net/mlx5: Provide simplified command interfaces

Many mlx5_cmd_exec() callers are not interested in the output from that command or have standard in/out structures. Those callers simply allocate those structure on the stack and use sizeof() to provide in/out arguments. In this naive approach provide simplified versions of mlx5_cmd_exec().

Leon Romanovsky committed 6 years ago

Commit bb7fc861 parent 8f3d9f31 file · +13 −0Browse files

Unified · Split

include/linux/mlx5/driver.h+13−0

@@ -903,6 +903,19 @@ int mlx5_cmd_exec_cb(struct mlx5_async_ctx ctx, void in, int in_size, · 902 unmodified lines
903	903
904	904	int mlx5_cmd_exec(struct mlx5_core_dev dev, void in, int in_size, void *out,
905	905	int out_size);
	906	+
	907	+#define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out) \
	908	+ ({ \
	909	+ mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out, \
	910	+ MLX5_ST_SZ_BYTES(ifc_cmd##_out)); \
	911	+ })
	912	+
	913	+#define mlx5_cmd_exec_in(dev, ifc_cmd, in) \
	914	+ ({ \
	915	+ u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {}; \
	916	+ mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out); \
	917	+ })
	918	+
906	919	int mlx5_cmd_exec_polling(struct mlx5_core_dev dev, void in, int in_size,
907	920	void *out, int out_size);
908	921	void mlx5_cmd_mbox_status(void out, u8 status, u32 *syndrome);