File: /usr/src/linux/drivers/ieee1394/sbp2.h
1 /*
2 * sbp2.h - Defines and prototypes for sbp2.c
3 *
4 * Copyright (C) 2000 James Goodwin, Filanet Corporation (www.filanet.com)
5 * jamesg@filanet.com
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software Foundation,
19 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22 #ifndef SBP2_H
23 #define SBP2_H
24
25 #define SBP2_DEVICE_NAME "sbp2"
26 #define SBP2_DEVICE_NAME_SIZE 4
27
28 /*
29 * SBP2 specific structures and defines
30 */
31
32 #define ORB_FMT_CMD 0x0
33 #define ORB_FMT_DUMMY 0x3
34
35 #define ORB_DIRECTION_WRITE_TO_MEDIA 0x0
36 #define ORB_DIRECTION_READ_FROM_MEDIA 0x1
37 #define ORB_DIRECTION_NO_DATA_TRANSFER 0x2
38
39 #define SPEED_S100 0x0
40 #define SPEED_S200 0x1
41 #define SPEED_S400 0x2
42 #define SPEED_S800 0x3
43 #define SPEED_S1600 0x4
44 #define SPEED_S3200 0x5
45
46 /* 2^(MAX_PAYLOAD+1) = Maximum data transfer length */
47 #define MAX_PAYLOAD_S100 0x7
48 #define MAX_PAYLOAD_S200 0x8
49 #define MAX_PAYLOAD_S400 0x9
50
51 /* Max rec matches node_entry values */
52 #define MAX_REC_S100 512
53 #define MAX_REC_S200 1024
54 #define MAX_REC_S400 2048
55
56 #define ORB_SET_NOTIFY(value) ((value & 0x1) << 31)
57 #define ORB_SET_RQ_FMT(value) ((value & 0x3) << 29)
58 #define ORB_SET_NODE_ID(value) ((value & 0xffff) << 16)
59
60 struct sbp2_dummy_orb {
61 volatile u32 next_ORB_hi;
62 volatile u32 next_ORB_lo;
63 u32 reserved1;
64 u32 reserved2;
65 u32 notify_rq_fmt;
66 u8 command_block[12];
67 };
68
69 #define ORB_SET_DATA_SIZE(value) (value & 0xffff)
70 #define ORB_SET_PAGE_SIZE(value) ((value & 0x7) << 16)
71 #define ORB_SET_PAGE_TABLE_PRESENT(value) ((value & 0x1) << 19)
72 #define ORB_SET_MAX_PAYLOAD(value) ((value & 0xf) << 20)
73 #define ORB_SET_SPEED(value) ((value & 0x7) << 24)
74 #define ORB_SET_DIRECTION(value) ((value & 0x1) << 27)
75
76 struct sbp2_command_orb {
77 volatile u32 next_ORB_hi;
78 volatile u32 next_ORB_lo;
79 u32 data_descriptor_hi;
80 u32 data_descriptor_lo;
81 u32 misc;
82 u8 cdb[12];
83 };
84
85 #define LOGIN_REQUEST 0x0
86 #define QUERY_LOGINS_REQUEST 0x1
87 #define RECONNECT_REQUEST 0x3
88 #define SET_PASSWORD_REQUEST 0x4
89 #define LOGOUT_REQUEST 0x7
90 #define ABORT_TASK_REQUEST 0xb
91 #define ABORT_TASK_SET 0xc
92 #define LOGICAL_UNIT_RESET 0xe
93 #define TARGET_RESET_REQUEST 0xf
94
95 #define ORB_SET_LUN(value) (value & 0xffff)
96 #define ORB_SET_FUNCTION(value) ((value & 0xf) << 16)
97 #define ORB_SET_RECONNECT(value) ((value & 0xf) << 20)
98 #define ORB_SET_EXCLUSIVE(value) ((value & 0x1) << 28)
99 #define ORB_SET_LOGIN_RESP_LENGTH(value) (value & 0xffff)
100 #define ORB_SET_PASSWD_LENGTH(value) ((value & 0xffff) << 16)
101
102 struct sbp2_login_orb {
103 u32 password_hi;
104 u32 password_lo;
105 u32 login_response_hi;
106 u32 login_response_lo;
107 u32 lun_misc;
108 u32 passwd_resp_lengths;
109 u32 status_FIFO_hi;
110 u32 status_FIFO_lo;
111 };
112
113 #define RESPONSE_GET_LOGIN_ID(value) (value & 0xffff)
114 #define RESPONSE_GET_LENGTH(value) ((value >> 16) & 0xffff)
115 #define RESPONSE_GET_RECONNECT_HOLD(value) (value & 0xffff)
116
117 struct sbp2_login_response {
118 u32 length_login_ID;
119 u32 command_block_agent_hi;
120 u32 command_block_agent_lo;
121 u32 reconnect_hold;
122 };
123
124 #define ORB_SET_LOGIN_ID(value) (value & 0xffff)
125
126 struct sbp2_reconnect_orb {
127 u32 reserved1;
128 u32 reserved2;
129 u32 reserved3;
130 u32 reserved4;
131 u32 login_ID_misc;
132 u32 reserved5;
133 u32 status_FIFO_hi;
134 u32 status_FIFO_lo;
135 };
136
137 struct sbp2_logout_orb {
138 u32 reserved1;
139 u32 reserved2;
140 u32 reserved3;
141 u32 reserved4;
142 u32 login_ID_misc;
143 u32 reserved5;
144 u32 status_FIFO_hi;
145 u32 status_FIFO_lo;
146 };
147
148 #define PAGE_TABLE_SET_SEGMENT_BASE_HI(value) (value & 0xffff)
149 #define PAGE_TABLE_SET_SEGMENT_LENGTH(value) ((value & 0xffff) << 16)
150
151 struct sbp2_unrestricted_page_table {
152 u32 length_segment_base_hi;
153 u32 segment_base_lo;
154 };
155
156 #define RESP_STATUS_REQUEST_COMPLETE 0x0
157 #define RESP_STATUS_TRANSPORT_FAILURE 0x1
158 #define RESP_STATUS_ILLEGAL_REQUEST 0x2
159 #define RESP_STATUS_VENDOR_DEPENDENT 0x3
160
161 #define SBP2_STATUS_NO_ADDITIONAL_INFO 0x0
162 #define SBP2_STATUS_REQ_TYPE_NOT_SUPPORTED 0x1
163 #define SBP2_STATUS_SPEED_NOT_SUPPORTED 0x2
164 #define SBP2_STATUS_PAGE_SIZE_NOT_SUPPORTED 0x3
165 #define SBP2_STATUS_ACCESS_DENIED 0x4
166 #define SBP2_STATUS_LU_NOT_SUPPORTED 0x5
167 #define SBP2_STATUS_MAX_PAYLOAD_TOO_SMALL 0x6
168 #define SBP2_STATUS_RESOURCES_UNAVAILABLE 0x8
169 #define SBP2_STATUS_FUNCTION_REJECTED 0x9
170 #define SBP2_STATUS_LOGIN_ID_NOT_RECOGNIZED 0xa
171 #define SBP2_STATUS_DUMMY_ORB_COMPLETED 0xb
172 #define SBP2_STATUS_REQUEST_ABORTED 0xc
173 #define SBP2_STATUS_UNSPECIFIED_ERROR 0xff
174
175 #define SFMT_CURRENT_ERROR 0x0
176 #define SFMT_DEFERRED_ERROR 0x1
177 #define SFMT_VENDOR_DEPENDENT_STATUS 0x3
178
179 #define SBP2_SCSI_STATUS_GOOD 0x0
180 #define SBP2_SCSI_STATUS_CHECK_CONDITION 0x2
181 #define SBP2_SCSI_STATUS_CONDITION_MET 0x4
182 #define SBP2_SCSI_STATUS_BUSY 0x8
183 #define SBP2_SCSI_STATUS_RESERVATION_CONFLICT 0x18
184 #define SBP2_SCSI_STATUS_COMMAND_TERMINATED 0x22
185
186 #define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff
187
188 #define STATUS_GET_ORB_OFFSET_HI(value) (value & 0xffff)
189 #define STATUS_GET_SBP_STATUS(value) ((value >> 16) & 0xff)
190 #define STATUS_GET_LENGTH(value) ((value >> 24) & 0x7)
191 #define STATUS_GET_DEAD_BIT(value) ((value >> 27) & 0x1)
192 #define STATUS_GET_RESP(value) ((value >> 28) & 0x3)
193 #define STATUS_GET_SRC(value) ((value >> 30) & 0x3)
194
195 struct sbp2_status_block {
196 u32 ORB_offset_hi_misc;
197 u32 ORB_offset_lo;
198 u8 command_set_dependent[24];
199 };
200
201 /*
202 * Miscellaneous SBP2 related config rom defines
203 */
204
205 #define SBP2_STATUS_FIFO_ADDRESS 0xfffe00000000ULL /* for write posting! */
206 #define SBP2_STATUS_FIFO_ADDRESS_HI 0xfffe
207 #define SBP2_STATUS_FIFO_ADDRESS_LO 0x0
208
209 #define SBP2_UNIT_DIRECTORY_OFFSET_KEY 0xd1
210 #define SBP2_CSR_OFFSET_KEY 0x54
