1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
4  * Copyright (c) 2002-2005, Network Appliance, Inc. All rights reserved.
5  * Copyright (c) 1999-2019, Mellanox Technologies, Inc. All rights reserved.
6  * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
63 	[RDMA_CM_EVENT_DEVICE_REMOVAL]	 = "device removal",
70 static void cma_set_mgid(struct rdma_id_private *id_priv, struct sockaddr *addr,
85 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_reject_msg()
88 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_reject_msg()
97  * rdma_is_consumer_reject - return true if the consumer rejected the connect
104 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_is_consumer_reject()
107 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_is_consumer_reject()
108 		return reason == -ECONNREFUSED;  in rdma_is_consumer_reject()
119 	if (rdma_is_consumer_reject(id, ev->status)) {  in rdma_consumer_reject_data()
120 		*data_len = ev->param.conn.private_data_len;  in rdma_consumer_reject_data()
121 		p = ev->param.conn.private_data;  in rdma_consumer_reject_data()
131  * rdma_iw_cm_id() - return the iw_cm_id pointer for this cm_id.
139 	if (id->device->node_type == RDMA_NODE_RNIC)  in rdma_iw_cm_id()
140 		return id_priv->cm_id.iw;  in rdma_iw_cm_id()
146  * rdma_res_to_id() - return the rdma_cm_id pointer for this restrack.
154 	return &id_priv->id;  in rdma_res_to_id()
158 static int cma_add_one(struct ib_device *device);
159 static void cma_remove_one(struct ib_device *device, void *client_data);
193 		return &pernet->tcp_ps;  in cma_pernet_xa()
195 		return &pernet->udp_ps;  in cma_pernet_xa()
197 		return &pernet->ipoib_ps;  in cma_pernet_xa()
199 		return &pernet->ib_ps;  in cma_pernet_xa()
207 	struct ib_device	*device;  member
251 	refcount_inc(&cma_dev->refcount);  in cma_dev_get()
256 	if (refcount_dec_and_test(&cma_dev->refcount))  in cma_dev_put()
257 		complete(&cma_dev->comp);  in cma_dev_put()
269 		if (filter(cma_dev->device, cookie)) {  in cma_enum_devices_by_ibdev()
283 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_gid_type()
284 		return -EINVAL;  in cma_get_default_gid_type()
286 	return cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)];  in cma_get_default_gid_type()
295 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_gid_type()
296 		return -EINVAL;  in cma_set_default_gid_type()
299 	    rdma_protocol_roce_eth_encap(cma_dev->device, port))  in cma_set_default_gid_type()
302 	supported_gids = roce_gid_type_mask_support(cma_dev->device, port);  in cma_set_default_gid_type()
305 		return -EINVAL;  in cma_set_default_gid_type()
307 	cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_gid_type()
315 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_roce_tos()
316 		return -EINVAL;  in cma_get_default_roce_tos()
318 	return cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)];  in cma_get_default_roce_tos()
324 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_roce_tos()
325 		return -EINVAL;  in cma_set_default_roce_tos()
327 	cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_roce_tos()
334 	return cma_dev->device;  in cma_get_ib_dev()
338  * Device removal can occur at anytime, so we need extra handling to
339  * serialize notifying the user of device removal with other callbacks.
355 	struct sockaddr_storage	addr;  member
371 		__be32 addr;  member
388 	struct ib_device *device;  member
409 		lockdep_assert_held(&id_priv->handler_mutex);  in cma_comp_exch()
411 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_comp_exch()
412 	if ((ret = (id_priv->state == comp)))  in cma_comp_exch()
413 		id_priv->state = exch;  in cma_comp_exch()
414 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_comp_exch()
420 	return hdr->ip_version >> 4;  in cma_get_ip_ver()
425 	hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF);  in cma_set_ip_ver()
438 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
441 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
445 	return (in_dev) ? 0 : -ENODEV;  in cma_igmp_send()
452 	id_priv->cma_dev = cma_dev;  in _cma_attach_to_dev()
453 	id_priv->id.device = cma_dev->device;  in _cma_attach_to_dev()
454 	id_priv->id.route.addr.dev_addr.transport =  in _cma_attach_to_dev()
455 		rdma_node_get_transport(cma_dev->device->node_type);  in _cma_attach_to_dev()
456 	list_add_tail(&id_priv->list, &cma_dev->id_list);  in _cma_attach_to_dev()
458 	trace_cm_id_attach(id_priv, cma_dev->device);  in _cma_attach_to_dev()
465 	id_priv->gid_type =  in cma_attach_to_dev()
466 		cma_dev->default_gid_type[id_priv->id.port_num -  in cma_attach_to_dev()
467 					  rdma_start_port(cma_dev->device)];  in cma_attach_to_dev()
473 	list_del(&id_priv->list);  in cma_release_dev()
474 	cma_dev_put(id_priv->cma_dev);  in cma_release_dev()
475 	id_priv->cma_dev = NULL;  in cma_release_dev()
476 	id_priv->id.device = NULL;  in cma_release_dev()
477 	if (id_priv->id.route.addr.dev_addr.sgid_attr) {  in cma_release_dev()
478 		rdma_put_gid_attr(id_priv->id.route.addr.dev_addr.sgid_attr);  in cma_release_dev()
479 		id_priv->id.route.addr.dev_addr.sgid_attr = NULL;  in cma_release_dev()
486 	return (struct sockaddr *) &id_priv->id.route.addr.src_addr;  in cma_src_addr()
491 	return (struct sockaddr *) &id_priv->id.route.addr.dst_addr;  in cma_dst_addr()
496 	return id_priv->id.route.addr.src_addr.ss_family;  in cma_family()
504 	if (id_priv->qkey) {  in cma_set_qkey()
505 		if (qkey && id_priv->qkey != qkey)  in cma_set_qkey()
506 			return -EINVAL;  in cma_set_qkey()
511 		id_priv->qkey = qkey;  in cma_set_qkey()
515 	switch (id_priv->id.ps) {  in cma_set_qkey()
518 		id_priv->qkey = RDMA_UDP_QKEY;  in cma_set_qkey()
521 		ib_addr_get_mgid(&id_priv->id.route.addr.dev_addr, &rec.mgid);  in cma_set_qkey()
522 		ret = ib_sa_get_mcmember_rec(id_priv->id.device,  in cma_set_qkey()
523 					     id_priv->id.port_num, &rec.mgid,  in cma_set_qkey()
526 			id_priv->qkey = be32_to_cpu(rec.qkey);  in cma_set_qkey()
536 	dev_addr->dev_type = ARPHRD_INFINIBAND;  in cma_translate_ib()
537 	rdma_addr_set_sgid(dev_addr, (union ib_gid *) &sib->sib_addr);  in cma_translate_ib()
538 	ib_addr_set_pkey(dev_addr, ntohs(sib->sib_pkey));  in cma_translate_ib()
541 static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_addr)  in cma_translate_addr()  argument
545 	if (addr->sa_family != AF_IB) {  in cma_translate_addr()
546 		ret = rdma_translate_ip(addr, dev_addr);  in cma_translate_addr()
548 		cma_translate_ib((struct sockaddr_ib *) addr, dev_addr);  in cma_translate_addr()
556 cma_validate_port(struct ib_device *device, u32 port,  in cma_validate_port()  argument
561 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_validate_port()
562 	int bound_if_index = dev_addr->bound_dev_if;  in cma_validate_port()
564 	int dev_type = dev_addr->dev_type;  in cma_validate_port()
567 	if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))  in cma_validate_port()
568 		return ERR_PTR(-ENODEV);  in cma_validate_port()
570 	if ((dev_type == ARPHRD_INFINIBAND) && !rdma_protocol_ib(device, port))  in cma_validate_port()
571 		return ERR_PTR(-ENODEV);  in cma_validate_port()
573 	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))  in cma_validate_port()
574 		return ERR_PTR(-ENODEV);  in cma_validate_port()
576 	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {  in cma_validate_port()
577 		ndev = dev_get_by_index(dev_addr->net, bound_if_index);  in cma_validate_port()
579 			return ERR_PTR(-ENODEV);  in cma_validate_port()
584 	sgid_attr = rdma_find_gid_by_port(device, gid, gid_type, port, ndev);  in cma_validate_port()
593 	WARN_ON(id_priv->id.route.addr.dev_addr.sgid_attr);  in cma_bind_sgid_attr()
594 	id_priv->id.route.addr.dev_addr.sgid_attr = sgid_attr;  in cma_bind_sgid_attr()
598  * cma_acquire_dev_by_src_ip - Acquire cma device, port, gid attribute
600  * @id_priv:	cm_id which should be bound to cma device
602  * cma_acquire_dev_by_src_ip() binds cm id to cma device, port and GID attribute
608 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_acquire_dev_by_src_ip()
613 	int ret = -ENODEV;  in cma_acquire_dev_by_src_ip()
616 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_acquire_dev_by_src_ip()
617 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_acquire_dev_by_src_ip()
618 		return -EINVAL;  in cma_acquire_dev_by_src_ip()
620 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_acquire_dev_by_src_ip()
623 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_acquire_dev_by_src_ip()
628 		rdma_for_each_port (cma_dev->device, port) {  in cma_acquire_dev_by_src_ip()
629 			gidp = rdma_protocol_roce(cma_dev->device, port) ?  in cma_acquire_dev_by_src_ip()
631 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_acquire_dev_by_src_ip()
632 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_acquire_dev_by_src_ip()
635 				id_priv->id.port_num = port;  in cma_acquire_dev_by_src_ip()
649  * cma_ib_acquire_dev - Acquire cma device, port and SGID attribute
650  * @id_priv:		cm id to bind to cma device
654  * cma_ib_acquire_dev() acquires cma device, port and SGID attribute when
655  * rdma device matches for listen_id and incoming request. It also verifies
663 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_acquire_dev()
668 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_ib_acquire_dev()
669 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_ib_acquire_dev()
670 		return -EINVAL;  in cma_ib_acquire_dev()
672 	if (rdma_protocol_roce(req->device, req->port))  in cma_ib_acquire_dev()
673 		rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_ib_acquire_dev()
676 		memcpy(&gid, dev_addr->src_dev_addr +  in cma_ib_acquire_dev()
679 	gid_type = listen_id_priv->cma_dev->default_gid_type[req->port - 1];  in cma_ib_acquire_dev()
680 	sgid_attr = cma_validate_port(req->device, req->port,  in cma_ib_acquire_dev()
685 	id_priv->id.port_num = req->port;  in cma_ib_acquire_dev()
688 	 * of cma_dev->id_list such as cma_netdev_callback() and  in cma_ib_acquire_dev()
692 	cma_attach_to_dev(id_priv, listen_id_priv->cma_dev);  in cma_ib_acquire_dev()
694 	rdma_restrack_add(&id_priv->res);  in cma_ib_acquire_dev()
701 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iw_acquire_dev()
705 	int ret = -ENODEV;  in cma_iw_acquire_dev()
709 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_iw_acquire_dev()
710 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_iw_acquire_dev()
711 		return -EINVAL;  in cma_iw_acquire_dev()
713 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_iw_acquire_dev()
718 	cma_dev = listen_id_priv->cma_dev;  in cma_iw_acquire_dev()
719 	port = listen_id_priv->id.port_num;  in cma_iw_acquire_dev()
720 	gid_type = listen_id_priv->gid_type;  in cma_iw_acquire_dev()
721 	sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
724 		id_priv->id.port_num = port;  in cma_iw_acquire_dev()
731 		rdma_for_each_port (cma_dev->device, port) {  in cma_iw_acquire_dev()
732 			if (listen_id_priv->cma_dev == cma_dev &&  in cma_iw_acquire_dev()
733 			    listen_id_priv->id.port_num == port)  in cma_iw_acquire_dev()
736 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_iw_acquire_dev()
737 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
740 				id_priv->id.port_num = port;  in cma_iw_acquire_dev()
751 		rdma_restrack_add(&id_priv->res);  in cma_iw_acquire_dev()
759  * Select the source IB device and address to reach the destination IB address.
764 	struct sockaddr_ib *addr;  in cma_resolve_ib_dev()  local
772 	addr = (struct sockaddr_ib *) cma_dst_addr(id_priv);  in cma_resolve_ib_dev()
773 	dgid = (union ib_gid *) &addr->sib_addr;  in cma_resolve_ib_dev()
774 	pkey = ntohs(addr->sib_pkey);  in cma_resolve_ib_dev()
778 		rdma_for_each_port (cur_dev->device, p) {  in cma_resolve_ib_dev()
779 			if (!rdma_cap_af_ib(cur_dev->device, p))  in cma_resolve_ib_dev()
782 			if (ib_find_cached_pkey(cur_dev->device, p, pkey, &index))  in cma_resolve_ib_dev()
785 			if (ib_get_cached_port_state(cur_dev->device, p, &port_state))  in cma_resolve_ib_dev()
787 			for (i = 0; !rdma_query_gid(cur_dev->device,  in cma_resolve_ib_dev()
793 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
798 				    dgid->global.subnet_prefix) &&  in cma_resolve_ib_dev()
802 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
809 	return -ENODEV;  in cma_resolve_ib_dev()
813 	rdma_restrack_add(&id_priv->res);  in cma_resolve_ib_dev()
815 	addr = (struct sockaddr_ib *)cma_src_addr(id_priv);  in cma_resolve_ib_dev()
816 	memcpy(&addr->sib_addr, &sgid, sizeof(sgid));  in cma_resolve_ib_dev()
817 	cma_translate_ib(addr, &id_priv->id.route.addr.dev_addr);  in cma_resolve_ib_dev()
823 	refcount_inc(&id_priv->refcount);  in cma_id_get()
828 	if (refcount_dec_and_test(&id_priv->refcount))  in cma_id_put()
829 		complete(&id_priv->comp);  in cma_id_put()
841 		return ERR_PTR(-ENOMEM);  in __rdma_create_id()
843 	id_priv->state = RDMA_CM_IDLE;  in __rdma_create_id()
844 	id_priv->id.context = context;  in __rdma_create_id()
845 	id_priv->id.event_handler = event_handler;  in __rdma_create_id()
846 	id_priv->id.ps = ps;  in __rdma_create_id()
847 	id_priv->id.qp_type = qp_type;  in __rdma_create_id()
848 	id_priv->tos_set = false;  in __rdma_create_id()
849 	id_priv->timeout_set = false;  in __rdma_create_id()
850 	id_priv->min_rnr_timer_set = false;  in __rdma_create_id()
851 	id_priv->gid_type = IB_GID_TYPE_IB;  in __rdma_create_id()
852 	spin_lock_init(&id_priv->lock);  in __rdma_create_id()
853 	mutex_init(&id_priv->qp_mutex);  in __rdma_create_id()
854 	init_completion(&id_priv->comp);  in __rdma_create_id()
855 	refcount_set(&id_priv->refcount, 1);  in __rdma_create_id()
856 	mutex_init(&id_priv->handler_mutex);  in __rdma_create_id()
857 	INIT_LIST_HEAD(&id_priv->listen_list);  in __rdma_create_id()
858 	INIT_LIST_HEAD(&id_priv->mc_list);  in __rdma_create_id()
859 	get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);  in __rdma_create_id()
860 	id_priv->id.route.addr.dev_addr.net = get_net(net);  in __rdma_create_id()
861 	id_priv->seq_num &= 0x00ffffff;  in __rdma_create_id()
863 	rdma_restrack_new(&id_priv->res, RDMA_RESTRACK_CM_ID);  in __rdma_create_id()
865 		rdma_restrack_parent_name(&id_priv->res, &parent->res);  in __rdma_create_id()
881 	rdma_restrack_set_name(&ret->res, caller);  in __rdma_create_kernel_id()
882 	return &ret->id;  in __rdma_create_kernel_id()
893 	ret = __rdma_create_id(current->nsproxy->net_ns, event_handler, context,  in rdma_create_user_id()
898 	rdma_restrack_set_name(&ret->res, NULL);  in rdma_create_user_id()
899 	return &ret->id;  in rdma_create_user_id()
909 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_ud_qp()
935 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_conn_qp()
950 	if (id->device != pd->device) {  in rdma_create_qp()
951 		ret = -EINVAL;  in rdma_create_qp()
955 	qp_init_attr->port_num = id->port_num;  in rdma_create_qp()
962 	if (id->qp_type == IB_QPT_UD)  in rdma_create_qp()
969 	id->qp = qp;  in rdma_create_qp()
970 	id_priv->qp_num = qp->qp_num;  in rdma_create_qp()
971 	id_priv->srq = (qp->srq != NULL);  in rdma_create_qp()
988 	mutex_lock(&id_priv->qp_mutex);  in rdma_destroy_qp()
989 	ib_destroy_qp(id_priv->id.qp);  in rdma_destroy_qp()
990 	id_priv->id.qp = NULL;  in rdma_destroy_qp()
991 	mutex_unlock(&id_priv->qp_mutex);  in rdma_destroy_qp()
1001 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
1002 	if (!id_priv->id.qp) {  in cma_modify_qp_rtr()
1009 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1013 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1018 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1022 	BUG_ON(id_priv->cma_dev->device != id_priv->id.device);  in cma_modify_qp_rtr()
1025 		qp_attr.max_dest_rd_atomic = conn_param->responder_resources;  in cma_modify_qp_rtr()
1026 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1028 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
1038 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1039 	if (!id_priv->id.qp) {  in cma_modify_qp_rts()
1045 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rts()
1050 		qp_attr.max_rd_atomic = conn_param->initiator_depth;  in cma_modify_qp_rts()
1051 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rts()
1053 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1062 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1063 	if (!id_priv->id.qp) {  in cma_modify_qp_err()
1069 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, IB_QP_STATE);  in cma_modify_qp_err()
1071 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1078 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_init_qp_attr()
1082 	if (rdma_cap_eth_ah(id_priv->id.device, id_priv->id.port_num))  in cma_ib_init_qp_attr()
1087 	ret = ib_find_cached_pkey(id_priv->id.device, id_priv->id.port_num,  in cma_ib_init_qp_attr()
1088 				  pkey, &qp_attr->pkey_index);  in cma_ib_init_qp_attr()
1092 	qp_attr->port_num = id_priv->id.port_num;  in cma_ib_init_qp_attr()
1095 	if (id_priv->id.qp_type == IB_QPT_UD) {  in cma_ib_init_qp_attr()
1100 		qp_attr->qkey = id_priv->qkey;  in cma_ib_init_qp_attr()
1103 		qp_attr->qp_access_flags = 0;  in cma_ib_init_qp_attr()
1116 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1117 		if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))  in rdma_init_qp_attr()
1120 			ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,  in rdma_init_qp_attr()
1123 		if (qp_attr->qp_state == IB_QPS_RTR)  in rdma_init_qp_attr()
1124 			qp_attr->rq_psn = id_priv->seq_num;  in rdma_init_qp_attr()
1125 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1126 		if (!id_priv->cm_id.iw) {  in rdma_init_qp_attr()
1127 			qp_attr->qp_access_flags = 0;  in rdma_init_qp_attr()
1130 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,  in rdma_init_qp_attr()
1132 		qp_attr->port_num = id_priv->id.port_num;  in rdma_init_qp_attr()
1135 		ret = -ENOSYS;  in rdma_init_qp_attr()
1138 	if ((*qp_attr_mask & IB_QP_TIMEOUT) && id_priv->timeout_set)  in rdma_init_qp_attr()
1139 		qp_attr->timeout = id_priv->timeout;  in rdma_init_qp_attr()
1141 	if ((*qp_attr_mask & IB_QP_MIN_RNR_TIMER) && id_priv->min_rnr_timer_set)  in rdma_init_qp_attr()
1142 		qp_attr->min_rnr_timer = id_priv->min_rnr_timer;  in rdma_init_qp_attr()
1148 static inline bool cma_zero_addr(const struct sockaddr *addr)  in cma_zero_addr()  argument
1150 	switch (addr->sa_family) {  in cma_zero_addr()
1152 		return ipv4_is_zeronet(((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_zero_addr()
1154 		return ipv6_addr_any(&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_zero_addr()
1156 		return ib_addr_any(&((struct sockaddr_ib *)addr)->sib_addr);  in cma_zero_addr()
1162 static inline bool cma_loopback_addr(const struct sockaddr *addr)  in cma_loopback_addr()  argument
1164 	switch (addr->sa_family) {  in cma_loopback_addr()
1167 			((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_loopback_addr()
1170 			&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_loopback_addr()
1173 			&((struct sockaddr_ib *)addr)->sib_addr);  in cma_loopback_addr()
1179 static inline bool cma_any_addr(const struct sockaddr *addr)  in cma_any_addr()  argument
1181 	return cma_zero_addr(addr) || cma_loopback_addr(addr);  in cma_any_addr()
1186 	if (src->sa_family != dst->sa_family)  in cma_addr_cmp()
1187 		return -1;  in cma_addr_cmp()
1189 	switch (src->sa_family) {  in cma_addr_cmp()
1191 		return ((struct sockaddr_in *)src)->sin_addr.s_addr !=  in cma_addr_cmp()
1192 		       ((struct sockaddr_in *)dst)->sin_addr.s_addr;  in cma_addr_cmp()
1198 		if (ipv6_addr_cmp(&src_addr6->sin6_addr,  in cma_addr_cmp()
1199 					  &dst_addr6->sin6_addr))  in cma_addr_cmp()
1201 		link_local = ipv6_addr_type(&dst_addr6->sin6_addr) &  in cma_addr_cmp()
1204 		return link_local ? (src_addr6->sin6_scope_id !=  in cma_addr_cmp()
1205 				     dst_addr6->sin6_scope_id) :  in cma_addr_cmp()
1210 		return ib_addr_cmp(&((struct sockaddr_ib *) src)->sib_addr,  in cma_addr_cmp()
1211 				   &((struct sockaddr_ib *) dst)->sib_addr);  in cma_addr_cmp()
1215 static __be16 cma_port(const struct sockaddr *addr)  in cma_port()  argument
1219 	switch (addr->sa_family) {  in cma_port()
1221 		return ((struct sockaddr_in *) addr)->sin_port;  in cma_port()
1223 		return ((struct sockaddr_in6 *) addr)->sin6_port;  in cma_port()
1225 		sib = (struct sockaddr_ib *) addr;  in cma_port()
1226 		return htons((u16) (be64_to_cpu(sib->sib_sid) &  in cma_port()
1227 				    be64_to_cpu(sib->sib_sid_mask)));  in cma_port()
1233 static inline int cma_any_port(const struct sockaddr *addr)  in cma_any_port()  argument
1235 	return !cma_port(addr);  in cma_any_port()
1245 	listen_ib = (struct sockaddr_ib *) &listen_id->route.addr.src_addr;  in cma_save_ib_info()
1248 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1250 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1251 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1252 			memcpy(&ib->sib_addr, &path->sgid, 16);  in cma_save_ib_info()
1253 			ib->sib_sid = path->service_id;  in cma_save_ib_info()
1254 			ib->sib_scope_id = 0;  in cma_save_ib_info()
1256 			ib->sib_pkey = listen_ib->sib_pkey;  in cma_save_ib_info()
1257 			ib->sib_flowinfo = listen_ib->sib_flowinfo;  in cma_save_ib_info()
1258 			ib->sib_addr = listen_ib->sib_addr;  in cma_save_ib_info()
1259 			ib->sib_sid = listen_ib->sib_sid;  in cma_save_ib_info()
1260 			ib->sib_scope_id = listen_ib->sib_scope_id;  in cma_save_ib_info()
1262 		ib->sib_sid_mask = cpu_to_be64(0xffffffffffffffffULL);  in cma_save_ib_info()
1266 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1268 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1269 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1270 			memcpy(&ib->sib_addr, &path->dgid, 16);  in cma_save_ib_info()
1283 			.sin_addr.s_addr = hdr->dst_addr.ip4.addr,  in cma_save_ip4_info()
1291 			.sin_addr.s_addr = hdr->src_addr.ip4.addr,  in cma_save_ip4_info()
1292 			.sin_port = hdr->port,  in cma_save_ip4_info()
1305 			.sin6_addr = hdr->dst_addr.ip6,  in cma_save_ip6_info()
1313 			.sin6_addr = hdr->src_addr.ip6,  in cma_save_ip6_info()
1314 			.sin6_port = hdr->port,  in cma_save_ip6_info()
1332 	hdr = ib_event->private_data;  in cma_save_ip_info()
1333 	if (hdr->cma_version != CMA_VERSION)  in cma_save_ip_info()
1334 		return -EINVAL;  in cma_save_ip_info()
1348 		return -EAFNOSUPPORT;  in cma_save_ip_info()
1361 		if (ib_event->event == IB_CM_REQ_RECEIVED)  in cma_save_net_info()
1363 					 ib_event->param.req_rcvd.primary_path);  in cma_save_net_info()
1364 		else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in cma_save_net_info()
1376 		&ib_event->param.req_rcvd;  in cma_save_req_info()
1378 		&ib_event->param.sidr_req_rcvd;  in cma_save_req_info()
