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-.\" -*- nroff -*-
-.\"
-.TH IBV_OPEN_QP 3 2011-08-12 libibverbs "Libibverbs Programmer's Manual"
-.SH "NAME"
-ibv_open_qp \- open a shareable queue pair (QP)
-.SH "SYNOPSIS"
-.nf
-.B #include <infiniband/verbs.h>
-.sp
-.BI "struct ibv_qp *ibv_open_qp(struct ibv_context " "*context" ,
-.BI " struct ibv_qp_open_attr " "*qp_open_attr" );
-.fi
-.SH "DESCRIPTION"
-.B ibv_open_qp()
-opens an existing queue pair (QP) associated with the extended protection domain
-.I xrcd\fR.
-The argument
-.I qp_open_attr
-is an ibv_qp_open_attr struct, as defined in <infiniband/verbs.h>.
-.PP
-.nf
-struct ibv_qp_open_attr {
-.in +8
-uint32_t comp_mask; /* Identifies valid fields */
-uint32_t qp_num; /* QP number */
-struct *ibv_xrcd; /* XRC domain */
-void *qp_context; /* User defined opaque value */
-enum ibv_qp_type qp_type; /* QP transport service type */
-.fi
-.PP
-.B ibv_destroy_qp()
-closes the opened QP and destroys the underlying QP if it has no
-other references.
-.I qp\fR.
-.SH "RETURN VALUE"
-.B ibv_open_qp()
-returns a pointer to the opened QP, or NULL if the request fails.
-Check the QP number (\fBqp_num\fR) in the returned QP.
-.SH "NOTES"
-.B ibv_open_qp()
-will fail if a it is asked to open a QP that does not exist within
-the xrcd with the specified qp_num and qp_type.
-.SH "SEE ALSO"
-.BR ibv_alloc_pd (3),
-.BR ibv_create_qp (3),
-.BR ibv_create_qp_ex (3),
-.BR ibv_modify_qp (3),
-.BR ibv_query_qp (3)
-.SH "AUTHORS"
-.TP
-Sean Hefty <sean.hefty@intel.com>