1IBV_REQ_NOTIFY_CQ(3) Libibverbs Programmer's Manual IBV_REQ_NOTIFY_CQ(3)
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6 ibv_req_notify_cq - request completion notification on a completion
7 queue (CQ)
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10 #include <infiniband/verbs.h>
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12 int ibv_req_notify_cq(struct ibv_cq *cq, int solicited_only);
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15 ibv_req_notify_cq() requests a completion notification on the comple‐
16 tion queue (CQ) cq.
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18 Upon the addition of a new CQ entry (CQE) to cq, a completion event
19 will be added to the completion channel associated with the CQ. If the
20 argument solicited_only is zero, a completion event is generated for
21 any new CQE. If solicited_only is non-zero, an event is only generated
22 for a new CQE with that is considered "solicited." A CQE is solicited
23 if it is a receive completion for a message with the Solicited Event
24 header bit set, or if the status is not successful. All other success‐
25 ful receive completions, or any successful send completion is unso‐
26 licited.
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29 ibv_req_notify_cq() returns 0 on success, or the value of errno on
30 failure (which indicates the failure reason).
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33 The request for notification is "one shot." Only one completion event
34 will be generated for each call to ibv_req_notify_cq().
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37 ibv_create_comp_channel(3), ibv_create_cq(3), ibv_get_cq_event(3)
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40 Dotan Barak <dotanb@mellanox.co.il>
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44libibverbs 2006-10-31 IBV_REQ_NOTIFY_CQ(3)