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Date: Mon, 05 Oct 2015 04:32:02 -0700 (PDT) From: David Miller <davem@...emloft.net> To: jeffrey.t.kirsher@...el.com Cc: jesse.brandeburg@...el.com, netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com Subject: Re: [net] i40e: fix offload of GRE tunnels From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Date: Thu, 1 Oct 2015 18:25:42 -0700 > From: Jesse Brandeburg <jesse.brandeburg@...el.com> > > The driver still was not offloading TSO on GRE tunnels because > it forgot to set the GSO_GRE flag, causing lots of retransmits. > > This fixes generic GRE traffic (like a tunnel added like below) > whereas before it would get 1Gb/s or less, now on a 10G adapter > it gets 8.7Gb/s. > > ip ad ad 11.1.0.2/24 dev ens2f0 > ip l set ens2f0 up > ip link add gre2 type gretap remote 11.1.0.1 local 11.1.0.2 dev ens2f0 > ip l set gre2 up > ip ad ad 192.168.124.2/24 dev gre2 > ping 192.168.124.1 > netperf -H 192.168.124.1 > > Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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