Subject: [net-next 06/15] net/mlx5: Separate mlx5 driver documentation into multiple pages

From: Saeed Mahameed <[email-masked]>
Date: Sat, 4 Feb 2023 02:08:45 -0800

From: Rahul Rameshbabu <[email-masked]>

The mlx5 device driver documentation page has grown in size and should be
split into multiple subpages. This change also contains a table of contents
for these new subpages.

Signed-off-by: Rahul Rameshbabu <[email-masked]>
Reviewed-by: Gal Pressman <[email-masked]>
Reviewed-by: Tariq Toukan <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 .../device_drivers/ethernet/index.rst         |   2 +-
 .../device_drivers/ethernet/mellanox/mlx5.rst | 746 ------------------
 .../ethernet/mellanox/mlx5/devlink.rst        | 222 ++++++
 .../ethernet/mellanox/mlx5/index.rst          |  25 +
 .../ethernet/mellanox/mlx5/kconfig.rst        |  99 +++
 .../ethernet/mellanox/mlx5/switchdev.rst      | 237 ++++++
 .../ethernet/mellanox/mlx5/tracepoints.rst    | 208 +++++
 7 files changed, 792 insertions(+), 747 deletions(-)
 delete mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
 create mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
 create mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5/index.rst
 create mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
 create mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
 create mode 100644 Documentation/networking/device_drivers/ethernet/mellanox/mlx5/tracepoints.rst

diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
index 5196905582c5..392969ac88ad 100644
--- a/Documentation/networking/device_drivers/ethernet/index.rst
+++ b/Documentation/networking/device_drivers/ethernet/index.rst
@@ -39,7 +39,7 @@ Contents:
    intel/ice
    marvell/octeontx2
    marvell/octeon_ep
-   mellanox/mlx5
+   mellanox/mlx5/index
    microsoft/netvsc
    neterion/s2io
    netronome/nfp
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
deleted file mode 100644
index 6969652f593c..000000000000
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
+++ /dev/null
@@ -1,746 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
-
-=================================================
-Mellanox ConnectX(R) mlx5 core VPI Network Driver
-=================================================
-
-Copyright (c) 2019, Mellanox Technologies LTD.
-
-Contents
-========
-
-- `Enabling the driver and kconfig options`_
-- `Devlink info`_
-- `Devlink parameters`_
-- `Bridge offload`_
-- `mlx5 subfunction`_
-- `mlx5 function attributes`_
-- `Devlink health reporters`_
-- `mlx5 tracepoints`_
-
-Enabling the driver and kconfig options
-=======================================
-
-| mlx5 core is modular and most of the major mlx5 core driver features can be selected (compiled in/out)
-| at build time via kernel Kconfig flags.
-| Basic features, ethernet net device rx/tx offloads and XDP, are available with the most basic flags
-| CONFIG_MLX5_CORE=y/m and CONFIG_MLX5_CORE_EN=y.
-| For the list of advanced features, please see below.
-
-**CONFIG_MLX5_CORE=(y/m/n)** (module mlx5_core.ko)
-
-|    The driver can be enabled by choosing CONFIG_MLX5_CORE=y/m in kernel config.
-|    This will provide mlx5 core driver for mlx5 ulps to interface with (mlx5e, mlx5_ib).
-
-
-**CONFIG_MLX5_CORE_EN=(y/n)**
-
-|    Choosing this option will allow basic ethernet netdevice support with all of the standard rx/tx offloads.
-|    mlx5e is the mlx5 ulp driver which provides netdevice kernel interface, when chosen, mlx5e will be
-|    built-in into mlx5_core.ko.
-
-
-**CONFIG_MLX5_EN_ARFS=(y/n)**
-
-|     Enables Hardware-accelerated receive flow steering (arfs) support, and ntuple filtering.
-|     https://community.mellanox.com/s/article/howto-configure-arfs-on-connectx-4
-
-
-**CONFIG_MLX5_EN_RXNFC=(y/n)**
-
-|    Enables ethtool receive network flow classification, which allows user defined
-|    flow rules to direct traffic into arbitrary rx queue via ethtool set/get_rxnfc API.
-
-
-**CONFIG_MLX5_CORE_EN_DCB=(y/n)**:
-
-|    Enables `Data Center Bridging (DCB) Support <https://community.mellanox.com/s/article/howto-auto-config-pfc-and-ets-on-connectx-4-via-lldp-dcbx>`_.
-
-
-**CONFIG_MLX5_MPFS=(y/n)**
-
-|    Ethernet Multi-Physical Function Switch (MPFS) support in ConnectX NIC.
-|    MPFs is required for when `Multi-Host <http://www.mellanox.com/page/multihost>`_ configuration is enabled to allow passing
-|    user configured unicast MAC addresses to the requesting PF.
-
-
-**CONFIG_MLX5_ESWITCH=(y/n)**
-
-|    Ethernet SRIOV E-Switch support in ConnectX NIC. E-Switch provides internal SRIOV packet steering
-|    and switching for the enabled VFs and PF in two available modes:
-|           1) `Legacy SRIOV mode (L2 mac vlan steering based) <https://community.mellanox.com/s/article/howto-configure-sr-iov-for-connectx-4-connectx-5-with-kvm--ethernet-x>`_.
-|           2) `Switchdev mode (eswitch offloads) <https://www.mellanox.com/related-docs/prod_software/ASAP2_Hardware_Offloading_for_vSwitches_User_Manual_v4.4.pdf>`_.
-
-
-**CONFIG_MLX5_CORE_IPOIB=(y/n)**
-
-|    IPoIB offloads & acceleration support.
-|    Requires CONFIG_MLX5_CORE_EN to provide an accelerated interface for the rdma
-|    IPoIB ulp netdevice.
-
-
-**CONFIG_MLX5_FPGA=(y/n)**
-
-|    Build support for the Innova family of network cards by Mellanox Technologies.
-|    Innova network cards are comprised of a ConnectX chip and an FPGA chip on one board.
-|    If you select this option, the mlx5_core driver will include the Innova FPGA core and allow
-|    building sandbox-specific client drivers.
-
-
-**CONFIG_MLX5_EN_IPSEC=(y/n)**
-
-|    Enables `IPSec XFRM cryptography-offload acceleration <http://www.mellanox.com/related-docs/prod_software/Mellanox_Innova_IPsec_Ethernet_Adapter_Card_User_Manual.pdf>`_.
-
-**CONFIG_MLX5_EN_TLS=(y/n)**
-
-|   TLS cryptography-offload acceleration.
-
-
-**CONFIG_MLX5_INFINIBAND=(y/n/m)** (module mlx5_ib.ko)
-
-|   Provides low-level InfiniBand/RDMA and `RoCE <https://community.mellanox.com/s/article/recommended-network-configuration-examples-for-roce-deployment>`_ support.
-
-**CONFIG_MLX5_SF=(y/n)**
-
-|   Build support for subfunction.
-|   Subfunctons are more light weight than PCI SRIOV VFs. Choosing this option
-|   will enable support for creating subfunction devices.
-
-**External options** ( Choose if the corresponding mlx5 feature is required )
-
-- CONFIG_PTP_1588_CLOCK: When chosen, mlx5 ptp support will be enabled
-- CONFIG_VXLAN: When chosen, mlx5 vxlan support will be enabled.
-- CONFIG_MLXFW: When chosen, mlx5 firmware flashing support will be enabled (via devlink and ethtool).
-
-Devlink info
-============
-
-The devlink info reports the running and stored firmware versions on device.
-It also prints the device PSID which represents the HCA board type ID.
