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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282140 --- Comment #5 from Hiroshi Nishida <hnishida@thelustrecollective.com> --- Comment on attachment 269399 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=269399 Fix Wake-on-LAN for Intel I226-V (igc driver) I experienced the same issue on Intel NUC 13 Pro (Arena Canyon, Core i5-1340P) with FreeBSD 14.4-RELEASE and Intel I226-V NIC. SYMPTOMS: WOL works when shutting down from BIOS, but does not work after "shutdown -p now" from FreeBSD. ifconfig shows WOL_MAGIC in options, but the machine never powers on when a magic packet is sent. ROOT CAUSE: Two issues were found in the igc driver: 1. igc_get_wakeup() never sets IGC_WUFC_MAG (magic packet bit). As a result, igc_enable_wakeup() always jumps to the pme: label without arming the NIC for magic packet wakeup, even though WOL_MAGIC appears in ifconfig output. 2. The PHY Power Management register (IGC_I225_PHPM) has DIS_100_D3, DIS_1000_D3, and DIS_2500_D3 bits set on shutdown, which disables all link speeds in D3 state and prevents the NIC from receiving magic packets. FIX: - Always set IGC_WUFC_MAG in igc_get_wakeup() - Clear DIS_100_D3, DIS_1000_D3 and DIS_2500_D3 bits in the PHPM register inside igc_enable_wakeup() I built a custom kernel with the attached patch on 14.4-RELEASE and confirmed that WOL works correctly after "shutdown -p now". -- You are receiving this mail because: You are the assignee for the bug.home | help
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