#else
#define DRIVERNAPI "-NAPI"
#endif
-#define DRV_VERSION "1.0.117-k2"DRIVERNAPI
+#define DRV_VERSION "1.0.126-k2"DRIVERNAPI
char ixgb_driver_version[] = DRV_VERSION;
static char ixgb_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
ixgb_up(struct ixgb_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- int err;
+ int err, irq_flags = IRQF_SHARED;
int max_frame = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
struct ixgb_hw *hw = &adapter->hw;
/* disable interrupts and get the hardware into a known state */
IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff);
-#ifdef CONFIG_PCI_MSI
- {
- boolean_t pcix = (IXGB_READ_REG(&adapter->hw, STATUS) &
- IXGB_STATUS_PCIX_MODE) ? TRUE : FALSE;
- adapter->have_msi = TRUE;
-
- if (!pcix)
- adapter->have_msi = FALSE;
- else if((err = pci_enable_msi(adapter->pdev))) {
- DPRINTK(PROBE, ERR,
- "Unable to allocate MSI interrupt Error: %d\n", err);
- adapter->have_msi = FALSE;
+ /* only enable MSI if bus is in PCI-X mode */
+ if (IXGB_READ_REG(&adapter->hw, STATUS) & IXGB_STATUS_PCIX_MODE) {
+ err = pci_enable_msi(adapter->pdev);
+ if (!err) {
+ adapter->have_msi = 1;
+ irq_flags = 0;
+ }
/* proceed to try to request regular interrupt */
}
- }
-#endif
- if((err = request_irq(adapter->pdev->irq, &ixgb_intr,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM,
- netdev->name, netdev))) {
+ err = request_irq(adapter->pdev->irq, &ixgb_intr, irq_flags,
+ netdev->name, netdev);
+ if (err) {
+ if (adapter->have_msi)
+ pci_disable_msi(adapter->pdev);
DPRINTK(PROBE, ERR,
"Unable to allocate interrupt Error: %d\n", err);
return err;
ixgb_irq_disable(adapter);
free_irq(adapter->pdev->irq, netdev);
-#ifdef CONFIG_PCI_MSI
- if(adapter->have_msi == TRUE)
+
+ if (adapter->have_msi)
pci_disable_msi(adapter->pdev);
-#endif
if(kill_watchdog)
del_timer_sync(&adapter->watchdog_timer);
#ifdef CONFIG_IXGB_NAPI
NETIF_F_HW_VLAN_TX |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
-#ifdef NETIF_F_TSO
netdev->features |= NETIF_F_TSO;
-#endif
#ifdef NETIF_F_LLTX
netdev->features |= NETIF_F_LLTX;
#endif
/* round up to nearest 4K */
txdr->size = txdr->count * sizeof(struct ixgb_tx_desc);
- IXGB_ROUNDUP(txdr->size, 4096);
+ txdr->size = ALIGN(txdr->size, 4096);
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
if(!txdr->desc) {
/* Round up to nearest 4K */
rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
- IXGB_ROUNDUP(rxdr->size, 4096);
+ rxdr->size = ALIGN(rxdr->size, 4096);
rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
static int
ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
{
-#ifdef NETIF_F_TSO
struct ixgb_context_desc *context_desc;
unsigned int i;
uint8_t ipcss, ipcso, tucss, tucso, hdr_len;
if (likely(skb_is_gso(skb))) {
struct ixgb_buffer *buffer_info;
+ struct iphdr *iph;
+
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (err)
return err;
}
- hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
mss = skb_shinfo(skb)->gso_size;
- skb->nh.iph->tot_len = 0;
- skb->nh.iph->check = 0;
- skb->h.th->check = ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0, IPPROTO_TCP, 0);
- ipcss = skb->nh.raw - skb->data;
- ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
- ipcse = skb->h.raw - skb->data - 1;
- tucss = skb->h.raw - skb->data;
- tucso = (void *)&(skb->h.th->check) - (void *)skb->data;
+ iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP, 0);
+ ipcss = skb_network_offset(skb);
+ ipcso = (void *)&(iph->check) - (void *)skb->data;
+ ipcse = skb_transport_offset(skb) - 1;
+ tucss = skb_transport_offset(skb);
+ tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
tucse = 0;
i = adapter->tx_ring.next_to_use;
return 1;
}
-#endif
return 0;
}
if(likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
struct ixgb_buffer *buffer_info;
- css = skb->h.raw - skb->data;
+ css = skb_transport_offset(skb);
cso = css + skb->csum_offset;
i = adapter->tx_ring.next_to_use;
