Re: [patch 3/3] ata: SWNCQ should be enabled by default

[Tejun Heo <htejun@gmail.com>]

Robert Hancock wrote:
> Jeff Garzik wrote:
>> Kuan Luo wrote:
>>> Robert wrote:
>>>> -Hotplug/hot-unplug fails to work properly, hotplug interrupts not 
>>>> raised (seemingly only on certain boards/configurations as I can't 
>>>> duplicate this problem). 
>>>> http://bugzilla.kernel.org/show_bug.cgi?id=8421
>>>>
>>> I occasionly encountered this problem in one port under certain system,
>>> but didn't see this issue under other systems in the same mainboard.
>>> After adding the operation of manually clearing the added/removed
>>> interrupt bit in NV_INT_STATUS_CK804 register in nv_adma_interrupt 
>>> function,  i saw some improvement. The key problem is that no one who 
>>> knows this controller comes to help
>>> to solve these issue.
>>> Given this disadvantage, i think disabling it maybe is a good choice.
>>> I don't know whether we need to continue to provide patch for adma after
>>> disabling adma function.
>>
>> Is there any hope of getting permission for me to (a) give the NV ADMA 
>> documentation to Robert, or (b) posting the ADMA PDF on 
>> http://gkernel.sourceforge.net/specs/ ?
>>
>> I strongly encourage vendors -- especially with chips at or past 
>> end-of-life -- to help customers and developers by permitting posting 
>> at http://gkernel.sourceforge.net/specs/
>>
>> Thanks,
>>
>>     Jeff
> 
> I would second that call. It's been suggested that 3rd party IP was what 
> inhibited this, I don't know if that is the case or not. But it would be 
> a very nice gesture if NVIDIA would do what it takes to make this possible.

/me thirds.

-- 
tejun