From: Yishai Hadas <yishaih@xxxxxxxxxxxx>
Once an indirection MKEY is created umem valid bit shouldn't be set as
this MKEY doesn't really hold a umem.
Signed-off-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
Reviewed-by: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/devx.c | 38 +++++++++++++++++++++++++++++--
1 file changed, 36 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 8bb711da7ee1..b7ff2138ac2a 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -1011,6 +1011,32 @@ static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
}
}
+static int devx_handle_mkey_create(struct mlx5_ib_dev *dev,
+ struct devx_obj *obj,
+ void *in, int in_len)
+{
+ int min_len = MLX5_BYTE_OFF(create_mkey_in, memory_key_mkey_entry) +
+ MLX5_FLD_SZ_BYTES(create_mkey_in,
+ memory_key_mkey_entry);
+ void *mkc;
+ u8 access_mode;
+
+ if (in_len < min_len)
+ return -EINVAL;
+
+ mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
+
+ access_mode = MLX5_GET(mkc, mkc, access_mode_1_0);
+ access_mode |= MLX5_GET(mkc, mkc, access_mode_4_2) << 2;
+
+ if (access_mode == MLX5_MKC_ACCESS_MODE_KLMS ||
+ access_mode == MLX5_MKC_ACCESS_MODE_KSM)
+ return 0;
+
+ MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1);
+ return 0;
+}
+
static int devx_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why)
{
@@ -1032,6 +1058,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
+ int cmd_in_len = uverbs_attr_get_len(attrs,
+ MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
void *cmd_out;
struct ib_uobject *uobj = uverbs_attr_get_uobject(
attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
@@ -1060,10 +1088,16 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
return -ENOMEM;
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
- devx_set_umem_valid(cmd_in);
+ if (opcode == MLX5_CMD_OP_CREATE_MKEY) {
+ err = devx_handle_mkey_create(dev, obj, cmd_in, cmd_in_len);
+ if (err)
+ goto obj_free;
+ } else {
+ devx_set_umem_valid(cmd_in);
+ }
err = mlx5_cmd_exec(dev->mdev, cmd_in,
- uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN),
+ cmd_in_len,
cmd_out, cmd_out_len);
if (err)
goto obj_free;
--
2.19.1
