linux-kernel - Re: [PATCH 11/11] EDAC/ghes: Create one memory controller per physical memory array

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Date:   Wed, 18 Mar 2020 01:10:39 +0100
From:   Robert Richter <rrichter@...vell.com>
To:     "Kani, Toshi" <toshi.kani@....com>
CC:     Borislav Petkov <bp@...en8.de>, John Garry <john.garry@...wei.com>,
        "Mauro Carvalho Chehab" <mchehab@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        "James Morse" <james.morse@....com>,
        Aristeu Rozanski <aris@...hat.com>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Xiaofei Tan <tanxiaofei@...wei.com>,
        Shiju Jose <shiju.jose@...wei.com>
Subject: Re: [PATCH 11/11] EDAC/ghes: Create one memory controller per
 physical memory array

On 17.03.20 22:53:09, Kani, Toshi wrote:
> > On Tue, Mar 17, 2020 at 10:14:46PM +0000, Kani, Toshi wrote:
> > > > > This is all fine and good but that change affects the one x86
> > > > > platform we support so the whole patchset should be tested there
> > > > > too. Adding Toshi.
> > >
> > > Thanks for the heads-up.  I do not have an access to a test system at
> > > the moment, but am checking my colleague to do the test.
> > 
> > Thx but hold that off for now - Robert is reworking the set.

It would still be good to have a test run as the general concept wont
change and we will then early see potential issues, especially wrt
SMBIOS/DMI.

It would esp. be interesting to see how the node mapping reflects the
memory topology:

# grep . /sys/devices/system/edac/mc/mc*/dimm*/dimm_label
/sys/devices/system/edac/mc/mc0/dimm0/dimm_label:N0 DIMM_A0
/sys/devices/system/edac/mc/mc0/dimm1/dimm_label:N0 DIMM_B0
/sys/devices/system/edac/mc/mc0/dimm2/dimm_label:N0 DIMM_C0
/sys/devices/system/edac/mc/mc0/dimm3/dimm_label:N0 DIMM_D0
/sys/devices/system/edac/mc/mc0/dimm4/dimm_label:N0 DIMM_E0
/sys/devices/system/edac/mc/mc0/dimm5/dimm_label:N0 DIMM_F0
/sys/devices/system/edac/mc/mc0/dimm6/dimm_label:N0 DIMM_G0
/sys/devices/system/edac/mc/mc0/dimm7/dimm_label:N0 DIMM_H0
/sys/devices/system/edac/mc/mc1/dimm0/dimm_label:N1 DIMM_I0
/sys/devices/system/edac/mc/mc1/dimm1/dimm_label:N1 DIMM_J0
/sys/devices/system/edac/mc/mc1/dimm2/dimm_label:N1 DIMM_K0
/sys/devices/system/edac/mc/mc1/dimm3/dimm_label:N1 DIMM_L0
/sys/devices/system/edac/mc/mc1/dimm4/dimm_label:N1 DIMM_M0
/sys/devices/system/edac/mc/mc1/dimm5/dimm_label:N1 DIMM_N0
/sys/devices/system/edac/mc/mc1/dimm6/dimm_label:N1 DIMM_O0
/sys/devices/system/edac/mc/mc1/dimm7/dimm_label:N1 DIMM_P0

Thanks,

-Robert