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.
64 	[RDMA_CM_EVENT_DEVICE_REMOVAL]	 = "device removal",
83 const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,  in rdma_reject_msg()  argument
86 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_reject_msg()
89 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_reject_msg()
98  * rdma_is_consumer_reject - return true if the consumer rejected the connect
100  * @id: Communication identifier that received the REJECT event.
103 static bool rdma_is_consumer_reject(struct rdma_cm_id *id, int reason)  in rdma_is_consumer_reject()  argument
105 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_is_consumer_reject()
108 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_is_consumer_reject()
109 		return reason == -ECONNREFUSED;  in rdma_is_consumer_reject()
115 const void *rdma_consumer_reject_data(struct rdma_cm_id *id,  in rdma_consumer_reject_data()  argument
120 	if (rdma_is_consumer_reject(id, ev->status)) {  in rdma_consumer_reject_data()
121 		*data_len = ev->param.conn.private_data_len;  in rdma_consumer_reject_data()
122 		p = ev->param.conn.private_data;  in rdma_consumer_reject_data()
132  * rdma_iw_cm_id() - return the iw_cm_id pointer for this cm_id.
133  * @id: Communication Identifier
135 struct iw_cm_id *rdma_iw_cm_id(struct rdma_cm_id *id)  in rdma_iw_cm_id()  argument
139 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_iw_cm_id()
140 	if (id->device->node_type == RDMA_NODE_RNIC)  in rdma_iw_cm_id()
141 		return id_priv->cm_id.iw;  in rdma_iw_cm_id()
147  * rdma_res_to_id() - return the rdma_cm_id pointer for this restrack.
155 	return &id_priv->id;  in rdma_res_to_id()
159 static int cma_add_one(struct ib_device *device);
160 static void cma_remove_one(struct ib_device *device, void *client_data);
194 		return &pernet->tcp_ps;  in cma_pernet_xa()
196 		return &pernet->udp_ps;  in cma_pernet_xa()
198 		return &pernet->ipoib_ps;  in cma_pernet_xa()
200 		return &pernet->ib_ps;  in cma_pernet_xa()
208 	struct ib_device	*device;  member
224 	struct ib_device		*device;  member
260 	refcount_inc(&cma_dev->refcount);  in cma_dev_get()
265 	if (refcount_dec_and_test(&cma_dev->refcount))  in cma_dev_put()
266 		complete(&cma_dev->comp);  in cma_dev_put()
278 		if (filter(cma_dev->device, cookie)) {  in cma_enum_devices_by_ibdev()
292 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_gid_type()
293 		return -EINVAL;  in cma_get_default_gid_type()
295 	return cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)];  in cma_get_default_gid_type()
304 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_gid_type()
305 		return -EINVAL;  in cma_set_default_gid_type()
308 	    rdma_protocol_roce_eth_encap(cma_dev->device, port))  in cma_set_default_gid_type()
311 	supported_gids = roce_gid_type_mask_support(cma_dev->device, port);  in cma_set_default_gid_type()
314 		return -EINVAL;  in cma_set_default_gid_type()
316 	cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_gid_type()
324 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_roce_tos()
325 		return -EINVAL;  in cma_get_default_roce_tos()
327 	return cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)];  in cma_get_default_roce_tos()
333 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_roce_tos()
334 		return -EINVAL;  in cma_set_default_roce_tos()
336 	cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_roce_tos()
343 	return cma_dev->device;  in cma_get_ib_dev()
347  * Device removal can occur at anytime, so we need extra handling to
348  * serialize notifying the user of device removal with other callbacks.
364 	struct rdma_id_private	*id;  member
391 	struct ib_device *device;  member
412 		lockdep_assert_held(&id_priv->handler_mutex);  in cma_comp_exch()
414 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_comp_exch()
415 	if ((ret = (id_priv->state == comp)))  in cma_comp_exch()
416 		id_priv->state = exch;  in cma_comp_exch()
417 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_comp_exch()
423 	return hdr->ip_version >> 4;  in cma_get_ip_ver()
428 	hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF);  in cma_set_ip_ver()
441 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
444 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
448 	return (in_dev) ? 0 : -ENODEV;  in cma_igmp_send()
455 	id_priv->cma_dev = cma_dev;  in _cma_attach_to_dev()
456 	id_priv->id.device = cma_dev->device;  in _cma_attach_to_dev()
457 	id_priv->id.route.addr.dev_addr.transport =  in _cma_attach_to_dev()
458 		rdma_node_get_transport(cma_dev->device->node_type);  in _cma_attach_to_dev()
459 	list_add_tail(&id_priv->list, &cma_dev->id_list);  in _cma_attach_to_dev()
460 	rdma_restrack_add(&id_priv->res);  in _cma_attach_to_dev()
462 	trace_cm_id_attach(id_priv, cma_dev->device);  in _cma_attach_to_dev()
469 	id_priv->gid_type =  in cma_attach_to_dev()
470 		cma_dev->default_gid_type[id_priv->id.port_num -  in cma_attach_to_dev()
471 					  rdma_start_port(cma_dev->device)];  in cma_attach_to_dev()
477 	list_del(&id_priv->list);  in cma_release_dev()
478 	cma_dev_put(id_priv->cma_dev);  in cma_release_dev()
479 	id_priv->cma_dev = NULL;  in cma_release_dev()
485 	return (struct sockaddr *) &id_priv->id.route.addr.src_addr;  in cma_src_addr()
490 	return (struct sockaddr *) &id_priv->id.route.addr.dst_addr;  in cma_dst_addr()
495 	return id_priv->id.route.addr.src_addr.ss_family;  in cma_family()
503 	if (id_priv->qkey) {  in cma_set_qkey()
504 		if (qkey && id_priv->qkey != qkey)  in cma_set_qkey()
505 			return -EINVAL;  in cma_set_qkey()
510 		id_priv->qkey = qkey;  in cma_set_qkey()
514 	switch (id_priv->id.ps) {  in cma_set_qkey()
517 		id_priv->qkey = RDMA_UDP_QKEY;  in cma_set_qkey()
520 		ib_addr_get_mgid(&id_priv->id.route.addr.dev_addr, &rec.mgid);  in cma_set_qkey()
521 		ret = ib_sa_get_mcmember_rec(id_priv->id.device,  in cma_set_qkey()
522 					     id_priv->id.port_num, &rec.mgid,  in cma_set_qkey()
525 			id_priv->qkey = be32_to_cpu(rec.qkey);  in cma_set_qkey()
535 	dev_addr->dev_type = ARPHRD_INFINIBAND;  in cma_translate_ib()
536 	rdma_addr_set_sgid(dev_addr, (union ib_gid *) &sib->sib_addr);  in cma_translate_ib()
537 	ib_addr_set_pkey(dev_addr, ntohs(sib->sib_pkey));  in cma_translate_ib()
544 	if (addr->sa_family != AF_IB) {  in cma_translate_addr()
555 cma_validate_port(struct ib_device *device, u8 port,  in cma_validate_port()  argument
560 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_validate_port()
561 	int bound_if_index = dev_addr->bound_dev_if;  in cma_validate_port()
563 	int dev_type = dev_addr->dev_type;  in cma_validate_port()
566 	if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))  in cma_validate_port()
567 		return ERR_PTR(-ENODEV);  in cma_validate_port()
569 	if ((dev_type == ARPHRD_INFINIBAND) && !rdma_protocol_ib(device, port))  in cma_validate_port()
570 		return ERR_PTR(-ENODEV);  in cma_validate_port()
572 	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))  in cma_validate_port()
573 		return ERR_PTR(-ENODEV);  in cma_validate_port()
575 	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {  in cma_validate_port()
576 		ndev = dev_get_by_index(dev_addr->net, bound_if_index);  in cma_validate_port()
578 			return ERR_PTR(-ENODEV);  in cma_validate_port()
583 	sgid_attr = rdma_find_gid_by_port(device, gid, gid_type, port, ndev);  in cma_validate_port()
592 	WARN_ON(id_priv->id.route.addr.dev_addr.sgid_attr);  in cma_bind_sgid_attr()
593 	id_priv->id.route.addr.dev_addr.sgid_attr = sgid_attr;  in cma_bind_sgid_attr()
597  * cma_acquire_dev_by_src_ip - Acquire cma device, port, gid attribute
599  * @id_priv:	cm_id which should be bound to cma device
601  * cma_acquire_dev_by_src_ip() binds cm id to cma device, port and GID attribute
607 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_acquire_dev_by_src_ip()
612 	int ret = -ENODEV;  in cma_acquire_dev_by_src_ip()
615 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_acquire_dev_by_src_ip()
616 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_acquire_dev_by_src_ip()
617 		return -EINVAL;  in cma_acquire_dev_by_src_ip()
619 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_acquire_dev_by_src_ip()
622 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_acquire_dev_by_src_ip()
627 		rdma_for_each_port (cma_dev->device, port) {  in cma_acquire_dev_by_src_ip()
628 			gidp = rdma_protocol_roce(cma_dev->device, port) ?  in cma_acquire_dev_by_src_ip()
630 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_acquire_dev_by_src_ip()
631 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_acquire_dev_by_src_ip()
634 				id_priv->id.port_num = port;  in cma_acquire_dev_by_src_ip()
648  * cma_ib_acquire_dev - Acquire cma device, port and SGID attribute
649  * @id_priv:		cm id to bind to cma device
650  * @listen_id_priv:	listener cm id to match against
653  * cma_ib_acquire_dev() acquires cma device, port and SGID attribute when
654  * rdma device matches for listen_id and incoming request. It also verifies
662 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_acquire_dev()
667 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_ib_acquire_dev()
668 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_ib_acquire_dev()
669 		return -EINVAL;  in cma_ib_acquire_dev()
671 	if (rdma_protocol_roce(req->device, req->port))  in cma_ib_acquire_dev()
672 		rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_ib_acquire_dev()
675 		memcpy(&gid, dev_addr->src_dev_addr +  in cma_ib_acquire_dev()
678 	gid_type = listen_id_priv->cma_dev->default_gid_type[req->port - 1];  in cma_ib_acquire_dev()
679 	sgid_attr = cma_validate_port(req->device, req->port,  in cma_ib_acquire_dev()
684 	id_priv->id.port_num = req->port;  in cma_ib_acquire_dev()
687 	 * of cma_dev->id_list such as cma_netdev_callback() and  in cma_ib_acquire_dev()
691 	cma_attach_to_dev(id_priv, listen_id_priv->cma_dev);  in cma_ib_acquire_dev()
699 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iw_acquire_dev()
703 	int ret = -ENODEV;  in cma_iw_acquire_dev()
707 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_iw_acquire_dev()
708 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_iw_acquire_dev()
709 		return -EINVAL;  in cma_iw_acquire_dev()
711 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_iw_acquire_dev()
716 	cma_dev = listen_id_priv->cma_dev;  in cma_iw_acquire_dev()
717 	port = listen_id_priv->id.port_num;  in cma_iw_acquire_dev()
718 	gid_type = listen_id_priv->gid_type;  in cma_iw_acquire_dev()
719 	sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
722 		id_priv->id.port_num = port;  in cma_iw_acquire_dev()
729 		rdma_for_each_port (cma_dev->device, port) {  in cma_iw_acquire_dev()
730 			if (listen_id_priv->cma_dev == cma_dev &&  in cma_iw_acquire_dev()
731 			    listen_id_priv->id.port_num == port)  in cma_iw_acquire_dev()
734 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_iw_acquire_dev()
735 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
738 				id_priv->id.port_num = port;  in cma_iw_acquire_dev()
755  * Select the source IB device and address to reach the destination IB address.
