Date: Sat, 26 Nov 2011 16:39:03 +0200 From: Nikolay Denev <ndenev@gmail.com> To: freebsd-net@freebsd.org Subject: Re: Possible sge(4)/atphy(4) regression on RELENG_9? Message-ID: <D4802FF0-5AB3-4322-9AA5-271E15C00CD2@gmail.com> In-Reply-To: <0DF73F37-3E46-4F7D-AA6B-B7EB2F2276AB@gmail.com> References: <C9E571B9-DD8E-40D7-A3D2-5D461E3ABB5B@gmail.com> <20111024175252.GB4663@michelle.cdnetworks.com> <0DF73F37-3E46-4F7D-AA6B-B7EB2F2276AB@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Oct 24, 2011, at 9:18 PM, Nikolay Denev wrote: > > On Oct 24, 2011, at 8:52 PM, YongHyeon PYUN wrote: > >> 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)? > > I've just checked my logs and I can confirm that it was atphy(4) even in stable/8. > > Sep 26 15:55:19 nas kernel: atphy0: <Atheros F1 10/100/1000 PHY> PHY 0 on miibus0 > Sep 26 15:55:19 nas kernel: atphy0: none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto > > I'll post more info when I try again stable/8 on this hardware. > > Thanks! > Just for the sake of completeness I'm reporting that the problem turned out to be not hardware related. The thread "TCP Reassembly Issues" in freebsd-stable list describes the issue. Thanks.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?D4802FF0-5AB3-4322-9AA5-271E15C00CD2>