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 #define QLA2XXX_INI_MODE_STR_DUAL		"dual"
49 
50 #define QLA2XXX_INI_MODE_EXCLUSIVE	0
51 #define QLA2XXX_INI_MODE_DISABLED	1
52 #define QLA2XXX_INI_MODE_ENABLED	2
53 #define QLA2XXX_INI_MODE_DUAL	3
54 
55 #define QLA2XXX_COMMAND_COUNT_INIT	250
56 #define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
57 
58 /*
59  * Used to mark which completion handles (for RIO Status's) are for CTIO's
60  * vs. regular (non-target) info. This is checked for in
61  * qla2x00_process_response_queue() to see if a handle coming back in a
62  * multi-complete should come to the tgt driver or be handled there by qla2xxx
63  */
64 #define CTIO_COMPLETION_HANDLE_MARK	BIT_29
65 #if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
66 #error "CTIO_COMPLETION_HANDLE_MARK not larger than "
67 	"DEFAULT_OUTSTANDING_COMMANDS"
68 #endif
69 #define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
70 
71 /* Used to mark CTIO as intermediate */
72 #define CTIO_INTERMEDIATE_HANDLE_MARK	BIT_30
73 #define QLA_TGT_NULL_HANDLE	0
74 
75 #define QLA_TGT_HANDLE_MASK  0xF0000000
76 #define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */
77 #define QLA_CMD_HANDLE_MASK  0x0000FFFF
78 #define QLA_TGT_SKIP_HANDLE	(0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK)
79 
80 #define QLA_QPID_HANDLE_SHIFT 16
81 #define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT)
82 
83 
84 #ifndef OF_SS_MODE_0
85 /*
86  * ISP target entries - Flags bit definitions.
87  */
88 #define OF_SS_MODE_0        0
89 #define OF_SS_MODE_1        1
90 #define OF_SS_MODE_2        2
91 #define OF_SS_MODE_3        3
92 
93 #define OF_EXPL_CONF        BIT_5       /* Explicit Confirmation Requested */
94 #define OF_DATA_IN          BIT_6       /* Data in to initiator */
95 					/*  (data from target to initiator) */
96 #define OF_DATA_OUT         BIT_7       /* Data out from initiator */
97 					/*  (data from initiator to target) */
98 #define OF_NO_DATA          (BIT_7 | BIT_6)
99 #define OF_INC_RC           BIT_8       /* Increment command resource count */
100 #define OF_FAST_POST        BIT_9       /* Enable mailbox fast posting. */
101 #define OF_CONF_REQ         BIT_13      /* Confirmation Requested */
102 #define OF_TERM_EXCH        BIT_14      /* Terminate exchange */
103 #define OF_SSTS             BIT_15      /* Send SCSI status */
104 #endif
105 
106 #ifndef QLA_TGT_DATASEGS_PER_CMD32
107 #define QLA_TGT_DATASEGS_PER_CMD32	3
108 #define QLA_TGT_DATASEGS_PER_CONT32	7
109 #define QLA_TGT_MAX_SG32(ql) \
110 	(((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
111 		QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
112 
113 #define QLA_TGT_DATASEGS_PER_CMD64	2
114 #define QLA_TGT_DATASEGS_PER_CONT64	5
115 #define QLA_TGT_MAX_SG64(ql) \
116 	(((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
117 		QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
118 #endif
119 
120 #ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
121 #define QLA_TGT_DATASEGS_PER_CMD_24XX	1
122 #define QLA_TGT_DATASEGS_PER_CONT_24XX	5
123 #define QLA_TGT_MAX_SG_24XX(ql) \
124 	(min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
125 		QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
126 #endif
127 #endif
128 
129 #define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha))			\
130 			 ? le16_to_cpu((iocb)->u.isp2x.target.extended)	\
131 			 : (uint16_t)(iocb)->u.isp2x.target.id.standard)
132 
133 #ifndef NOTIFY_ACK_TYPE
134 #define NOTIFY_ACK_TYPE 0x0E	  /* Notify acknowledge entry. */
135 /*
136  * ISP queue -	notify acknowledge entry structure definition.
137  *		This is sent to the ISP from the target driver.
