diff options
Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_init.c')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_init.c | 384 |
1 files changed, 0 insertions, 384 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_init.c b/drivers/crypto/qat/qat_common/adf_init.c deleted file mode 100644 index 26556c713049..000000000000 --- a/drivers/crypto/qat/qat_common/adf_init.c +++ /dev/null @@ -1,384 +0,0 @@ -/* - This file is provided under a dual BSD/GPLv2 license. When using or - redistributing this file, you may do so under either license. - - GPL LICENSE SUMMARY - Copyright(c) 2014 Intel Corporation. - This program is free software; you can redistribute it and/or modify - it under the terms of version 2 of the GNU General Public License as - published by the Free Software Foundation. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - Contact Information: - qat-linux@intel.com - - BSD LICENSE - Copyright(c) 2014 Intel Corporation. - 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 <linux/mutex.h> -#include <linux/list.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include "adf_accel_devices.h" -#include "adf_cfg.h" -#include "adf_common_drv.h" - -static LIST_HEAD(service_table); -static DEFINE_MUTEX(service_lock); - -static void adf_service_add(struct service_hndl *service) -{ - mutex_lock(&service_lock); - list_add(&service->list, &service_table); - mutex_unlock(&service_lock); -} - -int adf_service_register(struct service_hndl *service) -{ - memset(service->init_status, 0, sizeof(service->init_status)); - memset(service->start_status, 0, sizeof(service->start_status)); - adf_service_add(service); - return 0; -} - -static void adf_service_remove(struct service_hndl *service) -{ - mutex_lock(&service_lock); - list_del(&service->list); - mutex_unlock(&service_lock); -} - -int adf_service_unregister(struct service_hndl *service) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(service->init_status); i++) { - if (service->init_status[i] || service->start_status[i]) { - pr_err("QAT: Could not remove active service\n"); - return -EFAULT; - } - } - adf_service_remove(service); - return 0; -} - -/** - * adf_dev_init() - Init data structures and services for the given accel device - * @accel_dev: Pointer to acceleration device. - * - * Initialize the ring data structures and the admin comms and arbitration - * services. - * - * Return: 0 on success, error code otherwise. - */ -int adf_dev_init(struct adf_accel_dev *accel_dev) -{ - struct service_hndl *service; - struct list_head *list_itr; - struct adf_hw_device_data *hw_data = accel_dev->hw_device; - - if (!hw_data) { - dev_err(&GET_DEV(accel_dev), - "Failed to init device - hw_data not set\n"); - return -EFAULT; - } - - if (!test_bit(ADF_STATUS_CONFIGURED, &accel_dev->status)) { - dev_err(&GET_DEV(accel_dev), "Device not configured\n"); - return -EFAULT; - } - - if (adf_init_etr_data(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "Failed initialize etr\n"); - return -EFAULT; - } - - if (hw_data->init_admin_comms && hw_data->init_admin_comms(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "Failed initialize admin comms\n"); - return -EFAULT; - } - - if (hw_data->init_arb && hw_data->init_arb(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "Failed initialize hw arbiter\n"); - return -EFAULT; - } - - hw_data->enable_ints(accel_dev); - - if (adf_ae_init(accel_dev)) { - dev_err(&GET_DEV(accel_dev), - "Failed to initialise Acceleration Engine\n"); - return -EFAULT; - } - set_bit(ADF_STATUS_AE_INITIALISED, &accel_dev->status); - - if (adf_ae_fw_load(accel_dev)) { - dev_err(&GET_DEV(accel_dev), - "Failed to load acceleration FW\n"); - return -EFAULT; - } - set_bit(ADF_STATUS_AE_UCODE_LOADED, &accel_dev->status); - - if (hw_data->alloc_irq(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "Failed to allocate interrupts\n"); - return -EFAULT; - } - set_bit(ADF_STATUS_IRQ_ALLOCATED, &accel_dev->status); - - /* - * Subservice initialisation is divided into two stages: init and start. - * This is to facilitate any ordering dependencies between services - * prior to starting any of the accelerators. - */ - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (service->event_hld(accel_dev, ADF_EVENT_INIT)) { - dev_err(&GET_DEV(accel_dev), - "Failed to initialise service %s\n", - service->name); - return -EFAULT; - } - set_bit(accel_dev->accel_id, service->init_status); - } - - hw_data->enable_error_correction(accel_dev); - hw_data->enable_vf2pf_comms(accel_dev); - - return 0; -} -EXPORT_SYMBOL_GPL(adf_dev_init); - -/** - * adf_dev_start() - Start acceleration service for the given accel device - * @accel_dev: Pointer to acceleration device. - * - * Function notifies all the registered services that the acceleration device - * is ready to be used. - * To be used by QAT device specific drivers. - * - * Return: 0 on success, error code otherwise. - */ -int adf_dev_start(struct adf_accel_dev *accel_dev) -{ - struct adf_hw_device_data *hw_data = accel_dev->hw_device; - struct service_hndl *service; - struct list_head *list_itr; - - set_bit(ADF_STATUS_STARTING, &accel_dev->status); - - if (adf_ae_start(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "AE Start Failed\n"); - return -EFAULT; - } - set_bit(ADF_STATUS_AE_STARTED, &accel_dev->status); - - if (hw_data->send_admin_init(accel_dev)) { - dev_err(&GET_DEV(accel_dev), "Failed to send init message\n"); - return -EFAULT; - } - - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (service->event_hld(accel_dev, ADF_EVENT_START)) { - dev_err(&GET_DEV(accel_dev), - "Failed to start service %s\n", - service->name); - return -EFAULT; - } - set_bit(accel_dev->accel_id, service->start_status); - } - - clear_bit(ADF_STATUS_STARTING, &accel_dev->status); - set_bit(ADF_STATUS_STARTED, &accel_dev->status); - - if (!list_empty(&accel_dev->crypto_list) && - (qat_algs_register() || qat_asym_algs_register())) { - dev_err(&GET_DEV(accel_dev), - "Failed to register crypto algs\n"); - set_bit(ADF_STATUS_STARTING, &accel_dev->status); - clear_bit(ADF_STATUS_STARTED, &accel_dev->status); - return -EFAULT; - } - return 0; -} -EXPORT_SYMBOL_GPL(adf_dev_start); - -/** - * adf_dev_stop() - Stop acceleration service for the given accel device - * @accel_dev: Pointer to acceleration device. - * - * Function notifies all the registered services that the acceleration device - * is shuting down. - * To be used by QAT device specific drivers. - * - * Return: void - */ -void adf_dev_stop(struct adf_accel_dev *accel_dev) -{ - struct service_hndl *service; - struct list_head *list_itr; - bool wait = false; - int ret; - - if (!adf_dev_started(accel_dev) && - !test_bit(ADF_STATUS_STARTING, &accel_dev->status)) - return; - - clear_bit(ADF_STATUS_STARTING, &accel_dev->status); - clear_bit(ADF_STATUS_STARTED, &accel_dev->status); - - if (!list_empty(&accel_dev->crypto_list)) { - qat_algs_unregister(); - qat_asym_algs_unregister(); - } - - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (!test_bit(accel_dev->accel_id, service->start_status)) - continue; - ret = service->event_hld(accel_dev, ADF_EVENT_STOP); - if (!ret) { - clear_bit(accel_dev->accel_id, service->start_status); - } else if (ret == -EAGAIN) { - wait = true; - clear_bit(accel_dev->accel_id, service->start_status); - } - } - - if (wait) - msleep(100); - - if (test_bit(ADF_STATUS_AE_STARTED, &accel_dev->status)) { - if (adf_ae_stop(accel_dev)) - dev_err(&GET_DEV(accel_dev), "failed to stop AE\n"); - else - clear_bit(ADF_STATUS_AE_STARTED, &accel_dev->status); - } -} -EXPORT_SYMBOL_GPL(adf_dev_stop); - -/** - * adf_dev_shutdown() - shutdown acceleration services and data strucutures - * @accel_dev: Pointer to acceleration device - * - * Cleanup the ring data structures and the admin comms and arbitration - * services. - */ -void adf_dev_shutdown(struct adf_accel_dev *accel_dev) -{ - struct adf_hw_device_data *hw_data = accel_dev->hw_device; - struct service_hndl *service; - struct list_head *list_itr; - - if (!hw_data) { - dev_err(&GET_DEV(accel_dev), - "QAT: Failed to shutdown device - hw_data not set\n"); - return; - } - - if (test_bit(ADF_STATUS_AE_UCODE_LOADED, &accel_dev->status)) { - adf_ae_fw_release(accel_dev); - clear_bit(ADF_STATUS_AE_UCODE_LOADED, &accel_dev->status); - } - - if (test_bit(ADF_STATUS_AE_INITIALISED, &accel_dev->status)) { - if (adf_ae_shutdown(accel_dev)) - dev_err(&GET_DEV(accel_dev), - "Failed to shutdown Accel Engine\n"); - else - clear_bit(ADF_STATUS_AE_INITIALISED, - &accel_dev->status); - } - - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (!test_bit(accel_dev->accel_id, service->init_status)) - continue; - if (service->event_hld(accel_dev, ADF_EVENT_SHUTDOWN)) - dev_err(&GET_DEV(accel_dev), - "Failed to shutdown service %s\n", - service->name); - else - clear_bit(accel_dev->accel_id, service->init_status); - } - - hw_data->disable_iov(accel_dev); - - if (test_bit(ADF_STATUS_IRQ_ALLOCATED, &accel_dev->status)) { - hw_data->free_irq(accel_dev); - clear_bit(ADF_STATUS_IRQ_ALLOCATED, &accel_dev->status); - } - - /* Delete configuration only if not restarting */ - if (!test_bit(ADF_STATUS_RESTARTING, &accel_dev->status)) - adf_cfg_del_all(accel_dev); - - if (hw_data->exit_arb) - hw_data->exit_arb(accel_dev); - - if (hw_data->exit_admin_comms) - hw_data->exit_admin_comms(accel_dev); - - adf_cleanup_etr_data(accel_dev); - adf_dev_restore(accel_dev); -} -EXPORT_SYMBOL_GPL(adf_dev_shutdown); - -int adf_dev_restarting_notify(struct adf_accel_dev *accel_dev) -{ - struct service_hndl *service; - struct list_head *list_itr; - - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (service->event_hld(accel_dev, ADF_EVENT_RESTARTING)) - dev_err(&GET_DEV(accel_dev), - "Failed to restart service %s.\n", - service->name); - } - return 0; -} - -int adf_dev_restarted_notify(struct adf_accel_dev *accel_dev) -{ - struct service_hndl *service; - struct list_head *list_itr; - - list_for_each(list_itr, &service_table) { - service = list_entry(list_itr, struct service_hndl, list); - if (service->event_hld(accel_dev, ADF_EVENT_RESTARTED)) - dev_err(&GET_DEV(accel_dev), - "Failed to restart service %s.\n", - service->name); - } - return 0; -} |
