->stats.collisions++;
+ if (++lp->re_tx > 15) {
+ dev->stats.tx_aborted_errors++;
+ hardware_init(dev);
+ break;
+ }
+ /* Attempt to retransmit. */
+ if (net_debug > 6) printk("attempting to ReTx");
+ write_reg(ioaddr, CMR1, CMR1_ReXmit + CMR1_Xmit);
+ } else {
+ /* Finish up the transmit. */
+ dev->stats.tx_packets++;
+ lp->pac_cnt_in_tx_buf--;
+ if ( lp->saved_tx_size) {
+ trigger_send(ioaddr, lp->saved_tx_size);
+ lp->saved_tx_size = 0;
+ lp->re_tx = 0;
+ } else
+ lp->tx_unit_busy = 0;
+ netif_wake_queue(dev); /* Inform upper layers. */
+ }
+ num_tx_since_rx++;
+ } else if (num_tx_since_rx > 8 &&
+ time_after(jiffies, dev->last_rx + HZ)) {
+ if (net_debug > 2)
+ printk(KERN_DEBUG "%s: Missed packet? No Rx after %d Tx and "
+ "%ld jiffies status %02x CMR1 %02x.\n", dev->name,
+ num_tx_since_rx, jiffies - dev->last_rx, status,
+ (read_nibble(ioaddr, CMR1) >> 3) & 15);
+ dev->stats.rx_missed_errors++;
+ hardware_init(dev);
+ num_tx_since_rx = 0;
+ break;
+ } else
+ break;
+ }
+
+ /* This following code fixes a rare (and very difficult to track down)
+ problem where the adapter forgets its ethernet address. */
+ {
+ int i;
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+#if 0 && defined(TIMED_CHECKER)
+ mod_timer(&lp->timer, jiffies + TIMED_CHECKER);
+#endif
+ }
+
+ /* Tell the adapter that it can go back to using the output line as IRQ. */
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT);
+ /* Enable the physical interrupt line, which is sure to be low until.. */
+ outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ /* .. we enable the interrupt sources. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr); /* Hmmm, really needed? */
+
+ spin_unlock(&lp->lock);
+
+ if (net_debug > 5) printk("exiting interrupt.\n");
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef TIMED_CHECKER
+/* This following code fixes a rare (and very difficult to track down)
+ problem where the adapter forgets its ethernet address. */
+static void atp_timed_checker(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ long ioaddr = dev->base_addr;
+ struct net_local *lp = netdev_priv(dev);
+ int tickssofar = jiffies - lp->last_rx_time;
+ int i;
+
+ spin_lock(&lp->lock);
+ if (tickssofar > 2*HZ) {
+#if 1
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+ lp->last_rx_time = jiffies;
+#else
+ for (i = 0; i < 6; i++)
+ if (read_cmd_byte(ioaddr, PAR0 + i) != atp_timed_dev->dev_addr[i])
+ {
+ struct net_local *lp = netdev_priv(atp_timed_dev);
+ write_reg_byte(ioaddr, PAR0 + i, atp_timed_dev->dev_addr[i]);
+ if (i == 2)
+ dev->stats.tx_errors++;
+ else if (i == 3)
+ dev->stats.tx_dropped++;
+ else if (i == 4)
+ dev->stats.collisions++;
+ else
+ dev->stats.rx_errors++;
+ }
+#endif
+ }
+ spin_unlock(&lp->lock);
+ lp->timer.expires = jiffies + TIMED_CHECKER;
+ add_timer(&lp->timer);
+}
+#endif
+
+/* We have a good packet(s), get it/them out of the buffers. */
+static void net_rx(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ struct rx_header rx_head;
+
+ /* Process the received packet. */
+ outb(EOC+MAR, ioaddr + PAR_DATA);
+ read_block(ioaddr, 8, (unsigned char*)&rx_head, dev->if_port);
+ if (net_debug > 5)
+ printk(KERN_DEBUG " rx_count %04x %04x %04x %04x..", rx_head.pad,
+ rx_head.rx_count, rx_head.rx_status, rx_head.cur_addr);
+ if ((rx_head.rx_status & 0x77) != 0x01) {
+ dev->stats.rx_errors++;
+ if (rx_head.rx_status & 0x0004) dev->stats.rx_frame_errors++;
+ else if (rx_head.rx_status & 0x0002) dev->stats.rx_crc_errors++;
+ if (net_debug > 3)
+ printk(KERN_DEBUG "%s: Unknown ATP Rx error %04x.\n",
+ dev->name, rx_head.rx_status);
+ if (rx_head.rx_status & 0x0020) {
+ dev->stats.rx_fifo_errors++;
+ write_reg_high(ioaddr, CMR1, CMR1h_TxENABLE);
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
+ } else if (rx_head.rx_status & 0x0050)
+ hardware_init(dev);
+ return;
+ } else {
+ /* Malloc up new buffer. The "-4" omits the FCS (CRC). */
+ int pkt_len = (rx_head.rx_count & 0x7ff) - 4;
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(pkt_len + 2);
+ if (skb == NULL) {
+ printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n",
+ dev->name);
+ dev->stats.rx_dropped++;
+ goto done;
+ }
+
+ skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
+ read_block(ioaddr, pkt_len, skb_put(skb,pkt_len), dev->if_port);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
+ }
+ done:
+ write_reg(ioaddr, CMR1, CMR1_NextPkt);
+ lp->last_rx_time = jiffies;
+}
+
+static void read_block(long ioaddr, int length, unsigned char *p, int data_mode)
+{
+ if (data_mode <= 3) { /* Mode 0 or 1 */
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ outb(length == 8 ? RdAddr | HNib | MAR : RdAddr | MAR,
+ ioaddr + PAR_DATA);
+ if (data_mode <= 1) { /* Mode 0 or 1 */
+ do { *p++ = read_byte_mode0(ioaddr); } while (--length > 0);
+ } else { /* Mode 2 or 3 */
+ do { *p++ = read_byte_mode2(ioaddr); } while (--length > 0);
+ }
+ } else if (data_mode <= 5) {
+ do { *p++ = read_byte_mode4(ioaddr); } while (--length > 0);
+ } else {
+ do { *p++ = read_byte_mode6(ioaddr); } while (--length > 0);
+ }
+
+ outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
+ outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
+}
+
+/* The inverse routine to net_open(). */
+static int
+net_close(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ netif_stop_queue(dev);
+
+ del_timer_sync(&lp->timer);
+
+ /* Flush the Tx and disable Rx here. */
+ lp->addr_mode = CMR2h_OFF;
+ write_reg_high(ioaddr, CMR2, CMR2h_OFF);
+
+ /* Free the IRQ line. */
+ outb(0x00, ioaddr + PAR_CONTROL);
+ free_irq(dev->irq, dev);
+
+ /* Reset the ethernet hardware and activate the printer pass-through. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
+ return 0;
+}
+
+/*
+ * Set or clear the multicast filter for this adapter.
+ */
+
+static void set_rx_mode_8002(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ if (!netdev_mc_empty(dev) || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC)))
+ lp->addr_mode = CMR2h_PROMISC;
+ else
+ lp->addr_mode = CMR2h_Normal;
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+}
+
+static void set_rx_mode_8012(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ unsigned char new_mode, mc_filter[8]; /* Multicast hash filter */
+ int i;
+
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ new_mode = CMR2h_PROMISC;
+ } else if ((netdev_mc_count(dev) > 1000) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ memset(mc_filter, 0xff, sizeof(mc_filter));
+ new_mode = CMR2h_Normal;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ memset(mc_filter, 0, sizeof(mc_filter));
+ netdev_for_each_mc_addr(ha, dev) {
+ int filterbit = ether_crc_le(ETH_ALEN, ha->addr) & 0x3f;
+ mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
+ }
+ new_mode = CMR2h_Normal;
+ }
+ lp->addr_mode = new_mode;
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT | 0x04); /* Switch to page 1. */
+ for (i = 0; i < 8; i++)
+ write_reg_byte(ioaddr, i, mc_filter[i]);
+ if (net_debug > 2 || 1) {
+ lp->addr_mode = 1;
+ printk(KERN_DEBUG "%s: Mode %d, setting multicast filter to",
+ dev->name, lp->addr_mode);
+ for (i = 0; i < 8; i++)
+ printk(" %2.2x", mc_filter[i]);
+ printk(".\n");
+ }
+
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT); /* Switch back to page 0 */
+}
+
+static void set_rx_mode(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (lp->chip_type == RTL8002)
+ return set_rx_mode_8002(dev);
+ else
+ return set_rx_mode_8012(dev);
+}
+
+
+static int __init atp_init_module(void) {
+ if (debug) /* Emit version even if no cards detected. */
+ printk(KERN_INFO "%s", version);
+ return atp_init();
+}
+
+static void __exit atp_cleanup_module(void) {
+ struct net_device *next_dev;
+
+ while (root_atp_dev) {
+ struct net_local *atp_local = netdev_priv(root_atp_dev);
+ next_dev = atp_local->next_module;
+ unregister_netdev(root_atp_dev);
+ /* No need to release_region(), since we never snarf it. */
+ free_netdev(root_atp_dev);
+ root_atp_dev = next_dev;
+ }
+}
+
+module_init(atp_init_module);
+module_exit(atp_cleanup_module);
--- /dev/null
+/* Linux header file for the ATP pocket ethernet adapter. */
+/* v1.09 8/9/2000 becker@scyld.com. */
+
+#include <linux/if_ether.h>
+#include <linux/types.h>
+
+/* The header prepended to received packets. */
+struct rx_header {
+ ushort pad; /* Pad. */
+ ushort rx_count;
+ ushort rx_status; /* Unknown bit assignments :-<. */
+ ushort cur_addr; /* Apparently the current buffer address(?) */
+};
+
+#define PAR_DATA 0
+#define PAR_STATUS 1
+#define PAR_CONTROL 2
+
+enum chip_type { RTL8002, RTL8012 };
+
+#define Ctrl_LNibRead 0x08 /* LP_PSELECP */
+#define Ctrl_HNibRead 0
+#define Ctrl_LNibWrite 0x08 /* LP_PSELECP */
+#define Ctrl_HNibWrite 0
+#define Ctrl_SelData 0x04 /* LP_PINITP */
+#define Ctrl_IRQEN 0x10 /* LP_PINTEN */
+
+#define EOW 0xE0
+#define EOC 0xE0
+#define WrAddr 0x40 /* Set address of EPLC read, write register. */
+#define RdAddr 0xC0
+#define HNib 0x10
+
+enum page0_regs
+{
+ /* The first six registers hold the ethernet physical station address. */
+ PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5,
+ TxCNT0 = 6, TxCNT1 = 7, /* The transmit byte count. */
+ TxSTAT = 8, RxSTAT = 9, /* Tx and Rx status. */
+ ISR = 10, IMR = 11, /* Interrupt status and mask. */
+ CMR1 = 12, /* Command register 1. */
+ CMR2 = 13, /* Command register 2. */
+ MODSEL = 14, /* Mode select register. */
+ MAR = 14, /* Memory address register (?). */
+ CMR2_h = 0x1d, };
+
+enum eepage_regs
+{ PROM_CMD = 6, PROM_DATA = 7 }; /* Note that PROM_CMD is in the "high" bits. */
+
+
+#define ISR_TxOK 0x01
+#define ISR_RxOK 0x04
+#define ISR_TxErr 0x02
+#define ISRh_RxErr 0x11 /* ISR, high nibble */
+
+#define CMR1h_MUX 0x08 /* Select printer multiplexor on 8012. */
+#define CMR1h_RESET 0x04 /* Reset. */
+#define CMR1h_RxENABLE 0x02 /* Rx unit enable. */
+#define CMR1h_TxENABLE 0x01 /* Tx unit enable. */
+#define CMR1h_TxRxOFF 0x00
+#define CMR1_ReXmit 0x08 /* Trigger a retransmit. */
+#define CMR1_Xmit 0x04 /* Trigger a transmit. */
+#define CMR1_IRQ 0x02 /* Interrupt active. */
+#define CMR1_BufEnb 0x01 /* Enable the buffer(?). */
+#define CMR1_NextPkt 0x01 /* Enable the buffer(?). */
+
+#define CMR2_NULL 8
+#define CMR2_IRQOUT 9
+#define CMR2_RAMTEST 10
+#define CMR2_EEPROM 12 /* Set to page 1, for reading the EEPROM. */
+
+#define CMR2h_OFF 0 /* No accept mode. */
+#define CMR2h_Physical 1 /* Accept a physical address match only. */
+#define CMR2h_Normal 2 /* Accept physical and broadcast address. */
+#define CMR2h_PROMISC 3 /* Promiscuous mode. */
+
+/* An inline function used below: it differs from inb() by explicitly return an unsigned
+ char, saving a truncation. */
+static inline unsigned char inbyte(unsigned short port)
+{
+ unsigned char _v;
+ __asm__ __volatile__ ("inb %w1,%b0" :"=a" (_v):"d" (port));
+ return _v;
+}
+
+/* Read register OFFSET.
+ This command should always be terminated with read_end(). */
+static inline unsigned char read_nibble(short port, unsigned char offset)
+{
+ unsigned char retval;
+ outb(EOC+offset, port + PAR_DATA);
+ outb(RdAddr+offset, port + PAR_DATA);
+ inbyte(port + PAR_STATUS); /* Settling time delay */
+ retval = inbyte(port + PAR_STATUS);
+ outb(EOC+offset, port + PAR_DATA);
+
+ return retval;
+}
+
+/* Functions for bulk data read. The interrupt line is always disabled. */
+/* Get a byte using read mode 0, reading data from the control lines. */
+static inline unsigned char read_byte_mode0(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* The same as read_byte_mode0(), but does multiple inb()s for stability. */
+static inline unsigned char read_byte_mode2(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register. */
+static inline unsigned char read_byte_mode4(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(RdAddr | MAR, ioaddr + PAR_DATA);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register, double reading to allow settling. */
+static inline unsigned char read_byte_mode6(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(RdAddr | MAR, ioaddr + PAR_DATA);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+ inbyte(ioaddr + PAR_STATUS);
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+static inline void
+write_reg(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval;
+ outb(EOC | reg, port + PAR_DATA);
+ outval = WrAddr | reg;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outval &= 0xf0;
+ outval |= value;
+ outb(outval, port + PAR_DATA);
+ outval &= 0x1f;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA);
+
+ outb(EOC | outval, port + PAR_DATA);
+}
+
+static inline void
+write_reg_high(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval = EOC | HNib | reg;
+
+ outb(outval, port + PAR_DATA);
+ outval &= WrAddr | HNib | 0x0f;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outval = WrAddr | HNib | value;
+ outb(outval, port + PAR_DATA);
+ outval &= HNib | 0x0f; /* HNib | value */
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA);
+
+ outb(EOC | HNib | outval, port + PAR_DATA);
+}
+
+/* Write a byte out using nibble mode. The low nibble is written first. */
+static inline void
+write_reg_byte(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval;
+ outb(EOC | reg, port + PAR_DATA); /* Reset the address register. */
+ outval = WrAddr | reg;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA);
+ outb(value & 0x0f, port + PAR_DATA);
+ value >>= 4;
+ outb(value, port + PAR_DATA);
+ outb(0x10 | value, port + PAR_DATA);
+ outb(0x10 | value, port + PAR_DATA);
+
+ outb(EOC | value, port + PAR_DATA); /* Reset the address register. */
+}
+
+/*
+ * Bulk data writes to the packet buffer. The interrupt line remains enabled.
+ * The first, faster method uses only the dataport (data modes 0, 2 & 4).
+ * The second (backup) method uses data and control regs (modes 1, 3 & 5).
+ * It should only be needed when there is skew between the individual data
+ * lines.
+ */
+static inline void write_byte_mode0(short ioaddr, unsigned char value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+}
+
+static inline void write_byte_mode1(short ioaddr, unsigned char value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL);
+ outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+ outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL);
+}
+
+/* Write 16bit VALUE to the packet buffer: the same as above just doubled. */
+static inline void write_word_mode0(short ioaddr, unsigned short value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+}
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x02 /* EEPROM chip select. */
+#define EE_CLK_HIGH 0x12
+#define EE_CLK_LOW 0x16
+#define EE_DATA_WRITE 0x01 /* EEPROM chip data in. */
+#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
+
+/* Delay between EEPROM clock transitions. */
+#define eeprom_delay(ticks) \
+do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD(offset) (((5 << 6) + (offset)) << 17)
+#define EE_READ(offset) (((6 << 6) + (offset)) << 17)
+#define EE_ERASE(offset) (((7 << 6) + (offset)) << 17)
+#define EE_CMD_SIZE 27 /* The command+address+data size. */
--- /dev/null
+/*
+ * r8169.c: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/if_vlan.h>
+#include <linux/crc32.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
+#include <linux/firmware.h>
+#include <linux/pci-aspm.h>
+#include <linux/prefetch.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define RTL8169_VERSION "2.3LK-NAPI"
+#define MODULENAME "r8169"
+#define PFX MODULENAME ": "
+
+#define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
+#define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
+#define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
+#define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
+#define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
+#define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
+
+#ifdef RTL8169_DEBUG
+#define assert(expr) \
+ if (!(expr)) { \
+ printk( "Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr,__FILE__,__func__,__LINE__); \
+ }
+#define dprintk(fmt, args...) \
+ do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
+#else
+#define assert(expr) do {} while (0)
+#define dprintk(fmt, args...) do {} while (0)
+#endif /* RTL8169_DEBUG */
+
+#define R8169_MSG_DEFAULT \
+ (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
+
+#define TX_BUFFS_AVAIL(tp) \
+ (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static const int multicast_filter_limit = 32;
+
+/* MAC address length */
+#define MAC_ADDR_LEN 6
+
+#define MAX_READ_REQUEST_SHIFT 12
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
+#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
+
+#define R8169_REGS_SIZE 256
+#define R8169_NAPI_WEIGHT 64
+#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
+#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
+#define RX_BUF_SIZE 1536 /* Rx Buffer size */
+#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
+#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
+
+#define RTL8169_TX_TIMEOUT (6*HZ)
+#define RTL8169_PHY_TIMEOUT (10*HZ)
+
+#define RTL_EEPROM_SIG cpu_to_le32(0x8129)
+#define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
+#define RTL_EEPROM_SIG_ADDR 0x0000
+
+/* write/read MMIO register */
+#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
+#define RTL_R8(reg) readb (ioaddr + (reg))
+#define RTL_R16(reg) readw (ioaddr + (reg))
+#define RTL_R32(reg) readl (ioaddr + (reg))
+
+enum mac_version {
+ RTL_GIGA_MAC_VER_01 = 0,
+ RTL_GIGA_MAC_VER_02,
+ RTL_GIGA_MAC_VER_03,
+ RTL_GIGA_MAC_VER_04,
+ RTL_GIGA_MAC_VER_05,
+ RTL_GIGA_MAC_VER_06,
+ RTL_GIGA_MAC_VER_07,
+ RTL_GIGA_MAC_VER_08,
+ RTL_GIGA_MAC_VER_09,
+ RTL_GIGA_MAC_VER_10,
+ RTL_GIGA_MAC_VER_11,
+ RTL_GIGA_MAC_VER_12,
+ RTL_GIGA_MAC_VER_13,
+ RTL_GIGA_MAC_VER_14,
+ RTL_GIGA_MAC_VER_15,
+ RTL_GIGA_MAC_VER_16,
+ RTL_GIGA_MAC_VER_17,
+ RTL_GIGA_MAC_VER_18,
+ RTL_GIGA_MAC_VER_19,
+ RTL_GIGA_MAC_VER_20,
+ RTL_GIGA_MAC_VER_21,
+ RTL_GIGA_MAC_VER_22,
+ RTL_GIGA_MAC_VER_23,
+ RTL_GIGA_MAC_VER_24,
+ RTL_GIGA_MAC_VER_25,
+ RTL_GIGA_MAC_VER_26,
+ RTL_GIGA_MAC_VER_27,
+ RTL_GIGA_MAC_VER_28,
+ RTL_GIGA_MAC_VER_29,
+ RTL_GIGA_MAC_VER_30,
+ RTL_GIGA_MAC_VER_31,
+ RTL_GIGA_MAC_VER_32,
+ RTL_GIGA_MAC_VER_33,
+ RTL_GIGA_MAC_VER_34,
+ RTL_GIGA_MAC_NONE = 0xff,
+};
+
+enum rtl_tx_desc_version {
+ RTL_TD_0 = 0,
+ RTL_TD_1 = 1,
+};
+
+#define _R(NAME,TD,FW) \
+ { .name = NAME, .txd_version = TD, .fw_name = FW }
+
+static const struct {
+ const char *name;
+ enum rtl_tx_desc_version txd_version;
+ const char *fw_name;
+} rtl_chip_infos[] = {
+ /* PCI devices. */
+ [RTL_GIGA_MAC_VER_01] =
+ _R("RTL8169", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_02] =
+ _R("RTL8169s", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_03] =
+ _R("RTL8110s", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_04] =
+ _R("RTL8169sb/8110sb", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_05] =
+ _R("RTL8169sc/8110sc", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_06] =
+ _R("RTL8169sc/8110sc", RTL_TD_0, NULL),
+ /* PCI-E devices. */
+ [RTL_GIGA_MAC_VER_07] =
+ _R("RTL8102e", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_08] =
+ _R("RTL8102e", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_09] =
+ _R("RTL8102e", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_10] =
+ _R("RTL8101e", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_11] =
+ _R("RTL8168b/8111b", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_12] =
+ _R("RTL8168b/8111b", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_13] =
+ _R("RTL8101e", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_14] =
+ _R("RTL8100e", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_15] =
+ _R("RTL8100e", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_16] =
+ _R("RTL8101e", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_17] =
+ _R("RTL8168b/8111b", RTL_TD_0, NULL),
+ [RTL_GIGA_MAC_VER_18] =
+ _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_19] =
+ _R("RTL8168c/8111c", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_20] =
+ _R("RTL8168c/8111c", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_21] =
+ _R("RTL8168c/8111c", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_22] =
+ _R("RTL8168c/8111c", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_23] =
+ _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_24] =
+ _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_25] =
+ _R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1),
+ [RTL_GIGA_MAC_VER_26] =
+ _R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2),
+ [RTL_GIGA_MAC_VER_27] =
+ _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_28] =
+ _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_29] =
+ _R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
+ [RTL_GIGA_MAC_VER_30] =
+ _R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
+ [RTL_GIGA_MAC_VER_31] =
+ _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
+ [RTL_GIGA_MAC_VER_32] =
+ _R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1),
+ [RTL_GIGA_MAC_VER_33] =
+ _R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2),
+ [RTL_GIGA_MAC_VER_34] =
+ _R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3)
+};
+#undef _R
+
+enum cfg_version {
+ RTL_CFG_0 = 0x00,
+ RTL_CFG_1,
+ RTL_CFG_2
+};
+
+static void rtl_hw_start_8169(struct net_device *);
+static void rtl_hw_start_8168(struct net_device *);
+static void rtl_hw_start_8101(struct net_device *);
+
+static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
+ { PCI_VENDOR_ID_LINKSYS, 0x1032,
+ PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
+ { 0x0001, 0x8168,
+ PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
+ {0,},
+};
+
+MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
+
+static int rx_buf_sz = 16383;
+static int use_dac;
+static struct {
+ u32 msg_enable;
+} debug = { -1 };
+
+enum rtl_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAC4 = 4,
+ MAR0 = 8, /* Multicast filter. */
+ CounterAddrLow = 0x10,
+ CounterAddrHigh = 0x14,
+ TxDescStartAddrLow = 0x20,
+ TxDescStartAddrHigh = 0x24,
+ TxHDescStartAddrLow = 0x28,
+ TxHDescStartAddrHigh = 0x2c,
+ FLASH = 0x30,
+ ERSR = 0x36,
+ ChipCmd = 0x37,
+ TxPoll = 0x38,
+ IntrMask = 0x3c,
+ IntrStatus = 0x3e,
+
+ TxConfig = 0x40,
+#define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
+#define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
+
+ RxConfig = 0x44,
+#define RX128_INT_EN (1 << 15) /* 8111c and later */
+#define RX_MULTI_EN (1 << 14) /* 8111c only */
+#define RXCFG_FIFO_SHIFT 13
+ /* No threshold before first PCI xfer */
+#define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
+#define RXCFG_DMA_SHIFT 8
+ /* Unlimited maximum PCI burst. */
+#define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
+
+ RxMissed = 0x4c,
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ Config2 = 0x53,
+ Config3 = 0x54,
+ Config4 = 0x55,
+ Config5 = 0x56,
+ MultiIntr = 0x5c,
+ PHYAR = 0x60,
+ PHYstatus = 0x6c,
+ RxMaxSize = 0xda,
+ CPlusCmd = 0xe0,
+ IntrMitigate = 0xe2,
+ RxDescAddrLow = 0xe4,
+ RxDescAddrHigh = 0xe8,
+ EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
+
+#define NoEarlyTx 0x3f /* Max value : no early transmit. */
+
+ MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
+
+#define TxPacketMax (8064 >> 7)
+
+ FuncEvent = 0xf0,
+ FuncEventMask = 0xf4,
+ FuncPresetState = 0xf8,
+ FuncForceEvent = 0xfc,
+};
+
+enum rtl8110_registers {
+ TBICSR = 0x64,
+ TBI_ANAR = 0x68,
+ TBI_LPAR = 0x6a,
+};
+
+enum rtl8168_8101_registers {
+ CSIDR = 0x64,
+ CSIAR = 0x68,
+#define CSIAR_FLAG 0x80000000
+#define CSIAR_WRITE_CMD 0x80000000
+#define CSIAR_BYTE_ENABLE 0x0f
+#define CSIAR_BYTE_ENABLE_SHIFT 12
+#define CSIAR_ADDR_MASK 0x0fff
+ PMCH = 0x6f,
+ EPHYAR = 0x80,
+#define EPHYAR_FLAG 0x80000000
+#define EPHYAR_WRITE_CMD 0x80000000
+#define EPHYAR_REG_MASK 0x1f
+#define EPHYAR_REG_SHIFT 16
+#define EPHYAR_DATA_MASK 0xffff
+ DLLPR = 0xd0,
+#define PFM_EN (1 << 6)
+ DBG_REG = 0xd1,
+#define FIX_NAK_1 (1 << 4)
+#define FIX_NAK_2 (1 << 3)
+ TWSI = 0xd2,
+ MCU = 0xd3,
+#define NOW_IS_OOB (1 << 7)
+#define EN_NDP (1 << 3)
+#define EN_OOB_RESET (1 << 2)
+ EFUSEAR = 0xdc,
+#define EFUSEAR_FLAG 0x80000000
+#define EFUSEAR_WRITE_CMD 0x80000000
+#define EFUSEAR_READ_CMD 0x00000000
+#define EFUSEAR_REG_MASK 0x03ff
+#define EFUSEAR_REG_SHIFT 8
+#define EFUSEAR_DATA_MASK 0xff
+};
+
+enum rtl8168_registers {
+ LED_FREQ = 0x1a,
+ EEE_LED = 0x1b,
+ ERIDR = 0x70,
+ ERIAR = 0x74,
+#define ERIAR_FLAG 0x80000000
+#define ERIAR_WRITE_CMD 0x80000000
+#define ERIAR_READ_CMD 0x00000000
+#define ERIAR_ADDR_BYTE_ALIGN 4
+#define ERIAR_TYPE_SHIFT 16
+#define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
+#define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
+#define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
+#define ERIAR_MASK_SHIFT 12
+#define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
+ EPHY_RXER_NUM = 0x7c,
+ OCPDR = 0xb0, /* OCP GPHY access */
+#define OCPDR_WRITE_CMD 0x80000000
+#define OCPDR_READ_CMD 0x00000000
+#define OCPDR_REG_MASK 0x7f
+#define OCPDR_GPHY_REG_SHIFT 16
+#define OCPDR_DATA_MASK 0xffff
+ OCPAR = 0xb4,
+#define OCPAR_FLAG 0x80000000
+#define OCPAR_GPHY_WRITE_CMD 0x8000f060
+#define OCPAR_GPHY_READ_CMD 0x0000f060
+ RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
+ MISC = 0xf0, /* 8168e only. */
+#define TXPLA_RST (1 << 29)
+#define PWM_EN (1 << 22)
+};
+
+enum rtl_register_content {
+ /* InterruptStatusBits */
+ SYSErr = 0x8000,
+ PCSTimeout = 0x4000,
+ SWInt = 0x0100,
+ TxDescUnavail = 0x0080,
+ RxFIFOOver = 0x0040,
+ LinkChg = 0x0020,
+ RxOverflow = 0x0010,
+ TxErr = 0x0008,
+ TxOK = 0x0004,
+ RxErr = 0x0002,
+ RxOK = 0x0001,
+
+ /* RxStatusDesc */
+ RxFOVF = (1 << 23),
+ RxRWT = (1 << 22),
+ RxRES = (1 << 21),
+ RxRUNT = (1 << 20),
+ RxCRC = (1 << 19),
+
+ /* ChipCmdBits */
+ StopReq = 0x80,
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+
+ /* TXPoll register p.5 */
+ HPQ = 0x80, /* Poll cmd on the high prio queue */
+ NPQ = 0x40, /* Poll cmd on the low prio queue */
+ FSWInt = 0x01, /* Forced software interrupt */
+
+ /* Cfg9346Bits */
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xc0,
+
+ /* rx_mode_bits */
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+#define RX_CONFIG_ACCEPT_MASK 0x3f
+
+ /* TxConfigBits */
+ TxInterFrameGapShift = 24,
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Config1 register p.24 */
+ LEDS1 = (1 << 7),
+ LEDS0 = (1 << 6),
+ MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
+ Speed_down = (1 << 4),
+ MEMMAP = (1 << 3),
+ IOMAP = (1 << 2),
+ VPD = (1 << 1),
+ PMEnable = (1 << 0), /* Power Management Enable */
+
+ /* Config2 register p. 25 */
+ PCI_Clock_66MHz = 0x01,
+ PCI_Clock_33MHz = 0x00,
+
+ /* Config3 register p.25 */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+ Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
+
+ /* Config5 register p.27 */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ Spi_en = (1 << 3),
+ LanWake = (1 << 1), /* LanWake enable/disable */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+
+ /* TBICSR p.28 */
+ TBIReset = 0x80000000,
+ TBILoopback = 0x40000000,
+ TBINwEnable = 0x20000000,
+ TBINwRestart = 0x10000000,
+ TBILinkOk = 0x02000000,
+ TBINwComplete = 0x01000000,
+
+ /* CPlusCmd p.31 */
+ EnableBist = (1 << 15), // 8168 8101
+ Mac_dbgo_oe = (1 << 14), // 8168 8101
+ Normal_mode = (1 << 13), // unused
+ Force_half_dup = (1 << 12), // 8168 8101
+ Force_rxflow_en = (1 << 11), // 8168 8101
+ Force_txflow_en = (1 << 10), // 8168 8101
+ Cxpl_dbg_sel = (1 << 9), // 8168 8101
+ ASF = (1 << 8), // 8168 8101
+ PktCntrDisable = (1 << 7), // 8168 8101
+ Mac_dbgo_sel = 0x001c, // 8168
+ RxVlan = (1 << 6),
+ RxChkSum = (1 << 5),
+ PCIDAC = (1 << 4),
+ PCIMulRW = (1 << 3),
+ INTT_0 = 0x0000, // 8168
+ INTT_1 = 0x0001, // 8168
+ INTT_2 = 0x0002, // 8168
+ INTT_3 = 0x0003, // 8168
+
+ /* rtl8169_PHYstatus */
+ TBI_Enable = 0x80,
+ TxFlowCtrl = 0x40,
+ RxFlowCtrl = 0x20,
+ _1000bpsF = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LinkStatus = 0x02,
+ FullDup = 0x01,
+
+ /* _TBICSRBit */
+ TBILinkOK = 0x02000000,
+
+ /* DumpCounterCommand */
+ CounterDump = 0x8,
+};
+
+enum rtl_desc_bit {
+ /* First doubleword. */
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+};
+
+/* Generic case. */
+enum rtl_tx_desc_bit {
+ /* First doubleword. */
+ TD_LSO = (1 << 27), /* Large Send Offload */
+#define TD_MSS_MAX 0x07ffu /* MSS value */
+
+ /* Second doubleword. */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+};
+
+/* 8169, 8168b and 810x except 8102e. */
+enum rtl_tx_desc_bit_0 {
+ /* First doubleword. */
+#define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
+ TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
+ TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
+ TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
+};
+
+/* 8102e, 8168c and beyond. */
+enum rtl_tx_desc_bit_1 {
+ /* Second doubleword. */
+#define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
+ TD1_IP_CS = (1 << 29), /* Calculate IP checksum */
+ TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
+ TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
+};
+
+static const struct rtl_tx_desc_info {
+ struct {
+ u32 udp;
+ u32 tcp;
+ } checksum;
+ u16 mss_shift;
+ u16 opts_offset;
+} tx_desc_info [] = {
+ [RTL_TD_0] = {
+ .checksum = {
+ .udp = TD0_IP_CS | TD0_UDP_CS,
+ .tcp = TD0_IP_CS | TD0_TCP_CS
+ },
+ .mss_shift = TD0_MSS_SHIFT,
+ .opts_offset = 0
+ },
+ [RTL_TD_1] = {
+ .checksum = {
+ .udp = TD1_IP_CS | TD1_UDP_CS,
+ .tcp = TD1_IP_CS | TD1_TCP_CS
+ },
+ .mss_shift = TD1_MSS_SHIFT,
+ .opts_offset = 1
+ }
+};
+
+enum rtl_rx_desc_bit {
+ /* Rx private */
+ PID1 = (1 << 18), /* Protocol ID bit 1/2 */
+ PID0 = (1 << 17), /* Protocol ID bit 2/2 */
+
+#define RxProtoUDP (PID1)
+#define RxProtoTCP (PID0)
+#define RxProtoIP (PID1 | PID0)
+#define RxProtoMask RxProtoIP
+
+ IPFail = (1 << 16), /* IP checksum failed */
+ UDPFail = (1 << 15), /* UDP/IP checksum failed */
+ TCPFail = (1 << 14), /* TCP/IP checksum failed */
+ RxVlanTag = (1 << 16), /* VLAN tag available */
+};
+
+#define RsvdMask 0x3fffc000
+
+struct TxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct RxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ u32 len;
+ u8 __pad[sizeof(void *) - sizeof(u32)];
+};
+
+enum features {
+ RTL_FEATURE_WOL = (1 << 0),
+ RTL_FEATURE_MSI = (1 << 1),
+ RTL_FEATURE_GMII = (1 << 2),
+};
+
+struct rtl8169_counters {
+ __le64 tx_packets;
+ __le64 rx_packets;
+ __le64 tx_errors;
+ __le32 rx_errors;
+ __le16 rx_missed;
+ __le16 align_errors;
+ __le32 tx_one_collision;
+ __le32 tx_multi_collision;
+ __le64 rx_unicast;
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underun;
+};
+
+struct rtl8169_private {
+ void __iomem *mmio_addr; /* memory map physical address */
+ struct pci_dev *pci_dev;
+ struct net_device *dev;
+ struct napi_struct napi;
+ spinlock_t lock;
+ u32 msg_enable;
+ u16 txd_version;
+ u16 mac_version;
+ u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
+ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
+ u32 dirty_rx;
+ u32 dirty_tx;
+ struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
+ struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
+ dma_addr_t TxPhyAddr;
+ dma_addr_t RxPhyAddr;
+ void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
+ struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
+ struct timer_list timer;
+ u16 cp_cmd;
+ u16 intr_event;
+ u16 napi_event;
+ u16 intr_mask;
+
+ struct mdio_ops {
+ void (*write)(void __iomem *, int, int);
+ int (*read)(void __iomem *, int);
+ } mdio_ops;
+
+ struct pll_power_ops {
+ void (*down)(struct rtl8169_private *);
+ void (*up)(struct rtl8169_private *);
+ } pll_power_ops;
+
+ int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
+ int (*get_settings)(struct net_device *, struct ethtool_cmd *);
+ void (*phy_reset_enable)(struct rtl8169_private *tp);
+ void (*hw_start)(struct net_device *);
+ unsigned int (*phy_reset_pending)(struct rtl8169_private *tp);
+ unsigned int (*link_ok)(void __iomem *);
+ int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
+ struct delayed_work task;
+ unsigned features;
+
+ struct mii_if_info mii;
+ struct rtl8169_counters counters;
+ u32 saved_wolopts;
+
+ struct rtl_fw {
+ const struct firmware *fw;
+
+#define RTL_VER_SIZE 32
+
+ char version[RTL_VER_SIZE];
+
+ struct rtl_fw_phy_action {
+ __le32 *code;
+ size_t size;
+ } phy_action;
+ } *rtl_fw;
+#define RTL_FIRMWARE_UNKNOWN ERR_PTR(-EAGAIN)
+};
+
+MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
+MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
+module_param(use_dac, int, 0);
+MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
+module_param_named(debug, debug.msg_enable, int, 0);
+MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(RTL8169_VERSION);
+MODULE_FIRMWARE(FIRMWARE_8168D_1);
+MODULE_FIRMWARE(FIRMWARE_8168D_2);
+MODULE_FIRMWARE(FIRMWARE_8168E_1);
+MODULE_FIRMWARE(FIRMWARE_8168E_2);
+MODULE_FIRMWARE(FIRMWARE_8105E_1);
+
+static int rtl8169_open(struct net_device *dev);
+static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
+ struct net_device *dev);
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
+static int rtl8169_init_ring(struct net_device *dev);
+static void rtl_hw_start(struct net_device *dev);
+static int rtl8169_close(struct net_device *dev);
+static void rtl_set_rx_mode(struct net_device *dev);
+static void rtl8169_tx_timeout(struct net_device *dev);
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
+static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
+ void __iomem *, u32 budget);
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
+static void rtl8169_down(struct net_device *dev);
+static void rtl8169_rx_clear(struct rtl8169_private *tp);
+static int rtl8169_poll(struct napi_struct *napi, int budget);
+
+static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+
+ RTL_W32(OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
+ for (i = 0; i < 20; i++) {
+ udelay(100);
+ if (RTL_R32(OCPAR) & OCPAR_FLAG)
+ break;
+ }
+ return RTL_R32(OCPDR);
+}
+
+static void ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg, u32 data)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+
+ RTL_W32(OCPDR, data);
+ RTL_W32(OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
+ for (i = 0; i < 20; i++) {
+ udelay(100);
+ if ((RTL_R32(OCPAR) & OCPAR_FLAG) == 0)
+ break;
+ }
+}
+
+static void rtl8168_oob_notify(struct rtl8169_private *tp, u8 cmd)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+
+ RTL_W8(ERIDR, cmd);
+ RTL_W32(ERIAR, 0x800010e8);
+ msleep(2);
+ for (i = 0; i < 5; i++) {
+ udelay(100);
+ if (!(RTL_R32(ERIAR) & ERIAR_FLAG))
+ break;
+ }
+
+ ocp_write(tp, 0x1, 0x30, 0x00000001);
+}
+
+#define OOB_CMD_RESET 0x00
+#define OOB_CMD_DRIVER_START 0x05
+#define OOB_CMD_DRIVER_STOP 0x06
+
+static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
+{
+ return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
+}
+
+static void rtl8168_driver_start(struct rtl8169_private *tp)
+{
+ u16 reg;
+ int i;
+
+ rtl8168_oob_notify(tp, OOB_CMD_DRIVER_START);
+
+ reg = rtl8168_get_ocp_reg(tp);
+
+ for (i = 0; i < 10; i++) {
+ msleep(10);
+ if (ocp_read(tp, 0x0f, reg) & 0x00000800)
+ break;
+ }
+}
+
+static void rtl8168_driver_stop(struct rtl8169_private *tp)
+{
+ u16 reg;
+ int i;
+
+ rtl8168_oob_notify(tp, OOB_CMD_DRIVER_STOP);
+
+ reg = rtl8168_get_ocp_reg(tp);
+
+ for (i = 0; i < 10; i++) {
+ msleep(10);
+ if ((ocp_read(tp, 0x0f, reg) & 0x00000800) == 0)
+ break;
+ }
+}
+
+static int r8168dp_check_dash(struct rtl8169_private *tp)
+{
+ u16 reg = rtl8168_get_ocp_reg(tp);
+
+ return (ocp_read(tp, 0x0f, reg) & 0x00008000) ? 1 : 0;
+}
+
+static void r8169_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ int i;
+
+ RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
+
+ for (i = 20; i > 0; i--) {
+ /*
+ * Check if the RTL8169 has completed writing to the specified
+ * MII register.
+ */
+ if (!(RTL_R32(PHYAR) & 0x80000000))
+ break;
+ udelay(25);
+ }
+ /*
+ * According to hardware specs a 20us delay is required after write
+ * complete indication, but before sending next command.
+ */
+ udelay(20);
+}
+
+static int r8169_mdio_read(void __iomem *ioaddr, int reg_addr)
+{
+ int i, value = -1;
+
+ RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
+
+ for (i = 20; i > 0; i--) {
+ /*
+ * Check if the RTL8169 has completed retrieving data from
+ * the specified MII register.
+ */
+ if (RTL_R32(PHYAR) & 0x80000000) {
+ value = RTL_R32(PHYAR) & 0xffff;
+ break;
+ }
+ udelay(25);
+ }
+ /*
+ * According to hardware specs a 20us delay is required after read
+ * complete indication, but before sending next command.
+ */
+ udelay(20);
+
+ return value;
+}
+
+static void r8168dp_1_mdio_access(void __iomem *ioaddr, int reg_addr, u32 data)
+{
+ int i;
+
+ RTL_W32(OCPDR, data |
+ ((reg_addr & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
+ RTL_W32(OCPAR, OCPAR_GPHY_WRITE_CMD);
+ RTL_W32(EPHY_RXER_NUM, 0);
+
+ for (i = 0; i < 100; i++) {
+ mdelay(1);
+ if (!(RTL_R32(OCPAR) & OCPAR_FLAG))
+ break;
+ }
+}
+
+static void r8168dp_1_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_WRITE_CMD |
+ (value & OCPDR_DATA_MASK));
+}
+
+static int r8168dp_1_mdio_read(void __iomem *ioaddr, int reg_addr)
+{
+ int i;
+
+ r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_READ_CMD);
+
+ mdelay(1);
+ RTL_W32(OCPAR, OCPAR_GPHY_READ_CMD);
+ RTL_W32(EPHY_RXER_NUM, 0);
+
+ for (i = 0; i < 100; i++) {
+ mdelay(1);
+ if (RTL_R32(OCPAR) & OCPAR_FLAG)
+ break;
+ }
+
+ return RTL_R32(OCPDR) & OCPDR_DATA_MASK;
+}
+
+#define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
+
+static void r8168dp_2_mdio_start(void __iomem *ioaddr)
+{
+ RTL_W32(0xd0, RTL_R32(0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_stop(void __iomem *ioaddr)
+{
+ RTL_W32(0xd0, RTL_R32(0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ r8168dp_2_mdio_start(ioaddr);
+
+ r8169_mdio_write(ioaddr, reg_addr, value);
+
+ r8168dp_2_mdio_stop(ioaddr);
+}
+
+static int r8168dp_2_mdio_read(void __iomem *ioaddr, int reg_addr)
+{
+ int value;
+
+ r8168dp_2_mdio_start(ioaddr);
+
+ value = r8169_mdio_read(ioaddr, reg_addr);
+
+ r8168dp_2_mdio_stop(ioaddr);
+
+ return value;
+}
+
+static void rtl_writephy(struct rtl8169_private *tp, int location, u32 val)
+{
+ tp->mdio_ops.write(tp->mmio_addr, location, val);
+}
+
+static int rtl_readphy(struct rtl8169_private *tp, int location)
+{
+ return tp->mdio_ops.read(tp->mmio_addr, location);
+}
+
+static void rtl_patchphy(struct rtl8169_private *tp, int reg_addr, int value)
+{
+ rtl_writephy(tp, reg_addr, rtl_readphy(tp, reg_addr) | value);
+}
+
+static void rtl_w1w0_phy(struct rtl8169_private *tp, int reg_addr, int p, int m)
+{
+ int val;
+
+ val = rtl_readphy(tp, reg_addr);
+ rtl_writephy(tp, reg_addr, (val | p) & ~m);
+}
+
+static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
+ int val)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl_writephy(tp, location, val);
+}
+
+static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return rtl_readphy(tp, location);
+}
+
+static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ unsigned int i;
+
+ RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
+ (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
+
+ for (i = 0; i < 100; i++) {
+ if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
+ break;
+ udelay(10);
+ }
+}
+
+static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
+{
+ u16 value = 0xffff;
+ unsigned int i;
+
+ RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
+
+ for (i = 0; i < 100; i++) {
+ if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
+ value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
+ break;
+ }
+ udelay(10);
+ }
+
+ return value;
+}
+
+static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
+{
+ unsigned int i;
+
+ RTL_W32(CSIDR, value);
+ RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
+ CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
+
+ for (i = 0; i < 100; i++) {
+ if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
+ break;
+ udelay(10);
+ }
+}
+
+static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
+{
+ u32 value = ~0x00;
+ unsigned int i;
+
+ RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
+ CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
+
+ for (i = 0; i < 100; i++) {
+ if (RTL_R32(CSIAR) & CSIAR_FLAG) {
+ value = RTL_R32(CSIDR);
+ break;
+ }
+ udelay(10);
+ }
+
+ return value;
+}
+
+static
+void rtl_eri_write(void __iomem *ioaddr, int addr, u32 mask, u32 val, int type)
+{
+ unsigned int i;
+
+ BUG_ON((addr & 3) || (mask == 0));
+ RTL_W32(ERIDR, val);
+ RTL_W32(ERIAR, ERIAR_WRITE_CMD | type | mask | addr);
+
+ for (i = 0; i < 100; i++) {
+ if (!(RTL_R32(ERIAR) & ERIAR_FLAG))
+ break;
+ udelay(100);
+ }
+}
+
+static u32 rtl_eri_read(void __iomem *ioaddr, int addr, int type)
+{
+ u32 value = ~0x00;
+ unsigned int i;
+
+ RTL_W32(ERIAR, ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr);
+
+ for (i = 0; i < 100; i++) {
+ if (RTL_R32(ERIAR) & ERIAR_FLAG) {
+ value = RTL_R32(ERIDR);
+ break;
+ }
+ udelay(100);
+ }
+
+ return value;
+}
+
+static void
+rtl_w1w0_eri(void __iomem *ioaddr, int addr, u32 mask, u32 p, u32 m, int type)
+{
+ u32 val;
+
+ val = rtl_eri_read(ioaddr, addr, type);
+ rtl_eri_write(ioaddr, addr, mask, (val & ~m) | p, type);
+}
+
+struct exgmac_reg {
+ u16 addr;
+ u16 mask;
+ u32 val;
+};
+
+static void rtl_write_exgmac_batch(void __iomem *ioaddr,
+ const struct exgmac_reg *r, int len)
+{
+ while (len-- > 0) {
+ rtl_eri_write(ioaddr, r->addr, r->mask, r->val, ERIAR_EXGMAC);
+ r++;
+ }
+}
+
+static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
+{
+ u8 value = 0xff;
+ unsigned int i;
+
+ RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
+
+ for (i = 0; i < 300; i++) {
+ if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
+ value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
+ break;
+ }
+ udelay(100);
+ }
+
+ return value;
+}
+
+static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
+{
+ RTL_W16(IntrMask, 0x0000);
+
+ RTL_W16(IntrStatus, 0xffff);
+}
+
+static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ return RTL_R32(TBICSR) & TBIReset;
+}
+
+static unsigned int rtl8169_xmii_reset_pending(struct rtl8169_private *tp)
+{
+ return rtl_readphy(tp, MII_BMCR) & BMCR_RESET;
+}
+
+static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
+{
+ return RTL_R32(TBICSR) & TBILinkOk;
+}
+
+static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
+{
+ return RTL_R8(PHYstatus) & LinkStatus;
+}
+
+static void rtl8169_tbi_reset_enable(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
+}
+
+static void rtl8169_xmii_reset_enable(struct rtl8169_private *tp)
+{
+ unsigned int val;
+
+ val = rtl_readphy(tp, MII_BMCR) | BMCR_RESET;
+ rtl_writephy(tp, MII_BMCR, val & 0xffff);
+}
+
+static void rtl_link_chg_patch(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct net_device *dev = tp->dev;
+
+ if (!netif_running(dev))
+ return;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
+ if (RTL_R8(PHYstatus) & _1000bpsF) {
+ rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
+ 0x00000011, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
+ 0x00000005, ERIAR_EXGMAC);
+ } else if (RTL_R8(PHYstatus) & _100bps) {
+ rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
+ 0x0000001f, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
+ 0x00000005, ERIAR_EXGMAC);
+ } else {
+ rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
+ 0x0000001f, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
+ 0x0000003f, ERIAR_EXGMAC);
+ }
+ /* Reset packet filter */
+ rtl_w1w0_eri(ioaddr, 0xdc, ERIAR_MASK_0001, 0x00, 0x01,
+ ERIAR_EXGMAC);
+ rtl_w1w0_eri(ioaddr, 0xdc, ERIAR_MASK_0001, 0x01, 0x00,
+ ERIAR_EXGMAC);
+ }
+}
+
+static void __rtl8169_check_link_status(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr, bool pm)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ if (tp->link_ok(ioaddr)) {
+ rtl_link_chg_patch(tp);
+ /* This is to cancel a scheduled suspend if there's one. */
+ if (pm)
+ pm_request_resume(&tp->pci_dev->dev);
+ netif_carrier_on(dev);
+ if (net_ratelimit())
+ netif_info(tp, ifup, dev, "link up\n");
+ } else {
+ netif_carrier_off(dev);
+ netif_info(tp, ifdown, dev, "link down\n");
+ if (pm)
+ pm_schedule_suspend(&tp->pci_dev->dev, 100);
+ }
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static void rtl8169_check_link_status(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ __rtl8169_check_link_status(dev, tp, ioaddr, false);
+}
+
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+
+static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 options;
+ u32 wolopts = 0;
+
+ options = RTL_R8(Config1);
+ if (!(options & PMEnable))
+ return 0;
+
+ options = RTL_R8(Config3);
+ if (options & LinkUp)
+ wolopts |= WAKE_PHY;
+ if (options & MagicPacket)
+ wolopts |= WAKE_MAGIC;
+
+ options = RTL_R8(Config5);
+ if (options & UWF)
+ wolopts |= WAKE_UCAST;
+ if (options & BWF)
+ wolopts |= WAKE_BCAST;
+ if (options & MWF)
+ wolopts |= WAKE_MCAST;
+
+ return wolopts;
+}
+
+static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ spin_lock_irq(&tp->lock);
+
+ wol->supported = WAKE_ANY;
+ wol->wolopts = __rtl8169_get_wol(tp);
+
+ spin_unlock_irq(&tp->lock);
+}
+
+static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+ static const struct {
+ u32 opt;
+ u16 reg;
+ u8 mask;
+ } cfg[] = {
+ { WAKE_ANY, Config1, PMEnable },
+ { WAKE_PHY, Config3, LinkUp },
+ { WAKE_MAGIC, Config3, MagicPacket },
+ { WAKE_UCAST, Config5, UWF },
+ { WAKE_BCAST, Config5, BWF },
+ { WAKE_MCAST, Config5, MWF },
+ { WAKE_ANY, Config5, LanWake }
+ };
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ for (i = 0; i < ARRAY_SIZE(cfg); i++) {
+ u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
+ if (wolopts & cfg[i].opt)
+ options |= cfg[i].mask;
+ RTL_W8(cfg[i].reg, options);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+}
+
+static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ spin_lock_irq(&tp->lock);
+
+ if (wol->wolopts)
+ tp->features |= RTL_FEATURE_WOL;
+ else
+ tp->features &= ~RTL_FEATURE_WOL;
+ __rtl8169_set_wol(tp, wol->wolopts);
+ spin_unlock_irq(&tp->lock);
+
+ device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
+
+ return 0;
+}
+
+static const char *rtl_lookup_firmware_name(struct rtl8169_private *tp)
+{
+ return rtl_chip_infos[tp->mac_version].fw_name;
+}
+
+static void rtl8169_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct rtl_fw *rtl_fw = tp->rtl_fw;
+
+ strcpy(info->driver, MODULENAME);
+ strcpy(info->version, RTL8169_VERSION);
+ strcpy(info->bus_info, pci_name(tp->pci_dev));
+ BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
+ strcpy(info->fw_version, IS_ERR_OR_NULL(rtl_fw) ? "N/A" :
+ rtl_fw->version);
+}
+
+static int rtl8169_get_regs_len(struct net_device *dev)
+{
+ return R8169_REGS_SIZE;
+}
+
+static int rtl8169_set_speed_tbi(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex, u32 ignored)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int ret = 0;
+ u32 reg;
+
+ reg = RTL_R32(TBICSR);
+ if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
+ (duplex == DUPLEX_FULL)) {
+ RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
+ } else if (autoneg == AUTONEG_ENABLE)
+ RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
+ else {
+ netif_warn(tp, link, dev,
+ "incorrect speed setting refused in TBI mode\n");
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static int rtl8169_set_speed_xmii(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex, u32 adv)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int giga_ctrl, bmcr;
+ int rc = -EINVAL;
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ if (autoneg == AUTONEG_ENABLE) {
+ int auto_nego;
+
+ auto_nego = rtl_readphy(tp, MII_ADVERTISE);
+ auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+
+ if (adv & ADVERTISED_10baseT_Half)
+ auto_nego |= ADVERTISE_10HALF;
+ if (adv & ADVERTISED_10baseT_Full)
+ auto_nego |= ADVERTISE_10FULL;
+ if (adv & ADVERTISED_100baseT_Half)
+ auto_nego |= ADVERTISE_100HALF;
+ if (adv & ADVERTISED_100baseT_Full)
+ auto_nego |= ADVERTISE_100FULL;
+
+ auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+
+ giga_ctrl = rtl_readphy(tp, MII_CTRL1000);
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+
+ /* The 8100e/8101e/8102e do Fast Ethernet only. */
+ if (tp->mii.supports_gmii) {
+ if (adv & ADVERTISED_1000baseT_Half)
+ giga_ctrl |= ADVERTISE_1000HALF;
+ if (adv & ADVERTISED_1000baseT_Full)
+ giga_ctrl |= ADVERTISE_1000FULL;
+ } else if (adv & (ADVERTISED_1000baseT_Half |
+ ADVERTISED_1000baseT_Full)) {
+ netif_info(tp, link, dev,
+ "PHY does not support 1000Mbps\n");
+ goto out;
+ }
+
+ bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+
+ rtl_writephy(tp, MII_ADVERTISE, auto_nego);
+ rtl_writephy(tp, MII_CTRL1000, giga_ctrl);
+ } else {
+ giga_ctrl = 0;
+
+ if (speed == SPEED_10)
+ bmcr = 0;
+ else if (speed == SPEED_100)
+ bmcr = BMCR_SPEED100;
+ else
+ goto out;
+
+ if (duplex == DUPLEX_FULL)
+ bmcr |= BMCR_FULLDPLX;
+ }
+
+ rtl_writephy(tp, MII_BMCR, bmcr);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_03) {
+ if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
+ rtl_writephy(tp, 0x17, 0x2138);
+ rtl_writephy(tp, 0x0e, 0x0260);
+ } else {
+ rtl_writephy(tp, 0x17, 0x2108);
+ rtl_writephy(tp, 0x0e, 0x0000);
+ }
+ }
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int rtl8169_set_speed(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex, u32 advertising)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret;
+
+ ret = tp->set_speed(dev, autoneg, speed, duplex, advertising);
+ if (ret < 0)
+ goto out;
+
+ if (netif_running(dev) && (autoneg == AUTONEG_ENABLE) &&
+ (advertising & ADVERTISED_1000baseT_Full)) {
+ mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
+ }
+out:
+ return ret;
+}
+
+static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+ int ret;
+
+ del_timer_sync(&tp->timer);
+
+ spin_lock_irqsave(&tp->lock, flags);
+ ret = rtl8169_set_speed(dev, cmd->autoneg, ethtool_cmd_speed(cmd),
+ cmd->duplex, cmd->advertising);
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return ret;
+}
+
+static u32 rtl8169_fix_features(struct net_device *dev, u32 features)
+{
+ if (dev->mtu > TD_MSS_MAX)
+ features &= ~NETIF_F_ALL_TSO;
+
+ return features;
+}
+
+static int rtl8169_set_features(struct net_device *dev, u32 features)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ if (features & NETIF_F_RXCSUM)
+ tp->cp_cmd |= RxChkSum;
+ else
+ tp->cp_cmd &= ~RxChkSum;
+
+ if (dev->features & NETIF_F_HW_VLAN_RX)
+ tp->cp_cmd |= RxVlan;
+ else
+ tp->cp_cmd &= ~RxVlan;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ RTL_R16(CPlusCmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return 0;
+}
+
+static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ return (vlan_tx_tag_present(skb)) ?
+ TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
+}
+
+static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+
+ if (opts2 & RxVlanTag)
+ __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
+
+ desc->opts2 = 0;
+}
+
+static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 status;
+
+ cmd->supported =
+ SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
+ cmd->port = PORT_FIBRE;
+ cmd->transceiver = XCVR_INTERNAL;
+
+ status = RTL_R32(TBICSR);
+ cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
+ cmd->autoneg = !!(status & TBINwEnable);
+
+ ethtool_cmd_speed_set(cmd, SPEED_1000);
+ cmd->duplex = DUPLEX_FULL; /* Always set */
+
+ return 0;
+}
+
+static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return mii_ethtool_gset(&tp->mii, cmd);
+}
+
+static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ rc = tp->get_settings(dev, cmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+ return rc;
+}
+
+static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (regs->len > R8169_REGS_SIZE)
+ regs->len = R8169_REGS_SIZE;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ memcpy_fromio(p, tp->mmio_addr, regs->len);
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static u32 rtl8169_get_msglevel(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->msg_enable;
+}
+
+static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ tp->msg_enable = value;
+}
+
+static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
+ "tx_packets",
+ "rx_packets",
+ "tx_errors",
+ "rx_errors",
+ "rx_missed",
+ "align_errors",
+ "tx_single_collisions",
+ "tx_multi_collisions",
+ "unicast",
+ "broadcast",
+ "multicast",
+ "tx_aborted",
+ "tx_underrun",
+};
+
+static int rtl8169_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(rtl8169_gstrings);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8169_update_counters(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct device *d = &tp->pci_dev->dev;
+ struct rtl8169_counters *counters;
+ dma_addr_t paddr;
+ u32 cmd;
+ int wait = 1000;
+
+ /*
+ * Some chips are unable to dump tally counters when the receiver
+ * is disabled.
+ */
+ if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
+ return;
+
+ counters = dma_alloc_coherent(d, sizeof(*counters), &paddr, GFP_KERNEL);
+ if (!counters)
+ return;
+
+ RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
+ cmd = (u64)paddr & DMA_BIT_MASK(32);
+ RTL_W32(CounterAddrLow, cmd);
+ RTL_W32(CounterAddrLow, cmd | CounterDump);
+
+ while (wait--) {
+ if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
+ memcpy(&tp->counters, counters, sizeof(*counters));
+ break;
+ }
+ udelay(10);
+ }
+
+ RTL_W32(CounterAddrLow, 0);
+ RTL_W32(CounterAddrHigh, 0);
+
+ dma_free_coherent(d, sizeof(*counters), counters, paddr);
+}
+
+static void rtl8169_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ ASSERT_RTNL();
+
+ rtl8169_update_counters(dev);
+
+ data[0] = le64_to_cpu(tp->counters.tx_packets);
+ data[1] = le64_to_cpu(tp->counters.rx_packets);
+ data[2] = le64_to_cpu(tp->counters.tx_errors);
+ data[3] = le32_to_cpu(tp->counters.rx_errors);
+ data[4] = le16_to_cpu(tp->counters.rx_missed);
+ data[5] = le16_to_cpu(tp->counters.align_errors);
+ data[6] = le32_to_cpu(tp->counters.tx_one_collision);
+ data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
+ data[8] = le64_to_cpu(tp->counters.rx_unicast);
+ data[9] = le64_to_cpu(tp->counters.rx_broadcast);
+ data[10] = le32_to_cpu(tp->counters.rx_multicast);
+ data[11] = le16_to_cpu(tp->counters.tx_aborted);
+ data[12] = le16_to_cpu(tp->counters.tx_underun);
+}
+
+static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch(stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
+ break;
+ }
+}
+
+static const struct ethtool_ops rtl8169_ethtool_ops = {
+ .get_drvinfo = rtl8169_get_drvinfo,
+ .get_regs_len = rtl8169_get_regs_len,
+ .get_link = ethtool_op_get_link,
+ .get_settings = rtl8169_get_settings,
+ .set_settings = rtl8169_set_settings,
+ .get_msglevel = rtl8169_get_msglevel,
+ .set_msglevel = rtl8169_set_msglevel,
+ .get_regs = rtl8169_get_regs,
+ .get_wol = rtl8169_get_wol,
+ .set_wol = rtl8169_set_wol,
+ .get_strings = rtl8169_get_strings,
+ .get_sset_count = rtl8169_get_sset_count,
+ .get_ethtool_stats = rtl8169_get_ethtool_stats,
+};
+
+static void rtl8169_get_mac_version(struct rtl8169_private *tp,
+ struct net_device *dev, u8 default_version)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ /*
+ * The driver currently handles the 8168Bf and the 8168Be identically
+ * but they can be identified more specifically through the test below
+ * if needed:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
+ *
+ * Same thing for the 8101Eb and the 8101Ec:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
+ */
+ static const struct rtl_mac_info {
+ u32 mask;
+ u32 val;
+ int mac_version;
+ } mac_info[] = {
+ /* 8168E family. */
+ { 0x7c800000, 0x2c800000, RTL_GIGA_MAC_VER_34 },
+ { 0x7cf00000, 0x2c200000, RTL_GIGA_MAC_VER_33 },
+ { 0x7cf00000, 0x2c100000, RTL_GIGA_MAC_VER_32 },
+ { 0x7c800000, 0x2c000000, RTL_GIGA_MAC_VER_33 },
+
+ /* 8168D family. */
+ { 0x7cf00000, 0x28300000, RTL_GIGA_MAC_VER_26 },
+ { 0x7cf00000, 0x28100000, RTL_GIGA_MAC_VER_25 },
+ { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_26 },
+
+ /* 8168DP family. */
+ { 0x7cf00000, 0x28800000, RTL_GIGA_MAC_VER_27 },
+ { 0x7cf00000, 0x28a00000, RTL_GIGA_MAC_VER_28 },
+ { 0x7cf00000, 0x28b00000, RTL_GIGA_MAC_VER_31 },
+
+ /* 8168C family. */
+ { 0x7cf00000, 0x3cb00000, RTL_GIGA_MAC_VER_24 },
+ { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 },
+ { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
+ { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 },
+ { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
+ { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
+ { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 },
+ { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 },
+ { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 },
+
+ /* 8168B family. */
+ { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
+ { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
+
+ /* 8101 family. */
+ { 0x7cf00000, 0x40b00000, RTL_GIGA_MAC_VER_30 },
+ { 0x7cf00000, 0x40a00000, RTL_GIGA_MAC_VER_30 },
+ { 0x7cf00000, 0x40900000, RTL_GIGA_MAC_VER_29 },
+ { 0x7c800000, 0x40800000, RTL_GIGA_MAC_VER_30 },
+ { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 },
+ { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 },
+ { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 },
+ { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 },
+ { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 },
+ { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 },
+ { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
+ { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 },
+ { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
+ { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 },
+ { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 },
+ { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
+ /* FIXME: where did these entries come from ? -- FR */
+ { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
+ { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
+
+ /* 8110 family. */
+ { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
+ { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
+ { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
+ { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
+ { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
+ { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
+
+ /* Catch-all */
+ { 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE }
+ };
+ const struct rtl_mac_info *p = mac_info;
+ u32 reg;
+
+ reg = RTL_R32(TxConfig);
+ while ((reg & p->mask) != p->val)
+ p++;
+ tp->mac_version = p->mac_version;
+
+ if (tp->mac_version == RTL_GIGA_MAC_NONE) {
+ netif_notice(tp, probe, dev,
+ "unknown MAC, using family default\n");
+ tp->mac_version = default_version;
+ }
+}
+
+static void rtl8169_print_mac_version(struct rtl8169_private *tp)
+{
+ dprintk("mac_version = 0x%02x\n", tp->mac_version);
+}
+
+struct phy_reg {
+ u16 reg;
+ u16 val;
+};
+
+static void rtl_writephy_batch(struct rtl8169_private *tp,
+ const struct phy_reg *regs, int len)
+{
+ while (len-- > 0) {
+ rtl_writephy(tp, regs->reg, regs->val);
+ regs++;
+ }
+}
+
+#define PHY_READ 0x00000000
+#define PHY_DATA_OR 0x10000000
+#define PHY_DATA_AND 0x20000000
+#define PHY_BJMPN 0x30000000
+#define PHY_READ_EFUSE 0x40000000
+#define PHY_READ_MAC_BYTE 0x50000000
+#define PHY_WRITE_MAC_BYTE 0x60000000
+#define PHY_CLEAR_READCOUNT 0x70000000
+#define PHY_WRITE 0x80000000
+#define PHY_READCOUNT_EQ_SKIP 0x90000000
+#define PHY_COMP_EQ_SKIPN 0xa0000000
+#define PHY_COMP_NEQ_SKIPN 0xb0000000
+#define PHY_WRITE_PREVIOUS 0xc0000000
+#define PHY_SKIPN 0xd0000000
+#define PHY_DELAY_MS 0xe0000000
+#define PHY_WRITE_ERI_WORD 0xf0000000
+
+struct fw_info {
+ u32 magic;
+ char version[RTL_VER_SIZE];
+ __le32 fw_start;
+ __le32 fw_len;
+ u8 chksum;
+} __packed;
+
+#define FW_OPCODE_SIZE sizeof(typeof(*((struct rtl_fw_phy_action *)0)->code))
+
+static bool rtl_fw_format_ok(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
+{
+ const struct firmware *fw = rtl_fw->fw;
+ struct fw_info *fw_info = (struct fw_info *)fw->data;
+ struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
+ char *version = rtl_fw->version;
+ bool rc = false;
+
+ if (fw->size < FW_OPCODE_SIZE)
+ goto out;
+
+ if (!fw_info->magic) {
+ size_t i, size, start;
+ u8 checksum = 0;
+
+ if (fw->size < sizeof(*fw_info))
+ goto out;
+
+ for (i = 0; i < fw->size; i++)
+ checksum += fw->data[i];
+ if (checksum != 0)
+ goto out;
+
+ start = le32_to_cpu(fw_info->fw_start);
+ if (start > fw->size)
+ goto out;
+
+ size = le32_to_cpu(fw_info->fw_len);
+ if (size > (fw->size - start) / FW_OPCODE_SIZE)
+ goto out;
+
+ memcpy(version, fw_info->version, RTL_VER_SIZE);
+
+ pa->code = (__le32 *)(fw->data + start);
+ pa->size = size;
+ } else {
+ if (fw->size % FW_OPCODE_SIZE)
+ goto out;
+
+ strlcpy(version, rtl_lookup_firmware_name(tp), RTL_VER_SIZE);
+
+ pa->code = (__le32 *)fw->data;
+ pa->size = fw->size / FW_OPCODE_SIZE;
+ }
+ version[RTL_VER_SIZE - 1] = 0;
+
+ rc = true;
+out:
+ return rc;
+}
+
+static bool rtl_fw_data_ok(struct rtl8169_private *tp, struct net_device *dev,
+ struct rtl_fw_phy_action *pa)
+{
+ bool rc = false;
+ size_t index;
+
+ for (index = 0; index < pa->size; index++) {
+ u32 action = le32_to_cpu(pa->code[index]);
+ u32 regno = (action & 0x0fff0000) >> 16;
+
+ switch(action & 0xf0000000) {
+ case PHY_READ:
+ case PHY_DATA_OR:
+ case PHY_DATA_AND:
+ case PHY_READ_EFUSE:
+ case PHY_CLEAR_READCOUNT:
+ case PHY_WRITE:
+ case PHY_WRITE_PREVIOUS:
+ case PHY_DELAY_MS:
+ break;
+
+ case PHY_BJMPN:
+ if (regno > index) {
+ netif_err(tp, ifup, tp->dev,
+ "Out of range of firmware\n");
+ goto out;
+ }
+ break;
+ case PHY_READCOUNT_EQ_SKIP:
+ if (index + 2 >= pa->size) {
+ netif_err(tp, ifup, tp->dev,
+ "Out of range of firmware\n");
+ goto out;
+ }
+ break;
+ case PHY_COMP_EQ_SKIPN:
+ case PHY_COMP_NEQ_SKIPN:
+ case PHY_SKIPN:
+ if (index + 1 + regno >= pa->size) {
+ netif_err(tp, ifup, tp->dev,
+ "Out of range of firmware\n");
+ goto out;
+ }
+ break;
+
+ case PHY_READ_MAC_BYTE:
+ case PHY_WRITE_MAC_BYTE:
+ case PHY_WRITE_ERI_WORD:
+ default:
+ netif_err(tp, ifup, tp->dev,
+ "Invalid action 0x%08x\n", action);
+ goto out;
+ }
+ }
+ rc = true;
+out:
+ return rc;
+}
+
+static int rtl_check_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
+{
+ struct net_device *dev = tp->dev;
+ int rc = -EINVAL;
+
+ if (!rtl_fw_format_ok(tp, rtl_fw)) {
+ netif_err(tp, ifup, dev, "invalid firwmare\n");
+ goto out;
+ }
+
+ if (rtl_fw_data_ok(tp, dev, &rtl_fw->phy_action))
+ rc = 0;
+out:
+ return rc;
+}
+
+static void rtl_phy_write_fw(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
+{
+ struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
+ u32 predata, count;
+ size_t index;
+
+ predata = count = 0;
+
+ for (index = 0; index < pa->size; ) {
+ u32 action = le32_to_cpu(pa->code[index]);
+ u32 data = action & 0x0000ffff;
+ u32 regno = (action & 0x0fff0000) >> 16;
+
+ if (!action)
+ break;
+
+ switch(action & 0xf0000000) {
+ case PHY_READ:
+ predata = rtl_readphy(tp, regno);
+ count++;
+ index++;
+ break;
+ case PHY_DATA_OR:
+ predata |= data;
+ index++;
+ break;
+ case PHY_DATA_AND:
+ predata &= data;
+ index++;
+ break;
+ case PHY_BJMPN:
+ index -= regno;
+ break;
+ case PHY_READ_EFUSE:
+ predata = rtl8168d_efuse_read(tp->mmio_addr, regno);
+ index++;
+ break;
+ case PHY_CLEAR_READCOUNT:
+ count = 0;
+ index++;
+ break;
+ case PHY_WRITE:
+ rtl_writephy(tp, regno, data);
+ index++;
+ break;
+ case PHY_READCOUNT_EQ_SKIP:
+ index += (count == data) ? 2 : 1;
+ break;
+ case PHY_COMP_EQ_SKIPN:
+ if (predata == data)
+ index += regno;
+ index++;
+ break;
+ case PHY_COMP_NEQ_SKIPN:
+ if (predata != data)
+ index += regno;
+ index++;
+ break;
+ case PHY_WRITE_PREVIOUS:
+ rtl_writephy(tp, regno, predata);
+ index++;
+ break;
+ case PHY_SKIPN:
+ index += regno + 1;
+ break;
+ case PHY_DELAY_MS:
+ mdelay(data);
+ index++;
+ break;
+
+ case PHY_READ_MAC_BYTE:
+ case PHY_WRITE_MAC_BYTE:
+ case PHY_WRITE_ERI_WORD:
+ default:
+ BUG();
+ }
+ }
+}
+
+static void rtl_release_firmware(struct rtl8169_private *tp)
+{
+ if (!IS_ERR_OR_NULL(tp->rtl_fw)) {
+ release_firmware(tp->rtl_fw->fw);
+ kfree(tp->rtl_fw);
+ }
+ tp->rtl_fw = RTL_FIRMWARE_UNKNOWN;
+}
+
+static void rtl_apply_firmware(struct rtl8169_private *tp)
+{
+ struct rtl_fw *rtl_fw = tp->rtl_fw;
+
+ /* TODO: release firmware once rtl_phy_write_fw signals failures. */
+ if (!IS_ERR_OR_NULL(rtl_fw))
+ rtl_phy_write_fw(tp, rtl_fw);
+}
+
+static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
+{
+ if (rtl_readphy(tp, reg) != val)
+ netif_warn(tp, hw, tp->dev, "chipset not ready for firmware\n");
+ else
+ rtl_apply_firmware(tp);
+}
+
+static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x06, 0x006e },
+ { 0x08, 0x0708 },
+ { 0x15, 0x4000 },
+ { 0x18, 0x65c7 },
+
+ { 0x1f, 0x0001 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x0000 },
+
+ { 0x03, 0xff41 },
+ { 0x02, 0xdf60 },
+ { 0x01, 0x0140 },
+ { 0x00, 0x0077 },
+ { 0x04, 0x7800 },
+ { 0x04, 0x7000 },
+
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf0f9 },
+ { 0x04, 0x9800 },
+ { 0x04, 0x9000 },
+
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xa000 },
+
+ { 0x03, 0xff41 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x0140 },
+ { 0x00, 0x00bb },
+ { 0x04, 0xb800 },
+ { 0x04, 0xb000 },
+
+ { 0x03, 0xdf41 },
+ { 0x02, 0xdc60 },
+ { 0x01, 0x6340 },
+ { 0x00, 0x007d },
+ { 0x04, 0xd800 },
+ { 0x04, 0xd000 },
+
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x100a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0xf000 },
+
+ { 0x1f, 0x0000 },
+ { 0x0b, 0x0000 },
+ { 0x00, 0x9200 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x01, 0x90d0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp)
+{
+ struct pci_dev *pdev = tp->pci_dev;
+
+ if ((pdev->subsystem_vendor != PCI_VENDOR_ID_GIGABYTE) ||
+ (pdev->subsystem_device != 0xe000))
+ return;
+
+ rtl_writephy(tp, 0x1f, 0x0001);
+ rtl_writephy(tp, 0x10, 0xf01b);
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x04, 0x0000 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x9000 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0xa000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xf000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x101a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x10, 0xf41b },
+ { 0x14, 0xfb54 },
+ { 0x18, 0xf5c7 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ rtl8169scd_hw_phy_config_quirk(tp);
+}
+
+static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x04, 0x0000 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x9000 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0xa000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xf000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x101a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x0b, 0x8480 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x18, 0x67c7 },
+ { 0x04, 0x2000 },
+ { 0x03, 0x002f },
+ { 0x02, 0x4360 },
+ { 0x01, 0x0109 },
+ { 0x00, 0x3022 },
+ { 0x04, 0x2800 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x10, 0xf41b },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy(tp, 0x1f, 0x0001);
+ rtl_patchphy(tp, 0x16, 1 << 0);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x10, 0xf41b },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0000 },
+ { 0x1d, 0x0f00 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x1ec8 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x1d, 0x3d98 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_patchphy(tp, 0x14, 1 << 5);
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0002 },
+ { 0x00, 0x88d4 },
+ { 0x01, 0x82b1 },
+ { 0x03, 0x7002 },
+ { 0x08, 0x9e30 },
+ { 0x09, 0x01f0 },
+ { 0x0a, 0x5500 },
+ { 0x0c, 0x00c8 },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xc096 },
+ { 0x16, 0x000a },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0000 },
+ { 0x09, 0x2000 },
+ { 0x09, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ rtl_patchphy(tp, 0x14, 1 << 5);
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0x9000 },
+ { 0x1d, 0x3d98 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x06, 0x0761 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ rtl_patchphy(tp, 0x16, 1 << 0);
+ rtl_patchphy(tp, 0x14, 1 << 5);
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1d, 0x3d98 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x06, 0x5461 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ rtl_patchphy(tp, 0x16, 1 << 0);
+ rtl_patchphy(tp, 0x14, 1 << 5);
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8168c_4_hw_phy_config(struct rtl8169_private *tp)
+{
+ rtl8168c_3_hw_phy_config(tp);
+}
+
+static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init_0[] = {
+ /* Channel Estimation */
+ { 0x1f, 0x0001 },
+ { 0x06, 0x4064 },
+ { 0x07, 0x2863 },
+ { 0x08, 0x059c },
+ { 0x09, 0x26b4 },
+ { 0x0a, 0x6a19 },
+ { 0x0b, 0xdcc8 },
+ { 0x10, 0xf06d },
+ { 0x14, 0x7f68 },
+ { 0x18, 0x7fd9 },
+ { 0x1c, 0xf0ff },
+ { 0x1d, 0x3d9c },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xf49f },
+ { 0x13, 0x070b },
+ { 0x1a, 0x05ad },
+ { 0x14, 0x94c0 },
+
+ /*
+ * Tx Error Issue
+ * Enhance line driver power
+ */
+ { 0x1f, 0x0002 },
+ { 0x06, 0x5561 },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8332 },
+ { 0x06, 0x5561 },
+
+ /*
+ * Can not link to 1Gbps with bad cable
+ * Decrease SNR threshold form 21.07dB to 19.04dB
+ */
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0000 },
+ { 0x0d, 0xf880 }
+ };
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
+
+ /*
+ * Rx Error Issue
+ * Fine Tune Switching regulator parameter
+ */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_w1w0_phy(tp, 0x0b, 0x0010, 0x00ef);
+ rtl_w1w0_phy(tp, 0x0c, 0xa200, 0x5d00);
+
+ if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x05, 0x669a },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8330 },
+ { 0x06, 0x669a },
+ { 0x1f, 0x0002 }
+ };
+ int val;
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ val = rtl_readphy(tp, 0x0d);
+
+ if ((val & 0x00ff) != 0x006c) {
+ static const u32 set[] = {
+ 0x0065, 0x0066, 0x0067, 0x0068,
+ 0x0069, 0x006a, 0x006b, 0x006c
+ };
+ int i;
+
+ rtl_writephy(tp, 0x1f, 0x0002);
+
+ val &= 0xff00;
+ for (i = 0; i < ARRAY_SIZE(set); i++)
+ rtl_writephy(tp, 0x0d, val | set[i]);
+ }
+ } else {
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x05, 0x6662 },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8330 },
+ { 0x06, 0x6662 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+ }
+
+ /* RSET couple improve */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_patchphy(tp, 0x0d, 0x0300);
+ rtl_patchphy(tp, 0x0f, 0x0010);
+
+ /* Fine tune PLL performance */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
+ rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
+
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x001b);
+
+ rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xbf00);
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init_0[] = {
+ /* Channel Estimation */
+ { 0x1f, 0x0001 },
+ { 0x06, 0x4064 },
+ { 0x07, 0x2863 },
+ { 0x08, 0x059c },
+ { 0x09, 0x26b4 },
+ { 0x0a, 0x6a19 },
+ { 0x0b, 0xdcc8 },
+ { 0x10, 0xf06d },
+ { 0x14, 0x7f68 },
+ { 0x18, 0x7fd9 },
+ { 0x1c, 0xf0ff },
+ { 0x1d, 0x3d9c },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xf49f },
+ { 0x13, 0x070b },
+ { 0x1a, 0x05ad },
+ { 0x14, 0x94c0 },
+
+ /*
+ * Tx Error Issue
+ * Enhance line driver power
+ */
+ { 0x1f, 0x0002 },
+ { 0x06, 0x5561 },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8332 },
+ { 0x06, 0x5561 },
+
+ /*
+ * Can not link to 1Gbps with bad cable
+ * Decrease SNR threshold form 21.07dB to 19.04dB
+ */
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0000 },
+ { 0x0d, 0xf880 }
+ };
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
+
+ if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x05, 0x669a },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8330 },
+ { 0x06, 0x669a },
+
+ { 0x1f, 0x0002 }
+ };
+ int val;
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ val = rtl_readphy(tp, 0x0d);
+ if ((val & 0x00ff) != 0x006c) {
+ static const u32 set[] = {
+ 0x0065, 0x0066, 0x0067, 0x0068,
+ 0x0069, 0x006a, 0x006b, 0x006c
+ };
+ int i;
+
+ rtl_writephy(tp, 0x1f, 0x0002);
+
+ val &= 0xff00;
+ for (i = 0; i < ARRAY_SIZE(set); i++)
+ rtl_writephy(tp, 0x0d, val | set[i]);
+ }
+ } else {
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x05, 0x2642 },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8330 },
+ { 0x06, 0x2642 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+ }
+
+ /* Fine tune PLL performance */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
+ rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
+
+ /* Switching regulator Slew rate */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_patchphy(tp, 0x0f, 0x0017);
+
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x001b);
+
+ rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xb300);
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x10, 0x0008 },
+ { 0x0d, 0x006c },
+
+ { 0x1f, 0x0000 },
+ { 0x0d, 0xf880 },
+
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0001 },
+ { 0x0b, 0xa4d8 },
+ { 0x09, 0x281c },
+ { 0x07, 0x2883 },
+ { 0x0a, 0x6b35 },
+ { 0x1d, 0x3da4 },
+ { 0x1c, 0xeffd },
+ { 0x14, 0x7f52 },
+ { 0x18, 0x7fc6 },
+ { 0x08, 0x0601 },
+ { 0x06, 0x4063 },
+ { 0x10, 0xf074 },
+ { 0x1f, 0x0003 },
+ { 0x13, 0x0789 },
+ { 0x12, 0xf4bd },
+ { 0x1a, 0x04fd },
+ { 0x14, 0x84b0 },
+ { 0x1f, 0x0000 },
+ { 0x00, 0x9200 },
+
+ { 0x1f, 0x0005 },
+ { 0x01, 0x0340 },
+ { 0x1f, 0x0001 },
+ { 0x04, 0x4000 },
+ { 0x03, 0x1d21 },
+ { 0x02, 0x0c32 },
+ { 0x01, 0x0200 },
+ { 0x00, 0x5554 },
+ { 0x04, 0x4800 },
+ { 0x04, 0x4000 },
+ { 0x04, 0xf000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x101a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0xf000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x0023 },
+ { 0x16, 0x0000 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x002d },
+ { 0x18, 0x0040 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+}
+
+static void rtl8168e_1_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ /* Enable Delay cap */
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8b80 },
+ { 0x06, 0xc896 },
+ { 0x1f, 0x0000 },
+
+ /* Channel estimation fine tune */
+ { 0x1f, 0x0001 },
+ { 0x0b, 0x6c20 },
+ { 0x07, 0x2872 },
+ { 0x1c, 0xefff },
+ { 0x1f, 0x0003 },
+ { 0x14, 0x6420 },
+ { 0x1f, 0x0000 },
+
+ /* Update PFM & 10M TX idle timer */
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x002f },
+ { 0x15, 0x1919 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x00ac },
+ { 0x18, 0x0006 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_apply_firmware(tp);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ /* DCO enable for 10M IDLE Power */
+ rtl_writephy(tp, 0x1f, 0x0007);
+ rtl_writephy(tp, 0x1e, 0x0023);
+ rtl_w1w0_phy(tp, 0x17, 0x0006, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ /* For impedance matching */
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_w1w0_phy(tp, 0x08, 0x8000, 0x7f00);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ /* PHY auto speed down */
+ rtl_writephy(tp, 0x1f, 0x0007);
+ rtl_writephy(tp, 0x1e, 0x002d);
+ rtl_w1w0_phy(tp, 0x18, 0x0050, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_w1w0_phy(tp, 0x14, 0x8000, 0x0000);
+
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b86);
+ rtl_w1w0_phy(tp, 0x06, 0x0001, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b85);
+ rtl_w1w0_phy(tp, 0x06, 0x0000, 0x2000);
+ rtl_writephy(tp, 0x1f, 0x0007);
+ rtl_writephy(tp, 0x1e, 0x0020);
+ rtl_w1w0_phy(tp, 0x15, 0x0000, 0x1100);
+ rtl_writephy(tp, 0x1f, 0x0006);
+ rtl_writephy(tp, 0x00, 0x5a00);
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, 0x0d, 0x0007);
+ rtl_writephy(tp, 0x0e, 0x003c);
+ rtl_writephy(tp, 0x0d, 0x4007);
+ rtl_writephy(tp, 0x0e, 0x0000);
+ rtl_writephy(tp, 0x0d, 0x0000);
+}
+
+static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ /* Enable Delay cap */
+ { 0x1f, 0x0004 },
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x00ac },
+ { 0x18, 0x0006 },
+ { 0x1f, 0x0002 },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ /* Channel estimation fine tune */
+ { 0x1f, 0x0003 },
+ { 0x09, 0xa20f },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ /* Green Setting */
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8b5b },
+ { 0x06, 0x9222 },
+ { 0x05, 0x8b6d },
+ { 0x06, 0x8000 },
+ { 0x05, 0x8b76 },
+ { 0x06, 0x8000 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_apply_firmware(tp);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ /* For 4-corner performance improve */
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b80);
+ rtl_w1w0_phy(tp, 0x17, 0x0006, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ /* PHY auto speed down */
+ rtl_writephy(tp, 0x1f, 0x0004);
+ rtl_writephy(tp, 0x1f, 0x0007);
+ rtl_writephy(tp, 0x1e, 0x002d);
+ rtl_w1w0_phy(tp, 0x18, 0x0010, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_w1w0_phy(tp, 0x14, 0x8000, 0x0000);
+
+ /* improve 10M EEE waveform */
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b86);
+ rtl_w1w0_phy(tp, 0x06, 0x0001, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ /* Improve 2-pair detection performance */
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b85);
+ rtl_w1w0_phy(tp, 0x06, 0x4000, 0x0000);
+ rtl_writephy(tp, 0x1f, 0x0000);
+
+ /* EEE setting */
+ rtl_w1w0_eri(tp->mmio_addr, 0x1b0, ERIAR_MASK_1111, 0x0000, 0x0003,
+ ERIAR_EXGMAC);
+ rtl_writephy(tp, 0x1f, 0x0005);
+ rtl_writephy(tp, 0x05, 0x8b85);
+ rtl_w1w0_phy(tp, 0x06, 0x0000, 0x2000);
+ rtl_writephy(tp, 0x1f, 0x0004);
+ rtl_writephy(tp, 0x1f, 0x0007);
+ rtl_writephy(tp, 0x1e, 0x0020);
+ rtl_w1w0_phy(tp, 0x06, 0x0000, 0x0100);
+ rtl_writephy(tp, 0x1f, 0x0002);
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, 0x0d, 0x0007);
+ rtl_writephy(tp, 0x0e, 0x003c);
+ rtl_writephy(tp, 0x0d, 0x4007);
+ rtl_writephy(tp, 0x0e, 0x0000);
+ rtl_writephy(tp, 0x0d, 0x0000);
+
+ /* Green feature */
+ rtl_writephy(tp, 0x1f, 0x0003);
+ rtl_w1w0_phy(tp, 0x19, 0x0000, 0x0001);
+ rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0400);
+ rtl_writephy(tp, 0x1f, 0x0000);
+}
+
+static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0003 },
+ { 0x08, 0x441d },
+ { 0x01, 0x9100 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_patchphy(tp, 0x11, 1 << 12);
+ rtl_patchphy(tp, 0x19, 1 << 13);
+ rtl_patchphy(tp, 0x10, 1 << 15);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8105e_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0005 },
+ { 0x1a, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0004 },
+ { 0x1c, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x15, 0x7701 },
+ { 0x1f, 0x0000 }
+ };
+
+ /* Disable ALDPS before ram code */
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, 0x18, 0x0310);
+ msleep(100);
+
+ rtl_apply_firmware(tp);
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl_hw_phy_config(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_print_mac_version(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_01:
+ break;
+ case RTL_GIGA_MAC_VER_02:
+ case RTL_GIGA_MAC_VER_03:
+ rtl8169s_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_04:
+ rtl8169sb_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_05:
+ rtl8169scd_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_06:
+ rtl8169sce_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_07:
+ case RTL_GIGA_MAC_VER_08:
+ case RTL_GIGA_MAC_VER_09:
+ rtl8102e_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_11:
+ rtl8168bb_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_12:
+ rtl8168bef_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_17:
+ rtl8168bef_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_18:
+ rtl8168cp_1_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_19:
+ rtl8168c_1_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_20:
+ rtl8168c_2_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_21:
+ rtl8168c_3_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_22:
+ rtl8168c_4_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ rtl8168cp_2_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_25:
+ rtl8168d_1_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_26:
+ rtl8168d_2_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_27:
+ rtl8168d_3_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_28:
+ rtl8168d_4_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_29:
+ case RTL_GIGA_MAC_VER_30:
+ rtl8105e_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_31:
+ /* None. */
+ break;
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ rtl8168e_1_hw_phy_config(tp);
+ break;
+ case RTL_GIGA_MAC_VER_34:
+ rtl8168e_2_hw_phy_config(tp);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void rtl8169_phy_timer(unsigned long __opaque)
+{
+ struct net_device *dev = (struct net_device *)__opaque;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct timer_list *timer = &tp->timer;
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long timeout = RTL8169_PHY_TIMEOUT;
+
+ assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
+
+ spin_lock_irq(&tp->lock);
+
+ if (tp->phy_reset_pending(tp)) {
+ /*
+ * A busy loop could burn quite a few cycles on nowadays CPU.
+ * Let's delay the execution of the timer for a few ticks.
+ */
+ timeout = HZ/10;
+ goto out_mod_timer;
+ }
+
+ if (tp->link_ok(ioaddr))
+ goto out_unlock;
+
+ netif_warn(tp, link, dev, "PHY reset until link up\n");
+
+ tp->phy_reset_enable(tp);
+
+out_mod_timer:
+ mod_timer(timer, jiffies + timeout);
+out_unlock:
+ spin_unlock_irq(&tp->lock);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void rtl8169_netpoll(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ disable_irq(pdev->irq);
+ rtl8169_interrupt(pdev->irq, dev);
+ enable_irq(pdev->irq);
+}
+#endif
+
+static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
+ void __iomem *ioaddr)
+{
+ iounmap(ioaddr);
+ pci_release_regions(pdev);
+ pci_clear_mwi(pdev);
+ pci_disable_device(pdev);
+ free_netdev(dev);
+}
+
+static void rtl8169_phy_reset(struct net_device *dev,
+ struct rtl8169_private *tp)
+{
+ unsigned int i;
+
+ tp->phy_reset_enable(tp);
+ for (i = 0; i < 100; i++) {
+ if (!tp->phy_reset_pending(tp))
+ return;
+ msleep(1);
+ }
+ netif_err(tp, link, dev, "PHY reset failed\n");
+}
+
+static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl_hw_phy_config(dev);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+ }
+
+ pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+ dprintk("Set PHY Reg 0x0bh = 0x00h\n");
+ rtl_writephy(tp, 0x0b, 0x0000); //w 0x0b 15 0 0
+ }
+
+ rtl8169_phy_reset(dev, tp);
+
+ rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL,
+ ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
+ ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
+ (tp->mii.supports_gmii ?
+ ADVERTISED_1000baseT_Half |
+ ADVERTISED_1000baseT_Full : 0));
+
+ if (RTL_R8(PHYstatus) & TBI_Enable)
+ netif_info(tp, link, dev, "TBI auto-negotiating\n");
+}
+
+static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 high;
+ u32 low;
+
+ low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
+ high = addr[4] | (addr[5] << 8);
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W32(MAC4, high);
+ RTL_R32(MAC4);
+
+ RTL_W32(MAC0, low);
+ RTL_R32(MAC0);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
+ const struct exgmac_reg e[] = {
+ { .addr = 0xe0, ERIAR_MASK_1111, .val = low },
+ { .addr = 0xe4, ERIAR_MASK_1111, .val = high },
+ { .addr = 0xf0, ERIAR_MASK_1111, .val = low << 16 },
+ { .addr = 0xf4, ERIAR_MASK_1111, .val = high << 16 |
+ low >> 16 },
+ };
+
+ rtl_write_exgmac_batch(ioaddr, e, ARRAY_SIZE(e));
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ rtl_rar_set(tp, dev->dev_addr);
+
+ return 0;
+}
+
+static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+ return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
+}
+
+static int rtl_xmii_ioctl(struct rtl8169_private *tp,
+ struct mii_ioctl_data *data, int cmd)
+{
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = 32; /* Internal PHY */
+ return 0;
+
+ case SIOCGMIIREG:
+ data->val_out = rtl_readphy(tp, data->reg_num & 0x1f);
+ return 0;
+
+ case SIOCSMIIREG:
+ rtl_writephy(tp, data->reg_num & 0x1f, data->val_in);
+ return 0;
+ }
+ return -EOPNOTSUPP;
+}
+
+static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
+{
+ return -EOPNOTSUPP;
+}
+
+static const struct rtl_cfg_info {
+ void (*hw_start)(struct net_device *);
+ unsigned int region;
+ unsigned int align;
+ u16 intr_event;
+ u16 napi_event;
+ unsigned features;
+ u8 default_ver;
+} rtl_cfg_infos [] = {
+ [RTL_CFG_0] = {
+ .hw_start = rtl_hw_start_8169,
+ .region = 1,
+ .align = 0,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .features = RTL_FEATURE_GMII,
+ .default_ver = RTL_GIGA_MAC_VER_01,
+ },
+ [RTL_CFG_1] = {
+ .hw_start = rtl_hw_start_8168,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ TxErr | TxOK | RxOK | RxErr,
+ .napi_event = TxErr | TxOK | RxOK | RxOverflow,
+ .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
+ .default_ver = RTL_GIGA_MAC_VER_11,
+ },
+ [RTL_CFG_2] = {
+ .hw_start = rtl_hw_start_8101,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .features = RTL_FEATURE_MSI,
+ .default_ver = RTL_GIGA_MAC_VER_13,
+ }
+};
+
+/* Cfg9346_Unlock assumed. */
+static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
+ const struct rtl_cfg_info *cfg)
+{
+ unsigned msi = 0;
+ u8 cfg2;
+
+ cfg2 = RTL_R8(Config2) & ~MSIEnable;
+ if (cfg->features & RTL_FEATURE_MSI) {
+ if (pci_enable_msi(pdev)) {
+ dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
+ } else {
+ cfg2 |= MSIEnable;
+ msi = RTL_FEATURE_MSI;
+ }
+ }
+ RTL_W8(Config2, cfg2);
+ return msi;
+}
+
+static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
+{
+ if (tp->features & RTL_FEATURE_MSI) {
+ pci_disable_msi(pdev);
+ tp->features &= ~RTL_FEATURE_MSI;
+ }
+}
+
+static const struct net_device_ops rtl8169_netdev_ops = {
+ .ndo_open = rtl8169_open,
+ .ndo_stop = rtl8169_close,
+ .ndo_get_stats = rtl8169_get_stats,
+ .ndo_start_xmit = rtl8169_start_xmit,
+ .ndo_tx_timeout = rtl8169_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = rtl8169_change_mtu,
+ .ndo_fix_features = rtl8169_fix_features,
+ .ndo_set_features = rtl8169_set_features,
+ .ndo_set_mac_address = rtl_set_mac_address,
+ .ndo_do_ioctl = rtl8169_ioctl,
+ .ndo_set_multicast_list = rtl_set_rx_mode,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = rtl8169_netpoll,
+#endif
+
+};
+
+static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
+{
+ struct mdio_ops *ops = &tp->mdio_ops;
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_27:
+ ops->write = r8168dp_1_mdio_write;
+ ops->read = r8168dp_1_mdio_read;
+ break;
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ ops->write = r8168dp_2_mdio_write;
+ ops->read = r8168dp_2_mdio_read;
+ break;
+ default:
+ ops->write = r8169_mdio_write;
+ ops->read = r8169_mdio_read;
+ break;
+ }
+}
+
+static void r810x_phy_power_down(struct rtl8169_private *tp)
+{
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
+}
+
+static void r810x_phy_power_up(struct rtl8169_private *tp)
+{
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
+}
+
+static void r810x_pll_power_down(struct rtl8169_private *tp)
+{
+ if (__rtl8169_get_wol(tp) & WAKE_ANY) {
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, MII_BMCR, 0x0000);
+ return;
+ }
+
+ r810x_phy_power_down(tp);
+}
+
+static void r810x_pll_power_up(struct rtl8169_private *tp)
+{
+ r810x_phy_power_up(tp);
+}
+
+static void r8168_phy_power_up(struct rtl8169_private *tp)
+{
+ rtl_writephy(tp, 0x1f, 0x0000);
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_17:
+ case RTL_GIGA_MAC_VER_18:
+ case RTL_GIGA_MAC_VER_19:
+ case RTL_GIGA_MAC_VER_20:
+ case RTL_GIGA_MAC_VER_21:
+ case RTL_GIGA_MAC_VER_22:
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ rtl_writephy(tp, 0x0e, 0x0000);
+ break;
+ default:
+ break;
+ }
+ rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
+}
+
+static void r8168_phy_power_down(struct rtl8169_private *tp)
+{
+ rtl_writephy(tp, 0x1f, 0x0000);
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE | BMCR_PDOWN);
+ break;
+
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_17:
+ case RTL_GIGA_MAC_VER_18:
+ case RTL_GIGA_MAC_VER_19:
+ case RTL_GIGA_MAC_VER_20:
+ case RTL_GIGA_MAC_VER_21:
+ case RTL_GIGA_MAC_VER_22:
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ rtl_writephy(tp, 0x0e, 0x0200);
+ default:
+ rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
+ break;
+ }
+}
+
+static void r8168_pll_power_down(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_27 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_28 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_31) &&
+ r8168dp_check_dash(tp)) {
+ return;
+ }
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_23 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_24) &&
+ (RTL_R16(CPlusCmd) & ASF)) {
+ return;
+ }
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_33)
+ rtl_ephy_write(ioaddr, 0x19, 0xff64);
+
+ if (__rtl8169_get_wol(tp) & WAKE_ANY) {
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, MII_BMCR, 0x0000);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_33)
+ RTL_W32(RxConfig, RTL_R32(RxConfig) | AcceptBroadcast |
+ AcceptMulticast | AcceptMyPhys);
+ return;
+ }
+
+ r8168_phy_power_down(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ RTL_W8(PMCH, RTL_R8(PMCH) & ~0x80);
+ break;
+ }
+}
+
+static void r8168_pll_power_up(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_27 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_28 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_31) &&
+ r8168dp_check_dash(tp)) {
+ return;
+ }
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ RTL_W8(PMCH, RTL_R8(PMCH) | 0x80);
+ break;
+ }
+
+ r8168_phy_power_up(tp);
+}
+
+static void rtl_pll_power_op(struct rtl8169_private *tp,
+ void (*op)(struct rtl8169_private *))
+{
+ if (op)
+ op(tp);
+}
+
+static void rtl_pll_power_down(struct rtl8169_private *tp)
+{
+ rtl_pll_power_op(tp, tp->pll_power_ops.down);
+}
+
+static void rtl_pll_power_up(struct rtl8169_private *tp)
+{
+ rtl_pll_power_op(tp, tp->pll_power_ops.up);
+}
+
+static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
+{
+ struct pll_power_ops *ops = &tp->pll_power_ops;
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_07:
+ case RTL_GIGA_MAC_VER_08:
+ case RTL_GIGA_MAC_VER_09:
+ case RTL_GIGA_MAC_VER_10:
+ case RTL_GIGA_MAC_VER_16:
+ case RTL_GIGA_MAC_VER_29:
+ case RTL_GIGA_MAC_VER_30:
+ ops->down = r810x_pll_power_down;
+ ops->up = r810x_pll_power_up;
+ break;
+
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_17:
+ case RTL_GIGA_MAC_VER_18:
+ case RTL_GIGA_MAC_VER_19:
+ case RTL_GIGA_MAC_VER_20:
+ case RTL_GIGA_MAC_VER_21:
+ case RTL_GIGA_MAC_VER_22:
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ case RTL_GIGA_MAC_VER_34:
+ ops->down = r8168_pll_power_down;
+ ops->up = r8168_pll_power_up;
+ break;
+
+ default:
+ ops->down = NULL;
+ ops->up = NULL;
+ break;
+ }
+}
+
+static void rtl_init_rxcfg(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_01:
+ case RTL_GIGA_MAC_VER_02:
+ case RTL_GIGA_MAC_VER_03:
+ case RTL_GIGA_MAC_VER_04:
+ case RTL_GIGA_MAC_VER_05:
+ case RTL_GIGA_MAC_VER_06:
+ case RTL_GIGA_MAC_VER_10:
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_13:
+ case RTL_GIGA_MAC_VER_14:
+ case RTL_GIGA_MAC_VER_15:
+ case RTL_GIGA_MAC_VER_16:
+ case RTL_GIGA_MAC_VER_17:
+ RTL_W32(RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
+ break;
+ case RTL_GIGA_MAC_VER_18:
+ case RTL_GIGA_MAC_VER_19:
+ case RTL_GIGA_MAC_VER_20:
+ case RTL_GIGA_MAC_VER_21:
+ case RTL_GIGA_MAC_VER_22:
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ RTL_W32(RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
+ break;
+ default:
+ RTL_W32(RxConfig, RX128_INT_EN | RX_DMA_BURST);
+ break;
+ }
+}
+
+static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
+{
+ tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
+}
+
+static void rtl_hw_reset(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+
+ /* Soft reset the chip. */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 0; i < 100; i++) {
+ if ((RTL_R8(ChipCmd) & CmdReset) == 0)
+ break;
+ udelay(100);
+ }
+
+ rtl8169_init_ring_indexes(tp);
+}
+
+static int __devinit
+rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
+ const unsigned int region = cfg->region;
+ struct rtl8169_private *tp;
+ struct mii_if_info *mii;
+ struct net_device *dev;
+ void __iomem *ioaddr;
+ int chipset, i;
+ int rc;
+
+ if (netif_msg_drv(&debug)) {
+ printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
+ MODULENAME, RTL8169_VERSION);
+ }
+
+ dev = alloc_etherdev(sizeof (*tp));
+ if (!dev) {
+ if (netif_msg_drv(&debug))
+ dev_err(&pdev->dev, "unable to alloc new ethernet\n");
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ dev->netdev_ops = &rtl8169_netdev_ops;
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+ tp->pci_dev = pdev;
+ tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
+
+ mii = &tp->mii;
+ mii->dev = dev;
+ mii->mdio_read = rtl_mdio_read;
+ mii->mdio_write = rtl_mdio_write;
+ mii->phy_id_mask = 0x1f;
+ mii->reg_num_mask = 0x1f;
+ mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
+
+ /* disable ASPM completely as that cause random device stop working
+ * problems as well as full system hangs for some PCIe devices users */
+ pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+ PCIE_LINK_STATE_CLKPM);
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pci_enable_device(pdev);
+ if (rc < 0) {
+ netif_err(tp, probe, dev, "enable failure\n");
+ goto err_out_free_dev_1;
+ }
+
+ if (pci_set_mwi(pdev) < 0)
+ netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
+
+ /* make sure PCI base addr 1 is MMIO */
+ if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
+ netif_err(tp, probe, dev,
+ "region #%d not an MMIO resource, aborting\n",
+ region);
+ rc = -ENODEV;
+ goto err_out_mwi_2;
+ }
+
+ /* check for weird/broken PCI region reporting */
+ if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
+ netif_err(tp, probe, dev,
+ "Invalid PCI region size(s), aborting\n");
+ rc = -ENODEV;
+ goto err_out_mwi_2;
+ }
+
+ rc = pci_request_regions(pdev, MODULENAME);
+ if (rc < 0) {
+ netif_err(tp, probe, dev, "could not request regions\n");
+ goto err_out_mwi_2;
+ }
+
+ tp->cp_cmd = RxChkSum;
+
+ if ((sizeof(dma_addr_t) > 4) &&
+ !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
+ tp->cp_cmd |= PCIDAC;
+ dev->features |= NETIF_F_HIGHDMA;
+ } else {
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc < 0) {
+ netif_err(tp, probe, dev, "DMA configuration failed\n");
+ goto err_out_free_res_3;
+ }
+ }
+
+ /* ioremap MMIO region */
+ ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
+ if (!ioaddr) {
+ netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
+ rc = -EIO;
+ goto err_out_free_res_3;
+ }
+ tp->mmio_addr = ioaddr;
+
+ if (!pci_is_pcie(pdev))
+ netif_info(tp, probe, dev, "not PCI Express\n");
+
+ /* Identify chip attached to board */
+ rtl8169_get_mac_version(tp, dev, cfg->default_ver);
+
+ rtl_init_rxcfg(tp);
+
+ RTL_W16(IntrMask, 0x0000);
+
+ rtl_hw_reset(tp);
+
+ RTL_W16(IntrStatus, 0xffff);
+
+ pci_set_master(pdev);
+
+ /*
+ * Pretend we are using VLANs; This bypasses a nasty bug where
+ * Interrupts stop flowing on high load on 8110SCd controllers.
