tg3: Move per-int tx members to a per-int struct

This patch moves the tx_prod, tx_cons, tx_pending, tx_ring, and
tx_buffers transmit ring device members to a per-interrupt structure.
It also adds a new transmit producer mailbox member (prodmbox) and
converts the code to use it rather than a preprocessor constant.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 78 insertions, 72 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 939574c571f7..e36b0b259722 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -136,7 +136,7 @@
 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 
 /* minimum number of free TX descriptors required to wake up TX process */
-#define TG3_TX_WAKEUP_THRESH(tp)                ((tp)->tx_pending / 4)
+#define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 
 #define TG3_RAW_IP_ALIGN 2
 
@@ -656,7 +656,7 @@ static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
                         work_exists = 1;
         }
         /* check for RX/TX work to do */
-        if (sblk->idx[0].tx_consumer != tp->tx_cons ||
+        if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
             sblk->idx[0].rx_producer != tnapi->rx_rcb_ptr)
                 work_exists = 1;
 
@@ -4269,11 +4269,11 @@ static void tg3_tx_recover(struct tg3 *tp)
         spin_unlock(&tp->lock);
 }
 
-static inline u32 tg3_tx_avail(struct tg3 *tp)
+static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
 {
         smp_mb();
-        return (tp->tx_pending -
-                ((tp->tx_prod - tp->tx_cons) & (TG3_TX_RING_SIZE - 1)));
+        return tnapi->tx_pending -
+               ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
 }
 
 /* Tigon3 never reports partial packet sends.  So we do not
@@ -4284,10 +4284,10 @@ static void tg3_tx(struct tg3_napi *tnapi)
 {
         struct tg3 *tp = tnapi->tp;
         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
-        u32 sw_idx = tp->tx_cons;
+        u32 sw_idx = tnapi->tx_cons;
 
         while (sw_idx != hw_idx) {
-                struct tx_ring_info *ri = &tp->tx_buffers[sw_idx];
+                struct tx_ring_info *ri = &tnapi->tx_buffers[sw_idx];
                 struct sk_buff *skb = ri->skb;
                 int i, tx_bug = 0;
 
@@ -4303,7 +4303,7 @@ static void tg3_tx(struct tg3_napi *tnapi)
                 sw_idx = NEXT_TX(sw_idx);
 
                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
-                        ri = &tp->tx_buffers[sw_idx];
+                        ri = &tnapi->tx_buffers[sw_idx];
                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
                                 tx_bug = 1;
                         sw_idx = NEXT_TX(sw_idx);
@@ -4317,7 +4317,7 @@ static void tg3_tx(struct tg3_napi *tnapi)
                 }
         }
 
-        tp->tx_cons = sw_idx;
+        tnapi->tx_cons = sw_idx;
 
         /* Need to make the tx_cons update visible to tg3_start_xmit()
          * before checking for netif_queue_stopped().  Without the
@@ -4327,10 +4327,10 @@ static void tg3_tx(struct tg3_napi *tnapi)
         smp_mb();
 
         if (unlikely(netif_queue_stopped(tp->dev) &&
-                     (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))) {
+                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
                 netif_tx_lock(tp->dev);
                 if (netif_queue_stopped(tp->dev) &&
-                    (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))
+                    (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
                         netif_wake_queue(tp->dev);
                 netif_tx_unlock(tp->dev);
         }
@@ -4668,7 +4668,7 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
         }
 
         /* run TX completion thread */
-        if (sblk->idx[0].tx_consumer != tp->tx_cons) {
+        if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
                 tg3_tx(tnapi);
                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
                         return work_done;
@@ -5044,13 +5044,14 @@ static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
 #endif
 }
 
-static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, u32);
+static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
 
