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2019-04-16svm_fifo rework to avoid contention on cursizeSirshak Das1-1/+1
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>
2019-04-08host stack: update stale copyrightFlorin Coras9-9/+9
Change-Id: I33cd6e44d126c73c1f4c16b2041ea607b4d7f39f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-05tcp: do not delete session on establish popFlorin Coras3-29/+34
Also: - force reset if wait close pops in fin-wait-1 with unsent data - adds more event logging. Change-Id: I4ddada046214fa71e17514cdec57b3026f84a283 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-04tcp: properly validate acks between snd_nxt and una_maxFlorin Coras1-2/+4
Change-Id: I37af3cb5fe3fe8556acbf8350f88663dca9ca8a9 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-04tcp: shorten wait in fin-wait-1 with fin rcvdFlorin Coras3-9/+18
Change-Id: Ifddc32ab3da0e691ac3df74ff26e19f6fa00fef7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-02tcp: improve rcv process ack processingFlorin Coras4-68/+79
- Avoid doing cc in closing states. - Rest connections closed with unread data Change-Id: I97d46b0459f03ea5439eeb0f233b6c17d3e06dfd Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-29tcp: remove sent rcv wnd 0 flagFlorin Coras3-13/+2
Change-Id: If6c672d1caa8884eb5d819311606a79a3de81200 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-29tcp: improve updating of rcv wndFlorin Coras1-10/+7
Change-Id: I0b8a311979d3ccd15f3854e7ac44ca9951dc6ce4 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-28tcp: remove unused buffer flagsFlorin Coras2-23/+0
Change-Id: I86e71f32dee3cc48f680e6432a96caef0a7f66a1 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-27tcp: add cc algo lookup tableFlorin Coras2-7/+17
Change-Id: Ie7be0136c182cdc35193e47dd3249153c2f8d65e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-23tcp: make default mtu configurableFlorin Coras3-7/+10
Change-Id: I56d8d8d67d5590e24c1ddb54b0c63a2cb03798e1 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-22tcp: improve handling of snd_nxtFlorin Coras4-124/+91
- avoid changing snd_nxt when doing fast retransmits - use snd_una_max only to keep track of the max seq number sent - simplify future ack testing Change-Id: I3580ad3aefe30128486c3375d0ac3f3f62c04c5e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-20tcp: disable cc elog debuggingFlorin Coras1-2/+2
Change-Id: Iffed748a15b9f01b985f9a6a9574a7bc42ab55aa Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-14tcp: drop anything but fins in TIME_WAITFlorin Coras1-0/+4
Change-Id: I8414c2ed8bda59504330aad5f1a80dfe08dd85de Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-13tcp: fix entering closing state while in fast recoveryFlorin Coras1-5/+15
Change-Id: I30470e8a1404632b0350056769338dc69a94c105 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-13tcp: avoid computing flags in push hdr inlineFlorin Coras1-26/+3
Change-Id: I579eef6d70b94b20e22b7b116ac63b2d7af49b22 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-12tcp: print congestion control algorithm in cliFlorin Coras1-11/+12
And shuffle some of the other connection variables. Change-Id: Ib5361d0a45537a3bd2421b8e4145ea0f0e525d91 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-08tcp: fix rcv_wnd computationFlorin Coras1-1/+1
Change-Id: I3cecffae2e30233d4725bd3eaf5ff4a8ff194fae Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-08session/tcp/vcl: fixes and optimizationsFlorin Coras3-9/+4
Change-Id: Idc7dfe743399dd8dee0f6b3ec83f194f3fca580b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-08tcp: fix window probes in fin-wait-1Florin Coras2-15/+10
Change-Id: Idf060f385f4d9b2f42fdab6a1d372727beb8b19e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-06tcp: migrate old MULTIARCH macros to VLIB_NODE_FNFilip Tehlar4-109/+77
Change-Id: Ifd9fa30eed343e2c5d40582b3e3aa589b070637d Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2019-03-02session: cleanup/rename functionsFlorin Coras4-28/+30
- remove unused functions - rename old "stream" functions Change-Id: Icbb03daa9f9f1c58b5be5c38aa8a9cbcf9159b47 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-01tcp: allow future acks if in windowFlorin Coras1-4/+9
Change-Id: I84ad1830b8db43f6031cf2876cd94f6a71216b83 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-22tcp: keep snd sack block free listFlorin Coras3-2/+7
Instead of constantly reallocating the new sack block list, keep the old one as a reusable free list. Change-Id: Iad79a72204f97b96352c1c6eea66c2839a35cfe6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-22tcp: send enough dupacks to cover all sack holesFlorin Coras4-14/+37
