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bnx2x: Set RXHASH for LRO packets

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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>
This commit is contained in:
Vladislav Zolotarov 2010-07-06 04:09:43 +00:00 committed by David S. Miller
parent 49085bd7d4
commit 6f3c72a214
1 changed files with 21 additions and 7 deletions
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28
drivers/net/bnx2x_main.c
View file

@ -1545,6 +1545,20 @@ static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
fp->index, bd_prod, rx_comp_prod, rx_sge_prod); 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) static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
{ {
struct bnx2x *bp = fp->bp; 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 sw_rx_bd *rx_buf = NULL;
struct sk_buff *skb; struct sk_buff *skb;
union eth_rx_cqe *cqe; union eth_rx_cqe *cqe;
u8 cqe_fp_flags, cqe_fp_status_flags; u8 cqe_fp_flags;
u16 len, pad; u16 len, pad;
comp_ring_cons = RCQ_BD(sw_comp_cons); 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->rx_comp_ring[comp_ring_cons];
cqe_fp_flags = cqe->fast_path_cqe.type_error_flags; 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" DP(NETIF_MSG_RX_STATUS, "CQE type %x err %x status %x"
" queue %x vlan %x len %u\n", CQE_TYPE(cqe_fp_flags), " 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, bnx2x_tpa_start(fp, queue, skb,
bd_cons, bd_prod); bd_cons, bd_prod);
/* Set Toeplitz hash for an LRO skb */
bnx2x_set_skb_rxhash(bp, cqe, skb);
goto next_rx; goto next_rx;
} }
@ -1726,11 +1743,8 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
skb->protocol = eth_type_trans(skb, bp->dev); skb->protocol = eth_type_trans(skb, bp->dev);
if ((bp->dev->features & NETIF_F_RXHASH) && /* Set Toeplitz hash for a none-LRO skb */
(cqe_fp_status_flags & bnx2x_set_skb_rxhash(bp, cqe, skb);
ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG))
skb->rxhash = le32_to_cpu(
cqe->fast_path_cqe.rss_hash_result);
skb->ip_summed = CHECKSUM_NONE; skb->ip_summed = CHECKSUM_NONE;
if (bp->rx_csum) { if (bp->rx_csum) {