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<DIV><SPAN class=304053520-31032008><FONT face=Arial color=#0000ff size=2>More
than that, applications can also use ipoib and SDP in order to interop between
windows and Linux.</FONT></SPAN></DIV>
<DIV><SPAN class=304053520-31032008><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=304053520-31032008><FONT face=Arial color=#0000ff
size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=304053520-31032008><FONT face=Arial color=#0000ff
size=2>Tzachi</FONT></SPAN></DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> ofw-bounces@lists.openfabrics.org
[mailto:ofw-bounces@lists.openfabrics.org] <B>On Behalf Of </B>Fab
Tillier<BR><B>Sent:</B> Monday, March 31, 2008 8:34 PM<BR><B>To:</B> Smith,
Stan; Ben Shapiro; ofw@lists.openfabrics.org<BR><B>Subject:</B> RE: [ofw]
***SPAM*** error between Linux and Windows 2003<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN style="COLOR: #1f497d">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.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d">-Fab<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: "
Tahoma?,?sans-serif??>From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: " Tahoma?,?sans-serif??>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org]
<B>On Behalf Of </B>Smith, Stan<BR><B>Sent:</B> Monday, March 31, 2008 10:25
AM<BR><B>To:</B> Ben Shapiro; ofw@lists.openfabrics.org<BR><B>Subject:</B> RE:
[ofw] ***SPAM*** error between Linux and Windows
2003<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>Plain and simple - Linux and Windows can not successfully
communicate over IB QPs unless you are using the DAPL socket CM
provider.</SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif??
New Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>The problem is differences in the CM wire protocols
between Linux & Windows; specifically format and handling of private
data.</SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif?? New
Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times> <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>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.</SPAN><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif?? New
Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times> <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>This problem is being addressed by Sean Hefty as he is
migrating a variant of Linux rdma_cm into the Windows IB stack.</SPAN><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif?? New
Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>The work is ongoing and not scheduled to be ready until
Aug/Sept. time frame.</SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times> <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: " color:blue?
Arial?,?sans-serif?;>stan.</SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: "
Roman?,?serif?? New Times><o:p> </o:p></SPAN></P>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif?? New Times>
<HR align=center width="100%" SIZE=2>
</SPAN></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: "
Tahoma?,?sans-serif??>From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: " Tahoma?,?sans-serif??>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org]
<B>On Behalf Of </B>Ben Shapiro<BR><B>Sent:</B> Monday, March 31, 2008 5:58
AM<BR><B>To:</B> ofw@lists.openfabrics.org<BR><B>Subject:</B> [ofw] ***SPAM***
error between Linux and Windows 2003</SPAN><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: " Roman?,?serif?? New
Times><o:p></o:p></SPAN></P>
<P class=MsoNormal>Has anyone run into this problem
before:<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>> I was attempting to do some Infiniband testing between
a Windows 2003 <o:p></o:p></P>
<P class=MsoNormal>> server and a SLES10 box using ib_send_bw. I got some
error <o:p></o:p></P>
<P class=MsoNormal>> messages/statuses. Is there any documentation out
there where I could <o:p></o:p></P>
<P class=MsoNormal>> look up the error messages?<o:p></o:p></P>
<P class=MsoNormal>><o:p> </o:p></P>
<P class=MsoNormal>> I tried it both ways and here are the error message I
got (not sure <o:p></o:p></P>
<P class=MsoNormal>> which was which way):<o:p></o:p></P>
<P class=MsoNormal>><o:p> </o:p></P>
<P class=MsoNormal>> Completion wth error at client:<o:p></o:p></P>
<P class=MsoNormal>><o:p> </o:p></P>
<P class=MsoNormal>> Failed status 12: wr_id 1 syndrom 0x81 Scnt=300
ccnt=0<o:p></o:p></P>
<P class=MsoNormal>><o:p> </o:p></P>
<P class=MsoNormal>> Completion wth error at client:<o:p></o:p></P>
<P class=MsoNormal>><o:p> </o:p></P>
<P class=MsoNormal>> Failed status 9: wr_id 1 syndrom 0x81<o:p></o:p></P>
<P class=MsoNormal>> Scnt=1000
ccnt=0<o:p></o:p></P></DIV></BLOCKQUOTE></BODY></HTML>