netdev - Re: [PATCH] mlx4: Add support for EEH error recovery

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Message-ID: <500ED6E4.60909@mellanox.com>
Date:	Tue, 24 Jul 2012 20:09:56 +0300
From:	Shlomo Pongartz <shlomop@...lanox.com>
To:	Kleber Sacilotto de Souza <klebers@...ux.vnet.ibm.com>
CC:	Or Gerlitz <or.gerlitz@...il.com>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>,
	<jackm@....mellanox.co.il>, <yevgenyp@...lanox.co.il>,
	<cascardo@...ux.vnet.ibm.com>, <brking@...ux.vnet.ibm.com>
Subject: Re: [PATCH] mlx4: Add support for EEH error recovery

On 7/24/2012 4:12 PM, Kleber Sacilotto de Souza wrote:
> On 07/23/2012 06:26 PM, Or Gerlitz wrote:
>
>> Kleber Sacilotto de Souza <klebers@...ux.vnet.ibm.com> wrote:
>>>> For powerpc we have an IBM internal user space tool that injects the
>>>> error on the bus with the aid of the system firmware. The kernel used
>>>> was built with the option:
>>>> CONFIG_EEH=y
>>>> and without the AER options. I will run some more tests with the AER
>>>> options activated.
>>> I tested the powerpc error injection with
>>>
>>> CONFIG_EEH=y
>>> CONFIG_PCIEAER=y
>>> CONFIG_PCIEAER_INJECT=m
>>>
>>> and with the aer_inject module loaded and it didn't affect the EEH
>>> recovery, the adapter recovered as expected.
>> I wasn't sure to follow what did you mean by "it didn't affect the EEH
>> recovery", how did you use the aer_inject module, is that through
>> user-space tool which is available for us?
>
> I wanted to say that I was testing before only with the EEH option
> activated, then I activated the AER options on my powerpc system just to
> make sure these options when activate wouldn't affect the EEH recovery.
> I haven't injected and AER error since I don't have a system with
> hardware support for it.
>
>
> Thanks,

Hi

Using a special extender card I've powered down the card.
None of the callbacks were called (I added printks to be sure).
Shouldn't one on the callbacks be called?

Shlomo Pongratz.
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