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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 v2 01/13] devlink: Add reload action option to devlink reload command
Date: Wed, 19 Aug 2020 14:46:16 +0200	[thread overview]
Message-ID: <20200819124616.GA2314@nanopsycho.orion> (raw)
In-Reply-To: <cd0e3d7e-4746-d26d-dd0c-eb36c9c8a10f@nvidia.com>

Wed, Aug 19, 2020 at 02:18:22PM CEST, moshe@nvidia.com wrote:
>
>On 8/19/2020 3:10 AM, Jakub Kicinski wrote:
>> 
>> On Tue, 18 Aug 2020 12:10:36 +0300 Moshe Shemesh wrote:
>> > On 8/17/2020 7:36 PM, Jiri Pirko wrote:
>> > > Mon, Aug 17, 2020 at 11:37:40AM CEST, moshe@mellanox.com wrote:
>> > > > Add devlink reload action to allow the user to request a specific reload
>> > > > action. The action parameter is optional, if not specified then devlink
>> > > > driver re-init action is used (backward compatible).
>> > > > Note that when required to do firmware activation some drivers may need
>> > > > to reload the driver. On the other hand some drivers may need to reset
>> > > Sounds reasonable. I think it would be good to indicate that though. Not
>> > > sure how...
>> > Maybe counters on the actions done ? Actually such counters can be
>> > useful on debug, knowing what reloads we had since driver was up.
>> Wouldn't we need to know all types of reset of drivers may do?
>
>
>Right, we can't tell all reset types driver may have, but we can tell which
>reload actions were done.
>
>> I think documenting this clearly should be sufficient.
>> 
>> A reset counter for the _requested_ reset type (fully maintained by
>> core), however - that may be useful. The question "why did this NIC
>> reset itself / why did the link just flap" comes up repeatedly.
>
>
>I will add counters on which reload were done. reload_down()/up() can return
>which actions were actually done and devlink will show counters.

Why a counter? Just return what was done over netlink reply.

>

  reply	other threads:[~2020-08-19 12:47 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17  9:37 [PATCH net-next RFC v2 00/13] Add devlink reload action option Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 01/13] devlink: Add reload action option to devlink reload command Moshe Shemesh
2020-08-17 16:16   ` Jakub Kicinski
2020-08-18  9:06     ` Moshe Shemesh
2020-08-18 15:37       ` Jakub Kicinski
2020-08-17 16:36   ` Jiri Pirko
2020-08-18  9:10     ` Moshe Shemesh
2020-08-19  0:10       ` Jakub Kicinski
2020-08-19 12:18         ` Moshe Shemesh
2020-08-19 12:46           ` Jiri Pirko [this message]
2020-08-19 14:23             ` Moshe Shemesh
2020-08-19 15:18               ` Jiri Pirko
2020-08-19 16:25                 ` Jakub Kicinski
2020-08-19 18:55                   ` Jiri Pirko
2020-08-17  9:37 ` [PATCH net-next RFC v2 02/13] devlink: Add supported reload actions to dev get Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 03/13] net/mlx5: Add functions to set/query MFRL register Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 04/13] net/mlx5: Set cap for pci sync for fw update event Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 05/13] net/mlx5: Handle sync reset request event Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 06/13] net/mlx5: Handle sync reset now event Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 07/13] net/mlx5: Handle sync reset abort event Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 08/13] net/mlx5: Add support for devlink reload action fw activate Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 09/13] devlink: Add enable_remote_dev_reset generic parameter Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 10/13] net/mlx5: Add devlink param enable_remote_dev_reset support Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 11/13] net/mlx5: Add support for fw live patch event Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 12/13] net/mlx5: Add support for devlink reload action live patch Moshe Shemesh
2020-08-17  9:37 ` [PATCH net-next RFC v2 13/13] devlink: Add Documentation/networking/devlink/devlink-reload.rst Moshe Shemesh
2020-08-17 16:39   ` Jiri Pirko
2020-08-18  9:14     ` Moshe Shemesh
2020-08-18 11:07       ` Jiri Pirko
2020-08-18 20:04         ` Moshe Shemesh

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