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Message-Id: <20250510044504.52618-3-tonghao@bamaicloud.com> Date: Sat, 10 May 2025 12:45:02 +0800 From: tonghao@...aicloud.com To: netdev@...r.kernel.org Cc: Tonghao Zhang <tonghao@...aicloud.com>, Jay Vosburgh <jv@...sburgh.net>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, Jonathan Corbet <corbet@....net>, Andrew Lunn <andrew+netdev@...n.ch> Subject: [PATCH net-next 2/4] net: bonding: add broadcast_neighbor netlink option From: Tonghao Zhang <tonghao@...aicloud.com> User can config or display the bonding broadcast_neighbor option via iproute2/netlink. Cc: Jay Vosburgh <jv@...sburgh.net> Cc: "David S. Miller" <davem@...emloft.net> Cc: Eric Dumazet <edumazet@...gle.com> Cc: Jakub Kicinski <kuba@...nel.org> Cc: Paolo Abeni <pabeni@...hat.com> Cc: Simon Horman <horms@...nel.org> Cc: Jonathan Corbet <corbet@....net> Cc: Andrew Lunn <andrew+netdev@...n.ch> Signed-off-by: Tonghao Zhang <tonghao@...aicloud.com> --- drivers/net/bonding/bond_netlink.c | 16 ++++++++++++++++ include/uapi/linux/if_link.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c index ac5e402c34bc..57fff2421f1b 100644 --- a/drivers/net/bonding/bond_netlink.c +++ b/drivers/net/bonding/bond_netlink.c @@ -124,6 +124,7 @@ static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = { [IFLA_BOND_MISSED_MAX] = { .type = NLA_U8 }, [IFLA_BOND_NS_IP6_TARGET] = { .type = NLA_NESTED }, [IFLA_BOND_COUPLED_CONTROL] = { .type = NLA_U8 }, + [IFLA_BOND_BROADCAST_NEIGH] = { .type = NLA_U8 }, }; static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { @@ -561,6 +562,16 @@ static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[], return err; } + if (data[IFLA_BOND_BROADCAST_NEIGH]) { + int broadcast_neigh = nla_get_u8(data[IFLA_BOND_BROADCAST_NEIGH]); + + bond_opt_initval(&newval, broadcast_neigh); + err = __bond_opt_set(bond, BOND_OPT_BROADCAST_NEIGH, &newval, + data[IFLA_BOND_BROADCAST_NEIGH], extack); + if (err) + return err; + } + return 0; } @@ -630,6 +641,7 @@ static size_t bond_get_size(const struct net_device *bond_dev) nla_total_size(sizeof(struct nlattr)) + nla_total_size(sizeof(struct in6_addr)) * BOND_MAX_NS_TARGETS + nla_total_size(sizeof(u8)) + /* IFLA_BOND_COUPLED_CONTROL */ + nla_total_size(sizeof(u8)) + /* IFLA_BOND_BROADCAST_NEIGH */ 0; } @@ -793,6 +805,10 @@ static int bond_fill_info(struct sk_buff *skb, bond->params.coupled_control)) goto nla_put_failure; + if (nla_put_u8(skb, IFLA_BOND_BROADCAST_NEIGH, + bond->params.broadcast_neighbor)) + goto nla_put_failure; + if (BOND_MODE(bond) == BOND_MODE_8023AD) { struct ad_info info; diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 3ad2d5d98034..53b2f6ebda8b 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -1534,6 +1534,7 @@ enum { IFLA_BOND_MISSED_MAX, IFLA_BOND_NS_IP6_TARGET, IFLA_BOND_COUPLED_CONTROL, + IFLA_BOND_BROADCAST_NEIGH, __IFLA_BOND_MAX, }; -- 2.34.1
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