1380 	switch (ib_event->event) {  in cma_save_req_info()
1382 		req->device	= req_param->listen_id->device;  in cma_save_req_info()
1383 		req->port	= req_param->port;  in cma_save_req_info()
1384 		memcpy(&req->local_gid, &req_param->primary_path->sgid,  in cma_save_req_info()
1385 		       sizeof(req->local_gid));  in cma_save_req_info()
1386 		req->has_gid	= true;  in cma_save_req_info()
1387 		req->service_id = req_param->primary_path->service_id;  in cma_save_req_info()
1388 		req->pkey	= be16_to_cpu(req_param->primary_path->pkey);  in cma_save_req_info()
1389 		if (req->pkey != req_param->bth_pkey)  in cma_save_req_info()
1392 					    req_param->bth_pkey, req->pkey);  in cma_save_req_info()
1395 		req->device	= sidr_param->listen_id->device;  in cma_save_req_info()
1396 		req->port	= sidr_param->port;  in cma_save_req_info()
1397 		req->has_gid	= false;  in cma_save_req_info()
1398 		req->service_id	= sidr_param->service_id;  in cma_save_req_info()
1399 		req->pkey	= sidr_param->pkey;  in cma_save_req_info()
1400 		if (req->pkey != sidr_param->bth_pkey)  in cma_save_req_info()
1403 					    sidr_param->bth_pkey, req->pkey);  in cma_save_req_info()
1406 		return -EINVAL;  in cma_save_req_info()
1416 	__be32 daddr = dst_addr->sin_addr.s_addr,  in validate_ipv4_net_dev()
1417 	       saddr = src_addr->sin_addr.s_addr;  in validate_ipv4_net_dev()
1430 	fl4.flowi4_iif = net_dev->ifindex;  in validate_ipv4_net_dev()
1447 	const int strict = ipv6_addr_type(&dst_addr->sin6_addr) &  in validate_ipv6_net_dev()
1449 	struct rt6_info *rt = rt6_lookup(dev_net(net_dev), &dst_addr->sin6_addr,  in validate_ipv6_net_dev()
1450 					 &src_addr->sin6_addr, net_dev->ifindex,  in validate_ipv6_net_dev()
1457 	ret = rt->rt6i_idev->dev == net_dev;  in validate_ipv6_net_dev()
1475 	switch (daddr->sa_family) {  in validate_net_dev()
1477 		return saddr->sa_family == AF_INET &&  in validate_net_dev()
1481 		return saddr->sa_family == AF_INET6 &&  in validate_net_dev()
1495 	if (ib_event->event == IB_CM_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1496 		sgid_attr = ib_event->param.req_rcvd.ppath_sgid_attr;  in roce_get_net_dev_by_cm_event()
1497 	else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1498 		sgid_attr = ib_event->param.sidr_req_rcvd.sgid_attr;  in roce_get_net_dev_by_cm_event()
1517 			(struct sockaddr *)&req->listen_addr_storage;  in cma_get_net_dev()
1518 	struct sockaddr *src_addr = (struct sockaddr *)&req->src_addr_storage;  in cma_get_net_dev()
1520 	const union ib_gid *gid = req->has_gid ? &req->local_gid : NULL;  in cma_get_net_dev()
1524 			       req->service_id);  in cma_get_net_dev()
1528 	if (rdma_protocol_roce(req->device, req->port))  in cma_get_net_dev()
1531 		net_dev = ib_get_net_dev_by_params(req->device, req->port,  in cma_get_net_dev()
1532 						   req->pkey,  in cma_get_net_dev()
1535 		return ERR_PTR(-ENODEV);  in cma_get_net_dev()
1548 	struct sockaddr *addr = cma_src_addr(id_priv);  in cma_match_private_data()  local
1552 	if (cma_any_addr(addr) && !id_priv->afonly)  in cma_match_private_data()
1555 	switch (addr->sa_family) {  in cma_match_private_data()
1557 		ip4_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr;  in cma_match_private_data()
1560 		if (!cma_any_addr(addr) &&  in cma_match_private_data()
1561 		    hdr->dst_addr.ip4.addr != ip4_addr)  in cma_match_private_data()
1565 		ip6_addr = ((struct sockaddr_in6 *)addr)->sin6_addr;  in cma_match_private_data()
1568 		if (!cma_any_addr(addr) &&  in cma_match_private_data()
1569 		    memcmp(&hdr->dst_addr.ip6, &ip6_addr, sizeof(ip6_addr)))  in cma_match_private_data()
1583 	struct ib_device *device = id->device;  in cma_protocol_roce()  local
1584 	const u32 port_num = id->port_num ?: rdma_start_port(device);  in cma_protocol_roce()
1586 	return rdma_protocol_roce(device, port_num);  in cma_protocol_roce()
1592 			(const struct sockaddr *)&req->listen_addr_storage;  in cma_is_req_ipv6_ll()
1596 	return (daddr->sa_family == AF_INET6 &&  in cma_is_req_ipv6_ll()
1597 		(ipv6_addr_type(&daddr6->sin6_addr) & IPV6_ADDR_LINKLOCAL));  in cma_is_req_ipv6_ll()
1604 	const struct rdma_addr *addr = &id->route.addr;  in cma_match_net_dev()  local
1608 		return (!id->port_num || id->port_num == req->port) &&  in cma_match_net_dev()
1609 		       (addr->src_addr.ss_family == AF_IB);  in cma_match_net_dev()
1613 	 * request to any netdevice of the one or multiport rdma device.  in cma_match_net_dev()
1621 	if (net_eq(dev_net(net_dev), addr->dev_addr.net) &&  in cma_match_net_dev()
1622 	    (!!addr->dev_addr.bound_dev_if ==  in cma_match_net_dev()
1623 	     (addr->dev_addr.bound_dev_if == net_dev->ifindex)))  in cma_match_net_dev()
1641 		return ERR_PTR(-EINVAL);  in cma_find_listener()
1643 	hlist_for_each_entry(id_priv, &bind_list->owners, node) {  in cma_find_listener()
1644 		if (cma_match_private_data(id_priv, ib_event->private_data)) {  in cma_find_listener()
1645 			if (id_priv->id.device == cm_id->device &&  in cma_find_listener()
1646 			    cma_match_net_dev(&id_priv->id, net_dev, req))  in cma_find_listener()
1649 					    &id_priv->listen_list,  in cma_find_listener()
1651 				if (id_priv_dev->id.device == cm_id->device &&  in cma_find_listener()
1652 				    cma_match_net_dev(&id_priv_dev->id,  in cma_find_listener()
1659 	return ERR_PTR(-EINVAL);  in cma_find_listener()
1678 		if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) {  in cma_ib_id_from_event()
1695 	 * If the device state is not IFF_UP, its properties such as ifindex  in cma_ib_id_from_event()
1698 	 * ongoing operations on net device after device is closed using  in cma_ib_id_from_event()
1709 		if (((*net_dev)->flags & IFF_UP) == 0) {  in cma_ib_id_from_event()
1710 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1715 				 (struct sockaddr *)&req->listen_addr_storage,  in cma_ib_id_from_event()
1716 				 (struct sockaddr *)&req->src_addr_storage)) {  in cma_ib_id_from_event()
1717 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1723 				rdma_ps_from_service_id(req->service_id),  in cma_ib_id_from_event()
1724 				cma_port_from_service_id(req->service_id));  in cma_ib_id_from_event()
1743 	if (rdma_cap_ib_sa(id_priv->id.device, id_priv->id.port_num)) {  in cma_cancel_route()
1744 		if (id_priv->query)  in cma_cancel_route()
1745 			ib_sa_cancel_query(id_priv->query_id, id_priv->query);  in cma_cancel_route()
1759 	list_del(&id_priv->list);  in _cma_cancel_listens()
1761 	while (!list_empty(&id_priv->listen_list)) {  in _cma_cancel_listens()
1762 		dev_id_priv = list_entry(id_priv->listen_list.next,  in _cma_cancel_listens()
1764 		/* sync with device removal to avoid duplicate destruction */  in _cma_cancel_listens()
1765 		list_del_init(&dev_id_priv->list);  in _cma_cancel_listens()
1766 		list_del(&dev_id_priv->listen_list);  in _cma_cancel_listens()
1769 		rdma_destroy_id(&dev_id_priv->id);  in _cma_cancel_listens()
1794 		rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);  in cma_cancel_operation()
1800 		if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)  in cma_cancel_operation()
1810 	struct rdma_bind_list *bind_list = id_priv->bind_list;  in cma_release_port()
1811 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_release_port()
1817 	hlist_del(&id_priv->node);  in cma_release_port()
1818 	if (hlist_empty(&bind_list->owners)) {  in cma_release_port()
1819 		cma_ps_remove(net, bind_list->ps, bind_list->port);  in cma_release_port()
1828 	bool send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);  in destroy_mc()
1830 	if (rdma_cap_ib_mcast(id_priv->id.device, id_priv->id.port_num))  in destroy_mc()
1831 		ib_sa_free_multicast(mc->sa_mc);  in destroy_mc()
1833 	if (rdma_protocol_roce(id_priv->id.device, id_priv->id.port_num)) {  in destroy_mc()
1835 			&id_priv->id.route.addr.dev_addr;  in destroy_mc()
1838 		if (dev_addr->bound_dev_if)  in destroy_mc()
1839 			ndev = dev_get_by_index(dev_addr->net,  in destroy_mc()
1840 						dev_addr->bound_dev_if);  in destroy_mc()
1844 			cma_set_mgid(id_priv, (struct sockaddr *)&mc->addr,  in destroy_mc()
1853 		cancel_work_sync(&mc->iboe_join.work);  in destroy_mc()
1862 	while (!list_empty(&id_priv->mc_list)) {  in cma_leave_mc_groups()
1863 		mc = list_first_entry(&id_priv->mc_list, struct cma_multicast,  in cma_leave_mc_groups()
1865 		list_del(&mc->list);  in cma_leave_mc_groups()
1875 	rdma_restrack_del(&id_priv->res);  in _destroy_id()
1876 	if (id_priv->cma_dev) {  in _destroy_id()
1877 		if (rdma_cap_ib_cm(id_priv->id.device, 1)) {  in _destroy_id()
1878 			if (id_priv->cm_id.ib)  in _destroy_id()
1879 				ib_destroy_cm_id(id_priv->cm_id.ib);  in _destroy_id()
1880 		} else if (rdma_cap_iw_cm(id_priv->id.device, 1)) {  in _destroy_id()
1881 			if (id_priv->cm_id.iw)  in _destroy_id()
1882 				iw_destroy_cm_id(id_priv->cm_id.iw);  in _destroy_id()
1890 	wait_for_completion(&id_priv->comp);  in _destroy_id()
1892 	if (id_priv->internal_id)  in _destroy_id()
1893 		cma_id_put(id_priv->id.context);  in _destroy_id()
1895 	kfree(id_priv->id.route.path_rec);  in _destroy_id()
1897 	put_net(id_priv->id.route.addr.dev_addr.net);  in _destroy_id()
1906 	__releases(&idprv->handler_mutex)  in destroy_id_handler_unlock()
1919 	lockdep_assert_held(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
1920 	spin_lock_irqsave(&id_priv->lock, flags);  in destroy_id_handler_unlock()
1921 	state = id_priv->state;  in destroy_id_handler_unlock()
1922 	id_priv->state = RDMA_CM_DESTROYING;  in destroy_id_handler_unlock()
1923 	spin_unlock_irqrestore(&id_priv->lock, flags);  in destroy_id_handler_unlock()
1924 	mutex_unlock(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
1933 	mutex_lock(&id_priv->handler_mutex);  in rdma_destroy_id()
1951 	ret = ib_send_cm_rtu(id_priv->cm_id.ib, NULL, 0);  in cma_rep_recv()
1960 	ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,  in cma_rep_recv()
1969 	event->param.conn.private_data = private_data;  in cma_set_rep_event_data()
1970 	event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;  in cma_set_rep_event_data()
1971 	event->param.conn.responder_resources = rep_data->responder_resources;  in cma_set_rep_event_data()
1972 	event->param.conn.initiator_depth = rep_data->initiator_depth;  in cma_set_rep_event_data()
1973 	event->param.conn.flow_control = rep_data->flow_control;  in cma_set_rep_event_data()
1974 	event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;  in cma_set_rep_event_data()
1975 	event->param.conn.srq = rep_data->srq;  in cma_set_rep_event_data()
1976 	event->param.conn.qp_num = rep_data->remote_qpn;  in cma_set_rep_event_data()
1978 	event->ece.vendor_id = rep_data->ece.vendor_id;  in cma_set_rep_event_data()
1979 	event->ece.attr_mod = rep_data->ece.attr_mod;  in cma_set_rep_event_data()
1987 	lockdep_assert_held(&id_priv->handler_mutex);  in cma_cm_event_handler()
1990 	ret = id_priv->id.event_handler(&id_priv->id, event);  in cma_cm_event_handler()
1998 	struct rdma_id_private *id_priv = cm_id->context;  in cma_ib_handler()
2003 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_handler()
2004 	state = READ_ONCE(id_priv->state);  in cma_ib_handler()
2005 	if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
2007 	    (ib_event->event == IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
2011 	switch (ib_event->event) {  in cma_ib_handler()
2015 		event.status = -ETIMEDOUT;  in cma_ib_handler()
