[Intel-wired-lan] [E1000-devel] Traffic not passing for VLAN ID >= 32 on the I350 SR-IOV enabled NIC

[Laurent Dumont]

Strange!

Sorry, not sure what else to validate. I figured you might have been using
vlan filters on the VF directly but you see to use them as bare VF.

With a vlan specified at the VF level, it would have shown something like
vf 19 MAC fa:16:3e:d3:f7:f0, vlan 65, spoof checking on, link-state auto,
trust on

I do wonder if there is a vlan limit on the VF side. 4096 is a IEEE
standard max for VLANs because it's a 12 bit field in the ethernet frame
but it could be lower for the SRIOV part.

Can you try vlan ID 60 to 91?

On Thu, Jul 29, 2021 at 5:37 AM Yuvaraj Ranganathan <
yranganathan at juniper.net> wrote:

> Hi Laurent,
>
> Thanks for your help.
>
>
> Below is the information of SR-IOV interface, where VF 2 is directly
> mapped to VM interface.
>
>
>
> root at local-node:~# ip link show heth-0-1
>
> 5: heth-0-1: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP,LOWER_UP> mtu 9192
> qdisc mq state UP mode DEFAULT group default qlen 1000
>
>     link/ether 58:00:bb:aa:ee:49 brd ff:ff:ff:ff:ff:ff
>
>     vf 0 MAC aa:81:c7:6f:b4:0a, spoof checking on, link-state auto, trust
> on
>
>     vf 1 MAC 16:26:97:40:0f:86, spoof checking on, link-state auto, trust
> on
>
>     vf 2 MAC 58:00:bb:aa:ee:60, spoof checking on, link-state auto, trust
> on
>
>     vf 3 MAC 22:28:fa:f4:68:1a, spoof checking on, link-state auto, trust
> on
>
> root at local-node:~#
>
> On configuring the VLAN >=32 on the VM interface and tried sending
> outgoing traffic, there is no packet captured in tcpdump at
> SR-IOV(heth-0-1) interface. In case of VLAN <= 31, the outgoing packet
> captured in tcpdump at heth-0-1 interface.
>
> You help is always appreciated!
>
>
> Thanks,
>
> Yuvaraj.
>
>
>
> *From: *Laurent Dumont <laurentfdumont at gmail.com>
> *Date: *Thursday, 29 July 2021 at 7:41 AM
> *To: *Yuvaraj Ranganathan <yranganathan at juniper.net>
> *Cc: *e1000-devel at lists.sourceforge.net <e1000-devel at lists.sourceforge.net>,
> intel-wired-lan at lists.osuosl.org <intel-wired-lan at lists.osuosl.org>,
> Pushp Saurav <psaurav at juniper.net>
> *Subject: *Re: [E1000-devel] Traffic not passing for VLAN ID >= 32 on the
> I350 SR-IOV enabled NIC
>
> *[External Email. Be cautious of content]*
>
>
>
> Can you show the output of
>
>
>
> ip link show $SRIOV_INT_NAME_HERE
>
>
>
> Are you seeing any traffic reaching inside the VM if you tcpdump there?
>
>
>
> On Tue, Jul 27, 2021 at 10:07 AM Yuvaraj Ranganathan via E1000-devel <
> e1000-devel at lists.sourceforge.net> wrote:
>
> Hi Team,
>
> With the SR-IOV enabled on I350 NIC which has 4 VF’s, on configuring VLAN
> ID from range 1 to 31 on the VM interface, network traffic is fine and no
> issues. When trying to create an interface with VLAN ID >= 32 on the VM,
> traffic is not passing to that interface and as per HW specs, VLAN ID’s
> from 1 to 4096 are supported.
>
> VM’s interface is directly mapped to one of the VF on I350 NIC. I am using
> IGB PF driver version 5.7.2(latest).
>
> Could somebody please help!
>
> Thanks in advance,
> Yuvaraj.
>
>
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