netdev - Re: PROBLEM: (DSA/Microchip): 802.1Q-Header lost on KSZ9477-DSA ingress without bridge

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Message-ID: <20200804195423.ixeevhsviap535on@skbuf>
Date:   Tue, 4 Aug 2020 22:54:23 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     "Gaube, Marvin (THSE-TL1)" <Marvin.Gaube@...at.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: PROBLEM: (DSA/Microchip): 802.1Q-Header lost on KSZ9477-DSA
 ingress without bridge

On Tue, Aug 04, 2020 at 08:51:00AM -0700, Florian Fainelli wrote:
> "I looked into it deeper, the driver does rxvlan offloading."
> 
> Is this part of the driver upstream or are you using a vendor tree from
> Freescale which has that change included?
> 

Does it matter?
FWIW, mainline fec does declare NETIF_F_HW_VLAN_CTAG_RX:
https://elixir.bootlin.com/linux/latest/source/drivers/net/ethernet/freescale/fec_main.c#L3317
and move it to the hwaccel area on RX:
https://elixir.bootlin.com/linux/latest/source/drivers/net/ethernet/freescale/fec_main.c#L1513