drivers/scsi/bfa/bfi_ms.h

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 #ifndef __BFI_MS_H__
  19 #define __BFI_MS_H__
  20
  21 #include "bfi.h"
  22 #include "bfa_fc.h"
  23 #include "bfa_defs_svc.h"
  24
  25 #pragma pack(1)
  26
  27 enum bfi_iocfc_h2i_msgs {
  28         BFI_IOCFC_H2I_CFG_REQ           = 1,
  29         BFI_IOCFC_H2I_SET_INTR_REQ      = 2,
  30         BFI_IOCFC_H2I_UPDATEQ_REQ       = 3,
  31 };
  32
  33 enum bfi_iocfc_i2h_msgs {
  34         BFI_IOCFC_I2H_CFG_REPLY         = BFA_I2HM(1),
  35         BFI_IOCFC_I2H_UPDATEQ_RSP       = BFA_I2HM(3),
  36 };
  37
  38 struct bfi_iocfc_cfg_s {
  39         u8      num_cqs;        /*  Number of CQs to be used    */
  40         u8       sense_buf_len; /*  SCSI sense length       */
  41         u16     rsvd_1;
  42         u32     endian_sig;     /*  endian signature of host     */
  43
  44         /*
  45          * Request and response circular queue base addresses, size and
  46          * shadow index pointers.
  47          */
  48         union bfi_addr_u  req_cq_ba[BFI_IOC_MAX_CQS];
  49         union bfi_addr_u  req_shadow_ci[BFI_IOC_MAX_CQS];
  50         __be16    req_cq_elems[BFI_IOC_MAX_CQS];
  51         union bfi_addr_u  rsp_cq_ba[BFI_IOC_MAX_CQS];
  52         union bfi_addr_u  rsp_shadow_pi[BFI_IOC_MAX_CQS];
  53         __be16    rsp_cq_elems[BFI_IOC_MAX_CQS];
  54
  55         union bfi_addr_u  stats_addr;   /*  DMA-able address for stats    */
  56         union bfi_addr_u  cfgrsp_addr;  /*  config response dma address  */
  57         union bfi_addr_u  ioim_snsbase;  /*  IO sense buffer base address */
  58         struct bfa_iocfc_intr_attr_s intr_attr; /*  IOC interrupt attributes */
  59 };
  60
  61 /*
  62  * Boot target wwn information for this port. This contains either the stored
  63  * or discovered boot target port wwns for the port.
  64  */
  65 struct bfi_iocfc_bootwwns {
  66         wwn_t           wwn[BFA_BOOT_BOOTLUN_MAX];
  67         u8              nwwns;
  68         u8              rsvd[7];
  69 };
  70
  71 struct bfi_iocfc_cfgrsp_s {
  72         struct bfa_iocfc_fwcfg_s        fwcfg;
  73         struct bfa_iocfc_intr_attr_s    intr_attr;
  74         struct bfi_iocfc_bootwwns       bootwwns;
  75         struct bfi_pbc_s                pbc_cfg;
  76 };
  77
  78 /*
  79  * BFI_IOCFC_H2I_CFG_REQ message
  80  */
  81 struct bfi_iocfc_cfg_req_s {
  82         struct bfi_mhdr_s      mh;
  83         union bfi_addr_u      ioc_cfg_dma_addr;
  84 };
  85
  86
  87 /*
  88  * BFI_IOCFC_I2H_CFG_REPLY message
  89  */
  90 struct bfi_iocfc_cfg_reply_s {
  91         struct bfi_mhdr_s  mh;          /*  Common msg header     */
  92         u8       cfg_success;   /*  cfg reply status       */
  93         u8       lpu_bm;                /*  LPUs assigned for this IOC */
  94         u8       rsvd[2];
  95 };
  96
  97
  98 /*
  99  * BFI_IOCFC_H2I_SET_INTR_REQ message
 100  */
 101 struct bfi_iocfc_set_intr_req_s {
 102         struct bfi_mhdr_s mh;           /*  common msg header           */
 103         u8              coalesce;       /*  enable intr coalescing      */
 104         u8              rsvd[3];
 105         __be16  delay;          /*  delay timer 0..1125us       */
 106         __be16  latency;        /*  latency timer 0..225us      */
 107 };
 108
 109
 110 /*
 111  * BFI_IOCFC_H2I_UPDATEQ_REQ message
 112  */
 113 struct bfi_iocfc_updateq_req_s {
 114         struct bfi_mhdr_s mh;           /*  common msg header           */
 115         u32 reqq_ba;            /*  reqq base addr              */
 116         u32 rspq_ba;            /*  rspq base addr              */
 117         u32 reqq_sci;           /*  reqq shadow ci              */
