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Date:   Wed, 23 Dec 2020 15:45:31 +0100
From:   Rasmus Villemoes <>
        Horatiu Vultur <>
Cc:, Jakub Kicinski <>,
        "David S. Miller" <>,
        Rasmus Villemoes <>
Subject: [PATCH net 0/2] MRP without hardware offload?

Hi Horatiu and net folks

I'm having quite some trouble getting MRP working in a simple setup
involving three mv88e6250 switches in a ring, with one node set as
manager and the other two as clients.

I'm reasonably confident these two patches are necessary and correct
(though the second one affects quite a bit more than MRP, so comments
welcome), but they are not sufficient - for example, I'm wondering
about why there doesn't seem to be any code guarding against sending a
test packet back out the port it came in.

I have tried applying a few more patches, but since the end result
still doesn't seem to result in a working MRP setup, I'm a bit out of
ideas, and not proposing any of those yet.

Has anyone managed to set up an MRP ring with no hardware offload
support? I'm using commit 9030e898a2f232fdb4a3b2ec5e91fa483e31eeaf
from and kernel v5.10.2.

Rasmus Villemoes (2):
  net: mrp: fix definitions of MRP test packets
  net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP

 include/uapi/linux/mrp_bridge.h |  4 ++--
 net/switchdev/switchdev.c       | 23 +++++++++++++----------
 2 files changed, 15 insertions(+), 12 deletions(-)


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