Re: [RFC V2 17/21] watchdog/dev: Add tracepoints

From: Guenter Roeck
Date: Thu Feb 17 2022 - 12:27:19 EST


On 2/17/22 08:27, Daniel Bristot de Oliveira wrote:
Hi Peter

On 2/16/22 17:01, Peter.Enderborg@xxxxxxxx wrote:
On 2/14/22 11:45, Daniel Bristot de Oliveira wrote:
Add a set of tracepoints, enabling the observability of the watchdog
device interactions with user-space.

The events are:
watchdog:watchdog_open
watchdog:watchdog_close
watchdog:watchdog_start
watchdog:watchdog_stop
watchdog:watchdog_set_timeout
watchdog:watchdog_ping
watchdog:watchdog_nowayout
watchdog:watchdog_set_keep_alive
watchdog:watchdog_keep_alive

Some watchdogs have a bark functionality, I think it should be event for that too.


I understand. The problems is that I do not see the bark abstraction in the
watchdog_dev layer.


I don't even know what "bark functionality" means. A new term for pretimeout ?
Something else ?

Guenter

In the case I am investigating (the safety_monitor/safety_app) the bark is
outside of the "OS" view, it is an hardware action - like. shutdown.

Am I missing something? Thoughts?

-- Daniel