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.
89 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_reject_msg()
92 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_reject_msg()
101  * rdma_is_consumer_reject - return true if the consumer rejected the connect
108 	if (rdma_ib_or_roce(id->device, id->port_num))  in rdma_is_consumer_reject()
111 	if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_is_consumer_reject()
112 		return reason == -ECONNREFUSED;  in rdma_is_consumer_reject()
123 	if (rdma_is_consumer_reject(id, ev->status)) {  in rdma_consumer_reject_data()
124 		*data_len = ev->param.conn.private_data_len;  in rdma_consumer_reject_data()
125 		p = ev->param.conn.private_data;  in rdma_consumer_reject_data()
135  * rdma_iw_cm_id() - return the iw_cm_id pointer for this cm_id.
143 	if (id->device->node_type == RDMA_NODE_RNIC)  in rdma_iw_cm_id()
144 		return id_priv->cm_id.iw;  in rdma_iw_cm_id()
150  * rdma_res_to_id() - return the rdma_cm_id pointer for this restrack.
158 	return &id_priv->id;  in rdma_res_to_id()
200 		return &pernet->tcp_ps;  in cma_pernet_xa()
202 		return &pernet->udp_ps;  in cma_pernet_xa()
204 		return &pernet->ipoib_ps;  in cma_pernet_xa()
206 		return &pernet->ib_ps;  in cma_pernet_xa()
263 	refcount_inc(&cma_dev->refcount);  in cma_dev_get()
268 	if (refcount_dec_and_test(&cma_dev->refcount))  in cma_dev_put()
269 		complete(&cma_dev->comp);  in cma_dev_put()
281 		if (filter(cma_dev->device, cookie)) {  in cma_enum_devices_by_ibdev()
295 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_gid_type()
296 		return -EINVAL;  in cma_get_default_gid_type()
298 	return cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)];  in cma_get_default_gid_type()
307 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_gid_type()
308 		return -EINVAL;  in cma_set_default_gid_type()
311 	    rdma_protocol_roce_eth_encap(cma_dev->device, port))  in cma_set_default_gid_type()
314 	supported_gids = roce_gid_type_mask_support(cma_dev->device, port);  in cma_set_default_gid_type()
317 		return -EINVAL;  in cma_set_default_gid_type()
319 	cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_gid_type()
327 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_get_default_roce_tos()
328 		return -EINVAL;  in cma_get_default_roce_tos()
330 	return cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)];  in cma_get_default_roce_tos()
336 	if (!rdma_is_port_valid(cma_dev->device, port))  in cma_set_default_roce_tos()
337 		return -EINVAL;  in cma_set_default_roce_tos()
339 	cma_dev->default_roce_tos[port - rdma_start_port(cma_dev->device)] =  in cma_set_default_roce_tos()
346 	return cma_dev->device;  in cma_get_ib_dev()
421 		lockdep_assert_held(&id_priv->handler_mutex);  in cma_comp_exch()
423 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_comp_exch()
424 	if ((ret = (id_priv->state == comp)))  in cma_comp_exch()
425 		id_priv->state = exch;  in cma_comp_exch()
426 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_comp_exch()
432 	return hdr->ip_version >> 4;  in cma_get_ip_ver()
437 	hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF);  in cma_set_ip_ver()
442 	return (struct sockaddr *)&id_priv->id.route.addr.src_addr;  in cma_src_addr()
447 	return (struct sockaddr *)&id_priv->id.route.addr.dst_addr;  in cma_dst_addr()
460 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
463 						*(__be32 *)(mgid->raw + 12));  in cma_igmp_send()
467 	return (in_dev) ? 0 : -ENODEV;  in cma_igmp_send()
474 		&entry_b->id_list, struct rdma_id_private, id_list_entry);  in compare_netdev_and_ip()
475 	int ifindex_b = id_priv->id.route.addr.dev_addr.bound_dev_if;  in compare_netdev_and_ip()
479 		return (ifindex_a > ifindex_b) ? 1 : -1;  in compare_netdev_and_ip()
481 	if (sa->sa_family != sb->sa_family)  in compare_netdev_and_ip()
482 		return sa->sa_family - sb->sa_family;  in compare_netdev_and_ip()
484 	if (sa->sa_family == AF_INET &&  in compare_netdev_and_ip()
486 		return memcmp(&((struct sockaddr_in *)sa)->sin_addr,  in compare_netdev_and_ip()
487 			      &((struct sockaddr_in *)sb)->sin_addr,  in compare_netdev_and_ip()
488 			      sizeof(((struct sockaddr_in *)sa)->sin_addr));  in compare_netdev_and_ip()
491 	if (sa->sa_family == AF_INET6 &&  in compare_netdev_and_ip()
493 		return ipv6_addr_cmp(&((struct sockaddr_in6 *)sa)->sin6_addr,  in compare_netdev_and_ip()
494 				     &((struct sockaddr_in6 *)sb)->sin6_addr);  in compare_netdev_and_ip()
497 	return -1;  in compare_netdev_and_ip()
509 		return -ENOMEM;  in cma_add_id_to_tree()
516 			node_id_priv->id.route.addr.dev_addr.bound_dev_if,  in cma_add_id_to_tree()
521 			new = &((*new)->rb_left);  in cma_add_id_to_tree()
523 			new = &((*new)->rb_right);  in cma_add_id_to_tree()
525 			list_add_tail(&node_id_priv->id_list_entry,  in cma_add_id_to_tree()
526 				      &this->id_list);  in cma_add_id_to_tree()
532 	INIT_LIST_HEAD(&node->id_list);  in cma_add_id_to_tree()
533 	list_add_tail(&node_id_priv->id_list_entry, &node->id_list);  in cma_add_id_to_tree()
535 	rb_link_node(&node->rb_node, parent, new);  in cma_add_id_to_tree()
536 	rb_insert_color(&node->rb_node, &id_table);  in cma_add_id_to_tree()
546 	struct rb_node *node = root->rb_node;  in node_from_ndev_ip()
554 			node = node->rb_left;  in node_from_ndev_ip()
556 			node = node->rb_right;  in node_from_ndev_ip()
570 	if (list_empty(&id_priv->id_list_entry))  in cma_remove_id_from_tree()
574 				 id_priv->id.route.addr.dev_addr.bound_dev_if,  in cma_remove_id_from_tree()
579 	list_del_init(&id_priv->id_list_entry);  in cma_remove_id_from_tree()
580 	if (list_empty(&data->id_list)) {  in cma_remove_id_from_tree()
581 		rb_erase(&data->rb_node, &id_table);  in cma_remove_id_from_tree()
592 	id_priv->cma_dev = cma_dev;  in _cma_attach_to_dev()
593 	id_priv->id.device = cma_dev->device;  in _cma_attach_to_dev()
594 	id_priv->id.route.addr.dev_addr.transport =  in _cma_attach_to_dev()
595 		rdma_node_get_transport(cma_dev->device->node_type);  in _cma_attach_to_dev()
596 	list_add_tail(&id_priv->device_item, &cma_dev->id_list);  in _cma_attach_to_dev()
598 	trace_cm_id_attach(id_priv, cma_dev->device);  in _cma_attach_to_dev()
605 	id_priv->gid_type =  in cma_attach_to_dev()
606 		cma_dev->default_gid_type[id_priv->id.port_num -  in cma_attach_to_dev()
607 					  rdma_start_port(cma_dev->device)];  in cma_attach_to_dev()
613 	list_del_init(&id_priv->device_item);  in cma_release_dev()
614 	cma_dev_put(id_priv->cma_dev);  in cma_release_dev()
615 	id_priv->cma_dev = NULL;  in cma_release_dev()
616 	id_priv->id.device = NULL;  in cma_release_dev()
617 	if (id_priv->id.route.addr.dev_addr.sgid_attr) {  in cma_release_dev()
618 		rdma_put_gid_attr(id_priv->id.route.addr.dev_addr.sgid_attr);  in cma_release_dev()
619 		id_priv->id.route.addr.dev_addr.sgid_attr = NULL;  in cma_release_dev()
626 	return id_priv->id.route.addr.src_addr.ss_family;  in cma_family()
634 	switch (id_priv->id.ps) {  in cma_set_default_qkey()
637 		id_priv->qkey = RDMA_UDP_QKEY;  in cma_set_default_qkey()
640 		ib_addr_get_mgid(&id_priv->id.route.addr.dev_addr, &rec.mgid);  in cma_set_default_qkey()
641 		ret = ib_sa_get_mcmember_rec(id_priv->id.device,  in cma_set_default_qkey()
642 					     id_priv->id.port_num, &rec.mgid,  in cma_set_default_qkey()
645 			id_priv->qkey = be32_to_cpu(rec.qkey);  in cma_set_default_qkey()
656 	    (id_priv->qkey && (id_priv->qkey != qkey)))  in cma_set_qkey()
657 		return -EINVAL;  in cma_set_qkey()
659 	id_priv->qkey = qkey;  in cma_set_qkey()
665 	dev_addr->dev_type = ARPHRD_INFINIBAND;  in cma_translate_ib()
666 	rdma_addr_set_sgid(dev_addr, (union ib_gid *) &sib->sib_addr);  in cma_translate_ib()
667 	ib_addr_set_pkey(dev_addr, ntohs(sib->sib_pkey));  in cma_translate_ib()
674 	if (addr->sa_family != AF_IB) {  in cma_translate_addr()
690 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_validate_port()
691 	const struct ib_gid_attr *sgid_attr = ERR_PTR(-ENODEV);  in cma_validate_port()
692 	int bound_if_index = dev_addr->bound_dev_if;  in cma_validate_port()
693 	int dev_type = dev_addr->dev_type;  in cma_validate_port()
697 	if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))  in cma_validate_port()
719 		ndev = rcu_dereference(sgid_attr->ndev);  in cma_validate_port()
720 		if (ndev->ifindex != bound_if_index) {  in cma_validate_port()
721 			pdev = dev_get_by_index_rcu(dev_addr->net, bound_if_index);  in cma_validate_port()
725 					if (ndev->ifindex == pdev->ifindex)  in cma_validate_port()
726 						bound_if_index = pdev->ifindex;  in cma_validate_port()
730 					if (bound_if_index == pdev->ifindex)  in cma_validate_port()
731 						bound_if_index = ndev->ifindex;  in cma_validate_port()
735 		if (!net_eq(dev_net(ndev), dev_addr->net) ||  in cma_validate_port()
736 		    ndev->ifindex != bound_if_index) {  in cma_validate_port()
738 			sgid_attr = ERR_PTR(-ENODEV);  in cma_validate_port()
749 	if (device->ops.driver_id == RDMA_DRIVER_RXE) {  in cma_validate_port()
752 			ndev = dev_get_by_index(dev_addr->net, bound_if_index);  in cma_validate_port()
758 			ndev = dev_get_by_index(dev_addr->net, bound_if_index);  in cma_validate_port()
775 	WARN_ON(id_priv->id.route.addr.dev_addr.sgid_attr);  in cma_bind_sgid_attr()
776 	id_priv->id.route.addr.dev_addr.sgid_attr = sgid_attr;  in cma_bind_sgid_attr()
780  * cma_acquire_dev_by_src_ip - Acquire cma device, port, gid attribute
790 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_acquire_dev_by_src_ip()
795 	int ret = -ENODEV;  in cma_acquire_dev_by_src_ip()
798 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_acquire_dev_by_src_ip()
799 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_acquire_dev_by_src_ip()
800 		return -EINVAL;  in cma_acquire_dev_by_src_ip()
802 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_acquire_dev_by_src_ip()
805 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_acquire_dev_by_src_ip()
810 		rdma_for_each_port (cma_dev->device, port) {  in cma_acquire_dev_by_src_ip()
811 			gidp = rdma_protocol_roce(cma_dev->device, port) ?  in cma_acquire_dev_by_src_ip()
813 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_acquire_dev_by_src_ip()
814 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_acquire_dev_by_src_ip()
817 				id_priv->id.port_num = port;  in cma_acquire_dev_by_src_ip()
831  * cma_ib_acquire_dev - Acquire cma device, port and SGID attribute
845 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_acquire_dev()
850 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_ib_acquire_dev()
851 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_ib_acquire_dev()
852 		return -EINVAL;  in cma_ib_acquire_dev()
854 	if (rdma_protocol_roce(req->device, req->port))  in cma_ib_acquire_dev()
855 		rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_ib_acquire_dev()
858 		memcpy(&gid, dev_addr->src_dev_addr +  in cma_ib_acquire_dev()
861 	gid_type = listen_id_priv->cma_dev->default_gid_type[req->port - 1];  in cma_ib_acquire_dev()
862 	sgid_attr = cma_validate_port(req->device, req->port,  in cma_ib_acquire_dev()
867 	id_priv->id.port_num = req->port;  in cma_ib_acquire_dev()
870 	 * of cma_dev->id_list such as cma_netdev_callback() and  in cma_ib_acquire_dev()
874 	cma_attach_to_dev(id_priv, listen_id_priv->cma_dev);  in cma_ib_acquire_dev()
876 	rdma_restrack_add(&id_priv->res);  in cma_ib_acquire_dev()
883 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iw_acquire_dev()
887 	int ret = -ENODEV;  in cma_iw_acquire_dev()
891 	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&  in cma_iw_acquire_dev()
892 	    id_priv->id.ps == RDMA_PS_IPOIB)  in cma_iw_acquire_dev()
893 		return -EINVAL;  in cma_iw_acquire_dev()
895 	memcpy(&gid, dev_addr->src_dev_addr +  in cma_iw_acquire_dev()
900 	cma_dev = listen_id_priv->cma_dev;  in cma_iw_acquire_dev()
901 	port = listen_id_priv->id.port_num;  in cma_iw_acquire_dev()
902 	gid_type = listen_id_priv->gid_type;  in cma_iw_acquire_dev()
