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Update the isp man page.

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MFC after:	2 weeks
This commit is contained in:
Matt Jacob 2007-02-28 23:21:51 +00:00
parent e0526e6088
commit 4c38f2f8bc
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68
share/man/man4/isp.4
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@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd February 6, 2006
.Dd February 28, 2007
.Dt ISP 4
.Os
.Sh NAME
@ -69,19 +69,23 @@ 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.
The newer 2-Gigabit cards (2300, 2312, 2322) and 4-Gigabit(2422, 2432)
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).
Fabric support is enabled by default for other than 2100 cards. Fabric
support for 2100 cards has been so problematic and these cards are so
old now that it's just not worth your time to try it.
.Sh FIRMWARE
Firmware is 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
It is
.Ar 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.
@ -125,9 +129,13 @@ Qlogic 2312 Optical Fibre Channel PCI cards.
.It Qlogic 234X
Qlogic 234X Optical Fibre Channel PCI cards (2312 chipset, single and dual attach).
.It Qlogic 2322
Qlogic 2322 Optical Fibre Channel PCI cards.
Qlogic 2322 Optical Fibre Channel PCIe cards.
.It Qlogic 200
Dell Branded version of the QLogic 2312 Fibre Channel PCI cards.
.It Qlogic 2422
Qlogic 2422 Optical Fibre Channel PCI cards (4 Gigabit)
.It Qlogic 2432
Qlogic 2432 Optical Fibre Channel PCIe cards (4 Gigabit)
.El
.Sh CONFIGURATION OPTIONS
.Pp
@ -179,12 +187,33 @@ to use, overriding the value in NVRAM for the card.
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 Va hint.isp.0.iid
A hint to override or set the Initiator ID (principally for SPI SCSI).
A hint to override or set the Initiator ID or Loop ID. For Fibre Channel
cards in Local Loop topologies it is
.Ar strongly
recommended that you set this value to non-zero.
.It Va hint.isp.0.role
A hint to define default role for isp instance (target, initiator, both).
.It Va hint.isp.0.debug
A hint value for a driver debug level (values from 0 through 7).
Default is 0.
A hint value for a driver debug level (see the file
.Pa /usr/src/sys/dev/isp/ispvar.h
for the values.
.El
.Sh SYSCTL OPTIONS
.Pp
.Bl -tag -width indent
.It Va dev.isp.N.loop_down_limit
This value says how long to wait in seconds after loop has gone down before
giving up and expiring all of the devices that were visible. The default is
300 seconds (5 minutes). A seperate (nonadjustable) timeout is used when
booting to not stop booting on lack of FC connectivity.
.It Va dev.isp.N.gone_device_time
This value says how long to wait for devices to reappear if they (temporarily)
disappear due to loop or fabric events. While this timeout is running, I/O
to those devices will simply be held.
.It Va dev.isp.N.wwnn
This is the readonly World Wide Node Name value for this port.
.It Va dev.isp.N.wwpn
This is the readonly World Wide Port Name value for this port.
.El
.Sh SEE ALSO
.Xr da 4 ,
@ -195,28 +224,13 @@ Default is 0.
.Sh AUTHORS
The
.Nm
driver was written by Matthew Jacob for NASA/Ames Research Center.
driver was written by Matthew Jacob originally for NetBSD at
NASA/Ames Research Center.
.Sh BUGS
The driver currently ignores some NVRAM settings.
.Pp
The driver currently does not do error recovery for timed out commands
very gracefully.
.Pp
Target mode support is not completely debugged yet.
Target mode support is not completely reliable yet.
It works reasonably
well for Fibre Channel, somewhat well for Qlogic 1040 cards, but
does not 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.
.Pp
QLogic 2322 support is limited to platforms where the BIOS can
enable firmware as there is no code yet to do the 3 stage loading
for 2322 firmware.