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1 | /* |
2 | * ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter | |
3 | * | |
4 | * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) IBM Corporation, 2008 | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #ifndef _IBMVFC_H | |
25 | #define _IBMVFC_H | |
26 | ||
27 | #include <linux/list.h> | |
28 | #include <linux/types.h> | |
29 | #include "viosrp.h" | |
30 | ||
31 | #define IBMVFC_NAME "ibmvfc" | |
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32 | #define IBMVFC_DRIVER_VERSION "1.0.2" |
33 | #define IBMVFC_DRIVER_DATE "(August 14, 2008)" | |
072b91f9 BK |
34 | |
35 | #define IBMVFC_DEFAULT_TIMEOUT 15 | |
36 | #define IBMVFC_INIT_TIMEOUT 30 | |
37 | #define IBMVFC_MAX_REQUESTS_DEFAULT 100 | |
38 | ||
39 | #define IBMVFC_DEBUG 0 | |
40 | #define IBMVFC_MAX_TARGETS 1024 | |
41 | #define IBMVFC_MAX_LUN 0xffffffff | |
42 | #define IBMVFC_MAX_SECTORS 0xffffu | |
43 | #define IBMVFC_MAX_DISC_THREADS 4 | |
44 | #define IBMVFC_TGT_MEMPOOL_SZ 64 | |
45 | #define IBMVFC_MAX_CMDS_PER_LUN 64 | |
46 | #define IBMVFC_MAX_INIT_RETRIES 3 | |
47 | #define IBMVFC_DEV_LOSS_TMO (5 * 60) | |
48 | #define IBMVFC_DEFAULT_LOG_LEVEL 2 | |
49 | #define IBMVFC_MAX_CDB_LEN 16 | |
50 | ||
51 | /* | |
52 | * Ensure we have resources for ERP and initialization: | |
53 | * 1 for ERP | |
54 | * 1 for initialization | |
55 | * 1 for each discovery thread | |
56 | */ | |
57 | #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + disc_threads) | |
58 | ||
59 | #define IBMVFC_MAD_SUCCESS 0x00 | |
60 | #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 | |
61 | #define IBMVFC_MAD_FAILED 0xF7 | |
62 | #define IBMVFC_MAD_DRIVER_FAILED 0xEE | |
63 | #define IBMVFC_MAD_CRQ_ERROR 0xEF | |
64 | ||
65 | enum ibmvfc_crq_valid { | |
66 | IBMVFC_CRQ_CMD_RSP = 0x80, | |
67 | IBMVFC_CRQ_INIT_RSP = 0xC0, | |
68 | IBMVFC_CRQ_XPORT_EVENT = 0xFF, | |
69 | }; | |
70 | ||
71 | enum ibmvfc_crq_format { | |
72 | IBMVFC_CRQ_INIT = 0x01, | |
73 | IBMVFC_CRQ_INIT_COMPLETE = 0x02, | |
74 | IBMVFC_PARTITION_MIGRATED = 0x06, | |
75 | }; | |
76 | ||
77 | enum ibmvfc_cmd_status_flags { | |
78 | IBMVFC_FABRIC_MAPPED = 0x0001, | |
79 | IBMVFC_VIOS_FAILURE = 0x0002, | |
80 | IBMVFC_FC_FAILURE = 0x0004, | |
81 | IBMVFC_FC_SCSI_ERROR = 0x0008, | |
82 | IBMVFC_HW_EVENT_LOGGED = 0x0010, | |
83 | IBMVFC_VIOS_LOGGED = 0x0020, | |
84 | }; | |
85 | ||
86 | enum ibmvfc_fabric_mapped_errors { | |
87 | IBMVFC_UNABLE_TO_ESTABLISH = 0x0001, | |
88 | IBMVFC_XPORT_FAULT = 0x0002, | |
89 | IBMVFC_CMD_TIMEOUT = 0x0003, | |
90 | IBMVFC_ENETDOWN = 0x0004, | |
91 | IBMVFC_HW_FAILURE = 0x0005, | |
92 | IBMVFC_LINK_DOWN_ERR = 0x0006, | |
93 | IBMVFC_LINK_DEAD_ERR = 0x0007, | |
94 | IBMVFC_UNABLE_TO_REGISTER = 0x0008, | |
95 | IBMVFC_XPORT_BUSY = 0x000A, | |
96 | IBMVFC_XPORT_DEAD = 0x000B, | |
97 | IBMVFC_CONFIG_ERROR = 0x000C, | |
98 | IBMVFC_NAME_SERVER_FAIL = 0x000D, | |
