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path: root/drivers/net/bnx2.c
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Diffstat (limited to 'drivers/net/bnx2.c')
-rw-r--r--drivers/net/bnx2.c37
1 files changed, 20 insertions, 17 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 469d259e6a20..f19a1e9a6b7f 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -2323,17 +2323,25 @@ bnx2_phy_int(struct bnx2 *bp)
2323 2323
2324} 2324}
2325 2325
2326static inline u16
2327bnx2_get_hw_tx_cons(struct bnx2 *bp)
2328{
2329 u16 cons;
2330
2331 cons = bp->status_blk->status_tx_quick_consumer_index0;
2332
2333 if (unlikely((cons & MAX_TX_DESC_CNT) == MAX_TX_DESC_CNT))
2334 cons++;
2335 return cons;
2336}
2337
2326static void 2338static void
2327bnx2_tx_int(struct bnx2 *bp) 2339bnx2_tx_int(struct bnx2 *bp)
2328{ 2340{
2329 struct status_block *sblk = bp->status_blk;
2330 u16 hw_cons, sw_cons, sw_ring_cons; 2341 u16 hw_cons, sw_cons, sw_ring_cons;
2331 int tx_free_bd = 0; 2342 int tx_free_bd = 0;
2332 2343
2333 hw_cons = bp->hw_tx_cons = sblk->status_tx_quick_consumer_index0; 2344 hw_cons = bnx2_get_hw_tx_cons(bp);
2334 if ((hw_cons & MAX_TX_DESC_CNT) == MAX_TX_DESC_CNT) {
2335 hw_cons++;
2336 }
2337 sw_cons = bp->tx_cons; 2345 sw_cons = bp->tx_cons;
2338 2346
2339 while (sw_cons != hw_cons) { 2347 while (sw_cons != hw_cons) {
@@ -2385,14 +2393,10 @@ bnx2_tx_int(struct bnx2 *bp)
2385 2393
2386 dev_kfree_skb(skb); 2394 dev_kfree_skb(skb);
2387 2395
2388 hw_cons = bp->hw_tx_cons = 2396 hw_cons = bnx2_get_hw_tx_cons(bp);
2389 sblk->status_tx_quick_consumer_index0;
2390
2391 if ((hw_cons & MAX_TX_DESC_CNT) == MAX_TX_DESC_CNT) {
2392 hw_cons++;
2393 }
2394 } 2397 }
2395 2398
2399 bp->hw_tx_cons = hw_cons;
2396 bp->tx_cons = sw_cons; 2400 bp->tx_cons = sw_cons;
2397 /* Need to make the tx_cons update visible to bnx2_start_xmit() 2401 /* Need to make the tx_cons update visible to bnx2_start_xmit()
2398 * before checking for netif_queue_stopped(). Without the 2402 * before checking for netif_queue_stopped(). Without the
@@ -2822,7 +2826,7 @@ bnx2_has_work(struct bnx2 *bp)
2822 struct status_block *sblk = bp->status_blk; 2826 struct status_block *sblk = bp->status_blk;
2823 2827
2824 if ((bnx2_get_hw_rx_cons(bp) != bp->rx_cons) || 2828 if ((bnx2_get_hw_rx_cons(bp) != bp->rx_cons) ||
2825 (sblk->status_tx_quick_consumer_index0 != bp->hw_tx_cons)) 2829 (bnx2_get_hw_tx_cons(bp) != bp->hw_tx_cons))
2826 return 1; 2830 return 1;
2827 2831
2828 if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) != 2832 if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
@@ -2851,7 +2855,7 @@ static int bnx2_poll_work(struct bnx2 *bp, int work_done, int budget)
2851 REG_RD(bp, BNX2_HC_COMMAND); 2855 REG_RD(bp, BNX2_HC_COMMAND);
2852 } 2856 }
2853 2857
2854 if (sblk->status_tx_quick_consumer_index0 != bp->hw_tx_cons) 2858 if (bnx2_get_hw_tx_cons(bp) != bp->hw_tx_cons)
2855 bnx2_tx_int(bp); 2859 bnx2_tx_int(bp);
2856 2860
2857 if (bnx2_get_hw_rx_cons(bp) != bp->rx_cons) 2861 if (bnx2_get_hw_rx_cons(bp) != bp->rx_cons)
@@ -4917,7 +4921,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
4917 REG_RD(bp, BNX2_HC_COMMAND); 4921 REG_RD(bp, BNX2_HC_COMMAND);
4918 4922
4919 udelay(5); 4923 udelay(5);
4920 rx_start_idx = bp->status_blk->status_rx_quick_consumer_index0; 4924 rx_start_idx = bnx2_get_hw_rx_cons(bp);
4921 4925
4922 num_pkts = 0; 4926 num_pkts = 0;
4923 4927
@@ -4947,11 +4951,10 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
4947 pci_unmap_single(bp->pdev, map, pkt_size, PCI_DMA_TODEVICE); 4951 pci_unmap_single(bp->pdev, map, pkt_size, PCI_DMA_TODEVICE);
4948 dev_kfree_skb(skb); 4952 dev_kfree_skb(skb);
4949 4953
4950 if (bp->status_blk->status_tx_quick_consumer_index0 != bp->tx_prod) { 4954 if (bnx2_get_hw_tx_cons(bp) != bp->tx_prod)
4951 goto loopback_test_done; 4955 goto loopback_test_done;
4952 }
4953 4956
4954 rx_idx = bp->status_blk->status_rx_quick_consumer_index0; 4957 rx_idx = bnx2_get_hw_rx_cons(bp);
4955 if (rx_idx != rx_start_idx + num_pkts) { 4958 if (rx_idx != rx_start_idx + num_pkts) {
4956 goto loopback_test_done; 4959 goto loopback_test_done;
4957 } 4960 }