138  */
139 struct nack_to_isp {
140 	uint8_t	 entry_type;		    /* Entry type. */
141 	uint8_t	 entry_count;		    /* Entry count. */
142 	uint8_t	 sys_define;		    /* System defined. */
143 	uint8_t	 entry_status;		    /* Entry Status. */
144 	union {
145 		struct {
146 			uint32_t sys_define_2; /* System defined. */
147 			target_id_t target;
148 			uint8_t	 target_id;
149 			uint8_t	 reserved_1;
150 			uint16_t flags;
151 			uint16_t resp_code;
152 			uint16_t status;
153 			uint16_t task_flags;
154 			uint16_t seq_id;
155 			uint16_t srr_rx_id;
156 			uint32_t srr_rel_offs;
157 			uint16_t srr_ui;
158 			uint16_t srr_flags;
159 			uint16_t srr_reject_code;
160 			uint8_t  srr_reject_vendor_uniq;
161 			uint8_t  srr_reject_code_expl;
162 			uint8_t  reserved_2[24];
163 		} isp2x;
164 		struct {
165 			uint32_t handle;
166 			uint16_t nport_handle;
167 			uint16_t reserved_1;
168 			uint16_t flags;
169 			uint16_t srr_rx_id;
170 			uint16_t status;
171 			uint8_t  status_subcode;
172 			uint8_t  fw_handle;
173 			uint32_t exchange_address;
174 			uint32_t srr_rel_offs;
175 			uint16_t srr_ui;
176 			uint16_t srr_flags;
177 			uint8_t  reserved_4[19];
178 			uint8_t  vp_index;
179 			uint8_t  srr_reject_vendor_uniq;
180 			uint8_t  srr_reject_code_expl;
181 			uint8_t  srr_reject_code;
182 			uint8_t  reserved_5[5];
183 		} isp24;
184 	} u;
185 	uint8_t  reserved[2];
186 	uint16_t ox_id;
187 } __packed;
188 #define NOTIFY_ACK_FLAGS_TERMINATE	BIT_3
189 #define NOTIFY_ACK_SRR_FLAGS_ACCEPT	0
190 #define NOTIFY_ACK_SRR_FLAGS_REJECT	1
191 
192 #define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM	0x9
193 
194 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL		0
195 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA	0x2a
196 
197 #define NOTIFY_ACK_SUCCESS      0x01
198 #endif
199 
200 #ifndef ACCEPT_TGT_IO_TYPE
201 #define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
202 #endif
203 
204 #ifndef CONTINUE_TGT_IO_TYPE
205 #define CONTINUE_TGT_IO_TYPE 0x17
206 /*
207  * ISP queue -	Continue Target I/O (CTIO) entry for status mode 0 structure.
208  *		This structure is sent to the ISP 2xxx from target driver.
209  */
210 struct ctio_to_2xxx {
211 	uint8_t	 entry_type;		/* Entry type. */
212 	uint8_t	 entry_count;		/* Entry count. */
213 	uint8_t	 sys_define;		/* System defined. */
214 	uint8_t	 entry_status;		/* Entry Status. */
215 	uint32_t handle;		/* System defined handle */
216 	target_id_t target;
217 	uint16_t rx_id;
218 	uint16_t flags;
219 	uint16_t status;
220 	uint16_t timeout;		/* 0 = 30 seconds, 0xFFFF = disable */
221 	uint16_t dseg_count;		/* Data segment count. */
222 	uint32_t relative_offset;
223 	uint32_t residual;
224 	uint16_t reserved_1[3];
225 	uint16_t scsi_status;
226 	uint32_t transfer_length;
227 	uint32_t dseg_0_address;	/* Data segment 0 address. */
228 	uint32_t dseg_0_length;		/* Data segment 0 length. */
229 	uint32_t dseg_1_address;	/* Data segment 1 address. */
230 	uint32_t dseg_1_length;		/* Data segment 1 length. */
231 	uint32_t dseg_2_address;	/* Data segment 2 address. */
232 	uint32_t dseg_2_length;		/* Data segment 2 length. */
233 } __packed;
234 #define ATIO_PATH_INVALID       0x07
235 #define ATIO_CANT_PROV_CAP      0x16
236 #define ATIO_CDB_VALID          0x3D
237 
238 #define ATIO_EXEC_READ          BIT_1
239 #define ATIO_EXEC_WRITE         BIT_0
240 #endif
241 
242 #ifndef CTIO_A64_TYPE
243 #define CTIO_A64_TYPE 0x1F
244 #define CTIO_SUCCESS			0x01
245 #define CTIO_ABORTED			0x02
246 #define CTIO_INVALID_RX_ID		0x08
247 #define CTIO_TIMEOUT			0x0B
248 #define CTIO_DIF_ERROR			0x0C     /* DIF error detected  */
249 #define CTIO_LIP_RESET			0x0E
250 #define CTIO_TARGET_RESET		0x17
251 #define CTIO_PORT_UNAVAILABLE		0x28
252 #define CTIO_PORT_LOGGED_OUT		0x29
253 #define CTIO_PORT_CONF_CHANGED		0x2A
254 #define CTIO_SRR_RECEIVED		0x45
255 #endif
256 
257 #ifndef CTIO_RET_TYPE
258 #define CTIO_RET_TYPE	0x17		/* CTIO return entry */
259 #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
260 
261 struct fcp_hdr {
262 	uint8_t  r_ctl;
263 	uint8_t  d_id[3];
264 	uint8_t  cs_ctl;
265 	uint8_t  s_id[3];
266 	uint8_t  type;
267 	uint8_t  f_ctl[3];
268 	uint8_t  seq_id;
269 	uint8_t  df_ctl;
270 	uint16_t seq_cnt;
271 	__be16   ox_id;
272 	uint16_t rx_id;
273 	uint32_t parameter;
274 } __packed;
275 
276 struct fcp_hdr_le {
277 	uint8_t  d_id[3];
278 	uint8_t  r_ctl;
279 	uint8_t  s_id[3];
280 	uint8_t  cs_ctl;
281 	uint8_t  f_ctl[3];
282 	uint8_t  type;
283 	uint16_t seq_cnt;
284 	uint8_t  df_ctl;
285 	uint8_t  seq_id;
286 	uint16_t rx_id;
287 	uint16_t ox_id;
288 	uint32_t parameter;
289 } __packed;
290 
291 #define F_CTL_EXCH_CONTEXT_RESP	BIT_23
292 #define F_CTL_SEQ_CONTEXT_RESIP	BIT_22
293 #define F_CTL_LAST_SEQ		BIT_20
294 #define F_CTL_END_SEQ		BIT_19
295 #define F_CTL_SEQ_INITIATIVE	BIT_16
296 
297 #define R_CTL_BASIC_LINK_SERV	0x80
298 #define R_CTL_B_ACC		0x4
299 #define R_CTL_B_RJT		0x5
300 
301 struct atio7_fcp_cmnd {
302 	uint64_t lun;
303 	uint8_t  cmnd_ref;
304 	uint8_t  task_attr:3;
305 	uint8_t  reserved:5;
306 	uint8_t  task_mgmt_flags;
307 #define FCP_CMND_TASK_MGMT_CLEAR_ACA		6
308 #define FCP_CMND_TASK_MGMT_TARGET_RESET		5
309 #define FCP_CMND_TASK_MGMT_LU_RESET		4
310 #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET	2
311 #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET	1
312 	uint8_t  wrdata:1;
313 	uint8_t  rddata:1;
314 	uint8_t  add_cdb_len:6;
315 	uint8_t  cdb[16];
316 	/*
317 	 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
318 	 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
319 	 * BUILD_BUG_ON in qlt_init().
