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>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 208fb4a..0c553f6 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5648,7 +5648,8 @@
#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 @@
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);
+ /* 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
-#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) ||