LXR linux/drivers/scsi/lpfc/lpfc

   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
  85enum 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 */
  98enum lpfc_sli4_queue_subtype {
  99        LPFC_NONE,
 100        LPFC_MBOX,
 101        LPFC_FCP,
 102        LPFC_ELS,
 103        LPFC_USOL
 104};
 105
 106union 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
 120struct 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
 170struct 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
 181struct 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
 194struct 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
 202struct 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
 213struct 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
 247struct 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
 263struct 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
 270struct 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
 277struct 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
 294struct 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 */
 307struct 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 */
 350struct 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
 371struct lpfc_hba;
 372/* SLI4 HBA multi-fcp queue handler struct */
 373struct 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 */
 380struct 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
 419struct lpfc_iov {
 420        uint32_t pf_number;
 421        uint32_t vf_number;
 422};
 423
 424struct 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 */
 437struct 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
 567enum lpfc_sge_type {
 568        GEN_BUFF_TYPE,
 569        SCSI_BUFF_TYPE
 570};
 571
 572enum lpfc_sgl_state {
 573        SGL_FREED,
 574        SGL_ALLOCATED,
 575        SGL_XRI_ABORTED
 576};
 577
 578struct 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
 593struct 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
 601struct 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 */
 611int lpfc_pci_function_reset(struct lpfc_hba *);
 612int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *);
 613int lpfc_sli4_hba_setup(struct lpfc_hba *);
 614int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
 615                     uint8_t, uint32_t, bool);
 616void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
 617void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
 618void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
 619                           struct lpfc_mbx_sge *);
 620int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
 621                               uint16_t);
 622
 623void lpfc_sli4_hba_reset(struct lpfc_hba *);
 624struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
 625                        uint32_t);
 626void lpfc_sli4_queue_free(struct lpfc_queue *);
 627uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
 628uint32_t lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint16_t);
 629uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
 630                        struct lpfc_queue *, uint32_t, uint32_t);
 631int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
 632                       struct lpfc_queue *, uint32_t);
 633uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
 634                        struct lpfc_queue *, uint32_t);
 635uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
 636                        struct lpfc_queue *, struct lpfc_queue *, uint32_t);
 637void lpfc_rq_adjust_repost(struct lpfc_hba *, struct lpfc_queue *, int);
 638uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 639uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 640uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 641uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
 642uint32_t lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
 643                         struct lpfc_queue *);
 644int lpfc_sli4_queue_setup(struct lpfc_hba *);
 645void lpfc_sli4_queue_unset(struct lpfc_hba *);
 646int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
 647int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
 648uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
 649int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
 650int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
 651struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
 652struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
 653void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
 654void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
 655int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
 656int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
 657int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
 658struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
 659void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
 660int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
 661void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
 662void lpfc_sli4_remove_rpis(struct lpfc_hba *);
 663void lpfc_sli4_async_event_proc(struct lpfc_hba *);
 664void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
 665int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
 666                        void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
 667void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
 668void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
 669void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
 670                               struct sli4_wcqe_xri_aborted *);
 671void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
 672                               struct sli4_wcqe_xri_aborted *);
 673void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
 674void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
 675int lpfc_sli4_brdreset(struct lpfc_hba *);
 676int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
 677void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
 678int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
 679int lpfc_sli4_init_vpi(struct lpfc_vport *);
 680uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
 681uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
 682void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
 683int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
 684int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
 685int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
 686void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 687void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 688void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
 689int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
 690int lpfc_sli4_post_status_check(struct lpfc_hba *);
 691uint8_t lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
 692uint8_t lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
 693