ibv_create_xsrq - create or destroy a shared receive queue (SRQ)
#include struct ibv_srq *ibv_create_xsrq(struct ibv_pd *pd, struct ibv_srq_init_attr *srq_init_attr ); int ibv_destroy_srq(struct ibv_srq *srq);
Libibverbs Programmer's Manual IBV_CREATE_XSRQ(3) NAME ibv_create_xsrq, ibv_destroy_srq - create or destroy a shared receive queue (SRQ) SYNOPSIS #include struct ibv_srq *ibv_create_xsrq(struct ibv_pd *pd, struct ibv_srq_init_attr *srq_init_attr ); int ibv_destroy_srq(struct ibv_srq *srq); DESCRIPTION ibv_create_xsrq() creates a shared receive queue (SRQ) associated with the protection domain pd. The argument srq_init_attr is an ibv_srq_init_attr struct, as defined in . struct ibv_srq_init_attr { void *srq_context; /* Associated context of the SRQ */ struct ibv_srq_attr attr; /* SRQ attributes */ enum ibv_srq_type srq_type; /* Specifies type of SRQ to create */ union { struct { struct ibv_xrcd *xrcd; /* XRC domain associated with an XRC SRQ */ struct ibv_cq *cq; /* completion queue for an XRC SRQ*/ } xrc; /* Extended attributes for IBV_SRQT_XRC type SRQs */ } ext; }; struct ibv_srq_attr { uint32_t max_wr; /* Requested max number of outstanding work requests (WRs) in the SRQ */ uint32_t max_sge; /* Requested max number of scatter elements per WR */ uint32_t srq_limit; /* The limit value of the SRQ (ignored for ibv_create_srq) */ }; The function ibv_create_xsrq() will update the srq_init_attr struct with the original values of the SRQ that was created; the values of max_wr and max_sge will be greater than or equal to the values requested. ibv_destroy_srq() destroys the SRQ srq. RETURN VALUE ibv_create_xsrq() returns a pointer to the created SRQ, or NULL if the request fails. ibv_destroy_srq() returns 0 on success, or the value of errno on fail- ure (which indicates the failure reason). ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-----------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-----------------------+ |Availability | network/open-fabrics | +---------------+-----------------------+ |Stability | Pass-through volatile | +---------------+-----------------------+ NOTES ibv_destroy_srq() fails if any queue pair is still associated with this SRQ. 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/down- loads/ibutils/ibutils-1.5.7-0.2.gbd7e502.tar.gz', 'https://www.openfab- rics.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/lib- sdp-1.1.108-0.15.gd7fdb72.tar.gz', 'https://www.openfabrics.org/down- loads/management/infiniband-diags-1.6.5.tar.gz', 'https://www.openfab- rics.org/downloads/management/libibmad-1.3.12.tar.gz', 'https://www.openfabrics.org/downloads/management/libibu- mad-1.3.10.2.tar.gz', 'https://www.openfabrics.org/downloads/manage- ment/opensm-3.3.19.tar.gz', 'https://www.openfabrics.org/down- loads/perftest/perftest-1.3.0-0.42.gf350d3d.tar.gz', 'https://www.open- fabrics.org/downloads/qperf/qperf-0.4.9.tar.gz', 'https://www.openfab- rics.org/downloads/rdmacm/librdmacm-1.0.21.tar.gz', 'https://www.open- fabrics.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/. SEE ALSO ibv_alloc_pd(3), ibv_create_cq(3), ibv_open_xrcd(3), ibv_modify_srq(3), ibv_query_srq(3) AUTHORS Sean Hefty libibverbs 2011-06-17 IBV_CREATE_XSRQ(3)