netdev - Re: [PATCH v1 1/6] net: Generalize udp based tunnel offload

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Date:	Sat, 5 Dec 2015 09:53:43 -0800
From:	Tom Herbert <tom@...bertland.com>
To:	Alexander Duyck <alexander.duyck@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	John Linville <linville@...driver.com>,
	Jesse Gross <jesse@...nel.org>,
	Anjali Singhai Jain <anjali.singhai@...el.com>,
	Netdev <netdev@...r.kernel.org>,
	Kiran Patil <kiran.patil@...el.com>
Subject: Re: [PATCH v1 1/6] net: Generalize udp based tunnel offload

> Keep in mind I don't represent one of the hardware vendors here
> anymore.  I am approaching this from the customer point of view.  I
> would like to have the performance I can get out of the parts I have.

Trying enabling UDP checksum, GRO/GSO, and Remote Checksum Offload in
VXLAN. Assuming you have a NIC that at least provides UDP checksum
offload and RSS for UDP (may need to be enabled) you can get good
VXLAN performance across a varietyof legacy "dumb" NICs.
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