OSIOP(4) BSD Kernel Interfaces Manual OSIOP(4)
osiop -- Symbios/NCR 53C710 SCSI driver
osiop* at gsc? irq 9 (hppa)
The osiop driver provides support for the Symbios/NCR 53C710 SCSI con-
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.
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/rese-
lect or performance will suffer.
cd(4), ch(4), intro(4), oosiop(4), scsi(4), sd(4), siop(4), st(4), uk(4)
The osiop driver first appeared in NetBSD 1.6.
The original NCR 53C710 driver appeared in NetBSD 1.0 amiga port, and
Izumi Tsutsui <email@example.com> modified the driver and made it
BSD May 27, 2017 BSD