[Bug 1677297] Re: [Zesty] d-i: replace msm_emac with qcom_emac

[Manoj Iyer]

I built DI and booted the netboot image on an SDP. DI works as expected
with the patch.

 ┌─────────────────────┤ [!!] Configure the network ├──────────────────────┐
  │                                                                         │
  │ Your system has multiple network interfaces. Choose the one to use as   │
  │ the primary network interface during the installation. If possible,     │
  │ the first connected network interface found has been selected.          │
  │                                                                         │
  │ Primary network interface:                                              │
  │                                                                         │
  │      enP1s1: Mellanox Technologies MT27700 Family [ConnectX-4]          │
  │      eth0: Ethernet                                                     │
  │                                                                         │
  │     <Go Back> 

~ # lsmod
Module                  Size  Used by
mlx5_ib               204800  0
ib_core               249856  1 mlx5_ib
uas                    28672  0
usb_storage            77824  1 uas
mlx5_core             479232  1 mlx5_ib
devlink                36864  1 mlx5_core
ptp                    28672  1 mlx5_core
pps_core               24576  1 ptp
ahci_platform          16384  0
libahci_platform       20480  1 ahci_platform
libahci                45056  2 ahci_platform,libahci_platform
qcom_emac              49152  0
sdhci_acpi             16384  0
sdhci                  65536  1 sdhci_acpi
xhci_plat_hcd          16384  0
~ #

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Title:
  [Zesty] d-i: replace msm_emac with qcom_emac

Status in debian-installer package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Fix Released
Status in debian-installer source package in Zesty:
  New
Status in linux source package in Zesty:
  Fix Committed

Bug description:
  [Impact]
  We landed a patch to support msm_emac module in initrd for amberwing platforms. But the upstream driver has since been renamed to qcom_emac. This module is needed in d-i's initrd so that these nics can be used to d-i install the system. The driver already exists in the zesty kernel under drivers/net/ethernet/qualcomm/emac/

  Revert commit 14893d91c9c391f8a4c2668b96ffe60aa728ad23 and add
  qcom_emac to initrd, and change the module name to qcom_emac.

  [Test Case]
  D-I install zesty on amberwing platform and notice that DI does not recognize the onboard two port nic.

  [Regression Potential]
  At present this driver applies only to amberwing systems, any regression will be isolated to amberwing platforms. The over all risk of regression is low.

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