int
dz_get_zones(void)
{
unsigned int nr_zones;
int ret;
ret = zbc_report_nr_zones(dz.dev, 0, ZBC_RO_ALL, &nr_zones);
if ( ret != 0 ) {
return( ret );
}
if ( dz.nr_zones
&& (dz.nr_zones != nr_zones) ) {
/* Zone list changed: clean it */
free(dz.zones);
dz.zones = NULL;
dz.nr_zones = 0;
}
if ( ! dz.nr_zones ) {
printf("Device \"%s\": %llu sectors of %u B, %d zones\n",
dz.filename,
(unsigned long long) dz.info.zbd_physical_blocks,
(unsigned int) dz.info.zbd_physical_block_size,
nr_zones);
}
/* Get/refresh zone list */
ret = zbc_list_zones(dz.dev, 0, ZBC_RO_ALL, &dz.zones, &dz.nr_zones);
if ( ret != 0 ) {
ret = errno;
fprintf(stderr, "zbc_list_zones failed %d (%s)\n",
errno,
strerror(errno));
if ( dz.zones ) {
free(dz.zones);
dz.zones = NULL;
dz.nr_zones = 0;
}
goto out;
}
out:
return( ret );
}
int
dz_get_zones(dz_dev_t *dzd)
{
int ret;
if ( ! dzd->zones ) {
/* Get zone list */
dzd->zone_ro = ZBC_RO_ALL;
ret = zbc_list_zones(dzd->dev, 0, dzd->zone_ro, &dzd->zones, &dzd->nr_zones);
if ( ret == 0 ) {
dzd->max_nr_zones = dzd->nr_zones;
}
} else {
/* Refresh zone list */
dzd->nr_zones = dzd->max_nr_zones;
ret = zbc_report_zones(dzd->dev, 0, dzd->zone_ro, dzd->zones, &dzd->nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "Get zone information failed %d (%s)\n",
errno,
strerror(errno));
if ( dzd->zones ) {
free(dzd->zones);
dzd->zones = NULL;
dzd->nr_zones = 0;
dzd->max_nr_zones = 0;
}
}
}
return( ret );
}
int main(int argc,
char **argv)
{
struct zbc_device_info info;
long long z;
struct zbc_device *dev;
int i, lba = 0, ret = 1;
zbc_zone_t *zones = NULL, *rzone = NULL;;
unsigned int nr_zones, rzone_idx = -1;
char *path;
/* Check command line */
if ( argc < 2 ) {
usage:
printf("Usage: %s [options] <dev> <zone>\n"
" By default <zone> is interpreted as a zone number.\n"
" If the -lba option is used, <zone> is interpreted as\n"
" the start LBA of the zone to reset.\n"
" If <zone> is -1, all zones are reset.\n"
"Options:\n"
" -v : Verbose mode\n"
" -lba : Interpret <zone> as a zone start LBA instead of a zone number\n",
argv[0]);
return( 1 );
}
/* Parse options */
for(i = 1; i < (argc - 1); i++) {
if ( strcmp(argv[i], "-v") == 0 ) {
zbc_set_log_level("debug");
} else if ( strcmp(argv[i], "-lba") == 0 ) {
lba = 1;
} else if ( argv[i][0] == '-' ) {
printf("Unknown option \"%s\"\n",
argv[i]);
goto usage;
} else {
break;
}
}
if ( i != (argc - 2) ) {
goto usage;
}
/* Open device */
path = argv[i];
ret = zbc_open(path, O_RDONLY, &dev);
if ( ret != 0 ) {
return( 1 );
}
ret = zbc_get_device_info(dev, &info);
if ( ret < 0 ) {
fprintf(stderr,
"zbc_get_device_info failed\n");
goto out;
}
printf("Device %s: %s\n",
path,
info.zbd_vendor_id);
printf(" %s interface, %s disk model\n",
zbc_disk_type_str(info.zbd_type),
zbc_disk_model_str(info.zbd_model));
printf(" %llu logical blocks of %u B\n",
(unsigned long long) info.zbd_logical_blocks,
(unsigned int) info.zbd_logical_block_size);
printf(" %llu physical blocks of %u B\n",
(unsigned long long) info.zbd_physical_blocks,
(unsigned int) info.zbd_physical_block_size);
printf(" %.03F GB capacity\n",
(double) (info.zbd_physical_blocks * info.zbd_physical_block_size) / 1000000000);
/* Target zone */
z = strtoll(argv[i + 1], NULL, 10);
if ( z == -1 ) {
printf("Resetting all zones...\n");
} else {
/* Get zone list */
ret = zbc_list_zones(dev, 0, ZBC_RO_ALL, &zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Search target zone */
if ( lba == 0 ) {
if ( (z >= 0) && (z < nr_zones) ) {
rzone = &zones[z];
rzone_idx = z;
}
} else {
for(i = 0; i < (int)nr_zones; i++) {
if ( zones[i].zbz_start == (uint64_t)z ) {
rzone = &zones[i];
rzone_idx = i;
break;
}
}
}
if ( ! rzone ) {
