netdev - Re: [PATCH net] geneve: update skb dst pmtu on tx path

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Message-Id: <20180102.123635.1929310760283645183.davem@davemloft.net>
Date:   Tue, 02 Jan 2018 12:36:35 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net] geneve: update skb dst pmtu on tx path

From: Xin Long <lucien.xin@...il.com>
Date: Mon, 25 Dec 2017 14:43:58 +0800

> Commit a93bf0ff4490 ("vxlan: update skb dst pmtu on tx path") has fixed
> a performance issue caused by the change of lower dev's mtu for vxlan.
> 
> The same thing needs to be done for geneve as well.
> 
> Note that geneve cannot adjust it's mtu according to lower dev's mtu
> when creating it. The performance is very low later when netperfing
> over it without fixing the mtu manually. This patch could also avoid
> this issue.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied.