netdev - Re: discussion mlx5e vlan forwarding

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Date:   Fri, 17 Apr 2020 22:48:05 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     Roi Dayan <roid@...lanox.com>,
        "xiangxia.m.yue@...il.com" <xiangxia.m.yue@...il.com>,
        "gerlitz.or@...il.com" <gerlitz.or@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: discussion mlx5e vlan forwarding

On Fri, 2020-04-17 at 18:57 +0800, Tonghao Zhang wrote:
> Hi Saeed and maintainers
> 
> In one case, I want to push vlan and forward the packets to one VF.
> Tc
> command shown as below
> $ tc filter add dev $PF0_REP0 parent ffff: protocol ip prio 1 chain 0
> \
>     flower src_mac 0a:47:da:d6:40:04 dst_mac 00:11:22:33:44:66 \
>     action vlan push id 200 pipe action mirred egress redirect dev
> $PF_REP1
> 
> dmesg:
> mlx5_core 0000:82:00.0: mlx5_cmd_check:756:(pid 10735):
> SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad
> parameter(0x3), syndrome (0xa9c090)
> 
> So do we support that forwarding ?
> 

Hi Tonghao, 

CC'ing more experts, Or and Roi, they might have more useful info for
you.

but as far as i recall, this can only work on uplink port and not a VF.

> kernel version: 5.6.0-rc7+ [OFED 5.0 has that issue too]
> firmware-version: 16.27.1016
> NIC: Mellanox Technologies MT27800 Family [ConnectX-5]