+ */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05)
+ tp->cp_cmd |= RxVlan;
+
+ rtl_init_mdio_ops(tp);
+ rtl_init_pll_power_ops(tp);
+
+ rtl8169_print_mac_version(tp);
+
+ chipset = tp->mac_version;
+ tp->txd_version = rtl_chip_infos[chipset].txd_version;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
+ RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
+ if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
+ tp->features |= RTL_FEATURE_WOL;
+ if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
+ tp->features |= RTL_FEATURE_WOL;
+ tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
+ (RTL_R8(PHYstatus) & TBI_Enable)) {
+ tp->set_speed = rtl8169_set_speed_tbi;
+ tp->get_settings = rtl8169_gset_tbi;
+ tp->phy_reset_enable = rtl8169_tbi_reset_enable;
+ tp->phy_reset_pending = rtl8169_tbi_reset_pending;
+ tp->link_ok = rtl8169_tbi_link_ok;
+ tp->do_ioctl = rtl_tbi_ioctl;
+ } else {
+ tp->set_speed = rtl8169_set_speed_xmii;
+ tp->get_settings = rtl8169_gset_xmii;
+ tp->phy_reset_enable = rtl8169_xmii_reset_enable;
+ tp->phy_reset_pending = rtl8169_xmii_reset_pending;
+ tp->link_ok = rtl8169_xmii_link_ok;
+ tp->do_ioctl = rtl_xmii_ioctl;
+ }
+
+ spin_lock_init(&tp->lock);
+
+ /* Get MAC address */
+ for (i = 0; i < MAC_ADDR_LEN; i++)
+ dev->dev_addr[i] = RTL_R8(MAC0 + i);
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+ SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
+ dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
+ dev->irq = pdev->irq;
+ dev->base_addr = (unsigned long) ioaddr;
+
+ netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
+
+ /* don't enable SG, IP_CSUM and TSO by default - it might not work
+ * properly for all devices */
+ dev->features |= NETIF_F_RXCSUM |
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+
+ dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_RXCSUM | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HIGHDMA;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05)
+ /* 8110SCd requires hardware Rx VLAN - disallow toggling */
+ dev->hw_features &= ~NETIF_F_HW_VLAN_RX;
+
+ tp->intr_mask = 0xffff;
+ tp->hw_start = cfg->hw_start;
+ tp->intr_event = cfg->intr_event;
+ tp->napi_event = cfg->napi_event;
+
+ init_timer(&tp->timer);
+ tp->timer.data = (unsigned long) dev;
+ tp->timer.function = rtl8169_phy_timer;
+
+ tp->rtl_fw = RTL_FIRMWARE_UNKNOWN;
+
+ rc = register_netdev(dev);
+ if (rc < 0)
+ goto err_out_msi_4;
+
+ pci_set_drvdata(pdev, dev);
+
+ netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
+ rtl_chip_infos[chipset].name, dev->base_addr, dev->dev_addr,
+ (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_28 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_31) {
+ rtl8168_driver_start(tp);
+ }
+
+ device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_put_noidle(&pdev->dev);
+
+ netif_carrier_off(dev);
+
+out:
+ return rc;
+
+err_out_msi_4:
+ rtl_disable_msi(pdev, tp);
+ iounmap(ioaddr);
+err_out_free_res_3:
+ pci_release_regions(pdev);
+err_out_mwi_2:
+ pci_clear_mwi(pdev);
+ pci_disable_device(pdev);
+err_out_free_dev_1:
+ free_netdev(dev);
+ goto out;
+}
+
+static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_28 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_31) {
+ rtl8168_driver_stop(tp);
+ }
+
+ cancel_delayed_work_sync(&tp->task);
+
+ unregister_netdev(dev);
+
+ rtl_release_firmware(tp);
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_get_noresume(&pdev->dev);
+
+ /* restore original MAC address */
+ rtl_rar_set(tp, dev->perm_addr);
+
+ rtl_disable_msi(pdev, tp);
+ rtl8169_release_board(pdev, dev, tp->mmio_addr);
+ pci_set_drvdata(pdev, NULL);
+}
+
+static void rtl_request_uncached_firmware(struct rtl8169_private *tp)
+{
+ struct rtl_fw *rtl_fw;
+ const char *name;
+ int rc = -ENOMEM;
+
+ name = rtl_lookup_firmware_name(tp);
+ if (!name)
+ goto out_no_firmware;
+
+ rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
+ if (!rtl_fw)
+ goto err_warn;
+
+ rc = request_firmware(&rtl_fw->fw, name, &tp->pci_dev->dev);
+ if (rc < 0)
+ goto err_free;
+
+ rc = rtl_check_firmware(tp, rtl_fw);
+ if (rc < 0)
+ goto err_release_firmware;
+
+ tp->rtl_fw = rtl_fw;
+out:
+ return;
+
+err_release_firmware:
+ release_firmware(rtl_fw->fw);
+err_free:
+ kfree(rtl_fw);
+err_warn:
+ netif_warn(tp, ifup, tp->dev, "unable to load firmware patch %s (%d)\n",
+ name, rc);
+out_no_firmware:
+ tp->rtl_fw = NULL;
+ goto out;
+}
+
+static void rtl_request_firmware(struct rtl8169_private *tp)
+{
+ if (IS_ERR(tp->rtl_fw))
+ rtl_request_uncached_firmware(tp);
+}
+
+static int rtl8169_open(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+ int retval = -ENOMEM;
+
+ pm_runtime_get_sync(&pdev->dev);
+
+ /*
+ * Rx and Tx desscriptors needs 256 bytes alignment.
+ * dma_alloc_coherent provides more.
+ */
+ tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
+ &tp->TxPhyAddr, GFP_KERNEL);
+ if (!tp->TxDescArray)
+ goto err_pm_runtime_put;
+
+ tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
+ &tp->RxPhyAddr, GFP_KERNEL);
+ if (!tp->RxDescArray)
+ goto err_free_tx_0;
+
+ retval = rtl8169_init_ring(dev);
+ if (retval < 0)
+ goto err_free_rx_1;
+
+ INIT_DELAYED_WORK(&tp->task, NULL);
+
+ smp_mb();
+
+ rtl_request_firmware(tp);
+
+ retval = request_irq(dev->irq, rtl8169_interrupt,
+ (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
+ dev->name, dev);
+ if (retval < 0)
+ goto err_release_fw_2;
+
+ napi_enable(&tp->napi);
+
+ rtl8169_init_phy(dev, tp);
+
+ rtl8169_set_features(dev, dev->features);
+
+ rtl_pll_power_up(tp);
+
+ rtl_hw_start(dev);
+
+ tp->saved_wolopts = 0;
+ pm_runtime_put_noidle(&pdev->dev);
+
+ rtl8169_check_link_status(dev, tp, ioaddr);
+out:
+ return retval;
+
+err_release_fw_2:
+ rtl_release_firmware(tp);
+ rtl8169_rx_clear(tp);
+err_free_rx_1:
+ dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ tp->RxDescArray = NULL;
+err_free_tx_0:
+ dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+err_pm_runtime_put:
+ pm_runtime_put_noidle(&pdev->dev);
+ goto out;
+}
+
+static void rtl_rx_close(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ RTL_W32(RxConfig, RTL_R32(RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
+}
+
+static void rtl8169_hw_reset(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ /* Disable interrupts */
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ rtl_rx_close(tp);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_28 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_31) {
+ while (RTL_R8(TxPoll) & NPQ)
+ udelay(20);
+ } else if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
+ while (!(RTL_R32(TxConfig) & TXCFG_EMPTY))
+ udelay(100);
+ } else {
+ RTL_W8(ChipCmd, RTL_R8(ChipCmd) | StopReq);
+ udelay(100);
+ }
+
+ rtl_hw_reset(tp);
+}
+
+static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ /* Set DMA burst size and Interframe Gap Time */
+ RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
+ (InterFrameGap << TxInterFrameGapShift));
+}
+
+static void rtl_hw_start(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ tp->hw_start(dev);
+
+ netif_start_queue(dev);
+}
+
+static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ /*
+ * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
+ * register to be written before TxDescAddrLow to work.
+ * Switching from MMIO to I/O access fixes the issue as well.
+ */
+ RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
+ RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
+ RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
+ RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
+}
+
+static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
+{
+ u16 cmd;
+
+ cmd = RTL_R16(CPlusCmd);
+ RTL_W16(CPlusCmd, cmd);
+ return cmd;
+}
+
+static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
+{
+ /* Low hurts. Let's disable the filtering. */
+ RTL_W16(RxMaxSize, rx_buf_sz + 1);
+}
+
+static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
+{
+ static const struct rtl_cfg2_info {
+ u32 mac_version;
+ u32 clk;
+ u32 val;
+ } cfg2_info [] = {
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
+ };
+ const struct rtl_cfg2_info *p = cfg2_info;
+ unsigned int i;
+ u32 clk;
+
+ clk = RTL_R8(Config2) & PCI_Clock_66MHz;
+ for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
+ if ((p->mac_version == mac_version) && (p->clk == clk)) {
+ RTL_W32(0x7c, p->val);
+ break;
+ }
+ }
+}
+
+static void rtl_hw_start_8169(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
+ pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ if (tp->mac_version == RTL_GIGA_MAC_VER_01 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_02 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_03 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_04)
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ rtl_init_rxcfg(tp);
+
+ RTL_W8(EarlyTxThres, NoEarlyTx);
+
+ rtl_set_rx_max_size(ioaddr, rx_buf_sz);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_01 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_02 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_03 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_04)
+ rtl_set_rx_tx_config_registers(tp);
+
+ tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_03) {
+ dprintk("Set MAC Reg C+CR Offset 0xE0. "
+ "Bit-3 and bit-14 MUST be 1\n");
+ tp->cp_cmd |= (1 << 14);
+ }
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ rtl8169_set_magic_reg(ioaddr, tp->mac_version);
+
+ /*
+ * Undocumented corner. Supposedly:
+ * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
+ */
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ if (tp->mac_version != RTL_GIGA_MAC_VER_01 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_02 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_03 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_04) {
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ /* no early-rx interrupts */
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ /* Enable all known interrupts by setting the interrupt mask. */
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
+{
+ int cap = pci_pcie_cap(pdev);
+
+ if (cap) {
+ u16 ctl;
+
+ pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
+ ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
+ pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
+ }
+}
+
+static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
+{
+ u32 csi;
+
+ csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
+ rtl_csi_write(ioaddr, 0x070c, csi | bits);
+}
+
+static void rtl_csi_access_enable_1(void __iomem *ioaddr)
+{
+ rtl_csi_access_enable(ioaddr, 0x17000000);
+}
+
+static void rtl_csi_access_enable_2(void __iomem *ioaddr)
+{
+ rtl_csi_access_enable(ioaddr, 0x27000000);
+}
+
+struct ephy_info {
+ unsigned int offset;
+ u16 mask;
+ u16 bits;
+};
+
+static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
+{
+ u16 w;
+
+ while (len-- > 0) {
+ w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
+ rtl_ephy_write(ioaddr, e->offset, w);
+ e++;
+ }
+}
+
+static void rtl_disable_clock_request(struct pci_dev *pdev)
+{
+ int cap = pci_pcie_cap(pdev);
+
+ if (cap) {
+ u16 ctl;
+
+ pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
+ ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
+ pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
+ }
+}
+
+static void rtl_enable_clock_request(struct pci_dev *pdev)
+{
+ int cap = pci_pcie_cap(pdev);
+
+ if (cap) {
+ u16 ctl;
+
+ pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
+ ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
+ pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
+ }
+}
+
+#define R8168_CPCMD_QUIRK_MASK (\
+ EnableBist | \
+ Mac_dbgo_oe | \
+ Force_half_dup | \
+ Force_rxflow_en | \
+ Force_txflow_en | \
+ Cxpl_dbg_sel | \
+ ASF | \
+ PktCntrDisable | \
+ Mac_dbgo_sel)
+
+static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
+
+ rtl_tx_performance_tweak(pdev,
+ (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
+}
+
+static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_hw_start_8168bb(ioaddr, pdev);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
+}
+
+static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
+
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ rtl_disable_clock_request(pdev);
+
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
+}
+
+static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168cp[] = {
+ { 0x01, 0, 0x0001 },
+ { 0x02, 0x0800, 0x1000 },
+ { 0x03, 0, 0x0042 },
+ { 0x06, 0x0080, 0x0000 },
+ { 0x07, 0, 0x2000 }
+ };
+
+ rtl_csi_access_enable_2(ioaddr);
+
+ rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
+
+ __rtl_hw_start_8168cp(ioaddr, pdev);
+}
+
+static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_2(ioaddr);
+
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
+}
+
+static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_2(ioaddr);
+
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+ /* Magic. */
+ RTL_W8(DBG_REG, 0x20);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
+}
+
+static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168c_1[] = {
+ { 0x02, 0x0800, 0x1000 },
+ { 0x03, 0, 0x0002 },
+ { 0x06, 0x0080, 0x0000 }
+ };
+
+ rtl_csi_access_enable_2(ioaddr);
+
+ RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
+
+ rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
+
+ __rtl_hw_start_8168cp(ioaddr, pdev);
+}
+
+static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168c_2[] = {
+ { 0x01, 0, 0x0001 },
+ { 0x03, 0x0400, 0x0220 }
+ };
+
+ rtl_csi_access_enable_2(ioaddr);
+
+ rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
+
+ __rtl_hw_start_8168cp(ioaddr, pdev);
+}
+
+static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_hw_start_8168c_2(ioaddr, pdev);
+}
+
+static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_2(ioaddr);
+
+ __rtl_hw_start_8168cp(ioaddr, pdev);
+}
+
+static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_2(ioaddr);
+
+ rtl_disable_clock_request(pdev);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
+}
+
+static void rtl_hw_start_8168dp(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_1(ioaddr);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_disable_clock_request(pdev);
+}
+
+static void rtl_hw_start_8168d_4(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168d_4[] = {
+ { 0x0b, ~0, 0x48 },
+ { 0x19, 0x20, 0x50 },
+ { 0x0c, ~0, 0x20 }
+ };
+ int i;
+
+ rtl_csi_access_enable_1(ioaddr);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ for (i = 0; i < ARRAY_SIZE(e_info_8168d_4); i++) {
+ const struct ephy_info *e = e_info_8168d_4 + i;
+ u16 w;
+
+ w = rtl_ephy_read(ioaddr, e->offset);
+ rtl_ephy_write(ioaddr, 0x03, (w & e->mask) | e->bits);
+ }
+
+ rtl_enable_clock_request(pdev);
+}
+
+static void rtl_hw_start_8168e_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168e_1[] = {
+ { 0x00, 0x0200, 0x0100 },
+ { 0x00, 0x0000, 0x0004 },
+ { 0x06, 0x0002, 0x0001 },
+ { 0x06, 0x0000, 0x0030 },
+ { 0x07, 0x0000, 0x2000 },
+ { 0x00, 0x0000, 0x0020 },
+ { 0x03, 0x5800, 0x2000 },
+ { 0x03, 0x0000, 0x0001 },
+ { 0x01, 0x0800, 0x1000 },
+ { 0x07, 0x0000, 0x4000 },
+ { 0x1e, 0x0000, 0x2000 },
+ { 0x19, 0xffff, 0xfe6c },
+ { 0x0a, 0x0000, 0x0040 }
+ };
+
+ rtl_csi_access_enable_2(ioaddr);
+
+ rtl_ephy_init(ioaddr, e_info_8168e_1, ARRAY_SIZE(e_info_8168e_1));
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_disable_clock_request(pdev);
+
+ /* Reset tx FIFO pointer */
+ RTL_W32(MISC, RTL_R32(MISC) | TXPLA_RST);
+ RTL_W32(MISC, RTL_R32(MISC) & ~TXPLA_RST);
+
+ RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en);
+}
+
+static void rtl_hw_start_8168e_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168e_2[] = {
+ { 0x09, 0x0000, 0x0080 },
+ { 0x19, 0x0000, 0x0224 }
+ };
+
+ rtl_csi_access_enable_1(ioaddr);
+
+ rtl_ephy_init(ioaddr, e_info_8168e_2, ARRAY_SIZE(e_info_8168e_2));
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ rtl_eri_write(ioaddr, 0xc0, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0xb8, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0xc8, ERIAR_MASK_1111, 0x00100002, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0xe8, ERIAR_MASK_1111, 0x00100006, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0xcc, ERIAR_MASK_1111, 0x00000050, ERIAR_EXGMAC);
+ rtl_eri_write(ioaddr, 0xd0, ERIAR_MASK_1111, 0x07ff0060, ERIAR_EXGMAC);
+ rtl_w1w0_eri(ioaddr, 0x1b0, ERIAR_MASK_0001, 0x10, 0x00, ERIAR_EXGMAC);
+ rtl_w1w0_eri(ioaddr, 0x0d4, ERIAR_MASK_0011, 0x0c00, 0xff00,
+ ERIAR_EXGMAC);
+
+ RTL_W8(MaxTxPacketSize, 0x27);
+
+ rtl_disable_clock_request(pdev);
+
+ RTL_W32(TxConfig, RTL_R32(TxConfig) | TXCFG_AUTO_FIFO);
+ RTL_W8(MCU, RTL_R8(MCU) & ~NOW_IS_OOB);
+
+ /* Adjust EEE LED frequency */
+ RTL_W8(EEE_LED, RTL_R8(EEE_LED) & ~0x07);
+
+ RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN);
+ RTL_W32(MISC, RTL_R32(MISC) | PWM_EN);
+ RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en);
+}
+
+static void rtl_hw_start_8168(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_set_rx_max_size(ioaddr, rx_buf_sz);
+
+ tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ RTL_W16(IntrMitigate, 0x5151);
+
+ /* Work around for RxFIFO overflow. */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_22) {
+ tp->intr_event |= RxFIFOOver | PCSTimeout;
+ tp->intr_event &= ~RxOverflow;
+ }
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
+ (InterFrameGap << TxInterFrameGapShift));
+
+ RTL_R8(IntrMask);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_11:
+ rtl_hw_start_8168bb(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_17:
+ rtl_hw_start_8168bef(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_18:
+ rtl_hw_start_8168cp_1(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_19:
+ rtl_hw_start_8168c_1(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_20:
+ rtl_hw_start_8168c_2(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_21:
+ rtl_hw_start_8168c_3(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_22:
+ rtl_hw_start_8168c_4(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_23:
+ rtl_hw_start_8168cp_2(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_24:
+ rtl_hw_start_8168cp_3(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_25:
+ case RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_27:
+ rtl_hw_start_8168d(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_28:
+ rtl_hw_start_8168d_4(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_31:
+ rtl_hw_start_8168dp(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_32:
+ case RTL_GIGA_MAC_VER_33:
+ rtl_hw_start_8168e_1(ioaddr, pdev);
+ break;
+ case RTL_GIGA_MAC_VER_34:
+ rtl_hw_start_8168e_2(ioaddr, pdev);
+ break;
+
+ default:
+ printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
+ dev->name, tp->mac_version);
+ break;
+ }
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+#define R810X_CPCMD_QUIRK_MASK (\
+ EnableBist | \
+ Mac_dbgo_oe | \
+ Force_half_dup | \
+ Force_rxflow_en | \
+ Force_txflow_en | \
+ Cxpl_dbg_sel | \
+ ASF | \
+ PktCntrDisable | \
+ Mac_dbgo_sel)
+
+static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8102e_1[] = {
+ { 0x01, 0, 0x6e65 },
+ { 0x02, 0, 0x091f },
+ { 0x03, 0, 0xc2f9 },
+ { 0x06, 0, 0xafb5 },
+ { 0x07, 0, 0x0e00 },
+ { 0x19, 0, 0xec80 },
+ { 0x01, 0, 0x2e65 },
+ { 0x01, 0, 0x6e65 }
+ };
+ u8 cfg1;
+
+ rtl_csi_access_enable_2(ioaddr);
+
+ RTL_W8(DBG_REG, FIX_NAK_1);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(Config1,
+ LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+
+ cfg1 = RTL_R8(Config1);
+ if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
+ RTL_W8(Config1, cfg1 & ~LEDS0);
+
+ rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
+}
+
+static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_csi_access_enable_2(ioaddr);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
+ RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
+}
+
+static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_hw_start_8102e_2(ioaddr, pdev);
+
+ rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
+}
+
+static void rtl_hw_start_8105e_1(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8105e_1[] = {
+ { 0x07, 0, 0x4000 },
+ { 0x19, 0, 0x0200 },
+ { 0x19, 0, 0x0020 },
+ { 0x1e, 0, 0x2000 },
+ { 0x03, 0, 0x0001 },
+ { 0x19, 0, 0x0100 },
+ { 0x19, 0, 0x0004 },
+ { 0x0a, 0, 0x0020 }
+ };
+
+ /* Force LAN exit from ASPM if Rx/Tx are not idle */
+ RTL_W32(FuncEvent, RTL_R32(FuncEvent) | 0x002800);
+
+ /* Disable Early Tally Counter */
+ RTL_W32(FuncEvent, RTL_R32(FuncEvent) & ~0x010000);
+
+ RTL_W8(MCU, RTL_R8(MCU) | EN_NDP | EN_OOB_RESET);
+ RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN);
+
+ rtl_ephy_init(ioaddr, e_info_8105e_1, ARRAY_SIZE(e_info_8105e_1));
+}
+
+static void rtl_hw_start_8105e_2(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ rtl_hw_start_8105e_1(ioaddr, pdev);
+ rtl_ephy_write(ioaddr, 0x1e, rtl_ephy_read(ioaddr, 0x1e) | 0x8000);
+}
+
+static void rtl_hw_start_8101(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_16) {
+ int cap = pci_pcie_cap(pdev);
+
+ if (cap) {
+ pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
+ PCI_EXP_DEVCTL_NOSNOOP_EN);
+ }
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_07:
+ rtl_hw_start_8102e_1(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_08:
+ rtl_hw_start_8102e_3(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_09:
+ rtl_hw_start_8102e_2(ioaddr, pdev);
+ break;
+
+ case RTL_GIGA_MAC_VER_29:
+ rtl_hw_start_8105e_1(ioaddr, pdev);
+ break;
+ case RTL_GIGA_MAC_VER_30:
+ rtl_hw_start_8105e_2(ioaddr, pdev);
+ break;
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ rtl_set_rx_max_size(ioaddr, rx_buf_sz);
+
+ tp->cp_cmd &= ~R810X_CPCMD_QUIRK_MASK;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+
+ RTL_R8(IntrMask);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
+
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
+{
+ if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+ netdev_update_features(dev);
+
+ return 0;
+}
+
+static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
+{
+ desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
+ desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
+}
+
+static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
+ void **data_buff, struct RxDesc *desc)
+{
+ dma_unmap_single(&tp->pci_dev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
+ DMA_FROM_DEVICE);
+
+ kfree(*data_buff);
+ *data_buff = NULL;
+ rtl8169_make_unusable_by_asic(desc);
+}
+
+static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
+{
+ u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
+
+ desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
+}
+
+static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
+ u32 rx_buf_sz)
+{
+ desc->addr = cpu_to_le64(mapping);
+ wmb();
+ rtl8169_mark_to_asic(desc, rx_buf_sz);
+}
+
+static inline void *rtl8169_align(void *data)
+{
+ return (void *)ALIGN((long)data, 16);
+}
+
+static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
+ struct RxDesc *desc)
+{
+ void *data;
+ dma_addr_t mapping;
+ struct device *d = &tp->pci_dev->dev;
+ struct net_device *dev = tp->dev;
+ int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
+
+ data = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
+ if (!data)
+ return NULL;
+
+ if (rtl8169_align(data) != data) {
+ kfree(data);
+ data = kmalloc_node(rx_buf_sz + 15, GFP_KERNEL, node);
+ if (!data)
+ return NULL;
+ }
+
+ mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz,
+ DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping))) {
+ if (net_ratelimit())
+ netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n");
+ goto err_out;
+ }
+
+ rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
+ return data;
+
+err_out:
+ kfree(data);
+ return NULL;
+}
+
+static void rtl8169_rx_clear(struct rtl8169_private *tp)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_RX_DESC; i++) {
+ if (tp->Rx_databuff[i]) {
+ rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
+ tp->RxDescArray + i);
+ }
+ }
+}
+
+static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
+{
+ desc->opts1 |= cpu_to_le32(RingEnd);
+}
+
+static int rtl8169_rx_fill(struct rtl8169_private *tp)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_RX_DESC; i++) {
+ void *data;
+
+ if (tp->Rx_databuff[i])
+ continue;
+
+ data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
+ if (!data) {
+ rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
+ goto err_out;
+ }
+ tp->Rx_databuff[i] = data;
+ }
+
+ rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
+ return 0;
+
+err_out:
+ rtl8169_rx_clear(tp);
+ return -ENOMEM;
+}
+
+static int rtl8169_init_ring(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_init_ring_indexes(tp);
+
+ memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
+ memset(tp->Rx_databuff, 0x0, NUM_RX_DESC * sizeof(void *));
+
+ return rtl8169_rx_fill(tp);
+}
+
+static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
+ struct TxDesc *desc)
+{
+ unsigned int len = tx_skb->len;
+
+ dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
+
+ desc->opts1 = 0x00;
+ desc->opts2 = 0x00;
+ desc->addr = 0x00;
+ tx_skb->len = 0;
+}
+
+static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
+ unsigned int n)
+{
+ unsigned int i;
+
+ for (i = 0; i < n; i++) {
+ unsigned int entry = (start + i) % NUM_TX_DESC;
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ unsigned int len = tx_skb->len;
+
+ if (len) {
+ struct sk_buff *skb = tx_skb->skb;
+
+ rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
+ tp->TxDescArray + entry);
+ if (skb) {
+ tp->dev->stats.tx_dropped++;
+ dev_kfree_skb(skb);
+ tx_skb->skb = NULL;
+ }
+ }
+ }
+}
+
+static void rtl8169_tx_clear(struct rtl8169_private *tp)
+{
+ rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
+ tp->cur_tx = tp->dirty_tx = 0;
+}
+
+static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ PREPARE_DELAYED_WORK(&tp->task, task);
+ schedule_delayed_work(&tp->task, 4);
+}
+
+static void rtl8169_wait_for_quiescence(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ synchronize_irq(dev->irq);
+
+ /* Wait for any pending NAPI task to complete */
+ napi_disable(&tp->napi);
+
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ tp->intr_mask = 0xffff;
+ RTL_W16(IntrMask, tp->intr_event);
+ napi_enable(&tp->napi);
+}
+
+static void rtl8169_reinit_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+ int ret;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+ rtl8169_close(dev);
+
+ ret = rtl8169_open(dev);
+ if (unlikely(ret < 0)) {
+ if (net_ratelimit())
+ netif_err(tp, drv, dev,
+ "reinit failure (status = %d). Rescheduling\n",
+ ret);
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+ }
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_reset_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+ int i;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+
+ for (i = 0; i < NUM_RX_DESC; i++)
+ rtl8169_mark_to_asic(tp->RxDescArray + i, rx_buf_sz);
+
+ rtl8169_tx_clear(tp);
+
+ rtl8169_hw_reset(tp);
+ rtl_hw_start(dev);
+ netif_wake_queue(dev);
+ rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_tx_timeout(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_hw_reset(tp);
+
+ /* Let's wait a bit while any (async) irq lands on */
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+}
+
+static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
+ u32 *opts)
+{
+ struct skb_shared_info *info = skb_shinfo(skb);
+ unsigned int cur_frag, entry;
+ struct TxDesc * uninitialized_var(txd);
+ struct device *d = &tp->pci_dev->dev;
+
+ entry = tp->cur_tx;
+ for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
+ skb_frag_t *frag = info->frags + cur_frag;
+ dma_addr_t mapping;
+ u32 status, len;
+ void *addr;
+
+ entry = (entry + 1) % NUM_TX_DESC;
+
+ txd = tp->TxDescArray + entry;
+ len = frag->size;
+ addr = ((void *) page_address(frag->page)) + frag->page_offset;
+ mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping))) {
+ if (net_ratelimit())
+ netif_err(tp, drv, tp->dev,
+ "Failed to map TX fragments DMA!\n");
+ goto err_out;
+ }
+
+ /* Anti gcc 2.95.3 bugware (sic) */
+ status = opts[0] | len |
+ (RingEnd * !((entry + 1) % NUM_TX_DESC));
+
+ txd->opts1 = cpu_to_le32(status);
+ txd->opts2 = cpu_to_le32(opts[1]);
+ txd->addr = cpu_to_le64(mapping);
+
+ tp->tx_skb[entry].len = len;
+ }
+
+ if (cur_frag) {
+ tp->tx_skb[entry].skb = skb;
+ txd->opts1 |= cpu_to_le32(LastFrag);
+ }
+
+ return cur_frag;
+
+err_out:
+ rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
+ return -EIO;
+}
+
+static inline void rtl8169_tso_csum(struct rtl8169_private *tp,
+ struct sk_buff *skb, u32 *opts)
+{
+ const struct rtl_tx_desc_info *info = tx_desc_info + tp->txd_version;
+ u32 mss = skb_shinfo(skb)->gso_size;
+ int offset = info->opts_offset;
+
+ if (mss) {
+ opts[0] |= TD_LSO;
+ opts[offset] |= min(mss, TD_MSS_MAX) << info->mss_shift;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+
+ if (ip->protocol == IPPROTO_TCP)
+ opts[offset] |= info->checksum.tcp;
+ else if (ip->protocol == IPPROTO_UDP)
+ opts[offset] |= info->checksum.udp;
+ else
+ WARN_ON_ONCE(1);
+ }
+}
+
+static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned int entry = tp->cur_tx % NUM_TX_DESC;
+ struct TxDesc *txd = tp->TxDescArray + entry;
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct device *d = &tp->pci_dev->dev;
+ dma_addr_t mapping;
+ u32 status, len;
+ u32 opts[2];
+ int frags;
+
+ if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
+ netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
+ goto err_stop_0;
+ }
+
+ if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
+ goto err_stop_0;
+
+ len = skb_headlen(skb);
+ mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping))) {
+ if (net_ratelimit())
+ netif_err(tp, drv, dev, "Failed to map TX DMA!\n");
+ goto err_dma_0;
+ }
+
+ tp->tx_skb[entry].len = len;
+ txd->addr = cpu_to_le64(mapping);
+
+ opts[1] = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
+ opts[0] = DescOwn;
+
+ rtl8169_tso_csum(tp, skb, opts);
+
+ frags = rtl8169_xmit_frags(tp, skb, opts);
+ if (frags < 0)
+ goto err_dma_1;
+ else if (frags)
+ opts[0] |= FirstFrag;
+ else {
+ opts[0] |= FirstFrag | LastFrag;
+ tp->tx_skb[entry].skb = skb;
+ }
+
+ txd->opts2 = cpu_to_le32(opts[1]);
+
+ wmb();
+
+ /* Anti gcc 2.95.3 bugware (sic) */
+ status = opts[0] | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
+ txd->opts1 = cpu_to_le32(status);
+
+ tp->cur_tx += frags + 1;
+
+ wmb();
+
+ RTL_W8(TxPoll, NPQ);
+
+ if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
+ netif_stop_queue(dev);
+ smp_rmb();
+ if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
+ netif_wake_queue(dev);
+ }
+
+ return NETDEV_TX_OK;
+
+err_dma_1:
+ rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
+err_dma_0:
+ dev_kfree_skb(skb);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+
+err_stop_0:
+ netif_stop_queue(dev);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_BUSY;
+}
+
+static void rtl8169_pcierr_interrupt(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ u16 pci_status, pci_cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
+ pci_read_config_word(pdev, PCI_STATUS, &pci_status);
+
+ netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
+ pci_cmd, pci_status);
+
+ /*
+ * The recovery sequence below admits a very elaborated explanation:
+ * - it seems to work;
+ * - I did not see what else could be done;
+ * - it makes iop3xx happy.
+ *
+ * Feel free to adjust to your needs.
+ */
+ if (pdev->broken_parity_status)
+ pci_cmd &= ~PCI_COMMAND_PARITY;
+ else
+ pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
+
+ pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
+
+ pci_write_config_word(pdev, PCI_STATUS,
+ pci_status & (PCI_STATUS_DETECTED_PARITY |
+ PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
+ PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
+
+ /* The infamous DAC f*ckup only happens at boot time */
+ if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ netif_info(tp, intr, dev, "disabling PCI DAC\n");
+ tp->cp_cmd &= ~PCIDAC;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ dev->features &= ~NETIF_F_HIGHDMA;
+ }
+
+ rtl8169_hw_reset(tp);
+
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+}
+
+static void rtl8169_tx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned int dirty_tx, tx_left;
+
+ dirty_tx = tp->dirty_tx;
+ smp_rmb();
+ tx_left = tp->cur_tx - dirty_tx;
+
+ while (tx_left > 0) {
+ unsigned int entry = dirty_tx % NUM_TX_DESC;
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(tp->TxDescArray[entry].opts1);
+ if (status & DescOwn)
+ break;
+
+ rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
+ tp->TxDescArray + entry);
+ if (status & LastFrag) {
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += tx_skb->skb->len;
+ dev_kfree_skb(tx_skb->skb);
+ tx_skb->skb = NULL;
+ }
+ dirty_tx++;
+ tx_left--;
+ }
+
+ if (tp->dirty_tx != dirty_tx) {
+ tp->dirty_tx = dirty_tx;
+ smp_wmb();
+ if (netif_queue_stopped(dev) &&
+ (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
+ netif_wake_queue(dev);
+ }
+ /*
+ * 8168 hack: TxPoll requests are lost when the Tx packets are
+ * too close. Let's kick an extra TxPoll request when a burst
+ * of start_xmit activity is detected (if it is not detected,
+ * it is slow enough). -- FR
+ */
+ smp_rmb();
+ if (tp->cur_tx != dirty_tx)
+ RTL_W8(TxPoll, NPQ);
+ }
+}
+
+static inline int rtl8169_fragmented_frame(u32 status)
+{
+ return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
+}
+
+static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
+{
+ u32 status = opts1 & RxProtoMask;
+
+ if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
+ ((status == RxProtoUDP) && !(opts1 & UDPFail)))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb_checksum_none_assert(skb);
+}
+
+static struct sk_buff *rtl8169_try_rx_copy(void *data,
+ struct rtl8169_private *tp,
+ int pkt_size,
+ dma_addr_t addr)
+{
+ struct sk_buff *skb;
+ struct device *d = &tp->pci_dev->dev;
+
+ data = rtl8169_align(data);
+ dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
+ prefetch(data);
+ skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
+ if (skb)
+ memcpy(skb->data, data, pkt_size);
+ dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
+
+ return skb;
+}
+
+static int rtl8169_rx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr, u32 budget)
+{
+ unsigned int cur_rx, rx_left;
+ unsigned int count;
+
+ cur_rx = tp->cur_rx;
+ rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
+ rx_left = min(rx_left, budget);
+
+ for (; rx_left > 0; rx_left--, cur_rx++) {
+ unsigned int entry = cur_rx % NUM_RX_DESC;
+ struct RxDesc *desc = tp->RxDescArray + entry;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(desc->opts1);
+
+ if (status & DescOwn)
+ break;
+ if (unlikely(status & RxRES)) {
+ netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
+ status);
+ dev->stats.rx_errors++;
+ if (status & (RxRWT | RxRUNT))
+ dev->stats.rx_length_errors++;
+ if (status & RxCRC)
+ dev->stats.rx_crc_errors++;
+ if (status & RxFOVF) {
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+ dev->stats.rx_fifo_errors++;
+ }
+ rtl8169_mark_to_asic(desc, rx_buf_sz);
+ } else {
+ struct sk_buff *skb;
+ dma_addr_t addr = le64_to_cpu(desc->addr);
+ int pkt_size = (status & 0x00001FFF) - 4;
+
+ /*
+ * The driver does not support incoming fragmented
+ * frames. They are seen as a symptom of over-mtu
+ * sized frames.
+ */
+ if (unlikely(rtl8169_fragmented_frame(status))) {
+ dev->stats.rx_dropped++;
+ dev->stats.rx_length_errors++;
+ rtl8169_mark_to_asic(desc, rx_buf_sz);
+ continue;
+ }
+
+ skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
+ tp, pkt_size, addr);
+ rtl8169_mark_to_asic(desc, rx_buf_sz);
+ if (!skb) {
+ dev->stats.rx_dropped++;
+ continue;
+ }
+
+ rtl8169_rx_csum(skb, status);
+ skb_put(skb, pkt_size);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ rtl8169_rx_vlan_tag(desc, skb);
+
+ napi_gro_receive(&tp->napi, skb);
+
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
+ }
+
+ /* Work around for AMD plateform. */
+ if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
+ desc->opts2 = 0;
+ cur_rx++;
+ }
+ }
+
+ count = cur_rx - tp->cur_rx;
+ tp->cur_rx = cur_rx;
+
+ tp->dirty_rx += count;
+
+ return count;
+}
+
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int handled = 0;
+ int status;
+
+ /* loop handling interrupts until we have no new ones or
+ * we hit a invalid/hotplug case.
+ */
+ status = RTL_R16(IntrStatus);
+ while (status && status != 0xffff) {
+ handled = 1;
+
+ /* Handle all of the error cases first. These will reset
+ * the chip, so just exit the loop.
+ */
+ if (unlikely(!netif_running(dev))) {
+ rtl8169_hw_reset(tp);
+ break;
+ }
+
+ if (unlikely(status & RxFIFOOver)) {
+ switch (tp->mac_version) {
+ /* Work around for rx fifo overflow */
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_22:
+ case RTL_GIGA_MAC_VER_26:
+ netif_stop_queue(dev);
+ rtl8169_tx_timeout(dev);
+ goto done;
+ /* Testers needed. */
+ case RTL_GIGA_MAC_VER_17:
+ case RTL_GIGA_MAC_VER_19:
+ case RTL_GIGA_MAC_VER_20:
+ case RTL_GIGA_MAC_VER_21:
+ case RTL_GIGA_MAC_VER_23:
+ case RTL_GIGA_MAC_VER_24:
+ case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ /* Experimental science. Pktgen proof. */
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_25:
+ if (status == RxFIFOOver)
+ goto done;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (unlikely(status & SYSErr)) {
+ rtl8169_pcierr_interrupt(dev);
+ break;
+ }
+
+ if (status & LinkChg)
+ __rtl8169_check_link_status(dev, tp, ioaddr, true);
+
+ /* We need to see the lastest version of tp->intr_mask to
+ * avoid ignoring an MSI interrupt and having to wait for
+ * another event which may never come.
+ */
+ smp_rmb();
+ if (status & tp->intr_mask & tp->napi_event) {
+ RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
+ tp->intr_mask = ~tp->napi_event;
+
+ if (likely(napi_schedule_prep(&tp->napi)))
+ __napi_schedule(&tp->napi);
+ else
+ netif_info(tp, intr, dev,
+ "interrupt %04x in poll\n", status);
+ }
+
+ /* We only get a new MSI interrupt when all active irq
+ * sources on the chip have been acknowledged. So, ack
+ * everything we've seen and check if new sources have become
+ * active to avoid blocking all interrupts from the chip.
+ */
+ RTL_W16(IntrStatus,
+ (status & RxFIFOOver) ? (status | RxOverflow) : status);
+ status = RTL_R16(IntrStatus);
+ }
+done:
+ return IRQ_RETVAL(handled);
+}
+
+static int rtl8169_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
+ struct net_device *dev = tp->dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int work_done;
+
+ work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+
+ if (work_done < budget) {
+ napi_complete(napi);
+
+ /* We need for force the visibility of tp->intr_mask
+ * for other CPUs, as we can loose an MSI interrupt
+ * and potentially wait for a retransmit timeout if we don't.
+ * The posted write to IntrMask is safe, as it will
+ * eventually make it to the chip and we won't loose anything
+ * until it does.
+ */
+ tp->intr_mask = 0xffff;
+ wmb();
+ RTL_W16(IntrMask, tp->intr_event);
+ }
+
+ return work_done;
+}
+
+static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (tp->mac_version > RTL_GIGA_MAC_VER_06)
+ return;
+
+ dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
+ RTL_W32(RxMissed, 0);
+}
+
+static void rtl8169_down(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ del_timer_sync(&tp->timer);
+
+ netif_stop_queue(dev);
+
+ napi_disable(&tp->napi);
+
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_hw_reset(tp);
+ /*
+ * At this point device interrupts can not be enabled in any function,
+ * as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task,
+ * rtl8169_reinit_task) and napi is disabled (rtl8169_poll).
