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pktcdvd: Get rid of custom printing macros

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We may use traditional dev_*() macros instead of custom ones
provided by the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230310164549.22133-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Andy Shevchenko 2023-03-10 18:45:41 +02:00 committed by Jens Axboe
parent 1341c7d2cc
commit 3a41db531e
3 changed files with 130 additions and 119 deletions
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245
drivers/block/pktcdvd.c
View File

@ -72,22 +72,6 @@
#define DRIVER_NAME "pktcdvd"
#define pkt_err(pd, fmt, ...) \
pr_err("%s: " fmt, pd->name, ##__VA_ARGS__)
#define pkt_notice(pd, fmt, ...) \
pr_notice("%s: " fmt, pd->name, ##__VA_ARGS__)
#define pkt_info(pd, fmt, ...) \
pr_info("%s: " fmt, pd->name, ##__VA_ARGS__)
#define pkt_dbg(level, pd, fmt, ...) \
do { \
if (level == 2 && PACKET_DEBUG >= 2) \
pr_notice("%s: %s():" fmt, \
pd->name, __func__, ##__VA_ARGS__); \
else if (level == 1 && PACKET_DEBUG >= 1) \
pr_notice("%s: " fmt, pd->name, ##__VA_ARGS__); \
} while (0)
#define MAX_SPEED 0xffff
static DEFINE_MUTEX(pktcdvd_mutex);
@ -319,7 +303,7 @@ static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
if (class_is_registered(&class_pktcdvd)) {
pd->dev = device_create_with_groups(&class_pktcdvd, NULL,
MKDEV(0, 0), pd, pkt_groups,
"%s", pd->name);
"%s", pd->disk->disk_name);
if (IS_ERR(pd->dev))
pd->dev = NULL;
}
@ -350,7 +334,7 @@ static ssize_t device_map_show(const struct class *c, const struct class_attribu
if (!pd)
continue;
n += sprintf(data+n, "%s %u:%u %u:%u\n",
pd->name,
pd->disk->disk_name,
MAJOR(pd->pkt_dev), MINOR(pd->pkt_dev),
MAJOR(pd->bdev->bd_dev),
MINOR(pd->bdev->bd_dev));
@ -450,7 +434,7 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
{
if (!pkt_debugfs_root)
return;
pd->dfs_d_root = debugfs_create_dir(pd->name, pkt_debugfs_root);
pd->dfs_d_root = debugfs_create_dir(pd->disk->disk_name, pkt_debugfs_root);
if (!pd->dfs_d_root)
return;
@ -484,9 +468,11 @@ static void pkt_debugfs_cleanup(void)
static void pkt_bio_finished(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
BUG_ON(atomic_read(&pd->cdrw.pending_bios) <= 0);
if (atomic_dec_and_test(&pd->cdrw.pending_bios)) {
pkt_dbg(2, pd, "queue empty\n");
dev_dbg(ddev, "queue empty\n");
atomic_set(&pd->iosched.attention, 1);
wake_up(&pd->wqueue);
}
@ -717,15 +703,16 @@ static const char *sense_key_string(__u8 index)
static void pkt_dump_sense(struct pktcdvd_device *pd,
struct packet_command *cgc)
{
struct device *ddev = disk_to_dev(pd->disk);
struct scsi_sense_hdr *sshdr = cgc->sshdr;
if (sshdr)
pkt_err(pd, "%*ph - sense %02x.%02x.%02x (%s)\n",
dev_err(ddev, "%*ph - sense %02x.%02x.%02x (%s)\n",
CDROM_PACKET_SIZE, cgc->cmd,
sshdr->sense_key, sshdr->asc, sshdr->ascq,
sense_key_string(sshdr->sense_key));
else
pkt_err(pd, "%*ph - no sense\n", CDROM_PACKET_SIZE, cgc->cmd);
dev_err(ddev, "%*ph - no sense\n", CDROM_PACKET_SIZE, cgc->cmd);
}
/*
@ -809,6 +796,7 @@ static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio)
*/
static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
if (atomic_read(&pd->iosched.attention) == 0)
return;
@ -836,7 +824,7 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
need_write_seek = 0;
if (need_write_seek && reads_queued) {
if (atomic_read(&pd->cdrw.pending_bios) > 0) {
pkt_dbg(2, pd, "write, waiting\n");
dev_dbg(ddev, "write, waiting\n");
break;
}
pkt_flush_cache(pd);
@ -845,7 +833,7 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
} else {
if (!reads_queued && writes_queued) {
if (atomic_read(&pd->cdrw.pending_bios) > 0) {
pkt_dbg(2, pd, "read, waiting\n");
dev_dbg(ddev, "read, waiting\n");
break;
}
pd->iosched.writing = 1;
@ -892,6 +880,8 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
*/
static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q)
{
struct device *ddev = disk_to_dev(pd->disk);
if ((pd->settings.size << 9) / CD_FRAMESIZE
<= queue_max_segments(q)) {
/*
@ -908,7 +898,7 @@ static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_que
set_bit(PACKET_MERGE_SEGS, &pd->flags);
return 0;
} else {
pkt_err(pd, "cdrom max_phys_segments too small\n");
dev_err(ddev, "cdrom max_phys_segments too small\n");
return -EIO;
}
}
@ -919,7 +909,7 @@ static void pkt_end_io_read(struct bio *bio)
struct pktcdvd_device *pd = pkt->pd;
BUG_ON(!pd);
pkt_dbg(2, pd, "bio=%p sec0=%llx sec=%llx err=%d\n",
dev_dbg(disk_to_dev(pd->disk), "bio=%p sec0=%llx sec=%llx err=%d\n",
bio, (unsigned long long)pkt->sector,
(unsigned long long)bio->bi_iter.bi_sector, bio->bi_status);
@ -939,7 +929,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
struct pktcdvd_device *pd = pkt->pd;
BUG_ON(!pd);
pkt_dbg(2, pd, "id=%d, err=%d\n", pkt->id, bio->bi_status);
dev_dbg(disk_to_dev(pd->disk), "id=%d, err=%d\n", pkt->id, bio->bi_status);
pd->stats.pkt_ended++;
@ -955,6 +945,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
*/
static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
{
struct device *ddev = disk_to_dev(pd->disk);
int frames_read = 0;
struct bio *bio;
int f;
@ -983,8 +974,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
spin_unlock(&pkt->lock);
if (pkt->cache_valid) {
pkt_dbg(2, pd, "zone %llx cached\n",
(unsigned long long)pkt->sector);
dev_dbg(ddev, "zone %llx cached\n", (unsigned long long)pkt->sector);
goto out_account;
}
@ -1005,8 +995,8 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
p = (f * CD_FRAMESIZE) / PAGE_SIZE;
offset = (f * CD_FRAMESIZE) % PAGE_SIZE;
pkt_dbg(2, pd, "Adding frame %d, page:%p offs:%d\n",
f, pkt->pages[p], offset);
dev_dbg(ddev, "Adding frame %d, page:%p offs:%d\n", f,
pkt->pages[p], offset);
if (!bio_add_page(bio, pkt->pages[p], CD_FRAMESIZE, offset))
BUG();
@ -1016,8 +1006,8 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
}
out_account:
pkt_dbg(2, pd, "need %d frames for zone %llx\n",
frames_read, (unsigned long long)pkt->sector);
dev_dbg(ddev, "need %d frames for zone %llx\n", frames_read,
(unsigned long long)pkt->sector);
pd->stats.pkt_started++;
pd->stats.secs_rg += frames_read * (CD_FRAMESIZE >> 9);
}
@ -1051,17 +1041,18 @@ static void pkt_put_packet_data(struct pktcdvd_device *pd, struct packet_data *p
}
}
static inline void pkt_set_state(struct packet_data *pkt, enum packet_data_state state)
static inline void pkt_set_state(struct device *ddev, struct packet_data *pkt,
enum packet_data_state state)
{
#if PACKET_DEBUG > 1
static const char *state_name[] = {
"IDLE", "WAITING", "READ_WAIT", "WRITE_WAIT", "RECOVERY", "FINISHED"
};
enum packet_data_state old_state = pkt->state;
pkt_dbg(2, pd, "pkt %2d : s=%6llx %s -> %s\n",
dev_dbg(ddev, "pkt %2d : s=%6llx %s -> %s\n",
pkt->id, (unsigned long long)pkt->sector,
state_name[old_state], state_name[state]);
#endif
pkt->state = state;
}
@ -1071,6 +1062,7 @@ static inline void pkt_set_state(struct packet_data *pkt, enum packet_data_state
*/
static int pkt_handle_queue(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_data *pkt, *p;
struct bio *bio = NULL;
sector_t zone = 0; /* Suppress gcc warning */
@ -1080,7 +1072,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
atomic_set(&pd->scan_queue, 0);
if (list_empty(&pd->cdrw.pkt_free_list)) {
pkt_dbg(2, pd, "no pkt\n");
dev_dbg(ddev, "no pkt\n");
return 0;
}
@ -1117,7 +1109,7 @@ try_next_bio:
}
spin_unlock(&pd->lock);
if (!bio) {
pkt_dbg(2, pd, "no bio\n");
dev_dbg(ddev, "no bio\n");
return 0;
}
@ -1133,12 +1125,13 @@ try_next_bio:
* to this packet.
