[deliverable/linux.git] / drivers / rapidio / rio-sysfs.c

/*
 * RapidIO sysfs attributes and support
 *
 * Copyright 2005 MontaVista Software, Inc.
 * Matt Porter <mporter@kernel.crashing.org>
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/rio.h>
#include <linux/rio_drv.h>
#include <linux/stat.h>
#include <linux/capability.h>

#include "rio.h"

/* Sysfs support */
#define rio_config_attr(field, format_string)					\
static ssize_t								\
field##_show(struct device *dev, struct device_attribute *attr, char *buf)			\
{									\
	struct rio_dev *rdev = to_rio_dev(dev);				\
									\
	return sprintf(buf, format_string, rdev->field);		\
}									\
static DEVICE_ATTR_RO(field);

rio_config_attr(did, "0x%04x\n");
rio_config_attr(vid, "0x%04x\n");
rio_config_attr(device_rev, "0x%08x\n");
rio_config_attr(asm_did, "0x%04x\n");
rio_config_attr(asm_vid, "0x%04x\n");
rio_config_attr(asm_rev, "0x%04x\n");
rio_config_attr(destid, "0x%04x\n");
rio_config_attr(hopcount, "0x%02x\n");

static ssize_t routes_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct rio_dev *rdev = to_rio_dev(dev);
	char *str = buf;
	int i;

	for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
			i++) {
		if (rdev->rswitch->route_table[i] == RIO_INVALID_ROUTE)
			continue;
		str +=
		    sprintf(str, "%04x %02x\n", i,
			    rdev->rswitch->route_table[i]);
	}

	return (str - buf);
}
static DEVICE_ATTR_RO(routes);

static ssize_t lprev_show(struct device *dev,
			  struct device_attribute *attr, char *buf)
{
	struct rio_dev *rdev = to_rio_dev(dev);

	return sprintf(buf, "%s\n",
			(rdev->prev) ? rio_name(rdev->prev) : "root");
}
static DEVICE_ATTR_RO(lprev);

static ssize_t lnext_show(struct device *dev,
			  struct device_attribute *attr, char *buf)
{
	struct rio_dev *rdev = to_rio_dev(dev);
	char *str = buf;
	int i;

	if (rdev->pef & RIO_PEF_SWITCH) {
		for (i = 0; i < RIO_GET_TOTAL_PORTS(rdev->swpinfo); i++) {
			if (rdev->rswitch->nextdev[i])
				str += sprintf(str, "%s\n",
					rio_name(rdev->rswitch->nextdev[i]));
			else
				str += sprintf(str, "null\n");
		}
	}

	return str - buf;
}
static DEVICE_ATTR_RO(lnext);

static ssize_t modalias_show(struct device *dev,
			     struct device_attribute *attr, char *buf)
{
	struct rio_dev *rdev = to_rio_dev(dev);

	return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n",
		       rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did);
}
static DEVICE_ATTR_RO(modalias);

static struct attribute *rio_dev_attrs[] = {
	&dev_attr_did.attr,
	&dev_attr_vid.attr,
	&dev_attr_device_rev.attr,
	&dev_attr_asm_did.attr,
	&dev_attr_asm_vid.attr,
	&dev_attr_asm_rev.attr,
	&dev_attr_lprev.attr,
	&dev_attr_destid.attr,
	&dev_attr_modalias.attr,
	NULL,
};

static const struct attribute_group rio_dev_group = {
	.attrs = rio_dev_attrs,
};

const struct attribute_group *rio_dev_groups[] = {
	&rio_dev_group,
	NULL,
};

static ssize_t
rio_read_config(struct file *filp, struct kobject *kobj,
		struct bin_attribute *bin_attr,
		char *buf, loff_t off, size_t count)
{
	struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
	unsigned int size = 0x100;
	loff_t init_off = off;
	u8 *data = (u8 *) buf;

