From: Hannes Reinecke <hare@suse.de>
To: Christoph Hellwig <hch@lst.de>, John Garry <john.garry@huawei.com>
Cc: martin.petersen@oracle.com, brking@us.ibm.com,
jinpu.wang@cloud.ionos.com, mpe@ellerman.id.au,
linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: fix ATAPI support for libsas drivers
Date: Mon, 22 Jun 2020 08:28:14 +0200 [thread overview]
Message-ID: <bed58e53-2019-cbb6-2ebe-93d0e404c90a@suse.de> (raw)
In-Reply-To: <20200618152848.GA30919@lst.de>
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@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
next prev parent reply other threads:[~2020-06-22 14:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 6:46 fix ATAPI support for libsas drivers Christoph Hellwig
2020-06-15 6:46 ` [PATCH 1/2] libata: provide a ata_scsi_dma_need_drain stub for !CONFIG_ATA Christoph Hellwig
2020-06-16 3:46 ` Martin K. Petersen
2020-06-15 6:46 ` [PATCH 2/2] scsi: wire up ata_scsi_dma_need_drain for SAS HBA drivers Christoph Hellwig
2020-06-18 9:02 ` fix ATAPI support for libsas drivers John Garry
2020-06-18 15:28 ` Christoph Hellwig
2020-06-22 6:28 ` Hannes Reinecke [this message]
2020-06-23 11:44 ` John Garry
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