Re: AHCI problem with hotplug

[Tony Battersby <tonyb@cybernetics.com>]

Robert Hancock wrote:
> Tejun Heo wrote:
>   
>> Hello,
>>
>> Tony Battersby wrote:
>>     
>>> No luck.  After "setpci -s 1f.2 92.b=7f" with the disk unplugged, lspci
>>> shows register 0x92 = 0x0f.  After plugging in the disk, this changes to
>>> 0x92 = 0x1f, but still no interrupt, and still no hotplug event.
>>>       
>> Aieee... I've run out of ideas then.  :-(
>>
>>     
>
> Tried reloading the ahci module after making that change? Maybe it needs 
> an AHCI reset before it takes effect or something..
>
>   
Still no luck.

boot with no drive attached
plug in drive
modprobe ahci
setpci
modprobe -r ahci
modprobe ahci

I get the following messages:

ahci 0000:00:1f.2: version 3.0
ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
ahci 0000:00:1f.2: forcing PORTS_IMPL to 0xf
ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode
ahci 0000:00:1f.2: flags: 64bit ncq pm led clo pio slum part 
ahci 0000:00:1f.2: setting latency timer to 64
scsi12 : ahci
scsi13 : ahci
scsi14 : ahci
scsi15 : ahci
ata13: SATA max UDMA/133 abar m1024@0xea000400 port 0xea000500 irq 506
ata14: SATA max UDMA/133 abar m1024@0xea000400 port 0xea000580 irq 506
ata15: SATA max UDMA/133 abar m1024@0xea000400 port 0xea000600 irq 506
ata16: SATA max UDMA/133 abar m1024@0xea000400 port 0xea000680 irq 506
ata13: SATA link down (SStatus 0 SControl 0)
ata14: SATA link down (SStatus 0 SControl 0)
ata15: SATA link down (SStatus 0 SControl 0)
ata16: SATA link down (SStatus 0 SControl 0)

Tony