903 	sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
906 		id_priv->id.port_num = port;  in cma_iw_acquire_dev()
913 		rdma_for_each_port (cma_dev->device, port) {  in cma_iw_acquire_dev()
914 			if (listen_id_priv->cma_dev == cma_dev &&  in cma_iw_acquire_dev()
915 			    listen_id_priv->id.port_num == port)  in cma_iw_acquire_dev()
918 			gid_type = cma_dev->default_gid_type[port - 1];  in cma_iw_acquire_dev()
919 			sgid_attr = cma_validate_port(cma_dev->device, port,  in cma_iw_acquire_dev()
922 				id_priv->id.port_num = port;  in cma_iw_acquire_dev()
933 		rdma_restrack_add(&id_priv->res);  in cma_iw_acquire_dev()
956 	dgid = (union ib_gid *) &addr->sib_addr;  in cma_resolve_ib_dev()
957 	pkey = ntohs(addr->sib_pkey);  in cma_resolve_ib_dev()
961 		rdma_for_each_port (cur_dev->device, p) {  in cma_resolve_ib_dev()
962 			if (!rdma_cap_af_ib(cur_dev->device, p))  in cma_resolve_ib_dev()
965 			if (ib_find_cached_pkey(cur_dev->device, p, pkey, &index))  in cma_resolve_ib_dev()
968 			if (ib_get_cached_port_state(cur_dev->device, p, &port_state))  in cma_resolve_ib_dev()
971 			for (i = 0; i < cur_dev->device->port_data[p].immutable.gid_tbl_len;  in cma_resolve_ib_dev()
973 				ret = rdma_query_gid(cur_dev->device, p, i,  in cma_resolve_ib_dev()
981 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
986 				    dgid->global.subnet_prefix) &&  in cma_resolve_ib_dev()
990 					id_priv->id.port_num = p;  in cma_resolve_ib_dev()
997 	return -ENODEV;  in cma_resolve_ib_dev()
1001 	rdma_restrack_add(&id_priv->res);  in cma_resolve_ib_dev()
1004 	memcpy(&addr->sib_addr, &sgid, sizeof(sgid));  in cma_resolve_ib_dev()
1005 	cma_translate_ib(addr, &id_priv->id.route.addr.dev_addr);  in cma_resolve_ib_dev()
1011 	refcount_inc(&id_priv->refcount);  in cma_id_get()
1016 	if (refcount_dec_and_test(&id_priv->refcount))  in cma_id_put()
1017 		complete(&id_priv->comp);  in cma_id_put()
1029 		return ERR_PTR(-ENOMEM);  in __rdma_create_id()
1031 	id_priv->state = RDMA_CM_IDLE;  in __rdma_create_id()
1032 	id_priv->id.context = context;  in __rdma_create_id()
1033 	id_priv->id.event_handler = event_handler;  in __rdma_create_id()
1034 	id_priv->id.ps = ps;  in __rdma_create_id()
1035 	id_priv->id.qp_type = qp_type;  in __rdma_create_id()
1036 	id_priv->tos_set = false;  in __rdma_create_id()
1037 	id_priv->timeout_set = false;  in __rdma_create_id()
1038 	id_priv->min_rnr_timer_set = false;  in __rdma_create_id()
1039 	id_priv->gid_type = IB_GID_TYPE_IB;  in __rdma_create_id()
1040 	spin_lock_init(&id_priv->lock);  in __rdma_create_id()
1041 	mutex_init(&id_priv->qp_mutex);  in __rdma_create_id()
1042 	init_completion(&id_priv->comp);  in __rdma_create_id()
1043 	refcount_set(&id_priv->refcount, 1);  in __rdma_create_id()
1044 	mutex_init(&id_priv->handler_mutex);  in __rdma_create_id()
1045 	INIT_LIST_HEAD(&id_priv->device_item);  in __rdma_create_id()
1046 	INIT_LIST_HEAD(&id_priv->id_list_entry);  in __rdma_create_id()
1047 	INIT_LIST_HEAD(&id_priv->listen_list);  in __rdma_create_id()
1048 	INIT_LIST_HEAD(&id_priv->mc_list);  in __rdma_create_id()
1049 	get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);  in __rdma_create_id()
1050 	id_priv->id.route.addr.dev_addr.net = get_net(net);  in __rdma_create_id()
1051 	id_priv->seq_num &= 0x00ffffff;  in __rdma_create_id()
1052 	INIT_WORK(&id_priv->id.net_work, cma_netevent_work_handler);  in __rdma_create_id()
1054 	rdma_restrack_new(&id_priv->res, RDMA_RESTRACK_CM_ID);  in __rdma_create_id()
1056 		rdma_restrack_parent_name(&id_priv->res, &parent->res);  in __rdma_create_id()
1072 	rdma_restrack_set_name(&ret->res, caller);  in __rdma_create_kernel_id()
1073 	return &ret->id;  in __rdma_create_kernel_id()
1084 	ret = __rdma_create_id(current->nsproxy->net_ns, event_handler, context,  in rdma_create_user_id()
1089 	rdma_restrack_set_name(&ret->res, NULL);  in rdma_create_user_id()
1090 	return &ret->id;  in rdma_create_user_id()
1100 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_ud_qp()
1126 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_init_conn_qp()
1141 	if (id->device != pd->device) {  in rdma_create_qp()
1142 		ret = -EINVAL;  in rdma_create_qp()
1146 	qp_init_attr->port_num = id->port_num;  in rdma_create_qp()
1153 	if (id->qp_type == IB_QPT_UD)  in rdma_create_qp()
1160 	id->qp = qp;  in rdma_create_qp()
1161 	id_priv->qp_num = qp->qp_num;  in rdma_create_qp()
1162 	id_priv->srq = (qp->srq != NULL);  in rdma_create_qp()
1179 	mutex_lock(&id_priv->qp_mutex);  in rdma_destroy_qp()
1180 	ib_destroy_qp(id_priv->id.qp);  in rdma_destroy_qp()
1181 	id_priv->id.qp = NULL;  in rdma_destroy_qp()
1182 	mutex_unlock(&id_priv->qp_mutex);  in rdma_destroy_qp()
1192 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
1193 	if (!id_priv->id.qp) {  in cma_modify_qp_rtr()
1200 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1204 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1209 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rtr()
1213 	BUG_ON(id_priv->cma_dev->device != id_priv->id.device);  in cma_modify_qp_rtr()
1216 		qp_attr.max_dest_rd_atomic = conn_param->responder_resources;  in cma_modify_qp_rtr()
1217 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rtr()
1219 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rtr()
1229 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1230 	if (!id_priv->id.qp) {  in cma_modify_qp_rts()
1236 	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);  in cma_modify_qp_rts()
1241 		qp_attr.max_rd_atomic = conn_param->initiator_depth;  in cma_modify_qp_rts()
1242 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);  in cma_modify_qp_rts()
1244 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_rts()
1253 	mutex_lock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1254 	if (!id_priv->id.qp) {  in cma_modify_qp_err()
1260 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, IB_QP_STATE);  in cma_modify_qp_err()
1262 	mutex_unlock(&id_priv->qp_mutex);  in cma_modify_qp_err()
1269 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_ib_init_qp_attr()
1273 	if (rdma_cap_eth_ah(id_priv->id.device, id_priv->id.port_num))  in cma_ib_init_qp_attr()
1278 	ret = ib_find_cached_pkey(id_priv->id.device, id_priv->id.port_num,  in cma_ib_init_qp_attr()
1279 				  pkey, &qp_attr->pkey_index);  in cma_ib_init_qp_attr()
1283 	qp_attr->port_num = id_priv->id.port_num;  in cma_ib_init_qp_attr()
1286 	if (id_priv->id.qp_type == IB_QPT_UD) {  in cma_ib_init_qp_attr()
1291 		qp_attr->qkey = id_priv->qkey;  in cma_ib_init_qp_attr()
1294 		qp_attr->qp_access_flags = 0;  in cma_ib_init_qp_attr()
1307 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1308 		if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))  in rdma_init_qp_attr()
1311 			ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,  in rdma_init_qp_attr()
1314 		if (qp_attr->qp_state == IB_QPS_RTR)  in rdma_init_qp_attr()
1315 			qp_attr->rq_psn = id_priv->seq_num;  in rdma_init_qp_attr()
1316 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_init_qp_attr()
1317 		if (!id_priv->cm_id.iw) {  in rdma_init_qp_attr()
1318 			qp_attr->qp_access_flags = 0;  in rdma_init_qp_attr()
1321 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,  in rdma_init_qp_attr()
1323 		qp_attr->port_num = id_priv->id.port_num;  in rdma_init_qp_attr()
1326 		ret = -ENOSYS;  in rdma_init_qp_attr()
1329 	if ((*qp_attr_mask & IB_QP_TIMEOUT) && id_priv->timeout_set)  in rdma_init_qp_attr()
1330 		qp_attr->timeout = id_priv->timeout;  in rdma_init_qp_attr()
1332 	if ((*qp_attr_mask & IB_QP_MIN_RNR_TIMER) && id_priv->min_rnr_timer_set)  in rdma_init_qp_attr()
1333 		qp_attr->min_rnr_timer = id_priv->min_rnr_timer;  in rdma_init_qp_attr()
1341 	switch (addr->sa_family) {  in cma_zero_addr()
1343 		return ipv4_is_zeronet(((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_zero_addr()
1345 		return ipv6_addr_any(&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_zero_addr()
1347 		return ib_addr_any(&((struct sockaddr_ib *)addr)->sib_addr);  in cma_zero_addr()
1355 	switch (addr->sa_family) {  in cma_loopback_addr()
1358 			((struct sockaddr_in *)addr)->sin_addr.s_addr);  in cma_loopback_addr()
1361 			&((struct sockaddr_in6 *)addr)->sin6_addr);  in cma_loopback_addr()
1364 			&((struct sockaddr_ib *)addr)->sib_addr);  in cma_loopback_addr()
1377 	if (src->sa_family != dst->sa_family)  in cma_addr_cmp()
1378 		return -1;  in cma_addr_cmp()
1380 	switch (src->sa_family) {  in cma_addr_cmp()
1382 		return ((struct sockaddr_in *)src)->sin_addr.s_addr !=  in cma_addr_cmp()
1383 		       ((struct sockaddr_in *)dst)->sin_addr.s_addr;  in cma_addr_cmp()
1389 		if (ipv6_addr_cmp(&src_addr6->sin6_addr,  in cma_addr_cmp()
1390 					  &dst_addr6->sin6_addr))  in cma_addr_cmp()
1392 		link_local = ipv6_addr_type(&dst_addr6->sin6_addr) &  in cma_addr_cmp()
1395 		return link_local ? (src_addr6->sin6_scope_id !=  in cma_addr_cmp()
1396 				     dst_addr6->sin6_scope_id) :  in cma_addr_cmp()
1401 		return ib_addr_cmp(&((struct sockaddr_ib *) src)->sib_addr,  in cma_addr_cmp()
1402 				   &((struct sockaddr_ib *) dst)->sib_addr);  in cma_addr_cmp()
1410 	switch (addr->sa_family) {  in cma_port()
1412 		return ((struct sockaddr_in *) addr)->sin_port;  in cma_port()
1414 		return ((struct sockaddr_in6 *) addr)->sin6_port;  in cma_port()
1417 		return htons((u16) (be64_to_cpu(sib->sib_sid) &  in cma_port()
1418 				    be64_to_cpu(sib->sib_sid_mask)));  in cma_port()
1436 	listen_ib = (struct sockaddr_ib *) &listen_id->route.addr.src_addr;  in cma_save_ib_info()
1439 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1441 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1442 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1443 			memcpy(&ib->sib_addr, &path->sgid, 16);  in cma_save_ib_info()
1444 			ib->sib_sid = path->service_id;  in cma_save_ib_info()
1445 			ib->sib_scope_id = 0;  in cma_save_ib_info()
1447 			ib->sib_pkey = listen_ib->sib_pkey;  in cma_save_ib_info()
1448 			ib->sib_flowinfo = listen_ib->sib_flowinfo;  in cma_save_ib_info()
1449 			ib->sib_addr = listen_ib->sib_addr;  in cma_save_ib_info()
1450 			ib->sib_sid = listen_ib->sib_sid;  in cma_save_ib_info()
1451 			ib->sib_scope_id = listen_ib->sib_scope_id;  in cma_save_ib_info()
1453 		ib->sib_sid_mask = cpu_to_be64(0xffffffffffffffffULL);  in cma_save_ib_info()
1457 		ib->sib_family = AF_IB;  in cma_save_ib_info()
1459 			ib->sib_pkey = path->pkey;  in cma_save_ib_info()
1460 			ib->sib_flowinfo = path->flow_label;  in cma_save_ib_info()
1461 			memcpy(&ib->sib_addr, &path->dgid, 16);  in cma_save_ib_info()
1474 			.sin_addr.s_addr = hdr->dst_addr.ip4.addr,  in cma_save_ip4_info()
1482 			.sin_addr.s_addr = hdr->src_addr.ip4.addr,  in cma_save_ip4_info()
1483 			.sin_port = hdr->port,  in cma_save_ip4_info()
1496 			.sin6_addr = hdr->dst_addr.ip6,  in cma_save_ip6_info()
1504 			.sin6_addr = hdr->src_addr.ip6,  in cma_save_ip6_info()
1505 			.sin6_port = hdr->port,  in cma_save_ip6_info()
1523 	hdr = ib_event->private_data;  in cma_save_ip_info()
1524 	if (hdr->cma_version != CMA_VERSION)  in cma_save_ip_info()
1525 		return -EINVAL;  in cma_save_ip_info()
1539 		return -EAFNOSUPPORT;  in cma_save_ip_info()
1552 		if (ib_event->event == IB_CM_REQ_RECEIVED)  in cma_save_net_info()
1554 					 ib_event->param.req_rcvd.primary_path);  in cma_save_net_info()
1555 		else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in cma_save_net_info()
1567 		&ib_event->param.req_rcvd;  in cma_save_req_info()
1569 		&ib_event->param.sidr_req_rcvd;  in cma_save_req_info()
1571 	switch (ib_event->event) {  in cma_save_req_info()
1573 		req->device	= req_param->listen_id->device;  in cma_save_req_info()
1574 		req->port	= req_param->port;  in cma_save_req_info()
1575 		memcpy(&req->local_gid, &req_param->primary_path->sgid,  in cma_save_req_info()
1576 		       sizeof(req->local_gid));  in cma_save_req_info()
1577 		req->has_gid	= true;  in cma_save_req_info()
