Differential D3456 Diff 8176 tools/tools/ioat/ioatcontrol.c

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tools/tools/ioat/ioatcontrol.c

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				/*-
				* Copyright (C) 2012 Intel Corporation
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. 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.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*/

				#include <sys/ioctl.h>

				#include <fcntl.h>
				#include <stdio.h>
				#include <stdint.h>
				#include <stdlib.h>
				#include <sysexits.h>
				#include <unistd.h>

				#include "ioat_test.h"

				int
				main(int argc, char **argv)
				{
				struct ioat_test t;
				int fd;

				if (argc < 3) {
				printf("Usage: %s <channel #> <num_loops>\n", argv[0]);
				return (EX_USAGE);
				}

				t.channel_index = atoi(argv[1]);
				if (t.channel_index > 8) {
				printf("Channel number must be between 0 and 7.\n");
				return (EX_USAGE);
				}

				t.num_loops = atoi(argv[2]);

				fd = open("/dev/ioat_test", O_RDWR);
				if (fd < 0) {
				printf("Cannot open /dev/ioat_test\n");
				return (EX_UNAVAILABLE);
				}

				(void)ioctl(fd, IOAT_DMATEST, &t);
				close(fd);

				return (t.status);
				}