Adding only updated ATA code to 5.4-STABLE

[Derek Giromini]

Greetings--

I am trying to install 5.4-STABLE on a 1U with a ICH5-R SATA RAID-1
controller. I am following Samuel Clements' instructions from earlier
in the month, but I don't want to cvsup CURRENT because I have no idea
what I'm taking from the pre-6.x environment. I just want 5.4-STABLE
with the modified ATA code that should address any RAID-1 issues.

I checked out the updates to src/sys/dev/ata, but upon making target
buildkernel, the build broke because it could not find a new header
file called ata_if.h. I can't find this anywhere in the CVSweb nor can
I check it out due to this error:

warning: new-born src/include/ata_if.h (or src/sys/sys/ata_if.h) has disappeared

I've checked the Attics in the usual suspect directories to find no
trace of this file. What's going on? Is this header generated? I'm
really at a loss here. Any help is appreciated.

Cheers,
--Derek