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| author |   Max Gurtovoy <maxg@mellanox.com> | 2019-07-23 10:04:12 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-07-25 14:24:06 -0300 |
| commit | 8b38c538d460f46680d0fb8524efa15a8652b2d1 (patch) | |
| tree | 2bacc7e021a47da4e696bc1cfa687fbca8960ef9 /drivers/infiniband | |
| parent | RDMA/core: Support netlink commands in non init_net net namespaces (diff) | |
| download | linux-dev-8b38c538d460f46680d0fb8524efa15a8652b2d1.tar.xz linux-dev-8b38c538d460f46680d0fb8524efa15a8652b2d1.zip | |
IB/mlx5: Add CREATE_PSV/DESTROY_PSV for devx interface
Limit the number of PSV's created through devx to 1, to create a symmetry
between create/destroy cmds. In the kernel, one can create up to 4 PSV's
using CREATE_PSV cmd but the destruction is one by one. Add a protection
for this a-symmetric definition for devx.
Link: https://lore.kernel.org/r/20190723070412.6385-1-leon@kernel.org
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/devx.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index ec4370f99381..a527cf7f01ac 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -776,6 +776,14 @@ static bool devx_is_obj_create_cmd(const void *in, u16 *opcode) return true; return false; } + case MLX5_CMD_OP_CREATE_PSV: + { + u8 num_psv = MLX5_GET(create_psv_in, in, num_psv); + + if (num_psv == 1) + return true; + return false; + } default: return false; } @@ -1215,6 +1223,12 @@ static void devx_obj_build_destroy_cmd(void *in, void *out, void *din, case MLX5_CMD_OP_ALLOC_XRCD: MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD); break; + case MLX5_CMD_OP_CREATE_PSV: + MLX5_SET(general_obj_in_cmd_hdr, din, opcode, + MLX5_CMD_OP_DESTROY_PSV); + MLX5_SET(destroy_psv_in, din, psvn, + MLX5_GET(create_psv_out, out, psv0_index)); + break; default: /* The entry must match to one of the devx_is_obj_create_cmd */ WARN_ON(true); |