+ */
+ rtl8169_rx_missed(dev, ioaddr);
+
+ spin_unlock_irq(&tp->lock);
+
+ synchronize_irq(dev->irq);
+
+ /* Give a racing hard_start_xmit a few cycles to complete. */
+ synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
+
+ rtl8169_tx_clear(tp);
+
+ rtl8169_rx_clear(tp);
+
+ rtl_pll_power_down(tp);
+}
+
+static int rtl8169_close(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ pm_runtime_get_sync(&pdev->dev);
+
+ /* Update counters before going down */
+ rtl8169_update_counters(dev);
+
+ rtl8169_down(dev);
+
+ free_irq(dev->irq, dev);
+
+ dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+ tp->RxDescArray = NULL;
+
+ pm_runtime_put_sync(&pdev->dev);
+
+ return 0;
+}
+
+static void rtl_set_rx_mode(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp = 0;
+
+ if (dev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ tmp = (RTL_R32(RxConfig) & ~RX_CONFIG_ACCEPT_MASK) | rx_mode;
+
+ if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
+ u32 data = mc_filter[0];
+
+ mc_filter[0] = swab32(mc_filter[1]);
+ mc_filter[1] = swab32(data);
+ }
+
+ RTL_W32(MAR0 + 4, mc_filter[1]);
+ RTL_W32(MAR0 + 0, mc_filter[0]);
+
+ RTL_W32(RxConfig, tmp);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+/**
+ * rtl8169_get_stats - Get rtl8169 read/write statistics
+ * @dev: The Ethernet Device to get statistics for
+ *
+ * Get TX/RX statistics for rtl8169
+ */
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ if (netif_running(dev)) {
+ spin_lock_irqsave(&tp->lock, flags);
+ rtl8169_rx_missed(dev, ioaddr);
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+
+ return &dev->stats;
+}
+
+static void rtl8169_net_suspend(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ return;
+
+ rtl_pll_power_down(tp);
+
+ netif_device_detach(dev);
+ netif_stop_queue(dev);
+}
+
+#ifdef CONFIG_PM
+
+static int rtl8169_suspend(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ rtl8169_net_suspend(dev);
+
+ return 0;
+}
+
+static void __rtl8169_resume(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ netif_device_attach(dev);
+
+ rtl_pll_power_up(tp);
+
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+}
+
+static int rtl8169_resume(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_init_phy(dev, tp);
+
+ if (netif_running(dev))
+ __rtl8169_resume(dev);
+
+ return 0;
+}
+
+static int rtl8169_runtime_suspend(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (!tp->TxDescArray)
+ return 0;
+
+ spin_lock_irq(&tp->lock);
+ tp->saved_wolopts = __rtl8169_get_wol(tp);
+ __rtl8169_set_wol(tp, WAKE_ANY);
+ spin_unlock_irq(&tp->lock);
+
+ rtl8169_net_suspend(dev);
+
+ return 0;
+}
+
+static int rtl8169_runtime_resume(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (!tp->TxDescArray)
+ return 0;
+
+ spin_lock_irq(&tp->lock);
+ __rtl8169_set_wol(tp, tp->saved_wolopts);
+ tp->saved_wolopts = 0;
+ spin_unlock_irq(&tp->lock);
+
+ rtl8169_init_phy(dev, tp);
+
+ __rtl8169_resume(dev);
+
+ return 0;
+}
+
+static int rtl8169_runtime_idle(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->TxDescArray ? -EBUSY : 0;
+}
+
+static const struct dev_pm_ops rtl8169_pm_ops = {
+ .suspend = rtl8169_suspend,
+ .resume = rtl8169_resume,
+ .freeze = rtl8169_suspend,
+ .thaw = rtl8169_resume,
+ .poweroff = rtl8169_suspend,
+ .restore = rtl8169_resume,
+ .runtime_suspend = rtl8169_runtime_suspend,
+ .runtime_resume = rtl8169_runtime_resume,
+ .runtime_idle = rtl8169_runtime_idle,
+};
+
+#define RTL8169_PM_OPS (&rtl8169_pm_ops)
+
+#else /* !CONFIG_PM */
+
+#define RTL8169_PM_OPS NULL
+
+#endif /* !CONFIG_PM */
+
+static void rtl_shutdown(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl8169_net_suspend(dev);
+
+ /* Restore original MAC address */
+ rtl_rar_set(tp, dev->perm_addr);
+
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_hw_reset(tp);
+
+ spin_unlock_irq(&tp->lock);
+
+ if (system_state == SYSTEM_POWER_OFF) {
+ /* WoL fails with 8168b when the receiver is disabled. */
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_11 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_12 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_17) &&
+ (tp->features & RTL_FEATURE_WOL)) {
+ pci_clear_master(pdev);
+
+ RTL_W8(ChipCmd, CmdRxEnb);
+ /* PCI commit */
+ RTL_R8(ChipCmd);
+ }
+
+ pci_wake_from_d3(pdev, true);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
+}
+
+static struct pci_driver rtl8169_pci_driver = {
+ .name = MODULENAME,
+ .id_table = rtl8169_pci_tbl,
+ .probe = rtl8169_init_one,
+ .remove = __devexit_p(rtl8169_remove_one),
+ .shutdown = rtl_shutdown,
+ .driver.pm = RTL8169_PM_OPS,
+};
+
+static int __init rtl8169_init_module(void)
+{
+ return pci_register_driver(&rtl8169_pci_driver);
+}
+
+static void __exit rtl8169_cleanup_module(void)
+{
+ pci_unregister_driver(&rtl8169_pci_driver);
+}
+
+module_init(rtl8169_init_module);
+module_exit(rtl8169_cleanup_module);
--- /dev/null
+/* Silan SC92031 PCI Fast Ethernet Adapter driver
+ *
+ * Based on vendor drivers:
+ * Silan Fast Ethernet Netcard Driver:
+ * MODULE_AUTHOR ("gaoyonghong");
+ * MODULE_DESCRIPTION ("SILAN Fast Ethernet driver");
+ * MODULE_LICENSE("GPL");
+ * 8139D Fast Ethernet driver:
+ * (C) 2002 by gaoyonghong
+ * MODULE_AUTHOR ("gaoyonghong");
+ * MODULE_DESCRIPTION ("Rsltek 8139D PCI Fast Ethernet Adapter driver");
+ * MODULE_LICENSE("GPL");
+ * Both are almost identical and seem to be based on pci-skeleton.c
+ *
+ * Rewritten for 2.6 by Cesar Eduardo Barros
+ *
+ * A datasheet for this chip can be found at
+ * http://www.silan.com.cn/english/product/pdf/SC92031AY.pdf
+ */
+
+/* Note about set_mac_address: I don't know how to change the hardware
+ * matching, so you need to enable IFF_PROMISC when using it.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/crc32.h>
+
+#include <asm/irq.h>
+
+#define SC92031_NAME "sc92031"
+
+/* BAR 0 is MMIO, BAR 1 is PIO */
+#ifndef SC92031_USE_BAR
+#define SC92031_USE_BAR 0
+#endif
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */
+static int multicast_filter_limit = 64;
+module_param(multicast_filter_limit, int, 0);
+MODULE_PARM_DESC(multicast_filter_limit,
+ "Maximum number of filtered multicast addresses");
+
+static int media;
+module_param(media, int, 0);
+MODULE_PARM_DESC(media, "Media type (0x00 = autodetect,"
+ " 0x01 = 10M half, 0x02 = 10M full,"
+ " 0x04 = 100M half, 0x08 = 100M full)");
+
+/* Size of the in-memory receive ring. */
+#define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K ,4==128K*/
+#define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
+
+/* Number of Tx descriptor registers. */
+#define NUM_TX_DESC 4
+
+/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
+#define MAX_ETH_FRAME_SIZE 1536
+
+/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
+#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
+#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
+
+/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
+#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (4*HZ)
+
+#define SILAN_STATS_NUM 2 /* number of ETHTOOL_GSTATS */
+
+/* media options */
+#define AUTOSELECT 0x00
+#define M10_HALF 0x01
+#define M10_FULL 0x02
+#define M100_HALF 0x04
+#define M100_FULL 0x08
+
+ /* Symbolic offsets to registers. */
+enum silan_registers {
+ Config0 = 0x00, // Config0
+ Config1 = 0x04, // Config1
+ RxBufWPtr = 0x08, // Rx buffer writer poiter
+ IntrStatus = 0x0C, // Interrupt status
+ IntrMask = 0x10, // Interrupt mask
+ RxbufAddr = 0x14, // Rx buffer start address
+ RxBufRPtr = 0x18, // Rx buffer read pointer
+ Txstatusall = 0x1C, // Transmit status of all descriptors
+ TxStatus0 = 0x20, // Transmit status (Four 32bit registers).
+ TxAddr0 = 0x30, // Tx descriptors (also four 32bit).
+ RxConfig = 0x40, // Rx configuration
+ MAC0 = 0x44, // Ethernet hardware address.
+ MAR0 = 0x4C, // Multicast filter.
+ RxStatus0 = 0x54, // Rx status
+ TxConfig = 0x5C, // Tx configuration
+ PhyCtrl = 0x60, // physical control
+ FlowCtrlConfig = 0x64, // flow control
+ Miicmd0 = 0x68, // Mii command0 register
+ Miicmd1 = 0x6C, // Mii command1 register
+ Miistatus = 0x70, // Mii status register
+ Timercnt = 0x74, // Timer counter register
+ TimerIntr = 0x78, // Timer interrupt register
+ PMConfig = 0x7C, // Power Manager configuration
+ CRC0 = 0x80, // Power Manager CRC ( Two 32bit regisers)
+ Wakeup0 = 0x88, // power Manager wakeup( Eight 64bit regiser)
+ LSBCRC0 = 0xC8, // power Manager LSBCRC(Two 32bit regiser)
+ TestD0 = 0xD0,
+ TestD4 = 0xD4,
+ TestD8 = 0xD8,
+};
+
+#define MII_BMCR 0 // Basic mode control register
+#define MII_BMSR 1 // Basic mode status register
+#define MII_JAB 16
+#define MII_OutputStatus 24
+
+#define BMCR_FULLDPLX 0x0100 // Full duplex
+#define BMCR_ANRESTART 0x0200 // Auto negotiation restart
+#define BMCR_ANENABLE 0x1000 // Enable auto negotiation
+#define BMCR_SPEED100 0x2000 // Select 100Mbps
+#define BMSR_LSTATUS 0x0004 // Link status
+#define PHY_16_JAB_ENB 0x1000
+#define PHY_16_PORT_ENB 0x1
+
+enum IntrStatusBits {
+ LinkFail = 0x80000000,
+ LinkOK = 0x40000000,
+ TimeOut = 0x20000000,
+ RxOverflow = 0x0040,
+ RxOK = 0x0020,
+ TxOK = 0x0001,
+ IntrBits = LinkFail|LinkOK|TimeOut|RxOverflow|RxOK|TxOK,
+};
+
+enum TxStatusBits {
+ TxCarrierLost = 0x20000000,
+ TxAborted = 0x10000000,
+ TxOutOfWindow = 0x08000000,
+ TxNccShift = 22,
+ EarlyTxThresShift = 16,
+ TxStatOK = 0x8000,
+ TxUnderrun = 0x4000,
+ TxOwn = 0x2000,
+};
+
+enum RxStatusBits {
+ RxStatesOK = 0x80000,
+ RxBadAlign = 0x40000,
+ RxHugeFrame = 0x20000,
+ RxSmallFrame = 0x10000,
+ RxCRCOK = 0x8000,
+ RxCrlFrame = 0x4000,
+ Rx_Broadcast = 0x2000,
+ Rx_Multicast = 0x1000,
+ RxAddrMatch = 0x0800,
+ MiiErr = 0x0400,
+};
+
+enum RxConfigBits {
+ RxFullDx = 0x80000000,
+ RxEnb = 0x40000000,
+ RxSmall = 0x20000000,
+ RxHuge = 0x10000000,
+ RxErr = 0x08000000,
+ RxAllphys = 0x04000000,
+ RxMulticast = 0x02000000,
+ RxBroadcast = 0x01000000,
+ RxLoopBack = (1 << 23) | (1 << 22),
+ LowThresholdShift = 12,
+ HighThresholdShift = 2,
+};
+
+enum TxConfigBits {
+ TxFullDx = 0x80000000,
+ TxEnb = 0x40000000,
+ TxEnbPad = 0x20000000,
+ TxEnbHuge = 0x10000000,
+ TxEnbFCS = 0x08000000,
+ TxNoBackOff = 0x04000000,
+ TxEnbPrem = 0x02000000,
+ TxCareLostCrs = 0x1000000,
+ TxExdCollNum = 0xf00000,
+ TxDataRate = 0x80000,
+};
+
+enum PhyCtrlconfigbits {
+ PhyCtrlAne = 0x80000000,
+ PhyCtrlSpd100 = 0x40000000,
+ PhyCtrlSpd10 = 0x20000000,
+ PhyCtrlPhyBaseAddr = 0x1f000000,
+ PhyCtrlDux = 0x800000,
+ PhyCtrlReset = 0x400000,
+};
+
+enum FlowCtrlConfigBits {
+ FlowCtrlFullDX = 0x80000000,
+ FlowCtrlEnb = 0x40000000,
+};
+
+enum Config0Bits {
+ Cfg0_Reset = 0x80000000,
+ Cfg0_Anaoff = 0x40000000,
+ Cfg0_LDPS = 0x20000000,
+};
+
+enum Config1Bits {
+ Cfg1_EarlyRx = 1 << 31,
+ Cfg1_EarlyTx = 1 << 30,
+
+ //rx buffer size
+ Cfg1_Rcv8K = 0x0,
+ Cfg1_Rcv16K = 0x1,
+ Cfg1_Rcv32K = 0x3,
+ Cfg1_Rcv64K = 0x7,
+ Cfg1_Rcv128K = 0xf,
+};
+
+enum MiiCmd0Bits {
+ Mii_Divider = 0x20000000,
+ Mii_WRITE = 0x400000,
+ Mii_READ = 0x200000,
+ Mii_SCAN = 0x100000,
+ Mii_Tamod = 0x80000,
+ Mii_Drvmod = 0x40000,
+ Mii_mdc = 0x20000,
+ Mii_mdoen = 0x10000,
+ Mii_mdo = 0x8000,
+ Mii_mdi = 0x4000,
+};
+
+enum MiiStatusBits {
+ Mii_StatusBusy = 0x80000000,
+};
+
+enum PMConfigBits {
+ PM_Enable = 1 << 31,
+ PM_LongWF = 1 << 30,
+ PM_Magic = 1 << 29,
+ PM_LANWake = 1 << 28,
+ PM_LWPTN = (1 << 27 | 1<< 26),
+ PM_LinkUp = 1 << 25,
+ PM_WakeUp = 1 << 24,
+};
+
+/* Locking rules:
+ * priv->lock protects most of the fields of priv and most of the
+ * hardware registers. It does not have to protect against softirqs
+ * between sc92031_disable_interrupts and sc92031_enable_interrupts;
+ * it also does not need to be used in ->open and ->stop while the
+ * device interrupts are off.
+ * Not having to protect against softirqs is very useful due to heavy
+ * use of mdelay() at _sc92031_reset.
+ * Functions prefixed with _sc92031_ must be called with the lock held;
+ * functions prefixed with sc92031_ must be called without the lock held.
+ * Use mmiowb() before unlocking if the hardware was written to.
+ */
+
+/* Locking rules for the interrupt:
+ * - the interrupt and the tasklet never run at the same time
+ * - neither run between sc92031_disable_interrupts and
+ * sc92031_enable_interrupt
+ */
+
+struct sc92031_priv {
+ spinlock_t lock;
+ /* iomap.h cookie */
+ void __iomem *port_base;
+ /* pci device structure */
+ struct pci_dev *pdev;
+ /* tasklet */
+ struct tasklet_struct tasklet;
+
+ /* CPU address of rx ring */
+ void *rx_ring;
+ /* PCI address of rx ring */
+ dma_addr_t rx_ring_dma_addr;
+ /* PCI address of rx ring read pointer */
+ dma_addr_t rx_ring_tail;
+
+ /* tx ring write index */
+ unsigned tx_head;
+ /* tx ring read index */
+ unsigned tx_tail;
+ /* CPU address of tx bounce buffer */
+ void *tx_bufs;
+ /* PCI address of tx bounce buffer */
+ dma_addr_t tx_bufs_dma_addr;
+
+ /* copies of some hardware registers */
+ u32 intr_status;
+ atomic_t intr_mask;
+ u32 rx_config;
+ u32 tx_config;
+ u32 pm_config;
+
+ /* copy of some flags from dev->flags */
+ unsigned int mc_flags;
+
+ /* for ETHTOOL_GSTATS */
+ u64 tx_timeouts;
+ u64 rx_loss;
+
+ /* for dev->get_stats */
+ long rx_value;
+};
+
+/* I don't know which registers can be safely read; however, I can guess
+ * MAC0 is one of them. */
+static inline void _sc92031_dummy_read(void __iomem *port_base)
+{
+ ioread32(port_base + MAC0);
+}
+
+static u32 _sc92031_mii_wait(void __iomem *port_base)
+{
+ u32 mii_status;
+
+ do {
+ udelay(10);
+ mii_status = ioread32(port_base + Miistatus);
+ } while (mii_status & Mii_StatusBusy);
+
+ return mii_status;
+}
+
+static u32 _sc92031_mii_cmd(void __iomem *port_base, u32 cmd0, u32 cmd1)
+{
+ iowrite32(Mii_Divider, port_base + Miicmd0);
+
+ _sc92031_mii_wait(port_base);
+
+ iowrite32(cmd1, port_base + Miicmd1);
+ iowrite32(Mii_Divider | cmd0, port_base + Miicmd0);
+
+ return _sc92031_mii_wait(port_base);
+}
+
+static void _sc92031_mii_scan(void __iomem *port_base)
+{
+ _sc92031_mii_cmd(port_base, Mii_SCAN, 0x1 << 6);
+}
+
+static u16 _sc92031_mii_read(void __iomem *port_base, unsigned reg)
+{
+ return _sc92031_mii_cmd(port_base, Mii_READ, reg << 6) >> 13;
+}
+
+static void _sc92031_mii_write(void __iomem *port_base, unsigned reg, u16 val)
+{
+ _sc92031_mii_cmd(port_base, Mii_WRITE, (reg << 6) | ((u32)val << 11));
+}
+
+static void sc92031_disable_interrupts(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ /* tell the tasklet/interrupt not to enable interrupts */
+ atomic_set(&priv->intr_mask, 0);
+ wmb();
+
+ /* stop interrupts */
+ iowrite32(0, port_base + IntrMask);
+ _sc92031_dummy_read(port_base);
+ mmiowb();
+
+ /* wait for any concurrent interrupt/tasklet to finish */
+ synchronize_irq(dev->irq);
+ tasklet_disable(&priv->tasklet);
+}
+
+static void sc92031_enable_interrupts(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ tasklet_enable(&priv->tasklet);
+
+ atomic_set(&priv->intr_mask, IntrBits);
+ wmb();
+
+ iowrite32(IntrBits, port_base + IntrMask);
+ mmiowb();
+}
+
+static void _sc92031_disable_tx_rx(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ priv->rx_config &= ~RxEnb;
+ priv->tx_config &= ~TxEnb;
+ iowrite32(priv->rx_config, port_base + RxConfig);
+ iowrite32(priv->tx_config, port_base + TxConfig);
+}
+
+static void _sc92031_enable_tx_rx(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ priv->rx_config |= RxEnb;
+ priv->tx_config |= TxEnb;
+ iowrite32(priv->rx_config, port_base + RxConfig);
+ iowrite32(priv->tx_config, port_base + TxConfig);
+}
+
+static void _sc92031_tx_clear(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ while (priv->tx_head - priv->tx_tail > 0) {
+ priv->tx_tail++;
+ dev->stats.tx_dropped++;
+ }
+ priv->tx_head = priv->tx_tail = 0;
+}
+
+static void _sc92031_set_mar(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 mar0 = 0, mar1 = 0;
+
+ if ((dev->flags & IFF_PROMISC) ||
+ netdev_mc_count(dev) > multicast_filter_limit ||
+ (dev->flags & IFF_ALLMULTI))
+ mar0 = mar1 = 0xffffffff;
+ else if (dev->flags & IFF_MULTICAST) {
+ struct netdev_hw_addr *ha;
+
+ netdev_for_each_mc_addr(ha, dev) {
+ u32 crc;
+ unsigned bit = 0;
+
+ crc = ~ether_crc(ETH_ALEN, ha->addr);
+ crc >>= 24;
+
+ if (crc & 0x01) bit |= 0x02;
+ if (crc & 0x02) bit |= 0x01;
+ if (crc & 0x10) bit |= 0x20;
+ if (crc & 0x20) bit |= 0x10;
+ if (crc & 0x40) bit |= 0x08;
+ if (crc & 0x80) bit |= 0x04;
+
+ if (bit > 31)
+ mar0 |= 0x1 << (bit - 32);
+ else
+ mar1 |= 0x1 << bit;
+ }
+ }
+
+ iowrite32(mar0, port_base + MAR0);
+ iowrite32(mar1, port_base + MAR0 + 4);
+}
+
+static void _sc92031_set_rx_config(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ unsigned int old_mc_flags;
+ u32 rx_config_bits = 0;
+
+ old_mc_flags = priv->mc_flags;
+
+ if (dev->flags & IFF_PROMISC)
+ rx_config_bits |= RxSmall | RxHuge | RxErr | RxBroadcast
+ | RxMulticast | RxAllphys;
+
+ if (dev->flags & (IFF_ALLMULTI | IFF_MULTICAST))
+ rx_config_bits |= RxMulticast;
+
+ if (dev->flags & IFF_BROADCAST)
+ rx_config_bits |= RxBroadcast;
+
+ priv->rx_config &= ~(RxSmall | RxHuge | RxErr | RxBroadcast
+ | RxMulticast | RxAllphys);
+ priv->rx_config |= rx_config_bits;
+
+ priv->mc_flags = dev->flags & (IFF_PROMISC | IFF_ALLMULTI
+ | IFF_MULTICAST | IFF_BROADCAST);
+
+ if (netif_carrier_ok(dev) && priv->mc_flags != old_mc_flags)
+ iowrite32(priv->rx_config, port_base + RxConfig);
+}
+
+static bool _sc92031_check_media(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u16 bmsr;
+
+ bmsr = _sc92031_mii_read(port_base, MII_BMSR);
+ rmb();
+ if (bmsr & BMSR_LSTATUS) {
+ bool speed_100, duplex_full;
+ u32 flow_ctrl_config = 0;
+ u16 output_status = _sc92031_mii_read(port_base,
+ MII_OutputStatus);
+ _sc92031_mii_scan(port_base);
+
+ speed_100 = output_status & 0x2;
+ duplex_full = output_status & 0x4;
+
+ /* Initial Tx/Rx configuration */
+ priv->rx_config = (0x40 << LowThresholdShift) | (0x1c0 << HighThresholdShift);
+ priv->tx_config = 0x48800000;
+
+ /* NOTE: vendor driver had dead code here to enable tx padding */
+
+ if (!speed_100)
+ priv->tx_config |= 0x80000;
+
+ // configure rx mode
+ _sc92031_set_rx_config(dev);
+
+ if (duplex_full) {
+ priv->rx_config |= RxFullDx;
+ priv->tx_config |= TxFullDx;
+ flow_ctrl_config = FlowCtrlFullDX | FlowCtrlEnb;
+ } else {
+ priv->rx_config &= ~RxFullDx;
+ priv->tx_config &= ~TxFullDx;
+ }
+
+ _sc92031_set_mar(dev);
+ _sc92031_set_rx_config(dev);
+ _sc92031_enable_tx_rx(dev);
+ iowrite32(flow_ctrl_config, port_base + FlowCtrlConfig);
+
+ netif_carrier_on(dev);
+
+ if (printk_ratelimit())
+ printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n",
+ dev->name,
+ speed_100 ? "100" : "10",
+ duplex_full ? "full" : "half");
+ return true;
+ } else {
+ _sc92031_mii_scan(port_base);
+
+ netif_carrier_off(dev);
+
+ _sc92031_disable_tx_rx(dev);
+
+ if (printk_ratelimit())
+ printk(KERN_INFO "%s: link down\n", dev->name);
+ return false;
+ }
+}
+
+static void _sc92031_phy_reset(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 phy_ctrl;
+
+ phy_ctrl = ioread32(port_base + PhyCtrl);
+ phy_ctrl &= ~(PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10);
+ phy_ctrl |= PhyCtrlAne | PhyCtrlReset;
+
+ switch (media) {
+ default:
+ case AUTOSELECT:
+ phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
+ break;
+ case M10_HALF:
+ phy_ctrl |= PhyCtrlSpd10;
+ break;
+ case M10_FULL:
+ phy_ctrl |= PhyCtrlDux | PhyCtrlSpd10;
+ break;
+ case M100_HALF:
+ phy_ctrl |= PhyCtrlSpd100;
+ break;
+ case M100_FULL:
+ phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
+ break;
+ }
+
+ iowrite32(phy_ctrl, port_base + PhyCtrl);
+ mdelay(10);
+
+ phy_ctrl &= ~PhyCtrlReset;
+ iowrite32(phy_ctrl, port_base + PhyCtrl);
+ mdelay(1);
+
+ _sc92031_mii_write(port_base, MII_JAB,
+ PHY_16_JAB_ENB | PHY_16_PORT_ENB);
+ _sc92031_mii_scan(port_base);
+
+ netif_carrier_off(dev);
+ netif_stop_queue(dev);
+}
+
+static void _sc92031_reset(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ /* disable PM */
+ iowrite32(0, port_base + PMConfig);
+
+ /* soft reset the chip */
+ iowrite32(Cfg0_Reset, port_base + Config0);
+ mdelay(200);
+
+ iowrite32(0, port_base + Config0);
+ mdelay(10);
+
+ /* disable interrupts */
+ iowrite32(0, port_base + IntrMask);
+
+ /* clear multicast address */
+ iowrite32(0, port_base + MAR0);
+ iowrite32(0, port_base + MAR0 + 4);
+
+ /* init rx ring */
+ iowrite32(priv->rx_ring_dma_addr, port_base + RxbufAddr);
+ priv->rx_ring_tail = priv->rx_ring_dma_addr;
+
+ /* init tx ring */
+ _sc92031_tx_clear(dev);
+
+ /* clear old register values */
+ priv->intr_status = 0;
+ atomic_set(&priv->intr_mask, 0);
+ priv->rx_config = 0;
+ priv->tx_config = 0;
+ priv->mc_flags = 0;
+
+ /* configure rx buffer size */
+ /* NOTE: vendor driver had dead code here to enable early tx/rx */
+ iowrite32(Cfg1_Rcv64K, port_base + Config1);
+
+ _sc92031_phy_reset(dev);
+ _sc92031_check_media(dev);
+
+ /* calculate rx fifo overflow */
+ priv->rx_value = 0;
+
+ /* enable PM */
+ iowrite32(priv->pm_config, port_base + PMConfig);
+
+ /* clear intr register */
+ ioread32(port_base + IntrStatus);
+}
+
+static void _sc92031_tx_tasklet(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ unsigned old_tx_tail;
+ unsigned entry;
+ u32 tx_status;
+
+ old_tx_tail = priv->tx_tail;
+ while (priv->tx_head - priv->tx_tail > 0) {
+ entry = priv->tx_tail % NUM_TX_DESC;
+ tx_status = ioread32(port_base + TxStatus0 + entry * 4);
+
+ if (!(tx_status & (TxStatOK | TxUnderrun | TxAborted)))
+ break;
+
+ priv->tx_tail++;
+
+ if (tx_status & TxStatOK) {
+ dev->stats.tx_bytes += tx_status & 0x1fff;
+ dev->stats.tx_packets++;
+ /* Note: TxCarrierLost is always asserted at 100mbps. */
+ dev->stats.collisions += (tx_status >> 22) & 0xf;
+ }
+
+ if (tx_status & (TxOutOfWindow | TxAborted)) {
+ dev->stats.tx_errors++;
+
+ if (tx_status & TxAborted)
+ dev->stats.tx_aborted_errors++;
+
+ if (tx_status & TxCarrierLost)
+ dev->stats.tx_carrier_errors++;
+
+ if (tx_status & TxOutOfWindow)
+ dev->stats.tx_window_errors++;
+ }
+
+ if (tx_status & TxUnderrun)
+ dev->stats.tx_fifo_errors++;
+ }
+
+ if (priv->tx_tail != old_tx_tail)
+ if (netif_queue_stopped(dev))
+ netif_wake_queue(dev);
+}
+
+static void _sc92031_rx_tasklet_error(struct net_device *dev,
+ u32 rx_status, unsigned rx_size)
+{
+ if(rx_size > (MAX_ETH_FRAME_SIZE + 4) || rx_size < 16) {
+ dev->stats.rx_errors++;
+ dev->stats.rx_length_errors++;
+ }
+
+ if (!(rx_status & RxStatesOK)) {
+ dev->stats.rx_errors++;
+
+ if (rx_status & (RxHugeFrame | RxSmallFrame))
+ dev->stats.rx_length_errors++;
+
+ if (rx_status & RxBadAlign)
+ dev->stats.rx_frame_errors++;
+
+ if (!(rx_status & RxCRCOK))
+ dev->stats.rx_crc_errors++;
+ } else {
+ struct sc92031_priv *priv = netdev_priv(dev);
+ priv->rx_loss++;
+ }
+}
+
+static void _sc92031_rx_tasklet(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ dma_addr_t rx_ring_head;
+ unsigned rx_len;
+ unsigned rx_ring_offset;
+ void *rx_ring = priv->rx_ring;
+
+ rx_ring_head = ioread32(port_base + RxBufWPtr);
+ rmb();
+
+ /* rx_ring_head is only 17 bits in the RxBufWPtr register.
+ * we need to change it to 32 bits physical address
+ */
+ rx_ring_head &= (dma_addr_t)(RX_BUF_LEN - 1);
+ rx_ring_head |= priv->rx_ring_dma_addr & ~(dma_addr_t)(RX_BUF_LEN - 1);
+ if (rx_ring_head < priv->rx_ring_dma_addr)
+ rx_ring_head += RX_BUF_LEN;
+
+ if (rx_ring_head >= priv->rx_ring_tail)
+ rx_len = rx_ring_head - priv->rx_ring_tail;
+ else
+ rx_len = RX_BUF_LEN - (priv->rx_ring_tail - rx_ring_head);
+
+ if (!rx_len)
+ return;
+
+ if (unlikely(rx_len > RX_BUF_LEN)) {
+ if (printk_ratelimit())
+ printk(KERN_ERR "%s: rx packets length > rx buffer\n",
+ dev->name);
+ return;
+ }
+
+ rx_ring_offset = (priv->rx_ring_tail - priv->rx_ring_dma_addr) % RX_BUF_LEN;
+
+ while (rx_len) {
+ u32 rx_status;
+ unsigned rx_size, rx_size_align, pkt_size;
+ struct sk_buff *skb;
+
+ rx_status = le32_to_cpup((__le32 *)(rx_ring + rx_ring_offset));
+ rmb();
+
+ rx_size = rx_status >> 20;
+ rx_size_align = (rx_size + 3) & ~3; // for 4 bytes aligned
+ pkt_size = rx_size - 4; // Omit the four octet CRC from the length.
+
+ rx_ring_offset = (rx_ring_offset + 4) % RX_BUF_LEN;
+
+ if (unlikely(rx_status == 0 ||
+ rx_size > (MAX_ETH_FRAME_SIZE + 4) ||
+ rx_size < 16 ||
+ !(rx_status & RxStatesOK))) {
+ _sc92031_rx_tasklet_error(dev, rx_status, rx_size);
+ break;
+ }
+
+ if (unlikely(rx_size_align + 4 > rx_len)) {
+ if (printk_ratelimit())
+ printk(KERN_ERR "%s: rx_len is too small\n", dev->name);
+ break;
+ }
+
+ rx_len -= rx_size_align + 4;
+
+ skb = netdev_alloc_skb_ip_align(dev, pkt_size);
+ if (unlikely(!skb)) {
+ if (printk_ratelimit())
+ printk(KERN_ERR "%s: Couldn't allocate a skb_buff for a packet of size %u\n",
+ dev->name, pkt_size);
+ goto next;
+ }
+
+ if ((rx_ring_offset + pkt_size) > RX_BUF_LEN) {
+ memcpy(skb_put(skb, RX_BUF_LEN - rx_ring_offset),
+ rx_ring + rx_ring_offset, RX_BUF_LEN - rx_ring_offset);
+ memcpy(skb_put(skb, pkt_size - (RX_BUF_LEN - rx_ring_offset)),
+ rx_ring, pkt_size - (RX_BUF_LEN - rx_ring_offset));
+ } else {
+ memcpy(skb_put(skb, pkt_size), rx_ring + rx_ring_offset, pkt_size);
+ }
+
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
+
+ if (rx_status & Rx_Multicast)
+ dev->stats.multicast++;
+
+ next:
+ rx_ring_offset = (rx_ring_offset + rx_size_align) % RX_BUF_LEN;
+ }
+ mb();
+
+ priv->rx_ring_tail = rx_ring_head;
+ iowrite32(priv->rx_ring_tail, port_base + RxBufRPtr);
+}
+
+static void _sc92031_link_tasklet(struct net_device *dev)
+{
+ if (_sc92031_check_media(dev))
+ netif_wake_queue(dev);
+ else {
+ netif_stop_queue(dev);
+ dev->stats.tx_carrier_errors++;
+ }
+}
+
+static void sc92031_tasklet(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 intr_status, intr_mask;
+
+ intr_status = priv->intr_status;
+
+ spin_lock(&priv->lock);
+
+ if (unlikely(!netif_running(dev)))
+ goto out;
+
+ if (intr_status & TxOK)
+ _sc92031_tx_tasklet(dev);
+
+ if (intr_status & RxOK)
+ _sc92031_rx_tasklet(dev);
+
+ if (intr_status & RxOverflow)
+ dev->stats.rx_errors++;
+
+ if (intr_status & TimeOut) {
+ dev->stats.rx_errors++;
+ dev->stats.rx_length_errors++;
+ }
+
+ if (intr_status & (LinkFail | LinkOK))
+ _sc92031_link_tasklet(dev);
+
+out:
+ intr_mask = atomic_read(&priv->intr_mask);
+ rmb();
+
+ iowrite32(intr_mask, port_base + IntrMask);
+ mmiowb();
+
+ spin_unlock(&priv->lock);
+}
+
+static irqreturn_t sc92031_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 intr_status, intr_mask;
+
+ /* mask interrupts before clearing IntrStatus */
+ iowrite32(0, port_base + IntrMask);
+ _sc92031_dummy_read(port_base);
+
+ intr_status = ioread32(port_base + IntrStatus);
+ if (unlikely(intr_status == 0xffffffff))
+ return IRQ_NONE; // hardware has gone missing
+
+ intr_status &= IntrBits;
+ if (!intr_status)
+ goto out_none;
+
+ priv->intr_status = intr_status;
+ tasklet_schedule(&priv->tasklet);
+
+ return IRQ_HANDLED;
+
+out_none:
+ intr_mask = atomic_read(&priv->intr_mask);
+ rmb();
+
+ iowrite32(intr_mask, port_base + IntrMask);
+ mmiowb();
+
+ return IRQ_NONE;
+}
+
+static struct net_device_stats *sc92031_get_stats(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+
+ // FIXME I do not understand what is this trying to do.
+ if (netif_running(dev)) {
+ int temp;
+
+ spin_lock_bh(&priv->lock);
+
+ /* Update the error count. */
+ temp = (ioread32(port_base + RxStatus0) >> 16) & 0xffff;
+
+ if (temp == 0xffff) {
+ priv->rx_value += temp;
+ dev->stats.rx_fifo_errors = priv->rx_value;
+ } else
+ dev->stats.rx_fifo_errors = temp + priv->rx_value;
+
+ spin_unlock_bh(&priv->lock);
+ }
+
+ return &dev->stats;
+}
+
+static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ unsigned len;
+ unsigned entry;
+ u32 tx_status;
+
+ if (unlikely(skb->len > TX_BUF_SIZE)) {
+ dev->stats.tx_dropped++;
+ goto out;
+ }
+
+ spin_lock(&priv->lock);
+
+ if (unlikely(!netif_carrier_ok(dev))) {
+ dev->stats.tx_dropped++;
+ goto out_unlock;
+ }
+
+ BUG_ON(priv->tx_head - priv->tx_tail >= NUM_TX_DESC);
+
+ entry = priv->tx_head++ % NUM_TX_DESC;
+
+ skb_copy_and_csum_dev(skb, priv->tx_bufs + entry * TX_BUF_SIZE);
+
+ len = skb->len;
+ if (len < ETH_ZLEN) {
+ memset(priv->tx_bufs + entry * TX_BUF_SIZE + len,
+ 0, ETH_ZLEN - len);
+ len = ETH_ZLEN;
+ }
+
+ wmb();
+
+ if (len < 100)
+ tx_status = len;
+ else if (len < 300)
+ tx_status = 0x30000 | len;
+ else
+ tx_status = 0x50000 | len;
+
+ iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE,
+ port_base + TxAddr0 + entry * 4);
+ iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
+ mmiowb();
+
+ if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
+ netif_stop_queue(dev);
+
+out_unlock:
+ spin_unlock(&priv->lock);
+
+out:
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static int sc92031_open(struct net_device *dev)
+{
+ int err;
+ struct sc92031_priv *priv = netdev_priv(dev);
+ struct pci_dev *pdev = priv->pdev;
+
+ priv->rx_ring = pci_alloc_consistent(pdev, RX_BUF_LEN,
+ &priv->rx_ring_dma_addr);
+ if (unlikely(!priv->rx_ring)) {
+ err = -ENOMEM;
+ goto out_alloc_rx_ring;
+ }
+
+ priv->tx_bufs = pci_alloc_consistent(pdev, TX_BUF_TOT_LEN,
+ &priv->tx_bufs_dma_addr);
+ if (unlikely(!priv->tx_bufs)) {
+ err = -ENOMEM;
+ goto out_alloc_tx_bufs;
+ }
+ priv->tx_head = priv->tx_tail = 0;
+
+ err = request_irq(pdev->irq, sc92031_interrupt,
+ IRQF_SHARED, dev->name, dev);
+ if (unlikely(err < 0))
+ goto out_request_irq;
+
+ priv->pm_config = 0;
+
+ /* Interrupts already disabled by sc92031_stop or sc92031_probe */
+ spin_lock_bh(&priv->lock);
+
+ _sc92031_reset(dev);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+ sc92031_enable_interrupts(dev);
+
+ if (netif_carrier_ok(dev))
+ netif_start_queue(dev);
+ else
+ netif_tx_disable(dev);
+
+ return 0;
+
+out_request_irq:
+ pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
+ priv->tx_bufs_dma_addr);
+out_alloc_tx_bufs:
+ pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
+ priv->rx_ring_dma_addr);
+out_alloc_rx_ring:
+ return err;
+}
+
+static int sc92031_stop(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ struct pci_dev *pdev = priv->pdev;
+
+ netif_tx_disable(dev);
+
+ /* Disable interrupts, stop Tx and Rx. */
+ sc92031_disable_interrupts(dev);
+
+ spin_lock_bh(&priv->lock);
+
+ _sc92031_disable_tx_rx(dev);
+ _sc92031_tx_clear(dev);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+
+ free_irq(pdev->irq, dev);
+ pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
+ priv->tx_bufs_dma_addr);
+ pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
+ priv->rx_ring_dma_addr);
+
+ return 0;
+}
+
+static void sc92031_set_multicast_list(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ spin_lock_bh(&priv->lock);
+
+ _sc92031_set_mar(dev);
+ _sc92031_set_rx_config(dev);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+}
+
+static void sc92031_tx_timeout(struct net_device *dev)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ /* Disable interrupts by clearing the interrupt mask.*/
+ sc92031_disable_interrupts(dev);
+
+ spin_lock(&priv->lock);
+
+ priv->tx_timeouts++;
+
+ _sc92031_reset(dev);
+ mmiowb();
+
+ spin_unlock(&priv->lock);
+
+ /* enable interrupts */
+ sc92031_enable_interrupts(dev);
+
+ if (netif_carrier_ok(dev))
+ netif_wake_queue(dev);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void sc92031_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ if (sc92031_interrupt(dev->irq, dev) != IRQ_NONE)
+ sc92031_tasklet((unsigned long)dev);
+ enable_irq(dev->irq);
+}
+#endif
+
+static int sc92031_ethtool_get_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u8 phy_address;
+ u32 phy_ctrl;
+ u16 output_status;
+
+ spin_lock_bh(&priv->lock);
+
+ phy_address = ioread32(port_base + Miicmd1) >> 27;
+ phy_ctrl = ioread32(port_base + PhyCtrl);
+
+ output_status = _sc92031_mii_read(port_base, MII_OutputStatus);
+ _sc92031_mii_scan(port_base);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+
+ cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full
+ | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full
+ | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII;
+
+ cmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
+
+ if ((phy_ctrl & (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
+ == (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
+ cmd->advertising |= ADVERTISED_Autoneg;
+
+ if ((phy_ctrl & PhyCtrlSpd10) == PhyCtrlSpd10)
+ cmd->advertising |= ADVERTISED_10baseT_Half;
+
+ if ((phy_ctrl & (PhyCtrlSpd10 | PhyCtrlDux))
+ == (PhyCtrlSpd10 | PhyCtrlDux))
+ cmd->advertising |= ADVERTISED_10baseT_Full;
+
+ if ((phy_ctrl & PhyCtrlSpd100) == PhyCtrlSpd100)
+ cmd->advertising |= ADVERTISED_100baseT_Half;
+
+ if ((phy_ctrl & (PhyCtrlSpd100 | PhyCtrlDux))
+ == (PhyCtrlSpd100 | PhyCtrlDux))
+ cmd->advertising |= ADVERTISED_100baseT_Full;
+
+ if (phy_ctrl & PhyCtrlAne)
+ cmd->advertising |= ADVERTISED_Autoneg;
+
+ ethtool_cmd_speed_set(cmd,
+ (output_status & 0x2) ? SPEED_100 : SPEED_10);
+ cmd->duplex = (output_status & 0x4) ? DUPLEX_FULL : DUPLEX_HALF;
+ cmd->port = PORT_MII;
+ cmd->phy_address = phy_address;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->autoneg = (phy_ctrl & PhyCtrlAne) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+ return 0;
+}
+
+static int sc92031_ethtool_set_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 speed = ethtool_cmd_speed(cmd);
+ u32 phy_ctrl;
+ u32 old_phy_ctrl;
+
+ if (!(speed == SPEED_10 || speed == SPEED_100))
+ return -EINVAL;
+ if (!(cmd->duplex == DUPLEX_HALF || cmd->duplex == DUPLEX_FULL))
+ return -EINVAL;
+ if (!(cmd->port == PORT_MII))
+ return -EINVAL;
+ if (!(cmd->phy_address == 0x1f))
+ return -EINVAL;
+ if (!(cmd->transceiver == XCVR_INTERNAL))
+ return -EINVAL;
+ if (!(cmd->autoneg == AUTONEG_DISABLE || cmd->autoneg == AUTONEG_ENABLE))
+ return -EINVAL;
+
+ if (cmd->autoneg == AUTONEG_ENABLE) {
+ if (!(cmd->advertising & (ADVERTISED_Autoneg
+ | ADVERTISED_100baseT_Full
+ | ADVERTISED_100baseT_Half
+ | ADVERTISED_10baseT_Full
+ | ADVERTISED_10baseT_Half)))
+ return -EINVAL;
+
+ phy_ctrl = PhyCtrlAne;
+
+ // FIXME: I'm not sure what the original code was trying to do
+ if (cmd->advertising & ADVERTISED_Autoneg)
+ phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
+ if (cmd->advertising & ADVERTISED_100baseT_Full)
+ phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
+ if (cmd->advertising & ADVERTISED_100baseT_Half)
+ phy_ctrl |= PhyCtrlSpd100;
+ if (cmd->advertising & ADVERTISED_10baseT_Full)
+ phy_ctrl |= PhyCtrlSpd10 | PhyCtrlDux;
+ if (cmd->advertising & ADVERTISED_10baseT_Half)
+ phy_ctrl |= PhyCtrlSpd10;
+ } else {
+ // FIXME: Whole branch guessed
+ phy_ctrl = 0;
+
+ if (speed == SPEED_10)
+ phy_ctrl |= PhyCtrlSpd10;
+ else /* cmd->speed == SPEED_100 */
+ phy_ctrl |= PhyCtrlSpd100;
+
+ if (cmd->duplex == DUPLEX_FULL)
+ phy_ctrl |= PhyCtrlDux;
+ }
+
+ spin_lock_bh(&priv->lock);
+
+ old_phy_ctrl = ioread32(port_base + PhyCtrl);
+ phy_ctrl |= old_phy_ctrl & ~(PhyCtrlAne | PhyCtrlDux
+ | PhyCtrlSpd100 | PhyCtrlSpd10);
+ if (phy_ctrl != old_phy_ctrl)
+ iowrite32(phy_ctrl, port_base + PhyCtrl);
+
+ spin_unlock_bh(&priv->lock);
+
+ return 0;
+}
+
+static void sc92031_ethtool_get_wol(struct net_device *dev,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 pm_config;
+
+ spin_lock_bh(&priv->lock);
+ pm_config = ioread32(port_base + PMConfig);
+ spin_unlock_bh(&priv->lock);
+
+ // FIXME: Guessed
+ wolinfo->supported = WAKE_PHY | WAKE_MAGIC
+ | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
+ wolinfo->wolopts = 0;
+
+ if (pm_config & PM_LinkUp)
+ wolinfo->wolopts |= WAKE_PHY;
+
+ if (pm_config & PM_Magic)
+ wolinfo->wolopts |= WAKE_MAGIC;
+
+ if (pm_config & PM_WakeUp)
+ // FIXME: Guessed
+ wolinfo->wolopts |= WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
+}
+
+static int sc92031_ethtool_set_wol(struct net_device *dev,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u32 pm_config;
+
+ spin_lock_bh(&priv->lock);
+
+ pm_config = ioread32(port_base + PMConfig)
+ & ~(PM_LinkUp | PM_Magic | PM_WakeUp);
+
+ if (wolinfo->wolopts & WAKE_PHY)
+ pm_config |= PM_LinkUp;
+
+ if (wolinfo->wolopts & WAKE_MAGIC)
+ pm_config |= PM_Magic;
+
+ // FIXME: Guessed
+ if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
+ pm_config |= PM_WakeUp;
+
+ priv->pm_config = pm_config;
+ iowrite32(pm_config, port_base + PMConfig);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+
+ return 0;
+}
+
+static int sc92031_ethtool_nway_reset(struct net_device *dev)
+{
+ int err = 0;
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem *port_base = priv->port_base;
+ u16 bmcr;
+
+ spin_lock_bh(&priv->lock);
+
+ bmcr = _sc92031_mii_read(port_base, MII_BMCR);
+ if (!(bmcr & BMCR_ANENABLE)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ _sc92031_mii_write(port_base, MII_BMCR, bmcr | BMCR_ANRESTART);
+
+out:
+ _sc92031_mii_scan(port_base);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+
+ return err;
+}
+
+static const char sc92031_ethtool_stats_strings[SILAN_STATS_NUM][ETH_GSTRING_LEN] = {
+ "tx_timeout",
+ "rx_loss",
+};
+
+static void sc92031_ethtool_get_strings(struct net_device *dev,
+ u32 stringset, u8 *data)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(data, sc92031_ethtool_stats_strings,
+ SILAN_STATS_NUM * ETH_GSTRING_LEN);
+}
+
+static int sc92031_ethtool_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return SILAN_STATS_NUM;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void sc92031_ethtool_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ spin_lock_bh(&priv->lock);
+ data[0] = priv->tx_timeouts;
+ data[1] = priv->rx_loss;
+ spin_unlock_bh(&priv->lock);
+}
+
+static const struct ethtool_ops sc92031_ethtool_ops = {
+ .get_settings = sc92031_ethtool_get_settings,
+ .set_settings = sc92031_ethtool_set_settings,
+ .get_wol = sc92031_ethtool_get_wol,
+ .set_wol = sc92031_ethtool_set_wol,
+ .nway_reset = sc92031_ethtool_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_strings = sc92031_ethtool_get_strings,
+ .get_sset_count = sc92031_ethtool_get_sset_count,
+ .get_ethtool_stats = sc92031_ethtool_get_ethtool_stats,
+};
+
+
+static const struct net_device_ops sc92031_netdev_ops = {
+ .ndo_get_stats = sc92031_get_stats,
+ .ndo_start_xmit = sc92031_start_xmit,
+ .ndo_open = sc92031_open,
+ .ndo_stop = sc92031_stop,
+ .ndo_set_multicast_list = sc92031_set_multicast_list,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_tx_timeout = sc92031_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = sc92031_poll_controller,
+#endif
+};
+
+static int __devinit sc92031_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ int err;
+ void __iomem* port_base;
+ struct net_device *dev;
+ struct sc92031_priv *priv;
+ u32 mac0, mac1;
+ unsigned long base_addr;
+
+ err = pci_enable_device(pdev);
+ if (unlikely(err < 0))
+ goto out_enable_device;
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (unlikely(err < 0))
+ goto out_set_dma_mask;
+
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (unlikely(err < 0))
+ goto out_set_dma_mask;
+
+ err = pci_request_regions(pdev, SC92031_NAME);
+ if (unlikely(err < 0))
+ goto out_request_regions;
+
+ port_base = pci_iomap(pdev, SC92031_USE_BAR, 0);
+ if (unlikely(!port_base)) {
+ err = -EIO;
+ goto out_iomap;
+ }
+
+ dev = alloc_etherdev(sizeof(struct sc92031_priv));
+ if (unlikely(!dev)) {
+ err = -ENOMEM;
+ goto out_alloc_etherdev;
+ }
+
+ pci_set_drvdata(pdev, dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+#if SC92031_USE_BAR == 0
+ dev->mem_start = pci_resource_start(pdev, SC92031_USE_BAR);
+ dev->mem_end = pci_resource_end(pdev, SC92031_USE_BAR);
+#elif SC92031_USE_BAR == 1
+ dev->base_addr = pci_resource_start(pdev, SC92031_USE_BAR);
+#endif
+ dev->irq = pdev->irq;
+
+ /* faked with skb_copy_and_csum_dev */
+ dev->features = NETIF_F_SG | NETIF_F_HIGHDMA |
+ NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+
+ dev->netdev_ops = &sc92031_netdev_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+ dev->ethtool_ops = &sc92031_ethtool_ops;
+
+ priv = netdev_priv(dev);
+ spin_lock_init(&priv->lock);
+ priv->port_base = port_base;
+ priv->pdev = pdev;
+ tasklet_init(&priv->tasklet, sc92031_tasklet, (unsigned long)dev);
+ /* Fudge tasklet count so the call to sc92031_enable_interrupts at
+ * sc92031_open will work correctly */
+ tasklet_disable_nosync(&priv->tasklet);
+
+ /* PCI PM Wakeup */
+ iowrite32((~PM_LongWF & ~PM_LWPTN) | PM_Enable, port_base + PMConfig);
+
+ mac0 = ioread32(port_base + MAC0);
+ mac1 = ioread32(port_base + MAC0 + 4);
+ dev->dev_addr[0] = dev->perm_addr[0] = mac0 >> 24;
+ dev->dev_addr[1] = dev->perm_addr[1] = mac0 >> 16;
+ dev->dev_addr[2] = dev->perm_addr[2] = mac0 >> 8;
+ dev->dev_addr[3] = dev->perm_addr[3] = mac0;
+ dev->dev_addr[4] = dev->perm_addr[4] = mac1 >> 8;
+ dev->dev_addr[5] = dev->perm_addr[5] = mac1;
+
+ err = register_netdev(dev);
+ if (err < 0)
+ goto out_register_netdev;
+
+#if SC92031_USE_BAR == 0
+ base_addr = dev->mem_start;
+#elif SC92031_USE_BAR == 1
+ base_addr = dev->base_addr;
+#endif
+ printk(KERN_INFO "%s: SC92031 at 0x%lx, %pM, IRQ %d\n", dev->name,
+ base_addr, dev->dev_addr, dev->irq);
+
+ return 0;
+
+out_register_netdev:
+ free_netdev(dev);
+out_alloc_etherdev:
+ pci_iounmap(pdev, port_base);
+out_iomap:
+ pci_release_regions(pdev);
+out_request_regions:
+out_set_dma_mask:
+ pci_disable_device(pdev);
+out_enable_device:
+ return err;
+}
+
+static void __devexit sc92031_remove(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct sc92031_priv *priv = netdev_priv(dev);
+ void __iomem* port_base = priv->port_base;
+
+ unregister_netdev(dev);
+ free_netdev(dev);
+ pci_iounmap(pdev, port_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+static int sc92031_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ pci_save_state(pdev);
+
+ if (!netif_running(dev))
+ goto out;
+
+ netif_device_detach(dev);
+
+ /* Disable interrupts, stop Tx and Rx. */
+ sc92031_disable_interrupts(dev);
+
+ spin_lock_bh(&priv->lock);
+
+ _sc92031_disable_tx_rx(dev);
+ _sc92031_tx_clear(dev);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+
+out:
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int sc92031_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct sc92031_priv *priv = netdev_priv(dev);
+
+ pci_restore_state(pdev);
+ pci_set_power_state(pdev, PCI_D0);
+
+ if (!netif_running(dev))
+ goto out;
+
+ /* Interrupts already disabled by sc92031_suspend */
+ spin_lock_bh(&priv->lock);
+
+ _sc92031_reset(dev);
+ mmiowb();
+
+ spin_unlock_bh(&priv->lock);
+ sc92031_enable_interrupts(dev);
+
+ netif_device_attach(dev);
+
+ if (netif_carrier_ok(dev))
+ netif_wake_queue(dev);
+ else
+ netif_tx_disable(dev);
+
+out:
+ return 0;
+}
+
+static DEFINE_PCI_DEVICE_TABLE(sc92031_pci_device_id_table) = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) },
+ { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) },
+ { PCI_DEVICE(0x1088, 0x2031) },
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table);
+
+static struct pci_driver sc92031_pci_driver = {
+ .name = SC92031_NAME,
+ .id_table = sc92031_pci_device_id_table,
+ .probe = sc92031_probe,
+ .remove = __devexit_p(sc92031_remove),
+ .suspend = sc92031_suspend,
+ .resume = sc92031_resume,
+};
+
+static int __init sc92031_init(void)
+{
+ return pci_register_driver(&sc92031_pci_driver);
+}
+
+static void __exit sc92031_exit(void)
+{
+ pci_unregister_driver(&sc92031_pci_driver);
+}
+
+module_init(sc92031_init);
+module_exit(sc92031_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>");
+MODULE_DESCRIPTION("Silan SC92031 PCI Fast Ethernet Adapter driver");
+++ /dev/null
-/*
- * r8169.c: RealTek 8169/8168/8101 ethernet driver.
