From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomas Henzl <thenzl@redhat.com>
Subject: Re: [PATCH v6 27/37] cxlflash: Fix to prevent stale AFU RRQ
Date: Fri, 23 Oct 2015 15:55:26 +0200
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To: "Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>, linux-scsi@vger.kernel.org, James Bottomley <James.Bottomley@HansenPartnership.com>, "Nicholas A. Bellinger" <nab@linux-iscsi.org>, Brian King <brking@linux.vnet.ibm.com>, Ian Munsie <imunsie@au1.ibm.com>, Daniel Axtens <dja@ozlabs.au.ibm.com>, Andrew Donnellan <andrew.donnellan@au1.ibm.com>, David Laight <David.Laight@ACULAB.COM>
Cc: Michael Neuling <mikey@neuling.org>, "Manoj N. Kumar" <manoj@linux.vnet.ibm.com>, linuxppc-dev@lists.ozlabs.org

On 21.10.2015 22:15, Matthew R. Ochs wrote:
> Following an adapter reset, the AFU RRQ that resides in host memory
> holds stale data. This can lead to a condition where the RRQ interrupt
> handler tries to process stale entries and/or endlessly loops due to an
> out of sync generation bit.
>
> To fix, the AFU RRQ in host memory needs to be cleared after each reset.
>
> Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
> Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
> Reviewed-by: Daniel Axtens <dja@axtens.net>

Reviewed-by: Tomas Henzl <thenzl@redhat.com>

Tomas