CURRENT: net/igb broken

[Sean Bruno]

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On 09/21/15 23:23, O. Hartmann wrote:
> On Mon, 21 Sep 2015 21:13:18 +0000 Eric Joyner <ricera10 at gmail.com>
> wrote:
> 
>> If you do a diff between r288057 and r287761, there are no
>> differences between the sys/dev/e1000, sys/modules/em, and
>> sys/modules/igb directories. Are you sure r287761 actually
>> works?
> 
> I'm quite sure r287761 works (and r287762 doesn't), double checked
> this this morning again. I also checked r288093 and it is still not
> working.
> 
> The ensure that I'm not the culprit and stupid here:
> 
> I use a NanoBSD environment and the only thing that gets exchanged,
> is the underlying OS/OS revision. The configuration always stays
> the same. The base system for all of my tests is built from a clean
> source - (deleted obj/ dir, clean, fresh build into obj/ for every
> test I ran).
> 
> I realised a funny thing. Playing around with enabling/disabling
> TSO (I have been told that could be the culprit in an earlier Email
> from this list) with the commend sequence:
> 
> ifconfig igb1 down ifconfig igb1 -tso ifconfig igb1 up ifconfig
> igb1 down ifconfig igb1 tso ifconfig igb1 up . . .
> 
> while a ping is pinging in the background a remote host connected
> to that specific interface, the ping does work for a while and dies
> then after a round trip of roughly 10 - 20. I can reproduce this.
> 
> is that observation of any help?
> 
> Regards,
> 
> oh
> 
>> 
>> On Mon, Sep 21, 2015 at 1:58 AM O. Hartmann
>> <ohartman at zedat.fu-berlin.de> wrote:
>> 
>>> On Sat, 19 Sep 2015 11:23:44 -0700 Sean Bruno
>>> <sbruno at freebsd.org> wrote:
>>> 
> 
> 
> On 09/18/15 10:20, Eric Joyner wrote:
>>>>>> He has an i210 -- he would want to revert
>>>>>> e1000_i210.[ch], too.
>>>>>> 
>>>>>> Sorry for the thrash Sean -- it sounds like it would be a
>>>>>> good idea for you should revert this patch, and Jeff and
>>>>>> I can go look at trying these shared code updates and igb
>>>>>> changes internally again. We at Intel really could've
>>>>>> done a better job of making sure these changes worked
>>>>>> across a wider variety of devices.
>>>>>> 
>>>>>> - Eric
> 
> I've reverted the changes to head.  I'll reopen the reviews and we
> can proceed from there.
> 
> sean
> 
> 
>>>>>> 
>>>>>> On Fri, Sep 18, 2015 at 9:50 AM Sean Bruno
>>>>>> <sbruno at freebsd.org <mailto:sbruno at freebsd.org>> wrote:
>>>>>> 
>>>>>> 
>>>>>>> 
>>>>>>> r287762 broke the system
>>>>>> 
>>>>>> 
>>>>>> Before I revert this changeset *again* can you test
>>>>>> revert r287762 from if_igb.c, e1000_82575.c and
>>>>>> e1000_82575.h *only*
>>>>>> 
>>>>>> That narrows down the change quite a bit.
>>>>>> 
>>>>>> sean _______________________________________________ 
>>>>>> freebsd-current at freebsd.org
>>>>>> <mailto:freebsd-current at freebsd.org> mailing list 
>>>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-current
>>>>>> To unsubscribe, send any mail to 
>>>>>> "freebsd-current-unsubscribe at freebsd.org 
>>>>>> <mailto:freebsd-current-unsubscribe at freebsd.org>"
>>>>>> 
>>> 
>>> I'm now on r288057 on that specific machine, supposedly
>>> reverted changes that seemingly has been identified as the
>>> culprit. Still NO change in behaviour!
>>> 
>>> r287761 works with the same configuration on igb (i210), any
>>> further does not. Not ping/connect from the outside, no
>>> ping/connect from the inside. Tried different protocols (SAMBA,
>>> ssh, LDAP, DNS). Affected is/are only boxes with the igb driver
>>> and i210 chipset (we do not have other chips covered by igb).
>>> 
>>> Regards, Oliver
>>> 
>> _______________________________________________ 
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> 
> 


For my entertainment (and HPS's), can you run HEAD and revert r287775?

sean
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