fprintf(stderr, "Target zone not found\n");
ret = 1;
goto out;
}
printf("Resetting zone %d/%d, start LBA %llu...\n",
rzone_idx,
nr_zones,
(unsigned long long) rzone->zbz_start);
z = rzone->zbz_start;
}
/* Reset WP */
ret = zbc_reset_write_pointer(dev, z);
if ( ret != 0 ) {
fprintf(stderr,
"zbc_reset_write_pointer failed\n");
ret = 1;
}
out:
if ( zones ) {
free(zones);
}
/* Close device file */
zbc_close(dev);
return( ret );
}
int main(int argc,
char **argv)
{
struct zbc_device_info info;
struct zbc_device *dev;
zbc_zone_t *zones = NULL;
unsigned int nr_zones;
long long lba;
int i, z, ret = 1;
char *path;
/* Check command line */
if ( argc < 4 ) {
usage:
printf("Usage: %s [options] <dev> <zone number> <LBA (-1 for full)>\n"
"Options:\n"
" -v : Verbose mode\n",
argv[0]);
return( 1 );
}
/* Parse options */
for(i = 1; i < (argc - 1); i++) {
if ( strcmp(argv[i], "-v") == 0 ) {
zbc_set_log_level("debug");
} else if ( argv[i][0] == '-' ) {
printf("Unknown option \"%s\"\n",
argv[i]);
goto usage;
} else {
break;
}
}
if ( i != (argc - 3) ) {
goto usage;
}
/* Open device */
path = argv[i];
ret = zbc_open(path, O_RDONLY, &dev);
if ( ret != 0 ) {
return( 1 );
}
ret = zbc_get_device_info(dev, &info);
if ( ret < 0 ) {
fprintf(stderr,
"zbc_get_device_info failed\n");
goto out;
}
printf("Device %s: %s interface, %s disk model\n",
path,
zbc_disk_type_str(info.zbd_type),
zbc_disk_model_str(info.zbd_model));
printf(" %llu logical blocks of %u B\n",
(unsigned long long) info.zbd_logical_blocks,
(unsigned int) info.zbd_logical_block_size);
printf(" %llu physical blocks of %u B\n",
(unsigned long long) info.zbd_physical_blocks,
(unsigned int) info.zbd_physical_block_size);
/* Get zone list */
ret = zbc_list_zones(dev, 0, ZBC_RO_ALL, &zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Check target zone */
z = atoi(argv[i + 1]);
if ( (z < 0) || (z > (int)nr_zones) ) {
fprintf(stderr, "Invalid target zone number\n");
ret = 1;
goto out;
}
/* Get write pointer LBA */
lba = strtoll(argv[i + 2], NULL, 10);
if ( lba == -1 ) {
lba = zones[z].zbz_start + zones[z].zbz_length;
}
printf("Setting zone %d/%d write pointer LBA to %llu...\n",
z,
nr_zones,
(unsigned long long) lba);
/* Set WP */
ret = zbc_set_write_pointer(dev, zones[z].zbz_start, lba);
if ( ret != 0 ) {
fprintf(stderr,
"zbc_set_write_pointer failed\n");
ret = 1;
}
out:
if ( zones ) {
free(zones);
}
/* Close device file */
zbc_close(dev);
return( ret );
}
int main(int argc,
char **argv)
{
struct zbc_device_info info;
unsigned long long lba = 0;
struct zbc_device *dev;
enum zbc_reporting_options ro = ZBC_RO_ALL;
int i, ret = 1;
int num = 0;
zbc_zone_t *zones = NULL;
unsigned int nr_zones;
char *path;
/* Check command line */
if ( argc < 2 ) {
usage:
printf("Usage: %s [options] <dev>\n"
"Options:\n"
" -v : Verbose mode\n"
" -n : Get only the number of zones\n"
" -lba <lba> : Specify zone start LBA (default is 0)\n"
" -ro <opt> : Specify reporting option: \"all\", \"empty\",\n"
" \"open\", \"rdonly\", \"full\", \"offline\",\n"
" \"reset\", \"non_seq\" or \"not_wp\".\n"
" Default is \"all\"\n",
argv[0]);
return( 1 );
}
/* Parse options */
for(i = 1; i < (argc - 1); i++) {
if ( strcmp(argv[i], "-v") == 0 ) {
zbc_set_log_level("debug");
} else if ( strcmp(argv[i], "-n") == 0 ) {
num = 1;
} else if ( strcmp(argv[i], "-lba") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
lba = strtoll(argv[i], NULL, 10);
} else if ( strcmp(argv[i], "-ro") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
if ( strcmp(argv[i], "all") == 0 ) {
ro = ZBC_RO_ALL;
} else if ( strcmp(argv[i], "full") == 0 ) {
ro = ZBC_RO_FULL;
} else if ( strcmp(argv[i], "open") == 0 ) {
ro = ZBC_RO_OPEN;