1578 		req->service_id = req_param->primary_path->service_id;  in cma_save_req_info()
1579 		req->pkey	= be16_to_cpu(req_param->primary_path->pkey);  in cma_save_req_info()
1580 		if (req->pkey != req_param->bth_pkey)  in cma_save_req_info()
1583 					    req_param->bth_pkey, req->pkey);  in cma_save_req_info()
1586 		req->device	= sidr_param->listen_id->device;  in cma_save_req_info()
1587 		req->port	= sidr_param->port;  in cma_save_req_info()
1588 		req->has_gid	= false;  in cma_save_req_info()
1589 		req->service_id	= sidr_param->service_id;  in cma_save_req_info()
1590 		req->pkey	= sidr_param->pkey;  in cma_save_req_info()
1591 		if (req->pkey != sidr_param->bth_pkey)  in cma_save_req_info()
1594 					    sidr_param->bth_pkey, req->pkey);  in cma_save_req_info()
1597 		return -EINVAL;  in cma_save_req_info()
1607 	__be32 daddr = dst_addr->sin_addr.s_addr,  in validate_ipv4_net_dev()
1608 	       saddr = src_addr->sin_addr.s_addr;  in validate_ipv4_net_dev()
1621 	fl4.flowi4_oif = net_dev->ifindex;  in validate_ipv4_net_dev()
1638 	const int strict = ipv6_addr_type(&dst_addr->sin6_addr) &  in validate_ipv6_net_dev()
1640 	struct rt6_info *rt = rt6_lookup(dev_net(net_dev), &dst_addr->sin6_addr,  in validate_ipv6_net_dev()
1641 					 &src_addr->sin6_addr, net_dev->ifindex,  in validate_ipv6_net_dev()
1648 	ret = rt->rt6i_idev->dev == net_dev;  in validate_ipv6_net_dev()
1666 	switch (daddr->sa_family) {  in validate_net_dev()
1668 		return saddr->sa_family == AF_INET &&  in validate_net_dev()
1672 		return saddr->sa_family == AF_INET6 &&  in validate_net_dev()
1686 	if (ib_event->event == IB_CM_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1687 		sgid_attr = ib_event->param.req_rcvd.ppath_sgid_attr;  in roce_get_net_dev_by_cm_event()
1688 	else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)  in roce_get_net_dev_by_cm_event()
1689 		sgid_attr = ib_event->param.sidr_req_rcvd.sgid_attr;  in roce_get_net_dev_by_cm_event()
1708 			(struct sockaddr *)&req->listen_addr_storage;  in cma_get_net_dev()
1709 	struct sockaddr *src_addr = (struct sockaddr *)&req->src_addr_storage;  in cma_get_net_dev()
1711 	const union ib_gid *gid = req->has_gid ? &req->local_gid : NULL;  in cma_get_net_dev()
1715 			       req->service_id);  in cma_get_net_dev()
1719 	if (rdma_protocol_roce(req->device, req->port))  in cma_get_net_dev()
1722 		net_dev = ib_get_net_dev_by_params(req->device, req->port,  in cma_get_net_dev()
1723 						   req->pkey,  in cma_get_net_dev()
1726 		return ERR_PTR(-ENODEV);  in cma_get_net_dev()
1743 	if (cma_any_addr(addr) && !id_priv->afonly)  in cma_match_private_data()
1746 	switch (addr->sa_family) {  in cma_match_private_data()
1748 		ip4_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr;  in cma_match_private_data()
1752 		    hdr->dst_addr.ip4.addr != ip4_addr)  in cma_match_private_data()
1756 		ip6_addr = ((struct sockaddr_in6 *)addr)->sin6_addr;  in cma_match_private_data()
1760 		    memcmp(&hdr->dst_addr.ip6, &ip6_addr, sizeof(ip6_addr)))  in cma_match_private_data()
1774 	struct ib_device *device = id->device;  in cma_protocol_roce()
1775 	const u32 port_num = id->port_num ?: rdma_start_port(device);  in cma_protocol_roce()
1783 			(const struct sockaddr *)&req->listen_addr_storage;  in cma_is_req_ipv6_ll()
1787 	return (daddr->sa_family == AF_INET6 &&  in cma_is_req_ipv6_ll()
1788 		(ipv6_addr_type(&daddr6->sin6_addr) & IPV6_ADDR_LINKLOCAL));  in cma_is_req_ipv6_ll()
1795 	const struct rdma_addr *addr = &id->route.addr;  in cma_match_net_dev()
1799 		return (!id->port_num || id->port_num == req->port) &&  in cma_match_net_dev()
1800 		       (addr->src_addr.ss_family == AF_IB);  in cma_match_net_dev()
1812 	if (net_eq(dev_net(net_dev), addr->dev_addr.net) &&  in cma_match_net_dev()
1813 	    (!!addr->dev_addr.bound_dev_if ==  in cma_match_net_dev()
1814 	     (addr->dev_addr.bound_dev_if == net_dev->ifindex)))  in cma_match_net_dev()
1832 		return ERR_PTR(-EINVAL);  in cma_find_listener()
1834 	hlist_for_each_entry(id_priv, &bind_list->owners, node) {  in cma_find_listener()
1835 		if (cma_match_private_data(id_priv, ib_event->private_data)) {  in cma_find_listener()
1836 			if (id_priv->id.device == cm_id->device &&  in cma_find_listener()
1837 			    cma_match_net_dev(&id_priv->id, net_dev, req))  in cma_find_listener()
1840 					    &id_priv->listen_list,  in cma_find_listener()
1842 				if (id_priv_dev->id.device == cm_id->device &&  in cma_find_listener()
1843 				    cma_match_net_dev(&id_priv_dev->id,  in cma_find_listener()
1850 	return ERR_PTR(-EINVAL);  in cma_find_listener()
1869 		if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) {  in cma_ib_id_from_event()
1900 		if (((*net_dev)->flags & IFF_UP) == 0) {  in cma_ib_id_from_event()
1901 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1906 				 (struct sockaddr *)&req->src_addr_storage,  in cma_ib_id_from_event()
1907 				 (struct sockaddr *)&req->listen_addr_storage)) {  in cma_ib_id_from_event()
1908 			id_priv = ERR_PTR(-EHOSTUNREACH);  in cma_ib_id_from_event()
1914 				rdma_ps_from_service_id(req->service_id),  in cma_ib_id_from_event()
1915 				cma_port_from_service_id(req->service_id));  in cma_ib_id_from_event()
1934 	if (rdma_cap_ib_sa(id_priv->id.device, id_priv->id.port_num)) {  in cma_cancel_route()
1935 		if (id_priv->query)  in cma_cancel_route()
1936 			ib_sa_cancel_query(id_priv->query_id, id_priv->query);  in cma_cancel_route()
1950 	list_del_init(&id_priv->listen_any_item);  in _cma_cancel_listens()
1952 	while (!list_empty(&id_priv->listen_list)) {  in _cma_cancel_listens()
1954 			list_first_entry(&id_priv->listen_list,  in _cma_cancel_listens()
1957 		list_del_init(&dev_id_priv->device_item);  in _cma_cancel_listens()
1958 		list_del_init(&dev_id_priv->listen_item);  in _cma_cancel_listens()
1961 		rdma_destroy_id(&dev_id_priv->id);  in _cma_cancel_listens()
1986 		rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);  in cma_cancel_operation()
1992 		if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)  in cma_cancel_operation()
2002 	struct rdma_bind_list *bind_list = id_priv->bind_list;  in cma_release_port()
2003 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_release_port()
2009 	hlist_del(&id_priv->node);  in cma_release_port()
2010 	if (hlist_empty(&bind_list->owners)) {  in cma_release_port()
2011 		cma_ps_remove(net, bind_list->ps, bind_list->port);  in cma_release_port()
2018 		       struct cma_multicast *mc)  in destroy_mc()  argument
2020 	bool send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);  in destroy_mc()
2022 	if (rdma_cap_ib_mcast(id_priv->id.device, id_priv->id.port_num))  in destroy_mc()
2023 		ib_sa_free_multicast(mc->sa_mc);  in destroy_mc()
2025 	if (rdma_protocol_roce(id_priv->id.device, id_priv->id.port_num)) {  in destroy_mc()
2027 			&id_priv->id.route.addr.dev_addr;  in destroy_mc()
2030 		if (dev_addr->bound_dev_if)  in destroy_mc()
2031 			ndev = dev_get_by_index(dev_addr->net,  in destroy_mc()
2032 						dev_addr->bound_dev_if);  in destroy_mc()
2037 			gid_type = id_priv->cma_dev->default_gid_type  in destroy_mc()
2038 					   [id_priv->id.port_num -  in destroy_mc()
2040 						    id_priv->cma_dev->device)];  in destroy_mc()
2041 			cma_iboe_set_mgid((struct sockaddr *)&mc->addr, &mgid,  in destroy_mc()
2047 		cancel_work_sync(&mc->iboe_join.work);  in destroy_mc()
2049 	kfree(mc);  in destroy_mc()
2054 	struct cma_multicast *mc;  in cma_leave_mc_groups()  local
2056 	while (!list_empty(&id_priv->mc_list)) {  in cma_leave_mc_groups()
2057 		mc = list_first_entry(&id_priv->mc_list, struct cma_multicast,  in cma_leave_mc_groups()
2059 		list_del(&mc->list);  in cma_leave_mc_groups()
2060 		destroy_mc(id_priv, mc);  in cma_leave_mc_groups()
2069 	rdma_restrack_del(&id_priv->res);  in _destroy_id()
2071 	if (id_priv->cma_dev) {  in _destroy_id()
2072 		if (rdma_cap_ib_cm(id_priv->id.device, 1)) {  in _destroy_id()
2073 			if (id_priv->cm_id.ib)  in _destroy_id()
2074 				ib_destroy_cm_id(id_priv->cm_id.ib);  in _destroy_id()
2075 		} else if (rdma_cap_iw_cm(id_priv->id.device, 1)) {  in _destroy_id()
2076 			if (id_priv->cm_id.iw)  in _destroy_id()
2077 				iw_destroy_cm_id(id_priv->cm_id.iw);  in _destroy_id()
2085 	wait_for_completion(&id_priv->comp);  in _destroy_id()
2087 	if (id_priv->internal_id)  in _destroy_id()
2088 		cma_id_put(id_priv->id.context);  in _destroy_id()
2090 	kfree(id_priv->id.route.path_rec);  in _destroy_id()
2091 	kfree(id_priv->id.route.path_rec_inbound);  in _destroy_id()
2092 	kfree(id_priv->id.route.path_rec_outbound);  in _destroy_id()
2094 	put_net(id_priv->id.route.addr.dev_addr.net);  in _destroy_id()
2103 	__releases(&idprv->handler_mutex)  in destroy_id_handler_unlock()
2116 	lockdep_assert_held(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
2117 	spin_lock_irqsave(&id_priv->lock, flags);  in destroy_id_handler_unlock()
2118 	state = id_priv->state;  in destroy_id_handler_unlock()
2119 	id_priv->state = RDMA_CM_DESTROYING;  in destroy_id_handler_unlock()
2120 	spin_unlock_irqrestore(&id_priv->lock, flags);  in destroy_id_handler_unlock()
2121 	mutex_unlock(&id_priv->handler_mutex);  in destroy_id_handler_unlock()
2130 	mutex_lock(&id_priv->handler_mutex);  in rdma_destroy_id()
2148 	ret = ib_send_cm_rtu(id_priv->cm_id.ib, NULL, 0);  in cma_rep_recv()
2157 	ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,  in cma_rep_recv()
2166 	event->param.conn.private_data = private_data;  in cma_set_rep_event_data()
2167 	event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;  in cma_set_rep_event_data()
2168 	event->param.conn.responder_resources = rep_data->responder_resources;  in cma_set_rep_event_data()
2169 	event->param.conn.initiator_depth = rep_data->initiator_depth;  in cma_set_rep_event_data()
2170 	event->param.conn.flow_control = rep_data->flow_control;  in cma_set_rep_event_data()
2171 	event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;  in cma_set_rep_event_data()
2172 	event->param.conn.srq = rep_data->srq;  in cma_set_rep_event_data()
2173 	event->param.conn.qp_num = rep_data->remote_qpn;  in cma_set_rep_event_data()
2175 	event->ece.vendor_id = rep_data->ece.vendor_id;  in cma_set_rep_event_data()
2176 	event->ece.attr_mod = rep_data->ece.attr_mod;  in cma_set_rep_event_data()
2184 	lockdep_assert_held(&id_priv->handler_mutex);  in cma_cm_event_handler()
2187 	ret = id_priv->id.event_handler(&id_priv->id, event);  in cma_cm_event_handler()
2195 	struct rdma_id_private *id_priv = cm_id->context;  in cma_ib_handler()
2200 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_handler()
2201 	state = READ_ONCE(id_priv->state);  in cma_ib_handler()
2202 	if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
2204 	    (ib_event->event == IB_CM_TIMEWAIT_EXIT &&  in cma_ib_handler()
2208 	switch (ib_event->event) {  in cma_ib_handler()
2212 		event.status = -ETIMEDOUT;  in cma_ib_handler()
2216 		    (id_priv->id.qp_type != IB_QPT_UD)) {  in cma_ib_handler()
2220 		if (id_priv->id.qp) {  in cma_ib_handler()
2227 		cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,  in cma_ib_handler()
2228 				       ib_event->private_data);  in cma_ib_handler()
2235 		event.status = -ETIMEDOUT;  in cma_ib_handler()
2251 		pr_debug_ratelimited("RDMA CM: REJECTED: %s\n", rdma_reject_msg(&id_priv->id,  in cma_ib_handler()
2252 										ib_event->param.rej_rcvd.reason));  in cma_ib_handler()
2254 		event.status = ib_event->param.rej_rcvd.reason;  in cma_ib_handler()
2256 		event.param.conn.private_data = ib_event->private_data;  in cma_ib_handler()
2261 		       ib_event->event);  in cma_ib_handler()
2267 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_handler()
2268 		id_priv->cm_id.ib = NULL;  in cma_ib_handler()
2273 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_handler()
2286 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_conn_id()
2287 	struct sa_path_rec *path = ib_event->param.req_rcvd.primary_path;  in cma_ib_new_conn_id()
