[Bug 238411] igb(4): Wake on Lan not working with Intel I210

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238411

--- Comment #17 from Kaho Toshikazu <kaho at elam.kais.kyoto-u.ac.jp> ---
(In reply to Abraham122x from comment #16)
Yes, I think your analysis is correct. i210 flashless is always disabled WOL
at first time on booting form power off. FreeBSD igb driver picks up
the status of WOL, and the variable adapter->wol is initialized to 0.
If adapter->wol is 0, the function "em_enable_phy_wakeup" is not called,
then WOL is not enabled.

comment #9 suggests to initialize adapter->wol to E1000_WUFC_MAG instead of 0.
comment #13 suggests to rewrite adapter->wol if WOL is enabled in the flags.

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