 /* Workaround 4GB and 40-bit hardware DMA bugs. */
 static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
                                        u32 last_plus_one, u32 *start,
                                        u32 base_flags, u32 mss)
 {
+        struct tg3_napi *tnapi = &tp->napi[0];
         struct sk_buff *new_skb;
         dma_addr_t new_addr = 0;
         u32 entry = *start;
@@ -5085,7 +5086,7 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
                         dev_kfree_skb(new_skb);
                         new_skb = NULL;
                 } else {
-                        tg3_set_txd(tp, entry, new_addr, new_skb->len,
+                        tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
                                     base_flags, 1 | (mss << 1));
                         *start = NEXT_TX(entry);
                 }
@@ -5094,11 +5095,10 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
         /* Now clean up the sw ring entries. */
         i = 0;
         while (entry != last_plus_one) {
-                if (i == 0) {
-                        tp->tx_buffers[entry].skb = new_skb;
-                } else {
-                        tp->tx_buffers[entry].skb = NULL;
-                }
+                if (i == 0)
+                        tnapi->tx_buffers[entry].skb = new_skb;
+                else
+                        tnapi->tx_buffers[entry].skb = NULL;
                 entry = NEXT_TX(entry);
                 i++;
         }
@@ -5109,11 +5109,11 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
         return ret;
 }
 
-static void tg3_set_txd(struct tg3 *tp, int entry,
+static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
                         dma_addr_t mapping, int len, u32 flags,
                         u32 mss_and_is_end)
 {
-        struct tg3_tx_buffer_desc *txd = &tp->tx_ring[entry];
+        struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
         int is_end = (mss_and_is_end & 0x1);
         u32 mss = (mss_and_is_end >> 1);
         u32 vlan_tag = 0;
@@ -5141,6 +5141,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
         u32 len, entry, base_flags, mss;
         struct skb_shared_info *sp;
         dma_addr_t mapping;
+        struct tg3_napi *tnapi = &tp->napi[0];
 
         len = skb_headlen(skb);
 
@@ -5149,7 +5150,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
          * interrupt.  Furthermore, IRQ processing runs lockless so we have
          * no IRQ context deadlocks to worry about either.  Rejoice!
          */
-        if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
+        if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
                 if (!netif_queue_stopped(dev)) {
                         netif_stop_queue(dev);
 
@@ -5160,7 +5161,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 return NETDEV_TX_BUSY;
         }
 
-        entry = tp->tx_prod;
+        entry = tnapi->tx_prod;
         base_flags = 0;
         mss = 0;
         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
@@ -5208,9 +5209,9 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         mapping = sp->dma_head;
 
-        tp->tx_buffers[entry].skb = skb;
+        tnapi->tx_buffers[entry].skb = skb;
 
-        tg3_set_txd(tp, entry, mapping, len, base_flags,
+        tg3_set_txd(tnapi, entry, mapping, len, base_flags,
                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
 
         entry = NEXT_TX(entry);
@@ -5225,9 +5226,9 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
                         len = frag->size;
                         mapping = sp->dma_maps[i];
-                        tp->tx_buffers[entry].skb = NULL;
+                        tnapi->tx_buffers[entry].skb = NULL;
 
-                        tg3_set_txd(tp, entry, mapping, len,
+                        tg3_set_txd(tnapi, entry, mapping, len,
                                     base_flags, (i == last) | (mss << 1));
 
                         entry = NEXT_TX(entry);
@@ -5235,12 +5236,12 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
         }
 
         /* Packets are ready, update Tx producer idx local and on card. */
-        tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
+        tw32_tx_mbox(tnapi->prodmbox, entry);
 
-        tp->tx_prod = entry;
-        if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
+        tnapi->tx_prod = entry;
+        if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
                 netif_stop_queue(dev);
-                if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
+                if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
                         netif_wake_queue(tp->dev);
         }
 
@@ -5258,11 +5259,12 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *, struct net_device *);
 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
 {
         struct sk_buff *segs, *nskb;
+        u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
 
         /* Estimate the number of fragments in the worst case */
-        if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))) {
+        if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
                 netif_stop_queue(tp->dev);
-                if (tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))
+                if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
                         return NETDEV_TX_BUSY;
 
                 netif_wake_queue(tp->dev);
@@ -5295,6 +5297,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
         struct skb_shared_info *sp;
         int would_hit_hwbug;
         dma_addr_t mapping;
+        struct tg3_napi *tnapi = &tp->napi[0];
 
         len = skb_headlen(skb);
 
@@ -5303,7 +5306,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
          * interrupt.  Furthermore, IRQ processing runs lockless so we have
          * no IRQ context deadlocks to worry about either.  Rejoice!
          */
-        if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
+        if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
                 if (!netif_queue_stopped(dev)) {
                         netif_stop_queue(dev);
 