99 | IBMVFC_LINK_HALTED = 0x000E, | |
100 | IBMVFC_XPORT_GENERAL = 0x8000, | |
101 | }; | |
102 | ||
103 | enum ibmvfc_vios_errors { | |
104 | IBMVFC_CRQ_FAILURE = 0x0001, | |
105 | IBMVFC_SW_FAILURE = 0x0002, | |
106 | IBMVFC_INVALID_PARAMETER = 0x0003, | |
107 | IBMVFC_MISSING_PARAMETER = 0x0004, | |
108 | IBMVFC_HOST_IO_BUS = 0x0005, | |
109 | IBMVFC_TRANS_CANCELLED = 0x0006, | |
110 | IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, | |
111 | IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, | |
112 | IBMVFC_COMMAND_FAILED = 0x8000, | |
113 | }; | |
114 | ||
115 | enum ibmvfc_mad_types { | |
116 | IBMVFC_NPIV_LOGIN = 0x0001, | |
117 | IBMVFC_DISC_TARGETS = 0x0002, | |
118 | IBMVFC_PORT_LOGIN = 0x0004, | |
119 | IBMVFC_PROCESS_LOGIN = 0x0008, | |
120 | IBMVFC_QUERY_TARGET = 0x0010, | |
121 | IBMVFC_IMPLICIT_LOGOUT = 0x0040, | |
989b8545 | 122 | IBMVFC_PASSTHRU = 0x0200, |
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123 | IBMVFC_TMF_MAD = 0x0100, |
124 | }; | |
125 | ||
126 | struct ibmvfc_mad_common { | |
127 | u32 version; | |
128 | u32 reserved; | |
129 | u32 opcode; | |
130 | u16 status; | |
131 | u16 length; | |
132 | u64 tag; | |
133 | }__attribute__((packed, aligned (8))); | |
134 | ||
135 | struct ibmvfc_npiv_login_mad { | |
136 | struct ibmvfc_mad_common common; | |
137 | struct srp_direct_buf buffer; | |
138 | }__attribute__((packed, aligned (8))); | |
139 | ||
140 | #define IBMVFC_MAX_NAME 256 | |
141 | ||
142 | struct ibmvfc_npiv_login { | |
143 | u32 ostype; | |
144 | #define IBMVFC_OS_LINUX 0x02 | |
145 | u32 pad; | |
146 | u64 max_dma_len; | |
147 | u32 max_payload; | |
148 | u32 max_response; | |
149 | u32 partition_num; | |
150 | u32 vfc_frame_version; | |
151 | u16 fcp_version; | |
152 | u16 flags; | |
153 | #define IBMVFC_CLIENT_MIGRATED 0x01 | |
154 | #define IBMVFC_FLUSH_ON_HALT 0x02 | |
155 | u32 max_cmds; | |
156 | u64 capabilities; | |
157 | #define IBMVFC_CAN_MIGRATE 0x01 | |
158 | u64 node_name; | |
159 | struct srp_direct_buf async; | |
160 | u8 partition_name[IBMVFC_MAX_NAME]; | |
161 | u8 device_name[IBMVFC_MAX_NAME]; | |
162 | u8 drc_name[IBMVFC_MAX_NAME]; | |
163 | u64 reserved2[2]; | |
164 | }__attribute__((packed, aligned (8))); | |
165 | ||
166 | struct ibmvfc_common_svc_parms { | |
167 | u16 fcph_version; | |
168 | u16 b2b_credit; | |
169 | u16 features; | |
170 | u16 bb_rcv_sz; /* upper nibble is BB_SC_N */ | |
171 | u32 ratov; | |
172 | u32 edtov; | |
173 | }__attribute__((packed, aligned (4))); | |
174 | ||
175 | struct ibmvfc_service_parms { | |
176 | struct ibmvfc_common_svc_parms common; | |
177 | u8 port_name[8]; | |
178 | u8 node_name[8]; | |
179 | u32 class1_parms[4]; | |
180 | u32 class2_parms[4]; | |
181 | u32 class3_parms[4]; | |
182 | u32 obsolete[4]; | |
183 | u32 vendor_version[4]; | |
184 | u32 services_avail[2]; | |
185 | u32 ext_len; | |
186 | u32 reserved[30]; | |
