Re: [PATCH] libata: add support for NCQ commands for SG interface

From: Sergei Shtylyov
Date: Sat Oct 17 2015 - 08:01:16 EST


Hello.

On 10/17/2015 2:48 PM, vinayak.kale@xxxxxxxxx wrote:

From: Vinayak Kale <vinayak.kale@xxxxxxxxxxx>

This patch is needed to make NCQ commands with FPDMA protocol value
(eg READ/WRITE FPDMA) work over SCSI Generic (SG) interface.

Signed-off-by: Vinayak Kale <vinayak.kale@xxxxxxxxxxx>
---
drivers/ata/libata-scsi.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0d7f0da..5b0a5ab 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
[...]
@@ -2963,7 +2965,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
tf->hob_lbal = cdb[7];
tf->hob_lbam = cdb[9];
tf->hob_lbah = cdb[11];
- tf->flags |= ATA_TFLAG_LBA48;
+ tf->flags |= (ATA_TFLAG_LBA48 | ATA_TFLAG_LBA);

Parens not needed here.

[...]

MBR, Sergei

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