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

From: Vinayak Kale
Date: Sat Oct 17 2015 - 08:26:49 EST


On Sat, Oct 17, 2015 at 5:30 PM, Sergei Shtylyov
<sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:
> 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.
That's quite neat :-) Thanks, will change it in V2.
>
> [...]
>
> MBR, Sergei
>
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