- *
- * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
- * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
- * Copyright (c) a lot of people too. Please respect their work.
- *
- * See MAINTAINERS file for support contact information.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
-#include <linux/pm_runtime.h>
-#include <linux/firmware.h>
-#include <linux/pci-aspm.h>
-#include <linux/prefetch.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#define RTL8169_VERSION "2.3LK-NAPI"
-#define MODULENAME "r8169"
-#define PFX MODULENAME ": "
-
-#define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
-#define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
-#define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
-#define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
-#define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
-#define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
-
-#ifdef RTL8169_DEBUG
-#define assert(expr) \
- if (!(expr)) { \
- printk( "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__func__,__LINE__); \
- }
-#define dprintk(fmt, args...) \
- do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
-#else
-#define assert(expr) do {} while (0)
-#define dprintk(fmt, args...) do {} while (0)
-#endif /* RTL8169_DEBUG */
-
-#define R8169_MSG_DEFAULT \
- (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
-
-#define TX_BUFFS_AVAIL(tp) \
- (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
-
-/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static const int multicast_filter_limit = 32;
-
-/* MAC address length */
-#define MAC_ADDR_LEN 6
-
-#define MAX_READ_REQUEST_SHIFT 12
-#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
-#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
-#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
-
-#define R8169_REGS_SIZE 256
-#define R8169_NAPI_WEIGHT 64
-#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
-#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
-#define RX_BUF_SIZE 1536 /* Rx Buffer size */
-#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
-#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
-
-#define RTL8169_TX_TIMEOUT (6*HZ)
-#define RTL8169_PHY_TIMEOUT (10*HZ)
-
-#define RTL_EEPROM_SIG cpu_to_le32(0x8129)
-#define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
-#define RTL_EEPROM_SIG_ADDR 0x0000
-
-/* write/read MMIO register */
-#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
-#define RTL_R8(reg) readb (ioaddr + (reg))
-#define RTL_R16(reg) readw (ioaddr + (reg))
-#define RTL_R32(reg) readl (ioaddr + (reg))
-
-enum mac_version {
- RTL_GIGA_MAC_VER_01 = 0,
- RTL_GIGA_MAC_VER_02,
- RTL_GIGA_MAC_VER_03,
- RTL_GIGA_MAC_VER_04,
- RTL_GIGA_MAC_VER_05,
- RTL_GIGA_MAC_VER_06,
- RTL_GIGA_MAC_VER_07,
- RTL_GIGA_MAC_VER_08,
- RTL_GIGA_MAC_VER_09,
- RTL_GIGA_MAC_VER_10,
- RTL_GIGA_MAC_VER_11,
- RTL_GIGA_MAC_VER_12,
- RTL_GIGA_MAC_VER_13,
- RTL_GIGA_MAC_VER_14,
- RTL_GIGA_MAC_VER_15,
- RTL_GIGA_MAC_VER_16,
- RTL_GIGA_MAC_VER_17,
- RTL_GIGA_MAC_VER_18,
- RTL_GIGA_MAC_VER_19,
- RTL_GIGA_MAC_VER_20,
- RTL_GIGA_MAC_VER_21,
- RTL_GIGA_MAC_VER_22,
- RTL_GIGA_MAC_VER_23,
- RTL_GIGA_MAC_VER_24,
- RTL_GIGA_MAC_VER_25,
- RTL_GIGA_MAC_VER_26,
- RTL_GIGA_MAC_VER_27,
- RTL_GIGA_MAC_VER_28,
- RTL_GIGA_MAC_VER_29,
- RTL_GIGA_MAC_VER_30,
- RTL_GIGA_MAC_VER_31,
- RTL_GIGA_MAC_VER_32,
- RTL_GIGA_MAC_VER_33,
- RTL_GIGA_MAC_VER_34,
- RTL_GIGA_MAC_NONE = 0xff,
-};
-
-enum rtl_tx_desc_version {
- RTL_TD_0 = 0,
- RTL_TD_1 = 1,
-};
-
-#define _R(NAME,TD,FW) \
- { .name = NAME, .txd_version = TD, .fw_name = FW }
-
-static const struct {
- const char *name;
- enum rtl_tx_desc_version txd_version;
- const char *fw_name;
-} rtl_chip_infos[] = {
- /* PCI devices. */
- [RTL_GIGA_MAC_VER_01] =
- _R("RTL8169", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_02] =
- _R("RTL8169s", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_03] =
- _R("RTL8110s", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_04] =
- _R("RTL8169sb/8110sb", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_05] =
- _R("RTL8169sc/8110sc", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_06] =
- _R("RTL8169sc/8110sc", RTL_TD_0, NULL),
- /* PCI-E devices. */
- [RTL_GIGA_MAC_VER_07] =
- _R("RTL8102e", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_08] =
- _R("RTL8102e", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_09] =
- _R("RTL8102e", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_10] =
- _R("RTL8101e", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_11] =
- _R("RTL8168b/8111b", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_12] =
- _R("RTL8168b/8111b", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_13] =
- _R("RTL8101e", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_14] =
- _R("RTL8100e", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_15] =
- _R("RTL8100e", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_16] =
- _R("RTL8101e", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_17] =
- _R("RTL8168b/8111b", RTL_TD_0, NULL),
- [RTL_GIGA_MAC_VER_18] =
- _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_19] =
- _R("RTL8168c/8111c", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_20] =
- _R("RTL8168c/8111c", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_21] =
- _R("RTL8168c/8111c", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_22] =
- _R("RTL8168c/8111c", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_23] =
- _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_24] =
- _R("RTL8168cp/8111cp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_25] =
- _R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1),
- [RTL_GIGA_MAC_VER_26] =
- _R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2),
- [RTL_GIGA_MAC_VER_27] =
- _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_28] =
- _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_29] =
- _R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
- [RTL_GIGA_MAC_VER_30] =
- _R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
- [RTL_GIGA_MAC_VER_31] =
- _R("RTL8168dp/8111dp", RTL_TD_1, NULL),
- [RTL_GIGA_MAC_VER_32] =
- _R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1),
- [RTL_GIGA_MAC_VER_33] =
- _R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2),
- [RTL_GIGA_MAC_VER_34] =
- _R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3)
-};
-#undef _R
-
-enum cfg_version {
- RTL_CFG_0 = 0x00,
- RTL_CFG_1,
- RTL_CFG_2
-};
-
-static void rtl_hw_start_8169(struct net_device *);
-static void rtl_hw_start_8168(struct net_device *);
-static void rtl_hw_start_8101(struct net_device *);
-
-static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
- { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
- { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
- { PCI_VENDOR_ID_LINKSYS, 0x1032,
- PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
- { 0x0001, 0x8168,
- PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
- {0,},
-};
-
-MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
-
-static int rx_buf_sz = 16383;
-static int use_dac;
-static struct {
- u32 msg_enable;
-} debug = { -1 };
-
-enum rtl_registers {
- MAC0 = 0, /* Ethernet hardware address. */
- MAC4 = 4,
- MAR0 = 8, /* Multicast filter. */
- CounterAddrLow = 0x10,
- CounterAddrHigh = 0x14,
- TxDescStartAddrLow = 0x20,
- TxDescStartAddrHigh = 0x24,
- TxHDescStartAddrLow = 0x28,
- TxHDescStartAddrHigh = 0x2c,
- FLASH = 0x30,
- ERSR = 0x36,
- ChipCmd = 0x37,
- TxPoll = 0x38,
- IntrMask = 0x3c,
- IntrStatus = 0x3e,
-
- TxConfig = 0x40,
-#define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
-#define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
-
- RxConfig = 0x44,
-#define RX128_INT_EN (1 << 15) /* 8111c and later */
-#define RX_MULTI_EN (1 << 14) /* 8111c only */
-#define RXCFG_FIFO_SHIFT 13
- /* No threshold before first PCI xfer */
-#define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
-#define RXCFG_DMA_SHIFT 8
- /* Unlimited maximum PCI burst. */
-#define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
-
- RxMissed = 0x4c,
- Cfg9346 = 0x50,
- Config0 = 0x51,
- Config1 = 0x52,
- Config2 = 0x53,
- Config3 = 0x54,
- Config4 = 0x55,
- Config5 = 0x56,
- MultiIntr = 0x5c,
- PHYAR = 0x60,
- PHYstatus = 0x6c,
- RxMaxSize = 0xda,
- CPlusCmd = 0xe0,
- IntrMitigate = 0xe2,
- RxDescAddrLow = 0xe4,
- RxDescAddrHigh = 0xe8,
- EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
-
-#define NoEarlyTx 0x3f /* Max value : no early transmit. */
-
- MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
-
-#define TxPacketMax (8064 >> 7)
-
- FuncEvent = 0xf0,
- FuncEventMask = 0xf4,
- FuncPresetState = 0xf8,
- FuncForceEvent = 0xfc,
-};
-
-enum rtl8110_registers {
- TBICSR = 0x64,
- TBI_ANAR = 0x68,
- TBI_LPAR = 0x6a,
-};
-
-enum rtl8168_8101_registers {
- CSIDR = 0x64,
- CSIAR = 0x68,
-#define CSIAR_FLAG 0x80000000
-#define CSIAR_WRITE_CMD 0x80000000
-#define CSIAR_BYTE_ENABLE 0x0f
-#define CSIAR_BYTE_ENABLE_SHIFT 12
-#define CSIAR_ADDR_MASK 0x0fff
- PMCH = 0x6f,
- EPHYAR = 0x80,
-#define EPHYAR_FLAG 0x80000000
-#define EPHYAR_WRITE_CMD 0x80000000
-#define EPHYAR_REG_MASK 0x1f
-#define EPHYAR_REG_SHIFT 16
-#define EPHYAR_DATA_MASK 0xffff
- DLLPR = 0xd0,
-#define PFM_EN (1 << 6)
- DBG_REG = 0xd1,
-#define FIX_NAK_1 (1 << 4)
-#define FIX_NAK_2 (1 << 3)
- TWSI = 0xd2,
- MCU = 0xd3,
-#define NOW_IS_OOB (1 << 7)
-#define EN_NDP (1 << 3)
-#define EN_OOB_RESET (1 << 2)
- EFUSEAR = 0xdc,
-#define EFUSEAR_FLAG 0x80000000
-#define EFUSEAR_WRITE_CMD 0x80000000
-#define EFUSEAR_READ_CMD 0x00000000
-#define EFUSEAR_REG_MASK 0x03ff
-#define EFUSEAR_REG_SHIFT 8
-#define EFUSEAR_DATA_MASK 0xff
-};
-
-enum rtl8168_registers {
- LED_FREQ = 0x1a,
- EEE_LED = 0x1b,
- ERIDR = 0x70,
- ERIAR = 0x74,
-#define ERIAR_FLAG 0x80000000
-#define ERIAR_WRITE_CMD 0x80000000
-#define ERIAR_READ_CMD 0x00000000
-#define ERIAR_ADDR_BYTE_ALIGN 4
-#define ERIAR_TYPE_SHIFT 16
-#define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
-#define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
-#define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
-#define ERIAR_MASK_SHIFT 12
-#define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
-#define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
-#define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
- EPHY_RXER_NUM = 0x7c,
- OCPDR = 0xb0, /* OCP GPHY access */
-#define OCPDR_WRITE_CMD 0x80000000
-#define OCPDR_READ_CMD 0x00000000
-#define OCPDR_REG_MASK 0x7f
-#define OCPDR_GPHY_REG_SHIFT 16
-#define OCPDR_DATA_MASK 0xffff
- OCPAR = 0xb4,
-#define OCPAR_FLAG 0x80000000
-#define OCPAR_GPHY_WRITE_CMD 0x8000f060
-#define OCPAR_GPHY_READ_CMD 0x0000f060
- RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
- MISC = 0xf0, /* 8168e only. */
-#define TXPLA_RST (1 << 29)
-#define PWM_EN (1 << 22)
-};
-
-enum rtl_register_content {
- /* InterruptStatusBits */
- SYSErr = 0x8000,
- PCSTimeout = 0x4000,
- SWInt = 0x0100,
- TxDescUnavail = 0x0080,
- RxFIFOOver = 0x0040,
- LinkChg = 0x0020,
- RxOverflow = 0x0010,
- TxErr = 0x0008,
- TxOK = 0x0004,
- RxErr = 0x0002,
- RxOK = 0x0001,
-
- /* RxStatusDesc */
- RxFOVF = (1 << 23),
- RxRWT = (1 << 22),
- RxRES = (1 << 21),
- RxRUNT = (1 << 20),
- RxCRC = (1 << 19),
-
- /* ChipCmdBits */
- StopReq = 0x80,
- CmdReset = 0x10,
- CmdRxEnb = 0x08,
- CmdTxEnb = 0x04,
- RxBufEmpty = 0x01,
-
- /* TXPoll register p.5 */
- HPQ = 0x80, /* Poll cmd on the high prio queue */
- NPQ = 0x40, /* Poll cmd on the low prio queue */
- FSWInt = 0x01, /* Forced software interrupt */
-
- /* Cfg9346Bits */
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xc0,
-
- /* rx_mode_bits */
- AcceptErr = 0x20,
- AcceptRunt = 0x10,
- AcceptBroadcast = 0x08,
- AcceptMulticast = 0x04,
- AcceptMyPhys = 0x02,
- AcceptAllPhys = 0x01,
-#define RX_CONFIG_ACCEPT_MASK 0x3f
-
- /* TxConfigBits */
- TxInterFrameGapShift = 24,
- TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
-
- /* Config1 register p.24 */
- LEDS1 = (1 << 7),
- LEDS0 = (1 << 6),
- MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
- Speed_down = (1 << 4),
- MEMMAP = (1 << 3),
- IOMAP = (1 << 2),
- VPD = (1 << 1),
- PMEnable = (1 << 0), /* Power Management Enable */
-
- /* Config2 register p. 25 */
- PCI_Clock_66MHz = 0x01,
- PCI_Clock_33MHz = 0x00,
-
- /* Config3 register p.25 */
- MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
- LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
- Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
-
- /* Config5 register p.27 */
- BWF = (1 << 6), /* Accept Broadcast wakeup frame */
- MWF = (1 << 5), /* Accept Multicast wakeup frame */
- UWF = (1 << 4), /* Accept Unicast wakeup frame */
- Spi_en = (1 << 3),
- LanWake = (1 << 1), /* LanWake enable/disable */
- PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
-
- /* TBICSR p.28 */
- TBIReset = 0x80000000,
- TBILoopback = 0x40000000,
- TBINwEnable = 0x20000000,
- TBINwRestart = 0x10000000,
- TBILinkOk = 0x02000000,
- TBINwComplete = 0x01000000,
-
- /* CPlusCmd p.31 */
- EnableBist = (1 << 15), // 8168 8101
- Mac_dbgo_oe = (1 << 14), // 8168 8101
- Normal_mode = (1 << 13), // unused
- Force_half_dup = (1 << 12), // 8168 8101
- Force_rxflow_en = (1 << 11), // 8168 8101
- Force_txflow_en = (1 << 10), // 8168 8101
- Cxpl_dbg_sel = (1 << 9), // 8168 8101
- ASF = (1 << 8), // 8168 8101
- PktCntrDisable = (1 << 7), // 8168 8101
- Mac_dbgo_sel = 0x001c, // 8168
- RxVlan = (1 << 6),
- RxChkSum = (1 << 5),
- PCIDAC = (1 << 4),
- PCIMulRW = (1 << 3),
- INTT_0 = 0x0000, // 8168
- INTT_1 = 0x0001, // 8168
- INTT_2 = 0x0002, // 8168
- INTT_3 = 0x0003, // 8168
-
- /* rtl8169_PHYstatus */
- TBI_Enable = 0x80,
- TxFlowCtrl = 0x40,
- RxFlowCtrl = 0x20,
- _1000bpsF = 0x10,
- _100bps = 0x08,
- _10bps = 0x04,
- LinkStatus = 0x02,
- FullDup = 0x01,
-
- /* _TBICSRBit */
- TBILinkOK = 0x02000000,
-
- /* DumpCounterCommand */
- CounterDump = 0x8,
-};
-
-enum rtl_desc_bit {
- /* First doubleword. */
- DescOwn = (1 << 31), /* Descriptor is owned by NIC */
- RingEnd = (1 << 30), /* End of descriptor ring */
- FirstFrag = (1 << 29), /* First segment of a packet */
- LastFrag = (1 << 28), /* Final segment of a packet */
-};
-
-/* Generic case. */
-enum rtl_tx_desc_bit {
- /* First doubleword. */
- TD_LSO = (1 << 27), /* Large Send Offload */
-#define TD_MSS_MAX 0x07ffu /* MSS value */
-
- /* Second doubleword. */
- TxVlanTag = (1 << 17), /* Add VLAN tag */
-};
-
-/* 8169, 8168b and 810x except 8102e. */
-enum rtl_tx_desc_bit_0 {
- /* First doubleword. */
-#define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
- TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
- TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
- TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
-};
-
-/* 8102e, 8168c and beyond. */
-enum rtl_tx_desc_bit_1 {
- /* Second doubleword. */
-#define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
- TD1_IP_CS = (1 << 29), /* Calculate IP checksum */
- TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
- TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
-};
-
-static const struct rtl_tx_desc_info {
- struct {
- u32 udp;
- u32 tcp;
- } checksum;
- u16 mss_shift;
- u16 opts_offset;
-} tx_desc_info [] = {
- [RTL_TD_0] = {
- .checksum = {
- .udp = TD0_IP_CS | TD0_UDP_CS,
- .tcp = TD0_IP_CS | TD0_TCP_CS
- },
- .mss_shift = TD0_MSS_SHIFT,
- .opts_offset = 0
- },
- [RTL_TD_1] = {
- .checksum = {
- .udp = TD1_IP_CS | TD1_UDP_CS,
- .tcp = TD1_IP_CS | TD1_TCP_CS
- },
- .mss_shift = TD1_MSS_SHIFT,
- .opts_offset = 1
- }
-};
-
-enum rtl_rx_desc_bit {
- /* Rx private */
- PID1 = (1 << 18), /* Protocol ID bit 1/2 */
- PID0 = (1 << 17), /* Protocol ID bit 2/2 */
-
-#define RxProtoUDP (PID1)
-#define RxProtoTCP (PID0)
-#define RxProtoIP (PID1 | PID0)
-#define RxProtoMask RxProtoIP
-
- IPFail = (1 << 16), /* IP checksum failed */
- UDPFail = (1 << 15), /* UDP/IP checksum failed */
- TCPFail = (1 << 14), /* TCP/IP checksum failed */
- RxVlanTag = (1 << 16), /* VLAN tag available */
-};
-
-#define RsvdMask 0x3fffc000
-
-struct TxDesc {
- __le32 opts1;
- __le32 opts2;
- __le64 addr;
-};
-
-struct RxDesc {
- __le32 opts1;
- __le32 opts2;
- __le64 addr;
-};
-
-struct ring_info {
- struct sk_buff *skb;
- u32 len;
- u8 __pad[sizeof(void *) - sizeof(u32)];
-};
-
-enum features {
- RTL_FEATURE_WOL = (1 << 0),
- RTL_FEATURE_MSI = (1 << 1),
- RTL_FEATURE_GMII = (1 << 2),
-};
-
-struct rtl8169_counters {
- __le64 tx_packets;
- __le64 rx_packets;
- __le64 tx_errors;
- __le32 rx_errors;
- __le16 rx_missed;
- __le16 align_errors;
- __le32 tx_one_collision;
- __le32 tx_multi_collision;
- __le64 rx_unicast;
- __le64 rx_broadcast;
- __le32 rx_multicast;
- __le16 tx_aborted;
- __le16 tx_underun;
-};
-
-struct rtl8169_private {
- void __iomem *mmio_addr; /* memory map physical address */
- struct pci_dev *pci_dev;
- struct net_device *dev;
- struct napi_struct napi;
- spinlock_t lock;
- u32 msg_enable;
- u16 txd_version;
- u16 mac_version;
- u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
- u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
- u32 dirty_rx;
- u32 dirty_tx;
- struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
- struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
- dma_addr_t TxPhyAddr;
- dma_addr_t RxPhyAddr;
- void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
- struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
- struct timer_list timer;
- u16 cp_cmd;
- u16 intr_event;
- u16 napi_event;
- u16 intr_mask;
-
- struct mdio_ops {
- void (*write)(void __iomem *, int, int);
- int (*read)(void __iomem *, int);
- } mdio_ops;
-
- struct pll_power_ops {
- void (*down)(struct rtl8169_private *);
- void (*up)(struct rtl8169_private *);
- } pll_power_ops;
-
- int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
- int (*get_settings)(struct net_device *, struct ethtool_cmd *);
- void (*phy_reset_enable)(struct rtl8169_private *tp);
- void (*hw_start)(struct net_device *);
- unsigned int (*phy_reset_pending)(struct rtl8169_private *tp);
- unsigned int (*link_ok)(void __iomem *);
- int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
- struct delayed_work task;
- unsigned features;
-
- struct mii_if_info mii;
- struct rtl8169_counters counters;
- u32 saved_wolopts;
-
- struct rtl_fw {
- const struct firmware *fw;
-
-#define RTL_VER_SIZE 32
-
- char version[RTL_VER_SIZE];
-
- struct rtl_fw_phy_action {
- __le32 *code;
- size_t size;
- } phy_action;
- } *rtl_fw;
-#define RTL_FIRMWARE_UNKNOWN ERR_PTR(-EAGAIN)
-};
-
-MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
-MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
-module_param(use_dac, int, 0);
-MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
-module_param_named(debug, debug.msg_enable, int, 0);
-MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(RTL8169_VERSION);
-MODULE_FIRMWARE(FIRMWARE_8168D_1);
-MODULE_FIRMWARE(FIRMWARE_8168D_2);
-MODULE_FIRMWARE(FIRMWARE_8168E_1);
-MODULE_FIRMWARE(FIRMWARE_8168E_2);
-MODULE_FIRMWARE(FIRMWARE_8105E_1);
-
-static int rtl8169_open(struct net_device *dev);
-static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
-static int rtl8169_init_ring(struct net_device *dev);
-static void rtl_hw_start(struct net_device *dev);
-static int rtl8169_close(struct net_device *dev);
-static void rtl_set_rx_mode(struct net_device *dev);
-static void rtl8169_tx_timeout(struct net_device *dev);
-static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
-static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
- void __iomem *, u32 budget);
-static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
-static void rtl8169_down(struct net_device *dev);
-static void rtl8169_rx_clear(struct rtl8169_private *tp);
-static int rtl8169_poll(struct napi_struct *napi, int budget);
-
-static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- int i;
-
- RTL_W32(OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
- for (i = 0; i < 20; i++) {
- udelay(100);
- if (RTL_R32(OCPAR) & OCPAR_FLAG)
- break;
- }
- return RTL_R32(OCPDR);
-}
-
-static void ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg, u32 data)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- int i;
-
- RTL_W32(OCPDR, data);
- RTL_W32(OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
- for (i = 0; i < 20; i++) {
- udelay(100);
- if ((RTL_R32(OCPAR) & OCPAR_FLAG) == 0)
- break;
- }
-}
-
-static void rtl8168_oob_notify(struct rtl8169_private *tp, u8 cmd)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- int i;
-
- RTL_W8(ERIDR, cmd);
- RTL_W32(ERIAR, 0x800010e8);
- msleep(2);
- for (i = 0; i < 5; i++) {
- udelay(100);
- if (!(RTL_R32(ERIAR) & ERIAR_FLAG))
- break;
- }
-
- ocp_write(tp, 0x1, 0x30, 0x00000001);
-}
-
-#define OOB_CMD_RESET 0x00
-#define OOB_CMD_DRIVER_START 0x05
-#define OOB_CMD_DRIVER_STOP 0x06
-
-static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
-{
- return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
-}
-
-static void rtl8168_driver_start(struct rtl8169_private *tp)
-{
- u16 reg;
- int i;
-
- rtl8168_oob_notify(tp, OOB_CMD_DRIVER_START);
-
- reg = rtl8168_get_ocp_reg(tp);
-
- for (i = 0; i < 10; i++) {
- msleep(10);
- if (ocp_read(tp, 0x0f, reg) & 0x00000800)
- break;
- }
-}
-
-static void rtl8168_driver_stop(struct rtl8169_private *tp)
-{
- u16 reg;
- int i;
-
- rtl8168_oob_notify(tp, OOB_CMD_DRIVER_STOP);
-
- reg = rtl8168_get_ocp_reg(tp);
-
- for (i = 0; i < 10; i++) {
- msleep(10);
- if ((ocp_read(tp, 0x0f, reg) & 0x00000800) == 0)
- break;
- }
-}
-
-static int r8168dp_check_dash(struct rtl8169_private *tp)
-{
- u16 reg = rtl8168_get_ocp_reg(tp);
-
- return (ocp_read(tp, 0x0f, reg) & 0x00008000) ? 1 : 0;
-}
-
-static void r8169_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
-{
- int i;
-
- RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
-
- for (i = 20; i > 0; i--) {
- /*
- * Check if the RTL8169 has completed writing to the specified
- * MII register.
- */
- if (!(RTL_R32(PHYAR) & 0x80000000))
- break;
- udelay(25);
- }
- /*
- * According to hardware specs a 20us delay is required after write
- * complete indication, but before sending next command.
- */
- udelay(20);
-}
-
-static int r8169_mdio_read(void __iomem *ioaddr, int reg_addr)
-{
- int i, value = -1;
-
- RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
-
- for (i = 20; i > 0; i--) {
- /*
- * Check if the RTL8169 has completed retrieving data from
- * the specified MII register.
- */
- if (RTL_R32(PHYAR) & 0x80000000) {
- value = RTL_R32(PHYAR) & 0xffff;
- break;
- }
- udelay(25);
- }
- /*
- * According to hardware specs a 20us delay is required after read
- * complete indication, but before sending next command.
- */
- udelay(20);
-
- return value;
-}
-
-static void r8168dp_1_mdio_access(void __iomem *ioaddr, int reg_addr, u32 data)
-{
- int i;
-
- RTL_W32(OCPDR, data |
- ((reg_addr & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
- RTL_W32(OCPAR, OCPAR_GPHY_WRITE_CMD);
- RTL_W32(EPHY_RXER_NUM, 0);
-
- for (i = 0; i < 100; i++) {
- mdelay(1);
- if (!(RTL_R32(OCPAR) & OCPAR_FLAG))
- break;
- }
-}
-
-static void r8168dp_1_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
-{
- r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_WRITE_CMD |
- (value & OCPDR_DATA_MASK));
-}
-
-static int r8168dp_1_mdio_read(void __iomem *ioaddr, int reg_addr)
-{
- int i;
-
- r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_READ_CMD);
-
- mdelay(1);
- RTL_W32(OCPAR, OCPAR_GPHY_READ_CMD);
- RTL_W32(EPHY_RXER_NUM, 0);
-
- for (i = 0; i < 100; i++) {
- mdelay(1);
- if (RTL_R32(OCPAR) & OCPAR_FLAG)
- break;
- }
-
- return RTL_R32(OCPDR) & OCPDR_DATA_MASK;
-}
-
-#define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
-
-static void r8168dp_2_mdio_start(void __iomem *ioaddr)
-{
- RTL_W32(0xd0, RTL_R32(0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
-}
-
-static void r8168dp_2_mdio_stop(void __iomem *ioaddr)
-{
- RTL_W32(0xd0, RTL_R32(0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
-}
-
-static void r8168dp_2_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
-{
- r8168dp_2_mdio_start(ioaddr);
-
- r8169_mdio_write(ioaddr, reg_addr, value);
-
- r8168dp_2_mdio_stop(ioaddr);
-}
-
-static int r8168dp_2_mdio_read(void __iomem *ioaddr, int reg_addr)
-{
- int value;
-
- r8168dp_2_mdio_start(ioaddr);
-
- value = r8169_mdio_read(ioaddr, reg_addr);
-
- r8168dp_2_mdio_stop(ioaddr);
-
- return value;
-}
-
-static void rtl_writephy(struct rtl8169_private *tp, int location, u32 val)
-{
- tp->mdio_ops.write(tp->mmio_addr, location, val);
-}
-
-static int rtl_readphy(struct rtl8169_private *tp, int location)
-{
- return tp->mdio_ops.read(tp->mmio_addr, location);
-}
-
-static void rtl_patchphy(struct rtl8169_private *tp, int reg_addr, int value)
-{
- rtl_writephy(tp, reg_addr, rtl_readphy(tp, reg_addr) | value);
-}
-
-static void rtl_w1w0_phy(struct rtl8169_private *tp, int reg_addr, int p, int m)
-{
- int val;
-
- val = rtl_readphy(tp, reg_addr);
- rtl_writephy(tp, reg_addr, (val | p) & ~m);
-}
-
-static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
- int val)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl_writephy(tp, location, val);
-}
-
-static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- return rtl_readphy(tp, location);
-}
-
-static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
-{
- unsigned int i;
-
- RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
- (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
-
- for (i = 0; i < 100; i++) {
- if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
- break;
- udelay(10);
- }
-}
-
-static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
-{
- u16 value = 0xffff;
- unsigned int i;
-
- RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
-
- for (i = 0; i < 100; i++) {
- if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
- value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
- break;
- }
- udelay(10);
- }
-
- return value;
-}
-
-static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
-{
- unsigned int i;
-
- RTL_W32(CSIDR, value);
- RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
- CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
-
- for (i = 0; i < 100; i++) {
- if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
- break;
- udelay(10);
- }
-}
-
-static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
-{
- u32 value = ~0x00;
- unsigned int i;
-
- RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
- CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
-
- for (i = 0; i < 100; i++) {
- if (RTL_R32(CSIAR) & CSIAR_FLAG) {
- value = RTL_R32(CSIDR);
- break;
- }
- udelay(10);
- }
-
- return value;
-}
-
-static
-void rtl_eri_write(void __iomem *ioaddr, int addr, u32 mask, u32 val, int type)
-{
- unsigned int i;
-
- BUG_ON((addr & 3) || (mask == 0));
- RTL_W32(ERIDR, val);
- RTL_W32(ERIAR, ERIAR_WRITE_CMD | type | mask | addr);
-
- for (i = 0; i < 100; i++) {
- if (!(RTL_R32(ERIAR) & ERIAR_FLAG))
- break;
- udelay(100);
- }
-}
-
-static u32 rtl_eri_read(void __iomem *ioaddr, int addr, int type)
-{
- u32 value = ~0x00;
- unsigned int i;
-
- RTL_W32(ERIAR, ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr);
-
- for (i = 0; i < 100; i++) {
- if (RTL_R32(ERIAR) & ERIAR_FLAG) {
- value = RTL_R32(ERIDR);
- break;
- }
- udelay(100);
- }
-
- return value;
-}
-
-static void
-rtl_w1w0_eri(void __iomem *ioaddr, int addr, u32 mask, u32 p, u32 m, int type)
-{
- u32 val;
-
- val = rtl_eri_read(ioaddr, addr, type);
- rtl_eri_write(ioaddr, addr, mask, (val & ~m) | p, type);
-}
-
-struct exgmac_reg {
- u16 addr;
- u16 mask;
- u32 val;
-};
-
-static void rtl_write_exgmac_batch(void __iomem *ioaddr,
- const struct exgmac_reg *r, int len)
-{
- while (len-- > 0) {
- rtl_eri_write(ioaddr, r->addr, r->mask, r->val, ERIAR_EXGMAC);
- r++;
- }
-}
-
-static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
-{
- u8 value = 0xff;
- unsigned int i;
-
- RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
-
- for (i = 0; i < 300; i++) {
- if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
- value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
- break;
- }
- udelay(100);
- }
-
- return value;
-}
-
-static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
-{
- RTL_W16(IntrMask, 0x0000);
-
- RTL_W16(IntrStatus, 0xffff);
-}
-
-static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- return RTL_R32(TBICSR) & TBIReset;
-}
-
-static unsigned int rtl8169_xmii_reset_pending(struct rtl8169_private *tp)
-{
- return rtl_readphy(tp, MII_BMCR) & BMCR_RESET;
-}
-
-static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
-{
- return RTL_R32(TBICSR) & TBILinkOk;
-}
-
-static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
-{
- return RTL_R8(PHYstatus) & LinkStatus;
-}
-
-static void rtl8169_tbi_reset_enable(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
-}
-
-static void rtl8169_xmii_reset_enable(struct rtl8169_private *tp)
-{
- unsigned int val;
-
- val = rtl_readphy(tp, MII_BMCR) | BMCR_RESET;
- rtl_writephy(tp, MII_BMCR, val & 0xffff);
-}
-
-static void rtl_link_chg_patch(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- struct net_device *dev = tp->dev;
-
- if (!netif_running(dev))
- return;
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
- if (RTL_R8(PHYstatus) & _1000bpsF) {
- rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
- 0x00000011, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
- 0x00000005, ERIAR_EXGMAC);
- } else if (RTL_R8(PHYstatus) & _100bps) {
- rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
- 0x0000001f, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
- 0x00000005, ERIAR_EXGMAC);
- } else {
- rtl_eri_write(ioaddr, 0x1bc, ERIAR_MASK_1111,
- 0x0000001f, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0x1dc, ERIAR_MASK_1111,
- 0x0000003f, ERIAR_EXGMAC);
- }
- /* Reset packet filter */
- rtl_w1w0_eri(ioaddr, 0xdc, ERIAR_MASK_0001, 0x00, 0x01,
- ERIAR_EXGMAC);
- rtl_w1w0_eri(ioaddr, 0xdc, ERIAR_MASK_0001, 0x01, 0x00,
- ERIAR_EXGMAC);
- }
-}
-
-static void __rtl8169_check_link_status(struct net_device *dev,
- struct rtl8169_private *tp,
- void __iomem *ioaddr, bool pm)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&tp->lock, flags);
- if (tp->link_ok(ioaddr)) {
- rtl_link_chg_patch(tp);
- /* This is to cancel a scheduled suspend if there's one. */
- if (pm)
- pm_request_resume(&tp->pci_dev->dev);
- netif_carrier_on(dev);
- if (net_ratelimit())
- netif_info(tp, ifup, dev, "link up\n");
- } else {
- netif_carrier_off(dev);
- netif_info(tp, ifdown, dev, "link down\n");
- if (pm)
- pm_schedule_suspend(&tp->pci_dev->dev, 100);
- }
- spin_unlock_irqrestore(&tp->lock, flags);
-}
-
-static void rtl8169_check_link_status(struct net_device *dev,
- struct rtl8169_private *tp,
- void __iomem *ioaddr)
-{
- __rtl8169_check_link_status(dev, tp, ioaddr, false);
-}
-
-#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
-
-static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- u8 options;
- u32 wolopts = 0;
-
- options = RTL_R8(Config1);
- if (!(options & PMEnable))
- return 0;
-
- options = RTL_R8(Config3);
- if (options & LinkUp)
- wolopts |= WAKE_PHY;
- if (options & MagicPacket)
- wolopts |= WAKE_MAGIC;
-
- options = RTL_R8(Config5);
- if (options & UWF)
- wolopts |= WAKE_UCAST;
- if (options & BWF)
- wolopts |= WAKE_BCAST;
- if (options & MWF)
- wolopts |= WAKE_MCAST;
-
- return wolopts;
-}
-
-static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- spin_lock_irq(&tp->lock);
-
- wol->supported = WAKE_ANY;
- wol->wolopts = __rtl8169_get_wol(tp);
-
- spin_unlock_irq(&tp->lock);
-}
-
-static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned int i;
- static const struct {
- u32 opt;
- u16 reg;
- u8 mask;
- } cfg[] = {
- { WAKE_ANY, Config1, PMEnable },
- { WAKE_PHY, Config3, LinkUp },
- { WAKE_MAGIC, Config3, MagicPacket },
- { WAKE_UCAST, Config5, UWF },
- { WAKE_BCAST, Config5, BWF },
- { WAKE_MCAST, Config5, MWF },
- { WAKE_ANY, Config5, LanWake }
- };
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
-
- for (i = 0; i < ARRAY_SIZE(cfg); i++) {
- u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
- if (wolopts & cfg[i].opt)
- options |= cfg[i].mask;
- RTL_W8(cfg[i].reg, options);
- }
-
- RTL_W8(Cfg9346, Cfg9346_Lock);
-}
-
-static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- spin_lock_irq(&tp->lock);
-
- if (wol->wolopts)
- tp->features |= RTL_FEATURE_WOL;
- else
- tp->features &= ~RTL_FEATURE_WOL;
- __rtl8169_set_wol(tp, wol->wolopts);
- spin_unlock_irq(&tp->lock);
-
- device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
-
- return 0;
-}
-
-static const char *rtl_lookup_firmware_name(struct rtl8169_private *tp)
-{
- return rtl_chip_infos[tp->mac_version].fw_name;
-}
-
-static void rtl8169_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct rtl_fw *rtl_fw = tp->rtl_fw;
-
- strcpy(info->driver, MODULENAME);
- strcpy(info->version, RTL8169_VERSION);
- strcpy(info->bus_info, pci_name(tp->pci_dev));
- BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
- strcpy(info->fw_version, IS_ERR_OR_NULL(rtl_fw) ? "N/A" :
- rtl_fw->version);
-}
-
-static int rtl8169_get_regs_len(struct net_device *dev)
-{
- return R8169_REGS_SIZE;
-}
-
-static int rtl8169_set_speed_tbi(struct net_device *dev,
- u8 autoneg, u16 speed, u8 duplex, u32 ignored)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- int ret = 0;
- u32 reg;
-
- reg = RTL_R32(TBICSR);
- if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
- (duplex == DUPLEX_FULL)) {
- RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
- } else if (autoneg == AUTONEG_ENABLE)
- RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
- else {
- netif_warn(tp, link, dev,
- "incorrect speed setting refused in TBI mode\n");
- ret = -EOPNOTSUPP;
- }
-
- return ret;
-}
-
-static int rtl8169_set_speed_xmii(struct net_device *dev,
- u8 autoneg, u16 speed, u8 duplex, u32 adv)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- int giga_ctrl, bmcr;
- int rc = -EINVAL;
-
- rtl_writephy(tp, 0x1f, 0x0000);
-
- if (autoneg == AUTONEG_ENABLE) {
- int auto_nego;
-
- auto_nego = rtl_readphy(tp, MII_ADVERTISE);
- auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
- ADVERTISE_100HALF | ADVERTISE_100FULL);
-
- if (adv & ADVERTISED_10baseT_Half)
- auto_nego |= ADVERTISE_10HALF;
- if (adv & ADVERTISED_10baseT_Full)
- auto_nego |= ADVERTISE_10FULL;
- if (adv & ADVERTISED_100baseT_Half)
- auto_nego |= ADVERTISE_100HALF;
- if (adv & ADVERTISED_100baseT_Full)
- auto_nego |= ADVERTISE_100FULL;
-
- auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
-
- giga_ctrl = rtl_readphy(tp, MII_CTRL1000);
- giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
-
- /* The 8100e/8101e/8102e do Fast Ethernet only. */
- if (tp->mii.supports_gmii) {
- if (adv & ADVERTISED_1000baseT_Half)
- giga_ctrl |= ADVERTISE_1000HALF;
- if (adv & ADVERTISED_1000baseT_Full)
- giga_ctrl |= ADVERTISE_1000FULL;
- } else if (adv & (ADVERTISED_1000baseT_Half |
- ADVERTISED_1000baseT_Full)) {
- netif_info(tp, link, dev,
- "PHY does not support 1000Mbps\n");
- goto out;
- }
-
- bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
-
- rtl_writephy(tp, MII_ADVERTISE, auto_nego);
- rtl_writephy(tp, MII_CTRL1000, giga_ctrl);
- } else {
- giga_ctrl = 0;
-
- if (speed == SPEED_10)
- bmcr = 0;
- else if (speed == SPEED_100)
- bmcr = BMCR_SPEED100;
- else
- goto out;
-
- if (duplex == DUPLEX_FULL)
- bmcr |= BMCR_FULLDPLX;
- }
-
- rtl_writephy(tp, MII_BMCR, bmcr);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
- tp->mac_version == RTL_GIGA_MAC_VER_03) {
- if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
- rtl_writephy(tp, 0x17, 0x2138);
- rtl_writephy(tp, 0x0e, 0x0260);
- } else {
- rtl_writephy(tp, 0x17, 0x2108);
- rtl_writephy(tp, 0x0e, 0x0000);
- }
- }
-
- rc = 0;
-out:
- return rc;
-}
-
-static int rtl8169_set_speed(struct net_device *dev,
- u8 autoneg, u16 speed, u8 duplex, u32 advertising)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- int ret;
-
- ret = tp->set_speed(dev, autoneg, speed, duplex, advertising);
- if (ret < 0)
- goto out;
-
- if (netif_running(dev) && (autoneg == AUTONEG_ENABLE) &&
- (advertising & ADVERTISED_1000baseT_Full)) {
- mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
- }
-out:
- return ret;
-}
-
-static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- unsigned long flags;
- int ret;
-
- del_timer_sync(&tp->timer);
-
- spin_lock_irqsave(&tp->lock, flags);
- ret = rtl8169_set_speed(dev, cmd->autoneg, ethtool_cmd_speed(cmd),
- cmd->duplex, cmd->advertising);
- spin_unlock_irqrestore(&tp->lock, flags);
-
- return ret;
-}
-
-static u32 rtl8169_fix_features(struct net_device *dev, u32 features)
-{
- if (dev->mtu > TD_MSS_MAX)
- features &= ~NETIF_F_ALL_TSO;
-
- return features;
-}
-
-static int rtl8169_set_features(struct net_device *dev, u32 features)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&tp->lock, flags);
-
- if (features & NETIF_F_RXCSUM)
- tp->cp_cmd |= RxChkSum;
- else
- tp->cp_cmd &= ~RxChkSum;
-
- if (dev->features & NETIF_F_HW_VLAN_RX)
- tp->cp_cmd |= RxVlan;
- else
- tp->cp_cmd &= ~RxVlan;
-
- RTL_W16(CPlusCmd, tp->cp_cmd);
- RTL_R16(CPlusCmd);
-
- spin_unlock_irqrestore(&tp->lock, flags);
-
- return 0;
-}
-
-static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
- struct sk_buff *skb)
-{
- return (vlan_tx_tag_present(skb)) ?
- TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
-}
-
-static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
-{
- u32 opts2 = le32_to_cpu(desc->opts2);
-
- if (opts2 & RxVlanTag)
- __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
-
- desc->opts2 = 0;
-}
-
-static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- u32 status;
-
- cmd->supported =
- SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
- cmd->port = PORT_FIBRE;
- cmd->transceiver = XCVR_INTERNAL;
-
- status = RTL_R32(TBICSR);
- cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
- cmd->autoneg = !!(status & TBINwEnable);
-
- ethtool_cmd_speed_set(cmd, SPEED_1000);
- cmd->duplex = DUPLEX_FULL; /* Always set */
-
- return 0;
-}
-
-static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- return mii_ethtool_gset(&tp->mii, cmd);
-}
-
-static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&tp->lock, flags);
-
- rc = tp->get_settings(dev, cmd);
-
- spin_unlock_irqrestore(&tp->lock, flags);
- return rc;
-}
-
-static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *p)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- unsigned long flags;
-
- if (regs->len > R8169_REGS_SIZE)
- regs->len = R8169_REGS_SIZE;
-
- spin_lock_irqsave(&tp->lock, flags);
- memcpy_fromio(p, tp->mmio_addr, regs->len);
- spin_unlock_irqrestore(&tp->lock, flags);
-}
-
-static u32 rtl8169_get_msglevel(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- return tp->msg_enable;
-}
-
-static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- tp->msg_enable = value;
-}
-
-static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
- "tx_packets",
- "rx_packets",
- "tx_errors",
- "rx_errors",
- "rx_missed",
- "align_errors",
- "tx_single_collisions",
- "tx_multi_collisions",
- "unicast",
- "broadcast",
- "multicast",
- "tx_aborted",
- "tx_underrun",
-};
-
-static int rtl8169_get_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return ARRAY_SIZE(rtl8169_gstrings);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void rtl8169_update_counters(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct device *d = &tp->pci_dev->dev;
- struct rtl8169_counters *counters;
- dma_addr_t paddr;
- u32 cmd;
- int wait = 1000;
-
- /*
- * Some chips are unable to dump tally counters when the receiver
- * is disabled.
