commit fdc8541d693a04ba3d6c335dace19b8362ac4e83
author Michael Chan <mchan@broadcom.com> Sat Jul 03 20:42:16 2010 +0000
committer David S. Miller <davem@davemloft.net> Sun Jul 04 11:44:00 2010 -0700
tree 562c2b0bb62f52d21ca98d0d8a3e05fb325bf8af
parent 3d5f3a7bbd06065b06c7f65f948437ded40255ec

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>

drivers/net/bnx2.c

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 0614ca0..1450c75 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3219,6 +3219,10 @@
 					      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 @@
 		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 @@
 	.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 @@
 	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;