Public bug reported:

SRU Justification

[Impact]

* Microsoft requested backport of patch to cache relevant MANA config
information rather than performing more expensive calls to query the
hardware directly.

[Fix]

* Clean cherry-pick of 8e0ffcc926f4: "net: mana: Cache
MANA_QUERY_LINK_CONFIG result to avoid repeated HWC queries"

[Test Plan]

* Compile tested
* Microsoft to test further

[Regression potential]

* Patches isolated to MANA specifically. Possibly regression could
result in unexpected behavior of MANA driver.

[Other info]

* SF#00441033

** Affects: linux-azure (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-azure (Ubuntu Resolute)
     Importance: Undecided
         Status: New

** Also affects: linux-azure (Ubuntu Resolute)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2168373

Title:
  [MANA] net: mana: Cache MANA_QUERY_LINK_CONFIG result to avoid
  repeated HWC queries

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