ibv_req_notify_cq - request completion notification on a completion
int ibv_req_notify_cq(struct ibv_cq *cq, int solicited_only);
ibv_req_notify_cq() requests a completion notification on the
completion queue (CQ) cq.
Upon the addition of a new CQ entry (CQE) to cq, a completion event
will be added to the completion channel associated with the CQ. If the
argument solicited_only is zero, a completion event is generated for
any new CQE. If solicited_only is non-zero, an event is only generated
for a new CQE with that is considered "solicited." A CQE is solicited
if it is a receive completion for a message with the Solicited Event
header bit set, or if the status is not successful. All other
successful receive completions, or any successful send completion is
ibv_req_notify_cq() returns 0 on success, or the value of errno on
failure (which indicates the failure reason).
The request for notification is "one shot." Only one completion event
will be generated for each call to ibv_req_notify_cq().
ibv_create_comp_channel(3), ibv_create_cq(3), ibv_get_cq_event(3)
Dotan Barak <email@example.com>