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OSIOP(4) Device Drivers Manual OSIOP(4)

NAME

osiopSymbios/NCR 53C710 SCSI driver

SYNOPSIS

osiop* at gsc? irq 9 (hppa)

DESCRIPTION

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.

SEE ALSO

cd(4), ch(4), intro(4), oosiop(4), scsi(4), sd(4), siop(4), st(4), uk(4)
http://www.lsilogic.com/

HISTORY

The osiop driver first appeared in NetBSD 1.6.
The original NCR 53C710 driver appeared in NetBSD 1.0 amiga port, and Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> modified the driver and made it machine-independent.
March 18, 2014 OpenBSD-current