projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
qla2xxx: kill sessions/log out initiator on RSCN and port down events
[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_target.h
CommitLineData
2d70c103
NB		 1/*
2 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
3 * Copyright (C) 2004 - 2005 Leonid Stoljar
4 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
5 * Copyright (C) 2007 - 2010 ID7 Ltd.
6 *
7 * Forward port and refactoring to modern qla2xxx and target/configfs
8 *
9 * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
10 *
11 * Additional file for the target driver support.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 */
23/*
24 * This is the global def file that is useful for including from the
25 * target portion.
26 */
27
28#ifndef __QLA_TARGET_H
29#define __QLA_TARGET_H
30
31#include "qla_def.h"
32
33/*
34 * Must be changed on any change in any initiator visible interfaces or
35 * data in the target add-on
36 */
37#define QLA2XXX_TARGET_MAGIC 269
38
39/*
40 * Must be changed on any change in any target visible interfaces or
41 * data in the initiator
42 */
43#define QLA2XXX_INITIATOR_MAGIC 57222
44
45#define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive"
46#define QLA2XXX_INI_MODE_STR_DISABLED "disabled"
47#define QLA2XXX_INI_MODE_STR_ENABLED "enabled"
48
49#define QLA2XXX_INI_MODE_EXCLUSIVE 0
50#define QLA2XXX_INI_MODE_DISABLED 1
51#define QLA2XXX_INI_MODE_ENABLED 2
52
53#define QLA2XXX_COMMAND_COUNT_INIT 250
54#define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
55
56/*
57 * Used to mark which completion handles (for RIO Status's) are for CTIO's
58 * vs. regular (non-target) info. This is checked for in
59 * qla2x00_process_response_queue() to see if a handle coming back in a
60 * multi-complete should come to the tgt driver or be handled there by qla2xxx
61 */
62#define CTIO_COMPLETION_HANDLE_MARK BIT_29
8d93f550
CD		 63#if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
64#error "CTIO_COMPLETION_HANDLE_MARK not larger than "
65 "DEFAULT_OUTSTANDING_COMMANDS"
2d70c103
NB		 66#endif
67#define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
68
69/* Used to mark CTIO as intermediate */
70#define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30
71
72#ifndef OF_SS_MODE_0
73/*
74 * ISP target entries - Flags bit definitions.
75 */
76#define OF_SS_MODE_0 0
77#define OF_SS_MODE_1 1
78#define OF_SS_MODE_2 2
79#define OF_SS_MODE_3 3
80
81#define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */
82#define OF_DATA_IN BIT_6 /* Data in to initiator */
83 /* (data from target to initiator) */
84#define OF_DATA_OUT BIT_7 /* Data out from initiator */
85 /* (data from initiator to target) */
86#define OF_NO_DATA (BIT_7 | BIT_6)
87#define OF_INC_RC BIT_8 /* Increment command resource count */
88#define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */
89#define OF_CONF_REQ BIT_13 /* Confirmation Requested */
90#define OF_TERM_EXCH BIT_14 /* Terminate exchange */
91#define OF_SSTS BIT_15 /* Send SCSI status */
92#endif
93
94#ifndef QLA_TGT_DATASEGS_PER_CMD32
95#define QLA_TGT_DATASEGS_PER_CMD32 3
96#define QLA_TGT_DATASEGS_PER_CONT32 7
97#define QLA_TGT_MAX_SG32(ql) \
98 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
99 QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
100
101#define QLA_TGT_DATASEGS_PER_CMD64 2
102#define QLA_TGT_DATASEGS_PER_CONT64 5
103#define QLA_TGT_MAX_SG64(ql) \
104 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
105 QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
106#endif
107
108#ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
109#define QLA_TGT_DATASEGS_PER_CMD_24XX 1
110#define QLA_TGT_DATASEGS_PER_CONT_24XX 5
111#define QLA_TGT_MAX_SG_24XX(ql) \
112 (min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
113 QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
114#endif
115#endif
116
117#define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
118 ? le16_to_cpu((iocb)->u.isp2x.target.extended) \
119 : (uint16_t)(iocb)->u.isp2x.target.id.standard)
120
121#ifndef IMMED_NOTIFY_TYPE
122#define IMMED_NOTIFY_TYPE 0x0D /* Immediate notify entry. */
123/*
124 * ISP queue - immediate notify entry structure definition.
125 * This is sent by the ISP to the Target driver.
126 * This IOCB would have report of events sent by the
127 * initiator, that needs to be handled by the target
128 * driver immediately.
