Public bug reported:
SRU Justification:
[Impact]
Bobcat is a new board which doesn't have an external PHY connected to
the OOB. There are no MDIO busses involved and no PHY involved. The OOB
is directly connected to the switch (MAC to MAC). SO we need to use the
linux fixed phy to be able to emulate the mdio behavior and load the
ethernet driver.
[Fix]
* Register the fixed-phy register in the case of the bobcat.
[Test Case]
* Important: For testing on the bobcat board, make sure the corresponding UEFI
image is also loaded, otherwise, the oob driver will fail to load. For other
board, it is backward compatible.
* Check if the mlxbf-gige is loaded on bobcat
* Check that it is using the fixed-phy via dmesg | grep PHY
* check that the oob interface is pingable
* check that files can be copied over via oob interface
* rmmod/modprobe
* ifconfig up/down
* reboot test
[Regression Potential]
* Redo all the OOB testing on other boards (moonraker) and make sure the
bobcat changes dont trigger any regressions.
** Affects: linux-bluefield (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2054845
Title:
mlxbf-gige: support bobcat
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