[dpdk-dev] [PATCH v3] i40e: add VEB switching support for i40e

Wu, Jingjing jingjing.wu at intel.com
Wed Mar 9 07:02:38 CET 2016



> -----Original Message-----
> From: Tao, Zhe
> Sent: Wednesday, March 09, 2016 1:39 PM
> To: dev at dpdk.org
> Cc: Tao, Zhe; Wu, Jingjing
> Subject: [dpdk-dev][PATCH v3] i40e: add VEB switching support for i40e
> 
> VEB switching feature for i40e is used to enable the switching between the
> VSIs connect to the virtual bridge. The old implementation is setting the
> virtual bridge mode as VEPA which is port aggregation. Enable the switching
> ability by setting the loop back mode for the specific VSIs which connect to PF
> or VFs.
> 
> VEB/VSI/VEPA are concepts not specific to the i40e HW, the concepts are
> from 802.1qbg spec IEEE EVB tutorial:
> http://www.ieee802.org/802_tutorials/2009-11/evb-tutorial-draft-
> 20091116_v09.pdf
> 
> VEB: a virtual switch can forward the packet based on the specific match field.
> VSI: a virtual interface connect between the VEB/VEPA and virtual machine.
> VEPA: a virtual Ethernet port aggregator will upstream the packets from VSI
> to the LAN port.
> 
> Signed-off-by: Zhe Tao <zhe.tao at intel.com>
Acked-by: Jingjing Wu <jingjing.wu at intel.com>



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