linux/drivers/scsi/lpfc/lpfc.h
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   1/*******************************************************************
   2 * This file is part of the Emulex Linux Device Driver for         *
   3 * Fibre Channel Host Bus Adapters.                                *
   4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term      *
   5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries.  *
   6 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7 * EMULEX and SLI are trademarks of Emulex.                        *
   8 * www.broadcom.com                                                *
   9 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10 *                                                                 *
  11 * This program is free software; you can redistribute it and/or   *
  12 * modify it under the terms of version 2 of the GNU General       *
  13 * Public License as published by the Free Software Foundation.    *
  14 * This program is distributed in the hope that it will be useful. *
  15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20 * more details, a copy of which can be found in the file COPYING  *
  21 * included with this package.                                     *
  22 *******************************************************************/
  23
  24#include <scsi/scsi_host.h>
  25#include <linux/ktime.h>
  26#include <linux/workqueue.h>
  27
  28#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  29#define CONFIG_SCSI_LPFC_DEBUG_FS
  30#endif
  31
  32struct lpfc_sli2_slim;
  33
  34#define ELX_MODEL_NAME_SIZE     80
  35
  36#define LPFC_PCI_DEV_LP         0x1
  37#define LPFC_PCI_DEV_OC         0x2
  38
  39#define LPFC_SLI_REV2           2
  40#define LPFC_SLI_REV3           3
  41#define LPFC_SLI_REV4           4
  42
  43#define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  44#define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  45                                           requests */
  46#define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  47                                           the NameServer  before giving up. */
  48#define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  49#define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  50#define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  51                cmnd for menlo needs nearly twice as for firmware
  52                downloads using bsg */
  53
  54#define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
  55#define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
  56#define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
  57#define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  58#define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
  59#define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
  60#define LPFC_MAX_NVME_SEG_CNT   128     /* max SGL element cnt per NVME cmnd */
  61
  62#define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  63#define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  64#define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  65#define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  66#define LPFC_TGTQ_INTERVAL      40000   /* Min amount of time between tgt
  67                                           queue depth change in millisecs */
  68#define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  69#define LPFC_MIN_TGT_QDEPTH     10
  70#define LPFC_MAX_TGT_QDEPTH     0xFFFF
  71
  72#define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  73                                           collection. */
  74/*
  75 * Following time intervals are used of adjusting SCSI device
  76 * queue depths when there are driver resource error or Firmware
  77 * resource error.
  78 */
  79/* 1 Second */
  80#define QUEUE_RAMP_DOWN_INTERVAL        (msecs_to_jiffies(1000 * 1))
  81
  82/* Number of exchanges reserved for discovery to complete */
  83#define LPFC_DISC_IOCB_BUFF_COUNT 20
  84
  85#define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  86#define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  87
  88#define LPFC_LOOK_AHEAD_OFF     0       /* Look ahead logic is turned off */
  89
  90/* Error Attention event polling interval */
  91#define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */
  92
  93/* Define macros for 64 bit support */
  94#define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  95#define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  96#define getPaddr(high, low)  ((dma_addr_t)( \
  97                             (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  98/* Provide maximum configuration definitions. */
  99#define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
 100#define FC_MAX_ADPTMSG          64
 101
 102#define MAX_HBAEVT      32
 103#define MAX_HBAS_NO_RESET 16
 104
 105/* Number of MSI-X vectors the driver uses */
 106#define LPFC_MSIX_VECTORS       2
 107
 108/* lpfc wait event data ready flag */
 109#define LPFC_DATA_READY         0       /* bit 0 */
 110
 111/* queue dump line buffer size */
 112#define LPFC_LBUF_SZ            128
 113
 114/* mailbox system shutdown options */
 115#define LPFC_MBX_NO_WAIT        0
 116#define LPFC_MBX_WAIT           1
 117
 118enum lpfc_polling_flags {
 119        ENABLE_FCP_RING_POLLING = 0x1,
 120        DISABLE_FCP_RING_INT    = 0x2
 121};
 122
 123struct perf_prof {
 124        uint16_t cmd_cpu[40];
 125        uint16_t rsp_cpu[40];
 126        uint16_t qh_cpu[40];
 127        uint16_t wqidx[40];
 128};
 129
 130/*
 131 * Provide for FC4 TYPE x28 - NVME.  The
 132 * bit mask for FCP and NVME is 0x8 identically
 133 * because they are 32 bit positions distance.
