crypto/octeontx2: add session related functions

[dpdk.git] / drivers / crypto / octeontx2 / otx2_cryptodev_ops.c

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
index f2146ba..b06d8f3 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
@@ -17,6 +17,7 @@
 #include "cpt_hw_types.h"
 #include "cpt_pmd_logs.h"
 #include "cpt_pmd_ops_helper.h"
+#include "cpt_ucode.h"
 
 #define METABUF_POOL_CACHE_SIZE        512
 
@@ -244,6 +245,90 @@ otx2_cpt_qp_destroy(const struct rte_cryptodev *dev, struct otx2_cpt_qp *qp)
        return 0;
 }
 
+static int
+sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform,
+                     struct rte_cryptodev_sym_session *sess,
+                     struct rte_mempool *pool)
+{
+       struct cpt_sess_misc *misc;
+       void *priv;
+       int ret;
+
+       if (unlikely(cpt_is_algo_supported(xform))) {
+               CPT_LOG_ERR("Crypto xform not supported");
+               return -ENOTSUP;
+       }
+
+       if (unlikely(rte_mempool_get(pool, &priv))) {
+               CPT_LOG_ERR("Could not allocate session private data");
+               return -ENOMEM;
+       }
+
+       misc = priv;
+
+       for ( ; xform != NULL; xform = xform->next) {
+               switch (xform->type) {
+               case RTE_CRYPTO_SYM_XFORM_AEAD:
+                       ret = fill_sess_aead(xform, misc);
+                       break;
+               case RTE_CRYPTO_SYM_XFORM_CIPHER:
+                       ret = fill_sess_cipher(xform, misc);
+                       break;
+               case RTE_CRYPTO_SYM_XFORM_AUTH:
+                       if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
+                               ret = fill_sess_gmac(xform, misc);
+                       else
+                               ret = fill_sess_auth(xform, misc);
+                       break;
+               default:
+                       ret = -1;
+               }
+
+               if (ret)
+                       goto priv_put;
+       }
+
+       set_sym_session_private_data(sess, driver_id, misc);
+
+       misc->ctx_dma_addr = rte_mempool_virt2iova(misc) +
+                            sizeof(struct cpt_sess_misc);
+
+       /*
+        * IE engines support IPsec operations
+        * SE engines support IPsec operations and Air-Crypto operations
+        */
+       if (misc->zsk_flag)
+               misc->egrp = OTX2_CPT_EGRP_SE;
+       else
+               misc->egrp = OTX2_CPT_EGRP_SE_IE;
+
+       return 0;
+
+priv_put:
+       rte_mempool_put(pool, priv);
+
+       CPT_LOG_ERR("Crypto xform not supported");
+       return -ENOTSUP;
+}
+
+static void
+sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
+{
+       void *priv = get_sym_session_private_data(sess, driver_id);
+       struct rte_mempool *pool;
+
+       if (priv == NULL)
+               return;
+
+       memset(priv, 0, cpt_get_session_size());
+
+       pool = rte_mempool_from_obj(priv);
+
+       set_sym_session_private_data(sess, driver_id, NULL);
+
+       rte_mempool_put(pool, priv);
+}
+
 /* PMD ops */
 
 static int
@@ -426,6 +511,32 @@ otx2_cpt_queue_pair_release(struct rte_cryptodev *dev, uint16_t qp_id)
        return 0;
 }
 
+static unsigned int
+otx2_cpt_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
+{
+       return cpt_get_session_size();
+}
+
+static int
+otx2_cpt_sym_session_configure(struct rte_cryptodev *dev,
+                              struct rte_crypto_sym_xform *xform,
+                              struct rte_cryptodev_sym_session *sess,
+                              struct rte_mempool *pool)
+{
+       CPT_PMD_INIT_FUNC_TRACE();
+
+       return sym_session_configure(dev->driver_id, xform, sess, pool);
+}
+
+static void
+otx2_cpt_sym_session_clear(struct rte_cryptodev *dev,
+                          struct rte_cryptodev_sym_session *sess)
+{
+       CPT_PMD_INIT_FUNC_TRACE();
+
+       return sym_session_clear(dev->driver_id, sess);
+}
+
 struct rte_cryptodev_ops otx2_cpt_ops = {
        /* Device control ops */
        .dev_configure = otx2_cpt_dev_config,
@@ -441,7 +552,7 @@ struct rte_cryptodev_ops otx2_cpt_ops = {
        .queue_pair_count = NULL,
 
        /* Symmetric crypto ops */
-       .sym_session_get_size = NULL,
-       .sym_session_configure = NULL,
-       .sym_session_clear = NULL,
+       .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,
 };