From: Max Gurtovoy Date: Tue, 23 Jul 2019 07:04:12 +0000 (+0300) Subject: IB/mlx5: Add CREATE_PSV/DESTROY_PSV for devx interface X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8b38c538d460f46680d0fb8524efa15a8652b2d1;p=linux.git 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 Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index ec4370f993812..a527cf7f01ac9 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);