.\"     $FreeBSD$
.\"     $NetBSD: isp.4,v 1.5 1999/12/18 18:33:05 mjacob Exp $
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.\" Copyright (c) 1998, 1999, 2001
.\"     Matthew Jacob, for NASA/Ames Research Center
.\"
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.Dd February 14, 2000
.Dt ISP 4
.Os
.Sh NAME
.Nm isp
.Nd Qlogic based SCSI and FibreChannel SCSI Host Adapters
.Sh SYNOPSIS
.Cd "device isp"
.Pp
For one or more SCSI busses:
.Cd device scbus0
.Sh DESCRIPTION
This driver provides access to
.Tn SCSI
or
.Tn FibreChannel
devices.
.Pp
SCSI features include support for Ultra SCSI and wide mode transactions
for
.Tn SCSI ,
Ultra2 LVD (for the ISP1080 and ISP1280), and Ultra3 LVD (for the
ISP12160).
.Pp
Fibre Channel support uses FCP SCSI profile for
.Tn 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,
.Tn FibreChannel
requires tagging).
Fabric support is enabled by default (but may
be contingent upon the correct firmware being loaded).
.Sh FIRMWARE
Firmware is now available if the
.Xr ispfw 4
module is loaded during bootstrap (q.v.).
.Pp
It is very strongly recommended that you use the firmware available
from
.Xr ispfw 4
as it is the most likely to have been tested with this driver.
.Sh HARDWARE
Supported cards include:
.Pp
.Bl -tag -width xxxxxx -offset indent
.It ISP1000
SBus Fast Wide, Ultra Fast Wide cards, Single Ended or Differential
cards.
.It PTI SBS440
Performance Technology ISP1000 variants.
.It ISP1020
Qlogic 1020 Fast Wide and Differential Fast Wide PCI cards.
.It 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).
.It PTI SBS450
Performance Technology ISP1040 variants.
.It Qlogic 1240
Qlogic 1240 Dual Bus Ultra Wide and Differential Ultra Wide PCI
cards.
.It Qlogic 1080
Qlogic 1280 LVD Ultra2 Wide PCI cards.
.It Qlogic 1280
Qlogic 1280 Dual Bus LVD Ultra2 Wide PCI cards.
.It Qlogic 12160
Qlogic 12160 Dual Bus LVD Ultra3 Wide PCI cards.
.It Qlogic 2100
Qlogic 2100 and 2100A Copper and Optical Fibre Channel Arbitrated
Loop
.It Qlogic 2102
Qlogic Dual Loop 2100A Optical Fibre Channel Arbitrated Loop PCI
cards.
.It Qlogic 2200
Qlogic 2200 Copper and Optical Fibre Channel Arbitrated Loop PCI
cards.
.It Qlogic 2202
Qlogic 2200 Dual Bus Optical Fibre Channel Arbitrated Loop PCI
cards.
.It Qlogic 2204
Qlogic 2200 Dual Bus Optical Fibre Channel Arbitrated Loop PCI
cards.
.It Qlogic 2300
Qlogic 2300 Optical Fibre Channel PCI cards.
.It Qlogic 2312
Qlogic 2312 Optical Fibre Channel PCI cards.
.It PTI SBS470
Performance Technology ISP2100 variants.
.It Antares P-0033
Antares Microsystems ISP2100 variants.
.El
.Sh CONFIGURATION OPTIONS
.Pp
Target mode support may be enabled with the
.Pp
.Cd options ISP_TARGET_MODE
.Pp
option.
.Sh BOOT OPTIONS
The following options are switchable by setting values in the loader
configuration file (see the
.Xr loader 8
manual page).
They are:
.Pp
.Bl -tag -width "isp_no_fwload" -compact
.It isp_disable
A bit mask of units to skip configuration for.
.It isp_mem_map
A bit mask of units to use PCI Memory space instead of I/O space
access for.
.It isp_io_map
A bit mask of units to use PCI I/O space instead of Memory space
access for.
.It isp_no_nvram
A bit mask of units that you wish to ignore board NVRAM settings
for.
.It isp_nvram
A bit mask of units that you wish to specifically use board NVRAM
settings for.
.It isp_fcduplex
A bit mask of units that you wish to specifically to set into full
duplex mode.
.It isp_no_fcduplex
A bit mask of units that you wish to specifically to not set into
full duplex mode.
.It 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.
.It isp_debug
This is a driver debug level- meaningful from 0 through 7.
.It isp_tdebug
This is a driver target mode debug level- meaningful from 0 through
5.
.El
.Sh BUGS
The driver currently ignores some NVRAM settings.
.Pp
The driver currently doesn't do error recovery for timed out commands
very gracefully.
.Pp
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).
.Pp
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.
.Sh SEE ALSO
.Xr da 4 ,
.Xr intro 4 ,
.Xr ispfw 4 ,
.Xr sa 4 ,
.Xr scsi 4
.Sh AUTHORS
The
.Nm
driver was written by Matthew Jacob for NASA/Ames Research Center.