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SubjectRe: PCI-PCI bridges mess in 2.4.x
On Thu, Nov 09, 2000 at 01:03:36AM +0300, Ivan Kokshaysky wrote:
> But actually I'm concerned that all this code doesn't work at all -
> see reports from Michal Jaegermann (the bridge acts as if it drops
> config space transactions randomly).

I have no idea what Michal is seeing. It does, however, work
just dandy on my rawhide:

-+-[01]-+-01.0
| +-02.0-[02]----00.0
| +-04.0
| \-04.1
\-[00]-+-01.0
+-02.0
\-05.0

01:02.0 PCI bridge: Digital Equipment Corporation DECchip 21050 (rev 02) \
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- \
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- \
<TAbort- <MAbort- >SERR- <PERR-
Latency: 248, cache line size 10
Bus: primary=01, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00009000-00009fff
Memory behind bridge: 02300000-023fffff
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

02:00.0 SCSI storage controller: Q Logic ISP1020 (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ \
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- \
<TAbort- <MAbort- >SERR- <PERR-
Latency: 248, cache line size 10
Interrupt: pin A routed to IRQ 40
Region 0: I/O ports at 200009000 [size=256]
Region 1: Memory at 0000000202310000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 0000000202300000 [disabled] [size=64K]

Whee! We're back in Bootsville.


r~
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