diff options
author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/crypto/scheduler/scheduler_pmd_ops.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'drivers/crypto/scheduler/scheduler_pmd_ops.c')
-rw-r--r-- | drivers/crypto/scheduler/scheduler_pmd_ops.c | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/drivers/crypto/scheduler/scheduler_pmd_ops.c b/drivers/crypto/scheduler/scheduler_pmd_ops.c new file mode 100644 index 00000000..2b5858df --- /dev/null +++ b/drivers/crypto/scheduler/scheduler_pmd_ops.c @@ -0,0 +1,571 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 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. + */ +#include <string.h> + +#include <rte_config.h> +#include <rte_common.h> +#include <rte_malloc.h> +#include <rte_dev.h> +#include <rte_cryptodev.h> +#include <rte_cryptodev_pmd.h> +#include <rte_reorder.h> + +#include "scheduler_pmd_private.h" + +/** attaching the slaves predefined by scheduler's EAL options */ +static int +scheduler_attach_init_slave(struct rte_cryptodev *dev) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint8_t scheduler_id = dev->data->dev_id; + int i; + + for (i = sched_ctx->nb_init_slaves - 1; i >= 0; i--) { + const char *dev_name = sched_ctx->init_slave_names[i]; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_named_dev(dev_name); + int status; + + if (!slave_dev) { + CS_LOG_ERR("Failed to locate slave dev %s", + dev_name); + return -EINVAL; + } + + status = rte_cryptodev_scheduler_slave_attach( + scheduler_id, slave_dev->data->dev_id); + + if (status < 0) { + CS_LOG_ERR("Failed to attach slave cryptodev %u", + slave_dev->data->dev_id); + return status; + } + + CS_LOG_INFO("Scheduler %s attached slave %s\n", + dev->data->name, + sched_ctx->init_slave_names[i]); + + rte_free(sched_ctx->init_slave_names[i]); + + sched_ctx->nb_init_slaves -= 1; + } + + return 0; +} +/** Configure device */ +static int +scheduler_pmd_config(struct rte_cryptodev *dev, + struct rte_cryptodev_config *config) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + int ret; + + /* although scheduler_attach_init_slave presents multiple times, + * there will be only 1 meaningful execution. + */ + ret = scheduler_attach_init_slave(dev); + if (ret < 0) + return ret; + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + + ret = rte_cryptodev_configure(slave_dev_id, config); + if (ret < 0) + break; + } + + return ret; +} + +static int +update_order_ring(struct rte_cryptodev *dev, uint16_t qp_id) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + struct scheduler_qp_ctx *qp_ctx = dev->data->queue_pairs[qp_id]; + + if (sched_ctx->reordering_enabled) { + char order_ring_name[RTE_CRYPTODEV_NAME_MAX_LEN]; + uint32_t buff_size = rte_align32pow2( + sched_ctx->nb_slaves * PER_SLAVE_BUFF_SIZE); + + if (qp_ctx->order_ring) { + rte_ring_free(qp_ctx->order_ring); + qp_ctx->order_ring = NULL; + } + + if (!buff_size) + return 0; + + if (snprintf(order_ring_name, RTE_CRYPTODEV_NAME_MAX_LEN, + "%s_rb_%u_%u", RTE_STR(CRYPTODEV_NAME_SCHEDULER_PMD), + dev->data->dev_id, qp_id) < 0) { + CS_LOG_ERR("failed to create unique reorder buffer " + "name"); + return -ENOMEM; + } + + qp_ctx->order_ring = rte_ring_create(order_ring_name, + buff_size, rte_socket_id(), + RING_F_SP_ENQ | RING_F_SC_DEQ); + if (!qp_ctx->order_ring) { + CS_LOG_ERR("failed to create order ring"); + return -ENOMEM; + } + } else { + if (qp_ctx->order_ring) { + rte_ring_free(qp_ctx->order_ring); + qp_ctx->order_ring = NULL; + } + } + + return 0; +} + +/** Start device */ +static int +scheduler_pmd_start(struct rte_cryptodev *dev) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + int ret; + + if (dev->data->dev_started) + return 0; + + /* although scheduler_attach_init_slave presents multiple times, + * there will be only 1 meaningful execution. + */ + ret = scheduler_attach_init_slave(dev); + if (ret < 0) + return ret; + + for (i = 0; i < dev->data->nb_queue_pairs; i++) { + ret = update_order_ring(dev, i); + if (ret < 0) { + CS_LOG_ERR("Failed to update reorder buffer"); + return ret; + } + } + + if (sched_ctx->mode == CDEV_SCHED_MODE_NOT_SET) { + CS_LOG_ERR("Scheduler mode is not set"); + return -1; + } + + if (!sched_ctx->nb_slaves) { + CS_LOG_ERR("No slave in the scheduler"); + return -1; + } + + RTE_FUNC_PTR_OR_ERR_RET(*sched_ctx->ops.slave_attach, -ENOTSUP); + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + + if ((*sched_ctx->ops.slave_attach)(dev, slave_dev_id) < 0) { + CS_LOG_ERR("Failed to attach slave"); + return -ENOTSUP; + } + } + + RTE_FUNC_PTR_OR_ERR_RET(*sched_ctx->ops.scheduler_start, -ENOTSUP); + + if ((*sched_ctx->ops.scheduler_start)(dev) < 0) { + CS_LOG_ERR("Scheduler start failed"); + return -1; + } + + /* start all slaves */ + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_dev(slave_dev_id); + + ret = (*slave_dev->dev_ops->dev_start)(slave_dev); + if (ret < 0) { + CS_LOG_ERR("Failed to start slave dev %u", + slave_dev_id); + return ret; + } + } + + return 0; +} + +/** Stop device */ +static void +scheduler_pmd_stop(struct rte_cryptodev *dev) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + + if (!dev->data->dev_started) + return; + + /* stop all slaves first */ + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_dev(slave_dev_id); + + (*slave_dev->dev_ops->dev_stop)(slave_dev); + } + + if (*sched_ctx->ops.scheduler_stop) + (*sched_ctx->ops.scheduler_stop)(dev); + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + + if (*sched_ctx->ops.slave_detach) + (*sched_ctx->ops.slave_detach)(dev, slave_dev_id); + } +} + +/** Close device */ +static int +scheduler_pmd_close(struct rte_cryptodev *dev) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + int ret; + + /* the dev should be stopped before being closed */ + if (dev->data->dev_started) + return -EBUSY; + + /* close all slaves first */ + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_dev(slave_dev_id); + + ret = (*slave_dev->dev_ops->dev_close)(slave_dev); + if (ret < 0) + return ret; + } + + for (i = 0; i < dev->data->nb_queue_pairs; i++) { + struct scheduler_qp_ctx *qp_ctx = dev->data->queue_pairs[i]; + + if (qp_ctx->order_ring) { + rte_ring_free(qp_ctx->order_ring); + qp_ctx->order_ring = NULL; + } + + if (qp_ctx->private_qp_ctx) { + rte_free(qp_ctx->private_qp_ctx); + qp_ctx->private_qp_ctx = NULL; + } + } + + if (sched_ctx->private_ctx) + rte_free(sched_ctx->private_ctx); + + if (sched_ctx->capabilities) + rte_free(sched_ctx->capabilities); + + return 0; +} + +/** Get device statistics */ +static void +scheduler_pmd_stats_get(struct rte_cryptodev *dev, + struct rte_cryptodev_stats *stats) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_dev(slave_dev_id); + struct rte_cryptodev_stats slave_stats = {0}; + + (*slave_dev->dev_ops->stats_get)(slave_dev, &slave_stats); + + stats->enqueued_count += slave_stats.enqueued_count; + stats->dequeued_count += slave_stats.dequeued_count; + + stats->enqueue_err_count += slave_stats.enqueue_err_count; + stats->dequeue_err_count += slave_stats.dequeue_err_count; + } +} + +/** Reset device statistics */ +static void +scheduler_pmd_stats_reset(struct rte_cryptodev *dev) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t i; + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev *slave_dev = + rte_cryptodev_pmd_get_dev(slave_dev_id); + + (*slave_dev->dev_ops->stats_reset)(slave_dev); + } +} + +/** Get device info */ +static void +scheduler_pmd_info_get(struct rte_cryptodev *dev, + struct rte_cryptodev_info *dev_info) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + uint32_t max_nb_sessions = sched_ctx->nb_slaves ? + UINT32_MAX : RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS; + uint32_t i; + + if (!dev_info) + return; + + /* although scheduler_attach_init_slave presents multiple times, + * there will be only 1 meaningful execution. + */ + scheduler_attach_init_slave(dev); + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_dev_id = sched_ctx->slaves[i].dev_id; + struct rte_cryptodev_info slave_info; + + rte_cryptodev_info_get(slave_dev_id, &slave_info); + max_nb_sessions = slave_info.sym.max_nb_sessions < + max_nb_sessions ? + slave_info.sym.max_nb_sessions : + max_nb_sessions; + } + + dev_info->dev_type = dev->dev_type; + dev_info->feature_flags = dev->feature_flags; + dev_info->capabilities = sched_ctx->capabilities; + dev_info->max_nb_queue_pairs = sched_ctx->max_nb_queue_pairs; + dev_info->sym.max_nb_sessions = max_nb_sessions; +} + +/** Release queue pair */ +static int +scheduler_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id) +{ + struct scheduler_qp_ctx *qp_ctx = dev->data->queue_pairs[qp_id]; + + if (!qp_ctx) + return 0; + + if (qp_ctx->order_ring) + rte_ring_free(qp_ctx->order_ring); + if (qp_ctx->private_qp_ctx) + rte_free(qp_ctx->private_qp_ctx); + + rte_free(qp_ctx); + dev->data->queue_pairs[qp_id] = NULL; + + return 0; +} + +/** Setup a queue pair */ +static int +scheduler_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id, + const struct rte_cryptodev_qp_conf *qp_conf, int socket_id) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + struct scheduler_qp_ctx *qp_ctx; + char name[RTE_CRYPTODEV_NAME_MAX_LEN]; + uint32_t i; + int ret; + + if (snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN, + "CRYTO_SCHE PMD %u QP %u", + dev->data->dev_id, qp_id) < 0) { + CS_LOG_ERR("Failed to create unique queue pair name"); + return -EFAULT; + } + + /* Free memory prior to re-allocation if needed. */ + if (dev->data->queue_pairs[qp_id] != NULL) + scheduler_pmd_qp_release(dev, qp_id); + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + uint8_t slave_id = sched_ctx->slaves[i].dev_id; + + ret = rte_cryptodev_queue_pair_setup(slave_id, qp_id, + qp_conf, socket_id); + if (ret < 0) + return ret; + } + + /* Allocate the queue pair data structure. */ + qp_ctx = rte_zmalloc_socket(name, sizeof(*qp_ctx), RTE_CACHE_LINE_SIZE, + socket_id); + if (qp_ctx == NULL) + return -ENOMEM; + + /* The actual available object number = nb_descriptors - 1 */ + qp_ctx->max_nb_objs = qp_conf->nb_descriptors - 1; + + dev->data->queue_pairs[qp_id] = qp_ctx; + + /* although scheduler_attach_init_slave presents multiple times, + * there will be only 1 meaningful execution. + */ + ret = scheduler_attach_init_slave(dev); + if (ret < 0) { + CS_LOG_ERR("Failed to attach slave"); + scheduler_pmd_qp_release(dev, qp_id); + return ret; + } + + if (*sched_ctx->ops.config_queue_pair) { + if ((*sched_ctx->ops.config_queue_pair)(dev, qp_id) < 0) { + CS_LOG_ERR("Unable to configure queue pair"); + return -1; + } + } + + return 0; +} + +/** Start queue pair */ +static int +scheduler_pmd_qp_start(__rte_unused struct rte_cryptodev *dev, + __rte_unused uint16_t queue_pair_id) +{ + return -ENOTSUP; +} + +/** Stop queue pair */ +static int +scheduler_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 +scheduler_pmd_qp_count(struct rte_cryptodev *dev) +{ + return dev->data->nb_queue_pairs; +} + +static uint32_t +scheduler_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused) +{ + return sizeof(struct scheduler_session); +} + +static int +config_slave_sess(struct scheduler_ctx *sched_ctx, + struct rte_crypto_sym_xform *xform, + struct scheduler_session *sess, + uint32_t create) +{ + uint32_t i; + + for (i = 0; i < sched_ctx->nb_slaves; i++) { + struct scheduler_slave *slave = &sched_ctx->slaves[i]; + + if (sess->sessions[i]) { + if (create) + continue; + /* !create */ + sess->sessions[i] = rte_cryptodev_sym_session_free( + slave->dev_id, sess->sessions[i]); + } else { + if (!create) + continue; + /* create */ + sess->sessions[i] = + rte_cryptodev_sym_session_create( + slave->dev_id, xform); + if (!sess->sessions[i]) { + config_slave_sess(sched_ctx, NULL, sess, 0); + return -1; + } + } + } + + return 0; +} + +/** Clear the memory of session so it doesn't leave key material behind */ +static void +scheduler_pmd_session_clear(struct rte_cryptodev *dev, + void *sess) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + + config_slave_sess(sched_ctx, NULL, sess, 0); + + memset(sess, 0, sizeof(struct scheduler_session)); +} + +static void * +scheduler_pmd_session_configure(struct rte_cryptodev *dev, + struct rte_crypto_sym_xform *xform, void *sess) +{ + struct scheduler_ctx *sched_ctx = dev->data->dev_private; + + if (config_slave_sess(sched_ctx, xform, sess, 1) < 0) { + CS_LOG_ERR("unabled to config sym session"); + return NULL; + } + + return sess; +} + +struct rte_cryptodev_ops scheduler_pmd_ops = { + .dev_configure = scheduler_pmd_config, + .dev_start = scheduler_pmd_start, + .dev_stop = scheduler_pmd_stop, + .dev_close = scheduler_pmd_close, + + .stats_get = scheduler_pmd_stats_get, + .stats_reset = scheduler_pmd_stats_reset, + + .dev_infos_get = scheduler_pmd_info_get, + + .queue_pair_setup = scheduler_pmd_qp_setup, + .queue_pair_release = scheduler_pmd_qp_release, + .queue_pair_start = scheduler_pmd_qp_start, + .queue_pair_stop = scheduler_pmd_qp_stop, + .queue_pair_count = scheduler_pmd_qp_count, + + .session_get_size = scheduler_pmd_session_get_size, + .session_configure = scheduler_pmd_session_configure, + .session_clear = scheduler_pmd_session_clear, +}; + +struct rte_cryptodev_ops *rte_crypto_scheduler_pmd_ops = &scheduler_pmd_ops; |