Re: Ports not detected by IGB_UIO in DPDK 1.7.1 in QEMU_KVM environment

[Bruce Richardson <bruce.richardson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

On Fri, Nov 07, 2014 at 08:31:34PM +0530, Manoj Viswanath wrote:
> Hi Bruce,
> 
> I was not doing anything specific for binding the NICs to IGB_UIO (like
> invoking "dpdk_nic_bind.py" script explicitly) when using my application
> with DPDK 1.6.0. The e1000 devices assigned via virt-manager to the VM were
> automatically getting picked up and initialized by IGB_UIO within each VM.
> 
> The same is not working with DPDK 1.7.1 now.
> 
> I tried exporting the "dpdk_nic_bind.py" script into my VM (running DPDK
> 1.7.1) and tried to check the status. The emulated devices were shown as
> neither bound to kernel nor to IGB_UIO as evident from below output:-
> 
> <--------------------------------------------------------------------------------------------------->
> Network devices using DPDK-compatible driver
> ============================================
> <none>
> 
> Network devices using kernel driver
> ===================================
> 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio
> 
> Other network devices
> =====================
> 0000:00:04.0 '82540EM Gigabit Ethernet Controller' unused=igb_uio
> 0000:00:05.0 '82540EM Gigabit Ethernet Controller' unused=igb_uio
> <--------------------------------------------------------------------------------------------------->
> 
> When i tried to forcefully bind the NICs using the "--bind=igb_uio" option

Was there any output of the dpdk_nic_bind script? What does the output of
it with --status show afterwards?

Regards,
/Bruce