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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: I96e850fc15b79349abbb52d91c0314f255d635be
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: fix
Change-Id: I64e2082bd8ac5b0be21e10407dc29ba4c3f4cab3
Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
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Type: refactor
Change-Id: I651db44acdcb666a9c63e1037352cf88c68795b5
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: refactor
Change-Id: I4e0afc206e4871596c2ed8a6ca00914a379f1526
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Change-Id: Ib8cb19361c42e38e3f68d7147358378fff161eb1
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ie76c69641c8598164d0d00fd498018037258fd86
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I076c753e419bbb177d2d28609190715e9895b398
Signed-off-by: Florin Coras <fcoras@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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Change-Id: I77ad9eb4d4c7699397aa4be6a973ef37c60db4c5
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- disconnect sessions through session layer apis instead of directly
notifying the app worker.
- improve cli
- increase fifo sizes for tls app
Change-Id: I8a7d2865b3b00724e2a9da29fa4a906ea867da9b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Idc7dfe743399dd8dee0f6b3ec83f194f3fca580b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I675f7090fa6b2ffdfb4ee748df858bfb7e39ce5a
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Avoids derefrencing fifo pointers whose segments could have been
unmapped.
Change-Id: Ifb0b7399e424f145f3f94b769391a6f4e31bb4e6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Instead of allocating pairs of message queues per cut-thru session and
having the applications map them, this uses vpp as an io event message
switch.
Change-Id: I51db1c7564df479a7d1a3288342394251fd188bb
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- remove unused functions
- rename old "stream" functions
Change-Id: Icbb03daa9f9f1c58b5be5c38aa8a9cbcf9159b47
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I87bdf705341dd760f0be907a663aa64140977d39
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Switches local connects to cut-thru transport
- Removes local sessions as a separate session type
Change-Id: I997c6355d8c8e4f2110678f785b0f5d96bba47f7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Move local session to separate header and source files. First step to
refactoring local sessions.
Change-Id: I280fdfef20ba8a0977d15c1c8ce030ea2fb72dde
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I4e836244409c98739a13092ee252542a2c5fe259
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Example:
buffers {
default data-size 1536
}
Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660
Signed-off-by: Damjan Marion <damarion@cisco.com>
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- move transport specific types to transport_types
- add transport wrapper functions for interaction with transport
protocol vfts
Change-Id: I93f70d884585fc2f41c4a605e310c80e8a8972f2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Move app worker logic to app_worker.c
Change-Id: Ic5e5735b2884f006c064d023f491aa6888114810
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Rename core data structures. This will break compatibility for out of
tree builtin apps.
- stream_session_t to session_t
- server_rx/tx_fifo to rx/tx_fifo
- stream_session.h to session_types.h
- update copyright
Change-Id: I414097c6e28bcbea866fbf13b8773c7db3f49325
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I71ccb39c56962fe0160d3f4c83453e72d2dd3030
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I2ad54b20b96f10b009c3e651b2a2f885577ca5b6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ied476c417c8ba5b4d7c615125c36eecd9ca64fbc
Signed-off-by: Florin Coras <fcoras@cisco.com>
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In case of multi process apps, after forking, the parent may decide to
close part or all of the sessions it shares with the child. Because the
sessions have fifos allocated in the parent's segment manager, they must
be moved to the child's segment manager.
Change-Id: I85b4c8c8545005724023ee14043647719cef61dd
Signed-off-by: Florin Coras <fcoras@cisco.com>
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* u32/u64/uword mismatches
* pointer-to-int fixes
* printf formatting issues
* issues with incorrect "ULL" and related suffixes
* structure alignment and padding issues
Change-Id: I70b989007758755fe8211c074f651150680f60b4
Signed-off-by: David Johnson <davijoh3@cisco.com>
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Change-Id: If2bbfbc52994f5de0879763e0b7a7864498debb6
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Allows app to push data. Additionally, ensure reset/close replies are
not sent unless vcl closes the session.
Change-Id: Icbbf933cf57b55cfbcc7b802af0f83919a066f65
Signed-off-by: Florin Coras <fcoras@cisco.com>
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In addition to that, a bit of refactoring.
Change-Id: Iea1eabc2167bcdef185ec53bc09bae087c5398e6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Disconnect transport even if tx fifo is not empty and have transport
deal with the problem. In case of tcp, add timer to fin_wait_1. If it
expires and we're still in established state, cleanup but only after
waiting for session tx events to cleanup.
Change-Id: I45759a3c43dd096bb2c03daf5372416c30678d62
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ic35bbf55851087d70bfacc1eab4dea4285f98c86
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also further improves reset handling.
Change-Id: I6e517632f700f181761726b965134e0c217eb06d
Signed-off-by: Florin Coras <fcoras@cisco.com>
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For tcp this means that the last enqueued data goes out with a psh bit
set.
Change-Id: I29d357ecae6f02e748b59a7b799150ec73d14ba2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I45fd7538853f84c6c8bf804cc20acbc9601db3ba
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1
Signed-off-by: Dave Barach <dave@barachs.net>
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- update pacer once per burst
- better estimate initial rtt
- compute smoothed average for higher precision rtt estimate
Change-Id: I06d41a98784cdf861bedfbee2e7d0afc0d0154ef
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Instead of reusing buffers for acking, consume all buffers and program
output for (dup)ack generation. This implicitly fixes the drop counters
that were artificially inflated by both data and feedback traffic.
Moreover, the patch also significantly reduces the ack traffic as we now
only generate an ack per frame, unless duplicate acks need to be sent.
Because of the reduced feedback traffic, a sender's rx path and a
receiver's tx path are now significantly less loaded. In particular, a
sender can overwhelm a 40Gbps NIC and generate tx drop bursts for low
rtts. Consequently, tx pacing is now enforced by default.
Change-Id: I619c29a8945bf26c093f8f9e197e3c6d5d43868e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Allows sending of unsent data in fast recovery and consolidates logic in
tcp, instead of splitting it between tcp fast retransmit and tcp output
path called by the session layer.
Change-Id: I9b12cdf2aa2ac50b9f25e46856fed037163501fe
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also reset pacer on tcp retransmit timeout
Change-Id: I5a9edee4c00d1d169248d79587a9b10437c2bd87
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Force pacing for fast retransmit to avoid bursts of retransmitted
packets.
Change-Id: I2ff42c328899b36322c4de557b1f7d853dba8fe2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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If sessions cannot be handled during the current dispatch loop
iteration, ensure that they are first to be handled in the next.
Change-Id: Ifc6215900f8cfd530d4886b58641189f0ccf9bb7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I66ca0ddea872948507d078e405eb90f9f3a0e897
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Adds tx pacing infrastructure for transport protocols that want to use
it. Particularly useful for connections with non-negligible rtt and
constrained network throughput as it avoids large tx bursts that lead to
local interface tx or network drops.
By default the pacer is disabled. To enabled it for tcp, add tx-pacing
to tcp's startup conf. We are still slightly inefficient in the handling
of incoming packets in established state so the pacer slightly affect
maximum throughput in low lacency scenarios.
Change-Id: Id445b2ffcd64cce015f75b773f7d722faa0f7ca9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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