Re: Supported chipsets with sata_sil24?

[Tejun Heo <htejun@gmail.com>]

John Woznack wrote:
> On Sun, 05 Nov 2006 08:53:15 +0900, Tejun Heo wrote:
> 
>> John Woznack wrote:
>>> Out of curiosity, which Silicon Image chipsets are supported by the
>>> sata_sil24 driver? (3124/3132 obviously,but what about 3512, 3112, 3531,
>>> and 3726?)
>> sata_sil24	: 3124, 3132, 3131, 3531
>> sata_sil	: 3112, 3114, 3512 and some other variants
>>
>> 3726 and 4726 are port multipliers and supported by pending PMP patchset.
> 
> Thanks Tejun. Just what I was looking for.
> 
> After checking out http://linux-ata.org/driver-status.html, I've got Just a
> few more questions: 
> 
> 1. The sata_sil24 shows it supports NCQ. Out of curiosity, how can I tell
> if it's using NCQ? 

It will say something like the following.

   ata1.00: ATA-7, max UDMA7, 312581808 sectors: LBA48 NCQ (depth 31/32)

If your controller doesn't support NCQ, it will say 0/32.  ATM, libata 
caps max supported commands to 31, so you'll see 31/32 for NCQ capable 
drives.

> 2. The sata_sil24 and sata_sil drivers support suspend. Can you explain
> this in more detail? (Like, is it always on or do I have to enable it? Can
> I set the idle timeout-to-suspend somehow? etc.)

If the power management is turned on, those are turned on automatically.

-- 
tejun