From f124488e4713dc9afa2028553261b1d399286e68 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Mon, 12 Mar 2012 08:53:14 +0000 Subject: bnx2x: code doesn't use stats for allocating Rx BDs Previously, allocation used queue statistics directly in its calcualtion. This change causes these calculations to be summed into the statistics, without being affected by them. Signed-off-by: Dmitry Kravkov Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'drivers/net/ethernet/broadcom') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 33aa7de24016..cc02ae51a30d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -1143,7 +1143,7 @@ static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, { struct bnx2x *bp = fp->bp; u16 ring_prod, cqe_ring_prod; - int i; + int i, failure_cnt = 0; fp->rx_comp_cons = 0; cqe_ring_prod = ring_prod = 0; @@ -1153,18 +1153,17 @@ static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, */ for (i = 0; i < rx_ring_size; i++) { if (bnx2x_alloc_rx_data(bp, fp, ring_prod) < 0) { - fp->eth_q_stats.rx_skb_alloc_failed++; + failure_cnt++; continue; } ring_prod = NEXT_RX_IDX(ring_prod); cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); - WARN_ON(ring_prod <= (i - fp->eth_q_stats.rx_skb_alloc_failed)); + WARN_ON(ring_prod <= (i - failure_cnt)); } - if (fp->eth_q_stats.rx_skb_alloc_failed) - BNX2X_ERR("was only able to allocate " - "%d rx skbs on queue[%d]\n", - (i - fp->eth_q_stats.rx_skb_alloc_failed), fp->index); + if (failure_cnt) + BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", + i - failure_cnt, fp->index); fp->rx_bd_prod = ring_prod; /* Limit the CQE producer by the CQE ring size */ @@ -1172,7 +1171,9 @@ static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, cqe_ring_prod); fp->rx_pkt = fp->rx_calls = 0; - return i - fp->eth_q_stats.rx_skb_alloc_failed; + fp->eth_q_stats.rx_skb_alloc_failed += failure_cnt; + + return i - failure_cnt; } /* Statistics ID are global per chip/path, while Client IDs for E1x are per -- cgit v1.2.3