diff options
| author | Jens Axboe <axboe@suse.de> | 2006-01-30 16:09:35 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-01-30 16:09:35 +0100 |
| commit | 48bdc8ec4aa2ca04e339bf5c3a47677d8dd00bb6 (patch) | |
| tree | 6d268b950e95128be9deaf667e2bb661d42cc12b | |
| parent | dfcd77d16b5745fbfea7d5636f15fc80cc05fef8 (diff) | |
[LIBATA] Blacklist certain Maxtor firmware revisions for FUA support
It looks like they are either discarding or corrupting data when the FUA
command is used, bad.
Signed-off-by: Jens Axboe <axboe@suse.de>
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index cfbceb50471..07b1e7cc61d 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -1700,6 +1700,31 @@ static unsigned int ata_msense_rw_recovery(u8 **ptr_io, const u8 *last) return sizeof(def_rw_recovery_mpage); } +/* + * We can turn this into a real blacklist if it's needed, for now just + * blacklist any Maxtor BANC1G10 revision firmware + */ +static int ata_dev_supports_fua(u16 *id) +{ + unsigned char model[41], fw[9]; + + if (!ata_id_has_fua(id)) + return 0; + + model[40] = '\0'; + fw[8] = '\0'; + + ata_dev_id_string(id, model, ATA_ID_PROD_OFS, sizeof(model) - 1); + ata_dev_id_string(id, fw, ATA_ID_FW_REV_OFS, sizeof(fw) - 1); + + if (strncmp(model, "Maxtor", 6)) + return 1; + if (strncmp(fw, "BANC1G10", 8)) + return 1; + + return 0; /* blacklisted */ +} + /** * ata_scsiop_mode_sense - Simulate MODE SENSE 6, 10 commands * @args: device IDENTIFY data / SCSI command of interest. @@ -1797,7 +1822,7 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, return 0; dpofua = 0; - if (ata_id_has_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 && + if (ata_dev_supports_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 && (!(dev->flags & ATA_DFLAG_PIO) || dev->multi_count)) dpofua = 1 << 4; |