320 	 */
321 	uint8_t  add_cdb[4];
322 	/* uint32_t data_length; */
323 } __packed;
324 
325 /*
326  * ISP queue -	Accept Target I/O (ATIO) type entry IOCB structure.
327  *		This is sent from the ISP to the target driver.
328  */
329 struct atio_from_isp {
330 	union {
331 		struct {
332 			uint16_t entry_hdr;
333 			uint8_t  sys_define;   /* System defined. */
334 			uint8_t  entry_status; /* Entry Status.   */
335 			uint32_t sys_define_2; /* System defined. */
336 			target_id_t target;
337 			uint16_t rx_id;
338 			uint16_t flags;
339 			uint16_t status;
340 			uint8_t  command_ref;
341 			uint8_t  task_codes;
342 			uint8_t  task_flags;
343 			uint8_t  execution_codes;
344 			uint8_t  cdb[MAX_CMDSZ];
345 			uint32_t data_length;
346 			uint16_t lun;
347 			uint8_t  initiator_port_name[WWN_SIZE]; /* on qla23xx */
348 			uint16_t reserved_32[6];
349 			uint16_t ox_id;
350 		} isp2x;
351 		struct {
352 			uint16_t entry_hdr;
353 			uint8_t  fcp_cmnd_len_low;
354 			uint8_t  fcp_cmnd_len_high:4;
355 			uint8_t  attr:4;
356 			uint32_t exchange_addr;
357 #define ATIO_EXCHANGE_ADDRESS_UNKNOWN	0xFFFFFFFF
358 			struct fcp_hdr fcp_hdr;
359 			struct atio7_fcp_cmnd fcp_cmnd;
360 		} isp24;
361 		struct {
362 			uint8_t  entry_type;	/* Entry type. */
363 			uint8_t  entry_count;	/* Entry count. */
364 			__le16	 attr_n_length;
365 #define FCP_CMD_LENGTH_MASK 0x0fff
366 #define FCP_CMD_LENGTH_MIN  0x38
367 			uint8_t  data[56];
368 			uint32_t signature;
369 #define ATIO_PROCESSED 0xDEADDEAD		/* Signature */
370 		} raw;
371 	} u;
372 } __packed;
373 
374 static inline int fcpcmd_is_corrupted(struct atio *atio)
375 {
376 	if (atio->entry_type == ATIO_TYPE7 &&
377 	    ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <
378 	     FCP_CMD_LENGTH_MIN))
379 		return 1;
380 	else
381 		return 0;
382 }
383 
384 /* adjust corrupted atio so we won't trip over the same entry again. */
385 static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
386 {
387 	atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
388 	atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
389 }
390 
391 static inline int get_datalen_for_atio(struct atio_from_isp *atio)
392 {
393 	int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
394 
395 	return (be32_to_cpu(get_unaligned((uint32_t *)
396 	    &atio->u.isp24.fcp_cmnd.add_cdb[len * 4])));
397 }
398 
399 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
400 
401 /*
402  * ISP queue -	Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
403  *		This structure is sent to the ISP 24xx from the target driver.
404  */
405 
406 struct ctio7_to_24xx {
407 	uint8_t	 entry_type;		    /* Entry type. */
408 	uint8_t	 entry_count;		    /* Entry count. */
409 	uint8_t	 sys_define;		    /* System defined. */
410 	uint8_t	 entry_status;		    /* Entry Status. */
411 	uint32_t handle;		    /* System defined handle */
412 	uint16_t nport_handle;
413 #define CTIO7_NHANDLE_UNRECOGNIZED	0xFFFF
414 	uint16_t timeout;
415 	uint16_t dseg_count;		    /* Data segment count. */
416 	uint8_t  vp_index;
417 	uint8_t  add_flags;
418 	uint8_t  initiator_id[3];
419 	uint8_t  reserved;
420 	uint32_t exchange_addr;
421 	union {
422 		struct {
423 			uint16_t reserved1;
424 			__le16 flags;
425 			uint32_t residual;
426 			__le16 ox_id;
427 			uint16_t scsi_status;
428 			uint32_t relative_offset;
429 			uint32_t reserved2;
430 			uint32_t transfer_length;
431 			uint32_t reserved3;
432 			/* Data segment 0 address. */
433 			uint32_t dseg_0_address[2];
434 			/* Data segment 0 length. */
435 			uint32_t dseg_0_length;
436 		} status0;
437 		struct {
438 			uint16_t sense_length;
439 			__le16 flags;
440 			uint32_t residual;
441 			__le16 ox_id;
442 			uint16_t scsi_status;
443 			uint16_t response_len;
444 			uint16_t reserved;
445 			uint8_t sense_data[24];
446 		} status1;
447 	} u;
448 } __packed;
449 
450 /*
451  * ISP queue - CTIO type 7 from ISP 24xx to target driver
452  * returned entry structure.
