[dpdk-dev] [PATCH 1/2] crypto/aesni_mb: enablement of avx512 support in IPsec_mb library

[Declan Doherty]

Release v0.44 of Intel(R) Multi-Buffer Crypto for IPsec library adds support for
AVX512 instructions. This patch enables the new AVX512 accelerated functions
from the aesni_mb_pmd crypto poll mode driver.

This patch set requires that the aesni_mb_pmd is linked against the version 0.44
or greater of the Multi-Buffer Crypto for IPsec library.

Signed-off-by: Declan Doherty <declan.doherty at intel.com>
---
 drivers/crypto/aesni_mb/aesni_mb_ops.h     | 28 +++++++++++++++++++++++++++-
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c |  7 ++++++-
 lib/librte_cryptodev/rte_cryptodev.h       |  2 ++
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/aesni_mb/aesni_mb_ops.h b/drivers/crypto/aesni_mb/aesni_mb_ops.h
index 0c119bf..2d41d73 100644
--- a/drivers/crypto/aesni_mb/aesni_mb_ops.h
+++ b/drivers/crypto/aesni_mb/aesni_mb_ops.h
@@ -44,7 +44,8 @@ enum aesni_mb_vector_mode {
 	RTE_AESNI_MB_NOT_SUPPORTED = 0,
 	RTE_AESNI_MB_SSE,
 	RTE_AESNI_MB_AVX,
-	RTE_AESNI_MB_AVX2
+	RTE_AESNI_MB_AVX2,
+	RTE_AESNI_MB_AVX512
 };
 
 typedef void (*md5_one_block_t)(void *data, void *digest);
@@ -203,6 +204,31 @@ static const struct aesni_mb_ops job_ops[] = {
 					aes_xcbc_expand_key_avx2
 				}
 			}
+		},
+		[RTE_AESNI_MB_AVX512] = {
+			.job = {
+				init_mb_mgr_avx512,
+				get_next_job_avx512,
+				submit_job_avx512,
+				get_completed_job_avx512,
+				flush_job_avx512
+			},
+			.aux = {
+				.one_block = {
+					md5_one_block_avx512,
+					sha1_one_block_avx512,
+					sha224_one_block_avx512,
+					sha256_one_block_avx512,
+					sha384_one_block_avx512,
+					sha512_one_block_avx512
+				},
+				.keyexp = {
+					aes_keyexp_128_avx512,
+					aes_keyexp_192_avx512,
+					aes_keyexp_256_avx512,
+					aes_xcbc_expand_key_avx512
+				}
+			}
 		}
 };
 
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
index f07cd07..c400b17 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
@@ -613,7 +613,9 @@ cryptodev_aesni_mb_create(const char *name,
 	}
 
 	/* Check CPU for supported vector instruction set */
-	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
+	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
+		vector_mode = RTE_AESNI_MB_AVX512;
+	else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
 		vector_mode = RTE_AESNI_MB_AVX2;
 	else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 		vector_mode = RTE_AESNI_MB_AVX;
@@ -660,6 +662,9 @@ cryptodev_aesni_mb_create(const char *name,
 	case RTE_AESNI_MB_AVX2:
 		dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
 		break;
+	case RTE_AESNI_MB_AVX512:
+		dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX512;
+		break;
 	default:
 		break;
 	}
diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index 8f63e8f..29d8eec 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -225,6 +225,8 @@ struct rte_cryptodev_capabilities {
 /**< Utilises CPU AES-NI instructions */
 #define	RTE_CRYPTODEV_FF_HW_ACCELERATED		(1ULL << 7)
 /**< Operations are off-loaded to an external hardware accelerator */
+#define	RTE_CRYPTODEV_FF_CPU_AVX512		(1ULL << 8)
+/**< Utilises CPU SIMD AVX512 instructions */
 
 
 /**
-- 
2.5.5