211 #define SBP2_UNIT_SPEC_ID_KEY 0x12
212 #define SBP2_UNIT_SW_VERSION_KEY 0x13
213 #define SBP2_COMMAND_SET_SPEC_ID_KEY 0x38
214 #define SBP2_COMMAND_SET_KEY 0x39
215 #define SBP2_UNIT_CHARACTERISTICS_KEY 0x3a
216 #define SBP2_DEVICE_TYPE_AND_LUN_KEY 0x14
217 #define SBP2_FIRMWARE_REVISION_KEY 0x3c
218
219 #define SBP2_AGENT_STATE_OFFSET 0x00ULL
220 #define SBP2_AGENT_RESET_OFFSET 0x04ULL
221 #define SBP2_ORB_POINTER_OFFSET 0x08ULL
222 #define SBP2_DOORBELL_OFFSET 0x10ULL
223 #define SBP2_UNSOLICITED_STATUS_ENABLE_OFFSET 0x14ULL
224 #define SBP2_UNSOLICITED_STATUS_VALUE 0xf
225
226 #define SBP2_BUSY_TIMEOUT_ADDRESS 0xfffff0000210ULL
227 #define SBP2_BUSY_TIMEOUT_VALUE 0xf
228
229 #define SBP2_AGENT_RESET_DATA 0xf
230
231 /*
232 * Unit spec id and sw version entry for SBP-2 devices
233 */
234
235 #define SBP2_UNIT_SPEC_ID_ENTRY 0x1200609e
236 #define SBP2_SW_VERSION_ENTRY 0x13010483
237
238 /*
239 * Miscellaneous general config rom related defines
240 */
241
242 #define CONFIG_ROM_INITIAL_MEMORY_SPACE 0xfffff0000000ULL
243
244 #define CONFIG_ROM_BASE_ADDRESS 0xfffff0000400ULL
245 #define CONFIG_ROM_ROOT_DIR_BASE 0xfffff0000414ULL
246 #define CONFIG_ROM_SIGNATURE_ADDRESS 0xfffff0000404ULL
247 #define CONFIG_ROM_UNIT_DIRECTORY_OFFSET 0xfffff0000424ULL
248
249 #define IEEE1394_CONFIG_ROM_SIGNATURE 0x31333934
250
251 #define SBP2_128KB_BROKEN_FIRMWARE 0xa0b800
252 #define SBP2_BROKEN_FIRMWARE_MAX_TRANSFER 0x20000
253
254 /*
255 * Flags for SBP-2 functions
256 */
257 #define SBP2_SEND_NO_WAIT 0x00000001
258
259 /*
260 * SCSI specific stuff
261 */
262
263 #define SBP2_MAX_SG_ELEMENTS SG_ALL
264 #define SBP2_CLUSTERING ENABLE_CLUSTERING
265 #define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000
266 #define SBP2SCSI_MAX_SCSI_IDS 8
267 #define SBP2SCSI_MAX_OUTSTANDING_CMDS 8 /* Max total outstanding sbp2 commands allowed at a time! */
268 #define SBP2SCSI_MAX_CMDS_PER_LUN 4 /* Max outstanding sbp2 commands per device - tune as needed */
269
270 #ifndef TYPE_SDAD
271 #define TYPE_SDAD 0x0e /* simplified direct access device */
272 #endif
273
274 /*
275 * SCSI direction table... since the scsi stack doesn't specify direction... =(
276 *
277 * DIN = IN data direction
278 * DOU = OUT data direction
279 * DNO = No data transfer
280 * DUN = Unknown data direction
281 */
282 #define DIN ORB_DIRECTION_READ_FROM_MEDIA
283 #define DOU ORB_DIRECTION_WRITE_TO_MEDIA
284 #define DNO ORB_DIRECTION_NO_DATA_TRANSFER
285 #define DUN DIN
286
287 static unchar sbp2scsi_direction_table[0x100] = {
288 DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
289 DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
290 DIN,DUN,DIN,DIN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
291 DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
292 DOU,DOU,DIN,DIN,DIN,DNO,DIN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DNO,DUN,
293 DUN,DIN,DIN,DNO,DOU,DOU,DUN,DUN,DNO,DIN,DIN,DNO,DIN,DOU,DUN,DUN,
294 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
295 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