- */
- if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
- return;
-
- counters = dma_alloc_coherent(d, sizeof(*counters), &paddr, GFP_KERNEL);
- if (!counters)
- return;
-
- RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
- cmd = (u64)paddr & DMA_BIT_MASK(32);
- RTL_W32(CounterAddrLow, cmd);
- RTL_W32(CounterAddrLow, cmd | CounterDump);
-
- while (wait--) {
- if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
- memcpy(&tp->counters, counters, sizeof(*counters));
- break;
- }
- udelay(10);
- }
-
- RTL_W32(CounterAddrLow, 0);
- RTL_W32(CounterAddrHigh, 0);
-
- dma_free_coherent(d, sizeof(*counters), counters, paddr);
-}
-
-static void rtl8169_get_ethtool_stats(struct net_device *dev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- ASSERT_RTNL();
-
- rtl8169_update_counters(dev);
-
- data[0] = le64_to_cpu(tp->counters.tx_packets);
- data[1] = le64_to_cpu(tp->counters.rx_packets);
- data[2] = le64_to_cpu(tp->counters.tx_errors);
- data[3] = le32_to_cpu(tp->counters.rx_errors);
- data[4] = le16_to_cpu(tp->counters.rx_missed);
- data[5] = le16_to_cpu(tp->counters.align_errors);
- data[6] = le32_to_cpu(tp->counters.tx_one_collision);
- data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
- data[8] = le64_to_cpu(tp->counters.rx_unicast);
- data[9] = le64_to_cpu(tp->counters.rx_broadcast);
- data[10] = le32_to_cpu(tp->counters.rx_multicast);
- data[11] = le16_to_cpu(tp->counters.tx_aborted);
- data[12] = le16_to_cpu(tp->counters.tx_underun);
-}
-
-static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
-{
- switch(stringset) {
- case ETH_SS_STATS:
- memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
- break;
- }
-}
-
-static const struct ethtool_ops rtl8169_ethtool_ops = {
- .get_drvinfo = rtl8169_get_drvinfo,
- .get_regs_len = rtl8169_get_regs_len,
- .get_link = ethtool_op_get_link,
- .get_settings = rtl8169_get_settings,
- .set_settings = rtl8169_set_settings,
- .get_msglevel = rtl8169_get_msglevel,
- .set_msglevel = rtl8169_set_msglevel,
- .get_regs = rtl8169_get_regs,
- .get_wol = rtl8169_get_wol,
- .set_wol = rtl8169_set_wol,
- .get_strings = rtl8169_get_strings,
- .get_sset_count = rtl8169_get_sset_count,
- .get_ethtool_stats = rtl8169_get_ethtool_stats,
-};
-
-static void rtl8169_get_mac_version(struct rtl8169_private *tp,
- struct net_device *dev, u8 default_version)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- /*
- * The driver currently handles the 8168Bf and the 8168Be identically
- * but they can be identified more specifically through the test below
- * if needed:
- *
- * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
- *
- * Same thing for the 8101Eb and the 8101Ec:
- *
- * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
- */
- static const struct rtl_mac_info {
- u32 mask;
- u32 val;
- int mac_version;
- } mac_info[] = {
- /* 8168E family. */
- { 0x7c800000, 0x2c800000, RTL_GIGA_MAC_VER_34 },
- { 0x7cf00000, 0x2c200000, RTL_GIGA_MAC_VER_33 },
- { 0x7cf00000, 0x2c100000, RTL_GIGA_MAC_VER_32 },
- { 0x7c800000, 0x2c000000, RTL_GIGA_MAC_VER_33 },
-
- /* 8168D family. */
- { 0x7cf00000, 0x28300000, RTL_GIGA_MAC_VER_26 },
- { 0x7cf00000, 0x28100000, RTL_GIGA_MAC_VER_25 },
- { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_26 },
-
- /* 8168DP family. */
- { 0x7cf00000, 0x28800000, RTL_GIGA_MAC_VER_27 },
- { 0x7cf00000, 0x28a00000, RTL_GIGA_MAC_VER_28 },
- { 0x7cf00000, 0x28b00000, RTL_GIGA_MAC_VER_31 },
-
- /* 8168C family. */
- { 0x7cf00000, 0x3cb00000, RTL_GIGA_MAC_VER_24 },
- { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 },
- { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
- { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 },
- { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
- { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
- { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 },
- { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 },
- { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 },
-
- /* 8168B family. */
- { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
- { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
- { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
- { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
-
- /* 8101 family. */
- { 0x7cf00000, 0x40b00000, RTL_GIGA_MAC_VER_30 },
- { 0x7cf00000, 0x40a00000, RTL_GIGA_MAC_VER_30 },
- { 0x7cf00000, 0x40900000, RTL_GIGA_MAC_VER_29 },
- { 0x7c800000, 0x40800000, RTL_GIGA_MAC_VER_30 },
- { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 },
- { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 },
- { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 },
- { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 },
- { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 },
- { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 },
- { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
- { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 },
- { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
- { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 },
- { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 },
- { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
- /* FIXME: where did these entries come from ? -- FR */
- { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
- { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
-
- /* 8110 family. */
- { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
- { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
- { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
- { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
- { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
- { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
-
- /* Catch-all */
- { 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE }
- };
- const struct rtl_mac_info *p = mac_info;
- u32 reg;
-
- reg = RTL_R32(TxConfig);
- while ((reg & p->mask) != p->val)
- p++;
- tp->mac_version = p->mac_version;
-
- if (tp->mac_version == RTL_GIGA_MAC_NONE) {
- netif_notice(tp, probe, dev,
- "unknown MAC, using family default\n");
- tp->mac_version = default_version;
- }
-}
-
-static void rtl8169_print_mac_version(struct rtl8169_private *tp)
-{
- dprintk("mac_version = 0x%02x\n", tp->mac_version);
-}
-
-struct phy_reg {
- u16 reg;
- u16 val;
-};
-
-static void rtl_writephy_batch(struct rtl8169_private *tp,
- const struct phy_reg *regs, int len)
-{
- while (len-- > 0) {
- rtl_writephy(tp, regs->reg, regs->val);
- regs++;
- }
-}
-
-#define PHY_READ 0x00000000
-#define PHY_DATA_OR 0x10000000
-#define PHY_DATA_AND 0x20000000
-#define PHY_BJMPN 0x30000000
-#define PHY_READ_EFUSE 0x40000000
-#define PHY_READ_MAC_BYTE 0x50000000
-#define PHY_WRITE_MAC_BYTE 0x60000000
-#define PHY_CLEAR_READCOUNT 0x70000000
-#define PHY_WRITE 0x80000000
-#define PHY_READCOUNT_EQ_SKIP 0x90000000
-#define PHY_COMP_EQ_SKIPN 0xa0000000
-#define PHY_COMP_NEQ_SKIPN 0xb0000000
-#define PHY_WRITE_PREVIOUS 0xc0000000
-#define PHY_SKIPN 0xd0000000
-#define PHY_DELAY_MS 0xe0000000
-#define PHY_WRITE_ERI_WORD 0xf0000000
-
-struct fw_info {
- u32 magic;
- char version[RTL_VER_SIZE];
- __le32 fw_start;
- __le32 fw_len;
- u8 chksum;
-} __packed;
-
-#define FW_OPCODE_SIZE sizeof(typeof(*((struct rtl_fw_phy_action *)0)->code))
-
-static bool rtl_fw_format_ok(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
-{
- const struct firmware *fw = rtl_fw->fw;
- struct fw_info *fw_info = (struct fw_info *)fw->data;
- struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
- char *version = rtl_fw->version;
- bool rc = false;
-
- if (fw->size < FW_OPCODE_SIZE)
- goto out;
-
- if (!fw_info->magic) {
- size_t i, size, start;
- u8 checksum = 0;
-
- if (fw->size < sizeof(*fw_info))
- goto out;
-
- for (i = 0; i < fw->size; i++)
- checksum += fw->data[i];
- if (checksum != 0)
- goto out;
-
- start = le32_to_cpu(fw_info->fw_start);
- if (start > fw->size)
- goto out;
-
- size = le32_to_cpu(fw_info->fw_len);
- if (size > (fw->size - start) / FW_OPCODE_SIZE)
- goto out;
-
- memcpy(version, fw_info->version, RTL_VER_SIZE);
-
- pa->code = (__le32 *)(fw->data + start);
- pa->size = size;
- } else {
- if (fw->size % FW_OPCODE_SIZE)
- goto out;
-
- strlcpy(version, rtl_lookup_firmware_name(tp), RTL_VER_SIZE);
-
- pa->code = (__le32 *)fw->data;
- pa->size = fw->size / FW_OPCODE_SIZE;
- }
- version[RTL_VER_SIZE - 1] = 0;
-
- rc = true;
-out:
- return rc;
-}
-
-static bool rtl_fw_data_ok(struct rtl8169_private *tp, struct net_device *dev,
- struct rtl_fw_phy_action *pa)
-{
- bool rc = false;
- size_t index;
-
- for (index = 0; index < pa->size; index++) {
- u32 action = le32_to_cpu(pa->code[index]);
- u32 regno = (action & 0x0fff0000) >> 16;
-
- switch(action & 0xf0000000) {
- case PHY_READ:
- case PHY_DATA_OR:
- case PHY_DATA_AND:
- case PHY_READ_EFUSE:
- case PHY_CLEAR_READCOUNT:
- case PHY_WRITE:
- case PHY_WRITE_PREVIOUS:
- case PHY_DELAY_MS:
- break;
-
- case PHY_BJMPN:
- if (regno > index) {
- netif_err(tp, ifup, tp->dev,
- "Out of range of firmware\n");
- goto out;
- }
- break;
- case PHY_READCOUNT_EQ_SKIP:
- if (index + 2 >= pa->size) {
- netif_err(tp, ifup, tp->dev,
- "Out of range of firmware\n");
- goto out;
- }
- break;
- case PHY_COMP_EQ_SKIPN:
- case PHY_COMP_NEQ_SKIPN:
- case PHY_SKIPN:
- if (index + 1 + regno >= pa->size) {
- netif_err(tp, ifup, tp->dev,
- "Out of range of firmware\n");
- goto out;
- }
- break;
-
- case PHY_READ_MAC_BYTE:
- case PHY_WRITE_MAC_BYTE:
- case PHY_WRITE_ERI_WORD:
- default:
- netif_err(tp, ifup, tp->dev,
- "Invalid action 0x%08x\n", action);
- goto out;
- }
- }
- rc = true;
-out:
- return rc;
-}
-
-static int rtl_check_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
-{
- struct net_device *dev = tp->dev;
- int rc = -EINVAL;
-
- if (!rtl_fw_format_ok(tp, rtl_fw)) {
- netif_err(tp, ifup, dev, "invalid firwmare\n");
- goto out;
- }
-
- if (rtl_fw_data_ok(tp, dev, &rtl_fw->phy_action))
- rc = 0;
-out:
- return rc;
-}
-
-static void rtl_phy_write_fw(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
-{
- struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
- u32 predata, count;
- size_t index;
-
- predata = count = 0;
-
- for (index = 0; index < pa->size; ) {
- u32 action = le32_to_cpu(pa->code[index]);
- u32 data = action & 0x0000ffff;
- u32 regno = (action & 0x0fff0000) >> 16;
-
- if (!action)
- break;
-
- switch(action & 0xf0000000) {
- case PHY_READ:
- predata = rtl_readphy(tp, regno);
- count++;
- index++;
- break;
- case PHY_DATA_OR:
- predata |= data;
- index++;
- break;
- case PHY_DATA_AND:
- predata &= data;
- index++;
- break;
- case PHY_BJMPN:
- index -= regno;
- break;
- case PHY_READ_EFUSE:
- predata = rtl8168d_efuse_read(tp->mmio_addr, regno);
- index++;
- break;
- case PHY_CLEAR_READCOUNT:
- count = 0;
- index++;
- break;
- case PHY_WRITE:
- rtl_writephy(tp, regno, data);
- index++;
- break;
- case PHY_READCOUNT_EQ_SKIP:
- index += (count == data) ? 2 : 1;
- break;
- case PHY_COMP_EQ_SKIPN:
- if (predata == data)
- index += regno;
- index++;
- break;
- case PHY_COMP_NEQ_SKIPN:
- if (predata != data)
- index += regno;
- index++;
- break;
- case PHY_WRITE_PREVIOUS:
- rtl_writephy(tp, regno, predata);
- index++;
- break;
- case PHY_SKIPN:
- index += regno + 1;
- break;
- case PHY_DELAY_MS:
- mdelay(data);
- index++;
- break;
-
- case PHY_READ_MAC_BYTE:
- case PHY_WRITE_MAC_BYTE:
- case PHY_WRITE_ERI_WORD:
- default:
- BUG();
- }
- }
-}
-
-static void rtl_release_firmware(struct rtl8169_private *tp)
-{
- if (!IS_ERR_OR_NULL(tp->rtl_fw)) {
- release_firmware(tp->rtl_fw->fw);
- kfree(tp->rtl_fw);
- }
- tp->rtl_fw = RTL_FIRMWARE_UNKNOWN;
-}
-
-static void rtl_apply_firmware(struct rtl8169_private *tp)
-{
- struct rtl_fw *rtl_fw = tp->rtl_fw;
-
- /* TODO: release firmware once rtl_phy_write_fw signals failures. */
- if (!IS_ERR_OR_NULL(rtl_fw))
- rtl_phy_write_fw(tp, rtl_fw);
-}
-
-static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
-{
- if (rtl_readphy(tp, reg) != val)
- netif_warn(tp, hw, tp->dev, "chipset not ready for firmware\n");
- else
- rtl_apply_firmware(tp);
-}
-
-static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x06, 0x006e },
- { 0x08, 0x0708 },
- { 0x15, 0x4000 },
- { 0x18, 0x65c7 },
-
- { 0x1f, 0x0001 },
- { 0x03, 0x00a1 },
- { 0x02, 0x0008 },
- { 0x01, 0x0120 },
- { 0x00, 0x1000 },
- { 0x04, 0x0800 },
- { 0x04, 0x0000 },
-
- { 0x03, 0xff41 },
- { 0x02, 0xdf60 },
- { 0x01, 0x0140 },
- { 0x00, 0x0077 },
- { 0x04, 0x7800 },
- { 0x04, 0x7000 },
-
- { 0x03, 0x802f },
- { 0x02, 0x4f02 },
- { 0x01, 0x0409 },
- { 0x00, 0xf0f9 },
- { 0x04, 0x9800 },
- { 0x04, 0x9000 },
-
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0xff95 },
- { 0x00, 0xba00 },
- { 0x04, 0xa800 },
- { 0x04, 0xa000 },
-
- { 0x03, 0xff41 },
- { 0x02, 0xdf20 },
- { 0x01, 0x0140 },
- { 0x00, 0x00bb },
- { 0x04, 0xb800 },
- { 0x04, 0xb000 },
-
- { 0x03, 0xdf41 },
- { 0x02, 0xdc60 },
- { 0x01, 0x6340 },
- { 0x00, 0x007d },
- { 0x04, 0xd800 },
- { 0x04, 0xd000 },
-
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0x100a },
- { 0x00, 0xa0ff },
- { 0x04, 0xf800 },
- { 0x04, 0xf000 },
-
- { 0x1f, 0x0000 },
- { 0x0b, 0x0000 },
- { 0x00, 0x9200 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x01, 0x90d0 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp)
-{
- struct pci_dev *pdev = tp->pci_dev;
-
- if ((pdev->subsystem_vendor != PCI_VENDOR_ID_GIGABYTE) ||
- (pdev->subsystem_device != 0xe000))
- return;
-
- rtl_writephy(tp, 0x1f, 0x0001);
- rtl_writephy(tp, 0x10, 0xf01b);
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x04, 0x0000 },
- { 0x03, 0x00a1 },
- { 0x02, 0x0008 },
- { 0x01, 0x0120 },
- { 0x00, 0x1000 },
- { 0x04, 0x0800 },
- { 0x04, 0x9000 },
- { 0x03, 0x802f },
- { 0x02, 0x4f02 },
- { 0x01, 0x0409 },
- { 0x00, 0xf099 },
- { 0x04, 0x9800 },
- { 0x04, 0xa000 },
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0xff95 },
- { 0x00, 0xba00 },
- { 0x04, 0xa800 },
- { 0x04, 0xf000 },
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0x101a },
- { 0x00, 0xa0ff },
- { 0x04, 0xf800 },
- { 0x04, 0x0000 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x10, 0xf41b },
- { 0x14, 0xfb54 },
- { 0x18, 0xf5c7 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- rtl8169scd_hw_phy_config_quirk(tp);
-}
-
-static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x04, 0x0000 },
- { 0x03, 0x00a1 },
- { 0x02, 0x0008 },
- { 0x01, 0x0120 },
- { 0x00, 0x1000 },
- { 0x04, 0x0800 },
- { 0x04, 0x9000 },
- { 0x03, 0x802f },
- { 0x02, 0x4f02 },
- { 0x01, 0x0409 },
- { 0x00, 0xf099 },
- { 0x04, 0x9800 },
- { 0x04, 0xa000 },
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0xff95 },
- { 0x00, 0xba00 },
- { 0x04, 0xa800 },
- { 0x04, 0xf000 },
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0x101a },
- { 0x00, 0xa0ff },
- { 0x04, 0xf800 },
- { 0x04, 0x0000 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x0b, 0x8480 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x18, 0x67c7 },
- { 0x04, 0x2000 },
- { 0x03, 0x002f },
- { 0x02, 0x4360 },
- { 0x01, 0x0109 },
- { 0x00, 0x3022 },
- { 0x04, 0x2800 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x10, 0xf41b },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy(tp, 0x1f, 0x0001);
- rtl_patchphy(tp, 0x16, 1 << 0);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x10, 0xf41b },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0000 },
- { 0x1d, 0x0f00 },
- { 0x1f, 0x0002 },
- { 0x0c, 0x1ec8 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x1d, 0x3d98 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_patchphy(tp, 0x14, 1 << 5);
- rtl_patchphy(tp, 0x0d, 1 << 5);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x12, 0x2300 },
- { 0x1f, 0x0002 },
- { 0x00, 0x88d4 },
- { 0x01, 0x82b1 },
- { 0x03, 0x7002 },
- { 0x08, 0x9e30 },
- { 0x09, 0x01f0 },
- { 0x0a, 0x5500 },
- { 0x0c, 0x00c8 },
- { 0x1f, 0x0003 },
- { 0x12, 0xc096 },
- { 0x16, 0x000a },
- { 0x1f, 0x0000 },
- { 0x1f, 0x0000 },
- { 0x09, 0x2000 },
- { 0x09, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- rtl_patchphy(tp, 0x14, 1 << 5);
- rtl_patchphy(tp, 0x0d, 1 << 5);
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x12, 0x2300 },
- { 0x03, 0x802f },
- { 0x02, 0x4f02 },
- { 0x01, 0x0409 },
- { 0x00, 0xf099 },
- { 0x04, 0x9800 },
- { 0x04, 0x9000 },
- { 0x1d, 0x3d98 },
- { 0x1f, 0x0002 },
- { 0x0c, 0x7eb8 },
- { 0x06, 0x0761 },
- { 0x1f, 0x0003 },
- { 0x16, 0x0f0a },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- rtl_patchphy(tp, 0x16, 1 << 0);
- rtl_patchphy(tp, 0x14, 1 << 5);
- rtl_patchphy(tp, 0x0d, 1 << 5);
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x12, 0x2300 },
- { 0x1d, 0x3d98 },
- { 0x1f, 0x0002 },
- { 0x0c, 0x7eb8 },
- { 0x06, 0x5461 },
- { 0x1f, 0x0003 },
- { 0x16, 0x0f0a },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- rtl_patchphy(tp, 0x16, 1 << 0);
- rtl_patchphy(tp, 0x14, 1 << 5);
- rtl_patchphy(tp, 0x0d, 1 << 5);
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8168c_4_hw_phy_config(struct rtl8169_private *tp)
-{
- rtl8168c_3_hw_phy_config(tp);
-}
-
-static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init_0[] = {
- /* Channel Estimation */
- { 0x1f, 0x0001 },
- { 0x06, 0x4064 },
- { 0x07, 0x2863 },
- { 0x08, 0x059c },
- { 0x09, 0x26b4 },
- { 0x0a, 0x6a19 },
- { 0x0b, 0xdcc8 },
- { 0x10, 0xf06d },
- { 0x14, 0x7f68 },
- { 0x18, 0x7fd9 },
- { 0x1c, 0xf0ff },
- { 0x1d, 0x3d9c },
- { 0x1f, 0x0003 },
- { 0x12, 0xf49f },
- { 0x13, 0x070b },
- { 0x1a, 0x05ad },
- { 0x14, 0x94c0 },
-
- /*
- * Tx Error Issue
- * Enhance line driver power
- */
- { 0x1f, 0x0002 },
- { 0x06, 0x5561 },
- { 0x1f, 0x0005 },
- { 0x05, 0x8332 },
- { 0x06, 0x5561 },
-
- /*
- * Can not link to 1Gbps with bad cable
- * Decrease SNR threshold form 21.07dB to 19.04dB
- */
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
-
- { 0x1f, 0x0000 },
- { 0x0d, 0xf880 }
- };
- void __iomem *ioaddr = tp->mmio_addr;
-
- rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
-
- /*
- * Rx Error Issue
- * Fine Tune Switching regulator parameter
- */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_w1w0_phy(tp, 0x0b, 0x0010, 0x00ef);
- rtl_w1w0_phy(tp, 0x0c, 0xa200, 0x5d00);
-
- if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x05, 0x669a },
- { 0x1f, 0x0005 },
- { 0x05, 0x8330 },
- { 0x06, 0x669a },
- { 0x1f, 0x0002 }
- };
- int val;
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- val = rtl_readphy(tp, 0x0d);
-
- if ((val & 0x00ff) != 0x006c) {
- static const u32 set[] = {
- 0x0065, 0x0066, 0x0067, 0x0068,
- 0x0069, 0x006a, 0x006b, 0x006c
- };
- int i;
-
- rtl_writephy(tp, 0x1f, 0x0002);
-
- val &= 0xff00;
- for (i = 0; i < ARRAY_SIZE(set); i++)
- rtl_writephy(tp, 0x0d, val | set[i]);
- }
- } else {
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x05, 0x6662 },
- { 0x1f, 0x0005 },
- { 0x05, 0x8330 },
- { 0x06, 0x6662 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
- }
-
- /* RSET couple improve */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_patchphy(tp, 0x0d, 0x0300);
- rtl_patchphy(tp, 0x0f, 0x0010);
-
- /* Fine tune PLL performance */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
- rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
-
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x001b);
-
- rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xbf00);
-
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init_0[] = {
- /* Channel Estimation */
- { 0x1f, 0x0001 },
- { 0x06, 0x4064 },
- { 0x07, 0x2863 },
- { 0x08, 0x059c },
- { 0x09, 0x26b4 },
- { 0x0a, 0x6a19 },
- { 0x0b, 0xdcc8 },
- { 0x10, 0xf06d },
- { 0x14, 0x7f68 },
- { 0x18, 0x7fd9 },
- { 0x1c, 0xf0ff },
- { 0x1d, 0x3d9c },
- { 0x1f, 0x0003 },
- { 0x12, 0xf49f },
- { 0x13, 0x070b },
- { 0x1a, 0x05ad },
- { 0x14, 0x94c0 },
-
- /*
- * Tx Error Issue
- * Enhance line driver power
- */
- { 0x1f, 0x0002 },
- { 0x06, 0x5561 },
- { 0x1f, 0x0005 },
- { 0x05, 0x8332 },
- { 0x06, 0x5561 },
-
- /*
- * Can not link to 1Gbps with bad cable
- * Decrease SNR threshold form 21.07dB to 19.04dB
- */
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
-
- { 0x1f, 0x0000 },
- { 0x0d, 0xf880 }
- };
- void __iomem *ioaddr = tp->mmio_addr;
-
- rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
-
- if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x05, 0x669a },
- { 0x1f, 0x0005 },
- { 0x05, 0x8330 },
- { 0x06, 0x669a },
-
- { 0x1f, 0x0002 }
- };
- int val;
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- val = rtl_readphy(tp, 0x0d);
- if ((val & 0x00ff) != 0x006c) {
- static const u32 set[] = {
- 0x0065, 0x0066, 0x0067, 0x0068,
- 0x0069, 0x006a, 0x006b, 0x006c
- };
- int i;
-
- rtl_writephy(tp, 0x1f, 0x0002);
-
- val &= 0xff00;
- for (i = 0; i < ARRAY_SIZE(set); i++)
- rtl_writephy(tp, 0x0d, val | set[i]);
- }
- } else {
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x05, 0x2642 },
- { 0x1f, 0x0005 },
- { 0x05, 0x8330 },
- { 0x06, 0x2642 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
- }
-
- /* Fine tune PLL performance */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
- rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
-
- /* Switching regulator Slew rate */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_patchphy(tp, 0x0f, 0x0017);
-
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x001b);
-
- rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xb300);
-
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0002 },
- { 0x10, 0x0008 },
- { 0x0d, 0x006c },
-
- { 0x1f, 0x0000 },
- { 0x0d, 0xf880 },
-
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
-
- { 0x1f, 0x0001 },
- { 0x0b, 0xa4d8 },
- { 0x09, 0x281c },
- { 0x07, 0x2883 },
- { 0x0a, 0x6b35 },
- { 0x1d, 0x3da4 },
- { 0x1c, 0xeffd },
- { 0x14, 0x7f52 },
- { 0x18, 0x7fc6 },
- { 0x08, 0x0601 },
- { 0x06, 0x4063 },
- { 0x10, 0xf074 },
- { 0x1f, 0x0003 },
- { 0x13, 0x0789 },
- { 0x12, 0xf4bd },
- { 0x1a, 0x04fd },
- { 0x14, 0x84b0 },
- { 0x1f, 0x0000 },
- { 0x00, 0x9200 },
-
- { 0x1f, 0x0005 },
- { 0x01, 0x0340 },
- { 0x1f, 0x0001 },
- { 0x04, 0x4000 },
- { 0x03, 0x1d21 },
- { 0x02, 0x0c32 },
- { 0x01, 0x0200 },
- { 0x00, 0x5554 },
- { 0x04, 0x4800 },
- { 0x04, 0x4000 },
- { 0x04, 0xf000 },
- { 0x03, 0xdf01 },
- { 0x02, 0xdf20 },
- { 0x01, 0x101a },
- { 0x00, 0xa0ff },
- { 0x04, 0xf800 },
- { 0x04, 0xf000 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0007 },
- { 0x1e, 0x0023 },
- { 0x16, 0x0000 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0001 },
- { 0x17, 0x0cc0 },
-
- { 0x1f, 0x0007 },
- { 0x1e, 0x002d },
- { 0x18, 0x0040 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
- rtl_patchphy(tp, 0x0d, 1 << 5);
-}
-
-static void rtl8168e_1_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- /* Enable Delay cap */
- { 0x1f, 0x0005 },
- { 0x05, 0x8b80 },
- { 0x06, 0xc896 },
- { 0x1f, 0x0000 },
-
- /* Channel estimation fine tune */
- { 0x1f, 0x0001 },
- { 0x0b, 0x6c20 },
- { 0x07, 0x2872 },
- { 0x1c, 0xefff },
- { 0x1f, 0x0003 },
- { 0x14, 0x6420 },
- { 0x1f, 0x0000 },
-
- /* Update PFM & 10M TX idle timer */
- { 0x1f, 0x0007 },
- { 0x1e, 0x002f },
- { 0x15, 0x1919 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0007 },
- { 0x1e, 0x00ac },
- { 0x18, 0x0006 },
- { 0x1f, 0x0000 }
- };
-
- rtl_apply_firmware(tp);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- /* DCO enable for 10M IDLE Power */
- rtl_writephy(tp, 0x1f, 0x0007);
- rtl_writephy(tp, 0x1e, 0x0023);
- rtl_w1w0_phy(tp, 0x17, 0x0006, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- /* For impedance matching */
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_w1w0_phy(tp, 0x08, 0x8000, 0x7f00);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- /* PHY auto speed down */
- rtl_writephy(tp, 0x1f, 0x0007);
- rtl_writephy(tp, 0x1e, 0x002d);
- rtl_w1w0_phy(tp, 0x18, 0x0050, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_w1w0_phy(tp, 0x14, 0x8000, 0x0000);
-
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b86);
- rtl_w1w0_phy(tp, 0x06, 0x0001, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b85);
- rtl_w1w0_phy(tp, 0x06, 0x0000, 0x2000);
- rtl_writephy(tp, 0x1f, 0x0007);
- rtl_writephy(tp, 0x1e, 0x0020);
- rtl_w1w0_phy(tp, 0x15, 0x0000, 0x1100);
- rtl_writephy(tp, 0x1f, 0x0006);
- rtl_writephy(tp, 0x00, 0x5a00);
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x0d, 0x0007);
- rtl_writephy(tp, 0x0e, 0x003c);
- rtl_writephy(tp, 0x0d, 0x4007);
- rtl_writephy(tp, 0x0e, 0x0000);
- rtl_writephy(tp, 0x0d, 0x0000);
-}
-
-static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- /* Enable Delay cap */
- { 0x1f, 0x0004 },
- { 0x1f, 0x0007 },
- { 0x1e, 0x00ac },
- { 0x18, 0x0006 },
- { 0x1f, 0x0002 },
- { 0x1f, 0x0000 },
- { 0x1f, 0x0000 },
-
- /* Channel estimation fine tune */
- { 0x1f, 0x0003 },
- { 0x09, 0xa20f },
- { 0x1f, 0x0000 },
- { 0x1f, 0x0000 },
-
- /* Green Setting */
- { 0x1f, 0x0005 },
- { 0x05, 0x8b5b },
- { 0x06, 0x9222 },
- { 0x05, 0x8b6d },
- { 0x06, 0x8000 },
- { 0x05, 0x8b76 },
- { 0x06, 0x8000 },
- { 0x1f, 0x0000 }
- };
-
- rtl_apply_firmware(tp);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-
- /* For 4-corner performance improve */
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b80);
- rtl_w1w0_phy(tp, 0x17, 0x0006, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- /* PHY auto speed down */
- rtl_writephy(tp, 0x1f, 0x0004);
- rtl_writephy(tp, 0x1f, 0x0007);
- rtl_writephy(tp, 0x1e, 0x002d);
- rtl_w1w0_phy(tp, 0x18, 0x0010, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_w1w0_phy(tp, 0x14, 0x8000, 0x0000);
-
- /* improve 10M EEE waveform */
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b86);
- rtl_w1w0_phy(tp, 0x06, 0x0001, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- /* Improve 2-pair detection performance */
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b85);
- rtl_w1w0_phy(tp, 0x06, 0x4000, 0x0000);
- rtl_writephy(tp, 0x1f, 0x0000);
-
- /* EEE setting */
- rtl_w1w0_eri(tp->mmio_addr, 0x1b0, ERIAR_MASK_1111, 0x0000, 0x0003,
- ERIAR_EXGMAC);
- rtl_writephy(tp, 0x1f, 0x0005);
- rtl_writephy(tp, 0x05, 0x8b85);
- rtl_w1w0_phy(tp, 0x06, 0x0000, 0x2000);
- rtl_writephy(tp, 0x1f, 0x0004);
- rtl_writephy(tp, 0x1f, 0x0007);
- rtl_writephy(tp, 0x1e, 0x0020);
- rtl_w1w0_phy(tp, 0x06, 0x0000, 0x0100);
- rtl_writephy(tp, 0x1f, 0x0002);
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x0d, 0x0007);
- rtl_writephy(tp, 0x0e, 0x003c);
- rtl_writephy(tp, 0x0d, 0x4007);
- rtl_writephy(tp, 0x0e, 0x0000);
- rtl_writephy(tp, 0x0d, 0x0000);
-
- /* Green feature */
- rtl_writephy(tp, 0x1f, 0x0003);
- rtl_w1w0_phy(tp, 0x19, 0x0000, 0x0001);
- rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0400);
- rtl_writephy(tp, 0x1f, 0x0000);
-}
-
-static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0003 },
- { 0x08, 0x441d },
- { 0x01, 0x9100 },
- { 0x1f, 0x0000 }
- };
-
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_patchphy(tp, 0x11, 1 << 12);
- rtl_patchphy(tp, 0x19, 1 << 13);
- rtl_patchphy(tp, 0x10, 1 << 15);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl8105e_hw_phy_config(struct rtl8169_private *tp)
-{
- static const struct phy_reg phy_reg_init[] = {
- { 0x1f, 0x0005 },
- { 0x1a, 0x0000 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0004 },
- { 0x1c, 0x0000 },
- { 0x1f, 0x0000 },
-
- { 0x1f, 0x0001 },
- { 0x15, 0x7701 },
- { 0x1f, 0x0000 }
- };
-
- /* Disable ALDPS before ram code */
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x18, 0x0310);
- msleep(100);
-
- rtl_apply_firmware(tp);
-
- rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
-
-static void rtl_hw_phy_config(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl8169_print_mac_version(tp);
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_01:
- break;
- case RTL_GIGA_MAC_VER_02:
- case RTL_GIGA_MAC_VER_03:
- rtl8169s_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_04:
- rtl8169sb_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_05:
- rtl8169scd_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_06:
- rtl8169sce_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_07:
- case RTL_GIGA_MAC_VER_08:
- case RTL_GIGA_MAC_VER_09:
- rtl8102e_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_11:
- rtl8168bb_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_12:
- rtl8168bef_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_17:
- rtl8168bef_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_18:
- rtl8168cp_1_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_19:
- rtl8168c_1_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_20:
- rtl8168c_2_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_21:
- rtl8168c_3_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_22:
- rtl8168c_4_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- rtl8168cp_2_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_25:
- rtl8168d_1_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_26:
- rtl8168d_2_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_27:
- rtl8168d_3_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_28:
- rtl8168d_4_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_29:
- case RTL_GIGA_MAC_VER_30:
- rtl8105e_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_31:
- /* None. */
- break;
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- rtl8168e_1_hw_phy_config(tp);
- break;
- case RTL_GIGA_MAC_VER_34:
- rtl8168e_2_hw_phy_config(tp);
- break;
-
- default:
- break;
- }
-}
-
-static void rtl8169_phy_timer(unsigned long __opaque)
-{
- struct net_device *dev = (struct net_device *)__opaque;
- struct rtl8169_private *tp = netdev_priv(dev);
- struct timer_list *timer = &tp->timer;
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long timeout = RTL8169_PHY_TIMEOUT;
-
- assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
-
- spin_lock_irq(&tp->lock);
-
- if (tp->phy_reset_pending(tp)) {
- /*
- * A busy loop could burn quite a few cycles on nowadays CPU.
- * Let's delay the execution of the timer for a few ticks.
- */
- timeout = HZ/10;
- goto out_mod_timer;
- }
-
- if (tp->link_ok(ioaddr))
- goto out_unlock;
-
- netif_warn(tp, link, dev, "PHY reset until link up\n");
-
- tp->phy_reset_enable(tp);
-
-out_mod_timer:
- mod_timer(timer, jiffies + timeout);
-out_unlock:
- spin_unlock_irq(&tp->lock);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-static void rtl8169_netpoll(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct pci_dev *pdev = tp->pci_dev;
-
- disable_irq(pdev->irq);
- rtl8169_interrupt(pdev->irq, dev);
- enable_irq(pdev->irq);
-}
-#endif
-
-static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
- void __iomem *ioaddr)
-{
- iounmap(ioaddr);
- pci_release_regions(pdev);
- pci_clear_mwi(pdev);
- pci_disable_device(pdev);
- free_netdev(dev);
-}
-
-static void rtl8169_phy_reset(struct net_device *dev,
- struct rtl8169_private *tp)
-{
- unsigned int i;
-
- tp->phy_reset_enable(tp);
- for (i = 0; i < 100; i++) {
- if (!tp->phy_reset_pending(tp))
- return;
- msleep(1);
- }
- netif_err(tp, link, dev, "PHY reset failed\n");
-}
-
-static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- rtl_hw_phy_config(dev);
-
- if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
- dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
- RTL_W8(0x82, 0x01);
- }
-
- pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
-
- if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
- pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
- dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
- RTL_W8(0x82, 0x01);
- dprintk("Set PHY Reg 0x0bh = 0x00h\n");
- rtl_writephy(tp, 0x0b, 0x0000); //w 0x0b 15 0 0
- }
-
- rtl8169_phy_reset(dev, tp);
-
- rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL,
- ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
- (tp->mii.supports_gmii ?
- ADVERTISED_1000baseT_Half |
- ADVERTISED_1000baseT_Full : 0));
-
- if (RTL_R8(PHYstatus) & TBI_Enable)
- netif_info(tp, link, dev, "TBI auto-negotiating\n");
-}
-
-static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- u32 high;
- u32 low;
-
- low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
- high = addr[4] | (addr[5] << 8);
-
- spin_lock_irq(&tp->lock);
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
-
- RTL_W32(MAC4, high);
- RTL_R32(MAC4);
-
- RTL_W32(MAC0, low);
- RTL_R32(MAC0);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
- const struct exgmac_reg e[] = {
- { .addr = 0xe0, ERIAR_MASK_1111, .val = low },
- { .addr = 0xe4, ERIAR_MASK_1111, .val = high },
- { .addr = 0xf0, ERIAR_MASK_1111, .val = low << 16 },
- { .addr = 0xf4, ERIAR_MASK_1111, .val = high << 16 |
- low >> 16 },
- };
-
- rtl_write_exgmac_batch(ioaddr, e, ARRAY_SIZE(e));
- }
-
- RTL_W8(Cfg9346, Cfg9346_Lock);
-
- spin_unlock_irq(&tp->lock);
-}
-
-static int rtl_set_mac_address(struct net_device *dev, void *p)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
- rtl_rar_set(tp, dev->dev_addr);
-
- return 0;
-}
-
-static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct mii_ioctl_data *data = if_mii(ifr);
-
- return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
-}
-
-static int rtl_xmii_ioctl(struct rtl8169_private *tp,
- struct mii_ioctl_data *data, int cmd)
-{
- switch (cmd) {
- case SIOCGMIIPHY:
- data->phy_id = 32; /* Internal PHY */
- return 0;
-
- case SIOCGMIIREG:
- data->val_out = rtl_readphy(tp, data->reg_num & 0x1f);
- return 0;
-
- case SIOCSMIIREG:
- rtl_writephy(tp, data->reg_num & 0x1f, data->val_in);
- return 0;
- }
- return -EOPNOTSUPP;
-}
-
-static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
-{
- return -EOPNOTSUPP;
-}
-
-static const struct rtl_cfg_info {
- void (*hw_start)(struct net_device *);
- unsigned int region;
- unsigned int align;
- u16 intr_event;
- u16 napi_event;
- unsigned features;
- u8 default_ver;
-} rtl_cfg_infos [] = {
- [RTL_CFG_0] = {
- .hw_start = rtl_hw_start_8169,
- .region = 1,
- .align = 0,
- .intr_event = SYSErr | LinkChg | RxOverflow |
- RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
- .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
- .features = RTL_FEATURE_GMII,
- .default_ver = RTL_GIGA_MAC_VER_01,
- },
- [RTL_CFG_1] = {
- .hw_start = rtl_hw_start_8168,
- .region = 2,
- .align = 8,
- .intr_event = SYSErr | LinkChg | RxOverflow |
- TxErr | TxOK | RxOK | RxErr,
- .napi_event = TxErr | TxOK | RxOK | RxOverflow,
- .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
- .default_ver = RTL_GIGA_MAC_VER_11,
- },
- [RTL_CFG_2] = {
- .hw_start = rtl_hw_start_8101,
- .region = 2,
- .align = 8,
- .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
- RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
- .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
- .features = RTL_FEATURE_MSI,
- .default_ver = RTL_GIGA_MAC_VER_13,
- }
-};
-
-/* Cfg9346_Unlock assumed. */
-static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
- const struct rtl_cfg_info *cfg)
-{
- unsigned msi = 0;
- u8 cfg2;
-
- cfg2 = RTL_R8(Config2) & ~MSIEnable;
- if (cfg->features & RTL_FEATURE_MSI) {
- if (pci_enable_msi(pdev)) {
- dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
- } else {
- cfg2 |= MSIEnable;
- msi = RTL_FEATURE_MSI;
- }
- }
- RTL_W8(Config2, cfg2);
- return msi;
-}
-
-static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
-{
- if (tp->features & RTL_FEATURE_MSI) {
- pci_disable_msi(pdev);
- tp->features &= ~RTL_FEATURE_MSI;
- }
-}
-
-static const struct net_device_ops rtl8169_netdev_ops = {
- .ndo_open = rtl8169_open,
- .ndo_stop = rtl8169_close,
- .ndo_get_stats = rtl8169_get_stats,
- .ndo_start_xmit = rtl8169_start_xmit,
- .ndo_tx_timeout = rtl8169_tx_timeout,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_change_mtu = rtl8169_change_mtu,
- .ndo_fix_features = rtl8169_fix_features,
- .ndo_set_features = rtl8169_set_features,
- .ndo_set_mac_address = rtl_set_mac_address,
- .ndo_do_ioctl = rtl8169_ioctl,
- .ndo_set_multicast_list = rtl_set_rx_mode,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = rtl8169_netpoll,
-#endif
-
-};
-
-static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
-{
- struct mdio_ops *ops = &tp->mdio_ops;
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_27:
- ops->write = r8168dp_1_mdio_write;
- ops->read = r8168dp_1_mdio_read;
- break;
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- ops->write = r8168dp_2_mdio_write;
- ops->read = r8168dp_2_mdio_read;
- break;
- default:
- ops->write = r8169_mdio_write;
- ops->read = r8169_mdio_read;
- break;
- }
-}
-
-static void r810x_phy_power_down(struct rtl8169_private *tp)
-{
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
-}
-
-static void r810x_phy_power_up(struct rtl8169_private *tp)
-{
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
-}
-
-static void r810x_pll_power_down(struct rtl8169_private *tp)
-{
- if (__rtl8169_get_wol(tp) & WAKE_ANY) {
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, MII_BMCR, 0x0000);
- return;
- }
-
- r810x_phy_power_down(tp);
-}
-
-static void r810x_pll_power_up(struct rtl8169_private *tp)
-{
- r810x_phy_power_up(tp);
-}
-
-static void r8168_phy_power_up(struct rtl8169_private *tp)
-{
- rtl_writephy(tp, 0x1f, 0x0000);
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_17:
- case RTL_GIGA_MAC_VER_18:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- rtl_writephy(tp, 0x0e, 0x0000);
- break;
- default:
- break;
- }
- rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
-}
-
-static void r8168_phy_power_down(struct rtl8169_private *tp)
-{
- rtl_writephy(tp, 0x1f, 0x0000);
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE | BMCR_PDOWN);
- break;
-
- case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_17:
- case RTL_GIGA_MAC_VER_18:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- rtl_writephy(tp, 0x0e, 0x0200);
- default:
- rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
- break;
- }
-}
-
-static void r8168_pll_power_down(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- if ((tp->mac_version == RTL_GIGA_MAC_VER_27 ||
- tp->mac_version == RTL_GIGA_MAC_VER_28 ||
- tp->mac_version == RTL_GIGA_MAC_VER_31) &&
- r8168dp_check_dash(tp)) {
- return;
- }
-
- if ((tp->mac_version == RTL_GIGA_MAC_VER_23 ||
- tp->mac_version == RTL_GIGA_MAC_VER_24) &&
- (RTL_R16(CPlusCmd) & ASF)) {
- return;
- }
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
- tp->mac_version == RTL_GIGA_MAC_VER_33)
- rtl_ephy_write(ioaddr, 0x19, 0xff64);
-
- if (__rtl8169_get_wol(tp) & WAKE_ANY) {
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, MII_BMCR, 0x0000);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
- tp->mac_version == RTL_GIGA_MAC_VER_33)
- RTL_W32(RxConfig, RTL_R32(RxConfig) | AcceptBroadcast |
- AcceptMulticast | AcceptMyPhys);
- return;
- }
-
- r8168_phy_power_down(tp);
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- RTL_W8(PMCH, RTL_R8(PMCH) & ~0x80);
- break;
- }
-}
-
-static void r8168_pll_power_up(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- if ((tp->mac_version == RTL_GIGA_MAC_VER_27 ||
- tp->mac_version == RTL_GIGA_MAC_VER_28 ||
- tp->mac_version == RTL_GIGA_MAC_VER_31) &&
- r8168dp_check_dash(tp)) {
- return;
- }
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- RTL_W8(PMCH, RTL_R8(PMCH) | 0x80);
- break;
- }
-
- r8168_phy_power_up(tp);
-}
-
-static void rtl_pll_power_op(struct rtl8169_private *tp,
- void (*op)(struct rtl8169_private *))
-{
- if (op)
- op(tp);
-}
-
-static void rtl_pll_power_down(struct rtl8169_private *tp)
-{
- rtl_pll_power_op(tp, tp->pll_power_ops.down);
-}
-
-static void rtl_pll_power_up(struct rtl8169_private *tp)
-{
- rtl_pll_power_op(tp, tp->pll_power_ops.up);
-}
-
-static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
-{
- struct pll_power_ops *ops = &tp->pll_power_ops;
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_07:
- case RTL_GIGA_MAC_VER_08:
- case RTL_GIGA_MAC_VER_09:
- case RTL_GIGA_MAC_VER_10:
- case RTL_GIGA_MAC_VER_16:
- case RTL_GIGA_MAC_VER_29:
- case RTL_GIGA_MAC_VER_30:
- ops->down = r810x_pll_power_down;
- ops->up = r810x_pll_power_up;
- break;
-
- case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_17:
- case RTL_GIGA_MAC_VER_18:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- case RTL_GIGA_MAC_VER_34:
- ops->down = r8168_pll_power_down;
- ops->up = r8168_pll_power_up;
- break;
-
- default:
- ops->down = NULL;
- ops->up = NULL;
- break;
- }
-}
-
-static void rtl_init_rxcfg(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_01:
- case RTL_GIGA_MAC_VER_02:
- case RTL_GIGA_MAC_VER_03:
- case RTL_GIGA_MAC_VER_04:
- case RTL_GIGA_MAC_VER_05:
- case RTL_GIGA_MAC_VER_06:
- case RTL_GIGA_MAC_VER_10:
- case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_13:
- case RTL_GIGA_MAC_VER_14:
- case RTL_GIGA_MAC_VER_15:
- case RTL_GIGA_MAC_VER_16:
- case RTL_GIGA_MAC_VER_17:
- RTL_W32(RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
- break;
- case RTL_GIGA_MAC_VER_18:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- RTL_W32(RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
- break;
- default:
- RTL_W32(RxConfig, RX128_INT_EN | RX_DMA_BURST);
- break;
- }
-}
-
-static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
-{
- tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
-}
-
-static void rtl_hw_reset(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
- int i;
-
- /* Soft reset the chip. */
- RTL_W8(ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 0; i < 100; i++) {
- if ((RTL_R8(ChipCmd) & CmdReset) == 0)
- break;
- udelay(100);
- }
-
- rtl8169_init_ring_indexes(tp);
-}
-
-static int __devinit
-rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
- const unsigned int region = cfg->region;
- struct rtl8169_private *tp;
- struct mii_if_info *mii;
- struct net_device *dev;
- void __iomem *ioaddr;
- int chipset, i;
- int rc;
-
- if (netif_msg_drv(&debug)) {
- printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
- MODULENAME, RTL8169_VERSION);
- }
-
- dev = alloc_etherdev(sizeof (*tp));
- if (!dev) {
- if (netif_msg_drv(&debug))
- dev_err(&pdev->dev, "unable to alloc new ethernet\n");
- rc = -ENOMEM;
- goto out;
- }
-
- SET_NETDEV_DEV(dev, &pdev->dev);
- dev->netdev_ops = &rtl8169_netdev_ops;
- tp = netdev_priv(dev);
- tp->dev = dev;
- tp->pci_dev = pdev;
- tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
-
- mii = &tp->mii;
- mii->dev = dev;
- mii->mdio_read = rtl_mdio_read;
- mii->mdio_write = rtl_mdio_write;
- mii->phy_id_mask = 0x1f;
- mii->reg_num_mask = 0x1f;
- mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
-
- /* disable ASPM completely as that cause random device stop working
- * problems as well as full system hangs for some PCIe devices users */
- pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
- PCIE_LINK_STATE_CLKPM);
-
- /* enable device (incl. PCI PM wakeup and hotplug setup) */
- rc = pci_enable_device(pdev);
- if (rc < 0) {
- netif_err(tp, probe, dev, "enable failure\n");
- goto err_out_free_dev_1;
- }
-
- if (pci_set_mwi(pdev) < 0)
- netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
-
- /* make sure PCI base addr 1 is MMIO */
- if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
- netif_err(tp, probe, dev,
- "region #%d not an MMIO resource, aborting\n",
- region);
- rc = -ENODEV;
- goto err_out_mwi_2;
- }
-
- /* check for weird/broken PCI region reporting */
- if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
- netif_err(tp, probe, dev,
- "Invalid PCI region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out_mwi_2;
- }
-
- rc = pci_request_regions(pdev, MODULENAME);
- if (rc < 0) {
- netif_err(tp, probe, dev, "could not request regions\n");
- goto err_out_mwi_2;
- }
-
- tp->cp_cmd = RxChkSum;
-
- if ((sizeof(dma_addr_t) > 4) &&
- !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
- tp->cp_cmd |= PCIDAC;
- dev->features |= NETIF_F_HIGHDMA;
- } else {
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc < 0) {
- netif_err(tp, probe, dev, "DMA configuration failed\n");
- goto err_out_free_res_3;
- }
- }
-
- /* ioremap MMIO region */
- ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
- if (!ioaddr) {
- netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
- rc = -EIO;
- goto err_out_free_res_3;
- }
- tp->mmio_addr = ioaddr;
-
- if (!pci_is_pcie(pdev))
- netif_info(tp, probe, dev, "not PCI Express\n");
-
- /* Identify chip attached to board */
- rtl8169_get_mac_version(tp, dev, cfg->default_ver);
-
- rtl_init_rxcfg(tp);
-
- RTL_W16(IntrMask, 0x0000);
-
- rtl_hw_reset(tp);
-
- RTL_W16(IntrStatus, 0xffff);
-
- pci_set_master(pdev);
-
- /*
- * Pretend we are using VLANs; This bypasses a nasty bug where
- * Interrupts stop flowing on high load on 8110SCd controllers.
