linux-kernel - Re: [PATCH 3/3] ie31200

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Date:	Wed, 9 Apr 2014 13:35:52 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Jason Baron <jbaron@...mai.com>
Cc:	tony.luck@...el.com, hpa@...or.com, mingo@...nel.org,
	dougthompson@...ssion.com, m.chehab@...sung.com,
	mitake@....info.waseda.ac.jp, linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] ie31200_edac: Add driver

On Fri, Apr 04, 2014 at 09:14:04PM +0000, Jason Baron wrote:
> Add 'ie31200_edac' driver for the E3-1200 series of Intel processors. Driver
> is based on the following E3-1200 specs:
> 
> http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html
> http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200v3-vol-2-datasheet.html
> 
> I've tested this on bad memory hardware, and observed correlating bad reads
> and uncorrected memory errors as reported by the driver.
> 
> Signed-off-by: Jason Baron <jbaron@...mai.com>
> ---
>  drivers/edac/Kconfig        |   7 +
>  drivers/edac/Makefile       |   1 +
>  drivers/edac/ie31200_edac.c | 540 ++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 548 insertions(+)
>  create mode 100644 drivers/edac/ie31200_edac.c
> 
> diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
> index 878f090..27f44a1 100644
> --- a/drivers/edac/Kconfig
> +++ b/drivers/edac/Kconfig
> @@ -186,6 +186,13 @@ config EDAC_I3200
>  	  Support for error detection and correction on the Intel
>  	  3200 and 3210 server chipsets.
>  
> +config EDAC_IE31200
> +	tristate "Intel e312xx"
> +	depends on EDAC_MM_EDAC && PCI && X86
> +	help
> +	  Support for error detection and correction on the Intel
> +	  E3-1200 processor.
> +
>  config EDAC_X38
>  	tristate "Intel X38"
>  	depends on EDAC_MM_EDAC && PCI && X86
> diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile
> index 4154ed6..c479a24 100644
> --- a/drivers/edac/Makefile
> +++ b/drivers/edac/Makefile
> @@ -37,6 +37,7 @@ obj-$(CONFIG_EDAC_I82875P)		+= i82875p_edac.o
>  obj-$(CONFIG_EDAC_I82975X)		+= i82975x_edac.o
>  obj-$(CONFIG_EDAC_I3000)		+= i3000_edac.o
>  obj-$(CONFIG_EDAC_I3200)		+= i3200_edac.o
> +obj-$(CONFIG_EDAC_IE31200)		+= ie31200_edac.o
>  obj-$(CONFIG_EDAC_X38)			+= x38_edac.o
>  obj-$(CONFIG_EDAC_I82860)		+= i82860_edac.o
>  obj-$(CONFIG_EDAC_R82600)		+= r82600_edac.o
> diff --git a/drivers/edac/ie31200_edac.c b/drivers/edac/ie31200_edac.c
> new file mode 100644
> index 0000000..ae03d21
> --- /dev/null
> +++ b/drivers/edac/ie31200_edac.c
> @@ -0,0 +1,540 @@
> +/*
> + * Intel E3-1200
> + * Copyright (C) 2014 Jason Baron <jbaron@...mai.com>
> + *
> + * Support for the E3-1200 processor family. Heavily based on previous
> + * Intel EDAC drivers.

Btw, remind me again why this isn't part of the sb_edac? AFAICT, the
e3-12xx thing is a Sandybridge, right?

Why not put it into sb_edac - it is small enough and if you're lucky,
you might even share functionality?

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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