} else if ( strcmp(argv[i], "empty") == 0 ) {
ro = ZBC_RO_EMPTY;
} else if ( strcmp(argv[i], "rdonly") == 0 ) {
ro = ZBC_RO_RDONLY;
} else if ( strcmp(argv[i], "offline") == 0 ) {
ro = ZBC_RO_OFFLINE;
} else if ( strcmp(argv[i], "reset") == 0 ) {
ro = ZBC_RO_RESET;
} else if ( strcmp(argv[i], "non_seq") == 0 ) {
ro = ZBC_RO_NON_SEQ;
} else if ( strcmp(argv[i], "not_wp") == 0 ) {
ro = ZBC_RO_NOT_WP;
} else {
fprintf(stderr, "Unknown zone reporting option \"%s\"\n",
argv[i]);
goto usage;
}
} else if ( argv[i][0] == '-' ) {
printf("Unknown option \"%s\"\n",
argv[i]);
goto usage;
} else {
break;
}
}
if ( i != (argc - 1) ) {
goto usage;
}
/* Open device */
path = argv[i];
ret = zbc_open(path, O_RDONLY, &dev);
if ( ret != 0 ) {
return( 1 );
}
ret = zbc_get_device_info(dev, &info);
if ( ret < 0 ) {
fprintf(stderr,
"zbc_get_device_info failed\n");
goto out;
}
printf("Device %s: %s interface, %s disk model\n",
path,
zbc_disk_type_str(info.zbd_type),
zbc_disk_model_str(info.zbd_model));
printf(" %llu logical blocks of %u B\n",
(unsigned long long) info.zbd_logical_blocks,
(unsigned int) info.zbd_logical_block_size);
printf(" %llu physical blocks of %u B\n",
(unsigned long long) info.zbd_physical_blocks,
(unsigned int) info.zbd_physical_block_size);
/* Get zone list */
ret = zbc_list_zones(dev, lba, ro, &zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Print zone info */
printf(" %u zones from LBA %llu, reporting option 0x%02x\n",
nr_zones,
lba,
ro);
if ( ! num ) {
for(i = 0; i < nr_zones; i++) {
printf("Zone %05d: type 0x%x, cond 0x%x, need_reset %d, non_seq %d, LBA %11llu, %11llu sectors, wp %11llu\n",
i,
zones[i].zbz_type,
zones[i].zbz_condition,
zones[i].zbz_need_reset,
zones[i].zbz_non_seq,
(unsigned long long) zones[i].zbz_start,
(unsigned long long) zones[i].zbz_length,
(unsigned long long) zones[i].zbz_write_pointer);
}
}
out:
if ( zones ) {
free(zones);
}
zbc_close(dev);
return( ret );
}
int
main(int argc,
char **argv)
{
struct zbc_device_info info;
struct zbc_device *dev = NULL;
unsigned long long elapsed;
unsigned long long bcount = 0;
unsigned long long fsize, brate;
struct stat st;
int zidx;
int floop = 0, fd = -1, i, ret = 1;
size_t iosize, ioalign;
void *iobuf = NULL;
uint32_t lba_count = 0;
int iocount = 0, ionum = 0;
struct zbc_zone *zones = NULL;
struct zbc_zone *iozone = NULL;
unsigned int nr_zones;
char *path, *file = NULL;
long long lba_ofst = 0;
int flush = 0;
/* Check command line */
if ( argc < 4 ) {
usage:
printf("Usage: %s [options] <dev> <zone no> <I/O size>\n"
" Write into a zone from the current write pointer until\n"
" the zone is full or the number of I/O specified is executed\n"
"Options:\n"
" -v : Verbose mode\n"
" -s : (sync) Run zbc_flush after writing\n"
" -nio <num> : Limit the number of I/O executed to <num>\n"
" -f <file> : Write the content of <file>\n"
" -loop : If a file is specified, repeatedly write the\n"
" file to the zone until the zone is full.\n"
" -lba : lba offset, from given zone <zone no> starting lba, where to write.\n",
argv[0]);
return( 1 );
}
/* Parse options */
for(i = 1; i < (argc - 1); i++) {
if ( strcmp(argv[i], "-v") == 0 ) {
zbc_set_log_level("debug");
} else if ( strcmp(argv[i], "-s") == 0 ) {
flush = 1;
} else if ( strcmp(argv[i], "-nio") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
ionum = atoi(argv[i]);
if ( ionum <= 0 ) {
fprintf(stderr, "Invalid number of I/Os\n");
return( 1 );
}
} else if ( strcmp(argv[i], "-f") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
file = argv[i];
} else if ( strcmp(argv[i], "-loop") == 0 ) {
floop = 1;
} else if ( strcmp(argv[i], "-lba") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
lba_ofst = atoll(argv[i]);
