drivers/net/ethernet/mellanox/mlxsw/resources.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlxsw/resources.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mellanox/mlxsw/resources.h
Extension
.h
Size
5380 bytes
Lines
173
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct mlxsw_res {
	bool valid[__MLXSW_RES_ID_MAX];
	u64 values[__MLXSW_RES_ID_MAX];
};

static inline bool mlxsw_res_valid(struct mlxsw_res *res,
				   enum mlxsw_res_id res_id)
{
	return res->valid[res_id];
}

#define MLXSW_RES_VALID(res, short_res_id)			\
	mlxsw_res_valid(res, MLXSW_RES_ID_##short_res_id)

static inline u64 mlxsw_res_get(struct mlxsw_res *res,
				enum mlxsw_res_id res_id)
{
	if (WARN_ON(!res->valid[res_id]))
		return 0;
	return res->values[res_id];
}

#define MLXSW_RES_GET(res, short_res_id)			\
	mlxsw_res_get(res, MLXSW_RES_ID_##short_res_id)

static inline void mlxsw_res_set(struct mlxsw_res *res,
				 enum mlxsw_res_id res_id, u64 value)
{
	res->valid[res_id] = true;
	res->values[res_id] = value;
}

#define MLXSW_RES_SET(res, short_res_id, value)			\
	mlxsw_res_set(res, MLXSW_RES_ID_##short_res_id, value)

static inline void mlxsw_res_parse(struct mlxsw_res *res, u16 id, u64 value)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(mlxsw_res_ids); i++) {
		if (mlxsw_res_ids[i] == id) {
			mlxsw_res_set(res, i, value);
			return;
		}
	}
}

#endif

Annotation

Implementation Notes