drivers/scsi/qla2xxx/qla_target.h

   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
  63 #if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
  64 #error "CTIO_COMPLETION_HANDLE_MARK not larger than "
  65         "DEFAULT_OUTSTANDING_COMMANDS"
  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  */
 130 struct 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;
 165                         uint8_t  fw_handle;
 166                         uint32_t exchange_address;
 167                         uint32_t srr_rel_offs;
 168                         uint16_t srr_ui;
 169                         uint16_t srr_ox_id;
 170                         union {
 171                                 struct {
 172                                         uint8_t node_name[8];
 173                                 } plogi; /* PLOGI/ADISC/PDISC */
 174                                 struct {
 175                                         /* PRLI word 3 bit 0-15 */
 176                                         uint16_t wd3_lo;
 177                                         uint8_t resv0[6];
 178                                 } prli;
 179                                 struct {
 180                                         uint8_t port_id[3];
 181                                         uint8_t resv1;
 182                                         uint16_t nport_handle;
 183                                         uint16_t resv2;
 184                                 } req_els;
 185                         } u;
 186                         uint8_t port_name[8];
 187                         uint8_t resv3[3];
 188                         uint8_t  vp_index;
 189                         uint32_t reserved_5;
 190                         uint8_t  port_id[3];
 191                         uint8_t  reserved_6;
 192                 } isp24;
 193         } u;
 194         uint16_t reserved_7;
 195         uint16_t ox_id;
 196 } __packed;
 197 #endif
 198
 199 #ifndef NOTIFY_ACK_TYPE
 200 #define NOTIFY_ACK_TYPE 0x0E      /* Notify acknowledge entry. */
 201 /*
 202  * ISP queue -  notify acknowledge entry structure definition.
 203  *              This is sent to the ISP from the target driver.
 204  */
 205 struct nack_to_isp {
 206         uint8_t  entry_type;                /* Entry type. */
 207         uint8_t  entry_count;               /* Entry count. */
 208         uint8_t  sys_define;                /* System defined. */
 209         uint8_t  entry_status;              /* Entry Status. */
 210         union {
 211                 struct {
 212                         uint32_t sys_define_2; /* System defined. */
 213                         target_id_t target;
 214                         uint8_t  target_id;
 215                         uint8_t  reserved_1;
 216                         uint16_t flags;
 217                         uint16_t resp_code;
 218                         uint16_t status;
 219                         uint16_t task_flags;
 220                         uint16_t seq_id;
 221                         uint16_t srr_rx_id;
 222                         uint32_t srr_rel_offs;
 223                         uint16_t srr_ui;
 224                         uint16_t srr_flags;
 225                         uint16_t srr_reject_code;
 226                         uint8_t  srr_reject_vendor_uniq;
 227                         uint8_t  srr_reject_code_expl;
 228                         uint8_t  reserved_2[24];
 229                 } isp2x;
 230                 struct {
 231                         uint32_t handle;
 232                         uint16_t nport_handle;
 233                         uint16_t reserved_1;
 234                         uint16_t flags;
 235                         uint16_t srr_rx_id;
 236                         uint16_t status;
 237                         uint8_t  status_subcode;
 238                         uint8_t  fw_handle;
 239                         uint32_t exchange_address;
 240                         uint32_t srr_rel_offs;
 241                         uint16_t srr_ui;
 242                         uint16_t srr_flags;
 243                         uint8_t  reserved_4[19];
 244                         uint8_t  vp_index;
 245                         uint8_t  srr_reject_vendor_uniq;
 246                         uint8_t  srr_reject_code_expl;
 247                         uint8_t  srr_reject_code;
 248                         uint8_t  reserved_5[5];
 249                 } isp24;
 250         } u;
 251         uint8_t  reserved[2];
 252         uint16_t ox_id;
 253 } __packed;
 254 #define NOTIFY_ACK_FLAGS_TERMINATE      BIT_3
 255 #define NOTIFY_ACK_SRR_FLAGS_ACCEPT     0
 256 #define NOTIFY_ACK_SRR_FLAGS_REJECT     1
 257
 258 #define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM  0x9
 259
 260 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL                0
 261 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA  0x2a
 262
 263 #define NOTIFY_ACK_SUCCESS      0x01
 264 #endif
 265
 266 #ifndef ACCEPT_TGT_IO_TYPE
 267 #define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
 268 #endif
 269
 270 #ifndef CONTINUE_TGT_IO_TYPE
 271 #define CONTINUE_TGT_IO_TYPE 0x17
 272 /*
 273  * ISP queue -  Continue Target I/O (CTIO) entry for status mode 0 structure.
 274  *              This structure is sent to the ISP 2xxx from target driver.
