diff options
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 825043512b2d..d4128958908f 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2663,6 +2663,18 @@ struct ib_device_ops { */ int (*get_numa_node)(struct ib_device *dev); + /** + * add_sub_dev - Add a sub IB device + */ + struct ib_device *(*add_sub_dev)(struct ib_device *parent, + enum rdma_nl_dev_type type, + const char *name); + + /** + * del_sub_dev - Delete a sub IB device + */ + void (*del_sub_dev)(struct ib_device *sub_dev); + DECLARE_RDMA_OBJ_SIZE(ib_ah); DECLARE_RDMA_OBJ_SIZE(ib_counters); DECLARE_RDMA_OBJ_SIZE(ib_cq); @@ -2773,6 +2785,15 @@ struct ib_device { char iw_ifname[IFNAMSIZ]; u32 iw_driver_flags; u32 lag_flags; + + /* A parent device has a list of sub-devices */ + struct mutex subdev_lock; + struct list_head subdev_list_head; + + /* A sub device has a type and a parent */ + enum rdma_nl_dev_type type; + struct ib_device *parent; + struct list_head subdev_list; }; static inline void *rdma_zalloc_obj(struct ib_device *dev, size_t size, @@ -4822,4 +4843,26 @@ static inline u16 rdma_get_udp_sport(u32 fl, u32 lqpn, u32 rqpn) const struct ib_port_immutable* ib_port_immutable_read(struct ib_device *dev, unsigned int port); + +/** ib_add_sub_device - Add a sub IB device on an existing one + * + * @parent: The IB device that needs to add a sub device + * @type: The type of the new sub device + * @name: The name of the new sub device + * + * + * Return 0 on success, an error code otherwise + */ +int ib_add_sub_device(struct ib_device *parent, + enum rdma_nl_dev_type type, + const char *name); + + +/** ib_del_sub_device_and_put - Delect an IB sub device while holding a 'get' + * + * @sub: The sub device that is going to be deleted + * + * Return 0 on success, an error code otherwise + */ +int ib_del_sub_device_and_put(struct ib_device *sub); #endif /* IB_VERBS_H */ |