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path: root/src/vnet/adj/rewrite.h
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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>