 275  */
 276 struct ctio_to_2xxx {
 277         uint8_t  entry_type;            /* Entry type. */
 278         uint8_t  entry_count;           /* Entry count. */
 279         uint8_t  sys_define;            /* System defined. */
 280         uint8_t  entry_status;          /* Entry Status. */
 281         uint32_t handle;                /* System defined handle */
 282         target_id_t target;
 283         uint16_t rx_id;
 284         uint16_t flags;
 285         uint16_t status;
 286         uint16_t timeout;               /* 0 = 30 seconds, 0xFFFF = disable */
 287         uint16_t dseg_count;            /* Data segment count. */
 288         uint32_t relative_offset;
 289         uint32_t residual;
 290         uint16_t reserved_1[3];
 291         uint16_t scsi_status;
 292         uint32_t transfer_length;
 293         uint32_t dseg_0_address;        /* Data segment 0 address. */
 294         uint32_t dseg_0_length;         /* Data segment 0 length. */
 295         uint32_t dseg_1_address;        /* Data segment 1 address. */
 296         uint32_t dseg_1_length;         /* Data segment 1 length. */
 297         uint32_t dseg_2_address;        /* Data segment 2 address. */
 298         uint32_t dseg_2_length;         /* Data segment 2 length. */
 299 } __packed;
 300 #define ATIO_PATH_INVALID       0x07
 301 #define ATIO_CANT_PROV_CAP      0x16
 302 #define ATIO_CDB_VALID          0x3D
 303
 304 #define ATIO_EXEC_READ          BIT_1
 305 #define ATIO_EXEC_WRITE         BIT_0
 306 #endif
 307
 308 #ifndef CTIO_A64_TYPE
 309 #define CTIO_A64_TYPE 0x1F
 310 #define CTIO_SUCCESS                    0x01
 311 #define CTIO_ABORTED                    0x02
 312 #define CTIO_INVALID_RX_ID              0x08
 313 #define CTIO_TIMEOUT                    0x0B
 314 #define CTIO_DIF_ERROR                  0x0C     /* DIF error detected  */
 315 #define CTIO_LIP_RESET                  0x0E
 316 #define CTIO_TARGET_RESET               0x17
 317 #define CTIO_PORT_UNAVAILABLE           0x28
 318 #define CTIO_PORT_LOGGED_OUT            0x29
 319 #define CTIO_PORT_CONF_CHANGED          0x2A
 320 #define CTIO_SRR_RECEIVED               0x45
 321 #endif
 322
 323 #ifndef CTIO_RET_TYPE
 324 #define CTIO_RET_TYPE   0x17            /* CTIO return entry */
 325 #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
 326
 327 struct fcp_hdr {
 328         uint8_t  r_ctl;
 329         uint8_t  d_id[3];
 330         uint8_t  cs_ctl;
 331         uint8_t  s_id[3];
 332         uint8_t  type;
 333         uint8_t  f_ctl[3];
 334         uint8_t  seq_id;
 335         uint8_t  df_ctl;
 336         uint16_t seq_cnt;
 337         __be16   ox_id;
 338         uint16_t rx_id;
 339         uint32_t parameter;
 340 } __packed;
 341
 342 struct fcp_hdr_le {
 343         uint8_t  d_id[3];
 344         uint8_t  r_ctl;
 345         uint8_t  s_id[3];
 346         uint8_t  cs_ctl;
 347         uint8_t  f_ctl[3];
 348         uint8_t  type;
 349         uint16_t seq_cnt;
 350         uint8_t  df_ctl;
 351         uint8_t  seq_id;
 352         uint16_t rx_id;
 353         uint16_t ox_id;
 354         uint32_t parameter;
 355 } __packed;
 356
 357 #define F_CTL_EXCH_CONTEXT_RESP BIT_23
 358 #define F_CTL_SEQ_CONTEXT_RESIP BIT_22
 359 #define F_CTL_LAST_SEQ          BIT_20
 360 #define F_CTL_END_SEQ           BIT_19
 361 #define F_CTL_SEQ_INITIATIVE    BIT_16
 362
 363 #define R_CTL_BASIC_LINK_SERV   0x80
 364 #define R_CTL_B_ACC             0x4
 365 #define R_CTL_B_RJT             0x5
 366
 367 struct atio7_fcp_cmnd {
 368         uint64_t lun;
 369         uint8_t  cmnd_ref;
 370         uint8_t  task_attr:3;
 371         uint8_t  reserved:5;
 372         uint8_t  task_mgmt_flags;
 373 #define FCP_CMND_TASK_MGMT_CLEAR_ACA            6
 374 #define FCP_CMND_TASK_MGMT_TARGET_RESET         5
 375 #define FCP_CMND_TASK_MGMT_LU_RESET             4
 376 #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET       2
 377 #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET       1
 378         uint8_t  wrdata:1;
 379         uint8_t  rddata:1;
 380         uint8_t  add_cdb_len:6;
 381         uint8_t  cdb[16];
 382         /*
 383          * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
 384          * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
 385          * BUILD_BUG_ON in qlt_init().
 386          */
 387         uint8_t  add_cdb[4];
 388         /* uint32_t data_length; */
 389 } __packed;
 390
 391 /*
 392  * ISP queue -  Accept Target I/O (ATIO) type entry IOCB structure.
 393  *              This is sent from the ISP to the target driver.
