return 0;
}
+static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ u16 result;
+
+ atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
+
+ return result;
+}
+
+static void mdio_write(struct net_device *netdev, int phy_id, int reg_num,
+ int val)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+
+ atl1_write_phy_reg(&adapter->hw, reg_num, val);
+}
+
+/*
+ * atl1_mii_ioctl -
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ */
+static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ unsigned long flags;
+ int retval;
+
+ if (!netif_running(netdev))
+ return -EINVAL;
+
+ spin_lock_irqsave(&adapter->lock, flags);
+ retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
+ spin_unlock_irqrestore(&adapter->lock, flags);
+
+ return retval;
+}
+
+/*
+ * atl1_ioctl -
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ */
+static int atl1_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ case SIOCGMIIREG:
+ case SIOCSMIIREG:
+ return atl1_mii_ioctl(netdev, ifr, cmd);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
/*
* atl1_setup_mem_resources - allocate Tx / RX descriptor resources
* @adapter: board private structure
}
/*
- * atl1_irq_enable - Enable default interrupt generation settings
+ * atl1_clean_rx_ring - Free RFD Buffers
* @adapter: board private structure
*/
-static void atl1_irq_enable(struct atl1_adapter *adapter)
-{
- iowrite32(IMR_NORMAL_MASK, adapter->hw.hw_addr + REG_IMR);
- ioread32(adapter->hw.hw_addr + REG_IMR);
-}
-
-static void atl1_clear_phy_int(struct atl1_adapter *adapter)
-{
- u16 phy_data;
- unsigned long flags;
-
- spin_lock_irqsave(&adapter->lock, flags);
- atl1_read_phy_reg(&adapter->hw, 19, &phy_data);
- spin_unlock_irqrestore(&adapter->lock, flags);
-}
-
-static void atl1_inc_smb(struct atl1_adapter *adapter)
+static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
{
- struct stats_msg_block *smb = adapter->smb.smb;
-
- /* Fill out the OS statistics structure */
- adapter->soft_stats.rx_packets += smb->rx_ok;
- adapter->soft_stats.tx_packets += smb->tx_ok;
- adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
- adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
- adapter->soft_stats.multicast += smb->rx_mcast;
- adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 +
- smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry);
+ struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+ struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+ struct atl1_buffer *buffer_info;
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned long size;
+ unsigned int i;
- /* Rx Errors */
- adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err +
- smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov +
- smb->rx_rrd_ov + smb->rx_align_err);
- adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
- adapter->soft_stats.rx_length_errors += smb->rx_len_err;
- adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
- adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
- adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov +
- smb->rx_rxf_ov);
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rfd_ring->count; i++) {
+ buffer_info = &rfd_ring->buffer_info[i];
+ if (buffer_info->dma) {
+ pci_unmap_page(pdev, buffer_info->dma,
+ buffer_info->length, PCI_DMA_FROMDEVICE);
+ buffer_info->dma = 0;
+ }
+ if (buffer_info->skb) {
+ dev_kfree_skb(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ }
- adapter->soft_stats.rx_pause += smb->rx_pause;
- adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
- adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
+ size = sizeof(struct atl1_buffer) * rfd_ring->count;
+ memset(rfd_ring->buffer_info, 0, size);
- /* Tx Errors */
- adapter->soft_stats.tx_errors += (smb->tx_late_col +
- smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc);
- adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
- adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
- adapter->soft_stats.tx_window_errors += smb->tx_late_col;
+ /* Zero out the descriptor ring */
+ memset(rfd_ring->desc, 0, rfd_ring->size);
- adapter->soft_stats.excecol += smb->tx_abort_col;
- adapter->soft_stats.deffer += smb->tx_defer;
- adapter->soft_stats.scc += smb->tx_1_col;
- adapter->soft_stats.mcc += smb->tx_2_col;
- adapter->soft_stats.latecol += smb->tx_late_col;
- adapter->soft_stats.tx_underun += smb->tx_underrun;
- adapter->soft_stats.tx_trunc += smb->tx_trunc;
- adapter->soft_stats.tx_pause += smb->tx_pause;
+ rfd_ring->next_to_clean = 0;
+ atomic_set(&rfd_ring->next_to_use, 0);
- adapter->net_stats.rx_packets = adapter->soft_stats.rx_packets;
- adapter->net_stats.tx_packets = adapter->soft_stats.tx_packets;
- adapter->net_stats.rx_bytes = adapter->soft_stats.rx_bytes;
- adapter->net_stats.tx_bytes = adapter->soft_stats.tx_bytes;
- adapter->net_stats.multicast = adapter->soft_stats.multicast;
- adapter->net_stats.collisions = adapter->soft_stats.collisions;
- adapter->net_stats.rx_errors = adapter->soft_stats.rx_errors;
- adapter->net_stats.rx_over_errors =
- adapter->soft_stats.rx_missed_errors;
- adapter->net_stats.rx_length_errors =
- adapter->soft_stats.rx_length_errors;
- adapter->net_stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
- adapter->net_stats.rx_frame_errors =
- adapter->soft_stats.rx_frame_errors;
- adapter->net_stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
- adapter->net_stats.rx_missed_errors =
- adapter->soft_stats.rx_missed_errors;
- adapter->net_stats.tx_errors = adapter->soft_stats.tx_errors;
- adapter->net_stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
- adapter->net_stats.tx_aborted_errors =
- adapter->soft_stats.tx_aborted_errors;
- adapter->net_stats.tx_window_errors =
- adapter->soft_stats.tx_window_errors;
- adapter->net_stats.tx_carrier_errors =
- adapter->soft_stats.tx_carrier_errors;
+ rrd_ring->next_to_use = 0;
+ atomic_set(&rrd_ring->next_to_clean, 0);
}
-static void atl1_rx_checksum(struct atl1_adapter *adapter,
- struct rx_return_desc *rrd, struct sk_buff *skb)
+/*
+ * atl1_clean_tx_ring - Free Tx Buffers
+ * @adapter: board private structure
+ */
+static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
{
+ struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+ struct atl1_buffer *buffer_info;
struct pci_dev *pdev = adapter->pdev;
+ unsigned long size;
+ unsigned int i;
- skb->ip_summed = CHECKSUM_NONE;
+ /* Free all the Tx ring sk_buffs */
+ for (i = 0; i < tpd_ring->count; i++) {
+ buffer_info = &tpd_ring->buffer_info[i];
+ if (buffer_info->dma) {
+ pci_unmap_page(pdev, buffer_info->dma,
+ buffer_info->length, PCI_DMA_TODEVICE);
+ buffer_info->dma = 0;
+ }
+ }
- if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
- if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
- ERR_FLAG_CODE | ERR_FLAG_OV)) {
- adapter->hw_csum_err++;
- dev_printk(KERN_DEBUG, &pdev->dev,
- "rx checksum error\n");
- return;
+ for (i = 0; i < tpd_ring->count; i++) {
+ buffer_info = &tpd_ring->buffer_info[i];
+ if (buffer_info->skb) {
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
}
}
- /* not IPv4 */
- if (!(rrd->pkt_flg & PACKET_FLAG_IPV4))
- /* checksum is invalid, but it's not an IPv4 pkt, so ok */
- return;
+ size = sizeof(struct atl1_buffer) * tpd_ring->count;
+ memset(tpd_ring->buffer_info, 0, size);
- /* IPv4 packet */
- if (likely(!(rrd->err_flg &
- (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- adapter->hw_csum_good++;
- return;
- }
+ /* Zero out the descriptor ring */
+ memset(tpd_ring->desc, 0, tpd_ring->size);
- /* IPv4, but hardware thinks its checksum is wrong */
- dev_printk(KERN_DEBUG, &pdev->dev,
- "hw csum wrong, pkt_flag:%x, err_flag:%x\n",
- rrd->pkt_flg, rrd->err_flg);
- skb->ip_summed = CHECKSUM_COMPLETE;
- skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum);
- adapter->hw_csum_err++;
- return;
+ atomic_set(&tpd_ring->next_to_use, 0);
+ atomic_set(&tpd_ring->next_to_clean, 0);
}
/*
- * atl1_alloc_rx_buffers - Replace used receive buffers
- * @adapter: address of board private structure
+ * atl1_free_ring_resources - Free Tx / RX descriptor Resources
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
*/
-static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
+void atl1_free_ring_resources(struct atl1_adapter *adapter)
{
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct pci_dev *pdev = adapter->pdev;
- struct page *page;
- unsigned long offset;
- struct atl1_buffer *buffer_info, *next_info;
- struct sk_buff *skb;
- u16 num_alloc = 0;
- u16 rfd_next_to_use, next_next;
- struct rx_free_desc *rfd_desc;
+ struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+ struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+ struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+ struct atl1_ring_header *ring_header = &adapter->ring_header;
- next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use);
- if (++next_next == rfd_ring->count)
- next_next = 0;
- buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
- next_info = &rfd_ring->buffer_info[next_next];
+ atl1_clean_tx_ring(adapter);
+ atl1_clean_rx_ring(adapter);
- while (!buffer_info->alloced && !next_info->alloced) {
- if (buffer_info->skb) {
- buffer_info->alloced = 1;
- goto next;
- }
+ kfree(tpd_ring->buffer_info);
+ pci_free_consistent(pdev, ring_header->size, ring_header->desc,
+ ring_header->dma);
- rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
+ tpd_ring->buffer_info = NULL;
+ tpd_ring->desc = NULL;
+ tpd_ring->dma = 0;
- skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
- if (unlikely(!skb)) { /* Better luck next round */
- adapter->net_stats.rx_dropped++;
- break;
+ rfd_ring->buffer_info = NULL;
+ rfd_ring->desc = NULL;
+ rfd_ring->dma = 0;
+
+ rrd_ring->desc = NULL;
+ rrd_ring->dma = 0;
+}
+
+static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
+{
+ u32 value;
+ struct atl1_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ /* Config MAC CTRL Register */
+ value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
+ /* duplex */
+ if (FULL_DUPLEX == adapter->link_duplex)
+ value |= MAC_CTRL_DUPLX;
+ /* speed */
+ value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
+ MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
+ MAC_CTRL_SPEED_SHIFT);
+ /* flow control */
+ value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
+ /* PAD & CRC */
+ value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
+ /* preamble length */
+ value |= (((u32) adapter->hw.preamble_len
+ & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
+ /* vlan */
+ if (adapter->vlgrp)
+ value |= MAC_CTRL_RMV_VLAN;
+ /* rx checksum
+ if (adapter->rx_csum)
+ value |= MAC_CTRL_RX_CHKSUM_EN;
+ */
+ /* filter mode */
+ value |= MAC_CTRL_BC_EN;
+ if (netdev->flags & IFF_PROMISC)
+ value |= MAC_CTRL_PROMIS_EN;
+ else if (netdev->flags & IFF_ALLMULTI)
+ value |= MAC_CTRL_MC_ALL_EN;
