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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Leonid,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Is the new ConnectX driver a port from Linux or is it a
ground-up Windows driver? Will it support MSI-X?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>-Fab<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org] <b>On
Behalf Of </b>Leonid Keller<br>
<b>Sent:</b> Wednesday, February 13, 2008 1:45 AM<br>
<b>To:</b> ofw@lists.openfabrics.org<br>
<b>Cc:</b> Alex Naslednikov<br>
<b>Subject:</b> [ofw] Porting OFA stack to WDK<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>The
new ConnectX driver is being developed in WDF environment and requires WDK
tools for its build.</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>While
trying to build OFA stack in WDK environment i've come across a __ptr64
problem.</span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>This
attribute causes the WDK compiler crash in checked x86 environment.</span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Instead
of searching some workaround, i'm going to perform the following
"drastic" solution:</span><o:p></o:p></p>
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<p class=MsoNormal> <span style='font-size:10.0pt;font-family:
"Arial","sans-serif"'>- remove __ptr64 attribute from all the functions of the
stack;</span><o:p></o:p></p>
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<p class=MsoNormal> <span style='font-size:10.0pt;font-family:
"Arial","sans-serif"'>- remove __ptr64 attribute from all the structures except
the Ioctl ones;</span><o:p></o:p></p>
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<p class=MsoNormal> <span style='font-size:10.0pt;font-family:
"Arial","sans-serif"'>- use PtrToPtr64 function while the assignment of __ptr64
Ioctl fields (only in user space);</span><o:p></o:p></p>
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<p class=MsoNormal> <span style='font-size:10.0pt;font-family:
"Arial","sans-serif"'>- remove unnecessary castings, related to __ptr64
attriubute all over the code, if any;</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>The
changes wrt ioctls will be committed separately to facilitate the code review.</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Any
comments/suggestions/objections ?</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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