From: Ido Schimmel <idosch@idosch.org>
To: Leonid Komaryanskiy <lkomaryanskiy@gmail.com>
Cc: netdev@vger.kernel.org, dmytro_firsov@epam.com, petrm@nvidia.com
Subject: Re: ip_forward notification for driver
Date: Thu, 10 Nov 2022 10:15:37 +0200 [thread overview]
Message-ID: <Y2yzKfSPJ7h2arO/@shredder> (raw)
In-Reply-To: <CAHRDKfRZEw3Mq9GP3rCf2U10Y7X7N61BNZCa95tKESZkVD2qAg@mail.gmail.com>
On Thu, Nov 10, 2022 at 09:51:35AM +0200, Leonid Komaryanskiy wrote:
> I'm working on L3 routing offload for switch device and have a
> question about ip_forwarding. I want to disable/enable forwarding on
> the hardware side according to changing value in
> /proc/sys/net/ipv4/ip_forward. As I see, inet_netconf_notify_devconf
> just sends rtnl_notify for userspace. Could I ask you for advice, on
> how can I handle updating value via some notifier or some other Linux
> mechanism in driver?
You can look into netevents. See NETEVENT_IPV4_MPATH_HASH_UPDATE and
NETEVENT_IPV4_FWD_UPDATE_PRIORITY_UPDATE, for example.
next prev parent reply other threads:[~2022-11-10 8:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-10 7:51 ip_forward notification for driver Leonid Komaryanskiy
2022-11-10 8:15 ` Ido Schimmel [this message]
2022-12-01 15:21 ` Leonid Komaryanskiy
2022-12-04 9:05 ` Ido Schimmel
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