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isp(4)

NAME

     isp -- Qlogic based SCSI and FibreChannel SCSI Host Adapters

SYNOPSIS

     device isp

     For one or more SCSI busses:
     device scbus0

DESCRIPTION

     This driver provides access to SCSI or FibreChannel devices.

     SCSI features include support for Ultra SCSI and wide mode transactions
     for SCSI, Ultra2 LVD (for the ISP1080 and ISP1280), and Ultra3 LVD (for
     the ISP12160).

     Fibre Channel support uses FCP SCSI profile for FibreChannel.  and uti-
     lizes Class 3 and Class 2 connections (Qlogic 2100 is Class 3 only, minor
     patches to the Qlogic 2200 to force Class 2 mode).  Support is available
     for Public and Private loops, and for point-to-point connections (Qlogic
     2200 only).  The newer 2-Gigabit cards (2300, 2312) are also supported.
     Command tagging is supported for all (in fact, FibreChannel requires tag-
     ging).  Fabric support is enabled by default (but may be contingent upon
     the correct firmware being loaded).

FIRMWARE

     Firmware is now available if the ispfw(4) module is loaded during boot-
     strap (q.v.).

     It is very strongly recommended that you use the firmware available from
     ispfw(4) as it is the most likely to have been tested with this driver.

HARDWARE

     Cards supported by the isp driver include:

	   ISP1000
		   SBus Fast Wide, Ultra Fast Wide cards, Single Ended or Dif-
		   ferential cards.

	   PTI SBS440
		   Performance Technology ISP1000 variants.

	   ISP1020
		   Qlogic 1020 Fast Wide and Differential Fast Wide PCI cards.

	   ISP1040
		   Qlogic 1040 Ultra Wide and Differential Ultra Wide PCI
		   cards.  Also known as the DEC KZPBA-CA (single ended) and
		   KZPBA-CB (HVD differential).

	   PTI SBS450
		   Performance Technology ISP1040 variants.

	   Qlogic 1240
		   Qlogic 1240 Dual Bus Ultra Wide and Differential Ultra Wide
		   PCI cards.


	   Qlogic 1280
		   Qlogic 1280 Dual Bus LVD Ultra2 Wide PCI cards.

	   Qlogic 12160
		   Qlogic 12160 Dual Bus LVD Ultra3 Wide PCI cards.

	   Qlogic 2100
		   Qlogic 2100 and 2100A Copper and Optical Fibre Channel
		   Arbitrated Loop

	   Qlogic 2102
		   Qlogic Dual Loop 2100A Optical Fibre Channel Arbitrated
		   Loop PCI cards.

	   Qlogic 2200
		   Qlogic 2200 Copper and Optical Fibre Channel Arbitrated
		   Loop PCI cards.

	   Qlogic 2202
		   Qlogic 2200 Dual Bus Optical Fibre Channel Arbitrated Loop
		   PCI cards.

	   Qlogic 2204
		   Qlogic 2200 Dual Bus Optical Fibre Channel Arbitrated Loop
		   PCI cards.

	   Qlogic 2300
		   Qlogic 2300 Optical Fibre Channel PCI cards.

	   Qlogic 2312
		   Qlogic 2312 Optical Fibre Channel PCI cards.

	   PTI SBS470
		   Performance Technology ISP2100 variants.

	   Antares P-0033
		   Antares Microsystems ISP2100 variants.

CONFIGURATION OPTIONS

     Target mode support may be enabled with the

     options ISP_TARGET_MODE

     option.

BOOT OPTIONS

     The following options are switchable by setting values in the loader con-
     figuration file (see the loader(8) manual page).  They are:

     isp_disable    A bit mask of units to skip configuration for.
     isp_mem_map    A bit mask of units to use PCI Memory space instead of I/O
		    space access for.
     isp_io_map     A bit mask of units to use PCI I/O space instead of Memory
		    space access for.
     isp_no_nvram   A bit mask of units that you wish to ignore board NVRAM
		    settings for.
     isp_nvram	    A bit mask of units that you wish to specifically use
		    card.
     isp_debug	    This is a driver debug level- meaningful from 0 through 7.
     isp_tdebug     This is a driver target mode debug level- meaningful from
		    0 through 5.

BUGS

     The driver currently ignores some NVRAM settings.

     The driver currently doesn't do error recovery for timed out commands
     very gracefully.

     Target mode support isn't completely debugged yet.  It works reasonably
     well for Fibre Channel, somewhat well for Qlogic 1040 cards, but doesn't
     yet work for the other cards (due to last minute unannounced changes in
     firmware interfaces).

     Sometimes, when booting, the driver gets stuck waiting for the Fibre
     Channel f/w to tell it that the loop port database is ready, or waiting
     for a good loop to be seen (this does not yet support booting without
     being connected to a fibre channel device).  To unwedge the system,
     unplug and replug the fibre channel connection, or otherwise cause a LIP
     (Loop Initialization Primitive sequence)- this will kick the f/w into
     getting unstuck.

SEE ALSO

     da(4), intro(4), ispfw(4), sa(4), scsi(4)

AUTHORS

     The isp driver was written by Matthew Jacob for NASA/Ames Research Cen-
     ter.

FreeBSD 5.4		       February 14, 2000		   FreeBSD 5.4

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