 118         u32 rspq_spi;           /*  rspq shadow pi              */
 119 };
 120
 121
 122 /*
 123  * BFI_IOCFC_I2H_UPDATEQ_RSP message
 124  */
 125 struct bfi_iocfc_updateq_rsp_s {
 126         struct bfi_mhdr_s mh;           /*  common msg header   */
 127         u8      status;                 /*  updateq  status     */
 128         u8      rsvd[3];
 129 };
 130
 131
 132 /*
 133  * H2I Messages
 134  */
 135 union bfi_iocfc_h2i_msg_u {
 136         struct bfi_mhdr_s               mh;
 137         struct bfi_iocfc_cfg_req_s      cfg_req;
 138         struct bfi_iocfc_updateq_req_s updateq_req;
 139         u32 mboxmsg[BFI_IOC_MSGSZ];
 140 };
 141
 142
 143 /*
 144  * I2H Messages
 145  */
 146 union bfi_iocfc_i2h_msg_u {
 147         struct bfi_mhdr_s               mh;
 148         struct bfi_iocfc_cfg_reply_s    cfg_reply;
 149         struct bfi_iocfc_updateq_rsp_s updateq_rsp;
 150         u32 mboxmsg[BFI_IOC_MSGSZ];
 151 };
 152
 153
 154 enum bfi_fcport_h2i {
 155         BFI_FCPORT_H2I_ENABLE_REQ               = (1),
 156         BFI_FCPORT_H2I_DISABLE_REQ              = (2),
 157         BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ       = (3),
 158         BFI_FCPORT_H2I_STATS_GET_REQ            = (4),
 159         BFI_FCPORT_H2I_STATS_CLEAR_REQ          = (5),
 160 };
 161
 162
 163 enum bfi_fcport_i2h {
 164         BFI_FCPORT_I2H_ENABLE_RSP               = BFA_I2HM(1),
 165         BFI_FCPORT_I2H_DISABLE_RSP              = BFA_I2HM(2),
 166         BFI_FCPORT_I2H_SET_SVC_PARAMS_RSP       = BFA_I2HM(3),
 167         BFI_FCPORT_I2H_STATS_GET_RSP            = BFA_I2HM(4),
 168         BFI_FCPORT_I2H_STATS_CLEAR_RSP          = BFA_I2HM(5),
 169         BFI_FCPORT_I2H_EVENT                    = BFA_I2HM(6),
 170         BFI_FCPORT_I2H_TRUNK_SCN                = BFA_I2HM(7),
 171         BFI_FCPORT_I2H_ENABLE_AEN               = BFA_I2HM(8),
 172         BFI_FCPORT_I2H_DISABLE_AEN              = BFA_I2HM(9),
 173 };
 174
 175
 176 /*
 177  * Generic REQ type
 178  */
 179 struct bfi_fcport_req_s {
 180         struct bfi_mhdr_s  mh;          /*  msg header                      */
 181         u32        msgtag;      /*  msgtag for reply                */
 182 };
 183
 184 /*
 185  * Generic RSP type
 186  */
 187 struct bfi_fcport_rsp_s {
 188         struct bfi_mhdr_s  mh;          /*  common msg header               */
 189         u8                 status;      /*  port enable status              */
 190         u8                 rsvd[3];
 191         struct  bfa_port_cfg_s port_cfg;/* port configuration   */
 192         u32     msgtag;                 /* msgtag for reply     */
 193 };
 194
 195 /*
 196  * BFI_FCPORT_H2I_ENABLE_REQ
 197  */
 198 struct bfi_fcport_enable_req_s {
 199         struct bfi_mhdr_s  mh;          /*  msg header                      */
 200         u32        rsvd1;
 201         wwn_t              nwwn;        /*  node wwn of physical port       */
 202         wwn_t              pwwn;        /*  port wwn of physical port       */
 203         struct bfa_port_cfg_s port_cfg; /*  port configuration      */
 204         union bfi_addr_u   stats_dma_addr; /*  DMA address for stats        */
 205         u32        msgtag;      /*  msgtag for reply                */
 206         u8      use_flash_cfg;  /* get prot cfg from flash */
 207         u8      rsvd2[3];
 208 };
 209
 210 /*
 211  * BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ
 212  */
 213 struct bfi_fcport_set_svc_params_req_s {
 214         struct bfi_mhdr_s  mh;          /*  msg header */
 215         __be16     tx_bbcredit; /*  Tx credits */
 216         u16        rsvd;
 217 };
 218
 219 /*
 220  * BFI_FCPORT_I2H_EVENT
 221  */
 222 struct bfi_fcport_event_s {
 223         struct bfi_mhdr_s       mh;     /*  common msg header */