@@ -5314,7 +5317,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
                 return NETDEV_TX_BUSY;
         }
 
-        entry = tp->tx_prod;
+        entry = tnapi->tx_prod;
         base_flags = 0;
         if (skb->ip_summed == CHECKSUM_PARTIAL)
                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
@@ -5384,7 +5387,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
 
         mapping = sp->dma_head;
 
-        tp->tx_buffers[entry].skb = skb;
+        tnapi->tx_buffers[entry].skb = skb;
 
         would_hit_hwbug = 0;
 
@@ -5393,7 +5396,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
         else if (tg3_4g_overflow_test(mapping, len))
                 would_hit_hwbug = 1;
 
-        tg3_set_txd(tp, entry, mapping, len, base_flags,
+        tg3_set_txd(tnapi, entry, mapping, len, base_flags,
                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
 
         entry = NEXT_TX(entry);
@@ -5409,7 +5412,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
                         len = frag->size;
                         mapping = sp->dma_maps[i];
 
-                        tp->tx_buffers[entry].skb = NULL;
+                        tnapi->tx_buffers[entry].skb = NULL;
 
                         if (tg3_4g_overflow_test(mapping, len))
                                 would_hit_hwbug = 1;
@@ -5418,10 +5421,10 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
                                 would_hit_hwbug = 1;
 
                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
-                                tg3_set_txd(tp, entry, mapping, len,
+                                tg3_set_txd(tnapi, entry, mapping, len,
                                             base_flags, (i == last)|(mss << 1));
                         else
-                                tg3_set_txd(tp, entry, mapping, len,
+                                tg3_set_txd(tnapi, entry, mapping, len,
                                             base_flags, (i == last));
 
                         entry = NEXT_TX(entry);
@@ -5446,12 +5449,12 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
         }
 
         /* Packets are ready, update Tx producer idx local and on card. */
-        tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
+        tw32_tx_mbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, entry);
 
-        tp->tx_prod = entry;
-        if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
+        tnapi->tx_prod = entry;
+        if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
                 netif_stop_queue(dev);
-                if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
+                if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
                         netif_wake_queue(tp->dev);
         }
 
@@ -5522,8 +5525,8 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)
 static void tg3_rx_prodring_free(struct tg3 *tp,
                                  struct tg3_rx_prodring_set *tpr)
 {
-        struct ring_info *rxp;
         int i;
+        struct ring_info *rxp;
 
         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
                 rxp = &tpr->rx_std_buffers[i];
@@ -5710,13 +5713,14 @@ err_out:
  */
 static void tg3_free_rings(struct tg3 *tp)
 {
+        struct tg3_napi *tnapi = &tp->napi[0];
         int i;
 
         for (i = 0; i < TG3_TX_RING_SIZE; ) {
                 struct tx_ring_info *txp;
                 struct sk_buff *skb;
 
-                txp = &tp->tx_buffers[i];
+                txp = &tnapi->tx_buffers[i];
                 skb = txp->skb;
 
                 if (skb == NULL) {
@@ -5751,7 +5755,7 @@ static int tg3_init_rings(struct tg3 *tp)
         tg3_free_rings(tp);
 
         /* Zero out all descriptors. */
-        memset(tp->tx_ring, 0, TG3_TX_RING_BYTES);
+        memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
 
         tnapi->rx_rcb_ptr = 0;
         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
@@ -5767,12 +5771,12 @@ static void tg3_free_consistent(struct tg3 *tp)
 {
         struct tg3_napi *tnapi = &tp->napi[0];
 
-        kfree(tp->tx_buffers);
-        tp->tx_buffers = NULL;
-        if (tp->tx_ring) {
+        kfree(tnapi->tx_buffers);
+        tnapi->tx_buffers = NULL;
+        if (tnapi->tx_ring) {
                 pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
-                        tp->tx_ring, tp->tx_desc_mapping);
-                tp->tx_ring = NULL;
+                        tnapi->tx_ring, tnapi->tx_desc_mapping);
+                tnapi->tx_ring = NULL;
         }
         if (tnapi->rx_rcb) {
                 pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
@@ -5804,14 +5808,14 @@ static int tg3_alloc_consistent(struct tg3 *tp)
         if (tg3_rx_prodring_init(tp, &tp->prodring[0]))
                 return -ENOMEM;
 
