linux-imx

/*

 *  scsi.c Copyright (C) 1992 Drew Eckhardt

 *         Copyright (C) 1993, 1994, 1995, 1999 Eric Youngdale

 *         Copyright (C) 2002, 2003 Christoph Hellwig

 *

 *  generic mid-level SCSI driver

 *      Initial versions: Drew Eckhardt

 *      Subsequent revisions: Eric Youngdale

 *

 *  <drew@colorado.edu>

 *

 *  Bug correction thanks go to :

 *      Rik Faith <faith@cs.unc.edu>

 *      Tommy Thorn <tthorn>

 *      Thomas Wuensche <tw@fgb1.fgb.mw.tu-muenchen.de>

 *

 *  Modified by Eric Youngdale eric@andante.org or ericy@gnu.ai.mit.edu to

 *  add scatter-gather, multiple outstanding request, and other

 *  enhancements.

 *

 *  Native multichannel, wide scsi, /proc/scsi and hot plugging

 *  support added by Michael Neuffer <mike@i-connect.net>

 *

 *  Added request_module("scsi_hostadapter") for kerneld:

 *  (Put an "alias scsi_hostadapter your_hostadapter" in /etc/modprobe.conf)

 *  Bjorn Ekwall  <bj0rn@blox.se>

 *  (changed to kmod)

 *

 *  Major improvements to the timeout, abort, and reset processing,

 *  as well as performance modifications for large queue depths by

 *  Leonard N. Zubkoff <lnz@dandelion.com>

 *

 *  Converted cli() code to spinlocks, Ingo Molnar

 *

 *  Jiffies wrap fixes (host->resetting), 3 Dec 1998 Andrea Arcangeli

 *

 *  out_of_space hacks, D. Gilbert (dpg) 990608

 */

​

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/kernel.h>

#include <linux/timer.h>

#include <linux/string.h>

#include <linux/slab.h>

#include <linux/blkdev.h>

#include <linux/delay.h>

#include <linux/init.h>

#include <linux/completion.h>

#include <linux/unistd.h>

#include <linux/spinlock.h>

#include <linux/kmod.h>

#include <linux/interrupt.h>

#include <linux/notifier.h>

#include <linux/cpu.h>

#include <linux/mutex.h>

#include <linux/async.h>

#include <asm/unaligned.h>

​

#include <scsi/scsi.h>

#include <scsi/scsi_cmnd.h>

#include <scsi/scsi_dbg.h>

#include <scsi/scsi_device.h>

#include <scsi/scsi_driver.h>

#include <scsi/scsi_eh.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_tcq.h>

​

#include "scsi_priv.h"

#include "scsi_logging.h"

​

#define CREATE_TRACE_POINTS

#include <trace/events/scsi.h>

​

/*

 * Definitions and constants.

 */

​

/*

 * Note - the initial logging level can be set here to log events at boot time.

 * After the system is up, you may enable logging via the /proc interface.

 */

unsigned int scsi_logging_level;

#if defined(CONFIG_SCSI_LOGGING)

EXPORT_SYMBOL(scsi_logging_level);

#endif

​

/* sd, scsi core and power management need to coordinate flushing async actions */

ASYNC_DOMAIN(scsi_sd_probe_domain);

EXPORT_SYMBOL(scsi_sd_probe_domain);

​

/*