[openib-general] problems with loading ib_mthca

[Christian Guggenberger]

Hi,

I am in between of setting up a small, 2 node environment for testing
openib.

I've got two machines (Sun V20z, Dual Opteron 248), with a 23108 (128MB)
Tavor card each. Both systems were running IBGD previous (without major
problems)

While I got everything working on one machine (based on 2.6.12.5 and a
svn checkout Aug, 23rd), the very same kernel fails to load ib_mthca on
the other machine. 

Logs:

ib_mad: Unknown parameter `ib_outs_mad_recv_entries'
ib_mthca: Unknown symbol ib_unregister_mad_agent
ib_mthca: Unknown symbol ib_post_send_mad
ib_mthca: Unknown symbol ib_register_mad_agent

The following odd difference of both machine's 'lspci -vv' output looks
suspicious:


        Subsystem: Mellanox Technologies MT23108 InfiniHost HCA
        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-
-       Interrupt: pin A routed to IRQ 10
+       Interrupt: pin A routed to IRQ 28
        Region 0: Memory at e9900000 (64-bit, non-prefetchable)
[size=1M]
        Region 2: Memory at ea000000 (64-bit, prefetchable) [size=8M]
        Region 4: Memory at f0000000 (64-bit, prefetchable) [size=128M]
@@ -207,5 +205,5 @@
        Capabilities: [60] Message Signalled Interrupts: 64bit+
Queue=0/5 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] PCI-X non-bridge device.
-               Command: DPERE- ERO- RBC=1 OST=1
+               Command: DPERE- ERO- RBC=3 OST=1
                Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-,
DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-


The working one has pin A routed to IRQ 28, the faulty one to IRQ 10.
As both machines are essentially the same (including BIOS etc.), I don't
know what's wrong here. 


Maybe someone at openib has a clue.

cheers.
 - Christian