[linux.git] / net / 8021q / vlanproc.c

/******************************************************************************
 * vlanproc.c	VLAN Module. /proc filesystem interface.
 *
 *		This module is completely hardware-independent and provides
 *		access to the router using Linux /proc filesystem.
 *
 * Author:	Ben Greear, <[email protected]> coppied from wanproc.c
 *               by: Gene Kozin	<[email protected]>
 *
 * Copyright:	(c) 1998 Ben Greear
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 * ============================================================================
 * Jan 20, 1998        Ben Greear     Initial Version
 *****************************************************************************/

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/fs.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include "vlanproc.h"
#include "vlan.h"

/****** Function Prototypes *************************************************/

/* Methods for preparing data for reading proc entries */
static int vlan_seq_show(struct seq_file *seq, void *v);
static void *vlan_seq_start(struct seq_file *seq, loff_t *pos);
static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos);
static void vlan_seq_stop(struct seq_file *seq, void *);
static int vlandev_seq_show(struct seq_file *seq, void *v);

/*
 *	Global Data
 */


/*
 *	Names of the proc directory entries
 */

static const char name_root[]	 = "vlan";
static const char name_conf[]	 = "config";

/*
 *	Structures for interfacing with the /proc filesystem.
 *	VLAN creates its own directory /proc/net/vlan with the folowing
 *	entries:
 *	config		device status/configuration
 *	<device>	entry for each  device
 */

/*
 *	Generic /proc/net/vlan/<file> file and inode operations
 */

static const struct seq_operations vlan_seq_ops = {
	.start = vlan_seq_start,
	.next = vlan_seq_next,
	.stop = vlan_seq_stop,
	.show = vlan_seq_show,
};

static int vlan_seq_open(struct inode *inode, struct file *file)
{
	return seq_open_net(inode, file, &vlan_seq_ops,
			sizeof(struct seq_net_private));
}

static const struct file_operations vlan_fops = {
	.owner	 = THIS_MODULE,
	.open    = vlan_seq_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = seq_release_net,
};

/*
 *	/proc/net/vlan/<device> file and inode operations
 */

static int vlandev_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, vlandev_seq_show, PDE(inode)->data);
}

static const struct file_operations vlandev_fops = {
	.owner = THIS_MODULE,
	.open    = vlandev_seq_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = single_release,
};

/*
 * Proc filesystem derectory entries.
 */

/* Strings */
static const char *vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
    [VLAN_NAME_TYPE_RAW_PLUS_VID]        = "VLAN_NAME_TYPE_RAW_PLUS_VID",
    [VLAN_NAME_TYPE_PLUS_VID_NO_PAD]	 = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
    [VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
    [VLAN_NAME_TYPE_PLUS_VID]		 = "VLAN_NAME_TYPE_PLUS_VID",
};
/*
 *	Interface functions
 */

/*
 *	Clean up /proc/net/vlan entries
 */

void vlan_proc_cleanup(struct net *net)
{
	struct vlan_net *vn = net_generic(net, vlan_net_id);

	if (vn->proc_vlan_conf)
		remove_proc_entry(name_conf, vn->proc_vlan_dir);

	if (vn->proc_vlan_dir)
		proc_net_remove(net, name_root);

	/* Dynamically added entries should be cleaned up as their vlan_device
	 * is removed, so we should not have to take care of it here...
	 */
}

/*
 *	Create /proc/net/vlan entries
 */

int vlan_proc_init(struct net *net)
{
	struct vlan_net *vn = net_generic(net, vlan_net_id);

	vn->proc_vlan_dir = proc_net_mkdir(net, name_root, net->proc_net);
	if (!vn->proc_vlan_dir)
		goto err;

	vn->proc_vlan_conf = proc_create(name_conf, S_IFREG|S_IRUSR|S_IWUSR,
				     vn->proc_vlan_dir, &vlan_fops);
	if (!vn->proc_vlan_conf)
		goto err;
	return 0;

err:
	pr_err("%s: can't create entry in proc filesystem!\n", __func__);
	vlan_proc_cleanup(net);
	return -ENOBUFS;
}

