diff options
| -rw-r--r-- | drivers/ata/libata-scsi.c | 3 | ||||
| -rw-r--r-- | drivers/ata/libata-transport.c | 2 | ||||
| -rw-r--r-- | include/linux/libata.h | 2 |
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 3131adcc1f87..641a61a59e89 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2568,7 +2568,8 @@ static unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf) rbuf[14] = (lowest_aligned >> 8) & 0x3f; rbuf[15] = lowest_aligned; - if (ata_id_has_trim(args->id)) { + if (ata_id_has_trim(args->id) && + !(dev->horkage & ATA_HORKAGE_NOTRIM)) { rbuf[14] |= 0x80; /* LBPME */ if (ata_id_has_zero_after_trim(args->id) && diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index d6c37bcd416d..e2d94972962d 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -569,6 +569,8 @@ show_ata_dev_trim(struct device *dev, if (!ata_id_has_trim(ata_dev->id)) mode = "unsupported"; + else if (ata_dev->horkage & ATA_HORKAGE_NOTRIM) + mode = "forced_unsupported"; else if (ata_dev->horkage & ATA_HORKAGE_NO_NCQ_TRIM) mode = "forced_unqueued"; else if (ata_fpdma_dsm_supported(ata_dev)) diff --git a/include/linux/libata.h b/include/linux/libata.h index 36ce37bcc963..5c8bac6225a6 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -431,6 +431,8 @@ enum { ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ ATA_HORKAGE_NO_NCQ_LOG = (1 << 23), /* don't use NCQ for log read */ + ATA_HORKAGE_NOTRIM = (1 << 24), /* don't use TRIM */ + /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |