NAME
artsata —
Intel i31244 Serial ATA disk
controller driver
SYNOPSIS
artsata* at pci? dev ? function ? flags 0x0000
options PCIIDE_I31244_DISABLEDMA
DESCRIPTION
The
artsata driver supports the Intel i31244 Serial ATA and
controllers, and provides the interface with the hardware for the
ata(4) driver.
The 0x0002 flag forces the
artsata driver to disable DMA on
chipsets for which DMA would normally be enabled. This can be used as a
debugging aid, or to work around problems where the SATA controller is wired
up to the system incorrectly.
SEE ALSO
ata(4),
atapi(4),
intro(4),
pci(4),
pciide(4),
wd(4),
wdc(4)
BUGS
Early samples of the Intel i31244 Serial ATA controller revision 0 had a bug
affecting DMA data transfers. Full production samples have been fixed, but
have the same revision number. The
PCIIDE_I31244_DISABLEDMA
option can be used to disable
DMA on the buggy revisions.