Age | Commit message (Collapse) | Author | Files | Lines |
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- do not scale syn-ack window
- fix the max number of outstanding syns in builtin client
- fix syn-sent ack validation to use modulo arithmetic
- improve retransmit timer handler
- fix output buffer allocator leakeage
- improved debugging
Change-Id: Iac3bc0eadf7d0b494a93e22d210a3153b61b3273
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: If7fd125989c90240de12953658d10007b9eb4f07
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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Clean up private-segment fifo preallocation
Change-Id: I53c630ed81d48f2832a204992d73635536926983
Signed-off-by: Dave Barach <dave@barachs.net>
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Simply call pool_init_fixed(...) before using the pool. Note that
fixed, preallocated pools live in individually-mmap'ed address
segments, except for the free element bitmap. A large fixed pool can
exceed 4gb.
Fix tcp buffer allocator leak, remove broken assert
Change-Id: I4421082e12a77c41c6e20f7747f3150dcd01fc26
Signed-off-by: Dave Barach <dave@barachs.net>
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Additionally, flush rx fifos for closed sessions.
Change-Id: If2cc563fbda0451e7572650e98b15f0a694a0ff9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- cleanup connects segment manager even if first
- fix segment manager allocation for listen sessions
- improve handling of process private segments (mheaps/main heap)
- added segment manager cli
Change-Id: Ic2ca97c3622ab2286d5fb5772aeb57680e64f769
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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- set session state as closed on session manager delete
- enable retransmit as opposed to persist timer after persist timer completes
- properly discard buffer chain bytes when new data overlaps ooo
segments
- don't use rxt bytes in snd space estimate used on tx path
Change-Id: Id9cab686e532e5fe70c775d5440260e8eb890a9f
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I0e22c85ea570b934b9c78dc5e86d86d690bdae5e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ia6dd5e948b17b2f3866fe70838eabb09e35415e1
Signed-off-by: Dave Barach <dbarach@cisco.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Additionally:
- remove opaques from stream_session_t
- ensure first segment manager is only used once per app.
Change-Id: I143d1fdb8effc88815ef969b78122ba3ac29e06e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Add SYN_RCVD timeout
- Fix FIN_WAIT_1 to CLOSING transition
Change-Id: I42ca7fc087f6fdfae15bd7a6175dd3226ed341c7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Fix tcp/udp sw checksum computation
- Fix allocation of multi buffer tcp segments for retransmits
- Send FIN only if/when tx fifo is empty
Change-Id: I2e43a14b87a72c9e547b4339b9a51811cf5732c4
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Round up requested fifo size to the next power of two
- Maintain per-segment power-of-two freelists
- Allocate fifos in chunks, to amortize alignment overhead
- Detach builtin test client application after each run
so we can use different fifo sizes each time
- Be more suspicious of session / application indices
Useful prep work for dynamically resizing fifos. As far as the svm
fifo code is concerned, it's OK to set fifo->nitems anywhere in the
interval: [0, 1<<(fifo->freelist_index) + FIFO_SEGMENT_MIN_FIFO_SIZE]
It's unlikely that setting nitems below the path MTU will work out
very well...
