SIOP(4) - Device Drivers Manual #
SIOP(4) - Device Drivers Manual
NAME #
siop - LSI/Symbios Logic/NCR 53c8xx SCSI interface
SYNOPSIS #
siop* at pci?
# hppa siop* at mainbus? irq 3 siop* at phantomas? irq 3 siop* at uturn? irq 3
DESCRIPTION #
The
siop
driver provides support for following LSI/Symbios Logic/NCR 53c8xx and
related
SCSI
controller chips:
- 53c720 and 53c770 (Fast-Wide
SCSI) - 53c810, 53c810a and 53c815 (Fast
SCSI) - 53c820, 53c825 and 53c825a (Fast-Wide
SCSI) - 53c860 (Ultra
SCSI) - 53c875 and 53c875j (Ultra-Wide
SCSI) - 53c876 (Dual Ultra-Wide
SCSI) - 53c885 (Ultra-Wide
SCSIandEthernet) - 53c895 and 53c895a (Ultra2-Wide
SCSI) - 53c896 (PCI 64bit, dual Ultra2-Wide
SCSI) - 53c1010 (PCI 64bit, dual Ultra3-Wide
SCSI. NOTE: at this time siop supports at most Ultra2-Wide with this chip) - 53c1510D (dual Ultra2-Wide
SCSI)
siop replaces the older ncr driver which supported most of these devices.
Older 53C700 and 53C710 controllers are supported by the [oosiop(4)](/man/man4/oosiop.4) and osiop(4) drivers, respectively.
SEE ALSO #
cd(4), ch(4), intro(4), [oosiop(4)](/man/man4/oosiop.4), osiop(4), pci(4), scsi(4), sd(4), st(4), uk(4)
HISTORY #
The siop driver first appeared in NetBSD 1.5, OpenBSD support was added in OpenBSD 2.9.
AUTHORS #
The siop driver was written by Manuel Bouyer <Manuel.Bouyer@lip6.fr> for NetBSD. It was ported to OpenBSD with 53c1010 support added by Ken Westerback <krw@openbsd.org> using code from the FreeBSD sym-2 driver written by Gerard Roudier <groudier@FreeBSD.org>.
OpenBSD 7.5 - February 17, 2022