netdev - [PATCH net-next 0/3] Add support for 800Gbps speed

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Date:   Thu, 20 Oct 2022 17:20:02 +0200
From:   Petr Machata <petrm@...dia.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, <netdev@...r.kernel.org>
CC:     Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        Ido Schimmel <idosch@...dia.com>,
        "Petr Machata" <petrm@...dia.com>, Amit Cohen <amcohen@...dia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        David Ahern <dsahern@...nel.org>, <mlxsw@...dia.com>
Subject: [PATCH net-next 0/3] Add support for 800Gbps speed

Amit Cohen <amcohen@...dia.com> writes:

The next Nvidia Spectrum ASIC will support 800Gbps speed.
The IEEE 802 LAN/MAN Standards Committee already published standards for
800Gbps, see the last update [1] and the list of approved changes [2].

As first phase, add support for 800Gbps over 8 lanes (100Gbps/lane).
In the future 800Gbps over 4 lanes can be supported also.

Extend ethtool to support the relevant PMDs and extend mlxsw and bonding
drivers to support 800Gbps.

Patch set overview:
Patch #1 extends ethtool to support 800Gbps.
Patch #2 extends mlxsw driver to support 800Gbps.
Patch #3 extends bonding driver to support 800Gbps.

----
[1]: https://www.ieee802.org/3/df/public/22_10/22_1004/shrikhande_3df_01a_221004.pdf
[2]: https://ieee802.org/3/df/KeyMotions_3df_221005.pdf

Amit Cohen (3):
  ethtool: Add support for 800Gbps link modes
  mlxsw: Add support for 800Gbps link modes
  bonding: 3ad: Add support for 800G speed

 drivers/net/bonding/bond_3ad.c                |  9 ++++++++
 drivers/net/ethernet/mellanox/mlxsw/reg.h     |  1 +
 .../mellanox/mlxsw/spectrum_ethtool.c         | 21 +++++++++++++++++++
 drivers/net/phy/phy-core.c                    | 11 +++++++++-
 include/uapi/linux/ethtool.h                  |  8 +++++++
 net/ethtool/common.c                          | 14 +++++++++++++
 6 files changed, 63 insertions(+), 1 deletion(-)

-- 
2.35.3