Date: Mon, 24 Oct 2011 10:52:52 -0700 From: YongHyeon PYUN <pyunyh@gmail.com> To: Nikolay Denev <ndenev@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: Possible sge(4)/atphy(4) regression on RELENG_9? Message-ID: <20111024175252.GB4663@michelle.cdnetworks.com> In-Reply-To: <C9E571B9-DD8E-40D7-A3D2-5D461E3ABB5B@gmail.com> References: <C9E571B9-DD8E-40D7-A3D2-5D461E3ABB5B@gmail.com>
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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@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)?
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