-        tp->tx_buffers = kzalloc(sizeof(struct tx_ring_info) *
-                                 TG3_TX_RING_SIZE, GFP_KERNEL);
-        if (!tp->tx_buffers)
+        tnapi->tx_buffers = kzalloc(sizeof(struct tx_ring_info) *
+                                    TG3_TX_RING_SIZE, GFP_KERNEL);
+        if (!tnapi->tx_buffers)
                 goto err_out;
 
-        tp->tx_ring = pci_alloc_consistent(tp->pdev, TG3_TX_RING_BYTES,
-                                           &tp->tx_desc_mapping);
-        if (!tp->tx_ring)
+        tnapi->tx_ring = pci_alloc_consistent(tp->pdev, TG3_TX_RING_BYTES,
+                                              &tnapi->tx_desc_mapping);
+        if (!tnapi->tx_ring)
                 goto err_out;
 
         tnapi->hw_status = pci_alloc_consistent(tp->pdev,
@@ -7094,13 +7098,15 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
                                       BDINFO_FLAGS_DISABLED);
         }
 
-        tp->tx_prod = 0;
-        tp->tx_cons = 0;
-        tw32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
+        tp->napi[0].tx_prod = 0;
+        tp->napi[0].tx_cons = 0;
         tw32_tx_mbox(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
 
+        val = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
+        tw32_mailbox(val, 0);
+
         tg3_set_bdinfo(tp, NIC_SRAM_SEND_RCB,
-                       tp->tx_desc_mapping,
+                       tp->napi[0].tx_desc_mapping,
                        (TG3_TX_RING_SIZE <<
                         BDINFO_FLAGS_MAXLEN_SHIFT),
                        NIC_SRAM_TX_BUFFER_DESC);
@@ -9093,7 +9099,7 @@ static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *
         else
                 ering->rx_jumbo_pending = 0;
 
-        ering->tx_pending = tp->tx_pending;
+        ering->tx_pending = tp->napi[0].tx_pending;
 }
 
 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
@@ -9123,7 +9129,7 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e
             tp->rx_pending > 63)
                 tp->rx_pending = 63;
         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
-        tp->tx_pending = ering->tx_pending;
+        tp->napi[0].tx_pending = ering->tx_pending;
 
         if (netif_running(dev)) {
                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
@@ -9928,14 +9934,13 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
 
         num_pkts = 0;
 
-        tg3_set_txd(tp, tp->tx_prod, map, tx_len, 0, 1);
+        tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
 
-        tp->tx_prod++;
+        tnapi->tx_prod++;
         num_pkts++;
 
-        tw32_tx_mbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW,
-                     tp->tx_prod);
-        tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW);
+        tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
+        tr32_mailbox(tnapi->prodmbox);
 
         udelay(10);
 
@@ -9948,7 +9953,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
 
                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
-                if ((tx_idx == tp->tx_prod) &&
+                if ((tx_idx == tnapi->tx_prod) &&
                     (rx_idx == (rx_start_idx + num_pkts)))
                         break;
         }
@@ -9956,7 +9961,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
         dev_kfree_skb(skb);
 
-        if (tx_idx != tp->tx_prod)
+        if (tx_idx != tnapi->tx_prod)
                 goto out;
 
         if (rx_idx != rx_start_idx + num_pkts)
@@ -13415,11 +13420,12 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 
         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
-        tp->tx_pending = TG3_DEF_TX_RING_PENDING;
 
         tp->napi[0].tp = tp;
         tp->napi[0].int_mbox = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
         tp->napi[0].consmbox = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
+        tp->napi[0].prodmbox = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
+        tp->napi[0].tx_pending = TG3_DEF_TX_RING_PENDING;
         netif_napi_add(dev, &tp->napi[0].napi, tg3_poll, 64);
         dev->ethtool_ops = &tg3_ethtool_ops;
         dev->watchdog_timeo = TG3_TX_TIMEOUT;