Re: "no MP mapping found" with ZNYX quad ethernet on i386

Bill Sommerfeld writes:
> This looks like a disagreement about bus numbering.
> 
> The PCI configuration code seems to think the bridge device is PCI bus #3:
> 
> pci2 at ppb1 bus 3
> tlp0 at pci2 dev 4 function 0: DECchip 21140A Ethernet, pass 2.2
> pci_intr_map: bus 3 dev 4 func 0 pin 1; line 10
> ...
> tlp1 at pci2 dev 5 function 0: DECchip 21140A Ethernet, pass 2.2
> pci_intr_map: bus 3 dev 5 func 0 pin 2; line 11
> ...
> tlp2 at pci2 dev 6 function 0: DECchip 21140A Ethernet, pass 2.2
> pci_intr_map: bus 3 dev 6 func 0 pin 3; line 11
> ...
> tlp3 at pci2 dev 7 function 0: DECchip 21140A Ethernet, pass 2.2
> pci_intr_map: bus 3 dev 7 func 0 pin 4; line 11
> 
> .. while there are interrupt map table entries for these devices on PCI bus #2:
> 
> ioapic0: int18 attached to pci2 device 4 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
> ...
> ioapic0: int19 attached to pci2 device 5 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
> ioapic0: int16 attached to pci2 device 6 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
> ioapic0: int17 attached to pci2 device 7 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
> 
> ----
> 
> It's not immediately clear to me why the ppb is configured as PCI bus
> #3 rather than #2.

I think the CardBus behind cbb0 (which is "NOT USED because of
unconfigured interrupt") is counted in one case but not the other.
After I removed the CardBus adapter card, the ZNYX quad ethernet card
started working.

As for why cbb0 is "NOT USED because of unconfigured interrupt", that's
probably because of the lack of PCI interrupt fixup evidenced by
the message

  pci_intr_fixup: no compatible PCI ICU found

-- 
Andreas Gustafsson, [email protected]