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Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ifa47e1500e5cfb3c717f87b1d21131b9531c9005
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Also adds support for half-open support transport migration.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Id04c194138956336f93246bbed0332a7030c67e2
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Half-open tls sessions are now tracked by the app worker and are cleaned
up only when tcp cleans up its half-open session, i.e., independent of
when the established tls context is allocated.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If5d594d7095192dd527daf4ea1358ffeccdfcc7a
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App transports not supported for now. Will have to be updated
individually.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I75cb6c4e1c5af008af72858a9ee573016812abd4
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Some app(e.g. Envoy) may call shutdown() instead of close() when
draining connection.
Type: improvement
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: I9543b9ca3caa87b10b134fd1fc4019124e41e4d2
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Use half-open sessions to track virtual circuit connection
establishment. These sesssions can only be allocated and freed by the
thread that allocates half-open connections (main). Consequently, they
can only be freed on half-open cleanup notifications from transports.
Goal is to simplify state tracking within the session layer but it's
also a first step towards allowing builtin apps to track and cleanup
outstanding connects.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I8a535906d13eb7f8966deb82333839de80f8049f
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If fifo full, default to requesting an app deq notification and forcing
an ack (window update) if zero rcv window sent is still active.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Iade7e1722503da149c62c465c472edbb0a5599f7
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Type: feature
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ifdd6024daf044751895bb8d2deabad41d3a80c92
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Type: fix
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Id2c06f49bcae1a26a2d16d58f9da7a4d3175bf3c
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Experimental support for session layer interrupt mode. When enabled
(use-private-rx-mqs must be set) session queue node switches to
interrupt state when lightly loaded, i.e., no events and less than 1
vector/dispatch.
Because transport protocols require a periodic time update, when in
interrupt state the session queue node workers register a timerfd with
the unix-epoll-input node that when triggered signals, i.e., wakes up,
the queue node. Under light load, the timer is set to trigger every 1ms
whereas if no session is allocated, the worker moves to idle state and
the timeout is set to 100ms.
Type: feature
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I905b00777fbc025faf9c4074fce4c516cd139387
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Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I998c0686f9f7dc556dda8b28e23bbed127d0aafc
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Add option to use per app private segments for app to vpp message
queues, as opposed to exposing internal message queues segment.
When so configured, internal message queues are still polled by the
session queue node but external app message queues are handled by a new
input node (appsl-rx-mqs-input) that runs in interrupt state. Signaling
of the node, when mqs receive new messages, is done through eventfds
epolled by worker epoll input nodes.
Type: feature
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Iffe8ce5a9944a56a14e6d0f492a850cb9e392d16
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Type: refactor
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I63a44e11322f6fe27255820524e022f6d710b083
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Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I71b9d54311fcad808fcdaad0df2dca8c161d580e
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Type: improvement
Needed to support multi-worker tests
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I68d5590cece24a744513dc6c324dfb2861a38a94
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Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I21bda0c46406aff54ad8fe5e44491e8e332de170
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Type: fix
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I69e912ddf64d8ec89f8d93e02a201781b99de0bd
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Type: improvement
Do extra checks when establishing an active connect and cleanup pending
connects if application detaches.
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ibe9349db57b313ba2aa5ea3960ef5cf755f5098a
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Type: refactor
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ida9daefc20a161b36d6f36c56267123c7f2efc01
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Type: refactor
Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I11cf806e22158e021a9a405eb4487a9ed6fdbccf
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Type: improvement
Change-Id: I9dd850a1ce85b0adb5136233f176117e0ee38817
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I71df27049ef0193578f0c42f8f8bbd5c54e4d53e
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Type: improvement
This can be used as alternative to udpc
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ic3f7efe6728b25d4a8a0b61ddb36de66b4672c4f
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Type: feature
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If4dee6dba1ea942daa921d566b35cdecdda680ee
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Type: refactor
Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com>
Change-Id: I45c6f434065ab0ad8ada3184b5a875a32a1b3faa
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Type: improvement
Use only one api to retrieve transport send parameters. Additionally,
allow transports to request postponing and descheduling of events.
With this, tcp now requests descheduling of sessions when the
connections are stuck probing for zero snd_wnd
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I722c974f3e68fa15424c519a1fffacda43af050c
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Type: refactor
Switch from a wrapped byte space to a "continuous" one wherein fifo
chunks are appended to the fifo as more data is enqueued and chunks are
removed as data is dequeued.
The fifo is still subject to a maximum size, i.e., maximum number of
bytes that can be enqueued, so the max number of chunks associated to
the fifo is also constrained.
When enqueueing data, which must fit within the available free space, if
not enough "supporting" chunk memory is available, the fifo asks the
fifo segment for enough chunk memory to ensure that the write can
succeed. To avoid allocating large amounts of small chunks due to small
writes, if possible, the size of the chunks requested is lower capped by
min_alloc.
When dequeuing data, all the chunks that have been completely drained,
i.e., head moved beyond the chunks’ end bytes, are unlinked from the
fifo and returned to the fifo segment. The one exception to this is the
last chunk which is never unlinked.