 134 */
 135#define LPFC_FC4_TYPE_BITMASK   0x00000100
 136
 137/* Provide DMA memory definitions the driver uses per port instance. */
 138struct lpfc_dmabuf {
 139        struct list_head list;
 140        void *virt;             /* virtual address ptr */
 141        dma_addr_t phys;        /* mapped address */
 142        uint32_t   buffer_tag;  /* used for tagged queue ring */
 143};
 144
 145struct lpfc_nvmet_ctxbuf {
 146        struct list_head list;
 147        struct lpfc_nvmet_rcv_ctx *context;
 148        struct lpfc_iocbq *iocbq;
 149        struct lpfc_sglq *sglq;
 150};
 151
 152struct lpfc_dma_pool {
 153        struct lpfc_dmabuf   *elements;
 154        uint32_t    max_count;
 155        uint32_t    current_count;
 156};
 157
 158struct hbq_dmabuf {
 159        struct lpfc_dmabuf hbuf;
 160        struct lpfc_dmabuf dbuf;
 161        uint16_t total_size;
 162        uint16_t bytes_recv;
 163        uint32_t tag;
 164        struct lpfc_cq_event cq_event;
 165        unsigned long time_stamp;
 166        void *context;
 167};
 168
 169struct rqb_dmabuf {
 170        struct lpfc_dmabuf hbuf;
 171        struct lpfc_dmabuf dbuf;
 172        uint16_t total_size;
 173        uint16_t bytes_recv;
 174        uint16_t idx;
 175        struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
 176        struct lpfc_queue *drq;   /* ptr to associated Data RQ */
 177};
 178
 179/* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 180#define MEM_PRI         0x100
 181
 182
 183/****************************************************************************/
 184/*      Device VPD save area                                                */
 185/****************************************************************************/
 186typedef struct lpfc_vpd {
 187        uint32_t status;        /* vpd status value */
 188        uint32_t length;        /* number of bytes actually returned */
 189        struct {
 190                uint32_t rsvd1; /* Revision numbers */
 191                uint32_t biuRev;
 192                uint32_t smRev;
 193                uint32_t smFwRev;
 194                uint32_t endecRev;
 195                uint16_t rBit;
 196                uint8_t fcphHigh;
 197                uint8_t fcphLow;
 198                uint8_t feaLevelHigh;
 199                uint8_t feaLevelLow;
 200                uint32_t postKernRev;
 201                uint32_t opFwRev;
 202                uint8_t opFwName[16];
 203                uint32_t sli1FwRev;
 204                uint8_t sli1FwName[16];
 205                uint32_t sli2FwRev;
 206                uint8_t sli2FwName[16];
 207        } rev;
 208        struct {
 209#ifdef __BIG_ENDIAN_BITFIELD
 210                uint32_t rsvd3  :19;  /* Reserved                             */
 211                uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 212                uint32_t rsvd2  : 3;  /* Reserved                             */
 213                uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 214                uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 215                uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 216                uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 217                uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 218                uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 219                uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 220                uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 221                uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 222#else   /*  __LITTLE_ENDIAN */
 223                uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 224                uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 225                uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 226                uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 227                uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 228                uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 229                uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 230                uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 231                uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 232                uint32_t rsvd2  : 3;  /* Reserved                             */
 233                uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 234                uint32_t rsvd3  :19;  /* Reserved                             */
 235#endif
 236        } sli3Feat;
 237} lpfc_vpd_t;
 238
 239struct lpfc_scsi_buf;
 240
 241
 242/*
 243 * lpfc stat counters
 244 */
 245struct lpfc_stats {
 246        /* Statistics for ELS commands */
 247        uint32_t elsLogiCol;
 248        uint32_t elsRetryExceeded;
 249        uint32_t elsXmitRetry;
 250        uint32_t elsDelayRetry;
 251        uint32_t elsRcvDrop;
 252        uint32_t elsRcvFrame;
 253        uint32_t elsRcvRSCN;
