• David Ertman's avatar
    e1000e: Fix issue with link flap on 82579 · 7142a55c
    David Ertman authored
    Several customers have reported a link flap issue on 82579. The symptoms
    are random and intermittent link losses when 82579 is connected to specific
    link partners. Issue has been root caused as interoperability problem
    between 82579 and at least some Broadcom PHYs in the Energy Efficient
    Ethernet wake mechanism.
    To fix the issue, we are disabling the Phase Locked Loop shutdown in 100M
    Low Power Idle.  This solution will cause an increase of power in 100M EEE
    link. It will cost additional 28mW in this specific mode.
    Cc: Lukasz Adamczuk <lukasz.adamczuk@intel.com>
    Signed-off-by: default avatarDave Ertman <davidx.m.ertman@intel.com>
    Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
    Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
ich8lan.h 11.7 KB