*/
spin_lock(&pd->lock);
pkt_dbg(2, pd, "looking for zone %llx\n", (unsigned long long)zone);
dev_dbg(ddev, "looking for zone %llx\n", (unsigned long long)zone);
while ((node = pkt_rbtree_find(pd, zone)) != NULL) {
sector_t tmp = get_zone(node->bio->bi_iter.bi_sector, pd);
bio = node->bio;
pkt_dbg(2, pd, "found zone=%llx\n", (unsigned long long)
get_zone(bio->bi_iter.bi_sector, pd));
if (get_zone(bio->bi_iter.bi_sector, pd) != zone)
dev_dbg(ddev, "found zone=%llx\n", (unsigned long long)tmp);
if (tmp != zone)
break;
pkt_rbtree_erase(pd, node);
spin_lock(&pkt->lock);
@ -1157,7 +1150,7 @@ try_next_bio:
spin_unlock(&pd->lock);
pkt->sleep_time = max(PACKET_WAIT_TIME, 1);
pkt_set_state(pkt, PACKET_WAITING_STATE);
pkt_set_state(ddev, pkt, PACKET_WAITING_STATE);
atomic_set(&pkt->run_sm, 1);
spin_lock(&pd->cdrw.active_list_lock);
@ -1209,6 +1202,7 @@ static void bio_list_copy_data(struct bio *dst, struct bio *src)
*/
static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
{
struct device *ddev = disk_to_dev(pd->disk);
int f;
bio_init(pkt->w_bio, pd->bdev, pkt->w_bio->bi_inline_vecs, pkt->frames,
@ -1225,7 +1219,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
if (!bio_add_page(pkt->w_bio, page, CD_FRAMESIZE, offset))
BUG();
}
pkt_dbg(2, pd, "vcnt=%d\n", pkt->w_bio->bi_vcnt);
dev_dbg(ddev, "vcnt=%d\n", pkt->w_bio->bi_vcnt);
/*
* Fill-in bvec with data from orig_bios.
@ -1233,11 +1227,11 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
spin_lock(&pkt->lock);
bio_list_copy_data(pkt->w_bio, pkt->orig_bios.head);
pkt_set_state(pkt, PACKET_WRITE_WAIT_STATE);
pkt_set_state(ddev, pkt, PACKET_WRITE_WAIT_STATE);
spin_unlock(&pkt->lock);
pkt_dbg(2, pd, "Writing %d frames for zone %llx\n",
pkt->write_size, (unsigned long long)pkt->sector);
dev_dbg(ddev, "Writing %d frames for zone %llx\n", pkt->write_size,
(unsigned long long)pkt->sector);
if (test_bit(PACKET_MERGE_SEGS, &pd->flags) || (pkt->write_size < pkt->frames))
pkt->cache_valid = 1;
@ -1265,7 +1259,9 @@ static void pkt_finish_packet(struct packet_data *pkt, blk_status_t status)
static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data *pkt)
{
pkt_dbg(2, pd, "pkt %d\n", pkt->id);
struct device *ddev = disk_to_dev(pd->disk);
dev_dbg(ddev, "pkt %d\n", pkt->id);
for (;;) {
switch (pkt->state) {
@ -1275,7 +1271,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
pkt->sleep_time = 0;
pkt_gather_data(pd, pkt);
pkt_set_state(pkt, PACKET_READ_WAIT_STATE);
pkt_set_state(ddev, pkt, PACKET_READ_WAIT_STATE);
break;
case PACKET_READ_WAIT_STATE:
@ -1283,7 +1279,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
return;
if (atomic_read(&pkt->io_errors) > 0) {
pkt_set_state(pkt, PACKET_RECOVERY_STATE);
pkt_set_state(ddev, pkt, PACKET_RECOVERY_STATE);
} else {
pkt_start_write(pd, pkt);
}
@ -1294,15 +1290,15 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
return;
if (!pkt->w_bio->bi_status) {
pkt_set_state(pkt, PACKET_FINISHED_STATE);
pkt_set_state(ddev, pkt, PACKET_FINISHED_STATE);
} else {
pkt_set_state(pkt, PACKET_RECOVERY_STATE);
pkt_set_state(ddev, pkt, PACKET_RECOVERY_STATE);
}
break;
case PACKET_RECOVERY_STATE:
pkt_dbg(2, pd, "No recovery possible\n");
pkt_set_state(pkt, PACKET_FINISHED_STATE);
dev_dbg(ddev, "No recovery possible\n");
pkt_set_state(ddev, pkt, PACKET_FINISHED_STATE);
break;
case PACKET_FINISHED_STATE:
@ -1318,6 +1314,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
static void pkt_handle_packets(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_data *pkt, *next;
/*
@ -1338,7 +1335,7 @@ static void pkt_handle_packets(struct pktcdvd_device *pd)
if (pkt->state == PACKET_FINISHED_STATE) {
list_del(&pkt->list);
pkt_put_packet_data(pd, pkt);
pkt_set_state(pkt, PACKET_IDLE_STATE);
pkt_set_state(ddev, pkt, PACKET_IDLE_STATE);
atomic_set(&pd->scan_queue, 1);
}
}
@ -1367,7 +1364,9 @@ static void pkt_count_states(struct pktcdvd_device *pd, int *states)
static int kcdrwd(void *foobar)
{
struct pktcdvd_device *pd = foobar;
struct device *ddev = disk_to_dev(pd->disk);
struct packet_data *pkt;
int states[PACKET_NUM_STATES];
long min_sleep_time, residue;
set_user_nice(current, MIN_NICE);
@ -1398,13 +1397,9 @@ static int kcdrwd(void *foobar)
goto work_to_do;
/* Otherwise, go to sleep */
if (PACKET_DEBUG > 1) {
int states[PACKET_NUM_STATES];
pkt_count_states(pd, states);
pkt_dbg(2, pd, "i:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
states[0], states[1], states[2],
states[3], states[4], states[5]);
}
dev_dbg(ddev, "i:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
states[0], states[1], states[2], states[3], states[4], states[5]);
min_sleep_time = MAX_SCHEDULE_TIMEOUT;
list_for_each_entry(pkt, &pd->cdrw.pkt_active_list, list) {
@ -1412,9 +1407,9 @@ static int kcdrwd(void *foobar)
min_sleep_time = pkt->sleep_time;
}
pkt_dbg(2, pd, "sleeping\n");
dev_dbg(ddev, "sleeping\n");
residue = schedule_timeout(min_sleep_time);
pkt_dbg(2, pd, "wake up\n");
