From: Ido Schimmel <idosch@nvidia.com>
To: Petr Machata <petrm@nvidia.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, Simon Horman <horms@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
David Ahern <dsahern@kernel.org>,
Przemek Kitszel <przemyslaw.kitszel@intel.com>,
mlxsw@nvidia.com
Subject: Re: [PATCH net] Documentation: networking: Add a caveat to nexthop_compat_mode sysctl
Date: Mon, 9 Dec 2024 17:34:26 +0200 [thread overview]
Message-ID: <Z1cOAv1Xq1DU-v9a@shredder> (raw)
In-Reply-To: <b575e32399ccacd09079b2a218255164535123bd.1733740749.git.petrm@nvidia.com>
On Mon, Dec 09, 2024 at 12:05:31PM +0100, Petr Machata wrote:
> net.ipv4.nexthop_compat_mode was added when nexthop objects were added to
> provide the view of nexthop objects through the usual lens of the route
> UAPI. As nexthop objects evolved, the information provided through this
> lens became incomplete. For example, details of resilient nexthop groups
> are obviously omitted.
>
> Now that 16-bit nexthop group weights are a thing, the 8-bit UAPI cannot
> convey the >8-bit weight accurately. Instead of inventing workarounds for
> an obsolete interface, just document the expectations of inaccuracy.
>
> Fixes: b72a6a7ab957 ("net: nexthop: Increase weight to u16")
> Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
next prev parent reply other threads:[~2024-12-09 15:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-09 11:05 [PATCH net] Documentation: networking: Add a caveat to nexthop_compat_mode sysctl Petr Machata
2024-12-09 15:34 ` Ido Schimmel [this message]
2024-12-09 16:26 ` David Ahern
2024-12-11 2:40 ` patchwork-bot+netdevbpf
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