Re: [PATCH net-next v4 0/2] ethtool: Add support for writing firmware

From: Simon Horman
Date: Thu Oct 03 2024 - 09:54:09 EST


On Tue, Oct 01, 2024 at 03:41:48PM +0300, Danielle Ratson wrote:
> In the CMIS specification for pluggable modules, LPL (Local Payload) and
> EPL (Extended Payload) are two types of data payloads used for managing
> various functions and features of the module.
>
> EPL payloads are used for more complex and extensive management functions
> that require a larger amount of data, so writing firmware blocks using EPL
> is much more efficient.
>
> Currently, only LPL payload is supported for writing firmware blocks to
> the module.
>
> Add support for writing firmware block using EPL payload, both to support
> modules that support only EPL write mechanism, and to optimize the flashing
> process of modules that support LPL and EPL.
>
> Running the flashing command on the same sample module using EPL vs. LPL
> showed an improvement of 84%.
>
> Patchset overview:
> Patch #1: preparations
> Patch #2: Add EPL support
>
> v4: Resending the right version after wrong v3.

Thanks, this one looks good :)

>
> v2:
> * Fix the commit meassges to align the cover letter about the
> right meaning of LPL and EPL.
> Patch #2:
> * Initialize the variable 'bytes_written' before the first
> iteration.
>
> Danielle Ratson (2):
> net: ethtool: Add new parameters and a function to support EPL
> net: ethtool: Add support for writing firmware blocks using EPL
> payload
>
> net/ethtool/cmis.h | 16 ++++--
> net/ethtool/cmis_cdb.c | 94 +++++++++++++++++++++++++-----
> net/ethtool/cmis_fw_update.c | 108 +++++++++++++++++++++++++++++------
> 3 files changed, 184 insertions(+), 34 deletions(-)
>
> --
> 2.45.0
>