296 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
297 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
298 DUN,DNO,DOU,DOU,DIN,DNO,DNO,DNO,DIN,DNO,DOU,DUN,DNO,DIN,DOU,DOU,
299 DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DIN,DNO,DNO,DNO,DIN,DIN,DUN,
300 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
301 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
302 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
303 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
304 };
305
306
307 /*
308 * Number of request packets available for actual sbp2 I/O requests (these are used
309 * for sending command and agent reset packets).
310 */
311 #define SBP2_MAX_REQUEST_PACKETS SBP2SCSI_MAX_OUTSTANDING_CMDS /* Per host adapter instance */
312 #define SBP2_MAX_COMMAND_ORBS SBP2SCSI_MAX_CMDS_PER_LUN * 2 /* Per sbp2 device instance */
313
314 /*
315 * Request packets structure (used for sending command and agent reset packets)
316 */
317 struct sbp2_request_packet {
318
319 struct list_head list;
320 struct hpsb_packet *packet;
321 struct tq_struct tq;
322 void *hi_context;
323
324 };
325
326 /*
327 * Encapsulates all the info necessary for an outstanding command.
328 */
329 struct sbp2_command_info {
330
331 struct list_head list;
332 struct sbp2_command_orb command_orb;
333 dma_addr_t command_orb_dma;
334 Scsi_Cmnd *Current_SCpnt;
335 void (*Current_done)(Scsi_Cmnd *);
336 unsigned int linked;
337
338 /* Also need s/g structure for each sbp2 command */
339 struct sbp2_unrestricted_page_table scatter_gather_element[SBP2_MAX_SG_ELEMENTS];
340 dma_addr_t sge_dma;
341 void *sge_buffer;
342 dma_addr_t cmd_dma;
343 int dma_type;
344 unsigned long dma_size;
345 int dma_dir;
346
347 };
348
349 /*
350 * Information needed on a per scsi id basis (one for each sbp2 device)
351 */
352 struct scsi_id_instance_data {
353
354 /*
355 * Various sbp2 specific structures
356 */
357 struct sbp2_command_orb *last_orb;
358 struct sbp2_login_orb *login_orb;
359 dma_addr_t login_orb_dma;
360 struct sbp2_login_response *login_response;
361 dma_addr_t login_response_dma;
362 struct sbp2_reconnect_orb *reconnect_orb;
363 dma_addr_t reconnect_orb_dma;
364 struct sbp2_logout_orb *logout_orb;
365 dma_addr_t logout_orb_dma;
366 struct sbp2_status_block status_block;
367
368 /*
369 * Stuff we need to know about the sbp2 device itself
370 */
371 u64 node_unique_id;
372 u64 sbp2_management_agent_addr;
373 u64 sbp2_command_block_agent_addr;
374 u32 node_id;
375 u32 speed_code;
376 u32 max_payload_size;
377
378 /*
379 * Values pulled from the device's unit directory
380 */
381 u32 sbp2_unit_spec_id;
382 u32 sbp2_unit_sw_version;
383 u32 sbp2_command_set_spec_id;
384 u32 sbp2_command_set;
385 u32 sbp2_unit_characteristics;
386 u32 sbp2_device_type_and_lun;
387 u32 sbp2_firmware_revision;
388
389 /*
390 * Wait queue used for logins, reconnects, logouts
391 */
392 wait_queue_head_t sbp2_login_wait;
393
394 /*
395 * Flag noting whether the sbp2 device is currently validated (for use during
396 * bus resets).
