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Diffstat (limited to 'drivers/staging/fsl-dpaa2/ethsw/README')
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diff --git a/drivers/staging/fsl-dpaa2/ethsw/README b/drivers/staging/fsl-dpaa2/ethsw/README deleted file mode 100644 index b48dcbf7c5fb..000000000000 --- a/drivers/staging/fsl-dpaa2/ethsw/README +++ /dev/null @@ -1,106 +0,0 @@ -DPAA2 Ethernet Switch driver -============================ - -This file provides documentation for the DPAA2 Ethernet Switch driver - - -Contents -======== - Supported Platforms - Architecture Overview - Creating an Ethernet Switch - Features - - - Supported Platforms -=================== -This driver provides networking support for Freescale LS2085A, LS2088A -DPAA2 SoCs. - - -Architecture Overview -===================== -The Ethernet Switch in the DPAA2 architecture consists of several hardware -resources that provide the functionality. These are allocated and -configured via the Management Complex (MC) portals. MC abstracts most of -these resources as DPAA2 objects and exposes ABIs through which they can -be configured and controlled. - -For a more detailed description of the DPAA2 architecture and its object -abstractions see: - drivers/staging/fsl-mc/README.txt - -The Ethernet Switch is built on top of a Datapath Switch (DPSW) object. - -Configuration interface: - - --------------------- - | DPAA2 Switch driver | - --------------------- - . - . - ---------- - | DPSW API | - ---------- - . software - ================= . ============== - . hardware - --------------------- - | MC hardware portals | - --------------------- - . - . - ------ - | DPSW | - ------ - -Driver uses the switch device driver model and exposes each switch port as -a network interface, which can be included in a bridge. Traffic switched -between ports is offloaded into the hardware. Exposed network interfaces -are not used for I/O, they are used just for configuration. This -limitation is going to be addressed in the future. - -The DPSW can have ports connected to DPNIs or to PHYs via DPMACs. - - - [ethA] [ethB] [ethC] [ethD] [ethE] [ethF] - : : : : : : - : : : : : : -[eth drv] [eth drv] [ ethsw drv ] - : : : : : : kernel -======================================================================== - : : : : : : hardware - [DPNI] [DPNI] [============= DPSW =================] - | | | | | | - | ---------- | [DPMAC] [DPMAC] - ------------------------------- | | - | | - [PHY] [PHY] - -For a more detailed description of the Ethernet switch device driver model -see: - Documentation/networking/switchdev.rst - -Creating an Ethernet Switch -=========================== -A device is created for the switch objects probed on the MC bus. Each DPSW -has a number of properties which determine the configuration options and -associated hardware resources. - -A DPSW object (and the other DPAA2 objects needed for a DPAA2 switch) can -be added to a container on the MC bus in one of two ways: statically, -through a Datapath Layout Binary file (DPL) that is parsed by MC at boot -time; or created dynamically at runtime, via the DPAA2 objects APIs. - -Features -======== -Driver configures DPSW to perform hardware switching offload of -unicast/multicast/broadcast (VLAN tagged or untagged) traffic between its -ports. - -It allows configuration of hardware learning, flooding, multicast groups, -port VLAN configuration and STP state. - -Static entries can be added/removed from the FDB. - -Hardware statistics for each port are provided through ethtool -S option. |