“This driver adds explicit support for Intel PIIX and ICH chips
and also for the Efar Victory66 (slc90e66) chip. This allows
the kernel to change PIO, DMA and UDMA speeds and to configure
the chip to optimum performance. ”
好像和ATA PIIX module无关吧。
The driver (along with the ata_piix driver) can be used with Intel's
ICH5R chipset. You will need the Option ROM to do RAID configuration.
This driver differs slightly from the other ataraid sub-drivers in that
it operates on SCSI block devices rather than the ATA/IDE ones.
"iswraid" depends on "ata_piix" driver to detect and load the SATA disks
connected to ICH5R. Note that the driver is still considered
experimental, use at your own risk.