mptbase.h

优龙2410linux2.6.8内核源代码

/*
 *  linux/drivers/message/fusion/mptbase.h
 *      High performance SCSI + LAN / Fibre Channel device drivers.
 *      For use with PCI chip/adapter(s):
 *          LSIFC9xx/LSI409xx Fibre Channel
 *      running LSI Logic Fusion MPT (Message Passing Technology) firmware.
 *
 *  Credits:
 *     (see mptbase.c)
 *
 *  Copyright (c) 1999-2004 LSI Logic Corporation
 *  Originally By: Steven J. Ralston
 *  (mailto:[e-mail])
 *  (mailto:[e-mail])
 *
 *  $Id: mptbase.h,v 1.144 2003/01/28 21:31:56 pdelaney Exp $
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; version 2 of the License.

    This program is distributed in the hope that 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.

    NO WARRANTY
    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
    solely responsible for determining the appropriateness of using and
    distributing the Program and assumes all risks associated with its
    exercise of rights under this Agreement, including but not limited to
    the risks and costs of program errors, damage to or loss of data,
    programs or equipment, and unavailability or interruption of operations.

    DISCLAIMER OF LIABILITY
    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef MPTBASE_H_INCLUDED
#define MPTBASE_H_INCLUDED
/*{-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#include <linux/version.h>
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/pci.h>

#include "scsi3.h"		/* SCSI defines */

#include "lsi/mpi_type.h"
#include "lsi/mpi.h"		/* Fusion MPI(nterface) basic defs */
#include "lsi/mpi_ioc.h"	/* Fusion MPT IOC(ontroller) defs */
#include "lsi/mpi_cnfg.h"	/* IOC configuration support */
#include "lsi/mpi_init.h"	/* SCSI Host (initiator) protocol support */
#include "lsi/mpi_lan.h"	/* LAN over FC protocol support */
#include "lsi/mpi_raid.h"	/* Integrated Mirroring support */

#include "lsi/mpi_fc.h"		/* Fibre Channel (lowlevel) support */
#include "lsi/mpi_targ.h"	/* SCSI/FCP Target protcol support */
#include "lsi/mpi_tool.h"	/* Tools support */
#include "lsi/fc_log.h"

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#ifndef MODULEAUTHOR
#define MODULEAUTHOR	"LSI Logic Corporation"
#endif

#ifndef COPYRIGHT
#define COPYRIGHT	"Copyright (c) 1999-2004 " MODULEAUTHOR
#endif

#define MPT_LINUX_VERSION_COMMON	"3.01.09"
#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.01.09"
#define WHAT_MAGIC_STRING		"@" "(" "#" ")"

#define show_mptmod_ver(s,ver)  \
	printk(KERN_INFO "%s %s\n", s, ver);

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *  Fusion MPT(linux) driver configurable stuff...
 */
#define MPT_MAX_ADAPTERS		18
#define MPT_MAX_PROTOCOL_DRIVERS	16
#define MPT_MAX_BUS			1	/* Do not change */
#define MPT_MAX_FC_DEVICES		255
#define MPT_MAX_SCSI_DEVICES		16
#define MPT_LAST_LUN			255
#define MPT_SENSE_BUFFER_ALLOC		64
	/* allow for 256 max sense alloc, but only 255 max request */
#if MPT_SENSE_BUFFER_ALLOC >= 256
#	undef MPT_SENSE_BUFFER_ALLOC
#	define MPT_SENSE_BUFFER_ALLOC	256
#	define MPT_SENSE_BUFFER_SIZE	255
#else
#	define MPT_SENSE_BUFFER_SIZE	MPT_SENSE_BUFFER_ALLOC
#endif

#define MPT_NAME_LENGTH			32

#define MPT_PROCFS_MPTBASEDIR		"mpt"
						/* chg it to "driver/fusion" ? */
#define MPT_PROCFS_SUMMARY_ALL_NODE		MPT_PROCFS_MPTBASEDIR "/summary"
#define MPT_PROCFS_SUMMARY_ALL_PATHNAME		"/proc/" MPT_PROCFS_SUMMARY_ALL_NODE
#define MPT_FW_REV_MAGIC_ID_STRING		"FwRev="

#define  MPT_MAX_REQ_DEPTH		1023
#define  MPT_DEFAULT_REQ_DEPTH		256
#define  MPT_MIN_REQ_DEPTH		128

