The siisata driver supports the Silicon Image SteelVine family of SATA-II
controllers, interfacing the hardware with the ata(4) and atapi(4) sub-
systems.
The following controllers are supported by the siisata driver:
Silicon Image SiI3124 4-port PCI/PCI-X
Silicon Image SiI3132 2-port PCI-Express x1
Silicon Image SiI3531 1-port PCI-Express x1
SATA Native Command Queueing is not yet supported.
Device hot swapping is not yet supported.
Silicon Image's Software RAID is not yet supported by the
ataraid(4) driver.
Approved by: core (christos), releng (bouyer)
Reconmap used to have one pointer for every reconstruction unit. This
does not scale well in the land of 1TB disks, where some 100MB+ of
"status pointers" are required for typical configurations. Convert
the reconstruction code to use a "sliding status window" which will
scale nicely regardless of the number of stripes/reconstruction units
in the RAID set. Convert the main reconstruction loop to rebuild the
array in chunks rather than in one big lump.
As part of these changes, introduce a function to kick any waiters on
the head separation callback list, and use that in the main
reconstruction event queue to wake up the waiters if things have
stalled. (I believe this may fix a race condition that could occur at
at least at the very end of a disk during reconstruction under heavy
IO load.)
Thanks to Brian Buhrow for all his help, support, and patience in
testing these changes.
Revert condvar changes; there seem to be other locking issues
(independent of these changes insofar as I can tell), and it will
only complicate things for now to introduce more changes.
Argh!
config_found_ia on the node to save a bunch of useless 'device NNN
not configured' messages at startup. While here, condense ACPI printfs
at attach time.
