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 <htejun@xxxxxxxxx> Cc: Quel Qun <kelk1@xxxxxxxxxxx> Cc: Luiz Fernando N. Capitulino <lcapitulino@xxxxxxxxxxxxxxx> --- 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 { - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html