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 * $Id: ipoib_vlan.c 1349 2004-12-16 21:09:43Z roland $ 331da177e4SLinus Torvalds */ 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #include <linux/module.h> 361da177e4SLinus Torvalds 371da177e4SLinus Torvalds #include <linux/init.h> 381da177e4SLinus Torvalds #include <linux/slab.h> 391da177e4SLinus Torvalds #include <linux/seq_file.h> 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds #include <asm/uaccess.h> 421da177e4SLinus Torvalds 431da177e4SLinus Torvalds #include "ipoib.h" 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds static ssize_t show_parent(struct class_device *class_dev, char *buf) 461da177e4SLinus Torvalds { 471da177e4SLinus Torvalds struct net_device *dev = 481da177e4SLinus Torvalds container_of(class_dev, struct net_device, class_dev); 491da177e4SLinus Torvalds struct ipoib_dev_priv *priv = netdev_priv(dev); 501da177e4SLinus Torvalds 511da177e4SLinus Torvalds return sprintf(buf, "%s\n", priv->parent->name); 521da177e4SLinus Torvalds } 531da177e4SLinus Torvalds static CLASS_DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL); 541da177e4SLinus Torvalds 551da177e4SLinus Torvalds int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) 561da177e4SLinus Torvalds { 571da177e4SLinus Torvalds struct ipoib_dev_priv *ppriv, *priv; 581da177e4SLinus Torvalds char intf_name[IFNAMSIZ]; 591da177e4SLinus Torvalds int result; 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 621da177e4SLinus Torvalds return -EPERM; 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds ppriv = netdev_priv(pdev); 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds down(&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; 741da177e4SLinus Torvalds goto err; 751da177e4SLinus Torvalds } 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds list_for_each_entry(priv, &ppriv->child_intfs, list) { 781da177e4SLinus Torvalds if (priv->pkey == pkey) { 791da177e4SLinus Torvalds result = -ENOTUNIQ; 801da177e4SLinus Torvalds goto err; 811da177e4SLinus Torvalds } 821da177e4SLinus Torvalds } 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds snprintf(intf_name, sizeof intf_name, "%s.%04x", 851da177e4SLinus Torvalds ppriv->dev->name, pkey); 861da177e4SLinus Torvalds priv = ipoib_intf_alloc(intf_name); 871da177e4SLinus Torvalds if (!priv) { 881da177e4SLinus Torvalds result = -ENOMEM; 891da177e4SLinus Torvalds goto err; 901da177e4SLinus Torvalds } 911da177e4SLinus Torvalds 921da177e4SLinus Torvalds set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds priv->pkey = pkey; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); 971da177e4SLinus Torvalds priv->dev->broadcast[8] = pkey >> 8; 981da177e4SLinus Torvalds priv->dev->broadcast[9] = pkey & 0xff; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port); 1011da177e4SLinus Torvalds if (result < 0) { 1021da177e4SLinus Torvalds ipoib_warn(ppriv, "failed to initialize subinterface: " 1031da177e4SLinus Torvalds "device %s, port %d", 1041da177e4SLinus Torvalds ppriv->ca->name, ppriv->port); 1051da177e4SLinus Torvalds goto device_init_failed; 1061da177e4SLinus Torvalds } 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds result = register_netdev(priv->dev); 1091da177e4SLinus Torvalds if (result) { 1101da177e4SLinus Torvalds ipoib_warn(priv, "failed to initialize; error %i", result); 1111da177e4SLinus Torvalds goto register_failed; 1121da177e4SLinus Torvalds } 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds priv->parent = ppriv->dev; 1151da177e4SLinus Torvalds 1161732b0efSRoland Dreier ipoib_create_debug_files(priv->dev); 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds if (ipoib_add_pkey_attr(priv->dev)) 1191da177e4SLinus Torvalds goto sysfs_failed; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds if (class_device_create_file(&priv->dev->class_dev, 1221da177e4SLinus Torvalds &class_device_attr_parent)) 1231da177e4SLinus Torvalds goto sysfs_failed; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds list_add_tail(&priv->list, &ppriv->child_intfs); 1261da177e4SLinus Torvalds 1271da177e4SLinus Torvalds up(&ppriv->vlan_mutex); 1281da177e4SLinus Torvalds 1291da177e4SLinus Torvalds return 0; 1301da177e4SLinus Torvalds 1311da177e4SLinus Torvalds sysfs_failed: 1321732b0efSRoland Dreier ipoib_delete_debug_files(priv->dev); 1331da177e4SLinus Torvalds unregister_netdev(priv->dev); 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds register_failed: 1361da177e4SLinus Torvalds ipoib_dev_cleanup(priv->dev); 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds device_init_failed: 1391da177e4SLinus Torvalds free_netdev(priv->dev); 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds err: 1421da177e4SLinus Torvalds up(&ppriv->vlan_mutex); 1431da177e4SLinus Torvalds return result; 1441da177e4SLinus Torvalds } 1451da177e4SLinus Torvalds 1461da177e4SLinus Torvalds int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) 1471da177e4SLinus Torvalds { 1481da177e4SLinus Torvalds struct ipoib_dev_priv *ppriv, *priv, *tpriv; 1491da177e4SLinus Torvalds int ret = -ENOENT; 1501da177e4SLinus Torvalds 1511da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 1521da177e4SLinus Torvalds return -EPERM; 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds ppriv = netdev_priv(pdev); 1551da177e4SLinus Torvalds 1561da177e4SLinus Torvalds down(&ppriv->vlan_mutex); 1571da177e4SLinus Torvalds list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { 1581da177e4SLinus Torvalds if (priv->pkey == pkey) { 1591da177e4SLinus Torvalds unregister_netdev(priv->dev); 1601da177e4SLinus Torvalds ipoib_dev_cleanup(priv->dev); 1611da177e4SLinus Torvalds 1621da177e4SLinus Torvalds list_del(&priv->list); 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds kfree(priv); 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds ret = 0; 1671da177e4SLinus Torvalds break; 1681da177e4SLinus Torvalds } 1691da177e4SLinus Torvalds } 1701da177e4SLinus Torvalds up(&ppriv->vlan_mutex); 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds return ret; 1731da177e4SLinus Torvalds } 174