397 */
398 u32 validated;
399
400 /*
401 * Pool of command orbs, so we can have more than overlapped command per id
402 */
403 spinlock_t sbp2_command_orb_lock;
404 struct list_head sbp2_command_orb_inuse;
405 struct list_head sbp2_command_orb_completed;
406 u32 sbp2_total_command_orbs;
407
408 };
409
410 /*
411 * Sbp2 host data structure (one per sbp2 host)
412 */
413 struct sbp2scsi_host_info {
414
415 /*
416 * For use in keeping track of hosts
417 */
418 struct list_head list;
419 struct hpsb_host *host;
420
421 /*
422 * Spin locks for command processing and packet pool management
423 */
424 spinlock_t sbp2_command_lock;
425 spinlock_t sbp2_request_packet_lock;
426
427 /*
428 * Flag indicating if a bus reset (or device detection) is in progress
429 */
430 u32 bus_reset_in_progress;
431
432 /*
433 * We currently use a kernel thread for dealing with bus resets and sbp2
434 * device detection. We use this to wake up the thread when needed.
435 */
436 wait_queue_head_t sbp2_detection_wait;
437
438 /*
439 * PID of sbp2 detection kernel thread
440 */
441 int sbp2_detection_pid;
442
443 /*
444 * Lists keeping track of inuse/free sbp2_request_packets. These structures are
445 * used for sending out sbp2 command and agent reset packets. We initially create
446 * a pool of request packets so that we don't have to do any kmallocs while in critical
447 * I/O paths.
448 */
449 struct list_head sbp2_req_inuse;
450 struct list_head sbp2_req_free;
451
452 /*
453 * Stuff to keep track of the initial scsi bus scan (so that we don't miss it)
454 */
455 u32 initial_scsi_bus_scan_complete;
456 Scsi_Cmnd *bus_scan_SCpnt;
457 void (*bus_scan_done)(Scsi_Cmnd *);
458
459 /*
460 * Here is the pool of request packets. All the hpsb packets (for 1394 bus transactions)
461 * are allocated at init and simply re-initialized when needed.
462 */
463 struct sbp2_request_packet request_packet[SBP2_MAX_REQUEST_PACKETS];
464
465 /*
466 * SCSI ID instance data (one for each sbp2 device instance possible)
467 */
468 struct scsi_id_instance_data *scsi_id[SBP2SCSI_MAX_SCSI_IDS];
469
470 };
471
472 /*
473 * Function prototypes
474 */
475
476 /*
477 * Various utility prototypes
478 */
479 static int sbp2util_read_quadlet(struct sbp2scsi_host_info *hi, nodeid_t node, u64 addr,
480 quadlet_t *buffer);
481 static int sbp2util_unit_directory(struct sbp2scsi_host_info *hi, nodeid_t node, u64 *addr);
482 static int sbp2util_create_request_packet_pool(struct sbp2scsi_host_info *hi);
483 static void sbp2util_remove_request_packet_pool(struct sbp2scsi_host_info *hi);
484 static struct sbp2_request_packet *sbp2util_allocate_write_request_packet(struct sbp2scsi_host_info *hi,
485 nodeid_t node, u64 addr,
486 size_t data_size,
487 quadlet_t data);
488 static void sbp2util_free_request_packet(struct sbp2_request_packet *request_packet);
489 static int sbp2util_create_command_orb_pool(struct scsi_id_instance_data *scsi_id, struct sbp2scsi_host_info *hi);
490 static void sbp2util_remove_command_orb_pool(struct scsi_id_instance_data *scsi_id, struct sbp2scsi_host_info *hi);
491 static struct sbp2_command_info *sbp2util_find_command_for_orb(struct scsi_id_instance_data *scsi_id, dma_addr_t orb);
492 static struct sbp2_command_info *sbp2util_find_command_for_SCpnt(struct scsi_id_instance_data *scsi_id, void *SCpnt);
493 static struct sbp2_command_info *sbp2util_allocate_command_orb(struct scsi_id_instance_data *scsi_id,
494 Scsi_Cmnd *Current_SCpnt,
495 void (*Current_done)(Scsi_Cmnd *),
496 struct sbp2scsi_host_info *hi);
497 static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id,
498 struct sbp2_command_info *command);
499
500 /*