- */
- if (tp->mac_version == RTL_GIGA_MAC_VER_05)
- tp->cp_cmd |= RxVlan;
-
- rtl_init_mdio_ops(tp);
- rtl_init_pll_power_ops(tp);
-
- rtl8169_print_mac_version(tp);
-
- chipset = tp->mac_version;
- tp->txd_version = rtl_chip_infos[chipset].txd_version;
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
- RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
- RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
- if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
- tp->features |= RTL_FEATURE_WOL;
- if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
- tp->features |= RTL_FEATURE_WOL;
- tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
- RTL_W8(Cfg9346, Cfg9346_Lock);
-
- if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
- (RTL_R8(PHYstatus) & TBI_Enable)) {
- tp->set_speed = rtl8169_set_speed_tbi;
- tp->get_settings = rtl8169_gset_tbi;
- tp->phy_reset_enable = rtl8169_tbi_reset_enable;
- tp->phy_reset_pending = rtl8169_tbi_reset_pending;
- tp->link_ok = rtl8169_tbi_link_ok;
- tp->do_ioctl = rtl_tbi_ioctl;
- } else {
- tp->set_speed = rtl8169_set_speed_xmii;
- tp->get_settings = rtl8169_gset_xmii;
- tp->phy_reset_enable = rtl8169_xmii_reset_enable;
- tp->phy_reset_pending = rtl8169_xmii_reset_pending;
- tp->link_ok = rtl8169_xmii_link_ok;
- tp->do_ioctl = rtl_xmii_ioctl;
- }
-
- spin_lock_init(&tp->lock);
-
- /* Get MAC address */
- for (i = 0; i < MAC_ADDR_LEN; i++)
- dev->dev_addr[i] = RTL_R8(MAC0 + i);
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-
- SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
- dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
- dev->irq = pdev->irq;
- dev->base_addr = (unsigned long) ioaddr;
-
- netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
-
- /* don't enable SG, IP_CSUM and TSO by default - it might not work
- * properly for all devices */
- dev->features |= NETIF_F_RXCSUM |
- NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-
- dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
- NETIF_F_RXCSUM | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
- dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
- NETIF_F_HIGHDMA;
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_05)
- /* 8110SCd requires hardware Rx VLAN - disallow toggling */
- dev->hw_features &= ~NETIF_F_HW_VLAN_RX;
-
- tp->intr_mask = 0xffff;
- tp->hw_start = cfg->hw_start;
- tp->intr_event = cfg->intr_event;
- tp->napi_event = cfg->napi_event;
-
- init_timer(&tp->timer);
- tp->timer.data = (unsigned long) dev;
- tp->timer.function = rtl8169_phy_timer;
-
- tp->rtl_fw = RTL_FIRMWARE_UNKNOWN;
-
- rc = register_netdev(dev);
- if (rc < 0)
- goto err_out_msi_4;
-
- pci_set_drvdata(pdev, dev);
-
- netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
- rtl_chip_infos[chipset].name, dev->base_addr, dev->dev_addr,
- (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
- tp->mac_version == RTL_GIGA_MAC_VER_28 ||
- tp->mac_version == RTL_GIGA_MAC_VER_31) {
- rtl8168_driver_start(tp);
- }
-
- device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
-
- if (pci_dev_run_wake(pdev))
- pm_runtime_put_noidle(&pdev->dev);
-
- netif_carrier_off(dev);
-
-out:
- return rc;
-
-err_out_msi_4:
- rtl_disable_msi(pdev, tp);
- iounmap(ioaddr);
-err_out_free_res_3:
- pci_release_regions(pdev);
-err_out_mwi_2:
- pci_clear_mwi(pdev);
- pci_disable_device(pdev);
-err_out_free_dev_1:
- free_netdev(dev);
- goto out;
-}
-
-static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
- tp->mac_version == RTL_GIGA_MAC_VER_28 ||
- tp->mac_version == RTL_GIGA_MAC_VER_31) {
- rtl8168_driver_stop(tp);
- }
-
- cancel_delayed_work_sync(&tp->task);
-
- unregister_netdev(dev);
-
- rtl_release_firmware(tp);
-
- if (pci_dev_run_wake(pdev))
- pm_runtime_get_noresume(&pdev->dev);
-
- /* restore original MAC address */
- rtl_rar_set(tp, dev->perm_addr);
-
- rtl_disable_msi(pdev, tp);
- rtl8169_release_board(pdev, dev, tp->mmio_addr);
- pci_set_drvdata(pdev, NULL);
-}
-
-static void rtl_request_uncached_firmware(struct rtl8169_private *tp)
-{
- struct rtl_fw *rtl_fw;
- const char *name;
- int rc = -ENOMEM;
-
- name = rtl_lookup_firmware_name(tp);
- if (!name)
- goto out_no_firmware;
-
- rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
- if (!rtl_fw)
- goto err_warn;
-
- rc = request_firmware(&rtl_fw->fw, name, &tp->pci_dev->dev);
- if (rc < 0)
- goto err_free;
-
- rc = rtl_check_firmware(tp, rtl_fw);
- if (rc < 0)
- goto err_release_firmware;
-
- tp->rtl_fw = rtl_fw;
-out:
- return;
-
-err_release_firmware:
- release_firmware(rtl_fw->fw);
-err_free:
- kfree(rtl_fw);
-err_warn:
- netif_warn(tp, ifup, tp->dev, "unable to load firmware patch %s (%d)\n",
- name, rc);
-out_no_firmware:
- tp->rtl_fw = NULL;
- goto out;
-}
-
-static void rtl_request_firmware(struct rtl8169_private *tp)
-{
- if (IS_ERR(tp->rtl_fw))
- rtl_request_uncached_firmware(tp);
-}
-
-static int rtl8169_open(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct pci_dev *pdev = tp->pci_dev;
- int retval = -ENOMEM;
-
- pm_runtime_get_sync(&pdev->dev);
-
- /*
- * Rx and Tx desscriptors needs 256 bytes alignment.
- * dma_alloc_coherent provides more.
- */
- tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
- &tp->TxPhyAddr, GFP_KERNEL);
- if (!tp->TxDescArray)
- goto err_pm_runtime_put;
-
- tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
- &tp->RxPhyAddr, GFP_KERNEL);
- if (!tp->RxDescArray)
- goto err_free_tx_0;
-
- retval = rtl8169_init_ring(dev);
- if (retval < 0)
- goto err_free_rx_1;
-
- INIT_DELAYED_WORK(&tp->task, NULL);
-
- smp_mb();
-
- rtl_request_firmware(tp);
-
- retval = request_irq(dev->irq, rtl8169_interrupt,
- (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
- dev->name, dev);
- if (retval < 0)
- goto err_release_fw_2;
-
- napi_enable(&tp->napi);
-
- rtl8169_init_phy(dev, tp);
-
- rtl8169_set_features(dev, dev->features);
-
- rtl_pll_power_up(tp);
-
- rtl_hw_start(dev);
-
- tp->saved_wolopts = 0;
- pm_runtime_put_noidle(&pdev->dev);
-
- rtl8169_check_link_status(dev, tp, ioaddr);
-out:
- return retval;
-
-err_release_fw_2:
- rtl_release_firmware(tp);
- rtl8169_rx_clear(tp);
-err_free_rx_1:
- dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
- tp->RxPhyAddr);
- tp->RxDescArray = NULL;
-err_free_tx_0:
- dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
- tp->TxPhyAddr);
- tp->TxDescArray = NULL;
-err_pm_runtime_put:
- pm_runtime_put_noidle(&pdev->dev);
- goto out;
-}
-
-static void rtl_rx_close(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- RTL_W32(RxConfig, RTL_R32(RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
-}
-
-static void rtl8169_hw_reset(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- /* Disable interrupts */
- rtl8169_irq_mask_and_ack(ioaddr);
-
- rtl_rx_close(tp);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
- tp->mac_version == RTL_GIGA_MAC_VER_28 ||
- tp->mac_version == RTL_GIGA_MAC_VER_31) {
- while (RTL_R8(TxPoll) & NPQ)
- udelay(20);
- } else if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
- while (!(RTL_R32(TxConfig) & TXCFG_EMPTY))
- udelay(100);
- } else {
- RTL_W8(ChipCmd, RTL_R8(ChipCmd) | StopReq);
- udelay(100);
- }
-
- rtl_hw_reset(tp);
-}
-
-static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
-{
- void __iomem *ioaddr = tp->mmio_addr;
-
- /* Set DMA burst size and Interframe Gap Time */
- RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
- (InterFrameGap << TxInterFrameGapShift));
-}
-
-static void rtl_hw_start(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- tp->hw_start(dev);
-
- netif_start_queue(dev);
-}
-
-static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
- void __iomem *ioaddr)
-{
- /*
- * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
- * register to be written before TxDescAddrLow to work.
- * Switching from MMIO to I/O access fixes the issue as well.
- */
- RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
- RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
- RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
- RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
-}
-
-static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
-{
- u16 cmd;
-
- cmd = RTL_R16(CPlusCmd);
- RTL_W16(CPlusCmd, cmd);
- return cmd;
-}
-
-static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
-{
- /* Low hurts. Let's disable the filtering. */
- RTL_W16(RxMaxSize, rx_buf_sz + 1);
-}
-
-static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
-{
- static const struct rtl_cfg2_info {
- u32 mac_version;
- u32 clk;
- u32 val;
- } cfg2_info [] = {
- { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
- { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
- { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
- { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
- };
- const struct rtl_cfg2_info *p = cfg2_info;
- unsigned int i;
- u32 clk;
-
- clk = RTL_R8(Config2) & PCI_Clock_66MHz;
- for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
- if ((p->mac_version == mac_version) && (p->clk == clk)) {
- RTL_W32(0x7c, p->val);
- break;
- }
- }
-}
-
-static void rtl_hw_start_8169(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct pci_dev *pdev = tp->pci_dev;
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
- pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
- }
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
- if (tp->mac_version == RTL_GIGA_MAC_VER_01 ||
- tp->mac_version == RTL_GIGA_MAC_VER_02 ||
- tp->mac_version == RTL_GIGA_MAC_VER_03 ||
- tp->mac_version == RTL_GIGA_MAC_VER_04)
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
-
- rtl_init_rxcfg(tp);
-
- RTL_W8(EarlyTxThres, NoEarlyTx);
-
- rtl_set_rx_max_size(ioaddr, rx_buf_sz);
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_01 ||
- tp->mac_version == RTL_GIGA_MAC_VER_02 ||
- tp->mac_version == RTL_GIGA_MAC_VER_03 ||
- tp->mac_version == RTL_GIGA_MAC_VER_04)
- rtl_set_rx_tx_config_registers(tp);
-
- tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
- tp->mac_version == RTL_GIGA_MAC_VER_03) {
- dprintk("Set MAC Reg C+CR Offset 0xE0. "
- "Bit-3 and bit-14 MUST be 1\n");
- tp->cp_cmd |= (1 << 14);
- }
-
- RTL_W16(CPlusCmd, tp->cp_cmd);
-
- rtl8169_set_magic_reg(ioaddr, tp->mac_version);
-
- /*
- * Undocumented corner. Supposedly:
- * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
- */
- RTL_W16(IntrMitigate, 0x0000);
-
- rtl_set_rx_tx_desc_registers(tp, ioaddr);
-
- if (tp->mac_version != RTL_GIGA_MAC_VER_01 &&
- tp->mac_version != RTL_GIGA_MAC_VER_02 &&
- tp->mac_version != RTL_GIGA_MAC_VER_03 &&
- tp->mac_version != RTL_GIGA_MAC_VER_04) {
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
- rtl_set_rx_tx_config_registers(tp);
- }
-
- RTL_W8(Cfg9346, Cfg9346_Lock);
-
- /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
- RTL_R8(IntrMask);
-
- RTL_W32(RxMissed, 0);
-
- rtl_set_rx_mode(dev);
-
- /* no early-rx interrupts */
- RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
-
- /* Enable all known interrupts by setting the interrupt mask. */
- RTL_W16(IntrMask, tp->intr_event);
-}
-
-static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
-{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
- ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
- pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
- }
-}
-
-static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
-{
- u32 csi;
-
- csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
- rtl_csi_write(ioaddr, 0x070c, csi | bits);
-}
-
-static void rtl_csi_access_enable_1(void __iomem *ioaddr)
-{
- rtl_csi_access_enable(ioaddr, 0x17000000);
-}
-
-static void rtl_csi_access_enable_2(void __iomem *ioaddr)
-{
- rtl_csi_access_enable(ioaddr, 0x27000000);
-}
-
-struct ephy_info {
- unsigned int offset;
- u16 mask;
- u16 bits;
-};
-
-static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
-{
- u16 w;
-
- while (len-- > 0) {
- w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
- rtl_ephy_write(ioaddr, e->offset, w);
- e++;
- }
-}
-
-static void rtl_disable_clock_request(struct pci_dev *pdev)
-{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
- ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
- pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
- }
-}
-
-static void rtl_enable_clock_request(struct pci_dev *pdev)
-{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
- ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
- pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
- }
-}
-
-#define R8168_CPCMD_QUIRK_MASK (\
- EnableBist | \
- Mac_dbgo_oe | \
- Force_half_dup | \
- Force_rxflow_en | \
- Force_txflow_en | \
- Cxpl_dbg_sel | \
- ASF | \
- PktCntrDisable | \
- Mac_dbgo_sel)
-
-static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
-
- rtl_tx_performance_tweak(pdev,
- (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
-}
-
-static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_hw_start_8168bb(ioaddr, pdev);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
-}
-
-static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
-
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- rtl_disable_clock_request(pdev);
-
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
-}
-
-static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168cp[] = {
- { 0x01, 0, 0x0001 },
- { 0x02, 0x0800, 0x1000 },
- { 0x03, 0, 0x0042 },
- { 0x06, 0x0080, 0x0000 },
- { 0x07, 0, 0x2000 }
- };
-
- rtl_csi_access_enable_2(ioaddr);
-
- rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
-
- __rtl_hw_start_8168cp(ioaddr, pdev);
-}
-
-static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_2(ioaddr);
-
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
-}
-
-static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_2(ioaddr);
-
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-
- /* Magic. */
- RTL_W8(DBG_REG, 0x20);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
-}
-
-static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168c_1[] = {
- { 0x02, 0x0800, 0x1000 },
- { 0x03, 0, 0x0002 },
- { 0x06, 0x0080, 0x0000 }
- };
-
- rtl_csi_access_enable_2(ioaddr);
-
- RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
-
- rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
-
- __rtl_hw_start_8168cp(ioaddr, pdev);
-}
-
-static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168c_2[] = {
- { 0x01, 0, 0x0001 },
- { 0x03, 0x0400, 0x0220 }
- };
-
- rtl_csi_access_enable_2(ioaddr);
-
- rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
-
- __rtl_hw_start_8168cp(ioaddr, pdev);
-}
-
-static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_hw_start_8168c_2(ioaddr, pdev);
-}
-
-static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_2(ioaddr);
-
- __rtl_hw_start_8168cp(ioaddr, pdev);
-}
-
-static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_2(ioaddr);
-
- rtl_disable_clock_request(pdev);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
-}
-
-static void rtl_hw_start_8168dp(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_1(ioaddr);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_disable_clock_request(pdev);
-}
-
-static void rtl_hw_start_8168d_4(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168d_4[] = {
- { 0x0b, ~0, 0x48 },
- { 0x19, 0x20, 0x50 },
- { 0x0c, ~0, 0x20 }
- };
- int i;
-
- rtl_csi_access_enable_1(ioaddr);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- for (i = 0; i < ARRAY_SIZE(e_info_8168d_4); i++) {
- const struct ephy_info *e = e_info_8168d_4 + i;
- u16 w;
-
- w = rtl_ephy_read(ioaddr, e->offset);
- rtl_ephy_write(ioaddr, 0x03, (w & e->mask) | e->bits);
- }
-
- rtl_enable_clock_request(pdev);
-}
-
-static void rtl_hw_start_8168e_1(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168e_1[] = {
- { 0x00, 0x0200, 0x0100 },
- { 0x00, 0x0000, 0x0004 },
- { 0x06, 0x0002, 0x0001 },
- { 0x06, 0x0000, 0x0030 },
- { 0x07, 0x0000, 0x2000 },
- { 0x00, 0x0000, 0x0020 },
- { 0x03, 0x5800, 0x2000 },
- { 0x03, 0x0000, 0x0001 },
- { 0x01, 0x0800, 0x1000 },
- { 0x07, 0x0000, 0x4000 },
- { 0x1e, 0x0000, 0x2000 },
- { 0x19, 0xffff, 0xfe6c },
- { 0x0a, 0x0000, 0x0040 }
- };
-
- rtl_csi_access_enable_2(ioaddr);
-
- rtl_ephy_init(ioaddr, e_info_8168e_1, ARRAY_SIZE(e_info_8168e_1));
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_disable_clock_request(pdev);
-
- /* Reset tx FIFO pointer */
- RTL_W32(MISC, RTL_R32(MISC) | TXPLA_RST);
- RTL_W32(MISC, RTL_R32(MISC) & ~TXPLA_RST);
-
- RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en);
-}
-
-static void rtl_hw_start_8168e_2(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8168e_2[] = {
- { 0x09, 0x0000, 0x0080 },
- { 0x19, 0x0000, 0x0224 }
- };
-
- rtl_csi_access_enable_1(ioaddr);
-
- rtl_ephy_init(ioaddr, e_info_8168e_2, ARRAY_SIZE(e_info_8168e_2));
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- rtl_eri_write(ioaddr, 0xc0, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0xb8, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0xc8, ERIAR_MASK_1111, 0x00100002, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0xe8, ERIAR_MASK_1111, 0x00100006, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0xcc, ERIAR_MASK_1111, 0x00000050, ERIAR_EXGMAC);
- rtl_eri_write(ioaddr, 0xd0, ERIAR_MASK_1111, 0x07ff0060, ERIAR_EXGMAC);
- rtl_w1w0_eri(ioaddr, 0x1b0, ERIAR_MASK_0001, 0x10, 0x00, ERIAR_EXGMAC);
- rtl_w1w0_eri(ioaddr, 0x0d4, ERIAR_MASK_0011, 0x0c00, 0xff00,
- ERIAR_EXGMAC);
-
- RTL_W8(MaxTxPacketSize, 0x27);
-
- rtl_disable_clock_request(pdev);
-
- RTL_W32(TxConfig, RTL_R32(TxConfig) | TXCFG_AUTO_FIFO);
- RTL_W8(MCU, RTL_R8(MCU) & ~NOW_IS_OOB);
-
- /* Adjust EEE LED frequency */
- RTL_W8(EEE_LED, RTL_R8(EEE_LED) & ~0x07);
-
- RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN);
- RTL_W32(MISC, RTL_R32(MISC) | PWM_EN);
- RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en);
-}
-
-static void rtl_hw_start_8168(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct pci_dev *pdev = tp->pci_dev;
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_set_rx_max_size(ioaddr, rx_buf_sz);
-
- tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
-
- RTL_W16(CPlusCmd, tp->cp_cmd);
-
- RTL_W16(IntrMitigate, 0x5151);
-
- /* Work around for RxFIFO overflow. */
- if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
- tp->mac_version == RTL_GIGA_MAC_VER_22) {
- tp->intr_event |= RxFIFOOver | PCSTimeout;
- tp->intr_event &= ~RxOverflow;
- }
-
- rtl_set_rx_tx_desc_registers(tp, ioaddr);
-
- rtl_set_rx_mode(dev);
-
- RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
- (InterFrameGap << TxInterFrameGapShift));
-
- RTL_R8(IntrMask);
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_11:
- rtl_hw_start_8168bb(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_17:
- rtl_hw_start_8168bef(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_18:
- rtl_hw_start_8168cp_1(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_19:
- rtl_hw_start_8168c_1(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_20:
- rtl_hw_start_8168c_2(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_21:
- rtl_hw_start_8168c_3(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_22:
- rtl_hw_start_8168c_4(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_23:
- rtl_hw_start_8168cp_2(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_24:
- rtl_hw_start_8168cp_3(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_25:
- case RTL_GIGA_MAC_VER_26:
- case RTL_GIGA_MAC_VER_27:
- rtl_hw_start_8168d(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_28:
- rtl_hw_start_8168d_4(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_31:
- rtl_hw_start_8168dp(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_32:
- case RTL_GIGA_MAC_VER_33:
- rtl_hw_start_8168e_1(ioaddr, pdev);
- break;
- case RTL_GIGA_MAC_VER_34:
- rtl_hw_start_8168e_2(ioaddr, pdev);
- break;
-
- default:
- printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
- dev->name, tp->mac_version);
- break;
- }
-
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
-
- RTL_W8(Cfg9346, Cfg9346_Lock);
-
- RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
-
- RTL_W16(IntrMask, tp->intr_event);
-}
-
-#define R810X_CPCMD_QUIRK_MASK (\
- EnableBist | \
- Mac_dbgo_oe | \
- Force_half_dup | \
- Force_rxflow_en | \
- Force_txflow_en | \
- Cxpl_dbg_sel | \
- ASF | \
- PktCntrDisable | \
- Mac_dbgo_sel)
-
-static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8102e_1[] = {
- { 0x01, 0, 0x6e65 },
- { 0x02, 0, 0x091f },
- { 0x03, 0, 0xc2f9 },
- { 0x06, 0, 0xafb5 },
- { 0x07, 0, 0x0e00 },
- { 0x19, 0, 0xec80 },
- { 0x01, 0, 0x2e65 },
- { 0x01, 0, 0x6e65 }
- };
- u8 cfg1;
-
- rtl_csi_access_enable_2(ioaddr);
-
- RTL_W8(DBG_REG, FIX_NAK_1);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W8(Config1,
- LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-
- cfg1 = RTL_R8(Config1);
- if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
- RTL_W8(Config1, cfg1 & ~LEDS0);
-
- rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
-}
-
-static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_csi_access_enable_2(ioaddr);
-
- rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
- RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
- RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
-}
-
-static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_hw_start_8102e_2(ioaddr, pdev);
-
- rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
-}
-
-static void rtl_hw_start_8105e_1(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- static const struct ephy_info e_info_8105e_1[] = {
- { 0x07, 0, 0x4000 },
- { 0x19, 0, 0x0200 },
- { 0x19, 0, 0x0020 },
- { 0x1e, 0, 0x2000 },
- { 0x03, 0, 0x0001 },
- { 0x19, 0, 0x0100 },
- { 0x19, 0, 0x0004 },
- { 0x0a, 0, 0x0020 }
- };
-
- /* Force LAN exit from ASPM if Rx/Tx are not idle */
- RTL_W32(FuncEvent, RTL_R32(FuncEvent) | 0x002800);
-
- /* Disable Early Tally Counter */
- RTL_W32(FuncEvent, RTL_R32(FuncEvent) & ~0x010000);
-
- RTL_W8(MCU, RTL_R8(MCU) | EN_NDP | EN_OOB_RESET);
- RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN);
-
- rtl_ephy_init(ioaddr, e_info_8105e_1, ARRAY_SIZE(e_info_8105e_1));
-}
-
-static void rtl_hw_start_8105e_2(void __iomem *ioaddr, struct pci_dev *pdev)
-{
- rtl_hw_start_8105e_1(ioaddr, pdev);
- rtl_ephy_write(ioaddr, 0x1e, rtl_ephy_read(ioaddr, 0x1e) | 0x8000);
-}
-
-static void rtl_hw_start_8101(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- struct pci_dev *pdev = tp->pci_dev;
-
- if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
- tp->mac_version == RTL_GIGA_MAC_VER_16) {
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
- PCI_EXP_DEVCTL_NOSNOOP_EN);
- }
- }
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
-
- switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_07:
- rtl_hw_start_8102e_1(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_08:
- rtl_hw_start_8102e_3(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_09:
- rtl_hw_start_8102e_2(ioaddr, pdev);
- break;
-
- case RTL_GIGA_MAC_VER_29:
- rtl_hw_start_8105e_1(ioaddr, pdev);
- break;
- case RTL_GIGA_MAC_VER_30:
- rtl_hw_start_8105e_2(ioaddr, pdev);
- break;
- }
-
- RTL_W8(Cfg9346, Cfg9346_Lock);
-
- RTL_W8(MaxTxPacketSize, TxPacketMax);
-
- rtl_set_rx_max_size(ioaddr, rx_buf_sz);
-
- tp->cp_cmd &= ~R810X_CPCMD_QUIRK_MASK;
- RTL_W16(CPlusCmd, tp->cp_cmd);
-
- RTL_W16(IntrMitigate, 0x0000);
-
- rtl_set_rx_tx_desc_registers(tp, ioaddr);
-
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
- rtl_set_rx_tx_config_registers(tp);
-
- RTL_R8(IntrMask);
-
- rtl_set_rx_mode(dev);
-
- RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
-
- RTL_W16(IntrMask, tp->intr_event);
-}
-
-static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
-{
- if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
- return -EINVAL;
-
- dev->mtu = new_mtu;
- netdev_update_features(dev);
-
- return 0;
-}
-
-static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
-{
- desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
- desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
-}
-
-static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
- void **data_buff, struct RxDesc *desc)
-{
- dma_unmap_single(&tp->pci_dev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
- DMA_FROM_DEVICE);
-
- kfree(*data_buff);
- *data_buff = NULL;
- rtl8169_make_unusable_by_asic(desc);
-}
-
-static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
-{
- u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
-
- desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
-}
-
-static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
- u32 rx_buf_sz)
-{
- desc->addr = cpu_to_le64(mapping);
- wmb();
- rtl8169_mark_to_asic(desc, rx_buf_sz);
-}
-
-static inline void *rtl8169_align(void *data)
-{
- return (void *)ALIGN((long)data, 16);
-}
-
-static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
- struct RxDesc *desc)
-{
- void *data;
- dma_addr_t mapping;
- struct device *d = &tp->pci_dev->dev;
- struct net_device *dev = tp->dev;
- int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
-
- data = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
- if (!data)
- return NULL;
-
- if (rtl8169_align(data) != data) {
- kfree(data);
- data = kmalloc_node(rx_buf_sz + 15, GFP_KERNEL, node);
- if (!data)
- return NULL;
- }
-
- mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz,
- DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(d, mapping))) {
- if (net_ratelimit())
- netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n");
- goto err_out;
- }
-
- rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
- return data;
-
-err_out:
- kfree(data);
- return NULL;
-}
-
-static void rtl8169_rx_clear(struct rtl8169_private *tp)
-{
- unsigned int i;
-
- for (i = 0; i < NUM_RX_DESC; i++) {
- if (tp->Rx_databuff[i]) {
- rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
- tp->RxDescArray + i);
- }
- }
-}
-
-static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
-{
- desc->opts1 |= cpu_to_le32(RingEnd);
-}
-
-static int rtl8169_rx_fill(struct rtl8169_private *tp)
-{
- unsigned int i;
-
- for (i = 0; i < NUM_RX_DESC; i++) {
- void *data;
-
- if (tp->Rx_databuff[i])
- continue;
-
- data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
- if (!data) {
- rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
- goto err_out;
- }
- tp->Rx_databuff[i] = data;
- }
-
- rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
- return 0;
-
-err_out:
- rtl8169_rx_clear(tp);
- return -ENOMEM;
-}
-
-static int rtl8169_init_ring(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl8169_init_ring_indexes(tp);
-
- memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
- memset(tp->Rx_databuff, 0x0, NUM_RX_DESC * sizeof(void *));
-
- return rtl8169_rx_fill(tp);
-}
-
-static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
- struct TxDesc *desc)
-{
- unsigned int len = tx_skb->len;
-
- dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
-
- desc->opts1 = 0x00;
- desc->opts2 = 0x00;
- desc->addr = 0x00;
- tx_skb->len = 0;
-}
-
-static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
- unsigned int n)
-{
- unsigned int i;
-
- for (i = 0; i < n; i++) {
- unsigned int entry = (start + i) % NUM_TX_DESC;
- struct ring_info *tx_skb = tp->tx_skb + entry;
- unsigned int len = tx_skb->len;
-
- if (len) {
- struct sk_buff *skb = tx_skb->skb;
-
- rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
- tp->TxDescArray + entry);
- if (skb) {
- tp->dev->stats.tx_dropped++;
- dev_kfree_skb(skb);
- tx_skb->skb = NULL;
- }
- }
- }
-}
-
-static void rtl8169_tx_clear(struct rtl8169_private *tp)
-{
- rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
- tp->cur_tx = tp->dirty_tx = 0;
-}
-
-static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- PREPARE_DELAYED_WORK(&tp->task, task);
- schedule_delayed_work(&tp->task, 4);
-}
-
-static void rtl8169_wait_for_quiescence(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
-
- synchronize_irq(dev->irq);
-
- /* Wait for any pending NAPI task to complete */
- napi_disable(&tp->napi);
-
- rtl8169_irq_mask_and_ack(ioaddr);
-
- tp->intr_mask = 0xffff;
- RTL_W16(IntrMask, tp->intr_event);
- napi_enable(&tp->napi);
-}
-
-static void rtl8169_reinit_task(struct work_struct *work)
-{
- struct rtl8169_private *tp =
- container_of(work, struct rtl8169_private, task.work);
- struct net_device *dev = tp->dev;
- int ret;
-
- rtnl_lock();
-
- if (!netif_running(dev))
- goto out_unlock;
-
- rtl8169_wait_for_quiescence(dev);
- rtl8169_close(dev);
-
- ret = rtl8169_open(dev);
- if (unlikely(ret < 0)) {
- if (net_ratelimit())
- netif_err(tp, drv, dev,
- "reinit failure (status = %d). Rescheduling\n",
- ret);
- rtl8169_schedule_work(dev, rtl8169_reinit_task);
- }
-
-out_unlock:
- rtnl_unlock();
-}
-
-static void rtl8169_reset_task(struct work_struct *work)
-{
- struct rtl8169_private *tp =
- container_of(work, struct rtl8169_private, task.work);
- struct net_device *dev = tp->dev;
- int i;
-
- rtnl_lock();
-
- if (!netif_running(dev))
- goto out_unlock;
-
- rtl8169_wait_for_quiescence(dev);
-
- for (i = 0; i < NUM_RX_DESC; i++)
- rtl8169_mark_to_asic(tp->RxDescArray + i, rx_buf_sz);
-
- rtl8169_tx_clear(tp);
-
- rtl8169_hw_reset(tp);
- rtl_hw_start(dev);
- netif_wake_queue(dev);
- rtl8169_check_link_status(dev, tp, tp->mmio_addr);
-
-out_unlock:
- rtnl_unlock();
-}
-
-static void rtl8169_tx_timeout(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl8169_hw_reset(tp);
-
- /* Let's wait a bit while any (async) irq lands on */
- rtl8169_schedule_work(dev, rtl8169_reset_task);
-}
-
-static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
- u32 *opts)
-{
- struct skb_shared_info *info = skb_shinfo(skb);
- unsigned int cur_frag, entry;
- struct TxDesc * uninitialized_var(txd);
- struct device *d = &tp->pci_dev->dev;
-
- entry = tp->cur_tx;
- for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
- skb_frag_t *frag = info->frags + cur_frag;
- dma_addr_t mapping;
- u32 status, len;
- void *addr;
-
- entry = (entry + 1) % NUM_TX_DESC;
-
- txd = tp->TxDescArray + entry;
- len = frag->size;
- addr = ((void *) page_address(frag->page)) + frag->page_offset;
- mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(d, mapping))) {
- if (net_ratelimit())
- netif_err(tp, drv, tp->dev,
- "Failed to map TX fragments DMA!\n");
- goto err_out;
- }
-
- /* Anti gcc 2.95.3 bugware (sic) */
- status = opts[0] | len |
- (RingEnd * !((entry + 1) % NUM_TX_DESC));
-
- txd->opts1 = cpu_to_le32(status);
- txd->opts2 = cpu_to_le32(opts[1]);
- txd->addr = cpu_to_le64(mapping);
-
- tp->tx_skb[entry].len = len;
- }
-
- if (cur_frag) {
- tp->tx_skb[entry].skb = skb;
- txd->opts1 |= cpu_to_le32(LastFrag);
- }
-
- return cur_frag;
-
-err_out:
- rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
- return -EIO;
-}
-
-static inline void rtl8169_tso_csum(struct rtl8169_private *tp,
- struct sk_buff *skb, u32 *opts)
-{
- const struct rtl_tx_desc_info *info = tx_desc_info + tp->txd_version;
- u32 mss = skb_shinfo(skb)->gso_size;
- int offset = info->opts_offset;
-
- if (mss) {
- opts[0] |= TD_LSO;
- opts[offset] |= min(mss, TD_MSS_MAX) << info->mss_shift;
- } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- const struct iphdr *ip = ip_hdr(skb);
-
- if (ip->protocol == IPPROTO_TCP)
- opts[offset] |= info->checksum.tcp;
- else if (ip->protocol == IPPROTO_UDP)
- opts[offset] |= info->checksum.udp;
- else
- WARN_ON_ONCE(1);
- }
-}
-
-static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- unsigned int entry = tp->cur_tx % NUM_TX_DESC;
- struct TxDesc *txd = tp->TxDescArray + entry;
- void __iomem *ioaddr = tp->mmio_addr;
- struct device *d = &tp->pci_dev->dev;
- dma_addr_t mapping;
- u32 status, len;
- u32 opts[2];
- int frags;
-
- if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
- netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
- goto err_stop_0;
- }
-
- if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
- goto err_stop_0;
-
- len = skb_headlen(skb);
- mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(d, mapping))) {
- if (net_ratelimit())
- netif_err(tp, drv, dev, "Failed to map TX DMA!\n");
- goto err_dma_0;
- }
-
- tp->tx_skb[entry].len = len;
- txd->addr = cpu_to_le64(mapping);
-
- opts[1] = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
- opts[0] = DescOwn;
-
- rtl8169_tso_csum(tp, skb, opts);
-
- frags = rtl8169_xmit_frags(tp, skb, opts);
- if (frags < 0)
- goto err_dma_1;
- else if (frags)
- opts[0] |= FirstFrag;
- else {
- opts[0] |= FirstFrag | LastFrag;
- tp->tx_skb[entry].skb = skb;
- }
-
- txd->opts2 = cpu_to_le32(opts[1]);
-
- wmb();
-
- /* Anti gcc 2.95.3 bugware (sic) */
- status = opts[0] | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
- txd->opts1 = cpu_to_le32(status);
-
- tp->cur_tx += frags + 1;
-
- wmb();
-
- RTL_W8(TxPoll, NPQ);
-
- if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
- netif_stop_queue(dev);
- smp_rmb();
- if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
- netif_wake_queue(dev);
- }
-
- return NETDEV_TX_OK;
-
-err_dma_1:
- rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
-err_dma_0:
- dev_kfree_skb(skb);
- dev->stats.tx_dropped++;
- return NETDEV_TX_OK;
-
-err_stop_0:
- netif_stop_queue(dev);
- dev->stats.tx_dropped++;
- return NETDEV_TX_BUSY;
-}
-
-static void rtl8169_pcierr_interrupt(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct pci_dev *pdev = tp->pci_dev;
- u16 pci_status, pci_cmd;
-
- pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
- pci_read_config_word(pdev, PCI_STATUS, &pci_status);
-
- netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
- pci_cmd, pci_status);
-
- /*
- * The recovery sequence below admits a very elaborated explanation:
- * - it seems to work;
- * - I did not see what else could be done;
- * - it makes iop3xx happy.
- *
- * Feel free to adjust to your needs.
- */
- if (pdev->broken_parity_status)
- pci_cmd &= ~PCI_COMMAND_PARITY;
- else
- pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
-
- pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
-
- pci_write_config_word(pdev, PCI_STATUS,
- pci_status & (PCI_STATUS_DETECTED_PARITY |
- PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
- PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
-
- /* The infamous DAC f*ckup only happens at boot time */
- if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
- void __iomem *ioaddr = tp->mmio_addr;
-
- netif_info(tp, intr, dev, "disabling PCI DAC\n");
- tp->cp_cmd &= ~PCIDAC;
- RTL_W16(CPlusCmd, tp->cp_cmd);
- dev->features &= ~NETIF_F_HIGHDMA;
- }
-
- rtl8169_hw_reset(tp);
-
- rtl8169_schedule_work(dev, rtl8169_reinit_task);
-}
-
-static void rtl8169_tx_interrupt(struct net_device *dev,
- struct rtl8169_private *tp,
- void __iomem *ioaddr)
-{
- unsigned int dirty_tx, tx_left;
-
- dirty_tx = tp->dirty_tx;
- smp_rmb();
- tx_left = tp->cur_tx - dirty_tx;
-
- while (tx_left > 0) {
- unsigned int entry = dirty_tx % NUM_TX_DESC;
- struct ring_info *tx_skb = tp->tx_skb + entry;
- u32 status;
-
- rmb();
- status = le32_to_cpu(tp->TxDescArray[entry].opts1);
- if (status & DescOwn)
- break;
-
- rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
- tp->TxDescArray + entry);
- if (status & LastFrag) {
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += tx_skb->skb->len;
- dev_kfree_skb(tx_skb->skb);
- tx_skb->skb = NULL;
- }
- dirty_tx++;
- tx_left--;
- }
-
- if (tp->dirty_tx != dirty_tx) {
- tp->dirty_tx = dirty_tx;
- smp_wmb();
- if (netif_queue_stopped(dev) &&
- (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
- netif_wake_queue(dev);
- }
- /*
- * 8168 hack: TxPoll requests are lost when the Tx packets are
- * too close. Let's kick an extra TxPoll request when a burst
- * of start_xmit activity is detected (if it is not detected,
- * it is slow enough). -- FR
- */
- smp_rmb();
- if (tp->cur_tx != dirty_tx)
- RTL_W8(TxPoll, NPQ);
- }
-}
-
-static inline int rtl8169_fragmented_frame(u32 status)
-{
- return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
-}
-
-static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
-{
- u32 status = opts1 & RxProtoMask;
-
- if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
- ((status == RxProtoUDP) && !(opts1 & UDPFail)))
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- else
- skb_checksum_none_assert(skb);
-}
-
-static struct sk_buff *rtl8169_try_rx_copy(void *data,
- struct rtl8169_private *tp,
- int pkt_size,
- dma_addr_t addr)
-{
- struct sk_buff *skb;
- struct device *d = &tp->pci_dev->dev;
-
- data = rtl8169_align(data);
- dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
- prefetch(data);
- skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
- if (skb)
- memcpy(skb->data, data, pkt_size);
- dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
-
- return skb;
-}
-
-static int rtl8169_rx_interrupt(struct net_device *dev,
- struct rtl8169_private *tp,
- void __iomem *ioaddr, u32 budget)
-{
- unsigned int cur_rx, rx_left;
- unsigned int count;
-
- cur_rx = tp->cur_rx;
- rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
- rx_left = min(rx_left, budget);
-
- for (; rx_left > 0; rx_left--, cur_rx++) {
- unsigned int entry = cur_rx % NUM_RX_DESC;
- struct RxDesc *desc = tp->RxDescArray + entry;
- u32 status;
-
- rmb();
- status = le32_to_cpu(desc->opts1);
-
- if (status & DescOwn)
- break;
- if (unlikely(status & RxRES)) {
- netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
- status);
- dev->stats.rx_errors++;
- if (status & (RxRWT | RxRUNT))
- dev->stats.rx_length_errors++;
- if (status & RxCRC)
- dev->stats.rx_crc_errors++;
- if (status & RxFOVF) {
- rtl8169_schedule_work(dev, rtl8169_reset_task);
- dev->stats.rx_fifo_errors++;
- }
- rtl8169_mark_to_asic(desc, rx_buf_sz);
- } else {
- struct sk_buff *skb;
- dma_addr_t addr = le64_to_cpu(desc->addr);
- int pkt_size = (status & 0x00001FFF) - 4;
-
- /*
- * The driver does not support incoming fragmented
- * frames. They are seen as a symptom of over-mtu
- * sized frames.
- */
- if (unlikely(rtl8169_fragmented_frame(status))) {
- dev->stats.rx_dropped++;
- dev->stats.rx_length_errors++;
- rtl8169_mark_to_asic(desc, rx_buf_sz);
- continue;
- }
-
- skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
- tp, pkt_size, addr);
- rtl8169_mark_to_asic(desc, rx_buf_sz);
- if (!skb) {
- dev->stats.rx_dropped++;
- continue;
- }
-
- rtl8169_rx_csum(skb, status);
- skb_put(skb, pkt_size);
- skb->protocol = eth_type_trans(skb, dev);
-
- rtl8169_rx_vlan_tag(desc, skb);
-
- napi_gro_receive(&tp->napi, skb);
-
- dev->stats.rx_bytes += pkt_size;
- dev->stats.rx_packets++;
- }
-
- /* Work around for AMD plateform. */
- if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
- (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
- desc->opts2 = 0;
- cur_rx++;
- }
- }
-
- count = cur_rx - tp->cur_rx;
- tp->cur_rx = cur_rx;
-
- tp->dirty_rx += count;
-
- return count;
-}
-
-static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
-{
- struct net_device *dev = dev_instance;
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- int handled = 0;
- int status;
-
- /* loop handling interrupts until we have no new ones or
- * we hit a invalid/hotplug case.
- */
- status = RTL_R16(IntrStatus);
- while (status && status != 0xffff) {
- handled = 1;
-
- /* Handle all of the error cases first. These will reset
- * the chip, so just exit the loop.
- */
- if (unlikely(!netif_running(dev))) {
- rtl8169_hw_reset(tp);
- break;
- }
-
- if (unlikely(status & RxFIFOOver)) {
- switch (tp->mac_version) {
- /* Work around for rx fifo overflow */
- case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_26:
- netif_stop_queue(dev);
- rtl8169_tx_timeout(dev);
- goto done;
- /* Testers needed. */
- case RTL_GIGA_MAC_VER_17:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- /* Experimental science. Pktgen proof. */
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_25:
- if (status == RxFIFOOver)
- goto done;
- break;
- default:
- break;
- }
- }
-
- if (unlikely(status & SYSErr)) {
- rtl8169_pcierr_interrupt(dev);
- break;
- }
-
- if (status & LinkChg)
- __rtl8169_check_link_status(dev, tp, ioaddr, true);
-
- /* We need to see the lastest version of tp->intr_mask to
- * avoid ignoring an MSI interrupt and having to wait for
- * another event which may never come.
- */
- smp_rmb();
- if (status & tp->intr_mask & tp->napi_event) {
- RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
- tp->intr_mask = ~tp->napi_event;
-
- if (likely(napi_schedule_prep(&tp->napi)))
- __napi_schedule(&tp->napi);
- else
- netif_info(tp, intr, dev,
- "interrupt %04x in poll\n", status);
- }
-
- /* We only get a new MSI interrupt when all active irq
- * sources on the chip have been acknowledged. So, ack
- * everything we've seen and check if new sources have become
- * active to avoid blocking all interrupts from the chip.
- */
- RTL_W16(IntrStatus,
- (status & RxFIFOOver) ? (status | RxOverflow) : status);
- status = RTL_R16(IntrStatus);
- }
-done:
- return IRQ_RETVAL(handled);
-}
-
-static int rtl8169_poll(struct napi_struct *napi, int budget)
-{
- struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
- struct net_device *dev = tp->dev;
- void __iomem *ioaddr = tp->mmio_addr;
- int work_done;
-
- work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
- rtl8169_tx_interrupt(dev, tp, ioaddr);
-
- if (work_done < budget) {
- napi_complete(napi);
-
- /* We need for force the visibility of tp->intr_mask
- * for other CPUs, as we can loose an MSI interrupt
- * and potentially wait for a retransmit timeout if we don't.
- * The posted write to IntrMask is safe, as it will
- * eventually make it to the chip and we won't loose anything
- * until it does.
- */
- tp->intr_mask = 0xffff;
- wmb();
- RTL_W16(IntrMask, tp->intr_event);
- }
-
- return work_done;
-}
-
-static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- if (tp->mac_version > RTL_GIGA_MAC_VER_06)
- return;
-
- dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
- RTL_W32(RxMissed, 0);
-}
-
-static void rtl8169_down(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
-
- del_timer_sync(&tp->timer);
-
- netif_stop_queue(dev);
-
- napi_disable(&tp->napi);
-
- spin_lock_irq(&tp->lock);
-
- rtl8169_hw_reset(tp);
- /*
- * At this point device interrupts can not be enabled in any function,
- * as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task,
- * rtl8169_reinit_task) and napi is disabled (rtl8169_poll).
- */
- rtl8169_rx_missed(dev, ioaddr);
-
- spin_unlock_irq(&tp->lock);
-
- synchronize_irq(dev->irq);
-
- /* Give a racing hard_start_xmit a few cycles to complete. */
- synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
-
- rtl8169_tx_clear(tp);
-
- rtl8169_rx_clear(tp);
-
- rtl_pll_power_down(tp);
-}
-
-static int rtl8169_close(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- struct pci_dev *pdev = tp->pci_dev;
-
- pm_runtime_get_sync(&pdev->dev);
-
- /* Update counters before going down */
- rtl8169_update_counters(dev);
-
- rtl8169_down(dev);
-
- free_irq(dev->irq, dev);
-
- dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
- tp->RxPhyAddr);
- dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
- tp->TxPhyAddr);
- tp->TxDescArray = NULL;
- tp->RxDescArray = NULL;
-
- pm_runtime_put_sync(&pdev->dev);
-
- return 0;
-}
-
-static void rtl_set_rx_mode(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
- u32 mc_filter[2]; /* Multicast hash filter */
- int rx_mode;
- u32 tmp = 0;
-
- if (dev->flags & IFF_PROMISC) {
- /* Unconditionally log net taps. */
- netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
- rx_mode =
- AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
- AcceptAllPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else {
- struct netdev_hw_addr *ha;
-
- rx_mode = AcceptBroadcast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0;
- netdev_for_each_mc_addr(ha, dev) {
- int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- rx_mode |= AcceptMulticast;
- }
- }
-
- spin_lock_irqsave(&tp->lock, flags);
-
- tmp = (RTL_R32(RxConfig) & ~RX_CONFIG_ACCEPT_MASK) | rx_mode;
-
- if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
- u32 data = mc_filter[0];
-
- mc_filter[0] = swab32(mc_filter[1]);
- mc_filter[1] = swab32(data);
- }
-
- RTL_W32(MAR0 + 4, mc_filter[1]);
- RTL_W32(MAR0 + 0, mc_filter[0]);
-
- RTL_W32(RxConfig, tmp);
-
- spin_unlock_irqrestore(&tp->lock, flags);
-}
-
-/**
- * rtl8169_get_stats - Get rtl8169 read/write statistics
- * @dev: The Ethernet Device to get statistics for
- *
- * Get TX/RX statistics for rtl8169
- */
-static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (netif_running(dev)) {
- spin_lock_irqsave(&tp->lock, flags);
- rtl8169_rx_missed(dev, ioaddr);
- spin_unlock_irqrestore(&tp->lock, flags);
- }
-
- return &dev->stats;
-}
-
-static void rtl8169_net_suspend(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- if (!netif_running(dev))
- return;
-
- rtl_pll_power_down(tp);
-
- netif_device_detach(dev);
- netif_stop_queue(dev);
-}
-
-#ifdef CONFIG_PM
-
-static int rtl8169_suspend(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *dev = pci_get_drvdata(pdev);
-
- rtl8169_net_suspend(dev);
-
- return 0;
-}
-
-static void __rtl8169_resume(struct net_device *dev)
-{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- netif_device_attach(dev);
-
- rtl_pll_power_up(tp);
-
- rtl8169_schedule_work(dev, rtl8169_reset_task);
-}
-
-static int rtl8169_resume(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl8169_init_phy(dev, tp);
-
- if (netif_running(dev))
- __rtl8169_resume(dev);
-
- return 0;
-}
-
-static int rtl8169_runtime_suspend(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
-
- if (!tp->TxDescArray)
- return 0;
-
- spin_lock_irq(&tp->lock);
- tp->saved_wolopts = __rtl8169_get_wol(tp);
- __rtl8169_set_wol(tp, WAKE_ANY);
- spin_unlock_irq(&tp->lock);
-
- rtl8169_net_suspend(dev);
-
- return 0;
-}
-
-static int rtl8169_runtime_resume(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
-
- if (!tp->TxDescArray)
- return 0;
-
- spin_lock_irq(&tp->lock);
- __rtl8169_set_wol(tp, tp->saved_wolopts);
- tp->saved_wolopts = 0;
- spin_unlock_irq(&tp->lock);
-
- rtl8169_init_phy(dev, tp);
-
- __rtl8169_resume(dev);
-
- return 0;
-}
-
-static int rtl8169_runtime_idle(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
-
- return tp->TxDescArray ? -EBUSY : 0;
-}
-
-static const struct dev_pm_ops rtl8169_pm_ops = {
- .suspend = rtl8169_suspend,
- .resume = rtl8169_resume,
- .freeze = rtl8169_suspend,
- .thaw = rtl8169_resume,
- .poweroff = rtl8169_suspend,
- .restore = rtl8169_resume,
- .runtime_suspend = rtl8169_runtime_suspend,
- .runtime_resume = rtl8169_runtime_resume,
- .runtime_idle = rtl8169_runtime_idle,
-};
-
-#define RTL8169_PM_OPS (&rtl8169_pm_ops)
-
-#else /* !CONFIG_PM */
-
-#define RTL8169_PM_OPS NULL
-
-#endif /* !CONFIG_PM */
-
-static void rtl_shutdown(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
-
- rtl8169_net_suspend(dev);
-
- /* Restore original MAC address */
- rtl_rar_set(tp, dev->perm_addr);
-
- spin_lock_irq(&tp->lock);
-
- rtl8169_hw_reset(tp);
-
- spin_unlock_irq(&tp->lock);
-
- if (system_state == SYSTEM_POWER_OFF) {
- /* WoL fails with 8168b when the receiver is disabled. */
- if ((tp->mac_version == RTL_GIGA_MAC_VER_11 ||
- tp->mac_version == RTL_GIGA_MAC_VER_12 ||
- tp->mac_version == RTL_GIGA_MAC_VER_17) &&
- (tp->features & RTL_FEATURE_WOL)) {
- pci_clear_master(pdev);
-
- RTL_W8(ChipCmd, CmdRxEnb);
- /* PCI commit */
- RTL_R8(ChipCmd);
- }
-
- pci_wake_from_d3(pdev, true);
- pci_set_power_state(pdev, PCI_D3hot);
- }
-}
-
-static struct pci_driver rtl8169_pci_driver = {
- .name = MODULENAME,
- .id_table = rtl8169_pci_tbl,
- .probe = rtl8169_init_one,
- .remove = __devexit_p(rtl8169_remove_one),
- .shutdown = rtl_shutdown,
- .driver.pm = RTL8169_PM_OPS,
-};
-
-static int __init rtl8169_init_module(void)
-{
- return pci_register_driver(&rtl8169_pci_driver);
-}
-
-static void __exit rtl8169_cleanup_module(void)
-{
- pci_unregister_driver(&rtl8169_pci_driver);
-}
-
-module_init(rtl8169_init_module);
-module_exit(rtl8169_cleanup_module);
+++ /dev/null
-/* Silan SC92031 PCI Fast Ethernet Adapter driver
- *
- * Based on vendor drivers:
- * Silan Fast Ethernet Netcard Driver:
- * MODULE_AUTHOR ("gaoyonghong");
- * MODULE_DESCRIPTION ("SILAN Fast Ethernet driver");
- * MODULE_LICENSE("GPL");
- * 8139D Fast Ethernet driver:
- * (C) 2002 by gaoyonghong
- * MODULE_AUTHOR ("gaoyonghong");
- * MODULE_DESCRIPTION ("Rsltek 8139D PCI Fast Ethernet Adapter driver");
- * MODULE_LICENSE("GPL");
- * Both are almost identical and seem to be based on pci-skeleton.c
- *
- * Rewritten for 2.6 by Cesar Eduardo Barros
- *
- * A datasheet for this chip can be found at
- * http://www.silan.com.cn/english/product/pdf/SC92031AY.pdf
- */
-
-/* Note about set_mac_address: I don't know how to change the hardware
- * matching, so you need to enable IFF_PROMISC when using it.
