menu "Real-time IPC drivers"
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config XENO_DRIVERS_RTIPC
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tristate "RTIPC protocol family"
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help
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This driver provides the real-time IPC protocol family
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(PF_RTIPC) over RTDM.
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config XENO_DRIVERS_RTIPC_XDDP
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depends on XENO_DRIVERS_RTIPC
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select XENO_OPT_PIPE
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default y
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bool "XDDP cross-domain datagram protocol"
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help
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Xenomai's XDDP protocol enables threads to exchange datagrams
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across the Xenomai/Linux domain boundary, using "message
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pipes".
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Message pipes are bi-directional FIFO communication channels
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allowing data exchange between real-time Xenomai threads and
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regular (i.e. non real-time) user-space processes. Message
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pipes are datagram-based and thus natively preserve message
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boundaries, but they can also be used in byte stream mode when
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sending from the real-time to the non real-time domain.
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The maximum number of communication ports available in the
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system can be configured using the XENO_OPT_PIPE_NRDEV option
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from the Nucleus menu.
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config XENO_DRIVERS_RTIPC_IDDP
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depends on XENO_DRIVERS_RTIPC
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select XENO_OPT_MAP
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default y
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bool "IDDP intra-domain datagram protocol"
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help
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Xenomai's IDDP protocol enables real-time threads to exchange
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datagrams within the Xenomai domain.
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config XENO_OPT_IDDP_NRPORT
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depends on XENO_DRIVERS_RTIPC_IDDP
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int "Number of IDDP communication ports"
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default 32
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help
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This parameter defines the number of IDDP ports available in
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the system for creating receiver endpoints. Port numbers range
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from 0 to CONFIG_XENO_OPT_IDDP_NRPORT - 1.
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config XENO_DRIVERS_RTIPC_BUFP
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depends on XENO_DRIVERS_RTIPC
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select XENO_OPT_MAP
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default y
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bool "Buffer protocol"
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help
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The buffer protocol implements a byte-oriented, one-way
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Producer-Consumer data path, which makes it a bit faster than
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datagram-oriented protocols. All messages written are buffered
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into a single memory area in strict FIFO order, until read by
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the consumer.
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This protocol prevents short writes, and only allows short
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reads when a potential deadlock situation arises (i.e. readers
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and writers waiting for each other indefinitely), which
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usually means that the buffer size does not fit the use peer
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threads are making from the protocol.
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config XENO_OPT_BUFP_NRPORT
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depends on XENO_DRIVERS_RTIPC_BUFP
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int "Number of BUFP communication ports"
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default 32
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help
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This parameter defines the number of BUFP ports available in
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the system for creating receiver endpoints. Port numbers range
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from 0 to CONFIG_XENO_OPT_BUFP_NRPORT - 1.
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endmenu
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