-
-User command example::
-
-   $ devlink dev info pci/0000:00:06.0
-      pci/0000:00:06.0:
-      driver mlx5_core
-      versions:
-         fixed:
-            fw.psid MT_0000000009
-         running:
-            fw.version 16.26.0100
-         stored:
-            fw.version 16.26.0100
-
-Devlink parameters
-==================
-
-flow_steering_mode: Device flow steering mode
----------------------------------------------
-The flow steering mode parameter controls the flow steering mode of the driver.
-Two modes are supported:
-1. 'dmfs' - Device managed flow steering.
-2. 'smfs' - Software/Driver managed flow steering.
-
-In DMFS mode, the HW steering entities are created and managed through the
-Firmware.
-In SMFS mode, the HW steering entities are created and managed though by
-the driver directly into hardware without firmware intervention.
-
-SMFS mode is faster and provides better rule insertion rate compared to default DMFS mode.
-
-User command examples:
-
-- Set SMFS flow steering mode::
-
-    $ devlink dev param set pci/0000:06:00.0 name flow_steering_mode value "smfs" cmode runtime
-
-- Read device flow steering mode::
-
-    $ devlink dev param show pci/0000:06:00.0 name flow_steering_mode
-      pci/0000:06:00.0:
-      name flow_steering_mode type driver-specific
-      values:
-         cmode runtime value smfs
-
-enable_roce: RoCE enablement state
-----------------------------------
-RoCE enablement state controls driver support for RoCE traffic.
-When RoCE is disabled, there is no gid table, only raw ethernet QPs are supported and traffic on the well-known UDP RoCE port is handled as raw ethernet traffic.
-
-To change RoCE enablement state, a user must change the driverinit cmode value and run devlink reload.
-
-User command examples:
-
-- Disable RoCE::
-
-    $ devlink dev param set pci/0000:06:00.0 name enable_roce value false cmode driverinit
-    $ devlink dev reload pci/0000:06:00.0
-
-- Read RoCE enablement state::
-
-    $ devlink dev param show pci/0000:06:00.0 name enable_roce
-      pci/0000:06:00.0:
-      name enable_roce type generic
-      values:
-         cmode driverinit value true
-
-esw_port_metadata: Eswitch port metadata state
-----------------------------------------------
-When applicable, disabling eswitch metadata can increase packet rate
-up to 20% depending on the use case and packet sizes.
-
-Eswitch port metadata state controls whether to internally tag packets with
-metadata. Metadata tagging must be enabled for multi-port RoCE, failover
-between representors and stacked devices.
-By default metadata is enabled on the supported devices in E-switch.
-Metadata is applicable only for E-switch in switchdev mode and
-users may disable it when NONE of the below use cases will be in use:
-1. HCA is in Dual/multi-port RoCE mode.
-2. VF/SF representor bonding (Usually used for Live migration)
-3. Stacked devices
-
-When metadata is disabled, the above use cases will fail to initialize if
-users try to enable them.
-
-- Show eswitch port metadata::
-
-    $ devlink dev param show pci/0000:06:00.0 name esw_port_metadata
-      pci/0000:06:00.0:
-        name esw_port_metadata type driver-specific
-          values:
-            cmode runtime value true
-
-- Disable eswitch port metadata::
-
-    $ devlink dev param set pci/0000:06:00.0 name esw_port_metadata value false cmode runtime
-
-- Change eswitch mode to switchdev mode where after choosing the metadata value::
-
-    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
-
-Bridge offload
-==============
-The mlx5 driver implements support for offloading bridge rules when in switchdev
-mode. Linux bridge FDBs are automatically offloaded when mlx5 switchdev
-representor is attached to bridge.
-
-- Change device to switchdev mode::
-
-    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
-
-- Attach mlx5 switchdev representor 'enp8s0f0' to bridge netdev 'bridge1'::
-
-    $ ip link set enp8s0f0 master bridge1
-
-VLANs
------
-Following bridge VLAN functions are supported by mlx5:
-
-- VLAN filtering (including multiple VLANs per port)::
-
-    $ ip link set bridge1 type bridge vlan_filtering 1
-    $ bridge vlan add dev enp8s0f0 vid 2-3
-
-- VLAN push on bridge ingress::
-
-    $ bridge vlan add dev enp8s0f0 vid 3 pvid
-
-- VLAN pop on bridge egress::
-
-    $ bridge vlan add dev enp8s0f0 vid 3 untagged
-
-mlx5 subfunction
-================
-mlx5 supports subfunction management using devlink port (see :ref:`Documentation/networking/devlink/devlink-port.rst <devlink_port>`) interface.
-
-A subfunction has its own function capabilities and its own resources. This
-means a subfunction has its own dedicated queues (txq, rxq, cq, eq). These
-queues are neither shared nor stolen from the parent PCI function.
-
-When a subfunction is RDMA capable, it has its own QP1, GID table, and RDMA
-resources neither shared nor stolen from the parent PCI function.
-
-A subfunction has a dedicated window in PCI BAR space that is not shared
-with the other subfunctions or the parent PCI function. This ensures that all
-devices (netdev, rdma, vdpa, etc.) of the subfunction accesses only assigned
-PCI BAR space.
-
-A subfunction supports eswitch representation through which it supports tc
-offloads. The user configures eswitch to send/receive packets from/to
-the subfunction port.
-
-Subfunctions share PCI level resources such as PCI MSI-X IRQs with
-other subfunctions and/or with its parent PCI function.
-
-Example mlx5 software, system, and device view::
-
-       _______
-      | admin |
-      | user  |----------
-      |_______|         |
-          |             |
-      ____|____       __|______            _________________
-     |         |     |         |          |                 |
-     | devlink |     | tc tool |          |    user         |
-     | tool    |     |_________|          | applications    |
-     |_________|         |                |_________________|
-           |             |                   |          |
-           |             |                   |          |         Userspace
- +---------|-------------|-------------------|----------|--------------------+
-           |             |           +----------+   +----------+   Kernel
-           |             |           |  netdev  |   | rdma dev |
-           |             |           +----------+   +----------+
-   (devlink port add/del |              ^               ^
-    port function set)   |              |               |
-           |             |              +---------------|
-      _____|___          |              |        _______|_______
-     |         |         |              |       | mlx5 class    |
-     | devlink |   +------------+       |       |   drivers     |
-     | kernel  |   | rep netdev |       |       |(mlx5_core,ib) |
-     |_________|   +------------+       |       |_______________|
-           |             |              |               ^
-   (devlink ops)         |              |          (probe/remove)
-  _________|________     |              |           ____|________
- | subfunction      |    |     +---------------+   | subfunction |
- | management driver|-----     | subfunction   |---|  driver     |
- | (mlx5_core)      |          | auxiliary dev |   | (mlx5_core) |
- |__________________|          +---------------+   |_____________|
-           |                                            ^
-  (sf add/del, vhca events)                             |
-           |                                      (device add/del)
-      _____|____                                    ____|________
-     |          |                                  | subfunction |
-     |  PCI NIC |--- activate/deactivate events--->| host driver |
-     |__________|                                  | (mlx5_core) |
-                                                   |_____________|
-
-Subfunction is created using devlink port interface.
-
-- Change device to switchdev mode::
-
-    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
-
-- Add a devlink port of subfunction flavour::
-
-    $ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
-    pci/0000:06:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
-      function:
-        hw_addr 00:00:00:00:00:00 state inactive opstate detached
-
-- Show a devlink port of the subfunction::
-
-    $ devlink port show pci/0000:06:00.0/32768
-    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
-      function:
-        hw_addr 00:00:00:00:00:00 state inactive opstate detached
-
-- Delete a devlink port of subfunction after use::
-
-    $ devlink port del pci/0000:06:00.0/32768
-
-mlx5 function attributes
-========================
-The mlx5 driver provides a mechanism to setup PCI VF/SF function attributes in
-a unified way for SmartNIC and non-SmartNIC.