2289 		ib_event->param.req_rcvd.primary_path->service_id;  in cma_ib_new_conn_id()
2293 	id_priv = __rdma_create_id(listen_id->route.addr.dev_addr.net,  in cma_ib_new_conn_id()
2294 				   listen_id->event_handler, listen_id->context,  in cma_ib_new_conn_id()
2295 				   listen_id->ps,  in cma_ib_new_conn_id()
2296 				   ib_event->param.req_rcvd.qp_type,  in cma_ib_new_conn_id()
2301 	id = &id_priv->id;  in cma_ib_new_conn_id()
2302 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_conn_id()
2303 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_conn_id()
2307 	rt = &id->route;  in cma_ib_new_conn_id()
2308 	rt->num_pri_alt_paths = ib_event->param.req_rcvd.alternate_path ? 2 : 1;  in cma_ib_new_conn_id()
2309 	rt->path_rec = kmalloc_array(rt->num_pri_alt_paths,  in cma_ib_new_conn_id()
2310 				     sizeof(*rt->path_rec), GFP_KERNEL);  in cma_ib_new_conn_id()
2311 	if (!rt->path_rec)  in cma_ib_new_conn_id()
2314 	rt->path_rec[0] = *path;  in cma_ib_new_conn_id()
2315 	if (rt->num_pri_alt_paths == 2)  in cma_ib_new_conn_id()
2316 		rt->path_rec[1] = *ib_event->param.req_rcvd.alternate_path;  in cma_ib_new_conn_id()
2319 		rdma_copy_src_l2_addr(&rt->addr.dev_addr, net_dev);  in cma_ib_new_conn_id()
2323 			rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;  in cma_ib_new_conn_id()
2324 			rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);  in cma_ib_new_conn_id()
2325 			ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));  in cma_ib_new_conn_id()
2327 			ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr);  in cma_ib_new_conn_id()
2332 	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);  in cma_ib_new_conn_id()
2334 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_conn_id()
2350 	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;  in cma_ib_new_udp_id()
2351 	struct net *net = listen_id->route.addr.dev_addr.net;  in cma_ib_new_udp_id()
2355 	id_priv = __rdma_create_id(net, listen_id->event_handler,  in cma_ib_new_udp_id()
2356 				   listen_id->context, listen_id->ps, IB_QPT_UD,  in cma_ib_new_udp_id()
2361 	id = &id_priv->id;  in cma_ib_new_udp_id()
2362 	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,  in cma_ib_new_udp_id()
2363 			      (struct sockaddr *)&id->route.addr.dst_addr,  in cma_ib_new_udp_id()
2365 			      ib_event->param.sidr_req_rcvd.service_id))  in cma_ib_new_udp_id()
2369 		rdma_copy_src_l2_addr(&id->route.addr.dev_addr, net_dev);  in cma_ib_new_udp_id()
2373 						 &id->route.addr.dev_addr);  in cma_ib_new_udp_id()
2379 	id_priv->state = RDMA_CM_CONNECT;  in cma_ib_new_udp_id()
2390 	event->param.conn.private_data = private_data + offset;  in cma_set_req_event_data()
2391 	event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;  in cma_set_req_event_data()
2392 	event->param.conn.responder_resources = req_data->responder_resources;  in cma_set_req_event_data()
2393 	event->param.conn.initiator_depth = req_data->initiator_depth;  in cma_set_req_event_data()
2394 	event->param.conn.flow_control = req_data->flow_control;  in cma_set_req_event_data()
2395 	event->param.conn.retry_count = req_data->retry_count;  in cma_set_req_event_data()
2396 	event->param.conn.rnr_retry_count = req_data->rnr_retry_count;  in cma_set_req_event_data()
2397 	event->param.conn.srq = req_data->srq;  in cma_set_req_event_data()
2398 	event->param.conn.qp_num = req_data->remote_qpn;  in cma_set_req_event_data()
2400 	event->ece.vendor_id = req_data->ece.vendor_id;  in cma_set_req_event_data()
2401 	event->ece.attr_mod = req_data->ece.attr_mod;  in cma_set_req_event_data()
2407 	return (((ib_event->event == IB_CM_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2408 		 (ib_event->param.req_rcvd.qp_type == id->qp_type)) ||  in cma_ib_check_req_qp_type()
2409 		((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&  in cma_ib_check_req_qp_type()
2410 		 (id->qp_type == IB_QPT_UD)) ||  in cma_ib_check_req_qp_type()
2411 		(!id->qp_type));  in cma_ib_check_req_qp_type()
2428 	trace_cm_req_handler(listen_id, ib_event->event);  in cma_ib_req_handler()
2429 	if (!cma_ib_check_req_qp_type(&listen_id->id, ib_event)) {  in cma_ib_req_handler()
2430 		ret = -EINVAL;  in cma_ib_req_handler()
2434 	mutex_lock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2435 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN) {  in cma_ib_req_handler()
2436 		ret = -ECONNABORTED;  in cma_ib_req_handler()
2442 	if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {  in cma_ib_req_handler()
2443 		conn_id = cma_ib_new_udp_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2444 		event.param.ud.private_data = ib_event->private_data + offset;  in cma_ib_req_handler()
2446 				IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;  in cma_ib_req_handler()
2448 		conn_id = cma_ib_new_conn_id(&listen_id->id, ib_event, net_dev);  in cma_ib_req_handler()
2449 		cma_set_req_event_data(&event, &ib_event->param.req_rcvd,  in cma_ib_req_handler()
2450 				       ib_event->private_data, offset);  in cma_ib_req_handler()
2453 		ret = -ENOMEM;  in cma_ib_req_handler()
2457 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in cma_ib_req_handler()
2464 	conn_id->cm_id.ib = cm_id;  in cma_ib_req_handler()
2465 	cm_id->context = conn_id;  in cma_ib_req_handler()
2466 	cm_id->cm_handler = cma_ib_handler;  in cma_ib_req_handler()
2470 		/* Destroy the CM ID by returning a non-zero value. */  in cma_ib_req_handler()
2471 		conn_id->cm_id.ib = NULL;  in cma_ib_req_handler()
2472 		mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2477 	if (READ_ONCE(conn_id->state) == RDMA_CM_CONNECT &&  in cma_ib_req_handler()
2478 	    conn_id->id.qp_type != IB_QPT_UD) {  in cma_ib_req_handler()
2479 		trace_cm_send_mra(cm_id->context);  in cma_ib_req_handler()
2482 	mutex_unlock(&conn_id->handler_mutex);  in cma_ib_req_handler()
2485 	mutex_unlock(&listen_id->handler_mutex);  in cma_ib_req_handler()
2495 	if (addr->sa_family == AF_IB)  in rdma_get_service_id()
2496 		return ((struct sockaddr_ib *) addr)->sib_sid;  in rdma_get_service_id()
2498 	return cpu_to_be64(((u64)id->ps << 16) + be16_to_cpu(cma_port(addr)));  in rdma_get_service_id()
2505 	struct rdma_addr *addr = &cm_id->route.addr;  in rdma_read_gids()
2507 	if (!cm_id->device) {  in rdma_read_gids()
2515 	if (rdma_protocol_roce(cm_id->device, cm_id->port_num)) {  in rdma_read_gids()
2517 			rdma_ip2gid((struct sockaddr *)&addr->src_addr, sgid);  in rdma_read_gids()
2519 			rdma_ip2gid((struct sockaddr *)&addr->dst_addr, dgid);  in rdma_read_gids()
2522 			rdma_addr_get_sgid(&addr->dev_addr, sgid);  in rdma_read_gids()
2524 			rdma_addr_get_dgid(&addr->dev_addr, dgid);  in rdma_read_gids()
2531 	struct rdma_id_private *id_priv = iw_id->context;  in cma_iw_handler()
2534 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in cma_iw_handler()
2535 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in cma_iw_handler()
2537 	mutex_lock(&id_priv->handler_mutex);  in cma_iw_handler()
2538 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_iw_handler()
2541 	switch (iw_event->event) {  in cma_iw_handler()
2550 		switch (iw_event->status) {  in cma_iw_handler()
2553 			event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2554 			event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2556 		case -ECONNRESET:  in cma_iw_handler()
2557 		case -ECONNREFUSED:  in cma_iw_handler()
2560 		case -ETIMEDOUT:  in cma_iw_handler()
2570 		event.param.conn.initiator_depth = iw_event->ird;  in cma_iw_handler()
2571 		event.param.conn.responder_resources = iw_event->ord;  in cma_iw_handler()
2577 	event.status = iw_event->status;  in cma_iw_handler()
2578 	event.param.conn.private_data = iw_event->private_data;  in cma_iw_handler()
2579 	event.param.conn.private_data_len = iw_event->private_data_len;  in cma_iw_handler()
2582 		/* Destroy the CM ID by returning a non-zero value. */  in cma_iw_handler()
2583 		id_priv->cm_id.iw = NULL;  in cma_iw_handler()
2589 	mutex_unlock(&id_priv->handler_mutex);  in cma_iw_handler()
2598 	int ret = -ECONNABORTED;  in iw_conn_req_handler()
2599 	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;  in iw_conn_req_handler()
2600 	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;  in iw_conn_req_handler()
2603 	event.param.conn.private_data = iw_event->private_data;  in iw_conn_req_handler()
2604 	event.param.conn.private_data_len = iw_event->private_data_len;  in iw_conn_req_handler()
2605 	event.param.conn.initiator_depth = iw_event->ird;  in iw_conn_req_handler()
2606 	event.param.conn.responder_resources = iw_event->ord;  in iw_conn_req_handler()
2608 	listen_id = cm_id->context;  in iw_conn_req_handler()
2610 	mutex_lock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2611 	if (READ_ONCE(listen_id->state) != RDMA_CM_LISTEN)  in iw_conn_req_handler()
2615 	conn_id = __rdma_create_id(listen_id->id.route.addr.dev_addr.net,  in iw_conn_req_handler()
2616 				   listen_id->id.event_handler,  in iw_conn_req_handler()
2617 				   listen_id->id.context, RDMA_PS_TCP,  in iw_conn_req_handler()
2620 		ret = -ENOMEM;  in iw_conn_req_handler()
2623 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);  in iw_conn_req_handler()
2624 	conn_id->state = RDMA_CM_CONNECT;  in iw_conn_req_handler()
2626 	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr);  in iw_conn_req_handler()
2628 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2635 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2640 	conn_id->cm_id.iw = cm_id;  in iw_conn_req_handler()
2641 	cm_id->context = conn_id;  in iw_conn_req_handler()
2642 	cm_id->cm_handler = cma_iw_handler;  in iw_conn_req_handler()
2650 		conn_id->cm_id.iw = NULL;  in iw_conn_req_handler()
2651 		mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2656 	mutex_unlock(&conn_id->handler_mutex);  in iw_conn_req_handler()
2659 	mutex_unlock(&listen_id->handler_mutex);  in iw_conn_req_handler()
2670 	svc_id = rdma_get_service_id(&id_priv->id, addr);  in cma_ib_listen()
2671 	id = ib_cm_insert_listen(id_priv->id.device,  in cma_ib_listen()
2675 	id_priv->cm_id.ib = id;  in cma_ib_listen()
2685 	id = iw_create_cm_id(id_priv->id.device,  in cma_iw_listen()
2691 	mutex_lock(&id_priv->qp_mutex);  in cma_iw_listen()
2692 	id->tos = id_priv->tos;  in cma_iw_listen()
2693 	id->tos_set = id_priv->tos_set;  in cma_iw_listen()
2694 	mutex_unlock(&id_priv->qp_mutex);  in cma_iw_listen()
2695 	id->afonly = id_priv->afonly;  in cma_iw_listen()
2696 	id_priv->cm_id.iw = id;  in cma_iw_listen()
2698 	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),  in cma_iw_listen()
2701 	ret = iw_cm_listen(id_priv->cm_id.iw, backlog);  in cma_iw_listen()
2704 		iw_destroy_cm_id(id_priv->cm_id.iw);  in cma_iw_listen()
2705 		id_priv->cm_id.iw = NULL;  in cma_iw_listen()
2714 	struct rdma_id_private *id_priv = id->context;  in cma_listen_handler()
2717 	if (event->event == RDMA_CM_EVENT_DEVICE_REMOVAL)  in cma_listen_handler()
2718 		return -1;  in cma_listen_handler()
2720 	id->context = id_priv->id.context;  in cma_listen_handler()
2721 	id->event_handler = id_priv->id.event_handler;  in cma_listen_handler()
2723 	return id_priv->id.event_handler(id, event);  in cma_listen_handler()
2731 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_listen_on_dev()
2737 	if (cma_family(id_priv) == AF_IB && !rdma_cap_ib_cm(cma_dev->device, 1))  in cma_listen_on_dev()
2742 				 id_priv->id.ps, id_priv->id.qp_type, id_priv);  in cma_listen_on_dev()
2746 	dev_id_priv->state = RDMA_CM_ADDR_BOUND;  in cma_listen_on_dev()
2751 	rdma_restrack_add(&dev_id_priv->res);  in cma_listen_on_dev()
2753 	dev_id_priv->internal_id = 1;  in cma_listen_on_dev()
2754 	dev_id_priv->afonly = id_priv->afonly;  in cma_listen_on_dev()
2755 	mutex_lock(&id_priv->qp_mutex);  in cma_listen_on_dev()
2756 	dev_id_priv->tos_set = id_priv->tos_set;  in cma_listen_on_dev()
2757 	dev_id_priv->tos = id_priv->tos;  in cma_listen_on_dev()
2758 	mutex_unlock(&id_priv->qp_mutex);  in cma_listen_on_dev()