 394  */
 395 struct atio_from_isp {
 396         union {
 397                 struct {
 398                         uint16_t entry_hdr;
 399                         uint8_t  sys_define;   /* System defined. */
 400                         uint8_t  entry_status; /* Entry Status.   */
 401                         uint32_t sys_define_2; /* System defined. */
 402                         target_id_t target;
 403                         uint16_t rx_id;
 404                         uint16_t flags;
 405                         uint16_t status;
 406                         uint8_t  command_ref;
 407                         uint8_t  task_codes;
 408                         uint8_t  task_flags;
 409                         uint8_t  execution_codes;
 410                         uint8_t  cdb[MAX_CMDSZ];
 411                         uint32_t data_length;
 412                         uint16_t lun;
 413                         uint8_t  initiator_port_name[WWN_SIZE]; /* on qla23xx */
 414                         uint16_t reserved_32[6];
 415                         uint16_t ox_id;
 416                 } isp2x;
 417                 struct {
 418                         uint16_t entry_hdr;
 419                         uint8_t  fcp_cmnd_len_low;
 420                         uint8_t  fcp_cmnd_len_high:4;
 421                         uint8_t  attr:4;
 422                         uint32_t exchange_addr;
 423 #define ATIO_EXCHANGE_ADDRESS_UNKNOWN   0xFFFFFFFF
 424                         struct fcp_hdr fcp_hdr;
 425                         struct atio7_fcp_cmnd fcp_cmnd;
 426                 } isp24;
 427                 struct {
 428                         uint8_t  entry_type;    /* Entry type. */
 429                         uint8_t  entry_count;   /* Entry count. */
 430                         uint8_t  data[58];
 431                         uint32_t signature;
 432 #define ATIO_PROCESSED 0xDEADDEAD               /* Signature */
 433                 } raw;
 434         } u;
 435 } __packed;
 436
 437 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
 438
 439 /*
 440  * ISP queue -  Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
 441  *              This structure is sent to the ISP 24xx from the target driver.
 442  */
 443
 444 struct ctio7_to_24xx {
 445         uint8_t  entry_type;                /* Entry type. */
 446         uint8_t  entry_count;               /* Entry count. */
 447         uint8_t  sys_define;                /* System defined. */
 448         uint8_t  entry_status;              /* Entry Status. */
 449         uint32_t handle;                    /* System defined handle */
 450         uint16_t nport_handle;
 451 #define CTIO7_NHANDLE_UNRECOGNIZED      0xFFFF
 452         uint16_t timeout;
 453         uint16_t dseg_count;                /* Data segment count. */
 454         uint8_t  vp_index;
 455         uint8_t  add_flags;
 456         uint8_t  initiator_id[3];
 457         uint8_t  reserved;
 458         uint32_t exchange_addr;
 459         union {
 460                 struct {
 461                         uint16_t reserved1;
 462                         __le16 flags;
 463                         uint32_t residual;
 464                         __le16 ox_id;
 465                         uint16_t scsi_status;
 466                         uint32_t relative_offset;
 467                         uint32_t reserved2;
 468                         uint32_t transfer_length;
 469                         uint32_t reserved3;
 470                         /* Data segment 0 address. */
 471                         uint32_t dseg_0_address[2];
 472                         /* Data segment 0 length. */
 473                         uint32_t dseg_0_length;
 474                 } status0;
 475                 struct {
 476                         uint16_t sense_length;
 477                         uint16_t flags;
 478                         uint32_t residual;
 479                         __le16 ox_id;
 480                         uint16_t scsi_status;
 481                         uint16_t response_len;
 482                         uint16_t reserved;
 483                         uint8_t sense_data[24];
 484                 } status1;
 485         } u;
 486 } __packed;
 487
 488 /*
 489  * ISP queue - CTIO type 7 from ISP 24xx to target driver
 490  * returned entry structure.
 491  */
 492 struct ctio7_from_24xx {
 493         uint8_t  entry_type;                /* Entry type. */
 494         uint8_t  entry_count;               /* Entry count. */
 495         uint8_t  sys_define;                /* System defined. */
 496         uint8_t  entry_status;              /* Entry Status. */
 497         uint32_t handle;                    /* System defined handle */
 498         uint16_t status;
 499         uint16_t timeout;
 500         uint16_t dseg_count;                /* Data segment count. */
 501         uint8_t  vp_index;
 502         uint8_t  reserved1[5];
 503         uint32_t exchange_address;
 504         uint16_t reserved2;
 505         uint16_t flags;
 506         uint32_t residual;
 507         uint16_t ox_id;
 508         uint16_t reserved3;
 509         uint32_t relative_offset;
 510         uint8_t  reserved4[24];
 511 } __packed;
 512
 513 /* CTIO7 flags values */
 514 #define CTIO7_FLAGS_SEND_STATUS         BIT_15
 515 #define CTIO7_FLAGS_TERMINATE           BIT_14
 516 #define CTIO7_FLAGS_CONFORM_REQ         BIT_13
 517 #define CTIO7_FLAGS_DONT_RET_CTIO       BIT_8
 518 #define CTIO7_FLAGS_STATUS_MODE_0       0
 519 #define CTIO7_FLAGS_STATUS_MODE_1       BIT_6
