1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
178 lines
4.4 KiB
C
178 lines
4.4 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* $Id: ipoib_vlan.c 1349 2004-12-16 21:09:43Z roland $
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*/
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/seq_file.h>
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#include <asm/uaccess.h>
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#include "ipoib.h"
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static ssize_t show_parent(struct class_device *class_dev, char *buf)
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{
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struct net_device *dev =
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container_of(class_dev, struct net_device, class_dev);
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struct ipoib_dev_priv *priv = netdev_priv(dev);
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return sprintf(buf, "%s\n", priv->parent->name);
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}
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static CLASS_DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL);
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int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
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{
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struct ipoib_dev_priv *ppriv, *priv;
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char intf_name[IFNAMSIZ];
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int result;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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ppriv = netdev_priv(pdev);
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down(&ppriv->vlan_mutex);
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/*
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* First ensure this isn't a duplicate. We check the parent device and
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* then all of the child interfaces to make sure the Pkey doesn't match.
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*/
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if (ppriv->pkey == pkey) {
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result = -ENOTUNIQ;
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goto err;
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}
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list_for_each_entry(priv, &ppriv->child_intfs, list) {
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if (priv->pkey == pkey) {
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result = -ENOTUNIQ;
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goto err;
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}
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}
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snprintf(intf_name, sizeof intf_name, "%s.%04x",
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ppriv->dev->name, pkey);
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priv = ipoib_intf_alloc(intf_name);
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if (!priv) {
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result = -ENOMEM;
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goto err;
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}
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set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
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priv->pkey = pkey;
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memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN);
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priv->dev->broadcast[8] = pkey >> 8;
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priv->dev->broadcast[9] = pkey & 0xff;
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result = ipoib_dev_init(priv->dev, ppriv->ca, ppriv->port);
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if (result < 0) {
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ipoib_warn(ppriv, "failed to initialize subinterface: "
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"device %s, port %d",
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ppriv->ca->name, ppriv->port);
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goto device_init_failed;
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}
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result = register_netdev(priv->dev);
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if (result) {
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ipoib_warn(priv, "failed to initialize; error %i", result);
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goto register_failed;
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}
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priv->parent = ppriv->dev;
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if (ipoib_create_debug_file(priv->dev))
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goto debug_failed;
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if (ipoib_add_pkey_attr(priv->dev))
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goto sysfs_failed;
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if (class_device_create_file(&priv->dev->class_dev,
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&class_device_attr_parent))
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goto sysfs_failed;
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list_add_tail(&priv->list, &ppriv->child_intfs);
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up(&ppriv->vlan_mutex);
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return 0;
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sysfs_failed:
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ipoib_delete_debug_file(priv->dev);
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debug_failed:
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unregister_netdev(priv->dev);
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register_failed:
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ipoib_dev_cleanup(priv->dev);
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device_init_failed:
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free_netdev(priv->dev);
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err:
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up(&ppriv->vlan_mutex);
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return result;
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}
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int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
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{
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struct ipoib_dev_priv *ppriv, *priv, *tpriv;
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int ret = -ENOENT;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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ppriv = netdev_priv(pdev);
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down(&ppriv->vlan_mutex);
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list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
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if (priv->pkey == pkey) {
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unregister_netdev(priv->dev);
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ipoib_dev_cleanup(priv->dev);
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list_del(&priv->list);
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kfree(priv);
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ret = 0;
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break;
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}
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}
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up(&ppriv->vlan_mutex);
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return ret;
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}
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