Commit | Line | Data |
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1da177e4 LT |
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 | ||
27 | /* | |
28 | * SBP2 specific structures and defines | |
29 | */ | |
30 | ||
424a9642 SR |
31 | #define ORB_DIRECTION_WRITE_TO_MEDIA 0x0 |
32 | #define ORB_DIRECTION_READ_FROM_MEDIA 0x1 | |
33 | #define ORB_DIRECTION_NO_DATA_TRANSFER 0x2 | |
34 | ||
35 | #define ORB_SET_NULL_PTR(v) (((v) & 0x1) << 31) | |
36 | #define ORB_SET_NOTIFY(v) (((v) & 0x1) << 31) | |
37 | #define ORB_SET_RQ_FMT(v) (((v) & 0x3) << 29) | |
38 | #define ORB_SET_NODE_ID(v) (((v) & 0xffff) << 16) | |
39 | #define ORB_SET_STATUS_FIFO_HI(v, id) ((v) >> 32 | ORB_SET_NODE_ID(id)) | |
40 | #define ORB_SET_STATUS_FIFO_LO(v) ((v) & 0xffffffff) | |
41 | #define ORB_SET_DATA_SIZE(v) ((v) & 0xffff) | |
42 | #define ORB_SET_PAGE_SIZE(v) (((v) & 0x7) << 16) | |
43 | #define ORB_SET_PAGE_TABLE_PRESENT(v) (((v) & 0x1) << 19) | |
44 | #define ORB_SET_MAX_PAYLOAD(v) (((v) & 0xf) << 20) | |
45 | #define ORB_SET_SPEED(v) (((v) & 0x7) << 24) | |
46 | #define ORB_SET_DIRECTION(v) (((v) & 0x1) << 27) | |
1da177e4 LT |
47 | |
48 | struct sbp2_command_orb { | |
cc078189 SR |
49 | u32 next_ORB_hi; |
50 | u32 next_ORB_lo; | |
1da177e4 LT |
51 | u32 data_descriptor_hi; |
52 | u32 data_descriptor_lo; | |
53 | u32 misc; | |
54 | u8 cdb[12]; | |
05db5055 | 55 | } __attribute__((packed)); |
1da177e4 LT |
56 | |
57 | #define SBP2_LOGIN_REQUEST 0x0 | |
58 | #define SBP2_QUERY_LOGINS_REQUEST 0x1 | |
59 | #define SBP2_RECONNECT_REQUEST 0x3 | |
60 | #define SBP2_SET_PASSWORD_REQUEST 0x4 | |
61 | #define SBP2_LOGOUT_REQUEST 0x7 | |
62 | #define SBP2_ABORT_TASK_REQUEST 0xb | |
63 | #define SBP2_ABORT_TASK_SET 0xc | |
64 | #define SBP2_LOGICAL_UNIT_RESET 0xe | |
65 | #define SBP2_TARGET_RESET_REQUEST 0xf | |
66 | ||
424a9642 SR |
67 | #define ORB_SET_LUN(v) ((v) & 0xffff) |
68 | #define ORB_SET_FUNCTION(v) (((v) & 0xf) << 16) | |
69 | #define ORB_SET_RECONNECT(v) (((v) & 0xf) << 20) | |
70 | #define ORB_SET_EXCLUSIVE(v) (((v) & 0x1) << 28) | |
71 | #define ORB_SET_LOGIN_RESP_LENGTH(v) ((v) & 0xffff) | |
72 | #define ORB_SET_PASSWD_LENGTH(v) (((v) & 0xffff) << 16) | |
1da177e4 LT |
73 | |
74 | struct sbp2_login_orb { | |
75 | u32 password_hi; | |
76 | u32 password_lo; | |
77 | u32 login_response_hi; | |
78 | u32 login_response_lo; | |
79 | u32 lun_misc; | |
80 | u32 passwd_resp_lengths; | |
35bdddb8 SR |
81 | u32 status_fifo_hi; |
82 | u32 status_fifo_lo; | |
05db5055 | 83 | } __attribute__((packed)); |
1da177e4 | 84 | |
424a9642 SR |
85 | #define RESPONSE_GET_LOGIN_ID(v) ((v) & 0xffff) |
86 | #define RESPONSE_GET_LENGTH(v) (((v) >> 16) & 0xffff) | |
87 | #define RESPONSE_GET_RECONNECT_HOLD(v) ((v) & 0xffff) | |
1da177e4 LT |
88 | |
89 | struct sbp2_login_response { | |
90 | u32 length_login_ID; | |
91 | u32 command_block_agent_hi; | |
92 | u32 command_block_agent_lo; | |
93 | u32 reconnect_hold; | |
05db5055 | 94 | } __attribute__((packed)); |
1da177e4 | 95 | |
424a9642 SR |
96 | #define ORB_SET_LOGIN_ID(v) ((v) & 0xffff) |
97 | #define ORB_SET_QUERY_LOGINS_RESP_LENGTH(v) ((v) & 0xffff) | |
1da177e4 LT |
98 | |
99 | struct sbp2_query_logins_orb { | |
100 | u32 reserved1; | |
101 | u32 reserved2; | |
102 | u32 query_response_hi; | |
103 | u32 query_response_lo; | |
104 | u32 lun_misc; | |
105 | u32 reserved_resp_length; | |
35bdddb8 SR |
106 | u32 status_fifo_hi; |
107 | u32 status_fifo_lo; | |
05db5055 | 108 | } __attribute__((packed)); |
1da177e4 | 109 | |
424a9642 SR |
110 | #define RESPONSE_GET_MAX_LOGINS(v) ((v) & 0xffff) |
111 | #define RESPONSE_GET_ACTIVE_LOGINS(v) ((RESPONSE_GET_LENGTH((v)) - 4) / 12) | |
1da177e4 LT |
112 | |
113 | struct sbp2_query_logins_response { | |
114 | u32 length_max_logins; | |
115 | u32 misc_IDs; | |
116 | u32 initiator_misc_hi; | |
117 | u32 initiator_misc_lo; | |
05db5055 | 118 | } __attribute__((packed)); |
1da177e4 LT |
119 | |
120 | struct sbp2_reconnect_orb { | |
121 | u32 reserved1; | |
122 | u32 reserved2; | |
a237f35f SR |
123 | u32 reserved3; |
124 | u32 reserved4; | |
1da177e4 LT |
125 | u32 login_ID_misc; |
126 | u32 reserved5; | |
35bdddb8 SR |
127 | u32 status_fifo_hi; |
128 | u32 status_fifo_lo; | |
05db5055 | 129 | } __attribute__((packed)); |
1da177e4 LT |
130 | |
131 | struct sbp2_logout_orb { | |
132 | u32 reserved1; | |
133 | u32 reserved2; | |
a237f35f SR |
134 | u32 reserved3; |
135 | u32 reserved4; | |
1da177e4 LT |
136 | u32 login_ID_misc; |
137 | u32 reserved5; | |
35bdddb8 SR |
138 | u32 status_fifo_hi; |
139 | u32 status_fifo_lo; | |
05db5055 | 140 | } __attribute__((packed)); |
1da177e4 | 141 | |
424a9642 SR |
142 | #define PAGE_TABLE_SET_SEGMENT_BASE_HI(v) ((v) & 0xffff) |
143 | #define PAGE_TABLE_SET_SEGMENT_LENGTH(v) (((v) & 0xffff) << 16) | |
1da177e4 LT |
144 | |
145 | struct sbp2_unrestricted_page_table { | |
146 | u32 length_segment_base_hi; | |
147 | u32 segment_base_lo; | |
05db5055 | 148 | } __attribute__((packed)); |
1da177e4 LT |
149 | |
150 | #define RESP_STATUS_REQUEST_COMPLETE 0x0 | |
151 | #define RESP_STATUS_TRANSPORT_FAILURE 0x1 | |
152 | #define RESP_STATUS_ILLEGAL_REQUEST 0x2 | |
153 | #define RESP_STATUS_VENDOR_DEPENDENT 0x3 | |
154 | ||
155 | #define SBP2_STATUS_NO_ADDITIONAL_INFO 0x0 | |
156 | #define SBP2_STATUS_REQ_TYPE_NOT_SUPPORTED 0x1 | |
157 | #define SBP2_STATUS_SPEED_NOT_SUPPORTED 0x2 | |
158 | #define SBP2_STATUS_PAGE_SIZE_NOT_SUPPORTED 0x3 | |
159 | #define SBP2_STATUS_ACCESS_DENIED 0x4 | |
160 | #define SBP2_STATUS_LU_NOT_SUPPORTED 0x5 | |
