New upstream version 18.08
[deb_dpdk.git] / drivers / crypto / null / null_crypto_pmd_ops.c
index cf1a519..bb2b6e1 100644 (file)
@@ -1,33 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2016 Intel Corporation. All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2017 Intel Corporation
  */
 
 #include <string.h>
@@ -56,7 +28,7 @@ static const struct rte_cryptodev_capabilities null_crypto_pmd_capabilities[] =
                                        .max = 0,
                                        .increment = 0
                                },
-                               .aad_size = { 0 }
+                               .iv_size = { 0 }
                        }, },
                }, },
        },
@@ -68,15 +40,11 @@ static const struct rte_cryptodev_capabilities null_crypto_pmd_capabilities[] =
                                .algo = RTE_CRYPTO_CIPHER_NULL,
                                .block_size = 1,
                                .key_size = {
-                                       .min = 0,
-                                       .max = 0,
-                                       .increment = 8
-                               },
-                               .iv_size = {
                                        .min = 0,
                                        .max = 0,
                                        .increment = 0
-                               }
+                               },
+                               .iv_size = { 0 }
                        }, },
                }, }
        },
@@ -85,7 +53,8 @@ static const struct rte_cryptodev_capabilities null_crypto_pmd_capabilities[] =
 
 /** Configure device */
 static int
-null_crypto_pmd_config(__rte_unused struct rte_cryptodev *dev)
+null_crypto_pmd_config(__rte_unused struct rte_cryptodev *dev,
+               __rte_unused struct rte_cryptodev_config *config)
 {
        return 0;
 }
@@ -150,9 +119,10 @@ null_crypto_pmd_info_get(struct rte_cryptodev *dev,
        struct null_crypto_private *internals = dev->data->dev_private;
 
        if (dev_info != NULL) {
-               dev_info->dev_type = dev->dev_type;
+               dev_info->driver_id = dev->driver_id;
                dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-               dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
+               /* No limit of number of sessions */
+               dev_info->sym.max_nb_sessions = 0;
                dev_info->feature_flags = dev->feature_flags;
                dev_info->capabilities = null_crypto_pmd_capabilities;
        }
@@ -178,7 +148,7 @@ null_crypto_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
                        "null_crypto_pmd_%u_qp_%u",
                        dev->data->dev_id, qp->id);
 
-       if (n > sizeof(qp->name))
+       if (n >= sizeof(qp->name))
                return -1;
 
        return 0;
@@ -193,16 +163,16 @@ null_crypto_pmd_qp_create_processed_pkts_ring(struct null_crypto_qp *qp,
 
        r = rte_ring_lookup(qp->name);
        if (r) {
-               if (r->prod.size >= ring_size) {
-                       NULL_CRYPTO_LOG_INFO(
-                               "Reusing existing ring %s for processed packets",
-                               qp->name);
+               if (rte_ring_get_size(r) >= ring_size) {
+                       NULL_LOG(INFO,
+                                       "Reusing existing ring %s for "
+                                       " processed packets", qp->name);
                        return r;
                }
 
-               NULL_CRYPTO_LOG_INFO(
-                       "Unable to reuse existing ring %s for processed packets",
-                        qp->name);
+               NULL_LOG(INFO,
+                               "Unable to reuse existing ring %s for "
+                               " processed packets", qp->name);
                return NULL;
        }
 
@@ -214,14 +184,14 @@ null_crypto_pmd_qp_create_processed_pkts_ring(struct null_crypto_qp *qp,
 static int
 null_crypto_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
                const struct rte_cryptodev_qp_conf *qp_conf,
-                int socket_id)
+               int socket_id, struct rte_mempool *session_pool)
 {
        struct null_crypto_private *internals = dev->data->dev_private;
        struct null_crypto_qp *qp;
        int retval;
 
        if (qp_id >= internals->max_nb_qpairs) {
-               NULL_CRYPTO_LOG_ERR("Invalid qp_id %u, greater than maximum "
+               NULL_LOG(ERR, "Invalid qp_id %u, greater than maximum "
                                "number of queue pairs supported (%u).",
                                qp_id, internals->max_nb_qpairs);
                return (-EINVAL);
@@ -235,7 +205,7 @@ null_crypto_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
        qp = rte_zmalloc_socket("Null Crypto PMD Queue Pair", sizeof(*qp),
                                        RTE_CACHE_LINE_SIZE, socket_id);
        if (qp == NULL) {
-               NULL_CRYPTO_LOG_ERR("Failed to allocate queue pair memory");
+               NULL_LOG(ERR, "Failed to allocate queue pair memory");
                return (-ENOMEM);
        }
 
