Re: [PATCH net-next v10 0/6] pds_core: Add PLDM firmware update and host backed memory support

Re: [PATCH net-next v10 0/6] pds_core: Add PLDM firmware update and host backed memory support

[Rao, Nikhil]

On 7/28/2026 2:09 PM, Nikhil P. Rao wrote:
> This series adds PLDM-based firmware update support to the pds_core
> driver. PLDM (Platform Level Data Model) is a DMTF standard for firmware
> management that provides a vendor-neutral interface for firmware updates.
> 
> The implementation uses the kernel's pldmfw library for package parsing
> and component matching. Users can update entire firmware packages or
> individual components via devlink flash. Component information is
> displayed via devlink info, showing firmware versions and update status
> for each component.
> 
> The series also adds host backed memory support, allowing firmware to
> request memory pages from the host for its operations.
> 
> Changes since v9:
> - Patch 3 (PLDM firmware update):
>    - Fix a v9 rebase error that reintroduced an -EOPNOTSUPP guard in
>      pdsc_dl_flash_update(), which rejected all per-component flash
>      requests and made per-component update unreachable.
>    - Implement per-component update using the pldmfw
>      PLDMFW_UPDATE_MODE_SINGLE_COMPONENT mode and component_identifier
>      instead of a driver-side component-name filter. The name filter
>      silently reported success when the requested component was absent
>      from the package (nothing was flashed); the framework mode rejects
>      that case instead.
> - Link to v9: https://patch.msgid.link/20260724-upstream_v8-v9-0-8425762b8b7f@amd.com
> 
Self-NAK for v10 -- per-component update is broken.

Patch 3 filters the package by a single device-side identifier
(PLDMFW_UPDATE_MODE_SINGLE_COMPONENT), but the same component type can
have different identifiers in the standard vs gold firmware packages, so
that identifier may be absent from the package and the update fails with
-ENOENT.

I will send a v11 that matches by component type against the
package contents, as in earlier versions.

Apologies for the churn.

Nikhil

Re: [PATCH net-next v10 0/6] pds_core: Add PLDM firmware update and host backed memory support

[Jakub Kicinski]

On Tue, 28 Jul 2026 15:52:55 -0700 Rao, Nikhil wrote:
> Self-NAK for v10 -- per-component update is broken.
> 
> Patch 3 filters the package by a single device-side identifier
> (PLDMFW_UPDATE_MODE_SINGLE_COMPONENT), but the same component type can
> have different identifiers in the standard vs gold firmware packages, so
> that identifier may be absent from the package and the update fails with
> -ENOENT.
> 
> I will send a v11 that matches by component type against the
> package contents, as in earlier versions.

Thanks for the note. FWIW v10 never made it to the list?
v9 was still in patchwork so I tossed that out.