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10#ifndef _IBMVFC_H
11#define _IBMVFC_H
12
13#include <linux/list.h>
14#include <linux/types.h>
15#include <scsi/viosrp.h>
16
17#define IBMVFC_NAME "ibmvfc"
18#define IBMVFC_DRIVER_VERSION "1.0.11"
19#define IBMVFC_DRIVER_DATE "(April 12, 2013)"
20
21#define IBMVFC_DEFAULT_TIMEOUT 60
22#define IBMVFC_ADISC_CANCEL_TIMEOUT 45
23#define IBMVFC_ADISC_TIMEOUT 15
24#define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \
25 (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT)
26#define IBMVFC_INIT_TIMEOUT 120
27#define IBMVFC_ABORT_TIMEOUT 8
28#define IBMVFC_ABORT_WAIT_TIMEOUT 40
29#define IBMVFC_MAX_REQUESTS_DEFAULT 100
30
31#define IBMVFC_DEBUG 0
32#define IBMVFC_MAX_TARGETS 1024
33#define IBMVFC_MAX_LUN 0xffffffff
34#define IBMVFC_MAX_SECTORS 0xffffu
35#define IBMVFC_MAX_DISC_THREADS 4
36#define IBMVFC_TGT_MEMPOOL_SZ 64
37#define IBMVFC_MAX_CMDS_PER_LUN 64
38#define IBMVFC_MAX_HOST_INIT_RETRIES 6
39#define IBMVFC_MAX_TGT_INIT_RETRIES 3
40#define IBMVFC_DEV_LOSS_TMO (5 * 60)
41#define IBMVFC_DEFAULT_LOG_LEVEL 2
42#define IBMVFC_MAX_CDB_LEN 16
43#define IBMVFC_CLS3_ERROR 0
44
45
46
47
48
49
50
51
52
53#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2))
54
55#define IBMVFC_MAD_SUCCESS 0x00
56#define IBMVFC_MAD_NOT_SUPPORTED 0xF1
57#define IBMVFC_MAD_FAILED 0xF7
58#define IBMVFC_MAD_DRIVER_FAILED 0xEE
59#define IBMVFC_MAD_CRQ_ERROR 0xEF
60
61enum ibmvfc_crq_valid {
62 IBMVFC_CRQ_CMD_RSP = 0x80,
63 IBMVFC_CRQ_INIT_RSP = 0xC0,
64 IBMVFC_CRQ_XPORT_EVENT = 0xFF,
65};
66
67enum ibmvfc_crq_init_msg {
68 IBMVFC_CRQ_INIT = 0x01,
69 IBMVFC_CRQ_INIT_COMPLETE = 0x02,
70};
71
72enum ibmvfc_crq_xport_evts {
73 IBMVFC_PARTNER_FAILED = 0x01,
74 IBMVFC_PARTNER_DEREGISTER = 0x02,
75 IBMVFC_PARTITION_MIGRATED = 0x06,
76};
77
78enum ibmvfc_cmd_status_flags {
79 IBMVFC_FABRIC_MAPPED = 0x0001,
80 IBMVFC_VIOS_FAILURE = 0x0002,
81 IBMVFC_FC_FAILURE = 0x0004,
82 IBMVFC_FC_SCSI_ERROR = 0x0008,
83 IBMVFC_HW_EVENT_LOGGED = 0x0010,
84 IBMVFC_VIOS_LOGGED = 0x0020,
85};
86
87enum ibmvfc_fabric_mapped_errors {
88 IBMVFC_UNABLE_TO_ESTABLISH = 0x0001,
89 IBMVFC_XPORT_FAULT = 0x0002,
90 IBMVFC_CMD_TIMEOUT = 0x0003,
91 IBMVFC_ENETDOWN = 0x0004,
92 IBMVFC_HW_FAILURE = 0x0005,
93 IBMVFC_LINK_DOWN_ERR = 0x0006,
94 IBMVFC_LINK_DEAD_ERR = 0x0007,
95 IBMVFC_UNABLE_TO_REGISTER = 0x0008,
96 IBMVFC_XPORT_BUSY = 0x000A,
97 IBMVFC_XPORT_DEAD = 0x000B,
98 IBMVFC_CONFIG_ERROR = 0x000C,
99 IBMVFC_NAME_SERVER_FAIL = 0x000D,
100 IBMVFC_LINK_HALTED = 0x000E,
101 IBMVFC_XPORT_GENERAL = 0x8000,
102};
103
104enum ibmvfc_vios_errors {
105 IBMVFC_CRQ_FAILURE = 0x0001,
106 IBMVFC_SW_FAILURE = 0x0002,
107 IBMVFC_INVALID_PARAMETER = 0x0003,
108 IBMVFC_MISSING_PARAMETER = 0x0004,
109 IBMVFC_HOST_IO_BUS = 0x0005,
110 IBMVFC_TRANS_CANCELLED = 0x0006,
111 IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
112 IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
113 IBMVFC_PLOGI_REQUIRED = 0x0010,
114 IBMVFC_COMMAND_FAILED = 0x8000,
115};
116
117enum ibmvfc_mad_types {
118 IBMVFC_NPIV_LOGIN = 0x0001,
119 IBMVFC_DISC_TARGETS = 0x0002,
120 IBMVFC_PORT_LOGIN = 0x0004,
121 IBMVFC_PROCESS_LOGIN = 0x0008,
122 IBMVFC_QUERY_TARGET = 0x0010,
123 IBMVFC_IMPLICIT_LOGOUT = 0x0040,
124 IBMVFC_PASSTHRU = 0x0200,
125 IBMVFC_TMF_MAD = 0x0100,
126 IBMVFC_NPIV_LOGOUT = 0x0800,
127};
128
129struct ibmvfc_mad_common {
130 __be32 version;
131 __be32 reserved;
132 __be32 opcode;
133 __be16 status;
134 __be16 length;
135 __be64 tag;
136}__attribute__((packed, aligned (8)));
137
138struct ibmvfc_npiv_login_mad {
139 struct ibmvfc_mad_common common;
140 struct srp_direct_buf buffer;
141}__attribute__((packed, aligned (8)));
142
143struct ibmvfc_npiv_logout_mad {
144 struct ibmvfc_mad_common common;
145}__attribute__((packed, aligned (8)));
146
147#define IBMVFC_MAX_NAME 256
148
149struct ibmvfc_npiv_login {
150 __be32 ostype;
151#define IBMVFC_OS_LINUX 0x02
152 __be32 pad;
153 __be64 max_dma_len;
154 __be32 max_payload;
155 __be32 max_response;
156 __be32 partition_num;
157 __be32 vfc_frame_version;
158 __be16 fcp_version;
159 __be16 flags;
160#define IBMVFC_CLIENT_MIGRATED 0x01
161#define IBMVFC_FLUSH_ON_HALT 0x02
162 __be32 max_cmds;
163 __be64 capabilities;
164#define IBMVFC_CAN_MIGRATE 0x01
165 __be64 node_name;
166 struct srp_direct_buf async;
167 u8 partition_name[IBMVFC_MAX_NAME];
168 u8 device_name[IBMVFC_MAX_NAME];
169 u8 drc_name[IBMVFC_MAX_NAME];
170 __be64 reserved2[2];
171}__attribute__((packed, aligned (8)));
172
173struct ibmvfc_common_svc_parms {
174 __be16 fcph_version;
175 __be16 b2b_credit;
176 __be16 features;
177 __be16 bb_rcv_sz;
178 __be32 ratov;
179 __be32 edtov;
180}__attribute__((packed, aligned (4)));
181
182struct ibmvfc_service_parms {
183 struct ibmvfc_common_svc_parms common;
184 u8 port_name[8];
185 u8 node_name[8];
186 __be32 class1_parms[4];
187 __be32 class2_parms[4];
188 __be32 class3_parms[4];
189 __be32 obsolete[4];
190 __be32 vendor_version[4];
191 __be32 services_avail[2];
192 __be32 ext_len;
193 __be32 reserved[30];
194 __be32 clk_sync_qos[2];
195}__attribute__((packed, aligned (4)));
196
197struct ibmvfc_npiv_login_resp {
198 __be32 version;
199 __be16 status;
200 __be16 error;
201 __be32 flags;
202#define IBMVFC_NATIVE_FC 0x01
203 __be32 reserved;
204 __be64 capabilities;
205#define IBMVFC_CAN_FLUSH_ON_HALT 0x08
206#define IBMVFC_CAN_SUPPRESS_ABTS 0x10
207 __be32 max_cmds;
208 __be32 scsi_id_sz;
209 __be64 max_dma_len;
210 __be64 scsi_id;
211 __be64 port_name;
212 __be64 node_name;
213 __be64 link_speed;
214 u8 partition_name[IBMVFC_MAX_NAME];
215 u8 device_name[IBMVFC_MAX_NAME];
216 u8 port_loc_code[IBMVFC_MAX_NAME];
217 u8 drc_name[IBMVFC_MAX_NAME];
218 struct ibmvfc_service_parms service_parms;
219 __be64 reserved2;
220}__attribute__((packed, aligned (8)));
221
222union ibmvfc_npiv_login_data {
223 struct ibmvfc_npiv_login login;
