re0 not working at boot on -CURRENT

[Guido Falsi]

On 07/19/13 03:58, Chris H wrote:
>>> On 07/10/13 19:47, Guido Falsi wrote:
>>>> On 07/10/13 09:04, Yonghyeon PYUN wrote:
>>>>> On Tue, Jul 09, 2013 at 10:28:29PM +0200, Guido Falsi wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I have a PC with an integrate re ethernet interface, pciconf identifies
>>>>>> it like this:
>>>>>>
>>>>>> re0 at pci0:3:0:0: class=0x020000 card=0x11c01734 chip=0x816810ec rev=0x07
>>>>>> hdr=0x00
>>>>>>
>>>>>> I'm running FreeBSD current r252261.
>>>>>>
>>>>>> As stated in the subject after boot the interface does not work
>>>>>> correctly.
>>>>>>
>>>>>> Using tcpdump on another host I noticed that packets (ICMP echo requests
>>>>>> for example) do get sent, and replies generated by the other host, but
>>>>>> the kernel does not seem to see them. Except that every now and then
>>>>>> some packet does get to the system.
>>>>>>
>>>>>> I'm seeing packet 7, 27, 47, 66, 86, 106, 125, 144, 164, 183 and so on
>>>>>> from a ping which has been running for some time. Just about one every
>>>>>> twenty. Some pattern is showing up.
>>>>>>
>>>>>> this is the output of ifconfig re0 after boot:
>>>>>>
>>>>>> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
>>>>>> 1500
>>>>>>
>>>>>> options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
>>>>>>
>>>>>>           ether 00:19:99:f8:d3:0b
>>>>>>           inet 172.24.42.13 netmask 0xffffff00 broadcast 172.24.42.255
>>>>>>           inet6 fe80::219:99ff:fef8:d30b%re0 prefixlen 64 scopeid 0x2
>>>>>>           nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>>>>>>           media: Ethernet autoselect (100baseTX <full-duplex>)
>>>>>>           status: active
>>>>>>
>>>>>> If I just touch any interface flag with ifconfig, anyone, tso, -txcsum
>>>>>> -rxcsum, it starts working flawlessly. It keeps working also if I
>>>>>> perform the opposite operation with ifconfig afterwards, so it is not
>>>>>> the flag itself fixing it.
>>>>>>
>>>>>> This is an ifconfig after performing this exercise(it's the same, since
>>>>>> I disabled txcsum and reactivated it in this instance):
>>>>>>
>>>>>> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
>>>>>> 1500
>>>>>>
>>>>>> options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
>>>>>>
>>>>>>           ether 00:19:99:f8:d3:0b
>>>>>>           inet 172.24.42.13 netmask 0xffffff00 broadcast 172.24.42.255
>>>>>>           inet6 fe80::219:99ff:fef8:d30b%re0 prefixlen 64 scopeid 0x2
>>>>>>           nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>>>>>>           media: Ethernet autoselect (100baseTX <full-duplex>)
>>>>>>           status: active
>>>>>>
>>>>>> I don't know much about FreeBSD network drivers so i can't make theories
>>>>>> about this. I hope someone has an idea what the problem could be.
>>>>>>
>>>>>> I'm available for any further information needed, test, experiment and
>>>>>> so on.
>>>>>
>>>>> Could you show me dmesg output(re(4) and rgephy(4) only)?
>>>>
>>>> re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit Ethernet> port
>>>> 0xd000-0xd0ff mem 0xf2104000-0xf2104fff,0xf2100000-0xf2103fff irq 17 at
>>>> device 0.0 on pci3
>>>> re0: Using 1 MSI-X message
>>>> re0: turning off MSI enable bit.
>>>> re0: Chip rev. 0x2c800000
>>>> re0: MAC rev. 0x00000000
>>>> re0: Ethernet address: 00:19:99:f8:d3:0b
>>>> miibus0: <MII bus> on re0
>>>> rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
>>>> rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
>>>> 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master,
>>>> 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow,
>>>> 1000baseT-FDX-flow-master, auto, auto-flow
>>>>
>>>> Also, I'm loading this as a module, but, for as much as I know, this
>>>> should not make any difference.
>>>>
>>>>
>>>>> Did it ever work or you see the issue only on CURRENT?
>>>>
>>>> Never worked on this machine (I own it since the last days of February).
>>>>
>>>> I only installed current on it. If needed I can find time to test a
>>>> recent 9.x snapshot on it.
>>>
>>> Sorry for the delay.
>>>
>>> I tested with a 9.2 PRERELEASE snapshot and it shows the same behavior
>>> it shows on CURRENT.
>>>
>>> Any further tests or things I can do to help diagnose this problem?
>>>
>>> --
>>> Guido Falsi <mad at madpilot.net>
>> Greetings,
>>   I may be just groping here, but I notice in your ifconfig(8) output:
>>>>>>           nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>> ________________________________________^^^^^^^^^^
>> While you may have explicitly disabled it; my output (also re0) reads:
>> nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
>>
>> Just saying, cause I'm not experiencing your issue(s), and mine is also an onboard
>> NIC.

I noticed that too, but it's only on the IPv6 interface, I'm using only 
IPv4 at this time. Also, it works fine after the "ifconfig re0 <flag>" 
(flag being any from tso, -rxcsum, -txcsum etc) with that IFDISABLED active.

I'm seeing that IFDISABLED on all the IPV6 options of all the interfaces 
of the machines I manage.

>>
>> --chris
> P.S. There were also recent changes to rc(8) regarding the syntax of ifconfig.
>>

Uhm, I'll check, I can't test a newer -current right now, but I will do 
in a few weeks at most.

-- 
Guido Falsi <mad at madpilot.net>