From 222818c3d84c1f3190767f5f09f2b9b9a0e0ca7f Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Fri, 8 Jan 2016 00:49:22 +0200 Subject: 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 Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- Documentation/misc-devices/mei/mei.txt | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'Documentation/misc-devices') diff --git a/Documentation/misc-devices/mei/mei.txt b/Documentation/misc-devices/mei/mei.txt index 91c1fa34f48b4..2b80a0cd621f0 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 -- cgit v1.2.3