linux-kernel - Re: [PATCH 7/9] PCIe, AER, add aer_recover

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Message-ID: <20110602080539.52bb6d89@jbarnes-desktop>
Date:	Thu, 2 Jun 2011 08:05:39 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Tony Luck <tony.luck@...el.com>, linux-acpi@...r.kernel.org,
	Zhang Yanmin <yanmin.zhang@...el.com>
Subject: Re: [PATCH 7/9] PCIe, AER, add aer_recover_queue

On Tue, 17 May 2011 16:08:37 +0800
Huang Ying <ying.huang@...el.com> wrote:

> In addition to native PCIe AER, now APEI (ACPI Platform Error
> Interface) GHES (Generic Hardware Error Source) can be used to report
> PCIe AER errors too.  To add support to APEI GHES PCIe AER recovery,
> aer_recover_queue is added to export the recovery function in native
> PCIe AER driver.
> 
> Recoverable PCIe AER errors are reported via NMI in APEI GHES.  Then
> APEI GHES uses irq_work to delay the error processing into an IRQ
> handler.  But PCIe AER recovery can be very time-consuming, so
> aer_recover_queue, which can be used in IRQ handler, delays the real
> recovery action into the process context, that is, work queue.

Applied to linux-next, thanks.

-- 
Jesse Barnes, Intel Open Source Technology Center
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