 224         struct bfa_port_link_s  link_state;
 225 };
 226
 227 /*
 228  * BFI_FCPORT_I2H_TRUNK_SCN
 229  */
 230 struct bfi_fcport_trunk_link_s {
 231         wwn_t                   trunk_wwn;
 232         u8                      fctl;           /* bfa_trunk_link_fctl_t */
 233         u8                      state;          /* bfa_trunk_link_state_t */
 234         u8                      speed;          /* bfa_port_speed_t */
 235         u8                      rsvd;
 236         __be32          deskew;
 237 };
 238
 239 #define BFI_FCPORT_MAX_LINKS    2
 240 struct bfi_fcport_trunk_scn_s {
 241         struct bfi_mhdr_s       mh;
 242         u8                      trunk_state;    /* bfa_trunk_state_t */
 243         u8                      trunk_speed;    /* bfa_port_speed_t */
 244         u8                      rsvd_a[2];
 245         struct bfi_fcport_trunk_link_s tlink[BFI_FCPORT_MAX_LINKS];
 246 };
 247
 248 /*
 249  * fcport H2I message
 250  */
 251 union bfi_fcport_h2i_msg_u {
 252         struct bfi_mhdr_s                       *mhdr;
 253         struct bfi_fcport_enable_req_s          *penable;
 254         struct bfi_fcport_req_s                 *pdisable;
 255         struct bfi_fcport_set_svc_params_req_s  *psetsvcparams;
 256         struct bfi_fcport_req_s                 *pstatsget;
 257         struct bfi_fcport_req_s                 *pstatsclear;
 258 };
 259
 260 /*
 261  * fcport I2H message
 262  */
 263 union bfi_fcport_i2h_msg_u {
 264         struct bfi_msg_s                        *msg;
 265         struct bfi_fcport_rsp_s                 *penable_rsp;
 266         struct bfi_fcport_rsp_s                 *pdisable_rsp;
 267         struct bfi_fcport_rsp_s                 *psetsvcparams_rsp;
 268         struct bfi_fcport_rsp_s                 *pstatsget_rsp;
 269         struct bfi_fcport_rsp_s                 *pstatsclear_rsp;
 270         struct bfi_fcport_event_s               *event;
 271         struct bfi_fcport_trunk_scn_s           *trunk_scn;
 272 };
 273
 274 enum bfi_fcxp_h2i {
 275         BFI_FCXP_H2I_SEND_REQ = 1,
 276 };
 277
 278 enum bfi_fcxp_i2h {
 279         BFI_FCXP_I2H_SEND_RSP = BFA_I2HM(1),
 280 };
 281
 282 #define BFA_FCXP_MAX_SGES       2
 283
 284 /*
 285  * FCXP send request structure
 286  */
 287 struct bfi_fcxp_send_req_s {
 288         struct bfi_mhdr_s  mh;          /*  Common msg header               */
 289         __be16  fcxp_tag;       /*  driver request tag              */
 290         __be16  max_frmsz;      /*  max send frame size     */
 291         __be16  vf_id;          /*  vsan tag if applicable          */
 292         u16     rport_fw_hndl;  /*  FW Handle for the remote port  */
 293         u8       class;         /*  FC class used for req/rsp       */
 294         u8       rsp_timeout;   /*  timeout in secs, 0-no response */
 295         u8       cts;           /*  continue sequence               */
 296         u8       lp_tag;        /*  lport tag                       */
 297         struct fchs_s   fchs;   /*  request FC header structure    */
 298         __be32  req_len;        /*  request payload length          */
 299         __be32  rsp_maxlen;     /*  max response length expected   */
 300         struct bfi_sge_s   req_sge[BFA_FCXP_MAX_SGES];  /*  request buf    */
 301         struct bfi_sge_s   rsp_sge[BFA_FCXP_MAX_SGES];  /*  response buf   */
 302 };
 303
 304 /*
 305  * FCXP send response structure
 306  */
 307 struct bfi_fcxp_send_rsp_s {
 308         struct bfi_mhdr_s  mh;          /*  Common msg header               */
 309         __be16  fcxp_tag;       /*  send request tag                */
 310         u8       req_status;    /*  request status                  */
