From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: Charlie Li <charlie.li@gmail.com>
Cc: "users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] Why testpmd fails to start in VM while l2fwd works in the same VM?
Date: Mon, 29 Aug 2016 13:29:37 +0800 [thread overview]
Message-ID: <a50f4321-4ebc-f461-d49f-f6f0f0f3856b@intel.com> (raw)
In-Reply-To: <CAO=HJQP_Do3pxVUw+xBmqBXUu9VnvtC3FNQDVxgMA2sDmDvvTA@mail.gmail.com>
These flags are used to compose the configuration, which will be passed
as parameter to rte_dev_configure(). And by default in testpmd, hw-vlan
is enabled, which is not supported by virtio device but can be supported
by other hardware devices.
Thanks,
Jianfeng
On 8/27/2016 1:58 AM, Charlie Li wrote:
> Thanks Jianfeng,
>
> After adding " --txqflags=0xf00 --disable-hw-vlan", testpmd starts to
> work for me.
>
> My follow-up is question is -
>
> Why these flags are required in the VM while not required in the host?
>
> Regards,
> Charlie
>
> On Fri, Aug 26, 2016 at 4:55 AM, Tan, Jianfeng <jianfeng.tan@intel.com
> <mailto:jianfeng.tan@intel.com>> wrote:
>
> Hi Charlie,
>
> > -----Original Message-----
> > From: users [mailto:users-bounces@dpdk.org
> <mailto:users-bounces@dpdk.org>] On Behalf Of Charlie Li
> > Sent: Friday, August 26, 2016 1:28 AM
> > To: users@dpdk.org <mailto:users@dpdk.org>
> > Subject: [dpdk-users] Why testpmd fails to start in VM while
> l2fwd works in
> > the same VM?
> >
> > Hi All,
> >
> > My host and VM both are running Fedora 23.
> >
> > In the host, DPDK (testpmd, l2fwd and l3fwd) works fine.
> >
> > Then I set up OVS with DPDK and pass two (dpdkvhostuser) ports
> to the VM.
> >
> > In the VM, l2fwd works fine, but testpmd fails to start. Pleas
> see the
> > attached screenshot of the VM with error messages.
>
> I do not know how to run testpmd. Just a hint, you need to add "
> --txqflags=0xf00 --disable-hw-vlan" when starting testpmd.
>
> Thanks,
> Jianfeng
>
> >
> > Has anybody seen similar issue in the VM?
> >
> > Thanks,
> >
> > Charlie
>
>
next prev parent reply other threads:[~2016-08-29 5:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-25 17:28 Charlie Li
2016-08-26 7:12 ` Shreyansh Jain
2016-08-26 9:55 ` Tan, Jianfeng
2016-08-26 17:58 ` Charlie Li
2016-08-29 5:29 ` Tan, Jianfeng [this message]
2016-08-29 15:52 ` Charlie Li
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