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2020-07-16misc: add callback hooks and refactor pmcTom Seidenberg1-0/+4
Callbacks for monitoring and performance measurement: - Add new callback list type, with context - Add callbacks for API, CLI, and barrier sync - Modify node dispatch callback to pass plugin-specific context - Modify perfmon plugin to keep PMC samples local to the plugin - Include process nodes in dispatch callback - Pass dispatch function return value to callback Type: refactor Signed-off-by: Tom Seidenberg <tseidenb@cisco.com> Change-Id: I28b06c58490611e08d76ff5b01b2347ba2109b22
2020-07-01vlib: wake up workers if interrupts are postedBenoît Ganne1-0/+1
Type: fix Change-Id: If8dbbcb46193fd057fe8d704058609a3a8787d6c Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-06-16vlib: address sanitizer support for stack switch, enable clangDamjan Marion1-6/+53
Type: improvement Change-Id: I81df4b61d1f0b8c1df77c1ee9bebcb491e155b69 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-06-03vlib: improve node interrupt handlingDamjan Marion1-4/+26
- add ability to pass data together with interrupt - avoid locking for local interrupts (same thread) Type: improvement Change-Id: I73a2ab2e716bb887a1f02c87788ae83e329f9b40 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-07-18vlib: convert frame_index into real pointersAndreas Schultz1-32/+2
The fast path almost always has to deal with the real pointers. Deriving the frame pointer from a frame_index requires a load of the 32bit frame_index from memory, another 64bit load of the heap base pointer and some calculations. Lets store the full pointer instead and do a single 64bit load only. This helps avoiding problems when the heap is grown and frames are allocated below vm->heap_aligned_base. Type: refactor Change-Id: Ifa6e6e984aafe1e2755bff80f0a4dfcddee3623c Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com> Signed-off-by: Dave Barach <dave@barachs.net>
2019-05-29Break out the broom for some cleanup workDave Barach1-0/+10
Maintain the MAINTAINERS file. Removed src/plugins/*.am listings. Added a couple of plugins. Add vlib_process_create (vlib_main_t *vm, char *name, vlib_node_function_t *f, u32 log2_n_stack_bytes); /** @brief Create a vlib process * @param vm &vlib_global_main * @param f the process node function * @param log2_n_stack_bytes size of the process stack, defaults to 16K * @return newly-create node index * @warning call only on the main thread. Barrier sync required. */ This function makes it easy to spin up periodic processes when features are enabled for the first time. That coding pattern is highly recommended. Update the emacs-lisp plugin generator to use vlib_process_create, instead of generating static periodic process nodes. Change-Id: Icda33e93b9034779d3a3e228cd1110af14b058a5 Signed-off-by: Dave Barach <dave@barachs.net>
2019-02-22Add no-append flag to vlib_frame_tDamjan Marion1-0/+6
Change-Id: I01c4f5755d579282773ac227b0bc24f8ddbb2bd1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-1/+2
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-13vlib rename vlib_frame_args(...) to vlib_frame_scalar_args(..)Damjan Marion1-4/+1
Typically we have scalar_size == 0, so it doesn't matter but vlib_frame_args was providing pointer to scalar frame data, not vector data. To avoid future confusion function is renamed to vlib_frame_scalar_args(...) Change-Id: I48b75523b46d487feea24f3f3cb10c528dde516f Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-1/+1
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-09-14vlib: introduce user flags in vlib_frame_tDamjan Marion1-1/+1
Those flags have local significance and they can be used for sending hints to the next node. Change-Id: Ic2596ee81c64cd16f96344365370e8fcdc465354 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-08-03vlib: avoid double process dispatchFlorin Coras1-1/+9
Change-Id: I46467b1f149be9dfbd00e3ea6d60681d19acf235 Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-07-18Add config option to use dlmalloc instead of mheapDave Barach1-2/+2
Configure w/ --enable-dlmalloc, see .../build-data/platforms/vpp.mk src/vppinfra/dlmalloc.[ch] are slightly modified versions of the well-known Doug Lea malloc. Main advantage: dlmalloc mspaces have no inherent size limit. Change-Id: I19b3f43f3c65bcfb82c1a265a97922d01912446e Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-13Stat segment / client: show run" works nowDave Barach1-2/+4
Seems to have minimal-to-zero performance consequences. Data appears accurate: result match the debug CLI output. Checked at low rates, 27 MPPS sprayed across two worker threads. Change-Id: I09ede5150b88a91547feeee448a2854997613004 Signed-off-by: Dave Barach <dave@barachs.net>
2018-02-05Fix ip4/6_reass_main.ip4/6_reass_expire_node_idx used before setDave Barach1-0/+2
Add an ASSERT to vlib_process_signal_event_helper to catch future instances of passing node_index = 0 to vlib_process_signal_event(). Change-Id: Iec896fc7c3917feb2fd3198cea42851ba88e64e5 Signed-off-by: Dave Barach <dave@barachs.net>
2018-01-09api: refactor vlibmemoryFlorin Coras1-0/+6
- separate client/server code for both memory and socket apis - separate memory api code from generic vlib api code - move unix_shared_memory_fifo to svm and rename to svm_fifo_t - overall declutter Change-Id: I90cdd98ff74d0787d58825b914b0f1eafcfa4dc2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-09-26Add thread-safe event signaller, use RPC where requiredDave Barach1-0/+23
Update ping code to use the new function Change-Id: Ieb753b23f8402cbe5667c22747896784c8ece937 Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net>
2017-09-20Fix DHCP client so it works for worker threadsJohn Lo1-0/+3
Fix dhcp_client_for_us() function to utilize rpc_call_main_thread to call vlib_process_signal_event() to ensure proper handling irrespective of it being called in main thread or worker thread. Added ASSERT to vlib_process_sinal.. path to make sure it is called in main thread. Change-Id: I4109cc049d8e4225d896ce492ce201011dc9c911 Signed-off-by: John Lo <loj@cisco.com>
2017-08-25TCP horizontal scalingDave Barach1-9/+6
- Remove frame handoff support machinery. We haven't used it in a long time. - Configuration support for the local endpoints bihash table - Drop lookup failure packets in tcp46_syn_sent Change-Id: Icd51e6785f74661c741e76fac23d21c4cc998d17 Signed-off-by: Dave Barach <dave@barachs.net>
2017-08-02Fix tcp tx buffer allocationFlorin Coras1-7/+9
- Make tcp output buffer allocation macro an inline function - Use per ip version per thread tx frames for retransmits and timer events - Fix / parameterize tcp data structure preallocation - Add a couple of gdb-callable show commands - Fix local endpoint cleanup Change-Id: I67b47b7570aa14cb4634b6fd93c57cd2eacbfa29 Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net>
2017-06-30VPP debug image with worker threads hit assert on adding IP route with ↵Neale Ranns1-0/+3
traffic (VPP-892) When stacking DPOs the VLIB graph is also updated to add the edge between the nodes, if this edge does not yet exist. This addition should be done with the workers stopped. Change-Id: I327e4d7d26f0b23eb280f17e4619ff2093ff7940 Signed-off-by: Neale Ranns <nranns@cisco.com> (cherry picked from commit c02bd03ddf5eec9e9c79811360685f13e4ba8ee1)
2017-06-28switch vlib process model to tw_timer_template timer implDave Barach1-13/+15
Change-Id: I36bb47faea55a6fea7af7ee58d87d8f6dd28f93d Signed-off-by: Dave Barach <dave@barachs.net>
2017-04-10Common device-input interrupt infraDamjan Marion1-0/+14
Change-Id: I23b588eb56a3f5690158449a1f9bc8053cd3d251 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion1-4/+4
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-04vlib: make vlib_node_interrupt_pending(...) thread safeDamjan Marion1-0/+2
Change-Id: I24577bd32ae23fbe8515cc8d960eab5448ce3b5c Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-09vlib_mains == 0 special cases be goneDave Barach1-2/+2
Clean up spurious binary API client link dependency on libvlib.so, which managed to hide behind vlib_mains == 0 checks reached by VLIB_xxx_FUNCTION macros. Change-Id: I5df1f8ab07dca1944250e643ccf06e60a8462325 Signed-off-by: Dave Barach <dave@barachs.net>
2017-02-05fix some 'stored but never read' warnings raised by clangGabriel Ganne1-3/+2
found by `scan-build make plugins-release` Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com> Change-Id: I52048e3a8ae3fb85eb3d91f6a5e15216dd7b9baa
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+1130
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>