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/crc32.h>
-
-#include <asm/irq.h>
-
-#define SC92031_NAME "sc92031"
-
-/* BAR 0 is MMIO, BAR 1 is PIO */
-#ifndef SC92031_USE_BAR
-#define SC92031_USE_BAR 0
-#endif
-
-/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */
-static int multicast_filter_limit = 64;
-module_param(multicast_filter_limit, int, 0);
-MODULE_PARM_DESC(multicast_filter_limit,
- "Maximum number of filtered multicast addresses");
-
-static int media;
-module_param(media, int, 0);
-MODULE_PARM_DESC(media, "Media type (0x00 = autodetect,"
- " 0x01 = 10M half, 0x02 = 10M full,"
- " 0x04 = 100M half, 0x08 = 100M full)");
-
-/* Size of the in-memory receive ring. */
-#define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K ,4==128K*/
-#define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
-
-/* Number of Tx descriptor registers. */
-#define NUM_TX_DESC 4
-
-/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
-#define MAX_ETH_FRAME_SIZE 1536
-
-/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
-#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
-#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
-
-/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
-#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (4*HZ)
-
-#define SILAN_STATS_NUM 2 /* number of ETHTOOL_GSTATS */
-
-/* media options */
-#define AUTOSELECT 0x00
-#define M10_HALF 0x01
-#define M10_FULL 0x02
-#define M100_HALF 0x04
-#define M100_FULL 0x08
-
- /* Symbolic offsets to registers. */
-enum silan_registers {
- Config0 = 0x00, // Config0
- Config1 = 0x04, // Config1
- RxBufWPtr = 0x08, // Rx buffer writer poiter
- IntrStatus = 0x0C, // Interrupt status
- IntrMask = 0x10, // Interrupt mask
- RxbufAddr = 0x14, // Rx buffer start address
- RxBufRPtr = 0x18, // Rx buffer read pointer
- Txstatusall = 0x1C, // Transmit status of all descriptors
- TxStatus0 = 0x20, // Transmit status (Four 32bit registers).
- TxAddr0 = 0x30, // Tx descriptors (also four 32bit).
- RxConfig = 0x40, // Rx configuration
- MAC0 = 0x44, // Ethernet hardware address.
- MAR0 = 0x4C, // Multicast filter.
- RxStatus0 = 0x54, // Rx status
- TxConfig = 0x5C, // Tx configuration
- PhyCtrl = 0x60, // physical control
- FlowCtrlConfig = 0x64, // flow control
- Miicmd0 = 0x68, // Mii command0 register
- Miicmd1 = 0x6C, // Mii command1 register
- Miistatus = 0x70, // Mii status register
- Timercnt = 0x74, // Timer counter register
- TimerIntr = 0x78, // Timer interrupt register
- PMConfig = 0x7C, // Power Manager configuration
- CRC0 = 0x80, // Power Manager CRC ( Two 32bit regisers)
- Wakeup0 = 0x88, // power Manager wakeup( Eight 64bit regiser)
- LSBCRC0 = 0xC8, // power Manager LSBCRC(Two 32bit regiser)
- TestD0 = 0xD0,
- TestD4 = 0xD4,
- TestD8 = 0xD8,
-};
-
-#define MII_BMCR 0 // Basic mode control register
-#define MII_BMSR 1 // Basic mode status register
-#define MII_JAB 16
-#define MII_OutputStatus 24
-
-#define BMCR_FULLDPLX 0x0100 // Full duplex
-#define BMCR_ANRESTART 0x0200 // Auto negotiation restart
-#define BMCR_ANENABLE 0x1000 // Enable auto negotiation
-#define BMCR_SPEED100 0x2000 // Select 100Mbps
-#define BMSR_LSTATUS 0x0004 // Link status
-#define PHY_16_JAB_ENB 0x1000
-#define PHY_16_PORT_ENB 0x1
-
-enum IntrStatusBits {
- LinkFail = 0x80000000,
- LinkOK = 0x40000000,
- TimeOut = 0x20000000,
- RxOverflow = 0x0040,
- RxOK = 0x0020,
- TxOK = 0x0001,
- IntrBits = LinkFail|LinkOK|TimeOut|RxOverflow|RxOK|TxOK,
-};
-
-enum TxStatusBits {
- TxCarrierLost = 0x20000000,
- TxAborted = 0x10000000,
- TxOutOfWindow = 0x08000000,
- TxNccShift = 22,
- EarlyTxThresShift = 16,
- TxStatOK = 0x8000,
- TxUnderrun = 0x4000,
- TxOwn = 0x2000,
-};
-
-enum RxStatusBits {
- RxStatesOK = 0x80000,
- RxBadAlign = 0x40000,
- RxHugeFrame = 0x20000,
- RxSmallFrame = 0x10000,
- RxCRCOK = 0x8000,
- RxCrlFrame = 0x4000,
- Rx_Broadcast = 0x2000,
- Rx_Multicast = 0x1000,
- RxAddrMatch = 0x0800,
- MiiErr = 0x0400,
-};
-
-enum RxConfigBits {
- RxFullDx = 0x80000000,
- RxEnb = 0x40000000,
- RxSmall = 0x20000000,
- RxHuge = 0x10000000,
- RxErr = 0x08000000,
- RxAllphys = 0x04000000,
- RxMulticast = 0x02000000,
- RxBroadcast = 0x01000000,
- RxLoopBack = (1 << 23) | (1 << 22),
- LowThresholdShift = 12,
- HighThresholdShift = 2,
-};
-
-enum TxConfigBits {
- TxFullDx = 0x80000000,
- TxEnb = 0x40000000,
- TxEnbPad = 0x20000000,
- TxEnbHuge = 0x10000000,
- TxEnbFCS = 0x08000000,
- TxNoBackOff = 0x04000000,
- TxEnbPrem = 0x02000000,
- TxCareLostCrs = 0x1000000,
- TxExdCollNum = 0xf00000,
- TxDataRate = 0x80000,
-};
-
-enum PhyCtrlconfigbits {
- PhyCtrlAne = 0x80000000,
- PhyCtrlSpd100 = 0x40000000,
- PhyCtrlSpd10 = 0x20000000,
- PhyCtrlPhyBaseAddr = 0x1f000000,
- PhyCtrlDux = 0x800000,
- PhyCtrlReset = 0x400000,
-};
-
-enum FlowCtrlConfigBits {
- FlowCtrlFullDX = 0x80000000,
- FlowCtrlEnb = 0x40000000,
-};
-
-enum Config0Bits {
- Cfg0_Reset = 0x80000000,
- Cfg0_Anaoff = 0x40000000,
- Cfg0_LDPS = 0x20000000,
-};
-
-enum Config1Bits {
- Cfg1_EarlyRx = 1 << 31,
- Cfg1_EarlyTx = 1 << 30,
-
- //rx buffer size
- Cfg1_Rcv8K = 0x0,
- Cfg1_Rcv16K = 0x1,
- Cfg1_Rcv32K = 0x3,
- Cfg1_Rcv64K = 0x7,
- Cfg1_Rcv128K = 0xf,
-};
-
-enum MiiCmd0Bits {
- Mii_Divider = 0x20000000,
- Mii_WRITE = 0x400000,
- Mii_READ = 0x200000,
- Mii_SCAN = 0x100000,
- Mii_Tamod = 0x80000,
- Mii_Drvmod = 0x40000,
- Mii_mdc = 0x20000,
- Mii_mdoen = 0x10000,
- Mii_mdo = 0x8000,
- Mii_mdi = 0x4000,
-};
-
-enum MiiStatusBits {
- Mii_StatusBusy = 0x80000000,
-};
-
-enum PMConfigBits {
- PM_Enable = 1 << 31,
- PM_LongWF = 1 << 30,
- PM_Magic = 1 << 29,
- PM_LANWake = 1 << 28,
- PM_LWPTN = (1 << 27 | 1<< 26),
- PM_LinkUp = 1 << 25,
- PM_WakeUp = 1 << 24,
-};
-
-/* Locking rules:
- * priv->lock protects most of the fields of priv and most of the
- * hardware registers. It does not have to protect against softirqs
- * between sc92031_disable_interrupts and sc92031_enable_interrupts;
- * it also does not need to be used in ->open and ->stop while the
- * device interrupts are off.
- * Not having to protect against softirqs is very useful due to heavy
- * use of mdelay() at _sc92031_reset.
- * Functions prefixed with _sc92031_ must be called with the lock held;
- * functions prefixed with sc92031_ must be called without the lock held.
- * Use mmiowb() before unlocking if the hardware was written to.
- */
-
-/* Locking rules for the interrupt:
- * - the interrupt and the tasklet never run at the same time
- * - neither run between sc92031_disable_interrupts and
- * sc92031_enable_interrupt
- */
-
-struct sc92031_priv {
- spinlock_t lock;
- /* iomap.h cookie */
- void __iomem *port_base;
- /* pci device structure */
- struct pci_dev *pdev;
- /* tasklet */
- struct tasklet_struct tasklet;
-
- /* CPU address of rx ring */
- void *rx_ring;
- /* PCI address of rx ring */
- dma_addr_t rx_ring_dma_addr;
- /* PCI address of rx ring read pointer */
- dma_addr_t rx_ring_tail;
-
- /* tx ring write index */
- unsigned tx_head;
- /* tx ring read index */
- unsigned tx_tail;
- /* CPU address of tx bounce buffer */
- void *tx_bufs;
- /* PCI address of tx bounce buffer */
- dma_addr_t tx_bufs_dma_addr;
-
- /* copies of some hardware registers */
- u32 intr_status;
- atomic_t intr_mask;
- u32 rx_config;
- u32 tx_config;
- u32 pm_config;
-
- /* copy of some flags from dev->flags */
- unsigned int mc_flags;
-
- /* for ETHTOOL_GSTATS */
- u64 tx_timeouts;
- u64 rx_loss;
-
- /* for dev->get_stats */
- long rx_value;
-};
-
-/* I don't know which registers can be safely read; however, I can guess
- * MAC0 is one of them. */
-static inline void _sc92031_dummy_read(void __iomem *port_base)
-{
- ioread32(port_base + MAC0);
-}
-
-static u32 _sc92031_mii_wait(void __iomem *port_base)
-{
- u32 mii_status;
-
- do {
- udelay(10);
- mii_status = ioread32(port_base + Miistatus);
- } while (mii_status & Mii_StatusBusy);
-
- return mii_status;
-}
-
-static u32 _sc92031_mii_cmd(void __iomem *port_base, u32 cmd0, u32 cmd1)
-{
- iowrite32(Mii_Divider, port_base + Miicmd0);
-
- _sc92031_mii_wait(port_base);
-
- iowrite32(cmd1, port_base + Miicmd1);
- iowrite32(Mii_Divider | cmd0, port_base + Miicmd0);
-
- return _sc92031_mii_wait(port_base);
-}
-
-static void _sc92031_mii_scan(void __iomem *port_base)
-{
- _sc92031_mii_cmd(port_base, Mii_SCAN, 0x1 << 6);
-}
-
-static u16 _sc92031_mii_read(void __iomem *port_base, unsigned reg)
-{
- return _sc92031_mii_cmd(port_base, Mii_READ, reg << 6) >> 13;
-}
-
-static void _sc92031_mii_write(void __iomem *port_base, unsigned reg, u16 val)
-{
- _sc92031_mii_cmd(port_base, Mii_WRITE, (reg << 6) | ((u32)val << 11));
-}
-
-static void sc92031_disable_interrupts(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- /* tell the tasklet/interrupt not to enable interrupts */
- atomic_set(&priv->intr_mask, 0);
- wmb();
-
- /* stop interrupts */
- iowrite32(0, port_base + IntrMask);
- _sc92031_dummy_read(port_base);
- mmiowb();
-
- /* wait for any concurrent interrupt/tasklet to finish */
- synchronize_irq(dev->irq);
- tasklet_disable(&priv->tasklet);
-}
-
-static void sc92031_enable_interrupts(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- tasklet_enable(&priv->tasklet);
-
- atomic_set(&priv->intr_mask, IntrBits);
- wmb();
-
- iowrite32(IntrBits, port_base + IntrMask);
- mmiowb();
-}
-
-static void _sc92031_disable_tx_rx(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- priv->rx_config &= ~RxEnb;
- priv->tx_config &= ~TxEnb;
- iowrite32(priv->rx_config, port_base + RxConfig);
- iowrite32(priv->tx_config, port_base + TxConfig);
-}
-
-static void _sc92031_enable_tx_rx(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- priv->rx_config |= RxEnb;
- priv->tx_config |= TxEnb;
- iowrite32(priv->rx_config, port_base + RxConfig);
- iowrite32(priv->tx_config, port_base + TxConfig);
-}
-
-static void _sc92031_tx_clear(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
-
- while (priv->tx_head - priv->tx_tail > 0) {
- priv->tx_tail++;
- dev->stats.tx_dropped++;
- }
- priv->tx_head = priv->tx_tail = 0;
-}
-
-static void _sc92031_set_mar(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 mar0 = 0, mar1 = 0;
-
- if ((dev->flags & IFF_PROMISC) ||
- netdev_mc_count(dev) > multicast_filter_limit ||
- (dev->flags & IFF_ALLMULTI))
- mar0 = mar1 = 0xffffffff;
- else if (dev->flags & IFF_MULTICAST) {
- struct netdev_hw_addr *ha;
-
- netdev_for_each_mc_addr(ha, dev) {
- u32 crc;
- unsigned bit = 0;
-
- crc = ~ether_crc(ETH_ALEN, ha->addr);
- crc >>= 24;
-
- if (crc & 0x01) bit |= 0x02;
- if (crc & 0x02) bit |= 0x01;
- if (crc & 0x10) bit |= 0x20;
- if (crc & 0x20) bit |= 0x10;
- if (crc & 0x40) bit |= 0x08;
- if (crc & 0x80) bit |= 0x04;
-
- if (bit > 31)
- mar0 |= 0x1 << (bit - 32);
- else
- mar1 |= 0x1 << bit;
- }
- }
-
- iowrite32(mar0, port_base + MAR0);
- iowrite32(mar1, port_base + MAR0 + 4);
-}
-
-static void _sc92031_set_rx_config(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- unsigned int old_mc_flags;
- u32 rx_config_bits = 0;
-
- old_mc_flags = priv->mc_flags;
-
- if (dev->flags & IFF_PROMISC)
- rx_config_bits |= RxSmall | RxHuge | RxErr | RxBroadcast
- | RxMulticast | RxAllphys;
-
- if (dev->flags & (IFF_ALLMULTI | IFF_MULTICAST))
- rx_config_bits |= RxMulticast;
-
- if (dev->flags & IFF_BROADCAST)
- rx_config_bits |= RxBroadcast;
-
- priv->rx_config &= ~(RxSmall | RxHuge | RxErr | RxBroadcast
- | RxMulticast | RxAllphys);
- priv->rx_config |= rx_config_bits;
-
- priv->mc_flags = dev->flags & (IFF_PROMISC | IFF_ALLMULTI
- | IFF_MULTICAST | IFF_BROADCAST);
-
- if (netif_carrier_ok(dev) && priv->mc_flags != old_mc_flags)
- iowrite32(priv->rx_config, port_base + RxConfig);
-}
-
-static bool _sc92031_check_media(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u16 bmsr;
-
- bmsr = _sc92031_mii_read(port_base, MII_BMSR);
- rmb();
- if (bmsr & BMSR_LSTATUS) {
- bool speed_100, duplex_full;
- u32 flow_ctrl_config = 0;
- u16 output_status = _sc92031_mii_read(port_base,
- MII_OutputStatus);
- _sc92031_mii_scan(port_base);
-
- speed_100 = output_status & 0x2;
- duplex_full = output_status & 0x4;
-
- /* Initial Tx/Rx configuration */
- priv->rx_config = (0x40 << LowThresholdShift) | (0x1c0 << HighThresholdShift);
- priv->tx_config = 0x48800000;
-
- /* NOTE: vendor driver had dead code here to enable tx padding */
-
- if (!speed_100)
- priv->tx_config |= 0x80000;
-
- // configure rx mode
- _sc92031_set_rx_config(dev);
-
- if (duplex_full) {
- priv->rx_config |= RxFullDx;
- priv->tx_config |= TxFullDx;
- flow_ctrl_config = FlowCtrlFullDX | FlowCtrlEnb;
- } else {
- priv->rx_config &= ~RxFullDx;
- priv->tx_config &= ~TxFullDx;
- }
-
- _sc92031_set_mar(dev);
- _sc92031_set_rx_config(dev);
- _sc92031_enable_tx_rx(dev);
- iowrite32(flow_ctrl_config, port_base + FlowCtrlConfig);
-
- netif_carrier_on(dev);
-
- if (printk_ratelimit())
- printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n",
- dev->name,
- speed_100 ? "100" : "10",
- duplex_full ? "full" : "half");
- return true;
- } else {
- _sc92031_mii_scan(port_base);
-
- netif_carrier_off(dev);
-
- _sc92031_disable_tx_rx(dev);
-
- if (printk_ratelimit())
- printk(KERN_INFO "%s: link down\n", dev->name);
- return false;
- }
-}
-
-static void _sc92031_phy_reset(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 phy_ctrl;
-
- phy_ctrl = ioread32(port_base + PhyCtrl);
- phy_ctrl &= ~(PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10);
- phy_ctrl |= PhyCtrlAne | PhyCtrlReset;
-
- switch (media) {
- default:
- case AUTOSELECT:
- phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
- break;
- case M10_HALF:
- phy_ctrl |= PhyCtrlSpd10;
- break;
- case M10_FULL:
- phy_ctrl |= PhyCtrlDux | PhyCtrlSpd10;
- break;
- case M100_HALF:
- phy_ctrl |= PhyCtrlSpd100;
- break;
- case M100_FULL:
- phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
- break;
- }
-
- iowrite32(phy_ctrl, port_base + PhyCtrl);
- mdelay(10);
-
- phy_ctrl &= ~PhyCtrlReset;
- iowrite32(phy_ctrl, port_base + PhyCtrl);
- mdelay(1);
-
- _sc92031_mii_write(port_base, MII_JAB,
- PHY_16_JAB_ENB | PHY_16_PORT_ENB);
- _sc92031_mii_scan(port_base);
-
- netif_carrier_off(dev);
- netif_stop_queue(dev);
-}
-
-static void _sc92031_reset(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- /* disable PM */
- iowrite32(0, port_base + PMConfig);
-
- /* soft reset the chip */
- iowrite32(Cfg0_Reset, port_base + Config0);
- mdelay(200);
-
- iowrite32(0, port_base + Config0);
- mdelay(10);
-
- /* disable interrupts */
- iowrite32(0, port_base + IntrMask);
-
- /* clear multicast address */
- iowrite32(0, port_base + MAR0);
- iowrite32(0, port_base + MAR0 + 4);
-
- /* init rx ring */
- iowrite32(priv->rx_ring_dma_addr, port_base + RxbufAddr);
- priv->rx_ring_tail = priv->rx_ring_dma_addr;
-
- /* init tx ring */
- _sc92031_tx_clear(dev);
-
- /* clear old register values */
- priv->intr_status = 0;
- atomic_set(&priv->intr_mask, 0);
- priv->rx_config = 0;
- priv->tx_config = 0;
- priv->mc_flags = 0;
-
- /* configure rx buffer size */
- /* NOTE: vendor driver had dead code here to enable early tx/rx */
- iowrite32(Cfg1_Rcv64K, port_base + Config1);
-
- _sc92031_phy_reset(dev);
- _sc92031_check_media(dev);
-
- /* calculate rx fifo overflow */
- priv->rx_value = 0;
-
- /* enable PM */
- iowrite32(priv->pm_config, port_base + PMConfig);
-
- /* clear intr register */
- ioread32(port_base + IntrStatus);
-}
-
-static void _sc92031_tx_tasklet(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- unsigned old_tx_tail;
- unsigned entry;
- u32 tx_status;
-
- old_tx_tail = priv->tx_tail;
- while (priv->tx_head - priv->tx_tail > 0) {
- entry = priv->tx_tail % NUM_TX_DESC;
- tx_status = ioread32(port_base + TxStatus0 + entry * 4);
-
- if (!(tx_status & (TxStatOK | TxUnderrun | TxAborted)))
- break;
-
- priv->tx_tail++;
-
- if (tx_status & TxStatOK) {
- dev->stats.tx_bytes += tx_status & 0x1fff;
- dev->stats.tx_packets++;
- /* Note: TxCarrierLost is always asserted at 100mbps. */
- dev->stats.collisions += (tx_status >> 22) & 0xf;
- }
-
- if (tx_status & (TxOutOfWindow | TxAborted)) {
- dev->stats.tx_errors++;
-
- if (tx_status & TxAborted)
- dev->stats.tx_aborted_errors++;
-
- if (tx_status & TxCarrierLost)
- dev->stats.tx_carrier_errors++;
-
- if (tx_status & TxOutOfWindow)
- dev->stats.tx_window_errors++;
- }
-
- if (tx_status & TxUnderrun)
- dev->stats.tx_fifo_errors++;
- }
-
- if (priv->tx_tail != old_tx_tail)
- if (netif_queue_stopped(dev))
- netif_wake_queue(dev);
-}
-
-static void _sc92031_rx_tasklet_error(struct net_device *dev,
- u32 rx_status, unsigned rx_size)
-{
- if(rx_size > (MAX_ETH_FRAME_SIZE + 4) || rx_size < 16) {
- dev->stats.rx_errors++;
- dev->stats.rx_length_errors++;
- }
-
- if (!(rx_status & RxStatesOK)) {
- dev->stats.rx_errors++;
-
- if (rx_status & (RxHugeFrame | RxSmallFrame))
- dev->stats.rx_length_errors++;
-
- if (rx_status & RxBadAlign)
- dev->stats.rx_frame_errors++;
-
- if (!(rx_status & RxCRCOK))
- dev->stats.rx_crc_errors++;
- } else {
- struct sc92031_priv *priv = netdev_priv(dev);
- priv->rx_loss++;
- }
-}
-
-static void _sc92031_rx_tasklet(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- dma_addr_t rx_ring_head;
- unsigned rx_len;
- unsigned rx_ring_offset;
- void *rx_ring = priv->rx_ring;
-
- rx_ring_head = ioread32(port_base + RxBufWPtr);
- rmb();
-
- /* rx_ring_head is only 17 bits in the RxBufWPtr register.
- * we need to change it to 32 bits physical address
- */
- rx_ring_head &= (dma_addr_t)(RX_BUF_LEN - 1);
- rx_ring_head |= priv->rx_ring_dma_addr & ~(dma_addr_t)(RX_BUF_LEN - 1);
- if (rx_ring_head < priv->rx_ring_dma_addr)
- rx_ring_head += RX_BUF_LEN;
-
- if (rx_ring_head >= priv->rx_ring_tail)
- rx_len = rx_ring_head - priv->rx_ring_tail;
- else
- rx_len = RX_BUF_LEN - (priv->rx_ring_tail - rx_ring_head);
-
- if (!rx_len)
- return;
-
- if (unlikely(rx_len > RX_BUF_LEN)) {
- if (printk_ratelimit())
- printk(KERN_ERR "%s: rx packets length > rx buffer\n",
- dev->name);
- return;
- }
-
- rx_ring_offset = (priv->rx_ring_tail - priv->rx_ring_dma_addr) % RX_BUF_LEN;
-
- while (rx_len) {
- u32 rx_status;
- unsigned rx_size, rx_size_align, pkt_size;
- struct sk_buff *skb;
-
- rx_status = le32_to_cpup((__le32 *)(rx_ring + rx_ring_offset));
- rmb();
-
- rx_size = rx_status >> 20;
- rx_size_align = (rx_size + 3) & ~3; // for 4 bytes aligned
- pkt_size = rx_size - 4; // Omit the four octet CRC from the length.
-
- rx_ring_offset = (rx_ring_offset + 4) % RX_BUF_LEN;
-
- if (unlikely(rx_status == 0 ||
- rx_size > (MAX_ETH_FRAME_SIZE + 4) ||
- rx_size < 16 ||
- !(rx_status & RxStatesOK))) {
- _sc92031_rx_tasklet_error(dev, rx_status, rx_size);
- break;
- }
-
- if (unlikely(rx_size_align + 4 > rx_len)) {
- if (printk_ratelimit())
- printk(KERN_ERR "%s: rx_len is too small\n", dev->name);
- break;
- }
-
- rx_len -= rx_size_align + 4;
-
- skb = netdev_alloc_skb_ip_align(dev, pkt_size);
- if (unlikely(!skb)) {
- if (printk_ratelimit())
- printk(KERN_ERR "%s: Couldn't allocate a skb_buff for a packet of size %u\n",
- dev->name, pkt_size);
- goto next;
- }
-
- if ((rx_ring_offset + pkt_size) > RX_BUF_LEN) {
- memcpy(skb_put(skb, RX_BUF_LEN - rx_ring_offset),
- rx_ring + rx_ring_offset, RX_BUF_LEN - rx_ring_offset);
- memcpy(skb_put(skb, pkt_size - (RX_BUF_LEN - rx_ring_offset)),
- rx_ring, pkt_size - (RX_BUF_LEN - rx_ring_offset));
- } else {
- memcpy(skb_put(skb, pkt_size), rx_ring + rx_ring_offset, pkt_size);
- }
-
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
-
- dev->stats.rx_bytes += pkt_size;
- dev->stats.rx_packets++;
-
- if (rx_status & Rx_Multicast)
- dev->stats.multicast++;
-
- next:
- rx_ring_offset = (rx_ring_offset + rx_size_align) % RX_BUF_LEN;
- }
- mb();
-
- priv->rx_ring_tail = rx_ring_head;
- iowrite32(priv->rx_ring_tail, port_base + RxBufRPtr);
-}
-
-static void _sc92031_link_tasklet(struct net_device *dev)
-{
- if (_sc92031_check_media(dev))
- netif_wake_queue(dev);
- else {
- netif_stop_queue(dev);
- dev->stats.tx_carrier_errors++;
- }
-}
-
-static void sc92031_tasklet(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 intr_status, intr_mask;
-
- intr_status = priv->intr_status;
-
- spin_lock(&priv->lock);
-
- if (unlikely(!netif_running(dev)))
- goto out;
-
- if (intr_status & TxOK)
- _sc92031_tx_tasklet(dev);
-
- if (intr_status & RxOK)
- _sc92031_rx_tasklet(dev);
-
- if (intr_status & RxOverflow)
- dev->stats.rx_errors++;
-
- if (intr_status & TimeOut) {
- dev->stats.rx_errors++;
- dev->stats.rx_length_errors++;
- }
-
- if (intr_status & (LinkFail | LinkOK))
- _sc92031_link_tasklet(dev);
-
-out:
- intr_mask = atomic_read(&priv->intr_mask);
- rmb();
-
- iowrite32(intr_mask, port_base + IntrMask);
- mmiowb();
-
- spin_unlock(&priv->lock);
-}
-
-static irqreturn_t sc92031_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 intr_status, intr_mask;
-
- /* mask interrupts before clearing IntrStatus */
- iowrite32(0, port_base + IntrMask);
- _sc92031_dummy_read(port_base);
-
- intr_status = ioread32(port_base + IntrStatus);
- if (unlikely(intr_status == 0xffffffff))
- return IRQ_NONE; // hardware has gone missing
-
- intr_status &= IntrBits;
- if (!intr_status)
- goto out_none;
-
- priv->intr_status = intr_status;
- tasklet_schedule(&priv->tasklet);
-
- return IRQ_HANDLED;
-
-out_none:
- intr_mask = atomic_read(&priv->intr_mask);
- rmb();
-
- iowrite32(intr_mask, port_base + IntrMask);
- mmiowb();
-
- return IRQ_NONE;
-}
-
-static struct net_device_stats *sc92031_get_stats(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
-
- // FIXME I do not understand what is this trying to do.
- if (netif_running(dev)) {
- int temp;
-
- spin_lock_bh(&priv->lock);
-
- /* Update the error count. */
- temp = (ioread32(port_base + RxStatus0) >> 16) & 0xffff;
-
- if (temp == 0xffff) {
- priv->rx_value += temp;
- dev->stats.rx_fifo_errors = priv->rx_value;
- } else
- dev->stats.rx_fifo_errors = temp + priv->rx_value;
-
- spin_unlock_bh(&priv->lock);
- }
-
- return &dev->stats;
-}
-
-static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- unsigned len;
- unsigned entry;
- u32 tx_status;
-
- if (unlikely(skb->len > TX_BUF_SIZE)) {
- dev->stats.tx_dropped++;
- goto out;
- }
-
- spin_lock(&priv->lock);
-
- if (unlikely(!netif_carrier_ok(dev))) {
- dev->stats.tx_dropped++;
- goto out_unlock;
- }
-
- BUG_ON(priv->tx_head - priv->tx_tail >= NUM_TX_DESC);
-
- entry = priv->tx_head++ % NUM_TX_DESC;
-
- skb_copy_and_csum_dev(skb, priv->tx_bufs + entry * TX_BUF_SIZE);
-
- len = skb->len;
- if (len < ETH_ZLEN) {
- memset(priv->tx_bufs + entry * TX_BUF_SIZE + len,
- 0, ETH_ZLEN - len);
- len = ETH_ZLEN;
- }
-
- wmb();
-
- if (len < 100)
- tx_status = len;
- else if (len < 300)
- tx_status = 0x30000 | len;
- else
- tx_status = 0x50000 | len;
-
- iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE,
- port_base + TxAddr0 + entry * 4);
- iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
- mmiowb();
-
- if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
- netif_stop_queue(dev);
-
-out_unlock:
- spin_unlock(&priv->lock);
-
-out:
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-}
-
-static int sc92031_open(struct net_device *dev)
-{
- int err;
- struct sc92031_priv *priv = netdev_priv(dev);
- struct pci_dev *pdev = priv->pdev;
-
- priv->rx_ring = pci_alloc_consistent(pdev, RX_BUF_LEN,
- &priv->rx_ring_dma_addr);
- if (unlikely(!priv->rx_ring)) {
- err = -ENOMEM;
- goto out_alloc_rx_ring;
- }
-
- priv->tx_bufs = pci_alloc_consistent(pdev, TX_BUF_TOT_LEN,
- &priv->tx_bufs_dma_addr);
- if (unlikely(!priv->tx_bufs)) {
- err = -ENOMEM;
- goto out_alloc_tx_bufs;
- }
- priv->tx_head = priv->tx_tail = 0;
-
- err = request_irq(pdev->irq, sc92031_interrupt,
- IRQF_SHARED, dev->name, dev);
- if (unlikely(err < 0))
- goto out_request_irq;
-
- priv->pm_config = 0;
-
- /* Interrupts already disabled by sc92031_stop or sc92031_probe */
- spin_lock_bh(&priv->lock);
-
- _sc92031_reset(dev);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
- sc92031_enable_interrupts(dev);
-
- if (netif_carrier_ok(dev))
- netif_start_queue(dev);
- else
- netif_tx_disable(dev);
-
- return 0;
-
-out_request_irq:
- pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
- priv->tx_bufs_dma_addr);
-out_alloc_tx_bufs:
- pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
- priv->rx_ring_dma_addr);
-out_alloc_rx_ring:
- return err;
-}
-
-static int sc92031_stop(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- struct pci_dev *pdev = priv->pdev;
-
- netif_tx_disable(dev);
-
- /* Disable interrupts, stop Tx and Rx. */
- sc92031_disable_interrupts(dev);
-
- spin_lock_bh(&priv->lock);
-
- _sc92031_disable_tx_rx(dev);
- _sc92031_tx_clear(dev);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-
- free_irq(pdev->irq, dev);
- pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
- priv->tx_bufs_dma_addr);
- pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
- priv->rx_ring_dma_addr);
-
- return 0;
-}
-
-static void sc92031_set_multicast_list(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
-
- spin_lock_bh(&priv->lock);
-
- _sc92031_set_mar(dev);
- _sc92031_set_rx_config(dev);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-}
-
-static void sc92031_tx_timeout(struct net_device *dev)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
-
- /* Disable interrupts by clearing the interrupt mask.*/
- sc92031_disable_interrupts(dev);
-
- spin_lock(&priv->lock);
-
- priv->tx_timeouts++;
-
- _sc92031_reset(dev);
- mmiowb();
-
- spin_unlock(&priv->lock);
-
- /* enable interrupts */
- sc92031_enable_interrupts(dev);
-
- if (netif_carrier_ok(dev))
- netif_wake_queue(dev);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void sc92031_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- if (sc92031_interrupt(dev->irq, dev) != IRQ_NONE)
- sc92031_tasklet((unsigned long)dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static int sc92031_ethtool_get_settings(struct net_device *dev,
- struct ethtool_cmd *cmd)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u8 phy_address;
- u32 phy_ctrl;
- u16 output_status;
-
- spin_lock_bh(&priv->lock);
-
- phy_address = ioread32(port_base + Miicmd1) >> 27;
- phy_ctrl = ioread32(port_base + PhyCtrl);
-
- output_status = _sc92031_mii_read(port_base, MII_OutputStatus);
- _sc92031_mii_scan(port_base);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-
- cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full
- | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full
- | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII;
-
- cmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
-
- if ((phy_ctrl & (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
- == (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
- cmd->advertising |= ADVERTISED_Autoneg;
-
- if ((phy_ctrl & PhyCtrlSpd10) == PhyCtrlSpd10)
- cmd->advertising |= ADVERTISED_10baseT_Half;
-
- if ((phy_ctrl & (PhyCtrlSpd10 | PhyCtrlDux))
- == (PhyCtrlSpd10 | PhyCtrlDux))
- cmd->advertising |= ADVERTISED_10baseT_Full;
-
- if ((phy_ctrl & PhyCtrlSpd100) == PhyCtrlSpd100)
- cmd->advertising |= ADVERTISED_100baseT_Half;
-
- if ((phy_ctrl & (PhyCtrlSpd100 | PhyCtrlDux))
- == (PhyCtrlSpd100 | PhyCtrlDux))
- cmd->advertising |= ADVERTISED_100baseT_Full;
-
- if (phy_ctrl & PhyCtrlAne)
- cmd->advertising |= ADVERTISED_Autoneg;
-
- ethtool_cmd_speed_set(cmd,
- (output_status & 0x2) ? SPEED_100 : SPEED_10);
- cmd->duplex = (output_status & 0x4) ? DUPLEX_FULL : DUPLEX_HALF;
- cmd->port = PORT_MII;
- cmd->phy_address = phy_address;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->autoneg = (phy_ctrl & PhyCtrlAne) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
-
- return 0;
-}
-
-static int sc92031_ethtool_set_settings(struct net_device *dev,
- struct ethtool_cmd *cmd)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 speed = ethtool_cmd_speed(cmd);
- u32 phy_ctrl;
- u32 old_phy_ctrl;
-
- if (!(speed == SPEED_10 || speed == SPEED_100))
- return -EINVAL;
- if (!(cmd->duplex == DUPLEX_HALF || cmd->duplex == DUPLEX_FULL))
- return -EINVAL;
- if (!(cmd->port == PORT_MII))
- return -EINVAL;
- if (!(cmd->phy_address == 0x1f))
- return -EINVAL;
- if (!(cmd->transceiver == XCVR_INTERNAL))
- return -EINVAL;
- if (!(cmd->autoneg == AUTONEG_DISABLE || cmd->autoneg == AUTONEG_ENABLE))
- return -EINVAL;
-
- if (cmd->autoneg == AUTONEG_ENABLE) {
- if (!(cmd->advertising & (ADVERTISED_Autoneg
- | ADVERTISED_100baseT_Full
- | ADVERTISED_100baseT_Half
- | ADVERTISED_10baseT_Full
- | ADVERTISED_10baseT_Half)))
- return -EINVAL;
-
- phy_ctrl = PhyCtrlAne;
-
- // FIXME: I'm not sure what the original code was trying to do
- if (cmd->advertising & ADVERTISED_Autoneg)
- phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
- if (cmd->advertising & ADVERTISED_100baseT_Full)
- phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
- if (cmd->advertising & ADVERTISED_100baseT_Half)
- phy_ctrl |= PhyCtrlSpd100;
- if (cmd->advertising & ADVERTISED_10baseT_Full)
- phy_ctrl |= PhyCtrlSpd10 | PhyCtrlDux;
- if (cmd->advertising & ADVERTISED_10baseT_Half)
- phy_ctrl |= PhyCtrlSpd10;
- } else {
- // FIXME: Whole branch guessed
- phy_ctrl = 0;
-
- if (speed == SPEED_10)
- phy_ctrl |= PhyCtrlSpd10;
- else /* cmd->speed == SPEED_100 */
- phy_ctrl |= PhyCtrlSpd100;
-
- if (cmd->duplex == DUPLEX_FULL)
- phy_ctrl |= PhyCtrlDux;
- }
-
- spin_lock_bh(&priv->lock);
-
- old_phy_ctrl = ioread32(port_base + PhyCtrl);
- phy_ctrl |= old_phy_ctrl & ~(PhyCtrlAne | PhyCtrlDux
- | PhyCtrlSpd100 | PhyCtrlSpd10);
- if (phy_ctrl != old_phy_ctrl)
- iowrite32(phy_ctrl, port_base + PhyCtrl);
-
- spin_unlock_bh(&priv->lock);
-
- return 0;
-}
-
-static void sc92031_ethtool_get_wol(struct net_device *dev,
- struct ethtool_wolinfo *wolinfo)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 pm_config;
-
- spin_lock_bh(&priv->lock);
- pm_config = ioread32(port_base + PMConfig);
- spin_unlock_bh(&priv->lock);
-
- // FIXME: Guessed
- wolinfo->supported = WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
- wolinfo->wolopts = 0;
-
- if (pm_config & PM_LinkUp)
- wolinfo->wolopts |= WAKE_PHY;
-
- if (pm_config & PM_Magic)
- wolinfo->wolopts |= WAKE_MAGIC;
-
- if (pm_config & PM_WakeUp)
- // FIXME: Guessed
- wolinfo->wolopts |= WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
-}
-
-static int sc92031_ethtool_set_wol(struct net_device *dev,
- struct ethtool_wolinfo *wolinfo)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u32 pm_config;
-
- spin_lock_bh(&priv->lock);
-
- pm_config = ioread32(port_base + PMConfig)
- & ~(PM_LinkUp | PM_Magic | PM_WakeUp);
-
- if (wolinfo->wolopts & WAKE_PHY)
- pm_config |= PM_LinkUp;
-
- if (wolinfo->wolopts & WAKE_MAGIC)
- pm_config |= PM_Magic;
-
- // FIXME: Guessed
- if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
- pm_config |= PM_WakeUp;
-
- priv->pm_config = pm_config;
- iowrite32(pm_config, port_base + PMConfig);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-
- return 0;
-}
-
-static int sc92031_ethtool_nway_reset(struct net_device *dev)
-{
- int err = 0;
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem *port_base = priv->port_base;
- u16 bmcr;
-
- spin_lock_bh(&priv->lock);
-
- bmcr = _sc92031_mii_read(port_base, MII_BMCR);
- if (!(bmcr & BMCR_ANENABLE)) {
- err = -EINVAL;
- goto out;
- }
-
- _sc92031_mii_write(port_base, MII_BMCR, bmcr | BMCR_ANRESTART);
-
-out:
- _sc92031_mii_scan(port_base);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-
- return err;
-}
-
-static const char sc92031_ethtool_stats_strings[SILAN_STATS_NUM][ETH_GSTRING_LEN] = {
- "tx_timeout",
- "rx_loss",
-};
-
-static void sc92031_ethtool_get_strings(struct net_device *dev,
- u32 stringset, u8 *data)
-{
- if (stringset == ETH_SS_STATS)
- memcpy(data, sc92031_ethtool_stats_strings,
- SILAN_STATS_NUM * ETH_GSTRING_LEN);
-}
-
-static int sc92031_ethtool_get_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return SILAN_STATS_NUM;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void sc92031_ethtool_get_ethtool_stats(struct net_device *dev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct sc92031_priv *priv = netdev_priv(dev);
-
- spin_lock_bh(&priv->lock);
- data[0] = priv->tx_timeouts;
- data[1] = priv->rx_loss;
- spin_unlock_bh(&priv->lock);
-}
-
-static const struct ethtool_ops sc92031_ethtool_ops = {
- .get_settings = sc92031_ethtool_get_settings,
- .set_settings = sc92031_ethtool_set_settings,
- .get_wol = sc92031_ethtool_get_wol,
- .set_wol = sc92031_ethtool_set_wol,
- .nway_reset = sc92031_ethtool_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_strings = sc92031_ethtool_get_strings,
- .get_sset_count = sc92031_ethtool_get_sset_count,
- .get_ethtool_stats = sc92031_ethtool_get_ethtool_stats,
-};
-
-
-static const struct net_device_ops sc92031_netdev_ops = {
- .ndo_get_stats = sc92031_get_stats,
- .ndo_start_xmit = sc92031_start_xmit,
- .ndo_open = sc92031_open,
- .ndo_stop = sc92031_stop,
- .ndo_set_multicast_list = sc92031_set_multicast_list,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_tx_timeout = sc92031_tx_timeout,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = sc92031_poll_controller,
-#endif
-};
-
-static int __devinit sc92031_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
-{
- int err;
- void __iomem* port_base;
- struct net_device *dev;
- struct sc92031_priv *priv;
- u32 mac0, mac1;
- unsigned long base_addr;
-
- err = pci_enable_device(pdev);
- if (unlikely(err < 0))
- goto out_enable_device;
-
- pci_set_master(pdev);
-
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (unlikely(err < 0))
- goto out_set_dma_mask;
-
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (unlikely(err < 0))
- goto out_set_dma_mask;
-
- err = pci_request_regions(pdev, SC92031_NAME);
- if (unlikely(err < 0))
- goto out_request_regions;
-
- port_base = pci_iomap(pdev, SC92031_USE_BAR, 0);
- if (unlikely(!port_base)) {
- err = -EIO;
- goto out_iomap;
- }
-
- dev = alloc_etherdev(sizeof(struct sc92031_priv));
- if (unlikely(!dev)) {
- err = -ENOMEM;
- goto out_alloc_etherdev;
- }
-
- pci_set_drvdata(pdev, dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
-
-#if SC92031_USE_BAR == 0
- dev->mem_start = pci_resource_start(pdev, SC92031_USE_BAR);
- dev->mem_end = pci_resource_end(pdev, SC92031_USE_BAR);
-#elif SC92031_USE_BAR == 1
- dev->base_addr = pci_resource_start(pdev, SC92031_USE_BAR);
-#endif
- dev->irq = pdev->irq;
-
- /* faked with skb_copy_and_csum_dev */
- dev->features = NETIF_F_SG | NETIF_F_HIGHDMA |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
-
- dev->netdev_ops = &sc92031_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
- dev->ethtool_ops = &sc92031_ethtool_ops;
-
- priv = netdev_priv(dev);
- spin_lock_init(&priv->lock);
- priv->port_base = port_base;
- priv->pdev = pdev;
- tasklet_init(&priv->tasklet, sc92031_tasklet, (unsigned long)dev);
- /* Fudge tasklet count so the call to sc92031_enable_interrupts at
- * sc92031_open will work correctly */
- tasklet_disable_nosync(&priv->tasklet);
-
- /* PCI PM Wakeup */
- iowrite32((~PM_LongWF & ~PM_LWPTN) | PM_Enable, port_base + PMConfig);
-
- mac0 = ioread32(port_base + MAC0);
- mac1 = ioread32(port_base + MAC0 + 4);
- dev->dev_addr[0] = dev->perm_addr[0] = mac0 >> 24;
- dev->dev_addr[1] = dev->perm_addr[1] = mac0 >> 16;
- dev->dev_addr[2] = dev->perm_addr[2] = mac0 >> 8;
- dev->dev_addr[3] = dev->perm_addr[3] = mac0;
- dev->dev_addr[4] = dev->perm_addr[4] = mac1 >> 8;
- dev->dev_addr[5] = dev->perm_addr[5] = mac1;
-
- err = register_netdev(dev);
- if (err < 0)
- goto out_register_netdev;
-
-#if SC92031_USE_BAR == 0
- base_addr = dev->mem_start;
-#elif SC92031_USE_BAR == 1
- base_addr = dev->base_addr;
-#endif
- printk(KERN_INFO "%s: SC92031 at 0x%lx, %pM, IRQ %d\n", dev->name,
- base_addr, dev->dev_addr, dev->irq);
-
- return 0;
-
-out_register_netdev:
- free_netdev(dev);
-out_alloc_etherdev:
- pci_iounmap(pdev, port_base);
-out_iomap:
- pci_release_regions(pdev);
-out_request_regions:
-out_set_dma_mask:
- pci_disable_device(pdev);
-out_enable_device:
- return err;
-}
-
-static void __devexit sc92031_remove(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct sc92031_priv *priv = netdev_priv(dev);
- void __iomem* port_base = priv->port_base;
-
- unregister_netdev(dev);
- free_netdev(dev);
- pci_iounmap(pdev, port_base);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
-}
-
-static int sc92031_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct sc92031_priv *priv = netdev_priv(dev);
-
- pci_save_state(pdev);
-
- if (!netif_running(dev))
- goto out;
-
- netif_device_detach(dev);
-
- /* Disable interrupts, stop Tx and Rx. */
- sc92031_disable_interrupts(dev);
-
- spin_lock_bh(&priv->lock);
-
- _sc92031_disable_tx_rx(dev);
- _sc92031_tx_clear(dev);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
-
-out:
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
- return 0;
-}
-
-static int sc92031_resume(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct sc92031_priv *priv = netdev_priv(dev);
-
- pci_restore_state(pdev);
- pci_set_power_state(pdev, PCI_D0);
-
- if (!netif_running(dev))
- goto out;
-
- /* Interrupts already disabled by sc92031_suspend */
- spin_lock_bh(&priv->lock);
-
- _sc92031_reset(dev);
- mmiowb();
-
- spin_unlock_bh(&priv->lock);
- sc92031_enable_interrupts(dev);
-
- netif_device_attach(dev);
-
- if (netif_carrier_ok(dev))
- netif_wake_queue(dev);
- else
- netif_tx_disable(dev);
-
-out:
- return 0;
-}
-
-static DEFINE_PCI_DEVICE_TABLE(sc92031_pci_device_id_table) = {
- { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) },
- { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) },
- { PCI_DEVICE(0x1088, 0x2031) },
- { 0, }
-};
-MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table);
-
-static struct pci_driver sc92031_pci_driver = {
- .name = SC92031_NAME,
- .id_table = sc92031_pci_device_id_table,
- .probe = sc92031_probe,
- .remove = __devexit_p(sc92031_remove),
- .suspend = sc92031_suspend,
- .resume = sc92031_resume,
-};
-
-static int __init sc92031_init(void)
-{
- return pci_register_driver(&sc92031_pci_driver);
-}
-
-static void __exit sc92031_exit(void)
-{
- pci_unregister_driver(&sc92031_pci_driver);
-}
-
-module_init(sc92031_init);
-module_exit(sc92031_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>");
-MODULE_DESCRIPTION("Silan SC92031 PCI Fast Ethernet Adapter driver");
projects / openwrt / staging / blogic.git / commitdiff