dev_dbg(ddev, "wake up\n");
/* make swsusp happy with our thread */
try_to_freeze();
@ -1462,7 +1457,7 @@ work_to_do:
static void pkt_print_settings(struct pktcdvd_device *pd)
{
pkt_info(pd, "%s packets, %u blocks, Mode-%c disc\n",
dev_info(disk_to_dev(pd->disk), "%s packets, %u blocks, Mode-%c disc\n",
pd->settings.fp ? "Fixed" : "Variable",
pd->settings.size >> 2,
pd->settings.block_mode == 8 ? '1' : '2');
@ -1590,6 +1585,7 @@ static noinline_for_stack int pkt_get_last_written(struct pktcdvd_device *pd,
*/
static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_command cgc;
struct scsi_sense_hdr sshdr;
write_param_page *wp;
@ -1656,7 +1652,7 @@ static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
/*
* paranoia
*/
pkt_err(pd, "write mode wrong %d\n", wp->data_block_type);
dev_err(ddev, "write mode wrong %d\n", wp->data_block_type);
return 1;
}
wp->packet_size = cpu_to_be32(pd->settings.size >> 2);
@ -1677,6 +1673,8 @@ static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
*/
static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
{
struct device *ddev = disk_to_dev(pd->disk);
switch (pd->mmc3_profile) {
case 0x1a: /* DVD+RW */
case 0x12: /* DVD-RAM */
@ -1701,7 +1699,7 @@ static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
if (ti->rt == 1 && ti->blank == 0)
return 1;
pkt_err(pd, "bad state %d-%d-%d\n", ti->rt, ti->blank, ti->packet);
dev_err(ddev, "bad state %d-%d-%d\n", ti->rt, ti->blank, ti->packet);
return 0;
}
@ -1710,6 +1708,8 @@ static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
*/
static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
{
struct device *ddev = disk_to_dev(pd->disk);
switch (pd->mmc3_profile) {
case 0x0a: /* CD-RW */
case 0xffff: /* MMC3 not supported */
@ -1719,8 +1719,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
case 0x12: /* DVD-RAM */
return 1;
default:
pkt_dbg(2, pd, "Wrong disc profile (%x)\n",
pd->mmc3_profile);
dev_dbg(ddev, "Wrong disc profile (%x)\n", pd->mmc3_profile);
return 0;
}
@ -1729,22 +1728,22 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
* but i'm not sure, should we leave this to user apps? probably.
*/
if (di->disc_type == 0xff) {
pkt_notice(pd, "unknown disc - no track?\n");
dev_notice(ddev, "unknown disc - no track?\n");
return 0;
}
if (di->disc_type != 0x20 && di->disc_type != 0) {
pkt_err(pd, "wrong disc type (%x)\n", di->disc_type);
dev_err(ddev, "wrong disc type (%x)\n", di->disc_type);
return 0;
}
if (di->erasable == 0) {
pkt_notice(pd, "disc not erasable\n");
dev_err(ddev, "disc not erasable\n");
return 0;
}
if (di->border_status == PACKET_SESSION_RESERVED) {
pkt_err(pd, "can't write to last track (reserved)\n");
dev_err(ddev, "can't write to last track (reserved)\n");
return 0;
}
@ -1753,6 +1752,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_command cgc;
unsigned char buf[12];
disc_information di;
@ -1770,7 +1770,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
ret = pkt_get_disc_info(pd, &di);
if (ret) {
pkt_err(pd, "failed get_disc\n");
dev_err(ddev, "failed get_disc\n");
return ret;
}
@ -1782,12 +1782,12 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
track = 1; /* (di.last_track_msb << 8) | di.last_track_lsb; */
ret = pkt_get_track_info(pd, track, 1, &ti);
if (ret) {
pkt_err(pd, "failed get_track\n");
dev_err(ddev, "failed get_track\n");
return ret;
}
if (!pkt_writable_track(pd, &ti)) {
pkt_err(pd, "can't write to this track\n");
dev_err(ddev, "can't write to this track\n");
return -EROFS;
}
