[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/stddef.h>	/* offsetof(), etc. */
#include <linux/errno.h>	/* return codes */
#include <linux/kernel.h>
#include <linux/slab.h>		/* kmalloc(), kfree() */
#include <linux/mm.h>
#include <linux/string.h>	/* inline mem*, str* functions */
#include <linux/init.h>		/* __initfunc et al. */
#include <asm/byteorder.h>	/* htons(), etc. */
#include <asm/uaccess.h>	/* copy_to_user */
#include <asm/io.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 "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(file, &vlan_seq_ops);
}

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

/*
 *	/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.
 */

/*
 *	/proc/net/vlan
 */

static struct proc_dir_entry *proc_vlan_dir;

/*
 *	/proc/net/vlan/config
 */

static struct proc_dir_entry *proc_vlan_conf;

/* 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(void)
{
	if (proc_vlan_conf)
		remove_proc_entry(name_conf, proc_vlan_dir);

	if (proc_vlan_dir)
		proc_net_remove(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 __init vlan_proc_init(void)
{
	proc_vlan_dir = proc_mkdir(name_root, proc_net);
	if (proc_vlan_dir) {
		proc_vlan_conf = create_proc_entry(name_conf,
						   S_IFREG|S_IRUSR|S_IWUSR,
						   proc_vlan_dir);
		if (proc_vlan_conf) {
			proc_vlan_conf->proc_fops = &vlan_fops;
			return 0;
		}
	}
	vlan_proc_cleanup();
	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);

	if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
		printk(KERN_ERR
		       "ERROR:	vlan_proc_add, device -:%s:- is NOT a VLAN\n",
		       vlandev->name);
		return -EINVAL;
	}

	dev_info->dent = create_proc_entry(vlandev->name,
					   S_IFREG|S_IRUSR|S_IWUSR,
					   proc_vlan_dir);
	if (!dev_info->dent)
		return -ENOBUFS;

	dev_info->dent->proc_fops = &vlandev_fops;
	dev_info->dent->data = vlandev;

#ifdef VLAN_DEBUG
	printk(KERN_ERR "vlan_proc_add, device -:%s:- being added.\n",
	       vlandev->name);
#endif
	return 0;
}

/*
 *	Delete directory entry for VLAN device.
 */
int vlan_proc_rem_dev(struct net_device *vlandev)
{
	if (!vlandev) {
		printk(VLAN_ERR "%s: invalid argument: %p\n",
			__FUNCTION__, vlandev);
		return -EINVAL;
	}

	if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
		printk(VLAN_DBG "%s: invalid argument, device: %s is not a VLAN device, priv_flags: 0x%4hX.\n",
			__FUNCTION__, vlandev->name, vlandev->priv_flags);
		return -EINVAL;
	}

#ifdef VLAN_DEBUG
	printk(VLAN_DBG "%s: dev: %p\n", __FUNCTION__, vlandev);
#endif

	/** 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, 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
 */

static inline int is_vlan_dev(struct net_device *dev)
{
	return dev->priv_flags & IFF_802_1Q_VLAN;
}

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

	read_lock(&dev_base_lock);

	if (*pos == 0)
		return SEQ_START_TOKEN;

	for_each_netdev(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;

	++*pos;

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

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

		return dev;
	}

	return NULL;
}

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

static int vlan_seq_show(struct seq_file *seq, void *v)
{
	if (v == SEQ_START_TOKEN) {
		const char *nmtype = NULL;

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

		if (vlan_name_type < ARRAY_SIZE(vlan_name_type_str))
		    nmtype =  vlan_name_type_str[vlan_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;
	static const char fmt[] = "%30s %12lu\n";
	int i;

	if ((vlandev == NULL) || (!(vlandev->priv_flags & IFF_802_1Q_VLAN)))
		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);


	stats = vlan_dev_get_stats(vlandev);