Change-Id: Idad73a027dfb7412056cb02988b77e300fa7e8a7
Signed-off-by: Dave Barach <dave@barachs.net>
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- Clean up internal API client registration
- Add proxy server
- Add a reference count to the svm fifo
Change-Id: I5ace1c85497062ed412d26ae76a9e6741af1e984
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Make tcp output buffer allocation macro an inline function
- Use per ip version per thread tx frames for retransmits and timer
events
- Fix / parameterize tcp data structure preallocation
- Add a couple of gdb-callable show commands
- Fix local endpoint cleanup
Change-Id: I67b47b7570aa14cb4634b6fd93c57cd2eacbfa29
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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- Cleanup half-open connections and timers on the right thread
- Ensure half-open connection and transport endpoint pools are thread safe
- Enqueue TX events to the correct vpp thread in the builtin client
- Use transport proto in transport connections instead of session type
Change-Id: Id13239a206afbff6f34a38afa510fe014e4b2049
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Ica99e8cb919fca6b069c37c969d60e8ccc2c6bf9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Increment rcv_nxt for fin packets
- Call tcp_segment_rcv only if buffer has data
- Parse rcv opts before deleting half-open connection
- Fix initial rcv_wnd
- Improved event logging
Change-Id: I9b83c04f432c4cec832c480b03e534deff02c3b1
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I27d7cb4c4e142f29a0c3c3ff85dd1f581970abfc
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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- Fix rx sack option parsing
- Add session sack scoreboard tracing and replaying
- Add svm fifo tracing and replaying
- Scoreboard/svm fifo ooo segment reception fixes
- Improved overall debugging
Change-Id: Ieae07eba355e66f5935253232bb00f2dfb7ece00
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I123eccea98abafeb31f25d2a162501e2eded60d4
Signed-off-by: Damjan Marion <damarion@cisco.com>
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- Data structure preallocation.
- Input state machine fixes for mid-stream 3-way handshake retries.
- Batch connections in the builtin_client
- Multiple private fifo segment support
- Fix elog simultaneous event type registration
- Fix sacks when segment hole is added after highest sacked
- Add "accepting" session state for sessions pending accept
- Add ssvm non-recursive locking
- Estimate RTT for syn-ack
- Don't init fifo pointers. We're using relative offsets for ooo
segments
- CLI to dump individual session
Change-Id: Ie0598563fd246537bafba4feed7985478ea1d415
Signed-off-by: Dave Barach <dbarach@cisco.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ieb5522cd5cb27bcbce808d4cd6df5248716da43c
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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- multiarch on svm fifo
- avoid ip lookup on tx
Change-Id: Iab0d85204a710979417bca1d692cc47877131203
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
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- limit minimum rto per connection
- cleanup sack scoreboard
- switched svm fifo out-of-order data handling from absolute offsets to
relative offsets.
- improve cwnd handling when using sacks
- add cc event debug stats
- improved uri tcp test client/server: bugfixes and added half-duplex mode
- expanded builtin client/server
- updated uri socket client/server code to work in half-duplex
- ensure session node unsets fifo event for empty fifo
- fix session detach
Change-Id: Ia446972340e32a65e0694ee2844355167d0c170d
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I034efb9fc3ebb846c0aef07b18c1f110b8cbf3e3
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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- refactor existing congestion control code (RFC 6582/5681). Handling of ack
feedback now consists of: ack parsing, cc event detection, event handling,
congestion control update
- extend sack scoreboard to support sack based retransmissions
- basic implementation of Eifel detection algorithm (RFC 3522) for
detecting spurious retransmissions
- actually initialize the per-thread frame freelist hash tables
- increase worker stack size to 2mb
- fix session queue node out-of-buffer handling
- ensure that the local buffer cache vec_len matches reality
- avoid 2x spurious event requeues when short of buffers
- count out-of-buffer events
- make the builtin server thread-safe
- fix bihash template threading issue: need to paint -1 across uninitialized
working_copy_length vector elements (via rebase from master)
Change-Id: I646cb9f1add9a67d08f4a87badbcb117980ebfc4
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Change-Id: I6a566d1dc9531b790bdcb00edc73516f86daeb72
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- add option to preallocate fifos in a segment
- track active fifos with doubly linked list instead of vector
- update udp redirect test code to read fifo pointers from API call
instead of digging them up from fifo segment header
- input-node based active-open session generator
Change-Id: I804b81e99d95f8690d17e12660c6645995e28a9a
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Also improves builtin client code.