-
-This is supported only when the eswitch mode is set to switchdev. Port function
-configuration of the PCI VF/SF is supported through devlink eswitch port.
-
-Port function attributes should be set before PCI VF/SF is enumerated by the
-driver.
-
-MAC address setup
------------------
-mlx5 driver support devlink port function attr mechanism to setup MAC
-address. (refer to Documentation/networking/devlink/devlink-port.rst)
-
-RoCE capability setup
----------------------
-Not all mlx5 PCI devices/SFs require RoCE capability.
-
-When RoCE capability is disabled, it saves 1 Mbytes worth of system memory per
-PCI devices/SF.
-
-mlx5 driver support devlink port function attr mechanism to setup RoCE
-capability. (refer to Documentation/networking/devlink/devlink-port.rst)
-
-migratable capability setup
----------------------------
-User who wants mlx5 PCI VFs to be able to perform live migration need to
-explicitly enable the VF migratable capability.
-
-mlx5 driver support devlink port function attr mechanism to setup migratable
-capability. (refer to Documentation/networking/devlink/devlink-port.rst)
-
-SF state setup
---------------
-To use the SF, the user must activate the SF using the SF function state
-attribute.
-
-- Get the state of the SF identified by its unique devlink port index::
-
-   $ devlink port show ens2f0npf0sf88
-   pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
-     function:
-       hw_addr 00:00:00:00:88:88 state inactive opstate detached
-
-- Activate the function and verify its state is active::
-
-   $ devlink port function set ens2f0npf0sf88 state active
-
-   $ devlink port show ens2f0npf0sf88
-   pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
-     function:
-       hw_addr 00:00:00:00:88:88 state active opstate detached
-
-Upon function activation, the PF driver instance gets the event from the device
-that a particular SF was activated. It's the cue to put the device on bus, probe
-it and instantiate the devlink instance and class specific auxiliary devices
-for it.
-
-- Show the auxiliary device and port of the subfunction::
-
-    $ devlink dev show
-    devlink dev show auxiliary/mlx5_core.sf.4
-
-    $ devlink port show auxiliary/mlx5_core.sf.4/1
-    auxiliary/mlx5_core.sf.4/1: type eth netdev p0sf88 flavour virtual port 0 splittable false
-
-    $ rdma link show mlx5_0/1
-    link mlx5_0/1 state ACTIVE physical_state LINK_UP netdev p0sf88
-
-    $ rdma dev show
-    8: rocep6s0f1: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d113 sys_image_guid 248a:0703:00b3:d112
-    13: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112
-
-- Subfunction auxiliary device and class device hierarchy::
-
-                 mlx5_core.sf.4
-          (subfunction auxiliary device)
-                       /\
-                      /  \
-                     /    \
-                    /      \
-                   /        \
-      mlx5_core.eth.4     mlx5_core.rdma.4
-     (sf eth aux dev)     (sf rdma aux dev)
-         |                      |
-         |                      |
-      p0sf88                  mlx5_0
-     (sf netdev)          (sf rdma device)
-
-Additionally, the SF port also gets the event when the driver attaches to the
-auxiliary device of the subfunction. This results in changing the operational
-state of the function. This provides visibility to the user to decide when is it
-safe to delete the SF port for graceful termination of the subfunction.
-
-- Show the SF port operational state::
-
-    $ devlink port show ens2f0npf0sf88
-    pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
-      function:
-        hw_addr 00:00:00:00:88:88 state active opstate attached
-
-Devlink health reporters
-========================
-
-tx reporter
------------
-The tx reporter is responsible for reporting and recovering of the following two error scenarios:
-
-- tx timeout
-    Report on kernel tx timeout detection.
-    Recover by searching lost interrupts.
-- tx error completion
-    Report on error tx completion.
-    Recover by flushing the tx queue and reset it.
-
-tx reporter also support on demand diagnose callback, on which it provides
-real time information of its send queues status.
-
-User commands examples:
-
-- Diagnose send queues status::
-
-    $ devlink health diagnose pci/0000:82:00.0 reporter tx
-
-NOTE: This command has valid output only when interface is up, otherwise the command has empty output.
-
-- Show number of tx errors indicated, number of recover flows ended successfully,
-  is autorecover enabled and graceful period from last recover::
-
-    $ devlink health show pci/0000:82:00.0 reporter tx
-
-rx reporter
------------
-The rx reporter is responsible for reporting and recovering of the following two error scenarios:
-
-- rx queues' initialization (population) timeout
-    Population of rx queues' descriptors on ring initialization is done
-    in napi context via triggering an irq. In case of a failure to get
-    the minimum amount of descriptors, a timeout would occur, and
-    descriptors could be recovered by polling the EQ (Event Queue).
-- rx completions with errors (reported by HW on interrupt context)
-    Report on rx completion error.
-    Recover (if needed) by flushing the related queue and reset it.
-
-rx reporter also supports on demand diagnose callback, on which it
-provides real time information of its receive queues' status.
-
-- Diagnose rx queues' status and corresponding completion queue::
-
-    $ devlink health diagnose pci/0000:82:00.0 reporter rx
-
-NOTE: This command has valid output only when interface is up. Otherwise, the command has empty output.
-
-- Show number of rx errors indicated, number of recover flows ended successfully,
-  is autorecover enabled, and graceful period from last recover::
-
-    $ devlink health show pci/0000:82:00.0 reporter rx
-
-fw reporter
------------
-The fw reporter implements `diagnose` and `dump` callbacks.
-It follows symptoms of fw error such as fw syndrome by triggering
-fw core dump and storing it into the dump buffer.
-The fw reporter diagnose command can be triggered any time by the user to check
-current fw status.
-
-User commands examples:
-
-- Check fw heath status::
-
-    $ devlink health diagnose pci/0000:82:00.0 reporter fw
-
-- Read FW core dump if already stored or trigger new one::
-
-    $ devlink health dump show pci/0000:82:00.0 reporter fw
-
-NOTE: This command can run only on the PF which has fw tracer ownership,
-running it on other PF or any VF will return "Operation not permitted".
-
-fw fatal reporter
------------------
-The fw fatal reporter implements `dump` and `recover` callbacks.
-It follows fatal errors indications by CR-space dump and recover flow.
-The CR-space dump uses vsc interface which is valid even if the FW command
-interface is not functional, which is the case in most FW fatal errors.
-The recover function runs recover flow which reloads the driver and triggers fw
-reset if needed.
-On firmware error, the health buffer is dumped into the dmesg. The log
-level is derived from the error's severity (given in health buffer).
-
-User commands examples:
-
-- Run fw recover flow manually::
-
-    $ devlink health recover pci/0000:82:00.0 reporter fw_fatal
-
-- Read FW CR-space dump if already stored or trigger new one::
-
-    $ devlink health dump show pci/0000:82:00.1 reporter fw_fatal
-
-NOTE: This command can run only on PF.
-
-mlx5 tracepoints
-================
-
-mlx5 driver provides internal tracepoints for tracking and debugging using
-kernel tracepoints interfaces (refer to Documentation/trace/ftrace.rst).
-
-For the list of support mlx5 events, check `/sys/kernel/debug/tracing/events/mlx5/`.
