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| author | Bodong Wang <bodong@mellanox.com> | 2017-08-17 15:52:34 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-24 17:47:35 -0400 |
| commit | 795b609c8b59f8f20fa9d72bf8b4ae3b8aa5582c (patch) | |
| tree | b7c0580ff6d1acf73e06182ea6a5a6fed3f8a60f /drivers/infiniband | |
| parent | a550ddfc543e250798048cf4eabe721cd85ac724 (diff) | |
| download | op-kernel-dev-795b609c8b59f8f20fa9d72bf8b4ae3b8aa5582c.zip op-kernel-dev-795b609c8b59f8f20fa9d72bf8b4ae3b8aa5582c.tar.gz | |
IB/mlx5: Allow posting multi packet send WQEs if hardware supports
Set the field to allow posting multi packet send WQEs if hardware
supports this feature. This doesn't mean the send WQEs will be for
multi packet unless the send WQE was prepared according to multi
packet send WQE format.
User space shall use flag MLX5_IB_ALLOW_MPW to check if hardware
supports MPW and allows MPW in SQ context.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@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/main.c | 5 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 8f7e460..ba0a97d 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -802,8 +802,9 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes, uhw->outlen)) { - resp.mlx5_ib_support_multi_pkt_send_wqes = - MLX5_CAP_ETH(mdev, multi_pkt_send_wqe); + if (MLX5_CAP_ETH(mdev, multi_pkt_send_wqe)) + resp.mlx5_ib_support_multi_pkt_send_wqes = + MLX5_IB_ALLOW_MPW; resp.response_length += sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes); } diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 6567731..d6df88a 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1083,6 +1083,8 @@ static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev, sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); MLX5_SET(sqc, sqc, flush_in_error_en, 1); + if (MLX5_CAP_ETH(dev->mdev, multi_pkt_send_wqe)) + MLX5_SET(sqc, sqc, allow_multi_pkt_send_wqe, 1); MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); MLX5_SET(sqc, sqc, user_index, MLX5_GET(qpc, qpc, user_index)); MLX5_SET(sqc, sqc, cqn, MLX5_GET(qpc, qpc, cqn_snd)); |
