IDE chipsets and hdd hotswap

[Jeremy Jackson]

Hi,

I have an application for IDE hdd hotswap, and I'm trying to determine 
the best chipset.  I think one thing to consider is the ability or 
Linux/LinuxBIOS to completely initialize the chipset from power on reset 
to use UltraDMA (133 if possible).  If it can do that, logically it can 
re-do it when a different drive is swapped in.

So I'm asking on the LinuxBIOS list since IDE chip initialization has 
surely been dealt with.  Can anyone give me the name of chipsets which 
they have gotten going with UltraDMA and LinuxBIOS?

The second issue is the ability to tri-state off the bus, but I can find 
that info elsewhere (ie kernel source)  The hdparm utility/kernel driver 
has the beginnings of this support.

I know that the Promise PCI card controllers have a bios which probably 
contains hidden magic, perhaps another off-board card can be found.

Regards,

Jeremy