318 lines
10 KiB
Plaintext
318 lines
10 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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if NET_6LOWPAN
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config NET_6LOWPAN_NREASSBUF
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int "Number of preallocated reassembly buffers"
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default 2
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---help---
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Large IPv6 packets will be fragmented by 6LoWPAN into multiple
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frames and reconstitued into a reassembly buffer on the receiving
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side. Each concurrent reassembly requires one buffer. Reassembly
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buffers are large: The size of the 6LoWPAN MTU plus some overhead
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for the reassembly state.
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Some reassembly buffers may be preallocated; some may be allocated
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dynamically from the stack. The former require more static memory
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usage; the later require additional CPU cycles to perform the
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allocation and may effect deterministic behavior. So this is a
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trade-off between resources and performance. If the number of pre-
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allocated reassembly buffers are exhausted, the reassembly will
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continue with dynamically allocated reassembly buffers.
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This behavior can be changed with CONFIG_NET_6LOWPAN_REASS_STATIC
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config NET_6LOWPAN_REASS_STATIC
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bool "Static reassembly buffers"
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default n
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---help---
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By default, reassembly buffers may be allocated dynamically from the
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stack when all of the statically allocation reassembly buffers are
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in use. This will require additional CPU cycles to perform the
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allocation and may effect deterministic behavior. This option may
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be selected to suppress all dynamica allocation of reassembly
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buffers. In that case, only static reassembly buffers are available;
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when those are exhausted, frames that require reassembly will be lost.
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choice
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prompt "6LoWPAN Compression"
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default NET_6LOWPAN_COMPRESSION_HC06
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config NET_6LOWPAN_COMPRESSION_IPv6
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bool "IPv6 Dispatch"
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---help---
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Packets compression when only IPv6 dispatch is used. There is no
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compression in this case, all fields are sent inline. We just add
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the IPv6 dispatch byte before the packet.
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config NET_6LOWPAN_COMPRESSION_HC1
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bool "6LoWPAN HC1"
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---help---
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Compress IP/UDP header using HC1 and HC_UDP
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config NET_6LOWPAN_COMPRESSION_HC06
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bool "6LoWPAN HC06"
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---help---
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Compress IP/UDP header using HC06 compression
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endchoice # 6LoWPAN Compression
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config NET_6LOWPAN_COMPRESSION_THRESHOLD
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int "Lower compression threshold"
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default 63
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depends on !NET_6LOWPAN_COMPRESSION_IPv6
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---help---
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CONFIG_NET_6LOWPAN_COMPRESSION_THRESHOLD sets a lower threshold for
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when packets should not be compressed.
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config NET_6LOWPAN_MINPORT
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hex "Minimum port number"
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default 0xf0b0
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depends on NET_6LOWPAN_COMPRESSION_HC1
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---help---
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HC1 compression of UDP headersis feasible only if both src and dest
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ports are between CONFIG_NET_6LOWPAN_MINPORT and
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CONFIG_NET_6LOWPAN_MINPORT + 15, inclusive.
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All nodes must agree on the value of CONFIG_NET_6LOWPAN_MINPORT
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if NET_6LOWPAN_COMPRESSION_HC06
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config NET_6LOWPAN_MAXADDRCONTEXT
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int "Maximum address contexts"
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default 1
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---help---
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If we use IPHC compression, how many address contexts do we support?
