I've never used a complex setup like this, so I have to ask, are we sure
it's kernel bug?

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https://bugs.launchpad.net/bugs/1860724

Title:
  QLogic Direct-Connect host can't discover SCSI-FC or NVMe/FC devices

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  My QLogic direct-connect host can't seem to SANboot or see any SCSI-FC
  devices in general. I'm also not able to discover any NVMe devices.
  I'm running with Ubuntu 20.04 kernel-5.4.0-9-generic.

  There are the HBAs I'm running with:

  root@ICTM1610S01H4:~# cat /sys/class/fc_host/host*/symbolic_name
  QLE2742 FW:v8.08.231 DVR:v10.01.00.19-k
  QLE2742 FW:v8.08.231 DVR:v10.01.00.19-k
  QLE2692 FW:v8.08.231 DVR:v10.01.00.19-k
  QLE2692 FW:v8.08.231 DVR:v10.01.00.19-k

  lsscsi and multipath -ll don't seem to see my SCSI devices:

  root@ICTM1610S01H4:/opt/iop/linux/scratch# multipath -ll
  root@ICTM1610S01H4:/opt/iop/linux/scratch# lsscsi
  [0:0:0:0]    cd/dvd  KVM      vmDisk-CD        0.01  /dev/sr0
  [1:0:0:0]    cd/dvd  HL-DT-ST DVDRAM GUD0N     PF02  /dev/sr1
  [3:0:0:0]    disk    ATA      ST1000NX0313     SNA3  /dev/sda

  It doesn't appear to be a configuration/hardware issue as installing
  Ubuntu 18.04 on the same exact server is able to SANboot and see my
  SCSI devices.

  root@ICTM1610S01H4:/opt/iop/linux/scratch# lsb_release -rd
  Description:    Ubuntu Focal Fossa (development branch)
  Release:        20.04
  root@ICTM1610S01H4:/opt/iop/linux/scratch# apt-cache policy 
linux-image-generic
  linux-image-generic:
    Installed: 5.4.0.9.11
    Candidate: 5.4.0.9.11
    Version table:
   *** 5.4.0.9.11 500
          500 http://repomirror-ict.eng.netapp.com/ubuntu focal/main amd64 
Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-generic 5.4.0.9.11
  ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3
  Uname: Linux 5.4.0-9-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jan 23 11:32 seq
   crw-rw---- 1 root audio 116, 33 Jan 23 11:32 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.11-0ubuntu15
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 
'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Thu Jan 23 15:04:42 2020
  InstallationDate: Installed on 2020-01-23 (0 days ago)
  InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Alpha amd64 
(20200107)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  MachineType: FUJITSU PRIMERGY RX2540 M4
  PciMultimedia:

  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 mgag200drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-9-generic 
root=UUID=9b9e6b1a-b8d9-4d9c-8782-36729d7f88a4 ro console=tty0 
console=ttyS0,115200n8
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-9-generic N/A
   linux-backports-modules-5.4.0-9-generic  N/A
   linux-firmware                           1.184
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/25/2019
  dmi.bios.vendor: FUJITSU // American Megatrends Inc.
  dmi.bios.version: V5.0.0.12 R1.35.0 for D3384-A1x
  dmi.board.name: D3384-A1
  dmi.board.vendor: FUJITSU
  dmi.board.version: S26361-D3384-A13 WGS04 GS04
  dmi.chassis.asset.tag: System Asset Tag
  dmi.chassis.type: 23
  dmi.chassis.vendor: FUJITSU
  dmi.chassis.version: RX2540M4R4
  dmi.modalias: 
dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV5.0.0.12R1.35.0forD3384-A1x:bd06/25/2019:svnFUJITSU:pnPRIMERGYRX2540M4:pvr:rvnFUJITSU:rnD3384-A1:rvrS26361-D3384-A13WGS04GS04:cvnFUJITSU:ct23:cvrRX2540M4R4:
  dmi.product.family: SERVER
  dmi.product.name: PRIMERGY RX2540 M4
  dmi.product.sku: S26361-K1567-Vxxx
  dmi.sys.vendor: FUJITSU

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