 254        uint32_t elsRcvRNID;
 255        uint32_t elsRcvFARP;
 256        uint32_t elsRcvFARPR;
 257        uint32_t elsRcvFLOGI;
 258        uint32_t elsRcvPLOGI;
 259        uint32_t elsRcvADISC;
 260        uint32_t elsRcvPDISC;
 261        uint32_t elsRcvFAN;
 262        uint32_t elsRcvLOGO;
 263        uint32_t elsRcvPRLO;
 264        uint32_t elsRcvPRLI;
 265        uint32_t elsRcvLIRR;
 266        uint32_t elsRcvRLS;
 267        uint32_t elsRcvRPS;
 268        uint32_t elsRcvRPL;
 269        uint32_t elsRcvRRQ;
 270        uint32_t elsRcvRTV;
 271        uint32_t elsRcvECHO;
 272        uint32_t elsRcvLCB;
 273        uint32_t elsRcvRDP;
 274        uint32_t elsXmitFLOGI;
 275        uint32_t elsXmitFDISC;
 276        uint32_t elsXmitPLOGI;
 277        uint32_t elsXmitPRLI;
 278        uint32_t elsXmitADISC;
 279        uint32_t elsXmitLOGO;
 280        uint32_t elsXmitSCR;
 281        uint32_t elsXmitRNID;
 282        uint32_t elsXmitFARP;
 283        uint32_t elsXmitFARPR;
 284        uint32_t elsXmitACC;
 285        uint32_t elsXmitLSRJT;
 286
 287        uint32_t frameRcvBcast;
 288        uint32_t frameRcvMulti;
 289        uint32_t strayXmitCmpl;
 290        uint32_t frameXmitDelay;
 291        uint32_t xriCmdCmpl;
 292        uint32_t xriStatErr;
 293        uint32_t LinkUp;
 294        uint32_t LinkDown;
 295        uint32_t LinkMultiEvent;
 296        uint32_t NoRcvBuf;
 297        uint32_t fcpCmd;
 298        uint32_t fcpCmpl;
 299        uint32_t fcpRspErr;
 300        uint32_t fcpRemoteStop;
 301        uint32_t fcpPortRjt;
 302        uint32_t fcpPortBusy;
 303        uint32_t fcpError;
 304        uint32_t fcpLocalErr;
 305};
 306
 307struct lpfc_hba;
 308
 309
 310enum discovery_state {
 311        LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 312        LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 313        LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 314        LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 315        LPFC_FDISC             =  8,    /* FDISC sent for vport */
 316        LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 317                                         * configured */
 318        LPFC_NS_REG            =  10,   /* Register with NameServer */
 319        LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 320        LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 321                                         * device authentication / discovery */
 322        LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 323        LPFC_VPORT_READY       =  32,
 324};
 325
 326enum hba_state {
 327        LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 328        LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 329        LPFC_INIT_START      =   2,   /* Initial state after board reset */
 330        LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 331        LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 332        LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 333        LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 334                                       * CLEAR_LA */
 335        LPFC_HBA_READY       =  32,
 336        LPFC_HBA_ERROR       =  -1
 337};
 338
 339struct lpfc_vport {
 340        struct lpfc_hba *phba;
 341        struct list_head listentry;
 342        uint8_t port_type;
 343#define LPFC_PHYSICAL_PORT 1
 344#define LPFC_NPIV_PORT  2
 345#define LPFC_FABRIC_PORT 3
 346        enum discovery_state port_state;
 347
 348        uint16_t vpi;
 349        uint16_t vfi;
 350        uint8_t vpi_state;
 351#define LPFC_VPI_REGISTERED     0x1
 352
 353        uint32_t fc_flag;       /* FC flags */
 354/* Several of these flags are HBA centric and should be moved to
 355 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 356 */
 357#define FC_PT2PT                0x1      /* pt2pt with no fabric */
 358#define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 359#define FC_DISC_TMO             0x4      /* Discovery timer running */
 360#define FC_PUBLIC_LOOP          0x8      /* Public loop */
 361#define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 362#define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 363#define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 364#define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 365#define FC_FABRIC               0x100    /* We are fabric attached */
 366#define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 367#define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 368#define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 369#define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 370#define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 371#define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 372#define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 373#define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 374#define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 375#define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 376#define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 377#define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 378#define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 379#define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 380
