netdev - Re: [PATCH v19 08/22] cxl: Support dpa initialization without a mailbox

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251007142200.00007840@huawei.com>
Date: Tue, 7 Oct 2025 14:22:00 +0100
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: <alejandro.lucero-palau@....com>
CC: <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>, Alejandro Lucero <alucerop@....com>, Ben Cheatham
	<benjamin.cheatham@....com>
Subject: Re: [PATCH v19 08/22] cxl: Support dpa initialization without a
 mailbox

On Mon, 6 Oct 2025 11:01:16 +0100
<alejandro.lucero-palau@....com> wrote:

> From: Alejandro Lucero <alucerop@....com>

I think this also needs to mention sfc in the patch title as we'll
need an appropriate RB/Ack for that part.

Lazy option would be
cxl/sfc: Support dpa initialization without a mailbox

but there are probably better options.

> 
> Type3 relies on mailbox CXL_MBOX_OP_IDENTIFY command for initializing
> memdev state params which end up being used for DPA initialization.
> 
> Allow a Type2 driver to initialize DPA simply by giving the size of its
> volatile hardware partition.
> 
> Move related functions to memdev.
> 
> Add sfc driver as the client.
> 
> Signed-off-by: Alejandro Lucero <alucerop@....com>
> Reviewed-by: Dan Williams <dan.j.williams@...el.com>
> Reviewed-by: Dave Jiang <dave.jiang@...el.com>
> Reviewed-by: Ben Cheatham <benjamin.cheatham@....com>