HDS724040KLSA80 reports that it supports HPA && LBA48 but craps itself
on READ_NATIVE_MAX_EXT. Implement BROKEN_HPA horkage and apply it to
the drive. If the horkage is set, all HPA operations are skipped.
While at it, make HPA test a bit more reliable by also checking
ata_id_has_hpa().
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
Cc: Quel Qun <[EMAIL PROTECTED]>
Cc: Luiz Fernando N. Capitulino <[EMAIL PROTECTED]>
---
The drive worked fine before HPA support was added and thus this is a
regression fix. Please consider for -stable.
Thanks.
drivers/ata/libata-core.c | 4 +++-
include/linux/libata.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 60e78be..7158a06 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1911,7 +1911,8 @@ int ata_dev_configure(struct ata_device *dev)
dev->flags |= ATA_DFLAG_FLUSH_EXT;
}
- if (ata_id_hpa_enabled(dev->id))
+ if (!(dev->horkage & ATA_HORKAGE_BROKEN_HPA) &&
+ ata_id_has_hpa(id) && ata_id_hpa_enabled(dev->id))
dev->n_sectors = ata_hpa_resize(dev);
/* config NCQ */
@@ -3789,6 +3790,7 @@ static const struct ata_blacklist_entry
ata_device_blacklist [] = {
{ "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, },
{ "ST9160821AS", "3.CLF", ATA_HORKAGE_NONCQ, },
{ "SAMSUNG HD401LJ", "ZZ100-15", ATA_HORKAGE_NONCQ, },
+ { "HDS724040KLSA80", "KFAOA20N", ATA_HORKAGE_BROKEN_HPA, },
/* Devices with NCQ limits */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 41978a5..a67bb90 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -303,6 +303,7 @@ enum {
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 */
+ ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */
};
enum hsm_task_states {
-
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