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authorTheo de Raadt <deraadt@cvs.openbsd.org>1996-10-04 02:02:04 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1996-10-04 02:02:04 +0000
commit37babd07594faf4e90a3c0180b540298e2796e2d (patch)
tree56354bb05d3763a235f1917dbc7e090229b61c1d /share/man/man4
parent3b6a1dc93e56b4cef6f7dd33ce0a275a84be4002 (diff)
sync
Diffstat (limited to 'share/man/man4')
-rw-r--r--share/man/man4/ahc.464
1 files changed, 32 insertions, 32 deletions
diff --git a/share/man/man4/ahc.4 b/share/man/man4/ahc.4
index 3731302bcf0..c5ed98293ec 100644
--- a/share/man/man4/ahc.4
+++ b/share/man/man4/ahc.4
@@ -1,4 +1,4 @@
-.\" $NetBSD: ahc.4,v 1.1 1996/07/10 22:58:35 explorer Exp $
+.\" $NetBSD: ahc.4,v 1.1.2.1 1996/08/25 17:22:14 thorpej Exp $
.\"
.\" Copyright (c) 1995, 1996
.\" Justin T. Gibbs. All rights reserved.
@@ -27,8 +27,10 @@
.\"
.\"
.Dd April 20, 1996
-.Dt AHC 4 i386
-.Os FreeBSD
+.\".Dt AHC 4 i386
+.\".Os FreeBSD
+.Dt AHC 4
+.Os
.Sh NAME
.Nm ahc
.Nd Adaptec VL/EISA/PCI SCSI host adapter driver
@@ -39,8 +41,7 @@ For one or more VL/EISA cards:
.Cd controller ahc0
\}
\{For VL cards:
-.Cd ahc* at eisa? slot ?
-.Cd options AHA284X_HACK
+.Cd ahc0 at isa? port ? irq ?
.Pp
For EISA cards:
.Cd ahc* at eisa? slot ?\}
@@ -132,6 +133,32 @@ in the
.Tn SCSI-Select
utility
will allow normal function.
+.if 1 \{
+.Pp
+There are four problems known this version of this driver as follows.
+All of these problems relate to MI SCSI system.
+.Pp
+Cannot handle SCSI ID greater than 7 with WIDE SCSI adapter.
+.Pp
+It is dangerous to simultaneously access SCSI devices more than half
+number of SCBs. It may cause fatal disk trouble. In this case,
+diagnostics message
+.Dq not queued, error ...
+is displayed to console.
+For example, AHA-274x and AHA-284x have only 4 SCBs, so that using 3 SCSI
+devices is dangerous, using 2 devices is OK.
+.Pp
+When you suddenly access SCSI devices on free physical memory shortage
+conditions, and if there have been very few load on SCSI devices until
+then, it may cause fatal disk trouble. In this case, diagnostics
+message
+.Dq ahc0: Can't malloc SCB
+and
+.Dq not queued, error ...
+is displayed to console.
+.Pp
+SCSI residual handling is not complete.
+\}
.Sh SEE ALSO
.Xr aha 4 ,
.Xr ahb 4
@@ -148,30 +175,3 @@ driver was written by Justin Gibbs. The
.Tn AIC7xxx
sequencer-code assembler was
written by John Aycock.
-.if 1 \{NetBSD porting is done by Stefan Grefen, Charles M. Hannum,
-Michael Graff, Pete Bentley and Noriyuki Soda.
-.Sh BUGS
-There are four problems known in NetBSD version of this driver.
-All of these problems relate to NetBSD MI SCSI system.
-.Pp
-Cannot handle SCSI ID greater than 7 with WIDE SCSI adapter.
-.Pp
-It is dangerous to use SCSI devices more than half of SCBs.
-For example, AHA-274x and AHA-284x have only 4 SCBs, so that using 3 SCSI
-devices is dangerous, using 2 devices is OK.
-.Pp
-There is possibility of causing "Can't malloc SCB" error.
-.Pp
-SCSI residual handling is not complete.
-\}
-.Sh HISTORY
-The
-.Nm
-driver appeared in
-.Tn FreeBSD
-2.1
-.if 1 \{and
-.Tn NetBSD
-1.1.
-\}
-