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[SCSI] ibmvfc: Driver version 1.0.7
[net-next-2.6.git] / drivers / scsi / ibmvscsi / ibmvfc.h
CommitLineData
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"
8da85e45
BK		 32#define IBMVFC_DRIVER_VERSION "1.0.7"
33#define IBMVFC_DRIVER_DATE "(October 16, 2009)"
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
072b91f9
BK		 41#define IBMVFC_MAX_REQUESTS_DEFAULT 100
42
43#define IBMVFC_DEBUG 0
44#define IBMVFC_MAX_TARGETS 1024
45#define IBMVFC_MAX_LUN 0xffffffff
46#define IBMVFC_MAX_SECTORS 0xffffu
47#define IBMVFC_MAX_DISC_THREADS 4
48#define IBMVFC_TGT_MEMPOOL_SZ 64
49#define IBMVFC_MAX_CMDS_PER_LUN 64
1c41fa82
BK		 50#define IBMVFC_MAX_HOST_INIT_RETRIES 6
51#define IBMVFC_MAX_TGT_INIT_RETRIES 3
072b91f9
BK		 52#define IBMVFC_DEV_LOSS_TMO (5 * 60)
53#define IBMVFC_DEFAULT_LOG_LEVEL 2
54#define IBMVFC_MAX_CDB_LEN 16
55
56/*
57 * Ensure we have resources for ERP and initialization:
58 * 1 for ERP
59 * 1 for initialization
79111d08 60 * 1 for NPIV Logout
d31429e1 61 * 2 for BSG passthru
10501e1c 62 * 2 for each discovery thread
072b91f9 63 */
d31429e1 64#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2))
072b91f9
BK		 65
66#define IBMVFC_MAD_SUCCESS 0x00
67#define IBMVFC_MAD_NOT_SUPPORTED 0xF1
68#define IBMVFC_MAD_FAILED 0xF7
69#define IBMVFC_MAD_DRIVER_FAILED 0xEE
70#define IBMVFC_MAD_CRQ_ERROR 0xEF
71
72enum ibmvfc_crq_valid {
73 IBMVFC_CRQ_CMD_RSP = 0x80,
74 IBMVFC_CRQ_INIT_RSP = 0xC0,
75 IBMVFC_CRQ_XPORT_EVENT = 0xFF,
76};
77
78enum ibmvfc_crq_format {
79 IBMVFC_CRQ_INIT = 0x01,
80 IBMVFC_CRQ_INIT_COMPLETE = 0x02,
81 IBMVFC_PARTITION_MIGRATED = 0x06,
82};
83
84enum ibmvfc_cmd_status_flags {
85 IBMVFC_FABRIC_MAPPED = 0x0001,
86 IBMVFC_VIOS_FAILURE = 0x0002,
87 IBMVFC_FC_FAILURE = 0x0004,
88 IBMVFC_FC_SCSI_ERROR = 0x0008,
89 IBMVFC_HW_EVENT_LOGGED = 0x0010,
90 IBMVFC_VIOS_LOGGED = 0x0020,
91};
92
93enum ibmvfc_fabric_mapped_errors {
94 IBMVFC_UNABLE_TO_ESTABLISH = 0x0001,
95 IBMVFC_XPORT_FAULT = 0x0002,
96 IBMVFC_CMD_TIMEOUT = 0x0003,
97 IBMVFC_ENETDOWN = 0x0004,
98 IBMVFC_HW_FAILURE = 0x0005,
99 IBMVFC_LINK_DOWN_ERR = 0x0006,
100 IBMVFC_LINK_DEAD_ERR = 0x0007,
101 IBMVFC_UNABLE_TO_REGISTER = 0x0008,
102 IBMVFC_XPORT_BUSY = 0x000A,
103 IBMVFC_XPORT_DEAD = 0x000B,
104 IBMVFC_CONFIG_ERROR = 0x000C,
105 IBMVFC_NAME_SERVER_FAIL = 0x000D,
106 IBMVFC_LINK_HALTED = 0x000E,
107 IBMVFC_XPORT_GENERAL = 0x8000,
108};
109
110enum ibmvfc_vios_errors {
111 IBMVFC_CRQ_FAILURE = 0x0001,
112 IBMVFC_SW_FAILURE = 0x0002,
113 IBMVFC_INVALID_PARAMETER = 0x0003,
114 IBMVFC_MISSING_PARAMETER = 0x0004,
115 IBMVFC_HOST_IO_BUS = 0x0005,
116 IBMVFC_TRANS_CANCELLED = 0x0006,
117 IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
118 IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
646d3857 119 IBMVFC_PLOGI_REQUIRED = 0x0010,
072b91f9
BK		 120 IBMVFC_COMMAND_FAILED = 0x8000,
121};
122
123enum ibmvfc_mad_types {
124 IBMVFC_NPIV_LOGIN = 0x0001,
125 IBMVFC_DISC_TARGETS = 0x0002,
