f0b1cb578f
The new DSA framework purpose and changes are as below.
- Aligned to Linux DSA framework which has been already mature framework
for many years, For now in zephyr, the DSA components were splited
as: switch, port, master(not need driver file for now), slave, and tag.
Seperated drivers were used for maintaining and developing new
features.
- The unified dts bindings (aligned to linux) were supported. The port
driver would parse DTS to decide the port type (master port, slave
port, or cpu port) to set up the switch. All the ports registered as
standard ethernet devices. (dsa port and dsa switch tree was not
supported.)
- How to add DSA device driver based on the framework? All the device
driver needing to do is providing dsa_spi implementation and private
data, and calling below initialization.
DSA_INIT_INSTANCE(n, _dapi, data)
- For switch tag case, recv/xmit helpers in dsa_api could be used for
taging/untagging. No modified ethernet drivers.
For no-tag type case, ethernet driver of master port should support
packet injection/extraction for slave ports leaving NULL recv/xmit.
The dsa_nxp_imx_netc.c driver will be the first example of the new DSA
framework.
The future work for DSA will be supporting bridge for ports. We may align
Linux to give users two options to use DSA device:
- Standalone mode: the switch ports work as regular ethernet ports.
- Bridge mode: switch mode with virtual bridge device which could be
assigned IP address.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
96 lines
2.4 KiB
Plaintext
96 lines
2.4 KiB
Plaintext
# Distributed Switch Architecture [DSA] configuration options
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# Copyright (c) 2020 DENX Software Engineering GmbH
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# Lukasz Majewski <lukma@denx.de>
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# SPDX-License-Identifier: Apache-2.0
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config ETH_DSA_SUPPORT_DEPRECATED
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bool
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help
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Set by an ethernet driver that supports DSA. This is obsolete,
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and only used for legacy dsa device.
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menuconfig NET_DSA
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bool "Distributed Switch Architecture support"
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help
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Enable Distributed Switch Architecture support.
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if NET_DSA
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config NET_DSA_DEPRECATED
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bool "Distributed Switch Architecture support for legacy device"
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select DEPRECATED
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depends on ETH_DSA_SUPPORT_DEPRECATED
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help
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This is obsolete, and only used for legacy dsa device.
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config DSA_PORT_MAX_COUNT
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int "DSA port max count"
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default 8
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help
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Set DSA port max count.
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config DSA_KSZ8XXX
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bool
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config DSA_KSZ8794
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bool "Support for KSZ8794"
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default y
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depends on DT_HAS_MICROCHIP_KSZ8794_ENABLED
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select DSA_KSZ8XXX
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select SPI if $(dt_compat_on_bus,$(DT_COMPAT_MICROCHIP_KSZ8794),spi)
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help
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Add support for KSZ8794 DSA device driver.
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config DSA_KSZ8863
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bool "Support for KSZ8863"
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default y
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depends on DT_HAS_MICROCHIP_KSZ8863_ENABLED
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select DSA_KSZ8XXX
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select SPI if $(dt_compat_on_bus,$(DT_COMPAT_MICROCHIP_KSZ8863),spi)
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help
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Add support for KSZ8863 DSA device driver.
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config DSA_KSZ8463
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bool "Support for KSZ8463"
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default y
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depends on DT_HAS_MICROCHIP_KSZ8463_ENABLED
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select DSA_KSZ8XXX
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select SPI if $(dt_compat_on_bus,$(DT_COMPAT_MICROCHIP_KSZ8463),spi)
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help
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Add support for KSZ8463 DSA device driver.
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config DSA_KSZ_TAIL_TAGGING
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bool "Support for tail tagging"
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depends on DSA_KSZ8794 || DSA_KSZ8863 || DSA_KSZ8463
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help
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Add support for tail tagging on DSA device.
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config DSA_TAG_SIZE
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int "DSA tag size in bytes"
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default 1 if DSA_KSZ8794 || DSA_KSZ8863 || DSA_KSZ8463
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default 0
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depends on DSA_KSZ_TAIL_TAGGING
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help
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Set the DSA tag length in bytes.
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config DSA_KSZ_PORT_ISOLATING
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bool "Support for ports isolating"
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depends on DSA_KSZ8794 || DSA_KSZ8863 || DSA_KSZ8463
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help
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Add support for traffic isolation on DSA slave ports
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config DSA_SPI
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bool "Support for PHY SPI interface"
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depends on SPI && (DSA_KSZ8794 || DSA_KSZ8863 || DSA_KSZ8463)
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help
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Use SPI bus to communicate with PHY
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module = NET_DSA
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module-dep = NET_LOG
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module-str = Log level for DSA
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module-help = Enables core DSA code to output debug messages.
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source "subsys/net/Kconfig.template.log_config.net"
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endif # NET_DSA
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