Make sure we send enough dupacks to cover all the holes created in the last frame received. Also make sure we send all the blocks, not just the first. Change-Id: I9597a34ac14473d1cc3ad07d65bc37043e3d0582 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-21tcp: drop outstanding data when entering closing stateFlorin Coras1-5/+13
Change-Id: I92a009b9630b0d882ea3c5c99aad88ed6f5109a0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-18session: move fifo allocation logic to app workerFlorin Coras1-1/+1
Change-Id: I1662ec4b5503cb64a8a86a2441842311d959b3a6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-18tcp: harden for high scale scenariosFlorin Coras5-29/+69
- Better handle buffer starvation scenarios - Handle case when both peers enter recovery due to packet loss. - Fix passive open establish cleanup Change-Id: I2f28baa2ff0383bb8f5f6d2452b49aa38ce69bce Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-18tcp: fix handling of retransmitted synsFlorin Coras2-16/+26
Change-Id: I88fdeb0ca56d3a5d9c0f36def13c6de8142f59f0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-09buffers: fix typoDamjan Marion1-1/+1
Change-Id: I4e836244409c98739a13092ee252542a2c5fe259 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-02-09session: refactor listen logicFlorin Coras1-1/+1
Make app-listener the handle for app listens. Consequently transport and local listen sessions are now associated to the app-listener. Change-Id: I9397a26d42cccb100970b6b4794c15bac2e11465 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-07tcp: fix fib_index for v6 ll packetsFlorin Coras1-0/+7
Change-Id: Ie69bdb9860d61f2c599c0c80b0ea80dfdfe178bd Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-07tcp: fix reset sending in syn-sentFlorin Coras3-6/+7
Change-Id: I468b1015bca5f95b162fb49e904aa4e4d38db75e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-06buffers: make buffer data size configurable from startup configDamjan Marion1-1/+1
Example: buffers { default data-size 1536 } Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-02-06transport: cleanupFlorin Coras2-11/+12
- 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>
2019-02-04session: cleanup part 1Florin Coras1-5/+5
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>
2019-02-02session: improve show session cliFlorin Coras1-1/+5
Change-Id: If30cea80058752cedcc6ecc38e90bef8732c83d3 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-02tcp: remove internal buffer cacheFlorin Coras2-81/+32
Change-Id: I3051d49aa9b9c38dcd8069ea1748f74ab20ac0f6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-20tcp: fix debugging without cc stats (VPP-1547)Florin Coras1-0/+1
Change-Id: I376856fcadce570bb555064435f5876eefb2befa Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-19buffers: remove free-list information from buffer metadataDamjan Marion1-1/+0
Change-Id: I6048c6a51efa826ac333f7d15919cb87dd766d74 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-18tcp: allow data in passive open ack (VPP-1545)Florin Coras1-2/+3
Change-Id: Iceb99d3f8b7029bd1b1e9ebafb1e0b3790c573e4 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-12session: generate wrong thread errors instead of crashingFlorin Coras2-6/+7
Change-Id: I7e59ae718d2722c49d42b22a0874e1645a191e89 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-04tcp: fix reset in syn-sentFlorin Coras1-2/+1
Change-Id: I6732adc06fbb3d4b427e671ddcfe6eabc08d4a1b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-03tcp: add more closing state arcsFlorin Coras1-0/+19
Change-Id: If6f4d6404753b2d6b96e17f5414079bcdb9edde8 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-03tcp: better randomize issFlorin Coras2-4/+41
Change-Id: I3638221e59024d6b7d82499d57e25b8e609f73cb Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-01buffers: remove unused codeDamjan Marion1-2/+1
Change-Id: If2bbfbc52994f5de0879763e0b7a7864498debb6 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-01vcl/ldp: add write msg function and fine tuningFlorin Coras2-4/+7
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>
2018-12-28session: free session after transport and app confirmFlorin Coras2-9/+9
In addition to that, a bit of refactoring. Change-Id: Iea1eabc2167bcdef185ec53bc09bae087c5398e6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-26tcp: add more last-ack arcsFlorin Coras1-0/+19
Change-Id: If538bb9d6fb489906099b727a7bfdb9d9af29402 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-26tcp: separate active and passive establish timersFlorin Coras5-94/+107
Change-Id: Ia2241e963cf45765d8d17c65eea781edbf74d4f9 Signed-off-by: Florin Coras <fcoras@cisco.com>