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

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Date:   Thu, 13 Sep 2018 17:12:52 +0200
From:   Andrew Lunn <andrew@...n.ch>
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>,
        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

> >>>>        devlink health sensor set pci/0000:01:00.0 name TX_COMP_ERROR action reset off action dump on
> >>>>            Sets TX_COMP_ERROR sensor parameters for a specific device.

> >>This is what I had in mind:
> >>1. command interface error
> >>2. command interface timeout
> >>3. stuck TX queue (like tx_timeout)
> >>4. stuck TX completion queue (driver did not process packets in a reasonable
> >>time period)
> >>5. stuck RX queue
> >>6. RX completion error
> >>7. TX completion error
> >>8. HW / FW catastrophic error report
> >>9. completion queue overrun

> Such issues do exist in production environment, and need to be handled even
> if root cause is a bug which will be fixed in latest release. My feature
> should help developers / administrator to control and recover their live
> systems, by auto correction and logging support.
> Goal is:
> - Provide alert debug information
> - Self healing
> - If problem needs vendor support, provide a way to gather all needed
> debugging information.

So maybe you have the wrong name for this. Health is nice in terms of
Marketing, but we are actually talking about bug recovery.

devlink bug sensor set pci/0000:01:00.0 name command_interface_error action reset off action dump on
devlink bug sensor set pci/0000:01:00.0 name command_interface_timeout action reset off action dump on
devlink bug sensor set pci/0000:01:00.0 name transmit_completion_error action reset off action dump on
devlink bug sensor set pci/0000:01:00.0 name completion_queue_overrun action reset off action dump on

seems a lot more understandable than:

devlink health set pci/0000:01:00.0 name TX_COMP_ERROR action reset off action dump on

	Andrew