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path: root/drivers/crypto/qat/qat_common/adf_cfg.c
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Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_cfg.c')
-rw-r--r--drivers/crypto/qat/qat_common/adf_cfg.c367
1 files changed, 0 insertions, 367 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_cfg.c b/drivers/crypto/qat/qat_common/adf_cfg.c
deleted file mode 100644
index d0879790561f..000000000000
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ /dev/null
@@ -1,367 +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/slab.h>
-#include <linux/list.h>
-#include <linux/seq_file.h>
-#include "adf_accel_devices.h"
-#include "adf_cfg.h"
-#include "adf_common_drv.h"
-
-static DEFINE_MUTEX(qat_cfg_read_lock);
-
-static void *qat_dev_cfg_start(struct seq_file *sfile, loff_t *pos)
-{
- struct adf_cfg_device_data *dev_cfg = sfile->private;
-
- mutex_lock(&qat_cfg_read_lock);
- return seq_list_start(&dev_cfg->sec_list, *pos);
-}
-
-static int qat_dev_cfg_show(struct seq_file *sfile, void *v)
-{
- struct list_head *list;
- struct adf_cfg_section *sec =
- list_entry(v, struct adf_cfg_section, list);
-
- seq_printf(sfile, "[%s]\n", sec->name);
- list_for_each(list, &sec->param_head) {
- struct adf_cfg_key_val *ptr =
- list_entry(list, struct adf_cfg_key_val, list);
- seq_printf(sfile, "%s = %s\n", ptr->key, ptr->val);
- }
- return 0;
-}
-
-static void *qat_dev_cfg_next(struct seq_file *sfile, void *v, loff_t *pos)
-{
- struct adf_cfg_device_data *dev_cfg = sfile->private;
-
- return seq_list_next(v, &dev_cfg->sec_list, pos);
-}
-
-static void qat_dev_cfg_stop(struct seq_file *sfile, void *v)
-{
- mutex_unlock(&qat_cfg_read_lock);
-}
-
-static const struct seq_operations qat_dev_cfg_sops = {
- .start = qat_dev_cfg_start,
- .next = qat_dev_cfg_next,
- .stop = qat_dev_cfg_stop,
- .show = qat_dev_cfg_show
-};
-
-static int qat_dev_cfg_open(struct inode *inode, struct file *file)
-{
- int ret = seq_open(file, &qat_dev_cfg_sops);
-
- if (!ret) {
- struct seq_file *seq_f = file->private_data;
-
- seq_f->private = inode->i_private;
- }
- return ret;
-}
-
-static const struct file_operations qat_dev_cfg_fops = {
- .open = qat_dev_cfg_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release
-};
-
-/**
- * adf_cfg_dev_add() - Create an acceleration device configuration table.
- * @accel_dev: Pointer to acceleration device.
- *
- * Function creates a configuration table for the given acceleration device.
- * The table stores device specific config values.
- * To be used by QAT device specific drivers.
- *
- * Return: 0 on success, error code otherwise.
- */
-int adf_cfg_dev_add(struct adf_accel_dev *accel_dev)
-{
- struct adf_cfg_device_data *dev_cfg_data;
-
- dev_cfg_data = kzalloc(sizeof(*dev_cfg_data), GFP_KERNEL);
- if (!dev_cfg_data)
- return -ENOMEM;
- INIT_LIST_HEAD(&dev_cfg_data->sec_list);
- init_rwsem(&dev_cfg_data->lock);
- accel_dev->cfg = dev_cfg_data;
-
- /* accel_dev->debugfs_dir should always be non-NULL here */
- dev_cfg_data->debug = debugfs_create_file("dev_cfg", S_IRUSR,
- accel_dev->debugfs_dir,
- dev_cfg_data,
- &qat_dev_cfg_fops);
- if (!dev_cfg_data->debug) {
- dev_err(&GET_DEV(accel_dev),
- "Failed to create qat cfg debugfs entry.\n");
- kfree(dev_cfg_data);
- accel_dev->cfg = NULL;
- return -EFAULT;
- }
- return 0;
-}
-EXPORT_SYMBOL_GPL(adf_cfg_dev_add);
-
-static void adf_cfg_section_del_all(struct list_head *head);
-
-void adf_cfg_del_all(struct adf_accel_dev *accel_dev)
-{
- struct adf_cfg_device_data *dev_cfg_data = accel_dev->cfg;
-
- down_write(&dev_cfg_data->lock);
- adf_cfg_section_del_all(&dev_cfg_data->sec_list);
- up_write(&dev_cfg_data->lock);
- clear_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
-}
-
-/**
- * adf_cfg_dev_remove() - Clears acceleration device configuration table.
- * @accel_dev: Pointer to acceleration device.
- *
- * Function removes configuration table from the given acceleration device
- * and frees all allocated memory.
- * To be used by QAT device specific drivers.
