PCI-Express support

[Poul-Henning Kamp]

In message <410D52B1.2010807 at samsco.org>, Scott Long writes:

>>>Adding this for 5.3 is feasible, I think, and doesn't add a whole lot
>>>of risk.
>> 
>> 
>> OK, who are you and what have you done to Scott Long ?
>> 
>> Scott would never even think about suggesting something like this two
>> weeks before we lock down the tree for a -stable branching.
>
>To answer you and Warner, this is functionality that is optional and has
>little risk to the existing infrastructure.  John has done a great job
>with abstracting the low-level interrupt drivers, and this would just be
>another one of those.  The support would be marked as *experimental*,
>but with the API in place it would give us more freedom to make it
>happen.  Intel is pushing really hard to get adoption of this stuff in
>the small/medium size server area, and 5.x is going to suffer if it's
>not there.

I *really* want us to get 5-stable branched and moving.  If it is as
optional as you say now, it can be added downstream once it has been
baked out in -current.

Please, Let us concentrate on getting 5-stable branched and made
sensible.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.