X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Ftg3.c;h=573054ae7b58687dbe52eee0be849f0436159e1c;hb=10fc51b9953112ade61e33ff2f6f005f005a2361;hp=3e893231fef32c2266ae7ec4c9b9982cbd9aef97;hpb=a977dbe8445b8a81d6127c4aa9112a2c29a1a008;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 3e89323..573054a 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -67,8 +67,8 @@ #include "tg3.h" #define DRV_MODULE_NAME "tg3" -#define DRV_MODULE_VERSION "3.109" -#define DRV_MODULE_RELDATE "April 2, 2010" +#define DRV_MODULE_VERSION "3.110" +#define DRV_MODULE_RELDATE "April 9, 2010" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 @@ -126,6 +126,9 @@ TG3_TX_RING_SIZE) #define NEXT_TX(N) (((N) + 1) & (TG3_TX_RING_SIZE - 1)) +#define TG3_RX_DMA_ALIGN 16 +#define TG3_RX_HEADROOM ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN) + #define TG3_DMA_BYTE_ENAB 64 #define TG3_RX_STD_DMA_SZ 1536 @@ -144,6 +147,24 @@ #define TG3_RSS_MIN_NUM_MSIX_VECS 2 +/* Due to a hardware bug, the 5701 can only DMA to memory addresses + * that are at least dword aligned when used in PCIX mode. The driver + * works around this bug by double copying the packet. This workaround + * is built into the normal double copy length check for efficiency. + * + * However, the double copy is only necessary on those architectures + * where unaligned memory accesses are inefficient. For those architectures + * where unaligned memory accesses incur little penalty, we can reintegrate + * the 5701 in the normal rx path. Doing so saves a device structure + * dereference by hardcoding the double copy threshold in place. + */ +#define TG3_RX_COPY_THRESHOLD 256 +#if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) + #define TG3_RX_COPY_THRESH(tp) TG3_RX_COPY_THRESHOLD +#else + #define TG3_RX_COPY_THRESH(tp) ((tp)->rx_copy_thresh) +#endif + /* minimum number of free TX descriptors required to wake up TX process */ #define TG3_TX_WAKEUP_THRESH(tnapi) ((tnapi)->tx_pending / 4) @@ -362,7 +383,7 @@ static void tg3_write32(struct tg3 *tp, u32 off, u32 val) static u32 tg3_read32(struct tg3 *tp, u32 off) { - return (readl(tp->regs + off)); + return readl(tp->regs + off); } static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val) @@ -372,7 +393,7 @@ static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val) static u32 tg3_ape_read32(struct tg3 *tp, u32 off) { - return (readl(tp->aperegs + off)); + return readl(tp->aperegs + off); } static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val) @@ -490,7 +511,7 @@ static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val) static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off) { - return (readl(tp->regs + off + GRCMBOX_BASE)); + return readl(tp->regs + off + GRCMBOX_BASE); } static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val) @@ -4379,7 +4400,7 @@ static void tg3_tx(struct tg3_napi *tnapi) } pci_unmap_single(tp->pdev, - pci_unmap_addr(ri, mapping), + dma_unmap_addr(ri, mapping), skb_headlen(skb), PCI_DMA_TODEVICE); @@ -4393,7 +4414,7 @@ static void tg3_tx(struct tg3_napi *tnapi) tx_bug = 1; pci_unmap_page(tp->pdev, - pci_unmap_addr(ri, mapping), + dma_unmap_addr(ri, mapping), skb_shinfo(skb)->frags[i].size, PCI_DMA_TODEVICE); sw_idx = NEXT_TX(sw_idx); @@ -4431,7 +4452,7 @@ static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz) if (!ri->skb) return; - pci_unmap_single(tp->pdev, pci_unmap_addr(ri, mapping), + pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping), map_sz, PCI_DMA_FROMDEVICE); dev_kfree_skb_any(ri->skb); ri->skb = NULL; @@ -4497,7 +4518,7 @@ static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr, } map->skb = skb; - pci_unmap_addr_set(map, mapping, mapping); + dma_unmap_addr_set(map, mapping, mapping); desc->addr_hi = ((u64)mapping >> 32); desc->addr_lo = ((u64)mapping & 0xffffffff); @@ -4542,8 +4563,8 @@ static void tg3_recycle_rx(struct tg3_napi *tnapi, } dest_map->skb = src_map->skb; - pci_unmap_addr_set(dest_map, mapping, - pci_unmap_addr(src_map, mapping)); + dma_unmap_addr_set(dest_map, mapping, + dma_unmap_addr(src_map, mapping)); dest_desc->addr_hi = src_desc->addr_hi; dest_desc->addr_lo = src_desc->addr_lo; @@ -4606,18 +4627,20 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) struct sk_buff *skb; dma_addr_t dma_addr; u32 opaque_key, desc_idx, *post_ptr; + bool hw_vlan __maybe_unused = false; + u16 vtag __maybe_unused = 0; desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK; opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK; if (opaque_key == RXD_OPAQUE_RING_STD) { ri = &tp->prodring[0].rx_std_buffers[desc_idx]; - dma_addr = pci_unmap_addr(ri, mapping); + dma_addr = dma_unmap_addr(ri, mapping); skb = ri->skb; post_ptr = &std_prod_idx; rx_std_posted++; } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) { ri = &tp->prodring[0].rx_jmb_buffers[desc_idx]; - dma_addr = pci_unmap_addr(ri, mapping); + dma_addr = dma_unmap_addr(ri, mapping); skb = ri->skb; post_ptr = &jmb_prod_idx; } else @@ -4639,12 +4662,7 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - ETH_FCS_LEN; - if (len > RX_COPY_THRESHOLD && - tp->rx_offset == NET_IP_ALIGN) { - /* rx_offset will likely not equal NET_IP_ALIGN - * if this is a 5701 card running in PCI-X mode - * [see tg3_get_invariants()] - */ + if (len > TG3_RX_COPY_THRESH(tp)) { int skb_size; skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key, @@ -4669,12 +4687,12 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) tg3_recycle_rx(tnapi, tpr, opaque_key, desc_idx, *post_ptr); - copy_skb = netdev_alloc_skb(tp->dev, - len + TG3_RAW_IP_ALIGN); + copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN + + TG3_RAW_IP_ALIGN); if (copy_skb == NULL) goto drop_it_no_recycle; - skb_reserve(copy_skb, TG3_RAW_IP_ALIGN); + skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN); skb_put(copy_skb, len); pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE); skb_copy_from_linear_data(skb, copy_skb->data, len); @@ -4700,12 +4718,29 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) goto next_pkt; } + if (desc->type_flags & RXD_FLAG_VLAN && + !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) { + vtag = desc->err_vlan & RXD_VLAN_MASK; #if TG3_VLAN_TAG_USED - if (tp->vlgrp != NULL && - desc->type_flags & RXD_FLAG_VLAN) { - vlan_gro_receive(&tnapi->napi, tp->vlgrp, - desc->err_vlan & RXD_VLAN_MASK, skb); - } else + if (tp->vlgrp) + hw_vlan = true; + else +#endif + { + struct vlan_ethhdr *ve = (struct vlan_ethhdr *) + __skb_push(skb, VLAN_HLEN); + + memmove(ve, skb->data + VLAN_HLEN, + ETH_ALEN * 2); + ve->h_vlan_proto = htons(ETH_P_8021Q); + ve->h_vlan_TCI = htons(vtag); + } + } + +#if TG3_VLAN_TAG_USED + if (hw_vlan) + vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb); + else #endif napi_gro_receive(&tnapi->napi, skb); @@ -5439,12 +5474,12 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi, len = skb_shinfo(skb)->frags[i-1].size; pci_unmap_single(tp->pdev, - pci_unmap_addr(&tnapi->tx_buffers[entry], + dma_unmap_addr(&tnapi->tx_buffers[entry], mapping), len, PCI_DMA_TODEVICE); if (i == 0) { tnapi->tx_buffers[entry].skb = new_skb; - pci_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, + dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, new_addr); } else { tnapi->tx_buffers[entry].skb = NULL; @@ -5574,7 +5609,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, } tnapi->tx_buffers[entry].skb = skb; - pci_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); + dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) && !mss && skb->len > ETH_DATA_LEN) @@ -5600,7 +5635,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, goto dma_error; tnapi->tx_buffers[entry].skb = NULL; - pci_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, + dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); tg3_set_txd(tnapi, entry, mapping, len, @@ -5630,7 +5665,7 @@ dma_error: entry = tnapi->tx_prod; tnapi->tx_buffers[entry].skb = NULL; pci_unmap_single(tp->pdev, - pci_unmap_addr(&tnapi->tx_buffers[entry], mapping), + dma_unmap_addr(&tnapi->tx_buffers[entry], mapping), skb_headlen(skb), PCI_DMA_TODEVICE); for (i = 0; i <= last; i++) { @@ -5638,7 +5673,7 @@ dma_error: entry = NEXT_TX(entry); pci_unmap_page(tp->pdev, - pci_unmap_addr(&tnapi->tx_buffers[entry], + dma_unmap_addr(&tnapi->tx_buffers[entry], mapping), frag->size, PCI_DMA_TODEVICE); } @@ -5740,7 +5775,7 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb, hdr_len = ip_tcp_len + tcp_opt_len; if (unlikely((ETH_HLEN + hdr_len) > 80) && (tp->tg3_flags2 & TG3_FLG2_TSO_BUG)) - return (tg3_tso_bug(tp, skb)); + return tg3_tso_bug(tp, skb); base_flags |= (TXD_FLAG_CPU_PRE_DMA | TXD_FLAG_CPU_POST_DMA); @@ -5800,7 +5835,7 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb, } tnapi->tx_buffers[entry].skb = skb; - pci_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); + dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); would_hit_hwbug = 0; @@ -5836,7 +5871,7 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb, len, PCI_DMA_TODEVICE); tnapi->tx_buffers[entry].skb = NULL; - pci_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, + dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping); if (pci_dma_mapping_error(tp->pdev, mapping)) goto dma_error; @@ -5901,7 +5936,7 @@ dma_error: entry = tnapi->tx_prod; tnapi->tx_buffers[entry].skb = NULL; pci_unmap_single(tp->pdev, - pci_unmap_addr(&tnapi->tx_buffers[entry], mapping), + dma_unmap_addr(&tnapi->tx_buffers[entry], mapping), skb_headlen(skb), PCI_DMA_TODEVICE); for (i = 0; i <= last; i++) { @@ -5909,7 +5944,7 @@ dma_error: entry = NEXT_TX(entry); pci_unmap_page(tp->pdev, - pci_unmap_addr(&tnapi->tx_buffers[entry], + dma_unmap_addr(&tnapi->tx_buffers[entry], mapping), frag->size, PCI_DMA_TODEVICE); } @@ -6194,7 +6229,7 @@ static void tg3_free_rings(struct tg3 *tp) } pci_unmap_single(tp->pdev, - pci_unmap_addr(txp, mapping), + dma_unmap_addr(txp, mapping), skb_headlen(skb), PCI_DMA_TODEVICE); txp->skb = NULL; @@ -6204,7 +6239,7 @@ static void tg3_free_rings(struct tg3 *tp) for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) { txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)]; pci_unmap_page(tp->pdev, - pci_unmap_addr(txp, mapping), + dma_unmap_addr(txp, mapping), skb_shinfo(skb)->frags[k].size, PCI_DMA_TODEVICE); i++; @@ -7870,9 +7905,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) val = (RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT) | - (RX_STD_MAX_SIZE << 2); + (TG3_RX_STD_DMA_SZ << 2); else - val = RX_STD_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT; + val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT; } else val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT; @@ -8665,6 +8700,7 @@ static int tg3_test_msi(struct tg3 *tp) pci_disable_msi(tp->pdev); tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI; + tp->napi[0].irq_vec = tp->pdev->irq; err = tg3_request_irq(tp, 0); if (err) @@ -9250,10 +9286,10 @@ static void __tg3_set_rx_mode(struct net_device *dev) rx_mode |= RX_MODE_PROMISC; } else if (dev->flags & IFF_ALLMULTI) { /* Accept all multicast. */ - tg3_set_multi (tp, 1); + tg3_set_multi(tp, 1); } else if (netdev_mc_empty(dev)) { /* Reject all multicast. */ - tg3_set_multi (tp, 0); + tg3_set_multi(tp, 0); } else { /* Accept one or more multicast(s). */ struct netdev_hw_addr *ha; @@ -9995,7 +10031,7 @@ static int tg3_set_tx_csum(struct net_device *dev, u32 data) return 0; } -static int tg3_get_sset_count (struct net_device *dev, int sset) +static int tg3_get_sset_count(struct net_device *dev, int sset) { switch (sset) { case ETH_SS_TEST: @@ -10007,7 +10043,7 @@ static int tg3_get_sset_count (struct net_device *dev, int sset) } } -static void tg3_get_strings (struct net_device *dev, u32 stringset, u8 *buf) +static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf) { switch (stringset) { case ETH_SS_STATS: @@ -10054,7 +10090,7 @@ static int tg3_phys_id(struct net_device *dev, u32 data) return 0; } -static void tg3_get_ethtool_stats (struct net_device *dev, +static void tg3_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *tmp_stats) { struct tg3 *tp = netdev_priv(dev); @@ -10707,7 +10743,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode) rx_skb = tpr->rx_std_buffers[desc_idx].skb; - map = pci_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping); + map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping); pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE); for (i = 14; i < tx_len; i++) { @@ -12958,6 +12994,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) tp->dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) tp->dev->features |= NETIF_F_IPV6_CSUM; + tp->dev->features |= NETIF_F_GRO; } /* Determine TSO capabilities */ @@ -13468,10 +13505,15 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) else tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES; - tp->rx_offset = NET_IP_ALIGN; + tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM; + tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD; if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 && - (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) - tp->rx_offset = 0; + (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) { + tp->rx_offset -= NET_IP_ALIGN; +#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS + tp->rx_copy_thresh = ~(u16)0; +#endif + } tp->rx_std_max_post = TG3_RX_RING_SIZE;