RDMA_CREATE_SRQ(3) Librdmacm Programmer's Manual RDMA_CREATE_SRQ(3)NAMErdma_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 comple‐
tion 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 chan‐
nels. 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 ALSOrdma_bind_addr(3), rdma_resolve_addr(3), rdma_create_ep(3),
rdma_destroy_srq(3), ibv_create_srq(3), ibv_create_xsrq(3)librdmacm 2011-06-15 RDMA_CREATE_SRQ(3)