129 */
130struct imm_ntfy_from_isp {
131 uint8_t entry_type; /* Entry type. */
132 uint8_t entry_count; /* Entry count. */
133 uint8_t sys_define; /* System defined. */
134 uint8_t entry_status; /* Entry Status. */
135 union {
136 struct {
137 uint32_t sys_define_2; /* System defined. */
138 target_id_t target;
139 uint16_t lun;
140 uint8_t target_id;
141 uint8_t reserved_1;
142 uint16_t status_modifier;
143 uint16_t status;
144 uint16_t task_flags;
145 uint16_t seq_id;
146 uint16_t srr_rx_id;
147 uint32_t srr_rel_offs;
148 uint16_t srr_ui;
149#define SRR_IU_DATA_IN 0x1
150#define SRR_IU_DATA_OUT 0x5
151#define SRR_IU_STATUS 0x7
152 uint16_t srr_ox_id;
153 uint8_t reserved_2[28];
154 } isp2x;
155 struct {
156 uint32_t reserved;
157 uint16_t nport_handle;
158 uint16_t reserved_2;
159 uint16_t flags;
160#define NOTIFY24XX_FLAGS_GLOBAL_TPRLO BIT_1
161#define NOTIFY24XX_FLAGS_PUREX_IOCB BIT_0
162 uint16_t srr_rx_id;
163 uint16_t status;
164 uint8_t status_subcode;
aa230bc5 165 uint8_t fw_handle;
2d70c103
NB		 166 uint32_t exchange_address;
167 uint32_t srr_rel_offs;
168 uint16_t srr_ui;
169 uint16_t srr_ox_id;
170 uint8_t reserved_4[19];
171 uint8_t vp_index;
172 uint32_t reserved_5;
173 uint8_t port_id[3];
174 uint8_t reserved_6;
175 } isp24;
176 } u;
177 uint16_t reserved_7;
178 uint16_t ox_id;
179} __packed;
180#endif
181
182#ifndef NOTIFY_ACK_TYPE
183#define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
184/*
185 * ISP queue - notify acknowledge entry structure definition.
186 * This is sent to the ISP from the target driver.
187 */
188struct nack_to_isp {
189 uint8_t entry_type; /* Entry type. */
190 uint8_t entry_count; /* Entry count. */
191 uint8_t sys_define; /* System defined. */
192 uint8_t entry_status; /* Entry Status. */
193 union {
194 struct {
195 uint32_t sys_define_2; /* System defined. */
196 target_id_t target;
197 uint8_t target_id;
198 uint8_t reserved_1;
199 uint16_t flags;
200 uint16_t resp_code;
201 uint16_t status;
202 uint16_t task_flags;
203 uint16_t seq_id;
204 uint16_t srr_rx_id;
205 uint32_t srr_rel_offs;
206 uint16_t srr_ui;
207 uint16_t srr_flags;
208 uint16_t srr_reject_code;
209 uint8_t srr_reject_vendor_uniq;
210 uint8_t srr_reject_code_expl;
211 uint8_t reserved_2[24];
212 } isp2x;
213 struct {
214 uint32_t handle;
215 uint16_t nport_handle;
216 uint16_t reserved_1;
217 uint16_t flags;
218 uint16_t srr_rx_id;
219 uint16_t status;
220 uint8_t status_subcode;
aa230bc5 221 uint8_t fw_handle;
2d70c103
NB		 222 uint32_t exchange_address;
223 uint32_t srr_rel_offs;
224 uint16_t srr_ui;
225 uint16_t srr_flags;
226 uint8_t reserved_4[19];
227 uint8_t vp_index;
228 uint8_t srr_reject_vendor_uniq;
229 uint8_t srr_reject_code_expl;
230 uint8_t srr_reject_code;
231 uint8_t reserved_5[5];
232 } isp24;
233 } u;
234 uint8_t reserved[2];
235 uint16_t ox_id;
236} __packed;
237#define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0
238#define NOTIFY_ACK_SRR_FLAGS_REJECT 1
239
240#define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9
241
242#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0
243#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a
244
245#define NOTIFY_ACK_SUCCESS 0x01
246#endif
247
248#ifndef ACCEPT_TGT_IO_TYPE
249#define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
250#endif
251
252#ifndef CONTINUE_TGT_IO_TYPE
253#define CONTINUE_TGT_IO_TYPE 0x17
254/*
255 * ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure.
256 * This structure is sent to the ISP 2xxx from target driver.