2019 		    (id_priv->id.qp_type != IB_QPT_UD)) {  in cma_ib_handler()
2023 		if (id_priv->id.qp) {  in cma_ib_handler()
2030 		cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,  in cma_ib_handler()
2031 				       ib_event->private_data);  in cma_ib_handler()
2038 		event.status = -ETIMEDOUT;  in cma_ib_handler()
2054 		pr_debug_ratelimited("RDMA CM: REJECTED: %s\n", rdma_reject_msg(&id_priv->id,  in cma_ib_handler()
2055 										ib_event->param.rej_rcvd.reason));  in cma_ib_handler()
2057 		event.status = ib_event->param.rej_rcvd.reason;  in cma_ib_handler()
2059 		event.param.conn.private_data = ib_event->private_data;  in cma_ib_handler()
2064 		       ib_event->event);  in cma_ib_handler()
2070 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_handler()
2071 		id_priv->cm_id.ib = NULL;  in cma_ib_handler()
2076 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_handler()
2089 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_conn_id()
2090 	struct sa_path_rec *path = ib_event->param.req_rcvd.primary_path;  in cma_ib_new_conn_id()
2092 		ib_event->param.req_rcvd.primary_path->service_id;  in cma_ib_new_conn_id()
2096 	id_priv = __rdma_create_id(listen_id->route.addr.dev_addr.net,  in cma_ib_new_conn_id()
2097 				   listen_id->event_handler, listen_id->context,  in cma_ib_new_conn_id()
2098 				   listen_id->ps,  in cma_ib_new_conn_id()
2099 				   ib_event->param.req_rcvd.qp_type,  in cma_ib_new_conn_id()
2104 	id = &id_priv->id;  in cma_ib_new_conn_id()
2105 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_conn_id()
2106 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_conn_id()
2110 	rt = &id->route;  in cma_ib_new_conn_id()
2111 	rt->num_paths = ib_event->param.req_rcvd.alternate_path ? 2 : 1;  in cma_ib_new_conn_id()
2112 	rt->path_rec = kmalloc_array(rt->num_paths, sizeof(*rt->path_rec),  in cma_ib_new_conn_id()
2114 	if (!rt->path_rec)  in cma_ib_new_conn_id()
2117 	rt->path_rec[0] = *path;  in cma_ib_new_conn_id()
2118 	if (rt->num_paths == 2)  in cma_ib_new_conn_id()
2119 		rt->path_rec[1] = *ib_event->param.req_rcvd.alternate_path;  in cma_ib_new_conn_id()
2122 		rdma_copy_src_l2_addr(&rt->addr.dev_addr, net_dev);  in cma_ib_new_conn_id()
2126 			rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;  in cma_ib_new_conn_id()
2127 			rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);  in cma_ib_new_conn_id()
2128 			ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));  in cma_ib_new_conn_id()
2130 			ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr);  in cma_ib_new_conn_id()
2135 	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);  in cma_ib_new_conn_id()
2137 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_conn_id()
2153 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_udp_id()
2154 	struct net *net = listen_id->route.addr.dev_addr.net;  in cma_ib_new_udp_id()
2158 	id_priv = __rdma_create_id(net, listen_id->event_handler,  in cma_ib_new_udp_id()
2159 				   listen_id->context, listen_id->ps, IB_QPT_UD,  in cma_ib_new_udp_id()
2164 	id = &id_priv->id;  in cma_ib_new_udp_id()
2165 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_udp_id()
2166 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_udp_id()
2168 			      ib_event->param.sidr_req_rcvd.service_id))  in cma_ib_new_udp_id()
2172 		rdma_copy_src_l2_addr(&id->route.addr.dev_addr, net_dev);  in cma_ib_new_udp_id()
2176 						 &id->route.addr.dev_addr);  in cma_ib_new_udp_id()
2182 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_udp_id()
2193 	event->param.conn.private_data = private_data + offset;  in cma_set_req_event_data()
2194 	event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;  in cma_set_req_event_data()
2195 	event->param.conn.responder_resources = req_data->responder_resources;  in cma_set_req_event_data()
2196 	event->param.conn.initiator_depth = req_data->initiator_depth;  in cma_set_req_event_data()
2197 	event->param.conn.flow_control = req_data->flow_control;  in cma_set_req_event_data()
2198 	event->param.conn.retry_count = req_data->retry_count;  in cma_set_req_event_data()
2199 	event->param.conn.rnr_retry_count = req_data->rnr_retry_count;  in cma_set_req_event_data()
2200 	event->param.conn.srq = req_data->srq;  in cma_set_req_event_data()
2201 	event->param.conn.qp_num = req_data->remote_qpn;  in cma_set_req_event_data()
2203 	event->ece.vendor_id = req_data->ece.vendor_id;  in cma_set_req_event_data()
2204 	event->ece.attr_mod = req_data->ece.attr_mod;  in cma_set_req_event_data()
2210 	return (((ib_event->event == IB_CM_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2211 		 (ib_event->param.req_rcvd.qp_type == id->qp_type)) ||  in cma_ib_check_req_qp_type()
2212 		((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2213 		 (id->qp_type == IB_QPT_UD)) ||  in cma_ib_check_req_qp_type()
2214 		(!id->qp_type));  in cma_ib_check_req_qp_type()
2231 	trace_cm_req_handler(listen_id, ib_event->event);  in cma_ib_req_handler()
2232 	if (!cma_ib_check_req_qp_type(&listen_id->id, ib_event)) {  in cma_ib_req_handler()
2233 		ret = -EINVAL;  in cma_ib_req_handler()
2237 	mutex_lock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2238 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN) {  in cma_ib_req_handler()
2239 		ret = -ECONNABORTED;  in cma_ib_req_handler()
2245 	if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {  in cma_ib_req_handler()
2246 		conn_id = cma_ib_new_udp_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2247 		event.param.ud.private_data = ib_event->private_data + offset;  in cma_ib_req_handler()
2249 				IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;  in cma_ib_req_handler()
2251 		conn_id = cma_ib_new_conn_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2252 		cma_set_req_event_data(&event, &ib_event->param.req_rcvd,  in cma_ib_req_handler()
2253 				       ib_event->private_data, offset);  in cma_ib_req_handler()
2256 		ret = -ENOMEM;  in cma_ib_req_handler()
2260 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in cma_ib_req_handler()
2267 	conn_id->cm_id.ib = cm_id;  in cma_ib_req_handler()
2268 	cm_id->context = conn_id;  in cma_ib_req_handler()
2269 	cm_id->cm_handler = cma_ib_handler;  in cma_ib_req_handler()
2273 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_req_handler()
2274 		conn_id->cm_id.ib = NULL;  in cma_ib_req_handler()
2275 		mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2280 	if (READ_ONCE(conn_id->state) == RDMA_CM_CONNECT &&  in cma_ib_req_handler()
2281 	    conn_id->id.qp_type != IB_QPT_UD) {  in cma_ib_req_handler()
2282 		trace_cm_send_mra(cm_id->context);  in cma_ib_req_handler()
2285 	mutex_unlock(&conn_id->handler_mutex);  in cma_ib_req_handler()
2288 	mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2297 __be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_get_service_id()  argument
2299 	if (addr->sa_family == AF_IB)  in rdma_get_service_id()
2300 		return ((struct sockaddr_ib *) addr)->sib_sid;  in rdma_get_service_id()
2302 	return cpu_to_be64(((u64)id->ps << 16) + be16_to_cpu(cma_port(addr)));  in rdma_get_service_id()
2309 	struct rdma_addr *addr = &cm_id->route.addr;  in rdma_read_gids()  local
2311 	if (!cm_id->device) {  in rdma_read_gids()
2319 	if (rdma_protocol_roce(cm_id->device, cm_id->port_num)) {  in rdma_read_gids()
2321 			rdma_ip2gid((struct sockaddr *)&addr->src_addr, sgid);  in rdma_read_gids()
2323 			rdma_ip2gid((struct sockaddr *)&addr->dst_addr, dgid);  in rdma_read_gids()
2326 			rdma_addr_get_sgid(&addr->dev_addr, sgid);  in rdma_read_gids()
2328 			rdma_addr_get_dgid(&addr->dev_addr, dgid);  in rdma_read_gids()
2335 	struct rdma_id_private *id_priv = iw_id->context;  in cma_iw_handler()
2338 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in cma_iw_handler()
2339 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in cma_iw_handler()
2341 	mutex_lock(&id_priv->handler_mutex);  in cma_iw_handler()
2342 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_iw_handler()
2345 	switch (iw_event->event) {  in cma_iw_handler()
2354 		switch (iw_event->status) {  in cma_iw_handler()
2357 			event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2358 			event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2360 		case -ECONNRESET:  in cma_iw_handler()
2361 		case -ECONNREFUSED:  in cma_iw_handler()
2364 		case -ETIMEDOUT:  in cma_iw_handler()
2374 		event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2375 		event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2381 	event.status = iw_event->status;  in cma_iw_handler()
2382 	event.param.conn.private_data = iw_event->private_data;  in cma_iw_handler()
2383 	event.param.conn.private_data_len = iw_event->private_data_len;  in cma_iw_handler()
2386 		/* Destroy the CM ID by returning a non-zero value. */  in cma_iw_handler()
2387 		id_priv->cm_id.iw = NULL;  in cma_iw_handler()
2393 	mutex_unlock(&id_priv->handler_mutex);  in cma_iw_handler()
2402 	int ret = -ECONNABORTED;  in iw_conn_req_handler()
2403 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in iw_conn_req_handler()
2404 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in iw_conn_req_handler()
2407 	event.param.conn.private_data = iw_event->private_data;  in iw_conn_req_handler()
2408 	event.param.conn.private_data_len = iw_event->private_data_len;  in iw_conn_req_handler()
2409 	event.param.conn.initiator_depth = iw_event->ird;  in iw_conn_req_handler()
2410 	event.param.conn.responder_resources = iw_event->ord;  in iw_conn_req_handler()
2412 	listen_id = cm_id->context;  in iw_conn_req_handler()
2414 	mutex_lock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2415 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN)  in iw_conn_req_handler()
2419 	conn_id = __rdma_create_id(listen_id->id.route.addr.dev_addr.net,  in iw_conn_req_handler()
2420 				   listen_id->id.event_handler,  in iw_conn_req_handler()
2421 				   listen_id->id.context, RDMA_PS_TCP,  in iw_conn_req_handler()
2424 		ret = -ENOMEM;  in iw_conn_req_handler()
2427 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in iw_conn_req_handler()
2428 	conn_id->state = RDMA_CM_CONNECT;  in iw_conn_req_handler()
2430 	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr);  in iw_conn_req_handler()
2432 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2439 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2444 	conn_id->cm_id.iw = cm_id;  in iw_conn_req_handler()
2445 	cm_id->context = conn_id;  in iw_conn_req_handler()
2446 	cm_id->cm_handler = cma_iw_handler;  in iw_conn_req_handler()
2454 		conn_id->cm_id.iw = NULL;  in iw_conn_req_handler()
2455 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2460 	mutex_unlock(&conn_id->handler_mutex);  in iw_conn_req_handler()
2463 	mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2469 	struct sockaddr *addr;  in cma_ib_listen()  local
2473 	addr = cma_src_addr(id_priv);  in cma_ib_listen()
2474 	svc_id = rdma_get_service_id(&id_priv->id, addr);  in cma_ib_listen()
2475 	id = ib_cm_insert_listen(id_priv->id.device,  in cma_ib_listen()
2479 	id_priv->cm_id.ib = id;  in cma_ib_listen()
2489 	id = iw_create_cm_id(id_priv->id.device,  in cma_iw_listen()
2495 	mutex_lock(&id_priv->qp_mutex);  in cma_iw_listen()
2496 	id->tos = id_priv->tos;  in cma_iw_listen()
2497 	id->tos_set = id_priv->tos_set;  in cma_iw_listen()
