drivers/scsi/be2iscsi/be_cmds.h

   1 /**
   2  * Copyright (C) 2005 - 2009 ServerEngines
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@serverengines.com
  12  *
  13  * ServerEngines
  14  * 209 N. Fair Oaks Ave
  15  * Sunnyvale, CA 94085
  16  */
  17
  18 #ifndef BEISCSI_CMDS_H
  19 #define BEISCSI_CMDS_H
  20
  21 /**
  22  * The driver sends configuration and managements command requests to the
  23  * firmware in the BE. These requests are communicated to the processor
  24  * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
  25  * WRB inside a MAILBOX.
  26  * The commands are serviced by the ARM processor in the BladeEngine's MPU.
  27  */
  28 struct be_sge {
  29         u32 pa_lo;
  30         u32 pa_hi;
  31         u32 len;
  32 };
  33
  34 #define MCC_WRB_SGE_CNT_SHIFT 3 /* bits 3 - 7 of dword 0 */
  35 #define MCC_WRB_SGE_CNT_MASK 0x1F       /* bits 3 - 7 of dword 0 */
  36 struct be_mcc_wrb {
  37         u32 embedded;           /* dword 0 */
  38         u32 payload_length;     /* dword 1 */
  39         u32 tag0;               /* dword 2 */
  40         u32 tag1;               /* dword 3 */
  41         u32 rsvd;               /* dword 4 */
  42         union {
  43                 u8 embedded_payload[236];       /* used by embedded cmds */
  44                 struct be_sge sgl[19];  /* used by non-embedded cmds */
  45         } payload;
  46 };
  47
  48 #define CQE_FLAGS_VALID_MASK (1 << 31)
  49 #define CQE_FLAGS_ASYNC_MASK (1 << 30)
  50
  51 /* Completion Status */
  52 #define MCC_STATUS_SUCCESS 0x0
  53
  54 #define CQE_STATUS_COMPL_MASK 0xFFFF
  55 #define CQE_STATUS_COMPL_SHIFT 0        /* bits 0 - 15 */
  56 #define CQE_STATUS_EXTD_MASK 0xFFFF
  57 #define CQE_STATUS_EXTD_SHIFT 0         /* bits 0 - 15 */
  58
  59 struct be_mcc_compl {
  60         u32 status;             /* dword 0 */
  61         u32 tag0;               /* dword 1 */
  62         u32 tag1;               /* dword 2 */
  63         u32 flags;              /* dword 3 */
  64 };
  65
  66 /********* Mailbox door bell *************/
  67 /**
  68  * Used for driver communication with the FW.
  69  * The software must write this register twice to post any command. First,
  70  * it writes the register with hi=1 and the upper bits of the physical address
  71  * for the MAILBOX structure. Software must poll the ready bit until this
  72  * is acknowledged. Then, sotware writes the register with hi=0 with the lower
  73  * bits in the address. It must poll the ready bit until the command is
  74  * complete. Upon completion, the MAILBOX will contain a valid completion
  75  * queue entry.
  76  */
  77 #define MPU_MAILBOX_DB_OFFSET   0x160
  78 #define MPU_MAILBOX_DB_RDY_MASK 0x1     /* bit 0 */
  79 #define MPU_MAILBOX_DB_HI_MASK  0x2     /* bit 1 */
  80
  81 /********** MPU semphore ******************/
  82 #define MPU_EP_SEMAPHORE_OFFSET 0xac
  83 #define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
  84 #define EP_SEMAPHORE_POST_ERR_MASK 0x1
  85 #define EP_SEMAPHORE_POST_ERR_SHIFT 31
  86
  87 /********** MCC door bell ************/
  88 #define DB_MCCQ_OFFSET 0x140
  89 #define DB_MCCQ_RING_ID_MASK 0x7FF              /* bits 0 - 10 */
  90 /* Number of entries posted */
  91 #define DB_MCCQ_NUM_POSTED_SHIFT 16             /* bits 16 - 29 */
  92
  93 /* MPU semphore POST stage values */
  94 #define POST_STAGE_ARMFW_RDY            0xc000  /* FW is done with POST */
  95
  96 /**
  97  * When the async bit of mcc_compl is set, the last 4 bytes of
  98  * mcc_compl is interpreted as follows:
  99  */
 100 #define ASYNC_TRAILER_EVENT_CODE_SHIFT  8       /* bits 8 - 15 */
 101 #define ASYNC_TRAILER_EVENT_CODE_MASK   0xFF
 102 #define ASYNC_EVENT_CODE_LINK_STATE     0x1
 103 struct be_async_event_trailer {
 104         u32 code;
 105 };
 106
 107 enum {
 108         ASYNC_EVENT_LINK_DOWN = 0x0,
 109         ASYNC_EVENT_LINK_UP = 0x1
 110 };
 111
 112 /**
 113  * When the event code of an async trailer is link-state, the mcc_compl
 114  * must be interpreted as follows
 115  */
 116 struct be_async_event_link_state {
 117         u8 physical_port;
 118         u8 port_link_status;
 119         u8 port_duplex;
 120         u8 port_speed;
 121         u8 port_fault;
 122         u8 rsvd0[7];
 123         struct be_async_event_trailer trailer;
