The MLX5 poll mode driver library (**librte_pmd_mlx5**) provides support
for **Mellanox ConnectX-4**, **Mellanox ConnectX-4 Lx** , **Mellanox
-ConnectX-5**, **Mellanox ConnectX-6** and **Mellanox Bluefield** families
+ConnectX-5**, **Mellanox ConnectX-6** and **Mellanox BlueField** families
of 10/25/40/50/100/200 Gb/s adapters as well as their virtual functions (VF)
in SR-IOV context.
- RX VLAN stripping.
- TX VLAN insertion.
- RX CRC stripping configuration.
-- Promiscuous mode.
-- Multicast promiscuous mode.
+- Promiscuous mode on PF and VF.
+- Multicast promiscuous mode on PF and VF.
- Hardware checksum offloads.
- Flow director (RTE_FDIR_MODE_PERFECT, RTE_FDIR_MODE_PERFECT_MAC_VLAN and
RTE_ETH_FDIR_REJECT).
- Rx HW timestamp.
- Tunnel types: VXLAN, L3 VXLAN, VXLAN-GPE, GRE, MPLSoGRE, MPLSoUDP.
- Tunnel HW offloads: packet type, inner/outer RSS, IP and UDP checksum verification.
+- NIC HW offloads: encapsulation (vxlan, gre, mplsoudp, mplsogre), NAT, routing, TTL
+ increment/decrement, count, drop, mark. For details please see :ref:`Supported hardware offloads using rte_flow API`.
+- Flow insertion rate of more then million flows per second, when using Direct Rules.
+- Support for multiple rte_flow groups.
Limitations
-----------
is set to multi-packet send or Enhanced multi-packet send. Otherwise it must have
less than 50 segments.
-- Count action for RTE flow is **only supported in Mellanox OFED**.
-
- Flows with a VXLAN Network Identifier equal (or ends to be equal)
to 0 are not supported.
To receive IPv6 Multicast messages on VM, explicitly set the relevant
MAC address using rte_eth_dev_mac_addr_add() API.
-- E-Switch VXLAN tunnel is not supported together with outer VLAN.
-
-- E-Switch Flows with VNI pattern must include the VXLAN decapsulation action.
-
-- E-Switch VXLAN decapsulation Flow:
+- E-Switch decapsulation Flow:
- can be applied to PF port only.
- must specify VF port action (packet redirection from PF to VF).
- - must specify tunnel outer UDP local (destination) port, wildcards not allowed.
- - must specify tunnel outer VNI, wildcards not allowed.
- - must specify tunnel outer local (destination) IPv4 or IPv6 address, wildcards not allowed.
- - optionally may specify tunnel outer remote (source) IPv4 or IPv6, wildcards or group IPs allowed.
- optionally may specify tunnel inner source and destination MAC addresses.
-- E-Switch VXLAN encapsulation Flow:
+- E-Switch encapsulation Flow:
- can be applied to VF ports only.
- must specify PF port action (packet redirection from VF to PF).
- - must specify the VXLAN item with tunnel outer parameters.
- - must specify the tunnel outer VNI in the VXLAN item.
- - must specify the tunnel outer remote (destination) UDP port in the VXLAN item.
- - must specify the tunnel outer local (source) IPv4 or IPv6 in the , this address will locally (with scope link) assigned to the outer network interface, wildcards not allowed.
- - must specify the tunnel outer remote (destination) IPv4 or IPv6 in the VXLAN item, group IPs allowed.
- - must specify the tunnel outer destination MAC address in the VXLAN item, this address will be used to create neigh rule.
Statistics
----------
.. note::
- For Bluefield, target should be set to ``arm64-bluefield-linux-gcc``. This
+ For BlueField, target should be set to ``arm64-bluefield-linux-gcc``. This
will enable ``CONFIG_RTE_LIBRTE_MLX5_PMD`` and set ``RTE_CACHE_LINE_SIZE`` to
64. Default armv8a configuration of make build and meson build set it to 128
then brings performance degradation.
