Known Issues

2378593

Description: Sub 1sec firmware update (fast reset flow) is not supported when updating from previous releases to the current one. Doing so may cause network disconnection events.

Workaround: Use full reset flow for firmware upgrade/downgrade.

Keywords: Sub 1sec firmware update

Discovered in Version: 14.29.1016

2396506

Description: On systems with high PCIe latency (2us or above), lower bandwidth may be experienced.

Workaround: If such issue is observed:

1. Enable ZTT to overcome the high latency. Run: mlxconfig -d <mst device> set ZERO_TOUCH_TUNING_ENABLE=1

2. Reset or power cycle the firmware for change to take effect

Keywords: Performance, ZTT

Discovered in Version: 14.29.1016

2379573

Description: Low performance might be experienced when upgrading from previous firmware version to 14.29.1000 when using “Fast FW Reset”.

Workaround: N/A

Keywords: “Fast FW Reset”, performance

Discovered in Version: 14.29.1016

2213356

Description: The following are the Steering Dump limitations:

• Supported only on ConnectX-5 adapter cards

• Requires passing the version (FW/Stelib/MFT) and device type to stelib

• Re-format is not supported

• Advanced multi-port feature is not supported – LAG/ROCE_AFFILIATION/MPFS_LB/ESW_LB (only traffic vhca <-> wire)

• Packet types supported:

  • Layer 2 Eth

  • Layer 3 IPv4/Ipv6/Grh

  • Layer 4 TCP/UDP/Bth/GreV0/GreV1

  • Tunneling VXLAN/Geneve/GREv0/Mpls

• FlexParser protocols are not supported (e.g AliVxlan/VxlanGpe etc..).

• Compiles only on x86

Workaround: N/A

Keywords: Steering Bump

Discovered in Version: 14.29.1016

2301593

Description: Congestion Control may not work properly if the card supports two ports and each PF for each port is not raised at the same time.

Workaround: N/A

Keywords: Congestion Control

Discovered in Version: 14.29.1016

2245422

Description: When MKEY_BY_NAME is enabled by NVCONFIG and a large number of VFs are configured, VM restart (VF/PF FLR) will take longer than when MKEY_BY_NAME is disabled

Workaround: N/A

Keywords: SR-IOV

Discovered in Version: 14.28.1002

2071210

Description: mlxconfig query for the BOOT_INTERRUPT_DIS TLV shows a wrong value in the "current value" field.

Workaround: Use "next boot" indication to see the right value.

Keywords: mlxconfig

Discovered in Version: 14.27.1016

1919403

Description: Hardware arbitration is currently disabled in OCP3.0 cards. It will be supported on future releases for the same hardware.

Workaround: N/A

Keywords: Hardware arbitration, OCP3.0

Discovered in Version: 14.26.1040

1840289

Description: Since Packet Pacing enforce max_tc value is “1”, features that require multiple TCs will not be active when this mode is available.

Workaround: N/A

Keywords: Packet Pacing

Discovered in Version: 14.26.1040

1796628

Description: Due to performance considerations, unicast loopback traffic will go through the NIC SX tables, and multicast loopback traffic will skip the NIC SX tables.

Workaround: N/A

Keywords: Performance, unicast loopback traffic, multicast loopback traffic

Discovered in Version: 14.26.1040

1699214

Description: NODNIC VF is partially tested. It is fully tested only in ConnectX-5 adapter cards.

Workaround: N/A

Keywords: NODNIC VF

Discovered in Version: 14.25.1020

1689186

Description: Changing priority to TC map during traffic might cause packet drops.

Workaround: N/A

Keywords: QoS

Discovered in Version: 14.25.1020

1604699

Description: Ethernet RFC 2819 counter ether_stats_oversize_pkts and Ethernet IEEE 802.3 counter a_frame_too_long_errors share the same resource. Clearing each of them will affect the other.

Workaround: N/A

Keywords: Counters

Discovered in Version: 14.25.1020

-

Description: In Ethernet mode, at 10/40GbE speeds, only NO-FEC in Force mode is supported. Other user configurations are overridden.