161 | #define SBP2_STATUS_MAX_PAYLOAD_TOO_SMALL 0x6 | |
162 | #define SBP2_STATUS_RESOURCES_UNAVAILABLE 0x8 | |
163 | #define SBP2_STATUS_FUNCTION_REJECTED 0x9 | |
164 | #define SBP2_STATUS_LOGIN_ID_NOT_RECOGNIZED 0xa | |
165 | #define SBP2_STATUS_DUMMY_ORB_COMPLETED 0xb | |
166 | #define SBP2_STATUS_REQUEST_ABORTED 0xc | |
167 | #define SBP2_STATUS_UNSPECIFIED_ERROR 0xff | |
168 | ||
169 | #define SFMT_CURRENT_ERROR 0x0 | |
170 | #define SFMT_DEFERRED_ERROR 0x1 | |
171 | #define SFMT_VENDOR_DEPENDENT_STATUS 0x3 | |
172 | ||
424a9642 SR |
173 | #define STATUS_GET_SRC(v) (((v) >> 30) & 0x3) |
174 | #define STATUS_GET_RESP(v) (((v) >> 28) & 0x3) | |
175 | #define STATUS_GET_LEN(v) (((v) >> 24) & 0x7) | |
176 | #define STATUS_GET_SBP_STATUS(v) (((v) >> 16) & 0xff) | |
177 | #define STATUS_GET_ORB_OFFSET_HI(v) ((v) & 0x0000ffff) | |
178 | #define STATUS_TEST_DEAD(v) ((v) & 0x08000000) | |
6065772d | 179 | /* test 'resp' | 'dead' | 'sbp2_status' */ |
424a9642 | 180 | #define STATUS_TEST_RDS(v) ((v) & 0x38ff0000) |
1da177e4 LT |
181 | |
182 | struct sbp2_status_block { | |
183 | u32 ORB_offset_hi_misc; | |
184 | u32 ORB_offset_lo; | |
a237f35f | 185 | u8 command_set_dependent[24]; |
05db5055 | 186 | } __attribute__((packed)); |
1da177e4 LT |
187 | |
188 | /* | |
189 | * Miscellaneous SBP2 related config rom defines | |
190 | */ | |
191 | ||
424a9642 SR |
192 | #define SBP2_UNIT_DIRECTORY_OFFSET_KEY 0xd1 |
193 | #define SBP2_CSR_OFFSET_KEY 0x54 | |
194 | #define SBP2_UNIT_SPEC_ID_KEY 0x12 | |
195 | #define SBP2_UNIT_SW_VERSION_KEY 0x13 | |
196 | #define SBP2_COMMAND_SET_SPEC_ID_KEY 0x38 | |
197 | #define SBP2_COMMAND_SET_KEY 0x39 | |
198 | #define SBP2_UNIT_CHARACTERISTICS_KEY 0x3a | |
199 | #define SBP2_DEVICE_TYPE_AND_LUN_KEY 0x14 | |
200 | #define SBP2_FIRMWARE_REVISION_KEY 0x3c | |
1da177e4 | 201 | |
424a9642 SR |
202 | #define SBP2_AGENT_STATE_OFFSET 0x00ULL |
203 | #define SBP2_AGENT_RESET_OFFSET 0x04ULL | |
204 | #define SBP2_ORB_POINTER_OFFSET 0x08ULL | |
205 | #define SBP2_DOORBELL_OFFSET 0x10ULL | |
206 | #define SBP2_UNSOLICITED_STATUS_ENABLE_OFFSET 0x14ULL | |
207 | #define SBP2_UNSOLICITED_STATUS_VALUE 0xf | |
1da177e4 | 208 | |
424a9642 SR |
209 | #define SBP2_BUSY_TIMEOUT_ADDRESS 0xfffff0000210ULL |
210 | #define SBP2_BUSY_TIMEOUT_VALUE 0xf | |
1da177e4 | 211 | |
424a9642 | 212 | #define SBP2_AGENT_RESET_DATA 0xf |
1da177e4 LT |
213 | |
214 | /* | |
215 | * Unit spec id and sw version entry for SBP-2 devices | |
216 | */ | |
217 | ||
424a9642 SR |
218 | #define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e |
219 | #define SBP2_SW_VERSION_ENTRY 0x00010483 | |
1da177e4 | 220 | |
1da177e4 LT |
221 | /* |
222 | * SCSI specific stuff | |
223 | */ | |
224 | ||
424a9642 SR |
225 | #define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000 |
226 | #define SBP2_MAX_SECTORS 255 | |
227 | /* There is no real limitation of the queue depth (i.e. length of the linked | |
228 | * list of command ORBs) at the target. The chosen depth is merely an | |
229 | * implementation detail of the sbp2 driver. */ | |
230 | #define SBP2_MAX_CMDS 8 | |
1da177e4 | 231 | |
424a9642 SR |
232 | #define SBP2_SCSI_STATUS_GOOD 0x0 |
233 | #define SBP2_SCSI_STATUS_CHECK_CONDITION 0x2 | |
234 | #define SBP2_SCSI_STATUS_CONDITION_MET 0x4 | |
235 | #define SBP2_SCSI_STATUS_BUSY 0x8 | |
236 | #define SBP2_SCSI_STATUS_RESERVATION_CONFLICT 0x18 | |
237 | #define SBP2_SCSI_STATUS_COMMAND_TERMINATED 0x22 | |
238 | #define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff | |
24d3bf88 | 239 | |
1da177e4 LT |
240 | /* This is the two dma types we use for cmd_dma below */ |
241 | enum cmd_dma_types { | |
242 | CMD_DMA_NONE, | |
243 | CMD_DMA_PAGE, | |
244 | CMD_DMA_SINGLE | |
245 | }; | |
246 | ||
247 | /* | |
248 | * Encapsulates all the info necessary for an outstanding command. | |
249 | */ | |
250 | struct sbp2_command_info { | |
251 | ||
252 | struct list_head list; | |
253 | struct sbp2_command_orb command_orb ____cacheline_aligned; | |
254 | dma_addr_t command_orb_dma ____cacheline_aligned; | |
255 | struct scsi_cmnd *Current_SCpnt; | |
256 | void (*Current_done)(struct scsi_cmnd *); | |
257 | ||
258 | /* Also need s/g structure for each sbp2 command */ | |
259 | struct sbp2_unrestricted_page_table scatter_gather_element[SG_ALL] ____cacheline_aligned; | |
260 | dma_addr_t sge_dma ____cacheline_aligned; | |
261 | void *sge_buffer; | |
262 | dma_addr_t cmd_dma; | |
263 | enum cmd_dma_types dma_type; | |
264 | unsigned long dma_size; | |
265 | int dma_dir; | |
266 | ||
267 | }; | |
268 | ||
1da177e4 LT |
269 | struct sbp2scsi_host_info; |
270 | ||
1da177e4 LT |
271 | /* |
272 | * Information needed on a per scsi id basis (one for each sbp2 device) | |
273 | */ | |
274 | struct scsi_id_instance_data { | |
275 | /* | |
276 | * Various sbp2 specific structures | |
277 | */ | |
278 | struct sbp2_command_orb *last_orb; | |
279 | dma_addr_t last_orb_dma; | |
280 | struct sbp2_login_orb *login_orb; | |
281 | dma_addr_t login_orb_dma; | |
282 | struct sbp2_login_response *login_response; | |
283 | dma_addr_t login_response_dma; | |
284 | struct sbp2_query_logins_orb *query_logins_orb; | |
285 | dma_addr_t query_logins_orb_dma; | |
286 | struct sbp2_query_logins_response *query_logins_response; | |
287 | dma_addr_t query_logins_response_dma; | |
288 | struct sbp2_reconnect_orb *reconnect_orb; | |
289 | dma_addr_t reconnect_orb_dma; | |
290 | struct sbp2_logout_orb *logout_orb; | |
291 | dma_addr_t logout_orb_dma; | |
