> -----Original Message-----
> From: discuss [mailto:[email protected]] On Behalf Of
> IñakiMurillo
> Sent: Tuesday, February 24, 2015 4:42 PM
> To: [email protected]
> Subject: [ovs-discuss] Fwd: Doubt: QEMU <-> OVS using DPDK
> 
> 
> 
> Hello,
> 
> I am trying to connect a virtual machine with a openvswitch using DPDK
> for performance, as you can see in the next figure.
> 
> +-----------------------------------------------+
> | QMEU VM                                       |
> |                                               |
> |                          +--------+--------+  |
> |                          |    DPDK  APP    |  |
> |                          |                 |  |
> |                          +--------^--------+  |
> |                                   |           |
> |                          +--------V--------+  |
> |                          |   DPDK virtual  |  |
> |                          |    interface    |  |
> +--------------------------+--------^--------+--+
>                                      |   Ivshmen ¿?
>                                      |   MEMNIC  ¿?
>                                      |
> +-----+--------------------+--------V--------+--+
> |  OVS+DPDK                |   DPDK virtual  |  |
> |                          |    interface    |  |
> |                          +-----------------+  |
> |                                               |
> |                                               |
> |  +--------------+         +----------------+  |
> |  |              |         |                |  |
> +--+------^-------+---------+----------^-----+--+
>            |                            |
>            |                            |
>            |                            |
> +---------V---+                 +------V--------+
> |  10G NIC    |                 |  10G NIC      |
> |   DPDK      |                 |   DPDK        |
> +-------------+                 +---------------+
> 
> I do not have any problem connecting with 10G NICs, but I do have when
> it comes to QEMU. I am nor pretty sure how to connect qemu with ovs.
> 
> As far as I know, I think that I have to use MEMNIC or Ivshmem, but I
> cannot find much information about how to do it.
At present you can use ivshmem or vhost-cuse. The instructions for ivshmem are 
in 
INSTALL.DPDK

> 
> Could someone explain to me how can it be done?
vhost is not upstreamed yet, so you'd need this patch 
http://openvswitch.org/pipermail/dev/2015-January/050278.html the instructions 
will 
patch into INSTALL.DPDK and be sure to note the dependencies in the cover 
letter.

If you want info about the differences between ivshmem and vhost - have a look 
at 
the video from the OVS conf http://youtu.be/FmQmo8zG4y8

> 
> Thank you in advanced.
> 
> Iñaki Murillo
> 
> 
> 
> 
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