NVIDIA
Ubuntu 20.04 Driver Release Notes
20.04
1 Overview
These are the release notes of Ubuntu 20.04 Driver Release Notes. This document provides instructions on drivers for Mellanox Technologies ConnectX® based adapter cards with Ubuntu 20.04 Inbox Driver environment.
This version supports the following uplinks to servers:
Table 1: Supported Uplinks to Servers
| HCAs | Uplink Speed | Supported Driver |
|---|---|---|
| BlueField®a |
|
mlx5_core (includes the ETH functionality as well) |
| ConnectX®-6 Dx |
|
mlx5_core (includes the ETH functionality as well), mlx5_ib |
| ConnectX®-6 |
|
mlx5_core (includes the ETH functionality as well), mlx5_ib |
| ConnectX®-5 |
|
mlx5_core (includes the ETH functionality as well), mlx5_ib |
| ConnectX®-4 |
|
mlx5_core (includes the ETH functionality as well), mlx5_ib |
| ConnectX®-4 Lx |
|
mlx5_core (includes the ETH functionality as well), mlx5_ib |
| Innova™™ IPsec EN |
|
mlx5_core (includes the ETH functionality as well) |
| Connect-IB® |
|
mlx5_core (includes the ETH functionality as well) |
| ConnectX®-3/ ConnectX®-3 Pro |
|
mlx4_core, mlx4_en, mlx4_ib |
a. BlueField is supported as a standard ConnectX-5 Ethernet NIC only.
b. 56GbE is a Mellanox propriety link speed and can be achieved while connecting a Mellanox adapter cards to Mellanox SX10XX switch series or connecting a Mellanox adapter card to another Mellanox adapter card.
Supported HCAs Firmware Versions
Driver Ubuntu 20.04 supports the following Mellanox network adapter cards firmware versions.
Table 2: Supported HCAs Firmware Versions
| HCA | Recommended Firmware Rev. |
|---|---|
| Connect-IB® | 10.16.1002 |
| BlueField® (Technical Preview) | 18.28.2006 |
| BlueField®-2 (Technical Preview) | 24.28.2006 |
| ConnectX®-6 Dx | 22.28.2006 |
| ConnectX®-6 | 20.28.2006 |
| ConnectX®-5 | 16.28.2006 |
| Innova™™ IPsec EN | 14.22.1002 |
| ConnectX®-4 Lx | 14.28.2006 |
| ConnectX®-4 | 12.28.2006 |
| ConnectX®-3 Pro | 2.42.5000 |
| ConnectX®-3 | 2.42.5000 |
| ConnectX®-2 | 2.9.1000 |
SR-IOV Support
Table 3: SR-IOV Support
| Driver | Support |
|---|---|
| mlx4_core, mlx4_en, mlx4_ib | Eth InfiniBand: Technical Previewa |
| mlx5_core (includes ETH functionality), mlx5_ib | Eth InfiniBand: Technical Previewa |
a. Technical Preview is not a fully supported production feature.
RoCE Support
Table 4: RoCE Support
| Driver | Support |
|---|---|
| mlx4 - RoCE v1/v2 | Yes |
| mlx5 - RoCE v1/v2 | Yes |
VXLAN Support
Table 5: VXLAN Support
| Driver | Support |
|---|---|
| mlx4 - VXLAN offload | Yes |
| mlx5 - VXLAN offload | Yes (without RSS) |
Open vSwitch Hardware Offloads Support
Table 6: Open vSwitch Hardware Offloads Support
| Driver | Support |
|---|---|
| mlx4 | No |
| mlx5 | Yes |
DPDK Support
Table 7: DPDK Support
| Driver | Support |
|---|---|
| mlx4 | Mellanox PMD is enabled by default. |
| mlx5 | Mellanox PMD is enabled by default. |
2 Changes and New Features
Table 8: Changes and New Features
| Feature/Change | Component | Description |
|---|---|---|
| RDMA user-space | rdma-core | Updated the RDMA package to version 28.0 |
| mstflint user-space | mstflint | Updated mstflint package to version 4.13.3 |
| General update | mlx5 | Aligned the mlx5 driver to the Linux upstream kernel driver version 5.4 |
| General update | mlx4 | Aligned the mlx4 driver to the Linux upstream kernel driver version 5.4 |
3 Known Inbox-Related Issues
The following table describes known issues in this release and possible workarounds.
| Internal Ref. | Description |
|---|---|
| 1751408 | Description: BW degradations due to Intel's Page Table Isolation (PTI) CPU security fix. Workaround: Disable the PTI at run time by:
|
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