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Subject: Re: [Intel-wired-lan] [REGRESSION] e1000e heavy packet loss on Meteor Lake - 6.14.2 X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On 4/14/2025 3:58 PM, Marek Marczykowski-Górecki wrote: > 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- SERR- 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 > Do you have mei modules running? Can you try if disabling them make things better? > > >> 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 > >