 381        uint32_t ct_flags;
 382#define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 383#define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 384#define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 385#define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 386#define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 387
 388        struct list_head fc_nodes;
 389
 390        /* Keep counters for the number of entries in each list. */
 391        uint16_t fc_plogi_cnt;
 392        uint16_t fc_adisc_cnt;
 393        uint16_t fc_reglogin_cnt;
 394        uint16_t fc_prli_cnt;
 395        uint16_t fc_unmap_cnt;
 396        uint16_t fc_map_cnt;
 397        uint16_t fc_npr_cnt;
 398        uint16_t fc_unused_cnt;
 399        struct serv_parm fc_sparam;     /* buffer for our service parameters */
 400
 401        uint32_t fc_myDID;      /* fibre channel S_ID */
 402        uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 403        struct lpfc_name fabric_portname;
 404        struct lpfc_name fabric_nodename;
 405
 406        int32_t stopped;   /* HBA has not been restarted since last ERATT */
 407        uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 408
 409        uint32_t num_disc_nodes;        /* in addition to hba_state */
 410        uint32_t gidft_inp;             /* cnt of outstanding GID_FTs */
 411
 412        uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 413        uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 414        uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 415        struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 416        struct lpfc_name fc_nodename;   /* fc nodename */
 417        struct lpfc_name fc_portname;   /* fc portname */
 418
 419        struct lpfc_work_evt disc_timeout_evt;
 420
 421        struct timer_list fc_disctmo;   /* Discovery rescue timer */
 422        uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 423        uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 424
 425        spinlock_t work_port_lock;
 426        uint32_t work_port_events; /* Timeout to be handled  */
 427#define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 428#define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 429#define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 430
 431#define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 432#define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 433#define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 434#define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 435#define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 436#define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 437
 438        struct timer_list els_tmofunc;
 439        struct timer_list delayed_disc_tmo;
 440
 441        int unreg_vpi_cmpl;
 442
 443        uint8_t load_flag;
 444#define FC_LOADING              0x1     /* HBA in process of loading drvr */
 445#define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 446#define FC_ALLOW_FDMI           0x4     /* port is ready for FDMI requests */
 447        /* Vport Config Parameters */
 448        uint32_t cfg_scan_down;
 449        uint32_t cfg_lun_queue_depth;
 450        uint32_t cfg_nodev_tmo;
 451        uint32_t cfg_devloss_tmo;
 452        uint32_t cfg_restrict_login;
 453        uint32_t cfg_peer_port_login;
 454        uint32_t cfg_fcp_class;
 455        uint32_t cfg_use_adisc;
 456        uint32_t cfg_discovery_threads;
 457        uint32_t cfg_log_verbose;
 458        uint32_t cfg_max_luns;
 459        uint32_t cfg_enable_da_id;
 460        uint32_t cfg_max_scsicmpl_time;
 461        uint32_t cfg_tgt_queue_depth;
 462        uint32_t cfg_first_burst_size;
 463        uint32_t dev_loss_tmo_changed;
 464
 465        struct fc_vport *fc_vport;
 466
 467#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 468        struct dentry *debug_disc_trc;
 469        struct dentry *debug_nodelist;
 470        struct dentry *debug_nvmestat;
 471        struct dentry *debug_nvmektime;
 472        struct dentry *debug_cpucheck;
 473        struct dentry *vport_debugfs_root;
 474        struct lpfc_debugfs_trc *disc_trc;
 475        atomic_t disc_trc_cnt;
 476#endif
 477        uint8_t stat_data_enabled;
 478        uint8_t stat_data_blocked;
 479        struct list_head rcv_buffer_list;
 480        unsigned long rcv_buffer_time_stamp;
 481        uint32_t vport_flag;
 482#define STATIC_VPORT    1
 483#define FAWWPN_SET      2
 484#define FAWWPN_PARAM_CHG        4
 485
 486        uint16_t fdmi_num_disc;
 487        uint32_t fdmi_hba_mask;