 124 } __packed;
 125
 126 struct be_mcc_mailbox {
 127         struct be_mcc_wrb wrb;
 128         struct be_mcc_compl compl;
 129 };
 130
 131 /* Type of subsystems supported by FW */
 132 #define CMD_SUBSYSTEM_COMMON    0x1
 133 #define CMD_SUBSYSTEM_ISCSI     0x2
 134 #define CMD_SUBSYSTEM_ETH       0x3
 135 #define CMD_SUBSYSTEM_ISCSI_INI 0x6
 136 #define CMD_COMMON_TCP_UPLOAD   0x1
 137
 138 /**
 139  * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
 140  * These opcodes are unique for each subsystem defined above
 141  */
 142 #define OPCODE_COMMON_CQ_CREATE                         12
 143 #define OPCODE_COMMON_EQ_CREATE                         13
 144 #define OPCODE_COMMON_MCC_CREATE                        21
 145 #define OPCODE_COMMON_GET_CNTL_ATTRIBUTES               32
 146 #define OPCODE_COMMON_GET_FW_VERSION                    35
 147 #define OPCODE_COMMON_MODIFY_EQ_DELAY                   41
 148 #define OPCODE_COMMON_FIRMWARE_CONFIG                   42
 149 #define OPCODE_COMMON_MCC_DESTROY                       53
 150 #define OPCODE_COMMON_CQ_DESTROY                        54
 151 #define OPCODE_COMMON_EQ_DESTROY                        55
 152 #define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG             58
 153 #define OPCODE_COMMON_FUNCTION_RESET                    61
 154
 155 /**
 156  * LIST of opcodes that are common between Initiator and Target
 157  * used by CMD_SUBSYSTEM_ISCSI
 158  * These opcodes are unique for each subsystem defined above
 159  */
 160 #define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES          2
 161 #define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
 162 #define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG         7
 163 #define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
 164 #define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
 165 #define OPCODE_COMMON_ISCSI_DEFQ_DESTROY                65
 166 #define OPCODE_COMMON_ISCSI_WRBQ_CREATE                 66
 167 #define OPCODE_COMMON_ISCSI_WRBQ_DESTROY                67
 168
 169 struct be_cmd_req_hdr {
 170         u8 opcode;              /* dword 0 */
 171         u8 subsystem;           /* dword 0 */
 172         u8 port_number;         /* dword 0 */
 173         u8 domain;              /* dword 0 */
 174         u32 timeout;            /* dword 1 */
 175         u32 request_length;     /* dword 2 */
 176         u32 rsvd;               /* dword 3 */
 177 };
 178
 179 struct be_cmd_resp_hdr {
 180         u32 info;               /* dword 0 */
 181         u32 status;             /* dword 1 */
 182         u32 response_length;    /* dword 2 */
 183         u32 actual_resp_len;    /* dword 3 */
 184 };
 185
 186 struct phys_addr {
 187         u32 lo;
 188         u32 hi;
 189 };
 190
 191 /**************************
 192  * BE Command definitions *
 193  **************************/
 194
 195 /**
 196  * Pseudo amap definition in which each bit of the actual structure is defined
 197  * as a byte - used to calculate offset/shift/mask of each field
 198  */
 199 struct amap_eq_context {
 200         u8 cidx[13];            /* dword 0 */
 201         u8 rsvd0[3];            /* dword 0 */
 202         u8 epidx[13];           /* dword 0 */
 203         u8 valid;               /* dword 0 */
 204         u8 rsvd1;               /* dword 0 */
 205         u8 size;                /* dword 0 */
 206         u8 pidx[13];            /* dword 1 */
 207         u8 rsvd2[3];            /* dword 1 */
 208         u8 pd[10];              /* dword 1 */
 209         u8 count[3];            /* dword 1 */
 210         u8 solevent;            /* dword 1 */
 211         u8 stalled;             /* dword 1 */
 212         u8 armed;               /* dword 1 */
 213         u8 rsvd3[4];            /* dword 2 */
 214         u8 func[8];             /* dword 2 */
 215         u8 rsvd4;               /* dword 2 */
 216         u8 delaymult[10];       /* dword 2 */
 217         u8 rsvd5[2];            /* dword 2 */
 218         u8 phase[2];            /* dword 2 */
 219         u8 nodelay;             /* dword 2 */
 220         u8 rsvd6[4];            /* dword 2 */
 221         u8 rsvd7[32];           /* dword 3 */
 222 } __packed;
 223
 224 struct be_cmd_req_eq_create {
 225         struct be_cmd_req_hdr hdr;      /* dw[4] */