@ -1797,11 +1797,11 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
*/
pd->settings.size = be32_to_cpu(ti.fixed_packet_size) << 2;
if (pd->settings.size == 0) {
pkt_notice(pd, "detected zero packet size!\n");
dev_notice(ddev, "detected zero packet size!\n");
return -ENXIO;
}
if (pd->settings.size > PACKET_MAX_SECTORS) {
pkt_err(pd, "packet size is too big\n");
dev_err(ddev, "packet size is too big\n");
return -EROFS;
}
pd->settings.fp = ti.fp;
@ -1843,7 +1843,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
pd->settings.block_mode = PACKET_BLOCK_MODE2;
break;
default:
pkt_err(pd, "unknown data mode\n");
dev_err(ddev, "unknown data mode\n");
return -EROFS;
}
return 0;
@ -1854,6 +1854,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
*/
static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_command cgc;
struct scsi_sense_hdr sshdr;
unsigned char buf[64];
@ -1883,10 +1884,10 @@ static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd)
cgc.buflen = cgc.cmd[8] = 2 + ((buf[0] << 8) | (buf[1] & 0xff));
ret = pkt_mode_select(pd, &cgc);
if (ret) {
pkt_err(pd, "write caching control failed\n");
dev_err(ddev, "write caching control failed\n");
pkt_dump_sense(pd, &cgc);
} else if (!ret && set)
pkt_notice(pd, "enabled write caching\n");
dev_notice(ddev, "enabled write caching\n");
return ret;
}
@ -1967,6 +1968,7 @@ static char us_clv_to_speed[16] = {
static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
unsigned *speed)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_command cgc;
struct scsi_sense_hdr sshdr;
unsigned char buf[64];
@ -2001,11 +2003,11 @@ static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
}
if (!(buf[6] & 0x40)) {
pkt_notice(pd, "disc type is not CD-RW\n");
dev_notice(ddev, "disc type is not CD-RW\n");
return 1;
}
if (!(buf[6] & 0x4)) {
pkt_notice(pd, "A1 values on media are not valid, maybe not CDRW?\n");
dev_notice(ddev, "A1 values on media are not valid, maybe not CDRW?\n");
return 1;
}
@ -2025,25 +2027,26 @@ static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
*speed = us_clv_to_speed[sp];
break;
default:
pkt_notice(pd, "unknown disc sub-type %d\n", st);
dev_notice(ddev, "unknown disc sub-type %d\n", st);
return 1;
}
if (*speed) {
pkt_info(pd, "maximum media speed: %d\n", *speed);
dev_info(ddev, "maximum media speed: %d\n", *speed);
return 0;
} else {
pkt_notice(pd, "unknown speed %d for sub-type %d\n", sp, st);
dev_notice(ddev, "unknown speed %d for sub-type %d\n", sp, st);
return 1;
}
}
static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
struct packet_command cgc;
struct scsi_sense_hdr sshdr;
int ret;
pkt_dbg(2, pd, "Performing OPC\n");
dev_dbg(ddev, "Performing OPC\n");
init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
cgc.sshdr = &sshdr;
@ -2058,18 +2061,19 @@ static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
static int pkt_open_write(struct pktcdvd_device *pd)
{
struct device *ddev = disk_to_dev(pd->disk);
int ret;
unsigned int write_speed, media_write_speed, read_speed;
ret = pkt_probe_settings(pd);
if (ret) {
pkt_dbg(2, pd, "failed probe\n");
dev_dbg(ddev, "failed probe\n");
return ret;
}
ret = pkt_set_write_settings(pd);
if (ret) {
pkt_dbg(1, pd, "failed saving write settings\n");
dev_notice(ddev, "failed saving write settings\n");
return -EIO;
}
@ -2082,30 +2086,29 @@ static int pkt_open_write(struct pktcdvd_device *pd)
case 0x13: /* DVD-RW */
case 0x1a: /* DVD+RW */
case 0x12: /* DVD-RAM */
pkt_dbg(1, pd, "write speed %ukB/s\n", write_speed);
