Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004 Topspin Communications. All rights reserved. |
| 3 | * |
| 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: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 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. |
| 22 | * |
| 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 |
| 30 | * SOFTWARE. |
| 31 | * |
| 32 | * $Id: ipoib_vlan.c 1349 2004-12-16 21:09:43Z roland $ |
| 33 | */ |
| 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/module.h> |
| 36 | |
| 37 | #include <linux/init.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/seq_file.h> |
| 40 | |
| 41 | #include <asm/uaccess.h> |
| 42 | |
| 43 | #include "ipoib.h" |
| 44 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 45 | static ssize_t show_parent(struct device *d, struct device_attribute *attr, |
| 46 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 48 | struct net_device *dev = to_net_dev(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | struct ipoib_dev_priv *priv = netdev_priv(dev); |
| 50 | |
| 51 | return sprintf(buf, "%s\n", priv->parent->name); |
| 52 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 53 | static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) |
| 56 | { |
| 57 | struct ipoib_dev_priv *ppriv, *priv; |
| 58 | char intf_name[IFNAMSIZ]; |
| 59 | int result; |
| 60 | |
| 61 | if (!capable(CAP_NET_ADMIN)) |
| 62 | return -EPERM; |
| 63 | |
| 64 | ppriv = netdev_priv(pdev); |
| 65 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 66 | mutex_lock(&ppriv->vlan_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | /* |
| 69 | * First ensure this isn't a duplicate. We check the parent device and |
| 70 | * then all of the child interfaces to make sure the Pkey doesn't match. |
| 71 | */ |
| 72 | if (ppriv->pkey == pkey) { |
| 73 | result = -ENOTUNIQ; |
| 74 | goto err; |
| 75 | } |
| 76 | |
| 77 | list_for_each_entry(priv, &ppriv->child_intfs, list) { |
| 78 | if (priv->pkey == pkey) { |
| 79 | result = -ENOTUNIQ; |
| 80 | goto err; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | snprintf(intf_name, sizeof intf_name, "%s.%04x", |
| 85 | ppriv->dev->name, pkey); |
| 86 | priv = ipoib_intf_alloc(intf_name); |
| 87 | if (!priv) { |
| 88 | result = -ENOMEM; |
| 89 | goto err; |
| 90 | } |
| 91 | |
Shirley Ma | bc7b3a3 | 2008-04-23 11:55:45 -0700 | [diff] [blame^] | 92 | priv->max_ib_mtu = ppriv->max_ib_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); |
| 94 | |
| 95 | priv->pkey = pkey; |
| 96 | |
| 97 | memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); |
| 98 | priv->dev->broadcast[8] = pkey >> 8; |
| 99 | priv->dev->broadcast[9] = pkey & 0xff; |
| 100 | |
| 101 | result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port); |
| 102 | if (result < 0) { |
| 103 | ipoib_warn(ppriv, "failed to initialize subinterface: " |
| 104 | "device %s, port %d", |
| 105 | ppriv->ca->name, ppriv->port); |
| 106 | goto device_init_failed; |
| 107 | } |
| 108 | |
| 109 | result = register_netdev(priv->dev); |
| 110 | if (result) { |
| 111 | ipoib_warn(priv, "failed to initialize; error %i", result); |
| 112 | goto register_failed; |
| 113 | } |
| 114 | |
| 115 | priv->parent = ppriv->dev; |
| 116 | |
Roland Dreier | 1732b0e | 2005-11-07 10:33:11 -0800 | [diff] [blame] | 117 | ipoib_create_debug_files(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
Michael S. Tsirkin | 839fcab | 2007-02-05 22:12:23 +0200 | [diff] [blame] | 119 | if (ipoib_cm_add_mode_attr(priv->dev)) |
| 120 | goto sysfs_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | if (ipoib_add_pkey_attr(priv->dev)) |
| 122 | goto sysfs_failed; |
Or Gerlitz | 335a64a5a | 2007-10-08 10:13:00 +0200 | [diff] [blame] | 123 | if (ipoib_add_umcast_attr(priv->dev)) |
| 124 | goto sysfs_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 126 | if (device_create_file(&priv->dev->dev, &dev_attr_parent)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | goto sysfs_failed; |
| 128 | |
| 129 | list_add_tail(&priv->list, &ppriv->child_intfs); |
| 130 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 131 | mutex_unlock(&ppriv->vlan_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | return 0; |
| 134 | |
| 135 | sysfs_failed: |
Roland Dreier | 1732b0e | 2005-11-07 10:33:11 -0800 | [diff] [blame] | 136 | ipoib_delete_debug_files(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | unregister_netdev(priv->dev); |
| 138 | |
| 139 | register_failed: |
| 140 | ipoib_dev_cleanup(priv->dev); |
| 141 | |
| 142 | device_init_failed: |
| 143 | free_netdev(priv->dev); |
| 144 | |
| 145 | err: |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 146 | mutex_unlock(&ppriv->vlan_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | return result; |
| 148 | } |
| 149 | |
| 150 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) |
| 151 | { |
| 152 | struct ipoib_dev_priv *ppriv, *priv, *tpriv; |
| 153 | int ret = -ENOENT; |
| 154 | |
| 155 | if (!capable(CAP_NET_ADMIN)) |
| 156 | return -EPERM; |
| 157 | |
| 158 | ppriv = netdev_priv(pdev); |
| 159 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 160 | mutex_lock(&ppriv->vlan_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { |
| 162 | if (priv->pkey == pkey) { |
| 163 | unregister_netdev(priv->dev); |
| 164 | ipoib_dev_cleanup(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | list_del(&priv->list); |
Roland Dreier | 5941d07 | 2006-05-09 22:54:59 -0700 | [diff] [blame] | 166 | free_netdev(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
| 168 | ret = 0; |
| 169 | break; |
| 170 | } |
| 171 | } |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 172 | mutex_unlock(&ppriv->vlan_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
| 174 | return ret; |
| 175 | } |