+ /* value |= MAC_CTRL_LOOPBACK; */
+ iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
+}
+
+/*
+ * atl1_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atl1_set_mac(struct net_device *netdev, void *p)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (netif_running(netdev))
+ return -EBUSY;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
+
+ atl1_set_mac_addr(&adapter->hw);
+ return 0;
+}
+
+static u32 atl1_check_link(struct atl1_adapter *adapter)
+{
+ struct atl1_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u32 ret_val;
+ u16 speed, duplex, phy_data;
+ int reconfig = 0;
+
+ /* MII_BMSR must read twice */
+ atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
+ atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
+ if (!(phy_data & BMSR_LSTATUS)) { /* link down */
+ if (netif_carrier_ok(netdev)) { /* old link state: Up */
+ dev_info(&adapter->pdev->dev, "link is down\n");
+ adapter->link_speed = SPEED_0;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
}
+ return ATL1_SUCCESS;
+ }
- /*
- * Make buffer alignment 2 beyond a 16 byte boundary
- * this will result in a 16 byte aligned IP header after
- * the 14 byte MAC header is removed
- */
- skb_reserve(skb, NET_IP_ALIGN);
+ /* Link Up */
+ ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
+ if (ret_val)
+ return ret_val;
- buffer_info->alloced = 1;
- buffer_info->skb = skb;
- buffer_info->length = (u16) adapter->rx_buffer_len;
- page = virt_to_page(skb->data);
- offset = (unsigned long)skb->data & ~PAGE_MASK;
- buffer_info->dma = pci_map_page(pdev, page, offset,
- adapter->rx_buffer_len,
- PCI_DMA_FROMDEVICE);
- rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
- rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len);
- rfd_desc->coalese = 0;
+ switch (hw->media_type) {
+ case MEDIA_TYPE_1000M_FULL:
+ if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
+ reconfig = 1;
+ break;
+ case MEDIA_TYPE_100M_FULL:
+ if (speed != SPEED_100 || duplex != FULL_DUPLEX)
+ reconfig = 1;
+ break;
+ case MEDIA_TYPE_100M_HALF:
+ if (speed != SPEED_100 || duplex != HALF_DUPLEX)
+ reconfig = 1;
+ break;
+ case MEDIA_TYPE_10M_FULL:
+ if (speed != SPEED_10 || duplex != FULL_DUPLEX)
+ reconfig = 1;
+ break;
+ case MEDIA_TYPE_10M_HALF:
+ if (speed != SPEED_10 || duplex != HALF_DUPLEX)
+ reconfig = 1;
+ break;
+ }
-next:
- rfd_next_to_use = next_next;
- if (unlikely(++next_next == rfd_ring->count))
- next_next = 0;
+ /* link result is our setting */
+ if (!reconfig) {
+ if (adapter->link_speed != speed
+ || adapter->link_duplex != duplex) {
+ adapter->link_speed = speed;
+ adapter->link_duplex = duplex;
+ atl1_setup_mac_ctrl(adapter);
+ dev_info(&adapter->pdev->dev,
+ "%s link is up %d Mbps %s\n",
+ netdev->name, adapter->link_speed,
+ adapter->link_duplex == FULL_DUPLEX ?
+ "full duplex" : "half duplex");
+ }
+ if (!netif_carrier_ok(netdev)) { /* Link down -> Up */
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ }
+ return ATL1_SUCCESS;
+ }
- buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
- next_info = &rfd_ring->buffer_info[next_next];
- num_alloc++;
+ /* change orignal link status */
+ if (netif_carrier_ok(netdev)) {
+ adapter->link_speed = SPEED_0;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
}
- if (num_alloc) {
- /*
- * Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64).
- */
- wmb();
- atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use);
+ if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
+ hw->media_type != MEDIA_TYPE_1000M_FULL) {
+ switch (hw->media_type) {
+ case MEDIA_TYPE_100M_FULL:
+ phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+ MII_CR_RESET;
+ break;
+ case MEDIA_TYPE_100M_HALF:
+ phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+ break;
+ case MEDIA_TYPE_10M_FULL:
+ phy_data =
+ MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+ break;
+ default: /* MEDIA_TYPE_10M_HALF: */
+ phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+ break;
+ }
+ atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+ return ATL1_SUCCESS;
}
- return num_alloc;
+
+ /* auto-neg, insert timer to re-config phy */
+ if (!adapter->phy_timer_pending) {
+ adapter->phy_timer_pending = true;
+ mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ);
+ }
+
+ return ATL1_SUCCESS;
}
-static void atl1_clean_alloc_flag(struct atl1_adapter *adapter,
- struct rx_return_desc *rrd, u16 offset)
+static void atl1_check_for_link(struct atl1_adapter *adapter)
{
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+ struct net_device *netdev = adapter->netdev;
+ u16 phy_data = 0;
- while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) {
- rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0;
- if (++rfd_ring->next_to_clean == rfd_ring->count) {
- rfd_ring->next_to_clean = 0;
+ spin_lock(&adapter->lock);
+ adapter->phy_timer_pending = false;
+ atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+ atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+ spin_unlock(&adapter->lock);
+
+ /* notify upper layer link down ASAP */
+ if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */
+ if (netif_carrier_ok(netdev)) { /* old link state: Up */
+ dev_info(&adapter->pdev->dev, "%s link is down\n",
+ netdev->name);
+ adapter->link_speed = SPEED_0;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
}
}
+ schedule_work(&adapter->link_chg_task);
}
-static void atl1_update_rfd_index(struct atl1_adapter *adapter,
- struct rx_return_desc *rrd)
+/*
+ * atl1_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated. This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ */
+static void atl1_set_multi(struct net_device *netdev)
{
- u16 num_buf;
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ struct atl1_hw *hw = &adapter->hw;
+ struct dev_mc_list *mc_ptr;
+ u32 rctl;
+ u32 hash_value;
- num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) /
- adapter->rx_buffer_len;
- if (rrd->num_buf == num_buf)
- /* clean alloc flag for bad rrd */
- atl1_clean_alloc_flag(adapter, rrd, num_buf);
+ /* Check for Promiscuous and All Multicast modes */
+ rctl = ioread32(hw->hw_addr + REG_MAC_CTRL);
+ if (netdev->flags & IFF_PROMISC)
+ rctl |= MAC_CTRL_PROMIS_EN;
+ else if (netdev->flags & IFF_ALLMULTI) {
+ rctl |= MAC_CTRL_MC_ALL_EN;
+ rctl &= ~MAC_CTRL_PROMIS_EN;
+ } else
+ rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
+
+ iowrite32(rctl, hw->hw_addr + REG_MAC_CTRL);
+
+ /* clear the old settings from the multicast hash table */
+ iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
+ iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+
+ /* compute mc addresses' hash value ,and put it into hash table */
+ for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
+ hash_value = atl1_hash_mc_addr(hw, mc_ptr->dmi_addr);
+ atl1_hash_set(hw, hash_value);
+ }
}
-static void atl1_intr_rx(struct atl1_adapter *adapter)
+/*
+ * atl1_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atl1_change_mtu(struct net_device *netdev, int new_mtu)
{
- int i, count;
- u16 length;
- u16 rrd_next_to_clean;
- u32 value;
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_buffer *buffer_info;
- struct rx_return_desc *rrd;
- struct sk_buff *skb;
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ int old_mtu = netdev->mtu;
+ int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
- count = 0;
+ if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
+ (max_frame > MAX_JUMBO_FRAME_SIZE)) {
+ dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
+ return -EINVAL;
+ }
- rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean);
+ adapter->hw.max_frame_size = max_frame;
+ adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3;
+ adapter->rx_buffer_len = (max_frame + 7) & ~7;
+ adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8;
- while (1) {
- rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean);
- i = 1;
- if (likely(rrd->xsz.valid)) { /* packet valid */
-chk_rrd:
- /* check rrd status */
- if (likely(rrd->num_buf == 1))
- goto rrd_ok;
+ netdev->mtu = new_mtu;
+ if ((old_mtu != new_mtu) && netif_running(netdev)) {
+ atl1_down(adapter);
+ atl1_up(adapter);
+ }
- /* rrd seems to be bad */
- if (unlikely(i-- > 0)) {
- /* rrd may not be DMAed completely */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "incomplete RRD DMA transfer\n");
- udelay(1);
- goto chk_rrd;
- }
- /* bad rrd */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "bad RRD\n");
- /* see if update RFD index */
- if (rrd->num_buf > 1)
- atl1_update_rfd_index(adapter, rrd);
+ return 0;
+}
- /* update rrd */
- rrd->xsz.valid = 0;
- if (++rrd_next_to_clean == rrd_ring->count)
- rrd_next_to_clean = 0;
- count++;
- continue;
- } else { /* current rrd still not be updated */
+static void set_flow_ctrl_old(struct atl1_adapter *adapter)
+{
+ u32 hi, lo, value;
- break;
- }
-rrd_ok:
- /* clean alloc flag for bad rrd */
- atl1_clean_alloc_flag(adapter, rrd, 0);
+ /* RFD Flow Control */
+ value = adapter->rfd_ring.count;
+ hi = value / 16;
+ if (hi < 2)
+ hi = 2;
+ lo = value * 7 / 8;
- buffer_info = &rfd_ring->buffer_info[rrd->buf_indx];
- if (++rfd_ring->next_to_clean == rfd_ring->count)
- rfd_ring->next_to_clean = 0;
+ value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
+ ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
+ iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
- /* update rrd next to clean */
- if (++rrd_next_to_clean == rrd_ring->count)
- rrd_next_to_clean = 0;
- count++;
+ /* RRD Flow Control */
+ value = adapter->rrd_ring.count;
+ lo = value / 16;
+ hi = value * 7 / 8;
+ if (lo < 2)
+ lo = 2;
+ value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
+ ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
+ iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
+}
- if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
- if (!(rrd->err_flg &
- (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM
- | ERR_FLAG_LEN))) {
- /* packet error, don't need upstream */
- buffer_info->alloced = 0;
- rrd->xsz.valid = 0;
- continue;
- }
- }
+static void set_flow_ctrl_new(struct atl1_hw *hw)
+{
+ u32 hi, lo, value;
+
+ /* RXF Flow Control */
+ value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
+ lo = value / 16;
+ if (lo < 192)
+ lo = 192;
+ hi = value * 7 / 8;
+ if (hi < lo)
+ hi = lo + 16;
+ value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
+ ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
+
+ /* RRD Flow Control */
+ value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
+ lo = value / 8;
+ hi = value * 7 / 8;
+ if (lo < 2)
+ lo = 2;
+ if (hi < lo)
+ hi = lo + 3;
+ value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
+ ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
+}
+
+/*
+ * atl1_configure - Configure Transmit&Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx /Rx unit of the MAC after a reset.
