SIOP(4)

SIOP(4) | Kernel Interfaces Manual | SIOP(4)

# NAME

siop — Symbios Logic/NCR 53c8xx SCSI driver

# SYNOPSIS

## hppa

siop* at mainbus? irq 3
siop* at phatomas? irq 3

## PCI

siop* at pci? dev ? function ?

options SIOP_SYMLED
scsibus* at siop?

# DESCRIPTION

The siop driver provides support for the Symbios Logic/NCR 53x8xx series of SCSI controller chips:

- 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 SCSI and Ethernet)
- 53c895 (Ultra2-Wide SCSI)
- 53c896 (PCI 64bit, dual Ultra2-Wide SCSI)
- 53c1010-33 (PCI 64bit, dual Ultra160 SCSI)
- 53c1510d (PCI 64bit, dual Ultra2-wide SCSI)

The SIOP_SYMLED option causes the driver to report SCSI activity on the GPIO pin 1, which is connected to the activity LED on some adapters. At this time only the 53c895 based Symbios and Tekram adapters are known to require this.

If both siop and the esiop(4) drivers are compiled, esiop(4) will take precedence for controllers it supports.

# SEE ALSO

cd(4), ch(4), esiop(4), intro(4), pci(4), scsi(4), sd(4), st(4), uk(4)

# HISTORY

The siop driver first appeared in NetBSD 1.5.

# AUTHORS

The siop driver was written by Manuel Bouyer <Manuel.Bouyer@lip6.fr> for NetBSD.

# BUGS

siop supports the 53c1010-33 in Ultra2-wide mode only. Use esiop(4) for Ultra160 support.

April 5, 2008 | NetBSD 7.0