307 Commits

Author SHA1 Message Date
Konrad Knitter
0502bd2e06 devlink: add devl guard
Add devl guard for scoped_guard().

Example usage:

scoped_guard(devl, priv_to_devlink(pf)) {
	err = init_devlink(pf);
	if (err)
		return err;
}

Co-developed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Konrad Knitter <konrad.knitter@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-01-16 13:04:58 -08:00
Parav Pandit
bb70b0d48d devlink: Improve the port attributes description
Current PF number description is vague, sometimes interpreted as
some PF index. VF number in the PCI specification starts at 1; however
in kernel, it starts at 0 for representor model.

Improve the description of devlink port attributes PF, VF and SF
numbers with these details.

Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Link: https://patch.msgid.link/20241224183706.26571-1-parav@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-02 17:10:57 -08:00
Mateusz Polchlopek
3dbfde7f6b devlink: add devlink_fmsg_dump_skb() function
Add devlink_fmsg_dump_skb() function that adds some diagnostic
information about skb (like length, pkt type, MAC, etc) to devlink
fmsg mechanism using bunch of devlink_fmsg_put() function calls.

Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-12-17 09:32:08 -08:00
Przemek Kitszel
346947223b devlink: add devlink_fmsg_put() macro
Add devlink_fmsg_put() that dispatches based on the type
of the value to put, example: bool -> devlink_fmsg_bool_pair_put().

Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-12-17 09:32:08 -08:00
Przemek Kitszel
e3302f9a50 devlink: remove unused devlink_resource_register()
Remove unused devlink_resource_register(); all the drivers use
devl_resource_register() variant instead.

Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241023131248.27192-8-przemyslaw.kitszel@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-29 16:52:57 -07:00
Przemek Kitszel
2a0df10434 devlink: remove unused devlink_resource_occ_get_register() and _unregister()
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 <wojciech.drewek@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241023131248.27192-7-przemyslaw.kitszel@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-29 16:52:57 -07:00
Christophe JAILLET
82dc29b973 devlink: Constify the 'table_ops' parameter of devl_dpipe_table_register()
"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 <christophe.jaillet@wanadoo.fr>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-05 10:24:57 +01:00
Mateusz Polchlopek
5625ca5640 devlink: extend devlink_param *set pointer
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 <jiri@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-22 13:05:19 -07:00
Fei Qin
3bb946c9d3 devlink: add a new info version tag
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 <fei.qin@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-04-12 11:40:09 +01:00
Parav Pandit
5af3e3876d devlink: Support setting max_io_eqs
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 <jiri@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-04-08 14:10:45 +01:00
Przemek Kitszel
0050629cd3 devlink: convert most of devlink_fmsg_*() to return void
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 <jiri@nvidia.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-20 11:34:51 +01:00
Jiri Pirko
c5e1bf8a51 devlink: introduce possibility to expose info about nested devlinks
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 <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-17 14:01:47 +01:00
Jiri Pirko
9473bc0119 devlink: convert linecard nested devlink to new rel infrastructure
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 <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-17 14:01:47 +01:00
Jiri Pirko
0b7a2721e3 devlink: expose peer SF devlink instance
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 <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-17 14:01:47 +01:00
Dima Chumak
390a24cbc3 devlink: Expose port function commands to control IPsec packet offloads
Expose port function commands to enable / disable IPsec packet offloads,
this is used to control the port IPsec capabilities.

When IPsec packet is disabled for a function of the port (default),
function cannot offload IPsec packet operations (encapsulation and XFRM
policy offload). When enabled, IPsec packet operations can be offloaded
by the function of the port, which includes crypto operation
(Encrypt/Decrypt), IPsec encapsulation and XFRM state and policy
offload.

Example of a PCI VF port which supports IPsec packet offloads:

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_packet disable

$ devlink port function set pci/0000:06:00.0/1 ipsec_packet enable

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_packet enable

Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230825062836.103744-3-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:08:45 -07:00
Dima Chumak
62b6442c58 devlink: Expose port function commands to control IPsec crypto offloads
Expose port function commands to enable / disable IPsec crypto offloads,
this is used to control the port IPsec capabilities.

When IPsec crypto is disabled for a function of the port (default),
function cannot offload any IPsec crypto operations (Encrypt/Decrypt and
XFRM state offloading). When enabled, IPsec crypto operations can be
offloaded by the function of the port.

