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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | */ |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/module.h> |
| 34 | |
| 35 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <linux/seq_file.h> |
| 37 | |
| 38 | #include <asm/uaccess.h> |
| 39 | |
| 40 | #include "ipoib.h" |
| 41 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 42 | static ssize_t show_parent(struct device *d, struct device_attribute *attr, |
| 43 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 45 | struct net_device *dev = to_net_dev(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | struct ipoib_dev_priv *priv = netdev_priv(dev); |
| 47 | |
| 48 | return sprintf(buf, "%s\n", priv->parent->name); |
| 49 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 50 | static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 52 | int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, |
| 53 | u16 pkey, int type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | int result; |
| 56 | |
Shirley Ma | bc7b3a3 | 2008-04-23 11:55:45 -0700 | [diff] [blame] | 57 | priv->max_ib_mtu = ppriv->max_ib_mtu; |
Eli Cohen | b4132ef | 2008-04-29 13:46:53 -0700 | [diff] [blame] | 58 | /* MTU will be reset when mcast join happens */ |
| 59 | priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu); |
| 60 | priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu; |
Erez Shitrit | 2c15395 | 2015-04-16 16:34:34 +0300 | [diff] [blame] | 61 | priv->parent = ppriv->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); |
| 63 | |
Or Gerlitz | 83bb63f | 2008-10-22 15:49:49 -0700 | [diff] [blame] | 64 | result = ipoib_set_dev_features(priv, ppriv->ca); |
| 65 | if (result) |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 66 | goto err; |
Or Gerlitz | 83bb63f | 2008-10-22 15:49:49 -0700 | [diff] [blame] | 67 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | priv->pkey = pkey; |
| 69 | |
| 70 | memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); |
Mark Bloch | 492a7e6 | 2016-05-18 16:42:43 +0300 | [diff] [blame] | 71 | memcpy(&priv->local_gid, &ppriv->local_gid, sizeof(priv->local_gid)); |
| 72 | set_bit(IPOIB_FLAG_DEV_ADDR_SET, &priv->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | priv->dev->broadcast[8] = pkey >> 8; |
| 74 | priv->dev->broadcast[9] = pkey & 0xff; |
| 75 | |
| 76 | result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port); |
| 77 | if (result < 0) { |
| 78 | ipoib_warn(ppriv, "failed to initialize subinterface: " |
| 79 | "device %s, port %d", |
| 80 | ppriv->ca->name, ppriv->port); |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 81 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Roland Dreier | cbbe1ef | 2009-01-14 21:44:39 -0800 | [diff] [blame] | 84 | result = register_netdevice(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | if (result) { |
| 86 | ipoib_warn(priv, "failed to initialize; error %i", result); |
| 87 | goto register_failed; |
| 88 | } |
| 89 | |
Roland Dreier | 1732b0e | 2005-11-07 10:33:11 -0800 | [diff] [blame] | 90 | ipoib_create_debug_files(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
Or Gerlitz | 862096a | 2012-09-27 12:06:02 +0000 | [diff] [blame] | 92 | /* RTNL childs don't need proprietary sysfs entries */ |
| 93 | if (type == IPOIB_LEGACY_CHILD) { |
| 94 | if (ipoib_cm_add_mode_attr(priv->dev)) |
| 95 | goto sysfs_failed; |
| 96 | if (ipoib_add_pkey_attr(priv->dev)) |
| 97 | goto sysfs_failed; |
| 98 | if (ipoib_add_umcast_attr(priv->dev)) |
| 99 | goto sysfs_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Or Gerlitz | 862096a | 2012-09-27 12:06:02 +0000 | [diff] [blame] | 101 | if (device_create_file(&priv->dev->dev, &dev_attr_parent)) |
| 102 | goto sysfs_failed; |
| 103 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Or Gerlitz | 862096a | 2012-09-27 12:06:02 +0000 | [diff] [blame] | 105 | priv->child_type = type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | list_add_tail(&priv->list, &ppriv->child_intfs); |
| 107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | return 0; |
| 109 | |
| 110 | sysfs_failed: |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 111 | result = -ENOMEM; |
Roland Dreier | 1732b0e | 2005-11-07 10:33:11 -0800 | [diff] [blame] | 112 | ipoib_delete_debug_files(priv->dev); |
