From 8307fa3e86a83924dd7f8310ce1e051f34986fe8 Mon Sep 17 00:00:00 2001 From: Vladislav Zolotarov Date: Mon, 13 Dec 2010 05:44:09 +0000 Subject: bnx2x: add a select queue callback This callback required to allow FCoE traffic to be sent on separate priority queue from other L2 traffic, which is managed by PFC in HW. Signed-off-by: Vladislav Zolotarov Signed-off-by: Shmulik Ravid-Rabinovitz Signed-off-by: Dmitry Kravkov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/bnx2x/bnx2x_cmn.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'drivers/net/bnx2x/bnx2x_cmn.c') diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c index fa12365faec2..10eef5434386 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.c +++ b/drivers/net/bnx2x/bnx2x_cmn.c @@ -1167,6 +1167,35 @@ void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) netif_tx_disable(bp->dev); } +u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb) +{ +#ifdef BCM_CNIC + struct bnx2x *bp = netdev_priv(dev); + if (NO_FCOE(bp)) + return skb_tx_hash(dev, skb); + else { + struct ethhdr *hdr = (struct ethhdr *)skb->data; + u16 ether_type = ntohs(hdr->h_proto); + + /* Skip VLAN tag if present */ + if (ether_type == ETH_P_8021Q) { + struct vlan_ethhdr *vhdr = + (struct vlan_ethhdr *)skb->data; + + ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); + } + + /* If ethertype is FCoE or FIP - use FCoE ring */ + if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) + return bnx2x_fcoe(bp, index); + } +#endif + /* Select a none-FCoE queue: if FCoE is enabled, exclude FCoE L2 ring + */ + return __skb_tx_hash(dev, skb, + dev->real_num_tx_queues - FCOE_CONTEXT_USE); +} + void bnx2x_set_num_queues(struct bnx2x *bp) { switch (bp->multi_mode) { -- cgit v1.2.3-55-g7522