OSIOP(4) FreeBSD Kernel Interfaces Manual OSIOP(4)
NAME
osiop - Symbios/NCR 53C710 SCSI driver
SYNOPSIS
arc
osiop* at jazzio? flags 0x00000
ews4800mips
osiop* at sbdio? flags 0x00000
hppa
osiop0 at gsc? flags 0x00000
mvme68k
osiop0 at pcctwo? ipl 2
scsibus* at osiop?
DESCRIPTION
The osiop driver provides support for the Symbios/NCR 53C710 SCSI
controller chip.
For the Symbios/NCR 53C700 SCSI host adapters, use the oosiop(4) driver.
For the Symbios/NCR 53C8xx PCI SCSI host adapters, use the siop(4) or
esiop(4) driver.
CONFIGURATION
The osiop driver supports the following flags for use in config(1) 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.
SEE ALSO
cd(4), ch(4), esiop(4), intro(4), oosiop(4), scsi(4), sd(4), siop(4),
ss(4), st(4), uk(4), scsipi(9)
HISTORY
osiop driver first appeared in NetBSD 1.6.
The original NCR 53C710 driver appeared in NetBSD 1.0 amiga port, and
Izumi Tsutsui <
[email protected]> modified the driver and made it
machine-independent.
FreeBSD 14.1-RELEASE-p8 May 12, 2001 FreeBSD 14.1-RELEASE-p8