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2021-01-25svm: add custom q implementation for mqFlorin Coras1-1/+1
Add separate queue implementation for the message queue as it's custom tailored for fifo segments as opposed to binary api. Also move eventfds to the private data structures. Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I6df0c824ecd94c7904516373f92a9fffc6b04736
2020-12-29svm vcl: allow random offsets for fifo segments in appsFlorin Coras1-9/+5
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I1658a9c19d8eae4c9a42c0a111d4ad343b8eb8a4
2020-12-29svm: allow mq attachments at random offsetsFlorin Coras1-2/+42
Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic373cd2c11272da539eb4b0db27227f36f2f9688
2020-12-24svm: split fifo into private and shared structsFlorin Coras1-0/+45
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id8e77e8b2623be719fd43a95e181eaa5b7df2b6e
2020-10-20vcl: convert vep variables into flagsFlorin Coras1-2/+2
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ief017abc4879bc928746d9f5b9d2cfe04da89bd3
2020-10-19vcl: cleanup read and write readyFlorin Coras1-61/+45
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ib6afedf24c7bd7cc0d98bb324a83517030a05aa7
2020-10-15vcl: refactor session state enumFlorin Coras1-29/+32
Only allow one state instead of using flags. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I08ffccbf8c3f6e2f61533996bb36c799cbc931e7
2020-09-14vcl: add support for app socket apiFlorin Coras1-2/+20
To enable add "app-socket-api /path/to/socket" to vcl.conf. On vpp side, add use-app-socket-api to session stanza in startup.conf VPP allocates a socket per application namespace which it places in the app_ns_sockets subfolder of the run folder (default /var/run/vpp). The socket used implicitly selects the app namespace for the vcl app. Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ifc14b93dcbf6ef9bed1852d46cd069f4855b92ef
2020-09-14vcl: cleanup bapi and wrk registrationFlorin Coras1-103/+3
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I0391db5c3ad038265cb8ebf9de02925653e35959
2020-08-12vcl: support multi-threads with session migrationhanlin1-0/+2
Currently, mutlti-threads only support one dispatch thread and multiple worker threads, eventually only dispatch thread is a vcl worker and can interact with epoll. This patch will register all threads as vcl worker, and then each thread can interact with epoll now. Moreover, session migration also supported, such as socket created in thread A and used (bind, connect and etc.) in thread B. Type: feature Signed-off-by: hanlin <hanlin_wang@163.com> Change-Id: Iab0b43a33466968c1423d7d20faf1460c8589d91
2020-04-06vcl session: enforce full dgram reads/writesFlorin Coras1-0/+9
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I4a3861e31ca42faf0b59f8f09393fb10413bf3af
2020-04-01session udp: support connect on listenersFlorin Coras1-1/+19
Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I6aaaec20a2b6d4c6ddfbe659d9402acc1be2f7e2
2020-03-05session: API cleanupJakub Grajciar1-1/+1
Use consistent API types. Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: Ib752a3425c076eb53bc5255a48039cbb74b1fcce Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-12-23vcl: fix multi-thread app segment attachingFlorin Coras1-32/+27
Type: fix Guard segment attaching/deletion, not only the hash table CRD operations. Change-Id: Ic96e4adedffb73baf89e971438596927e6daf930 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-21session: move add/del segment msg to mqFlorin Coras1-0/+41
Type: refactor Change-Id: I32234173ebd69f80acb1afa4039fffbd19157f6d Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-12vcl: fix disconnect from binary apiFlorin Coras1-0/+8
Type: fix Change-Id: I4398d26879b5efd932fa1d9ae232aa918ec736d6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-10api: multiple connections per processDave Barach1-1/+1
Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I2272521d6e69edcd385ef684af6dd4eea5eaa953
2019-08-27session: move ctrl messages from bapi to mqFlorin Coras1-0/+6
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>
2019-08-02vcl: initialize worker thread index and heap map slotFlorin Coras1-0/+3
Type: fix Change-Id: I7e762b43a2a074dc81cb7b0f6446e315e63ecae5 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-16svm_fifo rework to avoid contention on cursizeSirshak Das1-5/+5
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>
2019-03-15vcl: cleanup debug messagesFlorin Coras1-7/+7
Change-Id: Ida3ecffc9a4d7a080ad63cd48fd4b5330b732ffb Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-06session: use vpp to switch io events for ct sessionsFlorin Coras1-73/+6
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>
2019-02-04session: cleanup part 1Florin Coras1-2/+2
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>
2019-01-29vls: multi-process and multi-threaded apps improvementsFlorin Coras1-0/+64
- More fine tuning for multi-process applications. - Experimental support for multi-thread apps. This is meant for app whose threads are not vcl workers and the sessions are shared between them. Change-Id: Ie07651da5f2cdcf39f5dead5431f50ad39cf3f74 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-18vcl: move forking logic to vlsFlorin Coras1-121/+15
Change-Id: I721542aca139d7908a4f917629856f82cae79962 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-17vcl/session: replicate events for shared sessionsFlorin Coras1-0/+11
Change-Id: I7fb5402d4a530b5f2ffd9bb5787632099f4b4189 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-05vcl/session: add api for changing session app workerFlorin Coras1-7/+15
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>
2018-12-04vcl: cleanup children that use _exit()Florin Coras1-11/+14
Change-Id: Ia56c2698adb0ea7811203844dc4db10e121fbc42 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-03vcl: handle worker process exitFlorin Coras1-5/+8
Change-Id: Ife05d25fd736ae3064f01e974e5aecc5b48de924 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-11-30vcl: wait for segments with segment handleFlorin Coras1-0/+30
Instead of waiting for notification from binary api. Change-Id: I5ecab857d6bcdbed62d6bb06709570c4cf6b19ea Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-11-29vcl: basic support for apps that forkFlorin Coras1-13/+151
- intercept fork and register a new worker with vpp - share sessions between parent and forked child - keep binary api state per worker Change-Id: Ib177517d661724fa042bd2d98d18e777056352a2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-09-14vcl: keep track of unexpected eventsFlorin Coras1-0/+2
If sessions are marked as blocking, events for other sessions received while waiting for the blocking sessions, are added to a pending list and processed later. Change-Id: Ia6c71006b1c2bcb78af708390da0cd436af397cc Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-09-08vcl: set worker pthread stop keyFlorin Coras1-1/+5
Otherwise the key destructor is not called on pthread_exit. Change-Id: I11e6b9683a926eecd3f40a44aab41924ff9c3101 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-09-08vcl: register workers in orderFlorin Coras1-4/+13
Change-Id: Ibc74e7f7587f8b17fc0dcec20cc4530b9dd4c3ca Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-08-30vcl: add support for multi-worker appsFlorin Coras1-35/+182
Add basic support for app registration of multiple workers. LDP does not work with multi-worker apps. Change-Id: I3fc421a2a591a077b275827463f874b261415a63 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-08-10vcl: support for eventfd mq signalingFlorin Coras1-0/+151
- support eventfd based mq signaling. Based on configuration, vcl epoll/select can use either condvars or epoll on mq eventfds. - add vcl support for memfd segments - vpp explicitly registers cut-through segments with apps/vcl - if using eventfd, make ldp allow one call to libc_epoll_create. Needed for the message queue epfd - update svm_queue_t to allow blocking calls with eventfd signaling. Change-Id: I064151ac370bbe29bb16c968bf4e3659c8286bea Signed-off-by: Florin Coras <fcoras@cisco.com>