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[SCSI] mpt fusion: Optimized SendEvent notification Using Doorbell instead FIFO
[linux-2.6-block.git] / drivers / message / fusion / mptbase.h
CommitLineData
1da177e4
LT		 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
f36789e2 6 * running LSI Fusion MPT (Message Passing Technology) firmware.
1da177e4 7 *
cddc0ab7 8 * Copyright (c) 1999-2008 LSI Corporation
16d20101 9 * (mailto:DL-MPTFusionLinux@lsi.com)
1da177e4 10 *
1da177e4
LT		 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
1da177e4
LT		 52#include <linux/kernel.h>
53#include <linux/pci.h>
ed5f606f 54#include <linux/mutex.h>
1da177e4
LT		 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 */
82ffb671 67#include "lsi/mpi_sas.h" /* SAS support */
1da177e4
LT		 68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70
71#ifndef MODULEAUTHOR
f36789e2 72#define MODULEAUTHOR "LSI Corporation"
1da177e4
LT		 73#endif
74
75#ifndef COPYRIGHT
cddc0ab7 76#define COPYRIGHT "Copyright (c) 1999-2008 " MODULEAUTHOR
1da177e4
LT		 77#endif
78
14d0f0b0
KD		 79#define MPT_LINUX_VERSION_COMMON "3.04.08"
80#define MPT_LINUX_PACKAGE_NAME "@(#)mptlinux-3.04.08"
1da177e4
LT		 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_BUS 1 /* Do not change */
93#define MPT_MAX_FC_DEVICES 255
94#define MPT_MAX_SCSI_DEVICES 16
95#define MPT_LAST_LUN 255
96#define MPT_SENSE_BUFFER_ALLOC 64
97 /* allow for 256 max sense alloc, but only 255 max request */
98#if MPT_SENSE_BUFFER_ALLOC >= 256
99# undef MPT_SENSE_BUFFER_ALLOC
100# define MPT_SENSE_BUFFER_ALLOC 256
101# define MPT_SENSE_BUFFER_SIZE 255
102#else
103# define MPT_SENSE_BUFFER_SIZE MPT_SENSE_BUFFER_ALLOC
104#endif
105
106#define MPT_NAME_LENGTH 32
107
108#define MPT_PROCFS_MPTBASEDIR "mpt"
109 /* chg it to "driver/fusion" ? */
110#define MPT_PROCFS_SUMMARY_ALL_NODE MPT_PROCFS_MPTBASEDIR "/summary"
111#define MPT_PROCFS_SUMMARY_ALL_PATHNAME "/proc/" MPT_PROCFS_SUMMARY_ALL_NODE
112#define MPT_FW_REV_MAGIC_ID_STRING "FwRev="
113
114#define MPT_MAX_REQ_DEPTH 1023
115#define MPT_DEFAULT_REQ_DEPTH 256
116#define MPT_MIN_REQ_DEPTH 128
117
118#define MPT_MAX_REPLY_DEPTH MPT_MAX_REQ_DEPTH
119#define MPT_DEFAULT_REPLY_DEPTH 128
120#define MPT_MIN_REPLY_DEPTH 8
121#define MPT_MAX_REPLIES_PER_ISR 32
122
123#define MPT_MAX_FRAME_SIZE 128
124#define MPT_DEFAULT_FRAME_SIZE 128
125
928496ac 126#define MPT_REPLY_FRAME_SIZE 0x50 /* Must be a multiple of 8 */
1da177e4
LT		 127
128#define MPT_SG_REQ_128_SCALE 1
129#define MPT_SG_REQ_96_SCALE 2
130#define MPT_SG_REQ_64_SCALE 4
131
132#define CAN_SLEEP 1
133#define NO_SLEEP 0
134
135#define MPT_COALESCING_TIMEOUT 0x10
136
14d0f0b0 137
1da177e4
LT		 138/*
139 * SCSI transfer rate defines.
140 */
141#define MPT_ULTRA320 0x08
142#define MPT_ULTRA160 0x09
143#define MPT_ULTRA2 0x0A
144#define MPT_ULTRA 0x0C
145#define MPT_FAST 0x19
146#define MPT_SCSI 0x32
147#define MPT_ASYNC 0xFF
148
149#define MPT_NARROW 0
150#define MPT_WIDE 1
151
152#define C0_1030 0x08
153#define XL_929 0x01
154
155
156/*
157 * Try to keep these at 2^N-1
158 */
159#define MPT_FC_CAN_QUEUE 127
160#define MPT_SCSI_CAN_QUEUE 127
161
162/*
163 * Set the MAX_SGE value based on user input.
164 */
165#ifdef CONFIG_FUSION_MAX_SGE
166#if CONFIG_FUSION_MAX_SGE < 16
167#define MPT_SCSI_SG_DEPTH 16
168#elif CONFIG_FUSION_MAX_SGE > 128
169#define MPT_SCSI_SG_DEPTH 128
170#else
171#define MPT_SCSI_SG_DEPTH CONFIG_FUSION_MAX_SGE
172#endif
173#else
174#define MPT_SCSI_SG_DEPTH 40
175#endif
176
c6c727a1
EM		 177/* debug print string length used for events and iocstatus */
178# define EVENT_DESCR_STR_SZ 100
179
d54d48b8
PS		 180#define MPT_POLLING_INTERVAL 1000 /* in milliseconds */
181
1da177e4
LT		 182#ifdef __KERNEL__ /* { */
183/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
184
185#include <linux/proc_fs.h>
186
187/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
188/*
189 * Attempt semi-consistent error & warning msgs across
190 * MPT drivers. NOTE: Users of these macro defs must
191 * themselves define their own MYNAM.