+ */
+static u32 atl1_configure(struct atl1_adapter *adapter)
+{
+ struct atl1_hw *hw = &adapter->hw;
+ u32 value;
+
+ /* clear interrupt status */
+ iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
+
+ /* set MAC Address */
+ value = (((u32) hw->mac_addr[2]) << 24) |
+ (((u32) hw->mac_addr[3]) << 16) |
+ (((u32) hw->mac_addr[4]) << 8) |
+ (((u32) hw->mac_addr[5]));
+ iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
+ value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
+ iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
+
+ /* tx / rx ring */
- /* Good Receive */
- pci_unmap_page(adapter->pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_FROMDEVICE);
- skb = buffer_info->skb;
- length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size);
+ /* HI base address */
+ iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
+ hw->hw_addr + REG_DESC_BASE_ADDR_HI);
+ /* LO base address */
+ iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
+ hw->hw_addr + REG_DESC_RFD_ADDR_LO);
+ iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
+ hw->hw_addr + REG_DESC_RRD_ADDR_LO);
+ iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
+ hw->hw_addr + REG_DESC_TPD_ADDR_LO);
+ iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
+ hw->hw_addr + REG_DESC_CMB_ADDR_LO);
+ iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
+ hw->hw_addr + REG_DESC_SMB_ADDR_LO);
- skb_put(skb, length - ETHERNET_FCS_SIZE);
+ /* element count */
+ value = adapter->rrd_ring.count;
+ value <<= 16;
+ value += adapter->rfd_ring.count;
+ iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
+ iowrite32(adapter->tpd_ring.count, hw->hw_addr +
+ REG_DESC_TPD_RING_SIZE);
- /* Receive Checksum Offload */
- atl1_rx_checksum(adapter, rrd, skb);
- skb->protocol = eth_type_trans(skb, adapter->netdev);
+ /* Load Ptr */
+ iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
- if (adapter->vlgrp && (rrd->pkt_flg & PACKET_FLAG_VLAN_INS)) {
- u16 vlan_tag = (rrd->vlan_tag >> 4) |
- ((rrd->vlan_tag & 7) << 13) |
- ((rrd->vlan_tag & 8) << 9);
- vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag);
- } else
- netif_rx(skb);
+ /* config Mailbox */
+ value = ((atomic_read(&adapter->tpd_ring.next_to_use)
+ & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
+ ((atomic_read(&adapter->rrd_ring.next_to_clean)
+ & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
+ ((atomic_read(&adapter->rfd_ring.next_to_use)
+ & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_MAILBOX);
- /* let protocol layer free skb */
- buffer_info->skb = NULL;
- buffer_info->alloced = 0;
- rrd->xsz.valid = 0;
+ /* config IPG/IFG */
+ value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
+ << MAC_IPG_IFG_IPGT_SHIFT) |
+ (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
+ << MAC_IPG_IFG_MIFG_SHIFT) |
+ (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
+ << MAC_IPG_IFG_IPGR1_SHIFT) |
+ (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
+ << MAC_IPG_IFG_IPGR2_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
- adapter->netdev->last_rx = jiffies;
- }
+ /* config Half-Duplex Control */
+ value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
+ (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
+ << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
+ MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
+ (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
+ (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
+ << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
- atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean);
+ /* set Interrupt Moderator Timer */
+ iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
+ iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
- atl1_alloc_rx_buffers(adapter);
+ /* set Interrupt Clear Timer */
+ iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
- /* update mailbox ? */
- if (count) {
- u32 tpd_next_to_use;
- u32 rfd_next_to_use;
- u32 rrd_next_to_clean;
+ /* set MTU, 4 : VLAN */
+ iowrite32(hw->max_frame_size + 4, hw->hw_addr + REG_MTU);
- spin_lock(&adapter->mb_lock);
+ /* jumbo size & rrd retirement timer */
+ value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
+ << RXQ_JMBOSZ_TH_SHIFT) |
+ (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
+ << RXQ_JMBO_LKAH_SHIFT) |
+ (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
+ << RXQ_RRD_TIMER_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
- tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
- rfd_next_to_use =
- atomic_read(&adapter->rfd_ring.next_to_use);
- rrd_next_to_clean =
- atomic_read(&adapter->rrd_ring.next_to_clean);
- value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
- MB_RFD_PROD_INDX_SHIFT) |
- ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
- MB_RRD_CONS_INDX_SHIFT) |
- ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
- MB_TPD_PROD_INDX_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
- spin_unlock(&adapter->mb_lock);
+ /* Flow Control */
+ switch (hw->dev_rev) {
+ case 0x8001:
+ case 0x9001:
+ case 0x9002:
+ case 0x9003:
+ set_flow_ctrl_old(adapter);
+ break;
+ default:
+ set_flow_ctrl_new(hw);
+ break;
}
-}
-static void atl1_intr_tx(struct atl1_adapter *adapter)
-{
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_buffer *buffer_info;
- u16 sw_tpd_next_to_clean;
- u16 cmb_tpd_next_to_clean;
+ /* config TXQ */
+ value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
+ << TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
+ (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
+ << TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
+ (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
+ << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE |
+ TXQ_CTRL_EN;
+ iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
- sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean);
- cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx);
+ /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
+ value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
+ << TX_JUMBO_TASK_TH_SHIFT) |
+ (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
+ << TX_TPD_MIN_IPG_SHIFT);
+ iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
- while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) {
- struct tx_packet_desc *tpd;
+ /* config RXQ */
+ value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
+ << RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
+ (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
+ << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
+ (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
+ << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN |
+ RXQ_CTRL_EN;
+ iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
- tpd = ATL1_TPD_DESC(tpd_ring, sw_tpd_next_to_clean);
- buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean];
- if (buffer_info->dma) {
- pci_unmap_page(adapter->pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
- }
+ /* config DMA Engine */
+ value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
+ << DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
+ ((((u32) hw->dmaw_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
+ << DMA_CTRL_DMAR_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN |
+ DMA_CTRL_DMAW_EN;
+ value |= (u32) hw->dma_ord;
+ if (atl1_rcb_128 == hw->rcb_value)
+ value |= DMA_CTRL_RCB_VALUE;
+ iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
- if (buffer_info->skb) {
- dev_kfree_skb_irq(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- tpd->buffer_addr = 0;
- tpd->desc.data = 0;
+ /* config CMB / SMB */
+ value = hw->cmb_rrd | ((u32) hw->cmb_tpd << 16);
+ iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
+ value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
+ iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
+ iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
- if (++sw_tpd_next_to_clean == tpd_ring->count)
- sw_tpd_next_to_clean = 0;
- }
- atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean);
+ /* --- enable CMB / SMB */
+ value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
+ iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
- if (netif_queue_stopped(adapter->netdev)
- && netif_carrier_ok(adapter->netdev))
- netif_wake_queue(adapter->netdev);
+ value = ioread32(adapter->hw.hw_addr + REG_ISR);
+ if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
+ value = 1; /* config failed */
+ else
+ value = 0;
+
+ /* clear all interrupt status */
+ iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
+ iowrite32(0, adapter->hw.hw_addr + REG_ISR);
+ return value;
}
-static void atl1_check_for_link(struct atl1_adapter *adapter)
+/*
+ * atl1_pcie_patch - Patch for PCIE module
+ */
+static void atl1_pcie_patch(struct atl1_adapter *adapter)
{
- struct net_device *netdev = adapter->netdev;
- u16 phy_data = 0;
-
- spin_lock(&adapter->lock);
- adapter->phy_timer_pending = false;
- atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
- atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
- spin_unlock(&adapter->lock);
+ u32 value;
- /* notify upper layer link down ASAP */
- if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */
- if (netif_carrier_ok(netdev)) { /* old link state: Up */
- dev_info(&adapter->pdev->dev, "%s link is down\n",
- netdev->name);
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- }
- schedule_work(&adapter->link_chg_task);
+ /* much vendor magic here */
+ value = 0x6500;
+ iowrite32(value, adapter->hw.hw_addr + 0x12FC);
+ /* pcie flow control mode change */
+ value = ioread32(adapter->hw.hw_addr + 0x1008);
+ value |= 0x8000;
+ iowrite32(value, adapter->hw.hw_addr + 0x1008);
}
/*
- * atl1_intr - Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- * @pt_regs: CPU registers structure
+ * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
+ * on PCI Command register is disable.
