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2021-01-08l2: Separating scan-delay and learn-limit into a separate API from ↵Jerome Tollet1-0/+30
want_l2_macs_events Type: feature Signed-off-by: Jerome Tollet <jtollet@cisco.com> Change-Id: I6de6dae7da4ec1001e2811975a9b67acfc1a148c
2021-01-06l2: add per bridge domain learn limitJerome Tollet1-9/+46
Type: feature Signed-off-by: Jerome Tollet <jtollet@cisco.com> Change-Id: I57ed6699050445d9c9aec98eff3aab56735aca54 Signed-off-by: Jerome Tollet <jtollet@cisco.com>
2020-10-12l2: mark l2 fib uninitialized after clearingMatthew Smith1-0/+2
Type: fix After clearing the l2fib with 'vppctl clear l2fib', a SEGV occurs the next time a MAC address is learned. In l2fib_clear_table(), the l2fib bihash is freed and then l2fib_table_init() is called to reinitialize it. l2fib_table_init() will not do anything if l2fib_main.mac_table_initialized is set to 1. Reset the value of l2fib_main.mac_table_initialized to 0 before calling l2fib_table_init(). Change-Id: I87f1a3f9a46c951f36c1c0a5ab795b0ec08c81a8 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2020-10-08l2: input performanceNeale Ranns1-13/+31
Type: improvement - cache the values form the BD on the input config to avoid loading - avoid the short write long read on the sequence number - use vlib_buffer_enqueue_to_next Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I33442b9104b457e4c638d26e9ad3bc965687a0bc
2020-10-07misc: Purge unused pg includesNeale Ranns1-1/+0
Type: style Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I26a19e42076e031ec5399d5ca05cb49fd6fbe1cd
2020-09-14l2: allocate l2fib only when neededDamjan Marion1-8/+70
Currently l2 fib allocates 512MB hash table unconditionally on startup. This patch postpones table creation up to the point where first interface is put into l2 mode or mac entry is added. In addition it reduces default table size to 128MB and increases number of buckets 4 times. This default setting should be enough to keep 1M mac entries. Also, new startup.conf section is added which allows user to change memory and bucket size. .i.e: l2fib { table-size 512M num-buckets 524288 } Type: improvement Change-Id: I2a29209aa3545181f0087544c97a54d8157b6ec5 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-04-21vppinfra: bihash improvementsDave Barach1-6/+7
Template instances can allocate BIHASH_KVP_PER_PAGE data records tangent to the bucket, to remove a dependent read / prefetch. Template instances can ask for immediate memory allocation, to avoid several branches in the lookup path. Clean up l2 fib, gpb plugin codes: use clib_bihash_get_bucket(...) Use hugepages for bihash allocation arenas Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Damjan Marion <damarion@cisco.com> Change-Id: I92fc11bc58e48d84e2d61f44580916dd1c56361c
2020-03-09l2: API cleanupJakub Grajciar1-2/+7
Use consistent API types. Type: fix Change-Id: I7ac7cd00606101864fa3422e7b9ea2f1143665dd Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2020-01-08l2: fix MAC learn counter update on adding MAC entryJohn Lo1-1/+1
Type: fix Signed-off-by: John Lo <loj@cisco.com> Change-Id: I711432f589ee4a4527cf795526d3b4031999f71d
2019-12-16vppinfra: bihash walk cb typedef and continue/stop controlsNeale Ranns1-4/+8
Type: feature Change-Id: I28f7a658be3f3beec9ea32635b60d1d3a10d9b06 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-23api: binary api cleanupDave Barach1-2/+3
Multiple API message handlers call vnet_get_sup_hw_interface(...) without checking the inbound sw_if_index. This can cause a pool_elt_at_index ASSERT in a debug image, and major disorder in a production image. Given that a number of places are coded as follows, add an "api_visible_or_null" variant of vnet_get_sup_hw_interface, which returns NULL given an invalid sw_if_index, or a hidden sw interface: - hw = vnet_get_sup_hw_interface (vnm, sw_if_index); + hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index); if (hw == NULL || memif_device_class.index != hw->dev_class_index) return clib_error_return (0, "not a memif interface"); Rename two existing xxx_safe functions -> xxx_or_null to make it obvious what they return. Type: fix Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697 Signed-off-by: Dave Barach <dave@barachs.net>