 226         u16 num_pages;          /* sword */
 227         u16 rsvd0;              /* sword */
 228         u8 context[sizeof(struct amap_eq_context) / 8]; /* dw[4] */
 229         struct phys_addr pages[8];
 230 } __packed;
 231
 232 struct be_cmd_resp_eq_create {
 233         struct be_cmd_resp_hdr resp_hdr;
 234         u16 eq_id;              /* sword */
 235         u16 rsvd0;              /* sword */
 236 } __packed;
 237
 238 struct mac_addr {
 239         u16 size_of_struct;
 240         u8 addr[ETH_ALEN];
 241 } __packed;
 242
 243 struct be_cmd_req_mac_query {
 244         struct be_cmd_req_hdr hdr;
 245         u8 type;
 246         u8 permanent;
 247         u16 if_id;
 248 } __packed;
 249
 250 struct be_cmd_resp_mac_query {
 251         struct be_cmd_resp_hdr hdr;
 252         struct mac_addr mac;
 253 };
 254
 255 /******************** Create CQ ***************************/
 256 /**
 257  * Pseudo amap definition in which each bit of the actual structure is defined
 258  * as a byte - used to calculate offset/shift/mask of each field
 259  */
 260 struct amap_cq_context {
 261         u8 cidx[11];            /* dword 0 */
 262         u8 rsvd0;               /* dword 0 */
 263         u8 coalescwm[2];        /* dword 0 */
 264         u8 nodelay;             /* dword 0 */
 265         u8 epidx[11];           /* dword 0 */
 266         u8 rsvd1;               /* dword 0 */
 267         u8 count[2];            /* dword 0 */
 268         u8 valid;               /* dword 0 */
 269         u8 solevent;            /* dword 0 */
 270         u8 eventable;           /* dword 0 */
 271         u8 pidx[11];            /* dword 1 */
 272         u8 rsvd2;               /* dword 1 */
 273         u8 pd[10];              /* dword 1 */
 274         u8 eqid[8];             /* dword 1 */
 275         u8 stalled;             /* dword 1 */
 276         u8 armed;               /* dword 1 */
 277         u8 rsvd3[4];            /* dword 2 */
 278         u8 func[8];             /* dword 2 */
 279         u8 rsvd4[20];           /* dword 2 */
 280         u8 rsvd5[32];           /* dword 3 */
 281 } __packed;
 282
 283 struct be_cmd_req_cq_create {
 284         struct be_cmd_req_hdr hdr;
 285         u16 num_pages;
 286         u16 rsvd0;
 287         u8 context[sizeof(struct amap_cq_context) / 8];
 288         struct phys_addr pages[4];
 289 } __packed;
 290
 291 struct be_cmd_resp_cq_create {
 292         struct be_cmd_resp_hdr hdr;
 293         u16 cq_id;
 294         u16 rsvd0;
 295 } __packed;
 296
 297 /******************** Create MCCQ ***************************/
 298 /**
 299  * Pseudo amap definition in which each bit of the actual structure is defined
 300  * as a byte - used to calculate offset/shift/mask of each field
 301  */
 302 struct amap_mcc_context {
 303         u8 con_index[14];
 304         u8 rsvd0[2];
 305         u8 ring_size[4];
 306         u8 fetch_wrb;
 307         u8 fetch_r2t;
 308         u8 cq_id[10];
 309         u8 prod_index[14];
 310         u8 fid[8];
 311         u8 pdid[9];
 312         u8 valid;
 313         u8 rsvd1[32];
 314         u8 rsvd2[32];
 315 } __packed;
 316
 317 struct be_cmd_req_mcc_create {
 318         struct be_cmd_req_hdr hdr;
 319         u16 num_pages;
 320         u16 rsvd0;
 321         u8 context[sizeof(struct amap_mcc_context) / 8];
 322         struct phys_addr pages[8];
 323 } __packed;
 324
 325 struct be_cmd_resp_mcc_create {
 326         struct be_cmd_resp_hdr hdr;
 327         u16 id;
 328         u16 rsvd0;
 329 } __packed;
 330
 331 /******************** Q Destroy  ***************************/
 332 /* Type of Queue to be destroyed */
 333 enum {
 334         QTYPE_EQ = 1,
 335         QTYPE_CQ,
 336         QTYPE_MCCQ,
 337         QTYPE_WRBQ,
 338         QTYPE_DPDUQ,
 339         QTYPE_SGL
 340 };
 341
 342 struct be_cmd_req_q_destroy {
 343         struct be_cmd_req_hdr hdr;
 344         u16 id;
 345         u16 bypass_flush;       /* valid only for rx q destroy */
 346 } __packed;
 347
 348 struct macaddr {
 349         u8 byte[ETH_ALEN];
 350 };
 351
 352 struct be_cmd_req_mcast_mac_config {
 353         struct be_cmd_req_hdr hdr;
 354         u16 num_mac;
 355         u8 promiscuous;
 356         u8 interface_id;
 357         struct macaddr mac[32];
 358 } __packed;
 359