126 IBMVFC_PORT_LOGIN = 0x0004,
127 IBMVFC_PROCESS_LOGIN = 0x0008,
128 IBMVFC_QUERY_TARGET = 0x0010,
129 IBMVFC_IMPLICIT_LOGOUT = 0x0040,
989b8545 130 IBMVFC_PASSTHRU = 0x0200,
072b91f9 131 IBMVFC_TMF_MAD = 0x0100,
79111d08 132 IBMVFC_NPIV_LOGOUT = 0x0800,
072b91f9
BK		 133};
134
135struct ibmvfc_mad_common {
136 u32 version;
137 u32 reserved;
138 u32 opcode;
139 u16 status;
140 u16 length;
141 u64 tag;
142}__attribute__((packed, aligned (8)));
143
144struct ibmvfc_npiv_login_mad {
145 struct ibmvfc_mad_common common;
146 struct srp_direct_buf buffer;
147}__attribute__((packed, aligned (8)));
148
79111d08
BK		 149struct ibmvfc_npiv_logout_mad {
150 struct ibmvfc_mad_common common;
151}__attribute__((packed, aligned (8)));
152
072b91f9
BK		 153#define IBMVFC_MAX_NAME 256
154
155struct ibmvfc_npiv_login {
156 u32 ostype;
157#define IBMVFC_OS_LINUX 0x02
158 u32 pad;
159 u64 max_dma_len;
160 u32 max_payload;
161 u32 max_response;
162 u32 partition_num;
163 u32 vfc_frame_version;
164 u16 fcp_version;
165 u16 flags;
166#define IBMVFC_CLIENT_MIGRATED 0x01
167#define IBMVFC_FLUSH_ON_HALT 0x02
168 u32 max_cmds;
169 u64 capabilities;
170#define IBMVFC_CAN_MIGRATE 0x01
171 u64 node_name;
172 struct srp_direct_buf async;
173 u8 partition_name[IBMVFC_MAX_NAME];
174 u8 device_name[IBMVFC_MAX_NAME];
175 u8 drc_name[IBMVFC_MAX_NAME];
176 u64 reserved2[2];
177}__attribute__((packed, aligned (8)));
178
179struct ibmvfc_common_svc_parms {
180 u16 fcph_version;
181 u16 b2b_credit;
182 u16 features;
183 u16 bb_rcv_sz; /* upper nibble is BB_SC_N */
184 u32 ratov;
185 u32 edtov;
186}__attribute__((packed, aligned (4)));
187
188struct ibmvfc_service_parms {
189 struct ibmvfc_common_svc_parms common;
190 u8 port_name[8];
191 u8 node_name[8];
192 u32 class1_parms[4];
193 u32 class2_parms[4];
194 u32 class3_parms[4];
195 u32 obsolete[4];
196 u32 vendor_version[4];
197 u32 services_avail[2];
198 u32 ext_len;
199 u32 reserved[30];
200 u32 clk_sync_qos[2];
201}__attribute__((packed, aligned (4)));
202
203struct ibmvfc_npiv_login_resp {
204 u32 version;
205 u16 status;
206 u16 error;
207 u32 flags;
208#define IBMVFC_NATIVE_FC 0x01
209#define IBMVFC_CAN_FLUSH_ON_HALT 0x08
210 u32 reserved;
497f9c50
BK		 211 u64 capabilities;
212#define IBMVFC_CAN_FLUSH_ON_HALT 0x08
072b91f9
BK		 213 u32 max_cmds;
214 u32 scsi_id_sz;
215 u64 max_dma_len;
216 u64 scsi_id;
217 u64 port_name;
218 u64 node_name;
219 u64 link_speed;
220 u8 partition_name[IBMVFC_MAX_NAME];
221 u8 device_name[IBMVFC_MAX_NAME];
222 u8 port_loc_code[IBMVFC_MAX_NAME];
223 u8 drc_name[IBMVFC_MAX_NAME];
224 struct ibmvfc_service_parms service_parms;
225 u64 reserved2;
226}__attribute__((packed, aligned (8)));
227
228union ibmvfc_npiv_login_data {
229 struct ibmvfc_npiv_login login;
230 struct ibmvfc_npiv_login_resp resp;
231}__attribute__((packed, aligned (8)));
232
233struct ibmvfc_discover_targets_buf {
234 u32 scsi_id[1];
235#define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff
236};
237
238struct ibmvfc_discover_targets {
239 struct ibmvfc_mad_common common;
240 struct srp_direct_buf buffer;
241 u32 flags;
242 u16 status;
243 u16 error;
244 u32 bufflen;
245 u32 num_avail;
246 u32 num_written;
247 u64 reserved[2];
248}__attribute__((packed, aligned (8)));
249
250enum ibmvfc_fc_reason {
251 IBMVFC_INVALID_ELS_CMD_CODE = 0x01,
252 IBMVFC_INVALID_VERSION = 0x02,
253 IBMVFC_LOGICAL_ERROR = 0x03,
254 IBMVFC_INVALID_CT_IU_SIZE = 0x04,
255 IBMVFC_LOGICAL_BUSY = 0x05,
256 IBMVFC_PROTOCOL_ERROR = 0x07,
257 IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09,
258 IBMVFC_CMD_NOT_SUPPORTED = 0x0B,
259 IBMVFC_SERVER_NOT_AVAIL = 0x0D,
260 IBMVFC_CMD_IN_PROGRESS = 0x0E,
261 IBMVFC_VENDOR_SPECIFIC = 0xFF,
262};
263
264enum ibmvfc_fc_type {
265 IBMVFC_FABRIC_REJECT = 0x01,
266 IBMVFC_PORT_REJECT = 0x02,
267 IBMVFC_LS_REJECT = 0x03,
268 IBMVFC_FABRIC_BUSY = 0x04,
269 IBMVFC_PORT_BUSY = 0x05,
270 IBMVFC_BASIC_REJECT = 0x06,
271};
272
273enum ibmvfc_gs_explain {
274 IBMVFC_PORT_NAME_NOT_REG = 0x02,
275};
276
277struct ibmvfc_port_login {
278 struct ibmvfc_mad_common common;
279 u64 scsi_id;
280 u16 reserved;
281 u16 fc_service_class;
282 u32 blksz;
283 u32 hdr_per_blk;
284 u16 status;
285 u16 error; /* also fc_reason */
286 u16 fc_explain;
287 u16 fc_type;
288 u32 reserved2;
289 struct ibmvfc_service_parms service_parms;
290 struct ibmvfc_service_parms service_parms_change;
291 u64 reserved3[2];
292}__attribute__((packed, aligned (8)));
293
294struct ibmvfc_prli_svc_parms {
295 u8 type;
296#define IBMVFC_SCSI_FCP_TYPE 0x08
297 u8 type_ext;
298 u16 flags;
299#define IBMVFC_PRLI_ORIG_PA_VALID 0x8000
300#define IBMVFC_PRLI_RESP_PA_VALID 0x4000
301#define IBMVFC_PRLI_EST_IMG_PAIR 0x2000
302 u32 orig_pa;
303 u32 resp_pa;
304 u32 service_parms;
305#define IBMVFC_PRLI_TASK_RETRY 0x00000200
306#define IBMVFC_PRLI_RETRY 0x00000100
307#define IBMVFC_PRLI_DATA_OVERLAY 0x00000040
308#define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020
309#define IBMVFC_PRLI_TARGET_FUNC 0x00000010
310#define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002
311#define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001
312}__attribute__((packed, aligned (4)));
313
314struct ibmvfc_process_login {
315 struct ibmvfc_mad_common common;
316 u64 scsi_id;
317 struct ibmvfc_prli_svc_parms parms;
318 u8 reserved[48];
319 u16 status;
320 u16 error; /* also fc_reason */
321 u32 reserved2;
322 u64 reserved3[2];
323}__attribute__((packed, aligned (8)));
324
325struct ibmvfc_query_tgt {
326 struct ibmvfc_mad_common common;
327 u64 wwpn;
328 u64 scsi_id;
329 u16 status;
330 u16 error;
331 u16 fc_explain;
332 u16 fc_type;
333 u64 reserved[2];
334}__attribute__((packed, aligned (8)));
335
336struct ibmvfc_implicit_logout {
337 struct ibmvfc_mad_common common;
338 u64 old_scsi_id;
339 u64 reserved[2];
340}__attribute__((packed, aligned (8)));
341
342struct ibmvfc_tmf {
343 struct ibmvfc_mad_common common;
344 u64 scsi_id;