769 	dgid = (union ib_gid *) &addr->sib_addr;  in cma_resolve_ib_dev()
770 	pkey = ntohs(addr->sib_pkey);  in cma_resolve_ib_dev()
774 		rdma_for_each_port (cur_dev->device, p) {  in cma_resolve_ib_dev()
775 			if (!rdma_cap_af_ib(cur_dev->device, p))  in cma_resolve_ib_dev()
778 			if (ib_find_cached_pkey(cur_dev->device, p, pkey, &index))  in cma_resolve_ib_dev()
781 			if (ib_get_cached_port_state(cur_dev->device, p, &port_state))  in cma_resolve_ib_dev()
783 			for (i = 0; !rdma_query_gid(cur_dev->device,  in cma_resolve_ib_dev()
789 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
794 				    dgid->global.subnet_prefix) &&  in cma_resolve_ib_dev()
798 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
805 	return -ENODEV;  in cma_resolve_ib_dev()
811 	memcpy(&addr->sib_addr, &sgid, sizeof(sgid));  in cma_resolve_ib_dev()
812 	cma_translate_ib(addr, &id_priv->id.route.addr.dev_addr);  in cma_resolve_ib_dev()
818 	refcount_inc(&id_priv->refcount);  in cma_id_get()
823 	if (refcount_dec_and_test(&id_priv->refcount))  in cma_id_put()
824 		complete(&id_priv->comp);  in cma_id_put()
836 		return ERR_PTR(-ENOMEM);  in __rdma_create_id()
838 	id_priv->state = RDMA_CM_IDLE;  in __rdma_create_id()
839 	id_priv->id.context = context;  in __rdma_create_id()
840 	id_priv->id.event_handler = event_handler;  in __rdma_create_id()
841 	id_priv->id.ps = ps;  in __rdma_create_id()
842 	id_priv->id.qp_type = qp_type;  in __rdma_create_id()
843 	id_priv->tos_set = false;  in __rdma_create_id()
844 	id_priv->timeout_set = false;  in __rdma_create_id()
845 	id_priv->gid_type = IB_GID_TYPE_IB;  in __rdma_create_id()
846 	spin_lock_init(&id_priv->lock);  in __rdma_create_id()
847 	mutex_init(&id_priv->qp_mutex);  in __rdma_create_id()
848 	init_completion(&id_priv->comp);  in __rdma_create_id()
849 	refcount_set(&id_priv->refcount, 1);  in __rdma_create_id()
850 	mutex_init(&id_priv->handler_mutex);  in __rdma_create_id()
851 	INIT_LIST_HEAD(&id_priv->listen_list);  in __rdma_create_id()
852 	INIT_LIST_HEAD(&id_priv->mc_list);  in __rdma_create_id()
853 	get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);  in __rdma_create_id()
854 	id_priv->id.route.addr.dev_addr.net = get_net(net);  in __rdma_create_id()
855 	id_priv->seq_num &= 0x00ffffff;  in __rdma_create_id()
857 	rdma_restrack_new(&id_priv->res, RDMA_RESTRACK_CM_ID);  in __rdma_create_id()
859 		rdma_restrack_parent_name(&id_priv->res, &parent->res);  in __rdma_create_id()
875 	rdma_restrack_set_name(&ret->res, caller);  in __rdma_create_kernel_id()
876 	return &ret->id;  in __rdma_create_kernel_id()
887 	ret = __rdma_create_id(current->nsproxy->net_ns, event_handler, context,  in rdma_create_user_id()
892 	rdma_restrack_set_name(&ret->res, NULL);  in rdma_create_user_id()
893 	return &ret->id;  in rdma_create_user_id()
903 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_ud_qp()
929 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_conn_qp()
936 int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,  in rdma_create_qp()  argument
943 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_create_qp()
944 	if (id->device != pd->device) {  in rdma_create_qp()
945 		ret = -EINVAL;  in rdma_create_qp()
949 	qp_init_attr->port_num = id->port_num;  in rdma_create_qp()
956 	if (id->qp_type == IB_QPT_UD)  in rdma_create_qp()
963 	id->qp = qp;  in rdma_create_qp()
964 	id_priv->qp_num = qp->qp_num;  in rdma_create_qp()
965 	id_priv->srq = (qp->srq != NULL);  in rdma_create_qp()
976 void rdma_destroy_qp(struct rdma_cm_id *id)  in rdma_destroy_qp()  argument
980 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_destroy_qp()
982 	mutex_lock(&id_priv->qp_mutex);  in rdma_destroy_qp()
983 	ib_destroy_qp(id_priv->id.qp);  in rdma_destroy_qp()
984 	id_priv->id.qp = NULL;  in rdma_destroy_qp()
985 	mutex_unlock(&id_priv->qp_mutex);  in rdma_destroy_qp()
995 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
996 	if (!id_priv->id.qp) {  in cma_modify_qp_rtr()
1003 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1007 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1012 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1016 	BUG_ON(id_priv->cma_dev->device != id_priv->id.device);  in cma_modify_qp_rtr()
1019 		qp_attr.max_dest_rd_atomic = conn_param->responder_resources;  in cma_modify_qp_rtr()
1020 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1022 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
1032 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1033 	if (!id_priv->id.qp) {  in cma_modify_qp_rts()
1039 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rts()
1044 		qp_attr.max_rd_atomic = conn_param->initiator_depth;  in cma_modify_qp_rts()
1045 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rts()
1047 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1056 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1057 	if (!id_priv->id.qp) {  in cma_modify_qp_err()
1063 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, IB_QP_STATE);  in cma_modify_qp_err()
1065 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1072 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_init_qp_attr()
1076 	if (rdma_cap_eth_ah(id_priv->id.device, id_priv->id.port_num))  in cma_ib_init_qp_attr()
1081 	ret = ib_find_cached_pkey(id_priv->id.device, id_priv->id.port_num,  in cma_ib_init_qp_attr()
1082 				  pkey, &qp_attr->pkey_index);  in cma_ib_init_qp_attr()
1086 	qp_attr->port_num = id_priv->id.port_num;  in cma_ib_init_qp_attr()
1089 	if (id_priv->id.qp_type == IB_QPT_UD) {  in cma_ib_init_qp_attr()
1094 		qp_attr->qkey = id_priv->qkey;  in cma_ib_init_qp_attr()
1097 		qp_attr->qp_access_flags = 0;  in cma_ib_init_qp_attr()
1103 int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,  in rdma_init_qp_attr()  argument
1109 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_init_qp_attr()
1110 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1111 		if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))  in rdma_init_qp_attr()
1114 			ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,  in rdma_init_qp_attr()
1117 		if (qp_attr->qp_state == IB_QPS_RTR)  in rdma_init_qp_attr()
1118 			qp_attr->rq_psn = id_priv->seq_num;  in rdma_init_qp_attr()
1119 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1120 		if (!id_priv->cm_id.iw) {  in rdma_init_qp_attr()
1121 			qp_attr->qp_access_flags = 0;  in rdma_init_qp_attr()
1124 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,  in rdma_init_qp_attr()
1126 		qp_attr->port_num = id_priv->id.port_num;  in rdma_init_qp_attr()
1129 		ret = -ENOSYS;  in rdma_init_qp_attr()
1131 	if ((*qp_attr_mask & IB_QP_TIMEOUT) && id_priv->timeout_set)  in rdma_init_qp_attr()
1132 		qp_attr->timeout = id_priv->timeout;  in rdma_init_qp_attr()
1140 	switch (addr->sa_family) {  in cma_zero_addr()
1142 		return ipv4_is_zeronet(((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_zero_addr()
1144 		return ipv6_addr_any(&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_zero_addr()
1146 		return ib_addr_any(&((struct sockaddr_ib *)addr)->sib_addr);  in cma_zero_addr()
1154 	switch (addr->sa_family) {  in cma_loopback_addr()
1157 			((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_loopback_addr()
1160 			&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_loopback_addr()
1163 			&((struct sockaddr_ib *)addr)->sib_addr);  in cma_loopback_addr()
1176 	if (src->sa_family != dst->sa_family)  in cma_addr_cmp()
1177 		return -1;  in cma_addr_cmp()
1179 	switch (src->sa_family) {  in cma_addr_cmp()
1181 		return ((struct sockaddr_in *)src)->sin_addr.s_addr !=  in cma_addr_cmp()
1182 		       ((struct sockaddr_in *)dst)->sin_addr.s_addr;  in cma_addr_cmp()
1188 		if (ipv6_addr_cmp(&src_addr6->sin6_addr,  in cma_addr_cmp()
1189 					  &dst_addr6->sin6_addr))  in cma_addr_cmp()
1191 		link_local = ipv6_addr_type(&dst_addr6->sin6_addr) &  in cma_addr_cmp()
1194 		return link_local ? (src_addr6->sin6_scope_id !=  in cma_addr_cmp()
1195 				     dst_addr6->sin6_scope_id) :  in cma_addr_cmp()
1200 		return ib_addr_cmp(&((struct sockaddr_ib *) src)->sib_addr,  in cma_addr_cmp()
1201 				   &((struct sockaddr_ib *) dst)->sib_addr);  in cma_addr_cmp()
1209 	switch (addr->sa_family) {  in cma_port()
1211 		return ((struct sockaddr_in *) addr)->sin_port;  in cma_port()
1213 		return ((struct sockaddr_in6 *) addr)->sin6_port;  in cma_port()
1216 		return htons((u16) (be64_to_cpu(sib->sib_sid) &  in cma_port()
1217 				    be64_to_cpu(sib->sib_sid_mask)));  in cma_port()
1235 	listen_ib = (struct sockaddr_ib *) &listen_id->route.addr.src_addr;  in cma_save_ib_info()
1238 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1240 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1241 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1242 			memcpy(&ib->sib_addr, &path->sgid, 16);  in cma_save_ib_info()
1243 			ib->sib_sid = path->service_id;  in cma_save_ib_info()
1244 			ib->sib_scope_id = 0;  in cma_save_ib_info()
1246 			ib->sib_pkey = listen_ib->sib_pkey;  in cma_save_ib_info()
1247 			ib->sib_flowinfo = listen_ib->sib_flowinfo;  in cma_save_ib_info()
1248 			ib->sib_addr = listen_ib->sib_addr;  in cma_save_ib_info()
1249 			ib->sib_sid = listen_ib->sib_sid;  in cma_save_ib_info()
1250 			ib->sib_scope_id = listen_ib->sib_scope_id;  in cma_save_ib_info()
1252 		ib->sib_sid_mask = cpu_to_be64(0xffffffffffffffffULL);  in cma_save_ib_info()
1256 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1258 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1259 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1260 			memcpy(&ib->sib_addr, &path->dgid, 16);  in cma_save_ib_info()
1273 			.sin_addr.s_addr = hdr->dst_addr.ip4.addr,  in cma_save_ip4_info()
1281 			.sin_addr.s_addr = hdr->src_addr.ip4.addr,  in cma_save_ip4_info()
1282 			.sin_port = hdr->port,  in cma_save_ip4_info()
1295 			.sin6_addr = hdr->dst_addr.ip6,  in cma_save_ip6_info()
1303 			.sin6_addr = hdr->src_addr.ip6,  in cma_save_ip6_info()
1304 			.sin6_port = hdr->port,  in cma_save_ip6_info()
1322 	hdr = ib_event->private_data;  in cma_save_ip_info()
1323 	if (hdr->cma_version != CMA_VERSION)  in cma_save_ip_info()
1324 		return -EINVAL;  in cma_save_ip_info()
1338 		return -EAFNOSUPPORT;  in cma_save_ip_info()
1351 		if (ib_event->event == IB_CM_REQ_RECEIVED)  in cma_save_net_info()
1353 					 ib_event->param.req_rcvd.primary_path);  in cma_save_net_info()
1354 		else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in cma_save_net_info()
1366 		&ib_event->param.req_rcvd;  in cma_save_req_info()
1368 		&ib_event->param.sidr_req_rcvd;  in cma_save_req_info()
1370 	switch (ib_event->event) {  in cma_save_req_info()
1372 		req->device	= req_param->listen_id->device;  in cma_save_req_info()
1373 		req->port	= req_param->port;  in cma_save_req_info()
1374 		memcpy(&req->local_gid, &req_param->primary_path->sgid,  in cma_save_req_info()
1375 		       sizeof(req->local_gid));  in cma_save_req_info()
1376 		req->has_gid	= true;  in cma_save_req_info()
1377 		req->service_id = req_param->primary_path->service_id;  in cma_save_req_info()
1378 		req->pkey	= be16_to_cpu(req_param->primary_path->pkey);  in cma_save_req_info()
1379 		if (req->pkey != req_param->bth_pkey)  in cma_save_req_info()
1382 					    req_param->bth_pkey, req->pkey);  in cma_save_req_info()
1385 		req->device	= sidr_param->listen_id->device;  in cma_save_req_info()
1386 		req->port	= sidr_param->port;  in cma_save_req_info()
1387 		req->has_gid	= false;  in cma_save_req_info()
1388 		req->service_id	= sidr_param->service_id;  in cma_save_req_info()
1389 		req->pkey	= sidr_param->pkey;  in cma_save_req_info()
1390 		if (req->pkey != sidr_param->bth_pkey)  in cma_save_req_info()
1393 					    sidr_param->bth_pkey, req->pkey);  in cma_save_req_info()
1396 		return -EINVAL;  in cma_save_req_info()
1406 	__be32 daddr = dst_addr->sin_addr.s_addr,  in validate_ipv4_net_dev()
1407 	       saddr = src_addr->sin_addr.s_addr;  in validate_ipv4_net_dev()
1420 	fl4.flowi4_iif = net_dev->ifindex;  in validate_ipv4_net_dev()
1437 	const int strict = ipv6_addr_type(&dst_addr->sin6_addr) &  in validate_ipv6_net_dev()
