netdev - [PATCHv2 net-next 0/5] bonding: add IPv6 NS/NA monitor support

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Message-Id: <20220221055458.18790-1-liuhangbin@gmail.com>
Date:   Mon, 21 Feb 2022 13:54:52 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Jonathan Toppins <jtoppins@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net-next 0/5] bonding: add IPv6 NS/NA monitor support

This patch add bond IPv6 NS/NA monitor support. A new option
ns_ip6_target is added, which is similar with arp_ip_target.
The IPv6 NS/NA monitor will take effect when there is a valid IPv6
address. Both ARP monitor and NS monitor will working at the same time.

A new extra storage field is added to struct bond_opt_value for IPv6 support.

Function bond_handle_vlan() is split from bond_arp_send() for both
IPv4/IPv6 usage.

To alloc NS message and send out. ndisc_ns_create() and ndisc_send_skb()
are exported.

v1 -> v2:
1. remove sysfs entry[1] and only keep netlink support.

RFC -> v1:
1. define BOND_MAX_ND_TARGETS as BOND_MAX_ARP_TARGETS
2. adjust for reverse xmas tree ordering of local variables
3. remove bond_do_ns_validate()
4. add extra field for bond_opt_value
5. set IS_ENABLED(CONFIG_IPV6) for IPv6 codes

[1] https://lore.kernel.org/netdev/8863.1645071997@famine

Hangbin Liu (5):
  ipv6: separate ndisc_ns_create() from ndisc_send_ns()
  Bonding: split bond_handle_vlan from bond_arp_send
  bonding: add extra field for bond_opt_value
  bonding: add new parameter ns_targets
  bonding: add new option ns_ip6_target

 Documentation/networking/bonding.rst |  11 +
 drivers/net/bonding/bond_main.c      | 295 +++++++++++++++++++++++----
 drivers/net/bonding/bond_netlink.c   |  59 ++++++
 drivers/net/bonding/bond_options.c   |  74 ++++++-
 include/net/bond_options.h           |  31 ++-
 include/net/bonding.h                |  26 ++-
 include/net/ndisc.h                  |   5 +
 include/uapi/linux/if_link.h         |   1 +
 net/ipv6/ndisc.c                     |  49 +++--
 tools/include/uapi/linux/if_link.h   |   1 +
 10 files changed, 481 insertions(+), 71 deletions(-)

-- 
2.31.1