1 /*
2  *  linux/drivers/message/fusion/mptbase.h
3  *      High performance SCSI + LAN / Fibre Channel device drivers.
4  *      For use with PCI chip/adapter(s):
5  *          LSIFC9xx/LSI409xx Fibre Channel
6  *      running LSI Fusion MPT (Message Passing Technology) firmware.
7  *
8  *  Copyright (c) 1999-2008 LSI Corporation
9  *  (mailto:DL-MPTFusionLinux@lsi.com)
10  *
11  */
12 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
13 /*
14     This program is free software; you can redistribute it and/or modify
15     it under the terms of the GNU General Public License as published by
16     the Free Software Foundation; version 2 of the License.
17 
18     This program is distributed in the hope that it will be useful,
19     but WITHOUT ANY WARRANTY; without even the implied warranty of
20     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21     GNU General Public License for more details.
22 
23     NO WARRANTY
24     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
25     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
26     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
27     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
28     solely responsible for determining the appropriateness of using and
29     distributing the Program and assumes all risks associated with its
30     exercise of rights under this Agreement, including but not limited to
31     the risks and costs of program errors, damage to or loss of data,
32     programs or equipment, and unavailability or interruption of operations.
33 
34     DISCLAIMER OF LIABILITY
35     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
36     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
38     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
39     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
40     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
41     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
42 
43     You should have received a copy of the GNU General Public License
44     along with this program; if not, write to the Free Software
45     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
46 */
47 
48 #ifndef MPTBASE_H_INCLUDED
49 #define MPTBASE_H_INCLUDED
50 /*{-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
51 
52 #include <linux/kernel.h>
53 #include <linux/pci.h>
54 #include <linux/mutex.h>
55 
56 #include "lsi/mpi_type.h"
57 #include "lsi/mpi.h"		/* Fusion MPI(nterface) basic defs */
58 #include "lsi/mpi_ioc.h"	/* Fusion MPT IOC(ontroller) defs */
59 #include "lsi/mpi_cnfg.h"	/* IOC configuration support */
60 #include "lsi/mpi_init.h"	/* SCSI Host (initiator) protocol support */
61 #include "lsi/mpi_lan.h"	/* LAN over FC protocol support */
62 #include "lsi/mpi_raid.h"	/* Integrated Mirroring support */
63 
64 #include "lsi/mpi_fc.h"		/* Fibre Channel (lowlevel) support */
65 #include "lsi/mpi_targ.h"	/* SCSI/FCP Target protcol support */
66 #include "lsi/mpi_tool.h"	/* Tools support */
67 #include "lsi/mpi_sas.h"	/* SAS support */
68 
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 
71 #ifndef MODULEAUTHOR
72 #define MODULEAUTHOR	"LSI Corporation"
73 #endif
74 
75 #ifndef COPYRIGHT
76 #define COPYRIGHT	"Copyright (c) 1999-2008 " MODULEAUTHOR
77 #endif
78 
79 #define MPT_LINUX_VERSION_COMMON	"3.04.20"
80 #define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.04.20"
81 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
82 
83 #define show_mptmod_ver(s,ver)  \
84 	printk(KERN_INFO "%s %s\n", s, ver);
85 
86 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
87 /*
88  *  Fusion MPT(linux) driver configurable stuff...
89  */
90 #define MPT_MAX_ADAPTERS		18
91 #define MPT_MAX_PROTOCOL_DRIVERS	16
92 #define MPT_MAX_CALLBACKNAME_LEN	49
93 #define MPT_MAX_BUS			1	/* Do not change */
94 #define MPT_MAX_FC_DEVICES		255
95 #define MPT_MAX_SCSI_DEVICES		16
96 #define MPT_LAST_LUN			255
97 #define MPT_SENSE_BUFFER_ALLOC		64
98 	/* allow for 256 max sense alloc, but only 255 max request */
99 #if MPT_SENSE_BUFFER_ALLOC >= 256
100 #	undef MPT_SENSE_BUFFER_ALLOC
101 #	define MPT_SENSE_BUFFER_ALLOC	256
102 #	define MPT_SENSE_BUFFER_SIZE	255
103 #else
104 #	define MPT_SENSE_BUFFER_SIZE	MPT_SENSE_BUFFER_ALLOC
105 #endif
106 
107 #define MPT_NAME_LENGTH			32
108 #define MPT_KOBJ_NAME_LEN		20
109 
110 #define MPT_PROCFS_MPTBASEDIR		"mpt"
111 						/* chg it to "driver/fusion" ? */
112 #define MPT_PROCFS_SUMMARY_ALL_NODE		MPT_PROCFS_MPTBASEDIR "/summary"
113 #define MPT_PROCFS_SUMMARY_ALL_PATHNAME		"/proc/" MPT_PROCFS_SUMMARY_ALL_NODE
114 #define MPT_FW_REV_MAGIC_ID_STRING		"FwRev="
115 
116 #define  MPT_MAX_REQ_DEPTH		1023
117 #define  MPT_DEFAULT_REQ_DEPTH		256
118 #define  MPT_MIN_REQ_DEPTH		128
119 
120 #define  MPT_MAX_REPLY_DEPTH		MPT_MAX_REQ_DEPTH
121 #define  MPT_DEFAULT_REPLY_DEPTH	128
122 #define  MPT_MIN_REPLY_DEPTH		8
123 #define  MPT_MAX_REPLIES_PER_ISR	32
124 
125 #define  MPT_MAX_FRAME_SIZE		128
126 #define  MPT_DEFAULT_FRAME_SIZE		128
127 
128 #define  MPT_REPLY_FRAME_SIZE		0x50  /* Must be a multiple of 8 */
129 
130 #define  MPT_SG_REQ_128_SCALE		1
131 #define  MPT_SG_REQ_96_SCALE		2
132 #define  MPT_SG_REQ_64_SCALE		4
133 
134 #define	 CAN_SLEEP			1
135 #define  NO_SLEEP			0
136 
137 #define MPT_COALESCING_TIMEOUT		0x10
138 
139 
140 /*
141  * SCSI transfer rate defines.