2498 	mutex_unlock(&id_priv->qp_mutex);  in cma_iw_listen()
2499 	id->afonly = id_priv->afonly;  in cma_iw_listen()
2500 	id_priv->cm_id.iw = id;  in cma_iw_listen()
2502 	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),  in cma_iw_listen()
2505 	ret = iw_cm_listen(id_priv->cm_id.iw, backlog);  in cma_iw_listen()
2508 		iw_destroy_cm_id(id_priv->cm_id.iw);  in cma_iw_listen()
2509 		id_priv->cm_id.iw = NULL;  in cma_iw_listen()
2518 	struct rdma_id_private *id_priv = id->context;  in cma_listen_handler()
2521 	if (event->event == RDMA_CM_EVENT_DEVICE_REMOVAL)  in cma_listen_handler()
2522 		return -1;  in cma_listen_handler()
2524 	id->context = id_priv->id.context;  in cma_listen_handler()
2525 	id->event_handler = id_priv->id.event_handler;  in cma_listen_handler()
2527 	return id_priv->id.event_handler(id, event);  in cma_listen_handler()
2535 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_listen_on_dev()
2541 	if (cma_family(id_priv) == AF_IB && !rdma_cap_ib_cm(cma_dev->device, 1))  in cma_listen_on_dev()
2546 				 id_priv->id.ps, id_priv->id.qp_type, id_priv);  in cma_listen_on_dev()
2550 	dev_id_priv->state = RDMA_CM_ADDR_BOUND;  in cma_listen_on_dev()
2555 	rdma_restrack_add(&dev_id_priv->res);  in cma_listen_on_dev()
2557 	dev_id_priv->internal_id = 1;  in cma_listen_on_dev()
2558 	dev_id_priv->afonly = id_priv->afonly;  in cma_listen_on_dev()
2559 	mutex_lock(&id_priv->qp_mutex);  in cma_listen_on_dev()
2560 	dev_id_priv->tos_set = id_priv->tos_set;  in cma_listen_on_dev()
2561 	dev_id_priv->tos = id_priv->tos;  in cma_listen_on_dev()
2562 	mutex_unlock(&id_priv->qp_mutex);  in cma_listen_on_dev()
2564 	ret = rdma_listen(&dev_id_priv->id, id_priv->backlog);  in cma_listen_on_dev()
2567 	list_add_tail(&dev_id_priv->listen_list, &id_priv->listen_list);  in cma_listen_on_dev()
2572 	dev_warn(&cma_dev->device->dev, "RDMA CMA: %s, error %d\n", __func__, ret);  in cma_listen_on_dev()
2583 	list_add_tail(&id_priv->list, &listen_any_list);  in cma_listen_on_all()
2589 				list_del_init(&to_destroy->list);  in cma_listen_on_all()
2600 		rdma_destroy_id(&to_destroy->id);  in cma_listen_on_all()
2609 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_service_type()
2610 	id_priv->tos = (u8) tos;  in rdma_set_service_type()
2611 	id_priv->tos_set = true;  in rdma_set_service_type()
2612 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_service_type()
2617  * rdma_set_ack_timeout() - Set the ack timeout of QP associated
2635 	if (id->qp_type != IB_QPT_RC)  in rdma_set_ack_timeout()
2636 		return -EINVAL;  in rdma_set_ack_timeout()
2639 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_ack_timeout()
2640 	id_priv->timeout = timeout;  in rdma_set_ack_timeout()
2641 	id_priv->timeout_set = true;  in rdma_set_ack_timeout()
2642 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_ack_timeout()
2649  * rdma_set_min_rnr_timer() - Set the minimum RNR Retry timer of the
2652  * @min_rnr_timer: 5-bit value encoded as Table 45: "Encoding for RNR NAK
2670 	/* It is a five-bit value */  in rdma_set_min_rnr_timer()
2672 		return -EINVAL;  in rdma_set_min_rnr_timer()
2674 	if (WARN_ON(id->qp_type != IB_QPT_RC && id->qp_type != IB_QPT_XRC_TGT))  in rdma_set_min_rnr_timer()
2675 		return -EINVAL;  in rdma_set_min_rnr_timer()
2678 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_min_rnr_timer()
2679 	id_priv->min_rnr_timer = min_rnr_timer;  in rdma_set_min_rnr_timer()
2680 	id_priv->min_rnr_timer_set = true;  in rdma_set_min_rnr_timer()
2681 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_min_rnr_timer()
2693 	route = &work->id->id.route;  in cma_query_handler()
2696 		route->num_paths = 1;  in cma_query_handler()
2697 		*route->path_rec = *path_rec;  in cma_query_handler()
2699 		work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_query_handler()
2700 		work->new_state = RDMA_CM_ADDR_RESOLVED;  in cma_query_handler()
2701 		work->event.event = RDMA_CM_EVENT_ROUTE_ERROR;  in cma_query_handler()
2702 		work->event.status = status;  in cma_query_handler()
2707 	queue_work(cma_wq, &work->work);  in cma_query_handler()
2713 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_query_ib_route()
2721 	if (rdma_cap_opa_ah(id_priv->id.device, id_priv->id.port_num))  in cma_query_ib_route()
2730 	path_rec.service_id = rdma_get_service_id(&id_priv->id,  in cma_query_ib_route()
2739 		path_rec.qos_class = cpu_to_be16((u16) id_priv->tos);  in cma_query_ib_route()
2744 		path_rec.traffic_class = (u8) (be32_to_cpu(sin6->sin6_flowinfo) >> 20);  in cma_query_ib_route()
2749 		path_rec.traffic_class = (u8) (be32_to_cpu(sib->sib_flowinfo) >> 20);  in cma_query_ib_route()
2754 	id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device,  in cma_query_ib_route()
2755 					       id_priv->id.port_num, &path_rec,  in cma_query_ib_route()
2758 					       work, &id_priv->query);  in cma_query_ib_route()
2760 	return (id_priv->query_id < 0) ? id_priv->query_id : 0;  in cma_query_ib_route()
2767 	struct rdma_cm_event *event = &mc->iboe_join.event;  in cma_iboe_join_work_handler()
2768 	struct rdma_id_private *id_priv = mc->id_priv;  in cma_iboe_join_work_handler()
2771 	mutex_lock(&id_priv->handler_mutex);  in cma_iboe_join_work_handler()
2772 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_iboe_join_work_handler()
2773 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_iboe_join_work_handler()
2780 	mutex_unlock(&id_priv->handler_mutex);  in cma_iboe_join_work_handler()
2781 	if (event->event == RDMA_CM_EVENT_MULTICAST_JOIN)  in cma_iboe_join_work_handler()
2782 		rdma_destroy_ah_attr(&event->param.ud.ah_attr);  in cma_iboe_join_work_handler()
2788 	struct rdma_id_private *id_priv = work->id;  in cma_work_handler()
2790 	mutex_lock(&id_priv->handler_mutex);  in cma_work_handler()
2791 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_work_handler()
2792 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_work_handler()
2794 	if (work->old_state != 0 || work->new_state != 0) {  in cma_work_handler()
2795 		if (!cma_comp_exch(id_priv, work->old_state, work->new_state))  in cma_work_handler()
2799 	if (cma_cm_event_handler(id_priv, &work->event)) {  in cma_work_handler()
2806 	mutex_unlock(&id_priv->handler_mutex);  in cma_work_handler()
2809 	if (work->event.event == RDMA_CM_EVENT_MULTICAST_JOIN)  in cma_work_handler()
2810 		rdma_destroy_ah_attr(&work->event.param.ud.ah_attr);  in cma_work_handler()
2817 	work->id = id_priv;  in cma_init_resolve_route_work()
2818 	INIT_WORK(&work->work, cma_work_handler);  in cma_init_resolve_route_work()
2819 	work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_init_resolve_route_work()
2820 	work->new_state = RDMA_CM_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
2821 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
2830 	work->id = id_priv;  in enqueue_resolve_addr_work()
2831 	INIT_WORK(&work->work, cma_work_handler);  in enqueue_resolve_addr_work()
2832 	work->old_state = RDMA_CM_ADDR_QUERY;  in enqueue_resolve_addr_work()
2833 	work->new_state = RDMA_CM_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
2834 	work->event.event = RDMA_CM_EVENT_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
2836 	queue_work(cma_wq, &work->work);  in enqueue_resolve_addr_work()
2842 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_ib_route()
2848 		return -ENOMEM;  in cma_resolve_ib_route()
2852 	if (!route->path_rec)  in cma_resolve_ib_route()
2853 		route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_ib_route()
2854 	if (!route->path_rec) {  in cma_resolve_ib_route()
2855 		ret = -ENOMEM;  in cma_resolve_ib_route()
2865 	kfree(route->path_rec);  in cma_resolve_ib_route()
2866 	route->path_rec = NULL;  in cma_resolve_ib_route()
2894 	struct rdma_route *route = &id_priv->id.route;  in cma_iboe_set_path_rec_l2_fields()
2896 	struct rdma_addr *addr = &route->addr;  in cma_iboe_set_path_rec_l2_fields()  local
2900 	if (!addr->dev_addr.bound_dev_if)  in cma_iboe_set_path_rec_l2_fields()
2903 	ndev = dev_get_by_index(addr->dev_addr.net,  in cma_iboe_set_path_rec_l2_fields()
2904 				addr->dev_addr.bound_dev_if);  in cma_iboe_set_path_rec_l2_fields()
2908 	supported_gids = roce_gid_type_mask_support(id_priv->id.device,  in cma_iboe_set_path_rec_l2_fields()
2909 						    id_priv->id.port_num);  in cma_iboe_set_path_rec_l2_fields()
2910 	gid_type = cma_route_gid_type(addr->dev_addr.network,  in cma_iboe_set_path_rec_l2_fields()
2912 				      id_priv->gid_type);  in cma_iboe_set_path_rec_l2_fields()
2914 	if (gid_type < ib_network_to_gid_type(addr->dev_addr.network))  in cma_iboe_set_path_rec_l2_fields()
2915 		gid_type = ib_network_to_gid_type(addr->dev_addr.network);  in cma_iboe_set_path_rec_l2_fields()
2916 	route->path_rec->rec_type = sa_conv_gid_to_pathrec_type(gid_type);  in cma_iboe_set_path_rec_l2_fields()
2918 	route->path_rec->roce.route_resolved = true;  in cma_iboe_set_path_rec_l2_fields()
2919 	sa_path_set_dmac(route->path_rec, addr->dev_addr.dst_dev_addr);  in cma_iboe_set_path_rec_l2_fields()
2933 		return -EINVAL;  in rdma_set_ib_path()
2935 	id->route.path_rec = kmemdup(path_rec, sizeof(*path_rec),  in rdma_set_ib_path()
2937 	if (!id->route.path_rec) {  in rdma_set_ib_path()
2938 		ret = -ENOMEM;  in rdma_set_ib_path()
2942 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_set_ib_path()
2945 			ret = -ENODEV;  in rdma_set_ib_path()
2951 	id->route.num_paths = 1;  in rdma_set_ib_path()
2955 	kfree(id->route.path_rec);  in rdma_set_ib_path()
2956 	id->route.path_rec = NULL;  in rdma_set_ib_path()
2969 		return -ENOMEM;  in cma_resolve_iw_route()
2972 	queue_work(cma_wq, &work->work);  in cma_resolve_iw_route()
2981 	if (dev->num_tc)  in get_vlan_ndev_tc()
2997 	struct iboe_prio_tc_map *map = (struct iboe_prio_tc_map *)priv->data;  in get_lower_vlan_dev_tc()
3000 		map->output_tc = get_vlan_ndev_tc(dev, map->input_prio);  in get_lower_vlan_dev_tc()
3001 	else if (dev->num_tc)  in get_lower_vlan_dev_tc()
3002 		map->output_tc = netdev_get_prio_tc_map(dev, map->input_prio);  in get_lower_vlan_dev_tc()
3004 		map->output_tc = 0;  in get_lower_vlan_dev_tc()
3005 	/* We are interested only in first level VLAN device, so always  in get_lower_vlan_dev_tc()
3008 	map->found = true;  in get_lower_vlan_dev_tc()
3018 	/* If VLAN device, get it directly from the VLAN netdev */  in iboe_tos_to_sl()
3029 	/* If map is found from lower device, use it; Otherwise  in iboe_tos_to_sl()
3034 	else if (ndev->num_tc)  in iboe_tos_to_sl()
3047 	fl = be32_to_cpu(addr6->sin6_flowinfo) & IB_GRH_FLOWLABEL_MASK;  in cma_get_roce_udp_flow_label()
3060 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_iboe_route()
3061 	struct rdma_addr *addr = &route->addr;  in cma_resolve_iboe_route()  local
3066 	u8 default_roce_tos = id_priv->cma_dev->default_roce_tos[id_priv->id.port_num -  in cma_resolve_iboe_route()
3067 					rdma_start_port(id_priv->cma_dev->device)];  in cma_resolve_iboe_route()
3070 	mutex_lock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3071 	tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;  in cma_resolve_iboe_route()
3072 	mutex_unlock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3076 		return -ENOMEM;  in cma_resolve_iboe_route()
3078 	route->path_rec = kzalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_iboe_route()
3079 	if (!route->path_rec) {  in cma_resolve_iboe_route()