 520 #define CTIO7_FLAGS_STATUS_MODE_2       BIT_7
 521 #define CTIO7_FLAGS_EXPLICIT_CONFORM    BIT_5
 522 #define CTIO7_FLAGS_CONFIRM_SATISF      BIT_4
 523 #define CTIO7_FLAGS_DSD_PTR             BIT_2
 524 #define CTIO7_FLAGS_DATA_IN             BIT_1 /* data to initiator */
 525 #define CTIO7_FLAGS_DATA_OUT            BIT_0 /* data from initiator */
 526
 527 #define ELS_PLOGI                       0x3
 528 #define ELS_FLOGI                       0x4
 529 #define ELS_LOGO                        0x5
 530 #define ELS_PRLI                        0x20
 531 #define ELS_PRLO                        0x21
 532 #define ELS_TPRLO                       0x24
 533 #define ELS_PDISC                       0x50
 534 #define ELS_ADISC                       0x52
 535
 536 /*
 537  *CTIO Type CRC_2 IOCB
 538  */
 539 struct ctio_crc2_to_fw {
 540         uint8_t entry_type;             /* Entry type. */
 541 #define CTIO_CRC2 0x7A
 542         uint8_t entry_count;            /* Entry count. */
 543         uint8_t sys_define;             /* System defined. */
 544         uint8_t entry_status;           /* Entry Status. */
 545
 546         uint32_t handle;                /* System handle. */
 547         uint16_t nport_handle;          /* N_PORT handle. */
 548         __le16 timeout;         /* Command timeout. */
 549
 550         uint16_t dseg_count;            /* Data segment count. */
 551         uint8_t  vp_index;
 552         uint8_t  add_flags;             /* additional flags */
 553 #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
 554
 555         uint8_t  initiator_id[3];       /* initiator ID */
 556         uint8_t  reserved1;
 557         uint32_t exchange_addr;         /* rcv exchange address */
 558         uint16_t reserved2;
 559         __le16 flags;                   /* refer to CTIO7 flags values */
 560         uint32_t residual;
 561         __le16 ox_id;
 562         uint16_t scsi_status;
 563         __le32 relative_offset;
 564         uint32_t reserved5;
 565         __le32 transfer_length;         /* total fc transfer length */
 566         uint32_t reserved6;
 567         __le32 crc_context_address[2];/* Data segment address. */
 568         uint16_t crc_context_len;       /* Data segment length. */
 569         uint16_t reserved_1;            /* MUST be set to 0. */
 570 } __packed;
 571
 572 /* CTIO Type CRC_x Status IOCB */
 573 struct ctio_crc_from_fw {
 574         uint8_t entry_type;             /* Entry type. */
 575         uint8_t entry_count;            /* Entry count. */
 576         uint8_t sys_define;             /* System defined. */
 577         uint8_t entry_status;           /* Entry Status. */
 578
 579         uint32_t handle;                /* System handle. */
 580         uint16_t status;
 581         uint16_t timeout;               /* Command timeout. */
 582         uint16_t dseg_count;            /* Data segment count. */
 583         uint32_t reserved1;
 584         uint16_t state_flags;
 585 #define CTIO_CRC_SF_DIF_CHOPPED BIT_4
 586
 587         uint32_t exchange_address;      /* rcv exchange address */
 588         uint16_t reserved2;
 589         uint16_t flags;
 590         uint32_t resid_xfer_length;
 591         uint16_t ox_id;
 592         uint8_t  reserved3[12];
 593         uint16_t runt_guard;            /* reported runt blk guard */
 594         uint8_t  actual_dif[8];
 595         uint8_t  expected_dif[8];
 596 } __packed;
 597
 598 /*
 599  * ISP queue - ABTS received/response entries structure definition for 24xx.
 600  */
 601 #define ABTS_RECV_24XX          0x54 /* ABTS received (for 24xx) */
 602 #define ABTS_RESP_24XX          0x55 /* ABTS responce (for 24xx) */
 603
 604 /*
 605  * ISP queue -  ABTS received IOCB entry structure definition for 24xx.
 606  *              The ABTS BLS received from the wire is sent to the
 607  *              target driver by the ISP 24xx.
 608  *              The IOCB is placed on the response queue.
 609  */
 610 struct abts_recv_from_24xx {
 611         uint8_t  entry_type;                /* Entry type. */
 612         uint8_t  entry_count;               /* Entry count. */
 613         uint8_t  sys_define;                /* System defined. */
 614         uint8_t  entry_status;              /* Entry Status. */
 615         uint8_t  reserved_1[6];
 616         uint16_t nport_handle;
 617         uint8_t  reserved_2[2];
 618         uint8_t  vp_index;
 619         uint8_t  reserved_3:4;
 620         uint8_t  sof_type:4;
 621         uint32_t exchange_address;
 622         struct fcp_hdr_le fcp_hdr_le;
 623         uint8_t  reserved_4[16];
 624         uint32_t exchange_addr_to_abort;
 625 } __packed;
 626
 627 #define ABTS_PARAM_ABORT_SEQ            BIT_0
 628
 629 struct ba_acc_le {
 630         uint16_t reserved;
 631         uint8_t  seq_id_last;
 632         uint8_t  seq_id_valid;
 633 #define SEQ_ID_VALID    0x80
 634 #define SEQ_ID_INVALID  0x00
 635         uint16_t rx_id;
 636         uint16_t ox_id;
 637         uint16_t high_seq_cnt;
 638         uint16_t low_seq_cnt;
 639 } __packed;
 640
 641 struct ba_rjt_le {
 642         uint8_t vendor_uniq;
 643         uint8_t reason_expl;
 644         uint8_t reason_code;
 645 #define BA_RJT_REASON_CODE_INVALID_COMMAND      0x1
 646 #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM    0x9
 647         uint8_t reserved;
 648 } __packed;
 649
 650 /*
 651  * ISP queue -  ABTS Response IOCB entry structure definition for 24xx.
 652  *              The ABTS response to the ABTS received is sent by the
 653  *              target driver to the ISP 24xx.
