diff options
Diffstat (limited to 'drivers/block/aoe/aoemain.c')
-rw-r--r-- | drivers/block/aoe/aoemain.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c new file mode 100644 index 000000000..6238c4c87 --- /dev/null +++ b/drivers/block/aoe/aoemain.c @@ -0,0 +1,95 @@ +/* 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); + |