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

NAME
       ibv_modify_cq - modify a completion queue (CQ)

SYNOPSIS
       #include <infiniband/verbs.h>

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


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

SEE ALSO
       ibv_create_cq(3)

AUTHORS
       Yonatan Cohen <yonatanc@mellanox.com>

libibverbs                        2017-10-20                  IBV_MODIFY_CQ(3)