 654  *              The IOCB is placed on the request queue.
 655  */
 656 struct abts_resp_to_24xx {
 657         uint8_t  entry_type;                /* Entry type. */
 658         uint8_t  entry_count;               /* Entry count. */
 659         uint8_t  sys_define;                /* System defined. */
 660         uint8_t  entry_status;              /* Entry Status. */
 661         uint32_t handle;
 662         uint16_t reserved_1;
 663         uint16_t nport_handle;
 664         uint16_t control_flags;
 665 #define ABTS_CONTR_FLG_TERM_EXCHG       BIT_0
 666         uint8_t  vp_index;
 667         uint8_t  reserved_3:4;
 668         uint8_t  sof_type:4;
 669         uint32_t exchange_address;
 670         struct fcp_hdr_le fcp_hdr_le;
 671         union {
 672                 struct ba_acc_le ba_acct;
 673                 struct ba_rjt_le ba_rjt;
 674         } __packed payload;
 675         uint32_t reserved_4;
 676         uint32_t exchange_addr_to_abort;
 677 } __packed;
 678
 679 /*
 680  * ISP queue -  ABTS Response IOCB from ISP24xx Firmware entry structure.
 681  *              The ABTS response with completion status to the ABTS response
 682  *              (sent by the target driver to the ISP 24xx) is sent by the
 683  *              ISP24xx firmware to the target driver.
 684  *              The IOCB is placed on the response queue.
 685  */
 686 struct abts_resp_from_24xx_fw {
 687         uint8_t  entry_type;                /* Entry type. */
 688         uint8_t  entry_count;               /* Entry count. */
 689         uint8_t  sys_define;                /* System defined. */
 690         uint8_t  entry_status;              /* Entry Status. */
 691         uint32_t handle;
 692         uint16_t compl_status;
 693 #define ABTS_RESP_COMPL_SUCCESS         0
 694 #define ABTS_RESP_COMPL_SUBCODE_ERROR   0x31
 695         uint16_t nport_handle;
 696         uint16_t reserved_1;
 697         uint8_t  reserved_2;
 698         uint8_t  reserved_3:4;
 699         uint8_t  sof_type:4;
 700         uint32_t exchange_address;
 701         struct fcp_hdr_le fcp_hdr_le;
 702         uint8_t reserved_4[8];
 703         uint32_t error_subcode1;
 704 #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM     0x1E
 705         uint32_t error_subcode2;
 706         uint32_t exchange_addr_to_abort;
 707 } __packed;
 708
 709 /********************************************************************\
 710  * Type Definitions used by initiator & target halves
 711 \********************************************************************/
 712
 713 struct qla_tgt_mgmt_cmd;
 714 struct qla_tgt_sess;
 715
 716 /*
 717  * This structure provides a template of function calls that the
 718  * target driver (from within qla_target.c) can issue to the
 719  * target module (tcm_qla2xxx).
 720  */
 721 struct qla_tgt_func_tmpl {
 722
 723         int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
 724                         unsigned char *, uint32_t, int, int, int);
 725         void (*handle_data)(struct qla_tgt_cmd *);
 726         void (*handle_dif_err)(struct qla_tgt_cmd *);
 727         int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, uint32_t, uint8_t,
 728                         uint32_t);
 729         void (*free_cmd)(struct qla_tgt_cmd *);
 730         void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
 731         void (*free_session)(struct qla_tgt_sess *);
 732
 733         int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
 734                                         void *, uint8_t *, uint16_t);
 735         void (*update_sess)(struct qla_tgt_sess *, port_id_t, uint16_t, bool);
 736         struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *,
 737                                                 const uint16_t);
 738         struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *,
 739                                                 const uint8_t *);
 740         void (*clear_nacl_from_fcport_map)(struct qla_tgt_sess *);
 741         void (*put_sess)(struct qla_tgt_sess *);
 742         void (*shutdown_sess)(struct qla_tgt_sess *);
 743 };
 744
 745 int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
 746
 747 #include <target/target_core_base.h>
 748
 749 #define QLA_TGT_TIMEOUT                 10      /* in seconds */
 750
 751 #define QLA_TGT_MAX_HW_PENDING_TIME     60 /* in seconds */
 752
 753 /* Immediate notify status constants */
 754 #define IMM_NTFY_LIP_RESET          0x000E
 755 #define IMM_NTFY_LIP_LINK_REINIT    0x000F
 756 #define IMM_NTFY_IOCB_OVERFLOW      0x0016
 757 #define IMM_NTFY_ABORT_TASK         0x0020
 758 #define IMM_NTFY_PORT_LOGOUT        0x0029
 759 #define IMM_NTFY_PORT_CONFIG        0x002A
 760 #define IMM_NTFY_GLBL_TPRLO         0x002D
 761 #define IMM_NTFY_GLBL_LOGO          0x002E
 762 #define IMM_NTFY_RESOURCE           0x0034
 763 #define IMM_NTFY_MSG_RX             0x0036
 764 #define IMM_NTFY_SRR                0x0045
 765 #define IMM_NTFY_ELS                0x0046
 766
 767 /* Immediate notify task flags */
 768 #define IMM_NTFY_TASK_MGMT_SHIFT    8
 769
 770 #define QLA_TGT_CLEAR_ACA               0x40
 771 #define QLA_TGT_TARGET_RESET            0x20
 772 #define QLA_TGT_LUN_RESET               0x10
