diff options
Diffstat (limited to 'drivers/crypto/scheduler/scheduler_pmd.c')
| -rw-r--r-- | drivers/crypto/scheduler/scheduler_pmd.c | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/drivers/crypto/scheduler/scheduler_pmd.c b/drivers/crypto/scheduler/scheduler_pmd.c new file mode 100644 index 00000000..0b63c20b --- /dev/null +++ b/drivers/crypto/scheduler/scheduler_pmd.c @@ -0,0 +1,456 @@ +/*- + * 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 <rte_common.h> +#include <rte_hexdump.h> +#include <rte_cryptodev.h> +#include <rte_cryptodev_pmd.h> +#include <rte_vdev.h> +#include <rte_malloc.h> +#include <rte_cpuflags.h> +#include <rte_reorder.h> + +#include "rte_cryptodev_scheduler.h" +#include "scheduler_pmd_private.h" + +struct scheduler_init_params { + struct rte_crypto_vdev_init_params def_p; + uint32_t nb_slaves; + enum rte_cryptodev_scheduler_mode mode; + uint32_t enable_ordering; + char slave_names[RTE_CRYPTODEV_SCHEDULER_MAX_NB_SLAVES] + [RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN]; +}; + +#define RTE_CRYPTODEV_VDEV_NAME ("name") +#define RTE_CRYPTODEV_VDEV_SLAVE ("slave") +#define RTE_CRYPTODEV_VDEV_MODE ("mode") +#define RTE_CRYPTODEV_VDEV_ORDERING ("ordering") +#define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG ("max_nb_queue_pairs") +#define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG ("max_nb_sessions") +#define RTE_CRYPTODEV_VDEV_SOCKET_ID ("socket_id") + +const char *scheduler_valid_params[] = { + RTE_CRYPTODEV_VDEV_NAME, + RTE_CRYPTODEV_VDEV_SLAVE, + RTE_CRYPTODEV_VDEV_MODE, + RTE_CRYPTODEV_VDEV_ORDERING, + RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG, + RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG, + RTE_CRYPTODEV_VDEV_SOCKET_ID +}; + +struct scheduler_parse_map { + const char *name; + uint32_t val; +}; + +const struct scheduler_parse_map scheduler_mode_map[] = { + {RTE_STR(SCHEDULER_MODE_NAME_ROUND_ROBIN), + CDEV_SCHED_MODE_ROUNDROBIN}, + {RTE_STR(SCHEDULER_MODE_NAME_PKT_SIZE_DISTR), + CDEV_SCHED_MODE_PKT_SIZE_DISTR}, + {RTE_STR(SCHEDULER_MODE_NAME_FAIL_OVER), + CDEV_SCHED_MODE_FAILOVER} +}; + +const struct scheduler_parse_map scheduler_ordering_map[] = { + {"enable", 1}, + {"disable", 0} +}; + +static int +cryptodev_scheduler_create(const char *name, + struct scheduler_init_params *init_params) +{ + struct rte_cryptodev *dev; + struct scheduler_ctx *sched_ctx; + uint32_t i; + int ret; + + if (init_params->def_p.name[0] == '\0') + snprintf(init_params->def_p.name, + sizeof(init_params->def_p.name), + "%s", name); + + dev = rte_cryptodev_pmd_virtual_dev_init(init_params->def_p.name, + sizeof(struct scheduler_ctx), + init_params->def_p.socket_id); + if (dev == NULL) { + CS_LOG_ERR("driver %s: failed to create cryptodev vdev", + name); + return -EFAULT; + } + + dev->dev_type = RTE_CRYPTODEV_SCHEDULER_PMD; + dev->dev_ops = rte_crypto_scheduler_pmd_ops; + + sched_ctx = dev->data->dev_private; + sched_ctx->max_nb_queue_pairs = + init_params->def_p.max_nb_queue_pairs; + + if (init_params->mode > CDEV_SCHED_MODE_USERDEFINED && + init_params->mode < CDEV_SCHED_MODE_COUNT) { + ret = rte_cryptodev_scheduler_mode_set(dev->data->dev_id, + init_params->mode); + if (ret < 0) { + rte_cryptodev_pmd_release_device(dev); + return ret; + } + + for (i = 0; i < RTE_DIM(scheduler_mode_map); i++) { + if (scheduler_mode_map[i].val != sched_ctx->mode) + continue; + + RTE_LOG(INFO, PMD, " Scheduling mode = %s\n", + scheduler_mode_map[i].name); + break; + } + } + + sched_ctx->reordering_enabled = init_params->enable_ordering; + + for (i = 0; i < RTE_DIM(scheduler_ordering_map); i++) { + if (scheduler_ordering_map[i].val != + sched_ctx->reordering_enabled) + continue; + + RTE_LOG(INFO, PMD, " Packet ordering = %s\n", + scheduler_ordering_map[i].name); + + break; + } + + for (i = 0; i < init_params->nb_slaves; i++) { + sched_ctx->init_slave_names[sched_ctx->nb_init_slaves] = + rte_zmalloc_socket( + NULL, + RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN, 0, + SOCKET_ID_ANY); + + if (!sched_ctx->init_slave_names[ + sched_ctx->nb_init_slaves]) { + CS_LOG_ERR("driver %s: Insufficient memory", + name); + return -ENOMEM; + } + + strncpy(sched_ctx->init_slave_names[ + sched_ctx->nb_init_slaves], + init_params->slave_names[i], + RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN - 1); + + sched_ctx->nb_init_slaves++; + } + + /* + * Initialize capabilities structure as an empty structure, + * in case device information is requested when no slaves are attached + */ + sched_ctx->capabilities = rte_zmalloc_socket(NULL, + sizeof(struct rte_cryptodev_capabilities), + 0, SOCKET_ID_ANY); + + if (!sched_ctx->capabilities) { + RTE_LOG(ERR, PMD, "Not enough memory for capability " + "information\n"); + return -ENOMEM; + } + + return 0; +} + +static int +cryptodev_scheduler_remove(struct rte_vdev_device *vdev) +{ + const char *name; + struct rte_cryptodev *dev; + struct scheduler_ctx *sched_ctx; + + if (vdev == NULL) + return -EINVAL; + + name = rte_vdev_device_name(vdev); + dev = rte_cryptodev_pmd_get_named_dev(name); + if (dev == NULL) + return -EINVAL; + + sched_ctx = dev->data->dev_private; + + if (sched_ctx->nb_slaves) { + uint32_t i; + + for (i = 0; i < sched_ctx->nb_slaves; i++) + rte_cryptodev_scheduler_slave_detach(dev->data->dev_id, + sched_ctx->slaves[i].dev_id); + } + + RTE_LOG(INFO, PMD, "Closing Crypto Scheduler device %s on numa " + "socket %u\n", name, rte_socket_id()); + + return 0; +} + +static uint8_t +number_of_sockets(void) +{ + int sockets = 0; + int i; + const struct rte_memseg *ms = rte_eal_get_physmem_layout(); + + for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) { + if (sockets < ms[i].socket_id) + sockets = ms[i].socket_id; + } + + /* Number of sockets = maximum socket_id + 1 */ + return ++sockets; +} + +/** Parse integer from integer argument */ +static int +parse_integer_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + int *i = (int *) extra_args; + + *i = atoi(value); + if (*i < 0) { + CS_LOG_ERR("Argument has to be positive.\n"); + return -EINVAL; + } + + return 0; +} + +/** Parse name */ +static int +parse_name_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + struct rte_crypto_vdev_init_params *params = extra_args; + + if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) { + CS_LOG_ERR("Invalid name %s, should be less than " + "%u bytes.\n", value, + RTE_CRYPTODEV_NAME_MAX_LEN - 1); + return -EINVAL; + } + + strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN); + + return 0; +} + +/** Parse slave */ +static int +parse_slave_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + struct scheduler_init_params *param = extra_args; + + if (param->nb_slaves >= RTE_CRYPTODEV_SCHEDULER_MAX_NB_SLAVES - 1) { + CS_LOG_ERR("Too many slaves.\n"); + return -ENOMEM; + } + + strncpy(param->slave_names[param->nb_slaves++], value, + RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN - 1); + + return 0; +} + +static int +parse_mode_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + struct scheduler_init_params *param = extra_args; + uint32_t i; + + for (i = 0; i < RTE_DIM(scheduler_mode_map); i++) { + if (strcmp(value, scheduler_mode_map[i].name) == 0) { + param->mode = (enum rte_cryptodev_scheduler_mode) + scheduler_mode_map[i].val; + break; + } + } + + if (i == RTE_DIM(scheduler_mode_map)) { + CS_LOG_ERR("Unrecognized input.