Roland Dreier | cbbe1ef | 2009-01-14 21:44:39 -0800 | [diff] [blame] | 113 | unregister_netdevice(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
| 115 | register_failed: |
| 116 | ipoib_dev_cleanup(priv->dev); |
| 117 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | err: |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 119 | return result; |
| 120 | } |
| 121 | |
| 122 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) |
| 123 | { |
| 124 | struct ipoib_dev_priv *ppriv, *priv; |
| 125 | char intf_name[IFNAMSIZ]; |
| 126 | struct ipoib_dev_priv *tpriv; |
| 127 | int result; |
| 128 | |
| 129 | if (!capable(CAP_NET_ADMIN)) |
| 130 | return -EPERM; |
| 131 | |
| 132 | ppriv = netdev_priv(pdev); |
| 133 | |
Erez Shitrit | 198b12f | 2016-06-04 15:15:20 +0300 | [diff] [blame] | 134 | if (test_bit(IPOIB_FLAG_GOING_DOWN, &ppriv->flags)) |
| 135 | return -EPERM; |
| 136 | |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 137 | snprintf(intf_name, sizeof intf_name, "%s.%04x", |
| 138 | ppriv->dev->name, pkey); |
| 139 | priv = ipoib_intf_alloc(intf_name); |
| 140 | if (!priv) |
| 141 | return -ENOMEM; |
| 142 | |
| 143 | if (!rtnl_trylock()) |
| 144 | return restart_syscall(); |
| 145 | |
Erez Shitrit | f47944c | 2013-10-16 17:37:49 +0300 | [diff] [blame] | 146 | down_write(&ppriv->vlan_rwsem); |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 147 | |
| 148 | /* |
| 149 | * First ensure this isn't a duplicate. We check the parent device and |
| 150 | * then all of the legacy child interfaces to make sure the Pkey |
| 151 | * doesn't match. |
| 152 | */ |
| 153 | if (ppriv->pkey == pkey) { |
| 154 | result = -ENOTUNIQ; |
| 155 | goto out; |
| 156 | } |
| 157 | |
| 158 | list_for_each_entry(tpriv, &ppriv->child_intfs, list) { |
| 159 | if (tpriv->pkey == pkey && |
| 160 | tpriv->child_type == IPOIB_LEGACY_CHILD) { |
| 161 | result = -ENOTUNIQ; |
| 162 | goto out; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD); |
| 167 | |
| 168 | out: |
Erez Shitrit | f47944c | 2013-10-16 17:37:49 +0300 | [diff] [blame] | 169 | up_write(&ppriv->vlan_rwsem); |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 170 | |
| 171 | if (result) |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 172 | free_netdev(priv->dev); |
| 173 | |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 174 | rtnl_unlock(); |
| 175 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | return result; |
| 177 | } |
| 178 | |
| 179 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) |
| 180 | { |
| 181 | struct ipoib_dev_priv *ppriv, *priv, *tpriv; |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 182 | struct net_device *dev = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
| 184 | if (!capable(CAP_NET_ADMIN)) |
| 185 | return -EPERM; |
| 186 | |
| 187 | ppriv = netdev_priv(pdev); |
| 188 | |
Erez Shitrit | 198b12f | 2016-06-04 15:15:20 +0300 | [diff] [blame] | 189 | if (test_bit(IPOIB_FLAG_GOING_DOWN, &ppriv->flags)) |
| 190 | return -EPERM; |
| 191 | |
Eric W. Biederman | 2657440 | 2009-05-13 17:01:51 +0000 | [diff] [blame] | 192 | if (!rtnl_trylock()) |
| 193 | return restart_syscall(); |
Erez Shitrit | f47944c | 2013-10-16 17:37:49 +0300 | [diff] [blame] | 194 | |
| 195 | down_write(&ppriv->vlan_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { |
Or Gerlitz | 9baa0b0 | 2012-09-13 05:56:36 +0000 | [diff] [blame] | 197 | if (priv->pkey == pkey && |
| 198 | priv->child_type == IPOIB_LEGACY_CHILD) { |
Roland Dreier | cbbe1ef | 2009-01-14 21:44:39 -0800 | [diff] [blame] | 199 | unregister_netdevice(priv->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | list_del(&priv->list); |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 201 | dev = priv->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | break; |
| 203 | } |
| 204 | } |
Erez Shitrit | f47944c | 2013-10-16 17:37:49 +0300 | [diff] [blame] | 205 | up_write(&ppriv->vlan_rwsem); |
| 206 | |
Roland Dreier | cbbe1ef | 2009-01-14 21:44:39 -0800 | [diff] [blame] | 207 | rtnl_unlock(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
Roland Dreier | edb5abb | 2009-03-31 10:22:32 -0700 | [diff] [blame] | 209 | if (dev) { |
| 210 | free_netdev(dev); |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | } |