1 files changed, 99 insertions, 59 deletions

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index dab4b41f171..d570030d899 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -328,28 +328,6 @@ static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
 	return ret;
 }
 
-static int find_gid_port(struct ib_device *device, union ib_gid *gid, u8 port_num)
-{
-	int i;
-	int err;
-	struct ib_port_attr props;
-	union ib_gid tmp;
-
-	err = ib_query_port(device, port_num, &props);
-	if (err)
-		return err;
-
-	for (i = 0; i < props.gid_tbl_len; ++i) {
-		err = ib_query_gid(device, port_num, i, &tmp);
-		if (err)
-			return err;
-		if (!memcmp(&tmp, gid, sizeof tmp))
-			return 0;
-	}
-
-	return -EADDRNOTAVAIL;
-}
-
 static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr)
 {
 	dev_addr->dev_type = ARPHRD_INFINIBAND;
@@ -362,7 +340,7 @@ static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_a
 	int ret;
 
 	if (addr->sa_family != AF_IB) {
-		ret = rdma_translate_ip(addr, dev_addr);
+		ret = rdma_translate_ip(addr, dev_addr, NULL);
 	} else {
 		cma_translate_ib((struct sockaddr_ib *) addr, dev_addr);
 		ret = 0;
@@ -371,13 +349,14 @@ static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_a
 	return ret;
 }
 
-static int cma_acquire_dev(struct rdma_id_private *id_priv)
+static int cma_acquire_dev(struct rdma_id_private *id_priv,
+			   struct rdma_id_private *listen_id_priv)
 {
 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
 	struct cma_device *cma_dev;
 	union ib_gid gid, iboe_gid;
 	int ret = -ENODEV;
-	u8 port;
+	u8 port, found_port;
 	enum rdma_link_layer dev_ll = dev_addr->dev_type == ARPHRD_INFINIBAND ?
 		IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 
@@ -386,20 +365,44 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
 		return -EINVAL;
 
 	mutex_lock(&lock);
-	iboe_addr_get_sgid(dev_addr, &iboe_gid);
+	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
+		    &iboe_gid);
+
 	memcpy(&gid, dev_addr->src_dev_addr +
 	       rdma_addr_gid_offset(dev_addr), sizeof gid);
+	if (listen_id_priv &&
+	    rdma_port_get_link_layer(listen_id_priv->id.device,
+				     listen_id_priv->id.port_num) == dev_ll) {
+		cma_dev = listen_id_priv->cma_dev;
+		port = listen_id_priv->id.port_num;
+		if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB &&
+		    rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET)
+			ret = ib_find_cached_gid(cma_dev->device, &iboe_gid,
+						 &found_port, NULL);
+		else
+			ret = ib_find_cached_gid(cma_dev->device, &gid,
+						 &found_port, NULL);
+
+		if (!ret && (port  == found_port)) {
+			id_priv->id.port_num = found_port;
+			goto out;
+		}
+	}
 	list_for_each_entry(cma_dev, &dev_list, list) {
 		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port) {
+			if (listen_id_priv &&
+			    listen_id_priv->cma_dev == cma_dev &&
+			    listen_id_priv->id.port_num == port)
+				continue;
 			if (rdma_port_get_link_layer(cma_dev->device, port) == dev_ll) {
 				if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB &&
 				    rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET)
-					ret = find_gid_port(cma_dev->device, &iboe_gid, port);
+					ret = ib_find_cached_gid(cma_dev->device, &iboe_gid, &found_port, NULL);
 				else
-					ret = find_gid_port(cma_dev->device, &gid, port);
+					ret = ib_find_cached_gid(cma_dev->device, &gid, &found_port, NULL);
 
-				if (!ret) {
-					id_priv->id.port_num = port;
+				if (!ret && (port == found_port)) {
+					id_priv->id.port_num = found_port;
 					goto out;
 				}
 			}
@@ -602,6 +605,7 @@ static int cma_modify_qp_rtr(struct rdma_id_private *id_priv,
 {
 	struct ib_qp_attr qp_attr;
 	int qp_attr_mask, ret;
+	union ib_gid sgid;
 
 	mutex_lock(&id_priv->qp_mutex);
 	if (!id_priv->id.qp) {
@@ -624,6 +628,20 @@ static int cma_modify_qp_rtr(struct rdma_id_private *id_priv,
 	if (ret)
 		goto out;
 
