Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Moshe Shemesh <moshe@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Jiri Pirko <jiri@mellanox.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Moshe Shemesh <moshe@mellanox.com>
Subject: [PATCH net-next RFC v2 00/13] Add devlink reload action option
Date: Mon, 17 Aug 2020 12:37:39 +0300	[thread overview]
Message-ID: <1597657072-3130-1-git-send-email-moshe@mellanox.com> (raw)

Introduce new option on devlink reload API to enable the user to select the
reload action required. Complete support for all actions in mlx5.
The following reload actions are supported:
  fw_live_patch: firmware live patching.
  driver_reinit: driver entities re-initialization, applying devlink-params
                 and devlink-resources values.
  fw_activate: firmware activate.

Each driver which support this command should expose the reload actions
supported.
The uAPI is backward compatible, if the reload action option is omitted
from the reload command, the driver reinit action will be used.
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
the firmware to reinitialize the driver entities.

Patch 1 adds the new API reload action option to devlink.
Patch 2 exposes the supported reload actions on devlink dev get.
Patches 3-8 add support on mlx5 for devlink reload action fw_activate
            and handle the firmware reset events.
Patches 9-10 add devlink enable remote dev reset parameter and use it
             in mlx5.
Patches 11-12 mlx5 add devlink reload live patch support and event
              handling.
Patch 13 adds documentation file devlink-reload.rst 

Command examples:

# Run reload command with fw activate reload action:
$ devlink dev reload pci/0000:82:00.0 action fw_activate

# Run reload command with driver reload action:
$ devlink dev reload pci/0000:82:00.0 action driver_reinit

# Run reload command with fw live patch reload action:
$ devlink dev reload pci/0000:82:00.0 action fw_live_patch

v1 -> v2:
- Instead of reload levels driver,fw_reset,fw_live_patch have reload
  actions driver_reinit,fw_activate,fw_live_patch
- Remove driver default level, the action driver_reinit is the default
  action for all drivers 


Moshe Shemesh (13):
  devlink: Add reload action option to devlink reload command
  devlink: Add supported reload actions to dev get
  net/mlx5: Add functions to set/query MFRL register
  net/mlx5: Set cap for pci sync for fw update event
  net/mlx5: Handle sync reset request event
  net/mlx5: Handle sync reset now event
  net/mlx5: Handle sync reset abort event
  net/mlx5: Add support for devlink reload action fw activate
  devlink: Add enable_remote_dev_reset generic parameter
  net/mlx5: Add devlink param enable_remote_dev_reset support
  net/mlx5: Add support for fw live patch event
  net/mlx5: Add support for devlink reload action live patch
  devlink: Add Documentation/networking/devlink/devlink-reload.rst

 .../networking/devlink/devlink-params.rst     |   6 +
 .../networking/devlink/devlink-reload.rst     |  54 +++
 Documentation/networking/devlink/index.rst    |   1 +
 drivers/net/ethernet/mellanox/mlx4/main.c     |   4 +-
 .../net/ethernet/mellanox/mlx5/core/Makefile  |   2 +-
 .../net/ethernet/mellanox/mlx5/core/devlink.c | 104 +++-
 .../mellanox/mlx5/core/diag/fw_tracer.c       |  31 ++
 .../mellanox/mlx5/core/diag/fw_tracer.h       |   1 +
 .../ethernet/mellanox/mlx5/core/fw_reset.c    | 448 ++++++++++++++++++
 .../ethernet/mellanox/mlx5/core/fw_reset.h    |  19 +
 .../net/ethernet/mellanox/mlx5/core/health.c  |  35 +-
 .../net/ethernet/mellanox/mlx5/core/main.c    |  13 +
 .../ethernet/mellanox/mlx5/core/mlx5_core.h   |   2 +
 drivers/net/ethernet/mellanox/mlxsw/core.c    |   6 +-
 drivers/net/netdevsim/dev.c                   |   5 +-
 include/linux/mlx5/device.h                   |   1 +
 include/linux/mlx5/driver.h                   |   4 +
 include/net/devlink.h                         |   9 +-
 include/uapi/linux/devlink.h                  |  20 +
 net/core/devlink.c                            |  84 +++-
 20 files changed, 812 insertions(+), 37 deletions(-)
 create mode 100644 Documentation/networking/devlink/devlink-reload.rst
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h

-- 
2.17.1


             reply	other threads:[~2020-08-17  9:38 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17  9:37 Moshe Shemesh [this message]
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
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1597657072-3130-1-git-send-email-moshe@mellanox.com \
    --to=moshe@mellanox.com \
    --cc=davem@davemloft.net \
    --cc=jiri@mellanox.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --subject='Re: [PATCH net-next RFC v2 00/13] Add devlink reload action option' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).