2016-03-10 16:41:46 +00:00
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/*-
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* BSD LICENSE
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*
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2017-07-05 05:26:17 +00:00
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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2016-03-10 16:41:46 +00:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include <rte_common.h>
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#include <rte_malloc.h>
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#include <rte_cryptodev_pmd.h>
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#include "aesni_gcm_pmd_private.h"
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2016-03-11 01:36:54 +00:00
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static const struct rte_cryptodev_capabilities aesni_gcm_pmd_capabilities[] = {
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2017-01-17 11:19:18 +00:00
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{ /* AES GMAC (AUTH) */
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2016-03-11 01:36:54 +00:00
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.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
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2016-03-30 12:49:55 +00:00
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{.sym = {
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2016-03-11 01:36:54 +00:00
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.xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
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2016-03-30 12:49:55 +00:00
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{.auth = {
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2017-01-17 11:19:18 +00:00
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.algo = RTE_CRYPTO_AUTH_AES_GMAC,
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2016-03-11 01:36:54 +00:00
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.block_size = 16,
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.key_size = {
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.min = 16,
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2017-01-17 11:19:18 +00:00
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.max = 32,
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2017-07-04 00:12:40 +00:00
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.increment = 8
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2016-03-11 01:36:54 +00:00
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},
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.digest_size = {
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.min = 8,
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.max = 16,
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.increment = 4
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},
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2017-07-02 05:41:19 +00:00
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.iv_size = {
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.min = 12,
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.max = 12,
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.increment = 0
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}
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2017-01-17 11:19:18 +00:00
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}, }
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}, }
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},
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2017-07-02 05:41:26 +00:00
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{ /* AES GCM */
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2017-01-17 11:19:18 +00:00
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.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
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{.sym = {
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2017-07-02 05:41:26 +00:00
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.xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
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{.aead = {
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.algo = RTE_CRYPTO_AEAD_AES_GCM,
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2017-01-17 11:19:18 +00:00
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.block_size = 16,
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.key_size = {
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.min = 16,
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.max = 32,
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2017-07-04 00:12:40 +00:00
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.increment = 8
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2017-01-17 11:19:18 +00:00
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},
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.digest_size = {
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2016-03-11 01:36:54 +00:00
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.min = 8,
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2017-01-17 11:19:18 +00:00
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.max = 16,
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2016-03-11 01:36:54 +00:00
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.increment = 4
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2017-01-17 11:19:18 +00:00
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},
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.aad_size = {
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.min = 0,
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.max = 65535,
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.increment = 1
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2017-07-02 05:41:15 +00:00
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},
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2016-03-11 01:36:54 +00:00
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.iv_size = {
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2016-12-23 08:24:52 +00:00
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.min = 12,
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.max = 12,
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2016-03-11 01:36:54 +00:00
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.increment = 0
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}
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2016-03-30 12:49:55 +00:00
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}, }
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}, }
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2016-03-11 01:36:54 +00:00
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},
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RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
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};
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2016-03-10 16:41:46 +00:00
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/** Configure device */
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static int
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2017-02-17 12:01:00 +00:00
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aesni_gcm_pmd_config(__rte_unused struct rte_cryptodev *dev,
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__rte_unused struct rte_cryptodev_config *config)
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2016-03-10 16:41:46 +00:00
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{
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return 0;
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}
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/** Start device */
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static int
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aesni_gcm_pmd_start(__rte_unused struct rte_cryptodev *dev)
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{
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return 0;
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}
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/** Stop device */
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static void
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aesni_gcm_pmd_stop(__rte_unused struct rte_cryptodev *dev)
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{
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}
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/** Close device */