187 | u32 clk_sync_qos[2]; | |
188 | }__attribute__((packed, aligned (4))); | |
189 | ||
190 | struct ibmvfc_npiv_login_resp { | |
191 | u32 version; | |
192 | u16 status; | |
193 | u16 error; | |
194 | u32 flags; | |
195 | #define IBMVFC_NATIVE_FC 0x01 | |
196 | #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 | |
197 | u32 reserved; | |
198 | u64 capabilites; | |
199 | u32 max_cmds; | |
200 | u32 scsi_id_sz; | |
201 | u64 max_dma_len; | |
202 | u64 scsi_id; | |
203 | u64 port_name; | |
204 | u64 node_name; | |
205 | u64 link_speed; | |
206 | u8 partition_name[IBMVFC_MAX_NAME]; | |
207 | u8 device_name[IBMVFC_MAX_NAME]; | |
208 | u8 port_loc_code[IBMVFC_MAX_NAME]; | |
209 | u8 drc_name[IBMVFC_MAX_NAME]; | |
210 | struct ibmvfc_service_parms service_parms; | |
211 | u64 reserved2; | |
212 | }__attribute__((packed, aligned (8))); | |
213 | ||
214 | union ibmvfc_npiv_login_data { | |
215 | struct ibmvfc_npiv_login login; | |
216 | struct ibmvfc_npiv_login_resp resp; | |
217 | }__attribute__((packed, aligned (8))); | |
218 | ||
219 | struct ibmvfc_discover_targets_buf { | |
220 | u32 scsi_id[1]; | |
221 | #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff | |
222 | }; | |
223 | ||
224 | struct ibmvfc_discover_targets { | |
225 | struct ibmvfc_mad_common common; | |
226 | struct srp_direct_buf buffer; | |
227 | u32 flags; | |
228 | u16 status; | |
229 | u16 error; | |
230 | u32 bufflen; | |
231 | u32 num_avail; | |
232 | u32 num_written; | |
233 | u64 reserved[2]; | |
234 | }__attribute__((packed, aligned (8))); | |
235 | ||
236 | enum ibmvfc_fc_reason { | |
237 | IBMVFC_INVALID_ELS_CMD_CODE = 0x01, | |
238 | IBMVFC_INVALID_VERSION = 0x02, | |
239 | IBMVFC_LOGICAL_ERROR = 0x03, | |
240 | IBMVFC_INVALID_CT_IU_SIZE = 0x04, | |
241 | IBMVFC_LOGICAL_BUSY = 0x05, | |
242 | IBMVFC_PROTOCOL_ERROR = 0x07, | |
243 | IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09, | |
244 | IBMVFC_CMD_NOT_SUPPORTED = 0x0B, | |
245 | IBMVFC_SERVER_NOT_AVAIL = 0x0D, | |
246 | IBMVFC_CMD_IN_PROGRESS = 0x0E, | |
247 | IBMVFC_VENDOR_SPECIFIC = 0xFF, | |
248 | }; | |
249 | ||
250 | enum ibmvfc_fc_type { | |
251 | IBMVFC_FABRIC_REJECT = 0x01, | |
252 | IBMVFC_PORT_REJECT = 0x02, | |
253 | IBMVFC_LS_REJECT = 0x03, | |
254 | IBMVFC_FABRIC_BUSY = 0x04, | |
255 | IBMVFC_PORT_BUSY = 0x05, | |
256 | IBMVFC_BASIC_REJECT = 0x06, | |
257 | }; | |
258 | ||
259 | enum ibmvfc_gs_explain { | |
260 | IBMVFC_PORT_NAME_NOT_REG = 0x02, | |
261 | }; | |
262 | ||
263 | struct ibmvfc_port_login { | |
264 | struct ibmvfc_mad_common common; | |
265 | u64 scsi_id; | |
266 | u16 reserved; | |
267 | u16 fc_service_class; | |
268 | u32 blksz; | |
269 | u32 hdr_per_blk; | |
270 | u16 status; | |
271 | u16 error; /* also fc_reason */ | |
272 | u16 fc_explain; | |
273 | u16 fc_type; | |
274 | u32 reserved2; | |
275 | struct ibmvfc_service_parms service_parms; | |
276 | struct ibmvfc_service_parms service_parms_change; | |
