From: Ben Greear <greearb@candelatech.com>
To: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Michal Kazior <michal.kazior@tieto.com>, ath10k@lists.infradead.org
Subject: Re: What to do about hung firmware?
Date: Wed, 06 Nov 2013 08:51:40 -0800 [thread overview]
Message-ID: <527A739C.4060807@candelatech.com> (raw)
In-Reply-To: <87ob5yt1kp.fsf@kamboji.qca.qualcomm.com>
On 11/05/2013 11:46 PM, Kalle Valo wrote:
> Michal Kazior <michal.kazior@tieto.com> writes:
>
>> You probably could try WMI_ECHO_CMDID to implement a keep alive when
>> idling (i.e. not sending WMI commands for a few seconds at least).
>
> Sending something periodically would be bad from power consumption point
> of view. We would need to either disable it by default, only send it if
> there's a problem or something like that.
Ok, how about this:
If we hit the 3*HZ timeout, then we send a ping to the firmware
even if we are out of tickets.
If we get no response to that in 3*HZ or so, then consider firmware
hung and reset it.
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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next prev parent reply other threads:[~2013-11-06 16:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-05 18:51 What to do about hung firmware? Ben Greear
2013-11-06 7:07 ` Michal Kazior
2013-11-06 7:21 ` Ben Greear
2013-11-06 7:46 ` Kalle Valo
2013-11-06 16:51 ` Ben Greear [this message]
2013-11-06 17:40 ` Kalle Valo
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