David Miller [off-list ref] wrote:

From: Lukas Razik <linux-GLgANOly0l1BDLzU/O5InQ@public.gmane.org>

Date: Fri, 18 Nov 2011 17:42:30 +0000 (GMT)

quoted

 I could apply also your second patch to linux-2.6.39.4 manually. So
 you don't need to write another version.  Now I'll try to test it
 with the new OFED drivers...

Thanks for all of your testing so far.

Hello David!

Oh, no! Please don't thank me. That's as if my grandma would have thanked after I've eaten her tasty cake... :)
I thank you and Roland very much for the fast and professional help! You did a very good job!
I still can't use OpenMPI over the ConnectX adapter (another error) but that's not for the SPARC list I think.

I think you've eliminated the BUG we talk about. :)
Again: I've applied the patch against 2.6.39.4 manually. I can't say if it also works with linux-3.1.1 because of OFED-1.5.4-rc4 .

Now if I run 'ibv_devinfo' I get no kernel BUG messages anymore and my 
system doesn't hang if I use one of the ibv_*_pingpong utilities:
---
cluster1:~# ibv_rc_pingpong -n 1000000
  local address:  LID 0x0006, QPN 0x04004e, PSN 0x411c25, GID ::
  remote address: LID 0x0003, QPN 0x0c004a, PSN 0xc6aa3d, GID ::
8192000000 bytes in 19.59 seconds = 3345.20 Mbit/sec
1000000 iters in 19.59 seconds = 19.59 usec/iter

cluster2:~# ibv_rc_pingpong -n 1000000 cluster1
  local address:  LID 0x0003, QPN 0x0c004a, PSN 0xc6aa3d, GID ::
  remote address: LID 0x0006, QPN 0x04004e, PSN 0x411c25, GID ::
8192000000 bytes in 19.60 seconds = 3344.02 Mbit/sec
1000000 iters in 19.60 seconds = 19.60 usec/iter
---

BTW: If you need someone in the future for testing a SPARC64 patch - just write me!

Regards and have a nice weekend,
Lukas


PS: That's the whole conversation:
http://thread.gmane.org/gmane.linux.drivers.rdma/10157
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