	/* Several chips lock up trying to read undefined config space */
	if (capable(CAP_SYS_ADMIN))
		size = RIO_MAINT_SPACE_SZ;

	if (off >= size)
		return 0;
	if (off + count > size) {
		size -= off;
		count = size;
	} else {
		size = count;
	}

	if ((off & 1) && size) {
		u8 val;
		rio_read_config_8(dev, off, &val);
		data[off - init_off] = val;
		off++;
		size--;
	}

	if ((off & 3) && size > 2) {
		u16 val;
		rio_read_config_16(dev, off, &val);
		data[off - init_off] = (val >> 8) & 0xff;
		data[off - init_off + 1] = val & 0xff;
		off += 2;
		size -= 2;
	}

	while (size > 3) {
		u32 val;
		rio_read_config_32(dev, off, &val);
		data[off - init_off] = (val >> 24) & 0xff;
		data[off - init_off + 1] = (val >> 16) & 0xff;
		data[off - init_off + 2] = (val >> 8) & 0xff;
		data[off - init_off + 3] = val & 0xff;
		off += 4;
		size -= 4;
	}

	if (size >= 2) {
		u16 val;
		rio_read_config_16(dev, off, &val);
		data[off - init_off] = (val >> 8) & 0xff;
		data[off - init_off + 1] = val & 0xff;
		off += 2;
		size -= 2;
	}

	if (size > 0) {
		u8 val;
		rio_read_config_8(dev, off, &val);
		data[off - init_off] = val;
		off++;
		--size;
	}

	return count;
}

static ssize_t
rio_write_config(struct file *filp, struct kobject *kobj,
		 struct bin_attribute *bin_attr,
		 char *buf, loff_t off, size_t count)
{
	struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
	unsigned int size = count;
	loff_t init_off = off;
	u8 *data = (u8 *) buf;

	if (off >= RIO_MAINT_SPACE_SZ)
		return 0;
	if (off + count > RIO_MAINT_SPACE_SZ) {
		size = RIO_MAINT_SPACE_SZ - off;
		count = size;
	}

	if ((off & 1) && size) {
		rio_write_config_8(dev, off, data[off - init_off]);
		off++;
		size--;
	}

	if ((off & 3) && (size > 2)) {
		u16 val = data[off - init_off + 1];
		val |= (u16) data[off - init_off] << 8;
		rio_write_config_16(dev, off, val);
		off += 2;
		size -= 2;
	}

	while (size > 3) {
		u32 val = data[off - init_off + 3];
		val |= (u32) data[off - init_off + 2] << 8;
		val |= (u32) data[off - init_off + 1] << 16;
		val |= (u32) data[off - init_off] << 24;
		rio_write_config_32(dev, off, val);
		off += 4;
		size -= 4;
	}

	if (size >= 2) {
		u16 val = data[off - init_off + 1];
		val |= (u16) data[off - init_off] << 8;
		rio_write_config_16(dev, off, val);
		off += 2;
		size -= 2;
	}

	if (size) {
		rio_write_config_8(dev, off, data[off - init_off]);
		off++;
		--size;
	}

	return count;
}

static struct bin_attribute rio_config_attr = {
	.attr = {
		 .name = "config",
		 .mode = S_IRUGO | S_IWUSR,
		 },
	.size = RIO_MAINT_SPACE_SZ,
	.read = rio_read_config,
	.write = rio_write_config,
};

/**
 * rio_create_sysfs_dev_files - create RIO specific sysfs files
 * @rdev: device whose entries should be created
 *
 * Create files when @rdev is added to sysfs.
 */
int rio_create_sysfs_dev_files(struct rio_dev *rdev)
{
	int err = 0;

	err = device_create_bin_file(&rdev->dev, &rio_config_attr);

	if (!err && (rdev->pef & RIO_PEF_SWITCH)) {
		err |= device_create_file(&rdev->dev, &dev_attr_routes);
		err |= device_create_file(&rdev->dev, &dev_attr_lnext);
		err |= device_create_file(&rdev->dev, &dev_attr_hopcount);
	}

	if (err)
		pr_warning("RIO: Failed to create attribute file(s) for %s\n",
			   rio_name(rdev));

