linux-kernel - Re: [PATCH] ath10k: Add history for tracking certain events

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Date:   Sat, 27 Jun 2020 08:28:11 -0700
From:   Ben Greear <greearb@...delatech.com>
To:     Rakesh Pillai <pillair@...eaurora.org>, ath10k@...ts.infradead.org
Cc:     linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ath10k: Add history for tracking certain events



On 06/26/2020 11:22 PM, Rakesh Pillai wrote:
> For debugging many issues, a history of the
> below mentioned events can help get an idea
> of what exactly was going on just before any
> issue occurred in the system. These event
> history will be collected only when the host
> driver is run in debug mode (i.e. with the
> config ATH10K_DEBUG enabled).

This should be disabled by default unless user specifically pokes some debugfs
value to turn it on so that it does not impact performance.

Thanks,
Ben

>
> Add history for tracking the below events
> - register read
> - register write
> - IRQ trigger
> - IRQ Enable
> - IRQ Disable
> - NAPI poll
> - CE service
> - WMI cmd
> - WMI event
> - WMI tx completion
>
> This will help in debugging any crash or any
> improper behaviour.


-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com