drivers/infiniband/hw/mlx5/srq.h

Source file repositories/reference/linux-study-clean/drivers/infiniband/hw/mlx5/srq.h

File Facts

System
Linux kernel
Corpus path
drivers/infiniband/hw/mlx5/srq.h
Extension
.h
Size
1581 bytes
Lines
70
Domain
Driver Families
Bucket
drivers/infiniband
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 mlx5_srq_attr {
	u32 type;
	u32 flags;
	u32 log_size;
	u32 wqe_shift;
	u32 log_page_size;
	u32 wqe_cnt;
	u32 srqn;
	u32 xrcd;
	u32 page_offset;
	u32 cqn;
	u32 pd;
	u32 lwm;
	u32 user_index;
	u64 db_record;
	__be64 *pas;
	struct ib_umem *umem;
	u32 tm_log_list_size;
	u32 tm_next_tag;
	u32 tm_hw_phase_cnt;
	u32 tm_sw_phase_cnt;
	u16 uid;
};

struct mlx5_ib_dev;

struct mlx5_core_srq {
	struct mlx5_core_rsc_common common; /* must be first */
	u32 srqn;
	int max;
	size_t max_gs;
	size_t max_avail_gather;
	int wqe_shift;
	void (*event)(struct mlx5_core_srq *srq, enum mlx5_event e);

	u16 uid;
};

struct mlx5_srq_table {
	struct notifier_block nb;
	struct xarray array;
};

int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
			struct mlx5_srq_attr *in);
int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq);
int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
		       struct mlx5_srq_attr *out);
int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
		     u16 lwm, int is_srq);
struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn);

int mlx5_init_srq_table(struct mlx5_ib_dev *dev);
void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev);
#endif /* MLX5_IB_SRQ_H */

Annotation

Implementation Notes