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| author | Or Gerlitz <ogerlitz@mellanox.com> | 2013-12-23 16:09:44 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-31 14:31:43 -0500 |
| commit | 837052d0ccc5a789a578f8b628ba154b63bd51ea (patch) | |
| tree | be8f0742d4f92bbbbd09b0710dc9eab5a3e85811 /drivers/net/ethernet/mellanox/mlx4/en_resources.c | |
| parent | 7ffdf726cfe0d188907bdbb0e7729fb35a69c219 (diff) | |
| download | blackbird-op-linux-837052d0ccc5a789a578f8b628ba154b63bd51ea.tar.gz blackbird-op-linux-837052d0ccc5a789a578f8b628ba154b63bd51ea.zip | |
net/mlx4_en: Add netdev support for TCP/IP offloads of vxlan tunneling
When the device tunneling offloads mode is vxlan do the following
- call SET_PORT with the relevant setting
- add DMFS steering vxlan rule for the device self and multicast mac addresses
of the form: {<ETH, outer-mac> <VXLAN, ANY vnid> <ETH, ANY mac>} --> RSS QP
- set relevant QPC fields in RSS context and RX ring QPs
- in TX flow, set WQE fields to generate HW checksum, and handle gso skbs
which are marked for encapsulation such that the HW will segment them properly.
- in RX flow, read HW offloaded checksum for encapsulated packets from the CQE
- advertize hw_enc_features and NETIF_F_GSO_UDP_TUNNEL to the networking stack
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_resources.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_resources.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_resources.c b/drivers/net/ethernet/mellanox/mlx4/en_resources.c index d3f508697a3d..f1a5500ff72d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_resources.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_resources.c @@ -68,6 +68,12 @@ void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2); if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX)) context->param3 |= cpu_to_be32(1 << 30); + + if (!is_tx && !rss && + (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)) { + en_dbg(HW, priv, "Setting RX qp %x tunnel mode to RX tunneled & non-tunneled\n", qpn); + context->srqn = cpu_to_be32(7 << 28); /* this fills bits 30:28 */ + } } |
