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| author | Eilon Greenstein <eilong@broadcom.com> | 2009-08-12 12:23:20 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-13 10:02:39 +0400 |
| commit | 619e7a66b515f5f6b1cbe6f378f6a4ca3a65ac52 (patch) | |
| tree | 56f2904a10f96b642b4f95ceb41de6d748beeb7c | |
| parent | 6fe49bb978de3de0ba7ff9d6b2d55a15518db2a3 (diff) | |
| download | linux-619e7a66b515f5f6b1cbe6f378f6a4ca3a65ac52.tar.xz | |
bnx2x: Prefetch the page containing the BD descriptor
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bnx2x_main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 88f30d254095..bdc2e71f491c 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -1498,6 +1498,13 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) bd_prod = RX_BD(bd_prod); bd_cons = RX_BD(bd_cons); + /* Prefetch the page containing the BD descriptor + at producer's index. It will be needed when new skb is + allocated */ + prefetch((void *)(PAGE_ALIGN((unsigned long) + (&fp->rx_desc_ring[bd_prod])) - + PAGE_SIZE + 1)); + cqe = &fp->rx_comp_ring[comp_ring_cons]; cqe_fp_flags = cqe->fast_path_cqe.type_error_flags; |