diff options
| author |   Alexander Duyck <aduyck@mirantis.com> | 2016-04-14 17:19:25 -0400 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-05-01 17:05:16 -0700 |
| commit | 1c7b4a23d12f63a2864c2a67ad96e74d0dbbf39c (patch) | |
| tree | 02f6522050b9df9de63f3b11661d2312fff17f65 /drivers/net/ethernet/intel/i40evf/i40evf_main.c | |
| parent | i40evf: make use of BIT() macro to avoid signed left shift (diff) | |
| download | linux-dev-1c7b4a23d12f63a2864c2a67ad96e74d0dbbf39c.tar.xz linux-dev-1c7b4a23d12f63a2864c2a67ad96e74d0dbbf39c.zip | |
i40e/i40evf: Add support for GSO partial with UDP_TUNNEL_CSUM and GRE_CSUM
This patch makes it so that i40e and i40evf can use GSO_PARTIAL to support
segmentation for frames with checksums enabled in outer headers. As a
result we can now send data over these types of tunnels at over 20Gb/s
versus the 12Gb/s that was previously possible on my system.
The advantage with the i40e parts is that this offload is mostly
transparent as the hardware still deals with the inner and/or outer IPv4
headers so the IP ID is still incrementing for both when this offload is
performed.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40evf/i40evf_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_main.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index b9b1dd831a16..9f0bd7acc22a 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -2240,20 +2240,25 @@ int i40evf_process_config(struct i40evf_adapter *adapter) NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GSO_GRE | + NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM | + NETIF_F_GSO_PARTIAL | NETIF_F_SCTP_CRC | NETIF_F_RXHASH | NETIF_F_RXCSUM | 0; if (!(adapter->flags & I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE)) - netdev->hw_enc_features ^= NETIF_F_GSO_UDP_TUNNEL_CSUM; + netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM; + + netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM; /* record features VLANs can make use of */ - netdev->vlan_features |= netdev->hw_enc_features; + netdev->vlan_features |= netdev->hw_enc_features | + NETIF_F_TSO_MANGLEID; /* Write features and hw_features separately to avoid polluting * with, or dropping, features that are set when we registgered. @@ -2261,6 +2266,7 @@ int i40evf_process_config(struct i40evf_adapter *adapter) netdev->hw_features |= netdev->hw_enc_features; netdev->features |= netdev->hw_enc_features | I40EVF_VLAN_FEATURES; + netdev->hw_enc_features |= NETIF_F_TSO_MANGLEID; /* disable VLAN features if not supported */ if (!(vfres->vf_offload_flags & I40E_VIRTCHNL_VF_OFFLOAD_VLAN)) |