drivers/scsi/lpfc/lpfc_sli4.h

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2009-2011 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  *                                                                 *
   8  * This program is free software; you can redistribute it and/or   *
   9  * modify it under the terms of version 2 of the GNU General       *
  10  * Public License as published by the Free Software Foundation.    *
  11  * This program is distributed in the hope that it will be useful. *
  12  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  13  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  14  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  15  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  16  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  17  * more details, a copy of which can be found in the file COPYING  *
  18  * included with this package.                                     *
  19  *******************************************************************/
  20
  21 #define LPFC_ACTIVE_MBOX_WAIT_CNT               100
  22 #define LPFC_XRI_EXCH_BUSY_WAIT_TMO             10000
  23 #define LPFC_XRI_EXCH_BUSY_WAIT_T1              10
  24 #define LPFC_XRI_EXCH_BUSY_WAIT_T2              30000
  25 #define LPFC_RELEASE_NOTIFICATION_INTERVAL      32
  26 #define LPFC_RPI_LOW_WATER_MARK                 10
  27
  28 #define LPFC_UNREG_FCF                          1
  29 #define LPFC_SKIP_UNREG_FCF                     0
  30
  31 /* Amount of time in seconds for waiting FCF rediscovery to complete */
  32 #define LPFC_FCF_REDISCOVER_WAIT_TMO            2000 /* msec */
  33
  34 /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
  35 #define LPFC_NEMBED_MBOX_SGL_CNT                254
  36
  37 /* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
  38 #define LPFC_FCP_IO_CHAN_DEF       4
  39 #define LPFC_FCP_IO_CHAN_MIN       1
  40 #define LPFC_FCP_IO_CHAN_MAX       16
  41
  42 /*
  43  * Provide the default FCF Record attributes used by the driver
  44  * when nonFIP mode is configured and there is no other default
  45  * FCF Record attributes.
  46  */
  47 #define LPFC_FCOE_FCF_DEF_INDEX 0
  48 #define LPFC_FCOE_FCF_GET_FIRST 0xFFFF
  49 #define LPFC_FCOE_FCF_NEXT_NONE 0xFFFF
  50
  51 #define LPFC_FCOE_NULL_VID      0xFFF
  52 #define LPFC_FCOE_IGNORE_VID    0xFFFF
  53
  54 /* First 3 bytes of default FCF MAC is specified by FC_MAP */
  55 #define LPFC_FCOE_FCF_MAC3      0xFF
  56 #define LPFC_FCOE_FCF_MAC4      0xFF
  57 #define LPFC_FCOE_FCF_MAC5      0xFE
  58 #define LPFC_FCOE_FCF_MAP0      0x0E
  59 #define LPFC_FCOE_FCF_MAP1      0xFC
  60 #define LPFC_FCOE_FCF_MAP2      0x00
  61 #define LPFC_FCOE_MAX_RCV_SIZE  0x800
  62 #define LPFC_FCOE_FKA_ADV_PER   0
  63 #define LPFC_FCOE_FIP_PRIORITY  0x80
  64
  65 #define sli4_sid_from_fc_hdr(fc_hdr)  \
  66         ((fc_hdr)->fh_s_id[0] << 16 | \
  67          (fc_hdr)->fh_s_id[1] <<  8 | \
  68          (fc_hdr)->fh_s_id[2])
  69
  70 #define sli4_did_from_fc_hdr(fc_hdr)  \
  71         ((fc_hdr)->fh_d_id[0] << 16 | \
  72          (fc_hdr)->fh_d_id[1] <<  8 | \
  73          (fc_hdr)->fh_d_id[2])
  74
  75 #define sli4_fctl_from_fc_hdr(fc_hdr)  \
  76         ((fc_hdr)->fh_f_ctl[0] << 16 | \
  77          (fc_hdr)->fh_f_ctl[1] <<  8 | \
  78          (fc_hdr)->fh_f_ctl[2])
  79
  80 #define sli4_type_from_fc_hdr(fc_hdr)  \
  81         ((fc_hdr)->fh_type)
  82
  83 #define LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT 12000
  84
  85 enum lpfc_sli4_queue_type {
  86         LPFC_EQ,
  87         LPFC_GCQ,
  88         LPFC_MCQ,
  89         LPFC_WCQ,
  90         LPFC_RCQ,
  91         LPFC_MQ,
  92         LPFC_WQ,
  93         LPFC_HRQ,
  94         LPFC_DRQ
  95 };
  96
  97 /* The queue sub-type defines the functional purpose of the queue */
  98 enum lpfc_sli4_queue_subtype {
  99         LPFC_NONE,
