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Reply-To: manoj@linux.vnet.ibm.com
Subject: Re: [PATCH] cxl: Increase timeout for detection of AFU mmio hang
References: <1461083664-12283-1-git-send-email-fbarrat@linux.vnet.ibm.com>
To: Frederic Barrat <fbarrat@linux.vnet.ibm.com>, imunsie@au1.ibm.com,
 mikey@neuling.org, linuxppc-dev@lists.ozlabs.org
From: Manoj Kumar <manoj@linux.vnet.ibm.com>
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Date: Wed, 20 Apr 2016 12:39:39 -0500
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Tested-by: Manoj Kumar <manoj@linux.vnet.ibm.com>

On 4/19/2016 11:34 AM, Frederic Barrat wrote:
> PSL designers recommend a larger value for the mmio hang pulse, 256 us
> instead of 1 us. The CAIA architecture states that it needs to be
> smaller than 1/2 of the RTOS timeout set in the PHB for outbound
> non-posted transactions, which is still (easily) the case here.
>
> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
> ---
> Needs to be applied on top of http://patchwork.ozlabs.org/patch/604029/