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ISP(4)			     Kernel Interfaces Manual			  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 utilizes
     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 tagging).  Fabric sup-
     port 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 bootstrap
     (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 1020
		   Qlogic 1020 SCSI cards.

	   Qlogic 1040
		   Qlogic 1040 Ultra SCSI cards.

	   Qlogic 1080
		   Qlogic 1280 LVD Ultra2 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 Arbi-
		   trated 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 set-
		    tings for.
     isp_nvram	    A  bit mask of units that you wish to specifically use board
		    NVRAM settings for.
     isp_fcduplex   A bit mask of units that you wish  to  specifically  to  set
		    into full duplex mode.
     isp_no_fcduplex
		    A bit mask of units that you wish to specifically to not set
		    into full duplex mode.
     isp_wwn	    This  should  be  the  full  64 bit World Wide Node Name you
		    would like to use, overriding the value  in  NVRAM	for  the
		    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  Chan-
     nel  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  con-
     nected  to  a fibre channel device).  To unwedge the system, unplug and re-
     plug the fibre channel connection, or otherwise cause a LIP (Loop	Initial-
     ization 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 Center.

FreeBSD 5.4			February 14, 2000			  ISP(4)
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