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path: root/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
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Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index e79ba3927344..ae73ef14fdf3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
@@ -616,11 +616,11 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
int i, fcoe_q, fcoe_i;
u32 etqf;
- /* leave registers unconfigued if FCoE is disabled */
- if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED))
+ /* Minimal functionality for FCoE requires at least CRC offloads */
+ if (!(adapter->netdev->features & NETIF_F_FCOE_CRC))
return;
- /* Enable L2 EtherType filter for FCoE, necessary for FCoE Rx CRC */
+ /* Enable L2 EtherType filter for FCoE, needed for FCoE CRC and DDP */
etqf = ETH_P_FCOE | IXGBE_ETQF_FCOE | IXGBE_ETQF_FILTER_EN;
if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
etqf |= IXGBE_ETQF_POOL_ENABLE;
@@ -629,6 +629,10 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FCOE), etqf);
IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0);
+ /* leave registers un-configured if FCoE is disabled */
+ if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED))
+ return;
+
/* Use one or more Rx queues for FCoE by redirection table */
for (i = 0; i < IXGBE_FCRETA_SIZE; i++) {
fcoe_i = fcoe->offset + (i % fcoe->indices);
@@ -804,7 +808,7 @@ int ixgbe_fcoe_enable(struct net_device *netdev)
/* enable FCoE and notify stack */
adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
- netdev->features |= NETIF_F_FSO | NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU;
+ netdev->features |= NETIF_F_FCOE_MTU;
netdev_features_change(netdev);
/* release existing queues and reallocate them */
@@ -844,9 +848,7 @@ int ixgbe_fcoe_disable(struct net_device *netdev)
/* disable FCoE and notify stack */
adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
- netdev->features &= ~(NETIF_F_FCOE_CRC |
- NETIF_F_FSO |
- NETIF_F_FCOE_MTU);
+ netdev->features &= ~NETIF_F_FCOE_MTU;
netdev_features_change(netdev);