	return err;
}

/**
 * rio_remove_sysfs_dev_files - cleanup RIO specific sysfs files
 * @rdev: device whose entries we should free
 *
 * Cleanup when @rdev is removed from sysfs.
 */
void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
{
	device_remove_bin_file(&rdev->dev, &rio_config_attr);
	if (rdev->pef & RIO_PEF_SWITCH) {
		device_remove_file(&rdev->dev, &dev_attr_routes);
		device_remove_file(&rdev->dev, &dev_attr_lnext);
		device_remove_file(&rdev->dev, &dev_attr_hopcount);
	}
}

static ssize_t bus_scan_store(struct bus_type *bus, const char *buf,
				size_t count)
{
	long val;
	int rc;

	if (kstrtol(buf, 0, &val) < 0)
		return -EINVAL;

	if (val == RIO_MPORT_ANY) {
		rc = rio_init_mports();
		goto exit;
	}

	if (val < 0 || val >= RIO_MAX_MPORTS)
		return -EINVAL;

	rc = rio_mport_scan((int)val);
exit:
	if (!rc)
		rc = count;

	return rc;
}
static BUS_ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store);

static struct attribute *rio_bus_attrs[] = {
	&bus_attr_scan.attr,
	NULL,
};

static const struct attribute_group rio_bus_group = {
	.attrs = rio_bus_attrs,
};

const struct attribute_group *rio_bus_groups[] = {
	&rio_bus_group,
	NULL,
};

static ssize_t
port_destid_show(struct device *dev, struct device_attribute *attr,
		 char *buf)
{
	struct rio_mport *mport = to_rio_mport(dev);

	if (mport)
		return sprintf(buf, "0x%04x\n", mport->host_deviceid);
	else
		return -ENODEV;
}
static DEVICE_ATTR_RO(port_destid);

static ssize_t sys_size_show(struct device *dev, struct device_attribute *attr,
			   char *buf)
{
	struct rio_mport *mport = to_rio_mport(dev);

	if (mport)
		return sprintf(buf, "%u\n", mport->sys_size);
	else
		return -ENODEV;
}
static DEVICE_ATTR_RO(sys_size);

static struct attribute *rio_mport_attrs[] = {
	&dev_attr_port_destid.attr,
	&dev_attr_sys_size.attr,
	NULL,
};

static const struct attribute_group rio_mport_group = {
	.attrs = rio_mport_attrs,
};