345 struct scsi_lun lun;
346 u32 flags;
347#define IBMVFC_TMF_ABORT_TASK 0x02
348#define IBMVFC_TMF_ABORT_TASK_SET 0x04
349#define IBMVFC_TMF_LUN_RESET 0x10
350#define IBMVFC_TMF_TGT_RESET 0x20
351#define IBMVFC_TMF_LUA_VALID 0x40
352 u32 cancel_key;
353 u32 my_cancel_key;
072b91f9
BK		 354 u32 pad;
355 u64 reserved[2];
356}__attribute__((packed, aligned (8)));
357
358enum ibmvfc_fcp_rsp_info_codes {
359 RSP_NO_FAILURE = 0x00,
360 RSP_TMF_REJECTED = 0x04,
361 RSP_TMF_FAILED = 0x05,
362 RSP_TMF_INVALID_LUN = 0x09,
363};
364
365struct ibmvfc_fcp_rsp_info {
366 u16 reserved;
367 u8 rsp_code;
368 u8 reserved2[4];
369}__attribute__((packed, aligned (2)));
370
371enum ibmvfc_fcp_rsp_flags {
372 FCP_BIDI_RSP = 0x80,
373 FCP_BIDI_READ_RESID_UNDER = 0x40,
374 FCP_BIDI_READ_RESID_OVER = 0x20,
375 FCP_CONF_REQ = 0x10,
376 FCP_RESID_UNDER = 0x08,
377 FCP_RESID_OVER = 0x04,
378 FCP_SNS_LEN_VALID = 0x02,
379 FCP_RSP_LEN_VALID = 0x01,
380};
381
382union ibmvfc_fcp_rsp_data {
383 struct ibmvfc_fcp_rsp_info info;
384 u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)];
385}__attribute__((packed, aligned (8)));
386
387struct ibmvfc_fcp_rsp {
388 u64 reserved;
389 u16 retry_delay_timer;
390 u8 flags;
391 u8 scsi_status;
392 u32 fcp_resid;
393 u32 fcp_sense_len;
394 u32 fcp_rsp_len;
395 union ibmvfc_fcp_rsp_data data;
396}__attribute__((packed, aligned (8)));
397
398enum ibmvfc_cmd_flags {
399 IBMVFC_SCATTERLIST = 0x0001,
400 IBMVFC_NO_MEM_DESC = 0x0002,
401 IBMVFC_READ = 0x0004,
402 IBMVFC_WRITE = 0x0008,
403 IBMVFC_TMF = 0x0080,
404 IBMVFC_CLASS_3_ERR = 0x0100,
405};
406
407enum ibmvfc_fc_task_attr {
408 IBMVFC_SIMPLE_TASK = 0x00,
409 IBMVFC_HEAD_OF_QUEUE = 0x01,
410 IBMVFC_ORDERED_TASK = 0x02,
411 IBMVFC_ACA_TASK = 0x04,
412};
413
414enum ibmvfc_fc_tmf_flags {
415 IBMVFC_ABORT_TASK_SET = 0x02,
416 IBMVFC_LUN_RESET = 0x10,
417 IBMVFC_TARGET_RESET = 0x20,
418};
419
420struct ibmvfc_fcp_cmd_iu {
421 struct scsi_lun lun;
422 u8 crn;
423 u8 pri_task_attr;
424 u8 tmf_flags;
425 u8 add_cdb_len;
426#define IBMVFC_RDDATA 0x02
427#define IBMVFC_WRDATA 0x01
428 u8 cdb[IBMVFC_MAX_CDB_LEN];
429 u32 xfer_len;
430}__attribute__((packed, aligned (4)));
431
432struct ibmvfc_cmd {
433 u64 task_tag;
434 u32 frame_type;
435 u32 payload_len;
436 u32 resp_len;
437 u32 adapter_resid;
438 u16 status;
439 u16 error;
440 u16 flags;
441 u16 response_flags;
442#define IBMVFC_ADAPTER_RESID_VALID 0x01
443 u32 cancel_key;
444 u32 exchange_id;
445 struct srp_direct_buf ext_func;
446 struct srp_direct_buf ioba;
447 struct srp_direct_buf resp;
448 u64 correlation;
449 u64 tgt_scsi_id;
450 u64 tag;
451 u64 reserved3[2];
452 struct ibmvfc_fcp_cmd_iu iu;
453 struct ibmvfc_fcp_rsp rsp;
454}__attribute__((packed, aligned (8)));
455
989b8545
BK		 456struct ibmvfc_passthru_fc_iu {
457 u32 payload[7];
458#define IBMVFC_ADISC 0x52000000
459 u32 response[7];
460};
461
462struct ibmvfc_passthru_iu {
463 u64 task_tag;
464 u32 cmd_len;
465 u32 rsp_len;
466 u16 status;
