Re: [dpdk-dev] How do you setup a VM in Promiscuous Mode using PCI Pass-Through (SR-IOV)?

[Stephen Hemminger <stephen@networkplumber.org>]

On Thu, 14 May 2015 21:38:24 +0000
"Assaad, Sami (Sami)" <sami.assaad@alcatel-lucent.com> wrote:

> Hello,
> 
> My Hardware consists of the following:
>   - DL380 Gen 9 Server supporting two Haswell Processors (Xeon CPU E5-2680 v3 @ 2.50GHz)
>   - An x540 Ethernet Controller Card supporting 2x10G ports.
> 
> Software:
>   - CentOS 7 (3.10.0-229.1.2.el7.x86_64)
>   - DPDK 1.8
> 
> I want all the network traffic received on the two 10G ports to be transmitted to my VM. The issue is that the Virtual Function / Physical Functions have setup the internal virtual switch to only route Ethernet packets with destination MAC address matching the VM virtual interface MAC. How can I configure my virtual environment to provide all network traffic to the VM...i.e. set the virtual functions for both PCI devices in Promiscuous mode?
> 
> [ If a l2fwd-vf example exists, this would actually solve this problem ... Is there a DPDK l2fwd-vf example available? ]
> 
> 
> Thanks in advance.
> 
> Best Regards,
> Sami Assaad.

This is a host side (not DPDK) issue.

Intel PF driver will not allow guest (VF) to go into promiscious mode
since it would allow traffic stealing which is a security violation.