linux-kernel - Re: another pmem variant

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Date:	Wed, 25 Mar 2015 15:02:42 -0600
From:	Ross Zwisler <ross.zwisler@...ux.intel.com>
To:	Christoph Hellwig <hch@....de>
Cc:	linux-nvdimm@...1.01.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, x86@...nel.org, boaz@...xistor.com,
	axboe@...nel.dk
Subject: Re: another pmem variant

On Wed, 2015-03-25 at 17:04 +0100, Christoph Hellwig wrote:
> Here is another version of the same trivial pmem driver, because two
> obviously aren't enough.  The first patch is the same pmem driver
> that Ross posted a short time ago, just modified to use platform_devices
> to find the persistant memory region instead of hardconding it in the
> Kconfig.  This allows to keep pmem.c separate from any discovery mechanism,
> but still allow auto-discovery.
> 
> The other two patches are a heavily rewritten version of the code that
> Intel gave to various storage vendors to discover the type 12 (and earlier
> type 6) nvdimms, which I massaged into a form that is hopefully suitable
> for mainline.
> 
> Note that pmem.c really is the minimal version as I think we need something
> included ASAP.  We'll eventually need to be able to do other I/O from and
> to it, and as most people know everyone has their own preferre method to
> do it, which I'd like to discuss once we have the basic driver in.
> 
> This has been tested both with a real NVDIMM on a system with a type 12
> capable bios, as well as with "fake persistent" memory using the memmap=
> option.
> 

For the series:
Tested-by: Ross Zwisler <ross.zwisler@...ux.intel.com>

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