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2019-09-23tcp: fix unformat cwnd multiplierFlorin Coras1-16/+18
Type: fix Change-Id: Ife4e650cb8b16f84ca6f77ba7b1d17a0f452fc3f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-20tcp: refactor congestion event handlingFlorin Coras1-40/+36
Type: refactor Minor cleanup to congestion event handling. Change-Id: I7179ff9e21c1853382ba814652c9024f3e5b8a37 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-18tcp: compute snd time for rate sampleFlorin Coras2-6/+11
Type: feature Change-Id: I6bd675dc28dbc34293e895911efe986844c0564f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-16tcp: use rate sample rtt in recovery if possibleFlorin Coras1-6/+14
If in recovery and rate samples are taken for burts that have not been retransmitted, use the rtt estimate. Type: feature Change-Id: I95028f492008457c959157aa4ee4c3435fa9c3f0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-12tcp: cleanup scoreboard after recoveryFlorin Coras1-0/+7
Type: fix When recovering from congestion, remove last hole in scoreboard if it covers all bytes sent above snd_congestion. Change-Id: I752accd4590cd9bf553c35a1bb40a38c308c04f5 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-11tcp: handle sack renegingFlorin Coras3-92/+126
Type: feature Change-Id: I201155b1b92cf7e57310af726879dab039090582 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-10tcp: enable gso in tcp hoststackSimon Zhang4-0/+83
Type: feature Change-Id: If68d07fbe8c6f7fffd2f93c7e854367082927e4f Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
2019-09-10tcp: validate connections in outputFlorin Coras1-9/+46
Type: feature This shouldn't happen unless connections are removed after buffers were enqueued to tcp-output and before tcp-output runs. For instance, packet is enqueued to tcp output and cleanup is called for connection. Change-Id: Ib7dd82ffa6cfb21ff5068aba010e0a3497eeea13 Signed-off-by: Florin Coras <fcoras@cisco.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>
2019-09-04tcp: cc algos handle cwnd on congestion signalFlorin Coras3-12/+11
Type: refactor Change-Id: I15b10a22d0d0b83075a0eef5ef8c09cf76989866 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-03tcp: send rwnd update only if wnd is large enoughFlorin Coras3-7/+15
Type: feature Change-Id: I3e97e05a31806afb6b2e84ecf05fb96d285db92e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-02ipsec ip tcp l2: multiarch nodes cannot be declared as staticDamjan Marion1-2/+2
Credits to ray.kinsella@intel.com who spotted the issue and identified root cause. Type: fix Change-Id: I4afe74c47769484309f6aebca2de56ad32c8041f Signed-off-by: Damjan Marion <damarion@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: force zero window on full rx fifoFlorin Coras1-1/+4
Type: feature Change-Id: I7c5684a9f88e56fd62d83a59c14c4e4a6f096b89 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-30tcp: improve mss computationFlorin Coras3-43/+48
Type: fix Use different mss for v4 and v6 packets. Change-Id: Ifcd322c1fd74f749a42bae671dd6cfed8c32b150 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-30tcp: track zero rwnd errorsFlorin Coras2-1/+9
Type: feature Distinguish between rcv window errors and errors after we advertised a zero rcv window, i.e., potential window probes. Change-Id: I6cb453c7aaae456c0a05a8328cfaa55eaca10bf7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-23tcp: fix byte tracker samples flushFlorin Coras1-0/+1
Type: fix Change-Id: I3b4cb8fc17387693d6ad6cdef004ca99cd56bc23 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-21tcp: add option for always on event loggingFlorin Coras6-184/+369
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>
2019-08-21tcp: default to debug disabledFlorin Coras1-1/+1
Type:fix Change-Id: Ib5c33f0bdb3a8b1c2585135fcc8c07b151e47df3 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-20tcp: forward conn resets through tcp-outputFlorin Coras1-32/+20
Type: refactor Change-Id: I5718853d89ebeae9d66be975a803a3674bec5986 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 Coras3-6/+19
Type: feature Change-Id: Ie00329b11e26cab5db64b9c006171d283854c8ef Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-19tcp: allow cc algos to set pacing rateFlorin Coras2-8/+15
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 Coras5-133/+195
Type: feature Expose more configuration parameters and refactor some of the existing ones. Change-Id: If44c31ff77ce3d7e8da67d39a4ff61346bdf5ccc Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-12tcp: handle fin+rst+syn in closing stateFlorin Coras1-0/+2
