From b040b07bb0009dd036326f074cbb5501cf245460 Mon Sep 17 00:00:00 2001 From: Mithlesh Thukral Date: Wed, 28 Jan 2009 07:08:11 +0530 Subject: [PATCH] Staging: sxg: Add multicast support for Sahara SXG driver * Add multicast support for SXG driver for Alacritech's 10Gbe products. Signed-off-by: LinSysSoft Sahara Team Signed-off-by: Mithlesh Thukral Cc: Michael Miles Cc: Christopher Harrer Signed-off-by: Greg Kroah-Hartman --- drivers/staging/sxg/sxg.c | 127 ++++++++++++------------------ drivers/staging/sxg/sxg_ethtool.c | 4 +- 2 files changed, 52 insertions(+), 79 deletions(-) diff --git a/drivers/staging/sxg/sxg.c b/drivers/staging/sxg/sxg.c index 06966eed7582..312931d4f61a 100644 --- a/drivers/staging/sxg/sxg.c +++ b/drivers/staging/sxg/sxg.c @@ -119,10 +119,8 @@ static void sxg_complete_slow_send(struct adapter_t *adapter, int irq_context); static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, struct sxg_event *Event); static void sxg_process_rcv_error(struct adapter_t *adapter, u32 ErrorStatus); -/* See if we need sxg_mac_filter() in future. If not remove it static bool sxg_mac_filter(struct adapter_t *adapter, struct ether_header *EtherHdr, ushort length); -*/ static struct net_device_stats *sxg_get_stats(struct net_device * dev); void sxg_free_resources(struct adapter_t *adapter); void sxg_free_rcvblocks(struct adapter_t *adapter); @@ -155,6 +153,7 @@ static int sxg_write_mdio_reg(struct adapter_t *adapter, u32 DevAddr, u32 RegAddr, u32 Value); static int sxg_read_mdio_reg(struct adapter_t *adapter, u32 DevAddr, u32 RegAddr, u32 *pValue); +static void sxg_set_mcast_addr(struct adapter_t *adapter); static unsigned int sxg_first_init = 1; static char *sxg_banner = @@ -1609,16 +1608,14 @@ static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, #endif /* Dumb-nic frame. See if it passes our mac filter and update stats */ - /* - * ASK if (!sxg_mac_filter(adapter, - * SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), - * Event->Length)) { - * SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvFiltr", - * Event, SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), - * Event->Length, 0); - * goto drop; - * } - */ + if (!sxg_mac_filter(adapter, + (struct ether_header *)(SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr)), + Event->Length)) { + SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvFiltr", + Event, SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), + Event->Length, 0); + goto drop; + } Packet = RcvDataBufferHdr->SxgDumbRcvPacket; SXG_ADJUST_RCV_PACKET(Packet, RcvDataBufferHdr, Event); @@ -1728,7 +1725,6 @@ static void sxg_process_rcv_error(struct adapter_t *adapter, u32 ErrorStatus) } } -#if 0 /* Find out if this code will be needed in future */ /* * sxg_mac_filter * @@ -1743,6 +1739,7 @@ static bool sxg_mac_filter(struct adapter_t *adapter, struct ether_header *EtherHdr, ushort length) { bool EqualAddr; + struct net_device *dev = adapter->netdev; if (SXG_MULTICAST_PACKET(EtherHdr)) { if (SXG_BROADCAST_PACKET(EtherHdr)) { @@ -1750,8 +1747,6 @@ static bool sxg_mac_filter(struct adapter_t *adapter, if (adapter->MacFilter & MAC_BCAST) { adapter->Stats.DumbRcvBcastPkts++; adapter->Stats.DumbRcvBcastBytes += length; - adapter->Stats.DumbRcvPkts++; - adapter->Stats.DumbRcvBytes += length; return (TRUE); } } else { @@ -1759,15 +1754,12 @@ static