netdev - Re: [PATCH v11 19/23] cxl: add region flag for precluding a device memory to be used for dax

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Message-ID: <1cf1354c-a0ec-4096-a693-22168acbf51f@amd.com>
Date: Tue, 11 Mar 2025 15:06:39 -0500
From: Ben Cheatham <benjamin.cheatham@....com>
To: <alejandro.lucero-palau@....com>
CC: Zhi Wang <zhiw@...dia.com>, Jonathan Cameron
	<Jonathan.Cameron@...wei.com>, <linux-cxl@...r.kernel.org>,
	<netdev@...r.kernel.org>, <dan.j.williams@...el.com>, <edward.cree@....com>,
	<davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<edumazet@...gle.com>, <dave.jiang@...el.com>, <benjamin.cheatham@....com>
Subject: Re: [PATCH v11 19/23] cxl: add region flag for precluding a device
 memory to be used for dax

On 3/10/25 4:03 PM, alejandro.lucero-palau@....com wrote:
> From: Alejandro Lucero <alucerop@....com>
> 
> By definition a type2 cxl device will use the host managed memory for
> specific functionality, therefore it should not be available to other
> uses. However, a dax interface could be just good enough in some cases.
> 
> Add a flag to a cxl region for specifically state to not create a dax
> device. Allow a Type2 driver to set that flag at region creation time.
> 
> Signed-off-by: Alejandro Lucero <alucerop@....com>
> Reviewed-by: Zhi Wang <zhiw@...dia.com>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> ---

Reviewed-by: Ben Cheatham <benjamin.cheatham@....com>