linux-kernel - Re: arm scsi drivers

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Date:   Fri, 27 Aug 2021 17:23:50 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>,
        John Garry <john.garry@...wei.com>
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Hannes Reinecke <hare@...e.com>,
        Christoph Hellwig <hch@....de>,
        Bart Van Assche <bvanassche@....org>,
        Arnd Bergmann <arnd@...db.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: arm scsi drivers

On 8/27/21 5:09 PM, Russell King (Oracle) wrote:
> I haven't, sorry.
> 
> I have run 5.x kernels on the hardware, and do have a set of patches
> kicking around for the SCSI drivers that do some cleanups. It looks
> like the fixup is pretty simple from the links you've sent - using
> scsi_cmd_to_rq() to get the tag.
> 
> That said, I think I may only had one SCSI drive that came anywhere
> close to supported tagged queuing, so I never put much effort into
> tagged command support. Both acornscsi and fas216 have it disabled
> for this reason, so it's probably easier just to rip the tag code
> out of these drivers.
> 
That's what I figured, too.
And that's what my patches do, killing the tag support from arm drivers 
which had them disabled since the dawn of git history.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@...e.de                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
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