[dpdk-users] net/i40e VF state does not track PF state

[David Harton (dharton)]

From: Laurent Dumont <laurentfdumont at gmail.com>
Sent: Monday, September 30, 2019 12:25 PM
To: David Harton (dharton) <dharton at cisco.com>
Cc: users at dpdk.org
Subject: Re: [dpdk-users] net/i40e VF state does not track PF state

Hey David,

Another possibility is that you are shutting down the PF through the compute with " ip link"?
<dharton> Yes, but shouldn’t matter the VF state should follow the PF state.  For example, if I shut a ixgbe PF the VFs go down.

It seems similar to a behavior we saw with sriov port where the host OS seems to lose a portion of control over the nic.

We could shutdown the port from the compute but we still saw the traffic being forwarded from the VF towards the TOR.

You can try to physically shutdown the port from the TOR or unplugging the cable.

We are running 7.6 hosts with the 2.3.2 driver.
<dharton> I assume DPDK is packaged with that release...which version is it?

Thanks,
Dave

Thanks!



On Mon, Sep 30, 2019, 12:14 PM David Harton (dharton) <dharton at cisco.com<mailto:dharton at cisco.com>> wrote:
Yes, the VFs are set to the default ‘link-state auto’:

ip link show enp9s0f1
15: enp9s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 90:e2:ba:ac:16:19 brd ff:ff:ff:ff:ff:ff
    vf 0 MAC 52:54:00:63:12:97, spoof checking on, link-state auto, trust off, query_rss off
    vf 1 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 2 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 3 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 4 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 5 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 6 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 7 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 8 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off
    vf 9 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, trust off, query_rss off


> From: Laurent Dumont <laurentfdumont at gmail.com<mailto:laurentfdumont at gmail.com>>
> Sent: Monday, September 30, 2019 11:53 AM
> To: David Harton (dharton) <dharton at cisco.com<mailto:dharton at cisco.com>>
> Cc: users at dpdk.org<mailto:users at dpdk.org>
> Subject: Re: [dpdk-users] net/i40e VF state does not track PF state
>
> Hey David,
>
> From the compute, can you check if the VF "link-state" status is set to "auto"? That parameter is required for the physical > state of the PF to be reflected by the VF.
>
> Thanks
>
>
>
> > On Mon, Sep 30, 2019, 11:12 AM David Harton (dharton) <mailto:dharton at cisco.com<mailto:dharton at cisco.com>> wrote:
> > I'm using i40evf based interfaces using DPDK 18.11.
> >
> > The host is rhel 7.3 and the PF driver details are:
> > ethtool -i enp9s0f1
> > driver: i40e
> > version: 1.5.10-k
> > firmware-version: 6.01 0x800036b8 0.385.33
> > expansion-rom-version:
> > bus-info: 0000:09:00.1
> > supports-statistics: yes
> > supports-test: yes
> > supports-eeprom-access: yes
> > supports-register-dump: yes
> > supports-priv-flags: yes
> >
> > When the PF is shut the VFs are not showing a 'down' state.
> >
> > Is this a known issue?  Any tips on how to debug?
> >
> > Thanks,
> > Dave