1439 	struct rt6_info *rt = rt6_lookup(dev_net(net_dev), &dst_addr->sin6_addr,  in validate_ipv6_net_dev()
1440 					 &src_addr->sin6_addr, net_dev->ifindex,  in validate_ipv6_net_dev()
1447 	ret = rt->rt6i_idev->dev == net_dev;  in validate_ipv6_net_dev()
1465 	switch (daddr->sa_family) {  in validate_net_dev()
1467 		return saddr->sa_family == AF_INET &&  in validate_net_dev()
1471 		return saddr->sa_family == AF_INET6 &&  in validate_net_dev()
1485 	if (ib_event->event == IB_CM_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1486 		sgid_attr = ib_event->param.req_rcvd.ppath_sgid_attr;  in roce_get_net_dev_by_cm_event()
1487 	else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1488 		sgid_attr = ib_event->param.sidr_req_rcvd.sgid_attr;  in roce_get_net_dev_by_cm_event()
1507 			(struct sockaddr *)&req->listen_addr_storage;  in cma_get_net_dev()
1508 	struct sockaddr *src_addr = (struct sockaddr *)&req->src_addr_storage;  in cma_get_net_dev()
1510 	const union ib_gid *gid = req->has_gid ? &req->local_gid : NULL;  in cma_get_net_dev()
1514 			       req->service_id);  in cma_get_net_dev()
1518 	if (rdma_protocol_roce(req->device, req->port))  in cma_get_net_dev()
1521 		net_dev = ib_get_net_dev_by_params(req->device, req->port,  in cma_get_net_dev()
1522 						   req->pkey,  in cma_get_net_dev()
1525 		return ERR_PTR(-ENODEV);  in cma_get_net_dev()
1542 	if (cma_any_addr(addr) && !id_priv->afonly)  in cma_match_private_data()
1545 	switch (addr->sa_family) {  in cma_match_private_data()
1547 		ip4_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr;  in cma_match_private_data()
1551 		    hdr->dst_addr.ip4.addr != ip4_addr)  in cma_match_private_data()
1555 		ip6_addr = ((struct sockaddr_in6 *)addr)->sin6_addr;  in cma_match_private_data()
1559 		    memcmp(&hdr->dst_addr.ip6, &ip6_addr, sizeof(ip6_addr)))  in cma_match_private_data()
1571 static bool cma_protocol_roce(const struct rdma_cm_id *id)  in cma_protocol_roce()  argument
1573 	struct ib_device *device = id->device;  in cma_protocol_roce()  local
1574 	const int port_num = id->port_num ?: rdma_start_port(device);  in cma_protocol_roce()
1576 	return rdma_protocol_roce(device, port_num);  in cma_protocol_roce()
1582 			(const struct sockaddr *)&req->listen_addr_storage;  in cma_is_req_ipv6_ll()
1586 	return (daddr->sa_family == AF_INET6 &&  in cma_is_req_ipv6_ll()
1587 		(ipv6_addr_type(&daddr6->sin6_addr) & IPV6_ADDR_LINKLOCAL));  in cma_is_req_ipv6_ll()
1590 static bool cma_match_net_dev(const struct rdma_cm_id *id,  in cma_match_net_dev()  argument
1594 	const struct rdma_addr *addr = &id->route.addr;  in cma_match_net_dev()
1598 		return (!id->port_num || id->port_num == req->port) &&  in cma_match_net_dev()
1599 		       (addr->src_addr.ss_family == AF_IB);  in cma_match_net_dev()
1603 	 * request to any netdevice of the one or multiport rdma device.  in cma_match_net_dev()
1611 	if (net_eq(dev_net(net_dev), addr->dev_addr.net) &&  in cma_match_net_dev()
1612 	    (!!addr->dev_addr.bound_dev_if ==  in cma_match_net_dev()
1613 	     (addr->dev_addr.bound_dev_if == net_dev->ifindex)))  in cma_match_net_dev()
1631 		return ERR_PTR(-EINVAL);  in cma_find_listener()
1633 	hlist_for_each_entry(id_priv, &bind_list->owners, node) {  in cma_find_listener()
1634 		if (cma_match_private_data(id_priv, ib_event->private_data)) {  in cma_find_listener()
1635 			if (id_priv->id.device == cm_id->device &&  in cma_find_listener()
1636 			    cma_match_net_dev(&id_priv->id, net_dev, req))  in cma_find_listener()
1639 					    &id_priv->listen_list,  in cma_find_listener()
1641 				if (id_priv_dev->id.device == cm_id->device &&  in cma_find_listener()
1642 				    cma_match_net_dev(&id_priv_dev->id,  in cma_find_listener()
1649 	return ERR_PTR(-EINVAL);  in cma_find_listener()
1668 		if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) {  in cma_ib_id_from_event()
1685 	 * If the device state is not IFF_UP, its properties such as ifindex  in cma_ib_id_from_event()
1688 	 * ongoing operations on net device after device is closed using  in cma_ib_id_from_event()
1699 		if (((*net_dev)->flags & IFF_UP) == 0) {  in cma_ib_id_from_event()
1700 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1705 				 (struct sockaddr *)&req->listen_addr_storage,  in cma_ib_id_from_event()
1706 				 (struct sockaddr *)&req->src_addr_storage)) {  in cma_ib_id_from_event()
1707 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1713 				rdma_ps_from_service_id(req->service_id),  in cma_ib_id_from_event()
1714 				cma_port_from_service_id(req->service_id));  in cma_ib_id_from_event()
1733 	if (rdma_cap_ib_sa(id_priv->id.device, id_priv->id.port_num)) {  in cma_cancel_route()
1734 		if (id_priv->query)  in cma_cancel_route()
1735 			ib_sa_cancel_query(id_priv->query_id, id_priv->query);  in cma_cancel_route()
1748 	list_del(&id_priv->list);  in cma_cancel_listens()
1750 	while (!list_empty(&id_priv->listen_list)) {  in cma_cancel_listens()
1751 		dev_id_priv = list_entry(id_priv->listen_list.next,  in cma_cancel_listens()
1753 		/* sync with device removal to avoid duplicate destruction */  in cma_cancel_listens()
1754 		list_del_init(&dev_id_priv->list);  in cma_cancel_listens()
1755 		list_del(&dev_id_priv->listen_list);  in cma_cancel_listens()
1758 		rdma_destroy_id(&dev_id_priv->id);  in cma_cancel_listens()
1769 		rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);  in cma_cancel_operation()
1775 		if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)  in cma_cancel_operation()
1785 	struct rdma_bind_list *bind_list = id_priv->bind_list;  in cma_release_port()
1786 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_release_port()
1792 	hlist_del(&id_priv->node);  in cma_release_port()
1793 	if (hlist_empty(&bind_list->owners)) {  in cma_release_port()
1794 		cma_ps_remove(net, bind_list->ps, bind_list->port);  in cma_release_port()
1803 	if (rdma_cap_ib_mcast(id_priv->id.device, id_priv->id.port_num))  in destroy_mc()
1804 		ib_sa_free_multicast(mc->sa_mc);  in destroy_mc()
1806 	if (rdma_protocol_roce(id_priv->id.device, id_priv->id.port_num)) {  in destroy_mc()
1808 			&id_priv->id.route.addr.dev_addr;  in destroy_mc()
1811 		if (dev_addr->bound_dev_if)  in destroy_mc()
1812 			ndev = dev_get_by_index(dev_addr->net,  in destroy_mc()
1813 						dev_addr->bound_dev_if);  in destroy_mc()
1817 			cma_set_mgid(id_priv, (struct sockaddr *)&mc->addr,  in destroy_mc()
1830 	while (!list_empty(&id_priv->mc_list)) {  in cma_leave_mc_groups()
1831 		mc = list_first_entry(&id_priv->mc_list, struct cma_multicast,  in cma_leave_mc_groups()
1833 		list_del(&mc->list);  in cma_leave_mc_groups()
1843 	if (id_priv->cma_dev) {  in _destroy_id()
1844 		if (rdma_cap_ib_cm(id_priv->id.device, 1)) {  in _destroy_id()
1845 			if (id_priv->cm_id.ib)  in _destroy_id()
1846 				ib_destroy_cm_id(id_priv->cm_id.ib);  in _destroy_id()
1847 		} else if (rdma_cap_iw_cm(id_priv->id.device, 1)) {  in _destroy_id()
1848 			if (id_priv->cm_id.iw)  in _destroy_id()
1849 				iw_destroy_cm_id(id_priv->cm_id.iw);  in _destroy_id()
1857 	wait_for_completion(&id_priv->comp);  in _destroy_id()
1859 	if (id_priv->internal_id)  in _destroy_id()
1860 		cma_id_put(id_priv->id.context);  in _destroy_id()
1862 	kfree(id_priv->id.route.path_rec);  in _destroy_id()
1864 	if (id_priv->id.route.addr.dev_addr.sgid_attr)  in _destroy_id()
1865 		rdma_put_gid_attr(id_priv->id.route.addr.dev_addr.sgid_attr);  in _destroy_id()
1867 	put_net(id_priv->id.route.addr.dev_addr.net);  in _destroy_id()
1868 	rdma_restrack_del(&id_priv->res);  in _destroy_id()
1873  * destroy an ID from within the handler_mutex. This ensures that no other
1877 	__releases(&idprv->handler_mutex)  in destroy_id_handler_unlock()
1890 	lockdep_assert_held(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
1891 	spin_lock_irqsave(&id_priv->lock, flags);  in destroy_id_handler_unlock()
1892 	state = id_priv->state;  in destroy_id_handler_unlock()
1893 	id_priv->state = RDMA_CM_DESTROYING;  in destroy_id_handler_unlock()
1894 	spin_unlock_irqrestore(&id_priv->lock, flags);  in destroy_id_handler_unlock()
1895 	mutex_unlock(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
1899 void rdma_destroy_id(struct rdma_cm_id *id)  in rdma_destroy_id()  argument
1902 		container_of(id, struct rdma_id_private, id);  in rdma_destroy_id()
1904 	mutex_lock(&id_priv->handler_mutex);  in rdma_destroy_id()
1922 	ret = ib_send_cm_rtu(id_priv->cm_id.ib, NULL, 0);  in cma_rep_recv()
1931 	ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,  in cma_rep_recv()
1940 	event->param.conn.private_data = private_data;  in cma_set_rep_event_data()
1941 	event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;  in cma_set_rep_event_data()
1942 	event->param.conn.responder_resources = rep_data->responder_resources;  in cma_set_rep_event_data()
1943 	event->param.conn.initiator_depth = rep_data->initiator_depth;  in cma_set_rep_event_data()
1944 	event->param.conn.flow_control = rep_data->flow_control;  in cma_set_rep_event_data()
1945 	event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;  in cma_set_rep_event_data()
1946 	event->param.conn.srq = rep_data->srq;  in cma_set_rep_event_data()
1947 	event->param.conn.qp_num = rep_data->remote_qpn;  in cma_set_rep_event_data()
1949 	event->ece.vendor_id = rep_data->ece.vendor_id;  in cma_set_rep_event_data()
1950 	event->ece.attr_mod = rep_data->ece.attr_mod;  in cma_set_rep_event_data()
1958 	lockdep_assert_held(&id_priv->handler_mutex);  in cma_cm_event_handler()
1961 	ret = id_priv->id.event_handler(&id_priv->id, event);  in cma_cm_event_handler()
1969 	struct rdma_id_private *id_priv = cm_id->context;  in cma_ib_handler()
1974 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_handler()
1975 	state = READ_ONCE(id_priv->state);  in cma_ib_handler()
1976 	if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
1978 	    (ib_event->event == IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
1982 	switch (ib_event->event) {  in cma_ib_handler()
1986 		event.status = -ETIMEDOUT;  in cma_ib_handler()
1990 		    (id_priv->id.qp_type != IB_QPT_UD)) {  in cma_ib_handler()
1994 		if (id_priv->id.qp) {  in cma_ib_handler()
2001 		cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,  in cma_ib_handler()
2002 				       ib_event->private_data);  in cma_ib_handler()
2009 		event.status = -ETIMEDOUT;  in cma_ib_handler()
2025 		pr_debug_ratelimited("RDMA CM: REJECTED: %s\n", rdma_reject_msg(&id_priv->id,  in cma_ib_handler()
2026 										ib_event->param.rej_rcvd.reason));  in cma_ib_handler()
2028 		event.status = ib_event->param.rej_rcvd.reason;  in cma_ib_handler()
2030 		event.param.conn.private_data = ib_event->private_data;  in cma_ib_handler()
2035 		       ib_event->event);  in cma_ib_handler()
2041 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_handler()
2042 		id_priv->cm_id.ib = NULL;  in cma_ib_handler()
2047 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_handler()
2058 	struct rdma_cm_id *id;  in cma_ib_new_conn_id()  local
2060 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_conn_id()
2061 	struct sa_path_rec *path = ib_event->param.req_rcvd.primary_path;  in cma_ib_new_conn_id()
2063 		ib_event->param.req_rcvd.primary_path->service_id;  in cma_ib_new_conn_id()
2066 	listen_id_priv = container_of(listen_id, struct rdma_id_private, id);  in cma_ib_new_conn_id()
2067 	id_priv = __rdma_create_id(listen_id->route.addr.dev_addr.net,  in cma_ib_new_conn_id()
2068 				   listen_id->event_handler, listen_id->context,  in cma_ib_new_conn_id()
2069 				   listen_id->ps,  in cma_ib_new_conn_id()
2070 				   ib_event->param.req_rcvd.qp_type,  in cma_ib_new_conn_id()
2075 	id = &id_priv->id;  in cma_ib_new_conn_id()
2076 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_conn_id()
2077 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_conn_id()
2081 	rt = &id->route;  in cma_ib_new_conn_id()
2082 	rt->num_paths = ib_event->param.req_rcvd.alternate_path ? 2 : 1;  in cma_ib_new_conn_id()
2083 	rt->path_rec = kmalloc_array(rt->num_paths, sizeof(*rt->path_rec),  in cma_ib_new_conn_id()
2085 	if (!rt->path_rec)  in cma_ib_new_conn_id()
2088 	rt->path_rec[0] = *path;  in cma_ib_new_conn_id()
