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| author |   Zhiyong Yang <zhiyong.yang@intel.com> | 2020-07-08 20:28:36 +0000 |
|---|---|---|
| committer |   Junfeng Wang <drenfong.wang@intel.com> | 2020-09-04 02:34:03 +0000 |
| commit | 5e52417a2aa3b2063a811c6a9f293a79d73bcb43 (patch) | |
| tree | 4b4cdaccaa682c1dddea8617717af5ac4f520ea0 /src/svm/svm_fifo.h | |
| parent | 4a433f46084d05a524154db64d3d7d2567305009 (diff) | |
ip: enhance vtep4_check of tunnel by vector way
This patch aims to improve decap performance by reducing expensive
hash_get callings as less as possible using AVX512 on XEON.
e.g. vxlan, vxlan_gpe, geneve, gtpu.
For the existing code, if vtep4 of the current packet match the last
vtep4_key_t well, expensive hash computation can be avoided and the
code returns directly.
This patch improves tunnel decap multiple flows case greatly by
leveraging 512bit vector register on XEON accommodating 8 vtep4_keys.
It enhances the possiblity of avoiding unnecessary hash computing
once hash key of the current packet hits any one of 8 in the 512bit
cache.
The oldest element in vtep4_cache_t is updated in round-robin order.
vlib_get_buffers is also leveraged in the meanwhile.
Type: improvement
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Signed-off-by: Junfeng Wang <drenfong.wang@intel.com>
Change-Id: I313103202bd76f2dd638cd942554721b37ddad60
Diffstat (limited to 'src/svm/svm_fifo.h')
0 files changed, 0 insertions, 0 deletions