Anyone with a Silicon Image controller interested in testing this patch 
on a non-production box?

It adds support for a new, Silicon Image-specific DMA table which should 
not only reduce CPU utilization a bit, but hopefully also magically 
solve the "mod15write bug" that affected Silicon Image chipsets _when in 
combination with_ certain SATA drives.

Feedback from people with and without the affected SATA drives 
("mod15write" bug) is welcome.

This patch should apply against the latest 2.6.4-bkN snapshot version of 
sata_sil.c, but for ease I have attached the full 2.6 version of the 
driver as well (compressed, it's just over 4K).

	Jeff