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072b91f9 BK |
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" | |
88346787 BK |
32 | #define IBMVFC_DRIVER_VERSION "1.0.11" |
33 | #define IBMVFC_DRIVER_DATE "(April 12, 2013)" | |
072b91f9 | 34 | |
14ae6fac | 35 | #define IBMVFC_DEFAULT_TIMEOUT 60 |
10501e1c BK |
36 | #define IBMVFC_ADISC_CANCEL_TIMEOUT 45 |
37 | #define IBMVFC_ADISC_TIMEOUT 15 | |
38 | #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \ | |
39 | (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT) | |
d2131b33 | 40 | #define IBMVFC_INIT_TIMEOUT 120 |
d2fab5cf | 41 | #define IBMVFC_ABORT_TIMEOUT 8 |
daa142d1 | 42 | #define IBMVFC_ABORT_WAIT_TIMEOUT 40 |
072b91f9 BK |
43 | #define IBMVFC_MAX_REQUESTS_DEFAULT 100 |
44 | ||
45 | #define IBMVFC_DEBUG 0 | |
46 | #define IBMVFC_MAX_TARGETS 1024 | |
47 | #define IBMVFC_MAX_LUN 0xffffffff | |
48 | #define IBMVFC_MAX_SECTORS 0xffffu | |
49 | #define IBMVFC_MAX_DISC_THREADS 4 | |
50 | #define IBMVFC_TGT_MEMPOOL_SZ 64 | |
51 | #define IBMVFC_MAX_CMDS_PER_LUN 64 | |
1c41fa82 BK |
52 | #define IBMVFC_MAX_HOST_INIT_RETRIES 6 |
53 | #define IBMVFC_MAX_TGT_INIT_RETRIES 3 | |
072b91f9 BK |
54 | #define IBMVFC_DEV_LOSS_TMO (5 * 60) |
55 | #define IBMVFC_DEFAULT_LOG_LEVEL 2 | |
56 | #define IBMVFC_MAX_CDB_LEN 16 | |
57 | ||
58 | /* | |
59 | * Ensure we have resources for ERP and initialization: | |
60 | * 1 for ERP | |
61 | * 1 for initialization | |
79111d08 | 62 | * 1 for NPIV Logout |
d31429e1 | 63 | * 2 for BSG passthru |
10501e1c | 64 | * 2 for each discovery thread |
072b91f9 | 65 | */ |
d31429e1 | 66 | #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2)) |
072b91f9 BK |
67 | |
68 | #define IBMVFC_MAD_SUCCESS 0x00 | |
69 | #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 | |
70 | #define IBMVFC_MAD_FAILED 0xF7 | |
71 | #define IBMVFC_MAD_DRIVER_FAILED 0xEE | |
72 | #define IBMVFC_MAD_CRQ_ERROR 0xEF | |
73 | ||
74 | enum ibmvfc_crq_valid { | |
75 | IBMVFC_CRQ_CMD_RSP = 0x80, | |
76 | IBMVFC_CRQ_INIT_RSP = 0xC0, | |
77 | IBMVFC_CRQ_XPORT_EVENT = 0xFF, | |
78 | }; | |
79 | ||
80 | enum ibmvfc_crq_format { | |
81 | IBMVFC_CRQ_INIT = 0x01, | |
82 | IBMVFC_CRQ_INIT_COMPLETE = 0x02, | |
83 | IBMVFC_PARTITION_MIGRATED = 0x06, | |
84 | }; | |
85 | ||
86 | enum ibmvfc_cmd_status_flags { | |
87 | IBMVFC_FABRIC_MAPPED = 0x0001, | |
88 | IBMVFC_VIOS_FAILURE = 0x0002, | |
89 | IBMVFC_FC_FAILURE = 0x0004, | |
90 | IBMVFC_FC_SCSI_ERROR = 0x0008, | |
91 | IBMVFC_HW_EVENT_LOGGED = 0x0010, | |
92 | IBMVFC_VIOS_LOGGED = 0x0020, | |
93 | }; | |
94 | ||
95 | enum ibmvfc_fabric_mapped_errors { | |
96 | IBMVFC_UNABLE_TO_ESTABLISH = 0x0001, | |
97 | IBMVFC_XPORT_FAULT = 0x0002, | |
98 | IBMVFC_CMD_TIMEOUT = 0x0003, | |
99 | IBMVFC_ENETDOWN = 0x0004, | |
100 | IBMVFC_HW_FAILURE = 0x0005, | |
101 | IBMVFC_LINK_DOWN_ERR = 0x0006, | |
102 | IBMVFC_LINK_DEAD_ERR = 0x0007, | |
103 | IBMVFC_UNABLE_TO_REGISTER = 0x0008, | |
104 | IBMVFC_XPORT_BUSY = 0x000A, | |
105 | IBMVFC_XPORT_DEAD = 0x000B, | |
106 | IBMVFC_CONFIG_ERROR = 0x000C, | |
107 | IBMVFC_NAME_SERVER_FAIL = 0x000D, | |
108 | IBMVFC_LINK_HALTED = 0x000E, | |
109 | IBMVFC_XPORT_GENERAL = 0x8000, | |
110 | }; | |
111 | ||
112 | enum ibmvfc_vios_errors { | |
113 | IBMVFC_CRQ_FAILURE = 0x0001, | |
114 | IBMVFC_SW_FAILURE = 0x0002, | |
115 | IBMVFC_INVALID_PARAMETER = 0x0003, | |
116 | IBMVFC_MISSING_PARAMETER = 0x0004, | |
