linux-kernel - Re: [PATCH 8/8] ACPI / trace: Add trace interface for eMCA driver

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Message-ID: <20131015170039.GF7908@pd.tnic>
Date:	Tue, 15 Oct 2013 19:00:39 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:	"Chen, Gong" <gong.chen@...ux.intel.com>, tony.luck@...el.com,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	m.chehab@...sung.com
Subject: Re: [PATCH 8/8] ACPI / trace: Add trace interface for eMCA driver

On Tue, Oct 15, 2013 at 10:24:35PM +0530, Naveen N. Rao wrote:
> On 2013/10/11 02:32AM, Chen Gong wrote:
> > Use trace interface to elaborate all H/W error related
> > information.
> > 
> > Signed-off-by: Chen, Gong <gong.chen@...ux.intel.com>
> > ---
> <snip>
> > +TRACE_EVENT(extlog_mem_event,
> > +	TP_PROTO(u32 etype,
> > +		char *dimm_loc,
> > +		const uuid_le *fru_id,
> > +		char *fru_text,
> > +		u64 error_count,
> > +		u32 severity,
> > +		u64 phy_addr,
> > +		char *mem_loc),
> 
> [Adding Mauro...]
> 
> This looks very similar to the trace event I wrote a while back,
> which was similar to the one provided by ghes_edac:
> http://thread.gmane.org/gmane.linux.kernel.pci/24616
> 
> Seems to me this has the same issues we previously discussed w.r.t
> EDAC conflicts...

Right, I'm inclined to leave this trace_mc_event in ras_event.h to edac
use alone because of all those layers which don't mean whit for GHES and
eMCA error sources.

And maybe define a trace_mem_event which is shared by GHES and eMCA and
not use the edac tracepoint there not load ghes_edac on such systems
which have sufficient decoding capability in firmware.

Thoughts?

-- 
Regards/Gruss,
    Boris.

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