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 |
|
|
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 |
3262845 | Description: In the ConnectX-7 adapter card with P/N MCX750500B-0D0K, the "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 | |
Discovered in Version: 28.36.1010 | |
3327847 | Description: CNP received, handled, and ignored counters in the hardware counters cannot work after moving to Programmable Congestion Control mode. |
Workaround: N/A | |
Keywords: CNP, Programmable Congestion Control | |
Discovered in Version: 28.36.1010 | |
3312483 | Description: WoL packets may not working properly if sent to Unicast destination MAC. |
Workaround: N/A | |
Keywords: WoL packets, Unicast destination MAC | |
Discovered in Version: 28.36.1010 | |
3339919 | Description:
|
Workaround: To raise in Force flow, configure the speed, FEC and precoding. | |
Keywords: Link up speed | |
Discovered in Version: 28.36.1010 | |
3339818 | Description: When performing a stress toggling on a ConnectX-7 adapter card that is connected to the MMA1Z00-NS400 cable and the speed is set to 100G_1x with interleaved FEC, a long linkup time of up to 5 min may occur. |
Workaround: N/A | |
Keywords: Toggling, MMA1Z00-NS400 | |
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 | |
- | 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: 28.35.2000 | |
2348641 | Description: SFP 1G-BaseT transceivers are currently not supported. |
Workaround: N/A | |
Keywords: SFP 1G-BaseT transceivers | |
Discovered in Version: 28.35.1012 | |
3178339 | Description: PCIe PML1 is disabled. |
Workaround: N/A | |
Keywords: PCIe PML1 | |
Discovered in Version: 28.35.1012 | |
3138665 | Description: PLDM firmware update process fails in case 1304 bytes chunk size is chosen. |
Workaround: N/A | |
Keywords: PLDM firmware update | |
Discovered in Version: 28.34.4000 | |
3110297 | Description: When ConnectX-7 adapter card is configured to use the Auto-Negotiation mode, 400G_8x linkup cannot be raised. |
Workaround: Configure the adapter card to use Force mode. | |
Keywords: 400G_8x, linkup | |
Discovered in Version: 28.34.4000 | |
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 | |
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 | |
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 | |
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 | |
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:
|
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 |