From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jaeyong Yoo <jaeyong.yoo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Subject: Using dpdk in KVM guest with sr-iov pass-thru
Date: Tue, 26 Nov 2013 20:55:53 +0900
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Hello,

 

I'm having trouble using l2fwd example on top of KVM guest with sr-iov. Here
goes the detailed description:

 

Symptoms:

If I run l2fwd dpdk-app, this app does not receive any packets. Even worse,

pass-thru-ed device in KVM guest is not receiving any interrupts and more
over,
PF in host-side is not also receiving any packets. If I destroy the KVM
guest, 
then PF starts receiving packets. (which is very wired right?)

 

Env:

-       Sr-iov card: Intel Corporation I350 Gigabit Network Connection (rev
01)

-       DPDK version: dpdk-1.5.1r1

-       KVM installed with the packages in ubuntu server 64-bit

n  Kernel version: 3.11.0-12-generic

-       KVM guest (ubuntu server 64-bit; the same to host)

-       CPU: i7-3770

-       iommu enabled

 

Do you have any similar issues or any comments or pointers?

 

Thanks,

Jaeyong