+	ret = ib_query_gid(id_priv->id.device, id_priv->id.port_num,
+			   qp_attr.ah_attr.grh.sgid_index, &sgid);
+	if (ret)
+		goto out;
+
+	if (rdma_node_get_transport(id_priv->cma_dev->device->node_type)
+	    == RDMA_TRANSPORT_IB &&
+	    rdma_port_get_link_layer(id_priv->id.device, id_priv->id.port_num)
+	    == IB_LINK_LAYER_ETHERNET) {
+		ret = rdma_addr_find_smac_by_sgid(&sgid, qp_attr.smac, NULL);
+
+		if (ret)
+			goto out;
+	}
 	if (conn_param)
 		qp_attr.max_dest_rd_atomic = conn_param->responder_resources;
 	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
@@ -724,6 +742,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
 		else
 			ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,
 						 qp_attr_mask);
+
 		if (qp_attr->qp_state == IB_QPS_RTR)
 			qp_attr->rq_psn = id_priv->seq_num;
 		break;
@@ -1292,7 +1311,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	}
 
 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
-	ret = cma_acquire_dev(conn_id);
+	ret = cma_acquire_dev(conn_id, listen_id);
 	if (ret)
 		goto err2;
 
@@ -1308,13 +1327,13 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	ret = conn_id->id.event_handler(&conn_id->id, &event);
 	if (ret)
 		goto err3;
-
 	/*
 	 * Acquire mutex to prevent user executing rdma_destroy_id()
 	 * while we're accessing the cm_id.
 	 */
 	mutex_lock(&lock);
-	if (cma_comp(conn_id, RDMA_CM_CONNECT) && (conn_id->id.qp_type != IB_QPT_UD))
+	if (cma_comp(conn_id, RDMA_CM_CONNECT) &&
+	    (conn_id->id.qp_type != IB_QPT_UD))
 		ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
 	mutex_unlock(&lock);
 	mutex_unlock(&conn_id->handler_mutex);
@@ -1451,7 +1470,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 {
 	struct rdma_cm_id *new_cm_id;
 	struct rdma_id_private *listen_id, *conn_id;
-	struct net_device *dev = NULL;
 	struct rdma_cm_event event;
 	int ret;
 	struct ib_device_attr attr;
@@ -1474,14 +1492,14 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
 	conn_id->state = RDMA_CM_CONNECT;
 
-	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr);
+	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr, NULL);
 	if (ret) {
 		mutex_unlock(&conn_id->handler_mutex);
 		rdma_destroy_id(new_cm_id);
 		goto out;
 	}
 
-	ret = cma_acquire_dev(conn_id);
+	ret = cma_acquire_dev(conn_id, listen_id);
 	if (ret) {
 		mutex_unlock(&conn_id->handler_mutex);
 		rdma_destroy_id(new_cm_id);
@@ -1529,8 +1547,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	cma_deref_id(conn_id);
 
 out:
-	if (dev)
-		dev_put(dev);
 	mutex_unlock(&listen_id->handler_mutex);
 	return ret;
 }
@@ -1848,6 +1864,26 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
 	return 0;
 }
 
+static int iboe_tos_to_sl(struct net_device *ndev, int tos)
+{
+	int prio;
+	struct net_device *dev;
+
+	prio = rt_tos2priority(tos);
+	dev = ndev->priv_flags & IFF_802_1Q_VLAN ?
+		vlan_dev_real_dev(ndev) : ndev;
+
+	if (dev->num_tc)
+		return netdev_get_prio_tc_map(dev, prio);
+
+#if IS_ENABLED(CONFIG_VLAN_8021Q)
+	if (ndev->priv_flags & IFF_802_1Q_VLAN)
+		return (vlan_dev_get_egress_qos_mask(ndev, prio) &
+			VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+#endif
+	return 0;
+}
+
 static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 {
 	struct rdma_route *route = &id_priv->id.route;
@@ -1855,7 +1891,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 	struct cma_work *work;
 	int ret;
 	struct net_device *ndev = NULL;
-	u16 vid;
+
 
 	work = kzalloc(sizeof *work, GFP_KERNEL);
 	if (!work)
@@ -1879,20 +1915,20 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 		goto err2;
 	}
 
-	vid = rdma_vlan_dev_vlan_id(ndev);
+	route->path_rec->vlan_id = rdma_vlan_dev_vlan_id(ndev);
+	memcpy(route->path_rec->dmac, addr->dev_addr.dst_dev_addr, ETH_ALEN);
+	memcpy(route->path_rec->smac, ndev->dev_addr, ndev->addr_len);
 