257 */
258struct ctio_to_2xxx {
259 uint8_t entry_type; /* Entry type. */
260 uint8_t entry_count; /* Entry count. */
261 uint8_t sys_define; /* System defined. */
262 uint8_t entry_status; /* Entry Status. */
263 uint32_t handle; /* System defined handle */
264 target_id_t target;
265 uint16_t rx_id;
266 uint16_t flags;
267 uint16_t status;
268 uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */
269 uint16_t dseg_count; /* Data segment count. */
270 uint32_t relative_offset;
271 uint32_t residual;
272 uint16_t reserved_1[3];
273 uint16_t scsi_status;
274 uint32_t transfer_length;
275 uint32_t dseg_0_address; /* Data segment 0 address. */
276 uint32_t dseg_0_length; /* Data segment 0 length. */
277 uint32_t dseg_1_address; /* Data segment 1 address. */
278 uint32_t dseg_1_length; /* Data segment 1 length. */
279 uint32_t dseg_2_address; /* Data segment 2 address. */
280 uint32_t dseg_2_length; /* Data segment 2 length. */
281} __packed;
282#define ATIO_PATH_INVALID 0x07
283#define ATIO_CANT_PROV_CAP 0x16
284#define ATIO_CDB_VALID 0x3D
285
286#define ATIO_EXEC_READ BIT_1
287#define ATIO_EXEC_WRITE BIT_0
288#endif
289
290#ifndef CTIO_A64_TYPE
291#define CTIO_A64_TYPE 0x1F
292#define CTIO_SUCCESS 0x01
293#define CTIO_ABORTED 0x02
294#define CTIO_INVALID_RX_ID 0x08
295#define CTIO_TIMEOUT 0x0B
f83adb61 296#define CTIO_DIF_ERROR 0x0C /* DIF error detected */
2d70c103
NB		 297#define CTIO_LIP_RESET 0x0E
298#define CTIO_TARGET_RESET 0x17
299#define CTIO_PORT_UNAVAILABLE 0x28
300#define CTIO_PORT_LOGGED_OUT 0x29
301#define CTIO_PORT_CONF_CHANGED 0x2A
302#define CTIO_SRR_RECEIVED 0x45
303#endif
304
305#ifndef CTIO_RET_TYPE
306#define CTIO_RET_TYPE 0x17 /* CTIO return entry */
307#define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
308
309struct fcp_hdr {
310 uint8_t r_ctl;
311 uint8_t d_id[3];
312 uint8_t cs_ctl;
313 uint8_t s_id[3];
314 uint8_t type;
315 uint8_t f_ctl[3];
316 uint8_t seq_id;
317 uint8_t df_ctl;
318 uint16_t seq_cnt;
c7ee3bd4 319 __be16 ox_id;
2d70c103
NB		 320 uint16_t rx_id;
321 uint32_t parameter;
322} __packed;
323
324struct fcp_hdr_le {
325 uint8_t d_id[3];
326 uint8_t r_ctl;
327 uint8_t s_id[3];
328 uint8_t cs_ctl;
329 uint8_t f_ctl[3];
330 uint8_t type;
331 uint16_t seq_cnt;
332 uint8_t df_ctl;
333 uint8_t seq_id;
334 uint16_t rx_id;
335 uint16_t ox_id;
336 uint32_t parameter;
337} __packed;
338
339#define F_CTL_EXCH_CONTEXT_RESP BIT_23
340#define F_CTL_SEQ_CONTEXT_RESIP BIT_22
341#define F_CTL_LAST_SEQ BIT_20
342#define F_CTL_END_SEQ BIT_19
343#define F_CTL_SEQ_INITIATIVE BIT_16
344
345#define R_CTL_BASIC_LINK_SERV 0x80
346#define R_CTL_B_ACC 0x4
347#define R_CTL_B_RJT 0x5
348
349struct atio7_fcp_cmnd {
350 uint64_t lun;
351 uint8_t cmnd_ref;
352 uint8_t task_attr:3;
353 uint8_t reserved:5;
354 uint8_t task_mgmt_flags;
355#define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
356#define FCP_CMND_TASK_MGMT_TARGET_RESET 5
357#define FCP_CMND_TASK_MGMT_LU_RESET 4
358#define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
359#define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
360 uint8_t wrdata:1;
361 uint8_t rddata:1;
362 uint8_t add_cdb_len:6;
363 uint8_t cdb[16];
364 /*
365 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
366 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
367 * BUILD_BUG_ON in qlt_init().
368 */
369 uint8_t add_cdb[4];
370 /* uint32_t data_length; */
371} __packed;
372
373/*
374 * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
375 * This is sent from the ISP to the target driver.
376 */
377struct atio_from_isp {
378 union {
379 struct {
380 uint16_t entry_hdr;
381 uint8_t sys_define; /* System defined. */
382 uint8_t entry_status; /* Entry Status. */
383 uint32_t sys_define_2; /* System defined. */
384 target_id_t target;
385 uint16_t rx_id;
386 uint16_t flags;
387 uint16_t status;
388 uint8_t command_ref;
389 uint8_t task_codes;
390 uint8_t task_flags;
391 uint8_t execution_codes;
392 uint8_t cdb[MAX_CMDSZ];
393 uint32_t data_length;
394 uint16_t lun;
395 uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
396 uint16_t reserved_32[6];
397 uint16_t ox_id;
398 } isp2x;
399 struct {
400 uint16_t entry_hdr;
401 uint8_t fcp_cmnd_len_low;
402 uint8_t fcp_cmnd_len_high:4;
403 uint8_t attr:4;
404 uint32_t exchange_addr;
405#define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
406 struct fcp_hdr fcp_hdr;
407 struct atio7_fcp_cmnd fcp_cmnd;
408 } isp24;
409 struct {
410 uint8_t entry_type; /* Entry type. */
411 uint8_t entry_count; /* Entry count. */
412 uint8_t data[58];
413 uint32_t signature;
414#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
415 } raw;
416 } u;
417} __packed;
418
419#define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
420
421/*
422 * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
423 * This structure is sent to the ISP 24xx from the target driver.
