9d3148406c
Squashed commit of the following:
Fix up some final compile isses.
net/netdev: Convert the network down notification logic to use the new wqueue-based notification factility.
net/udp: Convert the UDP readahead notification logic to use the new wqueue-based notification factility.
net/tcp: Convert the TCP readahead notification logic to use the new wqueue-based notification factility.
mm/iob: Convert the IOB notification logic to use the new wqueue-based notification factility.
sched/wqueue: Signals are not good IPCs to support the target poll functionality for several reasons including the amount of data that can be passed with a signal and in the fact that in protected and kernel modes, user threads executing signal handlers in protected, kernel memory is problematic. Instead, convert the same logic to perform the notifications via function callback on the high priority work queue.
121 lines
3.3 KiB
Plaintext
121 lines
3.3 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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menu "UDP Networking"
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config NET_UDP
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bool "UDP Networking"
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default n
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depends on NET
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---help---
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Enable or disable UDP networking support.
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config NET_UDP_NO_STACK
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bool "Disable UDP/IP Stack"
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default n
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select NET_UDP
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---help---
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Build without UDP/IP stack even if UDP networking support enabled.
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if NET_UDP && !NET_UDP_NO_STACK
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config NET_UDP_BINDTODEVICE
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bool "UDP Bind-to-device support"
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default n
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select NET_UDPPROTO_OPTIONS
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select NETDEV_IFINDEX
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---help---
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Enable support for the UDP_BINDTODEVICE socket option.
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Linux has SO_BINDTODEVICE but in NuttX this option is instead
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specific to the UDP protocol.
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config NET_UDP_CHECKSUMS
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bool "UDP checksums"
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default y if NET_IPv6
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default n if !NET_IPv6
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---help---
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Enable/disable UDP checksum support. UDP checksum support is
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REQUIRED for IPv6.
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config NET_UDP_CONNS
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int "Number of UDP sockets"
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default 8
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---help---
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The maximum amount of open concurrent UDP sockets
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config NET_BROADCAST
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bool "UDP broadcast Rx support"
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default n
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---help---
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Incoming UDP broadcast support
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config NET_UDP_READAHEAD
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bool "Enable UDP/IP read-ahead buffering"
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default y
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select NET_READAHEAD
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select MM_IOB
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config UDP_READAHEAD_NOTIFIER
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bool "Support UDP read-ahead notifications"
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default n
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depends on NET_UDP_READAHEAD && SCHED_HPWORK
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---help---
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Enable building of UDP read-ahead notifier logic that will execute a
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worker function on the high priority work queue when read-ahead data
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is available. This is is a general purpose notifier, but was
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developed specifically to support poll() logic where the poll must
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wait for read-ahead data to become available.
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config NET_UDP_WRITE_BUFFERS
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bool "Enable UDP/IP write buffering"
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default n
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select NET_WRITE_BUFFERS
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select MM_IOB
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---help---
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Write buffers allows buffering of ongoing UDP/IP packets, providing
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for higher performance, streamed output.
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You might want to disable UDP/IP write buffering on a highly memory
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memory constrained system where there are no performance issues.
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if NET_UDP_WRITE_BUFFERS
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config NET_UDP_NWRBCHAINS
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int "Number of pre-allocated I/O buffer chain heads"
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default 8
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---help---
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These tiny nodes are used as "containers" to support queuing of
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UDP write buffers. This setting will limit the number of UDP write
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operations that can be "in-flight" at any give time. So a good
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choice for this value would be the same as the maximum number of
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UDP connections.
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config NET_UDP_WRBUFFER_DEBUG
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bool "Force write buffer debug"
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default n
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depends on DEBUG_FEATURES
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select IOB_DEBUG
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---help---
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This option will force debug output from UDP write buffer logic,
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even without network debug output. This is not normally something
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that would want to do but is convenient if you are debugging the
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write buffer logic and do not want to get overloaded with other
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network-related debug output.
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config NET_UDP_WRBUFFER_DUMP
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bool "Force write buffer dump"
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default n
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depends on DEBUG_NET || NET_UDP_WRBUFFER_DEBUG
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select IOB_DEBUG
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---help---
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Dump the contents of the write buffers. You do not want to do this
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unless you really want to analyze the write buffer transfers in
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detail.
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endif # NET_UDP_WRITE_BUFFERS
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endif # NET_UDP && !NET_UDP_NO_STACK
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endmenu # UDP Networking
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