 100         LPFC_MBOX,
 101         LPFC_FCP,
 102         LPFC_ELS,
 103         LPFC_USOL
 104 };
 105
 106 union sli4_qe {
 107         void *address;
 108         struct lpfc_eqe *eqe;
 109         struct lpfc_cqe *cqe;
 110         struct lpfc_mcqe *mcqe;
 111         struct lpfc_wcqe_complete *wcqe_complete;
 112         struct lpfc_wcqe_release *wcqe_release;
 113         struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
 114         struct lpfc_rcqe_complete *rcqe_complete;
 115         struct lpfc_mqe *mqe;
 116         union  lpfc_wqe *wqe;
 117         struct lpfc_rqe *rqe;
 118 };
 119
 120 struct lpfc_queue {
 121         struct list_head list;
 122         enum lpfc_sli4_queue_type type;
 123         enum lpfc_sli4_queue_subtype subtype;
 124         struct lpfc_hba *phba;
 125         struct list_head child_list;
 126         uint32_t entry_count;   /* Number of entries to support on the queue */
 127         uint32_t entry_size;    /* Size of each queue entry. */
 128         uint32_t entry_repost;  /* Count of entries before doorbell is rung */
 129 #define LPFC_QUEUE_MIN_REPOST   8
 130         uint32_t queue_id;      /* Queue ID assigned by the hardware */
 131         uint32_t assoc_qid;     /* Queue ID associated with, for CQ/WQ/MQ */
 132         struct list_head page_list;
 133         uint32_t page_count;    /* Number of pages allocated for this queue */
 134         uint32_t host_index;    /* The host's index for putting or getting */
 135         uint32_t hba_index;     /* The last known hba index for get or put */
 136
 137         struct lpfc_sli_ring *pring; /* ptr to io ring associated with q */
 138
 139         /* For q stats */
 140         uint32_t q_cnt_1;
 141         uint32_t q_cnt_2;
 142         uint32_t q_cnt_3;
 143         uint64_t q_cnt_4;
 144 /* defines for EQ stats */
 145 #define EQ_max_eqe              q_cnt_1
 146 #define EQ_no_entry             q_cnt_2
 147 #define EQ_badstate             q_cnt_3
 148 #define EQ_processed            q_cnt_4
 149
 150 /* defines for CQ stats */
 151 #define CQ_mbox                 q_cnt_1
 152 #define CQ_max_cqe              q_cnt_1
 153 #define CQ_release_wqe          q_cnt_2
 154 #define CQ_xri_aborted          q_cnt_3
 155 #define CQ_wq                   q_cnt_4
 156
 157 /* defines for WQ stats */
 158 #define WQ_overflow             q_cnt_1
 159 #define WQ_posted               q_cnt_4
 160
 161 /* defines for RQ stats */
 162 #define RQ_no_posted_buf        q_cnt_1
 163 #define RQ_no_buf_found         q_cnt_2
 164 #define RQ_buf_trunc            q_cnt_3
 165 #define RQ_rcv_buf              q_cnt_4
 166
 167         union sli4_qe qe[1];    /* array to index entries (must be last) */
 168 };
 169
 170 struct lpfc_sli4_link {
 171         uint16_t speed;
 172         uint8_t duplex;
 173         uint8_t status;
 174         uint8_t type;
 175         uint8_t number;
 176         uint8_t fault;
 177         uint16_t logical_speed;
 178         uint16_t topology;
 179 };
 180
 181 struct lpfc_fcf_rec {
 182         uint8_t  fabric_name[8];
 183         uint8_t  switch_name[8];
 184         uint8_t  mac_addr[6];
 185         uint16_t fcf_indx;
 186         uint32_t priority;
 187         uint16_t vlan_id;
 188         uint32_t addr_mode;
 189         uint32_t flag;
 190 #define BOOT_ENABLE     0x01
 191 #define RECORD_VALID    0x02
 192 };
 193
 194 struct lpfc_fcf_pri_rec {
 195         uint16_t fcf_index;
 196 #define LPFC_FCF_ON_PRI_LIST 0x0001
 197 #define LPFC_FCF_FLOGI_FAILED 0x0002
 198         uint16_t flag;
 199         uint32_t priority;
 200 };
 201
 202 struct lpfc_fcf_pri {
 203         struct list_head list;
 204         struct lpfc_fcf_pri_rec fcf_rec;
 205 };
 206
 207 /*
 208  * Maximum FCF table index, it is for driver internal book keeping, it
 209  * just needs to be no less than the supported HBA's FCF table size.