dev_notice(ddev, "write speed %ukB/s\n", write_speed);
break;
default:
ret = pkt_media_speed(pd, &media_write_speed);
if (ret)
media_write_speed = 16;
write_speed = min(write_speed, media_write_speed * 177);
pkt_dbg(1, pd, "write speed %ux\n", write_speed / 176);
dev_notice(ddev, "write speed %ux\n", write_speed / 176);
break;
}
read_speed = write_speed;
ret = pkt_set_speed(pd, write_speed, read_speed);
if (ret) {
pkt_dbg(1, pd, "couldn't set write speed\n");
dev_notice(ddev, "couldn't set write speed\n");
return -EIO;
}
pd->write_speed = write_speed;
pd->read_speed = read_speed;
ret = pkt_perform_opc(pd);
if (ret) {
pkt_dbg(1, pd, "Optimum Power Calibration failed\n");
}
if (ret)
dev_notice(ddev, "Optimum Power Calibration failed\n");
return 0;
}
@ -2115,6 +2118,7 @@ static int pkt_open_write(struct pktcdvd_device *pd)
*/
static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
{
struct device *ddev = disk_to_dev(pd->disk);
int ret;
long lba;
struct request_queue *q;
@ -2134,7 +2138,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
ret = pkt_get_last_written(pd, &lba);
if (ret) {
pkt_err(pd, "pkt_get_last_written failed\n");
dev_err(ddev, "pkt_get_last_written failed\n");
goto out_putdev;
}
@ -2163,11 +2167,11 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
if (write) {
if (!pkt_grow_pktlist(pd, CONFIG_CDROM_PKTCDVD_BUFFERS)) {
pkt_err(pd, "not enough memory for buffers\n");
dev_err(ddev, "not enough memory for buffers\n");
ret = -ENOMEM;
goto out_putdev;
}
pkt_info(pd, "%lukB available on disc\n", lba << 1);
dev_info(ddev, "%lukB available on disc\n", lba << 1);
}
return 0;
@ -2184,8 +2188,10 @@ out:
*/
static void pkt_release_dev(struct pktcdvd_device *pd, int flush)
{
struct device *ddev = disk_to_dev(pd->disk);
if (flush && pkt_flush_cache(pd))
pkt_dbg(1, pd, "not flushing cache\n");
dev_notice(ddev, "not flushing cache\n");
pkt_lock_door(pd, 0);
@ -2386,13 +2392,14 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio)
static void pkt_submit_bio(struct bio *bio)
{
struct pktcdvd_device *pd = bio->bi_bdev->bd_disk->queue->queuedata;
struct device *ddev = disk_to_dev(pd->disk);
struct bio *split;
bio = bio_split_to_limits(bio);
if (!bio)
return;
pkt_dbg(2, pd, "start = %6llx stop = %6llx\n",
dev_dbg(ddev, "start = %6llx stop = %6llx\n",
(unsigned long long)bio->bi_iter.bi_sector,
(unsigned long long)bio_end_sector(bio));
@ -2405,13 +2412,13 @@ static void pkt_submit_bio(struct bio *bio)
}
if (!test_bit(PACKET_WRITABLE, &pd->flags)) {
pkt_notice(pd, "WRITE for ro device (%llu)\n",
dev_notice(ddev, "WRITE for ro device (%llu)\n",
(unsigned long long)bio->bi_iter.bi_sector);
goto end_io;
}
if (!bio->bi_iter.bi_size || (bio->bi_iter.bi_size % CD_FRAMESIZE)) {
pkt_err(pd, "wrong bio size\n");
dev_err(ddev, "wrong bio size\n");
goto end_io;
}
@ -2453,7 +2460,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
char *msg;
int states[PACKET_NUM_STATES];
seq_printf(m, "Writer %s mapped to %pg:\n", pd->name, pd->bdev);
seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name, pd->bdev);
seq_printf(m, "\nSettings:\n");
seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
@ -2509,12 +2516,13 @@ static int pkt_seq_show(struct seq_file *m, void *p)
static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
{
struct device *ddev = disk_to_dev(pd->disk);
int i;
struct block_device *bdev;
struct scsi_device *sdev;
if (pd->pkt_dev == dev) {
pkt_err(pd, "recursive setup not allowed\n");
dev_err(ddev, "recursive setup not allowed\n");
return -EBUSY;
}