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static int
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aesni_gcm_pmd_close(__rte_unused struct rte_cryptodev *dev)
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{
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return 0;
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}
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/** Get device statistics */
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static void
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aesni_gcm_pmd_stats_get(struct rte_cryptodev *dev,
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struct rte_cryptodev_stats *stats)
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{
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int qp_id;
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for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
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struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
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stats->enqueued_count += qp->qp_stats.enqueued_count;
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stats->dequeued_count += qp->qp_stats.dequeued_count;
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stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
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stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
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}
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}
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/** Reset device statistics */
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static void
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aesni_gcm_pmd_stats_reset(struct rte_cryptodev *dev)
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{
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int qp_id;
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for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
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struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
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memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
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}
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}
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/** Get device info */
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static void
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aesni_gcm_pmd_info_get(struct rte_cryptodev *dev,
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struct rte_cryptodev_info *dev_info)
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{
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struct aesni_gcm_private *internals = dev->data->dev_private;
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if (dev_info != NULL) {
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2017-06-30 14:34:21 +00:00
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dev_info->driver_id = dev->driver_id;
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2017-05-22 10:52:34 +00:00
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dev_info->feature_flags = dev->feature_flags;
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dev_info->capabilities = aesni_gcm_pmd_capabilities;
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2016-03-10 16:41:46 +00:00
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dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
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dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
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}
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}
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/** Release queue pair */
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static int
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aesni_gcm_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
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{
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if (dev->data->queue_pairs[qp_id] != NULL) {
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rte_free(dev->data->queue_pairs[qp_id]);
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dev->data->queue_pairs[qp_id] = NULL;
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}
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return 0;
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}
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/** set a unique name for the queue pair based on it's name, dev_id and qp_id */
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static int
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aesni_gcm_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
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struct aesni_gcm_qp *qp)
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{
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unsigned n = snprintf(qp->name, sizeof(qp->name),
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"aesni_gcm_pmd_%u_qp_%u",
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dev->data->dev_id, qp->id);
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if (n > sizeof(qp->name))
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return -1;
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return 0;
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}
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/** Create a ring to place process packets on */
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static struct rte_ring *
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aesni_gcm_pmd_qp_create_processed_pkts_ring(struct aesni_gcm_qp *qp,
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unsigned ring_size, int socket_id)
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{
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struct rte_ring *r;
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r = rte_ring_lookup(qp->name);
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if (r) {
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2017-03-27 14:54:40 +00:00
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if (rte_ring_get_size(r) >= ring_size) {
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2016-03-10 16:41:46 +00:00
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GCM_LOG_INFO("Reusing existing ring %s for processed"
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" packets", qp->name);
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return r;
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}
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GCM_LOG_ERR("Unable to reuse existing ring %s for processed"
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" packets", qp->name);
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return NULL;
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}
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return rte_ring_create(qp->name, ring_size, socket_id,
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RING_F_SP_ENQ | RING_F_SC_DEQ);
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}
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/** Setup a queue pair */
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static int
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aesni_gcm_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
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const struct rte_cryptodev_qp_conf *qp_conf,
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2017-07-05 05:26:18 +00:00
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int socket_id, struct rte_mempool *session_pool)
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2016-03-10 16:41:46 +00:00
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{
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struct aesni_gcm_qp *qp = NULL;
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2017-07-04 00:12:40 +00:00
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struct aesni_gcm_private *internals = dev->data->dev_private;
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2016-03-10 16:41:46 +00:00
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/* Free memory prior to re-allocation if needed. */
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if (dev->data->queue_pairs[qp_id] != NULL)
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aesni_gcm_pmd_qp_release(dev, qp_id);