 210  */
 211 #define LPFC_SLI4_FCF_TBL_INDX_MAX      32
 212
 213 struct lpfc_fcf {
 214         uint16_t fcfi;
 215         uint32_t fcf_flag;
 216 #define FCF_AVAILABLE   0x01 /* FCF available for discovery */
 217 #define FCF_REGISTERED  0x02 /* FCF registered with FW */
 218 #define FCF_SCAN_DONE   0x04 /* FCF table scan done */
 219 #define FCF_IN_USE      0x08 /* Atleast one discovery completed */
 220 #define FCF_INIT_DISC   0x10 /* Initial FCF discovery */
 221 #define FCF_DEAD_DISC   0x20 /* FCF DEAD fast FCF failover discovery */
 222 #define FCF_ACVL_DISC   0x40 /* All CVL fast FCF failover discovery */
 223 #define FCF_DISCOVERY   (FCF_INIT_DISC | FCF_DEAD_DISC | FCF_ACVL_DISC)
 224 #define FCF_REDISC_PEND 0x80 /* FCF rediscovery pending */
 225 #define FCF_REDISC_EVT  0x100 /* FCF rediscovery event to worker thread */
 226 #define FCF_REDISC_FOV  0x200 /* Post FCF rediscovery fast failover */
 227 #define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
 228         uint32_t addr_mode;
 229         uint32_t eligible_fcf_cnt;
 230         struct lpfc_fcf_rec current_rec;
 231         struct lpfc_fcf_rec failover_rec;
 232         struct list_head fcf_pri_list;
 233         struct lpfc_fcf_pri fcf_pri[LPFC_SLI4_FCF_TBL_INDX_MAX];
 234         uint32_t current_fcf_scan_pri;
 235         struct timer_list redisc_wait;
 236         unsigned long *fcf_rr_bmask; /* Eligible FCF indexes for RR failover */
 237 };
 238
 239
 240 #define LPFC_REGION23_SIGNATURE "RG23"
 241 #define LPFC_REGION23_VERSION   1
 242 #define LPFC_REGION23_LAST_REC  0xff
 243 #define DRIVER_SPECIFIC_TYPE    0xA2
 244 #define LINUX_DRIVER_ID         0x20
 245 #define PORT_STE_TYPE           0x1
 246
 247 struct lpfc_fip_param_hdr {
 248         uint8_t type;
 249 #define FCOE_PARAM_TYPE         0xA0
 250         uint8_t length;
 251 #define FCOE_PARAM_LENGTH       2
 252         uint8_t parm_version;
 253 #define FIPP_VERSION            0x01
 254         uint8_t parm_flags;
 255 #define lpfc_fip_param_hdr_fipp_mode_SHIFT      6
 256 #define lpfc_fip_param_hdr_fipp_mode_MASK       0x3
 257 #define lpfc_fip_param_hdr_fipp_mode_WORD       parm_flags
 258 #define FIPP_MODE_ON                            0x1
 259 #define FIPP_MODE_OFF                           0x0
 260 #define FIPP_VLAN_VALID                         0x1
 261 };
 262
 263 struct lpfc_fcoe_params {
 264         uint8_t fc_map[3];
 265         uint8_t reserved1;
 266         uint16_t vlan_tag;
 267         uint8_t reserved[2];
 268 };
 269
 270 struct lpfc_fcf_conn_hdr {
 271         uint8_t type;
 272 #define FCOE_CONN_TBL_TYPE              0xA1
 273         uint8_t length;   /* words */
 274         uint8_t reserved[2];
 275 };
 276
 277 struct lpfc_fcf_conn_rec {
 278         uint16_t flags;
 279 #define FCFCNCT_VALID           0x0001
 280 #define FCFCNCT_BOOT            0x0002
 281 #define FCFCNCT_PRIMARY         0x0004   /* if not set, Secondary */
 282 #define FCFCNCT_FBNM_VALID      0x0008
 283 #define FCFCNCT_SWNM_VALID      0x0010
 284 #define FCFCNCT_VLAN_VALID      0x0020
 285 #define FCFCNCT_AM_VALID        0x0040
 286 #define FCFCNCT_AM_PREFERRED    0x0080   /* if not set, AM Required */
 287 #define FCFCNCT_AM_SPMA         0x0100   /* if not set, FPMA */
 288
 289         uint16_t vlan_tag;
 290         uint8_t fabric_name[8];
 291         uint8_t switch_name[8];
 292 };
 293
 294 struct lpfc_fcf_conn_entry {
 295         struct list_head list;
 296         struct lpfc_fcf_conn_rec conn_rec;
 297 };
 298
 299 /*
 300  * Define the host's bootstrap mailbox.  This structure contains
 301  * the member attributes needed to create, use, and destroy the
 302  * bootstrap mailbox region.