if ( lba_ofst < 0 ) {
fprintf(stderr, "Invalid negative LBA offset\n");
return( 1 );
}
} else if ( argv[i][0] == '-' ) {
fprintf(stderr,
"Unknown option \"%s\"\n",
argv[i]);
goto usage;
} else {
break;
}
}
if ( i != (argc - 3) ) {
goto usage;
}
/* Get parameters */
path = argv[i];
zidx = atoi(argv[i + 1]);
if ( zidx < 0 ) {
fprintf(stderr,
"Invalid zone number %s\n",
argv[i + 1]);
ret = 1;
goto out;
}
iosize = atol(argv[i + 2]);
if ( ! iosize ) {
fprintf(stderr,
"Invalid I/O size %s\n",
argv[i + 2]);
ret = 1;
goto out;
}
/* Setup signal handler */
signal(SIGQUIT, zbc_write_zone_sigcatcher);
signal(SIGINT, zbc_write_zone_sigcatcher);
signal(SIGTERM, zbc_write_zone_sigcatcher);
/* Open device */
ret = zbc_open(path, O_WRONLY, &dev);
if ( ret != 0 ) {
return( 1 );
}
ret = zbc_get_device_info(dev, &info);
if ( ret < 0 ) {
fprintf(stderr,
"zbc_get_device_info failed\n");
goto out;
}
/* Get zone list */
ret = zbc_list_zones(dev, 0, ZBC_RO_ALL, &zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Get target zone */
if ( zidx >= (int)nr_zones ) {
fprintf(stderr, "Target zone not found\n");
ret = 1;
goto out;
}
iozone = &zones[zidx];
printf("Device %s: %s interface, %s disk model\n",
path,
zbc_disk_type_str(info.zbd_type),
zbc_disk_model_str(info.zbd_model));
printf(" %llu logical blocks of %u B\n",
(unsigned long long) info.zbd_logical_blocks,
(unsigned int) info.zbd_logical_block_size);
printf(" %llu physical blocks of %u B\n",
(unsigned long long) info.zbd_physical_blocks,
(unsigned int) info.zbd_physical_block_size);
printf("Target zone: Zone %d / %d, type 0x%x, cond 0x%x, need_reset %d, non_seq %d, LBA %llu, %llu sectors, wp %llu\n",
zidx,
nr_zones,
iozone->zbz_type,
iozone->zbz_condition,
iozone->zbz_need_reset,
iozone->zbz_non_seq,
zbc_zone_start_lba(iozone),
zbc_zone_length(iozone),
zbc_zone_wp_lba(iozone));
/* Check I/O size alignment */
if ( zbc_zone_sequential_req(iozone) ) {
ioalign = info.zbd_physical_block_size;
} else {
ioalign = info.zbd_logical_block_size;
}
if ( iosize % ioalign ) {
fprintf(stderr,
"Invalid I/O size %zu (must be aligned on %zu)\n",
iosize,
ioalign);
ret = 1;
goto out;
}
/* Get an I/O buffer */
ret = posix_memalign((void **) &iobuf, ioalign, iosize);
if ( ret != 0 ) {
fprintf(stderr,
"No memory for I/O buffer (%zu B)\n",
iosize);
ret = 1;
goto out;
}
/* Open the file to write, if any */
if ( file ) {
fd = open(file, O_LARGEFILE | O_RDONLY);
if ( fd < 0 ) {
fprintf(stderr, "Open file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
goto out;
}
ret = fstat(fd, &st);
if ( ret != 0 ) {
fprintf(stderr, "Stat file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
goto out;
}
if ( S_ISREG(st.st_mode) ) {
fsize = st.st_size;
} else if ( S_ISBLK(st.st_mode) ) {
ret = ioctl(fd, BLKGETSIZE64, &fsize);
if ( ret != 0 ) {
fprintf(stderr,
"ioctl BLKGETSIZE64 block device \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
goto out;
}
} else {
fprintf(stderr, "Unsupported file \"%s\" type\n",
file);
ret = 1;
goto out;
}
printf("Writting file \"%s\" (%llu B) to target zone %d, %zu B I/Os\n",
file,
fsize,
zidx,
iosize);
} else if ( ! ionum ) {
printf("Filling target zone %d, %zu B I/Os\n",
zidx,
iosize);
} else {
printf("Writting to target zone %d, %d I/Os of %zu B\n",
zidx,
ionum,
iosize);
}
if ( ! zbc_zone_conventional(iozone) ) {
lba_ofst = zbc_zone_wp_lba(iozone) - zbc_zone_start_lba(iozone);
}
elapsed = zbc_write_zone_usec();
while( (! zbc_write_zone_abort)
&& (lba_ofst < (long long)zbc_zone_length(iozone)) ) {
if ( file ) {
size_t ios;
/* Read file */
ret = read(fd, iobuf, iosize);
if ( ret < 0 ) {
fprintf(stderr, "Read file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
