MT27710 (ConnectX-4 Lx) connection troubleshoot

Background:

MB: Supermicro X10DRi

SW: 2x Supermicro SSE-F3548R (MLAG - UP and running)

Cables: 1x Mellanox MCP2M00-A003E30L and 1x FS S28-PC025

OS: Ubuntu 18.04

Problem:

For my perspective everything seems to be fine and all interfaces are UP but no connection.

Host have also other separate 1G port (connected on separate SW) which is alright…after netplan apply bond and everything seems to be UP…pinging 25GB network card but it seems somehow throught 1G port becasue i can’t ping from 25GB SW.

After reboot still everything is UP but no connection either to separate 1G port :D

What could be wrong ?

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lspci | grep -i Mellanox

81:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]

81:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]

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mst status:

MST modules:


MST PCI module is not loaded

MST PCI configuration module loaded

MST devices:


/dev/mst/mt4117_pciconf0 - PCI configuration cycles access.

domain:bus:dev.fn=0000:81:00.0 addr.reg=88 data.reg=92 cr_bar.gw_offset=-1

Chip revision is: 00

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ibstat:

CA ‘mlx5_bond_0’

CA type: MT4117

Number of ports: 1

Firmware version: 14.29.2002

Hardware version: 0

Node GUID: 0x0c42a10300ba8d6e

System image GUID: 0x0c42a10300ba8d6e

Port 1:

State: Active

Physical state: LinkUp

Rate: 25

Base lid: 0

LMC: 0

SM lid: 0

Capability mask: 0x04010000

Port GUID: 0xf06504fffe689d2d

Link layer: Ethernet

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lshw -class network

*-network:0

description: Ethernet interface

product: MT27710 Family [ConnectX-4 Lx]

vendor: Mellanox Technologies

physical id: 0

bus info: pci@0000:81:00.0

logical name: ens5f0

version: 00

serial: f2:65:04:68:9d:2d

width: 64 bits

clock: 33MHz

capabilities: pciexpress vpd msix pm bus_master cap_list rom ethernet physical autonegotiation

configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=5.0-0 duplex=full firmware=14.29.2002 (MT_2420110034) latency=0 link=yes multicast=yes slave=yes

resources: irq:24 memory:c8000000-c9ffffff memory:fbe00000-fbefffff memory:cc000000-cc7fffff

*-network:1

description: Ethernet interface

product: MT27710 Family [ConnectX-4 Lx]

vendor: Mellanox Technologies

physical id: 0.1

bus info: pci@0000:81:00.1

logical name: ens5f1

version: 00

serial: f2:65:04:68:9d:2d

width: 64 bits

clock: 33MHz

capabilities: pciexpress vpd msix pm bus_master cap_list rom ethernet physical autonegotiation

configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=5.0-0 duplex=full firmware=14.29.2002 (MT_2420110034) latency=0 link=yes multicast=yes slave=yes

resources: irq:111 memory:ca000000-cbffffff memory:fbd00000-fbdfffff memory:cc800000-ccffffff

*-network

description: Ethernet interface

physical id: 3

logical name: bond-lan

serial: f2:65:04:68:9d:2d

capabilities: ethernet physical

configuration: autonegotiation=off broadcast=yes driver=bonding driverversion=3.7.1 duplex=full firmware=2 ip=10.20.32.199 link=yes master=yes multicast=yes

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ip a:

4: ens5f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond-lan state UP group default qlen 1000

link/ether f2:65:04:68:9d:2d brd ff:ff:ff:ff:ff:ff

5: ens5f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond-lan state UP group default qlen 1000

link/ether f2:65:04:68:9d:2d brd ff:ff:ff:ff:ff:ff

6: bond-lan: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000

link/ether f2:65:04:68:9d:2d brd ff:ff:ff:ff:ff:ff

inet 10.20.32.199/24 brd 10.20.32.255 scope global bond-lan

valid_lft forever preferred_lft forever

inet6 fe80::f065:4ff:fe68:9d2d/64 scope link tentative

valid_lft forever preferred_lft forever

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SW ports are in 25GB, full-duplex

SMIS# sh interface port-channel 3

po3 up, line protocol is up (connected)

Bridge Port Type: Customer Bridge Port

Hardware Address is 0c:c4:7a:2c:d0:c5

MTU 1500 bytes,

LACP Port Admin Oper Port Port

Port State Priority Key Key Number State


Fx0/3 Bundle 128 3 3 0x3 0x3d

Reception Counters

Octets : 890

Unicast Packets : 0

Unicast Packets Rate : 0/Sec

Broadcast Packets : 0

Broadcast Packets Rate : 0/Sec

Multicast Packets : 9

Multicast Packets Rate : 0/Sec

Pause Frames : 0

Undersize Frames : 0

Oversize Frames : 0

CRC Error Frames : 0

Discarded Packets : 0

Error Packets : 0

Unknown Protocol : 0

Received Rate : 0 bps

Transmission Counters

Octets : 635

Unicast Packets : 0

Unicast Packets Rate : 0/Sec

Broadcast Packets : 0

Broadcast Packets Rate : 0/Sec

Multicast Packets : 5

Multicast Packets Rate : 0/Sec

Pause Frames : 0

Discarded Packets : 0

Error Packets : 0

Transmit Rate : 492 bps

Hello Simon,

Thank you for posting your inquiry to the Mellanox community.

Unfortunately, the FS S28-PC025 is not a supported cable for the ConnectX-4 LX:

https://docs.mellanox.com/display/ConnectX4LxFirmwarev14292002/Firmware+Compatible+Products

Best regards,

Mellanox Technical Support