 360 static inline void *embedded_payload(struct be_mcc_wrb *wrb)
 361 {
 362         return wrb->payload.embedded_payload;
 363 }
 364
 365 static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
 366 {
 367         return &wrb->payload.sgl[0];
 368 }
 369
 370 /******************** Modify EQ Delay *******************/
 371 struct be_cmd_req_modify_eq_delay {
 372         struct be_cmd_req_hdr hdr;
 373         u32 num_eq;
 374         struct {
 375                 u32 eq_id;
 376                 u32 phase;
 377                 u32 delay_multiplier;
 378         } delay[8];
 379 } __packed;
 380
 381 /******************** Get MAC ADDR *******************/
 382
 383 #define ETH_ALEN        6
 384
 385
 386 struct be_cmd_req_get_mac_addr {
 387         struct be_cmd_req_hdr hdr;
 388         u32 nic_port_count;
 389         u32 speed;
 390         u32 max_speed;
 391         u32 link_state;
 392         u32 max_frame_size;
 393         u16 size_of_structure;
 394         u8 mac_address[ETH_ALEN];
 395         u32 rsvd[23];
 396 };
 397
 398 struct be_cmd_resp_get_mac_addr {
 399         struct be_cmd_resp_hdr hdr;
 400         u32 nic_port_count;
 401         u32 speed;
 402         u32 max_speed;
 403         u32 link_state;
 404         u32 max_frame_size;
 405         u16 size_of_structure;
 406         u8 mac_address[6];
 407         u32 rsvd[23];
 408 };
 409
 410 int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
 411                           struct be_queue_info *eq, int eq_delay);
 412
 413 int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
 414                           struct be_queue_info *cq, struct be_queue_info *eq,
 415                           bool sol_evts, bool no_delay,
 416                           int num_cqe_dma_coalesce);
 417
 418 int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
 419                           int type);
 420 int be_poll_mcc(struct be_ctrl_info *ctrl);
 421 unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl);
 422 int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr);
 423
 424 /*ISCSI Functuions */
 425 int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);
 426
 427 struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
 428
 429 int be_mbox_notify(struct be_ctrl_info *ctrl);
 430
 431 int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 432                                     struct be_queue_info *cq,
 433                                     struct be_queue_info *dq, int length,
 434                                     int entry_size);
 435
 436 int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 437                                 struct be_dma_mem *q_mem, u32 page_offset,
 438                                 u32 num_pages);
 439
 440 int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
 441                        struct be_queue_info *wrbq);
 442
 443 struct be_default_pdu_context {
 444         u32 dw[4];
 445 } __packed;
 446
 447 struct amap_be_default_pdu_context {
 448         u8 dbuf_cindex[13];     /* dword 0 */
 449         u8 rsvd0[3];            /* dword 0 */
 450         u8 ring_size[4];        /* dword 0 */
 451         u8 ring_state[4];       /* dword 0 */
 452         u8 rsvd1[8];            /* dword 0 */
 453         u8 dbuf_pindex[13];     /* dword 1 */
 454         u8 rsvd2;               /* dword 1 */
 455         u8 pci_func_id[8];      /* dword 1 */
 456         u8 rx_pdid[9];          /* dword 1 */
 457         u8 rx_pdid_valid;       /* dword 1 */
 458         u8 default_buffer_size[16];     /* dword 2 */
 459         u8 cq_id_recv[10];      /* dword 2 */
 460         u8 rx_pdid_not_valid;   /* dword 2 */
 461         u8 rsvd3[5];            /* dword 2 */
 462         u8 rsvd4[32];           /* dword 3 */
 463 } __packed;
 464
 465 struct be_defq_create_req {
 466         struct be_cmd_req_hdr hdr;
 467         u16 num_pages;
 468         u8 ulp_num;
 469         u8 rsvd0;
 470         struct be_default_pdu_context context;
 471         struct phys_addr pages[8];
 472 } __packed;
 473
 474 struct be_defq_create_resp {
 475         struct be_cmd_req_hdr hdr;
 476         u16 id;
 477         u16 rsvd0;
 478 } __packed;
 479
 480 struct be_post_sgl_pages_req {
 481         struct be_cmd_req_hdr hdr;
 482         u16 num_pages;
 483         u16 page_offset;
