The pcscsi module provides low-level interface functions between the common disk/tape I/O subsystem and the Am53C974 (PCscsi), Am53C974A (PCscsi II), Am79C974 (PCnet-SCSI) (SCSI device only), and the Qlogic QLA510 SCSI controllers.

The pcscsi module can be configured for disk and streaming tape support for one host bus adapter device. Each host bus adapter device must be the sole initiator on a SCSI bus. Auto-configuration code determines if the adapter is present on the PCI bus, what its configuration is, and what types of devices are attached to it.

For PCI devices, configuration is done through the PCI BIOS. Configuration settings can be accessed through a CMOS utility.

The net component of the PCnet-SCSI host bus adapter requires the Solaris pcn(7D) driver. See AMD PCnet Ethernet (PCnet-PCI, PCnet-PCI II, PCnet-Fast for information on Ethernet configuration capabilities.

Known Problems and Limitations

The driver attempts to initialize itself in accordance with the PCI BIOS configuration settings..

There are no user-configurable options; information found in the pcscsi.conf configuration file is used by the I/O subsystem only.

/kernel/drv/pcscsi.conf

Configuration file

See attributes(5) for descriptions of the following attributes:

driver.conf(4), sysbus(4), attributes(5)