const struct attribute_group *rio_mport_groups[] = {
	&rio_mport_group,
	NULL,
};
Commit	Line	Data
394b701c MP	1	/*
	2	* RapidIO sysfs attributes and support
	3	*
	4	* Copyright 2005 MontaVista Software, Inc.
	5	* Matt Porter <mporter@kernel.crashing.org>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version.
	11	*/
	12
394b701c MP	13	#include <linux/kernel.h>
	14	#include <linux/rio.h>
	15	#include <linux/rio_drv.h>
	16	#include <linux/stat.h>
388b78ad	17	#include <linux/capability.h>
394b701c MP	18
	19	#include "rio.h"
	20
	21	/* Sysfs support */
	22	#define rio_config_attr(field, format_string) \
	23	static ssize_t \
6978bbc0	24	field##_show(struct device dev, struct device_attribute attr, char *buf) \
394b701c MP	25	{ \
	26	struct rio_dev *rdev = to_rio_dev(dev); \
	27	\
	28	return sprintf(buf, format_string, rdev->field); \
	29	} \
6d39c80b	30	static DEVICE_ATTR_RO(field);
394b701c MP	31
	32	rio_config_attr(did, "0x%04x\n");
	33	rio_config_attr(vid, "0x%04x\n");
	34	rio_config_attr(device_rev, "0x%08x\n");
	35	rio_config_attr(asm_did, "0x%04x\n");
	36	rio_config_attr(asm_vid, "0x%04x\n");
	37	rio_config_attr(asm_rev, "0x%04x\n");
cd8b974f AB	38	rio_config_attr(destid, "0x%04x\n");
cd8b974f AB	39	rio_config_attr(hopcount, "0x%02x\n");
394b701c	40
6978bbc0	41	static ssize_t routes_show(struct device dev, struct device_attribute attr, char *buf)
394b701c MP	42	{
	43	struct rio_dev *rdev = to_rio_dev(dev);
	44	char *str = buf;
	45	int i;
	46
e0423236 ZW	47	for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
e0423236 ZW	48	i++) {
394b701c MP	49	if (rdev->rswitch->route_table[i] == RIO_INVALID_ROUTE)
	50	continue;
	51	str +=
	52	sprintf(str, "%04x %02x\n", i,
	53	rdev->rswitch->route_table[i]);
	54	}
	55
394b701c MP	56	return (str - buf);
394b701c MP	57	}
6d39c80b	58	static DEVICE_ATTR_RO(routes);
394b701c	59
cd8b974f AB	60	static ssize_t lprev_show(struct device *dev,
	61	struct device_attribute attr, char buf)
	62	{
	63	struct rio_dev *rdev = to_rio_dev(dev);
	64
	65	return sprintf(buf, "%s\n",
	66	(rdev->prev) ? rio_name(rdev->prev) : "root");
	67	}
6d39c80b	68	static DEVICE_ATTR_RO(lprev);
cd8b974f AB	69
	70	static ssize_t lnext_show(struct device *dev,
	71	struct device_attribute attr, char buf)
	72	{
	73	struct rio_dev *rdev = to_rio_dev(dev);
	74	char *str = buf;
	75	int i;
	76
	77	if (rdev->pef & RIO_PEF_SWITCH) {
	78	for (i = 0; i < RIO_GET_TOTAL_PORTS(rdev->swpinfo); i++) {
	79	if (rdev->rswitch->nextdev[i])
	80	str += sprintf(str, "%s\n",
	81	rio_name(rdev->rswitch->nextdev[i]));
	82	else
	83	str += sprintf(str, "null\n");
	84	}
	85	}
	86
	87	return str - buf;
	88	}
6d39c80b	89	static DEVICE_ATTR_RO(lnext);
cd8b974f	90
3bdbb62f AB	91	static ssize_t modalias_show(struct device *dev,
	92	struct device_attribute attr, char buf)
	93	{
	94	struct rio_dev *rdev = to_rio_dev(dev);
	95
	96	return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n",
	97	rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did);
	98	}
6d39c80b GKH	99	static DEVICE_ATTR_RO(modalias);
	100
	101	static struct attribute *rio_dev_attrs[] = {
	102	&dev_attr_did.attr,
	103	&dev_attr_vid.attr,
	104	&dev_attr_device_rev.attr,
	105	&dev_attr_asm_did.attr,
	106	&dev_attr_asm_vid.attr,
	107	&dev_attr_asm_rev.attr,
	108	&dev_attr_lprev.attr,
	109	&dev_attr_destid.attr,
	110	&dev_attr_modalias.attr,
	111	NULL,
	112	};
3bdbb62f	113
6d39c80b GKH	114	static const struct attribute_group rio_dev_group = {
6d39c80b GKH	115	.attrs = rio_dev_attrs,
394b701c MP	116	};
394b701c MP	117
