Re: Problems running netvsc multiq

[Stephen Hemminger <stephen@networkplumber.org>]

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?