142  */
143 #define MPT_ULTRA320			0x08
144 #define MPT_ULTRA160			0x09
145 #define MPT_ULTRA2			0x0A
146 #define MPT_ULTRA			0x0C
147 #define MPT_FAST			0x19
148 #define MPT_SCSI			0x32
149 #define MPT_ASYNC			0xFF
150 
151 #define MPT_NARROW			0
152 #define MPT_WIDE			1
153 
154 #define C0_1030				0x08
155 #define XL_929				0x01
156 
157 
158 /*
159  *	Try to keep these at 2^N-1
160  */
161 #define MPT_FC_CAN_QUEUE	1024
162 #define MPT_SCSI_CAN_QUEUE	127
163 #define MPT_SAS_CAN_QUEUE	127
164 
165 /*
166  * Set the MAX_SGE value based on user input.
167  */
168 #ifdef CONFIG_FUSION_MAX_SGE
169 #if CONFIG_FUSION_MAX_SGE  < 16
170 #define MPT_SCSI_SG_DEPTH	16
171 #elif CONFIG_FUSION_MAX_SGE  > 128
172 #define MPT_SCSI_SG_DEPTH	128
173 #else
174 #define MPT_SCSI_SG_DEPTH	CONFIG_FUSION_MAX_SGE
175 #endif
176 #else
177 #define MPT_SCSI_SG_DEPTH	40
178 #endif
179 
180 #ifdef CONFIG_FUSION_MAX_FC_SGE
181 #if CONFIG_FUSION_MAX_FC_SGE  < 16
182 #define MPT_SCSI_FC_SG_DEPTH	16
183 #elif CONFIG_FUSION_MAX_FC_SGE  > 256
184 #define MPT_SCSI_FC_SG_DEPTH	256
185 #else
186 #define MPT_SCSI_FC_SG_DEPTH	CONFIG_FUSION_MAX_FC_SGE
187 #endif
188 #else
189 #define MPT_SCSI_FC_SG_DEPTH	40
190 #endif
191 
192 /* debug print string length used for events and iocstatus */
193 # define EVENT_DESCR_STR_SZ             100
194 
195 #define MPT_POLLING_INTERVAL		1000	/* in milliseconds */
196 
197 #ifdef __KERNEL__	/* { */
198 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
199 
200 #include <linux/proc_fs.h>
201 
202 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
203 /*
204  * Attempt semi-consistent error & warning msgs across
205  * MPT drivers.  NOTE: Users of these macro defs must
206  * themselves define their own MYNAM.
207  */
208 #define MYIOC_s_FMT			MYNAM ": %s: "
209 #define MYIOC_s_DEBUG_FMT		KERN_DEBUG MYNAM ": %s: "
210 #define MYIOC_s_INFO_FMT		KERN_INFO MYNAM ": %s: "
211 #define MYIOC_s_NOTE_FMT		KERN_NOTICE MYNAM ": %s: "
212 #define MYIOC_s_WARN_FMT		KERN_WARNING MYNAM ": %s: WARNING - "
213 #define MYIOC_s_ERR_FMT			KERN_ERR MYNAM ": %s: ERROR - "
214 
215 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
216 /*
217  *  ATTO UL4D associated structures and defines
218  */
219 #define ATTOFLAG_DISC     0x0001
220 #define ATTOFLAG_TAGGED   0x0002
221 #define ATTOFLAG_WIDE_ENB 0x0008
222 #define ATTOFLAG_ID_ENB   0x0010
223 #define ATTOFLAG_LUN_ENB  0x0060
224 
225 typedef struct _ATTO_DEVICE_INFO
226 {
227 	u8	Offset;					/* 00h */
228 	u8	Period;					/* 01h */
229 	u16	ATTOFlags;				/* 02h */
230 } ATTO_DEVICE_INFO, MPI_POINTER PTR_ATTO_DEVICE_INFO,
231   ATTODeviceInfo_t, MPI_POINTER pATTODeviceInfo_t;
232 
233 typedef struct _ATTO_CONFIG_PAGE_SCSI_PORT_2
234 {
235 	CONFIG_PAGE_HEADER	Header;			/* 00h */
236 	u16			PortFlags;		/* 04h */
237 	u16			Unused1;		/* 06h */
238 	u32			Unused2;		/* 08h */
239 	ATTO_DEVICE_INFO	DeviceSettings[16];	/* 0Ch */
240 } fATTO_CONFIG_PAGE_SCSI_PORT_2, MPI_POINTER PTR_ATTO_CONFIG_PAGE_SCSI_PORT_2,
241   ATTO_SCSIPortPage2_t, MPI_POINTER pATTO_SCSIPortPage2_t;
242 
243 
244 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
245 /*
246  *  MPT protocol driver defs...
247  */
248 typedef enum {
249 	MPTBASE_DRIVER,		/* MPT base class */
250 	MPTCTL_DRIVER,		/* MPT ioctl class */
251 	MPTSPI_DRIVER,		/* MPT SPI host class */
252 	MPTFC_DRIVER,		/* MPT FC host class */
253 	MPTSAS_DRIVER,		/* MPT SAS host class */
254 	MPTLAN_DRIVER,		/* MPT LAN class */
255 	MPTSTM_DRIVER,		/* MPT SCSI target mode class */
256 	MPTUNKNOWN_DRIVER
257 } MPT_DRIVER_CLASS;
258 
259 struct mpt_pci_driver{
260 	int  (*probe) (struct pci_dev *dev, const struct pci_device_id *id);
261 	void (*remove) (struct pci_dev *dev);
262 };
263 
264 /*
265  *  MPT adapter / port / bus / device info structures...
266  */
267 
268 typedef union _MPT_FRAME_TRACKER {
269 	struct {
270 		struct list_head	list;
271 		u32			 arg1;
272 		u32			 pad;
273 		void			*argp1;
274 	} linkage;
275 	/*
276 	 * NOTE: When request frames are free, on the linkage structure
277 	 * contets are valid.  All other values are invalid.
278 	 * In particular, do NOT reply on offset [2]
279 	 * (in words) being the * message context.
280 	 * The message context must be reset (computed via base address
281 	 * + an offset) prior to issuing any command.
282 	 *
283 	 * NOTE2: On non-32-bit systems, where pointers are LARGE,
284 	 * using the linkage pointers destroys our sacred MsgContext
285 	 * field contents.  But we don't care anymore because these
286 	 * are now reset in mpt_put_msg_frame() just prior to sending
287 	 * a request off to the IOC.
288 	 */
289 	struct {
290 		u32 __hdr[2];
291 		/*
292 		 * The following _MUST_ match the location of the
293 		 * MsgContext field in the MPT message headers.
294 		 */
295 		union {
296 			u32		 MsgContext;
297 			struct {
298 				u16	 req_idx;	/* Request index */
299 				u8	 cb_idx;	/* callback function index */
300 				u8	 rsvd;
301 			} fld;
302 		} msgctxu;
303 	} hwhdr;
304 	/*
305 	 * Remark: 32 bit identifier:
306 	 *  31-24: reserved
307 	 *  23-16: call back index
308 	 *  15-0 : request index
309 	 */
310 } MPT_FRAME_TRACKER;
311 
312 /*
313  *  We might want to view/access a frame as:
314  *    1) generic request header
315  *    2) SCSIIORequest
316  *    3) SCSIIOReply
317  *    4) MPIDefaultReply
318  *    5) frame tracker
319  */
320 typedef struct _MPT_FRAME_HDR {
321 	union {
322 		MPIHeader_t		hdr;
323 		SCSIIORequest_t		scsireq;
324 		SCSIIOReply_t		sreply;
325 		ConfigReply_t		configreply;
326 		MPIDefaultReply_t	reply;
327 		MPT_FRAME_TRACKER	frame;
328 	} u;
329 } MPT_FRAME_HDR;
330 
331 #define MPT_REQ_MSGFLAGS_DROPME		0x80
332 
333 typedef struct _MPT_SGL_HDR {
334 	SGESimple32_t	 sge[1];
335 } MPT_SGL_HDR;
336 
337 typedef struct _MPT_SGL64_HDR {
338 	SGESimple64_t	 sge[1];
339 } MPT_SGL64_HDR;
340 
341 /*
342  *  System interface register set
343  */
344 
345 typedef struct _SYSIF_REGS
346 {
347 	u32	Doorbell;	/* 00     System<->IOC Doorbell reg  */
348 	u32	WriteSequence;	/* 04     Write Sequence register    */
349 	u32	Diagnostic;	/* 08     Diagnostic register        */
350 	u32	TestBase;	/* 0C     Test Base Address          */
351 	u32	DiagRwData;	/* 10     Read Write Data (fw download)   */
352 	u32	DiagRwAddress;	/* 14     Read Write Address (fw download)*/
353 	u32	Reserved1[6];	/* 18-2F  reserved for future use    */
354 	u32	IntStatus;	/* 30     Interrupt Status           */
355 	u32	IntMask;	/* 34     Interrupt Mask             */
356 	u32	Reserved2[2];	/* 38-3F  reserved for future use    */
357 	u32	RequestFifo;	/* 40     Request Post/Free FIFO     */
358 	u32	ReplyFifo;	/* 44     Reply   Post/Free FIFO     */
359 	u32	RequestHiPriFifo; /* 48   Hi Priority Request FIFO   */
360 	u32	Reserved3;	/* 4C-4F  reserved for future use    */
361 	u32	HostIndex;	/* 50     Host Index register        */
362 	u32	Reserved4[15];	/* 54-8F                             */
363 	u32	Fubar;		/* 90     For Fubar usage            */
364 	u32	Reserved5[1050];/* 94-10F8                           */
365 	u32	Reset_1078;	/* 10FC   Reset 1078                 */
366 } SYSIF_REGS;
367 
368 /*
369  * NOTE: Use MPI_{DOORBELL,WRITESEQ,DIAG}_xxx defs in lsi/mpi.h
370  * in conjunction with SYSIF_REGS accesses!
371  */
372 
373 
374 /*
375  *	Dynamic Multi-Pathing specific stuff...
376  */
377 
378 /* VirtTarget negoFlags field */
379 #define MPT_TARGET_NO_NEGO_WIDE		0x01
380 #define MPT_TARGET_NO_NEGO_SYNC		0x02
381 #define MPT_TARGET_NO_NEGO_QAS		0x04
382 #define MPT_TAPE_NEGO_IDP     		0x08
383 
384 /*
385  *	VirtDevice - FC LUN device or SCSI target device
386  */
387 typedef struct _VirtTarget {
388 	struct scsi_target	*starget;
389 	u8			 tflags;
390 	u8			 ioc_id;
391 	u8			 id;
392 	u8			 channel;
393 	u8			 minSyncFactor;	/* 0xFF is async */
394 	u8			 maxOffset;	/* 0 if async */
395 	u8			 maxWidth;	/* 0 if narrow, 1 if wide */
396 	u8			 negoFlags;	/* bit field, see above */
397 	u8			 raidVolume;	/* set, if RAID Volume */
398 	u8			 type;		/* byte 0 of Inquiry data */
399 	u8			 deleted;	/* target in process of being removed */
400 	u8			 inDMD;		/* currently in the device
401 						   removal delay timer */
402 	u32			 num_luns;
403 } VirtTarget;
404 
405 typedef struct _VirtDevice {
406 	VirtTarget		*vtarget;
407 	u8			 configured_lun;
408 	u64			 lun;
409 } VirtDevice;
410 
411 /*
412  *  Fibre Channel (SCSI) target device and associated defines...
413  */
414 #define MPT_TARGET_DEFAULT_DV_STATUS	0x00
415 #define MPT_TARGET_FLAGS_VALID_NEGO	0x01
416 #define MPT_TARGET_FLAGS_VALID_INQUIRY	0x02
417 #define MPT_TARGET_FLAGS_Q_YES		0x08
418 #define MPT_TARGET_FLAGS_VALID_56	0x10
419 #define MPT_TARGET_FLAGS_SAF_TE_ISSUED	0x20
420 #define MPT_TARGET_FLAGS_RAID_COMPONENT	0x40
421 #define MPT_TARGET_FLAGS_LED_ON		0x80
422 
423 /*
424  *	IOCTL structure and associated defines
425  */
426 
427 #define MPTCTL_RESET_OK			0x01	/* Issue Bus Reset */
428 
429 #define MPT_MGMT_STATUS_RF_VALID	0x01	/* The Reply Frame is VALID */
430 #define MPT_MGMT_STATUS_COMMAND_GOOD	0x02	/* Command Status GOOD */
431 #define MPT_MGMT_STATUS_PENDING		0x04	/* command is pending */
432 #define MPT_MGMT_STATUS_DID_IOCRESET	0x08	/* IOC Reset occurred
433 						   on the current*/
434 #define MPT_MGMT_STATUS_SENSE_VALID	0x10	/* valid sense info */
435 #define MPT_MGMT_STATUS_TIMER_ACTIVE	0x20	/* obsolete */
436 #define MPT_MGMT_STATUS_FREE_MF		0x40	/* free the mf from
437 						   complete routine */
438 
439 #define INITIALIZE_MGMT_STATUS(status) \
440 	status = MPT_MGMT_STATUS_PENDING;
441 #define CLEAR_MGMT_STATUS(status) \
442 	status = 0;
443 #define CLEAR_MGMT_PENDING_STATUS(status) \
444 	status &= ~MPT_MGMT_STATUS_PENDING;
445 #define SET_MGMT_MSG_CONTEXT(msg_context, value) \
446 	msg_context = value;
447 
448 typedef struct _MPT_MGMT {
449 	struct mutex		 mutex;
450 	struct completion	 done;
451 	u8			 reply[MPT_DEFAULT_FRAME_SIZE]; /* reply frame data */
452 	u8			 sense[MPT_SENSE_BUFFER_ALLOC];
453 	u8			 status;	/* current command status */
454 	int			 completion_code;
455 	u32			 msg_context;
456 } MPT_MGMT;
457 
458 /*
459  *  Event Structure and define
460  */
461 #define MPTCTL_EVENT_LOG_SIZE		(0x000000032)
462 typedef struct _mpt_ioctl_events {
463 	u32	event;		/* Specified by define above */
464 	u32	eventContext;	/* Index or counter */
465 	u32	data[2];	/* First 8 bytes of Event Data */
466 } MPT_IOCTL_EVENTS;
467 
468 /*
469  * CONFIGPARM status  defines
470  */
471 #define MPT_CONFIG_GOOD		MPI_IOCSTATUS_SUCCESS
472 #define MPT_CONFIG_ERROR	0x002F
473 
474 /*
475  *	Substructure to store SCSI specific configuration page data
476  */
477 						/* dvStatus defines: */
478 #define MPT_SCSICFG_USE_NVRAM		0x01	/* WriteSDP1 using NVRAM */
479 #define MPT_SCSICFG_ALL_IDS		0x02	/* WriteSDP1 to all IDS */
480 /* #define MPT_SCSICFG_BLK_NEGO		0x10	   WriteSDP1 with WDTR and SDTR disabled */
481 
482 typedef	struct _SpiCfgData {
483 	u32		 PortFlags;
484 	int		*nvram;			/* table of device NVRAM values */
485 	IOCPage4_t	*pIocPg4;		/* SEP devices addressing */
486 	dma_addr_t	 IocPg4_dma;		/* Phys Addr of IOCPage4 data */
487 	int		 IocPg4Sz;		/* IOCPage4 size */
488 	u8		 minSyncFactor;		/* 0xFF if async */
489 	u8		 maxSyncOffset;		/* 0 if async */
490 	u8		 maxBusWidth;		/* 0 if narrow, 1 if wide */
491 	u8		 busType;		/* SE, LVD, HD */
492 	u8		 sdp1version;		/* SDP1 version */
493 	u8		 sdp1length;		/* SDP1 length  */
494 	u8		 sdp0version;		/* SDP0 version */
495 	u8		 sdp0length;		/* SDP0 length  */
496 	u8		 dvScheduled;		/* 1 if scheduled */
497 	u8		 noQas;			/* Disable QAS for this adapter */
498 	u8		 Saf_Te;		/* 1 to force all Processors as
499 						 * SAF-TE if Inquiry data length
500 						 * is too short to check for SAF-TE
501 						 */
502 	u8		 bus_reset;		/* 1 to allow bus reset */
503 	u8		 rsvd[1];
504 }SpiCfgData;
505 
506 typedef	struct _SasCfgData {
507 	u8		 ptClear;		/* 1 to automatically clear the
508 						 * persistent table.
509 						 * 0 to disable
510 						 * automatic clearing.
