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>
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index f0a20fa..a499b6b 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -311,10 +311,17 @@
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;
}
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 42b803d..c3dff8f 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -4189,12 +4189,18 @@
if (ip_hdr(skb)->protocol == IPPROTO_TCP)
type_tucmd_mlhl |=
IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ else if (ip_hdr(skb)->protocol == IPPROTO_SCTP)
+ type_tucmd_mlhl |=
+ IXGBE_ADVTXD_TUCMD_L4T_SCTP;
break;
case cpu_to_be16(ETH_P_IPV6):
/* XXX what about other V6 headers?? */
if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
type_tucmd_mlhl |=
IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ else if (ipv6_hdr(skb)->nexthdr == IPPROTO_SCTP)
+ type_tucmd_mlhl |=
+ IXGBE_ADVTXD_TUCMD_L4T_SCTP;
break;
default:
if (unlikely(net_ratelimit())) {
@@ -4718,6 +4724,9 @@
netdev->features |= NETIF_F_TSO6;
netdev->features |= NETIF_F_GRO;
+ if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+ netdev->features |= NETIF_F_SCTP_CSUM;
+
netdev->vlan_features |= NETIF_F_TSO;
netdev->vlan_features |= NETIF_F_TSO6;
netdev->vlan_features |= NETIF_F_IP_CSUM;