** Changed in: ubuntu-z-systems
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1959542

Title:
  [22.10 FEAT] [IO2201] Independent Usage of Secondary Physical Function

Status in Ubuntu on IBM z Systems:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Title: Independent Usage of Secondary Physical Function"

  Description:
  "This feature adds the ability for a Linux running in LPAR to use the 
Physical Function (PF) associated with the second port of a ConnectX-5/6 card 
independent of that of the first port.
  Prior to this feature, if the secondary PF was attached to an LPAR without 
also attaching the primary PF, no PCI function would be visible in Linux. The 
function would instead remain
  in a hidden and disabled state. Conversely it has always been possible to use 
the primary PF without attaching the secondary PF. This existing behavior is 
confusing and needlessly
  restricts flexible usage of these powerful network cards. The new behavior of 
allowing independent usage is also in accordance with the PCI SR-IOV 
specification which explicitly
  defines the dependencies between PCI functions in the Dependency Link field 
which is still honored and for ConnectX-5/6 cards allows this independent 
usage."

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