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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Why not just use the variables always? I would expect the
values that are appropriate for kernel clients would also be appropriate for
user mode clients (but not vice versa).<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"'> Slava Strebkov
[mailto:slavas@voltaire.com] <br>
<b>Sent:</b> Sunday, June 15, 2008 5:13 AM<br>
<b>To:</b> Fab Tillier; Sean Hefty; ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw][patch] mcast garbage collector<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>This part allows specifying different values for timeout and
retrying count.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Slava<o:p></o:p></span></p>
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<hr size=3 width="100%" align=center>
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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"'> Fab Tillier
[mailto:ftillier@windows.microsoft.com] <br>
<b>Sent:</b> Thursday, June 12, 2008 8:53 PM<br>
<b>To:</b> Sean Hefty; Slava Strebkov; ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw][patch] mcast garbage collector</span><o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'>
<div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>@@
-271,8 +274,14 @@<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
sa_mad_data.p_attr = &h_mcast->member_rec;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
ref_al_obj( &h_mcast->obj );<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>-
status = al_send_sa_req(<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>-
&h_mcast->sa_dereg_req, h_mcast->port_guid, 500, 0, &sa_mad_data,
0 );<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+
status = <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+#if
defined( CL_KERNEL )<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+
al_send_sa_req(<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+
&h_mcast->sa_dereg_req, h_mcast->port_guid, g_mc_destr_retr_timeout,
g_mc_dest_retr_count, &sa_mad_data, 0 );<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+#else<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+
al_send_sa_req(<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+
&h_mcast->sa_dereg_req, h_mcast->port_guid, 500, 0, &sa_mad_data,
0 );<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>+#endif<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>This is separate from this patch, but can someone explain this part
to me? The only way joining multicast groups can work is if it’s done in
a sing</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>T</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>le location, like the kernel. Does al_send_sa_req() drop to
the kernel and get filtered?<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'>It drops to the kernel alright, but there is no filtering in
IBAL. If multiple clients register for the same multicast group, that
group will get destroyed when the first client deregisters. Makes it very
hard to have multiple QPs on the same port in the same multicast group.</span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'><o:p></o:p></span></p>
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