 484         u32 rsvd0;
 485         struct phys_addr pages[26];
 486         u32 rsvd1;
 487 } __packed;
 488
 489 struct be_wrbq_create_req {
 490         struct be_cmd_req_hdr hdr;
 491         u16 num_pages;
 492         u8 ulp_num;
 493         u8 rsvd0;
 494         struct phys_addr pages[8];
 495 } __packed;
 496
 497 struct be_wrbq_create_resp {
 498         struct be_cmd_resp_hdr resp_hdr;
 499         u16 cid;
 500         u16 rsvd0;
 501 } __packed;
 502
 503 #define SOL_CID_MASK            0x0000FFC0
 504 #define SOL_CODE_MASK           0x0000003F
 505 #define SOL_WRB_INDEX_MASK      0x00FF0000
 506 #define SOL_CMD_WND_MASK        0xFF000000
 507 #define SOL_RES_CNT_MASK        0x7FFFFFFF
 508 #define SOL_EXP_CMD_SN_MASK     0xFFFFFFFF
 509 #define SOL_HW_STS_MASK         0x000000FF
 510 #define SOL_STS_MASK            0x0000FF00
 511 #define SOL_RESP_MASK           0x00FF0000
 512 #define SOL_FLAGS_MASK          0x7F000000
 513 #define SOL_S_MASK              0x80000000
 514
 515 struct sol_cqe {
 516         u32 dw[4];
 517 };
 518
 519 struct amap_sol_cqe {
 520         u8 hw_sts[8];           /* dword 0 */
 521         u8 i_sts[8];            /* dword 0 */
 522         u8 i_resp[8];           /* dword 0 */
 523         u8 i_flags[7];          /* dword 0 */
 524         u8 s;                   /* dword 0 */
 525         u8 i_exp_cmd_sn[32];    /* dword 1 */
 526         u8 code[6];             /* dword 2 */
 527         u8 cid[10];             /* dword 2 */
 528         u8 wrb_index[8];        /* dword 2 */
 529         u8 i_cmd_wnd[8];        /* dword 2 */
 530         u8 i_res_cnt[31];       /* dword 3 */
 531         u8 valid;               /* dword 3 */
 532 } __packed;
 533
 534
 535 /**
 536  * Post WRB Queue Doorbell Register used by the host Storage
 537  * stack to notify the
 538  * controller of a posted Work Request Block
 539  */
 540 #define DB_WRB_POST_CID_MASK            0x3FF   /* bits 0 - 9 */
 541 #define DB_DEF_PDU_WRB_INDEX_MASK       0xFF    /* bits 0 - 9 */
 542
 543 #define DB_DEF_PDU_WRB_INDEX_SHIFT      16
 544 #define DB_DEF_PDU_NUM_POSTED_SHIFT     24
 545
 546 struct fragnum_bits_for_sgl_cra_in {
 547         struct be_cmd_req_hdr hdr;
 548         u32 num_bits;
 549 } __packed;
 550
 551 struct iscsi_cleanup_req {
 552         struct be_cmd_req_hdr hdr;
 553         u16 chute;
 554         u8 hdr_ring_id;
 555         u8 data_ring_id;
 556
 557 } __packed;
 558
 559 struct eq_delay {
 560         u32 eq_id;
 561         u32 phase;
 562         u32 delay_multiplier;
 563 } __packed;
 564
 565 struct be_eq_delay_params_in {
 566         struct be_cmd_req_hdr hdr;
 567         u32 num_eq;
 568         struct eq_delay delay[8];
 569 } __packed;
 570
 571 struct ip_address_format {
 572         u16 size_of_structure;
 573         u8 reserved;
 574         u8 ip_type;
 575         u8 ip_address[16];
 576         u32 rsvd0;
 577 } __packed;
 578
 579 struct tcp_connect_and_offload_in {
 580         struct be_cmd_req_hdr hdr;
 581         struct ip_address_format ip_address;
 582         u16 tcp_port;
 583         u16 cid;
 584         u16 cq_id;
 585         u16 defq_id;
 586         struct phys_addr dataout_template_pa;
 587         u16 hdr_ring_id;
 588         u16 data_ring_id;
 589         u8 do_offload;
 590         u8 rsvd0[3];
 591 } __packed;
 592
 593 struct tcp_connect_and_offload_out {
 594         struct be_cmd_resp_hdr hdr;
 595         u32 connection_handle;
 596         u16 cid;
 597         u16 rsvd0;
 598
 599 } __packed;
 600
 601 struct be_mcc_wrb_context {
 602         struct MCC_WRB *wrb;
 603         int *users_final_status;
 604 } __packed;
 605
 606 #define DB_DEF_PDU_RING_ID_MASK         0x3FF   /* bits 0 - 9 */
 607 #define DB_DEF_PDU_CQPROC_MASK          0x3FFF  /* bits 0 - 9 */
 608 #define DB_DEF_PDU_REARM_SHIFT          14
 609 #define DB_DEF_PDU_EVENT_SHIFT          15
 610 #define DB_DEF_PDU_CQPROC_SHIFT         16
 611
 612 struct dmsg_cqe {
 613         u32 dw[4];
 614 } __packed;
 615
 616 struct tcp_upload_params_in {
 617         struct be_cmd_req_hdr hdr;
 618         u16 id;
 619         u16 upload_type;
 620         u32 reset_seq;
 621 } __packed;
 622
 623 struct tcp_upload_params_out {
 624         u32 dw[32];
 625 } __packed;
 626
 627 union tcp_upload_params {
 628         struct tcp_upload_params_in request;