511 						 */
512 }SasCfgData;
513 
514 /*
515  * Inactive volume link list of raid component data
516  * @inactive_list
517  */
518 struct inactive_raid_component_info {
519 	struct 	 list_head list;
520 	u8		 volumeID;		/* volume target id */
521 	u8		 volumeBus;		/* volume channel */
522 	IOC_3_PHYS_DISK	 d;			/* phys disk info */
523 };
524 
525 typedef	struct _RaidCfgData {
526 	IOCPage2_t	*pIocPg2;		/* table of Raid Volumes */
527 	IOCPage3_t	*pIocPg3;		/* table of physical disks */
528 	struct mutex	inactive_list_mutex;
529 	struct list_head	inactive_list; /* link list for physical
530 						disk that belong in
531 						inactive volumes */
532 }RaidCfgData;
533 
534 typedef struct _FcCfgData {
535 	/* will ultimately hold fc_port_page0 also */
536 	struct {
537 		FCPortPage1_t	*data;
538 		dma_addr_t	 dma;
539 		int		 pg_sz;
540 	}			 fc_port_page1[2];
541 } FcCfgData;
542 
543 #define MPT_RPORT_INFO_FLAGS_REGISTERED	0x01	/* rport registered */
544 #define MPT_RPORT_INFO_FLAGS_MISSING	0x02	/* missing from DevPage0 scan */
545 
546 /*
547  * data allocated for each fc rport device
548  */
549 struct mptfc_rport_info
550 {
551 	struct list_head list;
552 	struct fc_rport *rport;
553 	struct scsi_target *starget;
554 	FCDevicePage0_t pg0;
555 	u8		flags;
556 };
557 
558 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
559 
560 /*
561  * MPT_SCSI_HOST defines - Used by the IOCTL and the SCSI drivers
562  * Private to the driver.
563  */
564 
565 #define MPT_HOST_BUS_UNKNOWN		(0xFF)
566 #define MPT_HOST_TOO_MANY_TM		(0x05)
567 #define MPT_HOST_NVRAM_INVALID		(0xFFFFFFFF)
568 #define MPT_HOST_NO_CHAIN		(0xFFFFFFFF)
569 #define MPT_NVRAM_MASK_TIMEOUT		(0x000000FF)
570 #define MPT_NVRAM_SYNC_MASK		(0x0000FF00)
571 #define MPT_NVRAM_SYNC_SHIFT		(8)
572 #define MPT_NVRAM_DISCONNECT_ENABLE	(0x00010000)
573 #define MPT_NVRAM_ID_SCAN_ENABLE	(0x00020000)
574 #define MPT_NVRAM_LUN_SCAN_ENABLE	(0x00040000)
575 #define MPT_NVRAM_TAG_QUEUE_ENABLE	(0x00080000)
576 #define MPT_NVRAM_WIDE_DISABLE		(0x00100000)
577 #define MPT_NVRAM_BOOT_CHOICE		(0x00200000)
578 
579 typedef enum {
580 	FC,
581 	SPI,
582 	SAS
583 } BUS_TYPE;
584 
585 typedef struct _MPT_SCSI_HOST {
586 	struct _MPT_ADAPTER		 *ioc;
587 	ushort			  sel_timeout[MPT_MAX_FC_DEVICES];
588 	char			  *info_kbuf;
589 	long			  last_queue_full;
590 	u16			  spi_pending;
591 	struct list_head	  target_reset_list;
592 } MPT_SCSI_HOST;
593 
594 typedef void (*MPT_ADD_SGE)(void *pAddr, u32 flagslength, dma_addr_t dma_addr);
595 typedef void (*MPT_ADD_CHAIN)(void *pAddr, u8 next, u16 length,
596 		dma_addr_t dma_addr);
597 typedef void (*MPT_SCHEDULE_TARGET_RESET)(void *ioc);
598 typedef void (*MPT_FLUSH_RUNNING_CMDS)(MPT_SCSI_HOST *hd);
599 
600 /*
601  *  Adapter Structure - pci_dev specific. Maximum: MPT_MAX_ADAPTERS
602  */
603 typedef struct _MPT_ADAPTER
604 {
605 	int			 id;		/* Unique adapter id N {0,1,2,...} */
606 	int			 pci_irq;	/* This irq           */
607 	char			 name[MPT_NAME_LENGTH];	/* "iocN"             */
608 	const char		 *prod_name;	/* "LSIFC9x9"         */
609 #ifdef CONFIG_FUSION_LOGGING
610 	/* used in mpt_display_event_info */
611 	char			 evStr[EVENT_DESCR_STR_SZ];
612 #endif
613 	char			 board_name[16];
614 	char			 board_assembly[16];
615 	char			 board_tracer[16];
616 	u16			 nvdata_version_persistent;
617 	u16			 nvdata_version_default;
618 	int			 debug_level;
619 	u8			 io_missing_delay;
620 	u16			 device_missing_delay;
621 	SYSIF_REGS __iomem	*chip;		/* == c8817000 (mmap) */
622 	SYSIF_REGS __iomem	*pio_chip;	/* Programmed IO (downloadboot) */
623 	u8			 bus_type;
624 	u32			 mem_phys;	/* == f4020000 (mmap) */
625 	u32			 pio_mem_phys;	/* Programmed IO (downloadboot) */
626 	int			 mem_size;	/* mmap memory size */
627 	int			 number_of_buses;
628 	int			 devices_per_bus;
629 	int			 alloc_total;
630 	u32			 last_state;
631 	int			 active;
632 	u8			*alloc;		/* frames alloc ptr */
633 	dma_addr_t		 alloc_dma;
634 	u32			 alloc_sz;
635 	MPT_FRAME_HDR		*reply_frames;	/* Reply msg frames - rounded up! */
636 	u32			 reply_frames_low_dma;
637 	int			 reply_depth;	/* Num Allocated reply frames */
638 	int			 reply_sz;	/* Reply frame size */
639 	int			 num_chain;	/* Number of chain buffers */
640 	MPT_ADD_SGE              add_sge;       /* Pointer to add_sge
641 						   function */
642 	MPT_ADD_CHAIN		 add_chain;	/* Pointer to add_chain
643 						   function */
644 		/* Pool of buffers for chaining. ReqToChain
645 		 * and ChainToChain track index of chain buffers.
646 		 * ChainBuffer (DMA) virt/phys addresses.
647 		 * FreeChainQ (lock) locking mechanisms.