/*
 *	Add directory entry for VLAN device.
 */

int vlan_proc_add_dev(struct net_device *vlandev)
{
	struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
	struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id);

	dev_info->dent =
		proc_create_data(vlandev->name, S_IFREG|S_IRUSR|S_IWUSR,
				 vn->proc_vlan_dir, &vlandev_fops, vlandev);
	if (!dev_info->dent)
		return -ENOBUFS;
	return 0;
}

/*
 *	Delete directory entry for VLAN device.
 */
int vlan_proc_rem_dev(struct net_device *vlandev)
{
	struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id);

	/** NOTE:  This will consume the memory pointed to by dent, it seems. */
	if (vlan_dev_info(vlandev)->dent) {
		remove_proc_entry(vlan_dev_info(vlandev)->dent->name,
				  vn->proc_vlan_dir);
		vlan_dev_info(vlandev)->dent = NULL;
	}
	return 0;
}

/****** Proc filesystem entry points ****************************************/

/*
 * The following few functions build the content of /proc/net/vlan/config
 */

/* start read of /proc/net/vlan/config */
static void *vlan_seq_start(struct seq_file *seq, loff_t *pos)
	__acquires(dev_base_lock)
{
	struct net_device *dev;
	struct net *net = seq_file_net(seq);
	loff_t i = 1;

	read_lock(&dev_base_lock);

	if (*pos == 0)
		return SEQ_START_TOKEN;

	for_each_netdev(net, dev) {
		if (!is_vlan_dev(dev))
			continue;

		if (i++ == *pos)
			return dev;
	}

	return  NULL;
}

static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
	struct net_device *dev;
	struct net *net = seq_file_net(seq);

	++*pos;

	dev = (struct net_device *)v;
	if (v == SEQ_START_TOKEN)
		dev = net_device_entry(&net->dev_base_head);

	for_each_netdev_continue(net, dev) {
		if (!is_vlan_dev(dev))
			continue;

		return dev;
	}

	return NULL;
}

static void vlan_seq_stop(struct seq_file *seq, void *v)
	__releases(dev_base_lock)
{
	read_unlock(&dev_base_lock);
}

static int vlan_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = seq_file_net(seq);
	struct vlan_net *vn = net_generic(net, vlan_net_id);

	if (v == SEQ_START_TOKEN) {
		const char *nmtype = NULL;

		seq_puts(seq, "VLAN Dev name	 | VLAN ID\n");

		if (vn->name_type < ARRAY_SIZE(vlan_name_type_str))
		    nmtype =  vlan_name_type_str[vn->name_type];

		seq_printf(seq, "Name-Type: %s\n",
			   nmtype ? nmtype :  "UNKNOWN");
	} else {
		const struct net_device *vlandev = v;
		const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);

		seq_printf(seq, "%-15s| %d  | %s\n",  vlandev->name,
			   dev_info->vlan_id,    dev_info->real_dev->name);
	}
	return 0;
}

static int vlandev_seq_show(struct seq_file *seq, void *offset)
{
	struct net_device *vlandev = (struct net_device *) seq->private;
	const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
	struct net_device_stats *stats = &vlandev->stats;
	static const char fmt[] = "%30s %12lu\n";
	int i;

	if (!is_vlan_dev(vlandev))
		return 0;

	seq_printf(seq,
		   "%s  VID: %d	 REORDER_HDR: %i  dev->priv_flags: %hx\n",
		   vlandev->name, dev_info->vlan_id,
		   (int)(dev_info->flags & 1), vlandev->priv_flags);

