netdev - Re: [PATCH v2 net-next 2/2] ionic: add devlink firmware update

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Message-ID: <20200905130422.36e230df@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Sat, 5 Sep 2020 13:04:22 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Shannon Nelson <snelson@...sando.io>
Cc:     netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: [PATCH v2 net-next 2/2] ionic: add devlink firmware update

On Thu,  3 Sep 2020 17:05:34 -0700 Shannon Nelson wrote:
> +/* The worst case wait for the install activity is about 25 minutes when
> + * installing a new CPLD, which is very seldom.  Normal is about 30-35
> + * seconds.  Since the driver can't tell if a CPLD update will happen we
> + * set the timeout for the ugly case.

25 minutes is really quite scary. And user will see no notification
other than "Installing 50%" for 25 minutes? And will most likely not 
be able to do anything that'd involve talking to the FW, like setting
port info/speed?

Is it possible for the FW to inform that it's updating the CPLD?

Can you release the dev_cmd_lock periodically to allow other commands
to be executed while waiting?