I have a CX456A (HP OEM) flashed to Mellonox stock FW. It's in a PCIe 3 x16 slot. lshw shows 56 Gb/s on each port. Is that normal?
Code:
# lspci -vv | grep -i mellanox
lspci: Unable to load libkmod resources: error -12
04:00.0 Ethernet controller: Mellanox Technologies MT27700 Family [ConnectX-4]
Subsystem: Mellanox Technologies MT27700 Family [ConnectX-4]
04:00.1 Ethernet controller: Mellanox Technologies MT27700 Family [ConnectX-4]
Subsystem: Mellanox Technologies MT27700 Family [ConnectX-4]
# lshw -c network
*-network:0
description: Ethernet interface
product: MT27700 Family [ConnectX-4]
vendor: Mellanox Technologies
physical id: 0
bus info: pci@0000:04:00.0
logical name: ens4f0np0
version: 00
serial: 04:09:73:dc:12:44
capacity: 56Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pciexpress vpd msix pm bus_master cap_list ethernet physical 1000bt-fd 10000bt-fd 25000bt-fd 40000bt-fd 56000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=5.3-1.0.0 firmware=12.28.2006 (MT_2190110032) latency=0 link=no multicast=yes
resources: iomemory:33f0-33ef irq:24 memory:33ffc000000-33ffdffffff
*-network:1
description: Ethernet interface
product: MT27700 Family [ConnectX-4]
vendor: Mellanox Technologies
physical id: 0.1
bus info: pci@0000:04:00.1
logical name: ens4f1np1
version: 00
serial: 04:09:73:dc:12:45
capacity: 56Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pciexpress vpd msix pm bus_master cap_list ethernet physical 1000bt-fd 10000bt-fd 25000bt-fd 40000bt-fd 56000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=5.3-1.0.0 firmware=12.28.2006 (MT_2190110032) latency=0 link=no multicast=yes
resources: iomemory:33f0-33ef irq:46 memory:33ffa000000-33ffbffffff
*-network
description: Ethernet interface
product: Ethernet Connection I217-LM
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: enp0s25
version: 05
serial: 50:9a:4c:52:55:06
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.13-4 ip=10.16.32.174 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:40 memory:f7f00000-f7f1ffff memory:f7f32000-f7f32fff ioport:f000(size=32)
# ibdev2netdev -v
0000:04:00.0 mlx5_0 (MT4115 - CN781305DRV0) HPE InfiniBand EDR/Ethernet 100Gb 2-port 840QSFP28 Adapter fw 12.28.2006 port 1 (DOWN ) ==> ens4f0np0 (Down)
0000:04:00.1 mlx5_1 (MT4115 - CN781305DRV0) HPE InfiniBand EDR/Ethernet 100Gb 2-port 840QSFP28 Adapter fw 12.28.2006 port 1 (DOWN ) ==> ens4f1np1 (Down)