netdev - Re: [patch net-next 0/6] ipv4: fib: Provide per-nexthop offload indication

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Date:   Wed, 02 Aug 2017 17:00:40 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     netdev@...r.kernel.org, idosch@...lanox.com, mlxsw@...lanox.com,
        dsahern@...il.com, roopa@...ulusnetworks.com,
        nikolay@...ulusnetworks.com, hannes@...essinduktion.org,
        yoshfuji@...ux-ipv6.org, kuznet@....inr.ac.ru
Subject: Re: [patch net-next 0/6] ipv4: fib: Provide per-nexthop offload
 indication

From: Jiri Pirko <jiri@...nulli.us>
Date: Wed,  2 Aug 2017 09:56:00 +0200

> From: Jiri Pirko <jiri@...lanox.com>
> 
> Ido says:
> 
> Offload indication for IPv4 routes is currently set in the FIB info's
> flags. When multipath routes are employed, this can lead to a route being
> marked as offloaded although only one of its nexthops is actually
> offloaded.
> 
> Instead, this patchset aims to proivde a higher resolution for the offload
> indication and report it on a per-nexthop basis.
> 
> Example output from patched iproute:
> 
> $ ip route show 192.168.200.0/24
> 192.168.200.0/24
>         nexthop via 192.168.100.2 dev enp3s0np7 weight 1 offload
>         nexthop via 192.168.101.3 dev enp3s0np8 weight 1
> 
> And once the second gateway is resolved:
> 
> $ ip route show 192.168.200.0/24
> 192.168.200.0/24
>         nexthop via 192.168.100.2 dev enp3s0np7 weight 1 offload
>         nexthop via 192.168.101.3 dev enp3s0np8 weight 1 offload
> 
> First patch teaches the kernel to look for the offload indication in the
> nexthop flags. Patches 2-5 adjust current capable drivers to provide
> offload indication on a per-nexthop basis. Last patch removes no longer
> used functions to set offload indication in the FIB info's flags.

Series applied, thanks Jiri.