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_0
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hex "Address context 0 Prefix 0"
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default 0xaa
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---help---
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Prefix 0 for address context zero (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_1
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hex "Address context 0 Prefix 1"
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default 0xaa
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---help---
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Prefix 1 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_2
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hex "Address context 0 Prefix 2"
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default 0xaa
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---help---
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Prefix 2 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_3
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hex "Address context 0 Prefix 3"
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default 0xaa
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---help---
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Prefix 3 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_4
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hex "Address context 0 Prefix 4"
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default 0xaa
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---help---
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Prefix 4 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_5
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hex "Address context 0 Prefix 5"
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default 0xaa
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---help---
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Prefix 5 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_6
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hex "Address context 0 Prefix 6"
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default 0xaa
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---help---
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Prefix 6 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_0_7
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hex "Address context 0 Prefix 7"
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default 0xaa
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---help---
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Prefix 7 for address context 0 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 0)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_1
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bool "Pre-initialize address context 1"
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default n
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---help---
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Preinitialize address context 1 for better header compression
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(Saves up to 13 bytes per 6lowpan packet). Assumes
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CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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if NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_1
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_0
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hex "Address context 1 Prefix 0"
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default 0xaa
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---help---
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Prefix 0 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_1
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hex "Address context 1 Prefix 1"
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default 0xaa
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---help---
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Prefix 1 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_2
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hex "Address context 1 Prefix 2"
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default 0xaa
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---help---
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Prefix 2 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_3
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hex "Address context 1 Prefix 3"
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default 0xaa
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---help---
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Prefix 3 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_4
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hex "Address context 1 Prefix 4"
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default 0xaa
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---help---
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Prefix 4 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_5
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hex "Address context 1 Prefix 5"
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default 0xaa
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---help---
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Prefix 5 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_6
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hex "Address context 1 Prefix 6"
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default 0xaa
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---help---
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Prefix 6 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_1_7
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hex "Address context 1 Prefix 7"
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default 0xaa
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---help---
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Prefix 7 for address context 1 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 1)
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endif # NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_1
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config NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_2
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bool "Pre-initialize address context 2"
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default n
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depends on NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_1
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---help---
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Preinitialize any address contexts for better header compression
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(Saves up to 13 bytes per 6lowpan packet). Assumes
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CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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if NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_2
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_0
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hex "Address context 2 Prefix 0"
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default 0xaa
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---help---
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Prefix 0 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_1
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hex "Address context 2 Prefix 1"
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default 0xaa
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---help---
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Prefix 1 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_2
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hex "Address context 2 Prefix 2"
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default 0xaa
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---help---
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Prefix 2 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_3
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hex "Address context 2 Prefix 3"
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default 0xaa
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---help---
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Prefix 3 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_4
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hex "Address context 2 Prefix 4"
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default 0xaa
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---help---
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Prefix 4 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_5
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hex "Address context 2 Prefix 5"
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default 0xaa
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---help---
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Prefix 5 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_6
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hex "Address context 2 Prefix 6"
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default 0xaa
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---help---
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Prefix 6 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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config NET_6LOWPAN_MAXADDRCONTEXT_PREFIX_2_7
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hex "Address context 2 Prefix 7"
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default 0xaa
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---help---
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Prefix 7 for address context 2 (assumes CONFIG_NET_6LOWPAN_MAXADDRCONTEXT >= 2)
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endif # NET_6LOWPAN_MAXADDRCONTEXT_PREINIT_2
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endif # NET_6LOWPAN_COMPRESSION_HC06
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config NET_6LOWPAN_EXTENDEDADDR
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bool "Extended IEEE 802.15.4 address"
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default n
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---help---
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By default, a 2-byte short address is used for the IEEE802.15.4 MAC
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device's link layer address. If this option is selected, then an
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8-byte extended address will be used.
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All devices operating on a network have unique, 8-byte addresses,
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referred to as extended addresses. A device will use either the
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extended address for direct communication within the PAN or the
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short 2-byte address that was allocated by the PAN coordinator when
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the device associated.
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config NET_6LOWPAN_MAXAGE
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int "Packet reassembly timeout"
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default 20
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---help---
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Timeout for packet reassembly at the 6lowpan layer in units of
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seconds (should be < 60s)
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config NET_6LOWPAN_MAX_MACTRANSMITS
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int "Max MAC transmissions"
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default 4
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range 1 255
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---help---
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CONFIG_NET_6LOWPAN_MAX_MACTRANSMITS specifies how many times the MAC
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layer should resend packets if no link-layer ACK was received. This
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only makes sense with the csma_driver.
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config NET_6LOWPAN_PKTSIZE
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int "6LoWPAN packet buffer size"
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default 1294
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range 590 1518
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---help---
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Packet buffer size. This size includes the TCP/UDP payload plus the
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size of TCP/UDP header, the IP header, and the Ethernet header.
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This value is related to the MTU (Maximum Transmission Unit), except
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that it includes the size of the link layer header; the payload is
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the MSS (Maximum Segment Size). 6LoWPAN has no link layer header (at
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least in the packet buffer which is only used for re-assembly). So
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for 6LoWPAN the MTU is the same as the PKTSIZE.
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NOTE that this option depends on fragmentation support. By
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supporting fragmentation, we can handle quite large "logical" packet
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sizes. Without fragmentation support, the MTU is equal to the frame
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size and that has already been selected.
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config NET_6LOWPAN_DUMPBUFFER
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bool "Enable dumping of buffer data"
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default n
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depends on DEBUG_NET_INFO
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---help---
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Enable dumping of all packet and frame buffers coming into and out
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of the 6LoWPAN logic. This will generate a large volume of data if
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selected.
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endif # NET_6LOWPAN
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