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Easwar Hariharan authored
This patch qualifies and tunes active and optical cables for optimal bit error rate and signal integrity settings. These settings are fetched from the platform configuration data. Based on attributes of the QSFP cable as read from the SFF-8636 compliant memory map, we select the appropriate settings from the platform configuration data (examples: TX/RX equalization, enabling cable high power, enabling TX/RX clock data recovery mechanisms, and RX amplitude control) and apply them to the SERDES and QSFP cable. The platform configuration data also contains system parameters such as maximum power dissipation supported, and the cables are qualified based on these parameters. As part of qualifying the cables, the correct OfflineDisabledReasons are set for the appropriate scenarios. Reviewed-by:
Dean Luick <dean.luick@intel.com> Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Brent R Rothermel <brent.r.rothermel@intel.com> Signed-off-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
Jubin John <jubin.john@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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