RE: Read Firmware Versions

From: Jayashree D <jayashree-d@hcl.com>
To: Patrick Williams <patrick@stwcx.xyz>,
	"openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>
Cc: "Velumani T-ERS,HCLTech" <velumanit@hcl.com>
Subject: RE: Read Firmware Versions
Date: Tue, 22 Sep 2020 13:34:50 +0000	[thread overview]
Message-ID: <SG2PR04MB3093A25A217B7E1FFD65D8A8E13B0@SG2PR04MB3093.apcprd04.prod.outlook.com> (raw)
In-Reply-To: <20200921152337.GJ6152@heinlein>

Classification: HCL Internal

Thanks Patrick for your response.

In phosphor-bmc-code-mgmt, I am seeing the software image is upgraded and based on the image update, version is updated.
But in my platform, I have to read firmware versions using oem commands and that version should be displayed under dbus objects.
Whether phosphor-bmc-code-mgmt repo will be suitable to display the firmware version using dbus objects?

Regards,
Jayashree

-----Original Message-----
From: Patrick Williams <patrick@stwcx.xyz>
Sent: Monday, September 21, 2020 8:54 PM
To: Jayashree D <jayashree-d@hcl.com>
Cc: openbmc@lists.ozlabs.org; Velumani T-ERS,HCLTech <velumanit@hcl.com>
Subject: Re: Read Firmware Versions

On Mon, Sep 21, 2020 at 02:12:55PM +0000, Jayashree D wrote:
> We are working on a platform which has multi host and each host have firmware versions such as CPLD, ME, BIOS, Bridge IC and VR.
> We have to display it in dbus objects.
> Can you please provide your comments on which dbus objects it will be suitable to store all firmware versions.
>
> Also in phosphor-dbus-interfaces, I am seeing "System.interface.yaml" in /xyz/openbmc_project/Inventory/Item/.
> Whether it will be suitable to store all the firmware versions (/xyz/openbmc_project/Inventory/Item/System/HostN).

All software versions should be modelled per [1].  The sub-section [2] tells how to associate an inventory object to a software version (to show which BIOS version a specific host card is running for example).

I don't think 'Inventory.Item.System' is intended to represent a single host in a multi-host system; 'System' would represent the entire chassis.  You may want to use 'Chassis' or 'Board' to model a sub-assembly.

1. https://github.com/openbmc/phosphor-dbus-interfaces/tree/master/xyz/openbmc_project/Software
2. https://github.com/openbmc/phosphor-dbus-interfaces/tree/master/xyz/openbmc_project/Software#find-all-software-versions-on-a-managed-element

--
Patrick Williams
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