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crypto/aesni_gcm: fix performance on some AVX512 CPUs

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This patch fixes the aesni_gcm performance issue on systems with AVX512
CPU flag presented but with VAES CPU flag missing, such as Skylake.

Fixes: 81fe96a0cece ("crypto/aesni_gcm: use architecture independent API")
Cc: stable@dpdk.org

Signed-off-by: Kai Ji <kai.ji@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
This commit is contained in:
Kai Ji 2021-06-29 16:19:07 +01:00 committed by Akhil Goyal
parent 44a2cebbd4
commit 93d5bdb5e3
1 changed files with 8 additions and 2 deletions
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10
drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
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@ -842,8 +842,14 @@ aesni_gcm_create(const char *name,
init_mb_mgr_avx2(mb_mgr);
break;
case RTE_AESNI_GCM_AVX512:
dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX512;
init_mb_mgr_avx512(mb_mgr);
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_VAES)) {
dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX512;
init_mb_mgr_avx512(mb_mgr);
} else {
dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
init_mb_mgr_avx2(mb_mgr);
vector_mode = RTE_AESNI_GCM_AVX2;
}
break;
default:
AESNI_GCM_LOG(ERR, "Unsupported vector mode %u\n", vector_mode);