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038659e7dd
mode we're in and to set the power mode.
236 lines
5.3 KiB
C
236 lines
5.3 KiB
C
/*-
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* Copyright (C) 2012-2013 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/ioccom.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "nvmecontrol.h"
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typedef void (*nvme_fn_t)(int argc, char *argv[]);
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static struct nvme_function {
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const char *name;
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nvme_fn_t fn;
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const char *usage;
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} funcs[] = {
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{"devlist", devlist, DEVLIST_USAGE},
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{"identify", identify, IDENTIFY_USAGE},
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{"perftest", perftest, PERFTEST_USAGE},
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{"reset", reset, RESET_USAGE},
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{"logpage", logpage, LOGPAGE_USAGE},
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{"firmware", firmware, FIRMWARE_USAGE},
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{"power", power, POWER_USAGE},
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{NULL, NULL, NULL},
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};
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static void
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usage(void)
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{
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struct nvme_function *f;
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f = funcs;
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fprintf(stderr, "usage:\n");
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while (f->name != NULL) {
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fprintf(stderr, "%s", f->usage);
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f++;
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}
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exit(1);
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}
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static void
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print_bytes(void *data, uint32_t length)
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{
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uint32_t i, j;
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uint8_t *p, *end;
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end = (uint8_t *)data + length;
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for (i = 0; i < length; i++) {
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p = (uint8_t *)data + (i*16);
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printf("%03x: ", i*16);
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for (j = 0; j < 16 && p < end; j++)
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printf("%02x ", *p++);
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if (p >= end)
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break;
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printf("\n");
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}
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printf("\n");
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}
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static void
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print_dwords(void *data, uint32_t length)
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{
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uint32_t *p;
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uint32_t i, j;
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p = (uint32_t *)data;
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length /= sizeof(uint32_t);
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for (i = 0; i < length; i+=8) {
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printf("%03x: ", i*4);
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for (j = 0; j < 8; j++)
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printf("%08x ", p[i+j]);
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printf("\n");
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}
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printf("\n");
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}
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void
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print_hex(void *data, uint32_t length)
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{
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if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
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print_dwords(data, length);
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else
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print_bytes(data, length);
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}
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void
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read_controller_data(int fd, struct nvme_controller_data *cdata)
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{
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struct nvme_pt_command pt;
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_IDENTIFY;
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pt.cmd.cdw10 = 1;
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pt.buf = cdata;
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pt.len = sizeof(*cdata);
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pt.is_read = 1;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "identify request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "identify request returned error");
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}
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void
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read_namespace_data(int fd, int nsid, struct nvme_namespace_data *nsdata)
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{
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struct nvme_pt_command pt;
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_IDENTIFY;
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pt.cmd.nsid = nsid;
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pt.buf = nsdata;
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pt.len = sizeof(*nsdata);
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pt.is_read = 1;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "identify request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "identify request returned error");
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}
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int
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open_dev(const char *str, int *fd, int show_error, int exit_on_error)
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{
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char full_path[64];
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if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) {
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if (show_error)
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warnx("controller/namespace ids must begin with '%s'",
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NVME_CTRLR_PREFIX);
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if (exit_on_error)
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exit(1);
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else
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return (EINVAL);
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}
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snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
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*fd = open(full_path, O_RDWR);
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if (*fd < 0) {
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if (show_error)
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warn("could not open %s", full_path);
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if (exit_on_error)
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exit(1);
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else
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return (errno);
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}
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return (0);
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}
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void
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parse_ns_str(const char *ns_str, char *ctrlr_str, int *nsid)
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{
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char *nsloc;
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/*
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* Pull the namespace id from the string. +2 skips past the "ns" part
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* of the string. Don't search past 10 characters into the string,
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* otherwise we know it is malformed.
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*/
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nsloc = strnstr(ns_str, NVME_NS_PREFIX, 10);
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if (nsloc != NULL)
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*nsid = strtol(nsloc + 2, NULL, 10);
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if (nsloc == NULL || (*nsid == 0 && errno != 0))
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errx(1, "invalid namespace ID '%s'", ns_str);
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/*
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* The controller string will include only the nvmX part of the
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* nvmeXnsY string.
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*/
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snprintf(ctrlr_str, nsloc - ns_str + 1, "%s", ns_str);
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}
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int
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main(int argc, char *argv[])
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{
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struct nvme_function *f;
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if (argc < 2)
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usage();
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f = funcs;
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while (f->name != NULL) {
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if (strcmp(argv[1], f->name) == 0)
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f->fn(argc-1, &argv[1]);
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f++;
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}
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usage();
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return (0);
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}
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