2016-08-17 11:08:22 -04:00
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menu "LWIP"
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2016-11-16 03:24:41 -05:00
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config L2_TO_L3_COPY
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bool "Enable copy between Layer2 and Layer3 packets"
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default 0
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help
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2016-11-16 21:22:20 -05:00
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If this feature is enabled, all traffic from layer2(WIFI Driver) will be
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copied to a new buffer before sending it to layer3(LWIP stack), freeing
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the layer2 buffer.
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Please be notified that the total layer2 receiving buffer is fixed and
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ESP32 currently supports 25 layer2 receiving buffer, when layer2 buffer
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runs out of memory, then the incoming packets will be dropped in hardware.
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The layer3 buffer is allocated from the heap, so the total layer3 receiving
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buffer depends on the available heap size, when heap runs out of memory,
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no copy will be sent to layer3 and packet will be dropped in layer2.
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Please make sure you fully understand the impact of this feature before
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enabling it.
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2016-11-16 03:24:41 -05:00
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2016-08-17 11:08:22 -04:00
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config LWIP_MAX_SOCKETS
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2016-10-28 01:35:06 -04:00
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int "Max number of open sockets"
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2016-09-28 01:24:58 -04:00
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range 1 16
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2016-11-29 03:25:17 -05:00
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default 10
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2016-09-28 01:24:58 -04:00
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help
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Sockets take up a certain amount of memory, and allowing fewer
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sockets to be open at the same time conserves memory. Specify
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2016-10-28 01:35:06 -04:00
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the maximum amount of sockets here. The valid value is from 1
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to 16.
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2016-08-17 11:08:22 -04:00
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2016-08-24 01:29:06 -04:00
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config LWIP_THREAD_LOCAL_STORAGE_INDEX
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2016-09-28 01:24:58 -04:00
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int "Index for thread-local-storage pointer for lwip"
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default 0
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help
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Specify the thread-local-storage-pointer index for lwip
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use.
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2016-08-24 01:29:06 -04:00
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2016-09-20 03:36:55 -04:00
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config LWIP_SO_REUSE
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2016-09-28 01:24:58 -04:00
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bool "Enable SO_REUSEADDR option"
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default 0
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help
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Enabling this option allows binding to a port which remains in
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TIME_WAIT.
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2016-09-20 03:36:55 -04:00
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2017-01-05 06:17:52 -05:00
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config LWIP_SO_RCVBUF
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bool "Enable SO_RCVBUF option"
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default 0
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help
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Enabling this option allows checking for available data on a netconn.
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2016-11-03 00:46:46 -04:00
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config LWIP_DHCP_MAX_NTP_SERVERS
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2017-01-17 04:44:25 -05:00
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int "Maximum number of NTP servers"
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default 1
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range 1 16
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help
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Set maximum number of NTP servers used by LwIP SNTP module.
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First argument of sntp_setserver/sntp_setservername functions
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is limited to this value.
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2016-11-03 00:46:46 -04:00
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2016-12-26 02:47:20 -05:00
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config LWIP_IP_FRAG
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bool "Enable fragment outgoing IP packets"
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default 0
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2017-01-17 04:44:25 -05:00
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help
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2016-12-26 02:47:20 -05:00
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Enabling this option allows fragmenting outgoing IP packets if their size
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exceeds MTU.
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config LWIP_IP_REASSEMBLY
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bool "Enable reassembly incoming fragmented IP packets"
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default 0
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2017-01-17 04:44:25 -05:00
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help
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2016-12-26 02:47:20 -05:00
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Enabling this option allows reassemblying incoming fragmented IP packets.
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2017-01-17 04:44:25 -05:00
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config TCP_MAXRTX
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int "Maximum number of retransmissions of data segments"
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default 12
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range 3 12
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help
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Set maximum number of retransmissions of data segments.
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config TCP_SYNMAXRTX
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int "Maximum number of retransmissions of SYN segments"
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default 6
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range 3 12
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help
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Set maximum number of retransmissions of SYN segments.
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2016-08-17 11:08:22 -04:00
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endmenu
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