192 */
c51d0bea 193#define MYIOC_s_FMT MYNAM ": %s: "
5c1b91b9 194#define MYIOC_s_DEBUG_FMT KERN_DEBUG MYNAM ": %s: "
1da177e4
LT		 195#define MYIOC_s_INFO_FMT KERN_INFO MYNAM ": %s: "
196#define MYIOC_s_NOTE_FMT KERN_NOTICE MYNAM ": %s: "
197#define MYIOC_s_WARN_FMT KERN_WARNING MYNAM ": %s: WARNING - "
198#define MYIOC_s_ERR_FMT KERN_ERR MYNAM ": %s: ERROR - "
199
232f08fc
EM		 200/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
201/*
202 * ATTO UL4D associated structures and defines
203 */
204#define ATTOFLAG_DISC 0x0001
205#define ATTOFLAG_TAGGED 0x0002
206#define ATTOFLAG_WIDE_ENB 0x0008
207#define ATTOFLAG_ID_ENB 0x0010
208#define ATTOFLAG_LUN_ENB 0x0060
209
210typedef struct _ATTO_DEVICE_INFO
211{
212 u8 Offset; /* 00h */
213 u8 Period; /* 01h */
214 u16 ATTOFlags; /* 02h */
215} ATTO_DEVICE_INFO, MPI_POINTER PTR_ATTO_DEVICE_INFO,
216 ATTODeviceInfo_t, MPI_POINTER pATTODeviceInfo_t;
217
218typedef struct _ATTO_CONFIG_PAGE_SCSI_PORT_2
219{
220 CONFIG_PAGE_HEADER Header; /* 00h */
221 u16 PortFlags; /* 04h */
222 u16 Unused1; /* 06h */
223 u32 Unused2; /* 08h */
224 ATTO_DEVICE_INFO DeviceSettings[16]; /* 0Ch */
225} fATTO_CONFIG_PAGE_SCSI_PORT_2, MPI_POINTER PTR_ATTO_CONFIG_PAGE_SCSI_PORT_2,
226 ATTO_SCSIPortPage2_t, MPI_POINTER pATTO_SCSIPortPage2_t;
227
228
1da177e4
LT		 229/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
230/*
231 * MPT protocol driver defs...
232 */
233typedef enum {
234 MPTBASE_DRIVER, /* MPT base class */
235 MPTCTL_DRIVER, /* MPT ioctl class */
7fadc87e
MED		 236 MPTSPI_DRIVER, /* MPT SPI host class */
237 MPTFC_DRIVER, /* MPT FC host class */
238 MPTSAS_DRIVER, /* MPT SAS host class */
1da177e4
LT		 239 MPTLAN_DRIVER, /* MPT LAN class */
240 MPTSTM_DRIVER, /* MPT SCSI target mode class */
241 MPTUNKNOWN_DRIVER
242} MPT_DRIVER_CLASS;
243
244struct mpt_pci_driver{
245 int (*probe) (struct pci_dev *dev, const struct pci_device_id *id);
246 void (*remove) (struct pci_dev *dev);
1da177e4
LT		 247};
248
249/*
250 * MPT adapter / port / bus / device info structures...
251 */
252
253typedef union _MPT_FRAME_TRACKER {
254 struct {
255 struct list_head list;
256 u32 arg1;
257 u32 pad;
258 void *argp1;
259 } linkage;
260 /*
261 * NOTE: When request frames are free, on the linkage structure
262 * contets are valid. All other values are invalid.
263 * In particular, do NOT reply on offset [2]
264 * (in words) being the * message context.
265 * The message context must be reset (computed via base address
266 * + an offset) prior to issuing any command.
267 *
268 * NOTE2: On non-32-bit systems, where pointers are LARGE,
269 * using the linkage pointers destroys our sacred MsgContext
270 * field contents. But we don't care anymore because these
271 * are now reset in mpt_put_msg_frame() just prior to sending
272 * a request off to the IOC.
273 */
274 struct {
275 u32 __hdr[2];
276 /*
277 * The following _MUST_ match the location of the
278 * MsgContext field in the MPT message headers.
