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<base href="https://bugs.dpdk.org/">
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<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - VLAN filtering bug"
href="https://bugs.dpdk.org/show_bug.cgi?id=1464">1464</a>
</td>
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<tr>
<th>Summary</th>
<td>VLAN filtering bug
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>ethdev
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dmarx@iol.unh.edu
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Hi all,
I've written a test suite for VLAN features on DPDK drivers including
filtering, stripping, and insertion, but I've run into some issues
with Intel and Broadcom NICs. Both are forwarding packets when there are vlan
filter rules in place which should block packet forwarding.
To recreate the environment I'm running the tests on:
drivers: bnxt_en, i40e
Broadcom NIC info:
~$ ethtool -i ens2f0np0
driver: bnxt_en
version: 5.15.0-112-generic
firmware-version: 229.0.141.0/pkg 229.1.123.0
expansion-rom-version:
bus-info: 0000:61:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
./dpdk-testpmd <EAL params> -- -i --portmask=0x3
testpmd> set fwd mac
testpmd> set promisc 0 off
testpmd> vlan set filter on 0
testpmd> rx_vlan add 1 0
testpmd> start
then, I build the following packet and send it to port 0 on testpmd:
packet = Ether()/Dot1Q(vlan=2)/Raw(load='xxxxx')
The Mellanox CX-5s show the expected behavior, where a packet with a VLAN tag
not in the filter list is dropped. However, with the Intel XL710
and Broadcom 57414 NICs, the packet is forwarded regardless of whether its VLAN
tag is in the filter list or not.
Link to the suite:
<a href="https://patches.dpdk.org/project/dpdk/patch/20240618162939.23339-2-dmarx@iol.unh.edu/">https://patches.dpdk.org/project/dpdk/patch/20240618162939.23339-2-dmarx@iol.unh.edu/</a>
Series cover letter:
<a href="https://patches.dpdk.org/project/dpdk/cover/20240614150238.26374-1-dmarx@iol.unh.edu/">https://patches.dpdk.org/project/dpdk/cover/20240614150238.26374-1-dmarx@iol.unh.edu/</a>
Any insight is appreciated.
</pre>
</div>
</p>
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