From 5b844b63ddfb65aef923eaabe0420196fd71dd13 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 14 Jul 2016 09:05:48 +0900 Subject: 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 Signed-off-by: Christoph Hellwig Signed-off-by: Tejun Heo --- include/linux/ata.h | 1 + include/linux/libata.h | 2 ++ 2 files changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ata.h b/include/linux/ata.h index d20b1ee127b0..35857d1f15c8 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -530,6 +530,7 @@ enum ata_tf_protocols { ATA_PROT_PIO, /* PIO data xfer */ ATA_PROT_DMA, /* DMA */ ATA_PROT_NCQ, /* NCQ */ + ATA_PROT_NCQ_NODATA, /* NCQ no data */ ATAPI_PROT_NODATA, /* packet command, no data */ ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ ATAPI_PROT_DMA, /* packet command with special DMA sauce */ diff --git a/include/linux/libata.h b/include/linux/libata.h index 4e5a09c6dc10..1abd6690c776 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -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: -- cgit v1.2.3-71-gd317