acec05060d
Change license to BSD-3-Clause Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
121 lines
2.4 KiB
C
121 lines
2.4 KiB
C
/*
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* Copyright(c) 2012-2021 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/vmalloc.h>
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#include "cas_disk_defs.h"
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#include "cas_disk.h"
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#include "disk.h"
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#include "exp_obj.h"
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#include "sysfs.h"
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/* Layer information. */
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MODULE_AUTHOR("Intel(R) Corporation");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_VERSION(CAS_VERSION);
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static int iface_version = CASDSK_IFACE_VERSION;
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module_param(iface_version, int, (S_IRUSR | S_IRGRP));
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struct casdsk_module *casdsk_module;
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uint32_t casdsk_get_version(void)
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{
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return CASDSK_IFACE_VERSION;
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}
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EXPORT_SYMBOL(casdsk_get_version);
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static void _casdsk_module_release(struct kobject *kobj)
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{
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struct casdsk_module *mod;
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CASDSK_DEBUG_TRACE();
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BUG_ON(!kobj);
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mod = container_of(kobj, struct casdsk_module, kobj);
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BUG_ON(!mod);
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kfree(mod);
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}
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static struct kobj_type _casdsk_module_ktype = {
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.release = _casdsk_module_release,
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};
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static int __init casdsk_init_kobjects(void)
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{
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int result = 0;
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CASDSK_DEBUG_TRACE();
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kobject_init(&casdsk_module->kobj, &_casdsk_module_ktype);
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result = kobject_add(&casdsk_module->kobj, kernel_kobj, "cas_disk");
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if (result)
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CASDSK_DEBUG_ERROR("Cannot register kobject");
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return result;
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}
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static int __init casdsk_init_module(void)
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{
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int result = 0;
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casdsk_module = kzalloc(sizeof(*casdsk_module), GFP_KERNEL);
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if (!casdsk_module) {
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result = -ENOMEM;
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goto error_kmalloc;
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}
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mutex_init(&casdsk_module->lock);
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mutex_lock(&casdsk_module->lock);
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result = casdsk_init_exp_objs();
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if (result)
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goto error_init_exp_objs;
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result = casdsk_init_disks();
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if (result)
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goto error_init_disks;
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result = casdsk_init_kobjects();
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if (result)
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goto error_kobjects;
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mutex_unlock(&casdsk_module->lock);
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printk(CASDSK_KERN_INFO "%s Version %s (%s)::Module loaded successfully\n",
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CASDSK_LOGO, CAS_VERSION, CAS_KERNEL);
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return result;
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error_kobjects:
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casdsk_deinit_disks();
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error_init_disks:
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casdsk_deinit_exp_objs();
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error_init_exp_objs:
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mutex_unlock(&casdsk_module->lock);
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kfree(casdsk_module);
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error_kmalloc:
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return result;
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}
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module_init(casdsk_init_module);
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static void __exit casdsk_deinit_kobjects(void)
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{
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kobject_put(&casdsk_module->kobj);
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}
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static void __exit casdsk_exit_module(void)
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{
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casdsk_disk_shutdown_all();
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casdsk_deinit_disks();
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casdsk_deinit_exp_objs();
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casdsk_deinit_kobjects();
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}
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module_exit(casdsk_exit_module);
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