Date: Thu, 23 Feb 2012 13:33:44 -0800 From: YongHyeon PYUN <pyunyh@gmail.com> To: sbruno@freebsd.org Cc: freebsd-net@freebsd.org Subject: Re: bge(4) failure, Dell 12G hardware, BCM5720C Message-ID: <20120223213344.GC13815@michelle.cdnetworks.com> In-Reply-To: <1329958728.78750.6.camel@powernoodle-l7.corp.yahoo.com> References: <1329958728.78750.6.camel@powernoodle-l7.corp.yahoo.com>
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On Wed, Feb 22, 2012 at 04:58:48PM -0800, Sean Bruno wrote: > Trying some hackery today in my netboot environment with the Dell 12G > R620. I had to disable some bios calls in bios.c after reviewing an > email from Doug Ambrisko, and I see a pretty hard failure of bge(4) on > stable/7 with yahoo modifications on i386. > > I've tried disabling msi via: > ==== //depot/yahoo/ybsd_7/src/sys/dev/bge/if_bge.c#49 > - /home/seanbru/ybsd_7/src/sys/dev/bge/if_bge.c ==== > 5633c5633 > < sc->bge_msi = 1; > --- > > sc->bge_msi = 0; > > This quieted a lot of errors but the interface still appears to be non > functional. > > > http://people.freebsd.org/~sbruno/dell_12g_bgesysctl.txt > http://people.freebsd.org/~sbruno/dell_12g_pciconf.txt > http://people.freebsd.org/~sbruno/dell_12g_dmesg.txt > > > Sean As you see ukphy(4) was attached to bge2 so it may cause various issues. Is bge2 ASF/IPMI enabled interface? It seems ASF handling in bge(4) causes more trouble on recent controllers. Unfortunately disabling ASF may also trigger other problems like NMI. I believe bge(4) should always honor ASF/IMPI firmware instead of relying on hw.bge.allow_asf tunable and have to strictly follow firmware handshake sequence. Just ignoring ASF/IMPI firmware seems to confuse firmware. Unfortunately all these information is undocumented and fixing it requires real hardware access.
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