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/*
* Microsemi Switchtec(tm) PCIe Management Driver
* Copyright (c) 2017, Microsemi Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
*/
#include <linux/switchtec.h>
#include <linux/module.h>
MODULE_DESCRIPTION("Microsemi Switchtec(tm) NTB Driver");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Microsemi Corporation");
struct switchtec_ntb {
struct switchtec_dev *stdev;
};
static int switchtec_ntb_add(struct device *dev,
struct class_interface *class_intf)
{
struct switchtec_dev *stdev = to_stdev(dev);
struct switchtec_ntb *sndev;
stdev->sndev = NULL;
if (stdev->pdev->class != MICROSEMI_NTB_CLASSCODE)
return -ENODEV;
sndev = kzalloc_node(sizeof(*sndev), GFP_KERNEL, dev_to_node(dev));
if (!sndev)
return -ENOMEM;
sndev->stdev = stdev;
stdev->sndev = sndev;
dev_info(dev, "NTB device registered");
return 0;
}
void switchtec_ntb_remove(struct device *dev,
struct class_interface *class_intf)
{
struct switchtec_dev *stdev = to_stdev(dev);
struct switchtec_ntb *sndev = stdev->sndev;
if (!sndev)
return;
stdev->sndev = NULL;
kfree(sndev);
dev_info(dev, "ntb device unregistered");
}
static struct class_interface switchtec_interface = {
.add_dev = switchtec_ntb_add,
.remove_dev = switchtec_ntb_remove,
};
static int __init switchtec_ntb_init(void)
{
switchtec_interface.class = switchtec_class;
return class_interface_register(&switchtec_interface);
}
module_init(switchtec_ntb_init);
static void __exit switchtec_ntb_exit(void)
{
class_interface_unregister(&switchtec_interface);
}
module_exit(switchtec_ntb_exit);
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