General Support

NVIDIA Docs Hub NVIDIA Networking Networking Software Red Hat Enterprise Linux (RHEL) 8.5 Driver Documentation General Support

Supported Uplinks to Servers

This version supports the following uplinks to servers.

Uplink/Adapter Card	Driver Name	Uplink Speed
BlueField-2	mlx5	InfiniBand: SDR, FDR, EDR, HDR Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE², 100GbE²
BlueField		InfiniBand: SDR, QDR, FDR, FDR10, EDR Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 100GbE
ConnectX-7		InfiniBand: EDR, HDR100, HDR, NDR200, NDR Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE², 100GbE², 200GbE³
ConnectX-6 Lx		Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE²
ConnectX-6 Dx		Ethernet: 10GbE, 25GbE, 40GbE, 50GbE², 100GbE², 200GbE²
ConnectX-6		InfiniBand: SDR, FDR, EDR, HDR Ethernet: 10GbE, 25GbE, 40GbE, 50GbE², 100GbE², 200GbE²
ConnectX-5/ConnectX-5 Ex		InfiniBand: SDR, QDR, FDR, FDR10, EDR Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 100GbE
ConnectX-4 Lx		Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE
ConnectX-4		InfiniBand: SDR, QDR, FDR, FDR10, EDR Ethernet: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 56GbE¹, 100GbE
Innova™ IPsec EN		Ethernet: 10GbE, 40GbE
Connect-IB®		InfiniBand: SDR, QDR, FDR10, FDR
ConnectX-3/ConnectX-3 Pro	mlx4	InfiniBand: SDR, QDR, FDR10, FDR Ethernet: 10GbE, 40GbE and 56GbE ¹

56GbE is an NVIDIA proprietary link speed and can be achieved while connecting an NVIDIA adapter card to NVIDIASX10XX switch series or when connecting an NVIDIA adapter card to another NVIDIA adapter card.
Speed that supports both NRZ and PAM4 modes in Force mode and Auto-Negotiation mode.
Speed that supports PAM4 mode only.

Warning

BlueField is supported as a standard ConnectX-5 Ethernet NIC only.
BlueField-2 is supported as a standard ConnectX-6 Dx Ethernet NIC. On the DPU, BlueField-2 is only supported as technical preview (i.e., the feature is not fully supported for production).
ConnectX-7 is only supported as technical preview (i.e., the feature is not fully supported for production).

Supported Adapter Card Firmware Versions

This version of Red Hat Enterprise Linux (RHEL) driver supports the following NVIDIA network adapter card firmware versions.

HCA	Recommended Firmware Version
BlueField-2	24.32.1010
ConnectX-6 Lx	26.32.1010
ConnectX-6 Dx	22.32.1010
ConnectX-6	20.32.1010
BlueField (Technical Preview)	18.32.1010
ConnectX-5	16.32.1010
ConnectX-4 Lx	14.32.1010
ConnectX-4	12.28.2006
ConnectX-3/ConnectX-3 Pro	2.42.5000
Innova IPsec EN	14.22.1002
Connect-IB	10.16.1002

Driver	Support
mlx4_core, mlx4_en, mlx4_ib	Ethernet InfiniBand: Technical Preview
mlx5_core (includes Ethernet functionality), mlx5_ib	Ethernet InfiniBand: Technical Preview

Running InfiniBand (IB) SR-IOV requires IB Virtualization support on the OpenSM (Session Manager).
This capability is supported only on OpenSM provided by NVIDIA, that is not available Inbox.
This support can be achieved by running the highest-priority OpenSM on a NVIDIA switch in an IB fabric.
The switch SM can support this feature by enabling the virt flag (# ib sm virt enable).

Please note that this capability is not tested over Inbox environment and considered Technical Preview.

RoCE Support

Driver	Support
mlx4—RoCE v1/v2	Yes
mlx5—RoCE v1/v2	Yes

VXLAN Support

Driver	Support
mlx4—VXLAN offload	Yes
mlx5—VXLAN offload	Yes (without RSS)

DPDK Support

Driver	Support
mlx4	NVIDIA PMD is enabled by default.
mlx5	NVIDIA PMD is enabled by default.

Open vSwitch Hardware Offloads Support

Driver	Support
mlx4	No
mlx5	Yes

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