2760 	ret = rdma_listen(&dev_id_priv->id, id_priv->backlog);  in cma_listen_on_dev()
2763 	list_add_tail(&dev_id_priv->listen_item, &id_priv->listen_list);  in cma_listen_on_dev()
2768 	dev_warn(&cma_dev->device->dev, "RDMA CMA: %s, error %d\n", __func__, ret);  in cma_listen_on_dev()
2779 	list_add_tail(&id_priv->listen_any_item, &listen_any_list);  in cma_listen_on_all()
2785 				list_del_init(&to_destroy->device_item);  in cma_listen_on_all()
2796 		rdma_destroy_id(&to_destroy->id);  in cma_listen_on_all()
2805 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_service_type()
2806 	id_priv->tos = (u8) tos;  in rdma_set_service_type()
2807 	id_priv->tos_set = true;  in rdma_set_service_type()
2808 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_service_type()
2813  * rdma_set_ack_timeout() - Set the ack timeout of QP associated
2831 	if (id->qp_type != IB_QPT_RC && id->qp_type != IB_QPT_XRC_INI)  in rdma_set_ack_timeout()
2832 		return -EINVAL;  in rdma_set_ack_timeout()
2835 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_ack_timeout()
2836 	id_priv->timeout = timeout;  in rdma_set_ack_timeout()
2837 	id_priv->timeout_set = true;  in rdma_set_ack_timeout()
2838 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_ack_timeout()
2845  * rdma_set_min_rnr_timer() - Set the minimum RNR Retry timer of the
2848  * @min_rnr_timer: 5-bit value encoded as Table 45: "Encoding for RNR NAK
2866 	/* It is a five-bit value */  in rdma_set_min_rnr_timer()
2868 		return -EINVAL;  in rdma_set_min_rnr_timer()
2870 	if (WARN_ON(id->qp_type != IB_QPT_RC && id->qp_type != IB_QPT_XRC_TGT))  in rdma_set_min_rnr_timer()
2871 		return -EINVAL;  in rdma_set_min_rnr_timer()
2874 	mutex_lock(&id_priv->qp_mutex);  in rdma_set_min_rnr_timer()
2875 	id_priv->min_rnr_timer = min_rnr_timer;  in rdma_set_min_rnr_timer()
2876 	id_priv->min_rnr_timer_set = true;  in rdma_set_min_rnr_timer()
2877 	mutex_unlock(&id_priv->qp_mutex);  in rdma_set_min_rnr_timer()
2886 	struct rdma_route *route = &work->id->id.route;  in route_set_path_rec_inbound()
2888 	if (!route->path_rec_inbound) {  in route_set_path_rec_inbound()
2889 		route->path_rec_inbound =  in route_set_path_rec_inbound()
2890 			kzalloc(sizeof(*route->path_rec_inbound), GFP_KERNEL);  in route_set_path_rec_inbound()
2891 		if (!route->path_rec_inbound)  in route_set_path_rec_inbound()
2892 			return -ENOMEM;  in route_set_path_rec_inbound()
2895 	*route->path_rec_inbound = *path_rec;  in route_set_path_rec_inbound()
2902 	struct rdma_route *route = &work->id->id.route;  in route_set_path_rec_outbound()
2904 	if (!route->path_rec_outbound) {  in route_set_path_rec_outbound()
2905 		route->path_rec_outbound =  in route_set_path_rec_outbound()
2906 			kzalloc(sizeof(*route->path_rec_outbound), GFP_KERNEL);  in route_set_path_rec_outbound()
2907 		if (!route->path_rec_outbound)  in route_set_path_rec_outbound()
2908 			return -ENOMEM;  in route_set_path_rec_outbound()
2911 	*route->path_rec_outbound = *path_rec;  in route_set_path_rec_outbound()
2922 	route = &work->id->id.route;  in cma_query_handler()
2929 			*route->path_rec = path_rec[i];  in cma_query_handler()
2936 			status = -EINVAL;  in cma_query_handler()
2942 	route->num_pri_alt_paths = 1;  in cma_query_handler()
2943 	queue_work(cma_wq, &work->work);  in cma_query_handler()
2947 	work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_query_handler()
2948 	work->new_state = RDMA_CM_ADDR_RESOLVED;  in cma_query_handler()
2949 	work->event.event = RDMA_CM_EVENT_ROUTE_ERROR;  in cma_query_handler()
2950 	work->event.status = status;  in cma_query_handler()
2953 	queue_work(cma_wq, &work->work);  in cma_query_handler()
2959 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_query_ib_route()
2967 	if (rdma_cap_opa_ah(id_priv->id.device, id_priv->id.port_num))  in cma_query_ib_route()
2976 	path_rec.service_id = rdma_get_service_id(&id_priv->id,  in cma_query_ib_route()
2985 		path_rec.qos_class = cpu_to_be16((u16) id_priv->tos);  in cma_query_ib_route()
2990 		path_rec.traffic_class = (u8) (be32_to_cpu(sin6->sin6_flowinfo) >> 20);  in cma_query_ib_route()
2995 		path_rec.traffic_class = (u8) (be32_to_cpu(sib->sib_flowinfo) >> 20);  in cma_query_ib_route()
3000 	id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device,  in cma_query_ib_route()
3001 					       id_priv->id.port_num, &path_rec,  in cma_query_ib_route()
3004 					       work, &id_priv->query);  in cma_query_ib_route()
3006 	return (id_priv->query_id < 0) ? id_priv->query_id : 0;  in cma_query_ib_route()
3011 	struct cma_multicast *mc =  in cma_iboe_join_work_handler()  local
3013 	struct rdma_cm_event *event = &mc->iboe_join.event;  in cma_iboe_join_work_handler()
3014 	struct rdma_id_private *id_priv = mc->id_priv;  in cma_iboe_join_work_handler()
3017 	mutex_lock(&id_priv->handler_mutex);  in cma_iboe_join_work_handler()
3018 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_iboe_join_work_handler()
3019 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_iboe_join_work_handler()
3026 	mutex_unlock(&id_priv->handler_mutex);  in cma_iboe_join_work_handler()
3027 	if (event->event == RDMA_CM_EVENT_MULTICAST_JOIN)  in cma_iboe_join_work_handler()
3028 		rdma_destroy_ah_attr(&event->param.ud.ah_attr);  in cma_iboe_join_work_handler()
3034 	struct rdma_id_private *id_priv = work->id;  in cma_work_handler()
3036 	mutex_lock(&id_priv->handler_mutex);  in cma_work_handler()
3037 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_work_handler()
3038 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_work_handler()
3040 	if (work->old_state != 0 || work->new_state != 0) {  in cma_work_handler()
3041 		if (!cma_comp_exch(id_priv, work->old_state, work->new_state))  in cma_work_handler()
3045 	if (cma_cm_event_handler(id_priv, &work->event)) {  in cma_work_handler()
3052 	mutex_unlock(&id_priv->handler_mutex);  in cma_work_handler()
3055 	if (work->event.event == RDMA_CM_EVENT_MULTICAST_JOIN)  in cma_work_handler()
3056 		rdma_destroy_ah_attr(&work->event.param.ud.ah_attr);  in cma_work_handler()
3063 	work->id = id_priv;  in cma_init_resolve_route_work()
3064 	INIT_WORK(&work->work, cma_work_handler);  in cma_init_resolve_route_work()
3065 	work->old_state = RDMA_CM_ROUTE_QUERY;  in cma_init_resolve_route_work()
3066 	work->new_state = RDMA_CM_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
3067 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;  in cma_init_resolve_route_work()
3076 	work->id = id_priv;  in enqueue_resolve_addr_work()
3077 	INIT_WORK(&work->work, cma_work_handler);  in enqueue_resolve_addr_work()
3078 	work->old_state = RDMA_CM_ADDR_QUERY;  in enqueue_resolve_addr_work()
3079 	work->new_state = RDMA_CM_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
3080 	work->event.event = RDMA_CM_EVENT_ADDR_RESOLVED;  in enqueue_resolve_addr_work()
3082 	queue_work(cma_wq, &work->work);  in enqueue_resolve_addr_work()
3088 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_ib_route()
3094 		return -ENOMEM;  in cma_resolve_ib_route()
3098 	if (!route->path_rec)  in cma_resolve_ib_route()
3099 		route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_ib_route()
3100 	if (!route->path_rec) {  in cma_resolve_ib_route()
3101 		ret = -ENOMEM;  in cma_resolve_ib_route()
3111 	kfree(route->path_rec);  in cma_resolve_ib_route()
3112 	route->path_rec = NULL;  in cma_resolve_ib_route()
3140 	struct rdma_route *route = &id_priv->id.route;  in cma_iboe_set_path_rec_l2_fields()
3142 	struct rdma_addr *addr = &route->addr;  in cma_iboe_set_path_rec_l2_fields()
3146 	if (!addr->dev_addr.bound_dev_if)  in cma_iboe_set_path_rec_l2_fields()
3149 	ndev = dev_get_by_index(addr->dev_addr.net,  in cma_iboe_set_path_rec_l2_fields()
3150 				addr->dev_addr.bound_dev_if);  in cma_iboe_set_path_rec_l2_fields()
3154 	supported_gids = roce_gid_type_mask_support(id_priv->id.device,  in cma_iboe_set_path_rec_l2_fields()
3155 						    id_priv->id.port_num);  in cma_iboe_set_path_rec_l2_fields()
3156 	gid_type = cma_route_gid_type(addr->dev_addr.network,  in cma_iboe_set_path_rec_l2_fields()
3158 				      id_priv->gid_type);  in cma_iboe_set_path_rec_l2_fields()
3160 	if (gid_type < ib_network_to_gid_type(addr->dev_addr.network))  in cma_iboe_set_path_rec_l2_fields()
3161 		gid_type = ib_network_to_gid_type(addr->dev_addr.network);  in cma_iboe_set_path_rec_l2_fields()
3162 	route->path_rec->rec_type = sa_conv_gid_to_pathrec_type(gid_type);  in cma_iboe_set_path_rec_l2_fields()
3164 	route->path_rec->roce.route_resolved = true;  in cma_iboe_set_path_rec_l2_fields()
3165 	sa_path_set_dmac(route->path_rec, addr->dev_addr.dst_dev_addr);  in cma_iboe_set_path_rec_l2_fields()
3179 		return -EINVAL;  in rdma_set_ib_path()
3181 	id->route.path_rec = kmemdup(path_rec, sizeof(*path_rec),  in rdma_set_ib_path()
3183 	if (!id->route.path_rec) {  in rdma_set_ib_path()
3184 		ret = -ENOMEM;  in rdma_set_ib_path()
3188 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_set_ib_path()
3191 			ret = -ENODEV;  in rdma_set_ib_path()
3197 	id->route.num_pri_alt_paths = 1;  in rdma_set_ib_path()
3201 	kfree(id->route.path_rec);  in rdma_set_ib_path()
3202 	id->route.path_rec = NULL;  in rdma_set_ib_path()
3215 		return -ENOMEM;  in cma_resolve_iw_route()
3218 	queue_work(cma_wq, &work->work);  in cma_resolve_iw_route()
3227 	if (dev->num_tc)  in get_vlan_ndev_tc()
3243 	struct iboe_prio_tc_map *map = (struct iboe_prio_tc_map *)priv->data;  in get_lower_vlan_dev_tc()
3246 		map->output_tc = get_vlan_ndev_tc(dev, map->input_prio);  in get_lower_vlan_dev_tc()
3247 	else if (dev->num_tc)  in get_lower_vlan_dev_tc()
3248 		map->output_tc = netdev_get_prio_tc_map(dev, map->input_prio);  in get_lower_vlan_dev_tc()
3250 		map->output_tc = 0;  in get_lower_vlan_dev_tc()
3254 	map->found = true;  in get_lower_vlan_dev_tc()
3280 	else if (ndev->num_tc)  in iboe_tos_to_sl()
3293 	fl = be32_to_cpu(addr6->sin6_flowinfo) & IB_GRH_FLOWLABEL_MASK;  in cma_get_roce_udp_flow_label()
3306 	struct rdma_route *route = &id_priv->id.route;  in cma_resolve_iboe_route()
3307 	struct rdma_addr *addr = &route->addr;  in cma_resolve_iboe_route()
3312 	u8 default_roce_tos = id_priv->cma_dev->default_roce_tos[id_priv->id.port_num -  in cma_resolve_iboe_route()
3313 					rdma_start_port(id_priv->cma_dev->device)];  in cma_resolve_iboe_route()
3316 	mutex_lock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3317 	tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;  in cma_resolve_iboe_route()
3318 	mutex_unlock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3322 		return -ENOMEM;  in cma_resolve_iboe_route()
3324 	route->path_rec = kzalloc(sizeof *route->path_rec, GFP_KERNEL);  in cma_resolve_iboe_route()
3325 	if (!route->path_rec) {  in cma_resolve_iboe_route()
3326 		ret = -ENOMEM;  in cma_resolve_iboe_route()
3330 	route->num_pri_alt_paths = 1;  in cma_resolve_iboe_route()
3334 		ret = -ENODEV;  in cma_resolve_iboe_route()
3338 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_resolve_iboe_route()
3339 		    &route->path_rec->sgid);  in cma_resolve_iboe_route()
3340 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,  in cma_resolve_iboe_route()
3341 		    &route->path_rec->dgid);  in cma_resolve_iboe_route()
3343 	if (((struct sockaddr *)&id_priv->id.route.addr.dst_addr)->sa_family != AF_IB)  in cma_resolve_iboe_route()
3345 		route->path_rec->hop_limit = addr->dev_addr.hoplimit;  in cma_resolve_iboe_route()
3347 		route->path_rec->hop_limit = 1;  in cma_resolve_iboe_route()
3348 	route->path_rec->reversible = 1;  in cma_resolve_iboe_route()
3349 	route->path_rec->pkey = cpu_to_be16(0xffff);  in cma_resolve_iboe_route()
3350 	route->path_rec->mtu_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3351 	route->path_rec->sl = iboe_tos_to_sl(ndev, tos);  in cma_resolve_iboe_route()
3352 	route->path_rec->traffic_class = tos;  in cma_resolve_iboe_route()
3353 	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);  in cma_resolve_iboe_route()
