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NetBSD/sbin/scsictl/scsictl.c

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/* $NetBSD: scsictl.c,v 1.28 2005/06/02 00:13:10 lukem Exp $ */
/*-
* Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* scsictl(8) - a program to manipulate SCSI devices and busses.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: scsictl.c,v 1.28 2005/06/02 00:13:10 lukem Exp $");
#endif
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/scsiio.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include <dev/scsipi/scsi_spc.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsi_disk.h>
#include <dev/scsipi/scsipiconf.h>
#include "extern.h"
struct command {
const char *cmd_name;
const char *arg_names;
void (*cmd_func)(int, char *[]);
};
void usage(void);
int fd; /* file descriptor for device */
const char *dvname; /* device name */
char dvname_store[MAXPATHLEN]; /* for opendisk(3) */
const char *cmdname; /* command user issued */
const char *argnames; /* helpstring: expected arguments */
struct scsi_addr dvaddr; /* SCSI device's address */
void device_defects(int, char *[]);
void device_format(int, char *[]);
void device_identify(int, char *[]);
void device_reassign(int, char *[]);
void device_release(int, char *[]);
void device_reserve(int, char *[]);
void device_reset(int, char *[]);
void device_debug(int, char *[]);
void device_prevent(int, char *[]);
void device_allow(int, char *[]);
void device_start(int, char *[]);
void device_stop(int, char *[]);
void device_tur(int, char *[]);
void device_getcache(int, char *[]);
void device_setcache(int, char *[]);
void device_flushcache(int, char *[]);
struct command device_commands[] = {
{ "defects", "[primary] [grown] [block|byte|physical]",
device_defects },
{ "format", "[blocksize [immediate]]", device_format },
{ "identify", "", device_identify },
{ "reassign", "blkno [blkno [...]]", device_reassign },
{ "release", "", device_release },
{ "reserve", "", device_reserve },
{ "reset", "", device_reset },
{ "debug", "level", device_debug },
{ "prevent", "", device_prevent },
{ "allow", "", device_allow },
{ "start", "", device_start },
{ "stop", "", device_stop },
{ "tur", "", device_tur },
{ "getcache", "", device_getcache },
{ "setcache", "none|r|w|rw [save]", device_setcache },
{ "flushcache", "", device_flushcache },
{ NULL, NULL, NULL },
};
void bus_reset(int, char *[]);
void bus_scan(int, char *[]);
void bus_detach(int, char *[]);
struct command bus_commands[] = {
{ "reset", "", bus_reset },
{ "scan", "target lun", bus_scan },
{ "detach", "target lun", bus_detach },
{ NULL, NULL, NULL },
};
int
main(int argc, char *argv[])
{
struct command *commands;
int i;
/* Must have at least: device command */
if (argc < 3)
usage();
/* Skip program name, get and skip device name and command. */
dvname = argv[1];
cmdname = argv[2];
argv += 3;
argc -= 3;
/*
* Open the device and determine if it's a scsibus or an actual
* device. Devices respond to the SCIOCIDENTIFY ioctl.
*/
fd = opendisk(dvname, O_RDWR, dvname_store, sizeof(dvname_store), 0);
if (fd == -1) {
if (errno == ENOENT) {
/*
* Device doesn't exist. Probably trying to open
* a device which doesn't use disk semantics for
* device name. Try again, specifying "cooked",
* which leaves off the "r" in front of the device's
* name.
*/
fd = opendisk(dvname, O_RDWR, dvname_store,
sizeof(dvname_store), 1);
if (fd == -1)
err(1, "%s", dvname);
} else
err(1, "%s", dvname);
}
/*
* Point the dvname at the actual device name that opendisk() opened.
*/
dvname = dvname_store;
if (ioctl(fd, SCIOCIDENTIFY, &dvaddr) < 0)
commands = bus_commands;
else
commands = device_commands;
/* Look up and call the command. */
for (i = 0; commands[i].cmd_name != NULL; i++)
if (strcmp(cmdname, commands[i].cmd_name) == 0)
break;
if (commands[i].cmd_name == NULL)
errx(1, "unknown %s command: %s",
commands == bus_commands ? "bus" : "device", cmdname);
argnames = commands[i].arg_names;
(*commands[i].cmd_func)(argc, argv);
exit(0);
}
void
usage(void)
{
int i;
fprintf(stderr, "usage: %s device command [arg [...]]\n",
getprogname());
fprintf(stderr, " Commands pertaining to scsi devices:\n");
for (i=0; device_commands[i].cmd_name != NULL; i++)
fprintf(stderr, "\t%s %s\n", device_commands[i].cmd_name,
device_commands[i].arg_names);
fprintf(stderr, " Commands pertaining to scsi busses:\n");
for (i=0; bus_commands[i].cmd_name != NULL; i++)
fprintf(stderr, "\t%s %s\n", bus_commands[i].cmd_name,
bus_commands[i].arg_names);
fprintf(stderr, " Use `any' or `all' to wildcard target or lun\n");
exit(1);
}
/*
* DEVICE COMMANDS
*/
/*
* device_read_defect:
*
* Read primary and/or growth defect list in physical or block
* format from a direct access device.
*
* XXX Does not handle very large defect lists. Needs SCSI3 12
* byte READ DEFECT DATA command.
*/
void print_bf_dd(union scsi_defect_descriptor *);
void print_bfif_dd(union scsi_defect_descriptor *);
void print_psf_dd(union scsi_defect_descriptor *);
void
device_defects(int argc, char *argv[])
{
struct scsi_read_defect_data cmd;
struct scsi_read_defect_data_data *data;
size_t dlen;
int i, dlfmt = -1;
int defects;
char msg[256];
void (*pfunc)(union scsi_defect_descriptor *);
#define RDD_P_G_MASK 0x18
#define RDD_DLF_MASK 0x7
dlen = USHRT_MAX; /* XXX - this may not be enough room
* for all of the defects.
*/
data = malloc(dlen);
if (data == NULL)
errx(1, "unable to allocate defect list");
memset(data, 0, dlen);
memset(&cmd, 0, sizeof(cmd));
defects = 0;
pfunc = NULL;
/* determine which defect list(s) to read. */
for (i = 0; i < argc; i++) {
if (strncmp("primary", argv[i], 7) == 0) {
cmd.flags |= RDD_PRIMARY;
continue;
}
if (strncmp("grown", argv[i], 5) == 0) {
cmd.flags |= RDD_GROWN;
continue;
}
break;
}
/* no defect list sepecified, assume both. */
if ((cmd.flags & (RDD_PRIMARY|RDD_GROWN)) == 0)
cmd.flags |= (RDD_PRIMARY|RDD_GROWN);
/* list format option. */
if (i < argc) {
if (strncmp("block", argv[i], 5) == 0) {
cmd.flags |= RDD_BF;
dlfmt = RDD_BF;
}
else if (strncmp("byte", argv[i], 4) == 0) {
cmd.flags |= RDD_BFIF;
dlfmt = RDD_BFIF;
}
else if (strncmp("physical", argv[i], 4) == 0) {
cmd.flags |= RDD_PSF;
dlfmt = RDD_PSF;
}
else {
usage();
}
}
/*
* no list format specified; since block format not
* recommended use physical sector format as default.
