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The flow allocator now passes the full qos specification to the
endpoint, instead of just a cube. This is a more flexible
architecture, as it makes QoS cubes internal to the layers.
Adds endianness transforms for the flow allocator protocol in the
normal IPCP.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This will check the return values of init functions so that the code
is more robust. It also removes a duplicate init in the timerwheel,
checks for buffer overflows in the RIB and checks string lengths.
Signed-off-by: Sander Vrijders <[email protected]>
Signed-off-by: Dimitri Staessens <[email protected]>
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This removes configuration from the FRCT protocol to send it during
flow allocation.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Since the seqno is further ahead than the lwe (this was checked
before), we can safely use seqno - lwe in unsigned arithmetic as the
distance in the sequence number space.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds a data qos cube that is reliable. Reliable qos can be
selected by setting the loss parameter of the qosspec to 0.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The __frct_rcv should return -EAGAIN if there is no packet for the
application, but 0 was always returned. Also fixes sequence number
rollover.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This revises the delta-t implementation to align with Watson's timer
specifications. FRCT will never deliver out-of-order packets. A raw
flow (without delta-t state machine) will be able to provide such a
service.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The reordering queue is replaced by a fixed ring buffer for speed and
simplicity.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Happy New Year, Ouroboros.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Endianness conversion from/to the network for the sequence number was
missing in 68694bc.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This replaces the variable FRCT header with a packed struct, which
significantly simplifies the implementation. The shm_du_buff calls to
release the head/tail are updated to return a pointer to the original
head or the new tail (in symmetry to the alloc calls, which return a
pointer to the new head and old tail), so that it immediately points
to the structure that is needed.
The frct_pci sources are removed and frct is now fully in the frct.c
source file.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The frct_pci and rq headers are moved from include/ouroboros to
src/lib since they are only needed in the library. FRCT is moved to
its own source file.
FRCT takes the application PDUs, encapsulates and processes them and
hands them back. This makes it easier to disable FRCT should the
application want to write to a "raw" flow. An FRCT instance is now
allocated upon alloc and released upon dealloc.
The FRCT data structure is split into a sender and receiver connection
record. Setting a new configuration will now be done upon sending the
next data PDU, which will flag the DRF for a new run and use that
configuration. This avoids some issues should packets arrive
out-of-order, and simplifies setting a configuration.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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