424 */
425
426struct ctio7_to_24xx {
427 uint8_t entry_type; /* Entry type. */
428 uint8_t entry_count; /* Entry count. */
429 uint8_t sys_define; /* System defined. */
430 uint8_t entry_status; /* Entry Status. */
431 uint32_t handle; /* System defined handle */
432 uint16_t nport_handle;
433#define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
434 uint16_t timeout;
435 uint16_t dseg_count; /* Data segment count. */
436 uint8_t vp_index;
437 uint8_t add_flags;
438 uint8_t initiator_id[3];
439 uint8_t reserved;
440 uint32_t exchange_addr;
441 union {
442 struct {
443 uint16_t reserved1;
c7ee3bd4 444 __le16 flags;
2d70c103 445 uint32_t residual;
33a5fcee 446 __le16 ox_id;
2d70c103
NB		 447 uint16_t scsi_status;
448 uint32_t relative_offset;
449 uint32_t reserved2;
450 uint32_t transfer_length;
451 uint32_t reserved3;
452 /* Data segment 0 address. */
453 uint32_t dseg_0_address[2];
454 /* Data segment 0 length. */
455 uint32_t dseg_0_length;
456 } status0;
457 struct {
458 uint16_t sense_length;
459 uint16_t flags;
460 uint32_t residual;
33a5fcee 461 __le16 ox_id;
2d70c103
NB		 462 uint16_t scsi_status;
463 uint16_t response_len;
464 uint16_t reserved;
465 uint8_t sense_data[24];
466 } status1;
467 } u;
468} __packed;
469
470/*
471 * ISP queue - CTIO type 7 from ISP 24xx to target driver
472 * returned entry structure.
473 */
474struct ctio7_from_24xx {
475 uint8_t entry_type; /* Entry type. */
476 uint8_t entry_count; /* Entry count. */
477 uint8_t sys_define; /* System defined. */
478 uint8_t entry_status; /* Entry Status. */
479 uint32_t handle; /* System defined handle */
480 uint16_t status;
481 uint16_t timeout;
482 uint16_t dseg_count; /* Data segment count. */
483 uint8_t vp_index;
484 uint8_t reserved1[5];
485 uint32_t exchange_address;
486 uint16_t reserved2;
487 uint16_t flags;
488 uint32_t residual;
489 uint16_t ox_id;
490 uint16_t reserved3;
491 uint32_t relative_offset;
492 uint8_t reserved4[24];
493} __packed;
494
495/* CTIO7 flags values */
496#define CTIO7_FLAGS_SEND_STATUS BIT_15
497#define CTIO7_FLAGS_TERMINATE BIT_14
498#define CTIO7_FLAGS_CONFORM_REQ BIT_13
499#define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
500#define CTIO7_FLAGS_STATUS_MODE_0 0
501#define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
f83adb61 502#define CTIO7_FLAGS_STATUS_MODE_2 BIT_7
2d70c103
NB		 503#define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
504#define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
505#define CTIO7_FLAGS_DSD_PTR BIT_2
f83adb61
QT		 506#define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */
507#define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */
2d70c103
NB		 508
509#define ELS_PLOGI 0x3
510#define ELS_FLOGI 0x4
511#define ELS_LOGO 0x5
512#define ELS_PRLI 0x20
513#define ELS_PRLO 0x21
514#define ELS_TPRLO 0x24
515#define ELS_PDISC 0x50
516#define ELS_ADISC 0x52
517
f83adb61
QT		 518/*
519 *CTIO Type CRC_2 IOCB
520 */
521struct ctio_crc2_to_fw {
522 uint8_t entry_type; /* Entry type. */
523#define CTIO_CRC2 0x7A
524 uint8_t entry_count; /* Entry count. */
525 uint8_t sys_define; /* System defined. */
526 uint8_t entry_status; /* Entry Status. */
527
528 uint32_t handle; /* System handle. */
529 uint16_t nport_handle; /* N_PORT handle. */
c7ee3bd4 530 __le16 timeout; /* Command timeout. */
f83adb61
QT		 531
532 uint16_t dseg_count; /* Data segment count. */
533 uint8_t vp_index;
534 uint8_t add_flags; /* additional flags */
535#define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
536
537 uint8_t initiator_id[3]; /* initiator ID */
538 uint8_t reserved1;
539 uint32_t exchange_addr; /* rcv exchange address */
540 uint16_t reserved2;
c7ee3bd4 541 __le16 flags; /* refer to CTIO7 flags values */
f83adb61 542 uint32_t residual;
c7ee3bd4 543 __le16 ox_id;
f83adb61 544 uint16_t scsi_status;
c7ee3bd4 545 __le32 relative_offset;
f83adb61 546 uint32_t reserved5;
c7ee3bd4 547 __le32 transfer_length; /* total fc transfer length */
f83adb61 548 uint32_t reserved6;
c7ee3bd4 549 __le32 crc_context_address[2];/* Data segment address. */
f83adb61
QT		 550 uint16_t crc_context_len; /* Data segment length. */
551 uint16_t reserved_1; /* MUST be set to 0. */
552} __packed;
553
554/* CTIO Type CRC_x Status IOCB */
555struct ctio_crc_from_fw {
556 uint8_t entry_type; /* Entry type. */
557 uint8_t entry_count; /* Entry count. */
558 uint8_t sys_define; /* System defined. */
559 uint8_t entry_status; /* Entry Status. */
560
561 uint32_t handle; /* System handle. */
562 uint16_t status;
563 uint16_t timeout; /* Command timeout. */
564 uint16_t dseg_count; /* Data segment count. */
565 uint32_t reserved1;
566 uint16_t state_flags;
567#define CTIO_CRC_SF_DIF_CHOPPED BIT_4
568
569 uint32_t exchange_address; /* rcv exchange address */
570 uint16_t reserved2;
571 uint16_t flags;
572 uint32_t resid_xfer_length;
573 uint16_t ox_id;
574 uint8_t reserved3[12];
575 uint16_t runt_guard; /* reported runt blk guard */
576 uint8_t actual_dif[8];
577 uint8_t expected_dif[8];
578} __packed;
579
2d70c103
NB		 580/*
581 * ISP queue - ABTS received/response entries structure definition for 24xx.