	seq_printf(seq, fmt, "total frames received", stats->rx_packets);
	seq_printf(seq, fmt, "total bytes received", stats->rx_bytes);
	seq_printf(seq, fmt, "Broadcast/Multicast Rcvd", stats->multicast);
	seq_puts(seq, "\n");
	seq_printf(seq, fmt, "total frames transmitted", stats->tx_packets);
	seq_printf(seq, fmt, "total bytes transmitted", stats->tx_bytes);
	seq_printf(seq, fmt, "total headroom inc",
		   dev_info->cnt_inc_headroom_on_tx);
	seq_printf(seq, fmt, "total encap on xmit",
		   dev_info->cnt_encap_on_xmit);
	seq_printf(seq, "Device: %s", dev_info->real_dev->name);
	/* now show all PRIORITY mappings relating to this VLAN */
	seq_printf(seq, "\nINGRESS priority mappings: "
			"0:%u  1:%u  2:%u  3:%u  4:%u  5:%u  6:%u 7:%u\n",
		   dev_info->ingress_priority_map[0],
		   dev_info->ingress_priority_map[1],
		   dev_info->ingress_priority_map[2],
		   dev_info->ingress_priority_map[3],
		   dev_info->ingress_priority_map[4],
		   dev_info->ingress_priority_map[5],
		   dev_info->ingress_priority_map[6],
		   dev_info->ingress_priority_map[7]);

	seq_printf(seq, " EGRESS priority mappings: ");
	for (i = 0; i < 16; i++) {
		const struct vlan_priority_tci_mapping *mp
			= dev_info->egress_priority_map[i];
		while (mp) {
			seq_printf(seq, "%u:%hu ",
				   mp->priority, ((mp->vlan_qos >> 13) & 0x7));
			mp = mp->next;
		}
	}
	seq_puts(seq, "\n");