 629         struct tcp_upload_params_out response;
 630 } __packed;
 631
 632 struct be_ulp_fw_cfg {
 633         u32 ulp_mode;
 634         u32 etx_base;
 635         u32 etx_count;
 636         u32 sq_base;
 637         u32 sq_count;
 638         u32 rq_base;
 639         u32 rq_count;
 640         u32 dq_base;
 641         u32 dq_count;
 642         u32 lro_base;
 643         u32 lro_count;
 644         u32 icd_base;
 645         u32 icd_count;
 646 };
 647
 648 struct be_fw_cfg {
 649         struct be_cmd_req_hdr hdr;
 650         u32 be_config_number;
 651         u32 asic_revision;
 652         u32 phys_port;
 653         u32 function_mode;
 654         struct be_ulp_fw_cfg ulp[2];
 655         u32 function_caps;
 656 } __packed;
 657
 658 #define CMD_ISCSI_COMMAND_INVALIDATE  1
 659 #define ISCSI_OPCODE_SCSI_DATA_OUT      5
 660 #define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
 661 #define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
 662 #define OPCODE_COMMON_MODIFY_EQ_DELAY   41
 663 #define OPCODE_COMMON_ISCSI_CLEANUP     59
 664 #define OPCODE_COMMON_TCP_UPLOAD        56
 665 #define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
 666 /* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
 667 #define CMD_ISCSI_CONNECTION_INVALIDATE 1
 668 #define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 2
 669 #define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
 670
 671 #define INI_WR_CMD                      1       /* Initiator write command */
 672 #define INI_TMF_CMD                     2       /* Initiator TMF command */
 673 #define INI_NOPOUT_CMD                  3       /* Initiator; Send a NOP-OUT */
 674 #define INI_RD_CMD                      5       /* Initiator requesting to send
 675                                                  * a read command
 676                                                  */
 677 #define TGT_CTX_UPDT_CMD                7       /* Target context update */
 678 #define TGT_STS_CMD                     8       /* Target R2T and other BHS
 679                                                  * where only the status number
 680                                                  * need to be updated
 681                                                  */
 682 #define TGT_DATAIN_CMD                  9       /* Target Data-Ins in response
 683                                                  * to read command
 684                                                  */
 685 #define TGT_SOS_PDU                     10      /* Target:standalone status
 686                                                  * response
 687                                                  */
 688 #define TGT_DM_CMD                      11      /* Indicates that the bhs
 689                                                  *  preparedby
 690                                                  * driver should not be touched
 691                                                  */
 692 /* --- CMD_CHUTE_TYPE --- */
 693 #define CMD_CONNECTION_CHUTE_0          1
 694 #define CMD_CONNECTION_CHUTE_1          2
 695 #define CMD_CONNECTION_CHUTE_2          3
 696
 697 #define EQ_MAJOR_CODE_COMPLETION        0
 698
 699 #define CMD_ISCSI_SESSION_DEL_CFG_FROM_FLASH 0
 700 #define CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH 1
 701
 702 /* --- CONNECTION_UPLOAD_PARAMS --- */
 703 /* These parameters are used to define the type of upload desired.  */
 704 #define CONNECTION_UPLOAD_GRACEFUL      1       /* Graceful upload  */
 705 #define CONNECTION_UPLOAD_ABORT_RESET   2       /* Abortive upload with
 706                                                  * reset
 707                                                  */
 708 #define CONNECTION_UPLOAD_ABORT         3       /* Abortive upload without
 709                                                  * reset
 710                                                  */
 711 #define CONNECTION_UPLOAD_ABORT_WITH_SEQ 4      /* Abortive upload with reset,
 712                                                  * sequence number by driver  */
 713
 714 /* Returns byte size of given field with a structure. */
 715
 716 /* Returns the number of items in the field array. */
 717 #define BE_NUMBER_OF_FIELD(_type_, _field_)     \