279 */
280 union {
281 u32 MsgContext;
282 struct {
283 u16 req_idx; /* Request index */
284 u8 cb_idx; /* callback function index */
285 u8 rsvd;
286 } fld;
287 } msgctxu;
288 } hwhdr;
289 /*
290 * Remark: 32 bit identifier:
291 * 31-24: reserved
292 * 23-16: call back index
293 * 15-0 : request index
294 */
295} MPT_FRAME_TRACKER;
296
297/*
298 * We might want to view/access a frame as:
299 * 1) generic request header
300 * 2) SCSIIORequest
301 * 3) SCSIIOReply
302 * 4) MPIDefaultReply
303 * 5) frame tracker
304 */
305typedef struct _MPT_FRAME_HDR {
306 union {
307 MPIHeader_t hdr;
308 SCSIIORequest_t scsireq;
309 SCSIIOReply_t sreply;
310 ConfigReply_t configreply;
311 MPIDefaultReply_t reply;
312 MPT_FRAME_TRACKER frame;
313 } u;
314} MPT_FRAME_HDR;
315
316#define MPT_REQ_MSGFLAGS_DROPME 0x80
317
318typedef struct _MPT_SGL_HDR {
319 SGESimple32_t sge[1];
320} MPT_SGL_HDR;
321
322typedef struct _MPT_SGL64_HDR {
323 SGESimple64_t sge[1];
324} MPT_SGL64_HDR;
325
326/*
327 * System interface register set
328 */
329
330typedef struct _SYSIF_REGS
331{
332 u32 Doorbell; /* 00 System<->IOC Doorbell reg */
333 u32 WriteSequence; /* 04 Write Sequence register */
334 u32 Diagnostic; /* 08 Diagnostic register */
335 u32 TestBase; /* 0C Test Base Address */
336 u32 DiagRwData; /* 10 Read Write Data (fw download) */
337 u32 DiagRwAddress; /* 14 Read Write Address (fw download)*/
338 u32 Reserved1[6]; /* 18-2F reserved for future use */
339 u32 IntStatus; /* 30 Interrupt Status */
340 u32 IntMask; /* 34 Interrupt Mask */
341 u32 Reserved2[2]; /* 38-3F reserved for future use */
342 u32 RequestFifo; /* 40 Request Post/Free FIFO */
343 u32 ReplyFifo; /* 44 Reply Post/Free FIFO */
7a195f46
PS		 344 u32 RequestHiPriFifo; /* 48 Hi Priority Request FIFO */
345 u32 Reserved3; /* 4C-4F reserved for future use */
1da177e4
LT		 346 u32 HostIndex; /* 50 Host Index register */
347 u32 Reserved4[15]; /* 54-8F */
348 u32 Fubar; /* 90 For Fubar usage */
3dc0b03f
EM		 349 u32 Reserved5[1050];/* 94-10F8 */
350 u32 Reset_1078; /* 10FC Reset 1078 */
1da177e4
LT		 351} SYSIF_REGS;
352
353/*
354 * NOTE: Use MPI_{DOORBELL,WRITESEQ,DIAG}_xxx defs in lsi/mpi.h
355 * in conjunction with SYSIF_REGS accesses!
356 */
357
358
359/*
360 * Dynamic Multi-Pathing specific stuff...
361 */
362
c7c82987 363/* VirtTarget negoFlags field */
1da177e4
LT		 364#define MPT_TARGET_NO_NEGO_WIDE 0x01
365#define MPT_TARGET_NO_NEGO_SYNC 0x02
366#define MPT_TARGET_NO_NEGO_QAS 0x04
367#define MPT_TAPE_NEGO_IDP 0x08
368
369/*
370 * VirtDevice - FC LUN device or SCSI target device
371 */
c7c82987 372typedef struct _VirtTarget {
c92f222e 373 struct scsi_target *starget;
1da177e4
LT		 374 u8 tflags;
375 u8 ioc_id;
793955f5
EM		 376 u8 id;
377 u8 channel;
1da177e4
LT		 378 u8 minSyncFactor; /* 0xFF is async */
379 u8 maxOffset; /* 0 if async */
380 u8 maxWidth; /* 0 if narrow, 1 if wide */
381 u8 negoFlags; /* bit field, see above */
382 u8 raidVolume; /* set, if RAID Volume */
383 u8 type; /* byte 0 of Inquiry data */
547f9a21 384 u8 deleted; /* target in process of being removed */
1da177e4 385 u32 num_luns;
c7c82987
MED		 386} VirtTarget;
387
388typedef struct _VirtDevice {
914c2d8e 389 VirtTarget *vtarget;
c7c82987 390 u8 configured_lun;
793955f5 391 int lun;
1da177e4
LT		 392} VirtDevice;
393
394/*
395 * Fibre Channel (SCSI) target device and associated defines...
396 */
397#define MPT_TARGET_DEFAULT_DV_STATUS 0x00
398#define MPT_TARGET_FLAGS_VALID_NEGO 0x01
399#define MPT_TARGET_FLAGS_VALID_INQUIRY 0x02
400#define MPT_TARGET_FLAGS_Q_YES 0x08
401#define MPT_TARGET_FLAGS_VALID_56 0x10
402#define MPT_TARGET_FLAGS_SAF_TE_ISSUED 0x20
c92f222e 403#define MPT_TARGET_FLAGS_RAID_COMPONENT 0x40
786899b0 404#define MPT_TARGET_FLAGS_LED_ON 0x80
1da177e4
LT		 405
406/*
407 * /proc/mpt interface
408 */
409typedef struct {
410 const char *name;
411 mode_t mode;
412 int pad;
