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libata: Limit max sector to 128 for TORiSAN DVD drives (take 3) 

patch 3/4:
  The TORiSAN drive locks up when max sector == 256.
  Limit max sector to 128 for the TORiSAN DRD-N216 drives.
  (http://bugzilla.kernel.org/show_bug.cgi?id=6710)

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Albert Lee 2007-04-02 11:34:15 +08:00 committed by Jeff Garzik
parent 56287768e3
commit 18d6e9d518
3 changed files with 8 additions and 0 deletions
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6
drivers/ata/libata-core.c
View File

@ -1784,6 +1784,9 @@ int ata_dev_configure(struct ata_device *dev)
dev->max_sectors = ATA_MAX_SECTORS;
}
if (ata_device_blacklisted(dev) & ATA_HORKAGE_MAX_SEC_128)
dev->max_sectors = min(ATA_MAX_SECTORS_128, dev->max_sectors);
if (ap->ops->dev_config)
ap->ops->dev_config(ap, dev);
@ -3352,6 +3355,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA },
/* Weird ATAPI devices */
{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 },
/* Devices we expect to fail diagnostics */
/* Devices where NCQ should be avoided */

1
include/linux/ata.h
View File

@ -40,6 +40,7 @@ enum {
ATA_MAX_DEVICES = 2, /* per bus/port */
ATA_MAX_PRD = 256, /* we could make these 256/256 */
ATA_SECT_SIZE = 512,
ATA_MAX_SECTORS_128 = 128,
ATA_MAX_SECTORS = 256,
ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */

1
include/linux/libata.h
View File

@ -311,6 +311,7 @@ enum {
ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */
ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */
ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */
ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
};
enum hsm_task_states {