 303  *
 304  * The macro definitions for the bmbx data structure are defined
 305  * in lpfc_hw4.h with the register definition.
 306  */
 307 struct lpfc_bmbx {
 308         struct lpfc_dmabuf *dmabuf;
 309         struct dma_address dma_address;
 310         void *avirt;
 311         dma_addr_t aphys;
 312         uint32_t bmbx_size;
 313 };
 314
 315 #define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
 316
 317 #define LPFC_EQE_SIZE_4B        4
 318 #define LPFC_EQE_SIZE_16B       16
 319 #define LPFC_CQE_SIZE           16
 320 #define LPFC_WQE_SIZE           64
 321 #define LPFC_MQE_SIZE           256
 322 #define LPFC_RQE_SIZE           8
 323
 324 #define LPFC_EQE_DEF_COUNT      1024
 325 #define LPFC_CQE_DEF_COUNT      1024
 326 #define LPFC_WQE_DEF_COUNT      256
 327 #define LPFC_MQE_DEF_COUNT      16
 328 #define LPFC_RQE_DEF_COUNT      512
 329
 330 #define LPFC_QUEUE_NOARM        false
 331 #define LPFC_QUEUE_REARM        true
 332
 333
 334 /*
 335  * SLI4 CT field defines
 336  */
 337 #define SLI4_CT_RPI 0
 338 #define SLI4_CT_VPI 1
 339 #define SLI4_CT_VFI 2
 340 #define SLI4_CT_FCFI 3
 341
 342 #define LPFC_SLI4_FL1_MAX_SEGMENT_SIZE  0x10000
 343 #define LPFC_SLI4_FL1_MAX_BUF_SIZE      0X2000
 344 #define LPFC_SLI4_MIN_BUF_SIZE          0x400
 345 #define LPFC_SLI4_MAX_BUF_SIZE          0x20000
 346
 347 /*
 348  * SLI4 specific data structures
 349  */
 350 struct lpfc_max_cfg_param {
 351         uint16_t max_xri;
 352         uint16_t xri_base;
 353         uint16_t xri_used;
 354         uint16_t max_rpi;
 355         uint16_t rpi_base;
 356         uint16_t rpi_used;
 357         uint16_t max_vpi;
 358         uint16_t vpi_base;
 359         uint16_t vpi_used;
 360         uint16_t max_vfi;
 361         uint16_t vfi_base;
 362         uint16_t vfi_used;
 363         uint16_t max_fcfi;
 364         uint16_t fcfi_used;
 365         uint16_t max_eq;
 366         uint16_t max_rq;
 367         uint16_t max_cq;
 368         uint16_t max_wq;
 369 };
 370
 371 struct lpfc_hba;
 372 /* SLI4 HBA multi-fcp queue handler struct */
 373 struct lpfc_fcp_eq_hdl {
 374         uint32_t idx;
 375         struct lpfc_hba *phba;
 376         atomic_t fcp_eq_in_use;
 377 };
 378
 379 /* Port Capabilities for SLI4 Parameters */
 380 struct lpfc_pc_sli4_params {
 381         uint32_t supported;
 382         uint32_t if_type;
 383         uint32_t sli_rev;
 384         uint32_t sli_family;
 385         uint32_t featurelevel_1;
 386         uint32_t featurelevel_2;
 387         uint32_t proto_types;
 388 #define LPFC_SLI4_PROTO_FCOE    0x0000001
 389 #define LPFC_SLI4_PROTO_FC      0x0000002
 390 #define LPFC_SLI4_PROTO_NIC     0x0000004
 391 #define LPFC_SLI4_PROTO_ISCSI   0x0000008
 392 #define LPFC_SLI4_PROTO_RDMA    0x0000010
 393         uint32_t sge_supp_len;
 394         uint32_t if_page_sz;
 395         uint32_t rq_db_window;
 396         uint32_t loopbk_scope;
 397         uint32_t eq_pages_max;
 398         uint32_t eqe_size;
 399         uint32_t cq_pages_max;
 400         uint32_t cqe_size;
 401         uint32_t mq_pages_max;
 402         uint32_t mqe_size;
 403         uint32_t mq_elem_cnt;
 404         uint32_t wq_pages_max;
 405         uint32_t wqe_size;
 406         uint32_t rq_pages_max;
 407         uint32_t rqe_size;
 408         uint32_t hdr_pages_max;
 409         uint32_t hdr_size;
 410         uint32_t hdr_pp_align;
 411         uint32_t sgl_pages_max;
 412         uint32_t sgl_pp_align;
 413         uint8_t cqv;
 414         uint8_t mqv;
 415         uint8_t wqv;
 416         uint8_t rqv;
 417 };
 418
 419 struct lpfc_iov {
 420         uint32_t pf_number;
 421         uint32_t vf_number;
 422 };
 423
 424 struct lpfc_sli4_lnk_info {
 425         uint8_t lnk_dv;
 426 #define LPFC_LNK_DAT_INVAL      0
 427 #define LPFC_LNK_DAT_VAL        1
 428         uint8_t lnk_tp;
 429 #define LPFC_LNK_GE     0x0 /* FCoE */
 430 #define LPFC_LNK_FC     0x1 /* FC   */
 431         uint8_t lnk_no;
 432 };
 433
 434 #define LPFC_SLI4_HANDLER_NAME_SZ       16
 435
 436 /* SLI4 HBA data structure entries */
 437 struct lpfc_sli4_hba {
 438         void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