3080 		ret = -ENOMEM;  in cma_resolve_iboe_route()
3084 	route->num_paths = 1;  in cma_resolve_iboe_route()
3088 		ret = -ENODEV;  in cma_resolve_iboe_route()
3092 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_resolve_iboe_route()
3093 		    &route->path_rec->sgid);  in cma_resolve_iboe_route()
3094 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,  in cma_resolve_iboe_route()
3095 		    &route->path_rec->dgid);  in cma_resolve_iboe_route()
3097 	if (((struct sockaddr *)&id_priv->id.route.addr.dst_addr)->sa_family != AF_IB)  in cma_resolve_iboe_route()
3098 		/* TODO: get the hoplimit from the inet/inet6 device */  in cma_resolve_iboe_route()
3099 		route->path_rec->hop_limit = addr->dev_addr.hoplimit;  in cma_resolve_iboe_route()
3101 		route->path_rec->hop_limit = 1;  in cma_resolve_iboe_route()
3102 	route->path_rec->reversible = 1;  in cma_resolve_iboe_route()
3103 	route->path_rec->pkey = cpu_to_be16(0xffff);  in cma_resolve_iboe_route()
3104 	route->path_rec->mtu_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3105 	route->path_rec->sl = iboe_tos_to_sl(ndev, tos);  in cma_resolve_iboe_route()
3106 	route->path_rec->traffic_class = tos;  in cma_resolve_iboe_route()
3107 	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);  in cma_resolve_iboe_route()
3108 	route->path_rec->rate_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3109 	route->path_rec->rate = iboe_get_rate(ndev);  in cma_resolve_iboe_route()
3111 	route->path_rec->packet_life_time_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3119 	mutex_lock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3120 	if (id_priv->timeout_set && id_priv->timeout)  in cma_resolve_iboe_route()
3121 		route->path_rec->packet_life_time = id_priv->timeout - 1;  in cma_resolve_iboe_route()
3123 		route->path_rec->packet_life_time = CMA_IBOE_PACKET_LIFETIME;  in cma_resolve_iboe_route()
3124 	mutex_unlock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3126 	if (!route->path_rec->mtu) {  in cma_resolve_iboe_route()
3127 		ret = -EINVAL;  in cma_resolve_iboe_route()
3131 	if (rdma_protocol_roce_udp_encap(id_priv->id.device,  in cma_resolve_iboe_route()
3132 					 id_priv->id.port_num))  in cma_resolve_iboe_route()
3133 		route->path_rec->flow_label =  in cma_resolve_iboe_route()
3137 	queue_work(cma_wq, &work->work);  in cma_resolve_iboe_route()
3142 	kfree(route->path_rec);  in cma_resolve_iboe_route()
3143 	route->path_rec = NULL;  in cma_resolve_iboe_route()
3144 	route->num_paths = 0;  in cma_resolve_iboe_route()
3156 		return -EINVAL;  in rdma_resolve_route()
3160 		return -EINVAL;  in rdma_resolve_route()
3163 	if (rdma_cap_ib_sa(id->device, id->port_num))  in rdma_resolve_route()
3165 	else if (rdma_protocol_roce(id->device, id->port_num))  in rdma_resolve_route()
3167 	else if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_resolve_route()
3170 		ret = -ENOSYS;  in rdma_resolve_route()
3183 static void cma_set_loopback(struct sockaddr *addr)  in cma_set_loopback()  argument
3185 	switch (addr->sa_family) {  in cma_set_loopback()
3187 		((struct sockaddr_in *) addr)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);  in cma_set_loopback()
3190 		ipv6_addr_set(&((struct sockaddr_in6 *) addr)->sin6_addr,  in cma_set_loopback()
3194 		ib_addr_set(&((struct sockaddr_ib *) addr)->sib_addr,  in cma_set_loopback()
3213 		    !rdma_cap_ib_cm(cur_dev->device, 1))  in cma_bind_loopback()
3219 		rdma_for_each_port (cur_dev->device, p) {  in cma_bind_loopback()
3220 			if (!ib_get_cached_port_state(cur_dev->device, p, &port_state) &&  in cma_bind_loopback()
3229 		ret = -ENODEV;  in cma_bind_loopback()
3236 	ret = rdma_query_gid(cma_dev->device, p, 0, &gid);  in cma_bind_loopback()
3240 	ret = ib_get_cached_pkey(cma_dev->device, p, 0, &pkey);  in cma_bind_loopback()
3244 	id_priv->id.route.addr.dev_addr.dev_type =  in cma_bind_loopback()
3245 		(rdma_protocol_ib(cma_dev->device, p)) ?  in cma_bind_loopback()
3248 	rdma_addr_set_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_bind_loopback()
3249 	ib_addr_set_pkey(&id_priv->id.route.addr.dev_addr, pkey);  in cma_bind_loopback()
3250 	id_priv->id.port_num = p;  in cma_bind_loopback()
3252 	rdma_restrack_add(&id_priv->res);  in cma_bind_loopback()
3264 	struct sockaddr *addr;  in addr_handler()  local
3267 	mutex_lock(&id_priv->handler_mutex);  in addr_handler()
3274 	 * matching rdma device, old address can be restored back, which helps  in addr_handler()
3277 	addr = cma_src_addr(id_priv);  in addr_handler()
3278 	memcpy(&old_addr, addr, rdma_addr_size(addr));  in addr_handler()
3279 	memcpy(addr, src_addr, rdma_addr_size(src_addr));  in addr_handler()
3280 	if (!status && !id_priv->cma_dev) {  in addr_handler()
3283 			pr_debug_ratelimited("RDMA CM: ADDR_ERROR: failed to acquire device. status %d\n",  in addr_handler()
3285 		rdma_restrack_add(&id_priv->res);  in addr_handler()
3291 		memcpy(addr, &old_addr,  in addr_handler()
3306 	mutex_unlock(&id_priv->handler_mutex);  in addr_handler()
3317 		return -ENOMEM;  in cma_resolve_loopback()
3319 	if (!id_priv->cma_dev) {  in cma_resolve_loopback()
3325 	rdma_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3326 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3342 		return -ENOMEM;  in cma_resolve_ib_addr()
3344 	if (!id_priv->cma_dev) {  in cma_resolve_ib_addr()
3350 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, (union ib_gid *)  in cma_resolve_ib_addr()
3351 		&(((struct sockaddr_ib *) &id_priv->id.route.addr.dst_addr)->sib_addr));  in cma_resolve_ib_addr()
3363 	if (!src_addr || !src_addr->sa_family) {  in cma_bind_addr()
3364 		src_addr = (struct sockaddr *) &id->route.addr.src_addr;  in cma_bind_addr()
3365 		src_addr->sa_family = dst_addr->sa_family;  in cma_bind_addr()
3367 		    dst_addr->sa_family == AF_INET6) {  in cma_bind_addr()
3370 			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;  in cma_bind_addr()
3371 			if (ipv6_addr_type(&dst_addr6->sin6_addr) & IPV6_ADDR_LINKLOCAL)  in cma_bind_addr()
3372 				id->route.addr.dev_addr.bound_dev_if = dst_addr6->sin6_scope_id;  in cma_bind_addr()
3373 		} else if (dst_addr->sa_family == AF_IB) {  in cma_bind_addr()
3374 			((struct sockaddr_ib *) src_addr)->sib_pkey =  in cma_bind_addr()
3375 				((struct sockaddr_ib *) dst_addr)->sib_pkey;  in cma_bind_addr()
3384  * calls made by ULP, a previously bound ID will not be re-bound and src_addr is
3396 		ret = cma_bind_addr(&id_priv->id, src_addr, dst_addr);  in resolve_prepare_src()
3401 			ret = -EINVAL;  in resolve_prepare_src()
3406 	if (cma_family(id_priv) != dst_addr->sa_family) {  in resolve_prepare_src()
3407 		ret = -EINVAL;  in resolve_prepare_src()
3433 		if (dst_addr->sa_family == AF_IB) {  in rdma_resolve_addr()
3447 			if (id_priv->used_resolve_ip)  in rdma_resolve_addr()
3448 				rdma_addr_cancel(&id->route.addr.dev_addr);  in rdma_resolve_addr()
3450 				id_priv->used_resolve_ip = 1;  in rdma_resolve_addr()
3452 					      &id->route.addr.dev_addr,  in rdma_resolve_addr()
3474 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3475 	if ((reuse && id_priv->state != RDMA_CM_LISTEN) ||  in rdma_set_reuseaddr()
3476 	    id_priv->state == RDMA_CM_IDLE) {  in rdma_set_reuseaddr()
3477 		id_priv->reuseaddr = reuse;  in rdma_set_reuseaddr()
3480 		ret = -EINVAL;  in rdma_set_reuseaddr()
3482 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3494 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_afonly()
3495 	if (id_priv->state == RDMA_CM_IDLE || id_priv->state == RDMA_CM_ADDR_BOUND) {  in rdma_set_afonly()
3496 		id_priv->options |= (1 << CMA_OPTION_AFONLY);  in rdma_set_afonly()
3497 		id_priv->afonly = afonly;  in rdma_set_afonly()
3500 		ret = -EINVAL;  in rdma_set_afonly()
3502 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_afonly()
3510 	struct sockaddr *addr;  in cma_bind_port()  local
3517 	addr = cma_src_addr(id_priv);  in cma_bind_port()
3518 	port = htons(bind_list->port);  in cma_bind_port()
3520 	switch (addr->sa_family) {  in cma_bind_port()
3522 		((struct sockaddr_in *) addr)->sin_port = port;  in cma_bind_port()
3525 		((struct sockaddr_in6 *) addr)->sin6_port = port;  in cma_bind_port()
3528 		sib = (struct sockaddr_ib *) addr;  in cma_bind_port()
3529 		sid = be64_to_cpu(sib->sib_sid);  in cma_bind_port()
3530 		mask = be64_to_cpu(sib->sib_sid_mask);  in cma_bind_port()
3531 		sib->sib_sid = cpu_to_be64((sid & mask) | (u64) ntohs(port));  in cma_bind_port()
3532 		sib->sib_sid_mask = cpu_to_be64(~0ULL);  in cma_bind_port()
3535 	id_priv->bind_list = bind_list;  in cma_bind_port()
3536 	hlist_add_head(&id_priv->node, &bind_list->owners);  in cma_bind_port()
3549 		return -ENOMEM;  in cma_alloc_port()
3551 	ret = cma_ps_alloc(id_priv->id.route.addr.dev_addr.net, ps, bind_list,  in cma_alloc_port()
3556 	bind_list->ps = ps;  in cma_alloc_port()
3557 	bind_list->port = snum;  in cma_alloc_port()
3562 	return ret == -ENOSPC ? -EADDRNOTAVAIL : ret;  in cma_alloc_port()
3575 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_port_is_unique()
3583 		/* different dest port -> unique */  in cma_port_is_unique()
3589 		/* different src address -> unique */  in cma_port_is_unique()
3595 		/* different dst address -> unique */  in cma_port_is_unique()
3601 		return -EADDRNOTAVAIL;  in cma_port_is_unique()
3612 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_alloc_any_port()
3617 	remaining = (high - low) + 1;  in cma_alloc_any_port()
3635 		 * re-using same port immediately after it is closed.  in cma_alloc_any_port()
3639 		if (ret != -EADDRNOTAVAIL)  in cma_alloc_any_port()
3642 	if (--remaining) {  in cma_alloc_any_port()
3648 	return -EADDRNOTAVAIL;  in cma_alloc_any_port()
3661 	struct sockaddr *addr, *cur_addr;  in cma_check_port()  local
3665 	addr = cma_src_addr(id_priv);  in cma_check_port()
3666 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_check_port()
3670 		if (reuseaddr && cur_id->reuseaddr)  in cma_check_port()
3674 		if (id_priv->afonly && cur_id->afonly &&  in cma_check_port()
3675 		    (addr->sa_family != cur_addr->sa_family))  in cma_check_port()
3678 		if (cma_any_addr(addr) || cma_any_addr(cur_addr))  in cma_check_port()
3679 			return -EADDRNOTAVAIL;  in cma_check_port()
3681 		if (!cma_addr_cmp(addr, cur_addr))  in cma_check_port()
3682 			return -EADDRINUSE;  in cma_check_port()
3698 		return -EACCES;  in cma_use_port()
3700 	bind_list = cma_ps_find(id_priv->id.route.addr.dev_addr.net, ps, snum);  in cma_use_port()
3704 		ret = cma_check_port(bind_list, id_priv, id_priv->reuseaddr);  in cma_use_port()
3714 	switch (id_priv->id.ps) {  in cma_select_inet_ps()
3719 		return id_priv->id.ps;  in cma_select_inet_ps()
3734 	mask = be64_to_cpu(sib->sib_sid_mask) & RDMA_IB_IP_PS_MASK;  in cma_select_ib_ps()
3735 	sid = be64_to_cpu(sib->sib_sid) & mask;  in cma_select_ib_ps()
3737 	if ((id_priv->id.ps == RDMA_PS_IB) && (sid == (RDMA_IB_IP_PS_IB & mask))) {  in cma_select_ib_ps()
3740 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_TCP)) &&  in cma_select_ib_ps()
3744 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_UDP)) &&  in cma_select_ib_ps()
3751 		sib->sib_sid = cpu_to_be64(sid_ps | ntohs(cma_port((struct sockaddr *) sib)));  in cma_select_ib_ps()
3752 		sib->sib_sid_mask = cpu_to_be64(RDMA_IB_IP_PS_MASK |  in cma_select_ib_ps()
