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authorCorey Minyard <minyard@acm.org>2006-12-06 23:41:00 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 11:39:47 -0500
commitb2c03941b50944a268ee4d5823872f220809a3ba (patch)
tree9ade96c649031f1eaf20587a2fdf855fe0118f4c /Documentation
parent759643b874907e76ae81e34df62f41ab6683f5c2 (diff)
[PATCH] IPMI: Allow hot system interface remove
This modifies the IPMI driver so that a lower-level interface can be dynamically removed while in use so it can support hot-removal of hardware. It also adds the ability to specify and dynamically change the IPMI interface the watchdog timer and the poweroff code use. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/IPMI.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 0e3924ecd76b..9101cbf2d883 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -502,7 +502,10 @@ used to control it:
502 502
503 modprobe ipmi_watchdog timeout=<t> pretimeout=<t> action=<action type> 503 modprobe ipmi_watchdog timeout=<t> pretimeout=<t> action=<action type>
504 preaction=<preaction type> preop=<preop type> start_now=x 504 preaction=<preaction type> preop=<preop type> start_now=x
505 nowayout=x 505 nowayout=x ifnum_to_use=n
506
507ifnum_to_use specifies which interface the watchdog timer should use.
508The default is -1, which means to pick the first one registered.
506 509
507The timeout is the number of seconds to the action, and the pretimeout 510The timeout is the number of seconds to the action, and the pretimeout
508is the amount of seconds before the reset that the pre-timeout panic will 511is the amount of seconds before the reset that the pre-timeout panic will
@@ -624,5 +627,9 @@ command line. The parameter is also available via the proc filesystem
624in /proc/sys/dev/ipmi/poweroff_powercycle. Note that if the system 627in /proc/sys/dev/ipmi/poweroff_powercycle. Note that if the system
625does not support power cycling, it will always do the power off. 628does not support power cycling, it will always do the power off.
626 629
630The "ifnum_to_use" parameter specifies which interface the poweroff
631code should use. The default is -1, which means to pick the first one
632registered.
633
627Note that if you have ACPI enabled, the system will prefer using ACPI to 634Note that if you have ACPI enabled, the system will prefer using ACPI to
628power off. 635power off.