From fdc8541d693a04ba3d6c335dace19b8362ac4e83 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sat, 3 Jul 2010 20:42:16 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 15 ++++++++++++++- drivers/net/bnx2.h | 3 +++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 0614ca0b15fe..1450c75bc19d 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -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; diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index ddaa3fc99876..b9af6bcef894 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -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; -- 2.20.1