diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/ABI/testing/sysfs-class-mic.txt | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/ABI/testing/sysfs-class-mic.txt')
| -rw-r--r-- | kernel/Documentation/ABI/testing/sysfs-class-mic.txt | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/kernel/Documentation/ABI/testing/sysfs-class-mic.txt b/kernel/Documentation/ABI/testing/sysfs-class-mic.txt index 13f48afc5..d45eed2bf 100644 --- a/kernel/Documentation/ABI/testing/sysfs-class-mic.txt +++ b/kernel/Documentation/ABI/testing/sysfs-class-mic.txt @@ -41,18 +41,15 @@ Description: When read, this entry provides the current state of an Intel MIC device in the context of the card OS. Possible values that will be read are: - "offline" - The MIC device is ready to boot the card OS. On + "ready" - The MIC device is ready to boot the card OS. On reading this entry after an OSPM resume, a "boot" has to be written to this entry if the card was previously shutdown during OSPM suspend. - "online" - The MIC device has initiated booting a card OS. + "booting" - The MIC device has initiated booting a card OS. + "online" - The MIC device has completed boot and is online "shutting_down" - The card OS is shutting down. + "resetting" - A reset has been initiated for the MIC device "reset_failed" - The MIC device has failed to reset. - "suspending" - The MIC device is currently being prepared for - suspend. On reading this entry, a "suspend" has to be written - to the state sysfs entry to ensure the card is shutdown during - OSPM suspend. - "suspended" - The MIC device has been suspended. When written, this sysfs entry triggers different state change operations depending upon the current state of the card OS. @@ -62,8 +59,6 @@ Description: sysfs entries. "reset" - Initiates device reset. "shutdown" - Initiates card OS shutdown. - "suspend" - Initiates card OS shutdown and also marks the card - as suspended. What: /sys/class/mic/mic(x)/shutdown_status Date: October 2013 @@ -126,7 +121,7 @@ Description: the card. This sysfs entry can be written with the following valid strings: a) linux - Boot a Linux image. - b) elf - Boot an elf image for flash updates. + b) flash - Boot an image for flash updates. What: /sys/class/mic/mic(x)/log_buf_addr Date: October 2013 @@ -155,3 +150,17 @@ Description: daemon to set the log buffer length address. The correct log buffer length address to be written can be found in the System.map file of the card OS. + +What: /sys/class/mic/mic(x)/heartbeat_enable +Date: March 2015 +KernelVersion: 3.20 +Contact: Ashutosh Dixit <ashutosh.dixit@intel.com> +Description: + The MIC drivers detect and inform user space about card crashes + via a heartbeat mechanism (see the description of + shutdown_status above). User space can turn off this + notification by setting heartbeat_enable to 0 and enable it by + setting this entry to 1. If this notification is disabled it is + the responsibility of user space to detect card crashes via + alternative means such as a network ping. This setting is + enabled by default. |