From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>, davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Antoine Tenart <antoine.tenart@bootlin.com>,
thomas.petazzoni@bootlin.com, gregory.clement@bootlin.com,
miquel.raynal@bootlin.com, nadavh@marvell.com,
stefanc@marvell.com, ymarkman@marvell.com, mw@semihalf.com
Subject: Re: [PATCH net] net: mvpp2: Extract the correct ethtype from the skb for tx csum offload
Date: Thu, 4 Oct 2018 12:50:17 +0300 [thread overview]
Message-ID: <13fb6bd4-db67-6c35-9e6d-09ed89e10a45@cogentembedded.com> (raw)
In-Reply-To: <20181004080308.7687-1-maxime.chevallier@bootlin.com>
Hello!
On 10/4/2018 11:03 AM, Maxime Chevallier wrote:
> When offloading the L3 and L4 csum computation on TX, we need to extract
> the l3_proto from the ethtype, independently of the presence of a vlan
> tag.
>
> The actual driver uses skb->protocol as-is, resulting in packets with
> the wrong L4 checksum being sent when there's a vlan tag in the packet
> header and checksum offloading is enabled.
>
> This commit makes use of vlan_protocol_get() to get the correct ethtype
> regardless the presence of a vlan tag.
^ of?
> Fixes: 3f51850 ("ethernet: Add new driver for Marvell Armada 375 network unit")
12 hex digits needed here.
> Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
[...]
MBR, Sergei
next prev parent reply other threads:[~2018-10-04 9:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-04 8:03 Maxime Chevallier
2018-10-04 8:08 ` [EXT] " Yan Markman
2018-10-04 9:50 ` Sergei Shtylyov [this message]
2018-10-04 13:13 ` Maxime Chevallier
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