+ * The function enable this bit.
+ * Brackett, 2006/03/15
*/
-static irqreturn_t atl1_intr(int irq, void *data)
+static void atl1_via_workaround(struct atl1_adapter *adapter)
{
- struct atl1_adapter *adapter = netdev_priv(data);
- u32 status;
- u8 update_rx;
- int max_ints = 10;
-
- status = adapter->cmb.cmb->int_stats;
- if (!status)
- return IRQ_NONE;
-
- update_rx = 0;
+ unsigned long value;
- do {
- /* clear CMB interrupt status at once */
- adapter->cmb.cmb->int_stats = 0;
+ value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
+ if (value & PCI_COMMAND_INTX_DISABLE)
+ value &= ~PCI_COMMAND_INTX_DISABLE;
+ iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
+}
- if (status & ISR_GPHY) /* clear phy status */
- atl1_clear_phy_int(adapter);
+/*
+ * atl1_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ */
+static void atl1_irq_enable(struct atl1_adapter *adapter)
+{
+ iowrite32(IMR_NORMAL_MASK, adapter->hw.hw_addr + REG_IMR);
+ ioread32(adapter->hw.hw_addr + REG_IMR);
+}
- /* clear ISR status, and Enable CMB DMA/Disable Interrupt */
- iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
+/*
+ * atl1_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ */
+static void atl1_irq_disable(struct atl1_adapter *adapter)
+{
+ iowrite32(0, adapter->hw.hw_addr + REG_IMR);
+ ioread32(adapter->hw.hw_addr + REG_IMR);
+ synchronize_irq(adapter->pdev->irq);
+}
- /* check if SMB intr */
- if (status & ISR_SMB)
- atl1_inc_smb(adapter);
+static void atl1_clear_phy_int(struct atl1_adapter *adapter)
+{
+ u16 phy_data;
+ unsigned long flags;
- /* check if PCIE PHY Link down */
- if (status & ISR_PHY_LINKDOWN) {
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "pcie phy link down %x\n", status);
- if (netif_running(adapter->netdev)) { /* reset MAC */
- iowrite32(0, adapter->hw.hw_addr + REG_IMR);
- schedule_work(&adapter->pcie_dma_to_rst_task);
- return IRQ_HANDLED;
- }
- }
+ spin_lock_irqsave(&adapter->lock, flags);
+ atl1_read_phy_reg(&adapter->hw, 19, &phy_data);
+ spin_unlock_irqrestore(&adapter->lock, flags);
+}
- /* check if DMA read/write error ? */
- if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "pcie DMA r/w error (status = 0x%x)\n",
- status);
- iowrite32(0, adapter->hw.hw_addr + REG_IMR);
- schedule_work(&adapter->pcie_dma_to_rst_task);
- return IRQ_HANDLED;
- }
+static void atl1_inc_smb(struct atl1_adapter *adapter)
+{
+ struct stats_msg_block *smb = adapter->smb.smb;
- /* link event */
- if (status & ISR_GPHY) {
- adapter->soft_stats.tx_carrier_errors++;
- atl1_check_for_link(adapter);
- }
+ /* Fill out the OS statistics structure */
+ adapter->soft_stats.rx_packets += smb->rx_ok;
+ adapter->soft_stats.tx_packets += smb->tx_ok;
+ adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
+ adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
+ adapter->soft_stats.multicast += smb->rx_mcast;
+ adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 +
+ smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry);
- /* transmit event */
- if (status & ISR_CMB_TX)
- atl1_intr_tx(adapter);
+ /* Rx Errors */
+ adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err +
+ smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov +
+ smb->rx_rrd_ov + smb->rx_align_err);
+ adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
+ adapter->soft_stats.rx_length_errors += smb->rx_len_err;
+ adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
+ adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
+ adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov +
+ smb->rx_rxf_ov);
- /* rx exception */
- if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
- ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
- ISR_HOST_RRD_OV | ISR_CMB_RX))) {
- if (status & (ISR_RXF_OV | ISR_RFD_UNRUN |
- ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
- ISR_HOST_RRD_OV))
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "rx exception, ISR = 0x%x\n", status);
- atl1_intr_rx(adapter);
- }
+ adapter->soft_stats.rx_pause += smb->rx_pause;
+ adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
+ adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
- if (--max_ints < 0)
- break;
+ /* Tx Errors */
+ adapter->soft_stats.tx_errors += (smb->tx_late_col +
+ smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc);
+ adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
+ adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
+ adapter->soft_stats.tx_window_errors += smb->tx_late_col;
- } while ((status = adapter->cmb.cmb->int_stats));
+ adapter->soft_stats.excecol += smb->tx_abort_col;
+ adapter->soft_stats.deffer += smb->tx_defer;
+ adapter->soft_stats.scc += smb->tx_1_col;
+ adapter->soft_stats.mcc += smb->tx_2_col;
+ adapter->soft_stats.latecol += smb->tx_late_col;
+ adapter->soft_stats.tx_underun += smb->tx_underrun;
+ adapter->soft_stats.tx_trunc += smb->tx_trunc;
+ adapter->soft_stats.tx_pause += smb->tx_pause;
- /* re-enable Interrupt */
- iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);
- return IRQ_HANDLED;
+ adapter->net_stats.rx_packets = adapter->soft_stats.rx_packets;
+ adapter->net_stats.tx_packets = adapter->soft_stats.tx_packets;
+ adapter->net_stats.rx_bytes = adapter->soft_stats.rx_bytes;
+ adapter->net_stats.tx_bytes = adapter->soft_stats.tx_bytes;
+ adapter->net_stats.multicast = adapter->soft_stats.multicast;
+ adapter->net_stats.collisions = adapter->soft_stats.collisions;
+ adapter->net_stats.rx_errors = adapter->soft_stats.rx_errors;
+ adapter->net_stats.rx_over_errors =
+ adapter->soft_stats.rx_missed_errors;
+ adapter->net_stats.rx_length_errors =
+ adapter->soft_stats.rx_length_errors;
+ adapter->net_stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
+ adapter->net_stats.rx_frame_errors =
+ adapter->soft_stats.rx_frame_errors;
+ adapter->net_stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
+ adapter->net_stats.rx_missed_errors =
+ adapter->soft_stats.rx_missed_errors;
+ adapter->net_stats.tx_errors = adapter->soft_stats.tx_errors;
+ adapter->net_stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
+ adapter->net_stats.tx_aborted_errors =
+ adapter->soft_stats.tx_aborted_errors;
+ adapter->net_stats.tx_window_errors =
+ adapter->soft_stats.tx_window_errors;
+ adapter->net_stats.tx_carrier_errors =
+ adapter->soft_stats.tx_carrier_errors;
}
/*
- * atl1_set_multi - Multicast and Promiscuous mode set
+ * atl1_get_stats - Get System Network Statistics
* @netdev: network interface device structure
*
- * The set_multi entry point is called whenever the multicast address
- * list or the network interface flags are updated. This routine is
- * responsible for configuring the hardware for proper multicast,
- * promiscuous mode, and all-multi behavior.
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
*/
-static void atl1_set_multi(struct net_device *netdev)
+static struct net_device_stats *atl1_get_stats(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
- struct atl1_hw *hw = &adapter->hw;
- struct dev_mc_list *mc_ptr;
- u32 rctl;
- u32 hash_value;
+ return &adapter->net_stats;
+}
- /* Check for Promiscuous and All Multicast modes */
- rctl = ioread32(hw->hw_addr + REG_MAC_CTRL);
- if (netdev->flags & IFF_PROMISC)
- rctl |= MAC_CTRL_PROMIS_EN;
- else if (netdev->flags & IFF_ALLMULTI) {
- rctl |= MAC_CTRL_MC_ALL_EN;
- rctl &= ~MAC_CTRL_PROMIS_EN;
- } else
- rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
+static void atl1_update_mailbox(struct atl1_adapter *adapter)
+{
+ unsigned long flags;
+ u32 tpd_next_to_use;
+ u32 rfd_next_to_use;
+ u32 rrd_next_to_clean;
+ u32 value;
- iowrite32(rctl, hw->hw_addr + REG_MAC_CTRL);
+ spin_lock_irqsave(&adapter->mb_lock, flags);
- /* clear the old settings from the multicast hash table */
- iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
- iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+ tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
+ rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
+ rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
- /* compute mc addresses' hash value ,and put it into hash table */
- for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
- hash_value = atl1_hash_mc_addr(hw, mc_ptr->dmi_addr);
- atl1_hash_set(hw, hash_value);
- }
-}
+ value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
+ MB_RFD_PROD_INDX_SHIFT) |
+ ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
+ MB_RRD_CONS_INDX_SHIFT) |
+ ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
+ MB_TPD_PROD_INDX_SHIFT);
+ iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
-static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
-{
- u32 value;
- struct atl1_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- /* Config MAC CTRL Register */
- value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
- /* duplex */
- if (FULL_DUPLEX == adapter->link_duplex)
- value |= MAC_CTRL_DUPLX;
- /* speed */
- value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
- MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
- MAC_CTRL_SPEED_SHIFT);
- /* flow control */
- value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
- /* PAD & CRC */
- value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
- /* preamble length */
- value |= (((u32) adapter->hw.preamble_len
- & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
- /* vlan */
- if (adapter->vlgrp)
- value |= MAC_CTRL_RMV_VLAN;
- /* rx checksum
- if (adapter->rx_csum)
- value |= MAC_CTRL_RX_CHKSUM_EN;
- */
- /* filter mode */
- value |= MAC_CTRL_BC_EN;
- if (netdev->flags & IFF_PROMISC)
- value |= MAC_CTRL_PROMIS_EN;
- else if (netdev->flags & IFF_ALLMULTI)
- value |= MAC_CTRL_MC_ALL_EN;
- /* value |= MAC_CTRL_LOOPBACK; */
- iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
+ spin_unlock_irqrestore(&adapter->mb_lock, flags);
}
-static u32 atl1_check_link(struct atl1_adapter *adapter)
-{
- struct atl1_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u32 ret_val;
- u16 speed, duplex, phy_data;
- int reconfig = 0;
-
- /* MII_BMSR must read twice */
- atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
- atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
- if (!(phy_data & BMSR_LSTATUS)) { /* link down */
- if (netif_carrier_ok(netdev)) { /* old link state: Up */
- dev_info(&adapter->pdev->dev, "link is down\n");
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
+static void atl1_clean_alloc_flag(struct atl1_adapter *adapter,
+ struct rx_return_desc *rrd, u16 offset)
+{
+ struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+
+ while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) {
+ rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0;
+ if (++rfd_ring->next_to_clean == rfd_ring->count) {
+ rfd_ring->next_to_clean = 0;
}
- return ATL1_SUCCESS;
}
+}
- /* Link Up */
- ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
- if (ret_val)
- return ret_val;
+static void atl1_update_rfd_index(struct atl1_adapter *adapter,
+ struct rx_return_desc *rrd)
+{
+ u16 num_buf;
- switch (hw->media_type) {
- case MEDIA_TYPE_1000M_FULL:
- if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_100M_FULL:
- if (speed != SPEED_100 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_100M_HALF:
- if (speed != SPEED_100 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_FULL:
- if (speed != SPEED_10 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_HALF:
- if (speed != SPEED_10 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- }
+ num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) /
+ adapter->rx_buffer_len;
+ if (rrd->num_buf == num_buf)
+ /* clean alloc flag for bad rrd */
+ atl1_clean_alloc_flag(adapter, rrd, num_buf);
+}
- /* link result is our setting */
- if (!reconfig) {
- if (adapter->link_speed != speed
- || adapter->link_duplex != duplex) {
- adapter->link_speed = speed;
- adapter->link_duplex = duplex;
- atl1_setup_mac_ctrl(adapter);
- dev_info(&adapter->pdev->dev,
- "%s link is up %d Mbps %s\n",
- netdev->name, adapter->link_speed,
- adapter->link_duplex == FULL_DUPLEX ?
- "full duplex" : "half duplex");
- }
- if (!netif_carrier_ok(netdev)) { /* Link down -> Up */
- netif_carrier_on(netdev);
- netif_wake_queue(netdev);
- }
- return ATL1_SUCCESS;
- }
+static void atl1_rx_checksum(struct atl1_adapter *adapter,
+ struct rx_return_desc *rrd, struct sk_buff *skb)
+{
+ struct pci_dev *pdev = adapter->pdev;
- /* change orignal link status */
- if (netif_carrier_ok(netdev)) {
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
+ skb->ip_summed = CHECKSUM_NONE;
- if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
- hw->media_type != MEDIA_TYPE_1000M_FULL) {
- switch (hw->media_type) {
- case MEDIA_TYPE_100M_FULL:
- phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
- MII_CR_RESET;
- break;
- case MEDIA_TYPE_100M_HALF:
- phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
- break;
- case MEDIA_TYPE_10M_FULL:
- phy_data =
- MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- default: /* MEDIA_TYPE_10M_HALF: */
- phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
- break;
+ if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
+ if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
+ ERR_FLAG_CODE | ERR_FLAG_OV)) {
+ adapter->hw_csum_err++;
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "rx checksum error\n");
+ return;
}
- atl1_write_phy_reg(hw, MII_BMCR, phy_data);
- return ATL1_SUCCESS;
}
- /* auto-neg, insert timer to re-config phy */
- if (!adapter->phy_timer_pending) {
- adapter->phy_timer_pending = true;
- mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ);
+ /* not IPv4 */
+ if (!(rrd->pkt_flg & PACKET_FLAG_IPV4))
+ /* checksum is invalid, but it's not an IPv4 pkt, so ok */
+ return;
+
+ /* IPv4 packet */
+ if (likely(!(rrd->err_flg &
+ (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ adapter->hw_csum_good++;
+ return;
}
- return ATL1_SUCCESS;
+ /* IPv4, but hardware thinks its checksum is wrong */
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "hw csum wrong, pkt_flag:%x, err_flag:%x\n",
+ rrd->pkt_flg, rrd->err_flg);
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum);
+ adapter->hw_csum_err++;
+ return;
}
-static void set_flow_ctrl_old(struct atl1_adapter *adapter)
+/*
+ * atl1_alloc_rx_buffers - Replace used receive buffers
+ * @adapter: address of board private structure
+ */
+static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
{
- u32 hi, lo, value;
+ struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct page *page;
+ unsigned long offset;
+ struct atl1_buffer *buffer_info, *next_info;
+ struct sk_buff *skb;
+ u16 num_alloc = 0;
+ u16 rfd_next_to_use, next_next;
+ struct rx_free_desc *rfd_desc;
- /* RFD Flow Control */
- value = adapter->rfd_ring.count;
- hi = value / 16;
- if (hi < 2)
- hi = 2;
- lo = value * 7 / 8;
+ next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use);
+ if (++next_next == rfd_ring->count)
+ next_next = 0;
+ buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
+ next_info = &rfd_ring->buffer_info[next_next];
- value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
+ while (!buffer_info->alloced && !next_info->alloced) {
+ if (buffer_info->skb) {
+ buffer_info->alloced = 1;
+ goto next;
+ }
- /* RRD Flow Control */
- value = adapter->rrd_ring.count;
- lo = value / 16;
- hi = value * 7 / 8;
- if (lo < 2)
- lo = 2;
- value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
-}
+ rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
-static void set_flow_ctrl_new(struct atl1_hw *hw)
-{
- u32 hi, lo, value;
+ skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
+ if (unlikely(!skb)) { /* Better luck next round */
+ adapter->net_stats.rx_dropped++;
+ break;
+ }
- /* RXF Flow Control */
- value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
- lo = value / 16;
- if (lo < 192)
- lo = 192;
- hi = value * 7 / 8;
- if (hi < lo)
- hi = lo + 16;
- value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
+ /*
+ * Make buffer alignment 2 beyond a 16 byte boundary
+ * this will result in a 16 byte aligned IP header after
+ * the 14 byte MAC header is removed
+ */
+ skb_reserve(skb, NET_IP_ALIGN);
- /* RRD Flow Control */
- value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
- lo = value / 8;
- hi = value * 7 / 8;
- if (lo < 2)
- lo = 2;
- if (hi < lo)
- hi = lo + 3;
- value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
-}
+ buffer_info->alloced = 1;
+ buffer_info->skb = skb;
+ buffer_info->length = (u16) adapter->rx_buffer_len;
+ page = virt_to_page(skb->data);
+ offset = (unsigned long)skb->data & ~PAGE_MASK;
+ buffer_info->dma = pci_map_page(pdev, page, offset,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+ rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+ rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len);
+ rfd_desc->coalese = 0;
-/*
- * atl1_configure - Configure Transmit&Receive Unit after Reset
- * @adapter: board private structure
- *
- * Configure the Tx /Rx unit of the MAC after a reset.
