>
> Add new lookup implementation for FIB6 trie algorithm using
> AVX512 instruction set
>
> Signed-off-by: Vladimir Medvedkin <vladimir.medved...@intel.com>
> ---
> lib/librte_fib/Makefile | 10 ++
> lib/librte_fib/meson.build | 9 ++
> lib/librte_fib/rte_fib6.h | 3 +-
> lib/librte_fib/trie.c | 21 ++++
> lib/librte_fib/trie_avx512.c | 269
> +++++++++++++++++++++++++++++++++++++++++++
> lib/librte_fib/trie_avx512.h | 20 ++++
> 6 files changed, 331 insertions(+), 1 deletion(-)
> create mode 100644 lib/librte_fib/trie_avx512.c
> create mode 100644 lib/librte_fib/trie_avx512.h
>
> diff --git a/lib/librte_fib/Makefile b/lib/librte_fib/Makefile
> index 3958da1..761c7c8 100644
> --- a/lib/librte_fib/Makefile
> +++ b/lib/librte_fib/Makefile
> @@ -25,12 +25,22 @@ grep -q __AVX512F__ && echo 1)
> CC_AVX512DQ_SUPPORT=$(shell $(CC) -mavx512dq -dM -E - </dev/null 2>&1 | \
> grep -q __AVX512DQ__ && echo 1)
>
> +CC_AVX512BW_SUPPORT=$(shell $(CC) -mavx512bw -dM -E - </dev/null 2>&1 | \
> +grep -q __AVX512BW__ && echo 1)
> +
> ifeq ($(CC_AVX512F_SUPPORT), 1)
> ifeq ($(CC_AVX512DQ_SUPPORT), 1)
> SRCS-$(CONFIG_RTE_LIBRTE_FIB) += dir24_8_avx512.c
> CFLAGS_dir24_8_avx512.o += -mavx512f
> CFLAGS_dir24_8_avx512.o += -mavx512dq
> CFLAGS_dir24_8.o += -DCC_DIR24_8_AVX512_SUPPORT
> + ifeq ($(CC_AVX512BW_SUPPORT), 1)
> + SRCS-$(CONFIG_RTE_LIBRTE_FIB) += trie_avx512.c
> + CFLAGS_trie_avx512.o += -mavx512f
> + CFLAGS_trie_avx512.o += -mavx512dq
> + CFLAGS_trie_avx512.o += -mavx512bw
> + CFLAGS_trie.o += -DCC_TRIE_AVX512_SUPPORT
> + endif
> endif
> endif
> include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/lib/librte_fib/meson.build b/lib/librte_fib/meson.build
> index 0963f3c..98adf11 100644
> --- a/lib/librte_fib/meson.build
> +++ b/lib/librte_fib/meson.build
> @@ -14,5 +14,14 @@ if dpdk_conf.has('RTE_ARCH_X86') and
> cc.has_argument('-mavx512f')
> c_args: cflags + ['-mavx512f'] + ['-mavx512dq'])
> objs += dir24_8_avx512_tmp.extract_objects('dir24_8_avx512.c')
> cflags += '-DCC_DIR24_8_AVX512_SUPPORT'
> + if cc.has_argument('-mavx512bw')
> + trie_avx512_tmp = static_library('trie_avx512_tmp',
> + 'trie_avx512.c',
> + dependencies: static_rte_eal,
> + c_args: cflags + ['-mavx512f'] + \
> + ['-mavx512dq'] + ['-mavx512bw'])
> + objs += trie_avx512_tmp.extract_objects('trie_avx512.c')
> + cflags += '-DCC_TRIE_AVX512_SUPPORT'
> + endif
> endif
> endif
> diff --git a/lib/librte_fib/rte_fib6.h b/lib/librte_fib/rte_fib6.h
> index b70369a..c55efdf 100644
> --- a/lib/librte_fib/rte_fib6.h
> +++ b/lib/librte_fib/rte_fib6.h
> @@ -53,7 +53,8 @@ enum rte_fib_trie_nh_sz {
> };
>
> enum rte_fib_trie_lookup_type {
> - RTE_FIB6_TRIE_SCALAR
> + RTE_FIB6_TRIE_SCALAR,
> + RTE_FIB6_TRIE_VECTOR
As a nit - does this enum needs to be public?
If it does, then probably worth to name it VECTOR_AVX512,
in case someone in future will want to add another vector implementation.
Probably same thought for v4.
Apart from that - LGTM.
Acked-by: Konstantin Ananyev <konstantin.anan...@intel.com>