582 */
583#define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
584#define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
585
586/*
587 * ISP queue - ABTS received IOCB entry structure definition for 24xx.
588 * The ABTS BLS received from the wire is sent to the
589 * target driver by the ISP 24xx.
590 * The IOCB is placed on the response queue.
591 */
592struct abts_recv_from_24xx {
593 uint8_t entry_type; /* Entry type. */
594 uint8_t entry_count; /* Entry count. */
595 uint8_t sys_define; /* System defined. */
596 uint8_t entry_status; /* Entry Status. */
597 uint8_t reserved_1[6];
598 uint16_t nport_handle;
599 uint8_t reserved_2[2];
600 uint8_t vp_index;
601 uint8_t reserved_3:4;
602 uint8_t sof_type:4;
603 uint32_t exchange_address;
604 struct fcp_hdr_le fcp_hdr_le;
605 uint8_t reserved_4[16];
606 uint32_t exchange_addr_to_abort;
607} __packed;
608
609#define ABTS_PARAM_ABORT_SEQ BIT_0
610
611struct ba_acc_le {
612 uint16_t reserved;
613 uint8_t seq_id_last;
614 uint8_t seq_id_valid;
615#define SEQ_ID_VALID 0x80
616#define SEQ_ID_INVALID 0x00
617 uint16_t rx_id;
618 uint16_t ox_id;
619 uint16_t high_seq_cnt;
620 uint16_t low_seq_cnt;
621} __packed;
622
623struct ba_rjt_le {
624 uint8_t vendor_uniq;
625 uint8_t reason_expl;
626 uint8_t reason_code;
627#define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
628#define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
629 uint8_t reserved;
630} __packed;
631
632/*
633 * ISP queue - ABTS Response IOCB entry structure definition for 24xx.
634 * The ABTS response to the ABTS received is sent by the
635 * target driver to the ISP 24xx.
636 * The IOCB is placed on the request queue.
637 */
638struct abts_resp_to_24xx {
639 uint8_t entry_type; /* Entry type. */
640 uint8_t entry_count; /* Entry count. */
641 uint8_t sys_define; /* System defined. */
642 uint8_t entry_status; /* Entry Status. */
643 uint32_t handle;
644 uint16_t reserved_1;
645 uint16_t nport_handle;
646 uint16_t control_flags;
647#define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
648 uint8_t vp_index;
649 uint8_t reserved_3:4;
650 uint8_t sof_type:4;
651 uint32_t exchange_address;
652 struct fcp_hdr_le fcp_hdr_le;
653 union {
654 struct ba_acc_le ba_acct;
655 struct ba_rjt_le ba_rjt;
656 } __packed payload;
657 uint32_t reserved_4;
658 uint32_t exchange_addr_to_abort;
659} __packed;
660
661/*
662 * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
663 * The ABTS response with completion status to the ABTS response
664 * (sent by the target driver to the ISP 24xx) is sent by the
665 * ISP24xx firmware to the target driver.
666 * The IOCB is placed on the response queue.
667 */
668struct abts_resp_from_24xx_fw {
669 uint8_t entry_type; /* Entry type. */
670 uint8_t entry_count; /* Entry count. */
671 uint8_t sys_define; /* System defined. */
672 uint8_t entry_status; /* Entry Status. */
673 uint32_t handle;
674 uint16_t compl_status;
675#define ABTS_RESP_COMPL_SUCCESS 0
676#define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
677 uint16_t nport_handle;
678 uint16_t reserved_1;
679 uint8_t reserved_2;
680 uint8_t reserved_3:4;
681 uint8_t sof_type:4;
682 uint32_t exchange_address;
683 struct fcp_hdr_le fcp_hdr_le;
684 uint8_t reserved_4[8];
685 uint32_t error_subcode1;
686#define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
687 uint32_t error_subcode2;
688 uint32_t exchange_addr_to_abort;
689} __packed;
690
691/********************************************************************\
692 * Type Definitions used by initiator & target halves
693\********************************************************************/
694
695struct qla_tgt_mgmt_cmd;
696struct qla_tgt_sess;
697
698/*
699 * This structure provides a template of function calls that the
700 * target driver (from within qla_target.c) can issue to the
701 * target module (tcm_qla2xxx).
