vswitch_sample_cbdma/vm2vm_fwd_test_with_two_cbdma_channels: forward 8k packet failed when relaunch dpdk-vhost

dpdk-dev [email protected] 1 participant 1 message Aug 4, 2021

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2021-08-04 07:01 UTC #0 lore raw

https://bugs.dpdk.org/show_bug.cgi?id=772

            Bug ID: 772
           Summary: [dpdk-21.08]
                    vswitch_sample_cbdma/vm2vm_fwd_test_with_two_cbdma_cha
                    nnels: forward 8k packet failed when relaunch
                    dpdk-vhost
           Product: DPDK
           Version: 21.08
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: vhost/virtio
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

Environment
DPDK version:
21.08-rc2:02e077f35dbc9821dfcb32714ad1096a3ee58d08
Other software versions: name/version for QEMU, OVS, etc. Repeat as required.
OS: Ubuntu 20.04.2 LTS/Linux 5.11.16-051116-generic
Compiler: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04) Hardware platform: Intel(R) Xeon(R) Platinum 8280M CPU @ 2.70GHz NIC hardware: Controller XL710 for 40GbE QSFP+ [8086:1583] FVL-40g NIC firmware & driver:
driver: i40e
version: 5.11.16-051116-generic
firmware-version: 8.30 0x8000a4ae 1.2926.0
Test Setup
Steps to reproduce
List the steps to reproduce the issue.

1. Bind 1 40G NIC port and 2 CBDMA to igb_uio
dpdk-devbind.py --force --bind=igb_uio 0000:af:00.0 0000:80:04.0 0000:80:04.1

2. Start the dpdk-vhost x86_64-native-linuxapp-gcc/examples/dpdk-vhost -c 0x30000000 -n 4 -a 0000:af:00.0 -a 0000:80:04.0 -a 0000:80:04.1 -- -p 0x1 --mergeable 1 --vm2vm 1 --dma-type ioat --stats 1 --socket-file ./vhost-net0 --socket-file ./vhost-net1 --dmas [txd0@0000:80:04.0,txd1@0000:80:04.1] --client

3. Start virtio-user0:
x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4
--file-prefix=testpmd0 --no-pci --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,packed_vq=1,server=1 -- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1

4. Start virtio-user1:
x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 32,33 -n 4
--file-prefix=testpmd1 --no-pci --vdev=net_virtio_user0,mac=00:11:22:33:44:11,path=./vhost-net1,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,server=1 -- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1

5. Set fwd mode and start tx_first on virtio-user0:
set fwd mac
start tx_first
stop
set eth-peer 0 00:11:22:33:44:11
start

6. Set fwd mode and start tx_first and send 8k packets on virtio-user1:
set fwd mac
set eth-peer 0 00:11:22:33:44:10
stop

Show the output from the previous commands.

1. After execute setp 6, the stats on virtio-user1 as follows:

testpmd> show port stats all
######################## NIC statistics for port 0 ########################
RX-packets: 62880 RX-missed: 0 RX-bytes: 503040000
RX-errors: 0
RX-nombuf: 0
TX-packets: 62912 TX-errors: 0 TX-bytes: 503296000 Throughput
(since last show)

  Rx-pps:       113595          Rx-bps:   7270099464
  Tx-pps:       113595          Tx-bps:   7270099464

############################################################################

2. After execute setp 13, the stats on virtio-user1 as follows:

testpmd> show port stats all
######################## NIC statistics for port 0 ########################
RX-packets: 32 RX-missed: 0 RX-bytes: 256000
RX-errors: 0
RX-nombuf: 0
TX-packets: 32 TX-errors: 0 TX-bytes: 256000 Throughput
(since last show)

  Rx-pps:            0          Rx-bps:            0
  Tx-pps:            0          Tx-bps:            0

############################################################################

Expected Result
Explain what is the expected result in text or as an example output:

1. After execute setp 6, the stats on virtio-user1 expected as follows:

  Rx-pps:       113595          Rx-bps:   7270099464
  Tx-pps:       113595          Tx-bps:   7270099464

############################################################################

2. After execute setp 13, the stats on virtio-user1 expected as follows:

  Rx-pps:       113595          Rx-bps:   7270099464
  Tx-pps:       113595          Tx-bps:   7270099464

############################################################################

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