 773 #define QLA_TGT_CLEAR_TS                0x04
 774 #define QLA_TGT_ABORT_TS                0x02
 775 #define QLA_TGT_ABORT_ALL_SESS          0xFFFF
 776 #define QLA_TGT_ABORT_ALL               0xFFFE
 777 #define QLA_TGT_NEXUS_LOSS_SESS         0xFFFD
 778 #define QLA_TGT_NEXUS_LOSS              0xFFFC
 779
 780 /* Notify Acknowledge flags */
 781 #define NOTIFY_ACK_RES_COUNT        BIT_8
 782 #define NOTIFY_ACK_CLEAR_LIP_RESET  BIT_5
 783 #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
 784
 785 /* Command's states */
 786 #define QLA_TGT_STATE_NEW               0 /* New command + target processing */
 787 #define QLA_TGT_STATE_NEED_DATA         1 /* target needs data to continue */
 788 #define QLA_TGT_STATE_DATA_IN           2 /* Data arrived + target processing */
 789 #define QLA_TGT_STATE_PROCESSED         3 /* target done processing */
 790
 791
 792 /* Special handles */
 793 #define QLA_TGT_NULL_HANDLE     0
 794 #define QLA_TGT_SKIP_HANDLE     (0xFFFFFFFF & ~CTIO_COMPLETION_HANDLE_MARK)
 795
 796 /* ATIO task_codes field */
 797 #define ATIO_SIMPLE_QUEUE           0
 798 #define ATIO_HEAD_OF_QUEUE          1
 799 #define ATIO_ORDERED_QUEUE          2
 800 #define ATIO_ACA_QUEUE              4
 801 #define ATIO_UNTAGGED               5
 802
 803 /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
 804 #define FC_TM_SUCCESS               0
 805 #define FC_TM_BAD_FCP_DATA          1
 806 #define FC_TM_BAD_CMD               2
 807 #define FC_TM_FCP_DATA_MISMATCH     3
 808 #define FC_TM_REJECT                4
 809 #define FC_TM_FAILED                5
 810
 811 #if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G)
 812 #define pci_dma_lo32(a) (a & 0xffffffff)
 813 #define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff)
 814 #else
 815 #define pci_dma_lo32(a) (a & 0xffffffff)
 816 #define pci_dma_hi32(a) 0
 817 #endif
 818
 819 #define QLA_TGT_SENSE_VALID(sense)  ((sense != NULL) && \
 820                                 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
 821
 822 struct qla_port_24xx_data {
 823         uint8_t port_name[WWN_SIZE];
 824         uint16_t loop_id;
 825         uint16_t reserved;
 826 };
 827
 828 struct qla_tgt {
 829         struct scsi_qla_host *vha;
 830         struct qla_hw_data *ha;
 831
 832         /*
 833          * To sync between IRQ handlers and qlt_target_release(). Needed,
 834          * because req_pkt() can drop/reaquire HW lock inside. Protected by
 835          * HW lock.
 836          */
 837         int irq_cmd_count;
 838         int atio_irq_cmd_count;
 839
 840         int datasegs_per_cmd, datasegs_per_cont, sg_tablesize;
 841
 842         /* Target's flags, serialized by pha->hardware_lock */
 843         unsigned int tgt_enable_64bit_addr:1; /* 64-bits PCI addr enabled */
 844         unsigned int link_reinit_iocb_pending:1;
 845
 846         /*
 847          * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
 848          * OR hardware_lock for reading.
 849          */
 850         int tgt_stop; /* the target mode driver is being stopped */
 851         int tgt_stopped; /* the target mode driver has been stopped */
 852
 853         /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
 854         int sess_count;
 855
 856         /* Protected by hardware_lock. Addition also protected by tgt_mutex. */
 857         struct list_head sess_list;
 858
 859         /* Protected by hardware_lock */
 860         struct list_head del_sess_list;
 861         struct delayed_work sess_del_work;
 862
 863         spinlock_t sess_work_lock;
 864         struct list_head sess_works_list;
 865         struct work_struct sess_work;
 866
 867         struct imm_ntfy_from_isp link_reinit_iocb;
 868         wait_queue_head_t waitQ;
 869         int notify_ack_expected;
 870         int abts_resp_expected;
 871         int modify_lun_expected;
 872
 873         int ctio_srr_id;
 874         int imm_srr_id;
 875         spinlock_t srr_lock;
 876         struct list_head srr_ctio_list;
 877         struct list_head srr_imm_list;
 878         struct work_struct srr_work;
 879
 880         atomic_t tgt_global_resets_count;
 881
 882         struct list_head tgt_list_entry;
 883 };
 884
 885 struct qla_tgt_sess_op {
 886         struct scsi_qla_host *vha;
 887         uint32_t chip_reset;
 888         struct atio_from_isp atio;
 889         struct work_struct work;
 890         struct list_head cmd_list;
 891         bool aborted;
 892 };
 893
 894 enum qla_sess_deletion {
 895         QLA_SESS_DELETION_NONE          = 0,
 896         QLA_SESS_DELETION_PENDING       = 1, /* hopefully we can get rid of
 897                                               * this one */
 898         QLA_SESS_DELETION_IN_PROGRESS   = 2,
 899 };
 900
 901 typedef enum {
 902         QLT_PLOGI_LINK_SAME_WWN,
 903         QLT_PLOGI_LINK_CONFLICT,
 904         QLT_PLOGI_LINK_MAX
 905 } qlt_plogi_link_t;
 906
 907 typedef struct {
 908         struct list_head                list;
 909         struct imm_ntfy_from_isp        iocb;
 910         port_id_t                       id;
 911         int                             ref_count;
 912 } qlt_plogi_ack_t;
 913
 914 /*
 915  * Equivilant to IT Nexus (Initiator-Target)
 916  */