bool sxg_mac_filter(struct adapter_t *adapter, if (adapter->MacFilter & MAC_ALLMCAST) { adapter->Stats.DumbRcvMcastPkts++; adapter->Stats.DumbRcvMcastBytes += length; - adapter->Stats.DumbRcvPkts++; - adapter->Stats.DumbRcvBytes += length; return (TRUE); } if (adapter->MacFilter & MAC_MCAST) { - struct sxg_multicast_address *MulticastAddrs = - adapter->MulticastAddrs; - while (MulticastAddrs) { - ETHER_EQ_ADDR(MulticastAddrs->Address, + struct dev_mc_list *mclist = dev->mc_list; + while (mclist) { + ETHER_EQ_ADDR(mclist->da_addr, EtherHdr->ether_dhost, EqualAddr); if (EqualAddr) { @@ -1775,12 +1767,9 @@ static bool sxg_mac_filter(struct adapter_t *adapter, DumbRcvMcastPkts++; adapter->Stats. DumbRcvMcastBytes += length; - adapter->Stats.DumbRcvPkts++; - adapter->Stats.DumbRcvBytes += - length; return (TRUE); } - MulticastAddrs = MulticastAddrs->Next; + mclist = mclist->next; } } } @@ -1792,20 +1781,15 @@ static bool sxg_mac_filter(struct adapter_t *adapter, */ adapter->Stats.DumbRcvUcastPkts++; adapter->Stats.DumbRcvUcastBytes += length; - adapter->Stats.DumbRcvPkts++; - adapter->Stats.DumbRcvBytes += length; return (TRUE); } if (adapter->MacFilter & MAC_PROMISC) { /* Whatever it is, keep it. */ - adapter->Stats.DumbRcvPkts++; - adapter->Stats.DumbRcvBytes += length; return (TRUE); } - adapter->Stats.RcvDiscards++; return (FALSE); } -#endif + static int sxg_register_interrupt(struct adapter_t *adapter) { if (!adapter->intrregistered) { @@ -1885,24 +1869,24 @@ static int sxg_if_init(struct adapter_t *adapter) ASSERT(adapter->linkstate == LINK_DOWN); adapter->devflags_prev = dev->flags; - adapter->macopts = MAC_DIRECTED; + adapter->MacFilter = MAC_DIRECTED; if (dev->flags) { DBG_ERROR("sxg: %s (%s) Set MAC options: ", __func__, adapter->netdev->name); if (dev->flags & IFF_BROADCAST) { - adapter->macopts |= MAC_BCAST; + adapter->MacFilter |= MAC_BCAST; DBG_ERROR("BCAST "); } if (dev->flags & IFF_PROMISC) { - adapter->macopts |= MAC_PROMISC; + adapter->MacFilter |= MAC_PROMISC; DBG_ERROR("PROMISC "); } if (dev->flags & IFF_ALLMULTI) { - adapter->macopts |= MAC_ALLMCAST; + adapter->MacFilter |= MAC_ALLMCAST; DBG_ERROR("ALL_MCAST "); } if (dev->flags & IFF_MULTICAST) { - adapter->macopts |= MAC_MCAST; + adapter->MacFilter |= MAC_MCAST; DBG_ERROR("MCAST "); } DBG_ERROR("\n"); @@ -3036,9 +3020,7 @@ static int sxg_read_mdio_reg(struct adapter_t *adapter, * complemented), we must then transpose the value and return bits 30-23. */ static u32 sxg_crc_table[256];/* Table of CRC's for all possible byte values */ -#if XXXTODO static u32 sxg_crc_init; /* Is table initialized */ -#endif /* Contruct the CRC32 table */ static void sxg_mcast_init_crc32(void) @@ -3063,7 +3045,6 @@ static void sxg_mcast_init_crc32(void) } } -#if XXXTODO /* * Return the MAC hast as described above. */ @@ -3091,13 +3072,12 @@ static unsigned char sxg_mcast_get_mac_hash(char *macaddr) return (machash); } -#endif static void sxg_mcast_set_mask(struct adapter_t *adapter) { struct sxg_ucode_regs *sxg_regs = adapter->UcodeRegs; - DBG_ERROR("%s ENTER (%s) macopts[%x] mask[%llx]\n", __func__, + DBG_ERROR("%s ENTER (%s) MacFilter[%x] mask[%llx]\n", __FUNCTION__, adapter->netdev->name, (unsigned int)adapter->MacFilter, adapter->MulticastMask); @@ -3107,7 +3087,7 @@ static void sxg_mcast_set_mask(struct adapter_t *adapter) * promiscuous mode as well as ALLMCAST mode. It saves the * Microcode from having keep state about the MAC configuration */ - /* DBG_ERROR("sxg: %s macopts = MAC_ALLMCAST | MAC_PROMISC\n + /* DBG_ERROR("sxg: %s MacFilter = MAC_ALLMCAST | MAC_PROMISC\n \ * SLUT MODE!!!