[Bug 1719302] [NEW] Please include mlx4 and mlx5 InfiniBand modules

[Benjamin Drung]

Public bug reported:

Mellanox ConnectX architecture is:  mlx4_core is the lower level PCI
driver which register on the PCI id, and protocol specific drivers are
depended on it: mlx4_en - for Ethernet and mlx4_ib for Infiniband. NIC
could have multiple ports which can change their type dynamically. We
use the request_module() call to load the relevant protocol driver when
needed: on loading time or at port type change event.

The mlx4_core and mlx5_core modules are included in the initrd, but not
mlx4_ib and mlx5_ib. Thus the request_module() call will not find these
modules and fail load them. The mlx*_ib module loading will not be
retried.

Therefore also include mlx4_ib and mlx5_ib in the initrd to make
autoloading them work. A patch is attached to the related Debian bug
report.

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: initramfs-tools (Debian)
     Importance: Unknown
         Status: Unknown

** Bug watch added: Debian Bug tracker #871595
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871595

** Also affects: initramfs-tools (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871595
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1719302

Title:
  Please include mlx4 and mlx5 InfiniBand modules

Status in initramfs-tools package in Ubuntu:
  New
Status in initramfs-tools package in Debian:
  Unknown

Bug description:
  Mellanox ConnectX architecture is:  mlx4_core is the lower level PCI
  driver which register on the PCI id, and protocol specific drivers are
  depended on it: mlx4_en - for Ethernet and mlx4_ib for Infiniband. NIC
  could have multiple ports which can change their type dynamically. We
  use the request_module() call to load the relevant protocol driver
  when needed: on loading time or at port type change event.

  The mlx4_core and mlx5_core modules are included in the initrd, but
  not mlx4_ib and mlx5_ib. Thus the request_module() call will not find
  these modules and fail load them. The mlx*_ib module loading will not
  be retried.

  Therefore also include mlx4_ib and mlx5_ib in the initrd to make
  autoloading them work. A patch is attached to the related Debian bug
  report.

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