Supported on:
- - x86_64 with ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and Bluefield.
- - POWER8 and ARMv8 with ConnectX-4 LX, ConnectX-5, ConnectX-6 and Bluefield.
+ - x86_64 with ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and BlueField.
+ - POWER9 and ARMv8 with ConnectX-4 LX, ConnectX-5, ConnectX-6 and BlueField.
- ``rxq_cqe_pad_en`` parameter [int]
Supported on:
- - CPU having 128B cacheline with ConnectX-5 and Bluefield.
+ - CPU having 128B cacheline with ConnectX-5 and BlueField.
- ``rxq_pkt_pad_en`` parameter [int]
Supported on:
- - x86_64 with ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and Bluefield.
- - POWER8 and ARMv8 with ConnectX-4 LX, ConnectX-5, ConnectX-6 and Bluefield.
+ - x86_64 with ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and BlueField.
+ - POWER8 and ARMv8 with ConnectX-4 LX, ConnectX-5, ConnectX-6 and BlueField.
- ``mprq_en`` parameter [int]
This option should be used in combination with ``txq_inline`` above.
- On ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and Bluefield without
+ On ConnectX-4, ConnectX-4 LX, ConnectX-5, ConnectX-6 and BlueField without
Enhanced MPW:
- Disabled by default.
- In case ``txq_inline`` is set recommendation is 4.
- On ConnectX-5, ConnectX-6 and Bluefield with Enhanced MPW:
+ On ConnectX-5, ConnectX-6 and BlueField with Enhanced MPW:
- Set to 8 by default.
- Set to 8 by default on ARMv8.
- Set to 4 by default otherwise.
- On Bluefield
+ On BlueField
- Set to 16 by default.
- ``txq_mpw_en`` parameter [int]
A nonzero value enables multi-packet send (MPS) for ConnectX-4 Lx and
- enhanced multi-packet send (Enhanced MPS) for ConnectX-5, ConnectX-6 and Bluefield.
+ enhanced multi-packet send (Enhanced MPS) for ConnectX-5, ConnectX-6 and BlueField.
MPS allows the TX burst function to pack up multiple packets in a
single descriptor session in order to save PCI bandwidth and improve
performance at the cost of a slightly higher CPU usage. When
DEV_TX_OFFLOAD_VXLAN_TNL_TSO, DEV_TX_OFFLOAD_GRE_TNL_TSO, DEV_TX_OFFLOAD_VLAN_INSERT``.
When those offloads are requested the MPS send function will not be used.
- It is currently only supported on the ConnectX-4 Lx, ConnectX-5, ConnectX-6 and Bluefield
+ It is currently only supported on the ConnectX-4 Lx, ConnectX-5, ConnectX-6 and BlueField
families of adapters.
On ConnectX-4 Lx the MPW is considered un-secure hence disabled by default.
Users which enable the MPW should be aware that application which provides incorrect
mbuf descriptors in the Tx burst can lead to serious errors in the host including, on some cases,
NIC to get stuck.
- On ConnectX-5, ConnectX-6 and Bluefield the MPW is secure and enabled by default.
+ On ConnectX-5, ConnectX-6 and BlueField the MPW is secure and enabled by default.
- ``txq_mpw_hdr_dseg_en`` parameter [int]
- ``tx_vec_en`` parameter [int]
- A nonzero value enables Tx vector on ConnectX-5, ConnectX-6 and Bluefield NICs if the number of
+ A nonzero value enables Tx vector on ConnectX-5, ConnectX-6 and BlueField NICs if the number of
global Tx queues on the port is less than ``txqs_max_vec``.
This option cannot be used with certain offloads such as ``DEV_TX_OFFLOAD_TCP_TSO,
DEV_TX_OFFLOAD_VXLAN_TNL_TSO, DEV_TX_OFFLOAD_GRE_TNL_TSO, DEV_TX_OFFLOAD_VLAN_INSERT``.