224 struct ibmvfc_npiv_login_resp resp;
225}__attribute__((packed, aligned (8)));
226
227struct ibmvfc_discover_targets_buf {
228 __be32 scsi_id[1];
229#define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff
230};
231
232struct ibmvfc_discover_targets {
233 struct ibmvfc_mad_common common;
234 struct srp_direct_buf buffer;
235 __be32 flags;
236 __be16 status;
237 __be16 error;
238 __be32 bufflen;
239 __be32 num_avail;
240 __be32 num_written;
241 __be64 reserved[2];
242}__attribute__((packed, aligned (8)));
243
244enum ibmvfc_fc_reason {
245 IBMVFC_INVALID_ELS_CMD_CODE = 0x01,
246 IBMVFC_INVALID_VERSION = 0x02,
247 IBMVFC_LOGICAL_ERROR = 0x03,
248 IBMVFC_INVALID_CT_IU_SIZE = 0x04,
249 IBMVFC_LOGICAL_BUSY = 0x05,
250 IBMVFC_PROTOCOL_ERROR = 0x07,
251 IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09,
252 IBMVFC_CMD_NOT_SUPPORTED = 0x0B,
253 IBMVFC_SERVER_NOT_AVAIL = 0x0D,
254 IBMVFC_CMD_IN_PROGRESS = 0x0E,
255 IBMVFC_VENDOR_SPECIFIC = 0xFF,
256};
257
258enum ibmvfc_fc_type {
259 IBMVFC_FABRIC_REJECT = 0x01,
260 IBMVFC_PORT_REJECT = 0x02,
261 IBMVFC_LS_REJECT = 0x03,
262 IBMVFC_FABRIC_BUSY = 0x04,
263 IBMVFC_PORT_BUSY = 0x05,
264 IBMVFC_BASIC_REJECT = 0x06,
265};
266
267enum ibmvfc_gs_explain {
268 IBMVFC_PORT_NAME_NOT_REG = 0x02,
269};
270
271struct ibmvfc_port_login {
272 struct ibmvfc_mad_common common;
273 __be64 scsi_id;
274 __be16 reserved;
275 __be16 fc_service_class;
276 __be32 blksz;
277 __be32 hdr_per_blk;
278 __be16 status;
279 __be16 error;
280 __be16 fc_explain;
281 __be16 fc_type;
282 __be32 reserved2;
283 struct ibmvfc_service_parms service_parms;
284 struct ibmvfc_service_parms service_parms_change;
285 __be64 reserved3[2];
286}__attribute__((packed, aligned (8)));
287
288struct ibmvfc_prli_svc_parms {
289 u8 type;
290#define IBMVFC_SCSI_FCP_TYPE 0x08
291 u8 type_ext;
292 __be16 flags;
293#define IBMVFC_PRLI_ORIG_PA_VALID 0x8000
294#define IBMVFC_PRLI_RESP_PA_VALID 0x4000
295#define IBMVFC_PRLI_EST_IMG_PAIR 0x2000
296 __be32 orig_pa;
297 __be32 resp_pa;
298 __be32 service_parms;
299#define IBMVFC_PRLI_TASK_RETRY 0x00000200
300#define IBMVFC_PRLI_RETRY 0x00000100
301#define IBMVFC_PRLI_DATA_OVERLAY 0x00000040
302#define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020
303#define IBMVFC_PRLI_TARGET_FUNC 0x00000010
304#define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002
305#define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001
306}__attribute__((packed, aligned (4)));
307
308struct ibmvfc_process_login {
309 struct ibmvfc_mad_common common;
310 __be64 scsi_id;
311 struct ibmvfc_prli_svc_parms parms;
312 u8 reserved[48];
313 __be16 status;
314 __be16 error;
315 __be32 reserved2;
316 __be64 reserved3[2];
317}__attribute__((packed, aligned (8)));
318
319struct ibmvfc_query_tgt {
320 struct ibmvfc_mad_common common;
321 __be64 wwpn;
322 __be64 scsi_id;
323 __be16 status;
324 __be16 error;
325 __be16 fc_explain;
326 __be16 fc_type;