	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, "EGRESSS 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 LT	20	#include <linux/module.h>
	21	#include <linux/stddef.h> /* offsetof(), etc. */
	22	#include <linux/errno.h> /* return codes */
	23	#include <linux/kernel.h>
	24	#include <linux/slab.h> /* kmalloc(), kfree() */
e49332bd	25	#include <linux/mm.h>
1da177e4 LT	26	#include <linux/string.h> /* inline mem, str functions */
	27	#include <linux/init.h> /* __initfunc et al. */
	28	#include <asm/byteorder.h> /* htons(), etc. */
	29	#include <asm/uaccess.h> /* copy_to_user */
	30	#include <asm/io.h>
	31	#include <linux/proc_fs.h>
	32	#include <linux/seq_file.h>
	33	#include <linux/fs.h>
	34	#include <linux/netdevice.h>
	35	#include <linux/if_vlan.h>
	36	#include "vlanproc.h"
	37	#include "vlan.h"
	38
	39	/**** Function Prototypes ***********************************************/
	40
	41	/* Methods for preparing data for reading proc entries */
	42	static int vlan_seq_show(struct seq_file seq, void v);
	43	static void vlan_seq_start(struct seq_file seq, loff_t *pos);
	44	static void vlan_seq_next(struct seq_file seq, void v, loff_t pos);
	45	static void vlan_seq_stop(struct seq_file seq, void );
	46	static int vlandev_seq_show(struct seq_file seq, void v);
	47
	48	/*
	49	* Global Data
	50	*/
	51
	52
	53	/*
122952fc	54	* Names of the proc directory entries
1da177e4 LT	55	*/
	56
	57	static const char name_root[] = "vlan";
	58	static const char name_conf[] = "config";
	59
	60	/*
	61	* Structures for interfacing with the /proc filesystem.
	62	* VLAN creates its own directory /proc/net/vlan with the folowing
	63	* entries:
	64	* config device status/configuration
	65	* <device> entry for each device
	66	*/
	67
	68	/*
122952fc	69	* Generic /proc/net/vlan/<file> file and inode operations
1da177e4 LT	70	*/
1da177e4 LT	71
56b3d975	72	static const struct seq_operations vlan_seq_ops = {
1da177e4 LT	73	.start = vlan_seq_start,
	74	.next = vlan_seq_next,
	75	.stop = vlan_seq_stop,
	76	.show = vlan_seq_show,
	77	};
	78
	79	static int vlan_seq_open(struct inode inode, struct file file)
	80	{
	81	return seq_open(file, &vlan_seq_ops);
	82	}
	83
9a32144e	84	static const struct file_operations vlan_fops = {
1da177e4 LT	85	.owner = THIS_MODULE,
	86	.open = vlan_seq_open,
	87	.read = seq_read,
	88	.llseek = seq_lseek,
	89	.release = seq_release,
	90	};
	91
	92	/*
	93	* /proc/net/vlan/<device> file and inode operations
	94	*/
	95
	96	static int vlandev_seq_open(struct inode inode, struct file file)
	97	{
	98	return single_open(file, vlandev_seq_show, PDE(inode)->data);
	99	}
	100
9a32144e	101	static const struct file_operations vlandev_fops = {
1da177e4 LT	102	.owner = THIS_MODULE,
	103	.open = vlandev_seq_open,
	104	.read = seq_read,
	105	.llseek = seq_lseek,
	106	.release = single_release,
	107	};
	108
	109	/*
	110	* Proc filesystem derectory entries.
	111	*/
	112
	113	/*
122952fc	114	* /proc/net/vlan
1da177e4 LT	115	*/
	116
	117	static struct proc_dir_entry *proc_vlan_dir;
	118
	119	/*
122952fc	120	* /proc/net/vlan/config
1da177e4 LT	121	*/
	122
	123	static struct proc_dir_entry *proc_vlan_conf;
	124
	125	/* Strings */
	126	static const char *vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
	127	[VLAN_NAME_TYPE_RAW_PLUS_VID] = "VLAN_NAME_TYPE_RAW_PLUS_VID",
	128	[VLAN_NAME_TYPE_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
	129	[VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD]= "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