 488        uint32_t fdmi_port_mask;
 489
 490        /* There is a single nvme instance per vport. */
 491        struct nvme_fc_local_port *localport;
 492        uint8_t  nvmei_support; /* driver supports NVME Initiator */
 493        uint32_t last_fcp_wqidx;
 494};
 495
 496struct hbq_s {
 497        uint16_t entry_count;     /* Current number of HBQ slots */
 498        uint16_t buffer_count;    /* Current number of buffers posted */
 499        uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 500        uint32_t hbqPutIdx;       /* HBQ slot to use */
 501        uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 502        void    *hbq_virt;        /* Virtual ptr to this hbq */
 503        struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 504                                  /* Callback for HBQ buffer allocation */
 505        struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 506                                  /* Callback for HBQ buffer free */
 507        void               (*hbq_free_buffer) (struct lpfc_hba *,
 508                                               struct hbq_dmabuf *);
 509};
 510
 511/* this matches the position in the lpfc_hbq_defs array */
 512#define LPFC_ELS_HBQ    0
 513#define LPFC_MAX_HBQS   1
 514
 515enum hba_temp_state {
 516        HBA_NORMAL_TEMP,
 517        HBA_OVER_TEMP
 518};
 519
 520enum intr_type_t {
 521        NONE = 0,
 522        INTx,
 523        MSI,
 524        MSIX,
 525};
 526
 527#define LPFC_CT_CTX_MAX         64
 528struct unsol_rcv_ct_ctx {
 529        uint32_t ctxt_id;
 530        uint32_t SID;
 531        uint32_t valid;
 532#define UNSOL_INVALID           0
 533#define UNSOL_VALID             1
 534        uint16_t oxid;
 535        uint16_t rxid;
 536};
 537
 538#define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 539#define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 540#define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 541#define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 542#define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 543#define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 544#define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 545#define LPFC_USER_LINK_SPEED_32G        32      /* 32 Gigabaud */
 546#define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_32G
 547#define LPFC_USER_LINK_SPEED_BITMAP  ((1ULL << LPFC_USER_LINK_SPEED_32G) | \
 548                                     (1 << LPFC_USER_LINK_SPEED_16G) | \
 549                                     (1 << LPFC_USER_LINK_SPEED_10G) | \
 550                                     (1 << LPFC_USER_LINK_SPEED_8G) | \
 551                                     (1 << LPFC_USER_LINK_SPEED_4G) | \
 552                                     (1 << LPFC_USER_LINK_SPEED_2G) | \
 553                                     (1 << LPFC_USER_LINK_SPEED_1G) | \
 554                                     (1 << LPFC_USER_LINK_SPEED_AUTO))
 555#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32"
 556
 557enum nemb_type {
 558        nemb_mse = 1,
 559        nemb_hbd
 560};
 561
 562enum mbox_type {
 563        mbox_rd = 1,
 564        mbox_wr
 565};
 566
 567enum dma_type {
 568        dma_mbox = 1,
 569        dma_ebuf
 570};
 571
 572enum sta_type {
 573        sta_pre_addr = 1,
 574        sta_pos_addr
 575};
 576
 577struct lpfc_mbox_ext_buf_ctx {
 578        uint32_t state;
 579#define LPFC_BSG_MBOX_IDLE              0
 580#define LPFC_BSG_MBOX_HOST              1
 581#define LPFC_BSG_MBOX_PORT              2
 582#define LPFC_BSG_MBOX_DONE              3
 583#define LPFC_BSG_MBOX_ABTS              4
 584        enum nemb_type nembType;
 585        enum mbox_type mboxType;
 586        uint32_t numBuf;
 587        uint32_t mbxTag;
 588        uint32_t seqNum;
 589        struct lpfc_dmabuf *mbx_dmabuf;
 590        struct list_head ext_dmabuf_list;
 591};
 592
 593struct lpfc_hba {
 594        /* SCSI interface function jump table entries */
 595        int (*lpfc_new_scsi_buf)
 596                (struct lpfc_vport *, int);
 597        struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
 598                (struct lpfc_hba *, struct lpfc_nodelist *);
 599        int (*lpfc_scsi_prep_dma_buf)
 600                (struct lpfc_hba *, struct lpfc_scsi_buf *);
 601        void (*lpfc_scsi_unprep_dma_buf)
 602                (struct lpfc_hba *, struct lpfc_scsi_buf *);
 603        void (*lpfc_release_scsi_buf)
 604                (struct lpfc_hba *, struct lpfc_scsi_buf *);
 605        void (*lpfc_rampdown_queue_depth)
 606                (struct lpfc_hba *);
 607        void (*lpfc_scsi_prep_cmnd)
 608                (struct lpfc_vport *, struct lpfc_scsi_buf *,
 609                 struct lpfc_nodelist *);
 610
 611        /* IOCB interface function jump table entries */
 612        int (*__lpfc_sli_issue_iocb)
 613                (struct lpfc_hba *, uint32_t,
 614                 struct lpfc_iocbq *, uint32_t);