453  */
454 struct ctio7_from_24xx {
455 	uint8_t	 entry_type;		    /* Entry type. */
456 	uint8_t	 entry_count;		    /* Entry count. */
457 	uint8_t	 sys_define;		    /* System defined. */
458 	uint8_t	 entry_status;		    /* Entry Status. */
459 	uint32_t handle;		    /* System defined handle */
460 	uint16_t status;
461 	uint16_t timeout;
462 	uint16_t dseg_count;		    /* Data segment count. */
463 	uint8_t  vp_index;
464 	uint8_t  reserved1[5];
465 	uint32_t exchange_address;
466 	uint16_t reserved2;
467 	uint16_t flags;
468 	uint32_t residual;
469 	uint16_t ox_id;
470 	uint16_t reserved3;
471 	uint32_t relative_offset;
472 	uint8_t  reserved4[24];
473 } __packed;
474 
475 /* CTIO7 flags values */
476 #define CTIO7_FLAGS_SEND_STATUS		BIT_15
477 #define CTIO7_FLAGS_TERMINATE		BIT_14
478 #define CTIO7_FLAGS_CONFORM_REQ		BIT_13
479 #define CTIO7_FLAGS_DONT_RET_CTIO	BIT_8
480 #define CTIO7_FLAGS_STATUS_MODE_0	0
481 #define CTIO7_FLAGS_STATUS_MODE_1	BIT_6
482 #define CTIO7_FLAGS_STATUS_MODE_2	BIT_7
483 #define CTIO7_FLAGS_EXPLICIT_CONFORM	BIT_5
484 #define CTIO7_FLAGS_CONFIRM_SATISF	BIT_4
485 #define CTIO7_FLAGS_DSD_PTR		BIT_2
486 #define CTIO7_FLAGS_DATA_IN		BIT_1 /* data to initiator */
487 #define CTIO7_FLAGS_DATA_OUT		BIT_0 /* data from initiator */
488 
489 #define ELS_PLOGI			0x3
490 #define ELS_FLOGI			0x4
491 #define ELS_LOGO			0x5
492 #define ELS_PRLI			0x20
493 #define ELS_PRLO			0x21
494 #define ELS_TPRLO			0x24
495 #define ELS_PDISC			0x50
496 #define ELS_ADISC			0x52
497 
498 /*
499  *CTIO Type CRC_2 IOCB
500  */
501 struct ctio_crc2_to_fw {
502 	uint8_t entry_type;		/* Entry type. */
503 #define CTIO_CRC2 0x7A
504 	uint8_t entry_count;		/* Entry count. */
505 	uint8_t sys_define;		/* System defined. */
506 	uint8_t entry_status;		/* Entry Status. */
507 
508 	uint32_t handle;		/* System handle. */
509 	uint16_t nport_handle;		/* N_PORT handle. */
510 	__le16 timeout;		/* Command timeout. */
511 
512 	uint16_t dseg_count;		/* Data segment count. */
513 	uint8_t  vp_index;
514 	uint8_t  add_flags;		/* additional flags */
515 #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
516 
517 	uint8_t  initiator_id[3];	/* initiator ID */
518 	uint8_t  reserved1;
519 	uint32_t exchange_addr;		/* rcv exchange address */
520 	uint16_t reserved2;
521 	__le16 flags;			/* refer to CTIO7 flags values */
522 	uint32_t residual;
523 	__le16 ox_id;
524 	uint16_t scsi_status;
525 	__le32 relative_offset;
526 	uint32_t reserved5;
527 	__le32 transfer_length;		/* total fc transfer length */
528 	uint32_t reserved6;
529 	__le32 crc_context_address[2];/* Data segment address. */
530 	uint16_t crc_context_len;	/* Data segment length. */
531 	uint16_t reserved_1;		/* MUST be set to 0. */
532 } __packed;
533 
534 /* CTIO Type CRC_x Status IOCB */
535 struct ctio_crc_from_fw {
536 	uint8_t entry_type;		/* Entry type. */
537 	uint8_t entry_count;		/* Entry count. */
538 	uint8_t sys_define;		/* System defined. */
539 	uint8_t entry_status;		/* Entry Status. */
540 
541 	uint32_t handle;		/* System handle. */
542 	uint16_t status;
543 	uint16_t timeout;		/* Command timeout. */
544 	uint16_t dseg_count;		/* Data segment count. */
545 	uint32_t reserved1;
546 	uint16_t state_flags;
547 #define CTIO_CRC_SF_DIF_CHOPPED BIT_4
548 
549 	uint32_t exchange_address;	/* rcv exchange address */
550 	uint16_t reserved2;
551 	uint16_t flags;
552 	uint32_t resid_xfer_length;
553 	uint16_t ox_id;
554 	uint8_t  reserved3[12];
555 	uint16_t runt_guard;		/* reported runt blk guard */
556 	uint8_t  actual_dif[8];
557 	uint8_t  expected_dif[8];
558 } __packed;
559 
560 /*
561  * ISP queue - ABTS received/response entries structure definition for 24xx.
