2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
32 * $Id: ipoib_vlan.c 1349 2004-12-16 21:09:43Z roland $
35 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/slab.h>
39 #include <linux/seq_file.h>
41 #include <asm/uaccess.h>
45 static ssize_t
show_parent(struct device
*d
, struct device_attribute
*attr
,
48 struct net_device
*dev
= to_net_dev(d
);
49 struct ipoib_dev_priv
*priv
= netdev_priv(dev
);
51 return sprintf(buf
, "%s\n", priv
->parent
->name
);
53 static DEVICE_ATTR(parent
, S_IRUGO
, show_parent
, NULL
);
55 int ipoib_vlan_add(struct net_device
*pdev
, unsigned short pkey
)
57 struct ipoib_dev_priv
*ppriv
, *priv
;
58 char intf_name
[IFNAMSIZ
];
61 if (!capable(CAP_NET_ADMIN
))
64 ppriv
= netdev_priv(pdev
);
66 mutex_lock(&ppriv
->vlan_mutex
);
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.
72 if (ppriv
->pkey
== pkey
) {
77 list_for_each_entry(priv
, &ppriv
->child_intfs
, list
) {
78 if (priv
->pkey
== pkey
) {
84 snprintf(intf_name
, sizeof intf_name
, "%s.%04x",
85 ppriv
->dev
->name
, pkey
);
86 priv
= ipoib_intf_alloc(intf_name
);
92 set_bit(IPOIB_FLAG_SUBINTERFACE
, &priv
->flags
);
96 memcpy(priv
->dev
->dev_addr
, ppriv
->dev
->dev_addr
, INFINIBAND_ALEN
);
97 priv
->dev
->broadcast
[8] = pkey
>> 8;
98 priv
->dev
->broadcast
[9] = pkey
& 0xff;
100 result
= ipoib_dev_init(priv
->dev
, ppriv
->ca
, ppriv
->port
);
102 ipoib_warn(ppriv
, "failed to initialize subinterface: "
103 "device %s, port %d",
104 ppriv
->ca
->name
, ppriv
->port
);
105 goto device_init_failed
;
108 result
= register_netdev(priv
->dev
);
110 ipoib_warn(priv
, "failed to initialize; error %i", result
);
111 goto register_failed
;
114 priv
->parent
= ppriv
->dev
;
116 ipoib_create_debug_files(priv
->dev
);
118 if (ipoib_cm_add_mode_attr(priv
->dev
))
120 if (ipoib_add_pkey_attr(priv
->dev
))
122 if (ipoib_add_umcast_attr(priv
->dev
))
125 if (device_create_file(&priv
->dev
->dev
, &dev_attr_parent
))
128 list_add_tail(&priv
->list
, &ppriv
->child_intfs
);
130 mutex_unlock(&ppriv
->vlan_mutex
);
135 ipoib_delete_debug_files(priv
->dev
);
136 unregister_netdev(priv
->dev
);
139 ipoib_dev_cleanup(priv
->dev
);
142 free_netdev(priv
->dev
);
145 mutex_unlock(&ppriv
->vlan_mutex
);
149 int ipoib_vlan_delete(struct net_device
*pdev
, unsigned short pkey
)
151 struct ipoib_dev_priv
*ppriv
, *priv
, *tpriv
;
154 if (!capable(CAP_NET_ADMIN
))
157 ppriv
= netdev_priv(pdev
);
159 mutex_lock(&ppriv
->vlan_mutex
);
160 list_for_each_entry_safe(priv
, tpriv
, &ppriv
->child_intfs
, list
) {
161 if (priv
->pkey
== pkey
) {
162 unregister_netdev(priv
->dev
);
163 ipoib_dev_cleanup(priv
->dev
);
164 list_del(&priv
->list
);
165 free_netdev(priv
->dev
);
171 mutex_unlock(&ppriv
->vlan_mutex
);