 917 struct qla_tgt_sess {
 918         uint16_t loop_id;
 919         port_id_t s_id;
 920
 921         unsigned int conf_compl_supported:1;
 922         unsigned int deleted:2;
 923         unsigned int local:1;
 924         unsigned int logout_on_delete:1;
 925         unsigned int keep_nport_handle:1;
 926         unsigned int send_els_logo:1;
 927
 928         unsigned char logout_completed;
 929
 930         int generation;
 931
 932         struct se_session *se_sess;
 933         struct scsi_qla_host *vha;
 934         struct qla_tgt *tgt;
 935
 936         struct list_head sess_list_entry;
 937         unsigned long expires;
 938         struct list_head del_list_entry;
 939
 940         uint8_t port_name[WWN_SIZE];
 941         struct work_struct free_work;
 942
 943         qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
 944 };
 945
 946 typedef enum {
 947         /*
 948          * BIT_0 - Atio Arrival / schedule to work
 949          * BIT_1 - qlt_do_work
 950          * BIT_2 - qlt_do work failed
 951          * BIT_3 - xfer rdy/tcm_qla2xxx_write_pending
 952          * BIT_4 - read respond/tcm_qla2xx_queue_data_in
 953          * BIT_5 - status respond / tcm_qla2xx_queue_status
 954          * BIT_6 - tcm request to abort/Term exchange.
 955          *      pre_xmit_response->qlt_send_term_exchange
 956          * BIT_7 - SRR received (qlt_handle_srr->qlt_xmit_response)
 957          * BIT_8 - SRR received (qlt_handle_srr->qlt_rdy_to_xfer)
 958          * BIT_9 - SRR received (qla_handle_srr->qlt_send_term_exchange)
 959          * BIT_10 - Data in - hanlde_data->tcm_qla2xxx_handle_data
 960
 961          * BIT_12 - good completion - qlt_ctio_do_completion -->free_cmd
 962          * BIT_13 - Bad completion -
 963          *      qlt_ctio_do_completion --> qlt_term_ctio_exchange
 964          * BIT_14 - Back end data received/sent.
 965          * BIT_15 - SRR prepare ctio
 966          * BIT_16 - complete free
 967          * BIT_17 - flush - qlt_abort_cmd_on_host_reset
 968          * BIT_18 - completion w/abort status
 969          * BIT_19 - completion w/unknown status
 970          * BIT_20 - tcm_qla2xxx_free_cmd
 971          */
 972         CMD_FLAG_DATA_WORK = BIT_11,
 973         CMD_FLAG_DATA_WORK_FREE = BIT_21,
 974 } cmd_flags_t;
 975
 976 struct qla_tgt_cmd {
 977         struct se_cmd se_cmd;
 978         struct qla_tgt_sess *sess;
 979         int state;
 980         struct work_struct free_work;
 981         struct work_struct work;
 982         /* Sense buffer that will be mapped into outgoing status */
 983         unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
 984
 985         spinlock_t cmd_lock;
 986         /* to save extra sess dereferences */
 987         unsigned int conf_compl_supported:1;
 988         unsigned int sg_mapped:1;
 989         unsigned int free_sg:1;
 990         unsigned int write_data_transferred:1;
 991         unsigned int ctx_dsd_alloced:1;
 992         unsigned int q_full:1;
 993         unsigned int term_exchg:1;
 994         unsigned int cmd_sent_to_fw:1;
 995         unsigned int cmd_in_wq:1;
 996         unsigned int aborted:1;
 997
 998         struct scatterlist *sg; /* cmd data buffer SG vector */
 999         int sg_cnt;             /* SG segments count */
1000         int bufflen;            /* cmd buffer length */
1001         int offset;
1002         uint32_t unpacked_lun;
1003         enum dma_data_direction dma_data_direction;
1004         uint32_t reset_count;
1005
1006         uint16_t loop_id;       /* to save extra sess dereferences */
1007         struct qla_tgt *tgt;    /* to save extra sess dereferences */
1008         struct scsi_qla_host *vha;
1009         struct list_head cmd_list;
1010
1011         struct atio_from_isp atio;
1012         /* t10dif */
1013         struct scatterlist *prot_sg;
1014         uint32_t prot_sg_cnt;
1015         uint32_t blk_sz;
1016         struct crc_context *ctx;
1017
1018         uint64_t jiffies_at_alloc;
1019         uint64_t jiffies_at_free;
1020
1021         cmd_flags_t cmd_flags;
1022 };
1023
1024 struct qla_tgt_sess_work_param {
1025         struct list_head sess_works_list_entry;
1026
1027 #define QLA_TGT_SESS_WORK_ABORT 1
1028 #define QLA_TGT_SESS_WORK_TM    2
1029         int type;
1030
1031         union {
1032                 struct abts_recv_from_24xx abts;
1033                 struct imm_ntfy_from_isp tm_iocb;
1034                 struct atio_from_isp tm_iocb2;
1035         };
1036 };
1037
1038 struct qla_tgt_mgmt_cmd {
1039         uint8_t tmr_func;
1040         uint8_t fc_tm_rsp;
1041         struct qla_tgt_sess *sess;
1042         struct se_cmd se_cmd;
1043         struct work_struct free_work;
1044         unsigned int flags;
1045         uint32_t reset_count;
1046 #define QLA24XX_MGMT_SEND_NACK  1
1047         union {
1048                 struct atio_from_isp atio;
1049                 struct imm_ntfy_from_isp imm_ntfy;
1050                 struct abts_recv_from_24xx abts;
1051         } __packed orig_iocb;
1052 };
1053
1054 struct qla_tgt_prm {
1055         struct qla_tgt_cmd *cmd;
1056         struct qla_tgt *tgt;
1057         void *pkt;
1058         struct scatterlist *sg; /* cmd data buffer SG vector */