277 | u64 reserved3[2]; | |
278 | }__attribute__((packed, aligned (8))); | |
279 | ||
280 | struct ibmvfc_prli_svc_parms { | |
281 | u8 type; | |
282 | #define IBMVFC_SCSI_FCP_TYPE 0x08 | |
283 | u8 type_ext; | |
284 | u16 flags; | |
285 | #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 | |
286 | #define IBMVFC_PRLI_RESP_PA_VALID 0x4000 | |
287 | #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 | |
288 | u32 orig_pa; | |
289 | u32 resp_pa; | |
290 | u32 service_parms; | |
291 | #define IBMVFC_PRLI_TASK_RETRY 0x00000200 | |
292 | #define IBMVFC_PRLI_RETRY 0x00000100 | |
293 | #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040 | |
294 | #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020 | |
295 | #define IBMVFC_PRLI_TARGET_FUNC 0x00000010 | |
296 | #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 | |
297 | #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 | |
298 | }__attribute__((packed, aligned (4))); | |
299 | ||
300 | struct ibmvfc_process_login { | |
301 | struct ibmvfc_mad_common common; | |
302 | u64 scsi_id; | |
303 | struct ibmvfc_prli_svc_parms parms; | |
304 | u8 reserved[48]; | |
305 | u16 status; | |
306 | u16 error; /* also fc_reason */ | |
307 | u32 reserved2; | |
308 | u64 reserved3[2]; | |
309 | }__attribute__((packed, aligned (8))); | |
310 | ||
311 | struct ibmvfc_query_tgt { | |
312 | struct ibmvfc_mad_common common; | |
313 | u64 wwpn; | |
314 | u64 scsi_id; | |
315 | u16 status; | |
316 | u16 error; | |
317 | u16 fc_explain; | |
318 | u16 fc_type; | |
319 | u64 reserved[2]; | |
320 | }__attribute__((packed, aligned (8))); | |
321 | ||
322 | struct ibmvfc_implicit_logout { | |
323 | struct ibmvfc_mad_common common; | |
324 | u64 old_scsi_id; | |
325 | u64 reserved[2]; | |
326 | }__attribute__((packed, aligned (8))); | |
327 | ||
328 | struct ibmvfc_tmf { | |
329 | struct ibmvfc_mad_common common; | |
330 | u64 scsi_id; | |
331 | struct scsi_lun lun; | |
332 | u32 flags; | |
333 | #define IBMVFC_TMF_ABORT_TASK 0x02 | |
334 | #define IBMVFC_TMF_ABORT_TASK_SET 0x04 | |
335 | #define IBMVFC_TMF_LUN_RESET 0x10 | |
336 | #define IBMVFC_TMF_TGT_RESET 0x20 | |
337 | #define IBMVFC_TMF_LUA_VALID 0x40 | |
338 | u32 cancel_key; | |
339 | u32 my_cancel_key; | |
340 | #define IBMVFC_TMF_CANCEL_KEY 0x80000000 | |
341 | u32 pad; | |
342 | u64 reserved[2]; | |
343 | }__attribute__((packed, aligned (8))); | |
344 | ||
345 | enum ibmvfc_fcp_rsp_info_codes { | |
346 | RSP_NO_FAILURE = 0x00, | |
347 | RSP_TMF_REJECTED = 0x04, | |
348 | RSP_TMF_FAILED = 0x05, | |
349 | RSP_TMF_INVALID_LUN = 0x09, | |
350 | }; | |
351 | ||
352 | struct ibmvfc_fcp_rsp_info { | |
353 | u16 reserved; | |
354 | u8 rsp_code; | |
355 | u8 reserved2[4]; | |
356 | }__attribute__((packed, aligned (2))); | |
357 | ||
358 | enum ibmvfc_fcp_rsp_flags { | |
359 | FCP_BIDI_RSP = 0x80, | |
360 | FCP_BIDI_READ_RESID_UNDER = 0x40, | |