break;
}
ios = ret;
if ( ios < iosize ) {
if ( floop ) {
/* Rewind and read remaining of buffer */
lseek(fd, 0, SEEK_SET);
ret = read(fd, iobuf + ios, iosize - ios);
if ( ret < 0 ) {
fprintf(stderr, "Read file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
break;
}
ios += ret;
} else if ( ios ) {
/* Clear end of buffer */
memset(iobuf + ios, 0, iosize - ios);
}
}
if ( ! ios ) {
/* EOF */
break;
}
}
/* Write to zone */
lba_count = iosize / info.zbd_logical_block_size;
if ( (lba_ofst + lba_count) > (long long)zbc_zone_length(iozone) ) {
lba_count = zbc_zone_length(iozone) - lba_ofst;
}
if ( zbc_zone_conventional(iozone) ) {
ret = zbc_pwrite(dev, iozone, iobuf, lba_count, lba_ofst);
if ( ret > 0 ) {
lba_ofst += ret;
}
} else {
ret = zbc_write(dev, iozone, iobuf, lba_count);
}
if ( ret <= 0 ) {
ret = 1;
break;
}
/* Update zone write pointer */
lba_ofst += ret;
if ( zbc_zone_sequential_req(iozone) ) {
iozone->zbz_write_pointer += ret;
} else if ( zbc_zone_sequential_pref(iozone) ) {
ret = zbc_report_zones(dev, 0, ZBC_RO_ALL, zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_report_zones failed\n");
ret = 1;
goto out;
}
}
bcount += ret * info.zbd_logical_block_size;
iocount++;
if ( (ionum > 0) && (iocount >= ionum) ) {
break;
}
}
elapsed = zbc_write_zone_usec() - elapsed;
if ( elapsed ) {
printf("Wrote %llu B (%d I/Os) in %llu.%03llu sec\n",
bcount,
iocount,
elapsed / 1000000,
(elapsed % 1000000) / 1000);
printf(" IOPS %llu\n",
iocount * 1000000 / elapsed);
brate = bcount * 1000000 / elapsed;
printf(" BW %llu.%03llu MB/s\n",
brate / 1000000,
(brate % 1000000) / 1000);
} else {
printf("Wrote %llu B (%d I/Os)\n",
bcount,
iocount);
}
if ( flush ) {
printf("Flushing disk...\n");
ret = zbc_flush(dev);
if ( ret != 0 ) {
fprintf(stderr, "zbc_flush failed %d (%s)\n",
-ret,
strerror(-ret));
ret = 1;
}
}
out:
if ( iobuf ) {
free(iobuf);
}
if ( fd > 0 ) {
close(fd);
}
if ( zones ) {
free(zones);
}
zbc_close(dev);
return( ret );
}
int main(int argc, char **argv)
{
struct zbc_device_info info;
struct zbc_device *dev = NULL;
unsigned long long elapsed;
unsigned long long bcount = 0;
unsigned long long brate;
int zidx;
int fd = -1, i;
ssize_t ret = 1;
size_t iosize;
void *iobuf = NULL;
ssize_t sector_count;
unsigned long long ionum = 0, iocount = 0;
struct zbc_zone *zones = NULL;
struct zbc_zone *iozone = NULL;
unsigned int nr_zones;
char *path, *file = NULL;
long long sector_ofst = 0;
long long sector_max = 0;
int flags = O_RDONLY;
/* Check command line */
if (argc < 4) {
usage:
printf("Usage: %s [options] <dev> <zone no> <I/O size (B)>\n"
" Read a zone up to the current write pointer\n"
" or the number of I/O specified is executed\n"
"Options:\n"
" -v : Verbose mode\n"
" -dio : Use direct I/Os\n"
" -nio <num> : Limit the number of I/Os to <num>\n"
" -f <file> : Write the content of the zone to <file>\n"
" If <file> is \"-\", the zone content is\n"
" written to the standard output\n"
" -ofst : sector offset from the start sector of\n"
" the zone (default 0 or write pointer)\n",
argv[0]);
return 1;
}
/* Parse options */
for (i = 1; i < (argc - 1); i++) {
if (strcmp(argv[i], "-v") == 0) {
zbc_set_log_level("debug");
} else if (strcmp(argv[i], "-dio") == 0) {
flags |= O_DIRECT;
} else if (strcmp(argv[i], "-nio") == 0) {
if (i >= (argc - 1))
goto usage;
i++;
ionum = atoi(argv[i]);
if (ionum <= 0) {
fprintf(stderr, "Invalid number of I/Os\n");
return 1;
}
} else if (strcmp(argv[i], "-f") == 0) {
if (i >= (argc - 1))
goto usage;
i++;
file = argv[i];
} else if (strcmp(argv[i], "-ofst") == 0) {
if (i >= (argc - 1))
goto usage;
i++;
sector_ofst = atoll(argv[i]);
if (sector_ofst < 0) {
