Commit 45a5ead0 authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by David S. Miller
Browse files

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: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b9473560

drivers/net/ixgbe/ixgbe_ethtool.c

+9 −2
Original line number Diff line number Diff line
@@ -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;

}

drivers/net/ixgbe/ixgbe_main.c

+9 −0
Original line number Diff line number Diff line
@@ -4189,12 +4189,18 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter, 
				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 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, 
	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;

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