Thunderbolt 3 NIC driver is loaded too early and won't establish connection

[Sebastian Heiden]

I am using a Thunderbolt 3 Pro Dock with a built in Aquantia 10 GBase-T NIC (atlantic).

The issue is that during boot it only detects the interface as 5 GBe, as seen in dmesg:
enp11s0: atlantic: link change old 0 new 5000

This prevents the interface from establishing a connection. With Ubuntu 21.04 and previous versions this issue didn't exist.

I found a couple workarounds for this problem:
1. Enable Thunderbolt Security (User Authorization or Secure Connect) in the BIOS. This prevents the computer from suspending however, so this workaround isn't feasible.
2. Run sudo rmmod atlantic && modprobe atlantic and the NIC will connect at 10 GBe without issues as seen below:
atlantic 0000:0b:00.0 enp11s0: atlantic: link change old 0 new 10000

From the obervations above, I draw the conclusion that the module gets loaded too early with Thunderbolt Security disabled and should happen at a later point in time.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: linux-image-5.13.0-20-generic 5.13.0-20.20
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: spyfly 3576 F.... pulseaudio
 /dev/snd/pcmC2D0p: spyfly 3576 F...m pulseaudio
 /dev/snd/controlC1: spyfly 3576 F.... pulseaudio
 /dev/snd/controlC0: spyfly 3576 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 4 15:47:34 2021
HibernationDevice: RESUME=none
InstallationDate: Installed on 2021-10-19 (15 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Daily amd64 (20211006)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_qbynho@/vmlinuz-5.13.0-20-generic root=ZFS=rpool/ROOT/ubuntu_qbynho ro quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-5.13.0-20-generic N/A
 linux-backports-modules-5.13.0-20-generic N/A
 linux-firmware 1.201.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/11/2021
dmi.bios.release: 5.17
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P3.20
dmi.board.name: X570 Phantom Gaming-ITX/TB3
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.20:bd08/11/2021:br5.17:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.:rvnASRock:rnX570PhantomGaming-ITX/TB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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