linux-kernel - Re: [PATCH 3/4] PCI: PCIE AER: PCIE AER software error injection

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Date:	Tue, 28 Apr 2009 15:40:55 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 3/4] PCI: PCIE AER: PCIE AER software error injection

Hi, All,

The PCIE AER software error injection user space tool has been put in:

http://www.kernel.org/pub/linux/utils/pci/aer-inject/

This is the final place. I will change description in success version of
patches.

Best Regards,
Huang Ying

On Fri, 2009-04-24 at 12:32 +0800, Kenji Kaneshige wrote:
> Huang Ying wrote:
> > Debugging PCIE AER code can be very difficult because it is hard to
> > trigger various real hardware errors. This patch provide a software
> > based error injection tool, which can fake various PCIE errors with a
> > user space helper tool named "aer-inject". Which can be gotten from:
> > 
> >   http://www.kernel.org/pub/linux/kernel/people/yhuang/
> > 
> > The patch fakes AER error by faking some PCIE AER related registers
> > and an AER interrupt for specified the PCIE device.
> > 
> > Signed-off-by: Huang Ying <ying.huang@...el.com>
> > 
> > ---
> >  drivers/pci/pcie/aer/Kconfig       |    2 
> >  drivers/pci/pcie/aer/Kconfig.debug |   18 +
> >  drivers/pci/pcie/aer/Makefile      |    1 
> >  drivers/pci/pcie/aer/aer_inject.c  |  472 +++++++++++++++++++++++++++++++++++++
> >  4 files changed, 493 insertions(+)
> > 
> > --- /dev/null
> > +++ b/drivers/pci/pcie/aer/aer_inject.c
> > @@ -0,0 +1,472 @@
> > +/*
> > + * PCIE AER software error injection support.
> > + *
> > + * Debuging PCIE AER code is quite difficult because it is hard to
> > + * trigger various real hardware errors. Software based error
> > + * injection can fake almost all kinds of errors with the help of a
> > + * user space helper tool aer-inject, which can be gotten from:
> > + *   http://www.kernel.org/pub/utils/pcie/aer-inject
> 
> Shouldn't it be 
> 
> http://www.kernel.org/pub/linux/kernel/people/yhuang/
> 
> ?
> 
> (snip.)
> 
> > --- /dev/null
> > +++ b/drivers/pci/pcie/aer/Kconfig.debug
> > @@ -0,0 +1,18 @@
> > +#
> > +# PCI Express Root Port Device AER Debug Configuration
> > +#
> > +
> > +config PCIEAER_INJECT
> > +	tristate "PCIE AER error injector support"
> > +	depends on PCIEAER
> > +	default n
> > +	help
> > +	  This enables PCI Express Root Port Advanced Error Reporting
> > +	  (AER) software error injector.
> > +
> > +	  Debuging PCIE AER code is quite difficult because it is hard
> > +	  to trigger various real hardware errors. Software based
> > +	  error injection can fake almost all kinds of errors with the
> > +	  help of a user space helper tool aer-inject, which can be
> > +	  gotten from:
> > +	     http://www.kernel.org/pub/utils/pcie/aer-inject
> > 
> 
> Ditto.
> 
> Thanks,
> Kenji Kaneshige
> 

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