Some PHYs can recognize during a cable test if the impedance in the cable is okay. They can detect reflections caused by impedance discontinuity between a regular 100 Ohm cable and an abnormal part with a higher or lower impedance. This commit introduces a new result code: ETHTOOL_A_CABLE_RESULT_CODE_IMPEDANCE_MISMATCH, which represents the results of a cable test indicating issues with impedance integrity.
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| @@ -515,6 +515,10 @@ enum { · 514 unmodified lines | |||
| 515 | ETHTOOL_A_CABLE_RESULT_CODE_OPEN, | 515 | ETHTOOL_A_CABLE_RESULT_CODE_OPEN, |
| 516 | ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT, | 516 | ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT, |
| 517 | ETHTOOL_A_CABLE_RESULT_CODE_CROSS_SHORT, | 517 | ETHTOOL_A_CABLE_RESULT_CODE_CROSS_SHORT, |
| 518 | /* detected reflection caused by the impedance discontinuity between | ||
| 519 | * a regular 100 Ohm cable and a part with the abnormal impedance value | ||
| 520 | */ | ||
| 521 | ETHTOOL_A_CABLE_RESULT_CODE_IMPEDANCE_MISMATCH, | ||
| 518 | }; | 522 | }; |
| 519 | 523 | ||
| 520 | enum { | 524 | enum { |