[Bug 2079017] Re: Need driver support for Realtek RTL8126A rev.b 5Gbps ethernet [10ec:8126]

SRU:
* https://kernel.ubuntu.com/gitea/kernel/noble-linux-oem/pulls/43 (oem-6.11)
* https://lists.ubuntu.com/archives/kernel-team/2024-October/154546.html (linux/oracular)
* https://kernel.ubuntu.com/gitea/kernel/linux-firmware/pulls/72 (linux-firmware/noble)

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Title:
Need driver support for Realtek RTL8126A rev.b 5Gbps ethernet
[10ec:8126]

Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-firmware package in Ubuntu:
Fix Released
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Won't Fix
Status in linux-firmware source package in Noble:
In Progress
Status in linux-oem-6.11 source package in Noble:
In Progress
Status in linux source package in Oracular:
In Progress
Status in linux-firmware source package in Oracular:
Fix Released
Status in linux-oem-6.11 source package in Oracular:
Invalid

Bug description:
[SRU Justification]

[Impact]

Need driver support for Realtek RTL8126A rev.b 5Gbps ethernet.

  $ lspci -vvnn
  ...
  81:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. Device [10ec:8126] (rev 01)
          Subsystem: Dell Device [1028:0d09]

[Fix]

* kernel:
  - v6.12-rc1 commit 69cb89981c7a ("r8169: add support for RTL8126A rev.b").
* firmware:
  - commit d75c2bd6f ("rtl_nic: add firmware rtl8126a-3")

[Test Case]

Ethernet link up and available.

  $ dmesg
  ...
  r8169 0000:81:00.0: can't disable ASPM; OS doesn't have ASPM control
  r8169 0000:81:00.0 eth0: RTL8126A, d0:46:0c:93:eb:e2, XID 64a, IRQ 139
  r8169 0000:81:00.0 eth0: jumbo features [frames: 9194 bytes, tx checksumming: ko]
  r8169 0000:81:00.0 enp129s0: renamed from eth0
  RTL8251B 5Gbps PHY r8169-0-8100:00: attached PHY driver (mii_bus:phy_addr=r8169-0-8100:00, irq=MAC)
  r8169 0000:81:00.0 enp129s0: Link is Up

[Where problems could occur]

New device. Expect further updates.

[Other Info]

Targets v6.11+ kernels. Nominate for linux/o, oem-6.11/n, linux-
firmware/n.

========== original bug report ==========

Proposed fixes:
* kernel: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=69cb89981c7a181d857b634c0740e914d5df79ea (v6.12-rc1)
* linux-firmware:
- https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=973a17c006aab5944e246ce5c82af5b277598abe (upstream tag 20240220, in noble/oracular)
- https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=d75c2bd6f2c911cb338ded1c113d35508322bfe0 (upstream tag 20240909, in oracular)
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/seq: ubuntu 1895 F.... pipewire
 /dev/snd/controlC0: ubuntu 1899 F.... wireplumber
 /dev/snd/controlC1: ubuntu 1899 F.... wireplumber
CasperMD5CheckMismatches: ./casper/initrd ./casper/vmlinuz ./casper/minimal.standard.live.hotfix.manifest ./casper/minimal.standard.live.hotfix.size ./casper/minimal.standard.live.size ./casper/minimal.manifest ./casper/minimal.standard.manifest ./casper/minimal.standard.size ./casper/minimal.hotfix.size ./casper/minimal.standard.live.hotfix.squashfs ./casper/minimal.standard.hotfix.squashfs ./casper/minimal.standard.hotfix.size ./casper/minimal.hotfix.squashfs ./casper/minimal.standard.live.manifest ./casper/minimal.size ./boot/grub/grub.cfg
CasperMD5CheckResult: fail
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for Ubuntu 24.04 for Dell
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-noble-oem-24.04b-edge-20240920-103
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2024-10-01 (14 days ago)
InstallationMedia: Ubuntu OEM 24.04.1 LTS "Noble Numbat" - Release amd64 (20240919)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 0458:0137 KYE Systems Corp. (Mouse Systems) USB Optical Mouse
 Bus 001 Device 003: ID 04ca:004b Lite-On Technology Corp. Keyboard
 Bus 001 Device 004: ID 8087:0033 Intel Corp. AX211 Bluetooth
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Dell Inc. Dell Pro Tower Q1T1250
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-9005-oem root=UUID=2cfecc2f-88c9-4469-a7f3-2c4ea8369553 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 6.11.0-9005.5+exp.12-oem 6.11.0-rc7
RelatedPackageVersions:
 linux-restricted-modules-6.11.0-9005-oem N/A
 linux-backports-modules-6.11.0-9005-oem N/A
 linux-firmware 20240318.git3b128b60-0ubuntu2.4+exp.19
Tags: noble
Uname: Linux 6.11.0-9005-oem x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 09/19/2024
dmi.bios.release: 0.5
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 0.5.20
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 0.0
dmi.modalias: dmi:bvnDellInc.:bvr0.5.20:bd09/19/2024:br0.5:efr0.0:svnDellInc.:pnDellProTowerQ1T1250:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct3:cvr:sku0CFF:
dmi.product.family: Dell Pro Desktops
dmi.product.name: Dell Pro Tower Q1T1250
dmi.product.sku: 0CFF
dmi.sys.vendor: Dell Inc.

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