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path: root/src/vnet/fib/ip6_fib.c
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2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach1-1/+1
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>
2018-03-05IP6 link-local tableNeale Ranns1-67/+37
- IPv6 link local table is a per-SW interface array of IPv6 unicast FIBs - the per-interface ocst is sizeof(fib_table_t) which is small, w.r.t. the cost of an interface - FE80::/10 in the 'global' table points to a DPO that performs a lookup in the input interface's LL fib. Change-Id: Ice834b25ebeeacb2e929d7c864d7ec8c09918cbe Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-02-22bihash table size perf/scale improvementsDave Barach1-3/+11
Directly allocate and carve cache-line-aligned chunks of virtual memory. To a first approximation, bihash wasn't using clib_mem_free(...). We eliminate mheap object header/trailers, which improves space efficiency. We also eliminate the 4gb bihash table size limit. An 8_8 bihash w/ 100 million random entries uses 3.8 Gbytes. Change-Id: Icf925fdf99bce7d6ac407ac4edd30560b8f04808 Signed-off-by: Dave Barach <dave@barachs.net>
2018-01-18FIB Inherited SrouceNeale Ranns1-7/+80
forwarding provided by the source is pushed to all other entries it covers in the sub-tree Change-Id: I2a45222ef653358f55c2436de3e3c6353cfadba2 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-11-29Include allocated table memory in 'sh fib mem' outputNeale Ranns1-0/+12
DBGvpp# sh fib mem FIB memory Tables: SAFI Number Bytes IPv4 unicast 2 673066 IPv6 unicast 2 1054608 MPLS 1 4194312 IPv4 multicast 2 2322 IPv6 multicast 2 ??? Nodes: Name Size in-use /allocated totals Entry 96 20 / 20 1920/1920 Entry Source 32 0 / 0 0/0 Entry Path-Extensions 60 0 / 0 0/0 multicast-Entry 192 12 / 12 2304/2304 Path-list 40 28 / 28 1120/1120 uRPF-list 16 20 / 20 320/320 Path 72 28 / 28 2016/2016 Node-list elements 20 28 / 28 560/560 Node-list heads 8 30 / 30 240/240 Change-Id: I8c8f6f1c87502a40265bf4f302d0daef111a4a4e Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-09-13Add a name to the creation of an IP and MPLS tableNeale Ranns1-1/+1
Change-Id: I4b4648831551519b2ffb6f93255d28a4b8726c22 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-09-11FIB table add/delete APINeale Ranns1-11/+30
part 2; - this adds the code to create an IP and MPLS table via the API. - but the enforcement that the table must be created before it is used is still missing, this is so that CSIT can pass. Change-Id: Id124d884ade6cb7da947225200e3bb193454c555 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-07-19Add a bihash prefetchable bucket-level cacheDave Barach1-2/+2
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>
2017-05-24IPv6 Performance bugsNeale Ranns1-39/+0
- inline the FIB lookup function; this requires access to the bihash, so for files that use more than one type this casues problems. those files that include ip6_fib.h unnecessarily have been updated - better use of the feature arcs. ip6-lookup and interface-output are now sentinels (end-node-index in the cm speak) rather than enabled features. Change-Id: I9d1375fee63f7dbb2d327da6124d8e60b63367ec Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-05-24Leak locks and tables in the ClassifierNeale Ranns1-2/+3
Change-Id: Iae04c57bba87ab3665388eadd0805f75171636a5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-26IP Flow Hash Config fixesNeale Ranns1-10/+2
- the flow hash config is (and was) cached on the load-balance object so the fib_table_t struct is not used a switch time. Therefore changes to the table's flow hash config need to be propagated to all load-balances and hance all FIB entries in the table. - enable API for setting the IPv6 table flow hash config - use only the hash config in the fib_table_t object and not on the ipX_fib_t - add tests. Change-Id: Ib804c11162c6d4972c764957562c372f663e05d4 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-13Remove unsed parameter from fib_table_entry_special_add() (only used in FIB ↵Neale Ranns1-4/+2
tests). The DPO was incorrectly initialised with FIB_PROTO_MAX Change-Id: I962df9e162e4dfb6837a5ce79ea795d5ff2d7315 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-06BFD-FIB interactionsNeale Ranns1-6/+15
- single-hop BFD: attach a delegate to the appropriate adjacency - multi-hop BFD [not supported yet]: attach a delegate to the FIB entry. adjacency/fib_entry state tracks the BFD session state. when the state is down the object does not contribute forwarding hence and hence dependent objects will not use it. For example, if a route is ECMP via two adjacencies and one of them is BFD down, then only the other is used to forward (i.e. we don't drop half the traffic). Change-Id: I0ef53e20e73b067001a132cd0a3045408811a822 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-01MTRIE Optimisations 2Neale Ranns1-5/+13
1) 16-8-8 stride. Reduce trie depth walk traded with increased memory in the top PLY. 2) separate the vector of protocol-independent (PI) fib_table_t with the vector of protocol dependent (PD) FIBs. PD FIBs are large structures, we don't want to burn the memory for ech PD type 3) Go straight to the PD FIB in the data-path thus avoiding an indirection through, e.g., a PLY pool. Change-Id: I800d1ed0b2049040d5da95213f3ed6b12bdd78b7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-01-27IP Multicast FIB (mfib)Neale Ranns1-66/+51
- IPv[46] mfib tables with support for (*,G/m), (*,G) and (S,G) exact and longest prefix match - Replication represented via a new replicate DPO. - RPF configuration and data-plane checking - data-plane signals sent to listening control planes. The functions of multicast forwarding entries differ from their unicast conterparts, so we introduce a new mfib_table_t and mfib_entry_t objects. However, we re-use the fib_path_list to resolve and build the entry's output list. the fib_path_list provides the service to construct a replicate DPO for multicast. 'make tests' is added to with two new suites; TEST=mfib, this is invocation of the CLI command 'test mfib' which deals with many path add/remove, flag set/unset scenarios, TEST=ip-mcast, data-plane forwarding tests. Updated applications to use the new MIFB functions; - IPv6 NS/RA. - DHCPv6 unit tests for these are undated accordingly. Change-Id: I49ec37b01f1b170335a5697541c8fd30e6d3a961 Signed-off-by: Neale Ranns <nranns@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+784
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>