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IB/mlx5: Report that device has udata response in create_ah 

To make mlx5 user driver aware of whether kernel driver returns dmac
in user data response add a new flag that will be returned back to
user-space through alloc_ucontext.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moni Shoua 2016-11-23 08:23:23 +02:00 committed by Doug Ledford
parent c90ea9d8e5
commit 6ad279c5a2
2 changed files with 3 additions and 1 deletions
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3
drivers/infiniband/hw/mlx5/main.c
View File

@ -1117,7 +1117,8 @@ static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev,
resp.response_length += sizeof(resp.cqe_version); resp.response_length += sizeof(resp.cqe_version);
if (field_avail(typeof(resp), cmds_supp_uhw, udata->outlen)) { if (field_avail(typeof(resp), cmds_supp_uhw, udata->outlen)) {
resp.cmds_supp_uhw |= MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE; resp.cmds_supp_uhw |= MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE |
MLX5_USER_CMDS_SUPP_UHW_CREATE_AH;
resp.response_length += sizeof(resp.cmds_supp_uhw); resp.response_length += sizeof(resp.cmds_supp_uhw);
} }

1
include/uapi/rdma/mlx5-abi.h
View File

@ -82,6 +82,7 @@ enum mlx5_ib_alloc_ucontext_resp_mask {
enum mlx5_user_cmds_supp_uhw { enum mlx5_user_cmds_supp_uhw {
MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0, MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0,
MLX5_USER_CMDS_SUPP_UHW_CREATE_AH = 1 << 1,
}; };
struct mlx5_ib_alloc_ucontext_resp { struct mlx5_ib_alloc_ucontext_resp {