Module Name:	src
Committed By:	bouyer
Date:		Wed Dec  2 10:52:25 UTC 1998

Modified Files:
	src/sys/dev/ata: atavar.h
	src/sys/dev/ic: wdc.c
	src/sys/dev/pci: pciide.c pciide_cmd_reg.h
Log Message:
- change drive_flags from u_int8_t to u_int16_t
- keep the modes supported by the drive in struct ata_drive_datas (will be
later used for downgrading the DMA/PIO mode on error)
- use config flags to force/disable PIO/DMA/UDMA modes
- For the CMD PCI0643/6 setup DMA mode to DMA Read multiple.