117 | IBMVFC_HOST_IO_BUS = 0x0005, | |
118 | IBMVFC_TRANS_CANCELLED = 0x0006, | |
119 | IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, | |
120 | IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, | |
646d3857 | 121 | IBMVFC_PLOGI_REQUIRED = 0x0010, |
072b91f9 BK |
122 | IBMVFC_COMMAND_FAILED = 0x8000, |
123 | }; | |
124 | ||
125 | enum ibmvfc_mad_types { | |
126 | IBMVFC_NPIV_LOGIN = 0x0001, | |
127 | IBMVFC_DISC_TARGETS = 0x0002, | |
128 | IBMVFC_PORT_LOGIN = 0x0004, | |
129 | IBMVFC_PROCESS_LOGIN = 0x0008, | |
130 | IBMVFC_QUERY_TARGET = 0x0010, | |
131 | IBMVFC_IMPLICIT_LOGOUT = 0x0040, | |
989b8545 | 132 | IBMVFC_PASSTHRU = 0x0200, |
072b91f9 | 133 | IBMVFC_TMF_MAD = 0x0100, |
79111d08 | 134 | IBMVFC_NPIV_LOGOUT = 0x0800, |
072b91f9 BK |
135 | }; |
136 | ||
137 | struct ibmvfc_mad_common { | |
0aab6c3f TD |
138 | __be32 version; |
139 | __be32 reserved; | |
140 | __be32 opcode; | |
141 | __be16 status; | |
142 | __be16 length; | |
143 | __be64 tag; | |
072b91f9 BK |
144 | }__attribute__((packed, aligned (8))); |
145 | ||
146 | struct ibmvfc_npiv_login_mad { | |
147 | struct ibmvfc_mad_common common; | |
148 | struct srp_direct_buf buffer; | |
149 | }__attribute__((packed, aligned (8))); | |
150 | ||
79111d08 BK |
151 | struct ibmvfc_npiv_logout_mad { |
152 | struct ibmvfc_mad_common common; | |
153 | }__attribute__((packed, aligned (8))); | |
154 | ||
072b91f9 BK |
155 | #define IBMVFC_MAX_NAME 256 |
156 | ||
157 | struct ibmvfc_npiv_login { | |
0aab6c3f | 158 | __be32 ostype; |
072b91f9 | 159 | #define IBMVFC_OS_LINUX 0x02 |
0aab6c3f TD |
160 | __be32 pad; |
161 | __be64 max_dma_len; | |
162 | __be32 max_payload; | |
163 | __be32 max_response; | |
164 | __be32 partition_num; | |
165 | __be32 vfc_frame_version; | |
166 | __be16 fcp_version; | |
167 | __be16 flags; | |
072b91f9 BK |
168 | #define IBMVFC_CLIENT_MIGRATED 0x01 |
169 | #define IBMVFC_FLUSH_ON_HALT 0x02 | |
0aab6c3f TD |
170 | __be32 max_cmds; |
171 | __be64 capabilities; | |
072b91f9 | 172 | #define IBMVFC_CAN_MIGRATE 0x01 |
0aab6c3f | 173 | __be64 node_name; |
072b91f9 BK |
174 | struct srp_direct_buf async; |
175 | u8 partition_name[IBMVFC_MAX_NAME]; | |
176 | u8 device_name[IBMVFC_MAX_NAME]; | |
177 | u8 drc_name[IBMVFC_MAX_NAME]; | |
0aab6c3f | 178 | __be64 reserved2[2]; |
072b91f9 BK |
179 | }__attribute__((packed, aligned (8))); |
180 | ||
181 | struct ibmvfc_common_svc_parms { | |
0aab6c3f TD |
182 | __be16 fcph_version; |
183 | __be16 b2b_credit; | |
184 | __be16 features; | |
185 | __be16 bb_rcv_sz; /* upper nibble is BB_SC_N */ | |
186 | __be32 ratov; | |
187 | __be32 edtov; | |
072b91f9 BK |
188 | }__attribute__((packed, aligned (4))); |
189 | ||
190 | struct ibmvfc_service_parms { | |
191 | struct ibmvfc_common_svc_parms common; | |
192 | u8 port_name[8]; | |
193 | u8 node_name[8]; | |
0aab6c3f TD |
194 | __be32 class1_parms[4]; |
195 | __be32 class2_parms[4]; | |
196 | __be32 class3_parms[4]; | |
197 | __be32 obsolete[4]; | |
198 | __be32 vendor_version[4]; | |
199 | __be32 services_avail[2]; | |
200 | __be32 ext_len; | |
201 | __be32 reserved[30]; | |
202 | __be32 clk_sync_qos[2]; | |
072b91f9 BK |
203 | }__attribute__((packed, aligned (4))); |
204 | ||
205 | struct ibmvfc_npiv_login_resp { | |
0aab6c3f TD |
206 | __be32 version; |
207 | __be16 status; | |
208 | __be16 error; | |
209 | __be32 flags; | |