2089 	if (rt->num_paths == 2)  in cma_ib_new_conn_id()
2090 		rt->path_rec[1] = *ib_event->param.req_rcvd.alternate_path;  in cma_ib_new_conn_id()
2093 		rdma_copy_src_l2_addr(&rt->addr.dev_addr, net_dev);  in cma_ib_new_conn_id()
2097 			rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;  in cma_ib_new_conn_id()
2098 			rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);  in cma_ib_new_conn_id()
2099 			ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));  in cma_ib_new_conn_id()
2101 			ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr);  in cma_ib_new_conn_id()
2106 	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);  in cma_ib_new_conn_id()
2108 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_conn_id()
2112 	rdma_destroy_id(id);  in cma_ib_new_conn_id()
2123 	struct rdma_cm_id *id;  in cma_ib_new_udp_id()  local
2124 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_udp_id()
2125 	struct net *net = listen_id->route.addr.dev_addr.net;  in cma_ib_new_udp_id()
2128 	listen_id_priv = container_of(listen_id, struct rdma_id_private, id);  in cma_ib_new_udp_id()
2129 	id_priv = __rdma_create_id(net, listen_id->event_handler,  in cma_ib_new_udp_id()
2130 				   listen_id->context, listen_id->ps, IB_QPT_UD,  in cma_ib_new_udp_id()
2135 	id = &id_priv->id;  in cma_ib_new_udp_id()
2136 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_udp_id()
2137 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_udp_id()
2139 			      ib_event->param.sidr_req_rcvd.service_id))  in cma_ib_new_udp_id()
2143 		rdma_copy_src_l2_addr(&id->route.addr.dev_addr, net_dev);  in cma_ib_new_udp_id()
2147 						 &id->route.addr.dev_addr);  in cma_ib_new_udp_id()
2153 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_udp_id()
2156 	rdma_destroy_id(id);  in cma_ib_new_udp_id()
2164 	event->param.conn.private_data = private_data + offset;  in cma_set_req_event_data()
2165 	event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;  in cma_set_req_event_data()
2166 	event->param.conn.responder_resources = req_data->responder_resources;  in cma_set_req_event_data()
2167 	event->param.conn.initiator_depth = req_data->initiator_depth;  in cma_set_req_event_data()
2168 	event->param.conn.flow_control = req_data->flow_control;  in cma_set_req_event_data()
2169 	event->param.conn.retry_count = req_data->retry_count;  in cma_set_req_event_data()
2170 	event->param.conn.rnr_retry_count = req_data->rnr_retry_count;  in cma_set_req_event_data()
2171 	event->param.conn.srq = req_data->srq;  in cma_set_req_event_data()
2172 	event->param.conn.qp_num = req_data->remote_qpn;  in cma_set_req_event_data()
2174 	event->ece.vendor_id = req_data->ece.vendor_id;  in cma_set_req_event_data()
2175 	event->ece.attr_mod = req_data->ece.attr_mod;  in cma_set_req_event_data()
2178 static int cma_ib_check_req_qp_type(const struct rdma_cm_id *id,  in cma_ib_check_req_qp_type()  argument
2181 	return (((ib_event->event == IB_CM_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2182 		 (ib_event->param.req_rcvd.qp_type == id->qp_type)) ||  in cma_ib_check_req_qp_type()
2183 		((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2184 		 (id->qp_type == IB_QPT_UD)) ||  in cma_ib_check_req_qp_type()
2185 		(!id->qp_type));  in cma_ib_check_req_qp_type()
2202 	trace_cm_req_handler(listen_id, ib_event->event);  in cma_ib_req_handler()
2203 	if (!cma_ib_check_req_qp_type(&listen_id->id, ib_event)) {  in cma_ib_req_handler()
2204 		ret = -EINVAL;  in cma_ib_req_handler()
2208 	mutex_lock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2209 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN) {  in cma_ib_req_handler()
2210 		ret = -ECONNABORTED;  in cma_ib_req_handler()
2216 	if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {  in cma_ib_req_handler()
2217 		conn_id = cma_ib_new_udp_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2218 		event.param.ud.private_data = ib_event->private_data + offset;  in cma_ib_req_handler()
2220 				IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;  in cma_ib_req_handler()
2222 		conn_id = cma_ib_new_conn_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2223 		cma_set_req_event_data(&event, &ib_event->param.req_rcvd,  in cma_ib_req_handler()
2224 				       ib_event->private_data, offset);  in cma_ib_req_handler()
2227 		ret = -ENOMEM;  in cma_ib_req_handler()
2231 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in cma_ib_req_handler()
2238 	conn_id->cm_id.ib = cm_id;  in cma_ib_req_handler()
2239 	cm_id->context = conn_id;  in cma_ib_req_handler()
2240 	cm_id->cm_handler = cma_ib_handler;  in cma_ib_req_handler()
2244 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_req_handler()
2245 		conn_id->cm_id.ib = NULL;  in cma_ib_req_handler()
2246 		mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2251 	if (READ_ONCE(conn_id->state) == RDMA_CM_CONNECT &&  in cma_ib_req_handler()
2252 	    conn_id->id.qp_type != IB_QPT_UD) {  in cma_ib_req_handler()
2253 		trace_cm_send_mra(cm_id->context);  in cma_ib_req_handler()
2256 	mutex_unlock(&conn_id->handler_mutex);  in cma_ib_req_handler()
2259 	mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2268 __be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_get_service_id()  argument
2270 	if (addr->sa_family == AF_IB)  in rdma_get_service_id()
2271 		return ((struct sockaddr_ib *) addr)->sib_sid;  in rdma_get_service_id()
2273 	return cpu_to_be64(((u64)id->ps << 16) + be16_to_cpu(cma_port(addr)));  in rdma_get_service_id()
2280 	struct rdma_addr *addr = &cm_id->route.addr;  in rdma_read_gids()
2282 	if (!cm_id->device) {  in rdma_read_gids()
2290 	if (rdma_protocol_roce(cm_id->device, cm_id->port_num)) {  in rdma_read_gids()
2292 			rdma_ip2gid((struct sockaddr *)&addr->src_addr, sgid);  in rdma_read_gids()
2294 			rdma_ip2gid((struct sockaddr *)&addr->dst_addr, dgid);  in rdma_read_gids()
2297 			rdma_addr_get_sgid(&addr->dev_addr, sgid);  in rdma_read_gids()
2299 			rdma_addr_get_dgid(&addr->dev_addr, dgid);  in rdma_read_gids()
2306 	struct rdma_id_private *id_priv = iw_id->context;  in cma_iw_handler()
2309 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in cma_iw_handler()
2310 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in cma_iw_handler()
2312 	mutex_lock(&id_priv->handler_mutex);  in cma_iw_handler()
2313 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_iw_handler()
2316 	switch (iw_event->event) {  in cma_iw_handler()
2325 		switch (iw_event->status) {  in cma_iw_handler()
2328 			event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2329 			event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2331 		case -ECONNRESET:  in cma_iw_handler()
2332 		case -ECONNREFUSED:  in cma_iw_handler()
2335 		case -ETIMEDOUT:  in cma_iw_handler()
2345 		event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2346 		event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2352 	event.status = iw_event->status;  in cma_iw_handler()
2353 	event.param.conn.private_data = iw_event->private_data;  in cma_iw_handler()
2354 	event.param.conn.private_data_len = iw_event->private_data_len;  in cma_iw_handler()
2357 		/* Destroy the CM ID by returning a non-zero value. */  in cma_iw_handler()
2358 		id_priv->cm_id.iw = NULL;  in cma_iw_handler()
2364 	mutex_unlock(&id_priv->handler_mutex);  in cma_iw_handler()
2373 	int ret = -ECONNABORTED;  in iw_conn_req_handler()
2374 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in iw_conn_req_handler()
2375 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in iw_conn_req_handler()
2378 	event.param.conn.private_data = iw_event->private_data;  in iw_conn_req_handler()
2379 	event.param.conn.private_data_len = iw_event->private_data_len;  in iw_conn_req_handler()
2380 	event.param.conn.initiator_depth = iw_event->ird;  in iw_conn_req_handler()
2381 	event.param.conn.responder_resources = iw_event->ord;  in iw_conn_req_handler()
2383 	listen_id = cm_id->context;  in iw_conn_req_handler()
2385 	mutex_lock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2386 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN)  in iw_conn_req_handler()
2389 	/* Create a new RDMA id for the new IW CM ID */  in iw_conn_req_handler()
2390 	conn_id = __rdma_create_id(listen_id->id.route.addr.dev_addr.net,  in iw_conn_req_handler()
2391 				   listen_id->id.event_handler,  in iw_conn_req_handler()
2392 				   listen_id->id.context, RDMA_PS_TCP,  in iw_conn_req_handler()
2395 		ret = -ENOMEM;  in iw_conn_req_handler()
2398 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in iw_conn_req_handler()
2399 	conn_id->state = RDMA_CM_CONNECT;  in iw_conn_req_handler()
2401 	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr);  in iw_conn_req_handler()
2403 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2410 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2415 	conn_id->cm_id.iw = cm_id;  in iw_conn_req_handler()
2416 	cm_id->context = conn_id;  in iw_conn_req_handler()
2417 	cm_id->cm_handler = cma_iw_handler;  in iw_conn_req_handler()
2424 		/* User wants to destroy the CM ID */  in iw_conn_req_handler()
2425 		conn_id->cm_id.iw = NULL;  in iw_conn_req_handler()
2426 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2431 	mutex_unlock(&conn_id->handler_mutex);  in iw_conn_req_handler()
2434 	mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2441 	struct ib_cm_id	*id;  in cma_ib_listen()  local
2445 	svc_id = rdma_get_service_id(&id_priv->id, addr);  in cma_ib_listen()
2446 	id = ib_cm_insert_listen(id_priv->id.device,  in cma_ib_listen()
2448 	if (IS_ERR(id))  in cma_ib_listen()
2449 		return PTR_ERR(id);  in cma_ib_listen()
2450 	id_priv->cm_id.ib = id;  in cma_ib_listen()
2458 	struct iw_cm_id	*id;  in cma_iw_listen()  local
2460 	id = iw_create_cm_id(id_priv->id.device,  in cma_iw_listen()
2463 	if (IS_ERR(id))  in cma_iw_listen()
2464 		return PTR_ERR(id);  in cma_iw_listen()
2466 	id->tos = id_priv->tos;  in cma_iw_listen()
2467 	id->tos_set = id_priv->tos_set;  in cma_iw_listen()
2468 	id_priv->cm_id.iw = id;  in cma_iw_listen()
2470 	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),  in cma_iw_listen()
2473 	ret = iw_cm_listen(id_priv->cm_id.iw, backlog);  in cma_iw_listen()
2476 		iw_destroy_cm_id(id_priv->cm_id.iw);  in cma_iw_listen()
2477 		id_priv->cm_id.iw = NULL;  in cma_iw_listen()
2483 static int cma_listen_handler(struct rdma_cm_id *id,  in cma_listen_handler()  argument
2486 	struct rdma_id_private *id_priv = id->context;  in cma_listen_handler()
2489 	if (event->event == RDMA_CM_EVENT_DEVICE_REMOVAL)  in cma_listen_handler()
2490 		return -1;  in cma_listen_handler()
2492 	id->context = id_priv->id.context;  in cma_listen_handler()
2493 	id->event_handler = id_priv->id.event_handler;  in cma_listen_handler()
2495 	return id_priv->id.event_handler(id, event);  in cma_listen_handler()
2502 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_listen_on_dev()
2507 	if (cma_family(id_priv) == AF_IB && !rdma_cap_ib_cm(cma_dev->device, 1))  in cma_listen_on_dev()
2512 				 id_priv->id.ps, id_priv->id.qp_type, id_priv);  in cma_listen_on_dev()
2516 	dev_id_priv->state = RDMA_CM_ADDR_BOUND;  in cma_listen_on_dev()
2521 	list_add_tail(&dev_id_priv->listen_list, &id_priv->listen_list);  in cma_listen_on_dev()
2523 	dev_id_priv->internal_id = 1;  in cma_listen_on_dev()
2524 	dev_id_priv->afonly = id_priv->afonly;  in cma_listen_on_dev()
2525 	dev_id_priv->tos_set = id_priv->tos_set;  in cma_listen_on_dev()
2526 	dev_id_priv->tos = id_priv->tos;  in cma_listen_on_dev()
2528 	ret = rdma_listen(&dev_id_priv->id, id_priv->backlog);  in cma_listen_on_dev()
2530 		dev_warn(&cma_dev->device->dev,  in cma_listen_on_dev()
2539 	list_add_tail(&id_priv->list, &listen_any_list);  in cma_listen_on_all()
2545 void rdma_set_service_type(struct rdma_cm_id *id, int tos)  in rdma_set_service_type()  argument
2549 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_set_service_type()
2550 	id_priv->tos = (u8) tos;  in rdma_set_service_type()
2551 	id_priv->tos_set = true;  in rdma_set_service_type()
2556  * rdma_set_ack_timeout() - Set the ack timeout of QP associated
2558  * @id: Communication identifier to associated with service type.