1059         unsigned char *sense_buffer;
1060         int seg_cnt;
1061         int req_cnt;
1062         uint16_t rq_result;
1063         uint16_t scsi_status;
1064         int sense_buffer_len;
1065         int residual;
1066         int add_status_pkt;
1067         /* dif */
1068         struct scatterlist *prot_sg;
1069         uint16_t prot_seg_cnt;
1070         uint16_t tot_dsds;
1071 };
1072
1073 struct qla_tgt_srr_imm {
1074         struct list_head srr_list_entry;
1075         int srr_id;
1076         struct imm_ntfy_from_isp imm_ntfy;
1077 };
1078
1079 struct qla_tgt_srr_ctio {
1080         struct list_head srr_list_entry;
1081         int srr_id;
1082         struct qla_tgt_cmd *cmd;
1083 };
1084
1085 /* Check for Switch reserved address */
1086 #define IS_SW_RESV_ADDR(_s_id) \
1087         ((_s_id.b.domain == 0xff) && (_s_id.b.area == 0xfc))
1088
1089 #define QLA_TGT_XMIT_DATA               1
1090 #define QLA_TGT_XMIT_STATUS             2
1091 #define QLA_TGT_XMIT_ALL                (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1092
1093
1094 extern struct qla_tgt_data qla_target;
1095
1096 /*
1097  * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1098  */
1099 extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1100 extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
1101 extern int qlt_lport_register(void *, u64, u64, u64,
1102                         int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1103 extern void qlt_lport_deregister(struct scsi_qla_host *);
1104 extern void qlt_unreg_sess(struct qla_tgt_sess *);
1105 extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1106 extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1107 extern int __init qlt_init(void);
1108 extern void qlt_exit(void);
1109 extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1110
1111 /*
1112  * This macro is used during early initializations when host->active_mode
1113  * is not set. Right now, ha value is ignored.
1114  */
1115 #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1116 extern int ql2x_ini_mode;
1117
1118 static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1119 {
1120         return ha->host->active_mode & MODE_TARGET;
1121 }
1122
1123 static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1124 {
1125         return ha->host->active_mode & MODE_INITIATOR;
1126 }
1127
1128 static inline void qla_reverse_ini_mode(struct scsi_qla_host *ha)
1129 {
1130         if (ha->host->active_mode & MODE_INITIATOR)
1131                 ha->host->active_mode &= ~MODE_INITIATOR;
1132         else
1133                 ha->host->active_mode |= MODE_INITIATOR;
1134 }
1135
1136 static inline uint32_t sid_to_key(const uint8_t *s_id)
1137 {
1138         uint32_t key;
1139
1140         key = (((unsigned long)s_id[0] << 16) |
1141                ((unsigned long)s_id[1] << 8) |
1142                (unsigned long)s_id[2]);
1143         return key;
1144 }
1145
1146 static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
1147 {
1148         memset(p, 0, sizeof(*p));
1149         p->b.domain = s_id[0];
1150         p->b.area = s_id[1];
1151         p->b.al_pa = s_id[2];
1152 }
1153
1154 /*
1155  * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1156  */
1157 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, response_t *);
1158 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1159 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1160 extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1161 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1162 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1163 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1164 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1165 extern void qlt_enable_vha(struct scsi_qla_host *);
1166 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1167 extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *);
1168 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1169 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1170 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1171 extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1172         struct nvram_24xx *);
1173 extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1174         struct init_cb_24xx *);
1175 extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1176         struct init_cb_81xx *);
1177 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1178         struct nvram_81xx *);
1179 extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1180         struct sts_entry_24xx *);
1181 extern void qlt_modify_vp_config(struct scsi_qla_host *,
1182         struct vp_config_entry_24xx *);
1183 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1184 extern int qlt_mem_alloc(struct qla_hw_data *);
1185 extern void qlt_mem_free(struct qla_hw_data *);
1186 extern int qlt_stop_phase1(struct qla_tgt *);
1187 extern void qlt_stop_phase2(struct qla_tgt *);
1188 extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1189 extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1190 extern int qlt_free_qfull_cmds(struct scsi_qla_host *);
1191 extern void qlt_logo_completion_handler(fc_port_t *, int);
1192 extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1193
1194 #endif /* __QLA_TARGET_H */