Date: Wed, 11 Sep 2013 09:15:15 +0900 From: Yonghyeon PYUN <pyunyh@gmail.com> To: Guido Falsi <mad@madpilot.net> Cc: freebsd-net@freebsd.org Subject: Re: re0 not working at boot on -CURRENT Message-ID: <20130911001515.GA3145@michelle.cdnetworks.com> In-Reply-To: <522FABE5.4090805@madpilot.net> References: <51DC726D.6040601@madpilot.net> <20130710070431.GE2753@michelle.cdnetworks.com> <51DD9E15.7070609@madpilot.net> <20130906061521.GB3070@michelle.cdnetworks.com> <522A3E50.8080801@madpilot.net> <20130910021502.GA2962@michelle.cdnetworks.com> <522FABE5.4090805@madpilot.net>
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On Wed, Sep 11, 2013 at 01:31:49AM +0200, Guido Falsi wrote: > On 09/10/13 04:15, Yonghyeon PYUN wrote: > >On Fri, Sep 06, 2013 at 10:42:56PM +0200, Guido Falsi wrote: > >>On 09/06/13 08:15, Yonghyeon PYUN wrote: > >>>On Wed, Jul 10, 2013 at 07:47:01PM +0200, 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@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. > >>>> > >>>>I worked around the problem till now using an USB ethernet adapter, > >>>>always wanted to report this problem, but I've been lazy :) > >>>> > >>> > >>>Would you try attached patch and let me know whether it makes any > >>>difference? > >>> > >> > >>Hi! > >> > >>Thanks for looking into this and sorry for the delay in reporting back. > >> > >>Unluckily the patch does not solve nor mitigates the problem. Symptoms > >>are very similar. > > > >[...] > > > >>Only real difference is the re_eri_read timeout. It did not output that > >>error message before. > > > >Oops, sorry. It seems there is logic error in the diff. > >Try attached one again. > > > > Hi, > > This patch shows the same behavior as the unpatched kernel: [...] > I'd like to note that if I perform a tcpdump from the other machine > (which is also the dns server) I do see the packets getting out as usual > from this machine, and replies being sent. So the problem seems to be to > receive packets, while sending them works fine. Hmm, I thought the diff may reset internal RX filter but it seems it has no effect. If I find a clue I'll let you know. BTW, I guess the diff have showed IC revision of MAC. Could you show me the output of driver? Thanks for testing!
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