diff options
Diffstat (limited to 'lib/librte_cryptodev/rte_cryptodev_pmd.c')
| -rw-r--r-- | lib/librte_cryptodev/rte_cryptodev_pmd.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.c b/lib/librte_cryptodev/rte_cryptodev_pmd.c new file mode 100644 index 00000000..a57faadc --- /dev/null +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.c @@ -0,0 +1,249 @@ +/*- + * 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 the copyright holder 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_malloc.h> + +#include "rte_cryptodev_vdev.h" +#include "rte_cryptodev_pci.h" +#include "rte_cryptodev_pmd.h" + +/** + * Parse name from argument + */ +static int +rte_cryptodev_vdev_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) { + CDEV_LOG_ERR("Invalid name %s, should be less than " + "%u bytes", value, + RTE_CRYPTODEV_NAME_MAX_LEN - 1); + return -1; + } + + strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN); + + return 0; +} + +/** + * Parse integer from argument + */ +static int +rte_cryptodev_vdev_parse_integer_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + int *i = extra_args; + + *i = atoi(value); + if (*i < 0) { + CDEV_LOG_ERR("Argument has to be positive."); + return -1; + } + + return 0; +} + +struct rte_cryptodev * +rte_cryptodev_vdev_pmd_init(const char *name, size_t dev_private_size, + int socket_id, struct rte_vdev_device *vdev) +{ + struct rte_cryptodev *cryptodev; + + /* allocate device structure */ + cryptodev = rte_cryptodev_pmd_allocate(name, socket_id); + if (cryptodev == NULL) + return NULL; + + /* allocate private device structure */ + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + cryptodev->data->dev_private = + rte_zmalloc_socket("cryptodev device private", + dev_private_size, + RTE_CACHE_LINE_SIZE, + socket_id); + + if (cryptodev->data->dev_private == NULL) + rte_panic("Cannot allocate memzone for private device" + " data"); + } + + cryptodev->device = &vdev->device; + + /* initialise user call-back tail queue */ + TAILQ_INIT(&(cryptodev->link_intr_cbs)); + + return cryptodev; +} + +int +rte_cryptodev_vdev_parse_init_params(struct rte_crypto_vdev_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, + cryptodev_vdev_valid_params); + if (kvlist == NULL) + return -1; + + ret = rte_kvargs_process(kvlist, + RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG, + &rte_cryptodev_vdev_parse_integer_arg, + ¶ms->max_nb_queue_pairs); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, + RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG, + &rte_cryptodev_vdev_parse_integer_arg, + ¶ms->max_nb_sessions); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID, + &rte_cryptodev_vdev_parse_integer_arg, + ¶ms->socket_id); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME, + &rte_cryptodev_vdev_parse_name_arg, + params); + if (ret < 0) + goto free_kvlist; + } + +free_kvlist: + rte_kvargs_free(kvlist); + return ret; +} + +int +rte_cryptodev_pci_generic_probe(struct rte_pci_device *pci_dev, + size_t private_data_size, + cryptodev_pci_init_t dev_init) +{ + struct rte_cryptodev *cryptodev; + + char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN]; + + int retval; + + rte_pci_device_name(&pci_dev->addr, cryptodev_name, + sizeof(cryptodev_name)); + + cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id()); + if (cryptodev == NULL) + return -ENOMEM; + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + cryptodev->data->dev_private = + rte_zmalloc_socket( + "cryptodev private structure", + private_data_size, + RTE_CACHE_LINE_SIZE, + rte_socket_id()); + + if (cryptodev->data->dev_private == NULL) + rte_panic("Cannot allocate memzone for private " + "device data"); + } + + cryptodev->device = &pci_dev->device; + + /* init user callbacks */ + TAILQ_INIT(&(cryptodev->link_intr_cbs)); + + /* Invoke PMD device initialization function */ + RTE_FUNC_PTR_OR_ERR_RET(*dev_init, -EINVAL); + retval = dev_init(cryptodev); + if (retval == 0) + return 0; + + CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)" + " failed", pci_dev->device.driver->name, + (unsigned int) pci_dev->id.vendor_id, + (unsigned int) pci_dev->id.device_id); + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + rte_free(cryptodev->data->dev_private); + + /* free crypto device */ + rte_cryptodev_pmd_release_device(cryptodev); + + return -ENXIO; +} + +int +rte_cryptodev_pci_generic_remove(struct rte_pci_device *pci_dev, + cryptodev_pci_uninit_t dev_uninit) +{ + struct rte_cryptodev *cryptodev; + char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN]; + int ret; + + if (pci_dev == NULL) + return -EINVAL; + + rte_pci_device_name(&pci_dev->addr, cryptodev_name, + sizeof(cryptodev_name)); + + cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name); + if (cryptodev == NULL) + return -ENODEV; + + /* Invoke PMD device uninit function */ + if (dev_uninit) { + ret = dev_uninit(cryptodev); + if (ret) + return ret; + } + + /* free crypto device */ + rte_cryptodev_pmd_release_device(cryptodev); + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + rte_free(cryptodev->data->dev_private); + + cryptodev->device = NULL; + cryptodev->data = NULL; + + return 0; +} |