subsys/net/l2/ethernet/Kconfig

# Copyright (c) 2018 Intel Corporation.
# SPDX-License-Identifier: Apache-2.0

menuconfig NET_L2_ETHERNET
	bool "Ethernet support"
	help
	  Add support for Ethernet, enabling selecting relevant hardware drivers.
	  If NET_SLIP_TAP is selected, NET_L2_ETHERNET will enable to fully
	  simulate Ethernet through SLIP.

if NET_L2_ETHERNET

module = NET_L2_ETHERNET
module-dep = NET_LOG
module-str = Log level for Ethernet L2 layer
module-help = Enables Ethernet L2 to output debug messages.
source "subsys/net/Kconfig.template.log_config.net"

config NET_L2_ETHERNET_MGMT
	bool "Ethernet network management interface"
	select NET_MGMT
	select NET_MGMT_EVENT
	help
	  Enable support net_mgmt Ethernet interface which can be used to
	  configure at run-time Ethernet drivers and L2 settings.

config NET_VLAN
	bool "Virtual lan support"
	help
	  Enables virtual lan (VLAN) support for Ethernet.

config NET_VLAN_COUNT
	int "Max VLAN tags supported in the system"
	default 1
	range 1 255
	depends on NET_VLAN
	help
	  How many VLAN tags can be configured.

config NET_ARP
	bool "ARP"
	default y
	depends on NET_IPV4
	help
	  Enable ARP support. This is necessary on hardware that requires it to
	  get IPv4 working (like Ethernet devices).

config NET_ARP_TABLE_SIZE
	int "Number of entries in ARP table."
	depends on NET_ARP
	default 2
	help
	  Each entry in the ARP table consumes 22 bytes of memory.

config NET_ARP_GRATUITOUS
	bool "Support gratuitous ARP requests/replies."
	depends on NET_ARP
	default y
	help
	  Gratuitous in this case means a ARP request or reply that is not
	  normally needed according to the ARP specification but could be used
	  in some cases. A gratuitous ARP request is a ARP request packet where
	  the source and destination IP are both set to the IP of the machine
	  issuing the packet and the destination MAC is the broadcast address
	  ff:ff:ff:ff:ff:ff. Ordinarily, no reply packet will occur.
	  A gratuitous ARP reply is a reply to which no request has been made.

if NET_ARP
module = NET_ARP
module-dep = NET_LOG
module-str = Log level for IPv4 ARP
module-help = Enables core ARP code to output debug messages.
source "subsys/net/Kconfig.template.log_config.net"
endif # NET_ARP

source "subsys/net/l2/ethernet/gptp/Kconfig"
source "subsys/net/l2/ethernet/lldp/Kconfig"

config NET_ETHERNET_BRIDGE
	bool "Ethernet Bridging support"
	select NET_PROMISCUOUS_MODE
	help
	  Enables Ethernet bridging where packets can be transparently
	  forwarded across interfaces registered to a bridge.

if NET_ETHERNET_BRIDGE
module = NET_ETHERNET_BRIDGE
module-dep = NET_LOG
module-str = Log level for Ethernet Bridging
module-help = Enables Ethernet Bridge code to output debug messages.
source "subsys/net/Kconfig.template.log_config.net"
endif # NET_ETHERNET_BRIDGE

config NET_ETHERNET_BRIDGE_SHELL
	bool "Ethernet Bridging management shell"
	depends on NET_ETHERNET_BRIDGE
	select SHELL
	help
	  Enables shell utility to manage bridge configuration interactively.

config NET_ETHERNET_BRIDGE_DEFAULT
	bool "Declare one bridge instance for shell usage"
	depends on NET_ETHERNET_BRIDGE_SHELL
	default y
	help
	  If the bridge shell is the sole user of the bridge code then
	  it needs at least one bridge instance to be useful.
	  Say y if this is the case. If you only want to inspect
	  existing bridge instances then say n.

endif # NET_L2_ETHERNET