072b91f9 | 210 | #define IBMVFC_NATIVE_FC 0x01 |
0aab6c3f TD |
211 | __be32 reserved; |
212 | __be64 capabilities; | |
497f9c50 | 213 | #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 |
90f725db | 214 | #define IBMVFC_CAN_SUPPRESS_ABTS 0x10 |
0aab6c3f TD |
215 | __be32 max_cmds; |
216 | __be32 scsi_id_sz; | |
217 | __be64 max_dma_len; | |
218 | __be64 scsi_id; | |
219 | __be64 port_name; | |
220 | __be64 node_name; | |
221 | __be64 link_speed; | |
072b91f9 BK |
222 | u8 partition_name[IBMVFC_MAX_NAME]; |
223 | u8 device_name[IBMVFC_MAX_NAME]; | |
224 | u8 port_loc_code[IBMVFC_MAX_NAME]; | |
225 | u8 drc_name[IBMVFC_MAX_NAME]; | |
226 | struct ibmvfc_service_parms service_parms; | |
0aab6c3f | 227 | __be64 reserved2; |
072b91f9 BK |
228 | }__attribute__((packed, aligned (8))); |
229 | ||
230 | union ibmvfc_npiv_login_data { | |
231 | struct ibmvfc_npiv_login login; | |
232 | struct ibmvfc_npiv_login_resp resp; | |
233 | }__attribute__((packed, aligned (8))); | |
234 | ||
235 | struct ibmvfc_discover_targets_buf { | |
0aab6c3f | 236 | __be32 scsi_id[1]; |
072b91f9 BK |
237 | #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff |
238 | }; | |
239 | ||
240 | struct ibmvfc_discover_targets { | |
241 | struct ibmvfc_mad_common common; | |
242 | struct srp_direct_buf buffer; | |
0aab6c3f TD |
243 | __be32 flags; |
244 | __be16 status; | |
245 | __be16 error; | |
246 | __be32 bufflen; | |
247 | __be32 num_avail; | |
248 | __be32 num_written; | |
249 | __be64 reserved[2]; | |
072b91f9 BK |
250 | }__attribute__((packed, aligned (8))); |
251 | ||
252 | enum ibmvfc_fc_reason { | |
253 | IBMVFC_INVALID_ELS_CMD_CODE = 0x01, | |
254 | IBMVFC_INVALID_VERSION = 0x02, | |
255 | IBMVFC_LOGICAL_ERROR = 0x03, | |
256 | IBMVFC_INVALID_CT_IU_SIZE = 0x04, | |
257 | IBMVFC_LOGICAL_BUSY = 0x05, | |
258 | IBMVFC_PROTOCOL_ERROR = 0x07, | |
259 | IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09, | |
260 | IBMVFC_CMD_NOT_SUPPORTED = 0x0B, | |
261 | IBMVFC_SERVER_NOT_AVAIL = 0x0D, | |
262 | IBMVFC_CMD_IN_PROGRESS = 0x0E, | |
263 | IBMVFC_VENDOR_SPECIFIC = 0xFF, | |
264 | }; | |
265 | ||
266 | enum ibmvfc_fc_type { | |
267 | IBMVFC_FABRIC_REJECT = 0x01, | |
268 | IBMVFC_PORT_REJECT = 0x02, | |
269 | IBMVFC_LS_REJECT = 0x03, | |
270 | IBMVFC_FABRIC_BUSY = 0x04, | |
271 | IBMVFC_PORT_BUSY = 0x05, | |
272 | IBMVFC_BASIC_REJECT = 0x06, | |
273 | }; | |
274 | ||
275 | enum ibmvfc_gs_explain { | |
276 | IBMVFC_PORT_NAME_NOT_REG = 0x02, | |
277 | }; | |
278 | ||
279 | struct ibmvfc_port_login { | |
280 | struct ibmvfc_mad_common common; | |
0aab6c3f TD |
281 | __be64 scsi_id; |
282 | __be16 reserved; | |
283 | __be16 fc_service_class; | |
284 | __be32 blksz; | |
285 | __be32 hdr_per_blk; | |
286 | __be16 status; | |
287 | __be16 error; /* also fc_reason */ | |
288 | __be16 fc_explain; | |
289 | __be16 fc_type; | |
290 | __be32 reserved2; | |
072b91f9 BK |
291 | struct ibmvfc_service_parms service_parms; |
292 | struct ibmvfc_service_parms service_parms_change; | |
0aab6c3f | 293 | __be64 reserved3[2]; |
072b91f9 BK |
294 | }__attribute__((packed, aligned (8))); |
295 | ||
296 | struct ibmvfc_prli_svc_parms { | |
297 | u8 type; | |
298 | #define IBMVFC_SCSI_FCP_TYPE 0x08 | |
299 | u8 type_ext; | |
0aab6c3f | 300 | __be16 flags; |
072b91f9 BK |
301 | #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 |
302 | #define IBMVFC_PRLI_RESP_PA_VALID 0x4000 | |
