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This is really an IBTA issue to resolve and to insure that backward
compatibility with existing applications is maintained. Hence, this
exercise of who is broken or not is inherently flawed in that one cannot
comprehend all implementations that may exist. Therefore, the spec should
use either a new version number or a reserved bit to indicate that there
is a defined format to the private data portion or not. This
is no different than what is done in other technologies such as
PCIe. Those applications that require the existing semantics will
be confined to the existing associated infrastructure. Those that
want the new IP semantics set the bit / version and operate within the
restricted private data space available. It is that
simple.<br><br>
Mike<br><br>
<br>
At 07:31 AM 10/20/2005, Jimmy Hill wrote:<br><br>
</font><blockquote type=cite class=cite cite=""><font size=2>A Linux
uDAPL-based system infrastructure application I am working on at IBM
currently depends on 64-bytes of Private Data for Connect and Accept as
well.</font><font size=3> <br><br>
</font><font size=2>-- jimmy</font><font size=3> <br><br>
<br><br>
<br>
</font><font size=2>Oracle currently depends on 64 bytes of private data
for connect and accept. </font><font size=3><br>
<br><br>
----- Original Message ----- <br>
<b>From:</b>
</font><a href="mailto:arkady@netapp.com"><font size=3 color="#0000FF"><u>
Kanevsky, Arkady</a></u></font><font size=3> <br>
<b>To:</b>
</font><a href="mailto:arlin.r.davis@intel.com">
<font size=3 color="#0000FF"><u>Davis, Arlin
R</a></u></font><font size=3> ;
</font><a href="mailto:dat-discussions@yahoogroups.com">
<font size=3 color="#0000FF"><u>dat-discussions@yahoogroups.com</a></u>
</font><font size=3> ;
</font><a href="mailto:iod00d@hp.com"><font size=3 color="#0000FF"><u>
Grant Grundler</a></u></font><font size=3> <br>
<b>Cc:</b>
</font><a href="mailto:swg@infinibandta.org"><font size=3 color="#0000FF">
<u>swg@infinibandta.org</a></u></font><font size=3> ;
</font><a href="mailto:openib-general@openib.org">
<font size=3 color="#0000FF"><u>openib-general@openib.org</a></u></font>
<font size=3> <br>
<b>Sent:</b> Wednesday, October 19, 2005 11:31 AM <br>
<b>Subject:</b> RE: [dat-discussions] RE: [openib-general] Re: iWARP
emulationprotocol <br><br>
</font><font size=2 color="#0000FF">Arlin,</font><font size=3> <br>
</font><font size=2 color="#0000FF">just to clarify, Intel MPI will not
have problems with useing less than 64 bytes</font><font size=3> <br>
</font><font size=2 color="#0000FF">of private data.</font><font size=3>
<br>
</font><font size=2 color="#0000FF">If a solution will provide you with
48 bytes of private data will it be sufficient?</font><font size=3> <br>
</font><font size=2 color="#0000FF">Arkady</font><font size=3> <br>
<br>
<br>
</font><font size=2>Arkady
Kanevsky
email:
</font><a href="mailto:arkady@netapp.com"><font size=2 color="#0000FF"><u>
arkady@netapp.com</a></u></font><font size=3> <br>
</font><font size=2>Network
Appliance
phone: 781-768-5395</font><font size=3> <br>
</font><font size=2>375 Totten Pond
Rd.
Fax: 781-895-1195</font><font size=3> <br>
</font><font size=2>Waltham, MA
02451-2010 central
phone: 781-768-5300</font><font size=3> <br>
</font><font face="Times New Roman, Times" size=3> </font> <br><br>
<font face="Tahoma" size=2>-----Original Message-----<b><br>
From:</b> Davis, Arlin R
[<a href="mailto:arlin.r.davis@intel.com" eudora="autourl">
mailto:arlin.r.davis@intel.com</a>] <b><br>
Sent:</b> Wednesday, October 19, 2005 11:30 AM<b><br>
To:</b>
</font><a href="mailto:dat-discussions@yahoogroups.com">
<font face="Tahoma" size=2 color="#0000FF"><u>
dat-discussions@yahoogroups.com</a></u></font><font face="Tahoma" size=2>
; Grant Grundler<b><br>
Cc:</b>
</font><a href="mailto:swg@infinibandta.org">
<font face="Tahoma" size=2 color="#0000FF"><u>swg@infinibandta.org</a></u>
</font><font face="Tahoma" size=2>;
</font><a href="mailto:openib-general@openib.org">
<font face="Tahoma" size=2 color="#0000FF"><u>
openib-general@openib.org</a></u></font><font face="Tahoma" size=2><b><br>
Subject:</b> RE: [dat-discussions] RE: [openib-general] Re: iWARP
emulationprotocol<br>
</font><font size=3><br>
</font><font size=2 color="#000080">Arkady,</font><font size=3> <br>
</font><font size=2 color="#000080"> </font><font size=3> <br>
</font><font size=2 color="#000080">Intel MPI (real consumer of uDAPL)
has no problem with this change.</font><font size=3> <br>
</font><font size=2 color="#000080"> </font><font size=3> <br>
</font><font size=2 color="#000080">-arlin</font><font size=3> <br>
</font><font size=2 color="#000080"> </font><font size=3> <br>
<div align="center"><br>
<hr>
</div>
<br>
</font><font face="Tahoma" size=2><b>From:</b>
dat-discussions@yahoogroups.com
[<a href="mailto:dat-discussions@yahoogroups.com" eudora="autourl">
mailto:dat-discussions@yahoogroups.com</a>] <b>On Behalf Of </b>Kanevsky,
Arkady<b><br>
Sent:</b> Wednesday, October 19, 2005 6:40 AM<b><br>
To:</b> Grant Grundler; Caitlin Bestler<b><br>
Cc:</b> Roland Dreier; swg@infinibandta.org;
dat-discussions@yahoogroups.com; openib-general@openib.org<b><br>
Subject:</b> [dat-discussions] RE: [openib-general] Re: iWARP emulation
protocol</font><font size=3> <br>
</font><font face="Times New Roman, Times" size=3> </font> <br>
<font face="Courier New, Courier" size=2>Grant,<br>
The developers of the application(s) in questions are aware of the<br>
discussion.<br>
I will leave it to them to respond.<br><br>
I bring the discussion point at the weekly DAT Collaborative meeting<br>
which we have every Wednesday.<br><br>
I appologize that the DAT Collaborative charter does not allow<br>
to submit contribution without joining DAT Collaborative.<br>
But this is no different from Linux not accepting any contrubutions<br>
without proper license.<br>
Byt be rest assure that as a Chair I bring the concerns<br>
and suggestions stated in email discussion at the DAT meetings.<br><br>
Arkady<br><br>
Arkady
Kanevsky
email: arkady@netapp.com<br>
Network
Appliance
phone: 781-768-5395<br>
375 Totten Pond
Rd.
Fax: 781-895-1195<br>
Waltham, MA
02451-2010 central
phone: 781-768-5300<br><br>
<br><br>
> -----Original Message-----<br>
> From: Grant Grundler
[<a href="mailto:iod00d@hp.com" eudora="autourl">mailto:iod00d@hp.com</a>
] <br>
> Sent: Tuesday, October 18, 2005 8:02 PM<br>
> To: Caitlin Bestler<br>
> Cc: Grant Grundler; Roland Dreier; Kanevsky, Arkady; <br>
> swg@infinibandta.org; dat-discussions@yahoogroups.com; <br>
> openib-general@openib.org<br>
> Subject: Re: [openib-general] Re: iWARP emulation protocol<br>
> <br>
> <br>
> On Tue, Oct 18, 2005 at 04:40:54PM -0700, Caitlin Bestler
wrote:<br>
> > > Roland (and the rest of us) would like to see someone name
a<br>
> > > real consumer of the proposed interface. ie who depends on
<br>
> > > this change?<br>
> > > Then the dependency for that use/user can be discussed and
<br>
> > > appropriate tradeoffs made. Make sense?<br>
> > <br>
> > Unfortunately not every application that is under <br>
> development, or even <br>
> > deployed, can be discussed in a google-searchable public <br>
> forum. That <br>
> > especially applies to user-mode development.<br>
> <br>
> Well, this is open source. While I don't want to preclude <br>
> closed source developement, it's usually necessary to have an <br>
> open source consumer that any open source developer can test
with.<br>
> <br>
> > So I could have actually tested such applications and still not
be <br>
> > free to cite them here.<br>
> <br>
> Understood. I'm not asking *you* to cite one unless you<br>
> happen to own one of the consumers. <br>
> <br>
> > With any luck some of them<br>
> > are following the discussion and will jump in on their own.
<br>
> > Unfortunately, since they are developing to uDAPL they are
<br>
> unlikely to <br>
> > be following this discussion.<br>
> <br>
> It doesn't help that the DAT yahoo-groups.com mailing list is <br>
> rejecting my replies. It would be helpful if someone <br>
> following this forum could share Roland's question with DAT <br>
> mailing list if it didn't make it there already and possibly <br>
> explain why naming a consumer is necessary.<br>
> <br>
> hth,<br>
> grant<br>
> <br>
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