Re: Did test ... Re: grub is stuck with an on-board eepro100

[Christoph Plattner]

Ah, you stuck so early ....

I thought you get to that point, where the controller seems to
send, getting no errors, but points are comming...

Do you have an overview of the driver functiuonality ?
Perhaps you can add many grub_printf()s to get a feeling, where
you have the problem. I hope you have luck.
Perhaps I can help you in analysing ...

With friendly regards
Christoph P.


Yedidyah Bar-David wrote:
> 
> On Wed, Feb 06, 2002 at 11:13:23AM +0100, Christoph Plattner wrote:
> > Hello,
> >
> > so I have test result.
> 
> Thanks for your testing, but,
> 
> >
> > Before going in details: The PCI bus master enabling and the
> > `eepro100.c' driver is working OK !!
> > Mr. Okuji has done complete work (including PCI handling).
> >
> > To the test case:
> > I reused the embedded machine with the define problem. This
> > version of prototype board has definitly a problem, if the
> > etherboot driver do not activate the bus master mode.
> >
> > I retried this non-working etherboot version - machine
> > cannot communicate via the LAN, althogh all data and output
> > on the console seems to be ok.
> >
> > Then I tried to boot a current CVS version of GRUB compiled
> > with
> > ../grub/configure --enable-diskless --enable-eepro100
> > --enable-preset-menu=../ep.preset
> 
> Tried now exactly this (all the same except not a serial console),
> both from a floppy and from PXE, and it hangs after printing
> Probing...[Intel EtherExpressPro100]Ethernet addr: xx:xx:xx:xx:xx:xx
> 
> This version doesn't even print "." every few seconds.
> 
> My hardware: An Intel STL2 board, on-board eepro100 whose chip
> is labeled:
> 
> GD82559
> L132LX21
> 
> What should I further try to debug?
> 
> Thanks,
> 
>         Didi
> 
> >
> > and a preset menu:
> >
> > # serial console setup
> > serial --unit=0 --port=0x3f8 --speed=19200
> > terminal --timeout=0 serial
> >
> > # setup network
> > bootp
> >
> > I used a floppy boot notto have influence of etherboot, and
> > of course I did the boot after power off/on, not to have
> > bus master enabled by other influences a boot before.
> >
> > GRUB boots from floppy and loads the menu from net (after
> > bootp, etc....) --> PASS !
> >
> > So your problem is another EEPRO100 chip or a other problem
> > case. The PCI setup and eepro100 driver seems to work on
> > the quite new 82559ER chip.
> >
> > Bye
> > Christoph
> >
> >
> >
> > Yedidyah Bar-David wrote:
> > >
> > > On Wed, Feb 06, 2002 at 02:50:44AM +0900, Yoshinori K. Okuji wrote:
> > > > At Tue, 5 Feb 2002 09:36:39 +0200,
> > > > Yedidyah Bar-David wrote:
> > > > > Of course it's desirable, but is it possible? I don't really know 
> > > > > grub,
> > > > > but isn't the fact that it's written in C, in 32bit, means it would be
> > > > > difficult to call 16 bit APIs? I downloaded the PXE specs, and looked
> > > > > at the pxelinux source (all asm), and don't really know what to do.
> > > > > E.g., how do I write an function in asm that is callable from C?
> > > >
> > > > Please take a look at stage2/asm.S, for example. GRUB can switch
> > > > between real mode and protected mode. Also, note that PXE has an
> > > > interface for protected mode as well.
> > >
> > > I will look at that.
> > >
> > > >
> > > > > I tried Etherboot-5.0.5, and the sympthoms are mostly the same.
> > > > > What else should I try?
> > > >
> > > > Would you like to report the problem to the Etherboot people? Because
> > > > Etherboot is the upstream project of the network drivers, it is
> > > > preferable to fix the problem in Etherboot and propagate the change to
> > > > GRUB afterwards. Furthermore, they are probably better at debugging
> > > > network drivers than us.
> > >
> > > I will.
> > >
> > > >
> > > > Thanks,
> > > > Okuji
> > >
> > >         Didi
> > >
> > > _______________________________________________
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> > > http://mail.gnu.org/mailman/listinfo/bug-grub
> >
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