-
-tc and eswitch offloads tracepoints:
-
-- mlx5e_configure_flower: trace flower filter actions and cookies offloaded to mlx5::
-
-    $ echo mlx5:mlx5e_configure_flower >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    tc-6535  [019] ...1  2672.404466: mlx5e_configure_flower: cookie=0000000067874a55 actions= REDIRECT
-
-- mlx5e_delete_flower: trace flower filter actions and cookies deleted from mlx5::
-
-    $ echo mlx5:mlx5e_delete_flower >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    tc-6569  [010] .N.1  2686.379075: mlx5e_delete_flower: cookie=0000000067874a55 actions= NULL
-
-- mlx5e_stats_flower: trace flower stats request::
-
-    $ echo mlx5:mlx5e_stats_flower >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    tc-6546  [010] ...1  2679.704889: mlx5e_stats_flower: cookie=0000000060eb3d6a bytes=0 packets=0 lastused=4295560217
-
-- mlx5e_tc_update_neigh_used_value: trace tunnel rule neigh update value offloaded to mlx5::
-
-    $ echo mlx5:mlx5e_tc_update_neigh_used_value >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u48:4-8806  [009] ...1 55117.882428: mlx5e_tc_update_neigh_used_value: netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=1
-
-- mlx5e_rep_neigh_update: trace neigh update tasks scheduled due to neigh state change events::
-
-    $ echo mlx5:mlx5e_rep_neigh_update >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u48:7-2221  [009] ...1  1475.387435: mlx5e_rep_neigh_update: netdev: ens1f0 MAC: 24:8a:07:9a:17:9a IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_connected=1
-
-Bridge offloads tracepoints:
-
-- mlx5_esw_bridge_fdb_entry_init: trace bridge FDB entry offloaded to mlx5::
-
-    $ echo mlx5:mlx5_esw_bridge_fdb_entry_init >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u20:9-2217    [003] ...1   318.582243: mlx5_esw_bridge_fdb_entry_init: net_device=enp8s0f0_0 addr=e4:fd:05:08:00:02 vid=0 flags=0 used=0
-
-- mlx5_esw_bridge_fdb_entry_cleanup: trace bridge FDB entry deleted from mlx5::
-
-    $ echo mlx5:mlx5_esw_bridge_fdb_entry_cleanup >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    ip-2581    [005] ...1   318.629871: mlx5_esw_bridge_fdb_entry_cleanup: net_device=enp8s0f0_1 addr=e4:fd:05:08:00:03 vid=0 flags=0 used=16
-
-- mlx5_esw_bridge_fdb_entry_refresh: trace bridge FDB entry offload refreshed in
-  mlx5::
-
-    $ echo mlx5:mlx5_esw_bridge_fdb_entry_refresh >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u20:8-3849    [003] ...1       466716: mlx5_esw_bridge_fdb_entry_refresh: net_device=enp8s0f0_0 addr=e4:fd:05:08:00:02 vid=3 flags=0 used=0
-
-- mlx5_esw_bridge_vlan_create: trace bridge VLAN object add on mlx5
-  representor::
-
-    $ echo mlx5:mlx5_esw_bridge_vlan_create >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    ip-2560    [007] ...1   318.460258: mlx5_esw_bridge_vlan_create: vid=1 flags=6
-
-- mlx5_esw_bridge_vlan_cleanup: trace bridge VLAN object delete from mlx5
-  representor::
-
-    $ echo mlx5:mlx5_esw_bridge_vlan_cleanup >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    bridge-2582    [007] ...1   318.653496: mlx5_esw_bridge_vlan_cleanup: vid=2 flags=8
-
-- mlx5_esw_bridge_vport_init: trace mlx5 vport assigned with bridge upper
-  device::
-
-    $ echo mlx5:mlx5_esw_bridge_vport_init >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    ip-2560    [007] ...1   318.458915: mlx5_esw_bridge_vport_init: vport_num=1
-
-- mlx5_esw_bridge_vport_cleanup: trace mlx5 vport removed from bridge upper
-  device::
-
-    $ echo mlx5:mlx5_esw_bridge_vport_cleanup >> set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    ip-5387    [000] ...1       573713: mlx5_esw_bridge_vport_cleanup: vport_num=1
-
-Eswitch QoS tracepoints:
-
-- mlx5_esw_vport_qos_create: trace creation of transmit scheduler arbiter for vport::
-
-    $ echo mlx5:mlx5_esw_vport_qos_create >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-23496   [018] .... 73136.838831: mlx5_esw_vport_qos_create: (0000:82:00.0) vport=2 tsar_ix=4 bw_share=0, max_rate=0 group=000000007b576bb3
-
-- mlx5_esw_vport_qos_config: trace configuration of transmit scheduler arbiter for vport::
-
-    $ echo mlx5:mlx5_esw_vport_qos_config >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-26548   [023] .... 75754.223823: mlx5_esw_vport_qos_config: (0000:82:00.0) vport=1 tsar_ix=3 bw_share=34, max_rate=10000 group=000000007b576bb3
-
-- mlx5_esw_vport_qos_destroy: trace deletion of transmit scheduler arbiter for vport::
-
-    $ echo mlx5:mlx5_esw_vport_qos_destroy >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-27418   [004] .... 76546.680901: mlx5_esw_vport_qos_destroy: (0000:82:00.0) vport=1 tsar_ix=3
-
-- mlx5_esw_group_qos_create: trace creation of transmit scheduler arbiter for rate group::
-
-    $ echo mlx5:mlx5_esw_group_qos_create >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-26578   [008] .... 75776.022112: mlx5_esw_group_qos_create: (0000:82:00.0) group=000000008dac63ea tsar_ix=5
-
-- mlx5_esw_group_qos_config: trace configuration of transmit scheduler arbiter for rate group::
-
-    $ echo mlx5:mlx5_esw_group_qos_config >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-27303   [020] .... 76461.455356: mlx5_esw_group_qos_config: (0000:82:00.0) group=000000008dac63ea tsar_ix=5 bw_share=100 max_rate=20000
-
-- mlx5_esw_group_qos_destroy: trace deletion of transmit scheduler arbiter for group::
-
-    $ echo mlx5:mlx5_esw_group_qos_destroy >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    <...>-27418   [006] .... 76547.187258: mlx5_esw_group_qos_destroy: (0000:82:00.0) group=000000007b576bb3 tsar_ix=1
-
-SF tracepoints:
-
-- mlx5_sf_add: trace addition of the SF port::
-
-    $ echo mlx5:mlx5_sf_add >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    devlink-9363    [031] ..... 24610.188722: mlx5_sf_add: (0000:06:00.0) port_index=32768 controller=0 hw_id=0x8000 sfnum=88
-
-- mlx5_sf_free: trace freeing of the SF port::
-
-    $ echo mlx5:mlx5_sf_free >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    devlink-9830    [038] ..... 26300.404749: mlx5_sf_free: (0000:06:00.0) port_index=32768 controller=0 hw_id=0x8000
-
-- mlx5_sf_hwc_alloc: trace allocating of the hardware SF context::
-
-    $ echo mlx5:mlx5_sf_hwc_alloc >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    devlink-9775    [031] ..... 26296.385259: mlx5_sf_hwc_alloc: (0000:06:00.0) controller=0 hw_id=0x8000 sfnum=88
-
-- mlx5_sf_hwc_free: trace freeing of the hardware SF context::
-
-    $ echo mlx5:mlx5_sf_hwc_free >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u128:3-9093    [046] ..... 24625.365771: mlx5_sf_hwc_free: (0000:06:00.0) hw_id=0x8000
-
-- mlx5_sf_hwc_deferred_free : trace deferred freeing of the hardware SF context::
-
-    $ echo mlx5:mlx5_sf_hwc_deferred_free >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    devlink-9519    [046] ..... 24624.400271: mlx5_sf_hwc_deferred_free: (0000:06:00.0) hw_id=0x8000
-
-- mlx5_sf_vhca_event: trace SF vhca event and state::
-
-    $ echo mlx5:mlx5_sf_vhca_event >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u128:3-9093    [046] ..... 24625.365525: mlx5_sf_vhca_event: (0000:06:00.0) hw_id=0x8000 sfnum=88 vhca_state=1
-
-- mlx5_sf_dev_add : trace SF device add event::
-
-    $ echo mlx5:mlx5_sf_dev_add>> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u128:3-9093    [000] ..... 24616.524495: mlx5_sf_dev_add: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88
-
-- mlx5_sf_dev_del : trace SF device delete event::
-
-    $ echo mlx5:mlx5_sf_dev_del >> /sys/kernel/debug/tracing/set_event
-    $ cat /sys/kernel/debug/tracing/trace
-    ...
