11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Copyright (c) 2004 Topspin Communications. All rights reserved. 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * This software is available to you under a choice of one of two 51da177e4SLinus Torvalds * licenses. You may choose to be licensed under the terms of the GNU 61da177e4SLinus Torvalds * General Public License (GPL) Version 2, available from the file 71da177e4SLinus Torvalds * COPYING in the main directory of this source tree, or the 81da177e4SLinus Torvalds * OpenIB.org BSD license below: 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or 111da177e4SLinus Torvalds * without modification, are permitted provided that the following 121da177e4SLinus Torvalds * conditions are met: 131da177e4SLinus Torvalds * 141da177e4SLinus Torvalds * - Redistributions of source code must retain the above 151da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 161da177e4SLinus Torvalds * disclaimer. 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * - Redistributions in binary form must reproduce the above 191da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 201da177e4SLinus Torvalds * disclaimer in the documentation and/or other materials 211da177e4SLinus Torvalds * provided with the distribution. 221da177e4SLinus Torvalds * 231da177e4SLinus Torvalds * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 241da177e4SLinus Torvalds * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 251da177e4SLinus Torvalds * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 261da177e4SLinus Torvalds * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 271da177e4SLinus Torvalds * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 281da177e4SLinus Torvalds * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 291da177e4SLinus Torvalds * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 301da177e4SLinus Torvalds * SOFTWARE. 311da177e4SLinus Torvalds */ 321da177e4SLinus Torvalds 331da177e4SLinus Torvalds #include <linux/module.h> 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #include <linux/init.h> 361da177e4SLinus Torvalds #include <linux/seq_file.h> 371da177e4SLinus Torvalds 387c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds #include "ipoib.h" 411da177e4SLinus Torvalds 4243cb76d9SGreg Kroah-Hartman static ssize_t show_parent(struct device *d, struct device_attribute *attr, 4343cb76d9SGreg Kroah-Hartman char *buf) 441da177e4SLinus Torvalds { 4543cb76d9SGreg Kroah-Hartman struct net_device *dev = to_net_dev(d); 461da177e4SLinus Torvalds struct ipoib_dev_priv *priv = netdev_priv(dev); 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds return sprintf(buf, "%s\n", priv->parent->name); 491da177e4SLinus Torvalds } 5043cb76d9SGreg Kroah-Hartman static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL); 511da177e4SLinus Torvalds 529baa0b03SOr Gerlitz int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, 539baa0b03SOr Gerlitz u16 pkey, int type) 541da177e4SLinus Torvalds { 551da177e4SLinus Torvalds int result; 561da177e4SLinus Torvalds 57bc7b3a36SShirley Ma priv->max_ib_mtu = ppriv->max_ib_mtu; 58b4132efaSEli Cohen /* MTU will be reset when mcast join happens */ 59b4132efaSEli Cohen priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu); 60b4132efaSEli Cohen priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu; 612c153959SErez Shitrit priv->parent = ppriv->dev; 621da177e4SLinus