361 | FCP_BIDI_READ_RESID_OVER = 0x20, | |
362 | FCP_CONF_REQ = 0x10, | |
363 | FCP_RESID_UNDER = 0x08, | |
364 | FCP_RESID_OVER = 0x04, | |
365 | FCP_SNS_LEN_VALID = 0x02, | |
366 | FCP_RSP_LEN_VALID = 0x01, | |
367 | }; | |
368 | ||
369 | union ibmvfc_fcp_rsp_data { | |
370 | struct ibmvfc_fcp_rsp_info info; | |
371 | u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; | |
372 | }__attribute__((packed, aligned (8))); | |
373 | ||
374 | struct ibmvfc_fcp_rsp { | |
375 | u64 reserved; | |
376 | u16 retry_delay_timer; | |
377 | u8 flags; | |
378 | u8 scsi_status; | |
379 | u32 fcp_resid; | |
380 | u32 fcp_sense_len; | |
381 | u32 fcp_rsp_len; | |
382 | union ibmvfc_fcp_rsp_data data; | |
383 | }__attribute__((packed, aligned (8))); | |
384 | ||
385 | enum ibmvfc_cmd_flags { | |
386 | IBMVFC_SCATTERLIST = 0x0001, | |
387 | IBMVFC_NO_MEM_DESC = 0x0002, | |
388 | IBMVFC_READ = 0x0004, | |
389 | IBMVFC_WRITE = 0x0008, | |
390 | IBMVFC_TMF = 0x0080, | |
391 | IBMVFC_CLASS_3_ERR = 0x0100, | |
392 | }; | |
393 | ||
394 | enum ibmvfc_fc_task_attr { | |
395 | IBMVFC_SIMPLE_TASK = 0x00, | |
396 | IBMVFC_HEAD_OF_QUEUE = 0x01, | |
397 | IBMVFC_ORDERED_TASK = 0x02, | |
398 | IBMVFC_ACA_TASK = 0x04, | |
399 | }; | |
400 | ||
401 | enum ibmvfc_fc_tmf_flags { | |
402 | IBMVFC_ABORT_TASK_SET = 0x02, | |
403 | IBMVFC_LUN_RESET = 0x10, | |
404 | IBMVFC_TARGET_RESET = 0x20, | |
405 | }; | |
406 | ||
407 | struct ibmvfc_fcp_cmd_iu { | |
408 | struct scsi_lun lun; | |
409 | u8 crn; | |
410 | u8 pri_task_attr; | |
411 | u8 tmf_flags; | |
412 | u8 add_cdb_len; | |
413 | #define IBMVFC_RDDATA 0x02 | |
414 | #define IBMVFC_WRDATA 0x01 | |
415 | u8 cdb[IBMVFC_MAX_CDB_LEN]; | |
416 | u32 xfer_len; | |
417 | }__attribute__((packed, aligned (4))); | |
418 | ||
419 | struct ibmvfc_cmd { | |
420 | u64 task_tag; | |
421 | u32 frame_type; | |
422 | u32 payload_len; | |
423 | u32 resp_len; | |
424 | u32 adapter_resid; | |
425 | u16 status; | |
426 | u16 error; | |
427 | u16 flags; | |
428 | u16 response_flags; | |
429 | #define IBMVFC_ADAPTER_RESID_VALID 0x01 | |
430 | u32 cancel_key; | |
431 | u32 exchange_id; | |
432 | struct srp_direct_buf ext_func; | |
433 | struct srp_direct_buf ioba; | |
434 | struct srp_direct_buf resp; | |
435 | u64 correlation; | |
436 | u64 tgt_scsi_id; | |
437 | u64 tag; | |
438 | u64 reserved3[2]; | |
439 | struct ibmvfc_fcp_cmd_iu iu; | |
440 | struct ibmvfc_fcp_rsp rsp; | |
441 | }__attribute__((packed, aligned (8))); | |
442 | ||
989b8545 BK |
443 | struct ibmvfc_passthru_fc_iu { |
444 | u32 payload[7]; | |
445 | #define IBMVFC_ADISC 0x52000000 | |
446 | u32 response[7]; | |
447 | }; | |
448 | ||
449 | struct ibmvfc_passthru_iu { | |
450 | u64 task_tag; | |
451 | u32 cmd_len; | |
452 | u32 rsp_len; | |
453 | u16 status; | |
454 | u16 error; | |
455 | u32 flags; | |
456 | #define IBMVFC_FC_ELS 0x01 | |
457 | u32 cancel_key; | |
458 | u32 reserved; | |