- */
-static u32 atl1_configure(struct atl1_adapter *adapter)
-{
- struct atl1_hw *hw = &adapter->hw;
- u32 value;
+next:
+ rfd_next_to_use = next_next;
+ if (unlikely(++next_next == rfd_ring->count))
+ next_next = 0;
- /* clear interrupt status */
- iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
+ buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
+ next_info = &rfd_ring->buffer_info[next_next];
+ num_alloc++;
+ }
- /* set MAC Address */
- value = (((u32) hw->mac_addr[2]) << 24) |
- (((u32) hw->mac_addr[3]) << 16) |
- (((u32) hw->mac_addr[4]) << 8) |
- (((u32) hw->mac_addr[5]));
- iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
- value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
- iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
+ if (num_alloc) {
+ /*
+ * Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+ atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use);
+ }
+ return num_alloc;
+}
- /* tx / rx ring */
+static void atl1_intr_rx(struct atl1_adapter *adapter)
+{
+ int i, count;
+ u16 length;
+ u16 rrd_next_to_clean;
+ u32 value;
+ struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+ struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+ struct atl1_buffer *buffer_info;
+ struct rx_return_desc *rrd;
+ struct sk_buff *skb;
- /* HI base address */
- iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
- hw->hw_addr + REG_DESC_BASE_ADDR_HI);
- /* LO base address */
- iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_RFD_ADDR_LO);
- iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_RRD_ADDR_LO);
- iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_TPD_ADDR_LO);
- iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_CMB_ADDR_LO);
- iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_SMB_ADDR_LO);
+ count = 0;
- /* element count */
- value = adapter->rrd_ring.count;
- value <<= 16;
- value += adapter->rfd_ring.count;
- iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
- iowrite32(adapter->tpd_ring.count, hw->hw_addr +
- REG_DESC_TPD_RING_SIZE);
+ rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean);
- /* Load Ptr */
- iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
+ while (1) {
+ rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean);
+ i = 1;
+ if (likely(rrd->xsz.valid)) { /* packet valid */
+chk_rrd:
+ /* check rrd status */
+ if (likely(rrd->num_buf == 1))
+ goto rrd_ok;
- /* config Mailbox */
- value = ((atomic_read(&adapter->tpd_ring.next_to_use)
- & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
- ((atomic_read(&adapter->rrd_ring.next_to_clean)
- & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
- ((atomic_read(&adapter->rfd_ring.next_to_use)
- & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAILBOX);
+ /* rrd seems to be bad */
+ if (unlikely(i-- > 0)) {
+ /* rrd may not be DMAed completely */
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "incomplete RRD DMA transfer\n");
+ udelay(1);
+ goto chk_rrd;
+ }
+ /* bad rrd */
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "bad RRD\n");
+ /* see if update RFD index */
+ if (rrd->num_buf > 1)
+ atl1_update_rfd_index(adapter, rrd);
- /* config IPG/IFG */
- value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
- << MAC_IPG_IFG_IPGT_SHIFT) |
- (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
- << MAC_IPG_IFG_MIFG_SHIFT) |
- (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
- << MAC_IPG_IFG_IPGR1_SHIFT) |
- (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
- << MAC_IPG_IFG_IPGR2_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
+ /* update rrd */
+ rrd->xsz.valid = 0;
+ if (++rrd_next_to_clean == rrd_ring->count)
+ rrd_next_to_clean = 0;
+ count++;
+ continue;
+ } else { /* current rrd still not be updated */
- /* config Half-Duplex Control */
- value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
- (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
- << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
- MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
- (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
- (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
- << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
+ break;
+ }
+rrd_ok:
+ /* clean alloc flag for bad rrd */
+ atl1_clean_alloc_flag(adapter, rrd, 0);
- /* set Interrupt Moderator Timer */
- iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
- iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
+ buffer_info = &rfd_ring->buffer_info[rrd->buf_indx];
+ if (++rfd_ring->next_to_clean == rfd_ring->count)
+ rfd_ring->next_to_clean = 0;
- /* set Interrupt Clear Timer */
- iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
+ /* update rrd next to clean */
+ if (++rrd_next_to_clean == rrd_ring->count)
+ rrd_next_to_clean = 0;
+ count++;
- /* set MTU, 4 : VLAN */
- iowrite32(hw->max_frame_size + 4, hw->hw_addr + REG_MTU);
+ if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
+ if (!(rrd->err_flg &
+ (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM
+ | ERR_FLAG_LEN))) {
+ /* packet error, don't need upstream */
+ buffer_info->alloced = 0;
+ rrd->xsz.valid = 0;
+ continue;
+ }
+ }
- /* jumbo size & rrd retirement timer */
- value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
- << RXQ_JMBOSZ_TH_SHIFT) |
- (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
- << RXQ_JMBO_LKAH_SHIFT) |
- (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
- << RXQ_RRD_TIMER_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
+ /* Good Receive */
+ pci_unmap_page(adapter->pdev, buffer_info->dma,
+ buffer_info->length, PCI_DMA_FROMDEVICE);
+ skb = buffer_info->skb;
+ length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size);
- /* Flow Control */
- switch (hw->dev_rev) {
- case 0x8001:
- case 0x9001:
- case 0x9002:
- case 0x9003:
- set_flow_ctrl_old(adapter);
- break;
- default:
- set_flow_ctrl_new(hw);
- break;
- }
+ skb_put(skb, length - ETHERNET_FCS_SIZE);
- /* config TXQ */
- value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
- << TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
- (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
- << TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
- (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
- << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE |
- TXQ_CTRL_EN;
- iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
+ /* Receive Checksum Offload */
+ atl1_rx_checksum(adapter, rrd, skb);
+ skb->protocol = eth_type_trans(skb, adapter->netdev);
- /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
- value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
- << TX_JUMBO_TASK_TH_SHIFT) |
- (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
- << TX_TPD_MIN_IPG_SHIFT);
- iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
+ if (adapter->vlgrp && (rrd->pkt_flg & PACKET_FLAG_VLAN_INS)) {
+ u16 vlan_tag = (rrd->vlan_tag >> 4) |
+ ((rrd->vlan_tag & 7) << 13) |
+ ((rrd->vlan_tag & 8) << 9);
+ vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag);
+ } else
+ netif_rx(skb);
- /* config RXQ */
- value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
- << RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
- (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
- << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
- (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
- << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN |
- RXQ_CTRL_EN;
- iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
+ /* let protocol layer free skb */
+ buffer_info->skb = NULL;
+ buffer_info->alloced = 0;
+ rrd->xsz.valid = 0;
- /* config DMA Engine */
- value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
- << DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
- ((((u32) hw->dmaw_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
- << DMA_CTRL_DMAR_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN |
- DMA_CTRL_DMAW_EN;
- value |= (u32) hw->dma_ord;
- if (atl1_rcb_128 == hw->rcb_value)
- value |= DMA_CTRL_RCB_VALUE;
- iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
+ adapter->netdev->last_rx = jiffies;
+ }
- /* config CMB / SMB */
- value = hw->cmb_rrd | ((u32) hw->cmb_tpd << 16);
- iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
- value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
- iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
- iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
+ atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean);
- /* --- enable CMB / SMB */
- value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
- iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
+ atl1_alloc_rx_buffers(adapter);
- value = ioread32(adapter->hw.hw_addr + REG_ISR);
- if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
- value = 1; /* config failed */
- else
- value = 0;
+ /* update mailbox ? */
+ if (count) {
+ u32 tpd_next_to_use;
+ u32 rfd_next_to_use;
+ u32 rrd_next_to_clean;
- /* clear all interrupt status */
- iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
- iowrite32(0, adapter->hw.hw_addr + REG_ISR);
- return value;
-}
+ spin_lock(&adapter->mb_lock);
-/*
- * atl1_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- */
-static void atl1_irq_disable(struct atl1_adapter *adapter)
-{
- iowrite32(0, adapter->hw.hw_addr + REG_IMR);
- ioread32(adapter->hw.hw_addr + REG_IMR);
- synchronize_irq(adapter->pdev->irq);
+ tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
+ rfd_next_to_use =
+ atomic_read(&adapter->rfd_ring.next_to_use);
+ rrd_next_to_clean =
+ atomic_read(&adapter->rrd_ring.next_to_clean);
+ value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
+ MB_RFD_PROD_INDX_SHIFT) |
+ ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
+ MB_RRD_CONS_INDX_SHIFT) |
+ ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
+ MB_TPD_PROD_INDX_SHIFT);
+ iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
+ spin_unlock(&adapter->mb_lock);
+ }
}
-
-static void atl1_vlan_rx_register(struct net_device *netdev,
- struct vlan_group *grp)
+
+static void atl1_intr_tx(struct atl1_adapter *adapter)
{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- unsigned long flags;
- u32 ctrl;
+ struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+ struct atl1_buffer *buffer_info;
+ u16 sw_tpd_next_to_clean;
+ u16 cmb_tpd_next_to_clean;
- spin_lock_irqsave(&adapter->lock, flags);
- /* atl1_irq_disable(adapter); */
- adapter->vlgrp = grp;
+ sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean);
+ cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx);
- if (grp) {
- /* enable VLAN tag insert/strip */
- ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
- ctrl |= MAC_CTRL_RMV_VLAN;
- iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
- } else {
- /* disable VLAN tag insert/strip */
- ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
- ctrl &= ~MAC_CTRL_RMV_VLAN;
- iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
- }
+ while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) {
+ struct tx_packet_desc *tpd;
- /* atl1_irq_enable(adapter); */
- spin_unlock_irqrestore(&adapter->lock, flags);
-}
+ tpd = ATL1_TPD_DESC(tpd_ring, sw_tpd_next_to_clean);
+ buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean];
+ if (buffer_info->dma) {
+ pci_unmap_page(adapter->pdev, buffer_info->dma,
+ buffer_info->length, PCI_DMA_TODEVICE);
+ buffer_info->dma = 0;
+ }
-static void atl1_restore_vlan(struct atl1_adapter *adapter)
-{
- atl1_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+ if (buffer_info->skb) {
+ dev_kfree_skb_irq(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ tpd->buffer_addr = 0;
+ tpd->desc.data = 0;
+
+ if (++sw_tpd_next_to_clean == tpd_ring->count)
+ sw_tpd_next_to_clean = 0;
+ }
+ atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean);
+
+ if (netif_queue_stopped(adapter->netdev)
+ && netif_carrier_ok(adapter->netdev))
+ netif_wake_queue(adapter->netdev);
}
static u16 tpd_avail(struct atl1_tpd_ring *tpd_ring)
atomic_set(&tpd_ring->next_to_use, (int)tpd_next_to_use);
}
-static void atl1_update_mailbox(struct atl1_adapter *adapter)
-{
- unsigned long flags;
- u32 tpd_next_to_use;
- u32 rfd_next_to_use;
- u32 rrd_next_to_clean;
- u32 value;
-
- spin_lock_irqsave(&adapter->mb_lock, flags);
-
- tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
- rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
- rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
-
- value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
- MB_RFD_PROD_INDX_SHIFT) |
- ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
- MB_RRD_CONS_INDX_SHIFT) |
- ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
- MB_TPD_PROD_INDX_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
-
- spin_unlock_irqrestore(&adapter->mb_lock, flags);
-}
-
static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
}
/*
- * atl1_get_stats - Get System Network Statistics
- * @netdev: network interface device structure
- *
- * Returns the address of the device statistics structure.
- * The statistics are actually updated from the timer callback.
