Known Issues

NVIDIA ConnectX-5 Adapter Cards Firmware Release Notes v16.35.3502 LTS

ConnectX-7 has the same feature set and limitations as ConnectX-6 adapter card. For the list of ConnectX-6 Known Issues, please go to https://docs.nvidia.com/networking/category/connectx6fw.

The below are limitations related to ConnectX-7 only.

Internal Ref.

Issue

3200779

Description: Changing dynamic PCIe link width is not supported.

Workaround: N/A

Keywords: PCIe

Discovered in Version: 28.34.1002

2169950

Description: When decapsulation on a packet occurs, the FCS indication is not calculated correctly.

Workaround: N/A

Keywords: FCS

Discovered in Version: 28.34.1002

3174038

Description: SPDM requests received while CPLD burn flow is in progress may be answered with incorrect responses.

Workaround: Avoid activation of the two flows in tandem.

Keywords: SPDM

Discovered in Version: 28.34.1002

3143956

Description: When connecting a ConnectX-7 adapter card to ConnectX-7 adapter card, once in few fwresets the link may raise in 1G speed instead of the highest speed enabled.

Workaround: Toggle the port or rerun mlxfwreset.

Keywords: Speed rate

Discovered in Version: 28.34.1002

3141072

Description: The "max_shaper_rate" configuration query via QEEC mlxreg returns a value translated to hardware granularity.

Workaround: N/A

Keywords: RX Rate-Limiter, Multi-host

Discovered in Version: 28.34.1002

3106146

Description: Live migration of MPV affiliated function pair is not supported when port numbers are changed. Each function should stay on the same port number as before migration.

Workaround: N/A

Keywords: MPV live migration

Discovered in Version: 28.34.1002

3077026

Description: When connecting a ConnectX-7 adapter card to ConnectX-7 adapter card and one side is configured to RM Loopback and the port is toggled, link flap maybe experienced.

Workaround: N/A

Keywords: Link flap

Discovered in Version: 28.34.1002

3077026

Description: When connecting with MMS4X00-NL400 transceiver at 200Gb/s, instability may be experienced upon link up.

Workaround: Wait approximately 30 seconds for stabilization.

Keywords: Transceiver, Link Up

Discovered in Version: 28.34.1002

2870970

Description: GTP encapsulation (flex parser profile 3) is limited to the NIC domain.

Encapsulating in the FDB domain will render a 0-size length in GTP header.

Workaround: N/A

Keywords: GTP encapsulation

Discovered in Version: 28.34.1002

3081264

Description: 10G/40G speeds are not supported on MFS1S00-XXXX modules (200G optics) in ConnectX-7 adapter cards.

Workaround: N/A

Keywords: Optical cables

Discovered in Version: 28.33.4030

3070590

Description: PLL modules are not supported in ConnectX-7 ethernet adapter cards.

Workaround: N/A

Keywords: PLL

Discovered in Version: 28.33.4030

3073517

Description: When connecting a ConnectX-7 adapter card to a ConnectX-5 or an NVIDIA Spectrum switch and trying to raise 10G/40G over 100G optics cable is not supported.

Workaround: N/A

Keywords: Optical cables, ConnectX-5, NVIDIA Spectrum

Discovered in Version: 28.33.4030

3073517

Description: When connecting a ConnectX-7 adapter card to a ConnectX-5 or an NVIDIA Spectrum switch, configuring first 10G/40G and then configuring back 100G we result in linkup failure.

Workaround: Toggle both ConnectX-7 and ConnectX-5 or the NVIDIA Spectrum switch

Keywords: ConnectX-5, NVIDIA Spectrum, linkup

Discovered in Version: 28.33.4030

3070409

Description: When connecting a ConnectX-7 adapter card to a ConnectX-6 Dx or an NVIDIA Spectrum-3 switch, NRZ speeds are not raised when using 200GbE optical cable.

Workaround: Configure PHY_FEC_OVERRIDE on the ConnectX-7 side for the requested speed.

Keywords: Optical cables, NRZ, ConnectX-6 Dx, NVIDIA Spectrum-3, 200GbE optical cable

Discovered in Version: 28.33.4030

2993531

Description: PML1 is disabled by default. Enabling it might result in server hanging.

Workaround: N/A

Keywords: PML1

Discovered in Version: 28.33.2028

2824427

Description: Running with a debug firmware reduces security as if token was applied.

Workaround: N/A

Keywords: Debug Firmware

Discovered in Version: 28.33.2028

-

Description: Upgrading to firmware 28.33.2028 from any previous Engineering Sample (earlier than version 28.98.2406) must be done before installing WinOF-2 v2.90 driver and requires going through the following steps:

  1. Upgrade to 28.98.2406 version while the driver is disabled.

  2. Upgrade to firmware version 28.33.2028 (the driver can be enable at this stage).

Workaround: N/A

Keywords: Firmware upgrade

Discovered in Version: 28.33.2028

-

Description: Downgrading from firmware 28.33.2028 to any previous Engineering Sample firmware is not supported.

Workaround: N/A

Keywords: Firmware downgrade

Discovered in Version: 28.33.2028

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