fprintf(stderr, "Invalid sector offset\n");
return 1;
}
} else if (argv[i][0] == '-') {
fprintf(stderr, "Unknown option \"%s\"\n", argv[i]);
goto usage;
} else {
break;
}
}
if (i != (argc - 3))
goto usage;
/* Get parameters */
path = argv[i];
zidx = atoi(argv[i + 1]);
if (zidx < 0) {
fprintf(stderr, "Invalid zone number %s\n", argv[i + 1]);
return 1;
}
iosize = atol(argv[i + 2]);
if (!iosize) {
fprintf(stderr, "Invalid I/O size %s\n", argv[i + 2]);
return 1;
}
/* Setup signal handler */
signal(SIGQUIT, zbc_read_zone_sigcatcher);
signal(SIGINT, zbc_read_zone_sigcatcher);
signal(SIGTERM, zbc_read_zone_sigcatcher);
/* Open device */
ret = zbc_open(path, flags, &dev);
if (ret != 0) {
if (ret == -ENODEV)
fprintf(stderr,
"Open %s failed (not a zoned block device)\n",
path);
else
fprintf(stderr, "Open %s failed (%s)\n",
path, strerror(-ret));
return 1;
}
zbc_get_device_info(dev, &info);
printf("Device %s:\n", path);
zbc_print_device_info(&info, stdout);
/* Get zone list */
ret = zbc_list_zones(dev, 0, ZBC_RO_ALL, &zones, &nr_zones);
if (ret != 0) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Get target zone */
if ((unsigned int)zidx >= nr_zones) {
fprintf(stderr, "Target zone not found\n");
ret = 1;
goto out;
}
iozone = &zones[zidx];
if (zbc_zone_conventional(iozone))
printf("Target zone: Conventional zone %d / %d, "
"sector %llu, %llu sectors\n",
zidx,
nr_zones,
zbc_zone_start(iozone),
zbc_zone_length(iozone));
else
printf("Target zone: Zone %d / %d, type 0x%x (%s), "
"cond 0x%x (%s), rwp %d, non_seq %d, "
"sector %llu, %llu sectors, wp %llu\n",
zidx,
nr_zones,
zbc_zone_type(iozone),
zbc_zone_type_str(zbc_zone_type(iozone)),
zbc_zone_condition(iozone),
zbc_zone_condition_str(zbc_zone_condition(iozone)),
zbc_zone_rwp_recommended(iozone),
zbc_zone_non_seq(iozone),
zbc_zone_start(iozone),
zbc_zone_length(iozone),
zbc_zone_wp(iozone));
/* Check I/O alignment and get an I/O buffer */
if (iosize % info.zbd_lblock_size) {
fprintf(stderr,
"Invalid I/O size %zu (must be a multiple of %u B)\n",
iosize,
(unsigned int) info.zbd_lblock_size);
ret = 1;
goto out;
}
ret = posix_memalign((void **) &iobuf, sysconf(_SC_PAGESIZE), iosize);
if ( ret != 0 ) {
fprintf(stderr, "No memory for I/O buffer (%zu B)\n", iosize);
ret = 1;
goto out;
}
/* Open the file to write, if any */
if (file) {
if (strcmp(file, "-") == 0) {
fd = fileno(stdout);
printf("Writting target zone %d to standard output, "
"%zu B I/Os\n",
zidx, iosize);
} else {
fd = open(file,
O_CREAT | O_TRUNC | O_LARGEFILE | O_WRONLY,
S_IRUSR | S_IWUSR | S_IRGRP);
if (fd < 0) {
fprintf(stderr, "Open file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
goto out;
}
printf("Writting target zone %d to file \"%s\", "
"%zu B I/Os\n",
zidx, file, iosize);
}
} else if (!ionum) {
printf("Reading target zone %d, %zu B I/Os\n",
zidx, iosize);
} else {
printf("Reading target zone %d, %llu I/Os of %zu B\n",
zidx, ionum, iosize);
}
if (zbc_zone_sequential_req(iozone) &&
!zbc_zone_full(iozone))
sector_max = zbc_zone_wp(iozone) - zbc_zone_start(iozone);
else
sector_max = zbc_zone_length(iozone);
elapsed = zbc_read_zone_usec();
while (!zbc_read_zone_abort &&
sector_ofst < sector_max) {
/* Read zone */
sector_count = iosize >> 9;
if (sector_ofst + sector_count > sector_max)
sector_count = sector_max - sector_ofst;
ret = zbc_pread(dev, iobuf, sector_count,
zbc_zone_start(iozone) + sector_ofst);
if (ret <= 0) {
fprintf(stderr, "zbc_pread failed %zd (%s)\n",
-ret, strerror(-ret));
ret = 1;
break;
}
sector_count = ret;
if (file) {
/* Write zone data to output file */
ret = write(fd, iobuf, sector_count << 9);
if (ret < 0) {
fprintf(stderr, "Write file \"%s\" failed %d (%s)\n",
file,
errno, strerror(errno));