562  */
563 #define ABTS_RECV_24XX		0x54 /* ABTS received (for 24xx) */
564 #define ABTS_RESP_24XX		0x55 /* ABTS responce (for 24xx) */
565 
566 /*
567  * ISP queue -	ABTS received IOCB entry structure definition for 24xx.
568  *		The ABTS BLS received from the wire is sent to the
569  *		target driver by the ISP 24xx.
570  *		The IOCB is placed on the response queue.
571  */
572 struct abts_recv_from_24xx {
573 	uint8_t	 entry_type;		    /* Entry type. */
574 	uint8_t	 entry_count;		    /* Entry count. */
575 	uint8_t	 sys_define;		    /* System defined. */
576 	uint8_t	 entry_status;		    /* Entry Status. */
577 	uint8_t  reserved_1[6];
578 	uint16_t nport_handle;
579 	uint8_t  reserved_2[2];
580 	uint8_t  vp_index;
581 	uint8_t  reserved_3:4;
582 	uint8_t  sof_type:4;
583 	uint32_t exchange_address;
584 	struct fcp_hdr_le fcp_hdr_le;
585 	uint8_t  reserved_4[16];
586 	uint32_t exchange_addr_to_abort;
587 } __packed;
588 
589 #define ABTS_PARAM_ABORT_SEQ		BIT_0
590 
591 struct ba_acc_le {
592 	uint16_t reserved;
593 	uint8_t  seq_id_last;
594 	uint8_t  seq_id_valid;
595 #define SEQ_ID_VALID	0x80
596 #define SEQ_ID_INVALID	0x00
597 	uint16_t rx_id;
598 	uint16_t ox_id;
599 	uint16_t high_seq_cnt;
600 	uint16_t low_seq_cnt;
601 } __packed;
602 
603 struct ba_rjt_le {
604 	uint8_t vendor_uniq;
605 	uint8_t reason_expl;
606 	uint8_t reason_code;
607 #define BA_RJT_REASON_CODE_INVALID_COMMAND	0x1
608 #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM	0x9
609 	uint8_t reserved;
610 } __packed;
611 
612 /*
613  * ISP queue -	ABTS Response IOCB entry structure definition for 24xx.
614  *		The ABTS response to the ABTS received is sent by the
615  *		target driver to the ISP 24xx.
616  *		The IOCB is placed on the request queue.
617  */
618 struct abts_resp_to_24xx {
619 	uint8_t	 entry_type;		    /* Entry type. */
620 	uint8_t	 entry_count;		    /* Entry count. */
621 	uint8_t	 sys_define;		    /* System defined. */
622 	uint8_t	 entry_status;		    /* Entry Status. */
623 	uint32_t handle;
624 	uint16_t reserved_1;
625 	uint16_t nport_handle;
626 	uint16_t control_flags;
627 #define ABTS_CONTR_FLG_TERM_EXCHG	BIT_0
628 	uint8_t  vp_index;
629 	uint8_t  reserved_3:4;
630 	uint8_t  sof_type:4;
631 	uint32_t exchange_address;
632 	struct fcp_hdr_le fcp_hdr_le;
633 	union {
634 		struct ba_acc_le ba_acct;
635 		struct ba_rjt_le ba_rjt;
636 	} __packed payload;
637 	uint32_t reserved_4;
638 	uint32_t exchange_addr_to_abort;
639 } __packed;
640 
641 /*
642  * ISP queue -	ABTS Response IOCB from ISP24xx Firmware entry structure.
643  *		The ABTS response with completion status to the ABTS response
644  *		(sent by the target driver to the ISP 24xx) is sent by the
645  *		ISP24xx firmware to the target driver.
646  *		The IOCB is placed on the response queue.
647  */
648 struct abts_resp_from_24xx_fw {
649 	uint8_t	 entry_type;		    /* Entry type. */
650 	uint8_t	 entry_count;		    /* Entry count. */
651 	uint8_t	 sys_define;		    /* System defined. */
652 	uint8_t	 entry_status;		    /* Entry Status. */
653 	uint32_t handle;
654 	uint16_t compl_status;
655 #define ABTS_RESP_COMPL_SUCCESS		0
656 #define ABTS_RESP_COMPL_SUBCODE_ERROR	0x31
657 	uint16_t nport_handle;
658 	uint16_t reserved_1;
659 	uint8_t  reserved_2;
660 	uint8_t  reserved_3:4;
661 	uint8_t  sof_type:4;
662 	uint32_t exchange_address;
663 	struct fcp_hdr_le fcp_hdr_le;
664 	uint8_t reserved_4[8];
665 	uint32_t error_subcode1;
666 #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM	0x1E
667 	uint32_t error_subcode2;
668 	uint32_t exchange_addr_to_abort;
669 } __packed;
670 
671 /********************************************************************\
672  * Type Definitions used by initiator & target halves
673 \********************************************************************/
674 
675 struct qla_tgt_mgmt_cmd;
676 struct fc_port;
677 struct qla_tgt_cmd;
678 
679 /*
680  * This structure provides a template of function calls that the
681  * target driver (from within qla_target.c) can issue to the
682  * target module (tcm_qla2xxx).
683  */
684 struct qla_tgt_func_tmpl {
685 	struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t);
686 	int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
687 			unsigned char *, uint32_t, int, int, int);
688 	void (*handle_data)(struct qla_tgt_cmd *);
689 	int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t,
690 			uint32_t);
691 	void (*free_cmd)(struct qla_tgt_cmd *);
692 	void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
693 	void (*free_session)(struct fc_port *);
694 
695 	int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
696 					struct fc_port *);
697 	void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
698 	struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
699 						const uint16_t);
700 	struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
701 						const uint8_t *);
702 	void (*clear_nacl_from_fcport_map)(struct fc_port *);
703 	void (*put_sess)(struct fc_port *);
704 	void (*shutdown_sess)(struct fc_port *);
705 	int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
706 	int (*chk_dif_tags)(uint32_t tag);
707 	void (*add_target)(struct scsi_qla_host *);
708 	void (*remove_target)(struct scsi_qla_host *);
709 };
710 
711 int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
712 
713 #include <target/target_core_base.h>
714 
715 #define QLA_TGT_TIMEOUT			10	/* in seconds */
716 
717 #define QLA_TGT_MAX_HW_PENDING_TIME	60 /* in seconds */
718 
719 /* Immediate notify status constants */
720 #define IMM_NTFY_LIP_RESET          0x000E
721 #define IMM_NTFY_LIP_LINK_REINIT    0x000F
722 #define IMM_NTFY_IOCB_OVERFLOW      0x0016
723 #define IMM_NTFY_ABORT_TASK         0x0020
724 #define IMM_NTFY_PORT_LOGOUT        0x0029
725 #define IMM_NTFY_PORT_CONFIG        0x002A
726 #define IMM_NTFY_GLBL_TPRLO         0x002D
727 #define IMM_NTFY_GLBL_LOGO          0x002E
728 #define IMM_NTFY_RESOURCE           0x0034
729 #define IMM_NTFY_MSG_RX             0x0036
730 #define IMM_NTFY_SRR                0x0045
731 #define IMM_NTFY_ELS                0x0046
732 
733 /* Immediate notify task flags */
734 #define IMM_NTFY_TASK_MGMT_SHIFT    8
735 
736 #define QLA_TGT_CLEAR_ACA               0x40
737 #define QLA_TGT_TARGET_RESET            0x20
738 #define QLA_TGT_LUN_RESET               0x10
739 #define QLA_TGT_CLEAR_TS                0x04
740 #define QLA_TGT_ABORT_TS                0x02
741 #define QLA_TGT_ABORT_ALL_SESS          0xFFFF
742 #define QLA_TGT_ABORT_ALL               0xFFFE
743 #define QLA_TGT_NEXUS_LOSS_SESS         0xFFFD
744 #define QLA_TGT_NEXUS_LOSS              0xFFFC
745 #define QLA_TGT_ABTS			0xFFFB
746 #define QLA_TGT_2G_ABORT_TASK		0xFFFA
747 
748 /* Notify Acknowledge flags */
749 #define NOTIFY_ACK_RES_COUNT        BIT_8
750 #define NOTIFY_ACK_CLEAR_LIP_RESET  BIT_5
751 #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
752 
753 /* Command's states */
754 #define QLA_TGT_STATE_NEW		0 /* New command + target processing */
755 #define QLA_TGT_STATE_NEED_DATA		1 /* target needs data to continue */
756 #define QLA_TGT_STATE_DATA_IN		2 /* Data arrived + target processing */
757 #define QLA_TGT_STATE_PROCESSED		3 /* target done processing */
758 
759 /* ATIO task_codes field */
760 #define ATIO_SIMPLE_QUEUE           0
761 #define ATIO_HEAD_OF_QUEUE          1
762 #define ATIO_ORDERED_QUEUE          2
763 #define ATIO_ACA_QUEUE              4
764 #define ATIO_UNTAGGED               5
765 
766 /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
767 #define	FC_TM_SUCCESS               0
768 #define	FC_TM_BAD_FCP_DATA          1
769 #define	FC_TM_BAD_CMD               2
770 #define	FC_TM_FCP_DATA_MISMATCH     3
771 #define	FC_TM_REJECT                4
772 #define FC_TM_FAILED                5
773 
774 #define QLA_TGT_SENSE_VALID(sense)  ((sense != NULL) && \
775 				(((const uint8_t *)(sense))[0] & 0x70) == 0x70)
776 
777 struct qla_port_24xx_data {
778 	uint8_t port_name[WWN_SIZE];
779 	uint16_t loop_id;
780 	uint16_t reserved;
781 };
782 
783 struct qla_qpair_hint {
784 	struct list_head hint_elem;
785 	struct qla_qpair *qpair;
786 	u16 cpuid;
787 	uint8_t cmd_cnt;
788 };
789 
790 struct qla_tgt {
791 	struct scsi_qla_host *vha;
792 	struct qla_hw_data *ha;
793 	struct btree_head64 lun_qpair_map;
794 	struct qla_qpair_hint *qphints;
795 	/*
796 	 * To sync between IRQ handlers and qlt_target_release(). Needed,
797 	 * because req_pkt() can drop/reaquire HW lock inside. Protected by
798 	 * HW lock.
799 	 */
800 	int atio_irq_cmd_count;
801 
802 	int sg_tablesize;
803 
804 	/* Target's flags, serialized by pha->hardware_lock */
805 	unsigned int link_reinit_iocb_pending:1;
806 
807 	/*
808 	 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
809 	 * OR hardware_lock for reading.
