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

From: Tejun Heo
Date: Fri Oct 23 2015 - 01:39:59 EST


Hello,

On Fri, Oct 23, 2015 at 10:01:35AM +0530, Vinayak Kale wrote:
> > It looks like it'd work given that it's forcing qc->tag into
> > tf->nsect. What's the use case tho?
>
> We need to issue NCQ commands with priority bit from user space application.
>
> BTW, Sergei Shtylyov raised concern regarding usefulness of adding
> ATA_TFLAG_LBA to tf->flags. Can you please comment on that as well?
> Accordingly I will either keep it or discard it in V2. Thanks.

I like the change but can you please put that in a separate patch?
Also, can you please verify that this works fine with multiple regular
NCQ commands in flight?

Thanks.

--
tejun
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