netdev - Re: [PATCH net-next 00/15] mlxsw: Add tunnel devlink-trap support

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Date:   Sun, 19 Jan 2020 16:25:38 +0100 (CET)
From:   David Miller <davem@...emloft.net>
To:     idosch@...sch.org
Cc:     netdev@...r.kernel.org, jiri@...lanox.com, amitc@...lanox.com,
        mlxsw@...lanox.com, idosch@...lanox.com
Subject: Re: [PATCH net-next 00/15] mlxsw: Add tunnel devlink-trap support

From: Ido Schimmel <idosch@...sch.org>
Date: Sun, 19 Jan 2020 15:00:45 +0200

> This patch set from Amit adds support in mlxsw for tunnel traps and a
> few additional layer 3 traps that can report drops and exceptions via
> devlink-trap.
> 
> These traps allow the user to more quickly diagnose problems relating to
> tunnel decapsulation errors, such as packet being too short to
> decapsulate or a packet containing wrong GRE key in its GRE header.
> 
> Patch set overview:
> 
> Patches #1-#4 add three additional layer 3 traps. Two of which are
> mlxsw-specific as they relate to hardware-specific errors. The patches
> include documentation of each trap and selftests.
> 
> Patches #5-#8 are preparations. They ensure that the correct ECN bits
> are set in the outer header during IPinIP encapsulation and that packets
> with an invalid ECN combination in underlay and overlay are trapped to
> the kernel and not decapsulated in hardware.
> 
> Patches #9-#15 add support for two tunnel related traps. Each trap is
> documented and selftested using both VXLAN and IPinIP tunnels, if
> applicable.

Series applied, thanks Ido.