kopia lustrzana https://github.com/espressif/esp-idf
lwip:refractor to the description about this menuconfig option
rodzic
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@ -4,16 +4,17 @@ 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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If this feature is enabled, then all traffic from layer2(WIFI Driver)
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to layer3(LWIP stack) will make a copy, the layer2 buffer will be
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freed and the copy will be sent to layer3. Please be notified that the
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total layer2 receiving buffer is fixed and ESP32 currently supports 25
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layer2 receiving buffer, when layer2 buffer runs out of memory, then the
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incoming packets will be dropped in hardware. The layer3 buffer is
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allocated from the heap, so the total layer3 receiving buffer depends
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on the available heap size, when heap runs out of memory, no copy will
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be sent to layer3 and packet will be dropped in layer2. Please make sure
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you fully understand the impact of this feature before enabling it.
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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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config LWIP_MAX_SOCKETS
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int "Max number of open sockets"
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