 439                                              PCI BAR0, config space registers */
 440         void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
 441                                              PCI BAR1, control registers */
 442         void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
 443                                              PCI BAR2, doorbell registers */
 444         union {
 445                 struct {
 446                         /* IF Type 0, BAR 0 PCI cfg space reg mem map */
 447                         void __iomem *UERRLOregaddr;
 448                         void __iomem *UERRHIregaddr;
 449                         void __iomem *UEMASKLOregaddr;
 450                         void __iomem *UEMASKHIregaddr;
 451                 } if_type0;
 452                 struct {
 453                         /* IF Type 2, BAR 0 PCI cfg space reg mem map. */
 454                         void __iomem *STATUSregaddr;
 455                         void __iomem *CTRLregaddr;
 456                         void __iomem *ERR1regaddr;
 457 #define SLIPORT_ERR1_REG_ERR_CODE_1             0x1
 458 #define SLIPORT_ERR1_REG_ERR_CODE_2             0x2
 459                         void __iomem *ERR2regaddr;
 460 #define SLIPORT_ERR2_REG_FW_RESTART             0x0
 461 #define SLIPORT_ERR2_REG_FUNC_PROVISON          0x1
 462 #define SLIPORT_ERR2_REG_FORCED_DUMP            0x2
 463 #define SLIPORT_ERR2_REG_FAILURE_EQ             0x3
 464 #define SLIPORT_ERR2_REG_FAILURE_CQ             0x4
 465 #define SLIPORT_ERR2_REG_FAILURE_BUS            0x5
 466 #define SLIPORT_ERR2_REG_FAILURE_RQ             0x6
 467                 } if_type2;
 468         } u;
 469
 470         /* IF type 0, BAR1 and if type 2, Bar 0 CSR register memory map */
 471         void __iomem *PSMPHRregaddr;
 472
 473         /* Well-known SLI INTF register memory map. */
 474         void __iomem *SLIINTFregaddr;
 475
 476         /* IF type 0, BAR 1 function CSR register memory map */
 477         void __iomem *ISRregaddr;       /* HST_ISR register */
 478         void __iomem *IMRregaddr;       /* HST_IMR register */
 479         void __iomem *ISCRregaddr;      /* HST_ISCR register */
 480         /* IF type 0, BAR 0 and if type 2, BAR 0 doorbell register memory map */
 481         void __iomem *RQDBregaddr;      /* RQ_DOORBELL register */
 482         void __iomem *WQDBregaddr;      /* WQ_DOORBELL register */
 483         void __iomem *EQCQDBregaddr;    /* EQCQ_DOORBELL register */
 484         void __iomem *MQDBregaddr;      /* MQ_DOORBELL register */
 485         void __iomem *BMBXregaddr;      /* BootStrap MBX register */
 486
 487         uint32_t ue_mask_lo;
 488         uint32_t ue_mask_hi;
 489         struct lpfc_register sli_intf;
 490         struct lpfc_pc_sli4_params pc_sli4_params;
 491         struct msix_entry *msix_entries;
 492         uint8_t handler_name[LPFC_FCP_IO_CHAN_MAX][LPFC_SLI4_HANDLER_NAME_SZ];
 493         struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
 494
 495         /* Pointers to the constructed SLI4 queues */
 496         struct lpfc_queue **hba_eq;/* Event queues for HBA */
 497         struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
 498         struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
 499         uint16_t *fcp_cq_map;
 500
 501         struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
 502         struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
 503         struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
 504         struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
 505         struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
 506         struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
 507
 508         /* Setup information for various queue parameters */
 509         int eq_esize;
 510         int eq_ecount;
 511         int cq_esize;
 512         int cq_ecount;
 513         int wq_esize;
 514         int wq_ecount;
 515         int mq_esize;
 516         int mq_ecount;
 517         int rq_esize;
 518         int rq_ecount;
 519 #define LPFC_SP_EQ_MAX_INTR_SEC         10000
 520 #define LPFC_FP_EQ_MAX_INTR_SEC         10000