327 __be64 reserved[2];
328}__attribute__((packed, aligned (8)));
329
330struct ibmvfc_implicit_logout {
331 struct ibmvfc_mad_common common;
332 __be64 old_scsi_id;
333 __be64 reserved[2];
334}__attribute__((packed, aligned (8)));
335
336struct ibmvfc_tmf {
337 struct ibmvfc_mad_common common;
338 __be64 scsi_id;
339 struct scsi_lun lun;
340 __be32 flags;
341#define IBMVFC_TMF_ABORT_TASK 0x02
342#define IBMVFC_TMF_ABORT_TASK_SET 0x04
343#define IBMVFC_TMF_LUN_RESET 0x10
344#define IBMVFC_TMF_TGT_RESET 0x20
345#define IBMVFC_TMF_LUA_VALID 0x40
346#define IBMVFC_TMF_SUPPRESS_ABTS 0x80
347 __be32 cancel_key;
348 __be32 my_cancel_key;
349 __be32 pad;
350 __be64 reserved[2];
351}__attribute__((packed, aligned (8)));
352
353enum ibmvfc_fcp_rsp_info_codes {
354 RSP_NO_FAILURE = 0x00,
355 RSP_TMF_REJECTED = 0x04,
356 RSP_TMF_FAILED = 0x05,
357 RSP_TMF_INVALID_LUN = 0x09,
358};
359
360struct ibmvfc_fcp_rsp_info {
361 u8 reserved[3];
362 u8 rsp_code;
363 u8 reserved2[4];
364}__attribute__((packed, aligned (2)));
365
366enum ibmvfc_fcp_rsp_flags {
367 FCP_BIDI_RSP = 0x80,
368 FCP_BIDI_READ_RESID_UNDER = 0x40,
369 FCP_BIDI_READ_RESID_OVER = 0x20,
370 FCP_CONF_REQ = 0x10,
371 FCP_RESID_UNDER = 0x08,
372 FCP_RESID_OVER = 0x04,
373 FCP_SNS_LEN_VALID = 0x02,
374 FCP_RSP_LEN_VALID = 0x01,
375};
376
377union ibmvfc_fcp_rsp_data {
378 struct ibmvfc_fcp_rsp_info info;
379 u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)];
380}__attribute__((packed, aligned (8)));
381
382struct ibmvfc_fcp_rsp {
383 __be64 reserved;
384 __be16 retry_delay_timer;
385 u8 flags;
386 u8 scsi_status;
387 __be32 fcp_resid;
388 __be32 fcp_sense_len;
389 __be32 fcp_rsp_len;
390 union ibmvfc_fcp_rsp_data data;
391}__attribute__((packed, aligned (8)));
392
393enum ibmvfc_cmd_flags {
394 IBMVFC_SCATTERLIST = 0x0001,
395 IBMVFC_NO_MEM_DESC = 0x0002,
396 IBMVFC_READ = 0x0004,
397 IBMVFC_WRITE = 0x0008,
398 IBMVFC_TMF = 0x0080,
399 IBMVFC_CLASS_3_ERR = 0x0100,
400};
401
402enum ibmvfc_fc_task_attr {
403 IBMVFC_SIMPLE_TASK = 0x00,
404 IBMVFC_HEAD_OF_QUEUE = 0x01,
405 IBMVFC_ORDERED_TASK = 0x02,
406 IBMVFC_ACA_TASK = 0x04,
407};
408
409enum ibmvfc_fc_tmf_flags {
410 IBMVFC_ABORT_TASK_SET = 0x02,
411 IBMVFC_LUN_RESET = 0x10,
412 IBMVFC_TARGET_RESET = 0x20,
413};
414
415struct ibmvfc_fcp_cmd_iu {
416 struct scsi_lun lun;
417 u8 crn;
418 u8 pri_task_attr;
419 u8 tmf_flags;
420 u8 add_cdb_len;
421#define IBMVFC_RDDATA 0x02
422#define IBMVFC_WRDATA 0x01
423 u8 cdb[IBMVFC_MAX_CDB_LEN];
424 __be32 xfer_len;
425}__attribute__((packed, aligned (4)));
426
427struct ibmvfc_cmd {
428 __be64 task_tag;
429 __be32 frame_type;
430 __be32 payload_len;
431 __be32 resp_len;
432 __be32 adapter_resid;
433 __be16 status;
434 __be16 error;
435 __be16 flags;
436 __be16 response_flags;
437#define IBMVFC_ADAPTER_RESID_VALID 0x01
438 __be32 cancel_key;
439 __be32 exchange_id;
440 struct srp_direct_buf ext_func;
441 struct srp_direct_buf ioba;