810 	 */
811 	int tgt_stop; /* the target mode driver is being stopped */
812 	int tgt_stopped; /* the target mode driver has been stopped */
813 
814 	/* Count of sessions refering qla_tgt. Protected by hardware_lock. */
815 	int sess_count;
816 
817 	/* Protected by hardware_lock */
818 	struct list_head del_sess_list;
819 
820 	spinlock_t sess_work_lock;
821 	struct list_head sess_works_list;
822 	struct work_struct sess_work;
823 
824 	struct imm_ntfy_from_isp link_reinit_iocb;
825 	wait_queue_head_t waitQ;
826 	int notify_ack_expected;
827 	int abts_resp_expected;
828 	int modify_lun_expected;
829 	atomic_t tgt_global_resets_count;
830 	struct list_head tgt_list_entry;
831 };
832 
833 struct qla_tgt_sess_op {
834 	struct scsi_qla_host *vha;
835 	uint32_t chip_reset;
836 	struct atio_from_isp atio;
837 	struct work_struct work;
838 	struct list_head cmd_list;
839 	bool aborted;
840 	struct rsp_que *rsp;
841 };
842 
843 enum trace_flags {
844 	TRC_NEW_CMD = BIT_0,
845 	TRC_DO_WORK = BIT_1,
846 	TRC_DO_WORK_ERR = BIT_2,
847 	TRC_XFR_RDY = BIT_3,
848 	TRC_XMIT_DATA = BIT_4,
849 	TRC_XMIT_STATUS = BIT_5,
850 	TRC_SRR_RSP =  BIT_6,
851 	TRC_SRR_XRDY = BIT_7,
852 	TRC_SRR_TERM = BIT_8,
853 	TRC_SRR_CTIO = BIT_9,
854 	TRC_FLUSH = BIT_10,
855 	TRC_CTIO_ERR = BIT_11,
856 	TRC_CTIO_DONE = BIT_12,
857 	TRC_CTIO_ABORTED =  BIT_13,
858 	TRC_CTIO_STRANGE= BIT_14,
859 	TRC_CMD_DONE = BIT_15,
860 	TRC_CMD_CHK_STOP = BIT_16,
861 	TRC_CMD_FREE = BIT_17,
862 	TRC_DATA_IN = BIT_18,
863 	TRC_ABORT = BIT_19,
864 	TRC_DIF_ERR = BIT_20,
865 };
866 
867 struct qla_tgt_cmd {
868 	/*
869 	 * Do not move cmd_type field. it needs to line up with srb->cmd_type
870 	 */
871 	uint8_t cmd_type;
872 	uint8_t pad[7];
873 	struct se_cmd se_cmd;
874 	struct fc_port *sess;
875 	struct qla_qpair *qpair;
876 	uint32_t reset_count;
877 	int state;
878 	struct work_struct work;
879 	/* Sense buffer that will be mapped into outgoing status */
880 	unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
881 
882 	spinlock_t cmd_lock;
883 	/* to save extra sess dereferences */
884 	unsigned int conf_compl_supported:1;
885 	unsigned int sg_mapped:1;
886 	unsigned int free_sg:1;
887 	unsigned int write_data_transferred:1;
888 	unsigned int q_full:1;
889 	unsigned int term_exchg:1;
890 	unsigned int cmd_sent_to_fw:1;
891 	unsigned int cmd_in_wq:1;
892 	unsigned int aborted:1;
893 	unsigned int data_work:1;
894 	unsigned int data_work_free:1;
895 	unsigned int released:1;
896 
897 	struct scatterlist *sg;	/* cmd data buffer SG vector */
898 	int sg_cnt;		/* SG segments count */
899 	int bufflen;		/* cmd buffer length */
900 	int offset;
901 	u64 unpacked_lun;
902 	enum dma_data_direction dma_data_direction;
903 
904 	uint16_t ctio_flags;
905 	uint16_t vp_idx;
906 	uint16_t loop_id;	/* to save extra sess dereferences */
907 	struct qla_tgt *tgt;	/* to save extra sess dereferences */
908 	struct scsi_qla_host *vha;
909 	struct list_head cmd_list;
910 
911 	struct atio_from_isp atio;
912 
913 	uint8_t ctx_dsd_alloced;
914 
915 	/* T10-DIF */
916 #define DIF_ERR_NONE 0
917 #define DIF_ERR_GRD 1
918 #define DIF_ERR_REF 2
919 #define DIF_ERR_APP 3
920 	int8_t dif_err_code;
921 	struct scatterlist *prot_sg;
922 	uint32_t prot_sg_cnt;
923 	uint32_t blk_sz, num_blks;
924 	uint8_t scsi_status, sense_key, asc, ascq;
925 
926 	struct crc_context *ctx;
927 	uint8_t		*cdb;
928 	uint64_t	lba;
929 	uint16_t	a_guard, e_guard, a_app_tag, e_app_tag;
930 	uint32_t	a_ref_tag, e_ref_tag;
931 #define DIF_BUNDL_DMA_VALID 1
932 	uint16_t prot_flags;
933 
934 	uint64_t jiffies_at_alloc;
935 	uint64_t jiffies_at_free;
936 
937 	enum trace_flags trc_flags;
938 };
939 
940 struct qla_tgt_sess_work_param {
941 	struct list_head sess_works_list_entry;
942 
943 #define QLA_TGT_SESS_WORK_ABORT	1
944 #define QLA_TGT_SESS_WORK_TM	2
945 	int type;
946 
947 	union {
948 		struct abts_recv_from_24xx abts;
949 		struct imm_ntfy_from_isp tm_iocb;
950 		struct atio_from_isp tm_iocb2;
951 	};
952 };
953 
954 struct qla_tgt_mgmt_cmd {
955 	uint8_t cmd_type;
956 	uint8_t pad[3];
957 	uint16_t tmr_func;
958 	uint8_t fc_tm_rsp;
959 	uint8_t abort_io_attr;
960 	struct fc_port *sess;
961 	struct qla_qpair *qpair;
962 	struct scsi_qla_host *vha;
963 	struct se_cmd se_cmd;
964 	struct work_struct free_work;
965 	unsigned int flags;
966 #define QLA24XX_MGMT_SEND_NACK	BIT_0
967 #define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1
968 	uint32_t reset_count;
969 	struct work_struct work;
970 	uint64_t unpacked_lun;
971 	union {
972 		struct atio_from_isp atio;
973 		struct imm_ntfy_from_isp imm_ntfy;
974 		struct abts_recv_from_24xx abts;
975 	} __packed orig_iocb;
976 };
977 
978 struct qla_tgt_prm {
979 	struct qla_tgt_cmd *cmd;
980 	struct qla_tgt *tgt;
981 	void *pkt;
982 	struct scatterlist *sg;	/* cmd data buffer SG vector */