*/
if (dlfmt < 0) {
cmd.flags |= RDD_PSF;
dlfmt = RDD_PSF;
}
cmd.opcode = SCSI_READ_DEFECT_DATA;
_lto2b(dlen, &cmd.length[0]);
scsi_command(fd, &cmd, sizeof(cmd), data, dlen, 30000, SCCMD_READ);
msg[0] = '\0';
/* is the defect list in the format asked for? */
if ((data->flags & RDD_DLF_MASK) != dlfmt) {
strcpy(msg, "\n\tnotice:"
"requested defect list format not supported by device\n\n");
dlfmt = (data->flags & RDD_DLF_MASK);
}
if (data->flags & RDD_PRIMARY)
strcat(msg, "primary");
if (data->flags & RDD_GROWN) {
if (data->flags & RDD_PRIMARY)
strcat(msg, " and ");
strcat(msg, "grown");
}
strcat(msg, " defects");
if ((data->flags & RDD_P_G_MASK) == 0)
strcat(msg, ": none reported\n");
printf("%s: scsibus%d target %d lun %d %s",
dvname, dvaddr.addr.scsi.scbus, dvaddr.addr.scsi.target,
dvaddr.addr.scsi.lun, msg);
/* device did not return either defect list. */
if ((data->flags & RDD_P_G_MASK) == 0)
return;
switch (dlfmt) {
case RDD_BF:
defects = _2btol(data->length) /
sizeof(struct scsi_defect_descriptor_bf);
pfunc = print_bf_dd;
strcpy(msg, "block address\n"
"-------------\n");
break;
case RDD_BFIF:
defects = _2btol(data->length) /
sizeof(struct scsi_defect_descriptor_bfif);
pfunc = print_bfif_dd;
strcpy(msg, " bytes from\n"
"cylinder head index\n"
"-------- ---- ----------\n");
break;
case RDD_PSF:
defects = _2btol(data->length) /
sizeof(struct scsi_defect_descriptor_psf);
pfunc = print_psf_dd;
strcpy(msg, "cylinder head sector\n"
"-------- ---- ----------\n");
break;
}
/* device did not return any defects. */
if (defects == 0) {
printf(": none\n");
return;
}
printf(": %d\n", defects);
/* print heading. */
printf("%s", msg);
/* print defect list. */
for (i = 0 ; i < defects; i++) {
pfunc(&data->defect_descriptor[i]);
}
free(data);
return;
}
/*
* print_bf_dd:
*
* Print a block format defect descriptor.
*/
void
print_bf_dd(union scsi_defect_descriptor *dd)
{
u_int32_t block;
block = _4btol(dd->bf.block_address);
printf("%13u\n", block);
}
#define DEFECTIVE_TRACK 0xffffffff
/*
* print_bfif_dd:
*
* Print a bytes from index format defect descriptor.
*/
void
print_bfif_dd(union scsi_defect_descriptor *dd)
{
u_int32_t cylinder;
u_int32_t head;
u_int32_t bytes_from_index;
cylinder = _3btol(dd->bfif.cylinder);
head = dd->bfif.head;
bytes_from_index = _4btol(dd->bfif.bytes_from_index);
printf("%8u %4u ", cylinder, head);
if (bytes_from_index == DEFECTIVE_TRACK)
printf("entire track defective\n");
else
printf("%10u\n", bytes_from_index);
}
/*
* print_psf_dd:
*
* Print a physical sector format defect descriptor.
*/
void
print_psf_dd(union scsi_defect_descriptor *dd)
{
u_int32_t cylinder;
u_int32_t head;
u_int32_t sector;
cylinder = _3btol(dd->psf.cylinder);
head = dd->psf.head;
sector = _4btol(dd->psf.sector);
printf("%8u %4u ", cylinder, head);
if (sector == DEFECTIVE_TRACK)
printf("entire track defective\n");
else
printf("%10u\n", sector);
}
/*
* device_format:
*
* Format a direct access device.
*/
void
device_format(int argc, char *argv[])
{
u_int32_t blksize;
int i, j, immediate;
#define PC (65536/10)
static int complete[] = {
PC*1, PC*2, PC*3, PC*4, PC*5, PC*6, PC*7, PC*8, PC*9, 65536
};
char *cp, buffer[64];
struct scsi_sense_data sense;
struct scsi_format_unit cmd;
struct {
struct scsi_format_unit_defect_list_header header;
/* optional initialization pattern */
/* optional defect list */
} dfl;
struct {
struct scsi_mode_parameter_header_6 header;
struct scsi_general_block_descriptor blk_desc;
struct page_disk_format format_page;
} mode_page;
struct {
struct scsi_mode_parameter_header_6 header;
struct scsi_general_block_descriptor blk_desc;
} data_select;
/* Blocksize is an optional argument. */
if (argc > 2)
usage();
/*
* Loop doing Request Sense to clear any pending Unit Attention.
