IBV_RESIZE_CQ(3) Libibverbs Programmer's Manual IBV_RESIZE_CQ(3)NAME
ibv_resize_cq - resize a completion queue (CQ)
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_resize_cq(struct ibv_cq *cq, int cqe);
DESCRIPTION
ibv_resize_cq() resizes the completion queue (CQ) cq to have at least cqe entries. cqe must be at least the number of unpolled entries in
the CQ cq. If cqe is a valid value less than the current CQ size, ibv_resize_cq() may not do anything, since this function is only guaran-
teed to resize the CQ to a size at least as big as the requested size.
RETURN VALUE
ibv_resize_cq() returns 0 on success, or the value of errno on failure (which indicates the failure reason).
NOTES
ibv_resize_cq() may assign a CQ size greater than or equal to the requested size. The cqe member of cq will be updated to the actual size.
SEE ALSO ibv_create_cq(3)ibv_destroy_cq(3)AUTHORS
Dotan Barak <dotanba@gmail.com>
libibverbs 2006-10-31 IBV_RESIZE_CQ(3)
Check Out this Related Man Page
IBV_REQ_NOTIFY_CQ(3) Libibverbs Programmer's Manual IBV_REQ_NOTIFY_CQ(3)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 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 gener-
ated 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
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)AUTHORS
Dotan Barak <dotanba@gmail.com>
libibverbs 2006-10-31 IBV_REQ_NOTIFY_CQ(3)
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