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2019-11-10tcp: avoid retransmits post resetFlorin Coras1-0/+3
Type: fix Change-Id: Ib6a8f5ca597389700e5746f089a5cec7eee65ab5 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-11-05session tcp: refactor pacer timeFlorin Coras1-4/+2
Type: refactor Change-Id: Ic1c3e1f7987702cd88972acc34849dc1f585d5fe Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-10-30tcp: rx fifo size is u32Dave Wallace1-2/+18
- Limit cli input for rx fifo size to u32 Type: fix Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Change-Id: If5a8e0668acf5b0f369acf4f120e47a012bd1899
2019-10-11tcp: refactor flags into cfg and conn flagsFlorin Coras1-8/+38
Type: refactor Change-Id: Ib5e2ecf55732599e1322736e3662178c9da49c7d Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-10-10tcp: retry lost retransmitsFlorin Coras1-7/+17
Add heuristic that detects lost retransmitted segments and retries sending them. Type: feature Change-Id: I34d1bb16799e1993779222eb2bfad4b40704159e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-10-10tcp: fix tso not work in single buffer issueSimon Zhang1-1/+1
Type: fix Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com> Change-Id: Iddb6fd41812e8c97af58859ef43279cfc0f9d1df Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
2019-10-01session: fix use-after-freeBenoît Ganne1-1/+1
Make sure to reinitialize data before free-ing it. Type: fix Change-Id: I45727c456d0345204d4825ecdd9690c5ebeb5e94 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-09-25tcp: use sacks for timer based recoveryFlorin Coras1-21/+24
Type: feature If available, reuse sack scoreboard in timer triggered retransmit to minimize spurious retransmits. Additional changes/refactoring: - limited transmit updates - add sacked rxt count to scoreboard - prr pacing of fast retransmits - startup pacing updates - changed loss window to flight + mss Change-Id: I057de6a9d6401698bd1031d5cf5cfbb62f2bdf61 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-25session: fix cleanup in closing statesFlorin Coras1-0/+2
Type: fix Change-Id: Iccc283bb98d3bb459a711ec2b74d6a32ad12903b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-23tcp: fix unformat cwnd multiplierFlorin Coras1-16/+18
Type: fix Change-Id: Ife4e650cb8b16f84ca6f77ba7b1d17a0f452fc3f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-11tcp: handle sack renegingFlorin Coras1-3/+5
Type: feature Change-Id: I201155b1b92cf7e57310af726879dab039090582 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-10tcp: enable gso in tcp hoststackSimon Zhang1-0/+16
Type: feature Change-Id: If68d07fbe8c6f7fffd2f93c7e854367082927e4f Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
2019-09-04session: improve cliFlorin Coras1-0/+2
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>
2019-09-03tcp: send rwnd update only if wnd is large enoughFlorin Coras1-0/+4
Type: feature Change-Id: I3e97e05a31806afb6b2e84ecf05fb96d285db92e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-31tcp: fix rx min/max fifo size parsingFlorin Coras1-13/+14
Type: fix Change-Id: Iff4a13da654dbdf7f08bb6d0743b466a1e6be01b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-30tcp: improve mss computationFlorin Coras1-1/+43
Type: fix Use different mss for v4 and v6 packets. Change-Id: Ifcd322c1fd74f749a42bae671dd6cfed8c32b150 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-21tcp: add option for always on event loggingFlorin Coras1-13/+7
Type: feature Add option to always compile in debugging infra. Debug verbosity can be controlled via configuration updatable via cli. Compile time inclusion and configuration of event logging verbosity is still available in order to minimize event logging impact. Change-Id: I9d946efe9fa4204fdace1adb1d6588c97b5ae758 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-19session: add explicit reset apiFlorin Coras1-0/+13
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>
2019-08-19tcp: set cc_algo on connection allocFlorin Coras1-1/+15
Type: feature Change-Id: Ie00329b11e26cab5db64b9c006171d283854c8ef Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-19tcp: allow cc algos to set pacing rateFlorin Coras1-8/+2
Type: feature Change-Id: Ie7f0f5d2a476d401ede567e422abb953b2bb4a78 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-16tcp: fix cc algo name parsingFlorin Coras1-1/+1
Type: fix The initial config parser passed a pointer to the field algo id field in tcp main. Because the field is a u8 and it was interpreted as a uword, it ended up overwrting other tcp configuration fields. Change-Id: Ie9020051c8fca40e14cf42a9888daa87360e5038 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-14tcp: extend protocol configurationFlorin Coras1-47/+87
Type: feature Expose more configuration parameters and refactor some of the existing ones. Change-Id: If44c31ff77ce3d7e8da67d39a4ff61346bdf5ccc Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-08tcp: cleanup timersFlorin Coras1-53/+1
Type:refactor Change-Id: I37dbc8b55827d66c2578d6ab8b86ed7e18198aa6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-02tcp: add more connection statsFlorin Coras1-0/+24
