netdev - [PATCH net-next v3 0/3] net/mlx5: Expose additional devlink dev info

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Message-ID: <20250416214133.10582-1-jiri@resnulli.us>
Date: Wed, 16 Apr 2025 23:41:30 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	saeedm@...dia.com,
	leon@...nel.org,
	tariqt@...dia.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	donald.hunter@...il.com,
	parav@...dia.com,
	kalesh-anakkur.purayil@...adcom.com
Subject: [PATCH net-next v3 0/3] net/mlx5: Expose additional devlink dev info

From: Jiri Pirko <jiri@...dia.com>

This patchset aims to expose couple of already defined serial numbers
for mlx5 driver.

On top of that, it introduces new field, "function.uid" and exposes
that for mlx5 driver.

Example:

$ devlink dev info
pci/0000:08:00.0:
  driver mlx5_core
  serial_number e4397f872caeed218000846daa7d2f49
  board.serial_number MT2314XZ00YA
  function.uid MT2314XZ00YAMLNXS0D0F0
  versions:
      fixed:
        fw.psid MT_0000000894
      running:
        fw.version 28.41.1000
        fw 28.41.1000
      stored:
        fw.version 28.41.1000
        fw 28.41.1000
auxiliary/mlx5_core.eth.0:
  driver mlx5_core.eth
pci/0000:08:00.1:
  driver mlx5_core
  serial_number e4397f872caeed218000846daa7d2f49
  board.serial_number MT2314XZ00YA
  function.uid MT2314XZ00YAMLNXS0D0F1
  versions:
      fixed:
        fw.psid MT_0000000894
      running:
        fw.version 28.41.1000
        fw 28.41.1000
      stored:
        fw.version 28.41.1000
        fw 28.41.1000
auxiliary/mlx5_core.eth.1:
  driver mlx5_core.eth

---
v2->v3:
- patch#1 from v2 was separatelly accepted
- patch#1:
  - do not continue in case devlink_info_*serial_number_put() returns
    error
- patch#2:
  - extended patch description
  - extended documentation
- patch#3:
  - do not continue in case devlink_info_function_uid_put() returns error
v1->v2:
- patch#2:
  - fixed possibly uninitialized variable "err"

Jiri Pirko (3):
  net/mlx5: Expose serial numbers in devlink info
  devlink: add function unique identifier to devlink dev info
  net/mlx5: Expose function UID in devlink info

 Documentation/netlink/specs/devlink.yaml      |  4 ++
 .../networking/devlink/devlink-info.rst       | 20 ++++++
 .../net/ethernet/mellanox/mlx5/core/devlink.c | 68 +++++++++++++++++++
 include/net/devlink.h                         |  2 +
 include/uapi/linux/devlink.h                  |  2 +
 net/devlink/dev.c                             |  9 +++
 6 files changed, 105 insertions(+)

-- 
2.49.0