Re: SATA port multiplier(Marvell 6121 with ahci) and Marvell 4140, simg 3726

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KueiHuan Chen wrote:
> 2008/8/2 Tejun Heo <tj@xxxxxxxxxx>:
>> Mark Lord wrote:
>>> I have exactly zero documentation on those chips,
>>> but they are supposedly AHCI compliant.
>>>
>>> Looking in drivers/ata/ahci.c, one can see that the chips are indeed
>>> supported,
>>> and there the AHCI_HFLAG_NO_PMP is *not* set, so one might expect them
>>> to work
>>> with a port-multiplier already.  ?
>> I bet it's more like nobody tried yet.  :-P
> 
> 
>  Thanks for your explaining, i had tried it already.
> 
>  Port multiplier of Silicon image 3726 is not supported from 2.6.24 to
> 2.6.26 with 6121 and 6145 which using ahci.c  : (
> 
>  Here is the test envirement:
> 
>   Port Multipiler : Silicon image 3726. (Marvell 4140 is not fully
> tested, so i don't listed, but it is the same in arm arch.)
> 
>  arch/kernel   2.6.24        2.6.25       2.6.26
> 
>   arm            Not Work   Not tested   Not tested
> 
>   powerpc     Not Work   Not tested   Not tested
> 
>   x86_64       Not Work   Not Work     Not Work
> 
> 
>  Should we need disable 6121/6145 pmp support in ahci.c until it is
> fully supported?

I'd like to find out why it's failing before disabling it.  Can you
please post the failing log from 2.6.26?

-- 
tejun
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