答复: Broadcom NIC, MPTable and APIC ID for HDAMA [PMX:#]

Li-Ta Lo ollie at lanl.gov
Fri Apr 16 16:30:01 CEST 2004


On Fri, 2004-04-16 at 11:21, YhLu wrote:
> That's decided by HW.
> 

Do you mean even the device is behind the PCIX bridge, it's
IRQ is not routed by the APIC on the bridge ?

Ollie

> YH
> 
> -----邮件原件-----
> 发件人: Li-Ta Lo [mailto:ollie at lanl.gov] 
> 发送时间: 2004年4月16日 10:07
> 收件人: Eric Biederman; LinuxBIOS
> 主题: Broadcom NIC, MPTable and APIC ID for HDAMA
> 
> Eric,
> 
> The broadcom nic on hdama is connected behind the 8131.
> So the IRQ should be routed by the APIC on 8131, right ?
> But in the current mptable.c it is
> 
> /* PCI Ints:	     Type	Polarity	      
> 		     Trigger
> 		     Bus ID      PCIDEVNUM|IRQ  APIC ID PIN# */
> 	/* On board nics */
> smp_write_intsrc(mc, mp_INT,   		 
> 		 MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT,
> 		 bus_8131_1, (0x03<<2)|0, 0x02, 0x13);
> smp_write_intsrc(mc, mp_INT,    
> 		 MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT,
> bus_8131_1,
> (0x04<<2)|0, 0x02, 0x13);
> 
> The IRQ is routed by APIC #2 which is in 8111. Is it correct ?
> Why is it still working ?
> 
> Ollie
> 
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