2570 int rdma_set_ack_timeout(struct rdma_cm_id *id, u8 timeout)  in rdma_set_ack_timeout()  argument
2574 	if (id->qp_type != IB_QPT_RC)  in rdma_set_ack_timeout()
2575 		return -EINVAL;  in rdma_set_ack_timeout()
2577 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_set_ack_timeout()
2578 	id_priv->timeout = timeout;  in rdma_set_ack_timeout()
2579 	id_priv->timeout_set = true;  in rdma_set_ack_timeout()
2591 	route = &work->id->id.route;  in cma_query_handler()
2594 		route->num_paths = 1;  in cma_query_handler()
2595 		*route->path_rec = *path_rec;  in cma_query_handler()
2597 		work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_query_handler()
2598 		work->new_state = RDMA_CM_ADDR_RESOLVED;  in cma_query_handler()
2599 		work->event.event = RDMA_CM_EVENT_ROUTE_ERROR;  in cma_query_handler()
2600 		work->event.status = status;  in cma_query_handler()
2605 	queue_work(cma_wq, &work->work);  in cma_query_handler()
2611 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_query_ib_route()
2619 	if (rdma_cap_opa_ah(id_priv->id.device, id_priv->id.port_num))  in cma_query_ib_route()
2628 	path_rec.service_id = rdma_get_service_id(&id_priv->id,  in cma_query_ib_route()
2637 		path_rec.qos_class = cpu_to_be16((u16) id_priv->tos);  in cma_query_ib_route()
2642 		path_rec.traffic_class = (u8) (be32_to_cpu(sin6->sin6_flowinfo) >> 20);  in cma_query_ib_route()
2647 		path_rec.traffic_class = (u8) (be32_to_cpu(sib->sib_flowinfo) >> 20);  in cma_query_ib_route()
2652 	id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device,  in cma_query_ib_route()
2653 					       id_priv->id.port_num, &path_rec,  in cma_query_ib_route()
2656 					       work, &id_priv->query);  in cma_query_ib_route()
2658 	return (id_priv->query_id < 0) ? id_priv->query_id : 0;  in cma_query_ib_route()
2664 	struct rdma_id_private *id_priv = work->id;  in cma_work_handler()
2666 	mutex_lock(&id_priv->handler_mutex);  in cma_work_handler()
2667 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_work_handler()
2668 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_work_handler()
2670 	if (work->old_state != 0 || work->new_state != 0) {  in cma_work_handler()
2671 		if (!cma_comp_exch(id_priv, work->old_state, work->new_state))  in cma_work_handler()
2675 	if (cma_cm_event_handler(id_priv, &work->event)) {  in cma_work_handler()
2682 	mutex_unlock(&id_priv->handler_mutex);  in cma_work_handler()
2685 	if (work->event.event == RDMA_CM_EVENT_MULTICAST_JOIN)  in cma_work_handler()
2686 		rdma_destroy_ah_attr(&work->event.param.ud.ah_attr);  in cma_work_handler()
2693 	work->id = id_priv;  in cma_init_resolve_route_work()
2694 	INIT_WORK(&work->work, cma_work_handler);  in cma_init_resolve_route_work()
2695 	work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_init_resolve_route_work()
2696 	work->new_state = RDMA_CM_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
2697 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
2706 	work->id = id_priv;  in enqueue_resolve_addr_work()
2707 	INIT_WORK(&work->work, cma_work_handler);  in enqueue_resolve_addr_work()
2708 	work->old_state = RDMA_CM_ADDR_QUERY;  in enqueue_resolve_addr_work()
2709 	work->new_state = RDMA_CM_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
2710 	work->event.event = RDMA_CM_EVENT_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
2712 	queue_work(cma_wq, &work->work);  in enqueue_resolve_addr_work()
2718 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_ib_route()
2724 		return -ENOMEM;  in cma_resolve_ib_route()
2728 	route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_ib_route()
2729 	if (!route->path_rec) {  in cma_resolve_ib_route()
2730 		ret = -ENOMEM;  in cma_resolve_ib_route()
2740 	kfree(route->path_rec);  in cma_resolve_ib_route()
2741 	route->path_rec = NULL;  in cma_resolve_ib_route()
2769 	struct rdma_route *route = &id_priv->id.route;  in cma_iboe_set_path_rec_l2_fields()
2771 	struct rdma_addr *addr = &route->addr;  in cma_iboe_set_path_rec_l2_fields()
2775 	if (!addr->dev_addr.bound_dev_if)  in cma_iboe_set_path_rec_l2_fields()
2778 	ndev = dev_get_by_index(addr->dev_addr.net,  in cma_iboe_set_path_rec_l2_fields()
2779 				addr->dev_addr.bound_dev_if);  in cma_iboe_set_path_rec_l2_fields()
2783 	supported_gids = roce_gid_type_mask_support(id_priv->id.device,  in cma_iboe_set_path_rec_l2_fields()
2784 						    id_priv->id.port_num);  in cma_iboe_set_path_rec_l2_fields()
2785 	gid_type = cma_route_gid_type(addr->dev_addr.network,  in cma_iboe_set_path_rec_l2_fields()
2787 				      id_priv->gid_type);  in cma_iboe_set_path_rec_l2_fields()
2789 	if (gid_type < ib_network_to_gid_type(addr->dev_addr.network))  in cma_iboe_set_path_rec_l2_fields()
2790 		gid_type = ib_network_to_gid_type(addr->dev_addr.network);  in cma_iboe_set_path_rec_l2_fields()
2791 	route->path_rec->rec_type = sa_conv_gid_to_pathrec_type(gid_type);  in cma_iboe_set_path_rec_l2_fields()
2793 	route->path_rec->roce.route_resolved = true;  in cma_iboe_set_path_rec_l2_fields()
2794 	sa_path_set_dmac(route->path_rec, addr->dev_addr.dst_dev_addr);  in cma_iboe_set_path_rec_l2_fields()
2798 int rdma_set_ib_path(struct rdma_cm_id *id,  in rdma_set_ib_path()  argument
2805 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_set_ib_path()
2808 		return -EINVAL;  in rdma_set_ib_path()
2810 	id->route.path_rec = kmemdup(path_rec, sizeof(*path_rec),  in rdma_set_ib_path()
2812 	if (!id->route.path_rec) {  in rdma_set_ib_path()
2813 		ret = -ENOMEM;  in rdma_set_ib_path()
2817 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_set_ib_path()
2820 			ret = -ENODEV;  in rdma_set_ib_path()
2826 	id->route.num_paths = 1;  in rdma_set_ib_path()
2830 	kfree(id->route.path_rec);  in rdma_set_ib_path()
2831 	id->route.path_rec = NULL;  in rdma_set_ib_path()
2844 		return -ENOMEM;  in cma_resolve_iw_route()
2847 	queue_work(cma_wq, &work->work);  in cma_resolve_iw_route()
2856 	if (dev->num_tc)  in get_vlan_ndev_tc()
2872 	struct iboe_prio_tc_map *map = (struct iboe_prio_tc_map *)priv->data;  in get_lower_vlan_dev_tc()
2875 		map->output_tc = get_vlan_ndev_tc(dev, map->input_prio);  in get_lower_vlan_dev_tc()
2876 	else if (dev->num_tc)  in get_lower_vlan_dev_tc()
2877 		map->output_tc = netdev_get_prio_tc_map(dev, map->input_prio);  in get_lower_vlan_dev_tc()
2879 		map->output_tc = 0;  in get_lower_vlan_dev_tc()
2880 	/* We are interested only in first level VLAN device, so always  in get_lower_vlan_dev_tc()
2883 	map->found = true;  in get_lower_vlan_dev_tc()
2893 	/* If VLAN device, get it directly from the VLAN netdev */  in iboe_tos_to_sl()
2904 	/* If map is found from lower device, use it; Otherwise  in iboe_tos_to_sl()
2909 	else if (ndev->num_tc)  in iboe_tos_to_sl()
2922 	fl = be32_to_cpu(addr6->sin6_flowinfo) & IB_GRH_FLOWLABEL_MASK;  in cma_get_roce_udp_flow_label()
2935 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_iboe_route()
2936 	struct rdma_addr *addr = &route->addr;  in cma_resolve_iboe_route()
2941 	u8 default_roce_tos = id_priv->cma_dev->default_roce_tos[id_priv->id.port_num -  in cma_resolve_iboe_route()
2942 					rdma_start_port(id_priv->cma_dev->device)];  in cma_resolve_iboe_route()
2943 	u8 tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;  in cma_resolve_iboe_route()
2948 		return -ENOMEM;  in cma_resolve_iboe_route()
2950 	route->path_rec = kzalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_iboe_route()
2951 	if (!route->path_rec) {  in cma_resolve_iboe_route()
2952 		ret = -ENOMEM;  in cma_resolve_iboe_route()
2956 	route->num_paths = 1;  in cma_resolve_iboe_route()
2960 		ret = -ENODEV;  in cma_resolve_iboe_route()
2964 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_resolve_iboe_route()
2965 		    &route->path_rec->sgid);  in cma_resolve_iboe_route()
2966 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,  in cma_resolve_iboe_route()
2967 		    &route->path_rec->dgid);  in cma_resolve_iboe_route()
2969 	if (((struct sockaddr *)&id_priv->id.route.addr.dst_addr)->sa_family != AF_IB)  in cma_resolve_iboe_route()
2970 		/* TODO: get the hoplimit from the inet/inet6 device */  in cma_resolve_iboe_route()
2971 		route->path_rec->hop_limit = addr->dev_addr.hoplimit;  in cma_resolve_iboe_route()
2973 		route->path_rec->hop_limit = 1;  in cma_resolve_iboe_route()
2974 	route->path_rec->reversible = 1;  in cma_resolve_iboe_route()
2975 	route->path_rec->pkey = cpu_to_be16(0xffff);  in cma_resolve_iboe_route()
2976 	route->path_rec->mtu_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
2977 	route->path_rec->sl = iboe_tos_to_sl(ndev, tos);  in cma_resolve_iboe_route()
2978 	route->path_rec->traffic_class = tos;  in cma_resolve_iboe_route()
2979 	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);  in cma_resolve_iboe_route()
2980 	route->path_rec->rate_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
2981 	route->path_rec->rate = iboe_get_rate(ndev);  in cma_resolve_iboe_route()
2983 	route->path_rec->packet_life_time_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
2991 	route->path_rec->packet_life_time = id_priv->timeout_set ?  in cma_resolve_iboe_route()
2992 		id_priv->timeout - 1 : CMA_IBOE_PACKET_LIFETIME;  in cma_resolve_iboe_route()
2994 	if (!route->path_rec->mtu) {  in cma_resolve_iboe_route()
2995 		ret = -EINVAL;  in cma_resolve_iboe_route()
2999 	if (rdma_protocol_roce_udp_encap(id_priv->id.device,  in cma_resolve_iboe_route()
3000 					 id_priv->id.port_num))  in cma_resolve_iboe_route()
3001 		route->path_rec->flow_label =  in cma_resolve_iboe_route()
3005 	queue_work(cma_wq, &work->work);  in cma_resolve_iboe_route()
3010 	kfree(route->path_rec);  in cma_resolve_iboe_route()
3011 	route->path_rec = NULL;  in cma_resolve_iboe_route()
3012 	route->num_paths = 0;  in cma_resolve_iboe_route()
3018 int rdma_resolve_route(struct rdma_cm_id *id, unsigned long timeout_ms)  in rdma_resolve_route()  argument
3023 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_resolve_route()
3025 		return -EINVAL;  in rdma_resolve_route()
3028 	if (rdma_cap_ib_sa(id->device, id->port_num))  in rdma_resolve_route()
3030 	else if (rdma_protocol_roce(id->device, id->port_num))  in rdma_resolve_route()
3032 	else if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_resolve_route()
