Possible sge(4)/atphy(4) regression on RELENG_9?

[YongHyeon PYUN]

On Mon, Oct 24, 2011 at 04:43:57PM +0300, Nikolay Denev wrote:
> Hello,
> 
> I've recently upgraded a box running RELENG_8 to RELENG_9 and immediately I noticed much slower network connection.
> Running iperf shows about 20-30Mbits which was almost full GigE (~900Mbits) speed before.
> 
> I'm noticing interface errors :
> 
> [16:37]ndenev at nas:~% netstat -I sge0
> Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
> sge0   1500 <Link#4>      00:0a:e4:86:62:fa 76114295 42197     0 103559806 10324     0
> sge0   1500 10.0.0.0      nas               76109575     -     - 119109557     -     -
> 
> Both the switch and the card show 1000 full-duplex.
> I've tried playing with rxcsum,txcsum,vlanhwtag,tso but disabling even all of them do not change anything.
> I've tried different switch port and changed the cable.
> 
> Here is devinfo for my hardware :
> 
> sge0 pnpinfo vendor=0x1039 device=0x0191 subvendor=0x103c subdevice=0x2a70 class=0x020000
> atphy0 pnpinfo oui=0xc82e model=0x1 rev=0x6 at phyno=0
> 
> Of course all of this can mean hardware problem, I just want to ask if somebody is seeing something similar, since
> there are quite a lot minibus related changes as far as I can see.
> 
> I'll boot RELENG_8 again tomorrow and do a quick test again to verify that this is not a hardware issue.
> 

I don't have sge(4) controller so it would be better to let us know
which revision introduced the regression.  Just looking over the
code change didn't reveal the possible cause.
BTW, I thought sge(4) shall use rgephy(4). Can you also verify
whether sge(4) in stable/8 also use atphy(4)?