diff options
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index dfd9b87b7ffd..8705539bce75 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -605,6 +605,13 @@ struct ib_qp_init_attr { u8 port_num; /* special QP types only */ }; +struct ib_qp_open_attr { + void (*event_handler)(struct ib_event *, void *); + void *qp_context; + u32 qp_num; + enum ib_qp_type qp_type; +}; + enum ib_rnr_timeout { IB_RNR_TIMER_655_36 = 0, IB_RNR_TIMER_000_01 = 1, @@ -932,6 +939,9 @@ struct ib_qp { struct ib_srq *srq; struct ib_xrcd *xrcd; /* XRC TGT QPs only */ struct list_head xrcd_list; + atomic_t usecnt; /* count times opened */ + struct list_head open_list; + struct ib_qp *real_qp; struct ib_uobject *uobject; void (*event_handler)(struct ib_event *, void *); void *qp_context; @@ -1488,15 +1498,23 @@ int ib_query_qp(struct ib_qp *qp, int ib_destroy_qp(struct ib_qp *qp); /** - * ib_release_qp - Release an external reference to a QP. + * ib_open_qp - Obtain a reference to an existing sharable QP. + * @xrcd - XRC domain + * @qp_open_attr: Attributes identifying the QP to open. + * + * Returns a reference to a sharable QP. + */ +struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, + struct ib_qp_open_attr *qp_open_attr); + +/** + * ib_close_qp - Release an external reference to a QP. * @qp: The QP handle to release * - * The specified QP handle is released by the caller. If the QP is - * referenced internally, it is not destroyed until all internal - * references are released. After releasing the qp, the caller - * can no longer access it and all events on the QP are discarded. + * The opened QP handle is released by the caller. The underlying + * shared QP is not destroyed until all internal references are released. */ -int ib_release_qp(struct ib_qp *qp); +int ib_close_qp(struct ib_qp *qp); /** * ib_post_send - Posts a list of work requests to the send queue of |