	130	[VLAN_NAME_TYPE_PLUS_VID] = "VLAN_NAME_TYPE_PLUS_VID",
	131	};
	132	/*
	133	* Interface functions
	134	*/
	135
	136	/*
	137	* Clean up /proc/net/vlan entries
	138	*/
	139
	140	void vlan_proc_cleanup(void)
	141	{
	142	if (proc_vlan_conf)
	143	remove_proc_entry(name_conf, proc_vlan_dir);
	144
	145	if (proc_vlan_dir)
	146	proc_net_remove(name_root);
	147
	148	/* Dynamically added entries should be cleaned up as their vlan_device
	149	* is removed, so we should not have to take care of it here...
	150	*/
	151	}
	152
	153	/*
	154	* Create /proc/net/vlan entries
	155	*/
	156
	157	int __init vlan_proc_init(void)
	158	{
	159	proc_vlan_dir = proc_mkdir(name_root, proc_net);
	160	if (proc_vlan_dir) {
	161	proc_vlan_conf = create_proc_entry(name_conf,
	162	S_IFREG\|S_IRUSR\|S_IWUSR,
	163	proc_vlan_dir);
	164	if (proc_vlan_conf) {
	165	proc_vlan_conf->proc_fops = &vlan_fops;
	166	return 0;
	167	}
	168	}
	169	vlan_proc_cleanup();
	170	return -ENOBUFS;
	171	}
	172
	173	/*
	174	* Add directory entry for VLAN device.
	175	*/
	176
	177	int vlan_proc_add_dev (struct net_device *vlandev)
	178	{
	179	struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
	180
	181	if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
	182	printk(KERN_ERR
	183	"ERROR: vlan_proc_add, device -:%s:- is NOT a VLAN\n",
	184	vlandev->name);
185	return -EINVAL;
186	}
187
188	dev_info->dent = create_proc_entry(vlandev->name,
189	S_IFREG\|S_IRUSR\|S_IWUSR,
190	proc_vlan_dir);
191	if (!dev_info->dent)
192	return -ENOBUFS;
193
194	dev_info->dent->proc_fops = &vlandev_fops;
195	dev_info->dent->data = vlandev;
196
197	#ifdef VLAN_DEBUG
198	printk(KERN_ERR "vlan_proc_add, device -:%s:- being added.\n",
199	vlandev->name);
200	#endif
201	return 0;
202	}
203
204	/*
205	* Delete directory entry for VLAN device.
206	*/
207	int vlan_proc_rem_dev(struct net_device *vlandev)
208	{
209	if (!vlandev) {
210	printk(VLAN_ERR "%s: invalid argument: %p\n",
211	__FUNCTION__, vlandev);
212	return -EINVAL;
213	}
214
215	if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
216	printk(VLAN_DBG "%s: invalid argument, device: %s is not a VLAN device, priv_flags: 0x%4hX.\n",
217	__FUNCTION__, vlandev->name, vlandev->priv_flags);
218	return -EINVAL;
219	}
220
221	#ifdef VLAN_DEBUG
222	printk(VLAN_DBG "%s: dev: %p\n", __FUNCTION__, vlandev);
223	#endif
224
225	/** NOTE: This will consume the memory pointed to by dent, it seems. */
226	if (VLAN_DEV_INFO(vlandev)->dent) {
227	remove_proc_entry(VLAN_DEV_INFO(vlandev)->dent->name, proc_vlan_dir);
228	VLAN_DEV_INFO(vlandev)->dent = NULL;
229	}
230
231	return 0;
232	}
233
234	/**** Proc filesystem entry points **************************************/
235
236	/*
237	* The following few functions build the content of /proc/net/vlan/config
238	*/
239
7562f876	240	static inline int is_vlan_dev(struct net_device *dev)
1da177e4	241	{
7562f876	242	return dev->priv_flags & IFF_802_1Q_VLAN;
1da177e4 LT	243	}
1da177e4 LT	244
122952fc	245	/* start read of /proc/net/vlan/config */
1da177e4 LT	246	static void vlan_seq_start(struct seq_file seq, loff_t *pos)
	247	{
	248	struct net_device *dev;
	249	loff_t i = 1;
	250
	251	read_lock(&dev_base_lock);
	252
	253	if (*pos == 0)
	254	return SEQ_START_TOKEN;
122952fc	255
7562f876 PE	256	for_each_netdev(dev) {
	257	if (!is_vlan_dev(dev))
	258	continue;
	259
	260	if (i++ == *pos)
	261	return dev;
	262	}
122952fc	263
7562f876	264	return NULL;