#define  MPT_MAX_REPLY_DEPTH		MPT_MAX_REQ_DEPTH
#define  MPT_DEFAULT_REPLY_DEPTH	128
#define  MPT_MIN_REPLY_DEPTH		8
#define  MPT_MAX_REPLIES_PER_ISR	32

#define  MPT_MAX_FRAME_SIZE		128
#define  MPT_DEFAULT_FRAME_SIZE		128

#define  MPT_REPLY_FRAME_SIZE		0x40  /* Must be a multiple of 8 */

#define  MPT_SG_REQ_128_SCALE		1
#define  MPT_SG_REQ_96_SCALE		2
#define  MPT_SG_REQ_64_SCALE		4

#define	 CAN_SLEEP			1
#define  NO_SLEEP			0

#define MPT_COALESCING_TIMEOUT		0x10

/*
 * SCSI transfer rate defines.
 */
#define MPT_ULTRA320			0x08
#define MPT_ULTRA160			0x09
#define MPT_ULTRA2			0x0A
#define MPT_ULTRA			0x0C
#define MPT_FAST			0x19
#define MPT_SCSI			0x32
#define MPT_ASYNC			0xFF

#define MPT_NARROW			0
#define MPT_WIDE			1

#define C0_1030				0x08
#define XL_929				0x01


/*
 *	Try to keep these at 2^N-1
 */
#define MPT_FC_CAN_QUEUE	127
#define MPT_SCSI_CAN_QUEUE	127

/*
 * Set the MAX_SGE value based on user input.
 */
#ifdef  CONFIG_FUSION_MAX_SGE
#if     CONFIG_FUSION_MAX_SGE  < 16
#define MPT_SCSI_SG_DEPTH	16
#elif   CONFIG_FUSION_MAX_SGE  > 128
#define MPT_SCSI_SG_DEPTH	128
#else
#define MPT_SCSI_SG_DEPTH	CONFIG_FUSION_MAX_SGE
#endif
#else
#define MPT_SCSI_SG_DEPTH	40
#endif

#ifdef __KERNEL__	/* { */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#include <linux/proc_fs.h>

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 * Attempt semi-consistent error & warning msgs across
 * MPT drivers.  NOTE: Users of these macro defs must
 * themselves define their own MYNAM.
 */
#define MYIOC_s_INFO_FMT		KERN_INFO MYNAM ": %s: "
#define MYIOC_s_NOTE_FMT		KERN_NOTICE MYNAM ": %s: "
#define MYIOC_s_WARN_FMT		KERN_WARNING MYNAM ": %s: WARNING - "
#define MYIOC_s_ERR_FMT			KERN_ERR MYNAM ": %s: ERROR - "

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *  MPT protocol driver defs...
 */
typedef enum {
	MPTBASE_DRIVER,		/* MPT base class */
	MPTCTL_DRIVER,		/* MPT ioctl class */
	MPTSCSIH_DRIVER,	/* MPT SCSI host (initiator) class */
	MPTLAN_DRIVER,		/* MPT LAN class */
	MPTSTM_DRIVER,		/* MPT SCSI target mode class */
	MPTDMP_DRIVER,		/* MPT Dynamic Multi-pathing class */
	MPTUNKNOWN_DRIVER
} MPT_DRIVER_CLASS;

struct mpt_pci_driver{
	int  (*probe) (struct pci_dev *dev, const struct pci_device_id *id);
	void (*remove) (struct pci_dev *dev);
	void (*shutdown) (struct device * dev);
#ifdef CONFIG_PM
	int  (*resume) (struct pci_dev *dev);
	int  (*suspend) (struct pci_dev *dev, u32 state);
#endif
};

/*
 *  MPT adapter / port / bus / device info structures...
 */

typedef union _MPT_FRAME_TRACKER {
	struct {
		struct _MPT_FRAME_HDR	*forw;
		struct _MPT_FRAME_HDR	*back;
		u32			 arg1;
		u32			 pad;
		void			*argp1;
	} linkage;
	/*
	 * NOTE: When request frames are free, on the linkage structure
	 * contets are valid.  All other values are invalid.
	 * In particular, do NOT reply on offset [2]
	 * (in words) being the * message context.
	 * The message context must be reset (computed via base address
	 * + an offset) prior to issuing any command.
	 *
	 * NOTE2: On non-32-bit systems, where pointers are LARGE,
	 * using the linkage pointers destroys our sacred MsgContext
	 * field contents.  But we don't care anymore because these
	 * are now reset in mpt_put_msg_frame() just prior to sending
	 * a request off to the IOC.
	 */
	struct {
		u32 __hdr[2];
		/*
		 * The following _MUST_ match the location of the
		 * MsgContext field in the MPT message headers.
		 */
		union {
			u32		 MsgContext;
			struct {
				u16	 req_idx;	/* Request index */
				u8	 cb_idx;	/* callback function index */
				u8	 rsvd;
			} fld;
		} msgctxu;
	} hwhdr;
	/*
	 * Remark: 32 bit identifier:
	 *  31-24: reserved
	 *  23-16: call back index
	 *  15-0 : request index
	 */
} MPT_FRAME_TRACKER;

