linux/drivers/scsi/qla2xxx/qla_target.h
<<
>>
Prefs
   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 */
 139struct 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 */
 210struct 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
 261struct 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
 276struct 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
 301struct 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 */
 329struct 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
 374static 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. */
 385static 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
 391static 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
 406struct 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 */
 454struct 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 */
 501struct 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 */
 535struct 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 */
 572struct 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
 591struct 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
 603struct 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 */
 618struct 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 */
 648struct 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
 675struct qla_tgt_mgmt_cmd;
 676struct fc_port;
 677struct 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 */
 684struct 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
 711int 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
 777struct qla_port_24xx_data {
 778        uint8_t port_name[WWN_SIZE];
 779        uint16_t loop_id;
 780        uint16_t reserved;
 781};
 782
 783struct qla_qpair_hint {
 784        struct list_head hint_elem;
 785        struct qla_qpair *qpair;
 786        u16 cpuid;
 787        uint8_t cmd_cnt;
 788};
 789
 790struct 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
 833struct 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
 843enum 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
 867struct 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
 932        uint64_t jiffies_at_alloc;
 933        uint64_t jiffies_at_free;
 934
 935        enum trace_flags trc_flags;
 936};
 937
 938struct qla_tgt_sess_work_param {
 939        struct list_head sess_works_list_entry;
 940
 941#define QLA_TGT_SESS_WORK_ABORT 1
 942#define QLA_TGT_SESS_WORK_TM    2
 943        int type;
 944
 945        union {
 946                struct abts_recv_from_24xx abts;
 947                struct imm_ntfy_from_isp tm_iocb;
 948                struct atio_from_isp tm_iocb2;
 949        };
 950};
 951
 952struct qla_tgt_mgmt_cmd {
 953        uint8_t cmd_type;
 954        uint8_t pad[3];
 955        uint16_t tmr_func;
 956        uint8_t fc_tm_rsp;
 957        uint8_t abort_io_attr;
 958        struct fc_port *sess;
 959        struct qla_qpair *qpair;
 960        struct scsi_qla_host *vha;
 961        struct se_cmd se_cmd;
 962        struct work_struct free_work;
 963        unsigned int flags;
 964#define QLA24XX_MGMT_SEND_NACK  BIT_0
 965#define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1
 966        uint32_t reset_count;
 967        struct work_struct work;
 968        uint64_t unpacked_lun;
 969        union {
 970                struct atio_from_isp atio;
 971                struct imm_ntfy_from_isp imm_ntfy;
 972                struct abts_recv_from_24xx abts;
 973        } __packed orig_iocb;
 974};
 975
 976struct qla_tgt_prm {
 977        struct qla_tgt_cmd *cmd;
 978        struct qla_tgt *tgt;
 979        void *pkt;
 980        struct scatterlist *sg; /* cmd data buffer SG vector */
 981        unsigned char *sense_buffer;
 982        int seg_cnt;
 983        int req_cnt;
 984        uint16_t rq_result;
 985        int sense_buffer_len;
 986        int residual;
 987        int add_status_pkt;
 988        /* dif */
 989        struct scatterlist *prot_sg;
 990        uint16_t prot_seg_cnt;
 991        uint16_t tot_dsds;
 992};
 993
 994/* Check for Switch reserved address */
 995#define IS_SW_RESV_ADDR(_s_id) \
 996        ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
 997
 998#define QLA_TGT_XMIT_DATA               1
 999#define QLA_TGT_XMIT_STATUS             2
1000#define QLA_TGT_XMIT_ALL                (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1001
1002
1003extern struct qla_tgt_data qla_target;
1004
1005/*
1006 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1007 */
1008extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1009extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
1010extern int qlt_lport_register(void *, u64, u64, u64,
1011                        int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1012extern void qlt_lport_deregister(struct scsi_qla_host *);
1013extern void qlt_unreg_sess(struct fc_port *);
1014extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1015extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1016extern int __init qlt_init(void);
1017extern void qlt_exit(void);
1018extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1019extern void qlt_free_session_done(struct work_struct *);
1020/*
1021 * This macro is used during early initializations when host->active_mode
1022 * is not set. Right now, ha value is ignored.
1023 */
1024#define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1025
1026extern int ql2x_ini_mode;
1027
1028static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1029{
1030        return ha->host->active_mode == MODE_TARGET;
1031}
1032
1033static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1034{
1035        return ha->host->active_mode == MODE_INITIATOR;
1036}
1037
1038static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
1039{
1040        return (ha->host->active_mode == MODE_DUAL);
1041}
1042
1043static inline uint32_t sid_to_key(const uint8_t *s_id)
1044{
1045        uint32_t key;
1046
1047        key = (((unsigned long)s_id[0] << 16) |
1048               ((unsigned long)s_id[1] << 8) |
1049               (unsigned long)s_id[2]);
1050        return key;
1051}
1052
1053static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
1054{
1055        memset(p, 0, sizeof(*p));
1056        p->b.domain = s_id[0];
1057        p->b.area = s_id[1];
1058        p->b.al_pa = s_id[2];
1059}
1060
1061/*
1062 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1063 */
1064extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
1065        response_t *);
1066extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1067extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1068extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1069extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1070extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1071extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1072extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1073extern void qlt_enable_vha(struct scsi_qla_host *);
1074extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1075extern u8 qlt_rff_id(struct scsi_qla_host *);
1076extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1077extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1078extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1079extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1080        struct nvram_24xx *);
1081extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1082        struct init_cb_24xx *);
1083extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1084        struct init_cb_81xx *);
1085extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1086        struct nvram_81xx *);
1087extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1088        struct sts_entry_24xx *);
1089extern void qlt_modify_vp_config(struct scsi_qla_host *,
1090        struct vp_config_entry_24xx *);
1091extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1092extern int qlt_mem_alloc(struct qla_hw_data *);
1093extern void qlt_mem_free(struct qla_hw_data *);
1094extern int qlt_stop_phase1(struct qla_tgt *);
1095extern void qlt_stop_phase2(struct qla_tgt *);
1096extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1097extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1098extern int qlt_free_qfull_cmds(struct qla_qpair *);
1099extern void qlt_logo_completion_handler(fc_port_t *, int);
1100extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1101
1102void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
1103    uint8_t, uint8_t, uint8_t);
1104extern void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *,
1105    struct qla_tgt_cmd *);
1106
1107#endif /* __QLA_TARGET_H */
1108