413 read_proc_t *read_proc;
414 write_proc_t *write_proc;
415} mpt_proc_entry_t;
416
417#define MPT_PROC_READ_RETURN(buf,start,offset,request,eof,len) \
418do { \
419 len -= offset; \
420 if (len < request) { \
421 *eof = 1; \
422 if (len <= 0) \
423 return 0; \
424 } else \
425 len = request; \
426 *start = buf + offset; \
427 return len; \
428} while (0)
429
430
431/*
432 * IOCTL structure and associated defines
433 */
434
435#define MPT_IOCTL_STATUS_DID_IOCRESET 0x01 /* IOC Reset occurred on the current*/
436#define MPT_IOCTL_STATUS_RF_VALID 0x02 /* The Reply Frame is VALID */
437#define MPT_IOCTL_STATUS_TIMER_ACTIVE 0x04 /* The timer is running */
438#define MPT_IOCTL_STATUS_SENSE_VALID 0x08 /* Sense data is valid */
439#define MPT_IOCTL_STATUS_COMMAND_GOOD 0x10 /* Command Status GOOD */
440#define MPT_IOCTL_STATUS_TMTIMER_ACTIVE 0x20 /* The TM timer is running */
441#define MPT_IOCTL_STATUS_TM_FAILED 0x40 /* User TM request failed */
442
443#define MPTCTL_RESET_OK 0x01 /* Issue Bus Reset */
444
445typedef struct _MPT_IOCTL {
446 struct _MPT_ADAPTER *ioc;
447 u8 ReplyFrame[MPT_DEFAULT_FRAME_SIZE]; /* reply frame data */
448 u8 sense[MPT_SENSE_BUFFER_ALLOC];
449 int wait_done; /* wake-up value for this ioc */
450 u8 rsvd;
451 u8 status; /* current command status */
452 u8 reset; /* 1 if bus reset allowed */
793955f5 453 u8 id; /* target for reset */
eeb846ce 454 struct mutex ioctl_mutex;
1da177e4
LT		 455} MPT_IOCTL;
456
da4fa655
CH		 457#define MPT_SAS_MGMT_STATUS_RF_VALID 0x02 /* The Reply Frame is VALID */
458#define MPT_SAS_MGMT_STATUS_COMMAND_GOOD 0x10 /* Command Status GOOD */
459#define MPT_SAS_MGMT_STATUS_TM_FAILED 0x40 /* User TM request failed */
460
461typedef struct _MPT_SAS_MGMT {
eeb846ce 462 struct mutex mutex;
da4fa655
CH		 463 struct completion done;
464 u8 reply[MPT_DEFAULT_FRAME_SIZE]; /* reply frame data */
465 u8 status; /* current command status */
466}MPT_SAS_MGMT;
467
1da177e4
LT		 468/*
469 * Event Structure and define
470 */
466544d8 471#define MPTCTL_EVENT_LOG_SIZE (0x000000032)
1da177e4
LT		 472typedef struct _mpt_ioctl_events {
473 u32 event; /* Specified by define above */
474 u32 eventContext; /* Index or counter */
3d9780b9 475 u32 data[2]; /* First 8 bytes of Event Data */
1da177e4
LT		 476} MPT_IOCTL_EVENTS;
477
478/*
479 * CONFIGPARM status defines
480 */
481#define MPT_CONFIG_GOOD MPI_IOCSTATUS_SUCCESS
482#define MPT_CONFIG_ERROR 0x002F
483
484/*
485 * Substructure to store SCSI specific configuration page data
486 */
487 /* dvStatus defines: */
1da177e4
LT		 488#define MPT_SCSICFG_USE_NVRAM 0x01 /* WriteSDP1 using NVRAM */
489#define MPT_SCSICFG_ALL_IDS 0x02 /* WriteSDP1 to all IDS */
490/* #define MPT_SCSICFG_BLK_NEGO 0x10 WriteSDP1 with WDTR and SDTR disabled */
491
466544d8 492typedef struct _SpiCfgData {
1da177e4
LT		 493 u32 PortFlags;
494 int *nvram; /* table of device NVRAM values */
1da177e4
LT		 495 IOCPage4_t *pIocPg4; /* SEP devices addressing */
496 dma_addr_t IocPg4_dma; /* Phys Addr of IOCPage4 data */
497 int IocPg4Sz; /* IOCPage4 size */
1da177e4
LT		 498 u8 minSyncFactor; /* 0xFF if async */
499 u8 maxSyncOffset; /* 0 if async */
500 u8 maxBusWidth; /* 0 if narrow, 1 if wide */
501 u8 busType; /* SE, LVD, HD */
502 u8 sdp1version; /* SDP1 version */
503 u8 sdp1length; /* SDP1 length */
504 u8 sdp0version; /* SDP0 version */
505 u8 sdp0length; /* SDP0 length */
506 u8 dvScheduled; /* 1 if scheduled */
1da177e4 507 u8 noQas; /* Disable QAS for this adapter */
466544d8
MED		 508 u8 Saf_Te; /* 1 to force all Processors as
509 * SAF-TE if Inquiry data length
510 * is too short to check for SAF-TE
511 */
466544d8 512 u8 bus_reset; /* 1 to allow bus reset */
1da177e4 513 u8 rsvd[1];
466544d8 514}SpiCfgData;
1da177e4 515
82ffb671
CH		 516typedef struct _SasCfgData {
517 u8 ptClear; /* 1 to automatically clear the
518 * persistent table.
519 * 0 to disable
520 * automatic clearing.