/*
 *  We might want to view/access a frame as:
 *    1) generic request header
 *    2) SCSIIORequest
 *    3) SCSIIOReply
 *    4) MPIDefaultReply
 *    5) frame tracker
 */
typedef struct _MPT_FRAME_HDR {
	union {
		MPIHeader_t		hdr;
		SCSIIORequest_t		scsireq;
		SCSIIOReply_t		sreply;
		ConfigReply_t		configreply;
		MPIDefaultReply_t	reply;
		MPT_FRAME_TRACKER	frame;
	} u;
} MPT_FRAME_HDR;

#define MPT_REQ_MSGFLAGS_DROPME		0x80

/* Used for tracking the free request frames
 * and free reply frames.
 */
typedef struct _MPT_Q_TRACKER {
	MPT_FRAME_HDR	*head;
	MPT_FRAME_HDR	*tail;
} MPT_Q_TRACKER;


typedef struct _MPT_SGL_HDR {
	SGESimple32_t	 sge[1];
} MPT_SGL_HDR;

typedef struct _MPT_SGL64_HDR {
	SGESimple64_t	 sge[1];
} MPT_SGL64_HDR;


typedef struct _Q_ITEM {
	struct _Q_ITEM	*forw;
	struct _Q_ITEM	*back;
} Q_ITEM;

typedef struct _Q_TRACKER {
	struct _Q_ITEM	*head;
	struct _Q_ITEM	*tail;
} Q_TRACKER;

typedef struct _MPT_DONE_Q {
	struct _MPT_DONE_Q	*forw;
	struct _MPT_DONE_Q	*back;
	void			*argp;
} MPT_DONE_Q;

typedef struct _DONE_Q_TRACKER {
	MPT_DONE_Q	*head;
	MPT_DONE_Q	*tail;
} DONE_Q_TRACKER;

/*
 *  Chip-specific stuff... FC929 delineates break between
 *  FC and Parallel SCSI parts. Do NOT re-order.
 */

typedef enum {
	FC919X = 0x0819,
	FC929X = 0x0829,
	FC909 = 0x0909,
	FC919 = 0x0919,
	FC929 = 0x0929,
	C1030 = 0x1030,
	C1035 = 0x1035,
	FCUNK = 0xFBAD
} CHIP_TYPE;

/*
 *  System interface register set
 */

typedef struct _SYSIF_REGS
{
	u32	Doorbell;	/* 00     System<->IOC Doorbell reg  */
	u32	WriteSequence;	/* 04     Write Sequence register    */
	u32	Diagnostic;	/* 08     Diagnostic register        */
	u32	TestBase;	/* 0C     Test Base Address          */
	u32	DiagRwData;	/* 10     Read Write Data (fw download)   */
	u32	DiagRwAddress;	/* 14     Read Write Address (fw download)*/
	u32	Reserved1[6];	/* 18-2F  reserved for future use    */
	u32	IntStatus;	/* 30     Interrupt Status           */
	u32	IntMask;	/* 34     Interrupt Mask             */
	u32	Reserved2[2];	/* 38-3F  reserved for future use    */
	u32	RequestFifo;	/* 40     Request Post/Free FIFO     */
	u32	ReplyFifo;	/* 44     Reply   Post/Free FIFO     */
	u32	Reserved3[2];	/* 48-4F  reserved for future use    */
	u32	HostIndex;	/* 50     Host Index register        */
	u32	Reserved4[15];	/* 54-8F                             */
	u32	Fubar;		/* 90     For Fubar usage            */
	u32	Reserved5[27];	/* 94-FF                             */
} SYSIF_REGS;

/*
 * NOTE: Use MPI_{DOORBELL,WRITESEQ,DIAG}_xxx defs in lsi/mpi.h
 * in conjunction with SYSIF_REGS accesses!
 */


/*
 *	Dynamic Multi-Pathing specific stuff...
 */
#define DMP_MAX_PATHS	8