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<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'>Short answer: no.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'>Sharing interrupts in PCIe is a normal state of affairs. You’d
have to have a BIOS that allowed you to override that.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'>On the upside, the historical case of sharing interrupts being
bad, both because of drivers that didn’t allow for that and because of the
performance hit, is just that – historical. There is a theoretically
measurable performance hit even under PCIe, but it’s negligibly small. (Or at
least it’s supposed to be. Bad drivers can screw anything up.)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'>Why do you want it to have its own interrupt?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'>-Adam Thompson <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'> <athompso@athompso.net><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'> (204) 291-7950<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Lucida Sans Typewriter";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> roundtable-bounces@muug.mb.ca
[mailto:roundtable-bounces@muug.mb.ca] <b>On Behalf Of </b>Kevin McGregor<br>
<b>Sent:</b> Monday, April 05, 2010 17:36<br>
<b>To:</b> MUUG Roundtable<br>
<b>Subject:</b> [RndTbl] PCIe interrupt assignments<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have an 8-port SATA disk controller in a PCIe slot
(thanks, Trevor!), and it seems to be sharing an interrupt. I'm running Ubuntu
Server 9.10 64-bit. Is there some way to arrange for it to have its own
interrupt, unshared?<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Kevin<o:p></o:p></p>
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