 311         u8       rsvd;
 312         __be32  rsp_len;        /*  actual response length          */
 313         __be32  residue_len;    /*  residual response length        */
 314         struct fchs_s   fchs;   /*  response FC header structure   */
 315 };
 316
 317 enum bfi_uf_h2i {
 318         BFI_UF_H2I_BUF_POST = 1,
 319 };
 320
 321 enum bfi_uf_i2h {
 322         BFI_UF_I2H_FRM_RCVD = BFA_I2HM(1),
 323 };
 324
 325 #define BFA_UF_MAX_SGES 2
 326
 327 struct bfi_uf_buf_post_s {
 328         struct bfi_mhdr_s  mh;          /*  Common msg header           */
 329         u16     buf_tag;        /*  buffer tag                  */
 330         __be16  buf_len;        /*  total buffer length */
 331         struct bfi_sge_s   sge[BFA_UF_MAX_SGES]; /*  buffer DMA SGEs    */
 332 };
 333
 334 struct bfi_uf_frm_rcvd_s {
 335         struct bfi_mhdr_s  mh;          /*  Common msg header           */
 336         u16     buf_tag;        /*  buffer tag                  */
 337         u16     rsvd;
 338         u16     frm_len;        /*  received frame length       */
 339         u16     xfr_len;        /*  tranferred length           */
 340 };
 341
 342 enum bfi_lps_h2i_msgs {
 343         BFI_LPS_H2I_LOGIN_REQ   = 1,
 344         BFI_LPS_H2I_LOGOUT_REQ  = 2,
 345         BFI_LPS_H2I_N2N_PID_REQ = 3,
 346 };
 347
 348 enum bfi_lps_i2h_msgs {
 349         BFI_LPS_H2I_LOGIN_RSP   = BFA_I2HM(1),
 350         BFI_LPS_H2I_LOGOUT_RSP  = BFA_I2HM(2),
 351         BFI_LPS_H2I_CVL_EVENT   = BFA_I2HM(3),
 352 };
 353
 354 struct bfi_lps_login_req_s {
 355         struct bfi_mhdr_s  mh;          /*  common msg header           */
 356         u8              lp_tag;
 357         u8              alpa;
 358         __be16          pdu_size;
 359         wwn_t           pwwn;
 360         wwn_t           nwwn;
 361         u8              fdisc;
 362         u8              auth_en;
 363         u8              rsvd[2];
 364 };
 365
 366 struct bfi_lps_login_rsp_s {
 367         struct bfi_mhdr_s  mh;          /*  common msg header           */
 368         u8              lp_tag;
 369         u8              status;
 370         u8              lsrjt_rsn;
 371         u8              lsrjt_expl;
 372         wwn_t           port_name;
 373         wwn_t           node_name;
 374         __be16          bb_credit;
 375         u8              f_port;
 376         u8              npiv_en;
 377         u32     lp_pid:24;
 378         u32     auth_req:8;
 379         mac_t           lp_mac;
 380         mac_t           fcf_mac;
 381         u8              ext_status;
 382         u8              brcd_switch;    /*  attached peer is brcd switch */
 383 };
 384
 385 struct bfi_lps_logout_req_s {
 386         struct bfi_mhdr_s  mh;          /*  common msg header           */
 387         u8              lp_tag;
 388         u8              rsvd[3];
 389         wwn_t           port_name;
 390 };
 391
 392 struct bfi_lps_logout_rsp_s {
 393         struct bfi_mhdr_s  mh;          /*  common msg header           */
 394         u8              lp_tag;
 395         u8              status;
 396         u8              rsvd[2];
 397 };
 398
 399 struct bfi_lps_cvl_event_s {
 400         struct bfi_mhdr_s  mh;          /*  common msg header           */
 401         u8              lp_tag;
 402         u8              rsvd[3];
 403 };
 404
 405 struct bfi_lps_n2n_pid_req_s {
 406         struct bfi_mhdr_s       mh;     /*  common msg header           */
 407         u8      lp_tag;
 408         u32     lp_pid:24;
 409 };
 410
 411 union bfi_lps_h2i_msg_u {
 412         struct bfi_mhdr_s               *msg;
 413         struct bfi_lps_login_req_s      *login_req;
 414         struct bfi_lps_logout_req_s     *logout_req;
