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authorHannes Reinecke <hare@suse.de>2016-07-14 03:05:48 +0300
committerTejun Heo <tj@kernel.org>2016-07-15 15:08:13 +0300
commit5b844b63ddfb65aef923eaabe0420196fd71dd13 (patch)
tree6bc13465e720117bdeb105fd0e8df481c2fe2711 /drivers/ata
parent5b51ba6178f5502e6ab1bba75e91a365bc4c718b (diff)
downloadlinux-5b844b63ddfb65aef923eaabe0420196fd71dd13.tar.xz
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>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-eh.c3
-rw-r--r--drivers/ata/libata-scsi.c5
-rw-r--r--drivers/ata/sata_dwc_460ex.c2
3 files changed, 8 insertions, 2 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 5688b86b192d..d551378bc60e 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2611,7 +2611,8 @@ static void ata_eh_link_report(struct ata_link *link)
[ATA_PROT_NODATA] = "nodata",
[ATA_PROT_PIO] = "pio",
[ATA_PROT_DMA] = "dma",
- [ATA_PROT_NCQ] = "ncq",
+ [ATA_PROT_NCQ] = "ncq dma",
+ [ATA_PROT_NCQ_NODATA] = "ncq nodata",
[ATAPI_PROT_NODATA] = "nodata",
[ATAPI_PROT_PIO] = "pio",
[ATAPI_PROT_DMA] = "dma",
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0447a391fb7a..901b46a6e993 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3082,6 +3082,9 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
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;
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 00c2af1d211b..fa1530a9dc03 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -290,6 +290,8 @@ static const char *get_prot_descript(u8 protocol)
return "ATA DMA";
case ATA_PROT_NCQ:
return "ATA NCQ";
+ case ATA_PROT_NCQ_NODATA:
+ return "ATA NCQ no data";
case ATAPI_PROT_NODATA:
return "ATAPI no data";
case ATAPI_PROT_PIO: