drivers/infiniband/core/cma_priv.h

Source file repositories/reference/linux-study-clean/drivers/infiniband/core/cma_priv.h

File Facts

System
Linux kernel
Corpus path
drivers/infiniband/core/cma_priv.h
Extension
.h
Size
4092 bytes
Lines
143
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 rdma_id_private {
	struct rdma_cm_id	id;

	struct rdma_bind_list	*bind_list;
	struct hlist_node	node;
	union {
		struct list_head device_item; /* On cma_device->id_list */
		struct list_head listen_any_item; /* On listen_any_list */
	};
	union {
		/* On rdma_id_private->listen_list */
		struct list_head listen_item;
		struct list_head listen_list;
	};
	struct list_head        id_list_entry;
	struct cma_device	*cma_dev;
	struct list_head	mc_list;

	int			internal_id;
	enum rdma_cm_state	state;
	u8			restricted_node_type;
	spinlock_t		lock;
	struct mutex		qp_mutex;

	struct completion	comp;
	refcount_t refcount;
	struct mutex		handler_mutex;

	int			backlog;
	int			timeout_ms;
	struct ib_sa_query	*query;
	int			query_id;
	union {
		struct ib_cm_id	*ib;
		struct iw_cm_id	*iw;
	} cm_id;

	u32			seq_num;
	u32			qkey;
	u32			qp_num;
	u32			options;
	u8			srq;
	u8			tos;
	u8			tos_set:1;
	u8                      timeout_set:1;
	u8			min_rnr_timer_set:1;
	u8			reuseaddr;
	u8			afonly;
	u8			timeout;
	u8			min_rnr_timer;
	u8 used_resolve_ip;
	enum ib_gid_type	gid_type;

	/*
	 * Internal to RDMA/core, don't use in the drivers
	 */
	struct rdma_restrack_entry     res;
	struct rdma_ucm_ece ece;
};

#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
int cma_configfs_init(void);
void cma_configfs_exit(void);
#else
static inline int cma_configfs_init(void)
{
	return 0;
}

static inline void cma_configfs_exit(void)
{
}
#endif

void cma_dev_get(struct cma_device *dev);
void cma_dev_put(struct cma_device *dev);
typedef bool (*cma_device_filter)(struct ib_device *, void *);
struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
					     void *cookie);
int cma_get_default_gid_type(struct cma_device *dev, u32 port);
int cma_set_default_gid_type(struct cma_device *dev, u32 port,
			     enum ib_gid_type default_gid_type);
int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
			     u8 default_roce_tos);
struct ib_device *cma_get_ib_dev(struct cma_device *dev);

#endif /* _CMA_PRIV_H */

Annotation

Implementation Notes