 415         struct bfi_lps_n2n_pid_req_s    *n2n_pid_req;
 416 };
 417
 418 union bfi_lps_i2h_msg_u {
 419         struct bfi_msg_s                *msg;
 420         struct bfi_lps_login_rsp_s      *login_rsp;
 421         struct bfi_lps_logout_rsp_s     *logout_rsp;
 422         struct bfi_lps_cvl_event_s      *cvl_event;
 423 };
 424
 425 enum bfi_rport_h2i_msgs {
 426         BFI_RPORT_H2I_CREATE_REQ = 1,
 427         BFI_RPORT_H2I_DELETE_REQ = 2,
 428         BFI_RPORT_H2I_SET_SPEED_REQ  = 3,
 429 };
 430
 431 enum bfi_rport_i2h_msgs {
 432         BFI_RPORT_I2H_CREATE_RSP = BFA_I2HM(1),
 433         BFI_RPORT_I2H_DELETE_RSP = BFA_I2HM(2),
 434         BFI_RPORT_I2H_QOS_SCN    = BFA_I2HM(3),
 435 };
 436
 437 struct bfi_rport_create_req_s {
 438         struct bfi_mhdr_s  mh;          /*  common msg header           */
 439         u16     bfa_handle;     /*  host rport handle           */
 440         __be16  max_frmsz;      /*  max rcv pdu size            */
 441         u32     pid:24, /*  remote port ID              */
 442                 lp_tag:8;       /*  local port tag              */
 443         u32     local_pid:24,   /*  local port ID               */
 444                 cisc:8;
 445         u8      fc_class;       /*  supported FC classes        */
 446         u8      vf_en;          /*  virtual fabric enable       */
 447         u16     vf_id;          /*  virtual fabric ID           */
 448 };
 449
 450 struct bfi_rport_create_rsp_s {
 451         struct bfi_mhdr_s  mh;          /*  common msg header           */
 452         u8              status;         /*  rport creation status       */
 453         u8              rsvd[3];
 454         u16     bfa_handle;     /*  host rport handle           */
 455         u16     fw_handle;      /*  firmware rport handle       */
 456         struct bfa_rport_qos_attr_s qos_attr;  /* QoS Attributes */
 457 };
 458
 459 struct bfa_rport_speed_req_s {
 460         struct bfi_mhdr_s  mh;          /*  common msg header           */
 461         u16     fw_handle;      /*  firmware rport handle       */
 462         u8              speed;          /*  rport's speed via RPSC      */
 463         u8              rsvd;
 464 };
 465
 466 struct bfi_rport_delete_req_s {
 467         struct bfi_mhdr_s  mh;          /*  common msg header           */
 468         u16     fw_handle;      /*  firmware rport handle       */
 469         u16     rsvd;
 470 };
 471
 472 struct bfi_rport_delete_rsp_s {
 473         struct bfi_mhdr_s  mh;          /*  common msg header           */
 474         u16     bfa_handle;     /*  host rport handle           */
 475         u8              status;         /*  rport deletion status       */
 476         u8              rsvd;
 477 };
 478
 479 struct bfi_rport_qos_scn_s {
 480         struct bfi_mhdr_s  mh;          /*  common msg header           */
 481         u16     bfa_handle;     /*  host rport handle           */
 482         u16     rsvd;
 483         struct bfa_rport_qos_attr_s old_qos_attr;  /* Old QoS Attributes */
 484         struct bfa_rport_qos_attr_s new_qos_attr;  /* New QoS Attributes */
 485 };
 486
 487 union bfi_rport_h2i_msg_u {
 488         struct bfi_msg_s                *msg;
 489         struct bfi_rport_create_req_s   *create_req;
 490         struct bfi_rport_delete_req_s   *delete_req;
 491         struct bfi_rport_speed_req_s    *speed_req;
 492 };
 493
 494 union bfi_rport_i2h_msg_u {
 495         struct bfi_msg_s                *msg;
 496         struct bfi_rport_create_rsp_s   *create_rsp;
 497         struct bfi_rport_delete_rsp_s   *delete_rsp;
 498         struct bfi_rport_qos_scn_s      *qos_scn_evt;
 499 };
 500
 501 /*
 502  * Initiator mode I-T nexus interface defines.
