drivers/net/ethernet/mellanox/mlx5/core/transobj.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlx5/core/transobj.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mellanox/mlx5/core/transobj.c
Extension
.c
Size
13937 bytes
Lines
506
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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

#include <linux/mlx5/driver.h>
#include "mlx5_core.h"
#include <linux/mlx5/transobj.h>

int mlx5_core_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn)
{
	u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {};
	u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {};
	int err;

	MLX5_SET(alloc_transport_domain_in, in, opcode,
		 MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN);

	err = mlx5_cmd_exec_inout(dev, alloc_transport_domain, in, out);
	if (!err)
		*tdn = MLX5_GET(alloc_transport_domain_out, out,
				transport_domain);

	return err;
}
EXPORT_SYMBOL(mlx5_core_alloc_transport_domain);

void mlx5_core_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn)
{
	u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)] = {};

	MLX5_SET(dealloc_transport_domain_in, in, opcode,
		 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
	MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn);
	mlx5_cmd_exec_in(dev, dealloc_transport_domain, in);
}
EXPORT_SYMBOL(mlx5_core_dealloc_transport_domain);

int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *rqn)
{
	u32 out[MLX5_ST_SZ_DW(create_rq_out)] = {};
	int err;

	MLX5_SET(create_rq_in, in, opcode, MLX5_CMD_OP_CREATE_RQ);
	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
	if (!err)
		*rqn = MLX5_GET(create_rq_out, out, rqn);

	return err;
}
EXPORT_SYMBOL(mlx5_core_create_rq);

int mlx5_core_modify_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *in)
{
	MLX5_SET(modify_rq_in, in, rqn, rqn);
	MLX5_SET(modify_rq_in, in, opcode, MLX5_CMD_OP_MODIFY_RQ);

	return mlx5_cmd_exec_in(dev, modify_rq, in);
}
EXPORT_SYMBOL(mlx5_core_modify_rq);

void mlx5_core_destroy_rq(struct mlx5_core_dev *dev, u32 rqn)
{
	u32 in[MLX5_ST_SZ_DW(destroy_rq_in)] = {};

	MLX5_SET(destroy_rq_in, in, opcode, MLX5_CMD_OP_DESTROY_RQ);
	MLX5_SET(destroy_rq_in, in, rqn, rqn);
	mlx5_cmd_exec_in(dev, destroy_rq, in);
}
EXPORT_SYMBOL(mlx5_core_destroy_rq);

int mlx5_core_query_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *out)
{
	u32 in[MLX5_ST_SZ_DW(query_rq_in)] = {};

	MLX5_SET(query_rq_in, in, opcode, MLX5_CMD_OP_QUERY_RQ);
	MLX5_SET(query_rq_in, in, rqn, rqn);

	return mlx5_cmd_exec_inout(dev, query_rq, in, out);
}
EXPORT_SYMBOL(mlx5_core_query_rq);

int mlx5_core_create_sq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *sqn)
{
	u32 out[MLX5_ST_SZ_DW(create_sq_out)] = {};
	int err;

	MLX5_SET(create_sq_in, in, opcode, MLX5_CMD_OP_CREATE_SQ);
	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
	if (!err)
		*sqn = MLX5_GET(create_sq_out, out, sqn);

	return err;
}

Annotation

Implementation Notes