Ubuntu 20.10 Driver Release Notes
20.10
Ubuntu 20.10 Driver Release Notes | ii
Table of Contents
1 Overview .............................................................................................................. 4
Supported HCAs Firmware Versions ........................................................................................... 5
SR-IOV Support............................................................................................................................. 5
RoCE Support ............................................................................................................................... 6
VXLAN Support ............................................................................................................................. 6
Open vSwitch Hardware Offloads Support .................................................................................. 6
DPDK Support .............................................................................................................................. 6
2 Changes and New Features ................................................................................ 7
3 Known Inbox-Related Issues .............................................................................. 8
Ubuntu 20.10 Driver Release Notes | iii
List of Tables
Table 1: Supported Uplinks to Servers .......................................................................................... 4
Table 2: Supported HCAs Firmware Versions ............................................................................... 5
Table 3: SR-IOV Support ................................................................................................................. 5
Table 4: RoCE Support .................................................................................................................... 6
Table 5: VXLAN Support .................................................................................................................. 6
Table 6: Open vSwitch Hardware Offloads Support ...................................................................... 6
Table 7: DPDK Support ................................................................................................................... 6
Table 8: Changes and New Features ............................................................................................. 7
Ubuntu 20.10 Driver Release Notes | 4
1 Overview
These are the release notes of Ubuntu 20.10 Driver Release Notes. This document provides
instructions on drivers for Mellanox Technologies ConnectX® based adapter cards with
Ubuntu 20.10 Inbox Driver environment.
This version supports the following uplinks to servers:
Table 1: Supported Uplinks to Servers
HCAs
Uplink Speed
Supported Driver
BlueField®a
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, and 100GigE
mlx5_core (includes the ETH
functionality as well)
BlueField-2®b
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, 100GigE, 200 GigE
mlx5_core (includes the ETH
functionality as well)
ConnectX®-6 Lx
• Ethernet: 1GigE, 10GigE, 25GigE,
50GigE
mlx5_core (includes the ETH
functionality as well)
ConnectX®-6 Dx
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, 100GigE, 200 GigE
mlx5_core (includes the ETH
functionality as well), mlx5_ib
ConnectX®-6
• InfiniBand: SDR, DDR, QDR, FDR,
EDR, HDR100, HDR
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, 100GigE, 200 GigE
mlx5_core (includes the ETH
functionality as well), mlx5_ib
ConnectX®-5
• InfiniBand: SDR, QDR, FDR, FDR10,
EDR
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, 56GigEc, and
100GigE
mlx5_core (includes the ETH
functionality as well), mlx5_ib
ConnectX®-4
• InfiniBand: SDR, QDR, FDR, FDR10,
EDR
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, 50GigE, 56GigEc, and
100GigE
mlx5_core (includes the ETH
functionality as well), mlx5_ib
ConnectX®-4 Lx
• Ethernet: 1GigE, 10GigE, 25GigE,
40GigE, and 50GigE
mlx5_core (includes the ETH
functionality as well)
• Ethernet: 10GigE, 40GigE
mlx5_core (includes the ETH
functionality as well)
Connect-IB®
• InfiniBand: SDR, QDR, FDR10, FDR
mlx5_core, mlx5_ib
ConnectX®-3/
ConnectX®-3 Pro
• InfiniBand: SDR, QDR, FDR10, FDR
• Ethernet: 10GigE, 40GigE and
56GigEc
mlx4_core, mlx4_en, mlx4_ib
a. BlueField is supported as a standard ConnectX-5 Ethernet NIC only.
Ubuntu 20.10 Driver Release Notes | 5
b. BlueField-2 is supported as a standard ConnectX-6 Dx Ethernet NIC only.
c. 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 20.10 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®
18.29.1016
BlueField®-2
24.29.1016
ConnectX®-6 Lx
26.29.1016
ConnectX®-6 Dx
22.29.1016
ConnectX®-6
20.29.1016
ConnectX®-5
16.29.1016
14.22.1002
ConnectX®-4 Lx
14.29.1016
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.
Ubuntu 20.10 Driver Release Notes | 6
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.
Ubuntu 20.10 Driver Release Notes | 7
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 31.0
mstflint user-space
mstflint
Updated mstflint package to version 4.14.0
General update
mlx5
Aligned the mlx5 driver to the Linux upstream
kernel driver version 5.8
General update
mlx4
Aligned the mlx4 driver to the Linux upstream
kernel driver version 5.8
Ubuntu 20.10 Driver Release Notes | 8
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:
• writing 0 to /sys/kernel/debug/x86/pti_enabled.
or
• adding "nopti" or "pti=off" to grub.conf
Keywords: Performance
Ubuntu 20.10 Driver Release Notes | 9
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