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-rw-r--r--include/rdma/ib_verbs.h30
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