ret = 1;
break;
}
}
sector_ofst += sector_count;
bcount += sector_count << 9;
iocount++;
ret = 0;
if (ionum > 0 && iocount >= ionum)
break;
}
elapsed = zbc_read_zone_usec() - elapsed;
if (elapsed) {
printf("Read %llu B (%llu I/Os) in %llu.%03llu sec\n",
bcount,
iocount,
elapsed / 1000000,
(elapsed % 1000000) / 1000);
printf(" IOPS %llu\n",
iocount * 1000000 / elapsed);
brate = bcount * 1000000 / elapsed;
printf(" BW %llu.%03llu MB/s\n",
brate / 1000000,
(brate % 1000000) / 1000);
} else {
printf("Read %llu B (%llu I/Os)\n",
bcount,
iocount);
}
out:
if ( file && (fd > 0) ) {
if (fd != fileno(stdout))
close(fd);
if (ret != 0)
unlink(file);
}
if (iobuf)
free(iobuf);
if (zones)
free(zones);
zbc_close(dev);
return ret;
}
int main(int argc,
char **argv)
{
struct zbc_device_info info;
struct zbc_device *dev = NULL;
unsigned long long elapsed;
unsigned long long bcount = 0;
unsigned long long brate;
int zidx;
int fd = -1, i, ret = 1;
size_t iosize;
void *iobuf = NULL;
uint32_t lba_count;
unsigned long long ionum = 0, iocount = 0;
struct zbc_zone *zones = NULL;
struct zbc_zone *iozone = NULL;
unsigned int nr_zones;
char *path, *file = NULL;
long long lba_ofst = 0;
long long lba_max = 0;
int flags = O_RDONLY;
/* Check command line */
if ( argc < 4 ) {
usage:
printf("Usage: %s [options] <dev> <zone no> <I/O size (B)>\n"
" Read a zone up to the current write pointer\n"
" or the number of I/O specified is executed\n"
"Options:\n"
" -v : Verbose mode\n"
" -dio : Use direct I/Os for accessing the device\n"
" -nio <num> : Limit the number of I/O executed to <num>\n"
" -f <file> : Write the content of the zone to <file>\n"
" If <file> is \"-\", the zone content is\n"
" written to the standard output\n"
" -lba : lba offset from the starting lba of the zone <zone no>.\n",
argv[0]);
return( 1 );
}
/* Parse options */
for(i = 1; i < (argc - 1); i++) {
if ( strcmp(argv[i], "-v") == 0 ) {
zbc_set_log_level("debug");
} else if ( strcmp(argv[i], "-dio") == 0 ) {
flags |= O_DIRECT;
} else if ( strcmp(argv[i], "-nio") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
ionum = atoi(argv[i]);
if ( ionum <= 0 ) {
fprintf(stderr, "Invalid number of I/Os\n");
return( 1 );
}
} else if ( strcmp(argv[i], "-f") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
file = argv[i];
} else if ( strcmp(argv[i], "-lba") == 0 ) {
if ( i >= (argc - 1) ) {
goto usage;
}
i++;
lba_ofst = atoll(argv[i]);
if ( lba_ofst < 0 ) {
fprintf(stderr, "LBA offset has to be greater or equal to 0.\n");
return( 1 );
}
} else if ( argv[i][0] == '-' ) {
fprintf(stderr,
"Unknown option \"%s\"\n",
argv[i]);
goto usage;
} else {
break;
}
}
if ( i != (argc - 3) ) {
goto usage;
}
/* Get parameters */
path = argv[i];
zidx = atoi(argv[i + 1]);
if ( zidx < 0 ) {
fprintf(stderr,
"Invalid zone number %s\n",
argv[i + 1]);
ret = 1;
goto out;
}
iosize = atol(argv[i + 2]);
if ( ! iosize ) {
fprintf(stderr,
"Invalid I/O size %s\n",
argv[i + 2]);
ret = 1;
goto out;
}
/* Setup signal handler */
signal(SIGQUIT, zbc_read_zone_sigcatcher);
signal(SIGINT, zbc_read_zone_sigcatcher);
signal(SIGTERM, zbc_read_zone_sigcatcher);
/* Open device */
ret = zbc_open(path, flags, &dev);
if ( ret != 0 ) {
return( 1 );
}
ret = zbc_get_device_info(dev, &info);
if ( ret < 0 ) {
fprintf(stderr,
"zbc_get_device_info failed\n");
goto out;
}
/* Get zone list */
ret = zbc_list_zones(dev, 0, ZBC_RO_ALL, &zones, &nr_zones);
if ( ret != 0 ) {
fprintf(stderr, "zbc_list_zones failed\n");
ret = 1;
goto out;
}
/* Get target zone */
if ( (unsigned int)zidx >= nr_zones ) {
fprintf(stderr, "Target zone not found\n");
ret = 1;
goto out;
}
iozone = &zones[zidx];
printf("Device %s: %s\n",
path,
