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ixgbe: enable hardware offload for sctp

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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>
This commit is contained in:
Jesse Brandeburg 2009-04-27 22:36:35 +00:00 committed by David S. Miller
parent b9473560c6
commit 45a5ead022
2 changed files with 18 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/net/ixgbe/ixgbe_ethtool.c
View file

@ -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;
}

9
drivers/net/ixgbe/ixgbe_main.c
View file

@ -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;