diff options
| author | Maor Gottlieb <maorg@mellanox.com> | 2017-10-19 08:25:56 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-10-25 14:19:32 -0400 |
| commit | 309fa3470fcaf96b295d2106ab17c00dbf7f3920 (patch) | |
| tree | f09efcc53eba087a30a91954f60024d9ef342ee7 /drivers/infiniband | |
| parent | f95ef6cbae61fa1dd563f5c0f6a0e5b512fda5ba (diff) | |
IB/mlx5: Add support for RSS on the inner packet
Some user space application would like to do RSS on the inner
packet fields instead on the outer.
When MLX5_RX_HASH_INNER is set with one or more of the other
hash fields, then the RSS will be done using the inner packet.
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 53bb0d5cad3d..9e22dead259a 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1403,6 +1403,12 @@ static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, return -EOPNOTSUPP; } + if (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_INNER && + !(ucmd.flags & MLX5_QP_FLAG_TUNNEL_OFFLOADS)) { + mlx5_ib_dbg(dev, "Tunnel offloads must be set for inner RSS\n"); + return -EOPNOTSUPP; + } + err = ib_copy_to_udata(udata, &resp, min_resp_len); if (err) { mlx5_ib_dbg(dev, "copy failed\n"); @@ -1426,6 +1432,11 @@ static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, if (ucmd.flags & MLX5_QP_FLAG_TUNNEL_OFFLOADS) MLX5_SET(tirc, tirc, tunneled_offload_en, 1); + if (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_INNER) + hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner); + else + hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); + switch (ucmd.rx_hash_function) { case MLX5_RX_HASH_FUNC_TOEPLITZ: { |