Workaround: N/A

Keywords: Ethernet, 10GbE, 40GbE, RS-FEC

Discovered in Version: 14.25.1020

1498399

Description: If the XRC switches between SRQ/RMPs while there is an outstanding ODP on the responder XRC QP, a CQE with an error might be generated (that is not a PFAULT abort).

Workaround: N/A

Keywords: XRC SRQ/RMP ODP

Discovered in Version: 14.25.1020

1426283

Description: An mlxconfig configuration followed by the init 0 command might cause the HCA to remain in high power instead of entering the standby state. Such behavior will require a server reboot after running the mlxconfig tool.

Workaround: N/A

Keywords: mlxconfig

Discovered in Version: 14.24.1000

1546401

Description: vport_tc and para_vport_tc are not supported in this version.

Workaround: N/A

Keywords: SR-IOV vport_tc and para_vport_tc

Discovered in Version: 14.24.1000

1566930

Description: In case a faulty cable is inserted, (either power issue or I2C error), the traffic LED is turned OFF although it is expected to be ON. and the amber LED is blinking as expected.

Workaround: N/A

Keywords: Cables

Discovered in Version: 14.24.1000

1546492

Description: Executing the update_lid command while the IB port sniffer utility is active can stop the utility.

Workaround: N/A

Keywords: IB Sniffer

Discovered in Version: 14.24.1000

1537898

Description: Initializing a function while the IB port sniffer utility is active can stop the utility.

Workaround: N/A

Keywords: IB Sniffer

Discovered in Version: 14.24.1000

1332714/1345824

Description: The maximum “read” size of MTRC_STDB is limited to 272 Bytes.

Workaround: Set the MTRC_STDB.read_size to the maximum value of 0x110=272 Bytes

Keywords: Access register, MTRC_STDB, tracer to dmesg, fwtrace to dmesg

Discovered in Version: 14.23.1020

1408994

Description: FTE with both forward (FWD) and encapsulation (ENCAP) actions is not supported in the SX NIC Flow Table.

Workaround: N/A

Keywords: SX NIC Flow Table

Discovered in Version: 14.23.1020

1350794

Description: Encapsulation / Decapsulation support in steering has the following limitations:

• Encapsulation / Decapsulation can be open on the FDB only if all VFs are non active.

• Encapsulation / Decapsulation supports single mode only: FDB / NIC. Opening tables of both types is not supported.

• RoCE is supported only when no Encapsulation / Decapsulation is opened on the FDB.

• Encapsulation / Decapsulation per device support:

  

Workaround: N/A

Keywords: Steering Encapsulation / Decapsulation

Discovered in Version: 14.23.1020

1027553

Description: While using e-switch vport sVLAN stripping, the RX steering values on the sVLAN might not be accurate.

Workaround: N/A

Keywords: e-sw vport sVLAN stripping, RX steering

Discovered in Version: 14.24.1000

1799917

Description: Untagged CVLAN packets in the Steering Flow Tables do not match the SVLAN tagged packets.

Workaround: N/A

Keywords: Steering Flow Tables, CVLAN/SVLAN packets

Discovered in Version: 14.23.1020

1355883

Description: Running the QUERY_VPORT_COUNTER command with clear bit results in discard counters being reset.

Workaround: N/A

Keywords: Discard counters

Discovered in Version: 14.22.1002

1277762

Description: An Ethernet multicast loopback packet is not counted (even if it is not a local loopback packet) when running the nic_receive_steering_discard command.

Workaround: N/A

Keywords: Ethernet multicast loopback packet

Discovered in Version: 14.22.1002

1047184

Description: RDMA resq_local_length_error and resp_remote_invalid_request

counters do not function properly.

Workaround: N/A

Keywords: RDMA counters

Discovered in Version: 14.21.1000

1168594

Description: RoCE Dual Port Mode (a.k.a Multi-Port vHCA: MPV) is not supported in Multi-Host setups.

Workaround: N/A

Keywords: Multi-Port vHCA, Multi-Host

Discovered in Version: 14.21.1000