459 | struct srp_direct_buf cmd; | |
460 | struct srp_direct_buf rsp; | |
461 | u64 correlation; | |
462 | u64 scsi_id; | |
463 | u64 tag; | |
464 | u64 reserved2[2]; | |
465 | }__attribute__((packed, aligned (8))); | |
466 | ||
467 | struct ibmvfc_passthru_mad { | |
468 | struct ibmvfc_mad_common common; | |
469 | struct srp_direct_buf cmd_ioba; | |
470 | struct ibmvfc_passthru_iu iu; | |
471 | struct ibmvfc_passthru_fc_iu fc_iu; | |
472 | }__attribute__((packed, aligned (8))); | |
473 | ||
072b91f9 BK |
474 | struct ibmvfc_trace_start_entry { |
475 | u32 xfer_len; | |
476 | }__attribute__((packed)); | |
477 | ||
478 | struct ibmvfc_trace_end_entry { | |
479 | u16 status; | |
480 | u16 error; | |
481 | u8 fcp_rsp_flags; | |
482 | u8 rsp_code; | |
483 | u8 scsi_status; | |
484 | u8 reserved; | |
485 | }__attribute__((packed)); | |
486 | ||
487 | struct ibmvfc_trace_entry { | |
488 | struct ibmvfc_event *evt; | |
489 | u32 time; | |
490 | u32 scsi_id; | |
491 | u32 lun; | |
492 | u8 fmt; | |
493 | u8 op_code; | |
494 | u8 tmf_flags; | |
495 | u8 type; | |
496 | #define IBMVFC_TRC_START 0x00 | |
497 | #define IBMVFC_TRC_END 0xff | |
498 | union { | |
499 | struct ibmvfc_trace_start_entry start; | |
500 | struct ibmvfc_trace_end_entry end; | |
501 | } u; | |
502 | }__attribute__((packed, aligned (8))); | |
503 | ||
504 | enum ibmvfc_crq_formats { | |
505 | IBMVFC_CMD_FORMAT = 0x01, | |
506 | IBMVFC_ASYNC_EVENT = 0x02, | |
507 | IBMVFC_MAD_FORMAT = 0x04, | |
508 | }; | |
509 | ||
510 | enum ibmvfc_async_event { | |
511 | IBMVFC_AE_ELS_PLOGI = 0x0001, | |
512 | IBMVFC_AE_ELS_LOGO = 0x0002, | |
513 | IBMVFC_AE_ELS_PRLO = 0x0004, | |
514 | IBMVFC_AE_SCN_NPORT = 0x0008, | |
515 | IBMVFC_AE_SCN_GROUP = 0x0010, | |
516 | IBMVFC_AE_SCN_DOMAIN = 0x0020, | |
517 | IBMVFC_AE_SCN_FABRIC = 0x0040, | |
518 | IBMVFC_AE_LINK_UP = 0x0080, | |
519 | IBMVFC_AE_LINK_DOWN = 0x0100, | |
520 | IBMVFC_AE_LINK_DEAD = 0x0200, | |
521 | IBMVFC_AE_HALT = 0x0400, | |
522 | IBMVFC_AE_RESUME = 0x0800, | |
523 | IBMVFC_AE_ADAPTER_FAILED = 0x1000, | |
524 | }; | |
525 | ||
526 | struct ibmvfc_crq { | |
527 | u8 valid; | |
528 | u8 format; | |
529 | u8 reserved[6]; | |
530 | u64 ioba; | |
531 | }__attribute__((packed, aligned (8))); | |
532 | ||
533 | struct ibmvfc_crq_queue { | |
534 | struct ibmvfc_crq *msgs; | |
535 | int size, cur; | |
536 | dma_addr_t msg_token; | |
537 | }; | |
538 | ||
539 | struct ibmvfc_async_crq { | |
540 | u8 valid; | |
541 | u8 pad[3]; | |
542 | u32 pad2; | |
543 | u64 event; | |
544 | u64 scsi_id; | |
545 | u64 wwpn; | |
546 | u64 node_name; | |
547 | u64 reserved; | |
548 | }__attribute__((packed, aligned (8))); | |
549 | ||
550 | struct ibmvfc_async_crq_queue { | |
551 | struct ibmvfc_async_crq *msgs; | |
552 | int size, cur; | |
553 | dma_addr_t msg_token; | |
554 | }; | |
555 | ||
556 | union ibmvfc_iu { | |
557 | struct ibmvfc_mad_common mad_common; | |