648 		 */
649 	int			*ReqToChain;
650 	int			*RequestNB;
651 	int			*ChainToChain;
652 	u8			*ChainBuffer;
653 	dma_addr_t		 ChainBufferDMA;
654 	struct list_head	 FreeChainQ;
655 	spinlock_t		 FreeChainQlock;
656 		/* We (host driver) get to manage our own RequestQueue! */
657 	dma_addr_t		 req_frames_dma;
658 	MPT_FRAME_HDR		*req_frames;	/* Request msg frames - rounded up! */
659 	u32			 req_frames_low_dma;
660 	int			 req_depth;	/* Number of request frames */
661 	int			 req_sz;	/* Request frame size (bytes) */
662 	spinlock_t		 FreeQlock;
663 	struct list_head	 FreeQ;
664 		/* Pool of SCSI sense buffers for commands coming from
665 		 * the SCSI mid-layer.  We have one 256 byte sense buffer
666 		 * for each REQ entry.
667 		 */
668 	u8			*sense_buf_pool;
669 	dma_addr_t		 sense_buf_pool_dma;
670 	u32			 sense_buf_low_dma;
671 	u8			*HostPageBuffer; /* SAS - host page buffer support */
672 	u32			HostPageBuffer_sz;
673 	dma_addr_t		HostPageBuffer_dma;
674 	struct pci_dev		*pcidev;	/* struct pci_dev pointer */
675 	int			bars;		/* bitmask of BAR's that must be configured */
676 	int			msi_enable;
677 	u8			__iomem *memmap;	/* mmap address */
678 	struct Scsi_Host	*sh;		/* Scsi Host pointer */
679 	SpiCfgData		spi_data;	/* Scsi config. data */
680 	RaidCfgData		raid_data;	/* Raid config. data */
681 	SasCfgData		sas_data;	/* Sas config. data */
682 	FcCfgData		fc_data;	/* Fc config. data */
683 	struct proc_dir_entry	*ioc_dentry;
684 	struct _MPT_ADAPTER	*alt_ioc;	/* ptr to 929 bound adapter port */
685 	u32			 biosVersion;	/* BIOS version from IO Unit Page 2 */
686 	int			 eventTypes;	/* Event logging parameters */
687 	int			 eventContext;	/* Next event context */
688 	int			 eventLogSize;	/* Max number of cached events */
689 	struct _mpt_ioctl_events *events;	/* pointer to event log */
690 	u8			*cached_fw;	/* Pointer to FW */
691 	dma_addr_t	 	cached_fw_dma;
692 	int			 hs_reply_idx;
693 #ifndef MFCNT
694 	u32			 pad0;
695 #else
696 	u32			 mfcnt;
697 #endif
698 	u32			 NB_for_64_byte_frame;
699 	u32			 hs_req[MPT_MAX_FRAME_SIZE/sizeof(u32)];
700 	u16			 hs_reply[MPT_MAX_FRAME_SIZE/sizeof(u16)];
701 	IOCFactsReply_t		 facts;
702 	PortFactsReply_t	 pfacts[2];
703 	FCPortPage0_t		 fc_port_page0[2];
704 	LANPage0_t		 lan_cnfg_page0;
705 	LANPage1_t		 lan_cnfg_page1;
706 
707 	u8			 ir_firmware; /* =1 if IR firmware detected */
708 	/*
709 	 * Description: errata_flag_1064
710 	 * If a PCIX read occurs within 1 or 2 cycles after the chip receives
711 	 * a split completion for a read data, an internal address pointer incorrectly
712 	 * increments by 32 bytes
713 	 */
714 	int			 errata_flag_1064;
715 	int			 aen_event_read_flag; /* flag to indicate event log was read*/
716 	u8			 FirstWhoInit;
717 	u8			 upload_fw;	/* If set, do a fw upload */
718 	u8			 NBShiftFactor;  /* NB Shift Factor based on Block Size (Facts)  */
719 	u8			 pad1[4];
720 	u8			 DoneCtx;
721 	u8			 TaskCtx;
722 	u8			 InternalCtx;
723 	struct list_head	 list;
724 	struct net_device	*netdev;
725 	struct list_head	 sas_topology;
726 	struct mutex		 sas_topology_mutex;
727 
728 	struct workqueue_struct	*fw_event_q;
729 	struct list_head	 fw_event_list;
730 	spinlock_t		 fw_event_lock;
731 	u8			 fw_events_off; /* if '1', then ignore events */
732 	char 			 fw_event_q_name[MPT_KOBJ_NAME_LEN];
733 
734 	struct mutex		 sas_discovery_mutex;
735 	u8			 sas_discovery_runtime;
736 	u8			 sas_discovery_ignore_events;
737 
738 	/* port_info object for the host */
739 	struct mptsas_portinfo	*hba_port_info;
740 	u64			 hba_port_sas_addr;
741 	u16			 hba_port_num_phy;
742 	struct list_head	 sas_device_info_list;
743 	struct mutex		 sas_device_info_mutex;
744 	u8			 old_sas_discovery_protocal;
745 	u8			 sas_discovery_quiesce_io;
746 	int			 sas_index; /* index refrencing */
747 	MPT_MGMT		 sas_mgmt;
748 	MPT_MGMT		 mptbase_cmds; /* for sending config pages */
749 	MPT_MGMT		 internal_cmds;
750 	MPT_MGMT		 taskmgmt_cmds;
751 	MPT_MGMT		 ioctl_cmds;
752 	spinlock_t		 taskmgmt_lock; /* diagnostic reset lock */
753 	int			 taskmgmt_in_progress;
754 	u8			 taskmgmt_quiesce_io;
755 	u8			 ioc_reset_in_progress;
756 	u8			 reset_status;
757 	u8			 wait_on_reset_completion;
758 	MPT_SCHEDULE_TARGET_RESET schedule_target_reset;
759 	MPT_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds;
760 	struct work_struct	 sas_persist_task;
761 
762 	struct work_struct	 fc_setup_reset_work;
763 	struct list_head	 fc_rports;
764 	struct work_struct	 fc_lsc_work;
765 	u8			 fc_link_speed[2];
766 	spinlock_t		 fc_rescan_work_lock;
767 	struct work_struct	 fc_rescan_work;
768 	char			 fc_rescan_work_q_name[MPT_KOBJ_NAME_LEN];
769 	struct workqueue_struct *fc_rescan_work_q;
770 
771 	/* driver forced bus resets count */
772 	unsigned long		  hard_resets;
773 	/* fw/external bus resets count */
774 	unsigned long		  soft_resets;
775 	/* cmd timeouts */
776 	unsigned long		  timeouts;
777 
778 	struct scsi_cmnd	**ScsiLookup;
779 	spinlock_t		  scsi_lookup_lock;
780 	u64			dma_mask;
781 	u32			  broadcast_aen_busy;
782 	char			 reset_work_q_name[MPT_KOBJ_NAME_LEN];
783 	struct workqueue_struct *reset_work_q;
784 	struct delayed_work	 fault_reset_work;
785 
786 	u8			sg_addr_size;
787 	u8			in_rescan;
788 	u8			SGE_size;
789 
790 } MPT_ADAPTER;
791 
792 /*
793  *  New return value convention:
794  *    1 = Ok to free associated request frame
795  *    0 = not Ok ...
