Re: fix ATAPI support for libsas drivers

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On 6/18/20 5:28 PM, Christoph Hellwig wrote:
On Thu, Jun 18, 2020 at 10:02:58AM +0100, John Garry wrote:
On 15/06/2020 07:46, Christoph Hellwig wrote:
Hi all,

this series fixes the ATAPI DMA drain refactoring for SAS HBAs that
use libsas.
.


Something I meant to ask before and was curious about, specifically since
ipr doesn't actually use libsas: Why not wire up other SAS HBAs, like
megaraid_sas?

megaraid_sas and mpt3sas don't use the libata code at all.  ipr actually
is a special case and uses libata directly instead of libsas (something
I hadn't realized, but which doesn't change anything for the patches
itself, just possibly the commit log).

More to the point, megaraid_sas and mpt3sas have their own SATL in firmware so there is no need to use libata here.

Cheers,

Hannes
--
Dr. Hannes Reinecke            Teamlead Storage & Networking
hare@xxxxxxx                               +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer



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