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30 Overview of Networking Drivers
31 ==============================
33 The networking drivers may be classified in two categories:
35 - physical for real devices
36 - virtual for emulated devices
38 Some physical devices may be shaped through a virtual layer as for
40 The interface seen in the virtual environment is a VF (Virtual Function).
42 The ethdev layer exposes an API to use the networking functions
44 The bottom half part of ethdev is implemented by the drivers.
45 Thus some features may not be implemented.
47 There are more differences between drivers regarding some internal properties,
48 portability or even documentation availability.
49 Most of these differences are summarized below.
51 More details about features can be found in :doc:`features`.
53 .. _table_net_pmd_features:
55 .. include:: overview_table.txt
59 Features marked with "P" are partially supported. Refer to the appropriate
60 NIC guide in the following sections for details.