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net/mlx5: Provide simplified command interfaces

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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().

Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
This commit is contained in:
Leon Romanovsky 2020-04-05 20:57:00 +03:00
parent 8f3d9f3542
commit bb7fc86372
1 changed files with 13 additions and 0 deletions
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13
include/linux/mlx5/driver.h
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@ -903,6 +903,19 @@ int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
int out_size);
#define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out) \
({ \
mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out, \
MLX5_ST_SZ_BYTES(ifc_cmd##_out)); \
})
#define mlx5_cmd_exec_in(dev, ifc_cmd, in) \
({ \
u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {}; \
mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out); \
})
int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
void *out, int out_size);
void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);