[ofw] ***SPAM*** error between Linux and Windows 2003

[Tzachi Dar]

More than that, applications can also use ipoib and SDP in order to
interop between windows and Linux.
 
Thanks
Tzachi


________________________________

	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Fab Tillier
	Sent: Monday, March 31, 2008 8:34 PM
	To: Smith, Stan; Ben Shapiro; ofw at lists.openfabrics.org
	Subject: RE: [ofw] ***SPAM*** error between Linux and Windows
2003
	
	

	Actually, that's not quite true.  If you use an app that uses
the RDMA CM then Stan is correct, due to there not being an RDMA CM in
the Windows stack.  However if an app is using the IB CM directly,
things will interop just fine if the application keeps its wire protocol
the same.

	 

	-Fab

	 

	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Smith, Stan
	Sent: Monday, March 31, 2008 10:25 AM
	To: Ben Shapiro; ofw at lists.openfabrics.org
	Subject: RE: [ofw] ***SPAM*** error between Linux and Windows
2003

	 

	Plain and simple - Linux and Windows can not successfully
communicate over IB QPs unless you are using the DAPL socket CM
provider.

	The problem is differences in the CM wire protocols between
Linux & Windows; specifically format and handling of private data.

	 

	If your application were to exchange QP information over sockets
and both sides set identical QP attributes, and transitioned QP states
manually (all of what a CM does), then you can communicate Linux to
Windows over IB QPs. Not a recommended approach, highly prone to errors.

	 

	This problem is being addressed by Sean Hefty as he is migrating
a variant of Linux rdma_cm into the Windows IB stack.

	The work is ongoing and not scheduled to be ready until
Aug/Sept. time frame.

	 

	stan.

	 

	
________________________________


	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Ben Shapiro
	Sent: Monday, March 31, 2008 5:58 AM
	To: ofw at lists.openfabrics.org
	Subject: [ofw] ***SPAM*** error between Linux and Windows 2003

	Has anyone run into  this problem before:

	 

	> I was attempting to do some Infiniband testing between a
Windows 2003 

	> server and a SLES10 box using ib_send_bw. I got some error 

	> messages/statuses. Is there any documentation out there where
I could 

	> look up the error messages?

	> 

	> I tried it both ways and here are the error message I got (not
sure 

	> which was which way):

	> 

	> Completion wth error at client:

	> 

	> Failed status 12: wr_id 1 syndrom 0x81 Scnt=300 ccnt=0

	> 

	> Completion wth error at client:

	> 

	> Failed status 9: wr_id 1 syndrom 0x81

	> Scnt=1000 ccnt=0

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