467 u16 error;
468 u32 flags;
469#define IBMVFC_FC_ELS 0x01
d31429e1 470#define IBMVFC_FC_CT_IU 0x02
989b8545 471 u32 cancel_key;
d31429e1
BK		 472#define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000
473#define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001
989b8545
BK		 474 u32 reserved;
475 struct srp_direct_buf cmd;
476 struct srp_direct_buf rsp;
477 u64 correlation;
478 u64 scsi_id;
479 u64 tag;
480 u64 reserved2[2];
481}__attribute__((packed, aligned (8)));
482
483struct ibmvfc_passthru_mad {
484 struct ibmvfc_mad_common common;
485 struct srp_direct_buf cmd_ioba;
486 struct ibmvfc_passthru_iu iu;
487 struct ibmvfc_passthru_fc_iu fc_iu;
488}__attribute__((packed, aligned (8)));
489
072b91f9
BK		 490struct ibmvfc_trace_start_entry {
491 u32 xfer_len;
492}__attribute__((packed));
493
494struct ibmvfc_trace_end_entry {
495 u16 status;
496 u16 error;
497 u8 fcp_rsp_flags;
498 u8 rsp_code;
499 u8 scsi_status;
500 u8 reserved;
501}__attribute__((packed));
502
503struct ibmvfc_trace_entry {
504 struct ibmvfc_event *evt;
505 u32 time;
506 u32 scsi_id;
507 u32 lun;
508 u8 fmt;
509 u8 op_code;
510 u8 tmf_flags;
511 u8 type;
512#define IBMVFC_TRC_START 0x00
513#define IBMVFC_TRC_END 0xff
514 union {
515 struct ibmvfc_trace_start_entry start;
516 struct ibmvfc_trace_end_entry end;
517 } u;
518}__attribute__((packed, aligned (8)));
519
520enum ibmvfc_crq_formats {
521 IBMVFC_CMD_FORMAT = 0x01,
522 IBMVFC_ASYNC_EVENT = 0x02,
523 IBMVFC_MAD_FORMAT = 0x04,
524};
525
526enum ibmvfc_async_event {
527 IBMVFC_AE_ELS_PLOGI = 0x0001,
528 IBMVFC_AE_ELS_LOGO = 0x0002,
529 IBMVFC_AE_ELS_PRLO = 0x0004,
530 IBMVFC_AE_SCN_NPORT = 0x0008,
531 IBMVFC_AE_SCN_GROUP = 0x0010,
532 IBMVFC_AE_SCN_DOMAIN = 0x0020,
533 IBMVFC_AE_SCN_FABRIC = 0x0040,
534 IBMVFC_AE_LINK_UP = 0x0080,
535 IBMVFC_AE_LINK_DOWN = 0x0100,
536 IBMVFC_AE_LINK_DEAD = 0x0200,
537 IBMVFC_AE_HALT = 0x0400,
538 IBMVFC_AE_RESUME = 0x0800,
539 IBMVFC_AE_ADAPTER_FAILED = 0x1000,
540};
541
542struct ibmvfc_crq {
5919ce29
BK		 543 volatile u8 valid;
544 volatile u8 format;
072b91f9 545 u8 reserved[6];
5919ce29 546 volatile u64 ioba;
072b91f9
BK		 547}__attribute__((packed, aligned (8)));
548
549struct ibmvfc_crq_queue {
550 struct ibmvfc_crq *msgs;
551 int size, cur;
552 dma_addr_t msg_token;
553};
554
497f9c50
BK		 555enum ibmvfc_ae_link_state {
556 IBMVFC_AE_LS_LINK_UP = 0x01,
557 IBMVFC_AE_LS_LINK_BOUNCED = 0x02,
558 IBMVFC_AE_LS_LINK_DOWN = 0x04,
559 IBMVFC_AE_LS_LINK_DEAD = 0x08,
560};
561
072b91f9 562struct ibmvfc_async_crq {
5919ce29 563 volatile u8 valid;
497f9c50
BK		 564 u8 link_state;
565 u8 pad[2];
072b91f9 566 u32 pad2;
5919ce29
BK		 567 volatile u64 event;
568 volatile u64 scsi_id;
569 volatile u64 wwpn;
570 volatile u64 node_name;
072b91f9
BK		 571 u64 reserved;
572}__attribute__((packed, aligned (8)));
573
574struct ibmvfc_async_crq_queue {
575 struct ibmvfc_async_crq *msgs;
576 int size, cur;
577 dma_addr_t msg_token;
578};
579
580union ibmvfc_iu {