-    kworker/u128:3-9093    [044] ..... 24624.400749: mlx5_sf_dev_del: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
new file mode 100644
index 000000000000..eca7ac0334c5
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
@@ -0,0 +1,222 @@
+.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+.. include:: <isonum.txt>
+
+=======
+Devlink
+=======
+
+:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+Contents
+========
+
+- `Info`_
+- `Parameters`_
+- `Health reporters`_
+
+Info
+====
+
+The devlink info reports the running and stored firmware versions on device.
+It also prints the device PSID which represents the HCA board type ID.
+
+User command example::
+
+   $ devlink dev info pci/0000:00:06.0
+      pci/0000:00:06.0:
+      driver mlx5_core
+      versions:
+         fixed:
+            fw.psid MT_0000000009
+         running:
+            fw.version 16.26.0100
+         stored:
+            fw.version 16.26.0100
+
+Parameters
+==========
+
+flow_steering_mode: Device flow steering mode
+---------------------------------------------
+The flow steering mode parameter controls the flow steering mode of the driver.
+Two modes are supported:
+1. 'dmfs' - Device managed flow steering.
+2. 'smfs' - Software/Driver managed flow steering.
+
+In DMFS mode, the HW steering entities are created and managed through the
+Firmware.
+In SMFS mode, the HW steering entities are created and managed though by
+the driver directly into hardware without firmware intervention.
+
+SMFS mode is faster and provides better rule insertion rate compared to default DMFS mode.
+
+User command examples:
+
+- Set SMFS flow steering mode::
+
+    $ devlink dev param set pci/0000:06:00.0 name flow_steering_mode value "smfs" cmode runtime
+
+- Read device flow steering mode::
+
+    $ devlink dev param show pci/0000:06:00.0 name flow_steering_mode
+      pci/0000:06:00.0:
+      name flow_steering_mode type driver-specific
+      values:
+         cmode runtime value smfs
+
+enable_roce: RoCE enablement state
+----------------------------------
+RoCE enablement state controls driver support for RoCE traffic.
+When RoCE is disabled, there is no gid table, only raw ethernet QPs are supported and traffic on the well-known UDP RoCE port is handled as raw ethernet traffic.
+
+To change RoCE enablement state, a user must change the driverinit cmode value and run devlink reload.
+
+User command examples:
+
+- Disable RoCE::
+
+    $ devlink dev param set pci/0000:06:00.0 name enable_roce value false cmode driverinit
+    $ devlink dev reload pci/0000:06:00.0
+
+- Read RoCE enablement state::
+
+    $ devlink dev param show pci/0000:06:00.0 name enable_roce
+      pci/0000:06:00.0:
+      name enable_roce type generic
+      values:
+         cmode driverinit value true
+
+esw_port_metadata: Eswitch port metadata state
+----------------------------------------------
+When applicable, disabling eswitch metadata can increase packet rate
+up to 20% depending on the use case and packet sizes.
+
+Eswitch port metadata state controls whether to internally tag packets with
+metadata. Metadata tagging must be enabled for multi-port RoCE, failover
+between representors and stacked devices.
+By default metadata is enabled on the supported devices in E-switch.
+Metadata is applicable only for E-switch in switchdev mode and
+users may disable it when NONE of the below use cases will be in use:
+1. HCA is in Dual/multi-port RoCE mode.
+2. VF/SF representor bonding (Usually used for Live migration)
+3. Stacked devices
+
+When metadata is disabled, the above use cases will fail to initialize if
+users try to enable them.
+
+- Show eswitch port metadata::
+
+    $ devlink dev param show pci/0000:06:00.0 name esw_port_metadata
+      pci/0000:06:00.0:
+        name esw_port_metadata type driver-specific
+          values:
+            cmode runtime value true
+
+- Disable eswitch port metadata::
+
+    $ devlink dev param set pci/0000:06:00.0 name esw_port_metadata value false cmode runtime
+
+- Change eswitch mode to switchdev mode where after choosing the metadata value::
+
+    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
+
+Health reporters
+================
+
+tx reporter
+-----------
+The tx reporter is responsible for reporting and recovering of the following two error scenarios:
+
+- tx timeout
+    Report on kernel tx timeout detection.
+    Recover by searching lost interrupts.
+- tx error completion
+    Report on error tx completion.
+    Recover by flushing the tx queue and reset it.
+
+tx reporter also support on demand diagnose callback, on which it provides
+real time information of its send queues status.
+
+User commands examples:
+
+- Diagnose send queues status::
+
+    $ devlink health diagnose pci/0000:82:00.0 reporter tx
+
+NOTE: This command has valid output only when interface is up, otherwise the command has empty output.
+
+- Show number of tx errors indicated, number of recover flows ended successfully,
+  is autorecover enabled and graceful period from last recover::
+
+    $ devlink health show pci/0000:82:00.0 reporter tx
+
+rx reporter
+-----------
+The rx reporter is responsible for reporting and recovering of the following two error scenarios:
+
+- rx queues' initialization (population) timeout
+    Population of rx queues' descriptors on ring initialization is done
+    in napi context via triggering an irq. In case of a failure to get
+    the minimum amount of descriptors, a timeout would occur, and
+    descriptors could be recovered by polling the EQ (Event Queue).
+- rx completions with errors (reported by HW on interrupt context)
+    Report on rx completion error.
+    Recover (if needed) by flushing the related queue and reset it.
+
+rx reporter also supports on demand diagnose callback, on which it
+provides real time information of its receive queues' status.
+
+- Diagnose rx queues' status and corresponding completion queue::
+
+    $ devlink health diagnose pci/0000:82:00.0 reporter rx
+
+NOTE: This command has valid output only when interface is up. Otherwise, the command has empty output.
+
+- Show number of rx errors indicated, number of recover flows ended successfully,
+  is autorecover enabled, and graceful period from last recover::
+
+    $ devlink health show pci/0000:82:00.0 reporter rx
+
+fw reporter
+-----------
+The fw reporter implements `diagnose` and `dump` callbacks.
+It follows symptoms of fw error such as fw syndrome by triggering
+fw core dump and storing it into the dump buffer.
+The fw reporter diagnose command can be triggered any time by the user to check
+current fw status.
+
+User commands examples:
+
+- Check fw heath status::
+
+    $ devlink health diagnose pci/0000:82:00.0 reporter fw
+
+- Read FW core dump if already stored or trigger new one::
+
+    $ devlink health dump show pci/0000:82:00.0 reporter fw
+
+NOTE: This command can run only on the PF which has fw tracer ownership,
+running it on other PF or any VF will return "Operation not permitted".
+
+fw fatal reporter
+-----------------
+The fw fatal reporter implements `dump` and `recover` callbacks.
+It follows fatal errors indications by CR-space dump and recover flow.
+The CR-space dump uses vsc interface which is valid even if the FW command
+interface is not functional, which is the case in most FW fatal errors.
+The recover function runs recover flow which reloads the driver and triggers fw
+reset if needed.
+On firmware error, the health buffer is dumped into the dmesg. The log
+level is derived from the error's severity (given in health buffer).
+
+User commands examples:
+
+- Run fw recover flow manually::
+
+    $ devlink health recover pci/0000:82:00.0 reporter fw_fatal
+
+- Read FW CR-space dump if already stored or trigger new one::
+
+    $ devlink health dump show pci/0000:82:00.1 reporter fw_fatal
+
+NOTE: This command can run only on PF.
