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Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_init.c')
-rw-r--r--drivers/crypto/qat/qat_common/adf_init.c384
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;
-}