On Tue, 23 May 2023 20:09:20 +0530 <pbhagavat...@marvell.com> wrote: > From: Pavan Nikhilesh <pbhagavat...@marvell.com> > > Improve reassembly lookup performance by using NEON intrinsics for > key validation. > > Signed-off-by: Pavan Nikhilesh <pbhagavat...@marvell.com> > --- > lib/ip_frag/ip_frag_internal.c | 224 +++++++++++++++++++++++++------ > lib/ip_frag/ip_reassembly.h | 6 + > lib/ip_frag/rte_ip_frag_common.c | 10 ++ > 3 files changed, 196 insertions(+), 44 deletions(-)
Using a function pointer for the lookup has some downsides. On Intel an indirect call is slower especially with SPECTRE mitigations. The bigger issue is that indirect call will break usage from primary/secondary process with ASLR. If primary sets up table and secondary uses it the function will be in different places.