2019-07-09vppinfra: allocate bihash virtual space on demandDave Barach1-0/+4
Reduces the vpp image virtual size by multiple gigabytes Add a "show bihash" command which displays configured and current virtual space in use by bihash tables. Modify the .py test framework to call "show bihash" on test tear-down Type: refactor Change-Id: Ifc1b7e2c43d29bbef645f6802fa29ff8ef09940c Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-7/+8
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-24L2-fwd trace show the lookup resultNeale Ranns1-0/+21
Change-Id: I09cf6ee7b4874d71f293f8f1a426d3a5e9651749 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-1/+1
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-09-24Trivial: Clean up some typos.Paul Vinciguerra1-3/+3
Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-09-08L2 BVI/FIB: Update L2 FIB table when BVI's MAC changesNeale Ranns1-2/+2
also some moving of l2 headers to reduce dependencies Change-Id: I7a700a411a91451ef13fd65f9c90de2432b793bb Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-09-07L2-FIB: replace bit-fields with flagsNeale Ranns1-32/+31
Change-Id: Ic31da442a0e0477569d53b4a72627bbb25e93365 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-08-10Use the bihash walk functionNeale Ranns1-126/+130
... rather than re-implementing the loop Change-Id: I20bede8403c804cbec654db9b7020a4d01e5bc18 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-08-07Fix dangling reference in l2fib_scan(...)Dave Barach1-0/+8
Deleting a bihash kvp frees the bucket's backing storage when the bucket reference count reaches zero. l2fib_scan MUST check for that condition, and stop scanning the bucket if it occurs. One of the L2 FIB extended "make test" vectors caused this issue 100% of the time. Change-Id: I250bcc4c1518e16042120fbc4032227a759a602e Signed-off-by: Dave Barach <dave@barachs.net>
2018-05-31Improve L2FIB delete entry handling and "show l2fib" CLI optionsJohn Lo1-51/+64
Improve deletion of L2FIB MAC entry using l2fib_add_del API. If sw_if_index param specified in th API is non-zero, check that its value match that of the MAC entry to proceed with deletion. Improve "show l2fib" CLI to allow display of all entries, learned entries only, or added ovia CLI/API entries only. For added entry, show "no" under the age column to indicate entry does not age. Change-Id: I0bd2582c2b6bac268e551e4f8ca6dab2be4400ad Signed-off-by: John Lo <loj@cisco.com>
2018-05-11Periodic scan and probe of IP neighbors to maintain neighbor poolsJohn Lo1-5/+2
Scan IPv4 and IPv6 neigbor pool entries once a minute to keep them up to date. The neighbor of an entry is probed if its time-stamp is older than 1 minute. If the neighbor respond, its time-stamp will be updated. If there is no response from a neighbor, its entry will be deleted when the time-stamp of the entry become more than 4 minutes old. Static neighbor entries are not probed nor deleted. Implemented CLI and API to enable and disable priodic scan of IPv4, IPv6 or both types of IP neighbors. CLI is "ip scan-neighbor" and API is "ip_scan_neighbor_enable_disable". Other IP neighbor scan parameters can also be changed from their defaults via the CLI/API. Change-Id: Id1a0a934ace15d03db845aa698bcbb9cdabebfcd Signed-off-by: John Lo <loj@cisco.com>
2018-03-14Improve l2_macs_events API to provide MAC move informationJohn Lo1-3/+5
Change mac_entry layout in l2_macs_event API message so the MAC entry can be either add, delete or move where the sw_if_index of an existing MAC entry changed. Also added a 8-bit flags field in mac_entry for any future expansion. Change-Id: I3bf9e1cf2556f2938202025a5d0772c2ce2fc99f Signed-off-by: John Lo <loj@cisco.com>
2018-01-11api: fix handlers that explicitly depend on svm queueFlorin Coras1-8/+8
