Am 06.08.2015 um 00:22 schrieb Rose, Gregory V:
> Stefan,
>
> Could you please send me the output of 'ethtool' and 'ethtool -i' for each
> i40e interface that is experiencing the dropped packets issue?
These are around 100 cards. So i won't post the output for all of them.
As they're all using the same driver and the same firmware - we updated
all of them i hope it's ok to post the output only from one of them.
# ethtool eth2
Settings for eth2:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: No
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10000Mb/s
Duplex: Full
Port: Direct Attach Copper
PHYAD: 0
Transceiver: external
Auto-negotiation: off
Supports Wake-on: g
Wake-on: d
Current message level: 0x0000000f (15)
drv probe link timer
Link detected: yes
# ethtool -i eth2
driver: i40e
version: 1.3.4-k
firmware-version: f4.33.31377 a1.2 n4.42 e191b
bus-info: 0000:03:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
> Also, the system log might help also - dmesg can get that. That'll
give me something to look at.
As this one is pretty long. i pasted dmesg to pastebin:
http://pastebin.com/raw.php?i=7Tjp3eDT
> By the way, have you tried using ethtool to turn adaptive RX and TX off using
> ethtool to see if that has any impact on the dropped packets?
I tested this one:
ethtool -C eth3 adaptive-rx off adaptive-tx off rx-usecs 2 tx-usecs 0
but it has not helped. Still dropped rx packets. While a 2nd system
receiving the same load using ixgbe has no dropped packets.
> That might be an easy test to run.
Thanks!
Greets,
Stefan
> Thanks,
>
> - Greg
>
>> -----Original Message-----
>> From: Stefan Priebe [mailto:[email protected]]
>> Sent: Wednesday, August 05, 2015 11:14 AM
>> To: [email protected]
>> Subject: Re: [E1000-devel] dropped rx with i40e
>>
>>
>> Something i've noticed:
>> ixgbe:
>> Adaptive RX: off TX: off
>> rx-usecs: 1
>> tx-usecs: 0
>>
>> i40e:
>> Adaptive RX: on TX: on
>> rx-usecs: 62
>> tx-usecs: 122
>>
>> Stefan
>>
>> Am 05.08.2015 um 09:02 schrieb Stefan Priebe - Profihost AG:
>>> Hello list,
>>>
>>> we're using the intel X520 cards with the ixgbe driver since a long
>>> time for our cloud infrastructure. We never had a problem with dropped
>>> packets and everything was always fine.
>>>
>>> Since a year we started switching to the X710 cards as they're better
>>> regarding their specs (lower power consumption, lower latency, better
>>> price).
>>>
>>> We've around 100 X710 cards running now and we had a lot of trouble
>>> with them. Back in 2014 there were a firmware bug, then there were
>>> driver problems with bonding and so on.
>>>
>>> Now we have detected a new problem! We're seeing a lot of rx_dropped
>>> packets on all X710 cards while all ixgbe based cards are working fine.
>>>
>>> I've tested the 1.2.48 driver als also the latest 1.3.4-k driver from
>>> 4.2-rc5.
>>>
>>> Can anybody help?
>>>
>>> Greets,
>>> Stefan
>>>
>>
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