ata: Handle ATA NCQ NO-DATA commands correctly
Add a new taskfile protocol ATA_PROT_NCQ_NODATA to handle
ATA NCQ NO-DATA commands correctly.
And fixup ata_scsi_zbc_out_xlat() to use it.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0447a39..901b46a 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3082,6 +3082,9 @@
goto invalid_fld;
}
+ if (ata_is_ncq(tf->protocol) && (cdb[2] & 0x3) == 0)
+ tf->protocol = ATA_PROT_NCQ_NODATA;
+
/* enable LBA */
tf->flags |= ATA_TFLAG_LBA;
@@ -3548,7 +3551,7 @@
if (ata_ncq_enabled(qc->dev) &&
ata_fpdma_zac_mgmt_out_supported(qc->dev)) {
- tf->protocol = ATA_PROT_NCQ;
+ tf->protocol = ATA_PROT_NCQ_NODATA;
tf->command = ATA_CMD_NCQ_NON_DATA;
tf->hob_nsect = ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT;
tf->nsect = qc->tag << 3;