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Code Issues Releases Wiki Activity

net/mlx5: Update Kconfig parameter documentation

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Provide information for Kconfig flags defined but not documented till this
patch series for the mlx5 driver.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Rahul Rameshbabu 2022-10-15 22:25:12 -07:00 committed by Saeed Mahameed
parent f2d51e5793
commit a12ba19269
2 changed files with 103 additions and 32 deletions
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133
Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
View file

@ -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.
@ -26,10 +34,42 @@ 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_IPSEC=(y/n)**
| Enables `IPSec XFRM cryptography-offload acceleration <https://support.mellanox.com/s/article/ConnectX-6DX-Bluefield-2-IPsec-HW-Full-Offload-Configuration-Guide>`_.
**CONFIG_MLX5_EN_MACSEC=(y/n)**
| Build support for MACsec cryptography-offload acceleration in the NIC.
**CONFIG_MLX5_EN_RXNFC=(y/n)**
@ -38,16 +78,9 @@ Enabling the driver and kconfig options
| flow rules to direct traffic into arbitrary rx queue via ethtool set/get_rxnfc API.
**CONFIG_MLX5_CORE_EN_DCB=(y/n)**:
**CONFIG_MLX5_EN_TLS=(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.
| 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_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.
| Provides low-level InfiniBand/RDMA and `RoCE <https://community.mellanox.com/s/article/recommended-network-configuration-examples-for-roce-deployment>`_ support.
**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_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).

2
Documentation/networking/device_drivers/ethernet/mellanox/mlx5/switchdev.rst
View file

@ -7,6 +7,8 @@ Switchdev
:Copyright: |copy| 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
.. _mlx5_bridge_offload:
Bridge offload
==============