521 */
522}SasCfgData;
523
b506ade9
EM		 524/*
525 * Inactive volume link list of raid component data
526 * @inactive_list
527 */
528struct inactive_raid_component_info {
529 struct list_head list;
530 u8 volumeID; /* volume target id */
531 u8 volumeBus; /* volume channel */
532 IOC_3_PHYS_DISK d; /* phys disk info */
533};
534
466544d8
MED		 535typedef struct _RaidCfgData {
536 IOCPage2_t *pIocPg2; /* table of Raid Volumes */
537 IOCPage3_t *pIocPg3; /* table of physical disks */
ed5f606f 538 struct mutex inactive_list_mutex;
b506ade9
EM		 539 struct list_head inactive_list; /* link list for physical
540 disk that belong in
541 inactive volumes */
466544d8
MED		 542}RaidCfgData;
543
ca2f938e
MR		 544typedef struct _FcCfgData {
545 /* will ultimately hold fc_port_page0 also */
546 struct {
547 FCPortPage1_t *data;
548 dma_addr_t dma;
549 int pg_sz;
550 } fc_port_page1[2];
551} FcCfgData;
552
05e8ec17
MR		 553#define MPT_RPORT_INFO_FLAGS_REGISTERED 0x01 /* rport registered */
554#define MPT_RPORT_INFO_FLAGS_MISSING 0x02 /* missing from DevPage0 scan */
05e8ec17
MR		 555
556/*
557 * data allocated for each fc rport device
558 */
559struct mptfc_rport_info
560{
561 struct list_head list;
562 struct fc_rport *rport;
3bc7bf1d 563 struct scsi_target *starget;
05e8ec17
MR		 564 FCDevicePage0_t pg0;
565 u8 flags;
566};
567
14d0f0b0
KD		 568typedef void (*MPT_ADD_SGE)(void *pAddr, u32 flagslength, dma_addr_t dma_addr);
569typedef void (*MPT_ADD_CHAIN)(void *pAddr, u8 next, u16 length,
570 dma_addr_t dma_addr);
571
1da177e4
LT		 572/*
573 * Adapter Structure - pci_dev specific. Maximum: MPT_MAX_ADAPTERS
574 */
575typedef struct _MPT_ADAPTER
576{
577 int id; /* Unique adapter id N {0,1,2,...} */
578 int pci_irq; /* This irq */
579 char name[MPT_NAME_LENGTH]; /* "iocN" */
ef1d8df7 580 char prod_name[MPT_NAME_LENGTH]; /* "LSIFC9x9" */
edb9068d
PS		 581 char board_name[16];
582 char board_assembly[16];
583 char board_tracer[16];
584 u16 nvdata_version_persistent;
585 u16 nvdata_version_default;
5c1b91b9 586 int debug_level;
edb9068d
PS		 587 u8 io_missing_delay;
588 u8 device_missing_delay;
1da177e4
LT		 589 SYSIF_REGS __iomem *chip; /* == c8817000 (mmap) */
590 SYSIF_REGS __iomem *pio_chip; /* Programmed IO (downloadboot) */
591 u8 bus_type;
592 u32 mem_phys; /* == f4020000 (mmap) */
593 u32 pio_mem_phys; /* Programmed IO (downloadboot) */
594 int mem_size; /* mmap memory size */
793955f5
EM		 595 int number_of_buses;
596 int devices_per_bus;
1da177e4
LT		 597 int alloc_total;
598 u32 last_state;
599 int active;
600 u8 *alloc; /* frames alloc ptr */
601 dma_addr_t alloc_dma;
602 u32 alloc_sz;
603 MPT_FRAME_HDR *reply_frames; /* Reply msg frames - rounded up! */
604 u32 reply_frames_low_dma;
605 int reply_depth; /* Num Allocated reply frames */
606 int reply_sz; /* Reply frame size */
607 int num_chain; /* Number of chain buffers */
14d0f0b0
KD		 608 MPT_ADD_SGE add_sge; /* Pointer to add_sge
609 function */
610 MPT_ADD_CHAIN add_chain; /* Pointer to add_chain
611 function */
1da177e4
LT		 612 /* Pool of buffers for chaining. ReqToChain
613 * and ChainToChain track index of chain buffers.
614 * ChainBuffer (DMA) virt/phys addresses.
615 * FreeChainQ (lock) locking mechanisms.
616 */
617 int *ReqToChain;
618 int *RequestNB;
619 int *ChainToChain;
620 u8 *ChainBuffer;
621 dma_addr_t ChainBufferDMA;
622 struct list_head FreeChainQ;
623 spinlock_t FreeChainQlock;
624 /* We (host driver) get to manage our own RequestQueue! */
625 dma_addr_t req_frames_dma;
626 MPT_FRAME_HDR *req_frames; /* Request msg frames - rounded up! */
627 u32 req_frames_low_dma;
628 int req_depth; /* Number of request frames */
629 int req_sz; /* Request frame size (bytes) */
630 spinlock_t FreeQlock;
631 struct list_head FreeQ;
632 /* Pool of SCSI sense buffers for commands coming from
633 * the SCSI mid-layer. We have one 256 byte sense buffer
634 * for each REQ entry.
635 */
636 u8 *sense_buf_pool;
637 dma_addr_t sense_buf_pool_dma;
638 u32 sense_buf_low_dma;
82ffb671
CH		 639 u8 *HostPageBuffer; /* SAS - host page buffer support */
640 u32 HostPageBuffer_sz;
641 dma_addr_t HostPageBuffer_dma;
1da177e4
LT		 642 int mtrr_reg;
643 struct pci_dev *pcidev; /* struct pci_dev pointer */
e78d5b8f 644 int bars; /* bitmask of BAR's that must be configured */
23a274c8 645 int msi_enable;
1da177e4
LT		 646 u8 __iomem *memmap; /* mmap address */
647 struct Scsi_Host *sh; /* Scsi Host pointer */
466544d8
MED		 648 SpiCfgData spi_data; /* Scsi config. data */
649 RaidCfgData raid_data; /* Raid config. data */
82ffb671 650 SasCfgData sas_data; /* Sas config. data */
ca2f938e 651 FcCfgData fc_data; /* Fc config. data */
1da177e4
LT		 652 MPT_IOCTL *ioctl; /* ioctl data pointer */