 503  */
 504
 505 enum bfi_itnim_h2i {
 506         BFI_ITNIM_H2I_CREATE_REQ = 1,   /*  i-t nexus creation */
 507         BFI_ITNIM_H2I_DELETE_REQ = 2,   /*  i-t nexus deletion */
 508 };
 509
 510 enum bfi_itnim_i2h {
 511         BFI_ITNIM_I2H_CREATE_RSP = BFA_I2HM(1),
 512         BFI_ITNIM_I2H_DELETE_RSP = BFA_I2HM(2),
 513         BFI_ITNIM_I2H_SLER_EVENT = BFA_I2HM(3),
 514 };
 515
 516 struct bfi_itnim_create_req_s {
 517         struct bfi_mhdr_s  mh;          /*  common msg header            */
 518         u16     fw_handle;      /*  f/w handle for itnim         */
 519         u8      class;          /*  FC class for IO              */
 520         u8      seq_rec;        /*  sequence recovery support    */
 521         u8      msg_no;         /*  seq id of the msg            */
 522 };
 523
 524 struct bfi_itnim_create_rsp_s {
 525         struct bfi_mhdr_s  mh;          /*  common msg header            */
 526         u16     bfa_handle;     /*  bfa handle for itnim         */
 527         u8      status;         /*  fcp request status           */
 528         u8      seq_id;         /*  seq id of the msg            */
 529 };
 530
 531 struct bfi_itnim_delete_req_s {
 532         struct bfi_mhdr_s  mh;          /*  common msg header            */
 533         u16     fw_handle;      /*  f/w itnim handle             */
 534         u8      seq_id;         /*  seq id of the msg            */
 535         u8      rsvd;
 536 };
 537
 538 struct bfi_itnim_delete_rsp_s {
 539         struct bfi_mhdr_s  mh;          /*  common msg header            */
 540         u16     bfa_handle;     /*  bfa handle for itnim         */
 541         u8      status;         /*  fcp request status           */
 542         u8      seq_id;         /*  seq id of the msg            */
 543 };
 544
 545 struct bfi_itnim_sler_event_s {
 546         struct bfi_mhdr_s  mh;          /*  common msg header            */
 547         u16     bfa_handle;     /*  bfa handle for itnim         */
 548         u16     rsvd;
 549 };
 550
 551 union bfi_itnim_h2i_msg_u {
 552         struct bfi_itnim_create_req_s *create_req;
 553         struct bfi_itnim_delete_req_s *delete_req;
 554         struct bfi_msg_s        *msg;
 555 };
 556
 557 union bfi_itnim_i2h_msg_u {
 558         struct bfi_itnim_create_rsp_s *create_rsp;
 559         struct bfi_itnim_delete_rsp_s *delete_rsp;
 560         struct bfi_itnim_sler_event_s *sler_event;
 561         struct bfi_msg_s        *msg;
 562 };
 563
 564 /*
 565  * Initiator mode IO interface defines.
 566  */
 567
 568 enum bfi_ioim_h2i {
 569         BFI_IOIM_H2I_IOABORT_REQ = 1,   /*  IO abort request     */
 570         BFI_IOIM_H2I_IOCLEANUP_REQ = 2, /*  IO cleanup request   */
 571 };
 572
 573 enum bfi_ioim_i2h {
 574         BFI_IOIM_I2H_IO_RSP = BFA_I2HM(1),      /*  non-fp IO response   */
 575         BFI_IOIM_I2H_IOABORT_RSP = BFA_I2HM(2), /*  ABORT rsp    */
 576 };
 577
 578 /*
 579  * IO command DIF info
 580  */
 581 struct bfi_ioim_dif_s {
 582         u32     dif_info[4];
 583 };
 584
 585 /*
 586  * FCP IO messages overview
 587  *
 588  * @note
 589  * - Max CDB length supported is 64 bytes.
