Re: when will pci hotplug in Freebsd

On 4/26/05, Scott Long <scottl_at_samsco.org> wrote:
> kylin wrote:
> > hello,every one ,
> > just now i have read the FreeBSD status report of march and april
> > ,also ,i have read the "plan for next 12 months"by o'Dell
> > it is a pity that i do not see any thing about the pci hotplug which i
> > am very interested in ,
> > so ,I wonder if the freebsd 5.4 or later version will support PCI
> > hotplug, if there is long time enought before the official providing
> > utility,i may develop it on my own, or i will just wait asn see :)
> > welcom to  give me some advice!
> > thank u:)
> >
> >
> >
> 
> Which PCI Hotplug do you want?  Do you want the one ACPI version that
> in only supported on a few ia64 systems?  Do you want the PCI-SIG
> version that's supported by no one?  Or do you want the Compaq version
> that isn't documented except in Linux driver sources?  What about the
> Dell version?  Or IBM?  Also, do you want storage and network devices
> to behave correctly when they are hot-pulled?  The work here is far
> from trivial, but I'd happily accept volunteers that want to start on
> it =-)
> 
> Scott
> 


-- 
we who r about to die,salute u!


thank you for your opinions, that encourage me very much !since so
broad a topic is , i would rather Devide and Quanqer:)
that is: 
1    i will start with the native hotplug of pci express ,which has a
very standard hardware interface and usage model. And among so many IO
devices ,
i would rather start first with the PCI Express SLOT hotplug,putting
something like scsi a little later.
2    there are few mainboard that support pci express hotplug nowadays
,but i found one which maybe useful:
that is the intel E7520AF2 server board using the E7520 chipset.now
the Dell PowerEdge 2800 is said to support pci express hotplug ,but
till now i doubt the bios of the 2800 do not support ACPI _OSC or OSHP
method yet.
i am contacting with dell now
3    according to linux and openbsd ,hotplug archtecture is rather
clear ,  a thread waiting for the interrupt from the slot  ,do the
init and driver-attaching then leaves it to userspace

4    i am so small and fragile ,so any gentlemen would like help are
warmly welcome!!




-- 
we who r about to die,salute u!