*
* Multiple conditions may exist on the drive which are returned
* in priority order.
*/
for (i = 0; i < 8; i++) {
scsi_request_sense(fd, &sense, sizeof (sense));
if ((j = SSD_SENSE_KEY(sense.flags)) == SKEY_NO_SENSE)
break;
}
/*
* Make sure we cleared any pending Unit Attention
*/
if (j != SKEY_NO_SENSE) {
cp = scsi_decode_sense((const unsigned char *) &sense, 2,
buffer, sizeof (buffer));
errx(1, "failed to clean Unit Attention: %s", cp);
}
/*
* Get the DISK FORMAT mode page. SCSI-2 recommends specifying the
* interleave read from this page in the FORMAT UNIT command.
*/
scsi_mode_sense(fd, 0x03, 0x00, &mode_page, sizeof(mode_page));
j = (mode_page.format_page.bytes_s[0] << 8) |
(mode_page.format_page.bytes_s[1]);
if (j != DEV_BSIZE)
printf("current disk sector size: %hd\n", j);
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_FORMAT_UNIT;
memcpy(cmd.interleave, mode_page.format_page.interleave,
sizeof(cmd.interleave));
/*
* The blocksize on the device is only changed if the user
* specified a new blocksize. If not specified the blocksize
* used for the device will be the Default value in the device.
* We don't specify the number of blocks since the format
* command will always reformat the entire drive. Also by
* not specifying a block count the drive will reset the
* block count to the maximum available after the format
* completes if the blocksize was changed in the format.
* Finally, the new disk geometry will not but updated on
* the drive in permanent storage until _AFTER_ the format
* completes successfully.
*/
if (argc > 0) {
blksize = strtoul(argv[0], &cp, 10);
if (*cp != '\0')
errx(1, "invalid block size: %s", argv[0]);
memset(&data_select, 0, sizeof(data_select));
data_select.header.blk_desc_len =
sizeof(struct scsi_general_block_descriptor);
/*
* blklen in desc is 3 bytes with a leading reserved byte
*/
_lto4b(blksize, &data_select.blk_desc.reserved);
/*
* Issue Mode Select to modify the device blocksize to be
* used on the Format. The modified device geometry will
* be stored as Current and Saved Page 3 parameters when
* the Format completes.
*/
scsi_mode_select(fd, 0, &data_select, sizeof(data_select));
/*
* Since user specified a specific block size make sure it
* gets stored in the device when the format completes.
*
* Also scrub the defect list back to the manufacturers
* original.
*/
cmd.flags = SFU_CMPLST | SFU_FMTDATA;
}
memset(&dfl, 0, sizeof(dfl));
if (argc > 1 && strncmp(argv[1], "imm", 3) == 0) {
/*
* Signal target for an immediate return from Format.
*
* We'll poll for completion status.