442 struct srp_direct_buf resp;
443 __be64 correlation;
444 __be64 tgt_scsi_id;
445 __be64 tag;
446 __be64 reserved3[2];
447 struct ibmvfc_fcp_cmd_iu iu;
448 struct ibmvfc_fcp_rsp rsp;
449}__attribute__((packed, aligned (8)));
450
451struct ibmvfc_passthru_fc_iu {
452 __be32 payload[7];
453#define IBMVFC_ADISC 0x52000000
454 __be32 response[7];
455};
456
457struct ibmvfc_passthru_iu {
458 __be64 task_tag;
459 __be32 cmd_len;
460 __be32 rsp_len;
461 __be16 status;
462 __be16 error;
463 __be32 flags;
464#define IBMVFC_FC_ELS 0x01
465#define IBMVFC_FC_CT_IU 0x02
466 __be32 cancel_key;
467#define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000
468#define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001
469 __be32 reserved;
470 struct srp_direct_buf cmd;
471 struct srp_direct_buf rsp;
472 __be64 correlation;
473 __be64 scsi_id;
474 __be64 tag;
475 __be64 reserved2[2];
476}__attribute__((packed, aligned (8)));
477
478struct ibmvfc_passthru_mad {
479 struct ibmvfc_mad_common common;
480 struct srp_direct_buf cmd_ioba;
481 struct ibmvfc_passthru_iu iu;
482 struct ibmvfc_passthru_fc_iu fc_iu;
483}__attribute__((packed, aligned (8)));
484
485struct ibmvfc_trace_start_entry {
486 u32 xfer_len;
487}__attribute__((packed));
488
489struct ibmvfc_trace_end_entry {
490 u16 status;
491 u16 error;
492 u8 fcp_rsp_flags;
493 u8 rsp_code;
494 u8 scsi_status;
495 u8 reserved;
496}__attribute__((packed));
497
498struct ibmvfc_trace_entry {
499 struct ibmvfc_event *evt;
500 u32 time;
501 u32 scsi_id;
502 u32 lun;
503 u8 fmt;
504 u8 op_code;
505 u8 tmf_flags;
506 u8 type;
507#define IBMVFC_TRC_START 0x00
508#define IBMVFC_TRC_END 0xff
509 union {
510 struct ibmvfc_trace_start_entry start;
511 struct ibmvfc_trace_end_entry end;
512 } u;
513}__attribute__((packed, aligned (8)));
514
515enum ibmvfc_crq_formats {
516 IBMVFC_CMD_FORMAT = 0x01,
517 IBMVFC_ASYNC_EVENT = 0x02,
518 IBMVFC_MAD_FORMAT = 0x04,
519};
520
521enum ibmvfc_async_event {
522 IBMVFC_AE_ELS_PLOGI = 0x0001,
523 IBMVFC_AE_ELS_LOGO = 0x0002,
524 IBMVFC_AE_ELS_PRLO = 0x0004,
525 IBMVFC_AE_SCN_NPORT = 0x0008,
526 IBMVFC_AE_SCN_GROUP = 0x0010,
527 IBMVFC_AE_SCN_DOMAIN = 0x0020,
528 IBMVFC_AE_SCN_FABRIC = 0x0040,
529 IBMVFC_AE_LINK_UP = 0x0080,
530 IBMVFC_AE_LINK_DOWN = 0x0100,
531 IBMVFC_AE_LINK_DEAD = 0x0200,
532 IBMVFC_AE_HALT = 0x0400,
533 IBMVFC_AE_RESUME = 0x0800,
534 IBMVFC_AE_ADAPTER_FAILED = 0x1000,
535};
536
537struct ibmvfc_async_desc {
538 const char *desc;
539 enum ibmvfc_async_event ae;
540 int log_level;
541};
542
543struct ibmvfc_crq {
544 volatile u8 valid;
545 volatile u8 format;
546 u8 reserved[6];
547 volatile __be64 ioba;
548}__attribute__((packed, aligned (8)));
549
550struct ibmvfc_crq_queue {
551 struct ibmvfc_crq *msgs;
552 int size, cur;
553 dma_addr_t msg_token;
554};
555
556enum ibmvfc_ae_link_state {
557 IBMVFC_AE_LS_LINK_UP = 0x01,
558 IBMVFC_AE_LS_LINK_BOUNCED = 0x02,
559 IBMVFC_AE_LS_LINK_DOWN = 0x04,
