fib6: add runtime checks in AVX512 lookup

AVX512 lookup function requires CPU to support RTE_CPUFLAG_AVX512DQ and
RTE_CPUFLAG_AVX512BW. Add runtime checks of these two flags when deciding
if vector function can be used.

Fixes: 1e5630e ("fib6: add AVX512 lookup")
Cc: [email protected]

Signed-off-by: Vladimir Medvedkin <[email protected]>
Reviewed-by: David Marchand <[email protected]>

Author: vmedvedk

lib/fib/trie.c

@@ -46,8 +46,10 @@ static inline rte_fib6_lookup_fn_t
 get_vector_fn(enum rte_fib_trie_nh_sz nh_sz)
 {
 #ifdef CC_TRIE_AVX512_SUPPORT
-	if ((rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) <= 0) ||
-			(rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_512))
+	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) <= 0 ||
+			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512DQ) <= 0 ||
+			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) <= 0 ||
+			rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_512)
 		return NULL;
 	switch (nh_sz) {
 	case RTE_FIB6_TRIE_2B: