[PATCH v3 1/2] ip_frag: optimize key compare and hash generation

[Ruifeng Wang]

> -----Original Message-----
> From: pbhagavatula at marvell.com <pbhagavatula at marvell.com>
> Sent: Monday, May 29, 2023 10:55 PM
> To: jerinj at marvell.com; Ruifeng Wang <Ruifeng.Wang at arm.com>; Yipeng Wang
> <yipeng1.wang at intel.com>; Sameh Gobriel <sameh.gobriel at intel.com>; Bruce Richardson
> <bruce.richardson at intel.com>; Vladimir Medvedkin <vladimir.medvedkin at intel.com>;
> Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
> Cc: dev at dpdk.org; Pavan Nikhilesh <pbhagavatula at marvell.com>
> Subject: [PATCH v3 1/2] ip_frag: optimize key compare and hash generation
> 
> From: Pavan Nikhilesh <pbhagavatula at marvell.com>
> 
> Use optimized rte_hash_k32_cmp_eq routine for key comparison for
> x86 and ARM64.
> Use CRC instructions for hash generation on ARM64.
> 
> Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
> ---
> On Neoverse-N2, performance improved by 10% when measured with examples/ip_reassembly.
> 
>  v3 Changes:
>  - Drop NEON patch.
>  v2 Changes:
>  - Fix compilation failure with non ARM64/x86 targets
> 
>  lib/hash/rte_cmp_arm64.h       | 16 ++++++++--------
>  lib/hash/rte_cmp_x86.h         | 16 ++++++++--------
>  lib/ip_frag/ip_frag_common.h   | 14 +++++++++++++-
>  lib/ip_frag/ip_frag_internal.c |  4 ++--
>  4 files changed, 31 insertions(+), 19 deletions(-)
> 
Reviewed-by: Ruifeng Wang <ruifeng.wang at arm.com>