netdev - Re: [RFC PATCH iproute2-next] man: Add devlink health man page

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Message-ID: <20180913102732.GG11198@eros>
Date:   Thu, 13 Sep 2018 20:27:32 +1000
From:   "Tobin C. Harding" <me@...in.cc>
To:     Eran Ben Elisha <eranbe@...lanox.com>
Cc:     netdev@...r.kernel.org, Jiri Pirko <jiri@...lanox.com>,
        Andy Gospodarek <andrew.gospodarek@...adcom.com>,
        Michael Chan <michael.chan@...adcom.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Tal Alon <talal@...lanox.com>,
        Ariel Almog <ariela@...lanox.com>
Subject: Re: [RFC PATCH iproute2-next] man: Add devlink health man page

On Thu, Sep 13, 2018 at 11:18:16AM +0300, Eran Ben Elisha wrote:
> Add devlink-health man page. Devlink-health tool will control device
> health attributes, sensors, actions and logging.
> 
> Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
> 
> -------------------------------------------------------
> Copy paste man output to here for easier review process of the RFC.
> 
> DEVLINK-HEALTH(8)                                                                                               Linux                                                                                              DEVLINK-HEALTH(8)
> 
> NAME
>        devlink-health - devlink health configuration
> 
> SYNOPSIS
>        devlink [ OPTIONS ] health  { COMMAND | help }
> 
>        OPTIONS := { -V[ersion] | -n[no-nice-names] }
> 
>        devlink health show [ DEV ] [ sensor NAME ]
> 
>        devlink health sensor set DEV name NAME [ action NAME { active | inactive } ]"
> 
>        devlink health action set DEV name NAME period PERIOD count COUNT fail { ignore | down }
> 
>        devlink health action reinit DEV name NAME
> 
>        devlink health help
> 
> DESCRIPTION
>        devlink-health tool allows user to configure the way driver treats unexpected status. The tool allows configuration of the sensors that can trigger health activity. Set for each sensor the follow up operations, such as,
>        reset and dump of info. In addition, set the health activity termination action.
> 
>    devlink health show - Display devlink health sensors and actions attributes
>        DEV - Specifies the devlink device to show.  If this argument is omitted, all devices are listed.
> 
>            Format is:
>              BUS_NAME/BUS_ADDRESS
> 
>        sensor NAME - Specifies the devlink sensor to show.
> 

Perhaps the commands should include the optional arguments so when
reading the description one doesn't have to scroll to the top of the
page all the time

e.g
     devlink health show [ DEV ] [ sensor NAME ] - Display devlink health sensors and actions attributes

>    devlink health sensor set - sets devlink health sensor attributes
>        DEV    Specifies the devlink device to show.

	 		      	      	     	set

>        name NAME
>               Name of the sensor to set.
> 
>        action NAME { active | inactive }
>                   Specify which actions to activate and which to deactivate once a sensor was triggered. actions can be dump, reset, etc.
> 
>    devlink health action set - sets devlink action attributes
>        DEV    Specifies the devlink device to set.
> 
>        name NAME
>               Specifies the devlink action to set.

This is a little unclear to me?

>        period PERIOD
>               The period on which we limit the amount of performed actions, measured in seconds.
> 
>        count COUNT
>               The maximum amount of actions performed in a limit time frame.

Perhaps		    	    	      	      
                The maximum number of actions performed in a limited time frame.

>        fail   { ignore | down }
>                   Specify the behavior once count limit was reached.
> 
>                   ignore - Ignore errors without execution of any action.
> 
>                   down - Driver will remain in nonoperational state.
> 
>    devlink health action reinit - reset devlink action attributes (period, count, fail, etc)
>        DEV    Specifies the devlink device to set.
> 
>        name NAME
>               Specifies the devlink action to set.

Perhaps s/set/reinitialise/g for the above two descriptions.

Hope this helps,
Tobin.