Fixes the remainig apis that explicitly check svm queue length. Change-Id: I6055c7c50050affee3098e162e15fb12c205e5db Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-01-09api: refactor vlibmemoryFlorin Coras1-1/+1
- 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>
2017-10-31Fix "l2fib add" CLI to allow adding of filter MAC entriesJohn Lo1-25/+17
When adding a filter MAC entry, the default sw_if_index of -1 was incorrectly validated and rejected. Change-Id: Id7f122b6269ea7c299a4335b05b748afaf01383c Signed-off-by: John Lo <loj@cisco.com>
2017-10-31l2fib: MAC: Fix uint64 to u8 byte arrayMohsin Kazmi1-35/+31
As per proposal on the mailing list, this patch fixes the represntation of MAC address in VPP API calls for · L2fib_add_del · L2_fib_table_details Change-Id: I31e17efd1a6314cded69666e693cb8fc33158d02 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2017-10-03Repair vlib API socket serverDave Barach1-5/+7
- Teach vpp_api_test to send/receive API messages over sockets - Add memfd-based shared memory - Add api messages to create memfd-based shared memory segments - vpp_api_test supports both socket and shared memory segment connections - vpp_api_test pivot from socket to shared memory API messaging - add socket client support to libvlibclient.so - dead client reaper sends ping messages, container-friendly - dead client reaper falls back to kill (<pid>, 0) live checking if e.g. a python app goes silent for tens of seconds - handle ping messages in python client support code - teach show api ring about pairwise shared-memory segments - fix ip probing of already resolved destinations (VPP-998) We'll need this work to implement proper host-stack client isolation Change-Id: Ic23b65f75c854d0393d9a2e9d6b122a9551be769 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-10-02L2-FIB:add mac learn events testEyal Bari1-56/+49
fixes an issue where events were not sent if BD doesn't enable mac aging Change-Id: Iddc53cb5c45e560633e6c5cff2731dccfc70ad5b Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-08-22Increase default MAC learn limit and check it in learn-update pathJohn Lo1-1/+1
1. Increase default MAC learn limit from 1M to 8M entries. 2. Check MAC learn limit in MAC learning update path. 3. Allow disable of want_l2_macs_events to set MAC learn limit 4. Other minor cleanups Change-Id: I62438440937b5fa455e16f4a2e4d910277753395 Signed-off-by: John Lo <loj@cisco.com>
2017-08-03Add support for API client to receive L2 MAC eventsJohn Lo1-100/+294
Added APIs want_l2_macs_events and l2_macs_event to allow an API client to receive notification events from VPP for MAC learned or aged in L2FIB. Only one API client is allowed for L2 MAC events. The want_l2_macs_events API allow caller to specify MAC learn limit, event scan delay and max number of MACs that can be included in a event message. These parameters should be choosen properly as to not have too many MAC events sent by VPP and overwhelm the API share memory. They can all be left as 0's so VPP will setup reasonable defaults which are: 1000 learn limit, 100 msec scan delay and 100 MACs per event message. If want_l2_macs_events is never called, VPP learning and aging should behave as before except that MAC entries provisioned by API or CLI will not be aged, even if it is not set as static_mac. These non static MACs, however, can be overwritten by MAC learning on a MAC move as a leared MAC. Only learned MACs are subject to aging. Change-Id: Ia3757a80cf8adb2811a089d2eafbd6439461285c Signed-off-by: John Lo <loj@cisco.com>
2017-07-19Add a bihash prefetchable bucket-level cacheDave Barach1-4/+4
According to Maciek, the easiest way to leverage the csit "performance trend" job is to actually merge the patch once verified. Manual testing indicates that the patch improves l2 path performance. Other use-cases are TBD. It's possible that we'll need to back out the patch depending on what happens. Change-Id: Ic0a0363de35ef9be953ad7709c57c3936b73fd5a Signed-off-by: Dave Barach <dave@barachs.net>
