netdev - Re: [PATCH net-next 00/10] mlxsw: Add support for blackhole nexthops

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Date:   Tue, 24 Nov 2020 12:19:33 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Ido Schimmel <idosch@...sch.org>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, jiri@...dia.com,
        dsahern@...il.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: Re: [PATCH net-next 00/10] mlxsw: Add support for blackhole
 nexthops

On Mon, 23 Nov 2020 09:12:20 +0200 Ido Schimmel wrote:
> This patch set adds support for blackhole nexthops in mlxsw. These
> nexthops are exactly the same as other nexthops, but instead of
> forwarding packets to an egress router interface (RIF), they are
> programmed to silently drop them.
> 
> Patches #1-#4 are preparations.
> 
> Patch #5 adds support for blackhole nexthops and removes the check that
> prevented them from being programmed.
> 
> Patch #6 adds a selftests over mlxsw which tests that blackhole nexthops
> can be programmed and are marked as offloaded.
> 
> Patch #7 extends the existing nexthop forwarding test to also test
> blackhole functionality.
> 
> Patches #8-#10 add support for a new packet trap ('blackhole_nexthop')
> which should be triggered whenever packets are dropped by a blackhole
> nexthop. Obviously, by default, the trap action is set to 'drop' so that
> dropped packets will not be reported.

Applied, thanks!