653 struct proc_dir_entry *ioc_dentry;
654 struct _MPT_ADAPTER *alt_ioc; /* ptr to 929 bound adapter port */
655 spinlock_t diagLock; /* diagnostic reset lock */
656 int diagPending;
657 u32 biosVersion; /* BIOS version from IO Unit Page 2 */
658 int eventTypes; /* Event logging parameters */
659 int eventContext; /* Next event context */
660 int eventLogSize; /* Max number of cached events */
661 struct _mpt_ioctl_events *events; /* pointer to event log */
662 u8 *cached_fw; /* Pointer to FW */
663 dma_addr_t cached_fw_dma;
664 struct list_head configQ; /* linked list of config. requests */
665 int hs_reply_idx;
666#ifndef MFCNT
667 u32 pad0;
668#else
669 u32 mfcnt;
670#endif
82ffb671 671 u32 NB_for_64_byte_frame;
1da177e4
LT		 672 u32 hs_req[MPT_MAX_FRAME_SIZE/sizeof(u32)];
673 u16 hs_reply[MPT_MAX_FRAME_SIZE/sizeof(u16)];
674 IOCFactsReply_t facts;
675 PortFactsReply_t pfacts[2];
676 FCPortPage0_t fc_port_page0[2];
82ffb671
CH		 677 struct timer_list persist_timer; /* persist table timer */
678 int persist_wait_done; /* persist completion flag */
679 u8 persist_reply_frame[MPT_DEFAULT_FRAME_SIZE]; /* persist reply */
1da177e4
LT		 680 LANPage0_t lan_cnfg_page0;
681 LANPage1_t lan_cnfg_page1;
b506ade9
EM		 682
683 u8 ir_firmware; /* =1 if IR firmware detected */
82ffb671 684 /*
3fadc59d
MED		 685 * Description: errata_flag_1064
686 * If a PCIX read occurs within 1 or 2 cycles after the chip receives
687 * a split completion for a read data, an internal address pointer incorrectly
688 * increments by 32 bytes
689 */
82ffb671 690 int errata_flag_1064;
ea5a7a82 691 int aen_event_read_flag; /* flag to indicate event log was read*/
1da177e4
LT		 692 u8 FirstWhoInit;
693 u8 upload_fw; /* If set, do a fw upload */
694 u8 reload_fw; /* Force a FW Reload on next reset */
82ffb671 695 u8 NBShiftFactor; /* NB Shift Factor based on Block Size (Facts) */
1da177e4 696 u8 pad1[4];
f606f571
PS		 697 u8 DoneCtx;
698 u8 TaskCtx;
699 u8 InternalCtx;
2a238ea5
MED		 700 spinlock_t initializing_hba_lock;
701 int initializing_hba_lock_flag;
82ffb671 702 struct list_head list;
1da177e4 703 struct net_device *netdev;
82ffb671 704 struct list_head sas_topology;
9a28f49a 705 struct mutex sas_topology_mutex;
e6b2d76a
ME		 706 struct mutex sas_discovery_mutex;
707 u8 sas_discovery_runtime;
708 u8 sas_discovery_ignore_events;
7b5a65b9 709 u8 sas_discovery_quiesce_io;
e6b2d76a 710 int sas_index; /* index refrencing */
da4fa655 711 MPT_SAS_MGMT sas_mgmt;
547f9a21 712 struct work_struct sas_persist_task;
05e8ec17 713
419835e2 714 struct work_struct fc_setup_reset_work;
05e8ec17 715 struct list_head fc_rports;
eb5329f4
PS		 716 struct work_struct fc_lsc_work;
717 u8 fc_link_speed[2];
05e8ec17 718 spinlock_t fc_rescan_work_lock;
05e8ec17 719 struct work_struct fc_rescan_work;
aab0de24 720 char fc_rescan_work_q_name[20];
65207fed 721 struct workqueue_struct *fc_rescan_work_q;
e8206381
EM		 722 struct scsi_cmnd **ScsiLookup;
723 spinlock_t scsi_lookup_lock;
14d0f0b0 724 u64 dma_mask;
aab0de24 725 char reset_work_q_name[20];
d54d48b8
PS		 726 struct workqueue_struct *reset_work_q;
727 struct delayed_work fault_reset_work;
728 spinlock_t fault_reset_work_lock;
729
14d0f0b0
KD		 730 u8 sg_addr_size;
731 u8 SGE_size;
732
1da177e4
LT		 733} MPT_ADAPTER;
734
735/*
736 * New return value convention:
737 * 1 = Ok to free associated request frame
738 * 0 = not Ok ...
739 */
740typedef int (*MPT_CALLBACK)(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
741typedef int (*MPT_EVHANDLER)(MPT_ADAPTER *ioc, EventNotificationReply_t *evReply);
742typedef int (*MPT_RESETHANDLER)(MPT_ADAPTER *ioc, int reset_phase);
743/* reset_phase defs */
744#define MPT_IOC_PRE_RESET 0
745#define MPT_IOC_POST_RESET 1
746#define MPT_IOC_SETUP_RESET 2
747
748/*
749 * Invent MPT host event (super-set of MPI Events)
750 * Fitted to 1030's 64-byte [max] request frame size
751 */
752typedef struct _MPT_HOST_EVENT {
753 EventNotificationReply_t MpiEvent; /* 8 32-bit words! */
754 u32 pad[6];
755 void *next;
756} MPT_HOST_EVENT;
757
758#define MPT_HOSTEVENT_IOC_BRINGUP 0x91
759#define MPT_HOSTEVENT_IOC_RECOVER 0x92
760
761/* Define the generic types based on the size
762 * of the dma_addr_t type.
763 */
764typedef struct _mpt_sge {
765 u32 FlagsLength;
766 dma_addr_t Address;
767} MptSge_t;
768
1da177e4 769
14d0f0b0
KD		 770#define mpt_msg_flags(ioc) \
771 (ioc->sg_addr_size == sizeof(u64)) ? \
772 MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_64 : \
773 MPI_SCSIIO_MSGFLGS_SENSE_WIDTH_32
774
775#define MPT_SGE_FLAGS_64_BIT_ADDRESSING \
776 (MPI_SGE_FLAGS_64_BIT_ADDRESSING << MPI_SGE_FLAGS_SHIFT)
1da177e4
LT		 777
778/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
779/*
780 * Funky (private) macros...