 615        void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 616                         struct lpfc_iocbq *);
 617        int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 618        IOCB_t * (*lpfc_get_iocb_from_iocbq)
 619                (struct lpfc_iocbq *);
 620        void (*lpfc_scsi_cmd_iocb_cmpl)
 621                (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 622
 623        /* MBOX interface function jump table entries */
 624        int (*lpfc_sli_issue_mbox)
 625                (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 626
 627        /* Slow-path IOCB process function jump table entries */
 628        void (*lpfc_sli_handle_slow_ring_event)
 629                (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 630                 uint32_t mask);
 631
 632        /* INIT device interface function jump table entries */
 633        int (*lpfc_sli_hbq_to_firmware)
 634                (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 635        int (*lpfc_sli_brdrestart)
 636                (struct lpfc_hba *);
 637        int (*lpfc_sli_brdready)
 638                (struct lpfc_hba *, uint32_t);
 639        void (*lpfc_handle_eratt)
 640                (struct lpfc_hba *);
 641        void (*lpfc_stop_port)
 642                (struct lpfc_hba *);
 643        int (*lpfc_hba_init_link)
 644                (struct lpfc_hba *, uint32_t);
 645        int (*lpfc_hba_down_link)
 646                (struct lpfc_hba *, uint32_t);
 647        int (*lpfc_selective_reset)
 648                (struct lpfc_hba *);
 649
 650        int (*lpfc_bg_scsi_prep_dma_buf)
 651                (struct lpfc_hba *, struct lpfc_scsi_buf *);
 652        /* Add new entries here */
 653
 654        /* SLI4 specific HBA data structure */
 655        struct lpfc_sli4_hba sli4_hba;
 656
 657        struct workqueue_struct *wq;
 658
 659        struct lpfc_sli sli;
 660        uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 661        uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 662        uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 663#define LPFC_SLI3_HBQ_ENABLED           0x01
 664#define LPFC_SLI3_NPIV_ENABLED          0x02
 665#define LPFC_SLI3_VPORT_TEARDOWN        0x04
 666#define LPFC_SLI3_CRP_ENABLED           0x08
 667#define LPFC_SLI3_BG_ENABLED            0x20
 668#define LPFC_SLI3_DSS_ENABLED           0x40
 669#define LPFC_SLI4_PERFH_ENABLED         0x80
 670#define LPFC_SLI4_PHWQ_ENABLED          0x100
 671        uint32_t iocb_cmd_size;
 672        uint32_t iocb_rsp_size;
 673
 674        enum hba_state link_state;
 675        uint32_t link_flag;     /* link state flags */
 676#define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 677                                        /* This flag is set while issuing */
 678                                        /* INIT_LINK mailbox command */
 679#define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 680#define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 681#define LS_MDS_LINK_DOWN      0x8       /* MDS Diagnostics Link Down */
 682#define LS_MDS_LOOPBACK      0x16       /* MDS Diagnostics Link Up (Loopback) */
 683
 684        uint32_t hba_flag;      /* hba generic flags */
 685#define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 686#define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 687#define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 688#define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 689#define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 690#define FCP_XRI_ABORT_EVENT     0x20
 691#define ELS_XRI_ABORT_EVENT     0x40
 692#define ASYNC_EVENT             0x80
 693#define LINK_DISABLED           0x100 /* Link disabled by user */
 694#define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 695#define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 696#define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 697#define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 698#define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 699#define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 700#define HBA_FCP_IOQ_FLUSH       0x8000 /* FCP I/O queues being flushed */
 701#define HBA_FW_DUMP_OP          0x10000 /* Skips fn reset before FW dump */
 702#define HBA_RECOVERABLE_UE      0x20000 /* Firmware supports recoverable UE */
 703#define HBA_FORCED_LINK_SPEED   0x40000 /*
 704                                         * Firmware supports Forced Link Speed
 705                                         * capability
 706                                         */
 707#define HBA_NVME_IOQ_FLUSH      0x80000 /* NVME IO queues flushed. */
 708#define NVME_XRI_ABORT_EVENT    0x100000
 709
 710        uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 711        struct lpfc_dmabuf slim2p;
 712
 713        MAILBOX_t *mbox;
 714        uint32_t *mbox_ext;
