esp-idf/components/esp_netif/Kconfig

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menu "ESP NETIF Adapter"
config ESP_NETIF_IP_LOST_TIMER_INTERVAL
int "IP Address lost timer interval (seconds)"
range 0 65535
default 120
help
The value of 0 indicates the IP lost timer is disabled, otherwise the timer is enabled.
The IP address may be lost because of some reasons, e.g. when the station disconnects
from soft-AP, or when DHCP IP renew fails etc. If the IP lost timer is enabled, it will
be started everytime the IP is lost. Event SYSTEM_EVENT_STA_LOST_IP will be raised if
the timer expires. The IP lost timer is stopped if the station get the IP again before
the timer expires.
choice ESP_NETIF_USE_TCPIP_STACK_LIB
prompt "TCP/IP Stack Library"
default ESP_NETIF_TCPIP_LWIP
help
Choose the TCP/IP Stack to work, for example, LwIP, uIP, etc.
config ESP_NETIF_TCPIP_LWIP
bool "LwIP"
select ESP_NETIF_USES_TCPIP_WITH_BSD_API
depends on LWIP_ENABLE
help
lwIP is a small independent implementation of the TCP/IP protocol suite.
config ESP_NETIF_LOOPBACK
bool "Loopback"
help
Dummy implementation of esp-netif functionality which connects driver transmit
to receive function. This option is for testing purpose only
endchoice
config ESP_NETIF_USES_TCPIP_WITH_BSD_API
bool # Set to true if the chosen TCP/IP stack provides BSD socket API
config ESP_NETIF_RECEIVE_REPORT_ERRORS
bool "Use esp_err_t to report errors from esp_netif_receive"
default n
help
Enable if esp_netif_receive() should return error code. This is useful to inform upper layers
that packet input to TCP/IP stack failed, so the upper layers could implement flow control.
This option is disabled by default due to backward compatibility and will be enabled in v6.0 (IDF-7194)
config ESP_NETIF_L2_TAP
bool "Enable netif L2 TAP support"
select ETH_TRANSMIT_MUTEX
help
A user program can read/write link layer (L2) frames from/to ESP TAP device.
The ESP TAP device can be currently associated only with Ethernet physical interfaces.
config ESP_NETIF_L2_TAP_MAX_FDS
depends on ESP_NETIF_L2_TAP
int "Maximum number of opened L2 TAP File descriptors"
range 1 10
default 5
help
Maximum number of opened File descriptors (FD's) associated with ESP TAP device. ESP TAP FD's take up
a certain amount of memory, and allowing fewer FD's to be opened at the same time conserves memory.
config ESP_NETIF_L2_TAP_RX_QUEUE_SIZE
depends on ESP_NETIF_L2_TAP
int "Size of L2 TAP Rx queue"
range 1 100
default 20
help
Maximum number of frames queued in opened File descriptor. Once the queue is full, the newly arriving
frames are dropped until the queue has enough room to accept incoming traffic (Tail Drop queue
management).
config ESP_NETIF_BRIDGE_EN
depends on ESP_NETIF_TCPIP_LWIP
bool "Enable LwIP IEEE 802.1D bridge"
default n
help
Enable LwIP IEEE 802.1D bridge support in ESP-NETIF. Note that "Number of clients store data in netif"
(LWIP_NUM_NETIF_CLIENT_DATA) option needs to be properly configured to be LwIP bridge avaiable!
endmenu