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path: root/src/vnet/adj/rewrite.c
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2020-05-04fib: midchain adjacency optimisationsNeale Ranns1-1/+1
Type: improvement - inline some common encap fixup functions into the midchain rewrite node so we don't incur the cost of the virtual function call - change the copy 'guess' from ethernet_header (which will never happen) to an ip4 header - add adj-midchain-tx to multiarch sources - don't run adj-midchain-tx as a feature, instead put this node as the adj's next and at the end of the feature arc. - cache the feature arc config index (to save the cache miss going to fetch it) - don't check if features are enabled when taking the arc (since we know they are) the last two changes will also benefit normal adjacencies taking the arc (i.e. for NAT, ACLs, etc) for IPSec: - don't run esp_encrypt as a feature, instead when required insert this node into the adj's next and into the end of the feature arc. this implies that encrypt is always 'the last feature' run, which is symmetric with decrypt always being the first. - esp_encrpyt for tunnels has adj-midchain-tx as next node Change-Id: Ida0af56a704302cf2d7797ded5f118a781e8acb7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-23api: binary api cleanupDave Barach1-1/+1
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>
2019-05-13remove dead code in rewrite.cNeale Ranns1-26/+0
Change-Id: Ib34ca76fcc5e85cb3cc646ffc7be208b8e757cba Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-26Simplify adjacency rewrite codeBenoît Ganne1-27/+3
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>
2018-10-30ADJ: init MTU to interface defaultNeale Ranns1-1/+2
Change-Id: Iaecf8c060e1337d8c362ad9a9be2bb9701664397 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-06-11MTU: Software interface / Per-protocol MTU supportOle Troan1-4/+7
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>
2018-03-016RD: Rewritten 6RD RFC5969 support.Ole Troan1-0/+2
Change-Id: Ic30fbcb2630f39e45345d7215babf5d7ed4b33a0 Signed-off-by: Ole Troan <ot@cisco.com>
2018-02-12Improve MTU handlingNeale Ranns1-3/+9
- 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>
2017-10-04[aarch64] Fixes CLI crashes on dpaa2 platform.Christophe Fontaine1-1/+1
- always use 'va_args' as pointer in all format_* functions - u32 for all 'indent' params as it's declaration was inconsistent Change-Id: Ic5799309a6b104c9b50fec309cba789c8da99e79 Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
2017-04-03Adjacency layout change and move to vnet/adjNeale Ranns1-0/+234
Change-Id: I03195a86c69f84a301051c6b3ab64456bbf28645 Signed-off-by: Neale Ranns <nranns@cisco.com>