When those offloads are requested the MPS send function will not be used.
- Enabled by default on ConnectX-5, ConnectX-6 and Bluefield.
+ Enabled by default on ConnectX-5, ConnectX-6 and BlueField.
- ``rx_vec_en`` parameter [int]
A nonzero value enables the DV flow steering assuming it is supported
by the driver.
- The DV flow steering is not supported on switchdev mode.
Disabled by default.
+- ``dv_esw_en`` parameter [int]
+
+ A nonzero value enables E-Switch using Direct Rules.
+
+ Enabled by default if supported.
+
- ``mr_ext_memseg_en`` parameter [int]
A nonzero value enables extending memseg when registering DMA memory. If
- **libmlx5**
Low-level user space driver library for Mellanox
- ConnectX-4/ConnectX-5/ConnectX-6/Bluefield devices, it is automatically loaded
+ ConnectX-4/ConnectX-5/ConnectX-6/BlueField devices, it is automatically loaded
by libibverbs.
This library basically implements send/receive calls to the hardware
their devices:
- mlx5_core: hardware driver managing Mellanox
- ConnectX-4/ConnectX-5/ConnectX-6/Bluefield devices and related Ethernet kernel
+ ConnectX-4/ConnectX-5/ConnectX-6/BlueField devices and related Ethernet kernel
network devices.
- mlx5_ib: InifiniBand device driver.
- ib_uverbs: user space driver for Verbs (entry point for libibverbs).
- **Firmware update**
Mellanox OFED/EN releases include firmware updates for
- ConnectX-4/ConnectX-5/ConnectX-6/Bluefield adapters.
+ ConnectX-4/ConnectX-5/ConnectX-6/BlueField adapters.
Because each release provides new features, these updates must be applied to
match the kernel modules and libraries they come with.
Mellanox OFED/EN
^^^^^^^^^^^^^^^^
-- Mellanox OFED version: **4.4, 4.5** / Mellanox EN version: **4.5**
+- Mellanox OFED version: ** 4.5, 4.6** /
+ Mellanox EN version: **4.5, 4.6**
- firmware version:
- ConnectX-4: **12.21.1000** and above.
- ConnectX-5: **16.21.1000** and above.
- ConnectX-5 Ex: **16.21.1000** and above.
- ConnectX-6: **20.99.5374** and above.
- - Bluefield: **18.99.3950** and above.
+ - BlueField: **18.25.1010** and above.
While these libraries and kernel modules are available on OpenFabrics
Alliance's `website <https://www.openfabrics.org/>`__ and provided by package
6. Compile DPDK and you are ready to go. See instructions on
:ref:`Development Kit Build System <Development_Kit_Build_System>`
+Enable switchdev mode
+---------------------
+
+Switchdev mode is a mode in E-Switch, that binds between representor and VF.
+Representor is a port in DPDK that is connected to a VF in such a way
+that assuming there are no offload flows, each packet that is sent from the VF
+will be received by the corresponding representor. While each packet that is
+sent to a representor will be received by the VF.
+This is very useful in case of SRIOV mode, where the first packet that is sent
+by the VF will be received by the DPDK application which will decide if this
+flow should be offloaded to the E-Switch. After offloading the flow packet
+that the VF that are matching the flow will not be received any more by
+the DPDK application.
+
+1. Enable SRIOV mode:
+
+ .. code-block:: console
+
+ mlxconfig -d <mst device> set SRIOV_EN=true
+
+2. Configure the max number of VFs:
+
+ .. code-block:: console
+
+ mlxconfig -d <mst device> set NUM_OF_VFS=<num of vfs>
+
+3. Reset the FW:
+
+ .. code-block:: console
+
+ mlxfwreset -d <mst device> reset
+
+3. Configure the actual number of VFs:
+
+ .. code-block:: console
+
+ echo <num of vfs > /sys/class/net/<net device>/device/sriov_numvfs
+
+4. Unbind the device (can be rebind after the switchdev mode):
+
+ .. code-block:: console
+
+ echo -n "<device pci address" > /sys/bus/pci/drivers/mlx5_core/unbind
+
+5. Enbale switchdev mode:
+
+ .. code-block:: console
+
+ echo switchdev > /sys/class/net/<net device>/compat/devlink/mode
+
Performance tuning
------------------
- Configure per-lcore cache when creating Mempools for packet buffer.
