NAME

       ibv_req_notify_cq - request completion notification on a completion queue (CQ)

SYNOPSIS

              #include <infiniband/verbs.h>

              int ibv_req_notify_cq(struct ibv_cq *cq, int solicited_only);

DESCRIPTION

       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 chan‐
       nel  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  con‐
       sidered  “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 unsolicited.

RETURN VALUE

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

NOTES

       The request for notification is “one shot.” Only one completion event will be generated for each call  to
       ibv_req_notify_cq().

SEE ALSO

       ibv_create_comp_channel(3), ibv_create_cq(3), ibv_get_cq_event(3)

AUTHOR

       Dotan Barak <dotanba@gmail.com>

libibverbs                                         2006-10-31                               IBV_REQ_NOTIFY_CQ(3)