*/
dfl.header.flags = DLH_IMMED;
immediate = 1;
} else {
immediate = 0;
}
scsi_command(fd, &cmd, sizeof(cmd), &dfl, sizeof(dfl),
8 * 60 * 60 * 1000, 0);
/*
* Poll device for completion of Format
*/
if (immediate) {
i = 0;
printf("formatting.");
fflush(stdout);
do {
scsireq_t req;
struct scsi_test_unit_ready tcmd;
memset(&tcmd, 0, sizeof(cmd));
tcmd.opcode = SCSI_TEST_UNIT_READY;
memset(&req, 0, sizeof(req));
memcpy(req.cmd, &tcmd, 6);
req.cmdlen = 6;
req.timeout = 10000;
req.senselen = SENSEBUFLEN;
if (ioctl(fd, SCIOCCOMMAND, &req) == -1) {
err(1, "SCIOCCOMMAND");
}
if (req.retsts == SCCMD_OK) {
break;
} else if (req.retsts == SCCMD_TIMEOUT) {
fprintf(stderr, "%s: SCSI command timed out",
dvname);
break;
} else if (req.retsts == SCCMD_BUSY) {
fprintf(stderr, "%s: device is busy",
dvname);
break;
} else if (req.retsts != SCCMD_SENSE) {
fprintf(stderr,
"%s: device had unknown status %x", dvname,
req.retsts);
break;
}
memcpy(&sense, req.sense, SENSEBUFLEN);
if (sense.sks.sks_bytes[0] & SSD_SKSV) {
j = (sense.sks.sks_bytes[1] << 8) |
(sense.sks.sks_bytes[2]);
if (j >= complete[i]) {
printf(".%d0%%.", ++i);
fflush(stdout);
}
}
sleep(10);
} while (SSD_SENSE_KEY(sense.flags) == SKEY_NOT_READY);
printf(".100%%..done.\n");
}
return;
}
/*
* device_identify:
*
* Display the identity of the device, including it's SCSI bus,
* target, lun, and it's vendor/product/revision information.
*/
void
device_identify(int argc, char *argv[])
{
struct scsipi_inquiry_data inqbuf;
struct scsipi_inquiry cmd;
/* x4 in case every character is escaped, +1 for NUL. */
char vendor[(sizeof(inqbuf.vendor) * 4) + 1],
product[(sizeof(inqbuf.product) * 4) + 1],
revision[(sizeof(inqbuf.revision) * 4) + 1];
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
memset(&inqbuf, 0, sizeof(inqbuf));
cmd.opcode = INQUIRY;
cmd.length = sizeof(inqbuf);
scsi_command(fd, &cmd, sizeof(cmd), &inqbuf, sizeof(inqbuf),
10000, SCCMD_READ);
scsi_strvis(vendor, sizeof(vendor), inqbuf.vendor,
sizeof(inqbuf.vendor));
scsi_strvis(product, sizeof(product), inqbuf.product,
sizeof(inqbuf.product));
scsi_strvis(revision, sizeof(revision), inqbuf.revision,
sizeof(inqbuf.revision));
printf("%s: scsibus%d target %d lun %d <%s, %s, %s>\n",
dvname, dvaddr.addr.scsi.scbus, dvaddr.addr.scsi.target,
dvaddr.addr.scsi.lun, vendor, product, revision);
return;
}
/*
* device_reassign:
*
* Reassign bad blocks on a direct access device.
*/
void
device_reassign(int argc, char *argv[])
{
struct scsi_reassign_blocks cmd;
struct scsi_reassign_blocks_data *data;
size_t dlen;
u_int32_t blkno;
int i;
char *cp;
/* We get a list of block numbers. */
if (argc < 1)
usage();
/*
* Allocate the reassign blocks descriptor. The 4 comes from the
* size of the block address in the defect descriptor.
*/
dlen = sizeof(struct scsi_reassign_blocks_data) + ((argc - 1) * 4);
data = malloc(dlen);
if (data == NULL)
errx(1, "unable to allocate defect descriptor");
memset(data, 0, dlen);
cmd.opcode = SCSI_REASSIGN_BLOCKS;
cmd.byte2 = 0;
cmd.unused[0] = 0;
cmd.unused[1] = 0;
cmd.unused[2] = 0;
cmd.control = 0;
/* Defect descriptor length. */
_lto2b(argc * 4, data->length);
/* Build the defect descriptor list. */
for (i = 0; i < argc; i++) {
blkno = strtoul(argv[i], &cp, 10);
if (*cp != '\0')
errx(1, "invalid block number: %s", argv[i]);
_lto4b(blkno, data->defect_descriptor[i].dlbaddr);
}
scsi_command(fd, &cmd, sizeof(cmd), data, dlen, 30000, SCCMD_WRITE);
free(data);
return;
}
/*
* device_release:
*
* Issue a RELEASE command to a SCSI drevice
*/
#ifndef SCSI_RELEASE
#define SCSI_RELEASE 0x17
#endif
void
device_release(int argc, char *argv[])
{
struct scsi_test_unit_ready cmd; /* close enough */
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_RELEASE;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_reserve:
*
* Issue a RESERVE command to a SCSI drevice
*/
#ifndef SCSI_RESERVE
#define SCSI_RESERVE 0x16
#endif
void
device_reserve(int argc, char *argv[])
{
struct scsi_test_unit_ready cmd; /* close enough */
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_RESERVE;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_reset:
*
* Issue a reset to a SCSI device.
