netdev - [patch iproute2-next v2 0/5] expose devlink instances relationships

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Message-ID: <20230919115644.1157890-1-jiri@resnulli.us>
Date: Tue, 19 Sep 2023 13:56:39 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: stephen@...workplumber.org,
	dsahern@...il.com,
	daniel.machon@...rochip.com
Subject: [patch iproute2-next v2 0/5] expose devlink instances relationships

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

Print out recently added attributes that expose relationships between
devlink instances. This patchset extends the outputs by
"nested_devlink" and "nested_devlink_netns" attributes.

Examples:
$ devlink dev
pci/0000:08:00.0: nested_devlink auxiliary/mlx5_core.eth.0
pci/0000:08:00.1: nested_devlink auxiliary/mlx5_core.eth.1
auxiliary/mlx5_core.eth.1
auxiliary/mlx5_core.eth.0

$ devlink port add pci/0000:08:00.0 flavour pcisf pfnum 0 sfnum 106
pci/0000:08:00.0/32768: type eth netdev eth4 flavour pcisf controller 0 pfnum 0 sfnum 106 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached roce enable
$ devlink port function set pci/0000:08:00.0/32768 state active
$ devlink port show pci/0000:08:00.0/32768
pci/0000:08:00.0/32768: type eth netdev eth4 flavour pcisf controller 0 pfnum 0 sfnum 106 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state active opstate attached roce enable nested_devlink auxiliary/mlx5_core.sf.2

# devlink dev reload auxiliary/mlx5_core.sf.2 netns ns1
$ devlink port show pci/0000:08:00.0/32768
pci/0000:08:00.0/32768: type eth netdev eth4 flavour pcisf controller 0 pfnum 0 sfnum 106 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state active opstate attached roce enable nested_devlink auxiliary/mlx5_core.sf.2 nested_devlink_netns ns1

---
v1->v2:
- patch #2 was added
- patch #3 uses new helper added by patch #2, typo is fixed

Jiri Pirko (5):
  devlink: update headers
  ip/ipnetns: move internals of get_netnsid_from_name() into namespace.c
  devlink: introduce support for netns id for nested handle
  devlink: print nested handle for port function
  devlink: print nested devlink handle for devlink dev

 devlink/devlink.c            | 108 +++++++++++++++++++++++++++++++++--
 include/namespace.h          |   4 ++
 include/uapi/linux/devlink.h |   1 +
 ip/ipnetns.c                 |  45 +--------------
 lib/namespace.c              |  49 ++++++++++++++++
 5 files changed, 159 insertions(+), 48 deletions(-)

-- 
2.41.0