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2021-02-15vlib: refactor checksum offload supportMohsin Kazmi1-16/+15
Type: refactor This patch refactors the offload flags in vlib_buffer_t. There are two main reasons behind this refactoring. First, offload flags are insufficient to represent outer and inner headers offloads. Second, room for these flags in first cacheline of vlib_buffer_t is also limited. This patch introduces a generic offload flag in first cacheline. And detailed offload flags in 2nd cacheline of the structure for performance optimization. Change-Id: Icc363a142fb9208ec7113ab5bbfc8230181f6004 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-06-08vxlan: Fixed checksum caclculation offsetVladimir Isaev1-42/+12
VXLAN uses csum_offload for IPv6 packets. But without gso node we have csum calculated only for inner packet. This patch adds support for outer header csum calculation. Checksum for inner packet should be calculated before interface-output node (for example in vxlan node). Type: fix Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Signed-off-by: Vladimir Isaev <visaev@netgate.com> Change-Id: Ica68429ede4426293769207cd83c791ebe72fe56
2020-05-05gso: add support for IP-IPMohsin Kazmi1-1/+2
Type: feature Change-Id: I37752af8496e0042a1da91124f3d94216b39ff11 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-22gso: add vxlan tunnel supportMohsin Kazmi1-33/+62
Type: feature Change-Id: I85f6ec77187a4983c66c5e22fd39fbb2cef82902 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-15misc: refactor calc_checksumsDave Barach1-8/+21
Merge two mildly incompatible static inlines, and rename the results vnet_calc_checksums_inline (...). The resulting inline has three additional parameters: int is_ip4, int is_ip6, and int with_gso. All calls manage to pass one or more as compile-time constants, which causes a certain amount of code to disappear in each instantiation. Type: refactor Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I1a2a0e353b9a7bca20bc81318e8c915617261e1a
2019-11-05ip: Fragmentation fixesNeale Ranns1-2/+4
Type: fix if the packet is about to be fragmented, then don't call any of the actions that expect the rewrite to have been written. 1) don't double count packets thru the adjacency (original & fragments) 2) don't double decrement the TTL for fragments 3) return to ip4-midchain post ip-frag if that's where we started. 4) only run midchain/mcast fixups if not fragmenting (if no errors) Change-Id: Ib2866787a42713ee5871b87b597d8f74b901044b Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-28IPSEC: run encrpyt as a feautre on the tunnelNeale Ranns1-0/+106
Change-Id: I6527e3fd8bbbca2d5f728621fc66b3856b39d505 Signed-off-by: Neale Ranns <nranns@cisco.com>