*/
void
device_reset(int argc, char *argv[])
{
/* No arguments. */
if (argc != 0)
usage();
if (ioctl(fd, SCIOCRESET, NULL) != 0)
err(1, "SCIOCRESET");
return;
}
/*
* device_debug:
*
* Set debug level to a SCSI device.
* scsipi will print anything iff SCSIPI_DEBUG set in config.
*/
void
device_debug(int argc, char *argv[])
{
int lvl;
if (argc < 1)
usage();
lvl = atoi(argv[0]);
if (ioctl(fd, SCIOCDEBUG, &lvl) != 0)
err(1, "SCIOCDEBUG");
return;
}
/*
* device_getcache:
*
* Get the caching parameters for a SCSI disk.
*/
void
device_getcache(int argc, char *argv[])
{
struct {
struct scsi_mode_parameter_header_6 header;
struct scsi_general_block_descriptor blk_desc;
struct page_caching caching_params;
} data;
/* No arguments. */
if (argc != 0)
usage();
scsi_mode_sense(fd, 0x08, 0x00, &data, sizeof(data));
if ((data.caching_params.flags & (CACHING_RCD|CACHING_WCE)) ==
CACHING_RCD)
printf("%s: no caches enabled\n", dvname);
else {
printf("%s: read cache %senabled\n", dvname,
(data.caching_params.flags & CACHING_RCD) ? "not " : "");
printf("%s: write-back cache %senabled\n", dvname,
(data.caching_params.flags & CACHING_WCE) ? "" : "not ");
}
printf("%s: caching parameters are %ssavable\n", dvname,
(data.caching_params.pg_code & PGCODE_PS) ? "" : "not ");
}
/*
* device_setcache:
*
* Set cache enables for a SCSI disk.
*/
void
device_setcache(int argc, char *argv[])
{
struct {
struct scsi_mode_parameter_header_6 header;
struct scsi_general_block_descriptor blk_desc;
struct page_caching caching_params;
} data;
int dlen;
u_int8_t flags, byte2;
if (argc > 2 || argc == 0)
usage();
flags = 0;
byte2 = 0;
if (strcmp(argv[0], "none") == 0)
flags = CACHING_RCD;
else if (strcmp(argv[0], "r") == 0)
flags = 0;
else if (strcmp(argv[0], "w") == 0)
flags = CACHING_RCD|CACHING_WCE;
else if (strcmp(argv[0], "rw") == 0)
flags = CACHING_WCE;
else
usage();
if (argc == 2) {
if (strcmp(argv[1], "save") == 0)
byte2 = SMS_SP;
else
usage();
}
scsi_mode_sense(fd, 0x08, 0x00, &data, sizeof(data));
data.caching_params.pg_code &= PGCODE_MASK;
data.caching_params.flags =
(data.caching_params.flags & ~(CACHING_RCD|CACHING_WCE)) | flags;
data.caching_params.cache_segment_size[0] = 0;
data.caching_params.cache_segment_size[1] = 0;
data.header.data_length = 0;
dlen = sizeof(data.header) + sizeof(data.blk_desc) + 2 +
data.caching_params.pg_length;
scsi_mode_select(fd, byte2, &data, dlen);
}
/*
* device_flushcache:
*
* Issue a FLUSH CACHE command to a SCSI drevice
*/
#ifndef SCSI_FLUSHCACHE
#define SCSI_FLUSHCACHE 0x35
#endif
void
device_flushcache(int argc, char *argv[])
{
struct scsi_test_unit_ready cmd; /* close enough */
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_FLUSHCACHE;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_prevent:
*
* Issue a prevent to a SCSI device.
