[dpdk-dev] [PATCH 3/6] crypto/octeontx2: add asymmetric session operations

[Anoob Joseph]

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

This patch adds asymmetric session setup and free routines.

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>
---
 drivers/crypto/octeontx2/otx2_cryptodev.c     |  3 +-
 drivers/crypto/octeontx2/otx2_cryptodev_ops.c | 67 +++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev.c b/drivers/crypto/octeontx2/otx2_cryptodev.c
index 490e7a1..fbfaf55 100644
--- a/drivers/crypto/octeontx2/otx2_cryptodev.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev.c
@@ -103,7 +103,8 @@ otx2_cpt_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 			     RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 			     RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 			     RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
-			     RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO;
+			     RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
+			     RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
 
 	return 0;
 
diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
index 6050b18..9a1d0e7 100644
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
@@ -11,6 +11,7 @@
 #include "cpt_pmd_logs.h"
 #include "cpt_pmd_ops_helper.h"
 #include "cpt_ucode.h"
+#include "cpt_ucode_asym.h"
 
 #include "otx2_cryptodev.h"
 #include "otx2_cryptodev_capabilities.h"
@@ -833,6 +834,66 @@ otx2_cpt_sym_session_clear(struct rte_cryptodev *dev,
 	return sym_session_clear(dev->driver_id, sess);
 }
 
+static unsigned int
+otx2_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
+{
+	return sizeof(struct cpt_asym_sess_misc);
+}
+
+static int
+otx2_cpt_asym_session_cfg(struct rte_cryptodev *dev,
+			  struct rte_crypto_asym_xform *xform,
+			  struct rte_cryptodev_asym_session *sess,
+			  struct rte_mempool *pool)
+{
+	struct cpt_asym_sess_misc *priv;
+	int ret;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	if (rte_mempool_get(pool, (void **)&priv)) {
+		CPT_LOG_ERR("Could not allocate session_private_data");
+		return -ENOMEM;
+	}
+
+	memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
+
+	ret = cpt_fill_asym_session_parameters(priv, xform);
+	if (ret) {
+		CPT_LOG_ERR("Could not configure session parameters");
+
+		/* Return session to mempool */
+		rte_mempool_put(pool, priv);
+		return ret;
+	}
+
+	set_asym_session_private_data(sess, dev->driver_id, priv);
+	return 0;
+}
+
+static void
+otx2_cpt_asym_session_clear(struct rte_cryptodev *dev,
+			    struct rte_cryptodev_asym_session *sess)
+{
+	struct cpt_asym_sess_misc *priv;
+	struct rte_mempool *sess_mp;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	priv = get_asym_session_private_data(sess, dev->driver_id);
+	if (priv == NULL)
+		return;
+
+	/* Free resources allocated in session_cfg */
+	cpt_free_asym_session_parameters(priv);
+
+	/* Reset and free object back to pool */
+	memset(priv, 0, otx2_cpt_asym_session_size_get(dev));
+	sess_mp = rte_mempool_from_obj(priv);
+	set_asym_session_private_data(sess, dev->driver_id, NULL);
+	rte_mempool_put(sess_mp, priv);
+}
+
 struct rte_cryptodev_ops otx2_cpt_ops = {
 	/* Device control ops */
 	.dev_configure = otx2_cpt_dev_config,
@@ -851,4 +912,10 @@ struct rte_cryptodev_ops otx2_cpt_ops = {
 	.sym_session_get_size = otx2_cpt_sym_session_get_size,
 	.sym_session_configure = otx2_cpt_sym_session_configure,
 	.sym_session_clear = otx2_cpt_sym_session_clear,
+
+	/* Asymmetric crypto ops */
+	.asym_session_get_size = otx2_cpt_asym_session_size_get,
+	.asym_session_configure = otx2_cpt_asym_session_cfg,
+	.asym_session_clear = otx2_cpt_asym_session_clear,
+
 };
-- 
2.7.4