 715        struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 716        uint32_t ha_copy;
 717        struct _PCB *pcb;
 718        struct _IOCB *IOCBs;
 719
 720        struct lpfc_dmabuf hbqslimp;
 721
 722        uint16_t pci_cfg_value;
 723
 724        uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 725
 726        uint32_t fc_eventTag;   /* event tag for link attention */
 727        uint32_t link_events;
 728
 729        /* These fields used to be binfo */
 730        uint32_t fc_pref_DID;   /* preferred D_ID */
 731        uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 732        uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 733        uint32_t fc_edtov;      /* E_D_TOV timer value */
 734        uint32_t fc_arbtov;     /* ARB_TOV timer value */
 735        uint32_t fc_ratov;      /* R_A_TOV timer value */
 736        uint32_t fc_rttov;      /* R_T_TOV timer value */
 737        uint32_t fc_altov;      /* AL_TOV timer value */
 738        uint32_t fc_crtov;      /* C_R_TOV timer value */
 739
 740        struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 741        uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 742
 743        uint32_t lmt;
 744
 745        uint32_t fc_topology;   /* link topology, from LINK INIT */
 746        uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
 747
 748        struct lpfc_stats fc_stat;
 749
 750        struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 751        uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 752
 753        uint8_t  wwnn[8];
 754        uint8_t  wwpn[8];
 755        uint32_t RandomData[7];
 756        uint8_t  fcp_embed_io;
 757        uint8_t  nvme_support;  /* Firmware supports NVME */
 758        uint8_t  nvmet_support; /* driver supports NVMET */
 759#define LPFC_NVMET_MAX_PORTS    32
 760        uint8_t  mds_diags_support;
 761        uint32_t initial_imax;
 762        uint8_t  bbcredit_support;
 763
 764        /* HBA Config Parameters */
 765        uint32_t cfg_ack0;
 766        uint32_t cfg_enable_npiv;
 767        uint32_t cfg_enable_rrq;
 768        uint32_t cfg_topology;
 769        uint32_t cfg_link_speed;
 770#define LPFC_FCF_FOV 1          /* Fast fcf failover */
 771#define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 772        uint32_t cfg_fcf_failover_policy;
 773        uint32_t cfg_fcp_io_sched;
 774        uint32_t cfg_fcp2_no_tgt_reset;
 775        uint32_t cfg_cr_delay;
 776        uint32_t cfg_cr_count;
 777        uint32_t cfg_multi_ring_support;
 778        uint32_t cfg_multi_ring_rctl;
 779        uint32_t cfg_multi_ring_type;
 780        uint32_t cfg_poll;
 781        uint32_t cfg_poll_tmo;
 782        uint32_t cfg_task_mgmt_tmo;
 783        uint32_t cfg_use_msi;
 784        uint32_t cfg_auto_imax;
 785        uint32_t cfg_fcp_imax;
 786        uint32_t cfg_fcp_cpu_map;
 787        uint32_t cfg_fcp_io_channel;
 788        uint32_t cfg_suppress_rsp;
 789        uint32_t cfg_nvme_oas;
 790        uint32_t cfg_nvme_io_channel;
 791        uint32_t cfg_nvmet_mrq;
 792        uint32_t cfg_enable_nvmet;
 793        uint32_t cfg_nvme_enable_fb;
 794        uint32_t cfg_nvmet_fb_size;
 795        uint32_t cfg_total_seg_cnt;
 796        uint32_t cfg_sg_seg_cnt;
 797        uint32_t cfg_nvme_seg_cnt;
 798        uint32_t cfg_sg_dma_buf_size;
 799        uint64_t cfg_soft_wwnn;
 800        uint64_t cfg_soft_wwpn;
 801        uint32_t cfg_hba_queue_depth;
 802        uint32_t cfg_enable_hba_reset;
 803        uint32_t cfg_enable_hba_heartbeat;
 804        uint32_t cfg_fof;
 805        uint32_t cfg_EnableXLane;
 806        uint8_t cfg_oas_tgt_wwpn[8];
 807        uint8_t cfg_oas_vpt_wwpn[8];
 808        uint32_t cfg_oas_lun_state;
 809#define OAS_LUN_ENABLE  1
 810#define OAS_LUN_DISABLE 0
 811        uint32_t cfg_oas_lun_status;
 812#define OAS_LUN_STATUS_EXISTS   0x01
 813        uint32_t cfg_oas_flags;
 814#define OAS_FIND_ANY_VPORT      0x01
 815#define OAS_FIND_ANY_TARGET     0x02
 816#define OAS_LUN_VALID   0x04
 817        uint32_t cfg_oas_priority;
 818        uint32_t cfg_XLanePriority;
 819        uint32_t cfg_enable_bg;
 820        uint32_t cfg_prot_mask;
 821        uint32_t cfg_prot_guard;
 822        uint32_t cfg_hostmem_hgp;
 823        uint32_t cfg_log_verbose;
 824        uint32_t cfg_aer_support;
 825        uint32_t cfg_sriov_nr_virtfn;
 826        uint32_t cfg_request_firmware_upgrade;
 827        uint32_t cfg_iocb_cnt;
 828        uint32_t cfg_suppress_link_up;
 829        uint32_t cfg_rrq_xri_bitmap_sz;
 830        uint32_t cfg_delay_discovery;
 831        uint32_t cfg_sli_mode;
 832#define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 833#define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 834#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 835        uint32_t cfg_enable_dss;
 836        uint32_t cfg_fdmi_on;
 837#define LPFC_FDMI_NO_SUPPORT    0       /* FDMI not supported */
 838#define LPFC_FDMI_SUPPORT       1       /* FDMI supported? */