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/index.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/index.rst
new file mode 100644
index 000000000000..2346459ae6cc
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/index.rst
@@ -0,0 +1,25 @@
+.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+.. include:: <isonum.txt>
+
+Mellanox ConnectX(R) mlx5 core VPI Network Driver
+=================================================
+
+:Copyright: |copy| 2019, Mellanox Technologies LTD.
+:Copyright: |copy| 2020-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   kconfig
+   devlink
+   switchdev
+   tracepoints
+
+.. only::  subproject and html
+
+   Indices
+   =======
+
+   * :ref:`genindex`
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
new file mode 100644
index 000000000000..a5186d59821e
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
@@ -0,0 +1,99 @@
+.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+.. include:: <isonum.txt>
+
+=======================================
+Enabling the driver and kconfig options
+=======================================
+
+:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+| mlx5 core is modular and most of the major mlx5 core driver features can be selected (compiled in/out)
+| at build time via kernel Kconfig flags.
+| Basic features, ethernet net device rx/tx offloads and XDP, are available with the most basic flags
+| CONFIG_MLX5_CORE=y/m and CONFIG_MLX5_CORE_EN=y.
+| For the list of advanced features, please see below.
+
+**CONFIG_MLX5_CORE=(y/m/n)** (module mlx5_core.ko)
+
+|    The driver can be enabled by choosing CONFIG_MLX5_CORE=y/m in kernel config.
+|    This will provide mlx5 core driver for mlx5 ulps to interface with (mlx5e, mlx5_ib).
+
+
+**CONFIG_MLX5_CORE_EN=(y/n)**
+
+|    Choosing this option will allow basic ethernet netdevice support with all of the standard rx/tx offloads.
+|    mlx5e is the mlx5 ulp driver which provides netdevice kernel interface, when chosen, mlx5e will be
+|    built-in into mlx5_core.ko.
+
+
+**CONFIG_MLX5_EN_ARFS=(y/n)**
+
+|     Enables Hardware-accelerated receive flow steering (arfs) support, and ntuple filtering.
+|     https://community.mellanox.com/s/article/howto-configure-arfs-on-connectx-4
+
+
+**CONFIG_MLX5_EN_RXNFC=(y/n)**
+
+|    Enables ethtool receive network flow classification, which allows user defined
+|    flow rules to direct traffic into arbitrary rx queue via ethtool set/get_rxnfc API.
+
+
+**CONFIG_MLX5_CORE_EN_DCB=(y/n)**:
+
+|    Enables `Data Center Bridging (DCB) Support <https://community.mellanox.com/s/article/howto-auto-config-pfc-and-ets-on-connectx-4-via-lldp-dcbx>`_.
+
+
+**CONFIG_MLX5_MPFS=(y/n)**
+
+|    Ethernet Multi-Physical Function Switch (MPFS) support in ConnectX NIC.
+|    MPFs is required for when `Multi-Host <http://www.mellanox.com/page/multihost>`_ configuration is enabled to allow passing
+|    user configured unicast MAC addresses to the requesting PF.
+
+
+**CONFIG_MLX5_ESWITCH=(y/n)**
+
+|    Ethernet SRIOV E-Switch support in ConnectX NIC. E-Switch provides internal SRIOV packet steering
+|    and switching for the enabled VFs and PF in two available modes:
+|           1) `Legacy SRIOV mode (L2 mac vlan steering based) <https://community.mellanox.com/s/article/howto-configure-sr-iov-for-connectx-4-connectx-5-with-kvm--ethernet-x>`_.
+|           2) `Switchdev mode (eswitch offloads) <https://www.mellanox.com/related-docs/prod_software/ASAP2_Hardware_Offloading_for_vSwitches_User_Manual_v4.4.pdf>`_.
+
+
+**CONFIG_MLX5_CORE_IPOIB=(y/n)**
+
+|    IPoIB offloads & acceleration support.
+|    Requires CONFIG_MLX5_CORE_EN to provide an accelerated interface for the rdma
+|    IPoIB ulp netdevice.
+
+
+**CONFIG_MLX5_FPGA=(y/n)**
+
+|    Build support for the Innova family of network cards by Mellanox Technologies.
+|    Innova network cards are comprised of a ConnectX chip and an FPGA chip on one board.
+|    If you select this option, the mlx5_core driver will include the Innova FPGA core and allow
+|    building sandbox-specific client drivers.
+
+
+**CONFIG_MLX5_EN_IPSEC=(y/n)**
+
+|    Enables `IPSec XFRM cryptography-offload acceleration <http://www.mellanox.com/related-docs/prod_software/Mellanox_Innova_IPsec_Ethernet_Adapter_Card_User_Manual.pdf>`_.
+
+**CONFIG_MLX5_EN_TLS=(y/n)**
+
+|   TLS cryptography-offload acceleration.
+
+
+**CONFIG_MLX5_INFINIBAND=(y/n/m)** (module mlx5_ib.ko)
+
+|   Provides low-level InfiniBand/RDMA and `RoCE <https://community.mellanox.com/s/article/recommended-network-configuration-examples-for-roce-deployment>`_ support.
+
+**CONFIG_MLX5_SF=(y/n)**
+
+|   Build support for subfunction.
+|   Subfunctons are more light weight than PCI SRIOV VFs. Choosing this option
+|   will enable support for creating subfunction devices.
+
+**External options** ( Choose if the corresponding mlx5 feature is required )
+
+- CONFIG_PTP_1588_CLOCK: When chosen, mlx5 ptp support will be enabled
+- CONFIG_VXLAN: When chosen, mlx5 vxlan support will be enabled.
+- CONFIG_MLXFW: When chosen, mlx5 firmware flashing support will be enabled (via devlink and ethtool).
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
new file mode 100644
index 000000000000..c8d895a17eb6
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
@@ -0,0 +1,237 @@
+.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+.. include:: <isonum.txt>
+
+=========
+Switchdev
+=========
+
+:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+Bridge offload
+==============
+
+The mlx5 driver implements support for offloading bridge rules when in switchdev
+mode. Linux bridge FDBs are automatically offloaded when mlx5 switchdev
+representor is attached to bridge.
+
+- Change device to switchdev mode::
+
+    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
+
+- Attach mlx5 switchdev representor 'enp8s0f0' to bridge netdev 'bridge1'::
+
+    $ ip link set enp8s0f0 master bridge1
+
+VLANs
+-----
+
+Following bridge VLAN functions are supported by mlx5:
+
+- VLAN filtering (including multiple VLANs per port)::
+
+    $ ip link set bridge1 type bridge vlan_filtering 1
+    $ bridge vlan add dev enp8s0f0 vid 2-3
+
+- VLAN push on bridge ingress::
+
+    $ bridge vlan add dev enp8s0f0 vid 3 pvid
+
+- VLAN pop on bridge egress::
+
+    $ bridge vlan add dev enp8s0f0 vid 3 untagged
+
+Subfunction
+===========
+
+mlx5 supports subfunction management using devlink port (see :ref:`Documentation/networking/devlink/devlink-port.rst <devlink_port>`) interface.
+
+A subfunction has its own function capabilities and its own resources. This
+means a subfunction has its own dedicated queues (txq, rxq, cq, eq). These
+queues are neither shared nor stolen from the parent PCI function.
+
+When a subfunction is RDMA capable, it has its own QP1, GID table, and RDMA
+resources neither shared nor stolen from the parent PCI function.
+
+A subfunction has a dedicated window in PCI BAR space that is not shared
+with the other subfunctions or the parent PCI function. This ensures that all
+devices (netdev, rdma, vdpa, etc.) of the subfunction accesses only assigned
+PCI BAR space.
+
+A subfunction supports eswitch representation through which it supports tc
+offloads. The user configures eswitch to send/receive packets from/to
+the subfunction port.
+
+Subfunctions share PCI level resources such as PCI MSI-X IRQs with
+other subfunctions and/or with its parent PCI function.
