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2019-05-16init / exit function orderingDave Barach1-6/+6
The vlib init function subsystem now supports a mix of procedural and formally-specified ordering constraints. We should eliminate procedural knowledge wherever possible. The following schemes are *roughly* equivalent: static clib_error_t *init_runs_first (vlib_main_t *vm) { clib_error_t *error; ... do some stuff... if ((error = vlib_call_init_function (init_runs_next))) return error; ... } VLIB_INIT_FUNCTION (init_runs_first); and static clib_error_t *init_runs_first (vlib_main_t *vm) { ... do some stuff... } VLIB_INIT_FUNCTION (init_runs_first) = { .runs_before = VLIB_INITS("init_runs_next"), }; The first form will [most likely] call "init_runs_next" on the spot. The second form means that "init_runs_first" runs before "init_runs_next," possibly much earlier in the sequence. Please DO NOT construct sets of init functions where A before B actually means A *right before* B. It's not necessary - simply combine A and B - and it leads to hugely annoying debugging exercises when trying to switch from ad-hoc procedural ordering constraints to formal ordering constraints. Change-Id: I5e4353503bf43b4acb11a45fb33c79a5ade8426c Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-2/+2
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das3-23/+25
This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Sirshak Das <sirshak.das@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com>
2018-05-13Improve ipfix template packet rewrite constructionDave Barach2-2/+6
Instead of repeatedly cutting, pasting, and hacking to create a new callback, use vnet_flow_rewrite_generic_callback(). Add three arguments to the flow rewrite callback: (in) pointer to an array of report elements, (in) length of array, (out) pointer to the stream index Change existing code prototypes. Code owners encouraged to evaluate whether they can use the generic callback or not, at leisure. /* ipfix field definitions for a particular report */ typedef struct { u32 info_element; u32 size; } ipfix_report_element_t; Best generated like so: _(sourceIPv4Address, 4) \ _(destinationIPv4Address, 4) \ _(sourceTransportPort, 2) \ _(destinationTransportPort, 2) \ _(protocolIdentifier, 1) \ _(flowStartMicroseconds, 8) \ _(flowEndMicroseconds, 8) static ipfix_report_element_t simple_report_elements[] = { foreach_simple_report_ipfix_element }; ... /* Set up the ipfix report */ memset (&a, 0, sizeof (a)); a.is_add = 1 /* to enable the report */ ; a.domain_id = 1 /* pick a domain ID */ ; a.src_port = UDP_DST_PORT_ipfix /* src port for reports */ ; a.rewrite_callback = vnet_flow_rewrite_generic_callback; a.report_elements = simple_report_elements; a.n_report_elements = ARRAY_LEN (simple_report_elements); a.stream_indexp = &jim->stream_index; a.flow_data_callback = simple_flow_data_callback; /* Create the report */ rv = vnet_flow_report_add_del (frm, &a, &template_id); if (rv) return rv; ... Change-Id: If6131e6821d3a37a29269c0d58040cdf18ff05e4 Signed-off-by: Dave Barach <dave@barachs.net>
2018-05-04Flow: Rename IPFIX exporter.Ole Troan1-1/+1
Change-Id: I9363cf54b73f7cfd8622af6f1cb250438ea0d3b6 Signed-off-by: Ole Troan <ot@cisco.com>
2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach1-0/+2
Object sizes must evenly divide alignment requests, or vice versa. Otherwise, only the first object will be aligned as requested. Three choices: add CLIB_CACHE_LINE_ALIGN_MARK(align_me) at the end of structures, manually pad to an even divisor or multiple of the alignment request, or use plain vectors/pools. static assert for enforcement. Change-Id: I41aa6ff1a58267301d32aaf4b9cd24678ac1c147 Signed-off-by: Dave Barach <dbarach@cisco.com>
2018-04-12Fixes for 'make UNATTENDED=yes CC=clang CXX=clang verify'Neale Ranns1-2/+2
Change-Id: I994649761fe2e66e12ae0e49a84fb1d0a966ddfb Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-05-30Flowprobe: Stateful flows and IPv6, L4 recordingOle Troan1-1/+2
Change-Id: I67839281623721bf42f0a918a53356143d9dc78a Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Pavel Kotucek <pkotucek@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com>
2017-03-22Initial draft of VPP changes to cleanup iOAM export.Vengada1-0/+1
This is needed for iOAM export for NSH. Change-Id: I702934b2cde8b1c07ec5c299d5fcd98dce94c62c Signed-off-by: Vengada <venggovi@cisco.com>
2017-03-15VPP changes to support iOAM over NSH-MD2. Separate trace dataVengada1-0/+1
structure definitions into two files to share code with NSH plugin (iOAM) Change-Id: I0192551f71678e4f814bc6a7d25200a1580f3033 Signed-off-by: Vengada <venggovi@cisco.com>
2017-03-14IOAM Coverity fixAkshayaNadahalli2-3/+8
Coverity IDs - 163911, 163910, 163909, 163908, 163905, 163904, 163896, 161957, 161955 Change-Id: Ida822fa45c6936240f61282e2280541d7e6427b3 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-07In-band OAM active probe (VPP-471)AkshayaNadahalli3-6/+115
Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-06ioam: manycast using iOAM and SR (VPP-628)Shwetha Bhandari2-5/+77
Change-Id: I6d2afda991d771fb4a89fc3f6544f8e940a9b9f0 Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
2017-02-14Fix coverity issues: ioamShwetha Bhandari2-3/+9
Change-Id: I0963760a7da95612d5cab19596919b369a4d0f8e Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
2017-02-13VPP-632 : InBand OAM AnalyserAkshayaNadahalli6-0/+1674
Refer to jira ticket for more details. Change-Id: I6facb9ef8553a21464f9a2e612706f152badbb68 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>