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IPMI: add polled interface

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Currently the IPMI watchdog timer sets the watchdog timeout on a panic, but it
doesn't actually poll the interface to make sure the message goes out.

Add an interface for polling the IPMI driver, and add code to the IPMI
watchdog timer to poll the interface when the timer is set from a panic.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Corey Minyard 2007-10-18 03:07:09 -07:00 • committed by Linus Torvalds
parent 650dd0c7fa
commit fcfa472411
4 changed files with 83 additions and 47 deletions
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10
include/linux/ipmi.h
View file

@ -364,6 +364,16 @@ int ipmi_request_supply_msgs(ipmi_user_t user,
struct ipmi_recv_msg *supplied_recv,
int priority);
/*
* Poll the IPMI interface for the user. This causes the IPMI code to
* do an immediate check for information from the driver and handle
* anything that is immediately pending. This will not block in any
* way. This is useful if you need to implement polling from the user
* for things like modifying the watchdog timeout when a panic occurs
* or disabling the watchdog timer on a reboot.
*/
void ipmi_poll_interface(ipmi_user_t user);
/*
* When commands come in to the SMS, the user can register to receive
* them. Only one user can be listening on a specific netfn/cmd/chan tuple