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Draft: mlxbf_gige: Update to the latest upstream version

Luiz Capitulino requested to merge lcapitul/bf3-rhel9-kernel:bf3/rhel-posting/4-mlxbf-gige/v1 into main

JIRA: https://issues.redhat.com/browse/RHEL-21118

This MR updates the mlxbf_gige driver to the very latest upstream version
(Linus tree 99bd3cb0d12e85d5114425353552121ec8f93adc). This is needed to
support the out of band network port on the Bluefield-3 DPU. All commits
are backported from Linus tree.

NOTE: Skipped commit 660a5704603. It seems in RHEL9 kernel the mdio core
doesn't pass MII_ADDR_C45 anymore, but I'm avoiding tree wide changes in
this backport.

Basic tests only:

  • Can remove & load the module
  • Interface gets an IP
  • Can login & use ssh
  • Copied large files to & from the board

Signed-off-by: Luiz Capitulino luizcap@redhat.com

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