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authorYi Zou <yi.zou@intel.com>2009-09-03 14:56:10 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-03 20:01:53 -0700
commit09ad1cc099f4ba4735d11ce1c5f024ffc521be3b (patch)
treeeec3363dfe538be591f23ad4e4180dc49db477ab /drivers/net/ixgbe
parent8de8b2e63490fe7e90128299983198d09d1679c9 (diff)
ixgbe: Distribute transmission of FCoE traffic in 82599
This adds a simple selection of a FCoE tx queue based on the current cpu id to distribute transmission of FCoE traffic evenly among multiple FCoE transmit queues. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe')
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 724754a64d0..45bf8b9716e 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5168,9 +5168,15 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
tx_ring = &adapter->tx_ring[r_idx];
if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
- (skb->protocol == htons(ETH_P_FCOE)))
+ (skb->protocol == htons(ETH_P_FCOE))) {
tx_flags |= IXGBE_TX_FLAGS_FCOE;
-
+#ifdef IXGBE_FCOE
+ r_idx = smp_processor_id();
+ r_idx &= (adapter->ring_feature[RING_F_FCOE].indices - 1);
+ r_idx += adapter->ring_feature[RING_F_FCOE].mask;
+ tx_ring = &adapter->tx_ring[r_idx];
+#endif
+ }
/* four things can cause us to need a context descriptor */
if (skb_is_gso(skb) ||
(skb->ip_summed == CHECKSUM_PARTIAL) ||