bce(4) with IPMI

[Sean Bruno]

On Thu, 2011-10-13 at 13:58 -0700, David Christensen wrote:
> > Ran this on my Dell R410.  I can clearly see that the tool is
> > "disabling" the MFW bit, and that the dell bios interface to the IPMI
> > controller/DRAC is impaired, however ...
> > 
> > The system still thinks that the MFW bit is "ON" and proceeds normally
> > in this case.  The code still fails to detect that MFW is disabled.
> > 
> > In addition, the IPMI driver attaches to "something" and I can poke at
> > it via ipmitool.  So, from the driver perspective, the attempt to detect
> > MFW enabled doesn't work as the chipset still thinks that its "on".
> > 
> > I've commented out the code block that we're trying to work around in
> > the yahoo code base for now.
> 
> I have an R210 and running the uxdiag command definitely disabled 
> management firmware on my system:
> 
> ===[root] ~ # dmesg | grep bce
> bce0: <Broadcom NetXtreme II BCM5716 1000Base-T (C0)> mem 0xda000000-0xdbffffff irq 16 at device 0.0 on pci2
> miibus0: <MII bus> on bce0
> bce0: Ethernet address: b8:ac:6f:87:95:f1
> bce0: ASIC (0x57092008); Rev (C0); Bus (PCIe x4, 2.5Gbps); B/C (5.2.2); Bufs (RX:2;TX:2;PG:8); Flags (SPLT|MSI)
> bce1: <Broadcom NetXtreme II BCM5716 1000Base-T (C0)> mem 0xdc000000-0xddffffff irq 17 at device 0.1 on pci2
> miibus1: <MII bus> on bce1
> bce1: Ethernet address: b8:ac:6f:87:95:f2
> bce1: ASIC (0x57092008); Rev (C0); Bus (PCIe x4, 2.5Gbps); B/C (5.2.2); Bufs (RX:2;TX:2;PG:8); Flags (SPLT|MSI)
> bce0: Gigabit link up!
> bce0: Gigabit link up!
> bce1: Gigabit link up!
> bce1: Gigabit link up!
> ===[root] ~ #
> 
> Dave

Yeah, that was my results as well.  But when I ran Pyun's modifcations
to detect this case, there was no change.  (this was an r410 btw).

Sean