Heh, actually I'm not having a problem...
The original poster was having problems with two PCI ethernet cards, whose
IRQ's were identical. Of course Linux doesn't like this.
I mentioned that he had to move one of the PCI cards to another slot to
change IRQ allocations, since obviously he had placed both cards into
interlinked slots.
This prompted people to speak up about "merely setting things in the bios"
to which I responded that slot-wise IRQ allocation is hard wired. That is
you can change the IRQ used but the two slots he used would ALWAYS have this
problem since they are wired together.
I expected a rash of people trying to contradict this, so far I only had
one... heh.
The 3C509 is an ISA card with PNP capabilities so the point is rather moot.
Thanks though.
-JMS
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jozef Glonek
Sent: Thursday, December 07, 2000 7:25 PM
To: [EMAIL PROTECTED]
Subject: Re: [newbie] Resolving resource conflicts in Mandrake 7.2
complete
Hey Jose,
I know the 3c509 can has 2 modes : pnp or non-pnp. The surest way is a
little dos utility (not windos) you can find at :
ftp.3com.com/pub/nic/3c509/3c509x2.exe .
If you really wants to do it in Linux you could try :
http://www.scyld.com/diag/3c5x9setup.html
With these programs you should be able to see, and change, the current
settings of your card(s).
It's quite possible that afterwards you have to disable in bios the irq's
you have given to your 2 nic's. But I'm not quite sure of that.
Joglon
----- Original Message -----
From: Jose M. Sanchez <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, December 07, 2000 9:19 AM
Subject: RE: [newbie] Resolving resource conflicts in Mandrake 7.2 complete
> I knew sooner or later I'd get a bite on this one...
>
> No, IRQ allocation is set by the BIOS (or the OS) during boot.
>
> While you can set WHICH irq is allocated to a group of cards, YOU CANNOT
set
> individual IRQ's for a particular card.
>
> Huh? Sure I can, you say...
>
> NO!
>
> PCI cards are hardwired to the IRQ service levels. Normally more than once
> card is wired to each line. Thus you'll have a pair of PCI slots (or in
some
> cases up to three) which share the SAME IRQ's.
>
> No matter what you do with the BIOS you'll be unable to disable the
sharing.
>
> Say you have a NIC card using IRQ-10 in slot two, and a NIC card in Slot 5
> which you discover also is sharing the same IRQ.
>
> Linux doesn't like this... ok, so you go into the bios and try to set the
> IRQ allocation for slot two... well guess what happens, it also changes
for
> slot 5!
>
> If you are lucky you will not have a sharing issue, if not all your slots
> are filled.
>
> In the original posters machine, all his slots are full and he cannot get
> around his two NICs using the same IRQ. He can move one of them to another
> slot, possibly causing another sharing situation.
>
> Under certain conditions sharing is ok, so by moving his cards around he
can
> fix the problem.
>
> Though your milage may vary depending upon driving conditions...
>
> -JMS
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Abraham Pinzur
> Sent: Wednesday, December 06, 2000 10:43 AM
> To: [newbie] Linux-Mandrake
> Subject: RE: [newbie] Resolving resource conflicts in Mandrake 7.2
> complete
>
>
>
> > In most computers IRQ allocation on PCI cards is SLOT dependant.
>
> My Award BIOS lets me manually set the IRQ assigned to each slot.
>
> - Av -
>
> --
> Abraham P. (Av) Pinzur
> [EMAIL PROTECTED]
> http://www.crispgraphics.com/~newav
>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Jose M. Sanchez
> > Sent: Wednesday, 06 December, 2000 02:34
> > To: [EMAIL PROTECTED]
> > Cc: [EMAIL PROTECTED]
> > Subject: RE: [newbie] Resolving resource conflicts in Mandrake 7.2
> > complete
> >
> >
> >
> > In most computers IRQ allocation on PCI cards is SLOT dependant.
> >
> > I'm sure a few people here will think otherwise, but it's true.
> >
> > You can change the IRQ both cards will use, but the change will occur in
> > unison... I.E. both will go to 10 at the same time, etc.
> >
> > What you need to do, is move one of the cards to another PCI card slot.
> >
> > Some vendors now provide "maps" of the IRQ allocations on a per slot
> > basis...
> >
> > I wish they all would to clarify things for a lot of people...
> >
> > For example the AGP slot and the first slot (closest to the AGP slot)
> > normally share the same IRQ no matter what you do.
> >
> > Slot two w/slot 5, etc... actual hardware may vary...
> >
> > -JMS
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Mark Lee
> > Sent: Tuesday, December 05, 2000 2:27 PM
> > To: '[EMAIL PROTECTED]'
> > Subject: [newbie] Resolving resource conflicts in Mandrake 7.2 complete
> >
> >
> > Hi,
> >
> > I'm new to the list and have a question regarding resource conflicts in
> > Mandrake 7.2 Complete.
> >
> > I have a system that I built, to act as a gateway/firewall for my cable
> > modem. The components are as follows :
> >
> > ASUS P5A B motherboard with 1010 Bios version
> > 64MB PC 100 RAM
> > Diamond Viper 550 PCI video
> > Creative 24X IDE CD ROM
> > Creative SB 16 ISA card
> > 2 x 3COM 3c509B TX PCI NIC cards
> >
> > My problem is that when I look in DrakConf at the NIC properties there
are
> > Splat marks (!) on both NIC cards. A look at the properties reveals that
> > both cards are attempting to use the same memory resources (both
> > are set to
> > use IRQ9). The change resources button is grayed out so it
> > doesn't look like
> > I can set the properties (or test different resources) here.
> >
> > I'm guessing that I need to change something in the BIOS. Does anyone
have
> > any suggestions on the best way to get round this problem ?
> >
> > Thanks, in advance,
> >
> > Mark Lee
> >
> >
>
>
>
>