for (i = 0; i < MAX_WRITERS; i++) {
@ -2522,11 +2530,11 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
if (!pd2)
continue;
if (pd2->bdev->bd_dev == dev) {
pkt_err(pd, "%pg already setup\n", pd2->bdev);
dev_err(ddev, "%pg already setup\n", pd2->bdev);
return -EBUSY;
}
if (pd2->pkt_dev == dev) {
pkt_err(pd, "can't chain pktcdvd devices\n");
dev_err(ddev, "can't chain pktcdvd devices\n");
return -EBUSY;
}
}
@ -2550,14 +2558,14 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
pkt_init_queue(pd);
atomic_set(&pd->cdrw.pending_bios, 0);
pd->cdrw.thread = kthread_run(kcdrwd, pd, "%s", pd->name);
pd->cdrw.thread = kthread_run(kcdrwd, pd, "%s", pd->disk->disk_name);
if (IS_ERR(pd->cdrw.thread)) {
pkt_err(pd, "can't start kernel thread\n");
dev_err(ddev, "can't start kernel thread\n");
goto out_mem;
}
proc_create_single_data(pd->name, 0, pkt_proc, pkt_seq_show, pd);
pkt_dbg(1, pd, "writer mapped to %pg\n", bdev);
proc_create_single_data(pd->disk->disk_name, 0, pkt_proc, pkt_seq_show, pd);
dev_notice(ddev, "writer mapped to %pg\n", bdev);
return 0;
out_mem:
@ -2570,10 +2578,10 @@ out_mem:
static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
{
struct pktcdvd_device *pd = bdev->bd_disk->private_data;
struct device *ddev = disk_to_dev(pd->disk);
int ret;
pkt_dbg(2, pd, "cmd %x, dev %d:%d\n",
cmd, MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
dev_dbg(ddev, "cmd %x, dev %d:%d\n", cmd, MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
mutex_lock(&pktcdvd_mutex);
switch (cmd) {
@ -2599,7 +2607,7 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
ret = bdev->bd_disk->fops->ioctl(bdev, mode, cmd, arg);
break;
default:
pkt_dbg(2, pd, "Unknown ioctl (%x)\n", cmd);
dev_dbg(ddev, "Unknown ioctl (%x)\n", cmd);
ret = -ENOTTY;
}
mutex_unlock(&pktcdvd_mutex);
@ -2677,7 +2685,6 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
spin_lock_init(&pd->iosched.lock);
bio_list_init(&pd->iosched.read_queue);
bio_list_init(&pd->iosched.write_queue);
sprintf(pd->name, DRIVER_NAME"%d", idx);
init_waitqueue_head(&pd->wqueue);
pd->bio_queue = RB_ROOT;
@ -2694,7 +2701,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
disk->minors = 1;
disk->fops = &pktcdvd_ops;
disk->flags = GENHD_FL_REMOVABLE | GENHD_FL_NO_PART;
strcpy(disk->disk_name, pd->name);
snprintf(disk->disk_name, sizeof(disk->disk_name), DRIVER_NAME"%d", idx);
disk->private_data = pd;
pd->pkt_dev = MKDEV(pktdev_major, idx);
@ -2736,6 +2743,7 @@ out_mutex:
static int pkt_remove_dev(dev_t pkt_dev)
{
struct pktcdvd_device *pd;
struct device *ddev;
int idx;
int ret = 0;
@ -2756,6 +2764,9 @@ static int pkt_remove_dev(dev_t pkt_dev)
ret = -EBUSY;
goto out;
}
ddev = disk_to_dev(pd->disk);
if (!IS_ERR(pd->cdrw.thread))
kthread_stop(pd->cdrw.thread);
@ -2766,8 +2777,8 @@ static int pkt_remove_dev(dev_t pkt_dev)
blkdev_put(pd->bdev, FMODE_READ | FMODE_NDELAY);
remove_proc_entry(pd->name, pkt_proc);
pkt_dbg(1, pd, "writer unmapped\n");
remove_proc_entry(pd->disk->disk_name, pkt_proc);
dev_notice(ddev, "writer unmapped\n");
del_gendisk(pd->disk);
put_disk(pd->disk);

1
include/linux/pktcdvd.h
View File

@ -156,7 +156,6 @@ struct pktcdvd_device
{
struct block_device *bdev; /* dev attached */
dev_t pkt_dev; /* our dev */
char name[20];
struct packet_settings settings;
struct packet_stats stats;
int refcnt; /* Open count */

1
include/uapi/linux/pktcdvd.h
View File

@ -16,6 +16,7 @@
#include <linux/types.h>
/*
* UNUSED:
* 1 for normal debug messages, 2 is very verbose. 0 to turn it off.
*/
#define PACKET_DEBUG 1