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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 - [dpdk-22.11.4] vhost_virtio_user_interrupt_with_power_monitor/perf_wake_up_split_ring_vhost_user_core_with_l3fwd_power_sample：virtio-user can't receive packet"
href="https://bugs.dpdk.org/show_bug.cgi?id=1338">1338</a>
</td>
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<tr>
<th>Summary</th>
<td>[dpdk-22.11.4] vhost_virtio_user_interrupt_with_power_monitor/perf_wake_up_split_ring_vhost_user_core_with_l3fwd_power_sample：virtio-user can't receive packet
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>22.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<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>vhost/virtio
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>linglix.chen@intel.com
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">[Environment]
DPDK version: dpdk 22.11.4-rc3: 4307659a90
OS: Ubuntu 22.04.3 LTS/5.15.0-87-generic
Compiler: gcc version 11.4.0
Hardware platform: SPR(Intel(R) Xeon(R) Platinum 8490H)
NIC hardware: Ethernet Controller E810-C for QSFP 1592
NIC firmware: 4.40 0x8001c2f1 1.3492.0
NIC kdriver: ice-1.13.3_dirty
[Test Setup]
Steps to reproduce
1. ssh root@dpdk-yingya-spr2
Compile DPDK::
meson -Dexamples=l3fwd-power x86_64-native-linuxapp-gcc
ninja -C x86_64-native-linuxapp-gcc
2.bind NIC port to vfio-pci,
./usertools/dpdk-devbind.py -b vfio-pci 45:00.0
3. Launch virtio-user with server mode::
./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 3-4 -n 8 -a 0000:45:00.0
--vdev net_virtio_user0,path=./vhost-net,server=1,queues=1 -- -i --rxq=1
--txq=1
4. Launch vhost with l3fwd-power::
./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power -l 5-6 -n 8
--file-prefix=l3fwd-pwd_216146_20231228175051 --no-pci --vdev
net_vhost0,iface=./vhost-net,queues=1,client=1 --log-level='user1,7' -- -p 1
--config='(0,0,5)' --parse-ptype --pmd-mgmt=monitor
5. Start virtio-user::
testpmd>start
6. Sent imix packets from TG
[Show the output from the previous commands]
pktgen: ixia packet generator: run traffic 5s to warm up ...
pktgen: begin traffic ......
tester: scp -v ixiaConfig.tcl root@dpdk-yingya-spr2:~/
pktgen: source ixiaConfig.tcl
pktgen: ixStopTransmit portList
pktgen: traffic completed.
pktgen: begin traffic ......
tester: scp -v ixiaConfig.tcl root@dpdk-yingya-spr2:~/
pktgen: source ixiaConfig.tcl
pktgen: begin get port statistic ...
pktgen: stat getRate statAllStats 1 3 4
pktgen: stat cget -framesReceived
pktgen: stat cget -bitsReceived
pktgen: stat cget -oversize
pktgen: throughput: pps_rx 0.000000, bps_rx 0.000000
[Expected Result]
check packets can fwd back with correct payload.
Regression
Is this issue a regression: (Y/N) Y
test on SPR only
The commit a07736eb68 will build failed
8c291d8778 tested failed (vhost: fix checking virtqueue access in stats API)
a07736eb68 build failed (vhost: fix missing lock protection in power monitor
API) (/lib/vhost/vhost.c:2171:13: error: unused variable ‘ret’
[-Werror=unused-variable])
adae353b36 tested passed (vhost: fix check on virtqueue access in in-flight
getter)
bad commit 8c291d87783d2e22e6234cddc23bee27d0f14dae (HEAD -> 22.11)
Author: Maxime Coquelin <<a href="mailto:maxime.coquelin@redhat.com">maxime.coquelin@redhat.com</a>>
Date: Fri Oct 20 10:48:04 2023 +0200
vhost: fix checking virtqueue access in stats API
[ upstream commit a004501a147889d608008ab6f18355e9b0ceff65 ]
Acquiring the access lock is not enough to ensure
virtqueue's metadata such as vring pointers are valid.
The access status must also be checked.
Fixes: be75dc99ea1f ("vhost: support per-virtqueue statistics")
Signed-off-by: Maxime Coquelin <<a href="mailto:maxime.coquelin@redhat.com">maxime.coquelin@redhat.com</a>>
Acked-by: David Marchand <<a href="mailto:david.marchand@redhat.com">david.marchand@redhat.com</a>>
</pre>
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