Re: [dpdk-dev] Problems running netvsc multiq

[Stephen Hemminger <stephen@networkplumber.org>]

On Fri, 30 Nov 2018 14:06:52 -0500 (EST)
Mohammed Gamal <mmorsy@redhat.com> wrote:

> ----- Stephen Hemminger <stephen@networkplumber.org> wrote:
> > On Fri, 30 Nov 2018 12:04:41 +0100
> > Mohammed Gamal <mgamal@redhat.com> wrote:
> >   
> > > Hi All,
> > > I am having the following errors when I run testpmd with the netvsc
> > > driver and --txq 2 and --rxq 2 options:
> > > 
> > > testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=155456,
> > > size=2176, socket=0
> > > testpmd: preferred mempool ops selected: ring_mp_mc
> > > Configuring Port 0 (socket 0)  
> > > hn_dev_configure():  >>    
> > > hn_rndis_link_status(): link status 0x40020006
> > > hn_subchan_configure(): open 1 subchannels
> > > vmbus_uio_get_subchan(): invalid subchannel id 0
> > > hn_subchan_configure(): open subchannel failed: -5
> > > hn_dev_configure(): subchannel configuration failed
> > > Port0 dev_configure = -5  
> > > hn_dev_rx_queue_release():  >>
> > > hn_dev_rx_queue_release():  >>
> > > hn_dev_tx_queue_release():  >>
> > > hn_dev_tx_queue_release():  >>    
> > > Fail to configure port 0
> > > EAL: Error - exiting with code: 1
> > >   Cause: Start ports failed
> > > 
> > > Multiq support was enabled and kernel module was loaded. The full
> > > command line was:
> > > ./testpmd -l 0-1 -n 2 --log-level=8 --log-level='pmd.*,8' --log-
> > > level='bus.vmbus,8' -- --port-topology=chained --forward-mode=rxonly --
> > > stats-period 1 --eth-peer=0,00:15:5d:1e:20:c0 --txq 2 --rxq 2
> > > 
> > > I am running latest upstream kernel from the Linus tree and latest DPDK
> > > upstream from git.dpdk.org.
> > > 
> > > Could you also reproduce this? If not, what could I be misssing?
> > > 
> > > Regards,
> > > Mohammed  
> > 
> > Investigating now.
> > Does single queue work for  you?  
> 
> Yes it does.

What version of Windows are you running on?  Multi-queue requires WS2016 or later.
The driver is missing a check of NDIS version, will add that.