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path: root/drivers/crypto/qat/qat_common/adf_init.c
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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.c391
1 files changed, 0 insertions, 391 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 33a9a46d6949..000000000000
--- a/drivers/crypto/qat/qat_common/adf_init.c
+++ /dev/null
@@ -1,391 +0,0 @@
-// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
-/* Copyright(c) 2014 - 2020 Intel Corporation */
-#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;
- int ret;
-
- 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) &&
- !accel_dev->is_vf) {
- 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_device && hw_data->init_device(accel_dev)) {
- dev_err(&GET_DEV(accel_dev), "Failed to initialize device\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;
- }
-
- 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);
-
- hw_data->enable_ints(accel_dev);
- hw_data->enable_error_correction(accel_dev);
-
- ret = hw_data->pfvf_ops.enable_comms(accel_dev);
- if (ret)
- return ret;
-
- if (!test_bit(ADF_STATUS_CONFIGURED, &accel_dev->status) &&
- accel_dev->is_vf) {
- if (qat_crypto_vf_dev_config(accel_dev))
- return -EFAULT;
- }
-
- /*
- * 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);
- }
-
- 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;
- }
-
- /* Set ssm watch dog timer */
- if (hw_data->set_ssm_wdtimer)
- hw_data->set_ssm_wdtimer(accel_dev);
-
- /* Enable Power Management */
- if (hw_data->enable_pm && hw_data->enable_pm(accel_dev)) {
- dev_err(&GET_DEV(accel_dev), "Failed to configure Power Management\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;
-}
-
-int adf_dev_shutdown_cache_cfg(struct adf_accel_dev *accel_dev)
-{
- char services[ADF_CFG_MAX_VAL_LEN_IN_BYTES] = {0};
- int ret;
-
- ret = adf_cfg_get_param_value(accel_dev, ADF_GENERAL_SEC,
- ADF_SERVICES_ENABLED, services);
-
- adf_dev_stop(accel_dev);
- adf_dev_shutdown(accel_dev);
-
- if (!ret) {
- ret = adf_cfg_section_add(accel_dev, ADF_GENERAL_SEC);
- if (ret)
- return ret;
-
- ret = adf_cfg_add_key_value_param(accel_dev, ADF_GENERAL_SEC,
- ADF_SERVICES_ENABLED,
- services, ADF_STR);
- if (ret)
- return ret;
- }
-
- return 0;
-}