	return 0;
}
Commit	Line	Data
1da177e4 LT	1	/******************************************************************************
	2	* vlanproc.c VLAN Module. /proc filesystem interface.
	3	*
	4	* This module is completely hardware-independent and provides
	5	* access to the router using Linux /proc filesystem.
	6	*
	7	* Author: Ben Greear, <[email protected]> coppied from wanproc.c
	8	* by: Gene Kozin <[email protected]>
	9	*
	10	* Copyright: (c) 1998 Ben Greear
	11	*
	12	* This program is free software; you can redistribute it and/or
	13	* modify it under the terms of the GNU General Public License
	14	* as published by the Free Software Foundation; either version
	15	* 2 of the License, or (at your option) any later version.
	16	* ============================================================================
	17	* Jan 20, 1998 Ben Greear Initial Version
	18	*****************************************************************************/
	19
1da177e4	20	#include <linux/module.h>
61362766	21	#include <linux/errno.h>
1da177e4	22	#include <linux/kernel.h>
61362766	23	#include <linux/string.h>
1da177e4 LT	24	#include <linux/proc_fs.h>
	25	#include <linux/seq_file.h>
	26	#include <linux/fs.h>
	27	#include <linux/netdevice.h>
	28	#include <linux/if_vlan.h>
457c4cbc	29	#include <net/net_namespace.h>
a59a8c1c	30	#include <net/netns/generic.h>
1da177e4 LT	31	#include "vlanproc.h"
	32	#include "vlan.h"
	33
	34	/**** Function Prototypes ***********************************************/
	35
	36	/* Methods for preparing data for reading proc entries */
	37	static int vlan_seq_show(struct seq_file seq, void v);
	38	static void vlan_seq_start(struct seq_file seq, loff_t *pos);
	39	static void vlan_seq_next(struct seq_file seq, void v, loff_t pos);
	40	static void vlan_seq_stop(struct seq_file seq, void );
	41	static int vlandev_seq_show(struct seq_file seq, void v);
	42
	43	/*
	44	* Global Data
	45	*/
	46
	47
	48	/*
122952fc	49	* Names of the proc directory entries
1da177e4 LT	50	*/
	51
	52	static const char name_root[] = "vlan";
	53	static const char name_conf[] = "config";
	54
	55	/*
	56	* Structures for interfacing with the /proc filesystem.
	57	* VLAN creates its own directory /proc/net/vlan with the folowing
	58	* entries:
	59	* config device status/configuration
	60	* <device> entry for each device
	61	*/
	62
	63	/*
122952fc	64	* Generic /proc/net/vlan/<file> file and inode operations
1da177e4 LT	65	*/
1da177e4 LT	66
56b3d975	67	static const struct seq_operations vlan_seq_ops = {
1da177e4 LT	68	.start = vlan_seq_start,
	69	.next = vlan_seq_next,
	70	.stop = vlan_seq_stop,
	71	.show = vlan_seq_show,
	72	};
	73
	74	static int vlan_seq_open(struct inode inode, struct file file)
	75	{
80de2d98 PE	76	return seq_open_net(inode, file, &vlan_seq_ops,
80de2d98 PE	77	sizeof(struct seq_net_private));
1da177e4 LT	78	}
1da177e4 LT	79
9a32144e	80	static const struct file_operations vlan_fops = {
1da177e4 LT	81	.owner = THIS_MODULE,
	82	.open = vlan_seq_open,
	83	.read = seq_read,
	84	.llseek = seq_lseek,
80de2d98	85	.release = seq_release_net,
1da177e4 LT	86	};
	87
	88	/*
	89	* /proc/net/vlan/<device> file and inode operations
	90	*/
	91
	92	static int vlandev_seq_open(struct inode inode, struct file file)
	93	{
	94	return single_open(file, vlandev_seq_show, PDE(inode)->data);
	95	}
	96
9a32144e	97	static const struct file_operations vlandev_fops = {
1da177e4 LT	98	.owner = THIS_MODULE,
	99	.open = vlandev_seq_open,
	100	.read = seq_read,
	101	.llseek = seq_lseek,
	102	.release = single_release,
	103	};
	104
	105	/*
	106	* Proc filesystem derectory entries.
	107	*/
	108
1da177e4 LT	109	/* Strings */
1da177e4 LT	110	static const char *vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