3753 						be64_to_cpu(sib->sib_sid_mask));  in cma_select_ib_ps()
3768 		return -EPROTONOSUPPORT;  in cma_get_port()
3781 			       struct sockaddr *addr)  in cma_check_linklocal()  argument
3786 	if (addr->sa_family != AF_INET6)  in cma_check_linklocal()
3789 	sin6 = (struct sockaddr_in6 *) addr;  in cma_check_linklocal()
3791 	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))  in cma_check_linklocal()
3794 	if (!sin6->sin6_scope_id)  in cma_check_linklocal()
3795 			return -EINVAL;  in cma_check_linklocal()
3797 	dev_addr->bound_dev_if = sin6->sin6_scope_id;  in cma_check_linklocal()
3820 			return -EINVAL;  in rdma_listen()
3827 	if (id_priv->reuseaddr) {  in rdma_listen()
3829 		ret = cma_check_port(id_priv->bind_list, id_priv, 0);  in rdma_listen()
3831 			id_priv->reuseaddr = 0;  in rdma_listen()
3837 	id_priv->backlog = backlog;  in rdma_listen()
3838 	if (id_priv->cma_dev) {  in rdma_listen()
3839 		if (rdma_cap_ib_cm(id->device, 1)) {  in rdma_listen()
3843 		} else if (rdma_cap_iw_cm(id->device, 1)) {  in rdma_listen()
3848 			ret = -ENOSYS;  in rdma_listen()
3859 	id_priv->backlog = 0;  in rdma_listen()
3869 int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_bind_addr()  argument
3875 	if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&  in rdma_bind_addr()
3876 	    addr->sa_family != AF_IB)  in rdma_bind_addr()
3877 		return -EAFNOSUPPORT;  in rdma_bind_addr()
3881 		return -EINVAL;  in rdma_bind_addr()
3883 	ret = cma_check_linklocal(&id->route.addr.dev_addr, addr);  in rdma_bind_addr()
3887 	memcpy(cma_src_addr(id_priv), addr, rdma_addr_size(addr));  in rdma_bind_addr()
3888 	if (!cma_any_addr(addr)) {  in rdma_bind_addr()
3889 		ret = cma_translate_addr(addr, &id->route.addr.dev_addr);  in rdma_bind_addr()
3898 	if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) {  in rdma_bind_addr()
3899 		if (addr->sa_family == AF_INET)  in rdma_bind_addr()
3900 			id_priv->afonly = 1;  in rdma_bind_addr()
3902 		else if (addr->sa_family == AF_INET6) {  in rdma_bind_addr()
3903 			struct net *net = id_priv->id.route.addr.dev_addr.net;  in rdma_bind_addr()
3905 			id_priv->afonly = net->ipv6.sysctl.bindv6only;  in rdma_bind_addr()
3910 	daddr->sa_family = addr->sa_family;  in rdma_bind_addr()
3916 	if (!cma_any_addr(addr))  in rdma_bind_addr()
3917 		rdma_restrack_add(&id_priv->res);  in rdma_bind_addr()
3920 	if (id_priv->cma_dev)  in rdma_bind_addr()
3933 	cma_hdr->cma_version = CMA_VERSION;  in cma_format_hdr()
3941 		cma_hdr->src_addr.ip4.addr = src4->sin_addr.s_addr;  in cma_format_hdr()
3942 		cma_hdr->dst_addr.ip4.addr = dst4->sin_addr.s_addr;  in cma_format_hdr()
3943 		cma_hdr->port = src4->sin_port;  in cma_format_hdr()
3951 		cma_hdr->src_addr.ip6 = src6->sin6_addr;  in cma_format_hdr()
3952 		cma_hdr->dst_addr.ip6 = dst6->sin6_addr;  in cma_format_hdr()
3953 		cma_hdr->port = src6->sin6_port;  in cma_format_hdr()
3961 	struct rdma_id_private *id_priv = cm_id->context;  in cma_sidr_rep_handler()
3964 				&ib_event->param.sidr_rep_rcvd;  in cma_sidr_rep_handler()
3967 	mutex_lock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
3968 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_sidr_rep_handler()
3971 	switch (ib_event->event) {  in cma_sidr_rep_handler()
3974 		event.status = -ETIMEDOUT;  in cma_sidr_rep_handler()
3977 		event.param.ud.private_data = ib_event->private_data;  in cma_sidr_rep_handler()
3979 		if (rep->status != IB_SIDR_SUCCESS) {  in cma_sidr_rep_handler()
3981 			event.status = ib_event->param.sidr_rep_rcvd.status;  in cma_sidr_rep_handler()
3986 		ret = cma_set_qkey(id_priv, rep->qkey);  in cma_sidr_rep_handler()
3993 		ib_init_ah_attr_from_path(id_priv->id.device,  in cma_sidr_rep_handler()
3994 					  id_priv->id.port_num,  in cma_sidr_rep_handler()
3995 					  id_priv->id.route.path_rec,  in cma_sidr_rep_handler()
3997 					  rep->sgid_attr);  in cma_sidr_rep_handler()
3998 		event.param.ud.qp_num = rep->qpn;  in cma_sidr_rep_handler()
3999 		event.param.ud.qkey = rep->qkey;  in cma_sidr_rep_handler()
4005 		       ib_event->event);  in cma_sidr_rep_handler()
4013 		/* Destroy the CM ID by returning a non-zero value. */  in cma_sidr_rep_handler()
4014 		id_priv->cm_id.ib = NULL;  in cma_sidr_rep_handler()
4019 	mutex_unlock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
4034 	req.private_data_len = offset + conn_param->private_data_len;  in cma_resolve_ib_udp()
4035 	if (req.private_data_len < conn_param->private_data_len)  in cma_resolve_ib_udp()
4036 		return -EINVAL;  in cma_resolve_ib_udp()
4041 			return -ENOMEM;  in cma_resolve_ib_udp()
4046 	if (conn_param->private_data && conn_param->private_data_len)  in cma_resolve_ib_udp()
4047 		memcpy(private_data + offset, conn_param->private_data,  in cma_resolve_ib_udp()
4048 		       conn_param->private_data_len);  in cma_resolve_ib_udp()
4057 	id = ib_create_cm_id(id_priv->id.device, cma_sidr_rep_handler,  in cma_resolve_ib_udp()
4063 	id_priv->cm_id.ib = id;  in cma_resolve_ib_udp()
4065 	req.path = id_priv->id.route.path_rec;  in cma_resolve_ib_udp()
4066 	req.sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_resolve_ib_udp()
4067 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_resolve_ib_udp()
4068 	req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);  in cma_resolve_ib_udp()
4072 	ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);  in cma_resolve_ib_udp()
4074 		ib_destroy_cm_id(id_priv->cm_id.ib);  in cma_resolve_ib_udp()
4075 		id_priv->cm_id.ib = NULL;  in cma_resolve_ib_udp()
4094 	req.private_data_len = offset + conn_param->private_data_len;  in cma_connect_ib()
4095 	if (req.private_data_len < conn_param->private_data_len)  in cma_connect_ib()
4096 		return -EINVAL;  in cma_connect_ib()
4101 			return -ENOMEM;  in cma_connect_ib()
4106 	if (conn_param->private_data && conn_param->private_data_len)  in cma_connect_ib()
4107 		memcpy(private_data + offset, conn_param->private_data,  in cma_connect_ib()
4108 		       conn_param->private_data_len);  in cma_connect_ib()
4110 	id = ib_create_cm_id(id_priv->id.device, cma_ib_handler, id_priv);  in cma_connect_ib()
4115 	id_priv->cm_id.ib = id;  in cma_connect_ib()
4117 	route = &id_priv->id.route;  in cma_connect_ib()
4125 	req.primary_path = &route->path_rec[0];  in cma_connect_ib()
4126 	if (route->num_paths == 2)  in cma_connect_ib()
4127 		req.alternate_path = &route->path_rec[1];  in cma_connect_ib()
4129 	req.ppath_sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_connect_ib()
4131 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_connect_ib()
4132 	req.qp_num = id_priv->qp_num;  in cma_connect_ib()
4133 	req.qp_type = id_priv->id.qp_type;  in cma_connect_ib()
4134 	req.starting_psn = id_priv->seq_num;  in cma_connect_ib()
4135 	req.responder_resources = conn_param->responder_resources;  in cma_connect_ib()
4136 	req.initiator_depth = conn_param->initiator_depth;  in cma_connect_ib()
4137 	req.flow_control = conn_param->flow_control;  in cma_connect_ib()
4138 	req.retry_count = min_t(u8, 7, conn_param->retry_count);  in cma_connect_ib()
4139 	req.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_connect_ib()
4143 	req.srq = id_priv->srq ? 1 : 0;  in cma_connect_ib()
4144 	req.ece.vendor_id = id_priv->ece.vendor_id;  in cma_connect_ib()
4145 	req.ece.attr_mod = id_priv->ece.attr_mod;  in cma_connect_ib()
4148 	ret = ib_send_cm_req(id_priv->cm_id.ib, &req);  in cma_connect_ib()
4152 		id_priv->cm_id.ib = NULL;  in cma_connect_ib()
4166 	cm_id = iw_create_cm_id(id_priv->id.device, cma_iw_handler, id_priv);  in cma_connect_iw()
4170 	mutex_lock(&id_priv->qp_mutex);  in cma_connect_iw()
4171 	cm_id->tos = id_priv->tos;  in cma_connect_iw()
4172 	cm_id->tos_set = id_priv->tos_set;  in cma_connect_iw()
4173 	mutex_unlock(&id_priv->qp_mutex);  in cma_connect_iw()
4175 	id_priv->cm_id.iw = cm_id;  in cma_connect_iw()
4177 	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),  in cma_connect_iw()
4179 	memcpy(&cm_id->remote_addr, cma_dst_addr(id_priv),  in cma_connect_iw()
4187 		iw_param.ord = conn_param->initiator_depth;  in cma_connect_iw()
4188 		iw_param.ird = conn_param->responder_resources;  in cma_connect_iw()
4189 		iw_param.private_data = conn_param->private_data;  in cma_connect_iw()
4190 		iw_param.private_data_len = conn_param->private_data_len;  in cma_connect_iw()
4191 		iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;  in cma_connect_iw()
4194 		iw_param.qpn = id_priv->qp_num;  in cma_connect_iw()
4200 		id_priv->cm_id.iw = NULL;  in cma_connect_iw()
4206  * rdma_connect_locked - Initiate an active connection request.
4221 		return -EINVAL;  in rdma_connect_locked()
4223 	if (!id->qp) {  in rdma_connect_locked()
4224 		id_priv->qp_num = conn_param->qp_num;  in rdma_connect_locked()
4225 		id_priv->srq = conn_param->srq;  in rdma_connect_locked()
4228 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_connect_locked()
4229 		if (id->qp_type == IB_QPT_UD)  in rdma_connect_locked()
4233 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_connect_locked()
4236 		ret = -ENOSYS;  in rdma_connect_locked()
4248  * rdma_connect - Initiate an active connection request.
4265 	mutex_lock(&id_priv->handler_mutex);  in rdma_connect()
4267 	mutex_unlock(&id_priv->handler_mutex);  in rdma_connect()
4273  * rdma_connect_ece - Initiate an active connection request with ECE data.
4286 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_connect_ece()
4287 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_connect_ece()
4308 	rep.qp_num = id_priv->qp_num;  in cma_accept_ib()
4309 	rep.starting_psn = id_priv->seq_num;  in cma_accept_ib()
4310 	rep.private_data = conn_param->private_data;  in cma_accept_ib()
4311 	rep.private_data_len = conn_param->private_data_len;  in cma_accept_ib()
4312 	rep.responder_resources = conn_param->responder_resources;  in cma_accept_ib()
4313 	rep.initiator_depth = conn_param->initiator_depth;  in cma_accept_ib()
4315 	rep.flow_control = conn_param->flow_control;  in cma_accept_ib()
4316 	rep.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_accept_ib()
4317 	rep.srq = id_priv->srq ? 1 : 0;  in cma_accept_ib()
4318 	rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_accept_ib()
4319 	rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_accept_ib()
4322 	ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);  in cma_accept_ib()
4334 		return -EINVAL;  in cma_accept_iw()
4340 	iw_param.ord = conn_param->initiator_depth;  in cma_accept_iw()
4341 	iw_param.ird = conn_param->responder_resources;  in cma_accept_iw()
4342 	iw_param.private_data = conn_param->private_data;  in cma_accept_iw()
4343 	iw_param.private_data_len = conn_param->private_data_len;  in cma_accept_iw()
4344 	if (id_priv->id.qp)  in cma_accept_iw()
4345 		iw_param.qpn = id_priv->qp_num;  in cma_accept_iw()
4347 		iw_param.qpn = conn_param->qp_num;  in cma_accept_iw()
4349 	return iw_cm_accept(id_priv->cm_id.iw, &iw_param);  in cma_accept_iw()
4365 		rep.qp_num = id_priv->qp_num;  in cma_send_sidr_rep()
4366 		rep.qkey = id_priv->qkey;  in cma_send_sidr_rep()
4368 		rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_send_sidr_rep()
4369 		rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_send_sidr_rep()
4376 	return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);  in cma_send_sidr_rep()
4380  * rdma_accept - Called to accept a connection request or response.
