WD33c93 SCSI controller
wdsc* at hpc?
driver provides support for the
Western Digital WD33c93 and WD33c93B SCSI controllers.
In addition to sending the required SCSI commands to target devices on the SCSI
driver deals with DMA, device
interrupts, sync/async negotiation, and target disconnects/reconnects.
- Bits 0-7
- Disable disconnect/reselect for the corresponding target
- Bits 8-15
- Disable synchronous negotiation for target "[bit - 8]"
- Bits 16-23
- Disable tagged queuing for target "[bit - 16]"
device flags may be OR'd together to
enable any combination of the features listed above. Tape devices should be
allowed to disconnect for the SCSI bus to operate acceptably.