983 	unsigned char *sense_buffer;
984 	int seg_cnt;
985 	int req_cnt;
986 	uint16_t rq_result;
987 	int sense_buffer_len;
988 	int residual;
989 	int add_status_pkt;
990 	/* dif */
991 	struct scatterlist *prot_sg;
992 	uint16_t prot_seg_cnt;
993 	uint16_t tot_dsds;
994 };
995 
996 /* Check for Switch reserved address */
997 #define IS_SW_RESV_ADDR(_s_id) \
998 	((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
999 
1000 #define QLA_TGT_XMIT_DATA		1
1001 #define QLA_TGT_XMIT_STATUS		2
1002 #define QLA_TGT_XMIT_ALL		(QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1003 
1004 
1005 extern struct qla_tgt_data qla_target;
1006 
1007 /*
1008  * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1009  */
1010 extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1011 extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
1012 extern int qlt_lport_register(void *, u64, u64, u64,
1013 			int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1014 extern void qlt_lport_deregister(struct scsi_qla_host *);
1015 extern void qlt_unreg_sess(struct fc_port *);
1016 extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1017 extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1018 extern int __init qlt_init(void);
1019 extern void qlt_exit(void);
1020 extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1021 extern void qlt_free_session_done(struct work_struct *);
1022 /*
1023  * This macro is used during early initializations when host->active_mode
1024  * is not set. Right now, ha value is ignored.
1025  */
1026 #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1027 
1028 extern int ql2x_ini_mode;
1029 
1030 static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1031 {
1032 	return ha->host->active_mode == MODE_TARGET;
1033 }
1034 
1035 static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1036 {
1037 	return ha->host->active_mode == MODE_INITIATOR;
1038 }
1039 
1040 static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
1041 {
1042 	return (ha->host->active_mode == MODE_DUAL);
1043 }
1044 
1045 static inline uint32_t sid_to_key(const uint8_t *s_id)
1046 {
1047 	uint32_t key;
1048 
1049 	key = (((unsigned long)s_id[0] << 16) |
1050 	       ((unsigned long)s_id[1] << 8) |
1051 	       (unsigned long)s_id[2]);
1052 	return key;
1053 }
1054 
1055 static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
1056 {
1057 	memset(p, 0, sizeof(*p));
1058 	p->b.domain = s_id[0];
1059 	p->b.area = s_id[1];
1060 	p->b.al_pa = s_id[2];
1061 }
1062 
1063 /*
1064  * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1065  */
1066 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
1067 	response_t *);
1068 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1069 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1070 extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1071 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1072 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1073 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1074 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1075 extern void qlt_enable_vha(struct scsi_qla_host *);
1076 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1077 extern u8 qlt_rff_id(struct scsi_qla_host *);
1078 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1079 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1080 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1081 extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1082 	struct nvram_24xx *);
1083 extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1084 	struct init_cb_24xx *);
1085 extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1086 	struct init_cb_81xx *);
1087 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1088 	struct nvram_81xx *);
1089 extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1090 	struct sts_entry_24xx *);
1091 extern void qlt_modify_vp_config(struct scsi_qla_host *,
1092 	struct vp_config_entry_24xx *);
1093 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1094 extern int qlt_mem_alloc(struct qla_hw_data *);
1095 extern void qlt_mem_free(struct qla_hw_data *);
1096 extern int qlt_stop_phase1(struct qla_tgt *);
1097 extern void qlt_stop_phase2(struct qla_tgt *);
1098 extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1099 extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1100 extern int qlt_free_qfull_cmds(struct qla_qpair *);
1101 extern void qlt_logo_completion_handler(fc_port_t *, int);
1102 extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1103 
1104 void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
1105     uint8_t, uint8_t, uint8_t);
1106 extern void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *,
1107     struct qla_tgt_cmd *);
1108 
1109 #endif /* __QLA_TARGET_H */
1110