560 IBMVFC_AE_LS_LINK_DEAD = 0x08,
561};
562
563struct ibmvfc_async_crq {
564 volatile u8 valid;
565 u8 link_state;
566 u8 pad[2];
567 __be32 pad2;
568 volatile __be64 event;
569 volatile __be64 scsi_id;
570 volatile __be64 wwpn;
571 volatile __be64 node_name;
572 __be64 reserved;
573}__attribute__((packed, aligned (8)));
574
575struct ibmvfc_async_crq_queue {
576 struct ibmvfc_async_crq *msgs;
577 int size, cur;
578 dma_addr_t msg_token;
579};
580
581union ibmvfc_iu {
582 struct ibmvfc_mad_common mad_common;
583 struct ibmvfc_npiv_login_mad npiv_login;
584 struct ibmvfc_npiv_logout_mad npiv_logout;
585 struct ibmvfc_discover_targets discover_targets;
586 struct ibmvfc_port_login plogi;
587 struct ibmvfc_process_login prli;
588 struct ibmvfc_query_tgt query_tgt;
589 struct ibmvfc_implicit_logout implicit_logout;
590 struct ibmvfc_tmf tmf;
591 struct ibmvfc_cmd cmd;
592 struct ibmvfc_passthru_mad passthru;
593}__attribute__((packed, aligned (8)));
594
595enum ibmvfc_target_action {
596 IBMVFC_TGT_ACTION_NONE = 0,
597 IBMVFC_TGT_ACTION_INIT,
598 IBMVFC_TGT_ACTION_INIT_WAIT,
599 IBMVFC_TGT_ACTION_DEL_RPORT,
600 IBMVFC_TGT_ACTION_DELETED_RPORT,
601};
602
603struct ibmvfc_target {
604 struct list_head queue;
605 struct ibmvfc_host *vhost;
606 u64 scsi_id;
607 u64 new_scsi_id;
608 struct fc_rport *rport;
609 int target_id;
610 enum ibmvfc_target_action action;
611 int need_login;
612 int add_rport;
613 int init_retries;
614 int logo_rcvd;
615 u32 cancel_key;
616 struct ibmvfc_service_parms service_parms;
617 struct ibmvfc_service_parms service_parms_change;
618 struct fc_rport_identifiers ids;
619 void (*job_step) (struct ibmvfc_target *);
620 struct timer_list timer;
621 struct kref kref;
622};
623
624
625struct ibmvfc_event {
626 struct list_head queue;
627 struct ibmvfc_host *vhost;
628 struct ibmvfc_target *tgt;
629 struct scsi_cmnd *cmnd;
630 atomic_t free;
631 union ibmvfc_iu *xfer_iu;
632 void (*done) (struct ibmvfc_event *);
633 struct ibmvfc_crq crq;
634 union ibmvfc_iu iu;
635 union ibmvfc_iu *sync_iu;
636 struct srp_direct_buf *ext_list;
637 dma_addr_t ext_list_token;
638 struct completion comp;
639 struct completion *eh_comp;
640 struct timer_list timer;
641};
642
643
644struct ibmvfc_event_pool {
645 struct ibmvfc_event *events;
646 u32 size;
647 union ibmvfc_iu *iu_storage;
648 dma_addr_t iu_token;
649};
650
651enum ibmvfc_host_action {
652 IBMVFC_HOST_ACTION_NONE = 0,
653 IBMVFC_HOST_ACTION_RESET,
654 IBMVFC_HOST_ACTION_REENABLE,
655 IBMVFC_HOST_ACTION_LOGO,
656 IBMVFC_HOST_ACTION_LOGO_WAIT,
657 IBMVFC_HOST_ACTION_INIT,
658 IBMVFC_HOST_ACTION_INIT_WAIT,
659 IBMVFC_HOST_ACTION_QUERY,
660 IBMVFC_HOST_ACTION_QUERY_TGTS,
661 IBMVFC_HOST_ACTION_TGT_DEL,
662 IBMVFC_HOST_ACTION_ALLOC_TGTS,
663 IBMVFC_HOST_ACTION_TGT_INIT,
664 IBMVFC_HOST_ACTION_TGT_DEL_FAILED,
665};
666
667enum ibmvfc_host_state {
668 IBMVFC_NO_CRQ = 0,
669 IBMVFC_INITIALIZING,
670 IBMVFC_ACTIVE,
671 IBMVFC_HALTED,
672 IBMVFC_LINK_DOWN,
