Re: [PATCH 7/9] PCIe, AER, add aer_recover_queue
From: Jesse Barnes
Date: Thu Jun 02 2011 - 11:12:47 EST
On Tue, 17 May 2011 16:08:37 +0800
Huang Ying <ying.huang@xxxxxxxxx> 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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