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ixgbe: Priority tag FIP frames 

Currently FIP (FCoE Initialization Protocol) frames
are going untagged. This causes various problems
with FCFs (switches) that have negotiated a priority
over dcbx. This patch tags FIP frames with the same
priority as the FCoE frames.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Robert Love 2010-03-24 12:45:00 +00:00 committed by David S. Miller
parent a7551b75fe
commit ca77cd59d2
1 changed files with 17 additions and 9 deletions
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26
drivers/net/ixgbe/ixgbe_main.c
View File

@ -5648,7 +5648,8 @@ static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb)
#ifdef IXGBE_FCOE
if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
(skb->protocol == htons(ETH_P_FCOE))) {
((skb->protocol == htons(ETH_P_FCOE)) ||
(skb->protocol == htons(ETH_P_FIP)))) {
txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1);
txq += adapter->ring_feature[RING_F_FCOE].mask;
return txq;
@ -5695,18 +5696,25 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
tx_ring = adapter->tx_ring[skb->queue_mapping];
if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
(skb->protocol == htons(ETH_P_FCOE))) {
tx_flags |= IXGBE_TX_FLAGS_FCOE;
#ifdef IXGBE_FCOE
if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
#ifdef CONFIG_IXGBE_DCB
tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK
<< IXGBE_TX_FLAGS_VLAN_SHIFT);
tx_flags |= ((adapter->fcoe.up << 13)
<< IXGBE_TX_FLAGS_VLAN_SHIFT);
#endif
/* for FCoE with DCB, we force the priority to what
* was specified by the switch */
if ((skb->protocol == htons(ETH_P_FCOE)) ||
(skb->protocol == htons(ETH_P_FIP))) {
tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK
<< IXGBE_TX_FLAGS_VLAN_SHIFT);
tx_flags |= ((adapter->fcoe.up << 13)
<< IXGBE_TX_FLAGS_VLAN_SHIFT);
}
#endif
/* flag for FCoE offloads */
if (skb->protocol == htons(ETH_P_FCOE))
tx_flags |= IXGBE_TX_FLAGS_FCOE;
}
#endif
/* four things can cause us to need a context descriptor */
if (skb_is_gso(skb) ||
(skb->ip_summed == CHECKSUM_PARTIAL) ||