Example of a PCI VF port which supports IPsec crypto offloads:

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto disable

$ devlink port function set pci/0000:06:00.0/1 ipsec_crypto enable

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto enable

Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230825062836.103744-2-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:08:44 -07:00
Yue Haibing
b876b71a6a devlink: Remove unused devlink_dpipe_table_resource_set() declaration
Commit f655dacb59 ("net: devlink: remove unused locked functions")
removed this but leave the declaration.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230807143214.46648-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-08 16:07:43 -07:00
Yue Haibing
2628d40899 devlink: Remove unused extern declaration devlink_port_region_destroy()
devlink_port_region_destroy() is never implemented since
commit 544e7c33ec ("net: devlink: Add support for port regions").

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230728132113.32888-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-31 14:11:00 -07:00
Randy Dunlap
839f55c5eb devlink: fix kernel-doc notation warnings
Spell function or struct member names correctly.
Use ':' instead of '-' for struct member entries.
Mark one field as private in kernel-doc.
Add a few entries that were missing.
Fix a typo.

These changes prevent kernel-doc warnings:

devlink.h:252: warning: Function parameter or member 'field_id' not described in 'devlink_dpipe_match'
devlink.h:267: warning: Function parameter or member 'field_id' not described in 'devlink_dpipe_action'
devlink.h:310: warning: Function parameter or member 'match_values_count' not described in 'devlink_dpipe_entry'
devlink.h:355: warning: Function parameter or member 'list' not described in 'devlink_dpipe_table'
devlink.h:374: warning: Function parameter or member 'actions_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'matches_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'entries_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'counters_set_update' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'size_get' not described in 'devlink_dpipe_table_ops'
devlink.h:384: warning: Function parameter or member 'headers' not described in 'devlink_dpipe_headers'
devlink.h:384: warning: Function parameter or member 'headers_count' not described in 'devlink_dpipe_headers'
devlink.h:398: warning: Function parameter or member 'unit' not described in 'devlink_resource_size_params'
devlink.h:487: warning: Function parameter or member 'id' not described in 'devlink_param'
devlink.h:645: warning: Function parameter or member 'overwrite_mask' not described in 'devlink_flash_update_params'

Fixes: 1555d204e7 ("devlink: Support for pipeline debug (dpipe)")
Fixes: d9f9b9a4d0 ("devlink: Add support for resource abstraction")
Fixes: eabaef1896 ("devlink: Add devlink_param register and unregister")
Fixes: 5d5b4128c4 ("devlink: introduce flash update overwrite mask")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Moshe Shemesh <moshe@mellanox.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230714045127.18752-5-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Jiri Pirko
5ff9424ea0 devlink: bring port new reply back
In the offending fixes commit I mistakenly removed the reply message of
the port new command. I was under impression it is a new port
notification, partly due to the "notify" in the name of the helper
function. Bring the code sending reply with new port message back, this
time putting it directly to devlink_nl_cmd_port_new_doit()

Fixes: c496daeb86 ("devlink: remove duplicate port notification")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230531142025.2605001-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-01 21:37:32 -07:00
Jiri Pirko
216ba9f4ad devlink: move port_del() to devlink_port_ops
Move port_del() from devlink_ops into newly introduced devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-30 10:32:20 -07:00
Jiri Pirko
216aa67f3e devlink: move port_fn_state_get/set() to devlink_port_ops
Move port_fn_state_get/set() from devlink_ops into newly introduced
devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-30 10:32:20 -07:00
Jiri Pirko
4a490d7154 devlink: move port_fn_migratable_get/set() to devlink_port_ops
Move port_fn_migratable_get/set() from devlink_ops into newly introduced
devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-30 10:32:20 -07:00
Jiri Pirko
933c13275c devlink: move port_fn_roce_get/set() to devlink_port_ops
Move port_fn_roce_get/set() from devlink_ops into newly introduced
devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-30 10:32:20 -07:00
Jiri Pirko
71c93e37cf devlink: move port_fn_hw_addr_get/set() to devlink_port_ops
Move port_fn_hw_addr_get/set() from devlink_ops into newly introduced
devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-30 10:32:20 -07:00