info.zbd_vendor_id);
printf(" %s interface, %s disk model\n",
zbc_disk_type_str(info.zbd_type),
zbc_disk_model_str(info.zbd_model));
printf(" %llu logical blocks of %u B\n",
(unsigned long long) info.zbd_logical_blocks,
(unsigned int) info.zbd_logical_block_size);
printf(" %llu physical blocks of %u B\n",
(unsigned long long) info.zbd_physical_blocks,
(unsigned int) info.zbd_physical_block_size);
printf(" %.03F GB capacity\n",
(double) (info.zbd_physical_blocks * info.zbd_physical_block_size) / 1000000000);
printf("Target zone: Zone %d / %d, type 0x%x (%s), cond 0x%x (%s), need_reset %d, "
"non_seq %d, LBA %llu, %llu sectors, wp %llu\n",
zidx,
nr_zones,
zbc_zone_type(iozone),
zbc_zone_type_str(zbc_zone_type(iozone)),
zbc_zone_condition(iozone),
zbc_zone_condition_str(zbc_zone_condition(iozone)),
zbc_zone_need_reset(iozone),
zbc_zone_non_seq(iozone),
zbc_zone_start_lba(iozone),
zbc_zone_length(iozone),
zbc_zone_wp_lba(iozone));
/* Check alignment and get an I/O buffer */
if ( iosize % info.zbd_logical_block_size ) {
fprintf(stderr,
"Invalid I/O size %zu (must be aligned on %u)\n",
iosize,
(unsigned int) info.zbd_logical_block_size);
ret = 1;
goto out;
}
ret = posix_memalign((void **) &iobuf, sysconf(_SC_PAGESIZE), iosize);
if ( ret != 0 ) {
fprintf(stderr,
"No memory for I/O buffer (%zu B)\n",
iosize);
ret = 1;
goto out;
}
/* Open the file to write, if any */
if ( file ) {
if ( strcmp(file, "-") == 0 ) {
fd = fileno(stdout);
printf("Writting target zone %d to standard output, %zu B I/Os\n",
zidx,
iosize);
} else {
fd = open(file, O_CREAT | O_TRUNC | O_LARGEFILE | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP);
if ( fd < 0 ) {
fprintf(stderr, "Open file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
goto out;
}
printf("Writting target zone %d to file \"%s\", %zu B I/Os\n",
zidx,
file,
iosize);
}
} else if ( ! ionum ) {
printf("Reading target zone %d, %zu B I/Os\n",
zidx,
iosize);
} else {
printf("Reading target zone %d, %llu I/Os of %zu B\n",
zidx,
ionum,
iosize);
}
if ( zbc_zone_sequential_req(iozone)
&& (! zbc_zone_full(iozone)) ) {
lba_max = zbc_zone_wp_lba(iozone) - zbc_zone_start_lba(iozone);
} else {
lba_max = zbc_zone_length(iozone);
}
lba_count = iosize / info.zbd_logical_block_size;
elapsed = zbc_read_zone_usec();
while( (! zbc_read_zone_abort)
&& (lba_ofst < lba_max) ) {
/* Read zone */
if ( (lba_ofst + lba_count) > lba_max ) {
lba_count = lba_max - lba_ofst;
}
ret = zbc_pread(dev, iozone, iobuf, lba_count, lba_ofst);
if ( ret <= 0 ) {
fprintf(stderr, "zbc_pread failed %d (%s)\n",
-ret,
strerror(-ret));
ret = 1;
break;
}
lba_count = ret;
if ( file ) {
/* Write file */
ret = write(fd, iobuf, lba_count * info.zbd_logical_block_size);
if ( ret < 0 ) {
fprintf(stderr, "Write file \"%s\" failed %d (%s)\n",
file,
errno,
strerror(errno));
ret = 1;
break;
}
}
lba_ofst += lba_count;
bcount += lba_count * info.zbd_logical_block_size;
iocount++;
ret = 0;
/* If a number of IO was given as input then
* lba_max = iozone + lba_ofst + ionum
*/
if ( (ionum > 0) && (iocount >= ionum) ) {
break;
}
}
elapsed = zbc_read_zone_usec() - elapsed;
if ( elapsed ) {
printf("Read %llu B (%llu I/Os) in %llu.%03llu sec\n",
bcount,
iocount,
elapsed / 1000000,
(elapsed % 1000000) / 1000);
printf(" IOPS %llu\n",
iocount * 1000000 / elapsed);
brate = bcount * 1000000 / elapsed;
printf(" BW %llu.%03llu MB/s\n",
brate / 1000000,
(brate % 1000000) / 1000);
} else {
printf("Read %llu B (%llu I/Os)\n",
bcount,
iocount);
}
out:
if ( file && (fd > 0) ) {
if ( fd != fileno(stdout) ) {
close(fd);
}
if ( ret != 0 ) {
unlink(file);
}
}
if ( iobuf ) {
free(iobuf);
}
if ( zones ) {
free(zones);
}
zbc_close(dev);
return( ret );
}
