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** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: bionic

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https://bugs.launchpad.net/bugs/1892347

Title:
  HiSilicon HNS3 ethernet broken

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]
  The TM210 (verified) and TM280 (probably) driver hns3 is broken in Ubuntu 
18.04.5 LTS kernel 4.15.0-112-generic. Server Huawei TM200-2280 with Kunpeng920 
SOCs. Huawei provides binary distributed driver 
NIC-hisi_eth-Ubuntu18.04.1-hns3-1.0.2-aarch64.deb but it is only for kernel 
4.15.0-29-generic. 

  root@n012:~# uname -ar
  Linux n012 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:42:54 UTC 2020 
aarch64 aarch64 aarch64 GNU/Linux

  root@n012:~# lsb_release -a
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 18.04.5 LTS
  Release:      18.04
  Codename:     bionic

  root@n012:~# dmesg |grep hns3
  [    3.775711] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - 
version
  [    3.789796] hns3: Copyright (c) 2017 Huawei Corporation.
  [    4.295868] hns3 0000:7d:00.0: The firmware version is 01092806
  [    4.395325] hns3 0000:7d:00.0 eth0: No phy led trigger registered for 
speed(-1)
  [    4.498584] hns3 0000:7d:00.1: The firmware version is 01092806
  [    4.634770] hns3 0000:7d:00.1 eth1: No phy led trigger registered for 
speed(-1)
  [    4.671546] hns3 0000:7d:00.2: The firmware version is 01092806
  [    4.791311] hns3 0000:7d:00.2 eth2: No phy led trigger registered for 
speed(-1)
  [    4.813538] hns3 0000:7d:00.3: The firmware version is 01092806
  [    4.915305] hns3 0000:7d:00.3 eth3: No phy led trigger registered for 
speed(-1)
  [    4.937256] hns3 0000:bd:00.0: The firmware version is 01092806
  [    4.994060] hns3 0000:bd:00.1: The firmware version is 01092806
  [    5.049951] hns3 0000:bd:00.2: The firmware version is 01092806
  [    5.107165] hns3 0000:bd:00.3: The firmware version is 01092806
  [    5.159285] hns3 0000:7d:00.0 enp125s0f0: renamed from eth0
  [    5.379348] hns3 0000:bd:00.2 enp189s0f2: renamed from eth6
  [    5.435880] hns3 0000:bd:00.1 enp189s0f1: renamed from eth5
  [    5.903915] hns3 0000:7d:00.3 enp125s0f3: renamed from eth3
  [    5.999350] hns3 0000:7d:00.1 enp125s0f1: renamed from eth1
  [    6.155353] hns3 0000:7d:00.2 enp125s0f2: renamed from eth2
  [    6.295332] hns3 0000:bd:00.0 enp189s0f0: renamed from eth4
  [    6.443835] hns3 0000:bd:00.3 enp189s0f3: renamed from eth7
  [   18.031167] hns3 0000:7d:00.0 enp125s0f0: link up
  [77661.965968] beegfs: enabling unsafe global rkey
  [79999.642438] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [79999.642466] hns3 0000:7d:00.0: PF Reset requested
  [79999.642491] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.650298] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [79999.650315] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.654571] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [79999.654588] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.658807] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [79999.689650] hns3 0000:7d:00.0 enp125s0f0: link down
  [79999.797516] hns3 0000:7d:00.0: prepare wait ok
  [79999.908488] hns3 0000:7d:00.0: The firmware version is 01092806
  [79999.915807] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [79999.945923] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [79999.945976] hns3 0000:7d:00.0: PF Reset requested
  [79999.946065] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.950200] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [79999.950218] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.954274] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [79999.954292] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [79999.958067] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [80000.093493] hns3 0000:7d:00.0: prepare wait ok
  [80000.203854] hns3 0000:7d:00.0: The firmware version is 01092806
  [80000.210947] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [80001.269514] hns3 0000:7d:00.0 enp125s0f0: link up
  [80001.269832] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [80001.269858] hns3 0000:7d:00.0: PF Reset requested
  [80001.269881] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80001.273380] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [80001.273401] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80001.276876] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [80001.276902] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80001.280295] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [80001.305621] hns3 0000:7d:00.0 enp125s0f0: link down
  [80001.413473] hns3 0000:7d:00.0: prepare wait ok
  [80001.523836] hns3 0000:7d:00.0: The firmware version is 01092806
  [80001.530925] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [80002.581453] hns3 0000:7d:00.0 enp125s0f0: link up
  [80002.869622] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [80002.869649] hns3 0000:7d:00.0: PF Reset requested
  [80002.869688] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80002.872958] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [80002.872980] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80002.876161] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [80002.876187] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80002.879278] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [80002.905600] hns3 0000:7d:00.0 enp125s0f0: link down
  [80003.013444] hns3 0000:7d:00.0: prepare wait ok
  [80003.123765] hns3 0000:7d:00.0: The firmware version is 01092806
  [80003.131051] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [80004.181481] hns3 0000:7d:00.0 enp125s0f0: link up
  [80006.229759] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [80006.229785] hns3 0000:7d:00.0: PF Reset requested
  [80006.229808] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80006.232868] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [80006.232889] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80006.235955] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [80006.235980] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80006.238986] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [80006.265515] hns3 0000:7d:00.0 enp125s0f0: link down
  [80006.373383] hns3 0000:7d:00.0: prepare wait ok
  [80006.483732] hns3 0000:7d:00.0: The firmware version is 01092806
  [80006.490824] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [80007.541401] hns3 0000:7d:00.0 enp125s0f0: link up
  [80013.141464] hns3 0000:7d:00.0: PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found 
[error status=0x1]
  [80013.141489] hns3 0000:7d:00.0: PF Reset requested
  [80013.141528] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80013.144375] hns3 0000:7d:00.0: inform reset to vf(1) failed -5!
  [80013.144396] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80013.147296] hns3 0000:7d:00.0: inform reset to vf(2) failed -5!
  [80013.147319] hns3 0000:7d:00.0: PF failed(=-5) to send mailbox message to VF
  [80013.150041] hns3 0000:7d:00.0: inform reset to vf(3) failed -5!
  [80013.177392] hns3 0000:7d:00.0 enp125s0f0: link down
  [80013.285261] hns3 0000:7d:00.0: prepare wait ok
  [80013.395611] hns3 0000:7d:00.0: The firmware version is 01092806
  [80013.402701] hns3 0000:7d:00.0: Reset done, hclge driver initialization 
finished.
  [80014.453270] hns3 0000:7d:00.0 enp125s0f0: link up

  [Test Case]
  dmesg | egrep -i -e "hns3|enp125s0f0"

  [81688.574030] hns3 0000:7d:00.0 enp125s0f0: link up
  [81694.458120] hns3 0000:7d:00.0 enp125s0f0: link down
  [81695.741981] hns3 0000:7d:00.0 enp125s0f0: link up
  [81708.794075] hns3 0000:7d:00.0 enp125s0f0: link down
  [81710.077966] hns3 0000:7d:00.0 enp125s0f0: link up
  [81738.489985] hns3 0000:7d:00.0 enp125s0f0: link down
  [81743.869872] hns3 0000:7d:00.0 enp125s0f0: link up

  
  [Fix]
  Backport hns3 driver from linux-hwe linux-image-5.4.0-42-generic to 
linux-image-4.15.0-xxx-generic (Ubuntu 18.04.5LTS or later).

  [Regression Risk]
  Restricted to the hns3 driver, which is only used by certain HiSilicon SOCs.

  Other software dependencies (BeeGFS) does not currently allow us to
  upgrade to 5.x kernels.

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