4403 	lockdep_assert_held(&id_priv->handler_mutex);  in rdma_accept()
4405 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in rdma_accept()
4406 		return -EINVAL;  in rdma_accept()
4408 	if (!id->qp && conn_param) {  in rdma_accept()
4409 		id_priv->qp_num = conn_param->qp_num;  in rdma_accept()
4410 		id_priv->srq = conn_param->srq;  in rdma_accept()
4413 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_accept()
4414 		if (id->qp_type == IB_QPT_UD) {  in rdma_accept()
4417 							conn_param->qkey,  in rdma_accept()
4418 							conn_param->private_data,  in rdma_accept()
4419 							conn_param->private_data_len);  in rdma_accept()
4429 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_accept()
4432 		ret = -ENOSYS;  in rdma_accept()
4451 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_accept_ece()
4452 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_accept_ece()
4463 	mutex_lock(&id_priv->handler_mutex);  in rdma_lock_handler()
4472 	mutex_unlock(&id_priv->handler_mutex);  in rdma_unlock_handler()
4482 	if (!id_priv->cm_id.ib)  in rdma_notify()
4483 		return -EINVAL;  in rdma_notify()
4485 	switch (id->device->node_type) {  in rdma_notify()
4487 		ret = ib_cm_notify(id_priv->cm_id.ib, event);  in rdma_notify()
4504 	if (!id_priv->cm_id.ib)  in rdma_reject()
4505 		return -EINVAL;  in rdma_reject()
4507 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_reject()
4508 		if (id->qp_type == IB_QPT_UD) {  in rdma_reject()
4513 			ret = ib_send_cm_rej(id_priv->cm_id.ib, reason, NULL, 0,  in rdma_reject()
4516 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_reject()
4517 		ret = iw_cm_reject(id_priv->cm_id.iw,  in rdma_reject()
4520 		ret = -ENOSYS;  in rdma_reject()
4533 	if (!id_priv->cm_id.ib)  in rdma_disconnect()
4534 		return -EINVAL;  in rdma_disconnect()
4536 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_disconnect()
4542 		if (ib_send_cm_dreq(id_priv->cm_id.ib, NULL, 0)) {  in rdma_disconnect()
4543 			if (!ib_send_cm_drep(id_priv->cm_id.ib, NULL, 0))  in rdma_disconnect()
4548 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_disconnect()
4549 		ret = iw_cm_disconnect(id_priv->cm_id.iw, 0);  in rdma_disconnect()
4551 		ret = -EINVAL;  in rdma_disconnect()
4568 		status = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));  in cma_make_mc_event()
4573 	event->status = status;  in cma_make_mc_event()
4574 	event->param.ud.private_data = mc->context;  in cma_make_mc_event()
4576 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4580 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_make_mc_event()
4581 	ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_make_mc_event()
4583 		id_priv->cma_dev  in cma_make_mc_event()
4584 			->default_gid_type[id_priv->id.port_num -  in cma_make_mc_event()
4586 						   id_priv->cma_dev->device)];  in cma_make_mc_event()
4588 	event->event = RDMA_CM_EVENT_MULTICAST_JOIN;  in cma_make_mc_event()
4589 	if (ib_init_ah_from_mcmember(id_priv->id.device, id_priv->id.port_num,  in cma_make_mc_event()
4590 				     &multicast->rec, ndev, gid_type,  in cma_make_mc_event()
4591 				     &event->param.ud.ah_attr)) {  in cma_make_mc_event()
4592 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4596 	event->param.ud.qp_num = 0xFFFFFF;  in cma_make_mc_event()
4597 	event->param.ud.qkey = be32_to_cpu(multicast->rec.qkey);  in cma_make_mc_event()
4606 	struct cma_multicast *mc = multicast->context;  in cma_ib_mc_handler()
4607 	struct rdma_id_private *id_priv = mc->id_priv;  in cma_ib_mc_handler()
4611 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4612 	if (READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL ||  in cma_ib_mc_handler()
4613 	    READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING)  in cma_ib_mc_handler()
4622 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4627 			 struct sockaddr *addr, union ib_gid *mgid)  in cma_set_mgid()  argument
4630 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_set_mgid()
4631 	struct sockaddr_in *sin = (struct sockaddr_in *) addr;  in cma_set_mgid()
4632 	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) addr;  in cma_set_mgid()
4634 	if (cma_any_addr(addr)) {  in cma_set_mgid()
4636 	} else if ((addr->sa_family == AF_INET6) &&  in cma_set_mgid()
4637 		   ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFFF0FFFF) ==  in cma_set_mgid()
4640 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_set_mgid()
4641 	} else if (addr->sa_family == AF_IB) {  in cma_set_mgid()
4642 		memcpy(mgid, &((struct sockaddr_ib *) addr)->sib_addr, sizeof *mgid);  in cma_set_mgid()
4643 	} else if (addr->sa_family == AF_INET6) {  in cma_set_mgid()
4644 		ipv6_ib_mc_map(&sin6->sin6_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4645 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4649 		ip_ib_mc_map(sin->sin_addr.s_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4650 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4660 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_join_ib_multicast()
4665 	ret = ib_sa_get_mcmember_rec(id_priv->id.device, id_priv->id.port_num,  in cma_join_ib_multicast()
4674 	cma_set_mgid(id_priv, (struct sockaddr *) &mc->addr, &rec.mgid);  in cma_join_ib_multicast()
4675 	rec.qkey = cpu_to_be32(id_priv->qkey);  in cma_join_ib_multicast()
4678 	rec.join_state = mc->join_state;  in cma_join_ib_multicast()
4686 	if (id_priv->id.ps == RDMA_PS_IPOIB)  in cma_join_ib_multicast()
4693 	mc->sa_mc = ib_sa_join_multicast(&sa_client, id_priv->id.device,  in cma_join_ib_multicast()
4694 					 id_priv->id.port_num, &rec, comp_mask,  in cma_join_ib_multicast()
4696 	return PTR_ERR_OR_ZERO(mc->sa_mc);  in cma_join_ib_multicast()
4699 static void cma_iboe_set_mgid(struct sockaddr *addr, union ib_gid *mgid,  in cma_iboe_set_mgid()  argument
4702 	struct sockaddr_in *sin = (struct sockaddr_in *)addr;  in cma_iboe_set_mgid()
4703 	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;  in cma_iboe_set_mgid()
4705 	if (cma_any_addr(addr)) {  in cma_iboe_set_mgid()
4707 	} else if (addr->sa_family == AF_INET6) {  in cma_iboe_set_mgid()
4708 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_iboe_set_mgid()
4710 		mgid->raw[0] =  in cma_iboe_set_mgid()
4712 		mgid->raw[1] =  in cma_iboe_set_mgid()
4714 		mgid->raw[2] = 0;  in cma_iboe_set_mgid()
4715 		mgid->raw[3] = 0;  in cma_iboe_set_mgid()
4716 		mgid->raw[4] = 0;  in cma_iboe_set_mgid()
4717 		mgid->raw[5] = 0;  in cma_iboe_set_mgid()
4718 		mgid->raw[6] = 0;  in cma_iboe_set_mgid()
4719 		mgid->raw[7] = 0;  in cma_iboe_set_mgid()
4720 		mgid->raw[8] = 0;  in cma_iboe_set_mgid()
4721 		mgid->raw[9] = 0;  in cma_iboe_set_mgid()
4722 		mgid->raw[10] = 0xff;  in cma_iboe_set_mgid()
4723 		mgid->raw[11] = 0xff;  in cma_iboe_set_mgid()
4724 		*(__be32 *)(&mgid->raw[12]) = sin->sin_addr.s_addr;  in cma_iboe_set_mgid()
4731 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iboe_join_multicast()
4733 	struct sockaddr *addr = (struct sockaddr *)&mc->addr;  in cma_iboe_join_multicast()  local
4739 	send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);  in cma_iboe_join_multicast()
4741 	if (cma_zero_addr(addr))  in cma_iboe_join_multicast()
4742 		return -EINVAL;  in cma_iboe_join_multicast()
4744 	gid_type = id_priv->cma_dev->default_gid_type[id_priv->id.port_num -  in cma_iboe_join_multicast()
4745 		   rdma_start_port(id_priv->cma_dev->device)];  in cma_iboe_join_multicast()
4746 	cma_iboe_set_mgid(addr, &ib.rec.mgid, gid_type);  in cma_iboe_join_multicast()
4749 	if (id_priv->id.ps == RDMA_PS_UDP)  in cma_iboe_join_multicast()
4752 	if (dev_addr->bound_dev_if)  in cma_iboe_join_multicast()
4753 		ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_iboe_join_multicast()
4755 		return -ENODEV;  in cma_iboe_join_multicast()
4759 	ib.rec.mtu = iboe_get_mtu(ndev->mtu);  in cma_iboe_join_multicast()
4761 	if (addr->sa_family == AF_INET) {  in cma_iboe_join_multicast()
4771 			err = -ENOTSUPP;  in cma_iboe_join_multicast()
4775 		return err ?: -EINVAL;  in cma_iboe_join_multicast()
4777 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_iboe_join_multicast()
4779 	INIT_WORK(&mc->iboe_join.work, cma_iboe_join_work_handler);  in cma_iboe_join_multicast()
4780 	cma_make_mc_event(0, id_priv, &ib, &mc->iboe_join.event, mc);  in cma_iboe_join_multicast()
4781 	queue_work(cma_wq, &mc->iboe_join.work);  in cma_iboe_join_multicast()
4785 int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,  in rdma_join_multicast()  argument
4794 	if (WARN_ON(id->qp))  in rdma_join_multicast()
4795 		return -EINVAL;  in rdma_join_multicast()
4798 	if (!id->device || (READ_ONCE(id_priv->state) != RDMA_CM_ADDR_BOUND &&  in rdma_join_multicast()
4799 			    READ_ONCE(id_priv->state) != RDMA_CM_ADDR_RESOLVED))  in rdma_join_multicast()
4800 		return -EINVAL;  in rdma_join_multicast()
4804 		return -ENOMEM;  in rdma_join_multicast()
4806 	memcpy(&mc->addr, addr, rdma_addr_size(addr));  in rdma_join_multicast()
4807 	mc->context = context;  in rdma_join_multicast()
4808 	mc->id_priv = id_priv;  in rdma_join_multicast()
4809 	mc->join_state = join_state;  in rdma_join_multicast()
4811 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_join_multicast()
4815 	} else if (rdma_cap_ib_mcast(id->device, id->port_num)) {  in rdma_join_multicast()
4820 		ret = -ENOSYS;  in rdma_join_multicast()
4824 	spin_lock(&id_priv->lock);  in rdma_join_multicast()
4825 	list_add(&mc->list, &id_priv->mc_list);  in rdma_join_multicast()
4826 	spin_unlock(&id_priv->lock);  in rdma_join_multicast()
4835 void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_leave_multicast()  argument
4841 	spin_lock_irq(&id_priv->lock);  in rdma_leave_multicast()
4842 	list_for_each_entry(mc, &id_priv->mc_list, list) {  in rdma_leave_multicast()
4843 		if (memcmp(&mc->addr, addr, rdma_addr_size(addr)) != 0)  in rdma_leave_multicast()
4845 		list_del(&mc->list);  in rdma_leave_multicast()
4846 		spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
4848 		WARN_ON(id_priv->cma_dev->device != id->device);  in rdma_leave_multicast()
4852 	spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
4861 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_netdev_change()
4863 	if ((dev_addr->bound_dev_if == ndev->ifindex) &&  in cma_netdev_change()
4864 	    (net_eq(dev_net(ndev), dev_addr->net)) &&  in cma_netdev_change()
4865 	    memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) {  in cma_netdev_change()
4866 		pr_info("RDMA CM addr change for ndev %s used by id %p\n",  in cma_netdev_change()
4867 			ndev->name, &id_priv->id);  in cma_netdev_change()
4870 			return -ENOMEM;  in cma_netdev_change()
4872 		INIT_WORK(&work->work, cma_work_handler);  in cma_netdev_change()
4873 		work->id = id_priv;  in cma_netdev_change()
4874 		work->event.event = RDMA_CM_EVENT_ADDR_CHANGE;  in cma_netdev_change()
4876 		queue_work(cma_wq, &work->work);  in cma_netdev_change()
4898 		list_for_each_entry(id_priv, &cma_dev->id_list, list) {  in cma_netdev_callback()
4919 	mutex_lock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4920 	/* Record that we want to remove the device */  in cma_send_device_removal_put()
4921 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_send_device_removal_put()
4922 	state = id_priv->state;  in cma_send_device_removal_put()
4924 		spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
4925 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4929 	id_priv->state = RDMA_CM_DEVICE_REMOVAL;  in cma_send_device_removal_put()
4930 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
4938 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4943 	mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4956 	while (!list_empty(&cma_dev->id_list)) {  in cma_process_remove()
4958 			&cma_dev->id_list, struct rdma_id_private, list);  in cma_process_remove()
4960 		list_del(&id_priv->listen_list);  in cma_process_remove()
4961 		list_del_init(&id_priv->list);  in cma_process_remove()
4972 	wait_for_completion(&cma_dev->comp);  in cma_process_remove()
4975 static bool cma_supported(struct ib_device *device)  in cma_supported()  argument
4979 	rdma_for_each_port(device, i) {  in cma_supported()
4980 		if (rdma_cap_ib_cm(device, i) || rdma_cap_iw_cm(device, i))  in cma_supported()
4986 static int cma_add_one(struct ib_device *device)  in cma_add_one()  argument
4995 	if (!cma_supported(device))  in cma_add_one()
4996 		return -EOPNOTSUPP;  in cma_add_one()
5000 		return -ENOMEM;  in cma_add_one()
5002 	cma_dev->device = device;  in cma_add_one()
5003 	cma_dev->default_gid_type = kcalloc(device->phys_port_cnt,  in cma_add_one()
5004 					    sizeof(*cma_dev->default_gid_type),  in cma_add_one()
5006 	if (!cma_dev->default_gid_type) {  in cma_add_one()
5007 		ret = -ENOMEM;  in cma_add_one()
5011 	cma_dev->default_roce_tos = kcalloc(device->phys_port_cnt,  in cma_add_one()
5012 					    sizeof(*cma_dev->default_roce_tos),  in cma_add_one()
5014 	if (!cma_dev->default_roce_tos) {  in cma_add_one()
5015 		ret = -ENOMEM;  in cma_add_one()
5019 	rdma_for_each_port (device, i) {  in cma_add_one()
5020 		supported_gids = roce_gid_type_mask_support(device, i);  in cma_add_one()
5023 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
5026 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
5028 		cma_dev->default_roce_tos[i - rdma_start_port(device)] = 0;  in cma_add_one()
5031 	init_completion(&cma_dev->comp);  in cma_add_one()
5032 	refcount_set(&cma_dev->refcount, 1);  in cma_add_one()
5033 	INIT_LIST_HEAD(&cma_dev->id_list);  in cma_add_one()
5034 	ib_set_client_data(device, &cma_client, cma_dev);  in cma_add_one()
5037 	list_add_tail(&cma_dev->list, &dev_list);  in cma_add_one()
5045 	trace_cm_add_one(device);  in cma_add_one()
5049 	list_del(&cma_dev->list);  in cma_add_one()
5054 	kfree(cma_dev->default_roce_tos);  in cma_add_one()
5056 	kfree(cma_dev->default_gid_type);  in cma_add_one()
5063 static void cma_remove_one(struct ib_device *device, void *client_data)  in cma_remove_one()  argument
5067 	trace_cm_remove_one(device);  in cma_remove_one()
5070 	list_del(&cma_dev->list);  in cma_remove_one()
5074 	kfree(cma_dev->default_roce_tos);  in cma_remove_one()
5075 	kfree(cma_dev->default_gid_type);  in cma_remove_one()
5083 	xa_init(&pernet->tcp_ps);  in cma_init_net()
5084 	xa_init(&pernet->udp_ps);  in cma_init_net()
5085 	xa_init(&pernet->ipoib_ps);  in cma_init_net()
5086 	xa_init(&pernet->ib_ps);  in cma_init_net()
5095 	WARN_ON(!xa_empty(&pernet->tcp_ps));  in cma_exit_net()
5096 	WARN_ON(!xa_empty(&pernet->udp_ps));  in cma_exit_net()
5097 	WARN_ON(!xa_empty(&pernet->ipoib_ps));  in cma_exit_net()
5098 	WARN_ON(!xa_empty(&pernet->ib_ps));  in cma_exit_net()
5127 		return -ENOMEM;  in cma_init()