702 */
703struct qla_tgt_func_tmpl {
704
705 int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
706 unsigned char *, uint32_t, int, int, int);
43381ce8 707 void (*handle_data)(struct qla_tgt_cmd *);
f83adb61 708 void (*handle_dif_err)(struct qla_tgt_cmd *);
2d70c103
NB		 709 int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, uint32_t, uint8_t,
710 uint32_t);
711 void (*free_cmd)(struct qla_tgt_cmd *);
712 void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
713 void (*free_session)(struct qla_tgt_sess *);
714
715 int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
716 void *, uint8_t *, uint16_t);
c8292d1d 717 void (*update_sess)(struct qla_tgt_sess *, port_id_t, uint16_t, bool);
2d70c103
NB		 718 struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *,
719 const uint16_t);
720 struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *,
721 const uint8_t *);
722 void (*clear_nacl_from_fcport_map)(struct qla_tgt_sess *);
723 void (*put_sess)(struct qla_tgt_sess *);
724 void (*shutdown_sess)(struct qla_tgt_sess *);
725};
726
727int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
728
729#include <target/target_core_base.h>
730
731#define QLA_TGT_TIMEOUT 10 /* in seconds */
732
733#define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
734
735/* Immediate notify status constants */
736#define IMM_NTFY_LIP_RESET 0x000E
737#define IMM_NTFY_LIP_LINK_REINIT 0x000F
738#define IMM_NTFY_IOCB_OVERFLOW 0x0016
739#define IMM_NTFY_ABORT_TASK 0x0020
740#define IMM_NTFY_PORT_LOGOUT 0x0029
741#define IMM_NTFY_PORT_CONFIG 0x002A
742#define IMM_NTFY_GLBL_TPRLO 0x002D
743#define IMM_NTFY_GLBL_LOGO 0x002E
744#define IMM_NTFY_RESOURCE 0x0034
745#define IMM_NTFY_MSG_RX 0x0036
746#define IMM_NTFY_SRR 0x0045
747#define IMM_NTFY_ELS 0x0046
748
749/* Immediate notify task flags */
750#define IMM_NTFY_TASK_MGMT_SHIFT 8
751
752#define QLA_TGT_CLEAR_ACA 0x40
753#define QLA_TGT_TARGET_RESET 0x20
754#define QLA_TGT_LUN_RESET 0x10
755#define QLA_TGT_CLEAR_TS 0x04
756#define QLA_TGT_ABORT_TS 0x02
757#define QLA_TGT_ABORT_ALL_SESS 0xFFFF
758#define QLA_TGT_ABORT_ALL 0xFFFE
759#define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
760#define QLA_TGT_NEXUS_LOSS 0xFFFC
761
762/* Notify Acknowledge flags */
763#define NOTIFY_ACK_RES_COUNT BIT_8
764#define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
765#define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
766
767/* Command's states */
768#define QLA_TGT_STATE_NEW 0 /* New command + target processing */
769#define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
770#define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
771#define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
772#define QLA_TGT_STATE_ABORTED 4 /* Command aborted */
773
774/* Special handles */
775#define QLA_TGT_NULL_HANDLE 0
776#define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~CTIO_COMPLETION_HANDLE_MARK)
777
778/* ATIO task_codes field */
779#define ATIO_SIMPLE_QUEUE 0
780#define ATIO_HEAD_OF_QUEUE 1
781#define ATIO_ORDERED_QUEUE 2
782#define ATIO_ACA_QUEUE 4
783#define ATIO_UNTAGGED 5
784
785/* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
786#define FC_TM_SUCCESS 0
787#define FC_TM_BAD_FCP_DATA 1
788#define FC_TM_BAD_CMD 2
789#define FC_TM_FCP_DATA_MISMATCH 3
790#define FC_TM_REJECT 4
791#define FC_TM_FAILED 5
792
793/*
794 * Error code of qlt_pre_xmit_response() meaning that cmd's exchange was
795 * terminated, so no more actions is needed and success should be returned
796 * to target.
797 */
798#define QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED 0x1717
799
800#if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G)
801#define pci_dma_lo32(a) (a & 0xffffffff)
802#define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff)
803#else
804#define pci_dma_lo32(a) (a & 0xffffffff)
805#define pci_dma_hi32(a) 0
806#endif
807
808#define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
809 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
810
811struct qla_port_24xx_data {
812 uint8_t port_name[WWN_SIZE];
813 uint16_t loop_id;
814 uint16_t reserved;
815};
816
817struct qla_tgt {
818 struct scsi_qla_host *vha;
819 struct qla_hw_data *ha;
820
821 /*
822 * To sync between IRQ handlers and qlt_target_release(). Needed,
823 * because req_pkt() can drop/reaquire HW lock inside. Protected by
824 * HW lock.
825 */
826 int irq_cmd_count;
827
828 int datasegs_per_cmd, datasegs_per_cont, sg_tablesize;
829
830 /* Target's flags, serialized by pha->hardware_lock */
831 unsigned int tgt_enable_64bit_addr:1; /* 64-bits PCI addr enabled */
832 unsigned int link_reinit_iocb_pending:1;
833
834 /*
835 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
836 * OR hardware_lock for reading.
