On Mon, Apr 14, 2025 at 03:38:39PM +0300, Lifshits, Vitaly wrote: > Do you see the high packet loss without the virtualization?
I can't check that easily right now, will try later.
> Can you please share the lspci output?
Sure:
00:07.0 Ethernet controller [0200]: Intel Corporation Device [8086:550a] (rev
20)
Subsystem: CLEVO/KAPOK Computer Device [1558:a743]
Physical Slot: 7
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin D routed to IRQ 69
Region 0: Memory at f2000000 (32-bit, non-prefetchable) [size=128K]
Capabilities: [c8] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00000 Data: 0000
Kernel driver in use: e1000e
Kernel modules: e1000e
> Does your switch/link partner support flow control? if it is configurable
> can you try to enable it?
It does support it. Enabling it makes things much worse...
> Do you see any errors in dmesg related to the e1000e driver?
Not really.
dmesg | grep 'e1000e\|ens7':
[ 3.088489] e1000e: Intel(R) PRO/1000 Network Driver
[ 3.088512] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 3.093256] e1000e 0000:00:07.0: Interrupt Throttling Rate (ints/sec) set to
dynamic conservative mode
[ 3.343378] e1000e 0000:00:07.0 0000:00:07.0 (uninitialized): registered PHC
clock
[ 3.718946] e1000e 0000:00:07.0 eth0: (PCI Express:2.5GT/s:Width x1)
d4:93:90:3e:0d:bb
[ 3.718966] e1000e 0000:00:07.0 eth0: Intel(R) PRO/1000 Network Connection
[ 3.719101] e1000e 0000:00:07.0 eth0: MAC: 16, PHY: 12, PBA No: FFFFFF-0FF
[ 3.759444] e1000e 0000:00:07.0 ens7: renamed from eth0
[ 8.632317] e1000e 0000:00:07.0 ens7: NIC Link is Up 1000 Mbps Full Duplex,
Flow Control: None
[ 239.458205] e1000e 0000:00:07.0 ens7: NIC Link is Down
[ 242.485869] e1000e 0000:00:07.0 ens7: NIC Link is Up 1000 Mbps Full Duplex,
Flow Control: Rx/Tx
(you can also see a test with flow control above)
And also ethtool output if useful:
Settings for ens7:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
MDI-X: on (auto)
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
--
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
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