SATA hotplug status (sii3114) -- 2.6 kernel

I asked about the status of SATA hotplug about one year ago for the 2.4 kernel. I am now moving onto the 2.6 kernel and was wondering if anyone can give me an update. I see the list traffic in Oct and Dec of 2005 related to Lukasz Kosewski's work, but lost the trail after that. I understand it is actively being developed and that there may be something in the "upstream" branch of libata that kind of supports hotplug.

If so, how do I get the upstream branch of libata? I did the below and got something but not sure what:

cg-clone git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

I tried getting it from here, but this server required a password:

master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git

If the latest hotplug changes are not in the source repo, where are they (I'm guessing the mailing list)? I specifically would like to target the 2.6.9 kernel in RedHat EL4, but would be willing to work with something newer if necessary. For what it's worth, I did get hotplug working in the 2.4.25 kernel for the SII3114.

Thanks,
Andy