3035 		ret = -ENOSYS;  in rdma_resolve_route()
3050 	switch (addr->sa_family) {  in cma_set_loopback()
3052 		((struct sockaddr_in *) addr)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);  in cma_set_loopback()
3055 		ipv6_addr_set(&((struct sockaddr_in6 *) addr)->sin6_addr,  in cma_set_loopback()
3059 		ib_addr_set(&((struct sockaddr_ib *) addr)->sib_addr,  in cma_set_loopback()
3078 		    !rdma_cap_ib_cm(cur_dev->device, 1))  in cma_bind_loopback()
3084 		rdma_for_each_port (cur_dev->device, p) {  in cma_bind_loopback()
3085 			if (!ib_get_cached_port_state(cur_dev->device, p, &port_state) &&  in cma_bind_loopback()
3094 		ret = -ENODEV;  in cma_bind_loopback()
3101 	ret = rdma_query_gid(cma_dev->device, p, 0, &gid);  in cma_bind_loopback()
3105 	ret = ib_get_cached_pkey(cma_dev->device, p, 0, &pkey);  in cma_bind_loopback()
3109 	id_priv->id.route.addr.dev_addr.dev_type =  in cma_bind_loopback()
3110 		(rdma_protocol_ib(cma_dev->device, p)) ?  in cma_bind_loopback()
3113 	rdma_addr_set_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_bind_loopback()
3114 	ib_addr_set_pkey(&id_priv->id.route.addr.dev_addr, pkey);  in cma_bind_loopback()
3115 	id_priv->id.port_num = p;  in cma_bind_loopback()
3131 	mutex_lock(&id_priv->handler_mutex);  in addr_handler()
3138 	 * matching rdma device, old address can be restored back, which helps  in addr_handler()
3144 	if (!status && !id_priv->cma_dev) {  in addr_handler()
3147 			pr_debug_ratelimited("RDMA CM: ADDR_ERROR: failed to acquire device. status %d\n",  in addr_handler()
3169 	mutex_unlock(&id_priv->handler_mutex);  in addr_handler()
3180 		return -ENOMEM;  in cma_resolve_loopback()
3182 	if (!id_priv->cma_dev) {  in cma_resolve_loopback()
3188 	rdma_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3189 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3205 		return -ENOMEM;  in cma_resolve_ib_addr()
3207 	if (!id_priv->cma_dev) {  in cma_resolve_ib_addr()
3213 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, (union ib_gid *)  in cma_resolve_ib_addr()
3214 		&(((struct sockaddr_ib *) &id_priv->id.route.addr.dst_addr)->sib_addr));  in cma_resolve_ib_addr()
3223 static int cma_bind_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,  in cma_bind_addr()  argument
3226 	if (!src_addr || !src_addr->sa_family) {  in cma_bind_addr()
3227 		src_addr = (struct sockaddr *) &id->route.addr.src_addr;  in cma_bind_addr()
3228 		src_addr->sa_family = dst_addr->sa_family;  in cma_bind_addr()
3230 		    dst_addr->sa_family == AF_INET6) {  in cma_bind_addr()
3233 			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;  in cma_bind_addr()
3234 			if (ipv6_addr_type(&dst_addr6->sin6_addr) & IPV6_ADDR_LINKLOCAL)  in cma_bind_addr()
3235 				id->route.addr.dev_addr.bound_dev_if = dst_addr6->sin6_scope_id;  in cma_bind_addr()
3236 		} else if (dst_addr->sa_family == AF_IB) {  in cma_bind_addr()
3237 			((struct sockaddr_ib *) src_addr)->sib_pkey =  in cma_bind_addr()
3238 				((struct sockaddr_ib *) dst_addr)->sib_pkey;  in cma_bind_addr()
3241 	return rdma_bind_addr(id, src_addr);  in cma_bind_addr()
3247  * calls made by ULP, a previously bound ID will not be re-bound and src_addr is
3259 		ret = cma_bind_addr(&id_priv->id, src_addr, dst_addr);  in resolve_prepare_src()
3264 			ret = -EINVAL;  in resolve_prepare_src()
3269 	if (cma_family(id_priv) != dst_addr->sa_family) {  in resolve_prepare_src()
3270 		ret = -EINVAL;  in resolve_prepare_src()
3282 int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,  in rdma_resolve_addr()  argument
3286 		container_of(id, struct rdma_id_private, id);  in rdma_resolve_addr()
3296 		if (dst_addr->sa_family == AF_IB) {  in rdma_resolve_addr()
3300 					      &id->route.addr.dev_addr,  in rdma_resolve_addr()
3315 int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse)  in rdma_set_reuseaddr()  argument
3321 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_set_reuseaddr()
3322 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3323 	if ((reuse && id_priv->state != RDMA_CM_LISTEN) ||  in rdma_set_reuseaddr()
3324 	    id_priv->state == RDMA_CM_IDLE) {  in rdma_set_reuseaddr()
3325 		id_priv->reuseaddr = reuse;  in rdma_set_reuseaddr()
3328 		ret = -EINVAL;  in rdma_set_reuseaddr()
3330 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3335 int rdma_set_afonly(struct rdma_cm_id *id, int afonly)  in rdma_set_afonly()  argument
3341 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_set_afonly()
3342 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_afonly()
3343 	if (id_priv->state == RDMA_CM_IDLE || id_priv->state == RDMA_CM_ADDR_BOUND) {  in rdma_set_afonly()
3344 		id_priv->options |= (1 << CMA_OPTION_AFONLY);  in rdma_set_afonly()
3345 		id_priv->afonly = afonly;  in rdma_set_afonly()
3348 		ret = -EINVAL;  in rdma_set_afonly()
3350 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_afonly()
3366 	port = htons(bind_list->port);  in cma_bind_port()
3368 	switch (addr->sa_family) {  in cma_bind_port()
3370 		((struct sockaddr_in *) addr)->sin_port = port;  in cma_bind_port()
3373 		((struct sockaddr_in6 *) addr)->sin6_port = port;  in cma_bind_port()
3377 		sid = be64_to_cpu(sib->sib_sid);  in cma_bind_port()
3378 		mask = be64_to_cpu(sib->sib_sid_mask);  in cma_bind_port()
3379 		sib->sib_sid = cpu_to_be64((sid & mask) | (u64) ntohs(port));  in cma_bind_port()
3380 		sib->sib_sid_mask = cpu_to_be64(~0ULL);  in cma_bind_port()
3383 	id_priv->bind_list = bind_list;  in cma_bind_port()
3384 	hlist_add_head(&id_priv->node, &bind_list->owners);  in cma_bind_port()
3397 		return -ENOMEM;  in cma_alloc_port()
3399 	ret = cma_ps_alloc(id_priv->id.route.addr.dev_addr.net, ps, bind_list,  in cma_alloc_port()
3404 	bind_list->ps = ps;  in cma_alloc_port()
3405 	bind_list->port = snum;  in cma_alloc_port()
3410 	return ret == -ENOSPC ? -EADDRNOTAVAIL : ret;  in cma_alloc_port()
3423 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_port_is_unique()
3431 		/* different dest port -> unique */  in cma_port_is_unique()
3437 		/* different src address -> unique */  in cma_port_is_unique()
3443 		/* different dst address -> unique */  in cma_port_is_unique()
3449 		return -EADDRNOTAVAIL;  in cma_port_is_unique()
3460 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_alloc_any_port()
3465 	remaining = (high - low) + 1;  in cma_alloc_any_port()
3483 		 * re-using same port immediately after it is closed.  in cma_alloc_any_port()
3487 		if (ret != -EADDRNOTAVAIL)  in cma_alloc_any_port()
3490 	if (--remaining) {  in cma_alloc_any_port()
3496 	return -EADDRNOTAVAIL;  in cma_alloc_any_port()
3514 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_check_port()
3518 		if (reuseaddr && cur_id->reuseaddr)  in cma_check_port()
3522 		if (id_priv->afonly && cur_id->afonly &&  in cma_check_port()
3523 		    (addr->sa_family != cur_addr->sa_family))  in cma_check_port()
3527 			return -EADDRNOTAVAIL;  in cma_check_port()
3530 			return -EADDRINUSE;  in cma_check_port()
3546 		return -EACCES;  in cma_use_port()
3548 	bind_list = cma_ps_find(id_priv->id.route.addr.dev_addr.net, ps, snum);  in cma_use_port()
3552 		ret = cma_check_port(bind_list, id_priv, id_priv->reuseaddr);  in cma_use_port()
3562 	switch (id_priv->id.ps) {  in cma_select_inet_ps()
3567 		return id_priv->id.ps;  in cma_select_inet_ps()
3582 	mask = be64_to_cpu(sib->sib_sid_mask) & RDMA_IB_IP_PS_MASK;  in cma_select_ib_ps()
3583 	sid = be64_to_cpu(sib->sib_sid) & mask;  in cma_select_ib_ps()
3585 	if ((id_priv->id.ps == RDMA_PS_IB) && (sid == (RDMA_IB_IP_PS_IB & mask))) {  in cma_select_ib_ps()
3588 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_TCP)) &&  in cma_select_ib_ps()
3592 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_UDP)) &&  in cma_select_ib_ps()
3599 		sib->sib_sid = cpu_to_be64(sid_ps | ntohs(cma_port((struct sockaddr *) sib)));  in cma_select_ib_ps()
3600 		sib->sib_sid_mask = cpu_to_be64(RDMA_IB_IP_PS_MASK |  in cma_select_ib_ps()
3601 						be64_to_cpu(sib->sib_sid_mask));  in cma_select_ib_ps()
3616 		return -EPROTONOSUPPORT;  in cma_get_port()
3634 	if (addr->sa_family != AF_INET6)  in cma_check_linklocal()
3639 	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))  in cma_check_linklocal()
3642 	if (!sin6->sin6_scope_id)  in cma_check_linklocal()
3643 			return -EINVAL;  in cma_check_linklocal()
3645 	dev_addr->bound_dev_if = sin6->sin6_scope_id;  in cma_check_linklocal()
3650 int rdma_listen(struct rdma_cm_id *id, int backlog)  in rdma_listen()  argument
3653 		container_of(id, struct rdma_id_private, id);  in rdma_listen()
3658 		id->route.addr.src_addr.ss_family = AF_INET;  in rdma_listen()
3659 		ret = rdma_bind_addr(id, cma_src_addr(id_priv));  in rdma_listen()
3664 			return -EINVAL;  in rdma_listen()
3668 	 * Once the ID reaches RDMA_CM_LISTEN it is not allowed to be reusable  in rdma_listen()
3671 	if (id_priv->reuseaddr) {  in rdma_listen()
3673 		ret = cma_check_port(id_priv->bind_list, id_priv, 0);  in rdma_listen()
3675 			id_priv->reuseaddr = 0;  in rdma_listen()
3681 	id_priv->backlog = backlog;  in rdma_listen()
3682 	if (id->device) {  in rdma_listen()
3683 		if (rdma_cap_ib_cm(id->device, 1)) {  in rdma_listen()
3687 		} else if (rdma_cap_iw_cm(id->device, 1)) {  in rdma_listen()
3692 			ret = -ENOSYS;  in rdma_listen()
3700 	id_priv->backlog = 0;  in rdma_listen()
3710 int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_bind_addr()  argument
3716 	if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&  in rdma_bind_addr()
3717 	    addr->sa_family != AF_IB)  in rdma_bind_addr()
3718 		return -EAFNOSUPPORT;  in rdma_bind_addr()
3720 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_bind_addr()
3722 		return -EINVAL;  in rdma_bind_addr()
3724 	ret = cma_check_linklocal(&id->route.addr.dev_addr, addr);  in rdma_bind_addr()
3730 		ret = cma_translate_addr(addr, &id->route.addr.dev_addr);  in rdma_bind_addr()
3739 	if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) {  in rdma_bind_addr()
3740 		if (addr->sa_family == AF_INET)  in rdma_bind_addr()
3741 			id_priv->afonly = 1;  in rdma_bind_addr()
3743 		else if (addr->sa_family == AF_INET6) {  in rdma_bind_addr()
3744 			struct net *net = id_priv->id.route.addr.dev_addr.net;  in rdma_bind_addr()
3746 			id_priv->afonly = net->ipv6.sysctl.bindv6only;  in rdma_bind_addr()