837 */
838 int tgt_stop; /* the target mode driver is being stopped */
839 int tgt_stopped; /* the target mode driver has been stopped */
840
841 /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
842 int sess_count;
843
844 /* Protected by hardware_lock. Addition also protected by tgt_mutex. */
845 struct list_head sess_list;
846
847 /* Protected by hardware_lock */
848 struct list_head del_sess_list;
849 struct delayed_work sess_del_work;
850
851 spinlock_t sess_work_lock;
852 struct list_head sess_works_list;
853 struct work_struct sess_work;
854
855 struct imm_ntfy_from_isp link_reinit_iocb;
856 wait_queue_head_t waitQ;
857 int notify_ack_expected;
858 int abts_resp_expected;
859 int modify_lun_expected;
860
861 int ctio_srr_id;
862 int imm_srr_id;
863 spinlock_t srr_lock;
864 struct list_head srr_ctio_list;
865 struct list_head srr_imm_list;
866 struct work_struct srr_work;
867
868 atomic_t tgt_global_resets_count;
869
870 struct list_head tgt_list_entry;
871};
872
51a07f84
NB		 873struct qla_tgt_sess_op {
874 struct scsi_qla_host *vha;
875 struct atio_from_isp atio;
876 struct work_struct work;
877};
878
2d70c103
NB		 879/*
880 * Equivilant to IT Nexus (Initiator-Target)
881 */
882struct qla_tgt_sess {
883 uint16_t loop_id;
884 port_id_t s_id;
885
886 unsigned int conf_compl_supported:1;
887 unsigned int deleted:1;
888 unsigned int local:1;
2d70c103
NB		 889
890 struct se_session *se_sess;
891 struct scsi_qla_host *vha;
892 struct qla_tgt *tgt;
893
894 struct list_head sess_list_entry;
895 unsigned long expires;
896 struct list_head del_list_entry;
897
898 uint8_t port_name[WWN_SIZE];
899 struct work_struct free_work;
900};
901
902struct qla_tgt_cmd {
f83adb61 903 struct se_cmd se_cmd;
2d70c103
NB		 904 struct qla_tgt_sess *sess;
905 int state;
2d70c103
NB		 906 struct work_struct free_work;
907 struct work_struct work;
908 /* Sense buffer that will be mapped into outgoing status */
909 unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
910
911 /* to save extra sess dereferences */
912 unsigned int conf_compl_supported:1;
913 unsigned int sg_mapped:1;
914 unsigned int free_sg:1;
915 unsigned int aborted:1; /* Needed in case of SRR */
916 unsigned int write_data_transferred:1;
f83adb61 917 unsigned int ctx_dsd_alloced:1;
33e79977
QT		 918 unsigned int q_full:1;
919 unsigned int term_exchg:1;
d564a372 920 unsigned int cmd_sent_to_fw:1;
e07f8f65 921 unsigned int cmd_in_wq:1;
2d70c103
NB		 922
923 struct scatterlist *sg; /* cmd data buffer SG vector */
924 int sg_cnt; /* SG segments count */
925 int bufflen; /* cmd buffer length */
926 int offset;
2d70c103
NB		 927 uint32_t unpacked_lun;
928 enum dma_data_direction dma_data_direction;
b6a029e1 929 uint32_t reset_count;
2d70c103
NB		 930
931 uint16_t loop_id; /* to save extra sess dereferences */
932 struct qla_tgt *tgt; /* to save extra sess dereferences */
933 struct scsi_qla_host *vha;
33e79977 934 struct list_head cmd_list;
2d70c103
NB		 935
936 struct atio_from_isp atio;
f83adb61
QT		 937 /* t10dif */
938 struct scatterlist *prot_sg;
939 uint32_t prot_sg_cnt;
940 uint32_t blk_sz;
941 struct crc_context *ctx;
942
e07f8f65
SK		 943 uint64_t jiffies_at_alloc;
944 uint64_t jiffies_at_free;
945 /* BIT_0 - Atio Arrival / schedule to work
946 * BIT_1 - qlt_do_work
947 * BIT_2 - qlt_do work failed
948 * BIT_3 - xfer rdy/tcm_qla2xxx_write_pending
949 * BIT_4 - read respond/tcm_qla2xx_queue_data_in
950 * BIT_5 - status respond / tcm_qla2xx_queue_status
951 * BIT_6 - tcm request to abort/Term exchange.
952 * pre_xmit_response->qlt_send_term_exchange
953 * BIT_7 - SRR received (qlt_handle_srr->qlt_xmit_response)
954 * BIT_8 - SRR received (qlt_handle_srr->qlt_rdy_to_xfer)
955 * BIT_9 - SRR received (qla_handle_srr->qlt_send_term_exchange)
956 * BIT_10 - Data in - hanlde_data->tcm_qla2xxx_handle_data
957 * BIT_11 - Data actually going to TCM : tcm_qla2xx_handle_data_work
958 * BIT_12 - good completion - qlt_ctio_do_completion -->free_cmd
959 * BIT_13 - Bad completion -
960 * qlt_ctio_do_completion --> qlt_term_ctio_exchange
961 * BIT_14 - Back end data received/sent.
