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List:       openvswitch-discuss
Subject:    [ovs-discuss] Offload tunnel checksum to NIC
From:       pshelar () nicira ! com (Pravin Shelar)
Date:       2014-08-29 16:35:55
Message-ID: CALnjE+p1HJ1HCkSo7OLgv9WBQ_ez4ydZy6ie3XFDJfF+XScVcw () mail ! gmail ! com
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On Thu, Aug 28, 2014 at 1:20 AM, vijay mohan <vijay1054 at gmail.com> wrote:
> Hi,
> I am using OVS-2.3 with cavium NIC for VxLAN and NVGRE tunnels creation. I
> am trying to get tunnel checksum (inner TCP/UDP checksum) offloaded to NIC
> by setting net_device.hw_enc_features. I could get the tunnel checksum
> offloaded if i create tunnels with "ip link add vxlanX type vxlan ..." but
> the tunnels created with OVS still have the checksum calculated by host CPU.
> Please let me know, is this the way to enable checksum offload features for
> the tunnels created with OVS.
>

Can you try master branch. branch-2.3 can not use tunnel hardware offloads.

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