ixgbe: Add support for NETIF_F_FCOE_MTU to 82599 devices

Enable netdev feature flag bit NETIF_F_FCOE_MTU for 82599 devices and enable
jumbo frame correspondingly when NETIF_F_FCOE_MTU is set.

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>

2 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index 116f12cc2c7..34bca45fbd1 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -148,8 +148,10 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                                 IXGBE_FCRETA_SIZE;
                         netdev->features |= NETIF_F_FCOE_CRC;
                         netdev->features |= NETIF_F_FSO;
+                        netdev->features |= NETIF_F_FCOE_MTU;
                         netdev->vlan_features |= NETIF_F_FCOE_CRC;
                         netdev->vlan_features |= NETIF_F_FSO;
+                        netdev->vlan_features |= NETIF_F_FCOE_MTU;
                         netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
                         netdev_features_change(netdev);
                 }
@@ -180,8 +182,10 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                                 adapter->ring_feature[RING_F_FCOE].indices = 0;
                                 netdev->features &= ~NETIF_F_FCOE_CRC;
                                 netdev->features &= ~NETIF_F_FSO;
+                                netdev->features &= ~NETIF_F_FCOE_MTU;
                                 netdev->vlan_features &= ~NETIF_F_FCOE_CRC;
                                 netdev->vlan_features &= ~NETIF_F_FSO;
+                                netdev->vlan_features &= ~NETIF_F_FCOE_MTU;
                                 netdev->fcoe_ddp_xid = 0;
                                 netdev_features_change(netdev);
                         }
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 8a8518dd694..d69d277886e 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2026,7 +2026,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
         else
                 hlreg0 |= IXGBE_HLREG0_JUMBOEN;
 #ifdef IXGBE_FCOE
-        if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)
+        if (netdev->features & NETIF_F_FCOE_MTU)
                 hlreg0 |= IXGBE_HLREG0_JUMBOEN;
 #endif
         IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
@@ -2057,7 +2057,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
                         rx_ring->flags |= IXGBE_RING_RX_PS_ENABLED;
 
 #ifdef IXGBE_FCOE
-                if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
+                if (netdev->features & NETIF_F_FCOE_MTU) {
                         struct ixgbe_ring_feature *f;
                         f = &adapter->ring_feature[RING_F_FCOE];
                         if ((i >= f->mask) && (i < f->mask + f->indices)) {
@@ -2609,7 +2609,7 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
 
 #ifdef IXGBE_FCOE
         /* adjust max frame to be able to do baby jumbo for FCoE */
-        if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
+        if ((netdev->features & NETIF_F_FCOE_MTU) &&
             (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE))
                 max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE;