Hi,
We're using XL710 cards on linux 4.4.15 using the latest driver 1.5.19 and
it seems that link detection isn't working correctly.
We've got multiple servers with 2 cards, the first port of every card is
put in to a LACP portchannel with a cisco switch (4500x, 4900m). When we
bring the portchannel down on the cisco side, most of the time only one
card detects the link down. Sometimes none of them, seldom both.
Ethtool detects there something wrong though, look at speed and duplex, but
thinks the link is still up.
I found those 2 mails
http://www.spinics.net/lists/netdev/msg347183.html
http://lists.osuosl.org/pipermail/intel-wired-lan/Week-of-Mon-20160314/004433.html
And enabling linkpolling on those cards fixes the issue. So maybe it should
default be enabled again ?
Thanks,
Wim
Ethtool when the link is UP
Settings for ens5f0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Full
10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: No
Advertised link modes: 1000baseT/Full
10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: external
Auto-negotiation: off
Supports Wake-on: d
Wake-on: d
Current message level: 0x0000000f (15)
drv probe link timer
Link detected: yes
Ethtool when link is down
Settings for ens5f0:
Supported ports: [ ]
Supported link modes: 1000baseT/Full
10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 1000baseT/Full
10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: Unknown!
Duplex: Unknown! (255)
Port: Other
PHYAD: 0
Transceiver: external
Auto-negotiation: off
Supports Wake-on: d
Wake-on: d
Current message level: 0x0000000f (15)
drv probe link timer
Link detected: yes
[ 1.672684] i40e: Intel(R) 40-10 Gigabit Ethernet Connection Network
Driver - version 1.5.19
[ 1.672686] i40e: Copyright(c) 2013 - 2016 Intel Corporation.
[ 1.689126] i40e 0000:0b:00.0: fw 5.0.40043 api 1.5 nvm 5.02 0x80002282
0.0.0
2.159153] i40e 0000:0b:00.0: PCI-Express: Speed 8.0GT/s Width x8
[ 2.189169] i40e 0000:0b:00.0: Features: PF-id[0] VFs: 64 VSIs: 66 QP:
56 RSS FD_ATR FD_SB NTUPLE CloudF DCB VxLAN Geneve NVGRE PTP VEPA
[ 2.204161] i40e 0000:0b:00.1: fw 5.0.40043 api 1.5 nvm 5.02 0x80002282
0.0.0
------------------------------------------------------------------------------
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J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
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