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bnx2: Add support for skb->rxhash. 

Add skb->rxhash support for TCP packets only because the bnx2 RSS hash
does not hash UDP ports.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2010-07-03 20:42:16 +00:00 committed by David S. Miller
parent 3d5f3a7bbd
commit fdc8541d69
2 changed files with 17 additions and 1 deletions
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15
drivers/net/bnx2.c
View File

@ -3219,6 +3219,10 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
L2_FHDR_ERRORS_UDP_XSUM)) == 0))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if ((bp->dev->features & NETIF_F_RXHASH) &&
((status & L2_FHDR_STATUS_USE_RXHASH) ==
L2_FHDR_STATUS_USE_RXHASH))
skb->rxhash = rx_hdr->l2_fhdr_hash;
skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);
@ -7558,6 +7562,12 @@ bnx2_set_tx_csum(struct net_device *dev, u32 data)
return (ethtool_op_set_tx_csum(dev, data));
}
static int
bnx2_set_flags(struct net_device *dev, u32 data)
{
return ethtool_op_set_flags(dev, data, ETH_FLAG_RXHASH);
}
static const struct ethtool_ops bnx2_ethtool_ops = {
.get_settings = bnx2_get_settings,
.set_settings = bnx2_set_settings,
@ -7587,6 +7597,8 @@ static const struct ethtool_ops bnx2_ethtool_ops = {
.phys_id = bnx2_phys_id,
.get_ethtool_stats = bnx2_get_ethtool_stats,
.get_sset_count = bnx2_get_sset_count,
.set_flags = bnx2_set_flags,
.get_flags = ethtool_op_get_flags,
};
/* Called with rtnl_lock */
@ -8333,7 +8345,8 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
memcpy(dev->dev_addr, bp->mac_addr, 6);
memcpy(dev->perm_addr, bp->mac_addr, 6);
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO;
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO |
NETIF_F_RXHASH;
vlan_features_add(dev, NETIF_F_IP_CSUM | NETIF_F_SG);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
dev->features |= NETIF_F_IPV6_CSUM;

3
drivers/net/bnx2.h
View File

@ -295,6 +295,9 @@ struct l2_fhdr {
#define L2_FHDR_ERRORS_TCP_XSUM (1<<28)
#define L2_FHDR_ERRORS_UDP_XSUM (1<<31)
#define L2_FHDR_STATUS_USE_RXHASH \
(L2_FHDR_STATUS_TCP_SEGMENT | L2_FHDR_STATUS_RSS_HASH)
u32 l2_fhdr_hash;
#if defined(__BIG_ENDIAN)
u16 l2_fhdr_pkt_len;