+
+Example mlx5 software, system, and device view::
+
+       _______
+      | admin |
+      | user  |----------
+      |_______|         |
+          |             |
+      ____|____       __|______            _________________
+     |         |     |         |          |                 |
+     | devlink |     | tc tool |          |    user         |
+     | tool    |     |_________|          | applications    |
+     |_________|         |                |_________________|
+           |             |                   |          |
+           |             |                   |          |         Userspace
+ +---------|-------------|-------------------|----------|--------------------+
+           |             |           +----------+   +----------+   Kernel
+           |             |           |  netdev  |   | rdma dev |
+           |             |           +----------+   +----------+
+   (devlink port add/del |              ^               ^
+    port function set)   |              |               |
+           |             |              +---------------|
+      _____|___          |              |        _______|_______
+     |         |         |              |       | mlx5 class    |
+     | devlink |   +------------+       |       |   drivers     |
+     | kernel  |   | rep netdev |       |       |(mlx5_core,ib) |
+     |_________|   +------------+       |       |_______________|
+           |             |              |               ^
+   (devlink ops)         |              |          (probe/remove)
+  _________|________     |              |           ____|________
+ | subfunction      |    |     +---------------+   | subfunction |
+ | management driver|-----     | subfunction   |---|  driver     |
+ | (mlx5_core)      |          | auxiliary dev |   | (mlx5_core) |
+ |__________________|          +---------------+   |_____________|
+           |                                            ^
+  (sf add/del, vhca events)                             |
+           |                                      (device add/del)
+      _____|____                                    ____|________
+     |          |                                  | subfunction |
+     |  PCI NIC |--- activate/deactivate events--->| host driver |
+     |__________|                                  | (mlx5_core) |
+                                                   |_____________|
+
+Subfunction is created using devlink port interface.
+
+- Change device to switchdev mode::
+
+    $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
+
+- Add a devlink port of subfunction flavour::
+
+    $ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
+    pci/0000:06:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
+      function:
+        hw_addr 00:00:00:00:00:00 state inactive opstate detached
+
+- Show a devlink port of the subfunction::
+
+    $ devlink port show pci/0000:06:00.0/32768
+    pci/0000:06:00.0/32768: type eth netdev enp6s0pf0sf88 flavour pcisf pfnum 0 sfnum 88
+      function:
+        hw_addr 00:00:00:00:00:00 state inactive opstate detached
+
+- Delete a devlink port of subfunction after use::
+
+    $ devlink port del pci/0000:06:00.0/32768
+
+Function attributes
+===================
+
+The mlx5 driver provides a mechanism to setup PCI VF/SF function attributes in
+a unified way for SmartNIC and non-SmartNIC.
+
+This is supported only when the eswitch mode is set to switchdev. Port function
+configuration of the PCI VF/SF is supported through devlink eswitch port.
+
+Port function attributes should be set before PCI VF/SF is enumerated by the
+driver.
+
+MAC address setup
+-----------------
+
+mlx5 driver support devlink port function attr mechanism to setup MAC
+address. (refer to Documentation/networking/devlink/devlink-port.rst)
+
+RoCE capability setup
+~~~~~~~~~~~~~~~~~~~~~
+Not all mlx5 PCI devices/SFs require RoCE capability.
+
+When RoCE capability is disabled, it saves 1 Mbytes worth of system memory per
+PCI devices/SF.
+
+mlx5 driver support devlink port function attr mechanism to setup RoCE
+capability. (refer to Documentation/networking/devlink/devlink-port.rst)
+
+migratable capability setup
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+User who wants mlx5 PCI VFs to be able to perform live migration need to
+explicitly enable the VF migratable capability.
+
+mlx5 driver support devlink port function attr mechanism to setup migratable
+capability. (refer to Documentation/networking/devlink/devlink-port.rst)
+
+SF state setup
+--------------
+
+To use the SF, the user must activate the SF using the SF function state
+attribute.
+
+- Get the state of the SF identified by its unique devlink port index::
+
+   $ devlink port show ens2f0npf0sf88
+   pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
+     function:
+       hw_addr 00:00:00:00:88:88 state inactive opstate detached
+
+- Activate the function and verify its state is active::
+
+   $ devlink port function set ens2f0npf0sf88 state active
+
+   $ devlink port show ens2f0npf0sf88
+   pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
+     function:
+       hw_addr 00:00:00:00:88:88 state active opstate detached
+
+Upon function activation, the PF driver instance gets the event from the device
+that a particular SF was activated. It's the cue to put the device on bus, probe
+it and instantiate the devlink instance and class specific auxiliary devices
+for it.
+
+- Show the auxiliary device and port of the subfunction::
+
+    $ devlink dev show
+    devlink dev show auxiliary/mlx5_core.sf.4
+
+    $ devlink port show auxiliary/mlx5_core.sf.4/1
+    auxiliary/mlx5_core.sf.4/1: type eth netdev p0sf88 flavour virtual port 0 splittable false
+
+    $ rdma link show mlx5_0/1
+    link mlx5_0/1 state ACTIVE physical_state LINK_UP netdev p0sf88
+
+    $ rdma dev show
+    8: rocep6s0f1: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d113 sys_image_guid 248a:0703:00b3:d112
+    13: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112
+
+- Subfunction auxiliary device and class device hierarchy::
+
+                 mlx5_core.sf.4
+          (subfunction auxiliary device)
+                       /\
+                      /  \
+                     /    \
+                    /      \
+                   /        \
+      mlx5_core.eth.4     mlx5_core.rdma.4
+     (sf eth aux dev)     (sf rdma aux dev)
+         |                      |
+         |                      |
+      p0sf88                  mlx5_0
+     (sf netdev)          (sf rdma device)
+
+Additionally, the SF port also gets the event when the driver attaches to the
+auxiliary device of the subfunction. This results in changing the operational
+state of the function. This provides visibility to the user to decide when is it
+safe to delete the SF port for graceful termination of the subfunction.
+
+- Show the SF port operational state::
+
+    $ devlink port show ens2f0npf0sf88
+    pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 external false splittable false
+      function:
+        hw_addr 00:00:00:00:88:88 state active opstate attached
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/tracepoints.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/tracepoints.rst
new file mode 100644
index 000000000000..04f59189e75a
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/tracepoints.rst
@@ -0,0 +1,208 @@
+.. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+.. include:: <isonum.txt>
+
+===========
+Tracepoints
+===========
+
+:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+mlx5 driver provides internal tracepoints for tracking and debugging using
+kernel tracepoints interfaces (refer to Documentation/trace/ftrace.rst).
+
+For the list of support mlx5 events, check `/sys/kernel/debug/tracing/events/mlx5/`.
