From: Jiri Pirko <jiri@resnulli.us>
To: Moshe Shemesh <moshe@nvidia.com>
Cc: Jakub Kicinski <kuba@kernel.org>,
Moshe Shemesh <moshe@mellanox.com>,
"David S. Miller" <davem@davemloft.net>,
Jiri Pirko <jiri@mellanox.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next RFC v3 01/14] devlink: Add reload action option to devlink reload command
Date: Thu, 10 Sep 2020 08:51:58 +0200 [thread overview]
Message-ID: <20200910065158.GS2997@nanopsycho.orion> (raw)
In-Reply-To: <b0550422-83a4-4e97-46e3-cb5f431a6dd7@nvidia.com>
Wed, Sep 09, 2020 at 03:27:19PM CEST, moshe@nvidia.com wrote:
>
>On 9/7/2020 8:58 PM, Jakub Kicinski wrote:
>> On Mon, 7 Sep 2020 16:46:01 +0300 Moshe Shemesh wrote:
>> > > In that sense I don't like --live because it doesn't really say much.
>> > > AFAIU it means 1) no link flap; 2) < 2 sec datapath downtime; 3) no
>> > > configuration is lost in kernel or device (including netdev config,
>> > > link config, flow rules, counters etc.). I was hoping at least the
>> > > documentation in patch 14 would be more precise.
>> > Actually, while writing "no-reset" or "live-patching" I meant also no
>> > downtime at all and nothing resets (config, rules ... anything), that
>> > fits mlx5 live-patching.
>> >
>> > However, to make it more generic, I can allow few seconds downtime and
>> > add similar constrains as you mentioned here to "no-reset". I will add
>> > that to the documentation patch.
>> Oh! If your device supports no downtime and packet loss at all that's
>> great. You don't have to weaken the definition now, whoever needs a
>> weaker definition can add a different constraint level later, no?
>
>
>Yes, but if we are thinking there will be more levels, maybe the flag
>"--live" or "--no_reset" is less extendable, we may need new attr. I mean
>should I have uAPI command line like:
>
>$ devlink dev reload DEV [ netns { PID | NAME | ID } ] [ action {
>driver_reinit | fw_activate } [ limit_level no_reset ] ]
Sounds fine.
>
>
next prev parent reply other threads:[~2020-09-10 6:52 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-30 15:27 [PATCH net-next RFC v3 00/14] Add devlink reload action option Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 01/14] devlink: Add reload action option to devlink reload command Moshe Shemesh
2020-08-31 12:15 ` Jiri Pirko
2020-09-01 19:43 ` Moshe Shemesh
2020-09-02 9:46 ` Jiri Pirko
2020-09-02 15:30 ` Jakub Kicinski
2020-09-03 5:57 ` Jiri Pirko
2020-09-03 19:47 ` Jakub Kicinski
2020-09-04 9:04 ` Jiri Pirko
2020-09-04 19:56 ` Jakub Kicinski
2020-09-07 13:46 ` Moshe Shemesh
2020-09-07 17:58 ` Jakub Kicinski
2020-09-09 13:27 ` Moshe Shemesh
2020-09-09 19:24 ` Jakub Kicinski
2020-09-10 5:16 ` Vasundhara Volam
2020-09-10 6:51 ` Jiri Pirko [this message]
2020-08-30 15:27 ` [PATCH net-next RFC v3 02/14] devlink: Add reload actions counters Moshe Shemesh
2020-08-31 10:48 ` Jiri Pirko
2020-09-01 19:05 ` Moshe Shemesh
2020-09-02 0:01 ` Jakub Kicinski
2020-09-04 5:03 ` Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 03/14] devlink: Add reload actions counters to dev get Moshe Shemesh
2020-08-31 10:44 ` Jiri Pirko
2020-09-01 19:00 ` Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 04/14] net/mlx5: Add functions to set/query MFRL register Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 05/14] net/mlx5: Set cap for pci sync for fw update event Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 06/14] net/mlx5: Handle sync reset request event Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 07/14] net/mlx5: Handle sync reset now event Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 08/14] net/mlx5: Handle sync reset abort event Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 09/14] net/mlx5: Add support for devlink reload action fw activate Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 10/14] devlink: Add enable_remote_dev_reset generic parameter Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 11/14] net/mlx5: Add devlink param enable_remote_dev_reset support Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 12/14] net/mlx5: Add support for fw live patch event Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 13/14] net/mlx5: Add support for devlink reload action fw activate no reset Moshe Shemesh
2020-08-30 15:27 ` [PATCH net-next RFC v3 14/14] devlink: Add Documentation/networking/devlink/devlink-reload.rst Moshe Shemesh
2020-08-31 10:49 ` [PATCH net-next RFC v3 00/14] Add devlink reload action option Jiri Pirko
2020-09-01 20:05 ` Moshe Shemesh
[not found] ` <36e30108-26e3-44ae-e133-48d412f7efe6@nvidia.com>
2020-09-02 7:55 ` Jiri Pirko
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