diff options
| author | John Fastabend <john.r.fastabend@intel.com> | 2010-07-26 20:41:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-07-27 13:18:13 -0700 |
| commit | 56075a98dfb887981ee0e4b6a768cd53f2514f4c (patch) | |
| tree | 09bf8cfad0eba47672f42968a710e45c7c2254be /drivers/net/ixgbe | |
| parent | feb8f47809fcc60250d28a6ddabc0ddbe9360d7c (diff) | |
| download | blackbird-op-linux-56075a98dfb887981ee0e4b6a768cd53f2514f4c.tar.gz blackbird-op-linux-56075a98dfb887981ee0e4b6a768cd53f2514f4c.zip | |
ixgbe: priority tagging FCoE frames without FCoE offload
The DCB user priority for FCoE is available regardless of whether
FCoE offload is enabled (IXGBE_FLAG_FCOE_ENABLED bit is set).
This allows proper DCB user priority tagging for FCoE
traffic on both 82598 and 82599 devices.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@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.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 920375951454..bc22ab4336be 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -4783,6 +4783,7 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) #ifdef CONFIG_IXGBE_DCB /* Default traffic class to use for FCoE */ adapter->fcoe.tc = IXGBE_FCOE_DEFTC; + adapter->fcoe.up = IXGBE_FCOE_DEFTC; #endif #endif /* IXGBE_FCOE */ } @@ -6147,21 +6148,26 @@ static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) struct ixgbe_adapter *adapter = netdev_priv(dev); int txq = smp_processor_id(); +#ifdef IXGBE_FCOE + if ((skb->protocol == htons(ETH_P_FCOE)) || + (skb->protocol == htons(ETH_P_FIP))) { + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { + txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); + txq += adapter->ring_feature[RING_F_FCOE].mask; + return txq; + } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { + txq = adapter->fcoe.up; + return txq; + } + } +#endif + if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { while (unlikely(txq >= dev->real_num_tx_queues)) txq -= dev->real_num_tx_queues; return txq; } -#ifdef IXGBE_FCOE - if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && - ((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; - } -#endif if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { if (skb->priority == TC_PRIO_CONTROL) txq = adapter->ring_feature[RING_F_DCB].indices-1; @@ -6205,18 +6211,15 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, tx_ring = adapter->tx_ring[skb->queue_mapping]; #ifdef IXGBE_FCOE - if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { -#ifdef CONFIG_IXGBE_DCB - /* 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 + /* for FCoE with DCB, we force the priority to what + * was specified by the switch */ + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED && + (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); /* flag for FCoE offloads */ if (skb->protocol == htons(ETH_P_FCOE)) tx_flags |= IXGBE_TX_FLAGS_FCOE; |
