crypto/scheduler: register as vdev driver
Adds crypto scheduler's PMD's probe and remove function and the device's enqueue and dequeue burst functions. A cryptodev scheduler PMD is then registered in the end. Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Fan Zhang
Pablo de Lara
parent
100e4f7e44
commit
503e9c5afb
364
drivers/crypto/scheduler/scheduler_pmd.c
Normal file
364
drivers/crypto/scheduler/scheduler_pmd.c
Normal file
@ -0,0 +1,364 @@
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2017 Intel Corporation. All rights reserved.
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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 <rte_common.h>
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#include <rte_hexdump.h>
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#include <rte_cryptodev.h>
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#include <rte_cryptodev_pmd.h>
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#include <rte_vdev.h>
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#include <rte_malloc.h>
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#include <rte_cpuflags.h>
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#include <rte_reorder.h>
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#include <rte_cryptodev_scheduler.h>
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#include "scheduler_pmd_private.h"
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struct scheduler_init_params {
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struct rte_crypto_vdev_init_params def_p;
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uint32_t nb_slaves;
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uint8_t slaves[MAX_SLAVES_NUM];
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};
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#define RTE_CRYPTODEV_VDEV_NAME ("name")
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#define RTE_CRYPTODEV_VDEV_SLAVE ("slave")
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#define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG ("max_nb_queue_pairs")
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#define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG ("max_nb_sessions")
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#define RTE_CRYPTODEV_VDEV_SOCKET_ID ("socket_id")
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const char *scheduler_valid_params[] = {
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RTE_CRYPTODEV_VDEV_NAME,
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RTE_CRYPTODEV_VDEV_SLAVE,
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RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
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RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
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RTE_CRYPTODEV_VDEV_SOCKET_ID
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};
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static uint16_t
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scheduler_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
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uint16_t nb_ops)
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{
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struct scheduler_qp_ctx *qp_ctx = queue_pair;
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uint16_t processed_ops;
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processed_ops = (*qp_ctx->schedule_enqueue)(qp_ctx, ops,
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nb_ops);
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return processed_ops;
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}
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static uint16_t
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scheduler_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
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uint16_t nb_ops)
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{
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struct scheduler_qp_ctx *qp_ctx = queue_pair;
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uint16_t processed_ops;
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processed_ops = (*qp_ctx->schedule_dequeue)(qp_ctx, ops,
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nb_ops);
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return processed_ops;
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}
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static int
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attach_init_slaves(uint8_t scheduler_id,
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const uint8_t *slaves, const uint8_t nb_slaves)
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{
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uint8_t i;
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for (i = 0; i < nb_slaves; i++) {
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struct rte_cryptodev *dev =
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rte_cryptodev_pmd_get_dev(slaves[i]);
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int status = rte_cryptodev_scheduler_slave_attach(
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scheduler_id, slaves[i]);
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if (status < 0 || !dev) {
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CS_LOG_ERR("Failed to attach slave cryptodev "
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"%u.\n", slaves[i]);
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return status;
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}
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RTE_LOG(INFO, PMD, " Attached slave cryptodev %s\n",
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dev->data->name);
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}
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return 0;
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}
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static int
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cryptodev_scheduler_create(const char *name,
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struct scheduler_init_params *init_params)
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{
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char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN] = {0};
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struct rte_cryptodev *dev;
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struct scheduler_ctx *sched_ctx;
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if (init_params->def_p.name[0] == '\0') {
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int ret = rte_cryptodev_pmd_create_dev_name(
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crypto_dev_name,
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RTE_STR(CRYPTODEV_NAME_SCHEDULER_PMD));
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if (ret < 0) {
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CS_LOG_ERR("failed to create unique name");
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return ret;
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}
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} else {
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strncpy(crypto_dev_name, init_params->def_p.name,
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RTE_CRYPTODEV_NAME_MAX_LEN - 1);
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}
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dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
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sizeof(struct scheduler_ctx),
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init_params->def_p.socket_id);
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if (dev == NULL) {
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CS_LOG_ERR("driver %s: failed to create cryptodev vdev",
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name);
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return -EFAULT;
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}
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dev->dev_type = RTE_CRYPTODEV_SCHEDULER_PMD;
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dev->dev_ops = rte_crypto_scheduler_pmd_ops;
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dev->enqueue_burst = scheduler_enqueue_burst;
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dev->dequeue_burst = scheduler_dequeue_burst;
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sched_ctx = dev->data->dev_private;
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sched_ctx->max_nb_queue_pairs =
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init_params->def_p.max_nb_queue_pairs;
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return attach_init_slaves(dev->data->dev_id, init_params->slaves,
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init_params->nb_slaves);
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}
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static int
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cryptodev_scheduler_remove(const char *name)
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{
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struct rte_cryptodev *dev;
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struct scheduler_ctx *sched_ctx;
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if (name == NULL)
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return -EINVAL;
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dev = rte_cryptodev_pmd_get_named_dev(name);
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if (dev == NULL)
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return -EINVAL;
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sched_ctx = dev->data->dev_private;
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if (sched_ctx->nb_slaves) {
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uint32_t i;
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for (i = 0; i < sched_ctx->nb_slaves; i++)
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rte_cryptodev_scheduler_slave_detach(dev->data->dev_id,
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sched_ctx->slaves[i].dev_id);
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}
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RTE_LOG(INFO, PMD, "Closing Crypto Scheduler device %s on numa "
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"socket %u\n", name, rte_socket_id());
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return 0;
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}
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static uint8_t
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number_of_sockets(void)
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{
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int sockets = 0;
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int i;
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const struct rte_memseg *ms = rte_eal_get_physmem_layout();
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for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
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if (sockets < ms[i].socket_id)
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sockets = ms[i].socket_id;
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}
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/* Number of sockets = maximum socket_id + 1 */
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return ++sockets;
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}
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/** Parse integer from integer argument */
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static int
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parse_integer_arg(const char *key __rte_unused,
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const char *value, void *extra_args)
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{
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int *i = (int *) extra_args;
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*i = atoi(value);
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if (*i < 0) {
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CS_LOG_ERR("Argument has to be positive.\n");
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return -1;
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}
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return 0;
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}
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/** Parse name */
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static int
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parse_name_arg(const char *key __rte_unused,
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const char *value, void *extra_args)
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{
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struct rte_crypto_vdev_init_params *params = extra_args;
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if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
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CS_LOG_ERR("Invalid name %s, should be less than "
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"%u bytes.\n", value,
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RTE_CRYPTODEV_NAME_MAX_LEN - 1);
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return -1;
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}
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strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
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return 0;
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}
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/** Parse slave */
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static int
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parse_slave_arg(const char *key __rte_unused,
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const char *value, void *extra_args)
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{
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struct scheduler_init_params *param = extra_args;
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struct rte_cryptodev *dev =
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rte_cryptodev_pmd_get_named_dev(value);
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if (!dev) {
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RTE_LOG(ERR, PMD, "Invalid slave name %s.\n", value);
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return -1;
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}
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if (param->nb_slaves >= MAX_SLAVES_NUM - 1) {
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CS_LOG_ERR("Too many slaves.\n");
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return -1;
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}
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param->slaves[param->nb_slaves] = dev->data->dev_id;
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param->nb_slaves++;
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return 0;
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}
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static int
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scheduler_parse_init_params(struct scheduler_init_params *params,
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const char *input_args)
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{
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struct rte_kvargs *kvlist = NULL;
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int ret = 0;
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if (params == NULL)
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return -EINVAL;
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if (input_args) {
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kvlist = rte_kvargs_parse(input_args,
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scheduler_valid_params);
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if (kvlist == NULL)
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return -1;
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ret = rte_kvargs_process(kvlist,
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RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
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&parse_integer_arg,
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¶ms->def_p.max_nb_queue_pairs);
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if (ret < 0)
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goto free_kvlist;
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ret = rte_kvargs_process(kvlist,
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RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
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&parse_integer_arg,
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¶ms->def_p.max_nb_sessions);
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if (ret < 0)
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goto free_kvlist;
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ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
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&parse_integer_arg,
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¶ms->def_p.socket_id);
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if (ret < 0)
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goto free_kvlist;
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ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
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&parse_name_arg,
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¶ms->def_p);
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if (ret < 0)
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goto free_kvlist;
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ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SLAVE,
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&parse_slave_arg, params);
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if (ret < 0)
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goto free_kvlist;
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if (params->def_p.socket_id >= number_of_sockets()) {
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CDEV_LOG_ERR("Invalid socket id specified to create "
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"the virtual crypto device on");
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goto free_kvlist;
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}
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}
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free_kvlist:
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rte_kvargs_free(kvlist);
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return ret;
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}
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static int
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cryptodev_scheduler_probe(const char *name, const char *input_args)
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{
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struct scheduler_init_params init_params = {
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.def_p = {
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RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
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RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
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rte_socket_id(),
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""
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},
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.nb_slaves = 0,
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.slaves = {0}
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};
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scheduler_parse_init_params(&init_params, input_args);
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RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
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init_params.def_p.socket_id);
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RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n",
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init_params.def_p.max_nb_queue_pairs);
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RTE_LOG(INFO, PMD, " Max number of sessions = %d\n",
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init_params.def_p.max_nb_sessions);
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if (init_params.def_p.name[0] != '\0')
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RTE_LOG(INFO, PMD, " User defined name = %s\n",
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init_params.def_p.name);
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return cryptodev_scheduler_create(name, &init_params);
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}
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static struct rte_vdev_driver cryptodev_scheduler_pmd_drv = {
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.probe = cryptodev_scheduler_probe,
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.remove = cryptodev_scheduler_remove
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};
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RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SCHEDULER_PMD,
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cryptodev_scheduler_pmd_drv);
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RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SCHEDULER_PMD,
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"max_nb_queue_pairs=<int> "
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"max_nb_sessions=<int> "
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"socket_id=<int> "
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"slave=<name>");
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