2029cc2c PM	111	[VLAN_NAME_TYPE_RAW_PLUS_VID] = "VLAN_NAME_TYPE_RAW_PLUS_VID",
	112	[VLAN_NAME_TYPE_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
	113	[VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
	114	[VLAN_NAME_TYPE_PLUS_VID] = "VLAN_NAME_TYPE_PLUS_VID",
1da177e4 LT	115	};
	116	/*
	117	* Interface functions
	118	*/
	119
	120	/*
	121	* Clean up /proc/net/vlan entries
	122	*/
	123
cd1c7014	124	void vlan_proc_cleanup(struct net *net)
1da177e4	125	{
a59a8c1c	126	struct vlan_net *vn = net_generic(net, vlan_net_id);
cd1c7014	127
a59a8c1c PE	128	if (vn->proc_vlan_conf)
a59a8c1c PE	129	remove_proc_entry(name_conf, vn->proc_vlan_dir);
1da177e4	130
a59a8c1c PE	131	if (vn->proc_vlan_dir)
a59a8c1c PE	132	proc_net_remove(net, name_root);
1da177e4 LT	133
	134	/* Dynamically added entries should be cleaned up as their vlan_device
	135	* is removed, so we should not have to take care of it here...
	136	*/
	137	}
	138
	139	/*
	140	* Create /proc/net/vlan entries
	141	*/
	142
cd1c7014	143	int vlan_proc_init(struct net *net)
1da177e4	144	{
a59a8c1c	145	struct vlan_net *vn = net_generic(net, vlan_net_id);
cd1c7014	146
a59a8c1c PE	147	vn->proc_vlan_dir = proc_net_mkdir(net, name_root, net->proc_net);
a59a8c1c PE	148	if (!vn->proc_vlan_dir)
69ab4b7d PM	149	goto err;
69ab4b7d PM	150
a59a8c1c PE	151	vn->proc_vlan_conf = proc_create(name_conf, S_IFREG\|S_IRUSR\|S_IWUSR,
	152	vn->proc_vlan_dir, &vlan_fops);
	153	if (!vn->proc_vlan_conf)
69ab4b7d	154	goto err;
69ab4b7d PM	155	return 0;
	156
	157	err:
0dc47877	158	pr_err("%s: can't create entry in proc filesystem!\n", __func__);
cd1c7014	159	vlan_proc_cleanup(net);
1da177e4 LT	160	return -ENOBUFS;
	161	}
	162
	163	/*
	164	* Add directory entry for VLAN device.
	165	*/
	166
2029cc2c	167	int vlan_proc_add_dev(struct net_device *vlandev)
1da177e4	168	{
9dfebcc6	169	struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
a59a8c1c	170	struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id);
1da177e4	171
1d3faa39 DL	172	dev_info->dent =
	173	proc_create_data(vlandev->name, S_IFREG\|S_IRUSR\|S_IWUSR,
	174	vn->proc_vlan_dir, &vlandev_fops, vlandev);
1da177e4 LT	175	if (!dev_info->dent)
1da177e4 LT	176	return -ENOBUFS;
1da177e4 LT	177	return 0;
	178	}
	179
	180	/*
	181	* Delete directory entry for VLAN device.
	182	*/
	183	int vlan_proc_rem_dev(struct net_device *vlandev)
	184	{
a59a8c1c PE	185	struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id);
a59a8c1c PE	186
1da177e4	187	/** NOTE: This will consume the memory pointed to by dent, it seems. */
9dfebcc6	188	if (vlan_dev_info(vlandev)->dent) {
2029cc2c	189	remove_proc_entry(vlan_dev_info(vlandev)->dent->name,
a59a8c1c	190	vn->proc_vlan_dir);
9dfebcc6	191	vlan_dev_info(vlandev)->dent = NULL;
1da177e4	192	}
1da177e4 LT	193	return 0;
	194	}
	195
	196	/**** Proc filesystem entry points **************************************/
	197
	198	/*
	199	* The following few functions build the content of /proc/net/vlan/config
	200	*/
	201
122952fc	202	/* start read of /proc/net/vlan/config */
1da177e4	203	static void vlan_seq_start(struct seq_file seq, loff_t *pos)
1402c851	204	__acquires(dev_base_lock)
1da177e4 LT	205	{
1da177e4 LT	206	struct net_device *dev;
80de2d98	207	struct net *net = seq_file_net(seq);
1da177e4 LT	208	loff_t i = 1;
	209
	210	read_lock(&dev_base_lock);
	211
	212	if (*pos == 0)
	213	return SEQ_START_TOKEN;
122952fc	214
80de2d98	215	for_each_netdev(net, dev) {
7562f876 PE	216	if (!is_vlan_dev(dev))
	217	continue;
	218
	219	if (i++ == *pos)
	220	return dev;
	221	}
122952fc	222
7562f876	223	return NULL;
122952fc	224	}
1da177e4 LT	225
	226	static void vlan_seq_next(struct seq_file seq, void v, loff_t pos)
	227	{
