linux-toradex.git/include/net/devlink.h, branch v6.13-rc1

devlink: remove unused devlink_resource_register()

2024-10-29T23:52:57+00:00

Remove unused devlink_resource_register(); all the drivers use
devl_resource_register() variant instead.

Reviewed-by: Wojciech Drewek 
Reviewed-by: Jiri Pirko 
Reviewed-by: Joe Damato 
Signed-off-by: Przemek Kitszel 
Link: https://patch.msgid.link/20241023131248.27192-8-przemyslaw.kitszel@intel.com
Signed-off-by: Jakub Kicinski

devlink: remove unused devlink_resource_occ_get_register() and _unregister()

2024-10-29T23:52:57+00:00

Remove not used devlink_resource_occ_get_register() and
devlink_resource_occ_get_unregister() functions; current devlink resource
users are fine with devl_ variants of the two.

Reviewed-by: Wojciech Drewek 
Reviewed-by: Jiri Pirko 
Reviewed-by: Joe Damato 
Signed-off-by: Przemek Kitszel 
Link: https://patch.msgid.link/20241023131248.27192-7-przemyslaw.kitszel@intel.com
Signed-off-by: Jakub Kicinski

devlink: Constify the 'table_ops' parameter of devl_dpipe_table_register()

2024-06-05T09:24:57+00:00

"struct devlink_dpipe_table_ops" only contains some function pointers.

Update "struct devlink_dpipe_table" and the 'table_ops' parameter of
devl_dpipe_table_register() so that structures in drivers can be
constified.

Constifying these structures will move some data to a read-only section, so
increase overall security.

Signed-off-by: Christophe JAILLET 
Reviewed-by: Wojciech Drewek 
Reviewed-by: Ido Schimmel 
Signed-off-by: David S. Miller

devlink: extend devlink_param *set pointer

2024-04-22T20:05:19+00:00

Extend devlink_param *set function pointer to take extack as a param.
Sometimes it is needed to pass information to the end user from set
function. It is more proper to use for that netlink instead of passing
message to dmesg.

Reviewed-by: Jiri Pirko 
Reviewed-by: Przemek Kitszel 
Signed-off-by: Mateusz Polchlopek 
Signed-off-by: Tony Nguyen

devlink: add a new info version tag

2024-04-12T10:40:09+00:00

Add definition and documentation for the new generic
info "board.part_number".

The new one is for part number specific use, and board.id
is modified to match the documentation in devlink-info.

Signed-off-by: Fei Qin 
Signed-off-by: Louis Peens 
Signed-off-by: David S. Miller

devlink: Support setting max_io_eqs

2024-04-08T13:10:45+00:00

Many devices send event notifications for the IO queues,
such as tx and rx queues, through event queues.

Enable a privileged owner, such as a hypervisor PF, to set the number
of IO event queues for the VF and SF during the provisioning stage.

example:
Get maximum IO event queues of the VF device::

  $ devlink port show pci/0000:06:00.0/2
  pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
      function:
          hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 10

Set maximum IO event queues of the VF device::

  $ devlink port function set pci/0000:06:00.0/2 max_io_eqs 32

  $ devlink port show pci/0000:06:00.0/2
  pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
      function:
          hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 32

Reviewed-by: Jiri Pirko 
Reviewed-by: Shay Drory 
Signed-off-by: Parav Pandit 
Signed-off-by: David S. Miller

devlink: convert most of devlink_fmsg_*() to return void

2023-10-20T10:34:51+00:00

Since struct devlink_fmsg retains error by now (see 1st patch of this
series), there is no longer need to keep returning it in each call.

This is a separate commit to allow per-driver conversion to stop using
those return values.

Reviewed-by: Jiri Pirko 
Signed-off-by: Przemek Kitszel 
Signed-off-by: David S. Miller

devlink: introduce possibility to expose info about nested devlinks

2023-09-17T13:01:47+00:00

In mlx5, there is a devlink instance created for PCI device. Also, one
separate devlink instance is created for auxiliary device that
represents the netdev of uplink port. This relation is currently
invisible to the devlink user.

Benefit from the rel infrastructure and allow for nested devlink
instance to set the relationship for the nested-in devlink instance.
Note that there may be many nested instances, therefore use xarray to
hold the list of rel_indexes for individual nested instances.

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

devlink: convert linecard nested devlink to new rel infrastructure

2023-09-17T13:01:47+00:00

Benefit from the newly introduced rel infrastructure, treat the linecard
nested devlink instances in the same way as port function instances.
Convert the code to use the rel infrastructure.

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

devlink: expose peer SF devlink instance

2023-09-17T13:01:47+00:00

Introduce a new helper devl_port_fn_devlink_set() to be used by driver
assigning a devlink instance to the peer devlink port function.

Expose this to user over new netlink attribute nested under port
function nest to expose devlink handle related to the port function.

This is particularly helpful for user to understand the relationship
between devlink instances created for SFs and the port functions
they belong to.

Note that caller of devlink_port_notify() needs to hold devlink
instance lock, put the assertion to devl_port_fn_devlink_set() to make
this requirement explicit. Also note the limitations that only allow to
make this assignment for registered objects.

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller