ixgbe: enable hardware offload for sctp

Inspired by: Vlad Yasevich <vladislav.yasevich@hp.com>

This is the code to enable ixgbe for hardware offload support
of CRC32c on both transmit and receive of SCTP traffic.

only 82599 supports this offload, not 82598.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index f0a20facc650..a499b6b31ca2 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -311,10 +311,17 @@ static u32 ixgbe_get_tx_csum(struct net_device *netdev)
 
 static int ixgbe_set_tx_csum(struct net_device *netdev, u32 data)
 {
-        if (data)
+        struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+        if (data) {
                 netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
-        else
+                if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+                        netdev->features |= NETIF_F_SCTP_CSUM;
+        } else {
                 netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+                if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+                        netdev->features &= ~NETIF_F_SCTP_CSUM;
+        }
 
         return 0;
 }