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| author | Tomas Winkler <tomas.winkler@intel.com> | 2016-01-08 00:49:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-06 22:11:06 -0800 |
| commit | 222818c3d84c1f3190767f5f09f2b9b9a0e0ca7f (patch) | |
| tree | 71812f9021fe350bbec52494a07306410a96e8a2 /Documentation/misc-devices | |
| parent | fdd9b8655933c3eb3154fe1ed351c17b654258bd (diff) | |
| download | lwn-222818c3d84c1f3190767f5f09f2b9b9a0e0ca7f.tar.gz lwn-222818c3d84c1f3190767f5f09f2b9b9a0e0ca7f.zip | |
watchdog: mei_wdt: implement MEI iAMT watchdog driver
Create a driver with the generic watchdog interface
for the MEI iAMT watchdog device.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/misc-devices')
| -rw-r--r-- | Documentation/misc-devices/mei/mei.txt | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/misc-devices/mei/mei.txt b/Documentation/misc-devices/mei/mei.txt index 91c1fa34f48b..2b80a0cd621f 100644 --- a/Documentation/misc-devices/mei/mei.txt +++ b/Documentation/misc-devices/mei/mei.txt @@ -231,15 +231,15 @@ IT knows when a platform crashes even when there is a hard failure on the host. The Intel AMT Watchdog is composed of two parts: 1) Firmware feature - receives the heartbeats and sends an event when the heartbeats stop. - 2) Intel MEI driver - connects to the watchdog feature, configures the - watchdog and sends the heartbeats. + 2) Intel MEI iAMT watchdog driver - connects to the watchdog feature, + configures the watchdog and sends the heartbeats. -The Intel MEI driver uses the kernel watchdog API to configure the Intel AMT -Watchdog and to send heartbeats to it. The default timeout of the +The Intel iAMT watchdog MEI driver uses the kernel watchdog API to configure +the Intel AMT Watchdog and to send heartbeats to it. The default timeout of the watchdog is 120 seconds. -If the Intel AMT Watchdog feature does not exist (i.e. the connection failed), -the Intel MEI driver will disable the sending of heartbeats. +If the Intel AMT is not enabled in the firmware then the watchdog client won't enumerate +on the me client bus and watchdog devices won't be exposed. Supported Chipsets |