673 IBMVFC_LINK_DEAD,
674 IBMVFC_HOST_OFFLINE,
675};
676
677struct ibmvfc_host {
678 char name[8];
679 struct list_head queue;
680 struct Scsi_Host *host;
681 enum ibmvfc_host_state state;
682 enum ibmvfc_host_action action;
683#define IBMVFC_NUM_TRACE_INDEX_BITS 8
684#define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS)
685#define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES)
686 struct ibmvfc_trace_entry *trace;
687 u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS;
688 int num_targets;
689 struct list_head targets;
690 struct list_head sent;
691 struct list_head free;
692 struct device *dev;
693 struct ibmvfc_event_pool pool;
694 struct dma_pool *sg_pool;
695 mempool_t *tgt_pool;
696 struct ibmvfc_crq_queue crq;
697 struct ibmvfc_async_crq_queue async_crq;
698 struct ibmvfc_npiv_login login_info;
699 union ibmvfc_npiv_login_data *login_buf;
700 dma_addr_t login_buf_dma;
701 int disc_buf_sz;
702 int log_level;
703 struct ibmvfc_discover_targets_buf *disc_buf;
704 struct mutex passthru_mutex;
705 int task_set;
706 int init_retries;
707 int discovery_threads;
708 int abort_threads;
709 int client_migrated;
710 int reinit;
711 int delay_init;
712 int scan_complete;
713 int logged_in;
714 int aborting_passthru;
715 int events_to_log;
716#define IBMVFC_AE_LINKUP 0x0001
717#define IBMVFC_AE_LINKDOWN 0x0002
718#define IBMVFC_AE_RSCN 0x0004
719 dma_addr_t disc_buf_dma;
720 unsigned int partition_number;
721 char partition_name[97];
722 void (*job_step) (struct ibmvfc_host *);
723 struct task_struct *work_thread;
724 struct tasklet_struct tasklet;
725 struct work_struct rport_add_work_q;
726 wait_queue_head_t init_wait_q;
727 wait_queue_head_t work_wait_q;
728};
729
730#define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0)
731
732#define tgt_dbg(t, fmt, ...) \
733 DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
734
735#define tgt_info(t, fmt, ...) \
736 dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
737
738#define tgt_err(t, fmt, ...) \
739 dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
740
741#define tgt_log(t, level, fmt, ...) \
742 do { \
743 if ((t)->vhost->log_level >= level) \
744 tgt_err(t, fmt, ##__VA_ARGS__); \
745 } while (0)
746
747#define ibmvfc_dbg(vhost, ...) \
748 DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__))
749
750#define ibmvfc_log(vhost, level, ...) \
751 do { \
752 if ((vhost)->log_level >= level) \
753 dev_err((vhost)->dev, ##__VA_ARGS__); \
754 } while (0)
755
756#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
757#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
758
759#ifdef CONFIG_SCSI_IBMVFC_TRACE
760#define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
761#define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
762#else
763#define ibmvfc_create_trace_file(kobj, attr) 0
764#define ibmvfc_remove_trace_file(kobj, attr) do { } while (0)
765#endif
766
767#endif
768
