From: Daniel Gregory <[email protected]> When the RISC-V Zbc (carryless multiplication) extension is present, an implementation of CRC hashing using hardware instructions is available. Use it rather than jhash.
Signed-off-by: Daniel Gregory <[email protected]> Signed-off-by: Daniel Gregory <[email protected]> --- lib/hash/rte_cuckoo_hash.c | 3 +++ lib/hash/rte_fbk_hash.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/lib/hash/rte_cuckoo_hash.c b/lib/hash/rte_cuckoo_hash.c index da12825c6e..ce45760b3e 100644 --- a/lib/hash/rte_cuckoo_hash.c +++ b/lib/hash/rte_cuckoo_hash.c @@ -460,6 +460,9 @@ rte_hash_create(const struct rte_hash_parameters *params) #elif defined(RTE_ARCH_ARM64) if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_CRC32)) default_hash_func = (rte_hash_function)rte_hash_crc; +#elif defined(RTE_ARCH_RISCV) + if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_RISCV_EXT_ZBC)) + default_hash_func = (rte_hash_function)rte_hash_crc; #endif /* Setup hash context */ strlcpy(h->name, params->name, sizeof(h->name)); diff --git a/lib/hash/rte_fbk_hash.c b/lib/hash/rte_fbk_hash.c index 45d4a13427..4266bb5198 100644 --- a/lib/hash/rte_fbk_hash.c +++ b/lib/hash/rte_fbk_hash.c @@ -148,6 +148,9 @@ rte_fbk_hash_create(const struct rte_fbk_hash_params *params) #elif defined(RTE_ARCH_ARM64) if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_CRC32)) default_hash_func = (rte_fbk_hash_fn)rte_hash_crc_4byte; +#elif defined(RTE_ARCH_RISCV) + if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_RISCV_EXT_ZBC)) + default_hash_func = (rte_fbk_hash_fn)rte_hash_crc_4byte; #endif /* Set up hash table context. */ -- 2.53.0