\n"); + return -EINVAL; + } + + return 0; +} + +static int +parse_ordering_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + struct scheduler_init_params *param = extra_args; + uint32_t i; + + for (i = 0; i < RTE_DIM(scheduler_ordering_map); i++) { + if (strcmp(value, scheduler_ordering_map[i].name) == 0) { + param->enable_ordering = + scheduler_ordering_map[i].val; + break; + } + } + + if (i == RTE_DIM(scheduler_ordering_map)) { + CS_LOG_ERR("Unrecognized input.\n"); + return -EINVAL; + } + + return 0; +} + +static int +scheduler_parse_init_params(struct scheduler_init_params *params, + const char *input_args) +{ + struct rte_kvargs *kvlist = NULL; + int ret = 0; + + if (params == NULL) + return -EINVAL; + + if (input_args) { + kvlist = rte_kvargs_parse(input_args, + scheduler_valid_params); + if (kvlist == NULL) + return -1; + + ret = rte_kvargs_process(kvlist, + RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG, + &parse_integer_arg, + ¶ms->def_p.max_nb_queue_pairs); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, + RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG, + &parse_integer_arg, + ¶ms->def_p.max_nb_sessions); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID, + &parse_integer_arg, + ¶ms->def_p.socket_id); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME, + &parse_name_arg, + ¶ms->def_p); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SLAVE, + &parse_slave_arg, params); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_MODE, + &parse_mode_arg, params); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_ORDERING, + &parse_ordering_arg, params); + if (ret < 0) + goto free_kvlist; + + if (params->def_p.socket_id >= number_of_sockets()) { + CDEV_LOG_ERR("Invalid socket id specified to create " + "the virtual crypto device on"); + goto free_kvlist; + } + } + +free_kvlist: + rte_kvargs_free(kvlist); + return ret; +} + +static int +cryptodev_scheduler_probe(struct rte_vdev_device *vdev) +{ + struct scheduler_init_params init_params = { + .def_p = { + RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS, + RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS, + rte_socket_id(), + "" + }, + .nb_slaves = 0, + .mode = CDEV_SCHED_MODE_NOT_SET, + .enable_ordering = 0, + .slave_names = { {0} } + }; + const char *name; + + name = rte_vdev_device_name(vdev); + if (name == NULL) + return -EINVAL; + + scheduler_parse_init_params(&init_params, + rte_vdev_device_args(vdev)); + + RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", + name, + init_params.def_p.socket_id); + RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n", + init_params.def_p.max_nb_queue_pairs); + RTE_LOG(INFO, PMD, " Max number of sessions = %d\n", + init_params.def_p.max_nb_sessions); + if (init_params.def_p.name[0] != '\0') + RTE_LOG(INFO, PMD, " User defined name = %s\n", + init_params.def_p.name); + + return cryptodev_scheduler_create(name, + &init_params); +} + +static struct rte_vdev_driver cryptodev_scheduler_pmd_drv = { + .probe = cryptodev_scheduler_probe, + .remove = cryptodev_scheduler_remove +}; + +RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SCHEDULER_PMD, + cryptodev_scheduler_pmd_drv); +RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SCHEDULER_PMD, + "max_nb_queue_pairs=<int> " + "max_nb_sessions=<int> " + "socket_id=<int> " + "slave=<name>"); |