1fea05a26SEd Cashin /* Copyright (c) 2012 Coraid, Inc. See COPYING for GPL terms. */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * aoemain.c 41da177e4SLinus Torvalds * Module initialization routines, discover timer 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds #include <linux/hdreg.h> 81da177e4SLinus Torvalds #include <linux/blkdev.h> 91da177e4SLinus Torvalds #include <linux/module.h> 10e9bb8fb0SDavid S. Miller #include <linux/skbuff.h> 111da177e4SLinus Torvalds #include "aoe.h" 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 141da177e4SLinus Torvalds MODULE_AUTHOR("Sam Hopkins <sah@coraid.com>"); 1502edb05eSEd L. Cashin MODULE_DESCRIPTION("AoE block/char driver for 2.6.2 and newer 2.6 kernels"); 161da177e4SLinus Torvalds MODULE_VERSION(VERSION); 171da177e4SLinus Torvalds 185ea22086SKees Cook static struct timer_list timer; 191da177e4SLinus Torvalds 205ea22086SKees Cook static void discover_timer(struct timer_list *t) 211da177e4SLinus Torvalds { 225ea22086SKees Cook mod_timer(t, jiffies + HZ * 60); /* one minute */ 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds aoecmd_cfg(0xffff, 0xff); 251da177e4SLinus Torvalds } 261da177e4SLinus Torvalds 27e7cc005fSChengguang Xu static void __exit 281da177e4SLinus Torvalds aoe_exit(void) 291da177e4SLinus Torvalds { 305ea22086SKees Cook del_timer_sync(&timer); 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds aoenet_exit(); 331da177e4SLinus Torvalds unregister_blkdev(AOE_MAJOR, DEVICE_NAME); 34896831f5SEd Cashin aoecmd_exit(); 351da177e4SLinus Torvalds aoechr_exit(); 361da177e4SLinus Torvalds aoedev_exit(); 371da177e4SLinus Torvalds aoeblk_exit(); /* free cache after de-allocating bufs */ 381da177e4SLinus Torvalds } 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds static int __init 411da177e4SLinus Torvalds aoe_init(void) 421da177e4SLinus Torvalds { 431da177e4SLinus Torvalds int ret; 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds ret = aoedev_init(); 461da177e4SLinus Torvalds if (ret) 471da177e4SLinus Torvalds return ret; 481da177e4SLinus Torvalds ret = aoechr_init(); 491da177e4SLinus Torvalds if (ret) 501da177e4SLinus Torvalds goto chr_fail; 511da177e4SLinus Torvalds ret = aoeblk_init(); 521da177e4SLinus Torvalds if (ret) 531da177e4SLinus Torvalds goto blk_fail; 541da177e4SLinus Torvalds ret = aoenet_init(); 551da177e4SLinus Torvalds if (ret) 561da177e4SLinus Torvalds goto net_fail; 57896831f5SEd Cashin ret = aoecmd_init(); 58896831f5SEd Cashin if (ret) 59896831f5SEd Cashin goto cmd_fail; 601da177e4SLinus Torvalds ret = register_blkdev(AOE_MAJOR, DEVICE_NAME); 611da177e4SLinus Torvalds if (ret < 0) { 62a12c93f0SEd L. Cashin printk(KERN_ERR "aoe: can't register major\n"); 631da177e4SLinus Torvalds goto blkreg_fail; 641da177e4SLinus Torvalds } 65a12c93f0SEd L. Cashin printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION); 665ea22086SKees Cook 675ea22086SKees Cook timer_setup(&timer, discover_timer, 0); 685ea22086SKees Cook discover_timer(&timer); 691da177e4SLinus Torvalds return 0; 701da177e4SLinus Torvalds blkreg_fail: 71896831f5SEd Cashin aoecmd_exit(); 72896831f5SEd Cashin cmd_fail: 731da177e4SLinus Torvalds aoenet_exit(); 741da177e4SLinus Torvalds net_fail: 751da177e4SLinus Torvalds aoeblk_exit(); 761da177e4SLinus Torvalds blk_fail: 771da177e4SLinus Torvalds aoechr_exit(); 781da177e4SLinus Torvalds chr_fail: 791da177e4SLinus Torvalds aoedev_exit(); 801da177e4SLinus Torvalds 81a12c93f0SEd L. Cashin printk(KERN_INFO "aoe: initialisation failure.\n"); 821da177e4SLinus Torvalds return ret; 831da177e4SLinus Torvalds } 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds module_init(aoe_init); 861da177e4SLinus Torvalds module_exit(aoe_exit); 871da177e4SLinus Torvalds 88