From: Mike Qiu <qiudayu@linux.vnet.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: aik@ozlabs.ru, linuxppc-dev@lists.ozlabs.org,
Gavin Shan <gwshan@linux.vnet.ibm.com>,
kvm-ppc@vger.kernel.org, agraf@suse.de
Subject: Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection
Date: Mon, 21 Jul 2014 08:06:33 +0000 [thread overview]
Message-ID: <53CCCA09.1060404@linux.vnet.ibm.com> (raw)
In-Reply-To: <1403666349.4587.196.camel@pasglop>
On 06/25/2014 11:19 AM, Benjamin Herrenschmidt wrote:
> On Wed, 2014-06-25 at 11:05 +0800, Mike Qiu wrote:
>> Here maybe "/sys/kernel/debug/powerpc/errinjct" is better, because
>> it
>> will supply "PCI_domain_nr" in parameters, so no need supply errinjct
>> for each PCI domain.
>>
>> Another reason is error inject not only for PCI(in future), so better
>> not in PCI domain entry.
>>
>> Also it simple for userland tools to has a fixed path.
> I don't like this. I much prefer have dedicated error injection files
> in their respective locations, something for PCI under the corresponding
> PCI bridge etc...
So PowerNV error injection will be designed rely on debugfs been
configured, right?
Thanks,
Mike
>
> Cheers,
> Ben.
>
>
>
>
WARNING: multiple messages have this Message-ID (diff)
From: Mike Qiu <qiudayu@linux.vnet.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: aik@ozlabs.ru, linuxppc-dev@lists.ozlabs.org,
Gavin Shan <gwshan@linux.vnet.ibm.com>,
kvm-ppc@vger.kernel.org, agraf@suse.de
Subject: Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection
Date: Mon, 21 Jul 2014 16:06:33 +0800 [thread overview]
Message-ID: <53CCCA09.1060404@linux.vnet.ibm.com> (raw)
In-Reply-To: <1403666349.4587.196.camel@pasglop>
On 06/25/2014 11:19 AM, Benjamin Herrenschmidt wrote:
> On Wed, 2014-06-25 at 11:05 +0800, Mike Qiu wrote:
>> Here maybe "/sys/kernel/debug/powerpc/errinjct" is better, because
>> it
>> will supply "PCI_domain_nr" in parameters, so no need supply errinjct
>> for each PCI domain.
>>
>> Another reason is error inject not only for PCI(in future), so better
>> not in PCI domain entry.
>>
>> Also it simple for userland tools to has a fixed path.
> I don't like this. I much prefer have dedicated error injection files
> in their respective locations, something for PCI under the corresponding
> PCI bridge etc...
So PowerNV error injection will be designed rely on debugfs been
configured, right?
Thanks,
Mike
>
> Cheers,
> Ben.
>
>
>
>
next prev parent reply other threads:[~2014-07-21 8:06 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-23 2:14 [PATCH v1 0/3] Support PCI Error Injection Gavin Shan
2014-06-23 2:14 ` Gavin Shan
2014-06-23 2:14 ` [PATCH v1 1/3] powerpc/powernv: Sync header with firmware Gavin Shan
2014-06-23 2:14 ` Gavin Shan
2014-06-23 21:10 ` Benjamin Herrenschmidt
2014-06-23 21:10 ` Benjamin Herrenschmidt
2014-06-23 23:44 ` Gavin Shan
2014-06-23 23:44 ` Gavin Shan
2014-06-23 23:50 ` Benjamin Herrenschmidt
2014-06-23 23:50 ` Benjamin Herrenschmidt
2014-06-23 2:14 ` [PATCH v1 2/3] powerpc/powernv: Support PCI error injection Gavin Shan
2014-06-23 2:14 ` Gavin Shan
2014-06-23 6:36 ` Michael Neuling
2014-06-23 6:36 ` Michael Neuling
2014-06-25 0:05 ` Gavin Shan
2014-06-25 0:05 ` Gavin Shan
2014-06-26 4:48 ` Stewart Smith
2014-06-26 4:48 ` Stewart Smith
2014-06-23 21:05 ` Benjamin Herrenschmidt
2014-06-23 21:05 ` Benjamin Herrenschmidt
2014-06-24 6:18 ` Mike Qiu
2014-06-24 6:18 ` Mike Qiu
2014-06-24 6:36 ` Benjamin Herrenschmidt
2014-06-24 6:36 ` Benjamin Herrenschmidt
2014-06-24 6:57 ` Mike Qiu
2014-06-24 6:57 ` Mike Qiu
2014-06-24 7:00 ` Benjamin Herrenschmidt
2014-06-24 7:00 ` Benjamin Herrenschmidt
2014-06-25 0:03 ` Gavin Shan
2014-06-25 0:03 ` Gavin Shan
2014-06-25 3:05 ` Mike Qiu
2014-06-25 3:05 ` Mike Qiu
2014-06-25 3:19 ` Benjamin Herrenschmidt
2014-06-25 3:19 ` Benjamin Herrenschmidt
2014-07-21 8:06 ` Mike Qiu [this message]
2014-07-21 8:06 ` Mike Qiu
2014-07-21 22:49 ` Benjamin Herrenschmidt
2014-07-21 22:49 ` Benjamin Herrenschmidt
2014-07-22 3:10 ` Mike Qiu
2014-07-22 3:10 ` Mike Qiu
2014-07-22 3:21 ` Benjamin Herrenschmidt
2014-07-22 3:21 ` Benjamin Herrenschmidt
2014-07-22 3:26 ` Gavin Shan
2014-07-22 3:26 ` Gavin Shan
2014-07-22 4:00 ` Mike Qiu
2014-07-22 4:00 ` Mike Qiu
2014-06-26 4:52 ` Stewart Smith
2014-06-26 4:52 ` Stewart Smith
2014-06-23 2:14 ` [PATCH v1 3/3] powerpc/powernv: Clear PAPR error injection registers Gavin Shan
2014-06-23 2:14 ` Gavin Shan
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