558 | struct ibmvfc_npiv_login_mad npiv_login; | |
559 | struct ibmvfc_discover_targets discover_targets; | |
560 | struct ibmvfc_port_login plogi; | |
561 | struct ibmvfc_process_login prli; | |
562 | struct ibmvfc_query_tgt query_tgt; | |
563 | struct ibmvfc_implicit_logout implicit_logout; | |
564 | struct ibmvfc_tmf tmf; | |
565 | struct ibmvfc_cmd cmd; | |
989b8545 | 566 | struct ibmvfc_passthru_mad passthru; |
072b91f9 BK |
567 | }__attribute__((packed, aligned (8))); |
568 | ||
569 | enum ibmvfc_target_action { | |
570 | IBMVFC_TGT_ACTION_NONE = 0, | |
571 | IBMVFC_TGT_ACTION_INIT, | |
572 | IBMVFC_TGT_ACTION_INIT_WAIT, | |
573 | IBMVFC_TGT_ACTION_ADD_RPORT, | |
574 | IBMVFC_TGT_ACTION_DEL_RPORT, | |
575 | }; | |
576 | ||
577 | struct ibmvfc_target { | |
578 | struct list_head queue; | |
579 | struct ibmvfc_host *vhost; | |
580 | u64 scsi_id; | |
581 | u64 new_scsi_id; | |
582 | struct fc_rport *rport; | |
583 | int target_id; | |
584 | enum ibmvfc_target_action action; | |
585 | int need_login; | |
586 | int init_retries; | |
587 | struct ibmvfc_service_parms service_parms; | |
588 | struct ibmvfc_service_parms service_parms_change; | |
589 | struct fc_rport_identifiers ids; | |
590 | void (*job_step) (struct ibmvfc_target *); | |
591 | struct kref kref; | |
592 | }; | |
593 | ||
594 | /* a unit of work for the hosting partition */ | |
595 | struct ibmvfc_event { | |
596 | struct list_head queue; | |
597 | struct ibmvfc_host *vhost; | |
598 | struct ibmvfc_target *tgt; | |
599 | struct scsi_cmnd *cmnd; | |
600 | atomic_t free; | |
601 | union ibmvfc_iu *xfer_iu; | |
602 | void (*done) (struct ibmvfc_event *); | |
603 | struct ibmvfc_crq crq; | |
604 | union ibmvfc_iu iu; | |
605 | union ibmvfc_iu *sync_iu; | |
606 | struct srp_direct_buf *ext_list; | |
607 | dma_addr_t ext_list_token; | |
608 | struct completion comp; | |
609 | struct timer_list timer; | |
610 | }; | |
611 | ||
612 | /* a pool of event structs for use */ | |
613 | struct ibmvfc_event_pool { | |
614 | struct ibmvfc_event *events; | |
615 | u32 size; | |
616 | union ibmvfc_iu *iu_storage; | |
617 | dma_addr_t iu_token; | |
618 | }; | |
619 | ||
620 | enum ibmvfc_host_action { | |
621 | IBMVFC_HOST_ACTION_NONE = 0, | |
622 | IBMVFC_HOST_ACTION_INIT, | |
623 | IBMVFC_HOST_ACTION_INIT_WAIT, | |
624 | IBMVFC_HOST_ACTION_QUERY, | |
625 | IBMVFC_HOST_ACTION_QUERY_TGTS, | |
626 | IBMVFC_HOST_ACTION_TGT_DEL, | |
627 | IBMVFC_HOST_ACTION_ALLOC_TGTS, | |
628 | IBMVFC_HOST_ACTION_TGT_INIT, | |
629 | IBMVFC_HOST_ACTION_TGT_ADD, | |
630 | }; | |
631 | ||
632 | enum ibmvfc_host_state { | |
633 | IBMVFC_NO_CRQ = 0, | |
634 | IBMVFC_INITIALIZING, | |
635 | IBMVFC_ACTIVE, | |
636 | IBMVFC_HALTED, | |
637 | IBMVFC_LINK_DOWN, | |
638 | IBMVFC_LINK_DEAD, | |
639 | IBMVFC_HOST_OFFLINE, | |
640 | }; | |
641 | ||
642 | struct ibmvfc_host { | |
643 | char name[8]; | |
644 | struct list_head queue; | |
