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Diffstat (limited to 'Documentation/networking/ethtool-netlink.rst')
| -rw-r--r-- | Documentation/networking/ethtool-netlink.rst | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index 0656ad4be000..3ab423b80e91 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -1730,24 +1730,28 @@ Request contents: Kernel response contents: - ====================================== ====== ============================= - ``ETHTOOL_A_PSE_HEADER`` nested reply header - ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` u32 Operational state of the PoDL - PSE functions - ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` u32 power detection status of the - PoDL PSE. - ``ETHTOOL_A_C33_PSE_ADMIN_STATE`` u32 Operational state of the PoE - PSE functions. - ``ETHTOOL_A_C33_PSE_PW_D_STATUS`` u32 power detection status of the - PoE PSE. - ``ETHTOOL_A_C33_PSE_PW_CLASS`` u32 power class of the PoE PSE. - ``ETHTOOL_A_C33_PSE_ACTUAL_PW`` u32 actual power drawn on the - PoE PSE. - ``ETHTOOL_A_C33_PSE_EXT_STATE`` u32 power extended state of the - PoE PSE. - ``ETHTOOL_A_C33_PSE_EXT_SUBSTATE`` u32 power extended substatus of - the PoE PSE. - ====================================== ====== ============================= + ========================================== ====== ============================= + ``ETHTOOL_A_PSE_HEADER`` nested reply header + ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` u32 Operational state of the PoDL + PSE functions + ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` u32 power detection status of the + PoDL PSE. + ``ETHTOOL_A_C33_PSE_ADMIN_STATE`` u32 Operational state of the PoE + PSE functions. + ``ETHTOOL_A_C33_PSE_PW_D_STATUS`` u32 power detection status of the + PoE PSE. + ``ETHTOOL_A_C33_PSE_PW_CLASS`` u32 power class of the PoE PSE. + ``ETHTOOL_A_C33_PSE_ACTUAL_PW`` u32 actual power drawn on the + PoE PSE. + ``ETHTOOL_A_C33_PSE_EXT_STATE`` u32 power extended state of the + PoE PSE. + ``ETHTOOL_A_C33_PSE_EXT_SUBSTATE`` u32 power extended substatus of + the PoE PSE. + ``ETHTOOL_A_C33_PSE_AVAIL_PW_LIMIT`` u32 currently configured power + limit of the PoE PSE. + ``ETHTOOL_A_C33_PSE_PW_LIMIT_RANGES`` nested Supported power limit + configuration ranges. + ========================================== ====== ============================= When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` attribute identifies the operational state of the PoDL PSE functions. The operational state of the @@ -1809,6 +1813,16 @@ Possible values are: ethtool_c33_pse_ext_substate_power_not_available ethtool_c33_pse_ext_substate_short_detected +When set, the optional ``ETHTOOL_A_C33_PSE_AVAIL_PW_LIMIT`` attribute +identifies the C33 PSE power limit in mW. + +When set the optional ``ETHTOOL_A_C33_PSE_PW_LIMIT_RANGES`` nested attribute +identifies the C33 PSE power limit ranges through +``ETHTOOL_A_C33_PSE_PWR_VAL_LIMIT_RANGE_MIN`` and +``ETHTOOL_A_C33_PSE_PWR_VAL_LIMIT_RANGE_MAX``. +If the controller works with fixed classes, the min and max values will be +equal. + PSE_SET ======= @@ -1820,6 +1834,8 @@ Request contents: ``ETHTOOL_A_PSE_HEADER`` nested request header ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` u32 Control PoDL PSE Admin state ``ETHTOOL_A_C33_PSE_ADMIN_CONTROL`` u32 Control PSE Admin state + ``ETHTOOL_A_C33_PSE_AVAIL_PWR_LIMIT`` u32 Control PoE PSE available + power limit ====================================== ====== ============================= When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` attribute is used @@ -1830,6 +1846,18 @@ to control PoDL PSE Admin functions. This option is implementing The same goes for ``ETHTOOL_A_C33_PSE_ADMIN_CONTROL`` implementing ``IEEE 802.3-2022`` 30.9.1.2.1 acPSEAdminControl. +When set, the optional ``ETHTOOL_A_C33_PSE_AVAIL_PWR_LIMIT`` attribute is +used to control the available power value limit for C33 PSE in milliwatts. +This attribute corresponds to the `pse_available_power` variable described in +``IEEE 802.3-2022`` 33.2.4.4 Variables and `pse_avail_pwr` in 145.2.5.4 +Variables, which are described in power classes. + +It was decided to use milliwatts for this interface to unify it with other +power monitoring interfaces, which also use milliwatts, and to align with +various existing products that document power consumption in watts rather than +classes. If power limit configuration based on classes is needed, the +conversion can be done in user space, for example by ethtool. + RSS_GET ======= |