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path: root/src/vnet/adj/rewrite.h
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2019-07-24fib: remove unused input parameterZhiyong Yang1-5/+2
Type: style Change-Id: I2a21076fffaeb5726be80356aaffc9fea3d95850 Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
2019-03-26Simplify adjacency rewrite codeBenoît Ganne1-115/+23
Using memcpy instead of complex specific copy logic. This simplify the implementation and also improve perf slightly. Also move adjacency data from tail to head of buffer, which improves cache locality (header and data share the same cacheline) Finally, fix VxLAN which used to workaround vnet_rewrite logic. Change-Id: I770ddad9846f7ee505aa99ad417e6a61d5cbbefa Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-03-07Honor vnet_rewrite_data_t data_bytes == 0Dave Barach1-1/+15
Avoid the cache miss consequences of spraying [functionally harmless] junk into un-prefetched rewrite space. As things stand, several tunnel encap rewrites set rewrite data_bytes = 0, and take a performance hit due to unwanted speculative copying. Should be performance-neutral in speed-path cases, which won't execute the added check. Change-Id: Id83c0325e58c0f31631b4bae5a06457dfc7ed567 Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-1/+1
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-4/+4
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-11MTU: Software interface / Per-protocol MTU supportOle Troan1-1/+2
This patch separates setting of hardware interfaec and software interface MTU. Software MTU is L2 payload MTU (i.e. not including L2 header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set. Currently only IP4, IP6 are enabled in adjacency / rewrite code. Documentation in src/vnet/MTU.md Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690 Signed-off-by: Ole Troan <ot@cisco.com>
2018-04-18Mcast rewrite optimisationsNeale Ranns1-16/+5
hard code the address mask offsets. This are protocol specific and only used on ethernet when used at all. Change-Id: Ib1f6f33682f53254ffbb5a241a1583e65420e0c7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-02-12Improve MTU handlingNeale Ranns1-0/+3
- setting MTU on an interface updates the L3 max bytes too - value cached in the adjacency is also updated - MTU exceeded generates ICMP to sender Change-Id: I343ec71d8e903b529594c4bd0543f04bc7f370b3 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2017-04-03Adjacency layout change and move to vnet/adjNeale Ranns1-0/+350
Change-Id: I03195a86c69f84a301051c6b3ab64456bbf28645 Signed-off-by: Neale Ranns <nranns@cisco.com>