NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | AUTHORS | COLOPHON

IBV_MODIFY_CQ(3)       Libibverbs Programmer's Manual       IBV_MODIFY_CQ(3)

NAME         top

       ibv_modify_cq - modify a completion queue (CQ)

SYNOPSIS         top

       #include <infiniband/verbs.h>

       int ibv_modify_cq(struct ibv_cq *cq, struct ibv_modify_cq_attr *cq_attr);

DESCRIPTION         top

       ibv_modify_cq() modify a CQ cq.  The argument cq_attr is an
       ibv_modify_cq_attr struct, as defined in <infiniband/verbs.h>.

       struct ibv_moderate_cq {
               uint16_t cq_count;  /* number of completions per event */
               uint16_t cq_period; /* in micro seconds */
       };

       struct ibv_modify_cq_attr {
                    uint32_t attr_mask;
                    struct ibv_moderate_cq moderate;
       };

       The function ibv_modify_cq() will modify the CQ, based on the given
       cq_attr->attr_mask

RETURN VALUE         top

       returns 0 on success, or the value of errno on failure (which
       indicates the failure reason).

SEE ALSO         top

       ibv_create_cq(3)

AUTHORS         top

       Yonatan Cohen <yonatanc@mellanox.com>

COLOPHON         top

       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 2019-11-19.  (At
       that time, the date of the most recent commit that was found in the
       repository was 2019-11-18.)  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                       2017-10-20                 IBV_MODIFY_CQ(3)