3751 	daddr->sa_family = addr->sa_family;  in rdma_bind_addr()
3759 	if (id_priv->cma_dev)  in rdma_bind_addr()
3772 	cma_hdr->cma_version = CMA_VERSION;  in cma_format_hdr()
3780 		cma_hdr->src_addr.ip4.addr = src4->sin_addr.s_addr;  in cma_format_hdr()
3781 		cma_hdr->dst_addr.ip4.addr = dst4->sin_addr.s_addr;  in cma_format_hdr()
3782 		cma_hdr->port = src4->sin_port;  in cma_format_hdr()
3790 		cma_hdr->src_addr.ip6 = src6->sin6_addr;  in cma_format_hdr()
3791 		cma_hdr->dst_addr.ip6 = dst6->sin6_addr;  in cma_format_hdr()
3792 		cma_hdr->port = src6->sin6_port;  in cma_format_hdr()
3800 	struct rdma_id_private *id_priv = cm_id->context;  in cma_sidr_rep_handler()
3803 				&ib_event->param.sidr_rep_rcvd;  in cma_sidr_rep_handler()
3806 	mutex_lock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
3807 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_sidr_rep_handler()
3810 	switch (ib_event->event) {  in cma_sidr_rep_handler()
3813 		event.status = -ETIMEDOUT;  in cma_sidr_rep_handler()
3816 		event.param.ud.private_data = ib_event->private_data;  in cma_sidr_rep_handler()
3818 		if (rep->status != IB_SIDR_SUCCESS) {  in cma_sidr_rep_handler()
3820 			event.status = ib_event->param.sidr_rep_rcvd.status;  in cma_sidr_rep_handler()
3825 		ret = cma_set_qkey(id_priv, rep->qkey);  in cma_sidr_rep_handler()
3832 		ib_init_ah_attr_from_path(id_priv->id.device,  in cma_sidr_rep_handler()
3833 					  id_priv->id.port_num,  in cma_sidr_rep_handler()
3834 					  id_priv->id.route.path_rec,  in cma_sidr_rep_handler()
3836 					  rep->sgid_attr);  in cma_sidr_rep_handler()
3837 		event.param.ud.qp_num = rep->qpn;  in cma_sidr_rep_handler()
3838 		event.param.ud.qkey = rep->qkey;  in cma_sidr_rep_handler()
3844 		       ib_event->event);  in cma_sidr_rep_handler()
3852 		/* Destroy the CM ID by returning a non-zero value. */  in cma_sidr_rep_handler()
3853 		id_priv->cm_id.ib = NULL;  in cma_sidr_rep_handler()
3858 	mutex_unlock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
3866 	struct ib_cm_id	*id;  in cma_resolve_ib_udp()  local
3873 	req.private_data_len = offset + conn_param->private_data_len;  in cma_resolve_ib_udp()
3874 	if (req.private_data_len < conn_param->private_data_len)  in cma_resolve_ib_udp()
3875 		return -EINVAL;  in cma_resolve_ib_udp()
3880 			return -ENOMEM;  in cma_resolve_ib_udp()
3885 	if (conn_param->private_data && conn_param->private_data_len)  in cma_resolve_ib_udp()
3886 		memcpy(private_data + offset, conn_param->private_data,  in cma_resolve_ib_udp()
3887 		       conn_param->private_data_len);  in cma_resolve_ib_udp()
3896 	id = ib_create_cm_id(id_priv->id.device, cma_sidr_rep_handler,  in cma_resolve_ib_udp()
3898 	if (IS_ERR(id)) {  in cma_resolve_ib_udp()
3899 		ret = PTR_ERR(id);  in cma_resolve_ib_udp()
3902 	id_priv->cm_id.ib = id;  in cma_resolve_ib_udp()
3904 	req.path = id_priv->id.route.path_rec;  in cma_resolve_ib_udp()
3905 	req.sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_resolve_ib_udp()
3906 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_resolve_ib_udp()
3907 	req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);  in cma_resolve_ib_udp()
3911 	ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);  in cma_resolve_ib_udp()
3913 		ib_destroy_cm_id(id_priv->cm_id.ib);  in cma_resolve_ib_udp()
3914 		id_priv->cm_id.ib = NULL;  in cma_resolve_ib_udp()
3927 	struct ib_cm_id	*id;  in cma_connect_ib()  local
3933 	req.private_data_len = offset + conn_param->private_data_len;  in cma_connect_ib()
3934 	if (req.private_data_len < conn_param->private_data_len)  in cma_connect_ib()
3935 		return -EINVAL;  in cma_connect_ib()
3940 			return -ENOMEM;  in cma_connect_ib()
3945 	if (conn_param->private_data && conn_param->private_data_len)  in cma_connect_ib()
3946 		memcpy(private_data + offset, conn_param->private_data,  in cma_connect_ib()
3947 		       conn_param->private_data_len);  in cma_connect_ib()
3949 	id = ib_create_cm_id(id_priv->id.device, cma_ib_handler, id_priv);  in cma_connect_ib()
3950 	if (IS_ERR(id)) {  in cma_connect_ib()
3951 		ret = PTR_ERR(id);  in cma_connect_ib()
3954 	id_priv->cm_id.ib = id;  in cma_connect_ib()
3956 	route = &id_priv->id.route;  in cma_connect_ib()
3964 	req.primary_path = &route->path_rec[0];  in cma_connect_ib()
3965 	if (route->num_paths == 2)  in cma_connect_ib()
3966 		req.alternate_path = &route->path_rec[1];  in cma_connect_ib()
3968 	req.ppath_sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_connect_ib()
3970 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_connect_ib()
3971 	req.qp_num = id_priv->qp_num;  in cma_connect_ib()
3972 	req.qp_type = id_priv->id.qp_type;  in cma_connect_ib()
3973 	req.starting_psn = id_priv->seq_num;  in cma_connect_ib()
3974 	req.responder_resources = conn_param->responder_resources;  in cma_connect_ib()
3975 	req.initiator_depth = conn_param->initiator_depth;  in cma_connect_ib()
3976 	req.flow_control = conn_param->flow_control;  in cma_connect_ib()
3977 	req.retry_count = min_t(u8, 7, conn_param->retry_count);  in cma_connect_ib()
3978 	req.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_connect_ib()
3982 	req.srq = id_priv->srq ? 1 : 0;  in cma_connect_ib()
3983 	req.ece.vendor_id = id_priv->ece.vendor_id;  in cma_connect_ib()
3984 	req.ece.attr_mod = id_priv->ece.attr_mod;  in cma_connect_ib()
3987 	ret = ib_send_cm_req(id_priv->cm_id.ib, &req);  in cma_connect_ib()
3989 	if (ret && !IS_ERR(id)) {  in cma_connect_ib()
3990 		ib_destroy_cm_id(id);  in cma_connect_ib()
3991 		id_priv->cm_id.ib = NULL;  in cma_connect_ib()
4005 	cm_id = iw_create_cm_id(id_priv->id.device, cma_iw_handler, id_priv);  in cma_connect_iw()
4009 	cm_id->tos = id_priv->tos;  in cma_connect_iw()
4010 	cm_id->tos_set = id_priv->tos_set;  in cma_connect_iw()
4011 	id_priv->cm_id.iw = cm_id;  in cma_connect_iw()
4013 	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),  in cma_connect_iw()
4015 	memcpy(&cm_id->remote_addr, cma_dst_addr(id_priv),  in cma_connect_iw()
4023 		iw_param.ord = conn_param->initiator_depth;  in cma_connect_iw()
4024 		iw_param.ird = conn_param->responder_resources;  in cma_connect_iw()
4025 		iw_param.private_data = conn_param->private_data;  in cma_connect_iw()
4026 		iw_param.private_data_len = conn_param->private_data_len;  in cma_connect_iw()
4027 		iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;  in cma_connect_iw()
4030 		iw_param.qpn = id_priv->qp_num;  in cma_connect_iw()
4036 		id_priv->cm_id.iw = NULL;  in cma_connect_iw()
4042  * rdma_connect_locked - Initiate an active connection request.
4043  * @id: Connection identifier to connect.
4049 int rdma_connect_locked(struct rdma_cm_id *id,  in rdma_connect_locked()  argument
4053 		container_of(id, struct rdma_id_private, id);  in rdma_connect_locked()
4057 		return -EINVAL;  in rdma_connect_locked()
4059 	if (!id->qp) {  in rdma_connect_locked()
4060 		id_priv->qp_num = conn_param->qp_num;  in rdma_connect_locked()
4061 		id_priv->srq = conn_param->srq;  in rdma_connect_locked()
4064 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_connect_locked()
4065 		if (id->qp_type == IB_QPT_UD)  in rdma_connect_locked()
4069 	} else if (rdma_cap_iw_cm(id->device, id->port_num))  in rdma_connect_locked()
4072 		ret = -ENOSYS;  in rdma_connect_locked()
4083  * rdma_connect - Initiate an active connection request.
4084  * @id: Connection identifier to connect.
4094 int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)  in rdma_connect()  argument
4097 		container_of(id, struct rdma_id_private, id);  in rdma_connect()
4100 	mutex_lock(&id_priv->handler_mutex);  in rdma_connect()
4101 	ret = rdma_connect_locked(id, conn_param);  in rdma_connect()
4102 	mutex_unlock(&id_priv->handler_mutex);  in rdma_connect()
4108  * rdma_connect_ece - Initiate an active connection request with ECE data.
4109  * @id: Connection identifier to connect.
4115 int rdma_connect_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,  in rdma_connect_ece()  argument
4119 		container_of(id, struct rdma_id_private, id);  in rdma_connect_ece()
4121 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_connect_ece()
4122 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_connect_ece()
4124 	return rdma_connect(id, conn_param);  in rdma_connect_ece()
4143 	rep.qp_num = id_priv->qp_num;  in cma_accept_ib()
4144 	rep.starting_psn = id_priv->seq_num;  in cma_accept_ib()
4145 	rep.private_data = conn_param->private_data;  in cma_accept_ib()
4146 	rep.private_data_len = conn_param->private_data_len;  in cma_accept_ib()
4147 	rep.responder_resources = conn_param->responder_resources;  in cma_accept_ib()
4148 	rep.initiator_depth = conn_param->initiator_depth;  in cma_accept_ib()
4150 	rep.flow_control = conn_param->flow_control;  in cma_accept_ib()
4151 	rep.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_accept_ib()
4152 	rep.srq = id_priv->srq ? 1 : 0;  in cma_accept_ib()
4153 	rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_accept_ib()
4154 	rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_accept_ib()
4157 	ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);  in cma_accept_ib()
4169 		return -EINVAL;  in cma_accept_iw()
4175 	iw_param.ord = conn_param->initiator_depth;  in cma_accept_iw()
4176 	iw_param.ird = conn_param->responder_resources;  in cma_accept_iw()
4177 	iw_param.private_data = conn_param->private_data;  in cma_accept_iw()
4178 	iw_param.private_data_len = conn_param->private_data_len;  in cma_accept_iw()
4179 	if (id_priv->id.qp) {  in cma_accept_iw()
4180 		iw_param.qpn = id_priv->qp_num;  in cma_accept_iw()
4182 		iw_param.qpn = conn_param->qp_num;  in cma_accept_iw()
4184 	return iw_cm_accept(id_priv->cm_id.iw, &iw_param);  in cma_accept_iw()
4200 		rep.qp_num = id_priv->qp_num;  in cma_send_sidr_rep()
4201 		rep.qkey = id_priv->qkey;  in cma_send_sidr_rep()
4203 		rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_send_sidr_rep()
4204 		rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_send_sidr_rep()
4211 	return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);  in cma_send_sidr_rep()
4215  * rdma_accept - Called to accept a connection request or response.
4216  * @id: Connection identifier associated with the request.
