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26 lines
839 B
ReStructuredText
26 lines
839 B
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0
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===============
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NIC SR-IOV APIs
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===============
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Modern NICs are strongly encouraged to focus on implementing the ``switchdev``
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model (see :ref:`switchdev`) to configure forwarding and security of SR-IOV
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functionality.
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Legacy API
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==========
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The old SR-IOV API is implemented in ``rtnetlink`` Netlink family as part of
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the ``RTM_GETLINK`` and ``RTM_SETLINK`` commands. On the driver side
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it consists of a number of ``ndo_set_vf_*`` and ``ndo_get_vf_*`` callbacks.
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Since the legacy APIs do not integrate well with the rest of the stack
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the API is considered frozen; no new functionality or extensions
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will be accepted. New drivers should not implement the uncommon callbacks;
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namely the following callbacks are off limits:
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- ``ndo_get_vf_port``
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- ``ndo_set_vf_port``
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- ``ndo_set_vf_rss_query_en``
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