796  */
797 typedef int (*MPT_CALLBACK)(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
798 typedef int (*MPT_EVHANDLER)(MPT_ADAPTER *ioc, EventNotificationReply_t *evReply);
799 typedef int (*MPT_RESETHANDLER)(MPT_ADAPTER *ioc, int reset_phase);
800 /* reset_phase defs */
801 #define MPT_IOC_PRE_RESET		0
802 #define MPT_IOC_POST_RESET		1
803 #define MPT_IOC_SETUP_RESET		2
804 
805 /*
806  * Invent MPT host event (super-set of MPI Events)
807  * Fitted to 1030's 64-byte [max] request frame size
808  */
809 typedef struct _MPT_HOST_EVENT {
810 	EventNotificationReply_t	 MpiEvent;	/* 8 32-bit words! */
811 	u32				 pad[6];
812 	void				*next;
813 } MPT_HOST_EVENT;
814 
815 #define MPT_HOSTEVENT_IOC_BRINGUP	0x91
816 #define MPT_HOSTEVENT_IOC_RECOVER	0x92
817 
818 /* Define the generic types based on the size
819  * of the dma_addr_t type.
820  */
821 typedef struct _mpt_sge {
822 	u32		FlagsLength;
823 	dma_addr_t	Address;
824 } MptSge_t;
825 
826 
827 #define mpt_msg_flags(ioc) \
828 	(ioc->sg_addr_size == sizeof(u64)) ?		\
829 	MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_64 : 		\
830 	MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_32
831 
832 #define MPT_SGE_FLAGS_64_BIT_ADDRESSING \
833 	(MPI_SGE_FLAGS_64_BIT_ADDRESSING << MPI_SGE_FLAGS_SHIFT)
834 
835 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
836 /*
837  *  Funky (private) macros...
838  */
839 #include "mptdebug.h"
840 
841 #define MPT_INDEX_2_MFPTR(ioc,idx) \
842 	(MPT_FRAME_HDR*)( (u8*)(ioc)->req_frames + (ioc)->req_sz * (idx) )
843 
844 #define MFPTR_2_MPT_INDEX(ioc,mf) \
845 	(int)( ((u8*)mf - (u8*)(ioc)->req_frames) / (ioc)->req_sz )
846 
847 #define MPT_INDEX_2_RFPTR(ioc,idx) \
848 	(MPT_FRAME_HDR*)( (u8*)(ioc)->reply_frames + (ioc)->req_sz * (idx) )
849 
850 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
851 
852 #define SCSI_STD_SENSE_BYTES    18
853 #define SCSI_STD_INQUIRY_BYTES  36
854 #define SCSI_MAX_INQUIRY_BYTES  96
855 
856 /*
857  * MPT_SCSI_HOST defines - Used by the IOCTL and the SCSI drivers
858  * Private to the driver.
859  */
860 /* LOCAL structure and fields used when processing
861  * internally generated commands. These include:
862  * bus scan, dv and config requests.
863  */
864 typedef struct _MPT_LOCAL_REPLY {
865 	ConfigPageHeader_t header;
866 	int	completion;
867 	u8	sense[SCSI_STD_SENSE_BYTES];
868 	u8	scsiStatus;
869 	u8	skip;
870 	u32	pad;
871 } MPT_LOCAL_REPLY;
872 
873 
874 /* The TM_STATE variable is used to provide strict single threading of TM
875  * requests as well as communicate TM error conditions.
876  */
877 #define TM_STATE_NONE          (0)
878 #define	TM_STATE_IN_PROGRESS   (1)
879 #define	TM_STATE_ERROR	       (2)
880 
881 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
882 /*
883  *	More Dynamic Multi-Pathing stuff...
884  */
885 
886 /* Forward decl, a strange C thing, to prevent gcc compiler warnings */
887 struct scsi_cmnd;
888 
889 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
890 /*
891  * Generic structure passed to the base mpt_config function.
892  */
893 typedef struct _x_config_parms {
894 	union {
895 		ConfigExtendedPageHeader_t	*ehdr;
896 		ConfigPageHeader_t	*hdr;
897 	} cfghdr;
898 	dma_addr_t		 physAddr;
899 	u32			 pageAddr;	/* properly formatted */
900 	u16			 status;
901 	u8			 action;
902 	u8			 dir;
903 	u8			 timeout;	/* seconds */
904 } CONFIGPARMS;
905 
906 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
907 /*
908  *  Public entry points...