 521
 522         uint32_t intr_enable;
 523         struct lpfc_bmbx bmbx;
 524         struct lpfc_max_cfg_param max_cfg_param;
 525         uint16_t extents_in_use; /* must allocate resource extents. */
 526         uint16_t rpi_hdrs_in_use; /* must post rpi hdrs if set. */
 527         uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
 528         uint16_t next_rpi;
 529         uint16_t scsi_xri_max;
 530         uint16_t scsi_xri_cnt;
 531         uint16_t els_xri_cnt;
 532         uint16_t scsi_xri_start;
 533         struct list_head lpfc_free_sgl_list;
 534         struct list_head lpfc_sgl_list;
 535         struct list_head lpfc_abts_els_sgl_list;
 536         struct list_head lpfc_abts_scsi_buf_list;
 537         struct lpfc_sglq **lpfc_sglq_active_list;
 538         struct list_head lpfc_rpi_hdr_list;
 539         unsigned long *rpi_bmask;
 540         uint16_t *rpi_ids;
 541         uint16_t rpi_count;
 542         struct list_head lpfc_rpi_blk_list;
 543         unsigned long *xri_bmask;
 544         uint16_t *xri_ids;
 545         struct list_head lpfc_xri_blk_list;
 546         unsigned long *vfi_bmask;
 547         uint16_t *vfi_ids;
 548         uint16_t vfi_count;
 549         struct list_head lpfc_vfi_blk_list;
 550         struct lpfc_sli4_flags sli4_flags;
 551         struct list_head sp_queue_event;
 552         struct list_head sp_cqe_event_pool;
 553         struct list_head sp_asynce_work_queue;
 554         struct list_head sp_fcp_xri_aborted_work_queue;
 555         struct list_head sp_els_xri_aborted_work_queue;
 556         struct list_head sp_unsol_work_queue;
 557         struct lpfc_sli4_link link_state;
 558         struct lpfc_sli4_lnk_info lnk_info;
 559         uint32_t pport_name_sta;
 560 #define LPFC_SLI4_PPNAME_NON    0
 561 #define LPFC_SLI4_PPNAME_GET    1
 562         struct lpfc_iov iov;
 563         spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
 564         spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
 565 };
 566
 567 enum lpfc_sge_type {
 568         GEN_BUFF_TYPE,
 569         SCSI_BUFF_TYPE
 570 };
 571
 572 enum lpfc_sgl_state {
 573         SGL_FREED,
 574         SGL_ALLOCATED,
 575         SGL_XRI_ABORTED
 576 };
 577
 578 struct lpfc_sglq {
 579         /* lpfc_sglqs are used in double linked lists */
 580         struct list_head list;
 581         struct list_head clist;
 582         enum lpfc_sge_type buff_type; /* is this a scsi sgl */
 583         enum lpfc_sgl_state state;
 584         struct lpfc_nodelist *ndlp; /* ndlp associated with IO */
 585         uint16_t iotag;         /* pre-assigned IO tag */
 586         uint16_t sli4_lxritag;  /* logical pre-assigned xri. */
 587         uint16_t sli4_xritag;   /* pre-assigned XRI, (OXID) tag. */
 588         struct sli4_sge *sgl;   /* pre-assigned SGL */
 589         void *virt;             /* virtual address. */
 590         dma_addr_t phys;        /* physical address */
 591 };
 592
 593 struct lpfc_rpi_hdr {
 594         struct list_head list;
 595         uint32_t len;
 596         struct lpfc_dmabuf *dmabuf;
 597         uint32_t page_count;
 598         uint32_t start_rpi;
 599 };
 600
 601 struct lpfc_rsrc_blks {
 602         struct list_head list;
 603         uint16_t rsrc_start;
 604         uint16_t rsrc_size;
 605         uint16_t rsrc_used;
 606 };
 607
 608 /*
 609  * SLI4 specific function prototypes
 610  */
 611 int lpfc_pci_function_reset(struct lpfc_hba *);
 612 int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *);
 613 int lpfc_sli4_hba_setup(struct lpfc_hba *);
 614 int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
 615                      uint8_t, uint32_t, bool);
 616 void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
 617 void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
 618 void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
 619                            struct lpfc_mbx_sge *);
 620 int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
 621                                uint16_t);
 622
 623 void lpfc_sli4_hba_reset(struct lpfc_hba *);
 624 struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