962 * BIT_15 - SRR prepare ctio
963 * BIT_16 - complete free
e5fdee87
QT		 964 * BIT_17 - flush - qlt_abort_cmd_on_host_reset
965 * BIT_18 - completion w/abort status
966 * BIT_19 - completion w/unknown status
e07f8f65
SK		 967 */
968 uint32_t cmd_flags;
2d70c103
NB		 969};
970
971struct qla_tgt_sess_work_param {
972 struct list_head sess_works_list_entry;
973
974#define QLA_TGT_SESS_WORK_ABORT 1
975#define QLA_TGT_SESS_WORK_TM 2
976 int type;
977
978 union {
979 struct abts_recv_from_24xx abts;
980 struct imm_ntfy_from_isp tm_iocb;
981 struct atio_from_isp tm_iocb2;
982 };
983};
984
985struct qla_tgt_mgmt_cmd {
986 uint8_t tmr_func;
987 uint8_t fc_tm_rsp;
988 struct qla_tgt_sess *sess;
989 struct se_cmd se_cmd;
990 struct work_struct free_work;
991 unsigned int flags;
b6a029e1 992 uint32_t reset_count;
2d70c103
NB		 993#define QLA24XX_MGMT_SEND_NACK 1
994 union {
995 struct atio_from_isp atio;
996 struct imm_ntfy_from_isp imm_ntfy;
997 struct abts_recv_from_24xx abts;
998 } __packed orig_iocb;
999};
1000
1001struct qla_tgt_prm {
1002 struct qla_tgt_cmd *cmd;
1003 struct qla_tgt *tgt;
1004 void *pkt;
1005 struct scatterlist *sg; /* cmd data buffer SG vector */
db3a99b9 1006 unsigned char *sense_buffer;
2d70c103
NB		 1007 int seg_cnt;
1008 int req_cnt;
1009 uint16_t rq_result;
1010 uint16_t scsi_status;
2d70c103
NB		 1011 int sense_buffer_len;
1012 int residual;
1013 int add_status_pkt;
f83adb61
QT		 1014 /* dif */
1015 struct scatterlist *prot_sg;
1016 uint16_t prot_seg_cnt;
1017 uint16_t tot_dsds;
2d70c103
NB		 1018};
1019
1020struct qla_tgt_srr_imm {
1021 struct list_head srr_list_entry;
1022 int srr_id;
1023 struct imm_ntfy_from_isp imm_ntfy;
1024};
1025
1026struct qla_tgt_srr_ctio {
1027 struct list_head srr_list_entry;
1028 int srr_id;
1029 struct qla_tgt_cmd *cmd;
1030};
1031
1032#define QLA_TGT_XMIT_DATA 1
1033#define QLA_TGT_XMIT_STATUS 2
1034#define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1035
2d70c103
NB		 1036
1037extern struct qla_tgt_data qla_target;
2d70c103
NB		 1038
1039/*
1040 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1041 */
1042extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1043extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
49a47f2c
NB		 1044extern int qlt_lport_register(void *, u64, u64, u64,
1045 int (*callback)(struct scsi_qla_host *, void *, u64, u64));
2d70c103
NB		 1046extern void qlt_lport_deregister(struct scsi_qla_host *);
1047extern void qlt_unreg_sess(struct qla_tgt_sess *);
1048extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1049extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *);
2d70c103
NB		 1050extern int __init qlt_init(void);
1051extern void qlt_exit(void);
1052extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1053
1054/*
1055 * This macro is used during early initializations when host->active_mode
1056 * is not set. Right now, ha value is ignored.
1057 */
1058#define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
aa230bc5 1059extern int ql2x_ini_mode;
2d70c103
NB		 1060
1061static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1062{
1063 return ha->host->active_mode & MODE_TARGET;
1064}
1065
1066static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1067{
1068 return ha->host->active_mode & MODE_INITIATOR;
1069}
1070
1071static inline void qla_reverse_ini_mode(struct scsi_qla_host *ha)
1072{
1073 if (ha->host->active_mode & MODE_INITIATOR)
1074 ha->host->active_mode &= ~MODE_INITIATOR;
1075 else
1076 ha->host->active_mode |= MODE_INITIATOR;
1077}
1078
1079/*
1080 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1081 */
2d70c103
NB		 1082extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, response_t *);
1083extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1084extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1085extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1086extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1087extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
2d70c103
NB		 1088extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1089extern void qlt_enable_vha(struct scsi_qla_host *);
1090extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1091extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *);
1092extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1093extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *);
aa230bc5 1094extern void qlt_24xx_config_rings(struct scsi_qla_host *);
2d70c103
NB		 1095extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1096 struct nvram_24xx *);
1097extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1098 struct init_cb_24xx *);
aa230bc5
AE		 1099extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1100 struct init_cb_81xx *);
1101extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1102 struct nvram_81xx *);
2d70c103
NB		 1103extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1104 struct sts_entry_24xx *);
1105extern void qlt_modify_vp_config(struct scsi_qla_host *,
1106 struct vp_config_entry_24xx *);
1107extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1108extern int qlt_mem_alloc(struct qla_hw_data *);
1109extern void qlt_mem_free(struct qla_hw_data *);
3c231bda 1110extern int qlt_stop_phase1(struct qla_tgt *);
2d70c103 1111extern void qlt_stop_phase2(struct qla_tgt *);
aa230bc5
AE		 1112extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1113extern void qlt_83xx_iospace_config(struct qla_hw_data *);
33e79977 1114extern int qlt_free_qfull_cmds(struct scsi_qla_host *);
2d70c103
NB		 1115
1116#endif /* __QLA_TARGET_H */
Linux 6.x block layer and io_uring tree(s)