3354 	route->path_rec->rate_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3355 	route->path_rec->rate = IB_RATE_PORT_CURRENT;  in cma_resolve_iboe_route()
3357 	route->path_rec->packet_life_time_selector = IB_SA_EQ;  in cma_resolve_iboe_route()
3365 	mutex_lock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3366 	if (id_priv->timeout_set && id_priv->timeout)  in cma_resolve_iboe_route()
3367 		route->path_rec->packet_life_time = id_priv->timeout - 1;  in cma_resolve_iboe_route()
3369 		route->path_rec->packet_life_time = CMA_IBOE_PACKET_LIFETIME;  in cma_resolve_iboe_route()
3370 	mutex_unlock(&id_priv->qp_mutex);  in cma_resolve_iboe_route()
3372 	if (!route->path_rec->mtu) {  in cma_resolve_iboe_route()
3373 		ret = -EINVAL;  in cma_resolve_iboe_route()
3377 	if (rdma_protocol_roce_udp_encap(id_priv->id.device,  in cma_resolve_iboe_route()
3378 					 id_priv->id.port_num))  in cma_resolve_iboe_route()
3379 		route->path_rec->flow_label =  in cma_resolve_iboe_route()
3383 	queue_work(cma_wq, &work->work);  in cma_resolve_iboe_route()
3388 	kfree(route->path_rec);  in cma_resolve_iboe_route()
3389 	route->path_rec = NULL;  in cma_resolve_iboe_route()
3390 	route->num_pri_alt_paths = 0;  in cma_resolve_iboe_route()
3402 		return -EINVAL;  in rdma_resolve_route()
3406 		return -EINVAL;  in rdma_resolve_route()
3409 	if (rdma_cap_ib_sa(id->device, id->port_num))  in rdma_resolve_route()
3411 	else if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_resolve_route()
3416 	else if (rdma_protocol_iwarp(id->device, id->port_num))  in rdma_resolve_route()
3419 		ret = -ENOSYS;  in rdma_resolve_route()
3434 	switch (addr->sa_family) {  in cma_set_loopback()
3436 		((struct sockaddr_in *) addr)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);  in cma_set_loopback()
3439 		ipv6_addr_set(&((struct sockaddr_in6 *) addr)->sin6_addr,  in cma_set_loopback()
3443 		ib_addr_set(&((struct sockaddr_ib *) addr)->sib_addr,  in cma_set_loopback()
3462 		    !rdma_cap_ib_cm(cur_dev->device, 1))  in cma_bind_loopback()
3468 		rdma_for_each_port (cur_dev->device, p) {  in cma_bind_loopback()
3469 			if (!ib_get_cached_port_state(cur_dev->device, p, &port_state) &&  in cma_bind_loopback()
3478 		ret = -ENODEV;  in cma_bind_loopback()
3485 	ret = rdma_query_gid(cma_dev->device, p, 0, &gid);  in cma_bind_loopback()
3489 	ret = ib_get_cached_pkey(cma_dev->device, p, 0, &pkey);  in cma_bind_loopback()
3493 	id_priv->id.route.addr.dev_addr.dev_type =  in cma_bind_loopback()
3494 		(rdma_protocol_ib(cma_dev->device, p)) ?  in cma_bind_loopback()
3497 	rdma_addr_set_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_bind_loopback()
3498 	ib_addr_set_pkey(&id_priv->id.route.addr.dev_addr, pkey);  in cma_bind_loopback()
3499 	id_priv->id.port_num = p;  in cma_bind_loopback()
3501 	rdma_restrack_add(&id_priv->res);  in cma_bind_loopback()
3516 	mutex_lock(&id_priv->handler_mutex);  in addr_handler()
3529 	if (!status && !id_priv->cma_dev) {  in addr_handler()
3534 		rdma_restrack_add(&id_priv->res);  in addr_handler()
3555 	mutex_unlock(&id_priv->handler_mutex);  in addr_handler()
3566 		return -ENOMEM;  in cma_resolve_loopback()
3568 	if (!id_priv->cma_dev) {  in cma_resolve_loopback()
3574 	rdma_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3575 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, &gid);  in cma_resolve_loopback()
3591 		return -ENOMEM;  in cma_resolve_ib_addr()
3593 	if (!id_priv->cma_dev) {  in cma_resolve_ib_addr()
3599 	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, (union ib_gid *)  in cma_resolve_ib_addr()
3600 		&(((struct sockaddr_ib *) &id_priv->id.route.addr.dst_addr)->sib_addr));  in cma_resolve_ib_addr()
3616 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3617 	if ((reuse && id_priv->state != RDMA_CM_LISTEN) ||  in rdma_set_reuseaddr()
3618 	    id_priv->state == RDMA_CM_IDLE) {  in rdma_set_reuseaddr()
3619 		id_priv->reuseaddr = reuse;  in rdma_set_reuseaddr()
3622 		ret = -EINVAL;  in rdma_set_reuseaddr()
3624 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_reuseaddr()
3636 	spin_lock_irqsave(&id_priv->lock, flags);  in rdma_set_afonly()
3637 	if (id_priv->state == RDMA_CM_IDLE || id_priv->state == RDMA_CM_ADDR_BOUND) {  in rdma_set_afonly()
3638 		id_priv->options |= (1 << CMA_OPTION_AFONLY);  in rdma_set_afonly()
3639 		id_priv->afonly = afonly;  in rdma_set_afonly()
3642 		ret = -EINVAL;  in rdma_set_afonly()
3644 	spin_unlock_irqrestore(&id_priv->lock, flags);  in rdma_set_afonly()
3654 	u64 sid, mask;  in cma_bind_port()  local
3660 	port = htons(bind_list->port);  in cma_bind_port()
3662 	switch (addr->sa_family) {  in cma_bind_port()
3664 		((struct sockaddr_in *) addr)->sin_port = port;  in cma_bind_port()
3667 		((struct sockaddr_in6 *) addr)->sin6_port = port;  in cma_bind_port()
3671 		sid = be64_to_cpu(sib->sib_sid);  in cma_bind_port()
3672 		mask = be64_to_cpu(sib->sib_sid_mask);  in cma_bind_port()
3673 		sib->sib_sid = cpu_to_be64((sid & mask) | (u64) ntohs(port));  in cma_bind_port()
3674 		sib->sib_sid_mask = cpu_to_be64(~0ULL);  in cma_bind_port()
3677 	id_priv->bind_list = bind_list;  in cma_bind_port()
3678 	hlist_add_head(&id_priv->node, &bind_list->owners);  in cma_bind_port()
3691 		return -ENOMEM;  in cma_alloc_port()
3693 	ret = cma_ps_alloc(id_priv->id.route.addr.dev_addr.net, ps, bind_list,  in cma_alloc_port()
3698 	bind_list->ps = ps;  in cma_alloc_port()
3699 	bind_list->port = snum;  in cma_alloc_port()
3704 	return ret == -ENOSPC ? -EADDRNOTAVAIL : ret;  in cma_alloc_port()
3717 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_port_is_unique()
3725 		/* different dest port -> unique */  in cma_port_is_unique()
3731 		/* different src address -> unique */  in cma_port_is_unique()
3737 		/* different dst address -> unique */  in cma_port_is_unique()
3743 		return -EADDRNOTAVAIL;  in cma_port_is_unique()
3754 	struct net *net = id_priv->id.route.addr.dev_addr.net;  in cma_alloc_any_port()
3759 	remaining = (high - low) + 1;  in cma_alloc_any_port()
3760 	rover = get_random_u32_inclusive(low, remaining + low - 1);  in cma_alloc_any_port()
3777 		 * re-using same port immediately after it is closed.  in cma_alloc_any_port()
3781 		if (ret != -EADDRNOTAVAIL)  in cma_alloc_any_port()
3784 	if (--remaining) {  in cma_alloc_any_port()
3790 	return -EADDRNOTAVAIL;  in cma_alloc_any_port()
3808 	hlist_for_each_entry(cur_id, &bind_list->owners, node) {  in cma_check_port()
3812 		if (reuseaddr && cur_id->reuseaddr)  in cma_check_port()
3816 		if (id_priv->afonly && cur_id->afonly &&  in cma_check_port()
3817 		    (addr->sa_family != cur_addr->sa_family))  in cma_check_port()
3821 			return -EADDRNOTAVAIL;  in cma_check_port()
3824 			return -EADDRINUSE;  in cma_check_port()
3840 		return -EACCES;  in cma_use_port()
3842 	bind_list = cma_ps_find(id_priv->id.route.addr.dev_addr.net, ps, snum);  in cma_use_port()
3846 		ret = cma_check_port(bind_list, id_priv, id_priv->reuseaddr);  in cma_use_port()
3856 	switch (id_priv->id.ps) {  in cma_select_inet_ps()
3861 		return id_priv->id.ps;  in cma_select_inet_ps()
3873 	u64 sid_ps, mask, sid;  in cma_select_ib_ps()  local
3876 	mask = be64_to_cpu(sib->sib_sid_mask) & RDMA_IB_IP_PS_MASK;  in cma_select_ib_ps()
3877 	sid = be64_to_cpu(sib->sib_sid) & mask;  in cma_select_ib_ps()
3879 	if ((id_priv->id.ps == RDMA_PS_IB) && (sid == (RDMA_IB_IP_PS_IB & mask))) {  in cma_select_ib_ps()
3882 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_TCP)) &&  in cma_select_ib_ps()
3883 		   (sid == (RDMA_IB_IP_PS_TCP & mask))) {  in cma_select_ib_ps()
3886 	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_UDP)) &&  in cma_select_ib_ps()
3887 		   (sid == (RDMA_IB_IP_PS_UDP & mask))) {  in cma_select_ib_ps()
3893 		sib->sib_sid = cpu_to_be64(sid_ps | ntohs(cma_port((struct sockaddr *) sib)));  in cma_select_ib_ps()
3894 		sib->sib_sid_mask = cpu_to_be64(RDMA_IB_IP_PS_MASK |  in cma_select_ib_ps()
3895 						be64_to_cpu(sib->sib_sid_mask));  in cma_select_ib_ps()
3910 		return -EPROTONOSUPPORT;  in cma_get_port()
3928 	if (addr->sa_family != AF_INET6)  in cma_check_linklocal()
3933 	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))  in cma_check_linklocal()
3936 	if (!sin6->sin6_scope_id)  in cma_check_linklocal()
3937 			return -EINVAL;  in cma_check_linklocal()
3939 	dev_addr->bound_dev_if = sin6->sin6_scope_id;  in cma_check_linklocal()
3962 			return -EINVAL;  in rdma_listen()
3969 	if (id_priv->reuseaddr) {  in rdma_listen()
3971 		ret = cma_check_port(id_priv->bind_list, id_priv, 0);  in rdma_listen()
3973 			id_priv->reuseaddr = 0;  in rdma_listen()
3979 	id_priv->backlog = backlog;  in rdma_listen()
3980 	if (id_priv->cma_dev) {  in rdma_listen()
3981 		if (rdma_cap_ib_cm(id->device, 1)) {  in rdma_listen()
3985 		} else if (rdma_cap_iw_cm(id->device, 1)) {  in rdma_listen()
3990 			ret = -ENOSYS;  in rdma_listen()
4001 	id_priv->backlog = 0;  in rdma_listen()
4017 	if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&  in rdma_bind_addr_dst()
4018 	    addr->sa_family != AF_IB)  in rdma_bind_addr_dst()
4019 		return -EAFNOSUPPORT;  in rdma_bind_addr_dst()
4022 		return -EINVAL;  in rdma_bind_addr_dst()
4024 	ret = cma_check_linklocal(&id_priv->id.route.addr.dev_addr, addr);  in rdma_bind_addr_dst()
4030 		ret = cma_translate_addr(addr, &id_priv->id.route.addr.dev_addr);  in rdma_bind_addr_dst()
4039 	if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) {  in rdma_bind_addr_dst()
4040 		if (addr->sa_family == AF_INET)  in rdma_bind_addr_dst()
4041 			id_priv->afonly = 1;  in rdma_bind_addr_dst()
4043 		else if (addr->sa_family == AF_INET6) {  in rdma_bind_addr_dst()
4044 			struct net *net = id_priv->id.route.addr.dev_addr.net;  in rdma_bind_addr_dst()
4046 			id_priv->afonly = net->ipv6.sysctl.bindv6only;  in rdma_bind_addr_dst()
4053 	id_daddr->sa_family = addr->sa_family;  in rdma_bind_addr_dst()
4060 		rdma_restrack_add(&id_priv->res);  in rdma_bind_addr_dst()
4063 	if (id_priv->cma_dev)  in rdma_bind_addr_dst()
4077 	if (src_addr && src_addr->sa_family)  in cma_bind_addr()
4083 	zero_sock.ss_family = dst_addr->sa_family;  in cma_bind_addr()
4084 	if (IS_ENABLED(CONFIG_IPV6) && dst_addr->sa_family == AF_INET6) {  in cma_bind_addr()
4090 		src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;  in cma_bind_addr()
4091 		if (ipv6_addr_type(&dst_addr6->sin6_addr) & IPV6_ADDR_LINKLOCAL)  in cma_bind_addr()
4092 			id->route.addr.dev_addr.bound_dev_if =  in cma_bind_addr()
4093 				dst_addr6->sin6_scope_id;  in cma_bind_addr()
4094 	} else if (dst_addr->sa_family == AF_IB) {  in cma_bind_addr()
4095 		((struct sockaddr_ib *)&zero_sock)->sib_pkey =  in cma_bind_addr()
4096 			((struct sockaddr_ib *)dst_addr)->sib_pkey;  in cma_bind_addr()
4104  * calls made by ULP, a previously bound ID will not be re-bound and src_addr is
4115 		ret = cma_bind_addr(&id_priv->id, src_addr, dst_addr);  in resolve_prepare_src()
4120 			return -EINVAL;  in resolve_prepare_src()
4126 	if (cma_family(id_priv) != dst_addr->sa_family) {  in resolve_prepare_src()
4127 		ret = -EINVAL;  in resolve_prepare_src()
4151 		if (dst_addr->sa_family == AF_IB) {  in rdma_resolve_addr()
4165 			if (id_priv->used_resolve_ip)  in rdma_resolve_addr()
4166 				rdma_addr_cancel(&id->route.addr.dev_addr);  in rdma_resolve_addr()
4168 				id_priv->used_resolve_ip = 1;  in rdma_resolve_addr()
4170 					      &id->route.addr.dev_addr,  in rdma_resolve_addr()
4199 	cma_hdr->cma_version = CMA_VERSION;  in cma_format_hdr()
4207 		cma_hdr->src_addr.ip4.addr = src4->sin_addr.s_addr;  in cma_format_hdr()
4208 		cma_hdr->dst_addr.ip4.addr = dst4->sin_addr.s_addr;  in cma_format_hdr()
4209 		cma_hdr->port = src4->sin_port;  in cma_format_hdr()
4217 		cma_hdr->src_addr.ip6 = src6->sin6_addr;  in cma_format_hdr()
4218 		cma_hdr->dst_addr.ip6 = dst6->sin6_addr;  in cma_format_hdr()
4219 		cma_hdr->port = src6->sin6_port;  in cma_format_hdr()
4227 	struct rdma_id_private *id_priv = cm_id->context;  in cma_sidr_rep_handler()