+ * atl1_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ * @pt_regs: CPU registers structure
*/
-static struct net_device_stats *atl1_get_stats(struct net_device *netdev)
+static irqreturn_t atl1_intr(int irq, void *data)
{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- return &adapter->net_stats;
-}
+ struct atl1_adapter *adapter = netdev_priv(data);
+ u32 status;
+ u8 update_rx;
+ int max_ints = 10;
-/*
- * atl1_clean_rx_ring - Free RFD Buffers
- * @adapter: board private structure
- */
-static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
-{
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long size;
- unsigned int i;
+ status = adapter->cmb.cmb->int_stats;
+ if (!status)
+ return IRQ_NONE;
- /* Free all the Rx ring sk_buffs */
- for (i = 0; i < rfd_ring->count; i++) {
- buffer_info = &rfd_ring->buffer_info[i];
- if (buffer_info->dma) {
- pci_unmap_page(pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_FROMDEVICE);
- buffer_info->dma = 0;
+ update_rx = 0;
+
+ do {
+ /* clear CMB interrupt status at once */
+ adapter->cmb.cmb->int_stats = 0;
+
+ if (status & ISR_GPHY) /* clear phy status */
+ atl1_clear_phy_int(adapter);
+
+ /* clear ISR status, and Enable CMB DMA/Disable Interrupt */
+ iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
+
+ /* check if SMB intr */
+ if (status & ISR_SMB)
+ atl1_inc_smb(adapter);
+
+ /* check if PCIE PHY Link down */
+ if (status & ISR_PHY_LINKDOWN) {
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "pcie phy link down %x\n", status);
+ if (netif_running(adapter->netdev)) { /* reset MAC */
+ iowrite32(0, adapter->hw.hw_addr + REG_IMR);
+ schedule_work(&adapter->pcie_dma_to_rst_task);
+ return IRQ_HANDLED;
+ }
}
- if (buffer_info->skb) {
- dev_kfree_skb(buffer_info->skb);
- buffer_info->skb = NULL;
+
+ /* check if DMA read/write error ? */
+ if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "pcie DMA r/w error (status = 0x%x)\n",
+ status);
+ iowrite32(0, adapter->hw.hw_addr + REG_IMR);
+ schedule_work(&adapter->pcie_dma_to_rst_task);
+ return IRQ_HANDLED;
}
- }
- size = sizeof(struct atl1_buffer) * rfd_ring->count;
- memset(rfd_ring->buffer_info, 0, size);
+ /* link event */
+ if (status & ISR_GPHY) {
+ adapter->soft_stats.tx_carrier_errors++;
+ atl1_check_for_link(adapter);
+ }
- /* Zero out the descriptor ring */
- memset(rfd_ring->desc, 0, rfd_ring->size);
+ /* transmit event */
+ if (status & ISR_CMB_TX)
+ atl1_intr_tx(adapter);
- rfd_ring->next_to_clean = 0;
- atomic_set(&rfd_ring->next_to_use, 0);
+ /* rx exception */
+ if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
+ ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
+ ISR_HOST_RRD_OV | ISR_CMB_RX))) {
+ if (status & (ISR_RXF_OV | ISR_RFD_UNRUN |
+ ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
+ ISR_HOST_RRD_OV))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "rx exception, ISR = 0x%x\n", status);
+ atl1_intr_rx(adapter);
+ }
- rrd_ring->next_to_use = 0;
- atomic_set(&rrd_ring->next_to_clean, 0);
+ if (--max_ints < 0)
+ break;
+
+ } while ((status = adapter->cmb.cmb->int_stats));
+
+ /* re-enable Interrupt */
+ iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);
+ return IRQ_HANDLED;
}
/*
- * atl1_clean_tx_ring - Free Tx Buffers
- * @adapter: board private structure
+ * atl1_watchdog - Timer Call-back
+ * @data: pointer to netdev cast into an unsigned long
*/
-static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
+static void atl1_watchdog(unsigned long data)
{
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long size;
- unsigned int i;
+ struct atl1_adapter *adapter = (struct atl1_adapter *)data;
- /* Free all the Tx ring sk_buffs */
- for (i = 0; i < tpd_ring->count; i++) {
- buffer_info = &tpd_ring->buffer_info[i];
- if (buffer_info->dma) {
- pci_unmap_page(pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
- }
- }
+ /* Reset the timer */
+ mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
+}
- for (i = 0; i < tpd_ring->count; i++) {
- buffer_info = &tpd_ring->buffer_info[i];
- if (buffer_info->skb) {
- dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- }
+/*
+ * atl1_phy_config - Timer Call-back
+ * @data: pointer to netdev cast into an unsigned long
+ */
+static void atl1_phy_config(unsigned long data)
+{
+ struct atl1_adapter *adapter = (struct atl1_adapter *)data;
+ struct atl1_hw *hw = &adapter->hw;
+ unsigned long flags;
- size = sizeof(struct atl1_buffer) * tpd_ring->count;
- memset(tpd_ring->buffer_info, 0, size);
+ spin_lock_irqsave(&adapter->lock, flags);
+ adapter->phy_timer_pending = false;
+ atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
+ atl1_write_phy_reg(hw, MII_AT001_CR, hw->mii_1000t_ctrl_reg);
+ atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN);
+ spin_unlock_irqrestore(&adapter->lock, flags);
+}
- /* Zero out the descriptor ring */
- memset(tpd_ring->desc, 0, tpd_ring->size);
+/*
+ * atl1_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ */
+static void atl1_tx_timeout(struct net_device *netdev)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ /* Do the reset outside of interrupt context */
+ schedule_work(&adapter->tx_timeout_task);
+}
+
+/*
+ * Orphaned vendor comment left intact here:
+ * <vendor comment>
+ * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
+ * will assert. We do soft reset <0x1400=1> according
+ * with the SPEC. BUT, it seemes that PCIE or DMA
+ * state-machine will not be reset. DMAR_TO_INT will
+ * assert again and again.
+ * </vendor comment>
+ */
+static void atl1_tx_timeout_task(struct work_struct *work)
+{
+ struct atl1_adapter *adapter =
+ container_of(work, struct atl1_adapter, tx_timeout_task);
+ struct net_device *netdev = adapter->netdev;
- atomic_set(&tpd_ring->next_to_use, 0);
- atomic_set(&tpd_ring->next_to_clean, 0);
+ netif_device_detach(netdev);
+ atl1_down(adapter);
+ atl1_up(adapter);
+ netif_device_attach(netdev);
}
/*
- * atl1_free_ring_resources - Free Tx / RX descriptor Resources
- * @adapter: board private structure
- *
- * Free all transmit software resources
+ * atl1_link_chg_task - deal with link change event Out of interrupt context
*/
-void atl1_free_ring_resources(struct atl1_adapter *adapter)
+static void atl1_link_chg_task(struct work_struct *work)
{
- struct pci_dev *pdev = adapter->pdev;
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_ring_header *ring_header = &adapter->ring_header;
+ struct atl1_adapter *adapter =
+ container_of(work, struct atl1_adapter, link_chg_task);
+ unsigned long flags;
- atl1_clean_tx_ring(adapter);
- atl1_clean_rx_ring(adapter);
+ spin_lock_irqsave(&adapter->lock, flags);
+ atl1_check_link(adapter);
+ spin_unlock_irqrestore(&adapter->lock, flags);
+}
- kfree(tpd_ring->buffer_info);
- pci_free_consistent(pdev, ring_header->size, ring_header->desc,
- ring_header->dma);
+static void atl1_vlan_rx_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ unsigned long flags;
+ u32 ctrl;
- tpd_ring->buffer_info = NULL;
- tpd_ring->desc = NULL;
- tpd_ring->dma = 0;
+ spin_lock_irqsave(&adapter->lock, flags);
+ /* atl1_irq_disable(adapter); */
+ adapter->vlgrp = grp;
- rfd_ring->buffer_info = NULL;
- rfd_ring->desc = NULL;
- rfd_ring->dma = 0;
+ if (grp) {
+ /* enable VLAN tag insert/strip */
+ ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
+ ctrl |= MAC_CTRL_RMV_VLAN;
+ iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
+ } else {
+ /* disable VLAN tag insert/strip */
+ ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
+ ctrl &= ~MAC_CTRL_RMV_VLAN;
+ iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
+ }
- rrd_ring->desc = NULL;
- rrd_ring->dma = 0;
+ /* atl1_irq_enable(adapter); */
+ spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+static void atl1_restore_vlan(struct atl1_adapter *adapter)
+{
+ atl1_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+}
+
+int atl1_reset(struct atl1_adapter *adapter)
+{
+ int ret;
+
+ ret = atl1_reset_hw(&adapter->hw);
+ if (ret != ATL1_SUCCESS)
+ return ret;
+ return atl1_init_hw(&adapter->hw);
}
s32 atl1_up(struct atl1_adapter *adapter)
atl1_clean_rx_ring(adapter);
}
-/*
- * atl1_change_mtu - Change the Maximum Transfer Unit
- * @netdev: network interface device structure
- * @new_mtu: new value for maximum frame size
- *
- * Returns 0 on success, negative on failure
- */
-static int atl1_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- int old_mtu = netdev->mtu;
- int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
-
- if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
- (max_frame > MAX_JUMBO_FRAME_SIZE)) {
- dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
- return -EINVAL;
- }
-
- adapter->hw.max_frame_size = max_frame;
- adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3;
- adapter->rx_buffer_len = (max_frame + 7) & ~7;
- adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8;
-
- netdev->mtu = new_mtu;
- if ((old_mtu != new_mtu) && netif_running(netdev)) {
- atl1_down(adapter);
- atl1_up(adapter);
- }
-
- return 0;
-}
-
-/*
- * atl1_set_mac - Change the Ethernet Address of the NIC
- * @netdev: network interface device structure
- * @p: pointer to an address structure
- *
- * Returns 0 on success, negative on failure
- */
-static int atl1_set_mac(struct net_device *netdev, void *p)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- struct sockaddr *addr = p;
-
- if (netif_running(netdev))
- return -EBUSY;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
-
- atl1_set_mac_addr(&adapter->hw);
- return 0;
-}
-
-/*
- * atl1_watchdog - Timer Call-back
- * @data: pointer to netdev cast into an unsigned long
- */
-static void atl1_watchdog(unsigned long data)
-{
- struct atl1_adapter *adapter = (struct atl1_adapter *)data;
-
- /* Reset the timer */
- mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
-}
-
-static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- u16 result;
-
- atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
-
- return result;
-}
-
-static void mdio_write(struct net_device *netdev, int phy_id, int reg_num,
- int val)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
-
- atl1_write_phy_reg(&adapter->hw, reg_num, val);
-}
-
-/*
- * atl1_mii_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- */
-static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- unsigned long flags;
- int retval;
-
- if (!netif_running(netdev))
- return -EINVAL;
-
- spin_lock_irqsave(&adapter->lock, flags);
- retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
- spin_unlock_irqrestore(&adapter->lock, flags);
-
- return retval;
-}
-
-/*
- * atl1_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- */
-static int atl1_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- switch (cmd) {
- case SIOCGMIIPHY:
- case SIOCGMIIREG:
- case SIOCSMIIREG:
- return atl1_mii_ioctl(netdev, ifr, cmd);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-/*
- * atl1_tx_timeout - Respond to a Tx Hang
- * @netdev: network interface device structure
- */
-static void atl1_tx_timeout(struct net_device *netdev)
-{
- struct atl1_adapter *adapter = netdev_priv(netdev);
- /* Do the reset outside of interrupt context */
- schedule_work(&adapter->tx_timeout_task);
-}
-
-/*
- * atl1_phy_config - Timer Call-back
- * @data: pointer to netdev cast into an unsigned long
- */
-static void atl1_phy_config(unsigned long data)
-{
- struct atl1_adapter *adapter = (struct atl1_adapter *)data;
- struct atl1_hw *hw = &adapter->hw;
- unsigned long flags;
-
- spin_lock_irqsave(&adapter->lock, flags);
- adapter->phy_timer_pending = false;
- atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
- atl1_write_phy_reg(hw, MII_AT001_CR, hw->mii_1000t_ctrl_reg);
- atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN);
- spin_unlock_irqrestore(&adapter->lock, flags);
-}
-
-int atl1_reset(struct atl1_adapter *adapter)
-{
- int ret;
-
- ret = atl1_reset_hw(&adapter->hw);
- if (ret != ATL1_SUCCESS)
- return ret;
- return atl1_init_hw(&adapter->hw);
-}
-
/*
* atl1_open - Called when a network interface is made active
* @netdev: network interface device structure
return 0;
}
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void atl1_poll_controller(struct net_device *netdev)
-{
- disable_irq(netdev->irq);
- atl1_intr(netdev->irq, netdev);
- enable_irq(netdev->irq);
-}
-#endif
-
-/*
- * Orphaned vendor comment left intact here:
- * <vendor comment>
- * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
- * will assert. We do soft reset <0x1400=1> according
- * with the SPEC. BUT, it seemes that PCIE or DMA
- * state-machine will not be reset. DMAR_TO_INT will
- * assert again and again.