- *
- * Return: void
- */
-void adf_cfg_dev_remove(struct adf_accel_dev *accel_dev)
-{
- struct adf_cfg_device_data *dev_cfg_data = accel_dev->cfg;
-
- if (!dev_cfg_data)
- return;
-
- down_write(&dev_cfg_data->lock);
- adf_cfg_section_del_all(&dev_cfg_data->sec_list);
- up_write(&dev_cfg_data->lock);
- debugfs_remove(dev_cfg_data->debug);
- kfree(dev_cfg_data);
- accel_dev->cfg = NULL;
-}
-EXPORT_SYMBOL_GPL(adf_cfg_dev_remove);
-
-static void adf_cfg_keyval_add(struct adf_cfg_key_val *new,
- struct adf_cfg_section *sec)
-{
- list_add_tail(&new->list, &sec->param_head);
-}
-
-static void adf_cfg_keyval_del_all(struct list_head *head)
-{
- struct list_head *list_ptr, *tmp;
-
- list_for_each_prev_safe(list_ptr, tmp, head) {
- struct adf_cfg_key_val *ptr =
- list_entry(list_ptr, struct adf_cfg_key_val, list);
- list_del(list_ptr);
- kfree(ptr);
- }
-}
-
-static void adf_cfg_section_del_all(struct list_head *head)
-{
- struct adf_cfg_section *ptr;
- struct list_head *list, *tmp;
-
- list_for_each_prev_safe(list, tmp, head) {
- ptr = list_entry(list, struct adf_cfg_section, list);
- adf_cfg_keyval_del_all(&ptr->param_head);
- list_del(list);
- kfree(ptr);
- }
-}
-
-static struct adf_cfg_key_val *adf_cfg_key_value_find(struct adf_cfg_section *s,
- const char *key)
-{
- struct list_head *list;
-
- list_for_each(list, &s->param_head) {
- struct adf_cfg_key_val *ptr =
- list_entry(list, struct adf_cfg_key_val, list);
- if (!strcmp(ptr->key, key))
- return ptr;
- }
- return NULL;
-}
-
-static struct adf_cfg_section *adf_cfg_sec_find(struct adf_accel_dev *accel_dev,
- const char *sec_name)
-{
- struct adf_cfg_device_data *cfg = accel_dev->cfg;
- struct list_head *list;
-
- list_for_each(list, &cfg->sec_list) {
- struct adf_cfg_section *ptr =
- list_entry(list, struct adf_cfg_section, list);
- if (!strcmp(ptr->name, sec_name))
- return ptr;
- }
- return NULL;
-}
-
-static int adf_cfg_key_val_get(struct adf_accel_dev *accel_dev,
- const char *sec_name,
- const char *key_name,
- char *val)
-{
- struct adf_cfg_section *sec = adf_cfg_sec_find(accel_dev, sec_name);
- struct adf_cfg_key_val *keyval = NULL;
-
- if (sec)
- keyval = adf_cfg_key_value_find(sec, key_name);
- if (keyval) {
- memcpy(val, keyval->val, ADF_CFG_MAX_VAL_LEN_IN_BYTES);
- return 0;
- }
- return -1;
-}
-
-/**
- * adf_cfg_add_key_value_param() - Add key-value config entry to config table.
- * @accel_dev: Pointer to acceleration device.
- * @section_name: Name of the section where the param will be added
- * @key: The key string
- * @val: Value pain for the given @key
- * @type: Type - string, int or address
- *
- * Function adds configuration key - value entry in the appropriate section
- * in the given acceleration device
- * To be used by QAT device specific drivers.
- *
- * Return: 0 on success, error code otherwise.
- */
-int adf_cfg_add_key_value_param(struct adf_accel_dev *accel_dev,
- const char *section_name,
- const char *key, const void *val,
- enum adf_cfg_val_type type)
-{
- struct adf_cfg_device_data *cfg = accel_dev->cfg;
- struct adf_cfg_key_val *key_val;
- struct adf_cfg_section *section = adf_cfg_sec_find(accel_dev,
- section_name);
- if (!section)
- return -EFAULT;
-
- key_val = kzalloc(sizeof(*key_val), GFP_KERNEL);
- if (!key_val)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&key_val->list);
- strlcpy(key_val->key, key, sizeof(key_val->key));
-
- if (type == ADF_DEC) {
- snprintf(key_val->val, ADF_CFG_MAX_VAL_LEN_IN_BYTES,
- "%ld", (*((long *)val)));
- } else if (type == ADF_STR) {
- strlcpy(key_val->val, (char *)val, sizeof(key_val->val));
- } else if (type == ADF_HEX) {
- snprintf(key_val->val, ADF_CFG_MAX_VAL_LEN_IN_BYTES,
- "0x%lx", (unsigned long)val);
- } else {
- dev_err(&GET_DEV(accel_dev), "Unknown type given.\n");
- kfree(key_val);
- return -1;
- }
- key_val->type = type;
- down_write(&cfg->lock);
- adf_cfg_keyval_add(key_val, section);
- up_write(&cfg->lock);
- return 0;
-}
-EXPORT_SYMBOL_GPL(adf_cfg_add_key_value_param);
-
-/**
- * adf_cfg_section_add() - Add config section entry to config table.
- * @accel_dev: Pointer to acceleration device.
- * @name: Name of the section
- *
- * Function adds configuration section where key - value entries
- * will be stored.
- * To be used by QAT device specific drivers.
- *
- * Return: 0 on success, error code otherwise.
- */
-int adf_cfg_section_add(struct adf_accel_dev *accel_dev, const char *name)
-{
- struct adf_cfg_device_data *cfg = accel_dev->cfg;
- struct adf_cfg_section *sec = adf_cfg_sec_find(accel_dev, name);
-
- if (sec)
- return 0;
-
- sec = kzalloc(sizeof(*sec), GFP_KERNEL);
- if (!sec)
- return -ENOMEM;
-
- strlcpy(sec->name, name, sizeof(sec->name));
- INIT_LIST_HEAD(&sec->param_head);
- down_write(&cfg->lock);
- list_add_tail(&sec->list, &cfg->sec_list);
- up_write(&cfg->lock);
- return 0;
-}
-EXPORT_SYMBOL_GPL(adf_cfg_section_add);
-
-int adf_cfg_get_param_value(struct adf_accel_dev *accel_dev,
- const char *section, const char *name,
- char *value)
-{
- struct adf_cfg_device_data *cfg = accel_dev->cfg;
- int ret;
-
- down_read(&cfg->lock);
- ret = adf_cfg_key_val_get(accel_dev, section, name, value);
- up_read(&cfg->lock);
- return ret;
-}