4226  * state of the qp associated with the id is modified to error, such that any
4232 int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)  in rdma_accept()  argument
4235 		container_of(id, struct rdma_id_private, id);  in rdma_accept()
4238 	lockdep_assert_held(&id_priv->handler_mutex);  in rdma_accept()
4240 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in rdma_accept()
4241 		return -EINVAL;  in rdma_accept()
4243 	if (!id->qp && conn_param) {  in rdma_accept()
4244 		id_priv->qp_num = conn_param->qp_num;  in rdma_accept()
4245 		id_priv->srq = conn_param->srq;  in rdma_accept()
4248 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_accept()
4249 		if (id->qp_type == IB_QPT_UD) {  in rdma_accept()
4252 							conn_param->qkey,  in rdma_accept()
4253 							conn_param->private_data,  in rdma_accept()
4254 							conn_param->private_data_len);  in rdma_accept()
4264 	} else if (rdma_cap_iw_cm(id->device, id->port_num))  in rdma_accept()
4267 		ret = -ENOSYS;  in rdma_accept()
4275 	rdma_reject(id, NULL, 0, IB_CM_REJ_CONSUMER_DEFINED);  in rdma_accept()
4280 int rdma_accept_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,  in rdma_accept_ece()  argument
4284 		container_of(id, struct rdma_id_private, id);  in rdma_accept_ece()
4286 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_accept_ece()
4287 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_accept_ece()
4289 	return rdma_accept(id, conn_param);  in rdma_accept_ece()
4293 void rdma_lock_handler(struct rdma_cm_id *id)  in rdma_lock_handler()  argument
4296 		container_of(id, struct rdma_id_private, id);  in rdma_lock_handler()
4298 	mutex_lock(&id_priv->handler_mutex);  in rdma_lock_handler()
4302 void rdma_unlock_handler(struct rdma_cm_id *id)  in rdma_unlock_handler()  argument
4305 		container_of(id, struct rdma_id_private, id);  in rdma_unlock_handler()
4307 	mutex_unlock(&id_priv->handler_mutex);  in rdma_unlock_handler()
4311 int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event)  in rdma_notify()  argument
4316 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_notify()
4317 	if (!id_priv->cm_id.ib)  in rdma_notify()
4318 		return -EINVAL;  in rdma_notify()
4320 	switch (id->device->node_type) {  in rdma_notify()
4322 		ret = ib_cm_notify(id_priv->cm_id.ib, event);  in rdma_notify()
4332 int rdma_reject(struct rdma_cm_id *id, const void *private_data,  in rdma_reject()  argument
4338 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_reject()
4339 	if (!id_priv->cm_id.ib)  in rdma_reject()
4340 		return -EINVAL;  in rdma_reject()
4342 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_reject()
4343 		if (id->qp_type == IB_QPT_UD) {  in rdma_reject()
4348 			ret = ib_send_cm_rej(id_priv->cm_id.ib, reason, NULL, 0,  in rdma_reject()
4351 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_reject()
4352 		ret = iw_cm_reject(id_priv->cm_id.iw,  in rdma_reject()
4355 		ret = -ENOSYS;  in rdma_reject()
4361 int rdma_disconnect(struct rdma_cm_id *id)  in rdma_disconnect()  argument
4366 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_disconnect()
4367 	if (!id_priv->cm_id.ib)  in rdma_disconnect()
4368 		return -EINVAL;  in rdma_disconnect()
4370 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_disconnect()
4376 		if (ib_send_cm_dreq(id_priv->cm_id.ib, NULL, 0)) {  in rdma_disconnect()
4377 			if (!ib_send_cm_drep(id_priv->cm_id.ib, NULL, 0))  in rdma_disconnect()
4382 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_disconnect()
4383 		ret = iw_cm_disconnect(id_priv->cm_id.iw, 0);  in rdma_disconnect()
4385 		ret = -EINVAL;  in rdma_disconnect()
4402 		status = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));  in cma_make_mc_event()
4407 	event->status = status;  in cma_make_mc_event()
4408 	event->param.ud.private_data = mc->context;  in cma_make_mc_event()
4410 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4414 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_make_mc_event()
4415 	ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_make_mc_event()
4417 		id_priv->cma_dev  in cma_make_mc_event()
4418 			->default_gid_type[id_priv->id.port_num -  in cma_make_mc_event()
4420 						   id_priv->cma_dev->device)];  in cma_make_mc_event()
4422 	event->event = RDMA_CM_EVENT_MULTICAST_JOIN;  in cma_make_mc_event()
4423 	if (ib_init_ah_from_mcmember(id_priv->id.device, id_priv->id.port_num,  in cma_make_mc_event()
4424 				     &multicast->rec, ndev, gid_type,  in cma_make_mc_event()
4425 				     &event->param.ud.ah_attr)) {  in cma_make_mc_event()
4426 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4430 	event->param.ud.qp_num = 0xFFFFFF;  in cma_make_mc_event()
4431 	event->param.ud.qkey = be32_to_cpu(multicast->rec.qkey);  in cma_make_mc_event()
4440 	struct cma_multicast *mc = multicast->context;  in cma_ib_mc_handler()
4441 	struct rdma_id_private *id_priv = mc->id_priv;  in cma_ib_mc_handler()
4445 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4446 	if (READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL ||  in cma_ib_mc_handler()
4447 	    READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING)  in cma_ib_mc_handler()
4459 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4467 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_set_mgid()
4473 	} else if ((addr->sa_family == AF_INET6) &&  in cma_set_mgid()
4474 		   ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFFF0FFFF) ==  in cma_set_mgid()
4477 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_set_mgid()
4478 	} else if (addr->sa_family == AF_IB) {  in cma_set_mgid()
4479 		memcpy(mgid, &((struct sockaddr_ib *) addr)->sib_addr, sizeof *mgid);  in cma_set_mgid()
4480 	} else if (addr->sa_family == AF_INET6) {  in cma_set_mgid()
4481 		ipv6_ib_mc_map(&sin6->sin6_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4482 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4486 		ip_ib_mc_map(sin->sin_addr.s_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4487 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4497 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_join_ib_multicast()
4502 	ret = ib_sa_get_mcmember_rec(id_priv->id.device, id_priv->id.port_num,  in cma_join_ib_multicast()
4511 	cma_set_mgid(id_priv, (struct sockaddr *) &mc->addr, &rec.mgid);  in cma_join_ib_multicast()
4512 	rec.qkey = cpu_to_be32(id_priv->qkey);  in cma_join_ib_multicast()
4515 	rec.join_state = mc->join_state;  in cma_join_ib_multicast()
4519 					     id_priv->id.device,  in cma_join_ib_multicast()
4520 					     id_priv->id.port_num))) {  in cma_join_ib_multicast()
4522 			&id_priv->id.device->dev,  in cma_join_ib_multicast()
4524 			id_priv->id.port_num);  in cma_join_ib_multicast()
4525 		return -EOPNOTSUPP;  in cma_join_ib_multicast()
4534 	if (id_priv->id.ps == RDMA_PS_IPOIB)  in cma_join_ib_multicast()
4541 	mc->sa_mc = ib_sa_join_multicast(&sa_client, id_priv->id.device,  in cma_join_ib_multicast()
4542 					 id_priv->id.port_num, &rec, comp_mask,  in cma_join_ib_multicast()
4544 	return PTR_ERR_OR_ZERO(mc->sa_mc);  in cma_join_ib_multicast()
4555 	} else if (addr->sa_family == AF_INET6) {  in cma_iboe_set_mgid()
4556 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_iboe_set_mgid()
4558 		mgid->raw[0] =  in cma_iboe_set_mgid()
4560 		mgid->raw[1] =  in cma_iboe_set_mgid()
4562 		mgid->raw[2] = 0;  in cma_iboe_set_mgid()
4563 		mgid->raw[3] = 0;  in cma_iboe_set_mgid()
4564 		mgid->raw[4] = 0;  in cma_iboe_set_mgid()
4565 		mgid->raw[5] = 0;  in cma_iboe_set_mgid()
4566 		mgid->raw[6] = 0;  in cma_iboe_set_mgid()
4567 		mgid->raw[7] = 0;  in cma_iboe_set_mgid()
4568 		mgid->raw[8] = 0;  in cma_iboe_set_mgid()
4569 		mgid->raw[9] = 0;  in cma_iboe_set_mgid()
4570 		mgid->raw[10] = 0xff;  in cma_iboe_set_mgid()
4571 		mgid->raw[11] = 0xff;  in cma_iboe_set_mgid()
4572 		*(__be32 *)(&mgid->raw[12]) = sin->sin_addr.s_addr;  in cma_iboe_set_mgid()
4580 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iboe_join_multicast()
4582 	struct sockaddr *addr = (struct sockaddr *)&mc->addr;  in cma_iboe_join_multicast()
4588 	send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);  in cma_iboe_join_multicast()
4591 		return -EINVAL;  in cma_iboe_join_multicast()
4595 		return -ENOMEM;  in cma_iboe_join_multicast()
4597 	gid_type = id_priv->cma_dev->default_gid_type[id_priv->id.port_num -  in cma_iboe_join_multicast()
4598 		   rdma_start_port(id_priv->cma_dev->device)];  in cma_iboe_join_multicast()
4602 	if (id_priv->id.ps == RDMA_PS_UDP)  in cma_iboe_join_multicast()
4605 	if (dev_addr->bound_dev_if)  in cma_iboe_join_multicast()
4606 		ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_iboe_join_multicast()
4608 		err = -ENODEV;  in cma_iboe_join_multicast()
4613 	ib.rec.mtu = iboe_get_mtu(ndev->mtu);  in cma_iboe_join_multicast()
4615 	if (addr->sa_family == AF_INET) {  in cma_iboe_join_multicast()
4625 			err = -ENOTSUPP;  in cma_iboe_join_multicast()
4630 			err = -EINVAL;  in cma_iboe_join_multicast()
4633 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_iboe_join_multicast()
4635 	work->id = id_priv;  in cma_iboe_join_multicast()
4636 	INIT_WORK(&work->work, cma_work_handler);  in cma_iboe_join_multicast()
4637 	cma_make_mc_event(0, id_priv, &ib, &work->event, mc);  in cma_iboe_join_multicast()
4640 	queue_work(cma_wq, &work->work);  in cma_iboe_join_multicast()
4648 int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,  in rdma_join_multicast()  argument
4652 		container_of(id, struct rdma_id_private, id);  in rdma_join_multicast()
4657 	if (WARN_ON(id->qp))  in rdma_join_multicast()
4658 		return -EINVAL;  in rdma_join_multicast()
4661 	if (!id->device || (READ_ONCE(id_priv->state) != RDMA_CM_ADDR_BOUND &&  in rdma_join_multicast()
4662 			    READ_ONCE(id_priv->state) != RDMA_CM_ADDR_RESOLVED))  in rdma_join_multicast()
4663 		return -EINVAL;  in rdma_join_multicast()
4667 		return -ENOMEM;  in rdma_join_multicast()
4669 	memcpy(&mc->addr, addr, rdma_addr_size(addr));  in rdma_join_multicast()
4670 	mc->context = context;  in rdma_join_multicast()
4671 	mc->id_priv = id_priv;  in rdma_join_multicast()
4672 	mc->join_state = join_state;  in rdma_join_multicast()
4674 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_join_multicast()
4678 	} else if (rdma_cap_ib_mcast(id->device, id->port_num)) {  in rdma_join_multicast()
4683 		ret = -ENOSYS;  in rdma_join_multicast()
4687 	spin_lock(&id_priv->lock);  in rdma_join_multicast()
4688 	list_add(&mc->list, &id_priv->mc_list);  in rdma_join_multicast()
4689 	spin_unlock(&id_priv->lock);  in rdma_join_multicast()
4698 void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr)  in rdma_leave_multicast()  argument
4703 	id_priv = container_of(id, struct rdma_id_private, id);  in rdma_leave_multicast()
4704 	spin_lock_irq(&id_priv->lock);  in rdma_leave_multicast()
4705 	list_for_each_entry(mc, &id_priv->mc_list, list) {  in rdma_leave_multicast()
4706 		if (memcmp(&mc->addr, addr, rdma_addr_size(addr)) != 0)  in rdma_leave_multicast()
4708 		list_del(&mc->list);  in rdma_leave_multicast()
4709 		spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
4711 		WARN_ON(id_priv->cma_dev->device != id->device);  in rdma_leave_multicast()
4715 	spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
4724 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_netdev_change()
4726 	if ((dev_addr->bound_dev_if == ndev->ifindex) &&  in cma_netdev_change()
4727 	    (net_eq(dev_net(ndev), dev_addr->net)) &&  in cma_netdev_change()
4728 	    memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) {  in cma_netdev_change()
4729 		pr_info("RDMA CM addr change for ndev %s used by id %p\n",  in cma_netdev_change()
4730 			ndev->name, &id_priv->id);  in cma_netdev_change()
4733 			return -ENOMEM;  in cma_netdev_change()
4735 		INIT_WORK(&work->work, cma_work_handler);  in cma_netdev_change()
4736 		work->id = id_priv;  in cma_netdev_change()
4737 		work->event.event = RDMA_CM_EVENT_ADDR_CHANGE;  in cma_netdev_change()
4739 		queue_work(cma_wq, &work->work);  in cma_netdev_change()
4761 		list_for_each_entry(id_priv, &cma_dev->id_list, list) {  in cma_netdev_callback()
4776 static int cma_add_one(struct ib_device *device)  in cma_add_one()  argument
4786 		return -ENOMEM;  in cma_add_one()
4788 	cma_dev->device = device;  in cma_add_one()
4789 	cma_dev->default_gid_type = kcalloc(device->phys_port_cnt,  in cma_add_one()
4790 					    sizeof(*cma_dev->default_gid_type),  in cma_add_one()
4792 	if (!cma_dev->default_gid_type) {  in cma_add_one()
4793 		ret = -ENOMEM;  in cma_add_one()
4797 	cma_dev->default_roce_tos = kcalloc(device->phys_port_cnt,  in cma_add_one()
4798 					    sizeof(*cma_dev->default_roce_tos),  in cma_add_one()
4800 	if (!cma_dev->default_roce_tos) {  in cma_add_one()
4801 		ret = -ENOMEM;  in cma_add_one()
4805 	rdma_for_each_port (device, i) {  in cma_add_one()
4806 		supported_gids = roce_gid_type_mask_support(device, i);  in cma_add_one()
4809 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
4812 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
4814 		cma_dev->default_roce_tos[i - rdma_start_port(device)] = 0;  in cma_add_one()
4817 	init_completion(&cma_dev->comp);  in cma_add_one()
4818 	refcount_set(&cma_dev->refcount, 1);  in cma_add_one()
4819 	INIT_LIST_HEAD(&cma_dev->id_list);  in cma_add_one()
4820 	ib_set_client_data(device, &cma_client, cma_dev);  in cma_add_one()
4823 	list_add_tail(&cma_dev->list, &dev_list);  in cma_add_one()
4828 	trace_cm_add_one(device);  in cma_add_one()
4832 	kfree(cma_dev->default_gid_type);  in cma_add_one()
4845 	mutex_lock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4846 	/* Record that we want to remove the device */  in cma_send_device_removal_put()
4847 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_send_device_removal_put()
4848 	state = id_priv->state;  in cma_send_device_removal_put()
4850 		spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
4851 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4855 	id_priv->state = RDMA_CM_DEVICE_REMOVAL;  in cma_send_device_removal_put()
4856 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
4864 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4869 	mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
4882 	while (!list_empty(&cma_dev->id_list)) {  in cma_process_remove()
4884 			&cma_dev->id_list, struct rdma_id_private, list);  in cma_process_remove()
4886 		list_del(&id_priv->listen_list);  in cma_process_remove()
4887 		list_del_init(&id_priv->list);  in cma_process_remove()
4898 	wait_for_completion(&cma_dev->comp);  in cma_process_remove()
4901 static void cma_remove_one(struct ib_device *device, void *client_data)  in cma_remove_one()  argument
4905 	trace_cm_remove_one(device);  in cma_remove_one()
4908 	list_del(&cma_dev->list);  in cma_remove_one()
4912 	kfree(cma_dev->default_roce_tos);  in cma_remove_one()
4913 	kfree(cma_dev->default_gid_type);  in cma_remove_one()
4921 	xa_init(&pernet->tcp_ps);  in cma_init_net()
4922 	xa_init(&pernet->udp_ps);  in cma_init_net()
4923 	xa_init(&pernet->ipoib_ps);  in cma_init_net()
4924 	xa_init(&pernet->ib_ps);  in cma_init_net()
4933 	WARN_ON(!xa_empty(&pernet->tcp_ps));  in cma_exit_net()
4934 	WARN_ON(!xa_empty(&pernet->udp_ps));  in cma_exit_net()
4935 	WARN_ON(!xa_empty(&pernet->ipoib_ps));  in cma_exit_net()
4936 	WARN_ON(!xa_empty(&pernet->ib_ps));  in cma_exit_net()
4942 	.id = &cma_pernet_id,
4965 		return -ENOMEM;  in cma_init()