303 | #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 | |
0aab6c3f TD |
304 | __be32 orig_pa; |
305 | __be32 resp_pa; | |
306 | __be32 service_parms; | |
072b91f9 BK |
307 | #define IBMVFC_PRLI_TASK_RETRY 0x00000200 |
308 | #define IBMVFC_PRLI_RETRY 0x00000100 | |
309 | #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040 | |
310 | #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020 | |
311 | #define IBMVFC_PRLI_TARGET_FUNC 0x00000010 | |
312 | #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 | |
313 | #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 | |
314 | }__attribute__((packed, aligned (4))); | |
315 | ||
316 | struct ibmvfc_process_login { | |
317 | struct ibmvfc_mad_common common; | |
0aab6c3f | 318 | __be64 scsi_id; |
072b91f9 BK |
319 | struct ibmvfc_prli_svc_parms parms; |
320 | u8 reserved[48]; | |
0aab6c3f TD |
321 | __be16 status; |
322 | __be16 error; /* also fc_reason */ | |
323 | __be32 reserved2; | |
324 | __be64 reserved3[2]; | |
072b91f9 BK |
325 | }__attribute__((packed, aligned (8))); |
326 | ||
327 | struct ibmvfc_query_tgt { | |
328 | struct ibmvfc_mad_common common; | |
0aab6c3f TD |
329 | __be64 wwpn; |
330 | __be64 scsi_id; | |
331 | __be16 status; | |
332 | __be16 error; | |
333 | __be16 fc_explain; | |
334 | __be16 fc_type; | |
335 | __be64 reserved[2]; | |
072b91f9 BK |
336 | }__attribute__((packed, aligned (8))); |
337 | ||
338 | struct ibmvfc_implicit_logout { | |
339 | struct ibmvfc_mad_common common; | |
0aab6c3f TD |
340 | __be64 old_scsi_id; |
341 | __be64 reserved[2]; | |
072b91f9 BK |
342 | }__attribute__((packed, aligned (8))); |
343 | ||
344 | struct ibmvfc_tmf { | |
345 | struct ibmvfc_mad_common common; | |
0aab6c3f | 346 | __be64 scsi_id; |
072b91f9 | 347 | struct scsi_lun lun; |
0aab6c3f | 348 | __be32 flags; |
072b91f9 BK |
349 | #define IBMVFC_TMF_ABORT_TASK 0x02 |
350 | #define IBMVFC_TMF_ABORT_TASK_SET 0x04 | |
351 | #define IBMVFC_TMF_LUN_RESET 0x10 | |
352 | #define IBMVFC_TMF_TGT_RESET 0x20 | |
353 | #define IBMVFC_TMF_LUA_VALID 0x40 | |
90f725db | 354 | #define IBMVFC_TMF_SUPPRESS_ABTS 0x80 |
0aab6c3f TD |
355 | __be32 cancel_key; |
356 | __be32 my_cancel_key; | |
357 | __be32 pad; | |
358 | __be64 reserved[2]; | |
072b91f9 BK |
359 | }__attribute__((packed, aligned (8))); |
360 | ||
361 | enum ibmvfc_fcp_rsp_info_codes { | |
362 | RSP_NO_FAILURE = 0x00, | |
363 | RSP_TMF_REJECTED = 0x04, | |
364 | RSP_TMF_FAILED = 0x05, | |
365 | RSP_TMF_INVALID_LUN = 0x09, | |
366 | }; | |
367 | ||
368 | struct ibmvfc_fcp_rsp_info { | |
0aab6c3f | 369 | __be16 reserved; |
072b91f9 BK |
370 | u8 rsp_code; |
371 | u8 reserved2[4]; | |
372 | }__attribute__((packed, aligned (2))); | |
373 | ||
374 | enum ibmvfc_fcp_rsp_flags { | |
375 | FCP_BIDI_RSP = 0x80, | |
376 | FCP_BIDI_READ_RESID_UNDER = 0x40, | |
377 | FCP_BIDI_READ_RESID_OVER = 0x20, | |
378 | FCP_CONF_REQ = 0x10, | |
379 | FCP_RESID_UNDER = 0x08, | |
380 | FCP_RESID_OVER = 0x04, | |
381 | FCP_SNS_LEN_VALID = 0x02, | |
382 | FCP_RSP_LEN_VALID = 0x01, | |
383 | }; | |
384 | ||
385 | union ibmvfc_fcp_rsp_data { | |
386 | struct ibmvfc_fcp_rsp_info info; | |
387 | u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; | |
388 | }__attribute__((packed, aligned (8))); | |
389 | ||
390 | struct ibmvfc_fcp_rsp { | |
0aab6c3f TD |
391 | __be64 reserved; |
392 | __be16 retry_delay_timer; | |
