netdev - [PATCHv2 net-next 0/3] bonding: support aggregator selection based on port priority

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Message-ID: <20250814104256.18372-1-liuhangbin@gmail.com>
Date: Thu, 14 Aug 2025 10:42:53 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: Jay Vosburgh <jv@...sburgh.net>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Simon Horman <horms@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	Jonathan Corbet <corbet@....net>,
	Petr Machata <petrm@...dia.com>,
	Amit Cohen <amcohen@...dia.com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Stephen Hemminger <stephen@...workplumber.org>,
	David Ahern <dsahern@...il.com>,
	linux-doc@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net-next 0/3] bonding: support aggregator selection based on port priority

This patchset introduces a new per-port bonding option: `ad_actor_port_prio`.

It allows users to configure the actor's port priority, which can then be used
by the bonding driver for aggregator selection based on port priority.

This provides finer control over LACP aggregator choice, especially in setups
with multiple eligible aggregators over 2 switches.

v2:
a) set default bond option value for port priority (Nikolay Aleksandrov)
b) fix __agg_ports_priority coding style (Nikolay Aleksandrov)
c) fix shellcheck warns

Hangbin Liu (3):
  bonding: add support for per-port LACP actor priority
  bonding: support aggregator selection based on port priority
  selftests: bonding: add test for LACP actor port priority

 Documentation/networking/bonding.rst          | 18 +++-
 drivers/net/bonding/bond_3ad.c                | 29 ++++++
 drivers/net/bonding/bond_netlink.c            | 16 ++++
 drivers/net/bonding/bond_options.c            | 37 ++++++++
 include/net/bond_3ad.h                        |  2 +
 include/net/bond_options.h                    |  1 +
 include/uapi/linux/if_link.h                  |  1 +
 .../selftests/drivers/net/bonding/Makefile    |  3 +-
 .../drivers/net/bonding/bond_lacp_prio.sh     | 93 +++++++++++++++++++
 tools/testing/selftests/net/forwarding/lib.sh | 24 -----
 tools/testing/selftests/net/lib.sh            | 24 +++++
 11 files changed, 222 insertions(+), 26 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh

-- 
2.50.1