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Message-ID: <e871f7f1-1eb9-ff3b-e79d-8db98ecc307f@huawei.com>
Date: Tue, 6 Feb 2018 17:12:49 +0800
From: Yunsheng Lin <linyunsheng@...wei.com>
To: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC: <avagin@...nvz.org>, <kuznet@...tuozzo.com>, <kaber@...sh.net>,
<makita.toshiaki@....ntt.co.jp>,
"davem@...emloft.net" <davem@...emloft.net>,
"linuxarm@...wei.com" <linuxarm@...wei.com>
Subject: Potential display issue with 88997e4208ae "net/8021q: create device
with all possible features in wanted_features"
Hi, all
During testing, below cmd is used to add a vlan dev.
vconfig add eth0 1000
Without the commit 88997e4208ae(I revert the patch in the
latest net-next)
ethtool -k eth0 | grep rx-checksumming
rx-checksumming: on
ethtool -k eth0.1000 | grep rx-checksumming
rx-checksumming: on [fixed]
ethtool -K eth0 rx off
ethtool -k eth0 | grep rx-checksumming
rx-checksumming: off
ethtool -k eth0.1000 | grep rx-checksumming
rx-checksumming: off [fixed]
-----------------------------------------
With the commit 88997e4208ae
ethtool -k eth0 | grep rx-checksumming
rx-checksumming: on
ethtool -k eth0.1000 | grep rx-checksumming
rx-checksumming: off [fixed]
ethtool -K eth0 rx off
ethtool -k eth0 | grep rx-checksumming
rx-checksumming: off
ethtool -k eth0.1000 | grep rx-checksumming
rx-checksumming: off [fixed]
So the vlan dev' rx-csum feature is not changed automatically
according to the lower dev' rx-csum feature after commit 88997e4208ae.
Is this a display issue? And Do we need to fix this issue?
MBR,
Yunsheng Lin
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