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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | AUTHORS | COLOPHON |
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IBV_OPEN_QP(3) Libibverbs Programmer's Manual IBV_OPEN_QP(3)
ibv_open_qp - open a shareable queue pair (QP)
#include <infiniband/verbs.h>
struct ibv_qp *ibv_open_qp(struct ibv_context *context,
struct ibv_qp_open_attr *qp_open_attr);
ibv_open_qp() opens an existing queue pair (QP) associated with
the extended protection domain xrcd. The argument qp_open_attr
is an ibv_qp_open_attr struct, as defined in
<infiniband/verbs.h>.
struct ibv_qp_open_attr {
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 */
ibv_destroy_qp() closes the opened QP and destroys the underlying
QP if it has no other references. qp.
ibv_open_qp() returns a pointer to the opened QP, or NULL if the
request fails. Check the QP number (qp_num) in the returned QP.
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.
ibv_alloc_pd(3), ibv_create_qp(3), ibv_create_qp_ex(3),
ibv_modify_qp(3), ibv_query_qp(3)
Sean Hefty <[email protected]>
This page is part of the rdma-core (RDMA Core Userspace Libraries
and Daemons) project. Information about the project can be found
at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug
report for this manual page, send it to
[email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2024-06-10.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
libibverbs 2011-08-12 IBV_OPEN_QP(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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