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To save space in the first cacheline following is changed:
- total_length_not_including_first_buffer moved to the 2nd cacheline.
This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and
VLIB_BUFFER_NEXT_PRESENT are both set.
- free_list_index is now stored in 4bits inside flags, which
allows up to 16 free lists. In case we need more we can store index
in the 2nd cachelin
Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681
Signed-off-by: Damjan Marion <damarion@cisco.com>
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after deleting a sub interface with IP4/IP6 address vpp crash
Change-Id: Ie768ca845b9e2394f61e2a8e9722a80a788746e7
Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
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Change-Id: Ib874ad93357500b2c425d75cf48834264b2183fc
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- 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>
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This should avoid random crashes due to reception of packets (multicast
in particular) before ip6 addresses are configured on the interfaces.
Change-Id: Ibcf1a5a2ae2fa75f8b57da1b2f09f32c081210d7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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- only build them for popular path-lists (where popular means more than 64 children)
the reason to have a map is to improve convergence speed for recursive prefixes - if there are only a few this technique is not needed
- only build them when there is at least one path that has recursive constraints, i.e. a path that can 'fail' in a PIC scenario.
- Use the MAPS in the switch path.
- PIC test cases for functionality (not convergence performance)
Change-Id: I70705444c8469d22b07ae34be82cfb6a01358e10
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ic07ec5d4c2560a414d5f4f7eb37e10faf591664a
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ic16bc10d0b2877b2afdf052615f9334f31b9519f
Signed-off-by: Neale Ranns <nranns@cisco.com>
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1 - interface-DPO
Used in the Data-plane to change a packet's input interface
2 - MPLS multicast FIB entry
Same as a unicast entry but it links to a replicate not a load-balance DPO
3 - Multicast MPLS tunnel
Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to .
4 - Resolve a path via a local label (of an mLDP LSP)
For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP.
5 - MPLS disposition path sets RPF-ID
For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet.
6 - RPF check with per-entry RPF-ID
An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface.
Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3
Signed-off-by: Neale Ranns <nranns@cisco.com>
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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>
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1 - make the default route non-special, i.e. like any other less specific route. Consequently, all buckets have a valid valid index of either a leaf or a ply. Checks for special indeices in the data-path can thus be removed.
2 - since all leaves are now 'real' i.e. they represent a real load-balance object, to tell if a ply slot is 'empty' requeirs chekcing that the prefix length of the leaf occupying the slot is slot than the minium value for that ply.
3 - when removing a leaf find the cover first, then recurse down the ply and replace the old leaf with the cover. This saves us a ply walk.
Change-Id: Idd523019e8bb1b6ef527b1f5279a5e24bcf18332
Signed-off-by: Neale Ranns <nranns@cisco.com>
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use a 32bit mask in the adjacency to AND with the IP address and OR into the rewrite.
Change-Id: I80b0f246c18fd74f3e43c5d49e25833412f34665
Signed-off-by: Neale Ranns <nranns@cisco.com>
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node_index memeber from the rewrite for space - this is only used for formtting
before:
ip4-rewrite * * * * 2.66e1 256.00
after:
ip4-rewrite * * * * 2.40e1 256.00
Change-Id: Ic397150727cad38811564777419ad6bd26b8a3a6
Signed-off-by: Neale Ranns <nranns@wasa-ucs-11.cisco.com>
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Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
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Change-Id: Ifdd2b204ecf7d855f1269c11224b9c825311904d
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ibe1734aeb94bc17cd8d8bc6f35ca7b780aaa9599
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
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Change-Id: I6d2afda991d771fb4a89fc3f6544f8e940a9b9f0
Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
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has an address configured (VPP-601)
Change-Id: I311fc264f73dd3b2b3ce9d7d1c33cd0515b36c4a
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I5e0057b36bc4221e688a27fc1c0f602f78132991
Signed-off-by: Neale Ranns <nranns@cisco.com>
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File vnet/fib/fib_urpf_list.h was included in vnet/fib/ip6_fib.h but was
exported to be installed in /usr/include/vnet. So out-of-tree builds
relying on an installed package was failing.
Fix is to inlcude fib_urpf_list.h in source file rather than including
it in header file.
Change-Id: Iae39c1d9417dbd31ee67fa1bd2d1915d5e813c73
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
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Refer to jira ticket for more details.
Change-Id: I6facb9ef8553a21464f9a2e612706f152badbb68
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
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Currently ip6 local check fails with error - source lookup miss if
route to source of packet is over a dpo object such as load balance -
recurssive route, tunnel adj - GRE, SR etc.
So unless packet source is of a directly connected neibhor or has
route with both interface and nexthop specified, it will be dropped.
Fix is to check urpf list and if at least one link exists in the list,
then allow packets to be processed, else drop.
Change-Id: Id426311bb63bab506754a79409c602fdb6d0f190
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
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Add vxlan-bypass feature which can be enabled on the IP6 underlay
interface which receive VXLAN packets to accelerate VXLAN decap
processing. The CLI to enable/disable it is:
set interface ip6 vxlan-bypass <interface> [del]
The vxlan-bypass feature is already supported on the IP4 underlay
interface. The CLI to enable/disable it is:
set interface ip vxlan-bypass <interface> [del]
Move vxlan-bypass API/CLI support code from decap.c to vxlan.c.
Also fixed two issues in the VXLAN decap path in the vxlan-input node:
1. Add verification of VXLAN packet FIB index with the encap-vrf-id
of the VXLAN tunnel.
2. Fix checking of VXLANoIPv6 packet mcast DIP against that of the
IP6 mcast VXLAN tunnel.
Change-Id: I2bad4074a468c48fbb8bb5ac64f6437190756ed2
Signed-off-by: John Lo <loj@cisco.com>
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- 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>
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Change-Id: I953b3888bbc6d8a5f53f684a5edc8742b382f323
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I0ccb0db73bcf4e2a282cabd4ebbe49599fa8ee7c
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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includes Fix for VPP-584 with API change to remove prefix length from LL programming
Change-Id: If860751c35e60255fb977f73bc33e8c2649e728e
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
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