ixgbe: Introduce Multiqueue TX

Now that the irq vector code is in place, we can add the conditional
multiqueue TX code in the driver. This requires the optional
CONFIG_NETDEVICES_MULTIQUEUE=y and will not be enabled without
it.

Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Waskiewicz Jr, Peter P <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 14 insertions, 1 deletions

diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index a119cbd8dbb8..85b7d15e1217 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -246,13 +246,26 @@ static int ixgbe_set_tx_csum(struct net_device *netdev, u32 data)
 
 static int ixgbe_set_tso(struct net_device *netdev, u32 data)
 {
-
         if (data) {
                 netdev->features |= NETIF_F_TSO;
                 netdev->features |= NETIF_F_TSO6;
         } else {
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
+                struct ixgbe_adapter *adapter = netdev_priv(netdev);
+                int i;
+#endif
+                netif_stop_queue(netdev);
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
+                for (i = 0; i < adapter->num_tx_queues; i++)
+                        netif_stop_subqueue(netdev, i);
+#endif
                 netdev->features &= ~NETIF_F_TSO;
                 netdev->features &= ~NETIF_F_TSO6;
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
+                for (i = 0; i < adapter->num_tx_queues; i++)
+                        netif_start_subqueue(netdev, i);
+#endif
+                netif_start_queue(netdev);
         }
         return 0;
 }