intel / intel/ethernet-linux-ice
E810 Network Card Traffic Refresh in Seconds
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Description
Intel Corporation Ethernet Controller E810-XXV driver 1.16.3 under Debian 12.5 (6.1.0-31-amd64) doesn't support NIC traffic refresh in seconds, after downgrading to 1.13.7, it is back to normal.
Observed phenomenon using `netperf` to hit the flow test, found using `sar -n DEV 1` monitoring found per second data anomaly `%ifutil=195.30`, and try to use `cat /sys/class/net/eth0/statistics/tx_bytes` found every 2 seconds refresh. So using `sar -n DEV 2` the data returned to normal.
My machine information is as follows:
```
root@host:/home/name# uname -a
Linux host.***.****.*** 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64 GNU/Linux
root@host:/home/name# cat /etc/debian_version
12.5
root@host:/home/name# ethtool -i eth0
driver: ice
version: 1.16.3
firmware-version: 4.30 0x8001af27 1.3429.0
expansion-rom-version:
bus-info: 0000:27:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
root@host:/home/name# lspci -nn | grep -i eth
0000:27:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)
0000:27:00.1 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)
0000:28:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)
0000:28:00.1 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)
```
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