linux-kernel - RE: [PATCH 4/4] tools/testing/cxl: add firmware update emulation to CXL memdevs

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Date:   Mon, 22 May 2023 20:30:58 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Vishal Verma <vishal.l.verma@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>
CC:     <linux-cxl@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Davidlohr Bueso" <dave@...olabs.net>,
        Russ Weight <russell.h.weight@...el.com>,
        "Vishal Verma" <vishal.l.verma@...el.com>
Subject: RE: [PATCH 4/4] tools/testing/cxl: add firmware update emulation to
 CXL memdevs

Vishal Verma wrote:
> Add emulation for the 'Get FW Info', 'Transfer FW', and 'Activate FW'
> CXL mailbox commands to the cxl_test emulated memdevs to enable
> end-to-end unit testing of a firmware update flow. For now, only
> advertise an 'offline activation' capability as that is all the CXL
> memdev driver currently implements.
> 
> Add some canned values for the serial number fields, and create a
> platform device sysfs knob to calculate the sha256sum of the firmware
> image that was received, so a unit test can compare it with the original
> file that was uploaded.
> 

Looks good.