Known Issues
VF Network Function Limitations in SR-IOV Legacy Mode
Dual Port Device | Single Port Device |
127 VF per PF (254 functions) | 127 |
VF Network Function Limitations in Switchdev Mode
Dual Port Device | Single Port Device |
127 VF per PF (254 functions) | 127 |
VF+SF Network Function Limitations in Switchdev Mode
Dual Port Device | Single Port Device |
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Internal Ref. | Issue |
4030457 | Description: This release does not support InfiniBand (IB) over Windows OS when using ConnectX-7 MCX75310AAS-NEAT and MCX75310AAC-NEAT OPNs. |
Workaround: N/A | |
Keywords: InfiniBand, Windows | |
Detected in version: 28.42.1000 | |
2169950 | Description: When decapsulation on a packet occurs, the FCS indication is not calculated correctly. |
Workaround: N/A | |
Keywords: FCS | |
Discovered in Version: 28.42.1000 | |
- | Description: Downgrading the following adapter cards (MCX713104AS-ADAT & MCX713104AC-ADAT) to a lower version than 20.39.2048 is not supported. |
Workaround: N/A | |
Keywords: Downgrade | |
Discovered in Version: 28.40.1000 | |
3728450 | Description: SW_RESET with a pending image is currently not supported. |
Workaround: N/A | |
Keywords: SW_RESET | |
Discovered in Version: 28.40.1000 | |
3735988 | Description: In IB system, RTT_response_sl feature does not work with Sniffer tools (e.g., Wireshark/Tcpdump/). |
Workaround: N/A | |
Keywords: Health buffer, sniffer, RTT | |
Discovered in Version: 28.40.1000 | |
3614362 | Description: When connected to a Spectrum-1 switch system using NRZ 25G optic module supporting DME in NO FEC, an EFF BER of -13 may be seen once in 200 toggles. |
Workaround: To raise the link, re-toggle the port. | |
Keywords: Spectrum-1, NRZ, BER, port toggling | |
Discovered in Version: 28.39.1002 | |
3629216 | Description: mlxfwreset level 3 command is not supported for MCX750500B-0D00 / MCX750500B-0D0K / MCX755206AS-NEAT-N P/N. |
Workaround:
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Keywords: mlxfwreset level 3 | |
Discovered in Version: 28.39.1002 | |
- | Description: The I2C clock fall time is lower than the 12ns minimum defined in the I2C-bus specification. For further information, refer to the I²C-bus Specification, Version 7.0, October 2021, https://www.i2c-bus.org/. |
Workaround: N/A | |
Keywords: I2C clock | |
Discovered in Version: 28.39.1002 | |
3179534 | Description: 25G/lane speeds are not supported on 200GbE optic cables. |
Workaround: N/A | |
Keywords: Cables, 200GbE | |
Discovered in Version: 28.39.1002 | |
3435259 | Description: The host enables the device to populate only 1 bus. When opening extra 2 Physical ports, moving from dual-port to quad-port, the user can open 2 less Virtual Functions. |
Workaround: N/A | |
Keywords: VF, dual-port, quad-port | |
Discovered in Version: 28.39.1002 | |
3525865 | Description: Unexpected system behavior might be observed if the driver is loaded while reset is in progress. |
Workaround: N/A | |
Keywords: Sync 1 reset, firmware reset | |
Discovered in Version: 28.39.1002 | |
3363753 | Description: The link is down when connected to the MMS1V00-WM (DR4) optical module. |
Workaround: N/A | |
Keywords: 400G, link down | |
Discovered in Version: 28.38.1002 | |
3439438 | Description: When connecting to a High Speed Traffic Generator in 400G speed, the linkup time may takes up to 3 minutes. |
Workaround: N/A | |
Keywords: 400G, linkup time | |
Discovered in Version: 28.38.1002 | |
- | Description: When upgrading from firmware v28.35.2000 to a newer one, the default port speeds of adapter cards MCX755106AS-HEAT/ MCX755106AC-HEAT will change from InfiniBand to Ethernet. |
Workaround: To change it back to InfiniBand, please follow the instructions in the ConnectX-7 hardware User Manual. | |
Keywords: Firmware upgrade, port type, MCX755106AS-HEAT/ MCX755106AC-HEAT | |
Discovered in Version: 28.37.1014 | |
3376224 | Description: FEC override is not supported when working with NRZ speeds on PAM4 Optical modules. |
Workaround: N/A | |
Keywords: FEC override, NRZ, PAM4 | |
Discovered in Version: 28.37.1014 | |
3262845 | Description: In the ConnectX-7 adapter card with P/N MCX750500B-0D0K, t he "Fatal Error Reporting Enable" bit controls both the fatal and the non-fatal ERR MSG forwarding. The "Non-Fatal Error Reporting Enable" bit does not affect the ERR MSG forwarding. |
Workaround: N/A | |
Keywords: Fatal Error Reporting Enable" bit, PCIe, MCX750500B-0D0K | |
Discovered in Version: 28.36.1010 | |
3329109 | Description: MFS1S50-H003E cable supports only HDR rate when used as a split cable. |
Workaround: N/A | |
Keywords: HDR, split cable, MFS1S50-H003E | |
Discovered in Version: 28.36.1010 | |
2844036 | Description: When using the "Dual Write" feature with QP buffer bigger than the maximum outstanding WQEs (128), the data being sent on the standby QP can be corrupted. |
Workaround: Limit the QP buffer size when using "Dual Write" up to 128 WQEs. | |
Keywords: Dual-write, QP | |
Discovered in Version: 28.36.1010 | |
3178339 | Description: PCIe PML1 is disabled. |
Workaround: N/A | |
Keywords: PCIe PML1 | |
Discovered in Version: 28.35.1012 | |
3033910 | Description: BAR misses caused by a memory write/read actions are not reported in the AER and the device status. |
Workaround: N/A | |
Keywords: BAR miss, AER | |
Discovered in Version: 28.34.4000 | |
3140645 | Description: 3rd party servers may hang after warm reboot due to the PCIe switch. |
Workaround: N/A | |
Keywords: PCIe, 3rd party servers | |
Discovered in Version: 28.34.4000 | |
- | Description: Changing dynamic PCIe link width is not supported. |
Workaround: N/A | |
Keywords: PCIe | |
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 | |
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 | |
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 | |
- | 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:
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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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