From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: Problems running netvsc multiq
Date: Tue, 4 Dec 2018 08:48:58 -0800
Message-ID: <20181204084858.03ecdf98@shemminger-XPS-13-9360>
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Cc: Mohammed Gamal <mgamal@redhat.com>, dev@dpdk.org, maxime coquelin
 <maxime.coquelin@redhat.com>, Yuhui Jiang <yujiang@redhat.com>, Wei Shi
 <wshi@redhat.com>
To: Mohammed Gamal <mmorsy@redhat.com>
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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:
> >  =20
> > > Hi All,
> > > I am having the following errors when I run testpmd with the netvsc
> > > driver and --txq 2 and --rxq 2 options:
> > >=20
> > > testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=3D155456,
> > > size=3D2176, socket=3D0
> > > testpmd: preferred mempool ops selected: ring_mp_mc
> > > Configuring Port 0 (socket 0) =20
> > > hn_dev_configure():=C2=A0=C2=A0>>   =20
> > > 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 =3D -5 =20
> > > hn_dev_rx_queue_release():=C2=A0=C2=A0>>
> > > hn_dev_rx_queue_release():=C2=A0=C2=A0>>
> > > hn_dev_tx_queue_release():=C2=A0=C2=A0>>
> > > hn_dev_tx_queue_release():=C2=A0=C2=A0>>   =20
> > > Fail to configure port 0
> > > EAL: Error - exiting with code: 1
> > > =C2=A0 Cause: Start ports failed
> > >=20
> > > Multiq support was enabled and kernel module was loaded. The full
> > > command line was:
> > > ./testpmd -l 0-1 -n 2 --log-level=3D8 --log-level=3D'pmd.*,8' --log-
> > > level=3D'bus.vmbus,8' -- --port-topology=3Dchained --forward-mode=3Dr=
xonly --
> > > stats-period 1 --eth-peer=3D0,00:15:5d:1e:20:c0 --txq 2 --rxq 2
> > >=20
> > > I am running latest upstream kernel from the Linus tree and latest DP=
DK
> > > upstream from git.dpdk.org.
> > >=20
> > > Could you also reproduce this? If not, what could I be misssing?
> > >=20
> > > Regards,
> > > Mohammed =20
> >=20
> > Investigating now.
> > Does single queue work for  you? =20
>=20
> 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.