- Refrain from dynamically allocating/freeing memory in run-time.
+Supported hardware offloads using rte_flow API
+----------------------------------------------
+
+.. _Supported hardware offloads using rte_flow API:
+
+.. table:: Supported hardware offloads using rte_flow API
+
+ +-----------------------+-----------------+-----------------+
+ | Offload | E-Switch | NIC |
+ | | | |
+ +=======================+=================+=================+
+ | Count | | DPDK 19.05 | | DPDK 19.02 |
+ | | | OFED 4.6 | | OFED 4.6 |
+ | | | RDMA-CORE V24 | | RDMA-CORE V23 |
+ | | | ConnectX-5 | | ConnectX-5 |
+ +-----------------------+-----------------+-----------------+
+ | Drop / Queue / RSS | | DPDK 19.05 | | DPDK 18.11 |
+ | | | OFED 4.6 | | OFED 4.5 |
+ | | | RDMA-CORE V24 | | RDMA-CORE V23 |
+ | | | ConnectX-5 | | ConnectX-4 |
+ +-----------------------+-----------------+-----------------+
+ | Encapsulation | | DPDK 19.05 | | DPDK 19.02 |
+ | (VXLAN / NVGRE / RAW) | | OFED 4.6.2 | | OFED 4.6 |
+ | | | RDMA-CORE V24 | | RDMA-CORE V23 |
+ | | | ConnectX-5 | | ConnectX-5 |
+ +-----------------------+-----------------+-----------------+
+ | Header rewrite | | DPDK 19.05 | | DPDK 19.02 |
+ | (set_ipv4_src / | | OFED 4.6.2 | | OFED 4.6.2 |
+ | set_ipv4_dst / | | RDMA-CORE V24 | | RDMA-CORE V23 |
+ | set_ipv6_src / | | ConnectX-5 | | ConnectX-5 |
+ | set_ipv6_dst / | | |
+ | set_tp_src / | | |
+ | set_tp_dst / | | |
+ | dec_ttl / | | |
+ | set_ttl / | | |
+ | set_mac_src / | | |
+ | set_mac_dst) | | |
+ +-----------------------+-----------------+-----------------+
+ | Jump | | DPDK 19.05 | | DPDK 19.02 |
+ | | | OFED 4.6.2 | | OFED 4.6.2 |
+ | | | RDMA-CORE V24 | | N/A |
+ | | | ConnectX-5 | | ConnectX-5 |
+ +-----------------------+-----------------+-----------------+
+ | Mark / Flag | | DPDK 19.05 | | DPDK 18.11 |
+ | | | OFED 4.6 | | OFED 4.5 |
+ | | | RDMA-CORE V24 | | RDMA-CORE V23 |
+ | | | ConnectX-5 | | ConnectX-4 |
+ +-----------------------+-----------------+-----------------+
+ | Port ID | | DPDK 19.05 | | N/A |
+ | | | OFED 4.6 | | N/A |
+ | | | RDMA-CORE V24 | | N/A |
+ | | | ConnectX-5 | | N/A |
+ +-----------------------+-----------------+-----------------+
+
+* Minimum version for each component and nic.
+
Notes for testpmd
-----------------
-------------
This section demonstrates how to launch **testpmd** with Mellanox
-ConnectX-4/ConnectX-5/ConnectX-6/Bluefield devices managed by librte_pmd_mlx5.
+ConnectX-4/ConnectX-5/ConnectX-6/BlueField devices managed by librte_pmd_mlx5.
#. Load the kernel modules:
git.droids-corp.org / dpdk.git / commitdiff