path: root/drivers/infiniband/hw/ipath/ipath_sysfs.c

/*
 * Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved.
 * Copyright (c) 2006 PathScale, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/ctype.h>

#include "ipath_kernel.h"
#include "ipath_verbs.h"
#include "ipath_common.h"

/**
 * ipath_parse_ushort - parse an unsigned short value in an arbitrary base
 * @str: the string containing the number
 * @valp: where to put the result
 *
 * returns the number of bytes consumed, or negative value on error
 */
int ipath_parse_ushort(const char *str, unsigned short *valp)
{
	unsigned long val;
	char *end;
	int ret;

	if (!isdigit(str[0])) {
		ret = -EINVAL;
		goto bail;
	}

	val = simple_strtoul(str, &end, 0);

	if (val > 0xffff) {
		ret = -EINVAL;
		goto bail;
	}

	*valp = val;

	ret = end + 1 - str;
	if (ret == 0)
		ret = -EINVAL;

bail:
	return ret;
}

static ssize_t show_version(struct device_driver *dev, char *buf)
{
	/* The string printed here is already newline-terminated. */
	return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version);
}

static ssize_t show_num_units(struct device_driver *dev, char *buf)
{
	return scnprintf(buf, PAGE_SIZE, "%d\n",
			 ipath_count_units(NULL, NULL, NULL));
}

static ssize_t show_status(struct device *dev,
			   struct device_attribute *attr,
			   char *buf)
{
	struct ipath_devdata *dd = dev_get_drvdata(dev);
	ssize_t ret;

	if (!dd->ipath_statusp) {
		ret = -EINVAL;
		goto bail;
	}

	ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
			(unsigned long long) *(dd->ipath_statusp));

bail:
	return ret;
}

static const char *ipath_status_str[] = {
	"Initted",
	"Disabled",
	"Admin_Disabled",
	"", /* This used to be the old "OIB_SMA" status. */
	"", /* This used to be the old "SMA" status. */
	"Present",
	"IB_link_up",
	"IB_configured",
	"NoIBcable",
	"Fatal_Hardware_Error",
	NULL,
};

static