645 | struct Scsi_Host *host; | |
646 | enum ibmvfc_host_state state; | |
647 | enum ibmvfc_host_action action; | |
648 | #define IBMVFC_NUM_TRACE_INDEX_BITS 8 | |
649 | #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS) | |
650 | #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) | |
651 | struct ibmvfc_trace_entry *trace; | |
652 | u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS; | |
653 | int num_targets; | |
654 | struct list_head targets; | |
655 | struct list_head sent; | |
656 | struct list_head free; | |
657 | struct device *dev; | |
658 | struct ibmvfc_event_pool pool; | |
659 | struct dma_pool *sg_pool; | |
660 | mempool_t *tgt_pool; | |
661 | struct ibmvfc_crq_queue crq; | |
662 | struct ibmvfc_async_crq_queue async_crq; | |
663 | struct ibmvfc_npiv_login login_info; | |
664 | union ibmvfc_npiv_login_data *login_buf; | |
665 | dma_addr_t login_buf_dma; | |
666 | int disc_buf_sz; | |
667 | int log_level; | |
668 | struct ibmvfc_discover_targets_buf *disc_buf; | |
669 | int task_set; | |
670 | int init_retries; | |
671 | int discovery_threads; | |
672 | int client_migrated; | |
673 | int reinit; | |
674 | int events_to_log; | |
675 | #define IBMVFC_AE_LINKUP 0x0001 | |
676 | #define IBMVFC_AE_LINKDOWN 0x0002 | |
677 | #define IBMVFC_AE_RSCN 0x0004 | |
678 | dma_addr_t disc_buf_dma; | |
679 | unsigned int partition_number; | |
680 | char partition_name[97]; | |
681 | void (*job_step) (struct ibmvfc_host *); | |
682 | struct task_struct *work_thread; | |
683 | wait_queue_head_t init_wait_q; | |
684 | wait_queue_head_t work_wait_q; | |
685 | }; | |
686 | ||
687 | #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0) | |
688 | ||
689 | #define tgt_dbg(t, fmt, ...) \ | |
690 | DBG_CMD(dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__)) | |
691 | ||
989b8545 BK |
692 | #define tgt_info(t, fmt, ...) \ |
693 | dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__) | |
694 | ||
072b91f9 BK |
695 | #define tgt_err(t, fmt, ...) \ |
696 | dev_err((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__) | |
697 | ||
698 | #define ibmvfc_dbg(vhost, ...) \ | |
699 | DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__)) | |
700 | ||
701 | #define ibmvfc_log(vhost, level, ...) \ | |
702 | do { \ | |
703 | if (level >= (vhost)->log_level) \ | |
704 | dev_err((vhost)->dev, ##__VA_ARGS__); \ | |
705 | } while (0) | |
706 | ||
cadbd4a5 HH |
707 | #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__)) |
708 | #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__)) | |
072b91f9 BK |
709 | |
710 | #ifdef CONFIG_SCSI_IBMVFC_TRACE | |
711 | #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr) | |
712 | #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr) | |
713 | #else | |
714 | #define ibmvfc_create_trace_file(kobj, attr) 0 | |
715 | #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0) | |
716 | #endif | |
717 | ||
718 | #endif |