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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
struct rdma_id_privateenum rdma_cm_statefunction cma_configfs_initfunction cma_configfs_exit
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
- Detected declarations: `struct rdma_id_private`, `enum rdma_cm_state`, `function cma_configfs_init`, `function cma_configfs_exit`.
- Atlas domain: Driver Families / drivers/infiniband.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.