4230 				&ib_event->param.sidr_rep_rcvd;  in cma_sidr_rep_handler()
4233 	mutex_lock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
4234 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in cma_sidr_rep_handler()
4237 	switch (ib_event->event) {  in cma_sidr_rep_handler()
4240 		event.status = -ETIMEDOUT;  in cma_sidr_rep_handler()
4243 		event.param.ud.private_data = ib_event->private_data;  in cma_sidr_rep_handler()
4245 		if (rep->status != IB_SIDR_SUCCESS) {  in cma_sidr_rep_handler()
4247 			event.status = ib_event->param.sidr_rep_rcvd.status;  in cma_sidr_rep_handler()
4252 		ret = cma_set_qkey(id_priv, rep->qkey);  in cma_sidr_rep_handler()
4259 		ib_init_ah_attr_from_path(id_priv->id.device,  in cma_sidr_rep_handler()
4260 					  id_priv->id.port_num,  in cma_sidr_rep_handler()
4261 					  id_priv->id.route.path_rec,  in cma_sidr_rep_handler()
4263 					  rep->sgid_attr);  in cma_sidr_rep_handler()
4264 		event.param.ud.qp_num = rep->qpn;  in cma_sidr_rep_handler()
4265 		event.param.ud.qkey = rep->qkey;  in cma_sidr_rep_handler()
4271 		       ib_event->event);  in cma_sidr_rep_handler()
4279 		/* Destroy the CM ID by returning a non-zero value. */  in cma_sidr_rep_handler()
4280 		id_priv->cm_id.ib = NULL;  in cma_sidr_rep_handler()
4285 	mutex_unlock(&id_priv->handler_mutex);  in cma_sidr_rep_handler()
4300 	if (check_add_overflow(offset, conn_param->private_data_len, &req.private_data_len))  in cma_resolve_ib_udp()
4301 		return -EINVAL;  in cma_resolve_ib_udp()
4306 			return -ENOMEM;  in cma_resolve_ib_udp()
4311 	if (conn_param->private_data && conn_param->private_data_len)  in cma_resolve_ib_udp()
4312 		memcpy(private_data + offset, conn_param->private_data,  in cma_resolve_ib_udp()
4313 		       conn_param->private_data_len);  in cma_resolve_ib_udp()
4322 	id = ib_create_cm_id(id_priv->id.device, cma_sidr_rep_handler,  in cma_resolve_ib_udp()
4328 	id_priv->cm_id.ib = id;  in cma_resolve_ib_udp()
4330 	req.path = id_priv->id.route.path_rec;  in cma_resolve_ib_udp()
4331 	req.sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_resolve_ib_udp()
4332 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_resolve_ib_udp()
4333 	req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);  in cma_resolve_ib_udp()
4337 	ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);  in cma_resolve_ib_udp()
4339 		ib_destroy_cm_id(id_priv->cm_id.ib);  in cma_resolve_ib_udp()
4340 		id_priv->cm_id.ib = NULL;  in cma_resolve_ib_udp()
4359 	if (check_add_overflow(offset, conn_param->private_data_len, &req.private_data_len))  in cma_connect_ib()
4360 		return -EINVAL;  in cma_connect_ib()
4365 			return -ENOMEM;  in cma_connect_ib()
4370 	if (conn_param->private_data && conn_param->private_data_len)  in cma_connect_ib()
4371 		memcpy(private_data + offset, conn_param->private_data,  in cma_connect_ib()
4372 		       conn_param->private_data_len);  in cma_connect_ib()
4374 	id = ib_create_cm_id(id_priv->id.device, cma_ib_handler, id_priv);  in cma_connect_ib()
4379 	id_priv->cm_id.ib = id;  in cma_connect_ib()
4381 	route = &id_priv->id.route;  in cma_connect_ib()
4389 	req.primary_path = &route->path_rec[0];  in cma_connect_ib()
4390 	req.primary_path_inbound = route->path_rec_inbound;  in cma_connect_ib()
4391 	req.primary_path_outbound = route->path_rec_outbound;  in cma_connect_ib()
4392 	if (route->num_pri_alt_paths == 2)  in cma_connect_ib()
4393 		req.alternate_path = &route->path_rec[1];  in cma_connect_ib()
4395 	req.ppath_sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;  in cma_connect_ib()
4397 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));  in cma_connect_ib()
4398 	req.qp_num = id_priv->qp_num;  in cma_connect_ib()
4399 	req.qp_type = id_priv->id.qp_type;  in cma_connect_ib()
4400 	req.starting_psn = id_priv->seq_num;  in cma_connect_ib()
4401 	req.responder_resources = conn_param->responder_resources;  in cma_connect_ib()
4402 	req.initiator_depth = conn_param->initiator_depth;  in cma_connect_ib()
4403 	req.flow_control = conn_param->flow_control;  in cma_connect_ib()
4404 	req.retry_count = min_t(u8, 7, conn_param->retry_count);  in cma_connect_ib()
4405 	req.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_connect_ib()
4409 	req.srq = id_priv->srq ? 1 : 0;  in cma_connect_ib()
4410 	req.ece.vendor_id = id_priv->ece.vendor_id;  in cma_connect_ib()
4411 	req.ece.attr_mod = id_priv->ece.attr_mod;  in cma_connect_ib()
4414 	ret = ib_send_cm_req(id_priv->cm_id.ib, &req);  in cma_connect_ib()
4418 		id_priv->cm_id.ib = NULL;  in cma_connect_ib()
4432 	cm_id = iw_create_cm_id(id_priv->id.device, cma_iw_handler, id_priv);  in cma_connect_iw()
4436 	mutex_lock(&id_priv->qp_mutex);  in cma_connect_iw()
4437 	cm_id->tos = id_priv->tos;  in cma_connect_iw()
4438 	cm_id->tos_set = id_priv->tos_set;  in cma_connect_iw()
4439 	mutex_unlock(&id_priv->qp_mutex);  in cma_connect_iw()
4441 	id_priv->cm_id.iw = cm_id;  in cma_connect_iw()
4443 	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),  in cma_connect_iw()
4445 	memcpy(&cm_id->remote_addr, cma_dst_addr(id_priv),  in cma_connect_iw()
4453 		iw_param.ord = conn_param->initiator_depth;  in cma_connect_iw()
4454 		iw_param.ird = conn_param->responder_resources;  in cma_connect_iw()
4455 		iw_param.private_data = conn_param->private_data;  in cma_connect_iw()
4456 		iw_param.private_data_len = conn_param->private_data_len;  in cma_connect_iw()
4457 		iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;  in cma_connect_iw()
4460 		iw_param.qpn = id_priv->qp_num;  in cma_connect_iw()
4466 		id_priv->cm_id.iw = NULL;  in cma_connect_iw()
4472  * rdma_connect_locked - Initiate an active connection request.
4487 		return -EINVAL;  in rdma_connect_locked()
4489 	if (!id->qp) {  in rdma_connect_locked()
4490 		id_priv->qp_num = conn_param->qp_num;  in rdma_connect_locked()
4491 		id_priv->srq = conn_param->srq;  in rdma_connect_locked()
4494 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_connect_locked()
4495 		if (id->qp_type == IB_QPT_UD)  in rdma_connect_locked()
4499 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_connect_locked()
4502 		ret = -ENOSYS;  in rdma_connect_locked()
4514  * rdma_connect - Initiate an active connection request.
4531 	mutex_lock(&id_priv->handler_mutex);  in rdma_connect()
4533 	mutex_unlock(&id_priv->handler_mutex);  in rdma_connect()
4539  * rdma_connect_ece - Initiate an active connection request with ECE data.
4552 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_connect_ece()
4553 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_connect_ece()
4574 	rep.qp_num = id_priv->qp_num;  in cma_accept_ib()
4575 	rep.starting_psn = id_priv->seq_num;  in cma_accept_ib()
4576 	rep.private_data = conn_param->private_data;  in cma_accept_ib()
4577 	rep.private_data_len = conn_param->private_data_len;  in cma_accept_ib()
4578 	rep.responder_resources = conn_param->responder_resources;  in cma_accept_ib()
4579 	rep.initiator_depth = conn_param->initiator_depth;  in cma_accept_ib()
4581 	rep.flow_control = conn_param->flow_control;  in cma_accept_ib()
4582 	rep.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);  in cma_accept_ib()
4583 	rep.srq = id_priv->srq ? 1 : 0;  in cma_accept_ib()
4584 	rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_accept_ib()
4585 	rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_accept_ib()
4588 	ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);  in cma_accept_ib()
4600 		return -EINVAL;  in cma_accept_iw()
4606 	iw_param.ord = conn_param->initiator_depth;  in cma_accept_iw()
4607 	iw_param.ird = conn_param->responder_resources;  in cma_accept_iw()
4608 	iw_param.private_data = conn_param->private_data;  in cma_accept_iw()
4609 	iw_param.private_data_len = conn_param->private_data_len;  in cma_accept_iw()
4610 	if (id_priv->id.qp)  in cma_accept_iw()
4611 		iw_param.qpn = id_priv->qp_num;  in cma_accept_iw()
4613 		iw_param.qpn = conn_param->qp_num;  in cma_accept_iw()
4615 	return iw_cm_accept(id_priv->cm_id.iw, &iw_param);  in cma_accept_iw()
4634 		rep.qp_num = id_priv->qp_num;  in cma_send_sidr_rep()
4635 		rep.qkey = id_priv->qkey;  in cma_send_sidr_rep()
4637 		rep.ece.vendor_id = id_priv->ece.vendor_id;  in cma_send_sidr_rep()
4638 		rep.ece.attr_mod = id_priv->ece.attr_mod;  in cma_send_sidr_rep()
4645 	return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);  in cma_send_sidr_rep()
4649  * rdma_accept - Called to accept a connection request or response.
4672 	lockdep_assert_held(&id_priv->handler_mutex);  in rdma_accept()
4674 	if (READ_ONCE(id_priv->state) != RDMA_CM_CONNECT)  in rdma_accept()
4675 		return -EINVAL;  in rdma_accept()
4677 	if (!id->qp && conn_param) {  in rdma_accept()
4678 		id_priv->qp_num = conn_param->qp_num;  in rdma_accept()
4679 		id_priv->srq = conn_param->srq;  in rdma_accept()
4682 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_accept()
4683 		if (id->qp_type == IB_QPT_UD) {  in rdma_accept()
4686 							conn_param->qkey,  in rdma_accept()
4687 							conn_param->private_data,  in rdma_accept()
4688 							conn_param->private_data_len);  in rdma_accept()
4698 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_accept()
4701 		ret = -ENOSYS;  in rdma_accept()
4720 	id_priv->ece.vendor_id = ece->vendor_id;  in rdma_accept_ece()
4721 	id_priv->ece.attr_mod = ece->attr_mod;  in rdma_accept_ece()
4732 	mutex_lock(&id_priv->handler_mutex);  in rdma_lock_handler()
4741 	mutex_unlock(&id_priv->handler_mutex);  in rdma_unlock_handler()
4751 	if (!id_priv->cm_id.ib)  in rdma_notify()
4752 		return -EINVAL;  in rdma_notify()
4754 	switch (id->device->node_type) {  in rdma_notify()
4756 		ret = ib_cm_notify(id_priv->cm_id.ib, event);  in rdma_notify()
4773 	if (!id_priv->cm_id.ib)  in rdma_reject()
4774 		return -EINVAL;  in rdma_reject()
4776 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_reject()
4777 		if (id->qp_type == IB_QPT_UD) {  in rdma_reject()
4782 			ret = ib_send_cm_rej(id_priv->cm_id.ib, reason, NULL, 0,  in rdma_reject()
4785 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_reject()
4786 		ret = iw_cm_reject(id_priv->cm_id.iw,  in rdma_reject()
4789 		ret = -ENOSYS;  in rdma_reject()
4802 	if (!id_priv->cm_id.ib)  in rdma_disconnect()
4803 		return -EINVAL;  in rdma_disconnect()
4805 	if (rdma_cap_ib_cm(id->device, id->port_num)) {  in rdma_disconnect()
4811 		if (ib_send_cm_dreq(id_priv->cm_id.ib, NULL, 0)) {  in rdma_disconnect()
4812 			if (!ib_send_cm_drep(id_priv->cm_id.ib, NULL, 0))  in rdma_disconnect()
4817 	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {  in rdma_disconnect()
4818 		ret = iw_cm_disconnect(id_priv->cm_id.iw, 0);  in rdma_disconnect()
4820 		ret = -EINVAL;  in rdma_disconnect()
4830 			      struct cma_multicast *mc)  in cma_make_mc_event()  argument
4840 	event->status = status;  in cma_make_mc_event()
4841 	event->param.ud.private_data = mc->context;  in cma_make_mc_event()
4843 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4847 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_make_mc_event()
4848 	ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_make_mc_event()
4850 		id_priv->cma_dev  in cma_make_mc_event()
4851 			->default_gid_type[id_priv->id.port_num -  in cma_make_mc_event()
4853 						   id_priv->cma_dev->device)];  in cma_make_mc_event()
4855 	event->event = RDMA_CM_EVENT_MULTICAST_JOIN;  in cma_make_mc_event()
4856 	if (ib_init_ah_from_mcmember(id_priv->id.device, id_priv->id.port_num,  in cma_make_mc_event()
4857 				     &multicast->rec, ndev, gid_type,  in cma_make_mc_event()
4858 				     &event->param.ud.ah_attr)) {  in cma_make_mc_event()
4859 		event->event = RDMA_CM_EVENT_MULTICAST_ERROR;  in cma_make_mc_event()
4863 	event->param.ud.qp_num = 0xFFFFFF;  in cma_make_mc_event()
4864 	event->param.ud.qkey = id_priv->qkey;  in cma_make_mc_event()
4872 	struct cma_multicast *mc = multicast->context;  in cma_ib_mc_handler()  local