072b91f9 BK |
393 | u8 flags; |
394 | u8 scsi_status; | |
0aab6c3f TD |
395 | __be32 fcp_resid; |
396 | __be32 fcp_sense_len; | |
397 | __be32 fcp_rsp_len; | |
072b91f9 BK |
398 | union ibmvfc_fcp_rsp_data data; |
399 | }__attribute__((packed, aligned (8))); | |
400 | ||
401 | enum ibmvfc_cmd_flags { | |
402 | IBMVFC_SCATTERLIST = 0x0001, | |
403 | IBMVFC_NO_MEM_DESC = 0x0002, | |
404 | IBMVFC_READ = 0x0004, | |
405 | IBMVFC_WRITE = 0x0008, | |
406 | IBMVFC_TMF = 0x0080, | |
407 | IBMVFC_CLASS_3_ERR = 0x0100, | |
408 | }; | |
409 | ||
410 | enum ibmvfc_fc_task_attr { | |
411 | IBMVFC_SIMPLE_TASK = 0x00, | |
412 | IBMVFC_HEAD_OF_QUEUE = 0x01, | |
413 | IBMVFC_ORDERED_TASK = 0x02, | |
414 | IBMVFC_ACA_TASK = 0x04, | |
415 | }; | |
416 | ||
417 | enum ibmvfc_fc_tmf_flags { | |
418 | IBMVFC_ABORT_TASK_SET = 0x02, | |
419 | IBMVFC_LUN_RESET = 0x10, | |
420 | IBMVFC_TARGET_RESET = 0x20, | |
421 | }; | |
422 | ||
423 | struct ibmvfc_fcp_cmd_iu { | |
424 | struct scsi_lun lun; | |
425 | u8 crn; | |
426 | u8 pri_task_attr; | |
427 | u8 tmf_flags; | |
428 | u8 add_cdb_len; | |
429 | #define IBMVFC_RDDATA 0x02 | |
430 | #define IBMVFC_WRDATA 0x01 | |
431 | u8 cdb[IBMVFC_MAX_CDB_LEN]; | |
0aab6c3f | 432 | __be32 xfer_len; |
072b91f9 BK |
433 | }__attribute__((packed, aligned (4))); |
434 | ||
435 | struct ibmvfc_cmd { | |
0aab6c3f TD |
436 | __be64 task_tag; |
437 | __be32 frame_type; | |
438 | __be32 payload_len; | |
439 | __be32 resp_len; | |
440 | __be32 adapter_resid; | |
441 | __be16 status; | |
442 | __be16 error; | |
443 | __be16 flags; | |
444 | __be16 response_flags; | |
072b91f9 | 445 | #define IBMVFC_ADAPTER_RESID_VALID 0x01 |
0aab6c3f TD |
446 | __be32 cancel_key; |
447 | __be32 exchange_id; | |
072b91f9 BK |
448 | struct srp_direct_buf ext_func; |
449 | struct srp_direct_buf ioba; | |
450 | struct srp_direct_buf resp; | |
0aab6c3f TD |
451 | __be64 correlation; |
452 | __be64 tgt_scsi_id; | |
453 | __be64 tag; | |
454 | __be64 reserved3[2]; | |
072b91f9 BK |
455 | struct ibmvfc_fcp_cmd_iu iu; |
456 | struct ibmvfc_fcp_rsp rsp; | |
457 | }__attribute__((packed, aligned (8))); | |
458 | ||
989b8545 | 459 | struct ibmvfc_passthru_fc_iu { |
0aab6c3f | 460 | __be32 payload[7]; |
989b8545 | 461 | #define IBMVFC_ADISC 0x52000000 |
0aab6c3f | 462 | __be32 response[7]; |
989b8545 BK |
463 | }; |
464 | ||
465 | struct ibmvfc_passthru_iu { | |
0aab6c3f TD |
466 | __be64 task_tag; |
467 | __be32 cmd_len; | |
468 | __be32 rsp_len; | |
469 | __be16 status; | |
470 | __be16 error; | |
471 | __be32 flags; | |
989b8545 | 472 | #define IBMVFC_FC_ELS 0x01 |
d31429e1 | 473 | #define IBMVFC_FC_CT_IU 0x02 |
0aab6c3f | 474 | __be32 cancel_key; |
d31429e1 BK |
475 | #define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000 |
476 | #define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001 | |
0aab6c3f | 477 | __be32 reserved; |
989b8545 BK |
478 | struct srp_direct_buf cmd; |
479 | struct srp_direct_buf rsp; | |
0aab6c3f TD |
480 | __be64 correlation; |
481 | __be64 scsi_id; | |
482 | __be64 tag; | |
483 | __be64 reserved2[2]; | |
989b8545 BK |
484 | }__attribute__((packed, aligned (8))); |
485 | ||
486 | struct ibmvfc_passthru_mad { | |
487 | struct ibmvfc_mad_common common; | |
488 | struct srp_direct_buf cmd_ioba; | |
489 | struct ibmvfc_passthru_iu iu; | |
490 | struct ibmvfc_passthru_fc_iu fc_iu; | |
