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