From: Shin'ichiro Kawasaki shinichiro.kawasaki@wdc.com
commit ea045fd344cb15c164e9ffc8b8cffb6883df8475 upstream.
SAT SCSI/ATA Translation specification requires SCSI SYNCHRONIZE CACHE (10) and (16) commands both shall be translated to ATA flush command. Also, ZBC Zoned Block Commands specification mandates SYNCHRONIZE CACHE (16) command support. However, libata translates only SYNCHRONIZE CACHE (10). This results in SYNCHRONIZE CACHE (16) command failures on SATA drives and then libata translation does not conform to ZBC. To avoid the failure, add support for SYNCHRONIZE CACHE (16).
Signed-off-by: Shin'ichiro Kawasaki shinichiro.kawasaki@wdc.com Cc: stable@vger.kernel.org Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/libata-scsi.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3303,6 +3303,7 @@ static unsigned int ata_scsiop_maint_in( case REPORT_LUNS: case REQUEST_SENSE: case SYNCHRONIZE_CACHE: + case SYNCHRONIZE_CACHE_16: case REZERO_UNIT: case SEEK_6: case SEEK_10: @@ -3969,6 +3970,7 @@ static inline ata_xlat_func_t ata_get_xl return ata_scsi_write_same_xlat;
case SYNCHRONIZE_CACHE: + case SYNCHRONIZE_CACHE_16: if (ata_try_flush_cache(dev)) return ata_scsi_flush_xlat; break; @@ -4215,6 +4217,7 @@ void ata_scsi_simulate(struct ata_device * turning this into a no-op. */ case SYNCHRONIZE_CACHE: + case SYNCHRONIZE_CACHE_16: fallthrough;
/* no-op's, complete with success */