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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Tim,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Can you take a look at this patch again?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’ve double checked this patch works ok on Jammy and Focal.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">William<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">William Tu <witu@nvidia.com><br>
<b>Date: </b>Wednesday, May 24, 2023 at 10:13 AM<br>
<b>To: </b>kernel-team@lists.ubuntu.com <kernel-team@lists.ubuntu.com><br>
<b>Cc: </b>Bodong Wang <bodong@nvidia.com>, Vladimir Sokolovsky <vlad@nvidia.com>, dann.frazier@canonical.com <dann.frazier@canonical.com>, Paul Blakey <paulb@nvidia.com>, William Tu <witu@nvidia.com>, Chris Mi <cmi@nvidia.com><br>
<b>Subject: </b>[SRU][F,J:linux-bluefield][PATCH v3 0/1] net: openvswitch: fix race on port output<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt">BugLink:
</span><a href="https://bugs.launchpad.net/bugs/2020606"><span style="font-size:11.0pt">https://bugs.launchpad.net/bugs/2020606</span></a><span style="font-size:11.0pt"><br>
<br>
fix race on port output<br>
<br>
* Explain the bug(s)<br>
<br>
there is a race condition on port output<br>
<br>
* brief explanation of fixes<br>
<br>
We found that upstream linux has the same issue and fix<br>
commit 066b86787fa3d97b7aefb5ac0a99a22dad2d15f8<br>
net: openvswitch: fix race on port output<br>
<br>
* How to test<br>
After configuring QoS on BF-3:<br>
Disable all priorities<br>
Set priorities [0, 0, 0, 0, 0, 0, 0, 0]<br>
Remove all policies<br>
Remove all traffic classes<br>
Add policy (policy_name=ND_traffic, traffic_type=RDMA, priority=5, port=20000, dscp=None)<br>
Add policy (policy_name=TCP_traffic, traffic_type=TCP, priority=4, port=26000, dscp=None)<br>
Add traffic class two prio TC with prio_list=[5, 4], min_bw=76, algorithm=ETS<br>
Enable QOS on adapter SLOT 5 Port 1<br>
Restart driver (detach VFs -> restart with devcon -> attach VFs)<br>
<br>
BF-3 sometimes stops responding. need to run it multiple times!<br>
<br>
v3:<br>
use WARN_ON_ONCE instead of DEBUG_NET_WARN_ON_ONCE<br>
<br>
Felix Huettner (1):<br>
net: openvswitch: fix race on port output<br>
<br>
net/core/dev.c | 1 +<br>
net/openvswitch/actions.c | 2 +-<br>
2 files changed, 2 insertions(+), 1 deletion(-)<br>
<br>
-- <br>
2.34.1<o:p></o:p></span></p>
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