linux-kernel - Re: [PATCH net-next RFC v4 15/15] devlink: Add Documentation/networking/devlink/devlink-reload.rst

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Date:   Tue, 15 Sep 2020 22:59:42 +0300
From:   Moshe Shemesh <moshe@...dia.com>
To:     Jakub Kicinski <kuba@...nel.org>,
        Moshe Shemesh <moshe@...lanox.com>
CC:     "David S. Miller" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next RFC v4 15/15] devlink: Add
 Documentation/networking/devlink/devlink-reload.rst


On 9/15/2020 7:04 PM, Jakub Kicinski wrote:
> External email: Use caution opening links or attachments
>
>
> On Mon, 14 Sep 2020 09:08:02 +0300 Moshe Shemesh wrote:
>> +   * - ``no_reset``
>> +     - No reset allowed, no down time allowed, no link flap and no
>> +       configuration is lost.
> It still takes the PCI link down for up to 2sec. So there is down time,
> right?


No, the fw reset with PCI link down is categorized as fw_activate with 
limit level none.

fw_live_patch keeps the pci link up and it fits to "no_reset" limit level.