Type: fix Change-Id: I32d4d4a5de04e89087f4ab4a5c425eda572932a8 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-08tcp: cleanup timersFlorin Coras4-142/+98
Type:refactor Change-Id: I37dbc8b55827d66c2578d6ab8b86ed7e18198aa6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-08tcp: fix zero rwnd sent checkFlorin Coras1-1/+1
Type:fix Change-Id: I1e6f2cb28c1bf544cc3d060b11c8935f9edb0eed Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-02tcp: add more connection statsFlorin Coras4-6/+81
Type:feature Change-Id: If02884d0f1f26bfe31ec609ea9611cb27b699868 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-01tcp: honor snd_wnd in fast rxtFlorin Coras1-1/+4
Type:fix Change-Id: I2f4224a53360f533c086ebde6a3056e60431da87 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-26tcp: count resets sentFlorin Coras2-0/+7
Type:feature Change-Id: Ie1ab4b24af9c654d5e0ed94b7fa96ca195b01c56 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-26session tcp: handle rxt and acks as custom eventsFlorin Coras4-173/+138
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 Coras2-1/+6
Type: fix This gives the session layer a chance to to cleanup events. Change-Id: I7499e94acf06340e2b19a1d91a4c61a63cd66c52 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-17tcp: add node with no 6-tuple lookupVladimir Kropylev1-22/+96
Type: feature Add new node in TCP stack where TCP 6 tuple lookup is not required. In new node, packet metadata contains connection-index which can be used to retrieve the TCP connection. The new node will be used by proxy. Change-Id: I3aa0268946898912f4176d5c8c5903e06657479d Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
2019-07-15session: allow transports to generate closed notificationsFlorin Coras1-0/+2
In contrast to the closing notification, whereby a transport informs the session layer that is beginning the closing procedure, this allows transports to notify the session layer of the fact that the transport is "fully" closed, i.e., it expects no more data. Also: - adds app closed state for sessions - changes tcp to have it notify when an active close has finished Type: feature Change-Id: I13c738006c03f85015e05ab82843a33a69382aaf 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
2019-07-10tcp: improve rate estimateFlorin Coras2-9/+22
Type:feature - sample rtt estimation - report acked+sacked - report last lost bytes - use snd_una == snd_nxt to detect 0 bytes in flight Change-Id: I83181261fdb375c7e33d24b7a82343561e6a905f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-09tcp: track last lost bytes in sack sbFlorin Coras2-3/+10
Type:feature Change-Id: I687809ebcc759cec8cb1d5c3b2b7e6bc995a7985 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-05tcp: timestamp adjustmentVladimir Kropylev3-3/+14
Type: feature Change-Id: Icb3c574100cde95ab5be4923c8739889cf7e48c6 Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
2019-07-05tcp: add cc algo start tx eventFlorin Coras2-0/+16
Type: feature Notify cc algos that new data is sent on a connection that was apparently idle. Change-Id: I892e5e9bb5b88d791265ffbbefce6f9694d01970 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-05tcp: add cc algo undo recovery notificationFlorin Coras2-18/+23
Type:feature Change-Id: Iedefe87555f0a0033abed8569bc2995c8f523d7e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-05tcp: add loss signal to cc algoFlorin Coras5-26/+62
Type:feature Change-Id: Ibe1a4c555b55fb929d55b02599aaf099ed522cdf Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-28tcp: reject out-of-order finsFlorin Coras1-0/+4
Type:fix Change-Id: Iab2c308739f7733dbf70953e0ea87dcc404c60da Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-28tcp: fix close-waiting check for outstanding tx dataFlorin Coras1-1/+2
Type: fix Change-Id: I9e0e1bb933c38b17ac9fb8bf11b81e2fed021bf8 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-27tcp: Setup initial CWND as configuredVladimir Kropylev2-0/+11
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: window update ackVladimir Kropylev2-0/+33
Type: feature Provide interface for sending Window Update ACK, ensuring it will be sent only once, if RWND became non-zero, after zero RWND has been advertised before. Change-Id: I7f0d8af76d7763208625df68ab4ac3727fdaf449 Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
2019-06-25tcp: delivery rate estimatorFlorin Coras7-28/+760
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>
2019-06-21tcp: add option to pass opaque to next nodeFlorin Coras2-2/+7
Type:feature Change-Id: I0b72954a6ae6a05abe0761cb4f227072863f127b Signed-off-by: Florin Coras <fcoras@cisco.com>