7562f876	228	struct net_device *dev;
80de2d98	229	struct net *net = seq_file_net(seq);
7562f876	230
1da177e4 LT	231	++*pos;
1da177e4 LT	232
7562f876 PE	233	dev = (struct net_device *)v;
7562f876 PE	234	if (v == SEQ_START_TOKEN)
80de2d98	235	dev = net_device_entry(&net->dev_base_head);
7562f876	236
80de2d98	237	for_each_netdev_continue(net, dev) {
7562f876 PE	238	if (!is_vlan_dev(dev))
	239	continue;
	240
	241	return dev;
	242	}
	243
	244	return NULL;
1da177e4 LT	245	}
	246
	247	static void vlan_seq_stop(struct seq_file seq, void v)
1402c851	248	__releases(dev_base_lock)
1da177e4 LT	249	{
	250	read_unlock(&dev_base_lock);
	251	}
	252
	253	static int vlan_seq_show(struct seq_file seq, void v)
	254	{
7a17a2f7 PE	255	struct net *net = seq_file_net(seq);
	256	struct vlan_net *vn = net_generic(net, vlan_net_id);
	257
1da177e4 LT	258	if (v == SEQ_START_TOKEN) {
	259	const char *nmtype = NULL;
	260
	261	seq_puts(seq, "VLAN Dev name \| VLAN ID\n");
	262
7a17a2f7 PE	263	if (vn->name_type < ARRAY_SIZE(vlan_name_type_str))
7a17a2f7 PE	264	nmtype = vlan_name_type_str[vn->name_type];
1da177e4	265
122952fc	266	seq_printf(seq, "Name-Type: %s\n",
2029cc2c	267	nmtype ? nmtype : "UNKNOWN");
1da177e4 LT	268	} else {
1da177e4 LT	269	const struct net_device *vlandev = v;
9dfebcc6	270	const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
1da177e4	271
122952fc	272	seq_printf(seq, "%-15s\| %d \| %s\n", vlandev->name,
1da177e4 LT	273	dev_info->vlan_id, dev_info->real_dev->name);
	274	}
	275	return 0;
	276	}
	277
	278	static int vlandev_seq_show(struct seq_file seq, void offset)
	279	{
	280	struct net_device vlandev = (struct net_device ) seq->private;
9dfebcc6	281	const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
7bd38d77	282	struct net_device_stats *stats = &vlandev->stats;
1da177e4 LT	283	static const char fmt[] = "%30s %12lu\n";
	284	int i;
	285
26a25239	286	if (!is_vlan_dev(vlandev))
1da177e4 LT	287	return 0;
1da177e4 LT	288
2029cc2c PM	289	seq_printf(seq,
	290	"%s VID: %d REORDER_HDR: %i dev->priv_flags: %hx\n",
	291	vlandev->name, dev_info->vlan_id,
	292	(int)(dev_info->flags & 1), vlandev->priv_flags);
1da177e4	293
1da177e4 LT	294	seq_printf(seq, fmt, "total frames received", stats->rx_packets);
	295	seq_printf(seq, fmt, "total bytes received", stats->rx_bytes);
	296	seq_printf(seq, fmt, "Broadcast/Multicast Rcvd", stats->multicast);
	297	seq_puts(seq, "\n");
	298	seq_printf(seq, fmt, "total frames transmitted", stats->tx_packets);
	299	seq_printf(seq, fmt, "total bytes transmitted", stats->tx_bytes);
122952fc	300	seq_printf(seq, fmt, "total headroom inc",
1da177e4	301	dev_info->cnt_inc_headroom_on_tx);
122952fc	302	seq_printf(seq, fmt, "total encap on xmit",
1da177e4 LT	303	dev_info->cnt_encap_on_xmit);
	304	seq_printf(seq, "Device: %s", dev_info->real_dev->name);
	305	/* now show all PRIORITY mappings relating to this VLAN */
2029cc2c PM	306	seq_printf(seq, "\nINGRESS priority mappings: "
	307	"0:%u 1:%u 2:%u 3:%u 4:%u 5:%u 6:%u 7:%u\n",
	308	dev_info->ingress_priority_map[0],
	309	dev_info->ingress_priority_map[1],
	310	dev_info->ingress_priority_map[2],
	311	dev_info->ingress_priority_map[3],
	312	dev_info->ingress_priority_map[4],
	313	dev_info->ingress_priority_map[5],
	314	dev_info->ingress_priority_map[6],
	315	dev_info->ingress_priority_map[7]);
1da177e4	316
309f796f	317	seq_printf(seq, " EGRESS priority mappings: ");
1da177e4 LT	318	for (i = 0; i < 16; i++) {
	319	const struct vlan_priority_tci_mapping *mp
	320	= dev_info->egress_priority_map[i];
	321	while (mp) {
734423cf	322	seq_printf(seq, "%u:%hu ",
1da177e4 LT	323	mp->priority, ((mp->vlan_qos >> 13) & 0x7));
	324	mp = mp->next;
	325	}
	326	}
	327	seq_puts(seq, "\n");
	328
	329	return 0;
	330	}