 590  * - SCSI Linked commands and SCSI bi-directional Commands not
 591  *      supported.
 592  *
 593  */
 594 struct bfi_ioim_req_s {
 595         struct bfi_mhdr_s  mh;          /*  Common msg header            */
 596         __be16  io_tag;         /*  I/O tag                      */
 597         u16     rport_hdl;      /*  itnim/rport firmware handle */
 598         struct fcp_cmnd_s       cmnd;   /*  IO request info     */
 599
 600         /*
 601          * SG elements array within the IO request must be double word
 602          * aligned. This aligment is required to optimize SGM setup for the IO.
 603          */
 604         struct bfi_sge_s        sges[BFI_SGE_INLINE_MAX];
 605         u8      io_timeout;
 606         u8      dif_en;
 607         u8      rsvd_a[2];
 608         struct bfi_ioim_dif_s  dif;
 609 };
 610
 611 /*
 612  *      This table shows various IO status codes from firmware and their
 613  *      meaning. Host driver can use these status codes to further process
 614  *      IO completions.
 615  *
 616  *      BFI_IOIM_STS_OK         : IO completed with error free SCSI &
 617  *                                      transport status.
 618  *                                       io-tag can be reused.
 619  *
 620  *      BFA_IOIM_STS_SCSI_ERR           : IO completed with scsi error.
 621  *      - io-tag can be reused.
 622  *
 623  *      BFI_IOIM_STS_HOST_ABORTED       : IO was aborted successfully due to
 624  *                                              host request.
 625  *                                      - io-tag cannot be reused yet.
 626  *
 627  *      BFI_IOIM_STS_ABORTED            : IO was aborted successfully
 628  *                                              internally by f/w.
 629  *                                      - io-tag cannot be reused yet.
 630  *
 631  *      BFI_IOIM_STS_TIMEDOUT   : IO timedout and ABTS/RRQ is happening
 632  *                                      in the firmware and
 633  *                                      - io-tag cannot be reused yet.
 634  *
 635  *      BFI_IOIM_STS_SQER_NEEDED        : Firmware could not recover the IO
 636  *                                        with sequence level error
 637  *      logic and hence host needs to retry
 638  *                                        this IO with a different IO tag
 639  *                                      - io-tag cannot be used yet.
 640  *
 641  *      BFI_IOIM_STS_NEXUS_ABORT        : Second Level Error Recovery from host
 642  *                                        is required because 2 consecutive ABTS
 643  *                                        timedout and host needs logout and
 644  *                                        re-login with the target
 645  *                                      - io-tag cannot be used yet.
 646  *
 647  *      BFI_IOIM_STS_UNDERRUN   : IO completed with SCSI status good,
 648  *                                        but the data tranferred is less than
 649  *                                        the fcp data length in the command.
 650  *                                        ex. SCSI INQUIRY where transferred
 651  *                                        data length and residue count in FCP
 652  *                                        response accounts for total fcp-dl
 653  *                                        - io-tag can be reused.
 654  *
 655  *      BFI_IOIM_STS_OVERRUN    : IO completed with SCSI status good,
 656  *                                        but the data transerred is more than
 657  *                                        fcp data length in the command. ex.
 658  *                                        TAPE IOs where blocks can of unequal
 659  *                                        lengths.
 660  *                                      - io-tag can be reused.
 661  *
 662  *      BFI_IOIM_STS_RES_FREE   : Firmware has completed using io-tag
 663  *                                        during abort process
 664  *                                      - io-tag can be reused.
 665  *
 666  *      BFI_IOIM_STS_PROTO_ERR  : Firmware detected a protocol error.
 667  *                                        ex target sent more data than
 668  *                                        requested, or there was data frame
 669  *                                        loss and other reasons
 670  *                                      - io-tag cannot be used yet.
 671  *
 672  *      BFI_IOIM_STS_DIF_ERR    : Firwmare detected DIF error. ex: DIF
 673  *                                      CRC err or Ref Tag err or App tag err.
 674  *                                      - io-tag can be reused.
 675  *
 676  *      BFA_IOIM_STS_TSK_MGT_ABORT      : IO was aborted because of Task
 677  *                                        Management command from the host
 678  *                                        - io-tag can be reused.