491 | }__attribute__((packed, aligned (8))); | |
492 | ||
072b91f9 BK |
493 | struct ibmvfc_trace_start_entry { |
494 | u32 xfer_len; | |
495 | }__attribute__((packed)); | |
496 | ||
497 | struct ibmvfc_trace_end_entry { | |
498 | u16 status; | |
499 | u16 error; | |
500 | u8 fcp_rsp_flags; | |
501 | u8 rsp_code; | |
502 | u8 scsi_status; | |
503 | u8 reserved; | |
504 | }__attribute__((packed)); | |
505 | ||
506 | struct ibmvfc_trace_entry { | |
507 | struct ibmvfc_event *evt; | |
508 | u32 time; | |
509 | u32 scsi_id; | |
510 | u32 lun; | |
511 | u8 fmt; | |
512 | u8 op_code; | |
513 | u8 tmf_flags; | |
514 | u8 type; | |
515 | #define IBMVFC_TRC_START 0x00 | |
516 | #define IBMVFC_TRC_END 0xff | |
517 | union { | |
518 | struct ibmvfc_trace_start_entry start; | |
519 | struct ibmvfc_trace_end_entry end; | |
520 | } u; | |
521 | }__attribute__((packed, aligned (8))); | |
522 | ||
523 | enum ibmvfc_crq_formats { | |
524 | IBMVFC_CMD_FORMAT = 0x01, | |
525 | IBMVFC_ASYNC_EVENT = 0x02, | |
526 | IBMVFC_MAD_FORMAT = 0x04, | |
527 | }; | |
528 | ||
529 | enum ibmvfc_async_event { | |
530 | IBMVFC_AE_ELS_PLOGI = 0x0001, | |
531 | IBMVFC_AE_ELS_LOGO = 0x0002, | |
532 | IBMVFC_AE_ELS_PRLO = 0x0004, | |
533 | IBMVFC_AE_SCN_NPORT = 0x0008, | |
534 | IBMVFC_AE_SCN_GROUP = 0x0010, | |
535 | IBMVFC_AE_SCN_DOMAIN = 0x0020, | |
536 | IBMVFC_AE_SCN_FABRIC = 0x0040, | |
537 | IBMVFC_AE_LINK_UP = 0x0080, | |
538 | IBMVFC_AE_LINK_DOWN = 0x0100, | |
539 | IBMVFC_AE_LINK_DEAD = 0x0200, | |
540 | IBMVFC_AE_HALT = 0x0400, | |
541 | IBMVFC_AE_RESUME = 0x0800, | |
542 | IBMVFC_AE_ADAPTER_FAILED = 0x1000, | |
543 | }; | |
544 | ||
d99e5f48 | 545 | struct ibmvfc_async_desc { |
d99e5f48 | 546 | const char *desc; |
402c6eec | 547 | enum ibmvfc_async_event ae; |
d99e5f48 BK |
548 | int log_level; |
549 | }; | |
550 | ||
072b91f9 | 551 | struct ibmvfc_crq { |
5919ce29 BK |
552 | volatile u8 valid; |
553 | volatile u8 format; | |
072b91f9 | 554 | u8 reserved[6]; |
0aab6c3f | 555 | volatile __be64 ioba; |
072b91f9 BK |
556 | }__attribute__((packed, aligned (8))); |
557 | ||
558 | struct ibmvfc_crq_queue { | |
559 | struct ibmvfc_crq *msgs; | |
560 | int size, cur; | |
561 | dma_addr_t msg_token; | |
562 | }; | |
563 | ||
497f9c50 BK |
564 | enum ibmvfc_ae_link_state { |
565 | IBMVFC_AE_LS_LINK_UP = 0x01, | |
566 | IBMVFC_AE_LS_LINK_BOUNCED = 0x02, | |
567 | IBMVFC_AE_LS_LINK_DOWN = 0x04, | |
568 | IBMVFC_AE_LS_LINK_DEAD = 0x08, | |
569 | }; | |
570 | ||
072b91f9 | 571 | struct ibmvfc_async_crq { |
5919ce29 | 572 | volatile u8 valid; |
497f9c50 BK |
573 | u8 link_state; |
574 | u8 pad[2]; | |
0aab6c3f TD |
575 | __be32 pad2; |
576 | volatile __be64 event; | |
577 | volatile __be64 scsi_id; | |
578 | volatile __be64 wwpn; | |
579 | volatile __be64 node_name; | |
580 | __be64 reserved; | |
072b91f9 BK |
581 | }__attribute__((packed, aligned (8))); |
582 | ||
583 | struct ibmvfc_async_crq_queue { | |
584 | struct ibmvfc_async_crq *msgs; | |
585 | int size, cur; | |
586 | dma_addr_t msg_token; | |
587 | }; | |
588 | ||
589 | union ibmvfc_iu { | |
590 | struct ibmvfc_mad_common mad_common; | |
591 | struct ibmvfc_npiv_login_mad npiv_login; | |
79111d08 | 592 | struct ibmvfc_npiv_logout_mad npiv_logout; |
072b91f9 BK |
593 | struct ibmvfc_discover_targets discover_targets; |
594 | struct ibmvfc_port_login plogi; | |
595 | struct ibmvfc_process_login prli; | |