 625                         uint32_t);
 626 void lpfc_sli4_queue_free(struct lpfc_queue *);
 627 uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
 628 uint32_t lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint16_t);
 629 uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
 630                         struct lpfc_queue *, uint32_t, uint32_t);
 631 int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
 632                        struct lpfc_queue *, uint32_t);
 633 uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
 634                         struct lpfc_queue *, uint32_t);
 635 uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
 636                         struct lpfc_queue *, struct lpfc_queue *, uint32_t);
 637 void lpfc_rq_adjust_repost(struct lpfc_hba *, struct lpfc_queue *, int);
 638 uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 639 uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 640 uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 641 uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 642 uint32_t lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
 643                          struct lpfc_queue *);
 644 int lpfc_sli4_queue_setup(struct lpfc_hba *);
 645 void lpfc_sli4_queue_unset(struct lpfc_hba *);
 646 int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
 647 int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
 648 uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
 649 int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
 650 int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
 651 struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
 652 struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
 653 void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
 654 void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
 655 int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
 656 int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
 657 int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
 658 struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
 659 void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
 660 int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
 661 void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
 662 void lpfc_sli4_remove_rpis(struct lpfc_hba *);
 663 void lpfc_sli4_async_event_proc(struct lpfc_hba *);
 664 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
 665 int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
 666                         void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
 667 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
 668 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
 669 void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
 670                                struct sli4_wcqe_xri_aborted *);
 671 void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
 672                                struct sli4_wcqe_xri_aborted *);
 673 void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
 674 void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
 675 int lpfc_sli4_brdreset(struct lpfc_hba *);
 676 int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
 677 void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
 678 int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
 679 int lpfc_sli4_init_vpi(struct lpfc_vport *);
 680 uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
 681 uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
 682 void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
 683 int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
 684 int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
 685 int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
 686 void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 687 void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 688 void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 689 int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
 690 int lpfc_sli4_post_status_check(struct lpfc_hba *);
 691 uint8_t lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
 692 uint8_t lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *, LPFC_MBOXQ_t *);