 679  *
 680  *      BFI_IOIM_STS_UTAG               : Firmware does not know about this
 681  *                                        io_tag.
 682  *                                      - io-tag can be reused.
 683  */
 684 enum bfi_ioim_status {
 685         BFI_IOIM_STS_OK = 0,
 686         BFI_IOIM_STS_HOST_ABORTED = 1,
 687         BFI_IOIM_STS_ABORTED = 2,
 688         BFI_IOIM_STS_TIMEDOUT = 3,
 689         BFI_IOIM_STS_RES_FREE = 4,
 690         BFI_IOIM_STS_SQER_NEEDED = 5,
 691         BFI_IOIM_STS_PROTO_ERR = 6,
 692         BFI_IOIM_STS_UTAG = 7,
 693         BFI_IOIM_STS_PATHTOV = 8,
 694 };
 695
 696 #define BFI_IOIM_SNSLEN (256)
 697 /*
 698  * I/O response message
 699  */
 700 struct bfi_ioim_rsp_s {
 701         struct bfi_mhdr_s       mh;     /*  common msg header           */
 702         __be16  io_tag;         /*  completed IO tag             */
 703         u16     bfa_rport_hndl; /*  releated rport handle        */
 704         u8      io_status;      /*  IO completion status         */
 705         u8      reuse_io_tag;   /*  IO tag can be reused        */
 706         u16     abort_tag;      /*  host abort request tag      */
 707         u8              scsi_status;    /*  scsi status from target      */
 708         u8              sns_len;        /*  scsi sense length            */
 709         u8              resid_flags;    /*  IO residue flags             */
 710         u8              rsvd_a;
 711         __be32  residue;        /*  IO residual length in bytes */
 712         u32     rsvd_b[3];
 713 };
 714
 715 struct bfi_ioim_abort_req_s {
 716         struct bfi_mhdr_s  mh;  /*  Common msg header  */
 717         __be16  io_tag; /*  I/O tag     */
 718         u16     abort_tag;      /*  unique request tag */
 719 };
 720
 721 /*
 722  * Initiator mode task management command interface defines.
 723  */
 724
 725 enum bfi_tskim_h2i {
 726         BFI_TSKIM_H2I_TM_REQ    = 1, /*  task-mgmt command      */
 727         BFI_TSKIM_H2I_ABORT_REQ = 2, /*  task-mgmt command      */
 728 };
 729
 730 enum bfi_tskim_i2h {
 731         BFI_TSKIM_I2H_TM_RSP = BFA_I2HM(1),
 732 };
 733
 734 struct bfi_tskim_req_s {
 735         struct bfi_mhdr_s  mh;  /*  Common msg header   */
 736         __be16  tsk_tag;        /*  task management tag */
 737         u16     itn_fhdl;       /*  itn firmware handle */
 738         struct  scsi_lun lun;   /*  LU number   */
 739         u8      tm_flags;       /*  see enum fcp_tm_cmnd        */
 740         u8      t_secs; /*  Timeout value in seconds    */
 741         u8      rsvd[2];
 742 };
 743
 744 struct bfi_tskim_abortreq_s {
 745         struct bfi_mhdr_s  mh;  /*  Common msg header   */
 746         __be16  tsk_tag;        /*  task management tag */
 747         u16     rsvd;
 748 };
 749
 750 enum bfi_tskim_status {
 751         /*
 752          * Following are FCP-4 spec defined status codes,
 753          * **DO NOT CHANGE THEM **
 754          */
 755         BFI_TSKIM_STS_OK        = 0,
 756         BFI_TSKIM_STS_NOT_SUPP = 4,
 757         BFI_TSKIM_STS_FAILED    = 5,
 758
 759         /*
 760          * Defined by BFA
 761          */
 762         BFI_TSKIM_STS_TIMEOUT  = 10,    /*  TM request timedout */
 763         BFI_TSKIM_STS_ABORTED  = 11,    /*  Aborted on host request */
 764 };
 765
 766 struct bfi_tskim_rsp_s {
 767         struct bfi_mhdr_s  mh;          /*  Common msg header            */
 768         __be16  tsk_tag;        /*  task mgmt cmnd tag           */
 769         u8      tsk_status;     /*  @ref bfi_tskim_status */
 770         u8      rsvd;
 771 };
 772
 773 #pragma pack()
 774
 775 #endif /* __BFI_MS_H__ */