linux-kernel - Re: [PATCH 3/3] e820: Add the unknown-12 Memory type (DDR3-NvDIMM)

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Message-ID: <CALCETrUeaMHmv+nbDcd1eVJ4GStYUuaS9BSAqwRtCHmQnPhg8A@mail.gmail.com>
Date:	Mon, 9 Mar 2015 08:14:57 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Boaz Harrosh <boaz@...xistor.com>, Ingo Molnar <mingo@...hat.com>,
	X86 ML <x86@...nel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Roger C. Pao" <rcpao.enmotus@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-nvdimm <linux-nvdimm@...ts.01.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Christoph Hellwig <hch@...radead.org>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>
Subject: Re: [PATCH 3/3] e820: Add the unknown-12 Memory type (DDR3-NvDIMM)

On Mon, Mar 9, 2015 at 7:44 AM, Dan Williams <dan.j.williams@...el.com> wrote:
> On Mon, Mar 9, 2015 at 7:19 AM, Boaz Harrosh <boaz@...xistor.com> wrote:
>> On 03/05/2015 10:56 PM, Dan Williams wrote:
> [..]
>>> It's not "politics".  Setting standards takes time and the platforms
>>> in question simply jumped the gun to enable a proof-of-concept.
>>>
>>
>> So ye, but once you have 100,000 devices out there, then the dichotomy
>> between standards-takes-time vs proof-of-concept, becomes politics.
>
> Ok.
>
> ...although, I have a question about this "100,000 devices" you quote.
> What's not clear to me is how many platforms are shipping with
> type-12.  Certainly there are very many NVDIMMs on the market, but
> which off-the-shelf systems can one obtain that include type-12
> support?  Not that it would change the disposition of this patch, if
> platforms are in the field they're "in the field!", just clarifying
> that "100,000 devices" is NVDIMMs not type-12 platforms, right?

This is a type-12 platform:

http://www.supermicro.com/products/motherboard/Xeon/C600/X9DRH-iF-NV.cfm

You can order one online, for example:

http://www.acmemicro.com/Product/11926/Supermicro+X9DRH-iF-NV-O+Server+Board+DP+Xeon+E5-2600+LGA2011+DDR3+SATA3+RAID+IPMI+GbE+PCIe+ATX+MBD-X9DRH-iF-NV

--Andy
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