* PCI I/O space conflict on Ultra 5 with multiple Znyx 346 ethernet interfaces
@ 1998-05-25 23:24 Mark J. Steiglitz
0 siblings, 0 replies; only message in thread
From: Mark J. Steiglitz @ 1998-05-25 23:24 UTC (permalink / raw)
To: ultralinux
I have an Ultra 5 with two Znyx 346 4-port ethernet cards, in PCI slots 1 and
3. Each card has a PCI-to-PCI bridge, thus making the rest of the card its own
PCI bus with 4 devices.
After booting UltraPenguin 1.0.9, I find that each interface card is assigned a
different IRQ and that each port on a given card is assigned a different I/O
base, but that the set of I/O base values for the four ports on one card are
identical to the I/O base assignments for the four ports on the other card.
This conflict prevents one of the cards from being configured properly when
loading the driver.
How can I assign distinct I/O base values to each port or cause the kernel to
do so?
The relevant entries from /proc/pci are as follows:
-------------------------------------------------------------------------------
Bus 2, device 1, function 0:
PCI bridge: DEC DC21152 (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 3, device 4, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001000 [0xfffff9fe02001001].
Non-prefetchable 32 bit memory at 0xfffff9ff00100000 [0xfffff9ff00100000].
Bus 3, device 5, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001080 [0xfffff9fe02001081].
Non-prefetchable 32 bit memory at 0xfffff9ff00102000 [0xfffff9ff00102000].
Bus 3, device 6, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001400 [0xfffff9fe02001401].
Non-prefetchable 32 bit memory at 0xfffff9ff00104000 [0xfffff9ff00104000].
Bus 3, device 7, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001480 [0xfffff9fe02001481].
Non-prefetchable 32 bit memory at 0xfffff9ff00106000 [0xfffff9ff00106000].
-------------------------------------------------------------------------------
Bus 2, device 3, function 0:
PCI bridge: DEC DC21152 (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 4, device 4, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001000 [0xfffff9fe02001001].
Non-prefetchable 32 bit memory at 0xfffff9ff00100000 [0xfffff9ff00100000].
Bus 4, device 5, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001080 [0xfffff9fe02001081].
Non-prefetchable 32 bit memory at 0xfffff9ff00102000 [0xfffff9ff00102000].
Bus 4, device 6, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001400 [0xfffff9fe02001401].
Non-prefetchable 32 bit memory at 0xfffff9ff00104000 [0xfffff9ff00104000].
Bus 4, device 7, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001480 [0xfffff9fe02001481].
Non-prefetchable 32 bit memory at 0xfffff9ff00106000 [0xfffff9ff00106000].
-------------------------------------------------------------------------------
The entire /proc/pci is as follows:
-------------------------------------------------------------------------------
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Sun Microsystems Ultra IIi PCI (rev 0).
Medium devsel. Fast back-to-back capable. Master Capable. Latency$8.
Bus 0, device 1, function 0:
PCI bridge: Sun Microsystems Advanced PCI Bridge (rev 17).
Medium devsel. Fast back-to-back capable. Master Capable. Latency$8.
Min Gnt5.
Bus 2, device 1, function 0:
PCI bridge: DEC DC21152 (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 3, device 4, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001000 [0xfffff9fe02001001].
Non-prefetchable 32 bit memory at 0xfffff9ff00100000 [0xfffff9ff00100000].
Bus 3, device 5, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001080 [0xfffff9fe02001081].
Non-prefetchable 32 bit memory at 0xfffff9ff00102000 [0xfffff9ff00102000].
Bus 3, device 6, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001400 [0xfffff9fe02001401].
Non-prefetchable 32 bit memory at 0xfffff9ff00104000 [0xfffff9ff00104000].
Bus 3, device 7, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 820017d0. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001480 [0xfffff9fe02001481].
Non-prefetchable 32 bit memory at 0xfffff9ff00106000 [0xfffff9ff00106000].
Bus 2, device 3, function 0:
PCI bridge: DEC DC21152 (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 4, device 4, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001000 [0xfffff9fe02001001].
Non-prefetchable 32 bit memory at 0xfffff9ff00100000 [0xfffff9ff00100000].
Bus 4, device 5, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001080 [0xfffff9fe02001081].
Non-prefetchable 32 bit memory at 0xfffff9ff00102000 [0xfffff9ff00102000].
Bus 4, device 6, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001400 [0xfffff9fe02001401].
Non-prefetchable 32 bit memory at 0xfffff9ff00104000 [0xfffff9ff00104000].
Bus 4, device 7, function 0:
Ethernet controller: DEC DC21140 (rev 34).
Medium devsel. Fast back-to-back capable. IRQ 830017d8. Master Capable.
No bursts. Min Gnt .Max Lat@.
I/O at 0xfffff9fe02001480 [0xfffff9fe02001481].
Non-prefetchable 32 bit memory at 0xfffff9ff00106000 [0xfffff9ff00106000].
Bus 0, device 1, function 1:
PCI bridge: Sun Microsystems Advanced PCI Bridge (rev 17).
Medium devsel. Fast back-to-back capable. Master Capable. Latency$8.
Min Gnt5.
Bus 1, device 1, function 0:
Bridge: Sun Microsystems PCI-EBus Bridge (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts. M
in Gnt\x10.Max Lat%.
Non-prefetchable 32 bit memory at 0xfffff9fff0000000 [0xfffff9fff0000000].
Non-prefetchable 32 bit memory at 0xfffff9fff1000000 [0xfffff9fff1000000].
Bus 1, device 1, function 1:
Ethernet controller: Sun Microsystems Happy Meal Ethernet (rev 1).
Medium devsel. Fast back-to-back capable. IRQ c08007e1. Master Capable.
Latency$0. Min Gnt\x10.Max Lat=5.
Non-prefetchable 32 bit memory at 0xfffff9ffe0000000 [0xfffff9ffe0000000].
Bus 1, device 2, function 0:
VGA compatible controller: ATI Mach64 GT (Rage II) (rev 154).
Medium devsel. Fast back-to-back capable. IRQ 818007cf. Master Capable.
No bursts. Min Gnt=8.
Non-prefetchable 32 bit memory at 0xfffff9ffe1000000 [0xfffff9ffe1000000].
I/O at 0xfffff9fe02c00100 [0xfffff9fe02c00101].
Non-prefetchable 32 bit memory at 0xfffff9ffe0008000 [0xfffff9ffe0008000].
Bus 1, device 3, function 0:
IDE interface: CMD 646 (rev 3).
Medium devsel. Fast back-to-back capable. IRQ c00007e0. Master Capable.
Latency$0. Min Gnt=2.Max Lat=4.
I/O at 0xfffff9fe02c00000 [0xfffff9fe02c00001].
I/O at 0xfffff9fe02c00008 [0xfffff9fe02c00009].
I/O at 0xfffff9fe02c00010 [0xfffff9fe02c00011].
I/O at 0xfffff9fe02c00018 [0xfffff9fe02c00019].
I/O at 0xfffff9fe02c00020 [0xfffff9fe02c00021].
-------------------------------------------------------------------------------
--Mark
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1998-05-25 23:24 PCI I/O space conflict on Ultra 5 with multiple Znyx 346 ethernet interfaces Mark J. Steiglitz
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