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Diffstat (limited to 'Documentation/networking/devlink/i40e.rst')
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diff --git a/Documentation/networking/devlink/i40e.rst b/Documentation/networking/devlink/i40e.rst index d3cb5bb5197e..51c887f0dc83 100644 --- a/Documentation/networking/devlink/i40e.rst +++ b/Documentation/networking/devlink/i40e.rst @@ -7,6 +7,40 @@ i40e devlink support This document describes the devlink features implemented by the ``i40e`` device driver. +Parameters +========== + +.. list-table:: Generic parameters implemented + :widths: 5 5 90 + + * - Name + - Mode + - Notes + * - ``max_mac_per_vf`` + - runtime + - Controls the maximum number of MAC addresses a VF can use + on i40e devices. + + By default (``0``), the driver enforces its internally calculated per-VF + MAC filter limit, which is based on the number of allocated VFS. + + If set to a non-zero value, this parameter acts as a strict cap: + the driver will use the user-provided value instead of its internal + calculation. + + **Important notes:** + + - This value **must be set before enabling SR-IOV**. + Attempting to change it while SR-IOV is enabled will return an error. + - MAC filters are a **shared hardware resource** across all VFs. + Setting a high value may cause other VFs to be starved of filters. + - This value is a **Administrative policy**. The hardware may return + errors when its absolute limit is reached, regardless of the value + set here. + + The default value is ``0`` (internal calculation is used). + + Info versions ============= |