581 struct ibmvfc_mad_common mad_common;
582 struct ibmvfc_npiv_login_mad npiv_login;
79111d08 583 struct ibmvfc_npiv_logout_mad npiv_logout;
072b91f9
BK		 584 struct ibmvfc_discover_targets discover_targets;
585 struct ibmvfc_port_login plogi;
586 struct ibmvfc_process_login prli;
587 struct ibmvfc_query_tgt query_tgt;
588 struct ibmvfc_implicit_logout implicit_logout;
589 struct ibmvfc_tmf tmf;
590 struct ibmvfc_cmd cmd;
989b8545 591 struct ibmvfc_passthru_mad passthru;
072b91f9
BK		 592}__attribute__((packed, aligned (8)));
593
594enum ibmvfc_target_action {
595 IBMVFC_TGT_ACTION_NONE = 0,
596 IBMVFC_TGT_ACTION_INIT,
597 IBMVFC_TGT_ACTION_INIT_WAIT,
072b91f9
BK		 598 IBMVFC_TGT_ACTION_DEL_RPORT,
599};
600
601struct ibmvfc_target {
602 struct list_head queue;
603 struct ibmvfc_host *vhost;
604 u64 scsi_id;
605 u64 new_scsi_id;
606 struct fc_rport *rport;
607 int target_id;
608 enum ibmvfc_target_action action;
609 int need_login;
43c8da90 610 int add_rport;
072b91f9 611 int init_retries;
017b2ae3 612 int logo_rcvd;
10501e1c 613 u32 cancel_key;
072b91f9
BK		 614 struct ibmvfc_service_parms service_parms;
615 struct ibmvfc_service_parms service_parms_change;
616 struct fc_rport_identifiers ids;
617 void (*job_step) (struct ibmvfc_target *);
10501e1c 618 struct timer_list timer;
072b91f9
BK		 619 struct kref kref;
620};
621
622/* a unit of work for the hosting partition */
623struct ibmvfc_event {
624 struct list_head queue;
625 struct ibmvfc_host *vhost;
626 struct ibmvfc_target *tgt;
627 struct scsi_cmnd *cmnd;
628 atomic_t free;
629 union ibmvfc_iu *xfer_iu;
630 void (*done) (struct ibmvfc_event *);
631 struct ibmvfc_crq crq;
632 union ibmvfc_iu iu;
633 union ibmvfc_iu *sync_iu;
634 struct srp_direct_buf *ext_list;
635 dma_addr_t ext_list_token;
636 struct completion comp;
ad8dcffa 637 struct completion *eh_comp;
072b91f9
BK		 638 struct timer_list timer;
639};
640
641/* a pool of event structs for use */
642struct ibmvfc_event_pool {
643 struct ibmvfc_event *events;
644 u32 size;
645 union ibmvfc_iu *iu_storage;
646 dma_addr_t iu_token;
647};
648
649enum ibmvfc_host_action {
650 IBMVFC_HOST_ACTION_NONE = 0,
79111d08
BK		 651 IBMVFC_HOST_ACTION_LOGO,
652 IBMVFC_HOST_ACTION_LOGO_WAIT,
072b91f9
BK		 653 IBMVFC_HOST_ACTION_INIT,
654 IBMVFC_HOST_ACTION_INIT_WAIT,
655 IBMVFC_HOST_ACTION_QUERY,
656 IBMVFC_HOST_ACTION_QUERY_TGTS,
657 IBMVFC_HOST_ACTION_TGT_DEL,
658 IBMVFC_HOST_ACTION_ALLOC_TGTS,
659 IBMVFC_HOST_ACTION_TGT_INIT,
10e79499 660 IBMVFC_HOST_ACTION_TGT_DEL_FAILED,
072b91f9
BK		 661};
662
663enum ibmvfc_host_state {
664 IBMVFC_NO_CRQ = 0,
665 IBMVFC_INITIALIZING,
666 IBMVFC_ACTIVE,
667 IBMVFC_HALTED,
668 IBMVFC_LINK_DOWN,
669 IBMVFC_LINK_DEAD,
670 IBMVFC_HOST_OFFLINE,
671};
672
673struct ibmvfc_host {
674 char name[8];
675 struct list_head queue;
676 struct Scsi_Host *host;
677 enum ibmvfc_host_state state;
678 enum ibmvfc_host_action action;
679#define IBMVFC_NUM_TRACE_INDEX_BITS 8