501 * IEEE-1394 core driver related prototypes
502 */
503 static void sbp2_remove_unvalidated_devices(struct sbp2scsi_host_info *hi);
504 static int sbp2_start_device(struct sbp2scsi_host_info *hi, int node_id);
505 static int sbp2_check_device(struct sbp2scsi_host_info *hi, int node_id);
506 static void sbp2_bus_reset_handler(void *context);
507 static void sbp2_add_host(struct hpsb_host *host);
508 static struct sbp2scsi_host_info *sbp2_find_host_info(struct hpsb_host *host);
509 static void sbp2_remove_host(struct hpsb_host *host);
510 static void sbp2_host_reset(struct hpsb_host *host);
511 static int sbp2_detection_thread(void *__sbp2);
512 int sbp2_init(void);
513 void sbp2_cleanup(void);
514 #if 0
515 static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, quadlet_t *data,
516 u64 addr, unsigned int length);
517 static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
518 u64 addr, unsigned int length);
519 #endif
520 /*
521 * SBP-2 protocol related prototypes
522 */
523 static int sbp2_login_device(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
524 static int sbp2_reconnect_device(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
525 static int sbp2_logout_device(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
526 static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
527 quadlet_t *data, u64 addr, unsigned int length);
528 static int sbp2_agent_reset(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id, u32 flags);
529 static int sbp2_create_command_orb(struct sbp2scsi_host_info *hi,
530 struct scsi_id_instance_data *scsi_id,
531 struct sbp2_command_info *command,
532 unchar *scsi_cmd,
533 unsigned int scsi_use_sg,
534 unsigned int scsi_request_bufflen,
535 void *scsi_request_buffer, int dma_dir);
536 static int sbp2_link_orb_command(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
537 struct sbp2_command_info *command);
538 static int sbp2_send_command(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
539 Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *));
540 static int sbp2_send_split_command(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
541 Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *));
542 static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense_data);
543 static void sbp2_check_sbp2_command(unchar *cmd);
544 static void sbp2_check_sbp2_response(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
545 Scsi_Cmnd *SCpnt);
546 static int sbp2_parse_unit_directory(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
547 static int sbp2_set_busy_timeout(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
548 static int sbp2_max_speed_and_size(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id);
549
550 /*
551 * Scsi interface related prototypes
552 */
553 static const char *sbp2scsi_info (struct Scsi_Host *host);
554 static int sbp2scsi_detect (Scsi_Host_Template *tpnt);
555 void sbp2scsi_setup(char *str, int *ints);
556 static int sbp2scsi_biosparam (Scsi_Disk *disk, kdev_t dev, int geom[]);
557 static int sbp2scsi_abort (Scsi_Cmnd *SCpnt);
558 static int sbp2scsi_reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags);
559 static int sbp2scsi_queuecommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *));
560 static void sbp2scsi_complete_all_commands(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
561 u32 status);
562 static void sbp2scsi_complete_command(struct sbp2scsi_host_info *hi, struct scsi_id_instance_data *scsi_id,
563 u32 scsi_status, Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *));
564 static void sbp2scsi_register_scsi_host(struct sbp2scsi_host_info *hi);
565
566 #endif /* SBP2_H */
567