Type:feature Change-Id: If02884d0f1f26bfe31ec609ea9611cb27b699868 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-26session tcp: handle rxt and acks as custom eventsFlorin Coras1-10/+1
Type: feature Control ack generation and retransmissions with session layer scheduler. Change-Id: Iacdf9f84ab81f44851980aa45a83e75f29be2b7b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-25session: add transport deleted stateFlorin Coras1-1/+0
Type: fix Distinguish between closed and deleted states to avoid deleting the session prior to the transport connection. Change-Id: Ia285ce94b26a70773f8c0ce9d2c73095d3e2a337 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-23tcp: generate closed notifications whenever tcp closesFlorin Coras1-1/+4
Type: fix This gives the session layer a chance to to cleanup events. Change-Id: I7499e94acf06340e2b19a1d91a4c61a63cd66c52 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-12session: add thread index to all formattersAloys Augustin1-0/+2
Add a thread_index argument to half-open and listener session formatters because QUIC can have listeners and half-open sessions in any thread. Change-Id: I1de60e35ece4c68ba8cfdd6b63f211bc620d687b Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Type: feature
2019-06-27tcp: Setup initial CWND as configuredVladimir Kropylev1-0/+4
Type: feature Change-Id: I7f476f4f81994c9c6cc2e8091de08adff4bcbc77 Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
2019-06-27session: Add transport vft protocol optionsNathan Skrzypczak1-2/+4
Type: refactor Change-Id: I4e0afc206e4871596c2ed8a6ca00914a379f1526 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2019-06-25tcp: delivery rate estimatorFlorin Coras1-0/+6
Type: feature First cut implementation with limited testing. The feature is not enabled by default and the expectation is that cc algorithms will enable it on demand. Change-Id: I92b70cb4dabcff0e9ccd1d725952c4880af394da Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-11tcp: allow registration of new cc algo typesFlorin Coras1-1/+9
Type: feature Change-Id: I83e21b508a19df1beb207d961c8f2b52347deca0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-07tcp: add cc cleanup functionFlorin Coras1-25/+33
Type: feature Change-Id: I54521078cf96e459d041c86297c6ca80045bf0a3 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-03ARP: add feature arcNeale Ranns1-8/+6
- arp-input, registered with the ethernet protocol dispatcher, performs basic checks and starts the arc - arp-reply; first feature on the arc replies to requests and learns from responses (no functional change) - arp-proxy; checks against the proxy DB arp-reply and arp-proxy are enabled when the interface is appropriately configured. Change-Id: I7d1bbabdb8c8b8187cac75e663daa4a5a7ce382a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-05tcp: do not delete session on establish popFlorin Coras1-14/+16
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: shorten wait in fin-wait-1 with fin rcvdFlorin Coras1-1/+2
Change-Id: Ifddc32ab3da0e691ac3df74ff26e19f6fa00fef7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-02tcp: improve rcv process ack processingFlorin Coras1-0/+9
- Avoid doing cc in closing states. - Rest connections closed with unread data Change-Id: I97d46b0459f03ea5439eeb0f233b6c17d3e06dfd Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-27tcp: add cc algo lookup tableFlorin Coras1-7/+14
Change-Id: Ie7be0136c182cdc35193e47dd3249153c2f8d65e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-23tcp: make default mtu configurableFlorin Coras1-1/+5
Change-Id: I56d8d8d67d5590e24c1ddb54b0c63a2cb03798e1 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-22tcp: improve handling of snd_nxtFlorin Coras1-2/+2
- 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>
2019-03-12tcp: 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>
2019-03-08session/tcp/vcl: fixes and optimizationsFlorin Coras1-7/+0
Change-Id: Idc7dfe743399dd8dee0f6b3ec83f194f3fca580b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-02session: cleanup/rename functionsFlorin Coras1-2/+2
- remove unused functions - rename old "stream" functions Change-Id: Icbb03daa9f9f1c58b5be5c38aa8a9cbcf9159b47 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-22tcp: keep snd sack block free listFlorin Coras1-0/+3
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 Coras1-1/+1
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>
2019-02-18tcp: harden for high scale scenariosFlorin Coras1-3/+5
- 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>
2019-02-09buffers: fix typoDamjan Marion1-1/+1
Change-Id: I4e836244409c98739a13092ee252542a2c5fe259 Signed-off-by: Damjan Marion <damarion@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 Coras1-3/+3
- 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>
2019-02-02session: improve show session cliFlorin Coras1-1/+5
Change-Id: If30cea80058752cedcc6ecc38e90bef8732c83d3 Signed-off-by: Florin Coras <fcoras@cisco.com>