[dpdk-dev] [PATCH 2/8] crypto/octeontx: add RSA and modexp asym capabilities

[Anoob Joseph]

From: Kanaka Durga Kotamarthy <kkotamarthy at marvell.com>

Add RSA and modexp capabilities supported by octeontx crypto PMD

Signed-off-by: Anoob Joseph <anoobj at marvell.com>
Signed-off-by: Kanaka Durga Kotamarthy <kkotamarthy at marvell.com>
Signed-off-by: Sunila Sahu <ssahu at marvell.com>
---
 .../crypto/octeontx/otx_cryptodev_capabilities.c   | 47 ++++++++++++++++++++--
 .../crypto/octeontx/otx_cryptodev_capabilities.h   |  5 +--
 drivers/crypto/octeontx/otx_cryptodev_ops.c        |  5 ++-
 3 files changed, 49 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/octeontx/otx_cryptodev_capabilities.c b/drivers/crypto/octeontx/otx_cryptodev_capabilities.c
index c6d94c9..8c0358f 100644
--- a/drivers/crypto/octeontx/otx_cryptodev_capabilities.c
+++ b/drivers/crypto/octeontx/otx_cryptodev_capabilities.c
@@ -6,7 +6,7 @@
 
 #include "otx_cryptodev_capabilities.h"
 
-static const struct rte_cryptodev_capabilities otx_capabilities[] = {
+static const struct rte_cryptodev_capabilities otx_sym_capabilities[] = {
 	/* Symmetric capabilities */
 	{	/* NULL (AUTH) */
 		.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
@@ -597,8 +597,49 @@ static const struct rte_cryptodev_capabilities otx_capabilities[] = {
 	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 };
 
+static const struct rte_cryptodev_capabilities otx_asym_capabilities[] = {
+	/* Asymmetric capabilities */
+	{	/* RSA */
+		.op = RTE_CRYPTO_OP_TYPE_ASYMMETRIC,
+		{.asym = {
+			.xform_capa = {
+				.xform_type = RTE_CRYPTO_ASYM_XFORM_RSA,
+				.op_types = ((1 << RTE_CRYPTO_ASYM_OP_SIGN) |
+					(1 << RTE_CRYPTO_ASYM_OP_VERIFY) |
+					(1 << RTE_CRYPTO_ASYM_OP_ENCRYPT) |
+					(1 << RTE_CRYPTO_ASYM_OP_DECRYPT)),
+				{.modlen = {
+					.min = 17,
+					.max = 1024,
+					.increment = 1
+				}, }
+			}
+		}, }
+	},
+	{	/* MOD_EXP */
+		.op = RTE_CRYPTO_OP_TYPE_ASYMMETRIC,
+		{.asym = {
+			.xform_capa = {
+				.xform_type = RTE_CRYPTO_ASYM_XFORM_MODEX,
+				.op_types = 0,
+				{.modlen = {
+					.min = 17,
+					.max = 1024,
+					.increment = 1
+				}, }
+			}
+		}, }
+	},
+	/* End of asymmetric capabilities */
+	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
 const struct rte_cryptodev_capabilities *
-otx_get_capabilities(void)
+otx_get_capabilities(uint64_t flags)
 {
-	return otx_capabilities;
+	if (flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
+		return otx_asym_capabilities;
+	else
+		return otx_sym_capabilities;
+
 }
diff --git a/drivers/crypto/octeontx/otx_cryptodev_capabilities.h b/drivers/crypto/octeontx/otx_cryptodev_capabilities.h
index fc62821..439b50e 100644
--- a/drivers/crypto/octeontx/otx_cryptodev_capabilities.h
+++ b/drivers/crypto/octeontx/otx_cryptodev_capabilities.h
@@ -8,10 +8,9 @@
 #include <rte_cryptodev.h>
 
 /*
- * Get capabilities list for the device
- *
+ * Get capabilities list for the device, based on device type
  */
 const struct rte_cryptodev_capabilities *
-otx_get_capabilities(void);
+otx_get_capabilities(uint64_t flags);
 
 #endif /* _OTX_CRYPTODEV_CAPABILITIES_H_ */
diff --git a/drivers/crypto/octeontx/otx_cryptodev_ops.c b/drivers/crypto/octeontx/otx_cryptodev_ops.c
index 88efed3..b59a001 100644
--- a/drivers/crypto/octeontx/otx_cryptodev_ops.c
+++ b/drivers/crypto/octeontx/otx_cryptodev_ops.c
@@ -105,7 +105,7 @@ otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info)
 	if (info != NULL) {
 		info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF;
 		info->feature_flags = dev->feature_flags;
-		info->capabilities = otx_get_capabilities();
+		info->capabilities = otx_get_capabilities(info->feature_flags);
 		info->sym.max_nb_sessions = 0;
 		info->driver_id = otx_cryptodev_driver_id;
 		info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ;
@@ -635,7 +635,8 @@ otx_cpt_dev_create(struct rte_cryptodev *c_dev)
 	case OTX_CPT_VF_TYPE_AE:
 		/* Set asymmetric cpt feature flags */
 		c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
-				RTE_CRYPTODEV_FF_HW_ACCELERATED;
+				RTE_CRYPTODEV_FF_HW_ACCELERATED |
+				RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
 		break;
 	case OTX_CPT_VF_TYPE_SE:
 		/* Set symmetric cpt feature flags */
-- 
2.7.4