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/* Allocate the queue pair data structure. */
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qp = rte_zmalloc_socket("AES-NI PMD Queue Pair", sizeof(*qp),
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RTE_CACHE_LINE_SIZE, socket_id);
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if (qp == NULL)
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return (-ENOMEM);
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qp->id = qp_id;
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dev->data->queue_pairs[qp_id] = qp;
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if (aesni_gcm_pmd_qp_set_unique_name(dev, qp))
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goto qp_setup_cleanup;
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2017-07-04 00:12:40 +00:00
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qp->ops = (const struct aesni_gcm_ops *)gcm_ops[internals->vector_mode];
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2016-03-10 16:41:46 +00:00
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qp->processed_pkts = aesni_gcm_pmd_qp_create_processed_pkts_ring(qp,
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qp_conf->nb_descriptors, socket_id);
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if (qp->processed_pkts == NULL)
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goto qp_setup_cleanup;
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2017-07-05 05:26:18 +00:00
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qp->sess_mp = session_pool;
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2016-03-10 16:41:46 +00:00
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memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
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return 0;
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qp_setup_cleanup:
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if (qp)
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rte_free(qp);
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return -1;
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}
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/** Start queue pair */
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static int
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aesni_gcm_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
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__rte_unused uint16_t queue_pair_id)
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{
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return -ENOTSUP;
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}
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/** Stop queue pair */
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static int
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aesni_gcm_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
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__rte_unused uint16_t queue_pair_id)
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{
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return -ENOTSUP;
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}
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/** Return the number of allocated queue pairs */
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static uint32_t
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aesni_gcm_pmd_qp_count(struct rte_cryptodev *dev)
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{
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return dev->data->nb_queue_pairs;
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}
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/** Returns the size of the aesni gcm session structure */
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static unsigned
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aesni_gcm_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
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{
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return sizeof(struct aesni_gcm_session);
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}
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/** Configure a aesni gcm session from a crypto xform chain */
|
2017-07-05 05:26:17 +00:00
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static int
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aesni_gcm_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
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struct rte_crypto_sym_xform *xform,
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struct rte_cryptodev_sym_session *sess,
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struct rte_mempool *mempool)
|
2016-03-10 16:41:46 +00:00
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{
|
2017-07-05 05:26:17 +00:00
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void *sess_private_data;
|
2017-07-04 00:12:40 +00:00
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struct aesni_gcm_private *internals = dev->data->dev_private;
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2016-03-10 16:41:46 +00:00
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if (unlikely(sess == NULL)) {
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GCM_LOG_ERR("invalid session struct");
|
2017-07-05 05:26:17 +00:00
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return -1;
|
2016-03-10 16:41:46 +00:00
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}
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2017-07-05 05:26:17 +00:00
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if (rte_mempool_get(mempool, &sess_private_data)) {
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CDEV_LOG_ERR(
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"Couldn't get object from session mempool");
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return -1;
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}
|
2017-07-04 00:12:40 +00:00
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if (aesni_gcm_set_session_parameters(gcm_ops[internals->vector_mode],
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2017-07-05 05:26:17 +00:00
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sess_private_data, xform) != 0) {
|
2016-03-10 16:41:46 +00:00
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GCM_LOG_ERR("failed configure session parameters");
|
2017-07-05 05:26:17 +00:00
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/* Return session to mempool */
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|
|
rte_mempool_put(mempool, sess_private_data);
|
|
|
|
return -1;
|
2016-03-10 16:41:46 +00:00
|
|
|
}
|
|
|
|
|
2017-07-05 05:26:17 +00:00
|
|
|
set_session_private_data(sess, dev->driver_id,
|
|
|
|
sess_private_data);
|
|
|
|
|
|
|
|
return 0;
|
2016-03-10 16:41:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/** Clear the memory of session so it doesn't leave key material behind */
|
|
|
|
static void
|
2017-07-05 05:26:17 +00:00
|
|
|
aesni_gcm_pmd_session_clear(struct rte_cryptodev *dev,
|
|
|
|
struct rte_cryptodev_sym_session *sess)
|
2016-03-10 16:41:46 +00:00
|
|
|
{
|
2017-07-05 05:26:17 +00:00
|
|
|
uint8_t index = dev->driver_id;
|
|
|
|
void *sess_priv = get_session_private_data(sess, index);
|
|
|
|
|
|
|
|
/* Zero out the whole structure */
|
|
|
|
if (sess_priv) {
|
|
|
|
memset(sess_priv, 0, sizeof(struct aesni_gcm_session));
|
|
|
|
struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
|
|
|
|
set_session_private_data(sess, index, NULL);
|
|
|
|
rte_mempool_put(sess_mp, sess_priv);
|
|
|
|
}
|
2016-03-10 16:41:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
struct rte_cryptodev_ops aesni_gcm_pmd_ops = {
|
|
|
|
.dev_configure = aesni_gcm_pmd_config,
|
|
|
|
.dev_start = aesni_gcm_pmd_start,
|
|
|
|
.dev_stop = aesni_gcm_pmd_stop,
|
|
|
|
.dev_close = aesni_gcm_pmd_close,
|
|
|
|
|
|
|
|
.stats_get = aesni_gcm_pmd_stats_get,
|
|
|
|
.stats_reset = aesni_gcm_pmd_stats_reset,
|
|
|
|
|
|
|
|
.dev_infos_get = aesni_gcm_pmd_info_get,
|
|
|
|
|
|
|
|
.queue_pair_setup = aesni_gcm_pmd_qp_setup,
|
|
|
|
.queue_pair_release = aesni_gcm_pmd_qp_release,
|
|
|
|
.queue_pair_start = aesni_gcm_pmd_qp_start,
|
|
|
|
.queue_pair_stop = aesni_gcm_pmd_qp_stop,
|
|
|
|
.queue_pair_count = aesni_gcm_pmd_qp_count,
|
|
|
|
|
|
|
|
.session_get_size = aesni_gcm_pmd_session_get_size,
|
|
|
|
.session_configure = aesni_gcm_pmd_session_configure,
|
|
|
|
.session_clear = aesni_gcm_pmd_session_clear
|
|
|
|
};
|
|
|
|
|
|
|
|
struct rte_cryptodev_ops *rte_aesni_gcm_pmd_ops = &aesni_gcm_pmd_ops;
|