Torvalds set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); 631da177e4SLinus Torvalds 64f7534f45SZhu Yanjun ipoib_set_dev_features(priv, ppriv->ca); 6583bb63f6SOr Gerlitz 661da177e4SLinus Torvalds priv->pkey = pkey; 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); 69492a7e67SMark Bloch memcpy(&priv->local_gid, &ppriv->local_gid, sizeof(priv->local_gid)); 70492a7e67SMark Bloch set_bit(IPOIB_FLAG_DEV_ADDR_SET, &priv->flags); 711da177e4SLinus Torvalds priv->dev->broadcast[8] = pkey >> 8; 721da177e4SLinus Torvalds priv->dev->broadcast[9] = pkey & 0xff; 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port); 751da177e4SLinus Torvalds if (result < 0) { 761da177e4SLinus Torvalds ipoib_warn(ppriv, "failed to initialize subinterface: " 771da177e4SLinus Torvalds "device %s, port %d", 781da177e4SLinus Torvalds ppriv->ca->name, ppriv->port); 79edb5abb1SRoland Dreier goto err; 801da177e4SLinus Torvalds } 811da177e4SLinus Torvalds 82cbbe1efaSRoland Dreier result = register_netdevice(priv->dev); 831da177e4SLinus Torvalds if (result) { 841da177e4SLinus Torvalds ipoib_warn(priv, "failed to initialize; error %i", result); 851da177e4SLinus Torvalds goto register_failed; 861da177e4SLinus Torvalds } 871da177e4SLinus Torvalds 881732b0efSRoland Dreier ipoib_create_debug_files(priv->dev); 891da177e4SLinus Torvalds 90862096a8SOr Gerlitz /* RTNL childs don't need proprietary sysfs entries */ 91862096a8SOr Gerlitz if (type == IPOIB_LEGACY_CHILD) { 92839fcabaSMichael S. Tsirkin if (ipoib_cm_add_mode_attr(priv->dev)) 93839fcabaSMichael S. Tsirkin goto sysfs_failed; 941da177e4SLinus Torvalds if (ipoib_add_pkey_attr(priv->dev)) 951da177e4SLinus Torvalds goto sysfs_failed; 96335a64a5SOr Gerlitz if (ipoib_add_umcast_attr(priv->dev)) 97335a64a5SOr Gerlitz goto sysfs_failed; 981da177e4SLinus Torvalds 9943cb76d9SGreg Kroah-Hartman if (device_create_file(&priv->dev->dev, &dev_attr_parent)) 1001da177e4SLinus Torvalds goto sysfs_failed; 101862096a8SOr Gerlitz } 1021da177e4SLinus Torvalds 1039baa0b03SOr Gerlitz priv->child_type = type; 1041da177e4SLinus Torvalds list_add_tail(&priv->list, &ppriv->child_intfs); 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds return 0; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds sysfs_failed: 1099baa0b03SOr Gerlitz result = -ENOMEM; 1101732b0efSRoland Dreier ipoib_delete_debug_files(priv->dev); 111cbbe1efaSRoland Dreier unregister_netdevice(priv->dev); 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds register_failed: 1141da177e4SLinus Torvalds ipoib_dev_cleanup(priv->dev); 1151da177e4SLinus Torvalds 1161da177e4SLinus Torvalds err: 1179baa0b03SOr Gerlitz return result; 1189baa0b03SOr Gerlitz } 1199baa0b03SOr Gerlitz 1209baa0b03SOr Gerlitz int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) 1219baa0b03SOr Gerlitz { 1229baa0b03SOr Gerlitz struct ipoib_dev_priv *ppriv, *priv; 1239baa0b03SOr Gerlitz char intf_name[IFNAMSIZ]; 1249baa0b03SOr Gerlitz struct ipoib_dev_priv *tpriv; 1259baa0b03SOr Gerlitz int result; 1269baa0b03SOr Gerlitz 1279baa0b03SOr Gerlitz if (!capable(CAP_NET_ADMIN)) 1289baa0b03SOr Gerlitz return -EPERM; 1299baa0b03SOr Gerlitz 1309baa0b03SOr Gerlitz ppriv = netdev_priv(pdev); 1319baa0b03SOr Gerlitz 132198b12f7SErez Shitrit if (test_bit(IPOIB_FLAG_GOING_DOWN, &ppriv->flags)) 133198b12f7SErez Shitrit return -EPERM; 134198b12f7SErez Shitrit 1359baa0b03SOr Gerlitz snprintf(intf_name, sizeof intf_name, "%s.