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| author | Vladislav Zolotarov <vladz@broadcom.com> | 2010-07-06 04:09:43 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-07-07 15:45:00 -0700 |
| commit | 6f3c72a2148f5f99c4dcc97cbcea06916136c862 (patch) | |
| tree | 7b391458927693c963af123491c17bd3826c8967 /drivers/net/bnx2x_main.c | |
| parent | 49085bd7d498c47d635851cfda22627b085cd9af (diff) | |
| download | linux-6f3c72a2148f5f99c4dcc97cbcea06916136c862.tar.gz linux-6f3c72a2148f5f99c4dcc97cbcea06916136c862.tar.bz2 linux-6f3c72a2148f5f99c4dcc97cbcea06916136c862.zip | |
bnx2x: Set RXHASH for LRO packets
Set Toeplitz hash both for LRO and none-LRO skbs.
The first CQE (TPA_START) will contain a hash for an LRO packet.
Current code sets skb->rx_hash for none-LRO skbs only.
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>
Diffstat (limited to 'drivers/net/bnx2x_main.c')
| -rw-r--r-- | drivers/net/bnx2x_main.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 29e293f97dba..51b788339c90 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -1545,6 +1545,20 @@ static inline void bnx2x_update_rx_prod(struct bnx2x *bp, fp->index, bd_prod, rx_comp_prod, rx_sge_prod); } +/* Set Toeplitz hash value in the skb using the value from the + * CQE (calculated by HW). + */ +static inline void bnx2x_set_skb_rxhash(struct bnx2x *bp, union eth_rx_cqe *cqe, + struct sk_buff *skb) +{ + /* Set Toeplitz hash from CQE */ + if ((bp->dev->features & NETIF_F_RXHASH) && + (cqe->fast_path_cqe.status_flags & + ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) + skb->rxhash = + le32_to_cpu(cqe->fast_path_cqe.rss_hash_result); +} + static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) { struct bnx2x *bp = fp->bp; @@ -1582,7 +1596,7 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) struct sw_rx_bd *rx_buf = NULL; struct sk_buff *skb; union eth_rx_cqe *cqe; - u8 cqe_fp_flags, cqe_fp_status_flags; + u8 cqe_fp_flags; u16 len, pad; comp_ring_cons = RCQ_BD(sw_comp_cons); @@ -1598,7 +1612,6 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) cqe = &fp->rx_comp_ring[comp_ring_cons]; cqe_fp_flags = cqe->fast_path_cqe.type_error_flags; - cqe_fp_status_flags = cqe->fast_path_cqe.status_flags; DP(NETIF_MSG_RX_STATUS, "CQE type %x err %x status %x" " queue %x vlan %x len %u\n", CQE_TYPE(cqe_fp_flags), @@ -1634,6 +1647,10 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) bnx2x_tpa_start(fp, queue, skb, bd_cons, bd_prod); + + /* Set Toeplitz hash for an LRO skb */ + bnx2x_set_skb_rxhash(bp, cqe, skb); + goto next_rx; } @@ -1726,11 +1743,8 @@ reuse_rx: skb->protocol = eth_type_trans(skb, bp->dev); - if ((bp->dev->features & NETIF_F_RXHASH) && - (cqe_fp_status_flags & - ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) - skb->rxhash = le32_to_cpu( - cqe->fast_path_cqe.rss_hash_result); + /* Set Toeplitz hash for a none-LRO skb */ + bnx2x_set_skb_rxhash(bp, cqe, skb); skb->ip_summed = CHECKSUM_NONE; if (bp->rx_csum) { |