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'\" te .\" -*- nroff -*- .\" .TH IBV_CREATE_CQ 3 2006-10-31 libibverbs "Libibverbs Programmer's Manual" .SH "NAME" ibv_create_cq, ibv_destroy_cq \- create or destroy a completion queue (CQ) .SH "SYNOPSIS" .nf .B #include <infiniband/verbs.h> .sp .BI "struct ibv_cq *ibv_create_cq(struct ibv_context " "*context" ", int " "cqe" , .BI " void " "*cq_context" , .BI " struct ibv_comp_channel " "*channel" , .BI " int " "comp_vector" ); .sp .BI "int ibv_destroy_cq(struct ibv_cq " "*cq" ); .fi .SH "DESCRIPTION" .B ibv_create_cq() creates a completion queue (CQ) with at least .I cqe entries for the RDMA device context .I context\fR. The pointer .I cq_context will be used to set user context pointer of the CQ structure. The argument .I channel is optional; if not NULL, the completion channel .I channel will be used to return completion events. The CQ will use the completion vector .I comp_vector for signaling completion events; it must be at least zero and less than .I context\fR->num_comp_vectors. .PP .B ibv_destroy_cq() destroys the CQ .I cq\fR. .SH "RETURN VALUE" .B ibv_create_cq() returns a pointer to the CQ, or NULL if the request fails. .PP .B ibv_destroy_cq() returns 0 on success, or the value of errno on failure (which indicates the failure reason). .\" Oracle has added the ARC stability level to this manual page .SH ATTRIBUTES See .BR attributes (7) for descriptions of the following attributes: .sp .TS box; cbp-1 | cbp-1 l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE = Availability network/open-fabrics = Stability Pass-through volatile .TE .PP .SH "NOTES" .B ibv_create_cq() may create a CQ with size greater than or equal to the requested size. Check the cqe attribute in the returned CQ for the actual size. .PP .B ibv_destroy_cq() fails if any queue pair is still associated with this CQ. .\" Oracle has added source availability information to this manual page Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source-code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from ['https://www.openfabrics.org/downloads/ibutils/ibutils-1.5.7-0.2.gbd7e502.tar.gz', 'https://www.openfabrics.org/downloads/libibverbs/libibverbs-1.1.8.tar.gz', 'https://www.openfabrics.org/downloads/libmlx4/libmlx4-1.0.6.tar.gz', 'https://www.openfabrics.org/downloads/libsdp/libsdp-1.1.108-0.15.gd7fdb72.tar.gz', 'https://www.openfabrics.org/downloads/management/infiniband-diags-1.6.5.tar.gz', 'https://www.openfabrics.org/downloads/management/libibmad-1.3.12.tar.gz', 'https://www.openfabrics.org/downloads/management/libibumad-1.3.10.2.tar.gz', 'https://www.openfabrics.org/downloads/management/opensm-3.3.19.tar.gz', 'https://www.openfabrics.org/downloads/perftest/perftest-1.3.0-0.42.gf350d3d.tar.gz', 'https://www.openfabrics.org/downloads/qperf/qperf-0.4.9.tar.gz', 'https://www.openfabrics.org/downloads/rdmacm/librdmacm-1.0.21.tar.gz', 'https://www.openfabrics.org/downloads/rds-tools/rds-tools-2.0.4.tar.gz']. Further information about this software can be found on the open source community website at http://www.openfabrics.org/. .SH "SEE ALSO" .BR ibv_resize_cq (3), .BR ibv_req_notify_cq (3), .BR ibv_ack_cq_events (3), .BR ibv_create_qp (3) .SH "AUTHORS" .TP Dotan Barak <dotanba@gmail.com>