ATA APM and NCQ support in FreeBSD atacontrol

Jeremy Chadwick koitsu at freebsd.org
Mon May 12 14:15:52 UTC 2008


On Mon, May 12, 2008 at 07:54:58AM -0600, Scott Long wrote:
> Mark Kirkwood wrote:
>> Jeremy Chadwick wrote:
>>>
>>> I am too, but PRs that are 2 years old which include patches for severe
>>> bugs that affect reliability of RAID is (in my opinion) not acceptable.
>>> I've been spanked over saying this before ("you don't understand how
>>> open source works"), but necessity easily supercedes idealism.
>>>
>>> Linux's libata has evolved very quickly and very well, and has multiple
>>> eyes familiar with the code (in the case the author takes vacation,
>>> etc.).  It has the upper hand here.
>>>
>>>   
>> Linux has more eyes period, which helps a lot. In addition Linux has more 
>> commercial sponsorship - having said that, I've no idea if libdata 
>> development has had any such  sponsorship...
>>
>> However. I do agree that we (that is FreeBSD) need more folks brave enough 
>> to help Soren out with the (S)ATA layer - that means people like you or me 
>> deciding to get our hands dirty with this code...
>>
>
> I'm working on adding ATA/SATA support to CAM.

!  Wow... I had no idea you were working on such!  Ideally that'd be the
best implementation.  Thanks a ton for working on it!

If you need someone to test patches (I figure they'll be for -CURRENT,
but our test boxes run RELENG_7), let me know and I'll be more than
happy to give them a shot.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |



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