NAME

       rdma_create_srq - Allocate a shared receive queue.

SYNOPSIS

       #include <rdma/rdma_verbs.h>

       int  rdma_create_srq  (struct  rdma_cm_id *id, struct ibv_pd *pd, struct ibv_srq_init_attr
       *attr);

ARGUMENTS

       id          RDMA identifier.

       pd          Optional protection domain for the SRQ.

       attr        Initial SRQ attributes.

DESCRIPTION

       Allocate a SRQ associated with the specified rdma_cm_id.

RETURN VALUE

       Returns 0 on success, or -1 on error.  If an error occurs, errno will be set  to  indicate
       the failure reason.

NOTES

       The  rdma_cm_id must be bound to a local RDMA device before calling this function, and the
       protection domain, if provided, must be for that same device.  After being allocated,  the
       SRQ will be ready to handle posting of receives.

       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 SRQ attributes are specified by the attr parameter.  The ext.xrc.cq fields in
       the ibv_srq_init_attr is optional.  If a completion queue is not specified for an XRC SRQ,
       then  a  CQ  will  be  allocated  by  the  rdma_cm  for  the SRQ, along with corresponding
       completion 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 SRQ will be returned to the user
       through the attr parameter.  An rdma_cm_id may only be associated with a single SRQ.

SEE ALSO

       rdma_bind_addr(3),    rdma_resolve_addr(3),    rdma_create_ep(3),     rdma_destroy_srq(3),
       ibv_create_srq(3), ibv_create_xsrq(3)