292 | struct sbp2_status_block status_block; | |
293 | ||
294 | /* | |
295 | * Stuff we need to know about the sbp2 device itself | |
296 | */ | |
297 | u64 sbp2_management_agent_addr; | |
298 | u64 sbp2_command_block_agent_addr; | |
299 | u32 speed_code; | |
300 | u32 max_payload_size; | |
301 | ||
302 | /* | |
303 | * Values pulled from the device's unit directory | |
304 | */ | |
305 | u32 sbp2_command_set_spec_id; | |
306 | u32 sbp2_command_set; | |
307 | u32 sbp2_unit_characteristics; | |
e309fc6d | 308 | u32 sbp2_lun; |
1da177e4 LT |
309 | u32 sbp2_firmware_revision; |
310 | ||
35bdddb8 SR |
311 | /* |
312 | * Address for the device to write status blocks to | |
313 | */ | |
314 | u64 status_fifo_addr; | |
315 | ||
1da177e4 | 316 | /* |
e8398bb7 | 317 | * Waitqueue flag for logins, reconnects, logouts, query logins |
1da177e4 | 318 | */ |
e8398bb7 | 319 | int access_complete:1; |
1da177e4 LT |
320 | |
321 | /* | |
322 | * Pool of command orbs, so we can have more than overlapped command per id | |
323 | */ | |
324 | spinlock_t sbp2_command_orb_lock; | |
325 | struct list_head sbp2_command_orb_inuse; | |
326 | struct list_head sbp2_command_orb_completed; | |
327 | ||
328 | struct list_head scsi_list; | |
329 | ||
330 | /* Node entry, as retrieved from NodeMgr entries */ | |
331 | struct node_entry *ne; | |
332 | struct unit_directory *ud; | |
333 | ||
334 | /* A backlink to our host_info */ | |
335 | struct sbp2scsi_host_info *hi; | |
336 | ||
337 | /* SCSI related pointers */ | |
338 | struct scsi_device *sdev; | |
339 | struct Scsi_Host *scsi_host; | |
340 | ||
341 | /* Device specific workarounds/brokeness */ | |
24d3bf88 | 342 | unsigned workarounds; |
09ee67ab | 343 | |
2cccbb55 | 344 | atomic_t state; |
c4028958 | 345 | struct delayed_work protocol_work; |
1da177e4 LT |
346 | }; |
347 | ||
2cccbb55 SR |
348 | /* For use in scsi_id_instance_data.state */ |
349 | enum sbp2lu_state_types { | |
350 | SBP2LU_STATE_RUNNING, /* all normal */ | |
351 | SBP2LU_STATE_IN_RESET, /* between bus reset and reconnect */ | |
352 | SBP2LU_STATE_IN_SHUTDOWN /* when sbp2_remove was called */ | |
353 | }; | |
354 | ||
1da177e4 LT |
355 | /* Sbp2 host data structure (one per IEEE1394 host) */ |
356 | struct sbp2scsi_host_info { | |
357 | struct hpsb_host *host; /* IEEE1394 host */ | |
358 | struct list_head scsi_ids; /* List of scsi ids on this host */ | |
359 | }; | |
360 | ||
424a9642 SR |
361 | /* Flags for detected oddities and brokeness */ |
362 | #define SBP2_WORKAROUND_128K_MAX_TRANS 0x1 | |
363 | #define SBP2_WORKAROUND_INQUIRY_36 0x2 | |
364 | #define SBP2_WORKAROUND_MODE_SENSE_8 0x4 | |
365 | #define SBP2_WORKAROUND_FIX_CAPACITY 0x8 | |
366 | #define SBP2_WORKAROUND_OVERRIDE 0x100 | |
367 | ||
1da177e4 | 368 | #endif /* SBP2_H */ |