TRex 3.04 - SRIOV port_mtu setting observation

[Haklat haklat]

Hi,
I have noticed that, at least when using port_mtu setting in trec_cfg.yaml, driver complains about that application (TRex) tries setting this without first stopping port. TRex starts up anyway but issue with setting wanted MTU.

I think, for setting MTU, we need to:
1. stop port
2. set mtu on port

3. start port

eccd@control-plane-dc309-2-mast-n43:~/etxhlat/nfvi_IV/cncf_IV/cncf_R1/NetworkingFunctions/CNIS-2999> kubectl logs trex-intel-cnis-2999-1-0 trex-sriov Wait for downWardAPI - Tue May 28 06:45:38 UTC 2024 Now downwardAPI should be ready for reading - Tue May 28 06:45:43 UTC 2024 iavf_dev_mtu_set(): port must be stopped before configuration iavf_dev_mtu_set(): port must be stopped before configuration ND: TX NS: fd00:1:1058::96,02:e2:fb:ef:56:41 -> fd00:1:1058::1 (retry 0) ND: RX NA: fd00:1:1058::96 <- fd00:1:1058::1, 02:01:01:01:01:02 ND: RX NA: fd00:1:1058::96 <- fd00:1:1058::1, 02:01:01:01:01:02 02:01:01:01:01:02 ND: TX NS: fd00:1:1059::96,02:d4:49:ea:04:b8 -> fd00:1:1059::1 (retry 0) ND: RX NA: fd00:1:1059::96 <- fd00:1:1059::1, 02:01:01:01:01:02 ND: RX NA: fd00:1:1059::96 <- fd00:1:1059::1, 02:01:01:01:01:02 02:01:01:01:01:02 10 second pre-run - purpose ARP learning Port 0 --> Port 1 (Latency PGID packets): Port0 TX packets:19779 Port1 RX packets:19779 Port 1 --> Port 0 (Latency PGID packets): Port1 TX packets:19782 Port0 RX packets:19782 Port xstats (total packets): Port0 good TX packets:4964282 Port1 good RX packets:4964283 Port1 good TX packets:4965285 Port0 good RX packets:4965286 Currently used latency pgids: [1010, 2010, 10010, 20010] Total test duration is 0.0 seconds! Packets Per Second sent per flow direction @ frame size 68 was: 251000 Bandwidth per flow (Megabit/sec): 176.704 Complete statistics written to file /tmp/nfvi-1118.txt. All IPv4 flow PGIDs starting with 1, all IPv6 flow PGIDs stating with 2: Bulk streams: Stream PPS sent TX_packages RX_packages Dropped Stream1011 247225.1 2472251 2472251 0 Stream2011 247225.1 2472251 2472251 0 Stream10011 247275.1 2472751 2472751 0 Stream20011 247275.1 2472751 2472751 0 Latency_stream Duplicats OutOfOrder Seq_high Seq_low Drop Lat_max(us) Lat_min(us) Lat_avg(us) Jitter(us) Stream1010 0 0 0 0 0 31 13 19.00 2 Stream2010 0 0 0 0 0 41 13 26.00 17 Stream10010 0 0 0 0 0 45 13 23.00 1 Stream20010 0 0 0 0 0 45 14 26.00 10