Driver not loading on host:

Infrastructure & Networking BlueField
1

Hi, my setup was running just fine last week, then I came this morning to find that the drivers are not loading on the host side.
my other Realtek ethernet was named enp20s*, the name automatically changed to enp3s*.
I have done no configuration changes in between as this happened during the weekend, most probably due to some update.

$ sudo dmesg | grep mlx
[    0.776683] mlx_compat: loading out-of-tree module taints kernel.
[    0.776764] mlx_compat: loading out-of-tree module taints kernel.
[    0.777613] mlx_compat: module verification failed: signature and/or required key missing - tainting kernel
[    0.898249] mlx5_core 0000:01:00.0: Missing registers BAR, aborting
[    0.898252] mlx5_core 0000:01:00.0: mlx5_pci_init:1117:(pid 202): error requesting BARs, aborting
[    0.898592] mlx5_core 0000:01:00.0: probe_one:2124:(pid 202): mlx5_pci_init failed with error code -19
[    0.898742] mlx5_core 0000:01:00.1: Missing registers BAR, aborting
[    0.898744] mlx5_core 0000:01:00.1: mlx5_pci_init:1117:(pid 202): error requesting BARs, aborting
[    0.899164] mlx5_core 0000:01:00.1: probe_one:2124:(pid 202): mlx5_pci_init failed with error code -19


$ sudo lshw -C network
  *-network:0 UNCLAIMED     
       description: Ethernet controller
       product: MT42822 BlueField-2 integrated ConnectX-6 Dx network controller
       vendor: Mellanox Technologies
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress vpd msix pm cap_list
       configuration: latency=0
       resources: memory:df200000-df2fffff
  *-network:1 UNCLAIMED
       description: Ethernet controller
       product: MT42822 BlueField-2 integrated ConnectX-6 Dx network controller
       vendor: Mellanox Technologies
       physical id: 0.1
       bus info: pci@0000:01:00.1
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress vpd msix pm cap_list
       configuration: latency=0
       resources: memory:df300000-df3fffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: 11
       serial: 38:2c:4a:ba:6f:51
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=10.30.2.148 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:18 ioport:e000(size=256) memory:f7b00000-f7b00fff memory:df500000-df503fff
  *-network
       description: Ethernet interface
       physical id: 2
       logical name: tmfifo_net0
       serial: 00:1a:ca:ff:ff:02
       size: 10Mbit/s
       capabilities: ethernet physical
       configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full ip=192.168.100.1 link=yes multicast=yes port=twisted pair speed=10Mbit/s

I tried uninstalling and reinstalling everything from scratch but that didn’t solve my problems.
any help or inspiration would be much appreciated.
thanks

2

resetting the BIOS settings seems to have solved the problem.

3

Seems you enable scure boot on BIOS. That will prevent unsign kernel module load.

fyi,

https://docs.nvidia.com/networking/display/OFEDv501000/UEFI+Secure+Boot

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