+
+tc and eswitch offloads tracepoints:
+
+- mlx5e_configure_flower: trace flower filter actions and cookies offloaded to mlx5::
+
+    $ echo mlx5:mlx5e_configure_flower >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    tc-6535  [019] ...1  2672.404466: mlx5e_configure_flower: cookie=0000000067874a55 actions= REDIRECT
+
+- mlx5e_delete_flower: trace flower filter actions and cookies deleted from mlx5::
+
+    $ echo mlx5:mlx5e_delete_flower >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    tc-6569  [010] .N.1  2686.379075: mlx5e_delete_flower: cookie=0000000067874a55 actions= NULL
+
+- mlx5e_stats_flower: trace flower stats request::
+
+    $ echo mlx5:mlx5e_stats_flower >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    tc-6546  [010] ...1  2679.704889: mlx5e_stats_flower: cookie=0000000060eb3d6a bytes=0 packets=0 lastused=4295560217
+
+- mlx5e_tc_update_neigh_used_value: trace tunnel rule neigh update value offloaded to mlx5::
+
+    $ echo mlx5:mlx5e_tc_update_neigh_used_value >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u48:4-8806  [009] ...1 55117.882428: mlx5e_tc_update_neigh_used_value: netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=1
+
+- mlx5e_rep_neigh_update: trace neigh update tasks scheduled due to neigh state change events::
+
+    $ echo mlx5:mlx5e_rep_neigh_update >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u48:7-2221  [009] ...1  1475.387435: mlx5e_rep_neigh_update: netdev: ens1f0 MAC: 24:8a:07:9a:17:9a IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_connected=1
+
+Bridge offloads tracepoints:
+
+- mlx5_esw_bridge_fdb_entry_init: trace bridge FDB entry offloaded to mlx5::
+
+    $ echo mlx5:mlx5_esw_bridge_fdb_entry_init >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u20:9-2217    [003] ...1   318.582243: mlx5_esw_bridge_fdb_entry_init: net_device=enp8s0f0_0 addr=e4:fd:05:08:00:02 vid=0 flags=0 used=0
+
+- mlx5_esw_bridge_fdb_entry_cleanup: trace bridge FDB entry deleted from mlx5::
+
+    $ echo mlx5:mlx5_esw_bridge_fdb_entry_cleanup >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    ip-2581    [005] ...1   318.629871: mlx5_esw_bridge_fdb_entry_cleanup: net_device=enp8s0f0_1 addr=e4:fd:05:08:00:03 vid=0 flags=0 used=16
+
+- mlx5_esw_bridge_fdb_entry_refresh: trace bridge FDB entry offload refreshed in
+  mlx5::
+
+    $ echo mlx5:mlx5_esw_bridge_fdb_entry_refresh >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u20:8-3849    [003] ...1       466716: mlx5_esw_bridge_fdb_entry_refresh: net_device=enp8s0f0_0 addr=e4:fd:05:08:00:02 vid=3 flags=0 used=0
+
+- mlx5_esw_bridge_vlan_create: trace bridge VLAN object add on mlx5
+  representor::
+
+    $ echo mlx5:mlx5_esw_bridge_vlan_create >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    ip-2560    [007] ...1   318.460258: mlx5_esw_bridge_vlan_create: vid=1 flags=6
+
+- mlx5_esw_bridge_vlan_cleanup: trace bridge VLAN object delete from mlx5
+  representor::
+
+    $ echo mlx5:mlx5_esw_bridge_vlan_cleanup >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    bridge-2582    [007] ...1   318.653496: mlx5_esw_bridge_vlan_cleanup: vid=2 flags=8
+
+- mlx5_esw_bridge_vport_init: trace mlx5 vport assigned with bridge upper
+  device::
+
+    $ echo mlx5:mlx5_esw_bridge_vport_init >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    ip-2560    [007] ...1   318.458915: mlx5_esw_bridge_vport_init: vport_num=1
+
+- mlx5_esw_bridge_vport_cleanup: trace mlx5 vport removed from bridge upper
+  device::
+
+    $ echo mlx5:mlx5_esw_bridge_vport_cleanup >> set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    ip-5387    [000] ...1       573713: mlx5_esw_bridge_vport_cleanup: vport_num=1
+
+Eswitch QoS tracepoints:
+
+- mlx5_esw_vport_qos_create: trace creation of transmit scheduler arbiter for vport::
+
+    $ echo mlx5:mlx5_esw_vport_qos_create >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-23496   [018] .... 73136.838831: mlx5_esw_vport_qos_create: (0000:82:00.0) vport=2 tsar_ix=4 bw_share=0, max_rate=0 group=000000007b576bb3
+
+- mlx5_esw_vport_qos_config: trace configuration of transmit scheduler arbiter for vport::
+
+    $ echo mlx5:mlx5_esw_vport_qos_config >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-26548   [023] .... 75754.223823: mlx5_esw_vport_qos_config: (0000:82:00.0) vport=1 tsar_ix=3 bw_share=34, max_rate=10000 group=000000007b576bb3
+
+- mlx5_esw_vport_qos_destroy: trace deletion of transmit scheduler arbiter for vport::
+
+    $ echo mlx5:mlx5_esw_vport_qos_destroy >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-27418   [004] .... 76546.680901: mlx5_esw_vport_qos_destroy: (0000:82:00.0) vport=1 tsar_ix=3
+
+- mlx5_esw_group_qos_create: trace creation of transmit scheduler arbiter for rate group::
+
+    $ echo mlx5:mlx5_esw_group_qos_create >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-26578   [008] .... 75776.022112: mlx5_esw_group_qos_create: (0000:82:00.0) group=000000008dac63ea tsar_ix=5
+
+- mlx5_esw_group_qos_config: trace configuration of transmit scheduler arbiter for rate group::
+
+    $ echo mlx5:mlx5_esw_group_qos_config >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-27303   [020] .... 76461.455356: mlx5_esw_group_qos_config: (0000:82:00.0) group=000000008dac63ea tsar_ix=5 bw_share=100 max_rate=20000
+
+- mlx5_esw_group_qos_destroy: trace deletion of transmit scheduler arbiter for group::
+
+    $ echo mlx5:mlx5_esw_group_qos_destroy >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    <...>-27418   [006] .... 76547.187258: mlx5_esw_group_qos_destroy: (0000:82:00.0) group=000000007b576bb3 tsar_ix=1
+
+SF tracepoints:
+
+- mlx5_sf_add: trace addition of the SF port::
+
+    $ echo mlx5:mlx5_sf_add >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    devlink-9363    [031] ..... 24610.188722: mlx5_sf_add: (0000:06:00.0) port_index=32768 controller=0 hw_id=0x8000 sfnum=88
+
+- mlx5_sf_free: trace freeing of the SF port::
+
+    $ echo mlx5:mlx5_sf_free >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    devlink-9830    [038] ..... 26300.404749: mlx5_sf_free: (0000:06:00.0) port_index=32768 controller=0 hw_id=0x8000
+
+- mlx5_sf_hwc_alloc: trace allocating of the hardware SF context::
+
+    $ echo mlx5:mlx5_sf_hwc_alloc >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    devlink-9775    [031] ..... 26296.385259: mlx5_sf_hwc_alloc: (0000:06:00.0) controller=0 hw_id=0x8000 sfnum=88
+
+- mlx5_sf_hwc_free: trace freeing of the hardware SF context::
+
+    $ echo mlx5:mlx5_sf_hwc_free >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u128:3-9093    [046] ..... 24625.365771: mlx5_sf_hwc_free: (0000:06:00.0) hw_id=0x8000
+
+- mlx5_sf_hwc_deferred_free : trace deferred freeing of the hardware SF context::
+
+    $ echo mlx5:mlx5_sf_hwc_deferred_free >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    devlink-9519    [046] ..... 24624.400271: mlx5_sf_hwc_deferred_free: (0000:06:00.0) hw_id=0x8000
+
+- mlx5_sf_vhca_event: trace SF vhca event and state::
+
+    $ echo mlx5:mlx5_sf_vhca_event >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u128:3-9093    [046] ..... 24625.365525: mlx5_sf_vhca_event: (0000:06:00.0) hw_id=0x8000 sfnum=88 vhca_state=1
+
+- mlx5_sf_dev_add : trace SF device add event::
+
+    $ echo mlx5:mlx5_sf_dev_add>> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u128:3-9093    [000] ..... 24616.524495: mlx5_sf_dev_add: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88
+
+- mlx5_sf_dev_del : trace SF device delete event::
+
+    $ echo mlx5:mlx5_sf_dev_del >> /sys/kernel/debug/tracing/set_event
+    $ cat /sys/kernel/debug/tracing/trace
+    ...
+    kworker/u128:3-9093    [044] ..... 24624.400749: mlx5_sf_dev_del: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88
-- 
2.39.1