\n",__func__); */ WRITE_REG(sxg_regs->McastLow, 0xFFFFFFFF, FLUSH); @@ -3135,39 +3115,6 @@ static void sxg_mcast_set_mask(struct adapter_t *adapter) } } -#if XXXTODO -/* - * Allocate a mcast_address structure to hold the multicast address. - * Link it in. - */ -static int sxg_mcast_add_list(struct adapter_t *adapter, char *address) -{ - struct mcast_address *mcaddr, *mlist; - bool equaladdr; - - /* Check to see if it already exists */ - mlist = adapter->mcastaddrs; - while (mlist) { - ETHER_EQ_ADDR(mlist->address, address, equaladdr); - if (equaladdr) { - return (STATUS_SUCCESS); - } - mlist = mlist->next; - } - - /* Doesn't already exist. Allocate a structure to hold it */ - mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC); - if (mcaddr == NULL) - return 1; - - memcpy(mcaddr->address, address, 6); - - mcaddr->next = adapter->mcastaddrs; - adapter->mcastaddrs = mcaddr; - - return (STATUS_SUCCESS); -} - static void sxg_mcast_set_bit(struct adapter_t *adapter, char *address) { unsigned char crcpoly; @@ -3184,7 +3131,25 @@ static void sxg_mcast_set_bit(struct adapter_t *adapter, char *address) /* OR in the new bit into our 64 bit mask. */ adapter->MulticastMask |= (u64) 1 << crcpoly; } -#endif + +/* + * Function takes MAC addresses from dev_mc_list and generates the Mask + */ + +static void sxg_set_mcast_addr(struct adapter_t *adapter) +{ + struct dev_mc_list *mclist; + struct net_device *dev = adapter->netdev; + int i; + + if (adapter->MacFilter & (MAC_ALLMCAST | MAC_MCAST)) { + for (i = 0, mclist = dev->mc_list; i < dev->mc_count; + i++, mclist = mclist->next) { + sxg_mcast_set_bit(adapter,mclist->da_addr); + } + } + sxg_mcast_set_mask(adapter); +} static void sxg_mcast_set_list(struct net_device *dev) { @@ -3194,8 +3159,16 @@ static void sxg_mcast_set_list(struct net_device *dev) if (dev->flags & IFF_PROMISC) { adapter->MacFilter |= MAC_PROMISC; } + + if (dev->flags & IFF_MULTICAST) + adapter->MacFilter |= MAC_MCAST; + + if (dev->flags & IFF_ALLMULTI) { + adapter->MacFilter |= MAC_ALLMCAST; + } + //XXX handle other flags as well - sxg_mcast_set_mask(adapter); + sxg_set_mcast_addr(adapter); } #if XXXTODO diff --git a/drivers/staging/sxg/sxg_ethtool.c b/drivers/staging/sxg/sxg_ethtool.c index f2771c62587f..63d12580e695 100644 --- a/drivers/staging/sxg/sxg_ethtool.c +++ b/drivers/staging/sxg/sxg_ethtool.c @@ -99,9 +99,9 @@ static struct sxg_nic_stats sxg_nic_gstrings_stats[] = { /* May be need in future */ /* {"dumb_rcv_broadcast_packets", SXG_NIC_STATS(Stats.DumbRcvBcastPkts)}, {"dumb_rcv_broadcast_bytes", SXG_NIC_STATS(Stats.DumbRcvBcastBytes)}, - {"dumb_rcv_multicast_packets", SXG_NIC_STATS(Stats.DumbRcvMcastPkts)}, +*/ {"dumb_rcv_multicast_packets", SXG_NIC_STATS(Stats.DumbRcvMcastPkts)}, {"dumb_rcv_multicast_bytes", SXG_NIC_STATS(Stats.DumbRcvMcastBytes)}, - {"dumb_rcv_unicast_packets", SXG_NIC_STATS(Stats.DumbRcvUcastPkts)}, +/* {"dumb_rcv_unicast_packets", SXG_NIC_STATS(Stats.DumbRcvUcastPkts)}, {"dumb_rcv_unicast_bytes", SXG_NIC_STATS(Stats.DumbRcvUcastBytes)}, */ {"no_sgl_buffer", SXG_NIC_STATS(Stats.NoSglBuf)}, -- 2.30.2