909  */
910 extern int	 mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id);
911 extern void	 mpt_detach(struct pci_dev *pdev);
912 #ifdef CONFIG_PM
913 extern int	 mpt_suspend(struct pci_dev *pdev, pm_message_t state);
914 extern int	 mpt_resume(struct pci_dev *pdev);
915 #endif
916 extern u8	 mpt_register(MPT_CALLBACK cbfunc, MPT_DRIVER_CLASS dclass,
917 		char *func_name);
918 extern void	 mpt_deregister(u8 cb_idx);
919 extern int	 mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc);
920 extern void	 mpt_event_deregister(u8 cb_idx);
921 extern int	 mpt_reset_register(u8 cb_idx, MPT_RESETHANDLER reset_func);
922 extern void	 mpt_reset_deregister(u8 cb_idx);
923 extern int	 mpt_device_driver_register(struct mpt_pci_driver * dd_cbfunc, u8 cb_idx);
924 extern void	 mpt_device_driver_deregister(u8 cb_idx);
925 extern MPT_FRAME_HDR	*mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc);
926 extern void	 mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
927 extern void	 mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
928 extern void	 mpt_put_msg_frame_hi_pri(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
929 
930 extern int	 mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER *ioc, int reqBytes, u32 *req, int sleepFlag);
931 extern int	 mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp);
932 extern u32	 mpt_GetIocState(MPT_ADAPTER *ioc, int cooked);
933 extern void	 mpt_print_ioc_summary(MPT_ADAPTER *ioc, char *buf, int *size, int len, int showlan);
934 extern int	 mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
935 extern int	 mpt_Soft_Hard_ResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
936 extern int	 mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *cfg);
937 extern int	 mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size);
938 extern void	 mpt_free_fw_memory(MPT_ADAPTER *ioc);
939 extern int	 mpt_findImVolumes(MPT_ADAPTER *ioc);
940 extern int	 mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
941 extern int	 mpt_raid_phys_disk_pg0(MPT_ADAPTER *ioc, u8 phys_disk_num, pRaidPhysDiskPage0_t phys_disk);
942 extern int	mpt_raid_phys_disk_pg1(MPT_ADAPTER *ioc, u8 phys_disk_num,
943 		pRaidPhysDiskPage1_t phys_disk);
944 extern int	mpt_raid_phys_disk_get_num_paths(MPT_ADAPTER *ioc,
945 		u8 phys_disk_num);
946 extern int	 mpt_set_taskmgmt_in_progress_flag(MPT_ADAPTER *ioc);
947 extern void	 mpt_clear_taskmgmt_in_progress_flag(MPT_ADAPTER *ioc);
948 extern void     mpt_halt_firmware(MPT_ADAPTER *ioc);
949 
950 
951 /*
952  *  Public data decl's...
953  */
954 extern struct list_head	  ioc_list;
955 extern int mpt_fwfault_debug;
956 
957 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
958 #endif		/* } __KERNEL__ */
959 
960 #ifdef CONFIG_64BIT
961 #define CAST_U32_TO_PTR(x)	((void *)(u64)x)
962 #define CAST_PTR_TO_U32(x)	((u32)(u64)x)
963 #else
964 #define CAST_U32_TO_PTR(x)	((void *)x)
965 #define CAST_PTR_TO_U32(x)	((u32)x)
966 #endif
967 
968 #define MPT_PROTOCOL_FLAGS_c_c_c_c(pflags) \
969 	((pflags) & MPI_PORTFACTS_PROTOCOL_INITIATOR)	? 'I' : 'i',	\
970 	((pflags) & MPI_PORTFACTS_PROTOCOL_TARGET)	? 'T' : 't',	\
971 	((pflags) & MPI_PORTFACTS_PROTOCOL_LAN)		? 'L' : 'l',	\
972 	((pflags) & MPI_PORTFACTS_PROTOCOL_LOGBUSADDR)	? 'B' : 'b'
973 
974 /*
975  *  Shifted SGE Defines - Use in SGE with FlagsLength member.
976  *  Otherwise, use MPI_xxx defines (refer to "lsi/mpi.h" header).
977  *  Defaults: 32 bit SGE, SYSTEM_ADDRESS if direction bit is 0, read
978  */
979 #define MPT_TRANSFER_IOC_TO_HOST		(0x00000000)
980 #define MPT_TRANSFER_HOST_TO_IOC		(0x04000000)
981 #define MPT_SGE_FLAGS_LAST_ELEMENT		(0x80000000)
982 #define MPT_SGE_FLAGS_END_OF_BUFFER		(0x40000000)
983 #define MPT_SGE_FLAGS_LOCAL_ADDRESS		(0x08000000)
984 #define MPT_SGE_FLAGS_DIRECTION			(0x04000000)
985 #define MPT_SGE_FLAGS_END_OF_LIST		(0x01000000)
986 
987 #define MPT_SGE_FLAGS_TRANSACTION_ELEMENT	(0x00000000)
988 #define MPT_SGE_FLAGS_SIMPLE_ELEMENT		(0x10000000)
989 #define MPT_SGE_FLAGS_CHAIN_ELEMENT		(0x30000000)
990 #define MPT_SGE_FLAGS_ELEMENT_MASK		(0x30000000)
991 
992 #define MPT_SGE_FLAGS_SSIMPLE_READ \
993 	(MPT_SGE_FLAGS_LAST_ELEMENT |	\
994 	 MPT_SGE_FLAGS_END_OF_BUFFER |	\
995 	 MPT_SGE_FLAGS_END_OF_LIST |	\
996 	 MPT_SGE_FLAGS_SIMPLE_ELEMENT |	\
997 	 MPT_TRANSFER_IOC_TO_HOST)
998 #define MPT_SGE_FLAGS_SSIMPLE_WRITE \
999 	(MPT_SGE_FLAGS_LAST_ELEMENT |	\
1000 	 MPT_SGE_FLAGS_END_OF_BUFFER |	\
1001 	 MPT_SGE_FLAGS_END_OF_LIST |	\
1002 	 MPT_SGE_FLAGS_SIMPLE_ELEMENT |	\
1003 	 MPT_TRANSFER_HOST_TO_IOC)
1004 
1005 /*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1006 #endif
1007 
1008