Change-Id: I8bca1aa632028f95c373726efb0abf2ee0eff414
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I071e8d78ed9312ebf8e572bf01ece447ce1a1835
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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Fix builtin server event queue handling
Change-Id: I21b49c37188746cadb2fd9423291c5dc1335798c
Signed-off-by: Dave Barach <dbarach@cisco.com>
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- Properly initialize connection index
- Add new session to main hash table
- Drop packets that are completely in the past with respect to the rcv
wnd (e.g., retransmits due to premature timer pops)
Change-Id: Ic0873018ff0a4c59e0913863dc7f0c0f822d5c34
Signed-off-by: Dave Barach <dbarach@cisco.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I83a1b02a73fd159f14cca04fed3993f571475a00
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Change-Id: Iec1f739fe24c722d0db6c10cc81b5e8333067ea1
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Visit http://<vpp-ip>/show/interface or similar.
Change-Id: I076b4661cf19d1b94bb01efdadb5849446be915e
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I9664214652229b663c3e3ba7406b4ede96bfb123
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I01c6e3dc3a1b2785df37bb66b19c4b5cbb8f3211
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Ensure that TCP data plus options does not exceed peer's advertised MSS.
Change-Id: I0de824cb3619346f0394dd694942fc1cf33a82b7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Fix in v6 keys :
* The copy of the keys was only partial
A few suggestions are applied in this commit :
* Since there are not so many unused fields, we avoid to memset 0 and prefer
setting the unused fields to 0.
* By using a cast, it seems painless to avoid allocating a structure for the
keys creation.
Change-Id: Iaee6f036f2a979cceaeb297d98ce6c307a5ac029
Signed-off-by: Clement Durand <clement.durand@polytechnique.edu>
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- Improve svm fifo handling of out-of-order segments
- Ensure tsval_recent is updated only if rcv_las falls withing the
segments's sequence space
- Avoid directly dropping old ACKs
- Improve debugging
Change-Id: I88dbe2394a0ad7eb389a4cc12d013a13733953aa
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ic5467df16e870b49c49678b1dbb40f4a2390b3c9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I72298aaae7d172082ece3a8edea4217c11b28d79
Signed-off-by: Dave Barach <dave@barachs.net>
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Among others:
- Moved app event queue to shared memory segment
- Use private memory segment for builtin apps
- Remove pid from svm fifo
- Protect session fifo (de)allocation
- Use fifo event for session disconnects
- Have session queue node poll in all wk threads
Change-Id: I89dbf7fdfebef12f5ef2b34ba3ef3c2c07f49ff2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I19dcc3fcf85c63dc7a7f35e023f6269c9f233d3b
Signed-off-by: flyingeagle23 <wang.hui56@zte.com.cn>
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disable
Change-Id: I6844732adcfdd534512f0925059d92b70dcdc080
Signed-off-by: flyingeagle23 <wang.hui56@zte.com.cn>
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Major refactoring of the session layer api
- Add attatch api for application binding to the the session layer
- Simplify listen/connect calls
- Update application CLI
- Add transport endpoint to accept callback
- Associate segment manager to application and allow for multiple
binds/connects per app
Additional:
- svm fifo cleanup
- add fifo free, format fns
- add fifo offset enqueue unit test
Change-Id: Id93a65047de61afc2bf3d58c9b544339c02065af
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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This patch deprecates stack-based thread identification,
Also removes requirement that thread stacks are adjacent.
Finally, possibly annoying for some folks, it renames
all occurences of cpu_index and cpu_number with thread
index. Using word "cpu" is misleading here as thread can
be migrated ti different CPU, and also it is not related
to linux cpu index.
Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1
Signed-off-by: Damjan Marion <damarion@cisco.com>
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- added persist timer
- update rcv_las whenever sending an ack
- moved fifo size to its own cache line
- improved session and builtin client debugging
Change-Id: Ia649cf942cf0c061a713e8b67f0eb6974a6cd55b
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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- Added svm fifo flag for tracking fifo dequeue events (replaces event
length). Updated all code to switch to the new scheme.
- More session debugging
- Fix peek index wrap
- Add a trivial socket test client
- Fast retransmit/cc fixes
- tx and rx SACK fixes and unit testing
- SRTT computation fix
- remove dupack/ack burst filters
- improve ack rx
- improved segment rx
- builtin client test code
Change-Id: Ic4eb2d5ca446eb2260ccd3ccbcdaa73c64e7f4e1
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
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