rdma_create_qp - Allocate a QP.
#include <rdma/rdma_cma.h> int rdma_create_qp (struct rdma_cm_id *id, struct ibv_pd *pd, struct ibv_qp_init_attr *qp_init_attr);
Librdmacm Programmer's Manual RDMA_CREATE_QP(3) NAME rdma_create_qp - Allocate a QP. SYNOPSIS #include <rdma/rdma_cma.h> int rdma_create_qp (struct rdma_cm_id *id, struct ibv_pd *pd, struct ibv_qp_init_attr *qp_init_attr); ARGUMENTS id RDMA identifier. pd Optional protection domain for the QP. qp_init_attr Initial QP attributes. DESCRIPTION Allocate a QP associated with the specified rdma_cm_id and transition it for sending and receiving. RETURN VALUE Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate 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 The rdma_cm_id must be bound to a local RDMA device before calling this function, and the protection domain must be for that same device. QPs allocated to an rdma_cm_id are automatically transitioned by the librd- macm through their states. After being allocated, the QP will be ready to handle posting of receives. If the QP is unconnected, it will be ready to post sends. If a protection domain is not given - pd parameter is NULL - then the rdma_cm_id will be created using a default protection domain. One default protection domain is allocated per RDMA device. The initial QP attributes are specified by the qp_init_attr parameter. The send_cq and recv_cq fields in the ibv_qp_init_attr are optional. If a send or receive completion queue is not specified, then a CQ will be allocated by the rdma_cm for the QP, along with corresponding com- pletion channels. Completion channels and CQ data created by the rdma_cm are exposed to the user through the rdma_cm_id structure. The actual capabilities and properties of the created QP will be returned to the user through the qp_init_attr parameter. An rdma_cm_id may only be associated with a single QP. 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 rdma_bind_addr(3), rdma_resolve_addr(3), rdma_destroy_qp(3), ibv_cre- ate_qp(3), ibv_modify_qp(3) librdmacm 2007-05-15 RDMA_CREATE_QP(3)