[BNX2]: Move tx indexes into bnx2_napi struct.

Tx related fields used in NAPI polling are moved from the main
bnx2 struct to the bnx2_napi struct.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 20 insertions, 17 deletions

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 3f754e6b48d6..0300a759728c 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -226,7 +226,7 @@ static struct flash_spec flash_5709 = {
 
 MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);
 
-static inline u32 bnx2_tx_avail(struct bnx2 *bp)
+static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_napi *bnapi)
 {
         u32 diff;
 
@@ -235,7 +235,7 @@ static inline u32 bnx2_tx_avail(struct bnx2 *bp)
         /* The ring uses 256 indices for 255 entries, one of them
          * needs to be skipped.
          */
-        diff = bp->tx_prod - bp->tx_cons;
+        diff = bp->tx_prod - bnapi->tx_cons;
         if (unlikely(diff >= TX_DESC_CNT)) {
                 diff &= 0xffff;
                 if (diff == TX_DESC_CNT)
@@ -2358,7 +2358,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
         int tx_free_bd = 0;
 
         hw_cons = bnx2_get_hw_tx_cons(bnapi);
-        sw_cons = bp->tx_cons;
+        sw_cons = bnapi->tx_cons;
 
         while (sw_cons != hw_cons) {
                 struct sw_bd *tx_buf;
@@ -2412,8 +2412,8 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
                 hw_cons = bnx2_get_hw_tx_cons(bnapi);
         }
 
-        bp->hw_tx_cons = hw_cons;
-        bp->tx_cons = sw_cons;
+        bnapi->hw_tx_cons = hw_cons;
+        bnapi->tx_cons = sw_cons;
         /* Need to make the tx_cons update visible to bnx2_start_xmit()
          * before checking for netif_queue_stopped().  Without the
          * memory barrier, there is a small possibility that bnx2_start_xmit()
@@ -2422,10 +2422,10 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
         smp_mb();
 
         if (unlikely(netif_queue_stopped(bp->dev)) &&
-                     (bnx2_tx_avail(bp) > bp->tx_wake_thresh)) {
+                     (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh)) {
                 netif_tx_lock(bp->dev);
                 if ((netif_queue_stopped(bp->dev)) &&
-                    (bnx2_tx_avail(bp) > bp->tx_wake_thresh))
+                    (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh))
                         netif_wake_queue(bp->dev);
                 netif_tx_unlock(bp->dev);
         }
@@ -2846,7 +2846,7 @@ bnx2_has_work(struct bnx2_napi *bnapi)
         struct status_block *sblk = bp->status_blk;
 
         if ((bnx2_get_hw_rx_cons(bnapi) != bp->rx_cons) ||
-            (bnx2_get_hw_tx_cons(bnapi) != bp->hw_tx_cons))
+            (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons))
                 return 1;
 
         if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
@@ -2876,7 +2876,7 @@ static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,
                 REG_RD(bp, BNX2_HC_COMMAND);
         }
 
-        if (bnx2_get_hw_tx_cons(bnapi) != bp->hw_tx_cons)
+        if (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons)
                 bnx2_tx_int(bp, bnapi);
 
         if (bnx2_get_hw_rx_cons(bnapi) != bp->rx_cons)
@@ -4381,6 +4381,7 @@ bnx2_init_tx_ring(struct bnx2 *bp)
 {
         struct tx_bd *txbd;
         u32 cid;
+        struct bnx2_napi *bnapi = &bp->bnx2_napi;
 
         bp->tx_wake_thresh = bp->tx_ring_size / 2;
 
@@ -4390,8 +4391,8 @@ bnx2_init_tx_ring(struct bnx2 *bp)
         txbd->tx_bd_haddr_lo = (u64) bp->tx_desc_mapping & 0xffffffff;
 
         bp->tx_prod = 0;
-        bp->tx_cons = 0;
-        bp->hw_tx_cons = 0;
+        bnapi->tx_cons = 0;
+        bnapi->hw_tx_cons = 0;
         bp->tx_prod_bseq = 0;
 
         cid = TX_CID;
@@ -5440,8 +5441,10 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
         u32 len, vlan_tag_flags, last_frag, mss;
         u16 prod, ring_prod;
         int i;
+        struct bnx2_napi *bnapi = &bp->bnx2_napi;
 
-        if (unlikely(bnx2_tx_avail(bp) < (skb_shinfo(skb)->nr_frags + 1))) {
+        if (unlikely(bnx2_tx_avail(bp, bnapi) <
+            (skb_shinfo(skb)->nr_frags + 1))) {
                 netif_stop_queue(dev);
                 printk(KERN_ERR PFX "%s: BUG! Tx ring full when queue awake!\n",
                         dev->name);
@@ -5556,9 +5559,9 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
         bp->tx_prod = prod;
         dev->trans_start = jiffies;
 
-        if (unlikely(bnx2_tx_avail(bp) <= MAX_SKB_FRAGS)) {
+        if (unlikely(bnx2_tx_avail(bp, bnapi) <= MAX_SKB_FRAGS)) {
                 netif_stop_queue(dev);
-                if (bnx2_tx_avail(bp) > bp->tx_wake_thresh)
+                if (bnx2_tx_avail(bp, bnapi) > bp->tx_wake_thresh)
                         netif_wake_queue(dev);
         }
 
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 345b6db9a947..958fdda09c6b 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6509,6 +6509,9 @@ struct bnx2_napi {
         struct status_block     *status_blk;
         u32                     last_status_idx;
         u32                     int_num;
+
+        u16                     tx_cons;
+        u16                     hw_tx_cons;
 };
 
 struct bnx2 {
@@ -6539,9 +6542,6 @@ struct bnx2 {
         u32             tx_bidx_addr;
         u32             tx_bseq_addr;
 
-        u16             tx_cons __attribute__((aligned(L1_CACHE_BYTES)));
-        u16             hw_tx_cons;
-
         struct bnx2_napi        bnx2_napi;
 
 #ifdef BCM_VLAN