4873 	struct rdma_id_private *id_priv = mc->id_priv;  in cma_ib_mc_handler()
4877 	mutex_lock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4878 	if (READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL ||  in cma_ib_mc_handler()
4879 	    READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING)  in cma_ib_mc_handler()
4882 	ret = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));  in cma_ib_mc_handler()
4884 		cma_make_mc_event(status, id_priv, multicast, &event, mc);  in cma_ib_mc_handler()
4891 	mutex_unlock(&id_priv->handler_mutex);  in cma_ib_mc_handler()
4899 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_set_mgid()
4905 	} else if ((addr->sa_family == AF_INET6) &&  in cma_set_mgid()
4906 		   ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFFF0FFFF) ==  in cma_set_mgid()
4909 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_set_mgid()
4910 	} else if (addr->sa_family == AF_IB) {  in cma_set_mgid()
4911 		memcpy(mgid, &((struct sockaddr_ib *) addr)->sib_addr, sizeof *mgid);  in cma_set_mgid()
4912 	} else if (addr->sa_family == AF_INET6) {  in cma_set_mgid()
4913 		ipv6_ib_mc_map(&sin6->sin6_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4914 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4918 		ip_ib_mc_map(sin->sin_addr.s_addr, dev_addr->broadcast, mc_map);  in cma_set_mgid()
4919 		if (id_priv->id.ps == RDMA_PS_UDP)  in cma_set_mgid()
4926 				 struct cma_multicast *mc)  in cma_join_ib_multicast()  argument
4929 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_join_ib_multicast()
4934 	ret = ib_sa_get_mcmember_rec(id_priv->id.device, id_priv->id.port_num,  in cma_join_ib_multicast()
4939 	if (!id_priv->qkey) {  in cma_join_ib_multicast()
4945 	cma_set_mgid(id_priv, (struct sockaddr *) &mc->addr, &rec.mgid);  in cma_join_ib_multicast()
4946 	rec.qkey = cpu_to_be32(id_priv->qkey);  in cma_join_ib_multicast()
4949 	rec.join_state = mc->join_state;  in cma_join_ib_multicast()
4957 	if (id_priv->id.ps == RDMA_PS_IPOIB)  in cma_join_ib_multicast()
4964 	mc->sa_mc = ib_sa_join_multicast(&sa_client, id_priv->id.device,  in cma_join_ib_multicast()
4965 					 id_priv->id.port_num, &rec, comp_mask,  in cma_join_ib_multicast()
4966 					 GFP_KERNEL, cma_ib_mc_handler, mc);  in cma_join_ib_multicast()
4967 	return PTR_ERR_OR_ZERO(mc->sa_mc);  in cma_join_ib_multicast()
4978 	} else if (addr->sa_family == AF_INET6) {  in cma_iboe_set_mgid()
4979 		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);  in cma_iboe_set_mgid()
4981 		mgid->raw[0] =  in cma_iboe_set_mgid()
4983 		mgid->raw[1] =  in cma_iboe_set_mgid()
4985 		mgid->raw[2] = 0;  in cma_iboe_set_mgid()
4986 		mgid->raw[3] = 0;  in cma_iboe_set_mgid()
4987 		mgid->raw[4] = 0;  in cma_iboe_set_mgid()
4988 		mgid->raw[5] = 0;  in cma_iboe_set_mgid()
4989 		mgid->raw[6] = 0;  in cma_iboe_set_mgid()
4990 		mgid->raw[7] = 0;  in cma_iboe_set_mgid()
4991 		mgid->raw[8] = 0;  in cma_iboe_set_mgid()
4992 		mgid->raw[9] = 0;  in cma_iboe_set_mgid()
4993 		mgid->raw[10] = 0xff;  in cma_iboe_set_mgid()
4994 		mgid->raw[11] = 0xff;  in cma_iboe_set_mgid()
4995 		*(__be32 *)(&mgid->raw[12]) = sin->sin_addr.s_addr;  in cma_iboe_set_mgid()
5000 				   struct cma_multicast *mc)  in cma_iboe_join_multicast()  argument
5002 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_iboe_join_multicast()
5004 	struct sockaddr *addr = (struct sockaddr *)&mc->addr;  in cma_iboe_join_multicast()
5010 	send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);  in cma_iboe_join_multicast()
5013 		return -EINVAL;  in cma_iboe_join_multicast()
5015 	gid_type = id_priv->cma_dev->default_gid_type[id_priv->id.port_num -  in cma_iboe_join_multicast()
5016 		   rdma_start_port(id_priv->cma_dev->device)];  in cma_iboe_join_multicast()
5020 	if (dev_addr->bound_dev_if)  in cma_iboe_join_multicast()
5021 		ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);  in cma_iboe_join_multicast()
5023 		return -ENODEV;  in cma_iboe_join_multicast()
5027 	ib.rec.mtu = iboe_get_mtu(ndev->mtu);  in cma_iboe_join_multicast()
5029 	if (addr->sa_family == AF_INET) {  in cma_iboe_join_multicast()
5039 			err = -ENOTSUPP;  in cma_iboe_join_multicast()
5043 		return err ?: -EINVAL;  in cma_iboe_join_multicast()
5045 	if (!id_priv->qkey)  in cma_iboe_join_multicast()
5048 	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,  in cma_iboe_join_multicast()
5050 	INIT_WORK(&mc->iboe_join.work, cma_iboe_join_work_handler);  in cma_iboe_join_multicast()
5051 	cma_make_mc_event(0, id_priv, &ib, &mc->iboe_join.event, mc);  in cma_iboe_join_multicast()
5052 	queue_work(cma_wq, &mc->iboe_join.work);  in cma_iboe_join_multicast()
5061 	struct cma_multicast *mc;  in rdma_join_multicast()  local
5065 	if (WARN_ON(id->qp))  in rdma_join_multicast()
5066 		return -EINVAL;  in rdma_join_multicast()
5069 	if (!id->device || (READ_ONCE(id_priv->state) != RDMA_CM_ADDR_BOUND &&  in rdma_join_multicast()
5070 			    READ_ONCE(id_priv->state) != RDMA_CM_ADDR_RESOLVED))  in rdma_join_multicast()
5071 		return -EINVAL;  in rdma_join_multicast()
5073 	if (id_priv->id.qp_type != IB_QPT_UD)  in rdma_join_multicast()
5074 		return -EINVAL;  in rdma_join_multicast()
5076 	mc = kzalloc(sizeof(*mc), GFP_KERNEL);  in rdma_join_multicast()
5077 	if (!mc)  in rdma_join_multicast()
5078 		return -ENOMEM;  in rdma_join_multicast()
5080 	memcpy(&mc->addr, addr, rdma_addr_size(addr));  in rdma_join_multicast()
5081 	mc->context = context;  in rdma_join_multicast()
5082 	mc->id_priv = id_priv;  in rdma_join_multicast()
5083 	mc->join_state = join_state;  in rdma_join_multicast()
5085 	if (rdma_protocol_roce(id->device, id->port_num)) {  in rdma_join_multicast()
5086 		ret = cma_iboe_join_multicast(id_priv, mc);  in rdma_join_multicast()
5089 	} else if (rdma_cap_ib_mcast(id->device, id->port_num)) {  in rdma_join_multicast()
5090 		ret = cma_join_ib_multicast(id_priv, mc);  in rdma_join_multicast()
5094 		ret = -ENOSYS;  in rdma_join_multicast()
5098 	spin_lock(&id_priv->lock);  in rdma_join_multicast()
5099 	list_add(&mc->list, &id_priv->mc_list);  in rdma_join_multicast()
5100 	spin_unlock(&id_priv->lock);  in rdma_join_multicast()
5104 	kfree(mc);  in rdma_join_multicast()
5112 	struct cma_multicast *mc;  in rdma_leave_multicast()  local
5115 	spin_lock_irq(&id_priv->lock);  in rdma_leave_multicast()
5116 	list_for_each_entry(mc, &id_priv->mc_list, list) {  in rdma_leave_multicast()
5117 		if (memcmp(&mc->addr, addr, rdma_addr_size(addr)) != 0)  in rdma_leave_multicast()
5119 		list_del(&mc->list);  in rdma_leave_multicast()
5120 		spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
5122 		WARN_ON(id_priv->cma_dev->device != id->device);  in rdma_leave_multicast()
5123 		destroy_mc(id_priv, mc);  in rdma_leave_multicast()
5126 	spin_unlock_irq(&id_priv->lock);  in rdma_leave_multicast()
5135 	dev_addr = &id_priv->id.route.addr.dev_addr;  in cma_netdev_change()
5137 	if ((dev_addr->bound_dev_if == ndev->ifindex) &&  in cma_netdev_change()
5138 	    (net_eq(dev_net(ndev), dev_addr->net)) &&  in cma_netdev_change()
5139 	    memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) {  in cma_netdev_change()
5141 			ndev->name, &id_priv->id);  in cma_netdev_change()
5144 			return -ENOMEM;  in cma_netdev_change()
5146 		INIT_WORK(&work->work, cma_work_handler);  in cma_netdev_change()
5147 		work->id = id_priv;  in cma_netdev_change()
5148 		work->event.event = RDMA_CM_EVENT_ADDR_CHANGE;  in cma_netdev_change()
5150 		queue_work(cma_wq, &work->work);  in cma_netdev_change()
5172 		list_for_each_entry(id_priv, &cma_dev->id_list, device_item) {  in cma_netdev_callback()
5189 	mutex_lock(&id_priv->handler_mutex);  in cma_netevent_work_handler()
5191 	if (READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING ||  in cma_netevent_work_handler()
5192 	    READ_ONCE(id_priv->state) == RDMA_CM_DEVICE_REMOVAL)  in cma_netevent_work_handler()
5196 	event.status = -ETIMEDOUT;  in cma_netevent_work_handler()
5199 		__acquire(&id_priv->handler_mutex);  in cma_netevent_work_handler()
5200 		id_priv->cm_id.ib = NULL;  in cma_netevent_work_handler()
5207 	mutex_unlock(&id_priv->handler_mutex);  in cma_netevent_work_handler()
5223 	if (neigh->tbl->family == AF_INET6) {  in cma_netevent_callback()
5227 		neigh_sock_6.sin6_addr = *(struct in6_addr *)neigh->primary_key;  in cma_netevent_callback()
5228 		ips_node = node_from_ndev_ip(&id_table, neigh->dev->ifindex,  in cma_netevent_callback()
5230 	} else if (neigh->tbl->family == AF_INET) {  in cma_netevent_callback()
5234 		neigh_sock_4.sin_addr.s_addr = *(__be32 *)(neigh->primary_key);  in cma_netevent_callback()
5235 		ips_node = node_from_ndev_ip(&id_table, neigh->dev->ifindex,  in cma_netevent_callback()
5243 	list_for_each_entry(current_id, &ips_node->id_list, id_list_entry) {  in cma_netevent_callback()
5244 		if (!memcmp(current_id->id.route.addr.dev_addr.dst_dev_addr,  in cma_netevent_callback()
5245 			   neigh->ha, ETH_ALEN))  in cma_netevent_callback()
5248 		queue_work(cma_wq, &current_id->id.net_work);  in cma_netevent_callback()
5269 	mutex_lock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
5271 	spin_lock_irqsave(&id_priv->lock, flags);  in cma_send_device_removal_put()
5272 	state = id_priv->state;  in cma_send_device_removal_put()
5274 		spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
5275 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
5279 	id_priv->state = RDMA_CM_DEVICE_REMOVAL;  in cma_send_device_removal_put()
5280 	spin_unlock_irqrestore(&id_priv->lock, flags);  in cma_send_device_removal_put()
5288 		mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
5293 	mutex_unlock(&id_priv->handler_mutex);  in cma_send_device_removal_put()
5306 	while (!list_empty(&cma_dev->id_list)) {  in cma_process_remove()
5308 			&cma_dev->id_list, struct rdma_id_private, device_item);  in cma_process_remove()
5310 		list_del_init(&id_priv->listen_item);  in cma_process_remove()
5311 		list_del_init(&id_priv->device_item);  in cma_process_remove()
5322 	wait_for_completion(&cma_dev->comp);  in cma_process_remove()
5346 		return -EOPNOTSUPP;  in cma_add_one()
5350 		return -ENOMEM;  in cma_add_one()
5352 	cma_dev->device = device;  in cma_add_one()
5353 	cma_dev->default_gid_type = kcalloc(device->phys_port_cnt,  in cma_add_one()
5354 					    sizeof(*cma_dev->default_gid_type),  in cma_add_one()
5356 	if (!cma_dev->default_gid_type) {  in cma_add_one()
5357 		ret = -ENOMEM;  in cma_add_one()
5361 	cma_dev->default_roce_tos = kcalloc(device->phys_port_cnt,  in cma_add_one()
5362 					    sizeof(*cma_dev->default_roce_tos),  in cma_add_one()
5364 	if (!cma_dev->default_roce_tos) {  in cma_add_one()
5365 		ret = -ENOMEM;  in cma_add_one()
5373 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
5376 			cma_dev->default_gid_type[i - rdma_start_port(device)] =  in cma_add_one()
5378 		cma_dev->default_roce_tos[i - rdma_start_port(device)] = 0;  in cma_add_one()
5381 	init_completion(&cma_dev->comp);  in cma_add_one()
5382 	refcount_set(&cma_dev->refcount, 1);  in cma_add_one()
5383 	INIT_LIST_HEAD(&cma_dev->id_list);  in cma_add_one()
5387 	list_add_tail(&cma_dev->list, &dev_list);  in cma_add_one()
5399 	list_del(&cma_dev->list);  in cma_add_one()
5404 	kfree(cma_dev->default_roce_tos);  in cma_add_one()
5406 	kfree(cma_dev->default_gid_type);  in cma_add_one()
5420 	list_del(&cma_dev->list);  in cma_remove_one()
5424 	kfree(cma_dev->default_roce_tos);  in cma_remove_one()
5425 	kfree(cma_dev->default_gid_type);  in cma_remove_one()
5433 	xa_init(&pernet->tcp_ps);  in cma_init_net()
5434 	xa_init(&pernet->udp_ps);  in cma_init_net()
5435 	xa_init(&pernet->ipoib_ps);  in cma_init_net()
5436 	xa_init(&pernet->ib_ps);  in cma_init_net()
5445 	WARN_ON(!xa_empty(&pernet->tcp_ps));  in cma_exit_net()
5446 	WARN_ON(!xa_empty(&pernet->udp_ps));  in cma_exit_net()
5447 	WARN_ON(!xa_empty(&pernet->ipoib_ps));  in cma_exit_net()
5448 	WARN_ON(!xa_empty(&pernet->ib_ps));  in cma_exit_net()
5477 		return -ENOMEM;  in cma_init()