596 | struct ibmvfc_query_tgt query_tgt; | |
597 | struct ibmvfc_implicit_logout implicit_logout; | |
598 | struct ibmvfc_tmf tmf; | |
599 | struct ibmvfc_cmd cmd; | |
989b8545 | 600 | struct ibmvfc_passthru_mad passthru; |
072b91f9 BK |
601 | }__attribute__((packed, aligned (8))); |
602 | ||
603 | enum ibmvfc_target_action { | |
604 | IBMVFC_TGT_ACTION_NONE = 0, | |
605 | IBMVFC_TGT_ACTION_INIT, | |
606 | IBMVFC_TGT_ACTION_INIT_WAIT, | |
072b91f9 | 607 | IBMVFC_TGT_ACTION_DEL_RPORT, |
d5da3040 | 608 | IBMVFC_TGT_ACTION_DELETED_RPORT, |
072b91f9 BK |
609 | }; |
610 | ||
611 | struct ibmvfc_target { | |
612 | struct list_head queue; | |
613 | struct ibmvfc_host *vhost; | |
614 | u64 scsi_id; | |
615 | u64 new_scsi_id; | |
616 | struct fc_rport *rport; | |
617 | int target_id; | |
618 | enum ibmvfc_target_action action; | |
619 | int need_login; | |
43c8da90 | 620 | int add_rport; |
072b91f9 | 621 | int init_retries; |
017b2ae3 | 622 | int logo_rcvd; |
10501e1c | 623 | u32 cancel_key; |
072b91f9 BK |
624 | struct ibmvfc_service_parms service_parms; |
625 | struct ibmvfc_service_parms service_parms_change; | |
626 | struct fc_rport_identifiers ids; | |
627 | void (*job_step) (struct ibmvfc_target *); | |
10501e1c | 628 | struct timer_list timer; |
072b91f9 BK |
629 | struct kref kref; |
630 | }; | |
631 | ||
632 | /* a unit of work for the hosting partition */ | |
633 | struct ibmvfc_event { | |
634 | struct list_head queue; | |
635 | struct ibmvfc_host *vhost; | |
636 | struct ibmvfc_target *tgt; | |
637 | struct scsi_cmnd *cmnd; | |
638 | atomic_t free; | |
639 | union ibmvfc_iu *xfer_iu; | |
640 | void (*done) (struct ibmvfc_event *); | |
641 | struct ibmvfc_crq crq; | |
642 | union ibmvfc_iu iu; | |
643 | union ibmvfc_iu *sync_iu; | |
644 | struct srp_direct_buf *ext_list; | |
645 | dma_addr_t ext_list_token; | |
646 | struct completion comp; | |
ad8dcffa | 647 | struct completion *eh_comp; |
072b91f9 BK |
648 | struct timer_list timer; |
649 | }; | |
650 | ||
651 | /* a pool of event structs for use */ | |
652 | struct ibmvfc_event_pool { | |
653 | struct ibmvfc_event *events; | |
654 | u32 size; | |
655 | union ibmvfc_iu *iu_storage; | |
656 | dma_addr_t iu_token; | |
657 | }; | |
658 | ||
659 | enum ibmvfc_host_action { | |
660 | IBMVFC_HOST_ACTION_NONE = 0, | |
73ee5d86 BK |
661 | IBMVFC_HOST_ACTION_RESET, |
662 | IBMVFC_HOST_ACTION_REENABLE, | |
79111d08 BK |
663 | IBMVFC_HOST_ACTION_LOGO, |
664 | IBMVFC_HOST_ACTION_LOGO_WAIT, | |
072b91f9 BK |
665 | IBMVFC_HOST_ACTION_INIT, |
666 | IBMVFC_HOST_ACTION_INIT_WAIT, | |
667 | IBMVFC_HOST_ACTION_QUERY, | |
668 | IBMVFC_HOST_ACTION_QUERY_TGTS, | |
669 | IBMVFC_HOST_ACTION_TGT_DEL, | |
670 | IBMVFC_HOST_ACTION_ALLOC_TGTS, | |
671 | IBMVFC_HOST_ACTION_TGT_INIT, | |
10e79499 | 672 | IBMVFC_HOST_ACTION_TGT_DEL_FAILED, |
072b91f9 BK |
673 | }; |
674 | ||
675 | enum ibmvfc_host_state { | |
676 | IBMVFC_NO_CRQ = 0, | |
677 | IBMVFC_INITIALIZING, | |
678 | IBMVFC_ACTIVE, | |
679 | IBMVFC_HALTED, | |
680 | IBMVFC_LINK_DOWN, | |
681 | IBMVFC_LINK_DEAD, | |
682 | IBMVFC_HOST_OFFLINE, | |
683 | }; | |
684 | ||
685 | struct ibmvfc_host { | |
686 | char name[8]; | |
687 | struct list_head queue; | |
688 | struct Scsi_Host *host; | |
689 | enum ibmvfc_host_state state; | |
690 | enum ibmvfc_host_action action; | |
691 | #define IBMVFC_NUM_TRACE_INDEX_BITS 8 | |