6d39c80b GKH	118	const struct attribute_group *rio_dev_groups[] = {
	119	&rio_dev_group,
	120	NULL,
	121	};
ac38d723	122
394b701c	123	static ssize_t
2c3c8bea CW	124	rio_read_config(struct file filp, struct kobject kobj,
2c3c8bea CW	125	struct bin_attribute *bin_attr,
91a69029	126	char *buf, loff_t off, size_t count)
394b701c	127	{
a253f1ee	128	struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
394b701c MP	129	unsigned int size = 0x100;
	130	loff_t init_off = off;
	131	u8 data = (u8 ) buf;
	132
	133	/* Several chips lock up trying to read undefined config space */
	134	if (capable(CAP_SYS_ADMIN))
fe41947e	135	size = RIO_MAINT_SPACE_SZ;
394b701c	136
fe41947e	137	if (off >= size)
394b701c MP	138	return 0;
	139	if (off + count > size) {
	140	size -= off;
	141	count = size;
	142	} else {
	143	size = count;
	144	}
	145
	146	if ((off & 1) && size) {
	147	u8 val;
	148	rio_read_config_8(dev, off, &val);
	149	data[off - init_off] = val;
	150	off++;
	151	size--;
	152	}
	153
	154	if ((off & 3) && size > 2) {
	155	u16 val;
	156	rio_read_config_16(dev, off, &val);
	157	data[off - init_off] = (val >> 8) & 0xff;
	158	data[off - init_off + 1] = val & 0xff;
	159	off += 2;
	160	size -= 2;
	161	}
	162
	163	while (size > 3) {
	164	u32 val;
	165	rio_read_config_32(dev, off, &val);
	166	data[off - init_off] = (val >> 24) & 0xff;
	167	data[off - init_off + 1] = (val >> 16) & 0xff;
	168	data[off - init_off + 2] = (val >> 8) & 0xff;
	169	data[off - init_off + 3] = val & 0xff;
	170	off += 4;
	171	size -= 4;
	172	}
	173
	174	if (size >= 2) {
	175	u16 val;
	176	rio_read_config_16(dev, off, &val);
	177	data[off - init_off] = (val >> 8) & 0xff;
	178	data[off - init_off + 1] = val & 0xff;
	179	off += 2;
	180	size -= 2;
	181	}
	182
	183	if (size > 0) {
	184	u8 val;
	185	rio_read_config_8(dev, off, &val);
	186	data[off - init_off] = val;
	187	off++;
	188	--size;
	189	}
	190
	191	return count;
	192	}
	193
	194	static ssize_t
2c3c8bea CW	195	rio_write_config(struct file filp, struct kobject kobj,
2c3c8bea CW	196	struct bin_attribute *bin_attr,
91a69029	197	char *buf, loff_t off, size_t count)
394b701c	198	{
a253f1ee	199	struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
394b701c MP	200	unsigned int size = count;
	201	loff_t init_off = off;
	202	u8 data = (u8 ) buf;
	203
fe41947e	204	if (off >= RIO_MAINT_SPACE_SZ)
394b701c	205	return 0;
fe41947e AB	206	if (off + count > RIO_MAINT_SPACE_SZ) {
fe41947e AB	207	size = RIO_MAINT_SPACE_SZ - off;
394b701c MP	208	count = size;
	209	}
	210
	211	if ((off & 1) && size) {
	212	rio_write_config_8(dev, off, data[off - init_off]);
	213	off++;
	214	size--;
	215	}
	216
	217	if ((off & 3) && (size > 2)) {
	218	u16 val = data[off - init_off + 1];
	219	val \|= (u16) data[off - init_off] << 8;
	220	rio_write_config_16(dev, off, val);
	221	off += 2;
	222	size -= 2;
	223	}
	224
	225	while (size > 3) {
	226	u32 val = data[off - init_off + 3];
	227	val \|= (u32) data[off - init_off + 2] << 8;
	228	val \|= (u32) data[off - init_off + 1] << 16;
	229	val \|= (u32) data[off - init_off] << 24;
	230	rio_write_config_32(dev, off, val);
	231	off += 4;
	232	size -= 4;
	233	}
	234
	235	if (size >= 2) {
	236	u16 val = data[off - init_off + 1];
	237	val \|= (u16) data[off - init_off] << 8;
	238	rio_write_config_16(dev, off, val);
	239	off += 2;
	240	size -= 2;
	241	}
	242
	243	if (size) {
	244	rio_write_config_8(dev, off, data[off - init_off]);
	245	off++;
	246	--size;
	247	}
	248
	249	return count;
	250	}
	251
	252	static struct bin_attribute rio_config_attr = {
	253	.attr = {
	254	.name = "config",