- * </vendor comment>
- */
-static void atl1_tx_timeout_task(struct work_struct *work)
+#ifdef CONFIG_PM
+static int atl1_suspend(struct pci_dev *pdev, pm_message_t state)
{
- struct atl1_adapter *adapter =
- container_of(work, struct atl1_adapter, tx_timeout_task);
- struct net_device *netdev = adapter->netdev;
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ struct atl1_hw *hw = &adapter->hw;
+ u32 ctrl = 0;
+ u32 wufc = adapter->wol;
netif_device_detach(netdev);
- atl1_down(adapter);
- atl1_up(adapter);
- netif_device_attach(netdev);
-}
+ if (netif_running(netdev))
+ atl1_down(adapter);
-/*
- * atl1_link_chg_task - deal with link change event Out of interrupt context
- */
-static void atl1_link_chg_task(struct work_struct *work)
-{
- struct atl1_adapter *adapter =
- container_of(work, struct atl1_adapter, link_chg_task);
- unsigned long flags;
+ atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
+ atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
+ if (ctrl & BMSR_LSTATUS)
+ wufc &= ~ATL1_WUFC_LNKC;
- spin_lock_irqsave(&adapter->lock, flags);
- atl1_check_link(adapter);
- spin_unlock_irqrestore(&adapter->lock, flags);
+ /* reduce speed to 10/100M */
+ if (wufc) {
+ atl1_phy_enter_power_saving(hw);
+ /* if resume, let driver to re- setup link */
+ hw->phy_configured = false;
+ atl1_set_mac_addr(hw);
+ atl1_set_multi(netdev);
+
+ ctrl = 0;
+ /* turn on magic packet wol */
+ if (wufc & ATL1_WUFC_MAG)
+ ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
+
+ /* turn on Link change WOL */
+ if (wufc & ATL1_WUFC_LNKC)
+ ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
+ iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
+
+ /* turn on all-multi mode if wake on multicast is enabled */
+ ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL);
+ ctrl &= ~MAC_CTRL_DBG;
+ ctrl &= ~MAC_CTRL_PROMIS_EN;
+ if (wufc & ATL1_WUFC_MC)
+ ctrl |= MAC_CTRL_MC_ALL_EN;
+ else
+ ctrl &= ~MAC_CTRL_MC_ALL_EN;
+
+ /* turn on broadcast mode if wake on-BC is enabled */
+ if (wufc & ATL1_WUFC_BC)
+ ctrl |= MAC_CTRL_BC_EN;
+ else
+ ctrl &= ~MAC_CTRL_BC_EN;
+
+ /* enable RX */
+ ctrl |= MAC_CTRL_RX_EN;
+ iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
+ pci_enable_wake(pdev, PCI_D3hot, 1);
+ pci_enable_wake(pdev, PCI_D3cold, 1);
+ } else {
+ iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+ }
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
}
-/*
- * atl1_pcie_patch - Patch for PCIE module
- */
-static void atl1_pcie_patch(struct atl1_adapter *adapter)
+static int atl1_resume(struct pci_dev *pdev)
{
- u32 value;
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ u32 ret_val;
- /* much vendor magic here */
- value = 0x6500;
- iowrite32(value, adapter->hw.hw_addr + 0x12FC);
- /* pcie flow control mode change */
- value = ioread32(adapter->hw.hw_addr + 0x1008);
- value |= 0x8000;
- iowrite32(value, adapter->hw.hw_addr + 0x1008);
+ pci_set_power_state(pdev, 0);
+ pci_restore_state(pdev);
+
+ ret_val = pci_enable_device(pdev);
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
+ iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
+ atl1_reset(adapter);
+
+ if (netif_running(netdev))
+ atl1_up(adapter);
+ netif_device_attach(netdev);
+
+ atl1_via_workaround(adapter);
+
+ return 0;
}
+#else
+#define atl1_suspend NULL
+#define atl1_resume NULL
+#endif
-/*
- * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
- * on PCI Command register is disable.
- * The function enable this bit.
- * Brackett, 2006/03/15
- */
-static void atl1_via_workaround(struct atl1_adapter *adapter)
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void atl1_poll_controller(struct net_device *netdev)
{
- unsigned long value;
-
- value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
- if (value & PCI_COMMAND_INTX_DISABLE)
- value &= ~PCI_COMMAND_INTX_DISABLE;
- iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
+ disable_irq(netdev->irq);
+ atl1_intr(netdev->irq, netdev);
+ enable_irq(netdev->irq);
}
+#endif
/*
* atl1_probe - Device Initialization Routine
pci_disable_device(pdev);
}
-#ifdef CONFIG_PM
-static int atl1_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct atl1_adapter *adapter = netdev_priv(netdev);
- struct atl1_hw *hw = &adapter->hw;
- u32 ctrl = 0;
- u32 wufc = adapter->wol;
-
- netif_device_detach(netdev);
- if (netif_running(netdev))
- atl1_down(adapter);
-
- atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
- atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
- if (ctrl & BMSR_LSTATUS)
- wufc &= ~ATL1_WUFC_LNKC;
-
- /* reduce speed to 10/100M */
- if (wufc) {
- atl1_phy_enter_power_saving(hw);
- /* if resume, let driver to re- setup link */
- hw->phy_configured = false;
- atl1_set_mac_addr(hw);
- atl1_set_multi(netdev);
-
- ctrl = 0;
- /* turn on magic packet wol */
- if (wufc & ATL1_WUFC_MAG)
- ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
-
- /* turn on Link change WOL */
- if (wufc & ATL1_WUFC_LNKC)
- ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
- iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
-
- /* turn on all-multi mode if wake on multicast is enabled */
- ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL);
- ctrl &= ~MAC_CTRL_DBG;
- ctrl &= ~MAC_CTRL_PROMIS_EN;
- if (wufc & ATL1_WUFC_MC)
- ctrl |= MAC_CTRL_MC_ALL_EN;
- else
- ctrl &= ~MAC_CTRL_MC_ALL_EN;
-
- /* turn on broadcast mode if wake on-BC is enabled */
- if (wufc & ATL1_WUFC_BC)
- ctrl |= MAC_CTRL_BC_EN;
- else
- ctrl &= ~MAC_CTRL_BC_EN;
-
- /* enable RX */
- ctrl |= MAC_CTRL_RX_EN;
- iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- } else {
- iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
- }
-
- pci_save_state(pdev);
- pci_disable_device(pdev);
-
- pci_set_power_state(pdev, PCI_D3hot);
-
- return 0;
-}
-
-static int atl1_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct atl1_adapter *adapter = netdev_priv(netdev);
- u32 ret_val;
-
- pci_set_power_state(pdev, 0);
- pci_restore_state(pdev);
-
- ret_val = pci_enable_device(pdev);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
-
- iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
- atl1_reset(adapter);
-
- if (netif_running(netdev))
- atl1_up(adapter);
- netif_device_attach(netdev);
-
- atl1_via_workaround(adapter);
-
- return 0;
-}
-#else
-#define atl1_suspend NULL
-#define atl1_resume NULL
-#endif
-
static struct pci_driver atl1_driver = {
.name = atl1_driver_name,
.id_table = atl1_pci_tbl,
projects / openwrt / staging / blogic.git / commitdiff