*/
void
device_prevent(int argc, char *argv[])
{
struct scsi_prevent_allow_medium_removal cmd;
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL;
cmd.how = SPAMR_PREVENT_DT; /* XXX SMAMR_PREVENT_ALL? */
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_allow:
*
* Issue a stop to a SCSI device.
*/
void
device_allow(int argc, char *argv[])
{
struct scsi_prevent_allow_medium_removal cmd;
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL;
cmd.how = SPAMR_ALLOW;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_start:
*
* Issue a start to a SCSI device.
*/
void
device_start(int argc, char *argv[])
{
struct scsipi_start_stop cmd;
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = START_STOP;
cmd.how = SSS_START;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 30000, 0);
return;
}
/*
* device_stop:
*
* Issue a stop to a SCSI device.
*/
void
device_stop(int argc, char *argv[])
{
struct scsipi_start_stop cmd;
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = START_STOP;
cmd.how = SSS_STOP;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 30000, 0);
return;
}
/*
* device_tur:
*
* Issue a TEST UNIT READY to a SCSI drevice
*/
void
device_tur(int argc, char *argv[])
{
struct scsi_test_unit_ready cmd;
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_TEST_UNIT_READY;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* BUS COMMANDS
*/
/*
* bus_reset:
*
* Issue a reset to a SCSI bus.
*/
void
bus_reset(int argc, char *argv[])
{
/* No arguments. */
if (argc != 0)
usage();
if (ioctl(fd, SCBUSIORESET, NULL) != 0)
err(1, "SCBUSIORESET");
return;
}
/*
* bus_scan:
*
* Rescan a SCSI bus for new devices.
*/
void
bus_scan(int argc, char *argv[])
{
struct scbusioscan_args args;
char *cp;
/* Must have two args: target lun */
if (argc != 2)
usage();
if (strcmp(argv[0], "any") == 0 || strcmp(argv[0], "all") == 0)
args.sa_target = -1;
else {
args.sa_target = strtol(argv[0], &cp, 10);
if (*cp != '\0' || args.sa_target < 0)
errx(1, "invalid target: %s", argv[0]);
}
if (strcmp(argv[1], "any") == 0 || strcmp(argv[1], "all") == 0)
args.sa_lun = -1;
else {
args.sa_lun = strtol(argv[1], &cp, 10);
if (*cp != '\0' || args.sa_lun < 0)
errx(1, "invalid lun: %s", argv[1]);
}
if (ioctl(fd, SCBUSIOSCAN, &args) != 0)
err(1, "SCBUSIOSCAN");
return;
}
/*
* bus_detach:
*
* detach SCSI devices from a bus.
*/
void
bus_detach(int argc, char *argv[])
{
struct scbusiodetach_args args;
char *cp;
/* Must have two args: target lun */
if (argc != 2)
usage();
if (strcmp(argv[0], "any") == 0 || strcmp(argv[0], "all") == 0)
args.sa_target = -1;
else {
args.sa_target = strtol(argv[0], &cp, 10);
if (*cp != '\0' || args.sa_target < 0)
errx(1, "invalid target: %s", argv[0]);
}
if (strcmp(argv[1], "any") == 0 || strcmp(argv[1], "all") == 0)
args.sa_lun = -1;
else {
args.sa_lun = strtol(argv[1], &cp, 10);
if (*cp != '\0' || args.sa_lun < 0)
errx(1, "invalid lun: %s", argv[1]);
}
if (ioctl(fd, SCBUSIODETACH, &args) != 0)
err(1, "SCBUSIODETACH");
return;
}
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