The module ib_ipoib does not load automatically on ubuntu server 24.04

[shangsong]

1. Fresh install Ubuntu server 24.04 on a server with mellanox card and infiniband mode
2. As the module "ib_ipoib" does not load automatically, it fail to display the port via the command "ip a". The port can display after load manually.

Please help to fix it, thanks.

[Jeff Lane  (bladernr)]

I suspect it's not necessarily related to the card model, but just in case that is relevant, could you provide the model of the mellanox card you're using?

[shangsong (shangsong2)]

The mellanox is "Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter"

[Kleber Sacilotto de Souza (kleber-souza)]

Could you please also provide a list of the loaded modules after a fresh boot? We need to understand if only the ib_ipoib module is not loading or if any additional dependency is also missing.

[shangsong (shangsong2)]

root@ll:~# modprobe -v ib_ipoib
insmod /lib/modules/6.8.0-31-generic/kernel/drivers/infiniband/core/ib_cm.ko.zst
insmod /lib/modules/6.8.0-31-generic/kernel/drivers/infiniband/ulp/ipoib/ib_ipoib.ko.zst
root@ll:~#

After probe the module manually, the port can be shown with the command 'ip a'
7: ibs2f0: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN group default qlen 256
    link/infiniband 00:00:10:69:fe:80:00:00:00:00:00:00:b8:3f:d2:03:00:3c:55:1c brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    altname ibp216s0f0
8: ibs2f1: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN group default qlen 256
    link/infiniband 00:00:11:69:fe:80:00:00:00:00:00:00:b8:3f:d2:03:00:3c:55:1d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    altname ibp216s0f1