struct ixgb_buffer *buffer_info;
int len = skb->len;
unsigned int offset = 0, size, count = 0, i;
+ unsigned int mss = skb_shinfo(skb)->gso_size;
unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
unsigned int f;
while(len) {
buffer_info = &tx_ring->buffer_info[i];
size = min(len, IXGB_MAX_DATA_PER_TXD);
+ /* Workaround for premature desc write-backs
+ * in TSO mode. Append 4-byte sentinel desc */
+ if (unlikely(mss && !nr_frags && size == len && size > 8))
+ size -= 4;
+
buffer_info->length = size;
WARN_ON(buffer_info->dma != 0);
buffer_info->dma =
while(len) {
buffer_info = &tx_ring->buffer_info[i];
size = min(len, IXGB_MAX_DATA_PER_TXD);
+
+ /* Workaround for premature desc write-backs
+ * in TSO mode. Append 4-byte sentinel desc */
+ if (unlikely(mss && !nr_frags && size == len
+ && size > 8))
+ size -= 4;
+
buffer_info->length = size;
buffer_info->dma =
pci_map_page(adapter->pdev,
IXGB_WRITE_REG(&adapter->hw, TDT, i);
}
+static int __ixgb_maybe_stop_tx(struct net_device *netdev, int size)
+{
+ struct ixgb_adapter *adapter = netdev_priv(netdev);
+ struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+
+ netif_stop_queue(netdev);
+ /* Herbert's original patch had:
+ * smp_mb__after_netif_stop_queue();
+ * but since that doesn't exist yet, just open code it. */
+ smp_mb();
+
+ /* We need to check again in a case another CPU has just
+ * made room available. */
+ if (likely(IXGB_DESC_UNUSED(tx_ring) < size))
+ return -EBUSY;
+
+ /* A reprieve! */
+ netif_start_queue(netdev);
+ ++adapter->restart_queue;
+ return 0;
+}
+
+static int ixgb_maybe_stop_tx(struct net_device *netdev,
+ struct ixgb_desc_ring *tx_ring, int size)
+{
+ if (likely(IXGB_DESC_UNUSED(tx_ring) >= size))
+ return 0;
+ return __ixgb_maybe_stop_tx(netdev, size);
+}
+
+
/* Tx Descriptors needed, worst case */
#define TXD_USE_COUNT(S) (((S) >> IXGB_MAX_TXD_PWR) + \
(((S) & (IXGB_MAX_DATA_PER_TXD - 1)) ? 1 : 0))
-#define DESC_NEEDED TXD_USE_COUNT(IXGB_MAX_DATA_PER_TXD) + \
- MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1
+#define DESC_NEEDED TXD_USE_COUNT(IXGB_MAX_DATA_PER_TXD) /* skb->date */ + \
+ MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1 /* for context */ \
+ + 1 /* one more needed for sentinel TSO workaround */
static int
ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
spin_lock_irqsave(&adapter->tx_lock, flags);
#endif
- if(unlikely(IXGB_DESC_UNUSED(&adapter->tx_ring) < DESC_NEEDED)) {
+ if (unlikely(ixgb_maybe_stop_tx(netdev, &adapter->tx_ring,
+ DESC_NEEDED))) {
netif_stop_queue(netdev);
spin_unlock_irqrestore(&adapter->tx_lock, flags);
return NETDEV_TX_BUSY;
#ifdef NETIF_F_LLTX
/* Make sure there is space in the ring for the next send. */
- if(unlikely(IXGB_DESC_UNUSED(&adapter->tx_ring) < DESC_NEEDED))
- netif_stop_queue(netdev);
+ ixgb_maybe_stop_tx(netdev, &adapter->tx_ring, DESC_NEEDED);
spin_unlock_irqrestore(&adapter->tx_lock, flags);
struct pci_dev *pdev = adapter->pdev;
/* Prevent stats update while adapter is being reset */
- if (pdev->error_state && pdev->error_state != pci_channel_io_normal)
+ if (pci_channel_offline(pdev))
return;
if((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) ||
netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data - NET_IP_ALIGN,
- skb->data - NET_IP_ALIGN,
- length + NET_IP_ALIGN);
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
/* save the skb in buffer_info as good */
buffer_info->skb = skb;
skb = new_skb;
ixgb_irq_disable(adapter);
- if(adapter->vlgrp)
- adapter->vlgrp->vlan_devices[vid] = NULL;
+ vlan_group_set_device(adapter->vlgrp, vid, NULL);
ixgb_irq_enable(adapter);
if(adapter->vlgrp) {
uint16_t vid;
for(vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
- if(!adapter->vlgrp->vlan_devices[vid])
+ if(!vlan_group_get_device(adapter->vlgrp, vid))
continue;
ixgb_vlan_rx_add_vid(adapter->netdev, vid);
}
projects / linux-2.6-omap-h63xx.git / blobdiff