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.