692 | #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS) | |
693 | #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) | |
694 | struct ibmvfc_trace_entry *trace; | |
695 | u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS; | |
696 | int num_targets; | |
697 | struct list_head targets; | |
698 | struct list_head sent; | |
699 | struct list_head free; | |
700 | struct device *dev; | |
701 | struct ibmvfc_event_pool pool; | |
702 | struct dma_pool *sg_pool; | |
703 | mempool_t *tgt_pool; | |
704 | struct ibmvfc_crq_queue crq; | |
705 | struct ibmvfc_async_crq_queue async_crq; | |
706 | struct ibmvfc_npiv_login login_info; | |
707 | union ibmvfc_npiv_login_data *login_buf; | |
708 | dma_addr_t login_buf_dma; | |
709 | int disc_buf_sz; | |
710 | int log_level; | |
711 | struct ibmvfc_discover_targets_buf *disc_buf; | |
d31429e1 | 712 | struct mutex passthru_mutex; |
072b91f9 BK |
713 | int task_set; |
714 | int init_retries; | |
715 | int discovery_threads; | |
10501e1c | 716 | int abort_threads; |
072b91f9 BK |
717 | int client_migrated; |
718 | int reinit; | |
1c41fa82 | 719 | int delay_init; |
43c8da90 | 720 | int scan_complete; |
79111d08 | 721 | int logged_in; |
d31429e1 | 722 | int aborting_passthru; |
072b91f9 BK |
723 | int events_to_log; |
724 | #define IBMVFC_AE_LINKUP 0x0001 | |
725 | #define IBMVFC_AE_LINKDOWN 0x0002 | |
726 | #define IBMVFC_AE_RSCN 0x0004 | |
727 | dma_addr_t disc_buf_dma; | |
728 | unsigned int partition_number; | |
729 | char partition_name[97]; | |
730 | void (*job_step) (struct ibmvfc_host *); | |
731 | struct task_struct *work_thread; | |
039a0898 | 732 | struct tasklet_struct tasklet; |
43c8da90 | 733 | struct work_struct rport_add_work_q; |
072b91f9 BK |
734 | wait_queue_head_t init_wait_q; |
735 | wait_queue_head_t work_wait_q; | |
736 | }; | |
737 | ||
738 | #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0) | |
739 | ||
740 | #define tgt_dbg(t, fmt, ...) \ | |
775a42ec | 741 | DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)) |
072b91f9 | 742 | |
989b8545 | 743 | #define tgt_info(t, fmt, ...) \ |
775a42ec | 744 | dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) |
989b8545 | 745 | |
072b91f9 | 746 | #define tgt_err(t, fmt, ...) \ |
775a42ec | 747 | dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) |
072b91f9 | 748 | |
7d0e4622 BK |
749 | #define tgt_log(t, level, fmt, ...) \ |
750 | do { \ | |
751 | if ((t)->vhost->log_level >= level) \ | |
752 | tgt_err(t, fmt, ##__VA_ARGS__); \ | |
753 | } while (0) | |
754 | ||
072b91f9 BK |
755 | #define ibmvfc_dbg(vhost, ...) \ |
756 | DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__)) | |
757 | ||
758 | #define ibmvfc_log(vhost, level, ...) \ | |
759 | do { \ | |
596891ac | 760 | if ((vhost)->log_level >= level) \ |
072b91f9 BK |
761 | dev_err((vhost)->dev, ##__VA_ARGS__); \ |
762 | } while (0) | |
763 | ||
cadbd4a5 HH |
764 | #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__)) |
765 | #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__)) | |
072b91f9 BK |
766 | |
767 | #ifdef CONFIG_SCSI_IBMVFC_TRACE | |
768 | #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr) | |
769 | #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr) | |
770 | #else | |
771 | #define ibmvfc_create_trace_file(kobj, attr) 0 | |
772 | #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0) | |
773 | #endif | |
774 | ||
775 | #endif |