Change-Id: I98c1dbd9135fb79650365c7e40c29238b96cd4ee
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: fix
Change-Id: Ie024792015f3c9c52102c9be03da63c79f3456af
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Type: fix
Adding few extra checks while doign session validationwq!
Signed-off-by: Srikanth Akula <srakula@cisco.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I4d18b5ad97d1802ce38a07aeb56b5f35939c1187
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Having session enable in config file wasn't
working for multiple workers
Type: fix
Change-Id: Ib29ba540a6e1d714e7e470f4c7518e3d266fe7ca
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Type: refactor
Change-Id: Ic1c3e1f7987702cd88972acc34849dc1f585d5fe
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Improves fairness for sessions that are snd space or pacer constrained.
Change-Id: Ida5f523090f1dcbfb17bf5116bc7917747ac8593
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Add infra that allows transpors to enqueue pending buffers without the
need to build and manage their own pending frames. An important benefit
is the fact that buffer wire/tx ordering is ensured by session layer.
Change-Id: I764fd1693d610b321a1d0c84b648a314f14583db
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: fix
Connect ctrl message recently outgrew the maximum ctrl msg size, so
increase the limit. Also add static asserts for messages that could
potentially exceed the limit.
Change-Id: I0d3e32e0d4d67d7e222cff14ddba59a0c3fb8b00
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Allow session cli filtering based on thread index, transport protocol,
session state and range of session pool indices. For instance
show session thread 1 proto tcp state ready range 0 20 verbose
Shows the session ids for the first 20 tcp sessions in thread 1 that are
in ready state.
To avoid excessive output that could reasult in the worker barrier being
held by the main thread for long periods of time, the session cli will
only output:
- session ids (verbose == 1) for a maximum of 50 sessions / worker
- verbose > 1 details for a maximum of 10 sessions
Change-Id: I2cfb351b548e2e0a1d5b4345810be613e2917d17
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:refactor
Moves connect, disconnect, bind, unbind and app detach to message
queue from binary api. Simplifies app/vcl interaction with the session
layer since all session control messages are now handled over the mq.
Add/del segment messages require internal C api changes which affect all
builtin applications. They'll be moved in a different patch and might
not be back portable to 19.08.
Change-Id: I93f6d18e551b024effa75d47f5ff25f23ba8aff5
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
This can be used to forcefully close a session. It's only available to
builtin applications for now. Transports must support the reset api
otherwise normal close is used.
Change-Id: I5e6d681cbc4c8045385e293e0e9d86fa2bf45849
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Change-Id: I5e030b23943c012d8191ff657165055d33ec87a2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Control ack generation and retransmissions with session layer scheduler.
Change-Id: Iacdf9f84ab81f44851980aa45a83e75f29be2b7b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:refactor
Change-Id: Id796d0103e61e15c35a586d8cbd3d8916487b84d
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:feature
Change-Id: I67a52ee48963a66915e2ebd116626eb9c296a9a5
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: refactor
Change-Id: I24159e0a848f552b4e27acfb5fe6f2cd91b50a19
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: refactor
Change-Id: I97fa59a0ba0b6b7a98698926020ffffcf6ae6ba3
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Change-Id: I58e713661a38cecbfdebd4609292d9d12e880cd2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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This allows QUIC & TLS specific logic to be implemented, and meaningfull
IP/port to be returned when connection is overridden.
Change-Id: Id79c59fe4d7b16d36f0e96ad3e281c4026b5fe65
Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
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Problems Addressed:
- Contention of cursize by producer and consumer.
- Reduce the no of modulo operations.
Changes:
- Synchronization between producer and consumer changed from cursize
to head and tail indexes
Implications: reduces the usable size of fifo by 1.
- Using weaker memory ordering C++11 atomics to access head and tail
based on producer and consumer role.
- Head and tail indexes are unsigned 32 bit integers. Additions and
subtraction on them are implicit 32 bit Modulo operation.
- Adding weaker memory ordering variants of max_enq, max_deq, is_empty
and is_full Using them appropriately in all places.
Perfomance improvement (iperf3 via Hoststack):
iperf3 Server: Marvell ThunderX2(AArch64) - iperf3 Client: Skylake(x86)
~6%(256 rxd/txd) - ~11%(2048 rxd/txd)
Change-Id: I1d484e000e437430fdd5a819657d1c6b62443018
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
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- Avoid doing cc in closing states.
- Rest connections closed with unread data
Change-Id: I97d46b0459f03ea5439eeb0f233b6c17d3e06dfd
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Currently supports on single stream exposed through standard internal APIs
Based on libquicly & picotls by h2o
Change-Id: I7bc1ec0e399d1fb02bfd1da91aa7410076d08d14
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Change-Id: I4a119937842eb188f5e5a7706cbe70e91ae4def8
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- use flag instead of enqueue_epoch for enqueueing rx events.
- use flag for proxy sessions
Change-Id: Iec3eee55a68d02536ece6329348a3369c7c7412e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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