	255	.mode = S_IRUGO \| S_IWUSR,
394b701c	256	},
fe41947e	257	.size = RIO_MAINT_SPACE_SZ,
394b701c MP	258	.read = rio_read_config,
	259	.write = rio_write_config,
	260	};
	261
	262	/**
	263	* rio_create_sysfs_dev_files - create RIO specific sysfs files
	264	* @rdev: device whose entries should be created
	265	*
	266	* Create files when @rdev is added to sysfs.
	267	*/
	268	int rio_create_sysfs_dev_files(struct rio_dev *rdev)
	269	{
5f28c520	270	int err = 0;
394b701c	271
ac38d723 AB	272	err = device_create_bin_file(&rdev->dev, &rio_config_attr);
ac38d723 AB	273
ded05782	274	if (!err && (rdev->pef & RIO_PEF_SWITCH)) {
cd8b974f AB	275	err \|= device_create_file(&rdev->dev, &dev_attr_routes);
	276	err \|= device_create_file(&rdev->dev, &dev_attr_lnext);
	277	err \|= device_create_file(&rdev->dev, &dev_attr_hopcount);
ac38d723 AB	278	}
	279
	280	if (err)
	281	pr_warning("RIO: Failed to create attribute file(s) for %s\n",
	282	rio_name(rdev));
5f28c520 YL	283
5f28c520 YL	284	return err;
394b701c MP	285	}
	286
	287	/**
	288	* rio_remove_sysfs_dev_files - cleanup RIO specific sysfs files
	289	* @rdev: device whose entries we should free
	290	*
	291	* Cleanup when @rdev is removed from sysfs.
	292	*/
	293	void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
	294	{
ac38d723	295	device_remove_bin_file(&rdev->dev, &rio_config_attr);
ded05782	296	if (rdev->pef & RIO_PEF_SWITCH) {
ac38d723	297	device_remove_file(&rdev->dev, &dev_attr_routes);
cd8b974f AB	298	device_remove_file(&rdev->dev, &dev_attr_lnext);
cd8b974f AB	299	device_remove_file(&rdev->dev, &dev_attr_hopcount);
ac38d723	300	}
394b701c	301	}
bc8fcfea AB	302
	303	static ssize_t bus_scan_store(struct bus_type bus, const char buf,
	304	size_t count)
	305	{
	306	long val;
bc8fcfea AB	307	int rc;
	308
	309	if (kstrtol(buf, 0, &val) < 0)
	310	return -EINVAL;
	311
	312	if (val == RIO_MPORT_ANY) {
	313	rc = rio_init_mports();
	314	goto exit;
	315	}
	316
	317	if (val < 0 \|\| val >= RIO_MAX_MPORTS)
	318	return -EINVAL;
	319
9edbc30b	320	rc = rio_mport_scan((int)val);
bc8fcfea AB	321	exit:
	322	if (!rc)
	323	rc = count;
	324
	325	return rc;
	326	}
ed1d2da2	327	static BUS_ATTR(scan, (S_IWUSR\|S_IWGRP), NULL, bus_scan_store);
bc8fcfea	328
ed1d2da2 GKH	329	static struct attribute *rio_bus_attrs[] = {
	330	&bus_attr_scan.attr,
	331	NULL,
	332	};
	333
	334	static const struct attribute_group rio_bus_group = {
	335	.attrs = rio_bus_attrs,
	336	};
	337
	338	const struct attribute_group *rio_bus_groups[] = {
	339	&rio_bus_group,
	340	NULL,
bc8fcfea	341	};
2aaf308b AB	342
	343	static ssize_t
	344	port_destid_show(struct device dev, struct device_attribute attr,
	345	char *buf)
	346	{
	347	struct rio_mport *mport = to_rio_mport(dev);
	348
	349	if (mport)
	350	return sprintf(buf, "0x%04x\n", mport->host_deviceid);
	351	else
	352	return -ENODEV;
	353	}
	354	static DEVICE_ATTR_RO(port_destid);
	355
	356	static ssize_t sys_size_show(struct device dev, struct device_attribute attr,
	357	char *buf)
	358	{
	359	struct rio_mport *mport = to_rio_mport(dev);
	360
	361	if (mport)
	362	return sprintf(buf, "%u\n", mport->sys_size);
	363	else
	364	return -ENODEV;
	365	}
	366	static DEVICE_ATTR_RO(sys_size);
	367
	368	static struct attribute *rio_mport_attrs[] = {
	369	&dev_attr_port_destid.attr,
	370	&dev_attr_sys_size.attr,
	371	NULL,
	372	};
	373
	374	static const struct attribute_group rio_mport_group = {
	375	.attrs = rio_mport_attrs,
	376	};
	377
	378	const struct attribute_group *rio_mport_groups[] = {
	379	&rio_mport_group,
	380	NULL,
	381	};