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/slab.h> 371da177e4SLinus Torvalds #include <linux/seq_file.h> 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds #include <asm/uaccess.h> 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds #include "ipoib.h" 421da177e4SLinus Torvalds 4343cb76d9SGreg Kroah-Hartman static ssize_t show_parent(struct device *d, struct device_attribute *attr, 4443cb76d9SGreg Kroah-Hartman char *buf) 451da177e4SLinus Torvalds { 4643cb76d9SGreg Kroah-Hartman struct net_device *dev = to_net_dev(d); 471da177e4SLinus Torvalds struct ipoib_dev_priv *priv = netdev_priv(dev); 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds return sprintf(buf, "%s\n", priv->parent->name); 501da177e4SLinus Torvalds } 5143cb76d9SGreg Kroah-Hartman static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL); 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) 541da177e4SLinus Torvalds { 551da177e4SLinus Torvalds struct ipoib_dev_priv *ppriv, *priv; 561da177e4SLinus Torvalds char intf_name[IFNAMSIZ]; 571da177e4SLinus Torvalds int result; 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 601da177e4SLinus Torvalds return -EPERM; 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds ppriv = netdev_priv(pdev); 631da177e4SLinus Torvalds 6426574401SEric W. Biederman if (!rtnl_trylock()) 6526574401SEric W. Biederman return restart_syscall(); 6695ed644fSIngo Molnar mutex_lock(&ppriv->vlan_mutex); 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds /* 691da177e4SLinus Torvalds * First ensure this isn't a duplicate. We check the parent device and 701da177e4SLinus Torvalds * then all of the child interfaces to make sure the Pkey doesn't match. 711da177e4SLinus Torvalds */ 721da177e4SLinus Torvalds if (ppriv->pkey == pkey) { 731da177e4SLinus Torvalds result = -ENOTUNIQ; 74edb5abb1SRoland Dreier priv = NULL; 751da177e4SLinus Torvalds goto err; 761da177e4SLinus Torvalds } 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds list_for_each_entry(priv, &ppriv->child_intfs, list) { 791da177e4SLinus Torvalds if (priv->pkey == pkey) { 801da177e4SLinus Torvalds result = -ENOTUNIQ; 81edb5abb1SRoland Dreier priv = NULL; 821da177e4SLinus Torvalds goto err; 831da177e4SLinus Torvalds } 841da177e4SLinus Torvalds } 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds snprintf(intf_name, sizeof intf_name, "%s.%04x", 871da177e4SLinus Torvalds ppriv->dev->name, pkey); 881da177e4SLinus Torvalds priv = ipoib_intf_alloc(intf_name); 891da177e4SLinus Torvalds if (!priv) { 901da177e4SLinus Torvalds result = -ENOMEM; 911da177e4SLinus Torvalds goto err; 921da177e4SLinus Torvalds } 931da177e4SLinus Torvalds 94bc7b3a36SShirley Ma priv->max_ib_mtu = ppriv->max_ib_mtu; 95b4132efaSEli Cohen /* MTU will be reset when mcast join happens */ 96b4132efaSEli Cohen priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu); 97b4132efaSEli Cohen priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu; 981da177e4SLinus Torvalds set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); 991da177e4SLinus Torvalds 10083bb63f6SOr Gerlitz result = ipoib_set_dev_features(priv, ppriv->ca); 10183bb63f6SOr Gerlitz if (result) 102edb5abb1SRoland Dreier goto err; 10383bb63f6SOr Gerlitz 1041da177e4SLinus Torvalds priv->pkey = pkey; 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); 1071da177e4SLinus Torvalds priv->dev->broadcast[8] = pkey >> 8; 1081da177e4SLinus Torvalds priv->dev->broadcast[9] = pkey & 0xff; 1091da177e4SLinus Torvalds 1101da177e4SLinus Torvalds result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port); 1111da177e4SLinus Torvalds if (result < 0) { 1121da177e4SLinus Torvalds ipoib_warn(ppriv, "failed to initialize subinterface: " 1131da177e4SLinus Torvalds "device %s, port %d", 1141da177e4SLinus Torvalds ppriv->ca->name, ppriv->port); 115edb5abb1SRoland Dreier goto err; 1161da177e4SLinus Torvalds } 1171da177e4SLinus Torvalds 118cbbe1efaSRoland Dreier result = register_netdevice(priv->dev); 1191da177e4SLinus Torvalds if (result) { 1201da177e4SLinus Torvalds ipoib_warn(priv, "failed to initialize; error %i", result); 1211da177e4SLinus Torvalds goto register_failed; 1221da177e4SLinus Torvalds } 1231da177e4SLinus Torvalds 1241da177e4SLinus Torvalds priv->parent = ppriv->dev; 1251da177e4SLinus Torvalds 1261732b0efSRoland Dreier ipoib_create_debug_files(priv->dev); 1271da177e4SLinus Torvalds 128839fcabaSMichael S. Tsirkin if (ipoib_cm_add_mode_attr(priv->dev)) 129839fcabaSMichael S. Tsirkin goto sysfs_failed; 1301da177e4SLinus Torvalds if (ipoib_add_pkey_attr(priv->dev)) 1311da177e4SLinus Torvalds goto sysfs_failed; 132335a64a5SOr Gerlitz if (ipoib_add_umcast_attr(priv->dev)) 133335a64a5SOr Gerlitz goto sysfs_failed; 1341da177e4SLinus Torvalds 13543cb76d9SGreg Kroah-Hartman if (device_create_file(&priv->dev->dev, &dev_attr_parent)) 1361da177e4SLinus Torvalds goto sysfs_failed; 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds list_add_tail(&priv->list, &ppriv->child_intfs); 1391da177e4SLinus Torvalds 14095ed644fSIngo Molnar mutex_unlock(&ppriv->vlan_mutex); 141cbbe1efaSRoland Dreier rtnl_unlock(); 1421da177e4SLinus Torvalds 1431da177e4SLinus Torvalds return 0; 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds sysfs_failed: 1461732b0efSRoland Dreier ipoib_delete_debug_files(priv->dev); 147cbbe1efaSRoland Dreier unregister_netdevice(priv->dev); 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds register_failed: 1501da177e4SLinus Torvalds ipoib_dev_cleanup(priv->dev); 1511da177e4SLinus Torvalds 1521da177e4SLinus Torvalds err: 15395ed644fSIngo Molnar mutex_unlock(&ppriv->vlan_mutex); 154cbbe1efaSRoland Dreier rtnl_unlock(); 155edb5abb1SRoland Dreier if (priv) 156edb5abb1SRoland Dreier free_netdev(priv->dev); 157edb5abb1SRoland Dreier 1581da177e4SLinus Torvalds return result; 1591da177e4SLinus Torvalds } 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) 1621da177e4SLinus Torvalds { 1631da177e4SLinus Torvalds struct ipoib_dev_priv *ppriv, *priv, *tpriv; 164edb5abb1SRoland Dreier struct net_device *dev = NULL; 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 1671da177e4SLinus Torvalds return -EPERM; 1681da177e4SLinus Torvalds 1691da177e4SLinus Torvalds ppriv = netdev_priv(pdev); 1701da177e4SLinus Torvalds 17126574401SEric W. Biederman if (!rtnl_trylock()) 17226574401SEric W. Biederman return restart_syscall(); 17395ed644fSIngo Molnar mutex_lock(&ppriv->vlan_mutex); 1741da177e4SLinus Torvalds list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { 1751da177e4SLinus Torvalds if (priv->pkey == pkey) { 176cbbe1efaSRoland Dreier unregister_netdevice(priv->dev); 1771da177e4SLinus Torvalds ipoib_dev_cleanup(priv->dev); 1781da177e4SLinus Torvalds list_del(&priv->list); 179edb5abb1SRoland Dreier dev = priv->dev; 1801da177e4SLinus Torvalds break; 1811da177e4SLinus Torvalds } 1821da177e4SLinus Torvalds } 18395ed644fSIngo Molnar mutex_unlock(&ppriv->vlan_mutex); 184cbbe1efaSRoland Dreier rtnl_unlock(); 1851da177e4SLinus Torvalds 186edb5abb1SRoland Dreier if (dev) { 187edb5abb1SRoland Dreier free_netdev(dev); 188edb5abb1SRoland Dreier return 0; 189edb5abb1SRoland Dreier } 190edb5abb1SRoland Dreier 191edb5abb1SRoland Dreier return -ENODEV; 1921da177e4SLinus Torvalds } 193