netdev - Re: [PATCH net-next, v2] netlink: add IPv6 anycast join/leave notifications

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Message-ID: <CANn89i+wHj5NaCcXs74TPC8nBz95fEBMLZ1Pg5F68kwrWkO_fA@mail.gmail.com>
Date: Mon, 6 Jan 2025 09:35:28 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: Yuyang Huang <yuyanghuang@...gle.com>
Cc: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, David Ahern <dsahern@...nel.org>, 
	roopa@...ulusnetworks.com, jiri@...nulli.us, stephen@...workplumber.org, 
	jimictw@...gle.com, prohr@...gle.com, liuhangbin@...il.com, 
	nicolas.dichtel@...nd.com, andrew@...n.ch, netdev@...r.kernel.org, 
	Maciej Żenczykowski <maze@...gle.com>, 
	Lorenzo Colitti <lorenzo@...gle.com>
Subject: Re: [PATCH net-next, v2] netlink: add IPv6 anycast join/leave notifications

On Mon, Jan 6, 2025 at 9:15 AM Yuyang Huang <yuyanghuang@...gle.com> wrote:
>
> This change introduces a mechanism for notifying userspace
> applications about changes to IPv6 anycast addresses via netlink. It
> includes:
>
> * Addition and deletion of IPv6 anycast addresses are reported using
>   RTM_NEWANYCAST and RTM_DELANYCAST.
> * A new netlink group (RTNLGRP_IPV6_ACADDR) for subscribing to these
>   notifications.
>
> This enables user space applications(e.g. ip monitor) to efficiently
> track anycast addresses through netlink messages, improving metrics
> collection and system monitoring. It also unlocks the potential for
> advanced anycast management in user space, such as hardware offload
> control and fine grained network control.
>
> Cc: Maciej Żenczykowski <maze@...gle.com>
> Cc: Lorenzo Colitti <lorenzo@...gle.com>
> Signed-off-by: Yuyang Huang <yuyanghuang@...gle.com>
> ---

Reviewed-by: Eric Dumazet <edumazet@...gle.com>