1 .. SPDX-License-Identifier: GPL-2.0 2 3 =============== 4 NIC SR-IOV APIs 5 =============== 6 7 Modern NICs are strongly encouraged to focus on implementing the ``switchdev`` 8 model (see :ref:`switchdev`) to configure forwarding and security of SR-IOV 9 functionality. 10 11 Legacy API 12 ========== 13 14 The old SR-IOV API is implemented in ``rtnetlink`` Netlink family as part of 15 the ``RTM_GETLINK`` and ``RTM_SETLINK`` commands. On the driver side 16 it consists of a number of ``ndo_set_vf_*`` and ``ndo_get_vf_*`` callbacks. 17 18 Since the legacy APIs do not integrate well with the rest of the stack 19 the API is considered frozen; no new functionality or extensions 20 will be accepted. New drivers should not implement the uncommon callbacks; 21 namely the following callbacks are off limits: 22 23 - ``ndo_get_vf_port`` 24 - ``ndo_set_vf_port`` 25 - ``ndo_set_vf_rss_query_en``
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