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Date: Fri, 25 Aug 2006 01:56:43 -0700 (PDT)
From: Parav Pandit <paravpandit@yahoo.com>
Subject: pci_id_table and mid_idsel?
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Hi,
   
  Can someone please explain me pci_irq_table and how to select the value of min_idsel , max_idsel for my 85xx boards?
   
  I am facing issues in registering the interrupt handler.
   
  On what basis we have to select the min_idsel and max_idsel value??
   
  Currently common_swizzle function retuns slot number 11, if I hard-code the value of 11 in the min_idsel and max_idsel because I have only one slot, I am able to register the interrupt handler.
   
  PCI_SLOT in common_swizzle returns 11 because device function number (devfn) has value of 88  ( I am wondering why 88 instead of from 0-7).
  (( 88>> 8) && 0x1f) = 11
   
  Since max functions we can have 8. (0-7). Why OS assign the value of 88 inside?
  Configuration transaction uses only 3 bits of function number in the CONFIG_ADDRESS as per PCI local bus specification 2.2.
   
  Regards,
  Parav Pandit
   

 		
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<div>Hi,</div>  <div>&nbsp;</div>  <div>Can someone please explain me pci_irq_table and how to select the value of min_idsel , max_idsel for my 85xx boards?</div>  <div>&nbsp;</div>  <div>I am facing issues in registering the interrupt handler.</div>  <div>&nbsp;</div>  <div>On what basis we have to select the min_idsel and max_idsel value??</div>  <div>&nbsp;</div>  <div>Currently common_swizzle function retuns slot number 11, if I hard-code the value of 11 in the min_idsel and max_idsel because I have only one slot, I am able to register the interrupt handler.</div>  <div>&nbsp;</div>  <div>PCI_SLOT in common_swizzle returns 11 because device function number (devfn) has value of 88&nbsp; ( I am wondering why 88 instead of from 0-7).</div>  <div>(( 88&gt;&gt; 8) &amp;&amp; 0x1f) = 11</div>  <div>&nbsp;</div>  <div>Since max functions we can have 8. (0-7). Why OS assign the value of 88 inside?</div>  <div>Configuration transaction uses only 3 bits of function number in the
 CONFIG_ADDRESS as per PCI local bus specification 2.2.</div>  <div>&nbsp;</div>  <div>Regards,</div>  <div>Parav Pandit</div>  <div>&nbsp;</div><p>&#32;
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