-	iboe_mac_vlan_to_ll(&route->path_rec->sgid, addr->dev_addr.src_dev_addr, vid);
-	iboe_mac_vlan_to_ll(&route->path_rec->dgid, addr->dev_addr.dst_dev_addr, vid);
+	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
+		    &route->path_rec->sgid);
+	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,
+		    &route->path_rec->dgid);
 
 	route->path_rec->hop_limit = 1;
 	route->path_rec->reversible = 1;
 	route->path_rec->pkey = cpu_to_be16(0xffff);
 	route->path_rec->mtu_selector = IB_SA_EQ;
-	route->path_rec->sl = netdev_get_prio_tc_map(
-			ndev->priv_flags & IFF_802_1Q_VLAN ?
-				vlan_dev_real_dev(ndev) : ndev,
-			rt_tos2priority(id_priv->tos));
-
+	route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
 	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);
 	route->path_rec->rate_selector = IB_SA_EQ;
 	route->path_rec->rate = iboe_get_rate(ndev);
@@ -2049,8 +2085,9 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 			   RDMA_CM_ADDR_RESOLVED))
 		goto out;
 
+	memcpy(cma_src_addr(id_priv), src_addr, rdma_addr_size(src_addr));
 	if (!status && !id_priv->cma_dev)
-		status = cma_acquire_dev(id_priv);
+		status = cma_acquire_dev(id_priv, NULL);
 
 	if (status) {
 		if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
@@ -2058,10 +2095,8 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 			goto out;
 		event.event = RDMA_CM_EVENT_ADDR_ERROR;
 		event.status = status;
-	} else {
-		memcpy(cma_src_addr(id_priv), src_addr, rdma_addr_size(src_addr));
+	} else
 		event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
-	}
 
 	if (id_priv->id.event_handler(&id_priv->id, &event)) {
 		cma_exch(id_priv, RDMA_CM_DESTROYING);
@@ -2294,9 +2329,9 @@ static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv)
 	int low, high, remaining;
 	unsigned int rover;
 
-	inet_get_local_port_range(&low, &high);
+	inet_get_local_port_range(&init_net, &low, &high);
 	remaining = (high - low) + 1;
-	rover = net_random() % remaining + low;
+	rover = prandom_u32() % remaining + low;
 retry:
 	if (last_used_port != rover &&
 	    !idr_find(ps, (unsigned short) rover)) {
@@ -2466,8 +2501,11 @@ static int cma_check_linklocal(struct rdma_dev_addr *dev_addr,
 		return 0;
 
 	sin6 = (struct sockaddr_in6 *) addr;
-	if ((ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) &&
-	    !sin6->sin6_scope_id)
+
+	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))
+		return 0;
+
+	if (!sin6->sin6_scope_id)
 			return -EINVAL;
 
 	dev_addr->bound_dev_if = sin6->sin6_scope_id;
@@ -2542,17 +2580,17 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
 	if (ret)
 		goto err1;
 
+	memcpy(cma_src_addr(id_priv), addr, rdma_addr_size(addr));
 	if (!cma_any_addr(addr)) {
 		ret = cma_translate_addr(addr, &id->route.addr.dev_addr);
 		if (ret)
 			goto err1;
 
-		ret = cma_acquire_dev(id_priv);
+		ret = cma_acquire_dev(id_priv, NULL);
 		if (ret)
 			goto err1;
 	}
 
-	memcpy(cma_src_addr(id_priv), addr, rdma_addr_size(addr));
 	if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) {
 		if (addr->sa_family == AF_INET)
 			id_priv->afonly = 1;
@@ -3281,7 +3319,8 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
 		err = -EINVAL;
 		goto out2;
 	}
-	iboe_addr_get_sgid(dev_addr, &mc->multicast.ib->rec.port_gid);
+	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
+		    &mc->multicast.ib->rec.port_gid);
 	work->id = id_priv;
 	work->mc = mc;
 	INIT_WORK(&work->work, iboe_mcast_work_handler);
@@ -3568,7 +3607,8 @@ static int cma_get_id_stats(struct sk_buff *skb, struct netlink_callback *cb)
 
 			id_stats = ibnl_put_msg(skb, &nlh, cb->nlh->nlmsg_seq,
 						sizeof *id_stats, RDMA_NL_RDMA_CM,
-						RDMA_NL_RDMA_CM_ID_STATS);
+						RDMA_NL_RDMA_CM_ID_STATS,
+						NLM_F_MULTI);
 			if (!id_stats)
 				goto out;