 718         (FIELD_SIZEOF(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\
 719
 720 /**
 721  * Different types of iSCSI completions to host driver for both initiator
 722  * and taget mode
 723  * of operation.
 724  */
 725 #define SOL_CMD_COMPLETE                1       /* Solicited command completed
 726                                                  * normally
 727                                                  */
 728 #define SOL_CMD_KILLED_DATA_DIGEST_ERR  2       /* Solicited command got
 729                                                  * invalidated internally due
 730                                                  * to Data Digest error
 731                                                  */
 732 #define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3       /* Connection got invalidated
 733                                                  * internally
 734                                                  * due to a recieved PDU
 735                                                  * size > DSL
 736                                                  */
 737 #define CXN_KILLED_BURST_LEN_MISMATCH   4       /* Connection got invalidated
 738                                                  * internally due ti received
 739                                                  * PDU sequence size >
 740                                                  * FBL/MBL.
 741                                                  */
 742 #define CXN_KILLED_AHS_RCVD             5       /* Connection got invalidated
 743                                                  * internally due to a recieved
 744                                                  * PDU Hdr that has
 745                                                  * AHS */
 746 #define CXN_KILLED_HDR_DIGEST_ERR       6       /* Connection got invalidated
 747                                                  * internally due to Hdr Digest
 748                                                  * error
 749                                                  */
 750 #define CXN_KILLED_UNKNOWN_HDR          7       /* Connection got invalidated
 751                                                  *  internally
 752                                                  * due to a bad opcode in the
 753                                                  * pdu hdr
 754                                                  */
 755 #define CXN_KILLED_STALE_ITT_TTT_RCVD   8       /* Connection got invalidated
 756                                                  * internally due to a recieved
 757                                                  * ITT/TTT that does not belong
 758                                                  * to this Connection
 759                                                  */
 760 #define CXN_KILLED_INVALID_ITT_TTT_RCVD 9       /* Connection got invalidated
 761                                                  * internally due to recieved
 762                                                  * ITT/TTT value > Max
 763                                                  * Supported ITTs/TTTs
 764                                                  */
 765 #define CXN_KILLED_RST_RCVD             10      /* Connection got invalidated
 766                                                  * internally due to an
 767                                                  * incoming TCP RST
 768                                                  */
 769 #define CXN_KILLED_TIMED_OUT            11      /* Connection got invalidated
 770                                                  * internally due to timeout on
 771                                                  * tcp segment 12 retransmit
 772                                                  * attempts failed
 773                                                  */
 774 #define CXN_KILLED_RST_SENT             12      /* Connection got invalidated
 775                                                  * internally due to TCP RST
 776                                                  * sent by the Tx side
 777                                                  */
 778 #define CXN_KILLED_FIN_RCVD             13      /* Connection got invalidated
 779                                                  * internally due to an
 780                                                  * incoming TCP FIN.
