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ata: Handle ATA NCQ NO-DATA commands correctly

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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>
This commit is contained in:
Hannes Reinecke 2016-07-14 09:05:48 +09:00 • committed by Tejun Heo
commit 5b844b63dd
6 changed files with 12 additions and 2 deletions
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2
include/linux/libata.h
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@ -1053,6 +1053,8 @@ static inline unsigned int ata_prot_flags(u8 prot)
return ATA_PROT_FLAG_DMA;
case ATA_PROT_NCQ:
return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ;
case ATA_PROT_NCQ_NODATA:
return ATA_PROT_FLAG_NCQ;
case ATAPI_PROT_NODATA:
return ATA_PROT_FLAG_ATAPI;
case ATAPI_PROT_PIO: