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Message-Id: <20230204100854.388126-8-saeed@kernel.org>
Date: Sat, 4 Feb 2023 02:08:46 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>,
Rahul Rameshbabu <rrameshbabu@...dia.com>,
Gal Pressman <gal@...dia.com>
Subject: [net-next 07/15] net/mlx5: Update Kconfig parameter documentation
From: Rahul Rameshbabu <rrameshbabu@...dia.com>
Provide information for Kconfig flags defined but not documented till this
patch series for the mlx5 driver.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@...dia.com>
Reviewed-by: Gal Pressman <gal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../ethernet/mellanox/mlx5/kconfig.rst | 127 ++++++++++++++----
.../ethernet/mellanox/mlx5/switchdev.rst | 2 +
2 files changed, 100 insertions(+), 29 deletions(-)
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
index a5186d59821e..43b1f7e87ec4 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
@@ -13,6 +13,14 @@ Enabling the driver and kconfig options
| CONFIG_MLX5_CORE=y/m and CONFIG_MLX5_CORE_EN=y.
| For the list of advanced features, please see below.
+**CONFIG_MLX5_BRIDGE=(y/n)**
+
+| Enable :ref:`Ethernet Bridging (BRIDGE) offloading support <mlx5_bridge_offload>`.
+| This will provide the ability to add representors of mlx5 uplink and VF
+| ports to Bridge and offloading rules for traffic between such ports.
+| Supports VLANs (trunk and access modes).
+
+
**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.
@@ -26,28 +34,53 @@ Enabling the driver and kconfig options
| built-in into mlx5_core.ko.
+**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_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_CLS_ACT=(y/n)**
+
+| Enables offload support for TC classifier action (NET_CLS_ACT).
+| Works in both native NIC mode and Switchdev SRIOV mode.
+| Flow-based classifiers, such as those registered through
+| `tc-flower(8)`, are processed by the device, rather than the
+| host. Actions that would then overwrite matching classification
+| results would then be instant due to the offload.
+
+
**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
+| 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)**
+**CONFIG_MLX5_EN_IPSEC=(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.
+| Enables `IPSec XFRM cryptography-offload acceleration <https://support.mellanox.com/s/article/ConnectX-6DX-Bluefield-2-IPsec-HW-Full-Offload-Configuration-Guide>`_.
-**CONFIG_MLX5_CORE_EN_DCB=(y/n)**:
+**CONFIG_MLX5_EN_MACSEC=(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>`_.
+| Build support for MACsec cryptography-offload acceleration in the NIC.
-**CONFIG_MLX5_MPFS=(y/n)**
+**CONFIG_MLX5_EN_RXNFC=(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.
+| 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_EN_TLS=(y/n)**
+
+| TLS cryptography-offload acceleration.
**CONFIG_MLX5_ESWITCH=(y/n)**
@@ -58,13 +91,6 @@ Enabling the driver and kconfig options
| 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.
@@ -73,27 +99,70 @@ Enabling the driver and kconfig options
| 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_INFINIBAND=(y/n/m)** (module mlx5_ib.ko)
-**CONFIG_MLX5_EN_TLS=(y/n)**
+| Provides low-level InfiniBand/RDMA and `RoCE <https://community.mellanox.com/s/article/recommended-network-configuration-examples-for-roce-deployment>`_ support.
-| TLS cryptography-offload acceleration.
+**CONFIG_MLX5_MPFS=(y/n)**
-**CONFIG_MLX5_INFINIBAND=(y/n/m)** (module mlx5_ib.ko)
+| 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.
-| 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.
+| Build support for subfunction.
+| Subfunctons are more light weight than PCI SRIOV VFs. Choosing this option
+| will enable support for creating subfunction devices.
+
+
+**CONFIG_MLX5_SF_MANAGER=(y/n)**
+
+| Build support for subfuction port in the NIC. A Mellanox subfunction
+| port is managed through devlink. A subfunction supports RDMA, netdevice
+| and vdpa device. It is similar to a SRIOV VF but it doesn't require
+| SRIOV support.
+
+
+**CONFIG_MLX5_SW_STEERING=(y/n)**
+
+| Build support for software-managed steering in the NIC.
+
+
+**CONFIG_MLX5_TC_CT=(y/n)**
+
+| Support offloading connection tracking rules via tc ct action.
+
+
+**CONFIG_MLX5_TC_SAMPLE=(y/n)**
+
+| Support offloading sample rules via tc sample action.
+
+
+**CONFIG_MLX5_VDPA=(y/n)**
+
+| Support library for Mellanox VDPA drivers. Provides code that is
+| common for all types of VDPA drivers. The following drivers are planned:
+| net, block.
+
+
+**CONFIG_MLX5_VDPA_NET=(y/n)**
+
+| VDPA network driver for ConnectX6 and newer. Provides offloading
+| of virtio net datapath such that descriptors put on the ring will
+| be executed by the hardware. It also supports a variety of stateless
+| offloads depending on the actual device used and firmware version.
+
+
+**CONFIG_MLX5_VFIO_PCI=(y/n)**
+
+| This provides migration support for MLX5 devices using the VFIO framework.
+
**External options** ( Choose if the corresponding mlx5 feature is required )
+- CONFIG_MLXFW: When chosen, mlx5 firmware flashing support will be enabled (via devlink and ethtool).
- 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
index c8d895a17eb6..01deedb71597 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
@@ -7,6 +7,8 @@ Switchdev
:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+.. _mlx5_bridge_offload:
+
Bridge offload
==============
--
2.39.1
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