2017-07-13Fix crash with worker threads on 4K VXLAN/BD setup (VPP-907)John Lo1-0/+7
Cleanup mapping of interface output node for the l2-output node when interface is configured to L2 or L3 modes. The mapping is now always done in the main thread as part of API/CLI processing, instead of initiate mapping in the forwarding path which can be in the worker threads. Change-Id: Ia789493e7d9f5c76d68edfaf34db43f3e3f53506 Signed-off-by: John Lo <loj@cisco.com> (cherry picked from commit bea5ebf205e0bec922bf26c6c1a6a9392b4cad67)
2017-06-27L2-LEARN:fix l2fib entry seq num not updated on hit (VPP-888)Eyal Bari1-5/+5
fixed instability in l2bd_multi_instnce test - sometimes failing with extra packets captured it appears l2-learn was not updating hit entries but rather a copy of them. if the ager did not have a chance to run before the test was running the learning cycle - entries were not updated with the packet's seq num - causing packets to flood when hitting the stale seq_num in l2-fwd - hence the extra packets fixed handling of filter entries revert workaround for instability in test Change-Id: I16d918e6310a5bf40bad5b7335b2140c2867cb71 Signed-off-by: Eyal Bari <ebari@cisco.com> (cherry picked from commit 25ff2ea3a31e422094f6d91eab46222a29a77c4b)
2017-06-19L2FWD:fix seq_num overwritten + validate l2fib entries when forwardingEyal Bari1-16/+3
l2_classify memeber table_index was overlaid over l2.l2fib_seq_num which over written when table_index gets initialized in l2_input_classify solved by overlaying both table_index and opaque_index as only one is used seperated l2fib seq num from l2_input configs for better handling of theoretical ABA issue where an entry for a deleted interface is considered valid by the ager because a different interface with same sw_if_index and seq_num was created before the ager got a chance to delete Change-Id: I7b0eeded971627406f1c80834d7e02c0ebe62136 Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-06-12L2FIB:fix crash in show with deleted subif entriesEyal Bari1-4/+7
after deleting a sub interface it's l2fib entries are left with a dangling sw_if_index (while waiting for the ager to delete them). changed "show l2fib" to reflect that state with "Deleted" as the interface name. added sleep in test_l2_fib as a workaround for packets still passing after flush will investigate... Change-Id: Id998d7d3c6a073ef5005c5f3009e1cfb7febf7db Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-05-08L2FIB:CLI/API to flush all non-static entriesEyal Bari1-65/+103
added CLI l2fib flush-mac all added API l2fib_flush_all flushes all non static l2fib entries on all valid BDs Change-Id: Ic963c88f4bed56308c03ab43106033132a0e87be Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-05-05Fix L2FIB learn counter and memory cleanup of mac_by_ip6 hash tableJohn Lo1-3/+5
Fix global_learn_count to be incremented or decremented by add and deletion of non-static MAC entries from L2FIB only. Without this fix, the counter may reach the threshold of 1M and stop MAC leanring even though number of MAC entries in L2FIB is less than the threshold. Cleanup indirect hash key memory used by mac_by_ip6 hash table on BD deletion. Change-Id: I13986c4e6304c7956122520dd3f83d6bb6e65a15 Signed-off-by: John Lo <loj@cisco.com>
2017-05-03L2FIB:flush interface learned macs on downEyal Bari1-2/+11
Change-Id: I80a723f55fcf2ecc3209a35e8297c88b45b1abfb Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-03-28Implement MAC Flush for BD or Interface from the L2FIBJohn Lo1-14/+174
Allow non-static MACs in the L2FIB which is associated with an interface or a bridge domain (BD) be flushed. MAC flush are initiated automatically when an interface is removed from a BD or when a BD is deleted. MAC flush can also be invoked manually via the following CLI: l2fib mac-flush interface <if-name> l2fib mac-flush bridge-domain <bd-id> Change-Id: Ie33243622834810a765f48ebcd22bdb8e8fc87a4 Signed-off-by: John Lo <loj@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+857
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>