%04x", 1369baa0b03SOr Gerlitz ppriv->dev->name, pkey); 1379baa0b03SOr Gerlitz priv = ipoib_intf_alloc(intf_name); 1389baa0b03SOr Gerlitz if (!priv) 1399baa0b03SOr Gerlitz return -ENOMEM; 1409baa0b03SOr Gerlitz 1419baa0b03SOr Gerlitz if (!rtnl_trylock()) 1429baa0b03SOr Gerlitz return restart_syscall(); 1439baa0b03SOr Gerlitz 144f47944ccSErez Shitrit down_write(&ppriv->vlan_rwsem); 1459baa0b03SOr Gerlitz 1469baa0b03SOr Gerlitz /* 1479baa0b03SOr Gerlitz * First ensure this isn't a duplicate. We check the parent device and 1489baa0b03SOr Gerlitz * then all of the legacy child interfaces to make sure the Pkey 1499baa0b03SOr Gerlitz * doesn't match. 1509baa0b03SOr Gerlitz */ 1519baa0b03SOr Gerlitz if (ppriv->pkey == pkey) { 1529baa0b03SOr Gerlitz result = -ENOTUNIQ; 1539baa0b03SOr Gerlitz goto out; 1549baa0b03SOr Gerlitz } 1559baa0b03SOr Gerlitz 1569baa0b03SOr Gerlitz list_for_each_entry(tpriv, &ppriv->child_intfs, list) { 1579baa0b03SOr Gerlitz if (tpriv->pkey == pkey && 1589baa0b03SOr Gerlitz tpriv->child_type == IPOIB_LEGACY_CHILD) { 1599baa0b03SOr Gerlitz result = -ENOTUNIQ; 1609baa0b03SOr Gerlitz goto out; 1619baa0b03SOr Gerlitz } 1629baa0b03SOr Gerlitz } 1639baa0b03SOr Gerlitz 1649baa0b03SOr Gerlitz result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD); 1659baa0b03SOr Gerlitz 1669baa0b03SOr Gerlitz out: 167f47944ccSErez Shitrit up_write(&ppriv->vlan_rwsem); 1689baa0b03SOr Gerlitz 16989a3987aSFeras Daoud rtnl_unlock(); 17089a3987aSFeras Daoud 1719baa0b03SOr Gerlitz if (result) 172edb5abb1SRoland Dreier free_netdev(priv->dev); 173edb5abb1SRoland Dreier 1741da177e4SLinus Torvalds return result; 1751da177e4SLinus Torvalds } 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) 1781da177e4SLinus Torvalds { 1791da177e4SLinus Torvalds struct ipoib_dev_priv *ppriv, *priv, *tpriv; 180edb5abb1SRoland Dreier struct net_device *dev = NULL; 1811da177e4SLinus Torvalds 1821da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 1831da177e4SLinus Torvalds return -EPERM; 1841da177e4SLinus Torvalds 1851da177e4SLinus Torvalds ppriv = netdev_priv(pdev); 1861da177e4SLinus Torvalds 187198b12f7SErez Shitrit if (test_bit(IPOIB_FLAG_GOING_DOWN, &ppriv->flags)) 188198b12f7SErez Shitrit return -EPERM; 189198b12f7SErez Shitrit 19026574401SEric W. Biederman if (!rtnl_trylock()) 19126574401SEric W. Biederman return restart_syscall(); 192f47944ccSErez Shitrit 193f47944ccSErez Shitrit down_write(&ppriv->vlan_rwsem); 1941da177e4SLinus Torvalds list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { 1959baa0b03SOr Gerlitz if (priv->pkey == pkey && 1969baa0b03SOr Gerlitz priv->child_type == IPOIB_LEGACY_CHILD) { 1971da177e4SLinus Torvalds list_del(&priv->list); 198edb5abb1SRoland Dreier dev = priv->dev; 1991da177e4SLinus Torvalds break; 2001da177e4SLinus Torvalds } 2011da177e4SLinus Torvalds } 202f47944ccSErez Shitrit up_write(&ppriv->vlan_rwsem); 203f47944ccSErez Shitrit 2041c3098cdSFeras Daoud if (dev) { 2051c3098cdSFeras Daoud ipoib_dbg(ppriv, "delete child vlan %s\n", dev->name); 2061c3098cdSFeras Daoud unregister_netdevice(dev); 2071c3098cdSFeras Daoud } 2081c3098cdSFeras Daoud 209cbbe1efaSRoland Dreier rtnl_unlock(); 2101da177e4SLinus Torvalds 211edb5abb1SRoland Dreier if (dev) { 212edb5abb1SRoland Dreier free_netdev(dev); 213edb5abb1SRoland Dreier return 0; 214edb5abb1SRoland Dreier } 215edb5abb1SRoland Dreier 216edb5abb1SRoland Dreier return -ENODEV; 2171da177e4SLinus Torvalds } 218