122952fc	265	}
1da177e4 LT	266
	267	static void vlan_seq_next(struct seq_file seq, void v, loff_t pos)
	268	{
7562f876 PE	269	struct net_device *dev;
7562f876 PE	270
1da177e4 LT	271	++*pos;
1da177e4 LT	272
7562f876 PE	273	dev = (struct net_device *)v;
	274	if (v == SEQ_START_TOKEN)
	275	dev = net_device_entry(&dev_base_head);
	276
	277	for_each_netdev_continue(dev) {
	278	if (!is_vlan_dev(dev))
	279	continue;
	280
	281	return dev;
	282	}
	283
	284	return NULL;
1da177e4 LT	285	}
	286
	287	static void vlan_seq_stop(struct seq_file seq, void v)
	288	{
	289	read_unlock(&dev_base_lock);
	290	}
	291
	292	static int vlan_seq_show(struct seq_file seq, void v)
	293	{
	294	if (v == SEQ_START_TOKEN) {
	295	const char *nmtype = NULL;
	296
	297	seq_puts(seq, "VLAN Dev name \| VLAN ID\n");
	298
	299	if (vlan_name_type < ARRAY_SIZE(vlan_name_type_str))
	300	nmtype = vlan_name_type_str[vlan_name_type];
	301
122952fc	302	seq_printf(seq, "Name-Type: %s\n",
1da177e4 LT	303	nmtype ? nmtype : "UNKNOWN" );
	304	} else {
	305	const struct net_device *vlandev = v;
	306	const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
	307
122952fc	308	seq_printf(seq, "%-15s\| %d \| %s\n", vlandev->name,
1da177e4 LT	309	dev_info->vlan_id, dev_info->real_dev->name);
	310	}
	311	return 0;
	312	}
	313
	314	static int vlandev_seq_show(struct seq_file seq, void offset)
	315	{
	316	struct net_device vlandev = (struct net_device ) seq->private;
	317	const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
	318	struct net_device_stats *stats;
	319	static const char fmt[] = "%30s %12lu\n";
	320	int i;
	321
	322	if ((vlandev == NULL) \|\| (!(vlandev->priv_flags & IFF_802_1Q_VLAN)))
	323	return 0;
	324
	325	seq_printf(seq, "%s VID: %d REORDER_HDR: %i dev->priv_flags: %hx\n",
	326	vlandev->name, dev_info->vlan_id,
	327	(int)(dev_info->flags & 1), vlandev->priv_flags);
	328
	329
	330	stats = vlan_dev_get_stats(vlandev);
	331
	332	seq_printf(seq, fmt, "total frames received", stats->rx_packets);
	333	seq_printf(seq, fmt, "total bytes received", stats->rx_bytes);
	334	seq_printf(seq, fmt, "Broadcast/Multicast Rcvd", stats->multicast);
	335	seq_puts(seq, "\n");
	336	seq_printf(seq, fmt, "total frames transmitted", stats->tx_packets);
	337	seq_printf(seq, fmt, "total bytes transmitted", stats->tx_bytes);
122952fc	338	seq_printf(seq, fmt, "total headroom inc",
1da177e4	339	dev_info->cnt_inc_headroom_on_tx);
122952fc	340	seq_printf(seq, fmt, "total encap on xmit",
1da177e4 LT	341	dev_info->cnt_encap_on_xmit);
	342	seq_printf(seq, "Device: %s", dev_info->real_dev->name);
	343	/* now show all PRIORITY mappings relating to this VLAN */
122952fc	344	seq_printf(seq,
734423cf	345	"\nINGRESS priority mappings: 0:%u 1:%u 2:%u 3:%u 4:%u 5:%u 6:%u 7:%u\n",
1da177e4 LT	346	dev_info->ingress_priority_map[0],
	347	dev_info->ingress_priority_map[1],
	348	dev_info->ingress_priority_map[2],
	349	dev_info->ingress_priority_map[3],
	350	dev_info->ingress_priority_map[4],
	351	dev_info->ingress_priority_map[5],
	352	dev_info->ingress_priority_map[6],
	353	dev_info->ingress_priority_map[7]);
	354
	355	seq_printf(seq, "EGRESSS priority Mappings: ");
	356	for (i = 0; i < 16; i++) {
	357	const struct vlan_priority_tci_mapping *mp
	358	= dev_info->egress_priority_map[i];
	359	while (mp) {
734423cf	360	seq_printf(seq, "%u:%hu ",
1da177e4 LT	361	mp->priority, ((mp->vlan_qos >> 13) & 0x7));
	362	mp = mp->next;
	363	}
	364	}
	365	seq_puts(seq, "\n");
	366
	367	return 0;
	368	}