2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/slab.h>
37 #include <linux/seq_file.h>
39 #include <asm/uaccess.h>
43 static ssize_t show_parent(struct device *d, struct device_attribute *attr,
46 struct net_device *dev = to_net_dev(d);
47 struct ipoib_dev_priv *priv = netdev_priv(dev);
49 return sprintf(buf, "%s\n", priv->parent->name);
51 static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL);
53 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
55 struct ipoib_dev_priv *ppriv, *priv;
56 char intf_name[IFNAMSIZ];
59 if (!capable(CAP_NET_ADMIN))
62 ppriv = netdev_priv(pdev);
65 mutex_lock(&ppriv->vlan_mutex);
68 * First ensure this isn't a duplicate. We check the parent device and
69 * then all of the child interfaces to make sure the Pkey doesn't match.
71 if (ppriv->pkey == pkey) {
77 list_for_each_entry(priv, &ppriv->child_intfs, list) {
78 if (priv->pkey == pkey) {
85 snprintf(intf_name, sizeof intf_name, "%s.%04x",
86 ppriv->dev->name, pkey);
87 priv = ipoib_intf_alloc(intf_name);
93 priv->max_ib_mtu = ppriv->max_ib_mtu;
94 /* MTU will be reset when mcast join happens */
95 priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu);
96 priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu;
97 set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
99 result = ipoib_set_dev_features(priv, ppriv->ca);
105 memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN);
106 priv->dev->broadcast[8] = pkey >> 8;
107 priv->dev->broadcast[9] = pkey & 0xff;
109 result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port);
111 ipoib_warn(ppriv, "failed to initialize subinterface: "
112 "device %s, port %d",
113 ppriv->ca->name, ppriv->port);
117 result = register_netdevice(priv->dev);
119 ipoib_warn(priv, "failed to initialize; error %i", result);
120 goto register_failed;
123 priv->parent = ppriv->dev;
125 ipoib_create_debug_files(priv->dev);
127 if (ipoib_cm_add_mode_attr(priv->dev))
129 if (ipoib_add_pkey_attr(priv->dev))
131 if (ipoib_add_umcast_attr(priv->dev))
134 if (device_create_file(&priv->dev->dev, &dev_attr_parent))
137 list_add_tail(&priv->list, &ppriv->child_intfs);
139 mutex_unlock(&ppriv->vlan_mutex);
145 ipoib_delete_debug_files(priv->dev);
146 unregister_netdevice(priv->dev);
149 ipoib_dev_cleanup(priv->dev);
152 mutex_unlock(&ppriv->vlan_mutex);
155 free_netdev(priv->dev);
160 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
162 struct ipoib_dev_priv *ppriv, *priv, *tpriv;
163 struct net_device *dev = NULL;
165 if (!capable(CAP_NET_ADMIN))
168 ppriv = netdev_priv(pdev);
171 mutex_lock(&ppriv->vlan_mutex);
172 list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
173 if (priv->pkey == pkey) {
174 unregister_netdevice(priv->dev);
175 ipoib_dev_cleanup(priv->dev);
176 list_del(&priv->list);
181 mutex_unlock(&ppriv->vlan_mutex);