@@ -244,20 +214,21 @@ null_crypto_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 
        retval = null_crypto_pmd_qp_set_unique_name(dev, qp);
        if (retval) {
-               NULL_CRYPTO_LOG_ERR("Failed to create unique name for null "
+               NULL_LOG(ERR, "Failed to create unique name for null "
                                "crypto device");
+
                goto qp_setup_cleanup;
        }
 
        qp->processed_pkts = null_crypto_pmd_qp_create_processed_pkts_ring(qp,
                        qp_conf->nb_descriptors, socket_id);
        if (qp->processed_pkts == NULL) {
-               NULL_CRYPTO_LOG_ERR("Failed to create unique name for null "
+               NULL_LOG(ERR, "Failed to create unique name for null "
                                "crypto device");
                goto qp_setup_cleanup;
        }
 
-       qp->sess_mp = dev->data->session_pool;
+       qp->sess_mp = session_pool;
 
        memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
 
@@ -270,22 +241,6 @@ qp_setup_cleanup:
        return -1;
 }
 
-/** Start queue pair */
-static int
-null_crypto_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
-               __rte_unused uint16_t queue_pair_id)
-{
-       return -ENOTSUP;
-}
-
-/** Stop queue pair */
-static int
-null_crypto_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
-               __rte_unused uint16_t queue_pair_id)
-{
-       return -ENOTSUP;
-}
-
 /** Return the number of allocated queue pairs */
 static uint32_t
 null_crypto_pmd_qp_count(struct rte_cryptodev *dev)
@@ -295,39 +250,62 @@ null_crypto_pmd_qp_count(struct rte_cryptodev *dev)
 
 /** Returns the size of the NULL crypto session structure */
 static unsigned
-null_crypto_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
+null_crypto_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
 {
        return sizeof(struct null_crypto_session);
 }
 
 /** Configure a null crypto session from a crypto xform chain */
-static void *
-null_crypto_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
-               struct rte_crypto_sym_xform *xform, void *sess)
+static int
+null_crypto_pmd_sym_session_configure(struct rte_cryptodev *dev __rte_unused,
+               struct rte_crypto_sym_xform *xform,
+               struct rte_cryptodev_sym_session *sess,
+               struct rte_mempool *mp)
 {
-       int retval;
+       void *sess_private_data;
+       int ret;
 
        if (unlikely(sess == NULL)) {
-               NULL_CRYPTO_LOG_ERR("invalid session struct");
-               return NULL;
+               NULL_LOG(ERR, "invalid session struct");
+               return -EINVAL;
        }
-       retval = null_crypto_set_session_parameters(
-                       (struct null_crypto_session *)sess, xform);
-       if (retval != 0) {
-               NULL_CRYPTO_LOG_ERR("failed configure session parameters");
-               return NULL;
+
+       if (rte_mempool_get(mp, &sess_private_data)) {
+               NULL_LOG(ERR,
+                               "Couldn't get object from session mempool");
+               return -ENOMEM;
        }
 
-       return sess;
+       ret = null_crypto_set_session_parameters(sess_private_data, xform);
+       if (ret != 0) {
+               NULL_LOG(ERR, "failed configure session parameters");
+
+               /* Return session to mempool */
+               rte_mempool_put(mp, sess_private_data);
+               return ret;
+       }
+
+       set_sym_session_private_data(sess, dev->driver_id,
+               sess_private_data);
+
+       return 0;
 }
 
 /** Clear the memory of session so it doesn't leave key material behind */
 static void
-null_crypto_pmd_session_clear(struct rte_cryptodev *dev __rte_unused,
-               void *sess)
+null_crypto_pmd_sym_session_clear(struct rte_cryptodev *dev,
+               struct rte_cryptodev_sym_session *sess)
 {
-       if (sess)
-               memset(sess, 0, sizeof(struct null_crypto_session));
+       uint8_t index = dev->driver_id;
+       void *sess_priv = get_sym_session_private_data(sess, index);
+
+       /* Zero out the whole structure */
+       if (sess_priv) {
+               memset(sess_priv, 0, sizeof(struct null_crypto_session));
+               struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
+               set_sym_session_private_data(sess, index, NULL);
+               rte_mempool_put(sess_mp, sess_priv);
+       }
 }
 
 struct rte_cryptodev_ops pmd_ops = {
@@ -343,13 +321,11 @@ struct rte_cryptodev_ops pmd_ops = {
 
                .queue_pair_setup       = null_crypto_pmd_qp_setup,
                .queue_pair_release     = null_crypto_pmd_qp_release,
-               .queue_pair_start       = null_crypto_pmd_qp_start,
-               .queue_pair_stop        = null_crypto_pmd_qp_stop,
                .queue_pair_count       = null_crypto_pmd_qp_count,
 
-               .session_get_size       = null_crypto_pmd_session_get_size,
-               .session_configure      = null_crypto_pmd_session_configure,
-               .session_clear          = null_crypto_pmd_session_clear
+               .sym_session_get_size   = null_crypto_pmd_sym_session_get_size,
+               .sym_session_configure  = null_crypto_pmd_sym_session_configure,
+               .sym_session_clear      = null_crypto_pmd_sym_session_clear
 };
 
 struct rte_cryptodev_ops *null_crypto_pmd_ops = &pmd_ops;