680#define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS)
681#define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES)
682 struct ibmvfc_trace_entry *trace;
683 u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS;
684 int num_targets;
685 struct list_head targets;
686 struct list_head sent;
687 struct list_head free;
688 struct device *dev;
689 struct ibmvfc_event_pool pool;
690 struct dma_pool *sg_pool;
691 mempool_t *tgt_pool;
692 struct ibmvfc_crq_queue crq;
693 struct ibmvfc_async_crq_queue async_crq;
694 struct ibmvfc_npiv_login login_info;
695 union ibmvfc_npiv_login_data *login_buf;
696 dma_addr_t login_buf_dma;
697 int disc_buf_sz;
698 int log_level;
699 struct ibmvfc_discover_targets_buf *disc_buf;
d31429e1 700 struct mutex passthru_mutex;
072b91f9
BK		 701 int task_set;
702 int init_retries;
703 int discovery_threads;
10501e1c 704 int abort_threads;
072b91f9
BK		 705 int client_migrated;
706 int reinit;
1c41fa82 707 int delay_init;
43c8da90 708 int scan_complete;
79111d08 709 int logged_in;
d31429e1 710 int aborting_passthru;
072b91f9
BK		 711 int events_to_log;
712#define IBMVFC_AE_LINKUP 0x0001
713#define IBMVFC_AE_LINKDOWN 0x0002
714#define IBMVFC_AE_RSCN 0x0004
715 dma_addr_t disc_buf_dma;
716 unsigned int partition_number;
717 char partition_name[97];
718 void (*job_step) (struct ibmvfc_host *);
719 struct task_struct *work_thread;
039a0898 720 struct tasklet_struct tasklet;
43c8da90 721 struct work_struct rport_add_work_q;
072b91f9
BK		 722 wait_queue_head_t init_wait_q;
723 wait_queue_head_t work_wait_q;
724};
725
726#define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0)
727
728#define tgt_dbg(t, fmt, ...) \
775a42ec 729 DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
072b91f9 730
989b8545 731#define tgt_info(t, fmt, ...) \
775a42ec 732 dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
989b8545 733
072b91f9 734#define tgt_err(t, fmt, ...) \
775a42ec 735 dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
072b91f9 736
7d0e4622
BK		 737#define tgt_log(t, level, fmt, ...) \
738 do { \
739 if ((t)->vhost->log_level >= level) \
740 tgt_err(t, fmt, ##__VA_ARGS__); \
741 } while (0)
742
072b91f9
BK		 743#define ibmvfc_dbg(vhost, ...) \
744 DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__))
745
746#define ibmvfc_log(vhost, level, ...) \
747 do { \
596891ac 748 if ((vhost)->log_level >= level) \
072b91f9
BK		 749 dev_err((vhost)->dev, ##__VA_ARGS__); \
750 } while (0)
751
cadbd4a5
HH		 752#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
753#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
072b91f9
BK		 754
755#ifdef CONFIG_SCSI_IBMVFC_TRACE
756#define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
757#define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
758#else
759#define ibmvfc_create_trace_file(kobj, attr) 0
760#define ibmvfc_remove_trace_file(kobj, attr) do { } while (0)
761#endif
762
763#endif
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