infiniband/core/verbs.c

1015 	struct ib_srq *srq;
1018 	srq = rdma_zalloc_drv_obj(pd->device, ib_srq);
1019 	if (!srq)
1022 	srq->device = pd->device;
1023 	srq->pd = pd;
1024 	srq->event_handler = srq_init_attr->event_handler;
1025 	srq->srq_context = srq_init_attr->srq_context;
1026 	srq->srq_type = srq_init_attr->srq_type;
1027 	srq->uobject = uobject;
1029 	if (ib_srq_has_cq(srq->srq_type)) {
1030 		srq->ext.cq = srq_init_attr->ext.cq;
1031 		atomic_inc(&srq->ext.cq->usecnt);
1033 	if (srq->srq_type == IB_SRQT_XRC) {
1034 		srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd;
1035 		if (srq->ext.xrc.xrcd)
1036 			atomic_inc(&srq->ext.xrc.xrcd->usecnt);
1040 	rdma_restrack_new(&srq->res, RDMA_RESTRACK_SRQ);
1041 	rdma_restrack_parent_name(&srq->res, &pd->res);
1043 	ret = pd->device->ops.create_srq(srq, srq_init_attr, udata);
1045 		rdma_restrack_put(&srq->res);
1047 		if (srq->srq_type == IB_SRQT_XRC && srq->ext.xrc.xrcd)
1048 			atomic_dec(&srq->ext.xrc.xrcd->usecnt);
1049 		if (ib_srq_has_cq(srq->srq_type))
1050 			atomic_dec(&srq->ext.cq->usecnt);
1051 		kfree(srq);
1055 	rdma_restrack_add(&srq->res);
1057 	return srq;
1061 int ib_modify_srq(struct ib_srq *srq,
1065 	return srq->device->ops.modify_srq ?
1066 		srq->device->ops.modify_srq(srq, srq_attr, srq_attr_mask,
1071 int ib_query_srq(struct ib_srq *srq,
1074 	return srq->device->ops.query_srq ?
1075 		srq->device->ops.query_srq(srq, srq_attr) : -EOPNOTSUPP;
1079 int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata)
1083 	if (atomic_read(&srq->usecnt))
1086 	ret = srq->device->ops.destroy_srq(srq, udata);
1090 	atomic_dec(&srq->pd->usecnt);
1091 	if (srq->srq_type == IB_SRQT_XRC && srq->ext.xrc.xrcd)
1092 		atomic_dec(&srq->ext.xrc.xrcd->usecnt);
1093 	if (ib_srq_has_cq(srq->srq_type))
1094 		atomic_dec(&srq->ext.cq->usecnt);
1095 	rdma_restrack_del(&srq->res);
1096 	kfree(srq);
1181 	qp->srq = NULL;
1223 	qp->srq = attr->srq;
1310 	if (qp->srq)
1311 		atomic_inc(&qp->srq->usecnt);
1321 	if (qp->srq)
1322 		atomic_dec(&qp->srq->usecnt);
2963 	if (!qp->srq)