781 */
5c1b91b9 782#include "mptdebug.h"
1da177e4
LT		 783
784#define MPT_INDEX_2_MFPTR(ioc,idx) \
785 (MPT_FRAME_HDR*)( (u8*)(ioc)->req_frames + (ioc)->req_sz * (idx) )
786
787#define MFPTR_2_MPT_INDEX(ioc,mf) \
788 (int)( ((u8*)mf - (u8*)(ioc)->req_frames) / (ioc)->req_sz )
789
790#define MPT_INDEX_2_RFPTR(ioc,idx) \
791 (MPT_FRAME_HDR*)( (u8*)(ioc)->reply_frames + (ioc)->req_sz * (idx) )
792
1da177e4
LT		 793/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
794
795#define SCSI_STD_SENSE_BYTES 18
796#define SCSI_STD_INQUIRY_BYTES 36
797#define SCSI_MAX_INQUIRY_BYTES 96
798
799/*
800 * MPT_SCSI_HOST defines - Used by the IOCTL and the SCSI drivers
801 * Private to the driver.
802 */
803/* LOCAL structure and fields used when processing
804 * internally generated commands. These include:
805 * bus scan, dv and config requests.
806 */
807typedef struct _MPT_LOCAL_REPLY {
808 ConfigPageHeader_t header;
809 int completion;
810 u8 sense[SCSI_STD_SENSE_BYTES];
811 u8 scsiStatus;
812 u8 skip;
813 u32 pad;
814} MPT_LOCAL_REPLY;
815
816#define MPT_HOST_BUS_UNKNOWN (0xFF)
817#define MPT_HOST_TOO_MANY_TM (0x05)
818#define MPT_HOST_NVRAM_INVALID (0xFFFFFFFF)
819#define MPT_HOST_NO_CHAIN (0xFFFFFFFF)
820#define MPT_NVRAM_MASK_TIMEOUT (0x000000FF)
821#define MPT_NVRAM_SYNC_MASK (0x0000FF00)
822#define MPT_NVRAM_SYNC_SHIFT (8)
823#define MPT_NVRAM_DISCONNECT_ENABLE (0x00010000)
824#define MPT_NVRAM_ID_SCAN_ENABLE (0x00020000)
825#define MPT_NVRAM_LUN_SCAN_ENABLE (0x00040000)
826#define MPT_NVRAM_TAG_QUEUE_ENABLE (0x00080000)
827#define MPT_NVRAM_WIDE_DISABLE (0x00100000)
828#define MPT_NVRAM_BOOT_CHOICE (0x00200000)
829
830/* The TM_STATE variable is used to provide strict single threading of TM
831 * requests as well as communicate TM error conditions.
832 */
833#define TM_STATE_NONE (0)
834#define TM_STATE_IN_PROGRESS (1)
835#define TM_STATE_ERROR (2)
836
837typedef enum {
838 FC,
a9b2937a 839 SPI,
1da177e4
LT		 840 SAS
841} BUS_TYPE;
842
843typedef struct _MPT_SCSI_HOST {
844 MPT_ADAPTER *ioc;
845 int port;
846 u32 pad0;
1da177e4
LT		 847 MPT_LOCAL_REPLY *pLocal; /* used for internal commands */
848 struct timer_list timer;
849 /* Pool of memory for holding SCpnts before doing
850 * OS callbacks. freeQ is the free pool.
851 */
852 u8 tmPending;
853 u8 resetPending;
854 u8 negoNvram; /* DV disabled, nego NVRAM */
855 u8 pad1;
856 u8 tmState;
857 u8 rsvd[2];
858 MPT_FRAME_HDR *cmdPtr; /* Ptr to nonOS request */
859 struct scsi_cmnd *abortSCpnt;
860 MPT_LOCAL_REPLY localReply; /* internal cmd reply struct */
861 unsigned long hard_resets; /* driver forced bus resets count */
862 unsigned long soft_resets; /* fw/external bus resets count */
863 unsigned long timeouts; /* cmd timeouts */
864 ushort sel_timeout[MPT_MAX_FC_DEVICES];
7fadc87e
MED		 865 char *info_kbuf;
866 wait_queue_head_t scandv_waitq;
867 int scandv_wait_done;
868 long last_queue_full;
3dc0b03f 869 u16 tm_iocstatus;
72978245 870 u16 spi_pending;
df9e062a 871 struct list_head target_reset_list;
1da177e4
LT		 872} MPT_SCSI_HOST;
873
874/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
875/*
876 * More Dynamic Multi-Pathing stuff...
877 */
878
879/* Forward decl, a strange C thing, to prevent gcc compiler warnings */
880struct scsi_cmnd;
881
882/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
883/*
884 * Generic structure passed to the base mpt_config function.
885 */
886typedef struct _x_config_parms {
887 struct list_head linkage; /* linked list */
888 struct timer_list timer; /* timer function for this request */
69218ee5
CH		 889 union {
890 ConfigExtendedPageHeader_t *ehdr;
891 ConfigPageHeader_t *hdr;
892 } cfghdr;
1da177e4
LT		 893 dma_addr_t physAddr;
894 int wait_done; /* wait for this request */
895 u32 pageAddr; /* properly formatted */
896 u8 action;
897 u8 dir;
898 u8 timeout; /* seconds */
899 u8 pad1;
900 u16 status;
901 u16 pad2;
902} CONFIGPARMS;
903
904/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
905/*
906 * Public entry points...
