In article <[EMAIL PROTECTED]>, Alan Cox wrote:
>
> > Linux, as near as I can tell, does not yet support PCI token ring
> > adapters, at least not any I have here. Therefore I am using an IBM ISA
>
> We support the Olympic chipset based IBM adapters (ie non lanstreamer)
>
At what kernel level did this (or will this) start? Or do I have to install
an updated version of the driver? Perhaps it would be worth it to order one
of these cards to avoid some of the stuff below...
> > 1. leave IRQ 5 in the PNP range. When I do this, the system boots fine,
> > but my serial port communication through ttyS1 to the UPS is very
> > unreliable. In fact only about 10% of the time will it establish
>
> Did you also change the kernels view of the IRQ used for ttyS1 with
> setserial ? If you didnt then this setup may work when you adjust the
> irq
>
Yes, I am using setserial. Once I do, I get that intermittent connectivity.
Without that I get nothing. I don't know how effective the kernel's
autodiscovery is. It seems to be able to tell if the serial port is there or
not since when the port is disabled in the bios and the add on card is not
installed, the port is not discovered. As soon as the card is installed the
port is discovered, but with the wrong IRQ, which makes me wonder about the
uart and other parameters. I would love it if I could change the kernel's
assumption about the IRQ. Or better yet if the autodiscovery would find the
correct IRQ. The IRQ on the card is set with a jumper...
> > 2. assign IRQ 5 to ISA Legacy resources. When I do this, the boot
> > appears to hang discovering SCSI devices. If I leave it long enough,
> > the tape drive is discovered at every possible SCSI address on the bus
> > and then the process begins to loop.
>
> That sounds like an interrupt isnt being delivered properly.
>
> > What is the interaction of the device discovery process and IRQ's? What
> > driver settings might I be able to use to circumvent this process? Or
> > do I not have any options here?
>
> You are in a maze of twisty little bios options all different. Im afraid
> thats the unfortunate truth. The IRQ routing on a PC is BIOS controlled.
>
I am afraid to say I recognize the reference. Still have an IBM/370 Fortran
source listing for Collosal Cave somewhere. Wonder if IBM would be any help
on this end since they claim to now "officially support linux". They have
been very good with the ServeRAID driver support, but that is an isolated
device.
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Werner (Vern) Kliewer
Sr. Tech. Services Analyst
Mid-Range Support
Manitoba Public Insurance
(204)-985-7745
[EMAIL PROTECTED]
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