 781                                                  */
 782 #define CXN_KILLED_BAD_UNSOL_PDU_RCVD   14      /* Connection got invalidated
 783                                                  * internally due to bad
 784                                                  * unsolicited PDU Unsolicited
 785                                                  * PDUs are PDUs with
 786                                                  * ITT=0xffffffff
 787                                                  */
 788 #define CXN_KILLED_BAD_WRB_INDEX_ERROR  15      /* Connection got invalidated
 789                                                  * internally due to bad WRB
 790                                                  * index.
 791                                                  */
 792 #define CXN_KILLED_OVER_RUN_RESIDUAL    16      /* Command got invalidated
 793                                                  * internally due to recived
 794                                                  * command has residual
 795                                                  * over run bytes.
 796                                                  */
 797 #define CXN_KILLED_UNDER_RUN_RESIDUAL   17      /* Command got invalidated
 798                                                  * internally due to recived
 799                                                  * command has residual under
 800                                                  * run bytes.
 801                                                  */
 802 #define CMD_KILLED_INVALID_STATSN_RCVD  18      /* Command got invalidated
 803                                                  * internally due to a recieved
 804                                                  * PDU has an invalid StatusSN
 805                                                  */
 806 #define CMD_KILLED_INVALID_R2T_RCVD     19      /* Command got invalidated
 807                                                  * internally due to a recieved
 808                                                  * an R2T with some invalid
 809                                                  * fields in it
 810                                                  */
 811 #define CMD_CXN_KILLED_LUN_INVALID      20      /* Command got invalidated
 812                                                  * internally due to received
 813                                                  * PDU has an invalid LUN.
 814                                                  */
 815 #define CMD_CXN_KILLED_ICD_INVALID      21      /* Command got invalidated
 816                                                  * internally due to the
 817                                                  * corresponding ICD not in a
 818                                                  * valid state
 819                                                  */
 820 #define CMD_CXN_KILLED_ITT_INVALID      22      /* Command got invalidated due
 821                                                  *  to received PDU has an
 822                                                  *  invalid ITT.
 823                                                  */
 824 #define CMD_CXN_KILLED_SEQ_OUTOFORDER   23      /* Command got invalidated due
 825                                                  * to received sequence buffer
 826                                                  * offset is out of order.
 827                                                  */
 828 #define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24   /* Command got invalidated
 829                                                  * internally due to a
 830                                                  * recieved PDU has an invalid
 831                                                  * DataSN
 832                                                  */
 833 #define CXN_INVALIDATE_NOTIFY           25      /* Connection invalidation
 834                                                  * completion notify.
 835                                                  */
 836 #define CXN_INVALIDATE_INDEX_NOTIFY     26      /* Connection invalidation
 837                                                  * completion
 838                                                  * with data PDU index.
 839                                                  */
 840 #define CMD_INVALIDATED_NOTIFY          27      /* Command invalidation
 841                                                  * completionnotifify.
 842                                                  */
 843 #define UNSOL_HDR_NOTIFY                28      /* Unsolicited header notify.*/
 844 #define UNSOL_DATA_NOTIFY               29      /* Unsolicited data notify.*/
 845 #define UNSOL_DATA_DIGEST_ERROR_NOTIFY  30      /* Unsolicited data digest
 846                                                  * error notify.
 847                                                  */
 848 #define DRIVERMSG_NOTIFY                31      /* TCP acknowledge based
 849                                                  * notification.
 850                                                  */
 851 #define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
 852                                                   * internally due to command
 853                                                   * and data are not on same
 854                                                   * connection.
 855                                                   */
 856 #define SOL_CMD_KILLED_DIF_ERR          33      /* Solicited command got
 857                                                  *  invalidated internally due
 858                                                  *  to DIF error
 859                                                  */
 860 #define CXN_KILLED_SYN_RCVD             34      /* Connection got invalidated
 861                                                  * internally due to incoming
 862                                                  * TCP SYN
 863                                                  */
 864 #define CXN_KILLED_IMM_DATA_RCVD        35      /* Connection got invalidated
 865                                                  * internally due to an
 866                                                  * incoming Unsolicited PDU
 867                                                  * that has immediate data on
 868                                                  * the cxn
 869                                                  */
 870
 871 void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
 872                         bool embedded, u8 sge_cnt);
 873
 874 void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
 875                         u8 subsystem, u8 opcode, int cmd_len);
 876
 877 #endif /* !BEISCSI_CMDS_H */