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/* Copyright (c) 2012 Coraid, Inc. See COPYING for GPL terms. */
/*
* aoemain.c
* Module initialization routines, discover timer
*/
#include <linux/hdreg.h>
#include <linux/blkdev.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include "aoe.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Sam Hopkins <sah@coraid.com>");
MODULE_DESCRIPTION("AoE block/char driver for 2.6.2 and newer 2.6 kernels");
MODULE_VERSION(VERSION);
static struct timer_list timer;
struct workqueue_struct *aoe_wq;
static void discover_timer(struct timer_list *t)
{
mod_timer(t, jiffies + HZ * 60); /* one minute */
aoecmd_cfg(0xffff, 0xff);
}
static void __exit
aoe_exit(void)
{
del_timer_sync(&timer);
aoenet_exit();
unregister_blkdev(AOE_MAJOR, DEVICE_NAME);
aoecmd_exit();
aoechr_exit();
aoedev_exit();
aoeblk_exit(); /* free cache after de-allocating bufs */
destroy_workqueue(aoe_wq);
}
static int __init
aoe_init(void)
{
int ret;
aoe_wq = alloc_workqueue("aoe_wq", 0, 0);
if (!aoe_wq)
return -ENOMEM;
ret = aoedev_init();
if (ret)
goto dev_fail;
ret = aoechr_init();
if (ret)
goto chr_fail;
ret = aoeblk_init();
if (ret)
goto blk_fail;
ret = aoenet_init();
if (ret)
goto net_fail;
ret = aoecmd_init();
if (ret)
goto cmd_fail;
ret = register_blkdev(AOE_MAJOR, DEVICE_NAME);
if (ret < 0) {
printk(KERN_ERR "aoe: can't register major\n");
goto blkreg_fail;
}
printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION);
timer_setup(&timer, discover_timer, 0);
discover_timer(&timer);
return 0;
blkreg_fail:
aoecmd_exit();
cmd_fail:
aoenet_exit();
net_fail:
aoeblk_exit();
blk_fail:
aoechr_exit();
chr_fail:
aoedev_exit();
dev_fail:
destroy_workqueue(aoe_wq);
printk(KERN_INFO "aoe: initialisation failure.\n");
return ret;
}
module_init(aoe_init);
module_exit(aoe_exit);
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