907 */
7fadc87e
MED		 908extern int mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id);
909extern void mpt_detach(struct pci_dev *pdev);
910#ifdef CONFIG_PM
911extern int mpt_suspend(struct pci_dev *pdev, pm_message_t state);
912extern int mpt_resume(struct pci_dev *pdev);
913#endif
f606f571
PS		 914extern u8 mpt_register(MPT_CALLBACK cbfunc, MPT_DRIVER_CLASS dclass);
915extern void mpt_deregister(u8 cb_idx);
916extern int mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc);
917extern void mpt_event_deregister(u8 cb_idx);
918extern int mpt_reset_register(u8 cb_idx, MPT_RESETHANDLER reset_func);
919extern void mpt_reset_deregister(u8 cb_idx);
920extern int mpt_device_driver_register(struct mpt_pci_driver * dd_cbfunc, u8 cb_idx);
921extern void mpt_device_driver_deregister(u8 cb_idx);
922extern MPT_FRAME_HDR *mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc);
1da177e4 923extern void mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
f606f571
PS		 924extern void mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
925extern void mpt_put_msg_frame_hi_pri(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
1da177e4 926
f606f571 927extern int mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER *ioc, int reqBytes, u32 *req, int sleepFlag);
1da177e4
LT		 928extern int mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp);
929extern u32 mpt_GetIocState(MPT_ADAPTER *ioc, int cooked);
930extern void mpt_print_ioc_summary(MPT_ADAPTER *ioc, char *buf, int *size, int len, int showlan);
931extern int mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
932extern int mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *cfg);
984621b4 933extern int mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size);
1da177e4
LT		 934extern void mpt_free_fw_memory(MPT_ADAPTER *ioc);
935extern int mpt_findImVolumes(MPT_ADAPTER *ioc);
82ffb671 936extern int mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
b506ade9 937extern int mpt_raid_phys_disk_pg0(MPT_ADAPTER *ioc, u8 phys_disk_num, pRaidPhysDiskPage0_t phys_disk);
2f4c782c
KD		 938extern void mpt_halt_firmware(MPT_ADAPTER *ioc);
939
1da177e4
LT		 940
941/*
942 * Public data decl's...
943 */
944extern struct list_head ioc_list;
2f4c782c 945extern int mpt_fwfault_debug;
1da177e4 946
1da177e4
LT		 947/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
948#endif /* } __KERNEL__ */
949
2939deaa 950#ifdef CONFIG_64BIT
1da177e4
LT		 951#define CAST_U32_TO_PTR(x) ((void *)(u64)x)
952#define CAST_PTR_TO_U32(x) ((u32)(u64)x)
953#else
954#define CAST_U32_TO_PTR(x) ((void *)x)
955#define CAST_PTR_TO_U32(x) ((u32)x)
956#endif
957
958#define MPT_PROTOCOL_FLAGS_c_c_c_c(pflags) \
959 ((pflags) & MPI_PORTFACTS_PROTOCOL_INITIATOR) ? 'I' : 'i', \
960 ((pflags) & MPI_PORTFACTS_PROTOCOL_TARGET) ? 'T' : 't', \
961 ((pflags) & MPI_PORTFACTS_PROTOCOL_LAN) ? 'L' : 'l', \
962 ((pflags) & MPI_PORTFACTS_PROTOCOL_LOGBUSADDR) ? 'B' : 'b'
963
964/*
965 * Shifted SGE Defines - Use in SGE with FlagsLength member.
966 * Otherwise, use MPI_xxx defines (refer to "lsi/mpi.h" header).
967 * Defaults: 32 bit SGE, SYSTEM_ADDRESS if direction bit is 0, read
968 */
969#define MPT_TRANSFER_IOC_TO_HOST (0x00000000)
970#define MPT_TRANSFER_HOST_TO_IOC (0x04000000)
971#define MPT_SGE_FLAGS_LAST_ELEMENT (0x80000000)
972#define MPT_SGE_FLAGS_END_OF_BUFFER (0x40000000)
973#define MPT_SGE_FLAGS_LOCAL_ADDRESS (0x08000000)
974#define MPT_SGE_FLAGS_DIRECTION (0x04000000)
1da177e4
LT		 975#define MPT_SGE_FLAGS_END_OF_LIST (0x01000000)
976
977#define MPT_SGE_FLAGS_TRANSACTION_ELEMENT (0x00000000)
978#define MPT_SGE_FLAGS_SIMPLE_ELEMENT (0x10000000)
979#define MPT_SGE_FLAGS_CHAIN_ELEMENT (0x30000000)
980#define MPT_SGE_FLAGS_ELEMENT_MASK (0x30000000)
981
982#define MPT_SGE_FLAGS_SSIMPLE_READ \
983 (MPT_SGE_FLAGS_LAST_ELEMENT | \
984 MPT_SGE_FLAGS_END_OF_BUFFER | \
985 MPT_SGE_FLAGS_END_OF_LIST | \
986 MPT_SGE_FLAGS_SIMPLE_ELEMENT | \
1da177e4
LT		 987 MPT_TRANSFER_IOC_TO_HOST)
988#define MPT_SGE_FLAGS_SSIMPLE_WRITE \
989 (MPT_SGE_FLAGS_LAST_ELEMENT | \
990 MPT_SGE_FLAGS_END_OF_BUFFER | \
991 MPT_SGE_FLAGS_END_OF_LIST | \
992 MPT_SGE_FLAGS_SIMPLE_ELEMENT | \
1da177e4
LT		 993 MPT_TRANSFER_HOST_TO_IOC)
994
995/*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
996#endif
997
Linux 6.x block layer and io_uring tree(s)