netdev - Re: [PATCH net-next 0/2] net: introduce and use route hint

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Message-Id: <20191116.120934.1197611919693218297.davem@davemloft.net>
Date:   Sat, 16 Nov 2019 12:09:34 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     pabeni@...hat.com
Cc:     netdev@...r.kernel.org, willemdebruijn.kernel@...il.com,
        ecree@...arflare.com
Subject: Re: [PATCH net-next 0/2] net: introduce and use route hint

From: Paolo Abeni <pabeni@...hat.com>
Date: Sat, 16 Nov 2019 10:14:49 +0100

> This series leverages the listification infrastructure to avoid
> unnecessary route lookup on ingress packets. In absence of policy routing,
> packets with equal daddr will usually land on the same dst.
> 
> When processing packet bursts (lists) we can easily reference the previous
> dst entry. When we hit the 'same destination' condition we can avoid the
> route lookup, coping the already available dst.
> 
> Detailed performance numbers are available in the individual commit messages.

Looks like there are some problems with the unconditional use of
fib{6}_has_custom_rules in this series.