diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2004-03-08 21:03:54 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2004-03-08 21:03:54 +0000 |
| commit | 981204096b9931d8c8b52a891208a49ee9a6402b (patch) | |
| tree | 17bbd40207efc69c3a42529c01e6afb887187667 /share/man | |
| parent | af00350813331113b7bdd9ab8b58d11bbd894fc8 (diff) | |
Document SCSIDEBUG_* options.
ok miod@.
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man4/options.4 | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/share/man/man4/options.4 b/share/man/man4/options.4 index 82f797978c6..8addda5ebd3 100644 --- a/share/man/man4/options.4 +++ b/share/man/man4/options.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: options.4,v 1.135 2004/02/07 20:08:53 miod Exp $ +.\" $OpenBSD: options.4,v 1.136 2004/03/08 21:03:53 krw Exp $ .\" $NetBSD: options.4,v 1.21 1997/06/25 03:13:00 thorpej Exp $ .\" .\" Copyright (c) 1998 Theo de Raadt @@ -924,7 +924,41 @@ which affects processor cycle counter. Terser SCSI error messages. This omits the table for decoding ASC/ASCQ info, saving about 8KB. .It Cd option SCSIDEBUG -Prints extra debugging info for the SCSI subsystem to the console. +Enable printing of SCSI subsystem debugging info to the console. +Each of +.Em SCSIDEBUG_LEVEL , +.Em SCSIDEBUG_BUSES , +.Em SCSIDEBUG_TARGETS +and +.Em SCSIDEBUG_LUNS +must have non-zero values for any debugging info to be printed. +Only +.Em SCSI_DEBUG_LEVEL +has a default value that is non-zero. +.It Cd option SCSIDEBUG_LEVEL=value +Define which of the four levels of debugging info are printed. +Each bit enables a level, and multiple levels are specified by setting multiple +bits. +.Bd -literal -offset indent +0x0010 (SDEV_DB1) SCSI commands, errors, and data +0x0020 (SDEV_DB2) routine flow +0x0040 (SDEV_DB3) routine internals +0x0080 (SDEV_DB4) miscellaneous addition debugging +.Ed +.Pp +If +.Em SCSIDEBUG_LEVEL +is undefined, a value of 0x0030 (SDEV_DB1|SDEV_DB2) is used. +.It Cd option SCSIDEBUG_BUSES=value +Define which SCSI buses will print debug info. +Each bit enables debugging info for the corresponding bus. +e.g. a value of 0x1 enables debug info for bus 0. +.It Cd option SCSIDEBUG_TARGETS=value +Define which SCSI targets will print debug info. +Each bit enables debugging info for the corresponding target. +.It Cd option SCSIDEBUG_LUNS=value +Define which SCSI luns will print debug info. +Each bit enables debugging info for the corresponding lun. .El .Ss System V IPC Options .Bl -ohang |