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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | AUTHOR | COLOPHON |
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IBV_RESIZE_CQ(3) Libibverbs Programmer’s Manual IBV_RESIZE_CQ(3)
ibv_resize_cq - resize a completion queue (CQ)
#include <infiniband/verbs.h>
int ibv_resize_cq(struct ibv_cq *cq, int cqe);
ibv_resize_cq() resizes the completion queue (CQ) cq to have at
least cqe entries. cqe must be at least the number of unpolled
entries in the CQ cq. If cqe is a valid value less than the
current CQ size, ibv_resize_cq() may not do anything, since this
function is only guaranteed to resize the CQ to a size at least as
big as the requested size.
ibv_resize_cq() returns 0 on success, or the value of errno on
failure (which indicates the failure reason).
ibv_resize_cq() may assign a CQ size greater than or equal to the
requested size. The cqe member of cq will be updated to the
actual size.
ibv_create_cq(3), ibv_destroy_cq(3)
Dotan Barak ⟨dotanba@gmail.com⟩
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
linux-rdma@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) 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
man-pages@man7.org
libibverbs 2006-10-31 IBV_RESIZE_CQ(3)
Pages that refer to this page: ibv_create_cq(3), ibv_create_cq_ex(3)
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HTML rendering created 2025-09-06 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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