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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>Arlin,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>1. Does it mean that existing DAT providers will have
to be modified so they report</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>DAT_NOT_IMPLEMENTED for each
extension?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>2. Why is there DAT_INVALID in
DAT_DTOS?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>3. Do you want to use DAT_EXTENSION_DATA or
DAT_EXT_DATA?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>4. The proposed operations are operation on EP and they
are DTOs.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>Why not define DAT_DTO_EXT_OP instead of
DAT_EXT_OP?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>MY concern is that if these are not DTO then we have a
new event stream type</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>for "extensions" and we need to define rules for this
event stream including</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>ordering rules and interactions with other event
streams, provider attributes</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>for stream mixing and so on...</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>If we restrict extensions to DTO operation
extension we avoid all these issues</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>and simplify APIs. On the negative side these extension
are restrictive.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>5. Memory protection extension for atomic
operations</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>6. error returns for extensions?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=235333815-17012006>Arkady</SPAN></FONT></DIV>
<DIV> </DIV><o:SmartTagType name="Street"
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<P class=MsoNormal align=left><SPAN class=SpellE><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Arkady</SPAN></SPAN><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <SPAN
class=SpellE>Kanevsky</SPAN><SPAN
style="mso-tab-count: 2">
</SPAN>email: <A
href="mailto:arkady@netapp.com">arkady@netapp.com</A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Network
Appliance Inc.<SPAN
style="mso-tab-count: 2">
</SPAN><SPAN class=GramE>phone</SPAN>: 781-768-5395<o:p></o:p></SPAN></P>
<P class=MsoNormal><?xml:namespace prefix = st1 ns =
"urn:schemas-microsoft-com:office:smarttags" /><st1:Street
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tabIndex=0 w:st="on"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">1601
Trapelo Rd. - Suite 16.</SPAN></st1:address></st1:Street><SPAN
style="mso-tab-count: 2"> </SPAN><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Fax:
781-895-1195<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Waltham, MA
02451
central phone: 781-768-5300</SPAN></P></DIV>
<DIV> </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> Davis, Arlin R
[mailto:arlin.r.davis@intel.com] <BR><B>Sent:</B> Monday, January 16, 2006
5:55 PM<BR><B>To:</B> Kanevsky, Arkady; Lentini, James<BR><B>Cc:</B>
dat-discussions@yahoogroups.com; openib-general@openib.org<BR><B>Subject:</B>
[RFC] DAT 2.0 extension proposal<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Arkady,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The attached proposal adds generic
DTO extensions and provider specific atomic operations as follow.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">dat_ep_post_cmp_and_swap()<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">dat_ep_post_fetch_and_add()<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The patch should be ready by
tomorrow.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-arlin<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Courier color=red
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: red; FONT-FAMILY: Courier"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>