osiop4
Symbios/ncr 53c710 scsi driver
Usage
osiop* at gsc? irq 9 (hppa)
Overview
The osiop driver provides support for the Symbios/NCR 53C710 SCSI controller chip.
The Symbios/NCR 53C700 SCSI controller is handled by the oosiop(4) driver, while the Symbios/NCR 53C8xx PCI SCSI host adapters are handled by the siop(4) driver.
Configuration
The osiop driver supports the following flags for use in config(8) files:
- bits 0-7:
-
disable disconnect/reselect for the corresponding SCSI target
- bits 8-15:
-
disable synchronous negotiation for SCSI target
- bits 16:
-
disable DMA interrupts
"Target" is synonymous with SCSI ID number.
Note that SCSI tape drives should be allowed to perform disconnect/reselect or performance will suffer.
Releases
49 releases since OpenBSD 3.3; the text changed 10 times.