 839        uint32_t cfg_enable_SmartSAN;
 840        uint32_t cfg_enable_mds_diags;
 841        uint32_t cfg_enable_fc4_type;
 842        uint32_t cfg_enable_bbcr;       /*Enable BB Credit Recovery*/
 843        uint32_t cfg_xri_split;
 844#define LPFC_ENABLE_FCP  1
 845#define LPFC_ENABLE_NVME 2
 846#define LPFC_ENABLE_BOTH 3
 847        uint32_t io_channel_irqs;       /* number of irqs for io channels */
 848        struct nvmet_fc_target_port *targetport;
 849        lpfc_vpd_t vpd;         /* vital product data */
 850
 851        struct pci_dev *pcidev;
 852        struct list_head      work_list;
 853        uint32_t              work_ha;      /* Host Attention Bits for WT */
 854        uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 855        uint32_t              work_hs;      /* HS stored in case of ERRAT */
 856        uint32_t              work_status[2]; /* Extra status from SLIM */
 857
 858        wait_queue_head_t    work_waitq;
 859        struct task_struct   *worker_thread;
 860        unsigned long data_flags;
 861
 862        uint32_t hbq_in_use;            /* HBQs in use flag */
 863        uint32_t hbq_count;             /* Count of configured HBQs */
 864        struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 865
 866        atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
 867        atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
 868
 869        phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
 870        phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
 871        phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
 872        void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 873                                           PCI BAR0 */
 874        void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 875                                            PCI BAR2 */
 876
 877        void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
 878                                            PCI BAR0 with dual-ULP support */
 879        void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
 880                                            PCI BAR2 with dual-ULP support */
 881        void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
 882                                            PCI BAR4 with dual-ULP support */
 883#define PCI_64BIT_BAR0  0
 884#define PCI_64BIT_BAR2  2
 885#define PCI_64BIT_BAR4  4
 886        void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 887        void __iomem *HAregaddr;        /* virtual address for host attn reg */
 888        void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 889        void __iomem *HSregaddr;        /* virtual address for host status
 890                                           reg */
 891        void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 892
 893        struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 894        struct lpfc_pgp   *port_gp;
 895        uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 896        uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 897
 898        int brd_no;                     /* FC board number */
 899        char SerialNumber[32];          /* adapter Serial Number */
 900        char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 901        char ModelDesc[256];            /* Model Description */
 902        char ModelName[80];             /* Model Name */
 903        char ProgramType[256];          /* Program Type */
 904        char Port[20];                  /* Port No */
 905        uint8_t vpd_flag;               /* VPD data flag */
 906
 907#define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 908#define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 909#define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 910#define VPD_PORT            0x8         /* valid vpd port data */
 911#define VPD_MASK            0xf         /* mask for any vpd data */
 912
 913        uint8_t soft_wwn_enable;
 914
 915        struct timer_list fcp_poll_timer;
 916        struct timer_list eratt_poll;
 917        uint32_t eratt_poll_interval;
 918
 919        /*
 920         * stat  counters
 921         */
 922        atomic_t fc4ScsiInputRequests;
 923        atomic_t fc4ScsiOutputRequests;
 924        atomic_t fc4ScsiControlRequests;
 925        atomic_t fc4ScsiIoCmpls;
 926        atomic_t fc4NvmeInputRequests;
 927        atomic_t fc4NvmeOutputRequests;
 928        atomic_t fc4NvmeControlRequests;
 929        atomic_t fc4NvmeIoCmpls;
 930        atomic_t fc4NvmeLsRequests;
 931        atomic_t fc4NvmeLsCmpls;
 932
 933        uint64_t bg_guard_err_cnt;
 934        uint64_t bg_apptag_err_cnt;
 935        uint64_t bg_reftag_err_cnt;
 936
 937        /* fastpath list. */
 938        spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
 939        spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
 940        struct list_head lpfc_scsi_buf_list_get;
 941        struct list_head lpfc_scsi_buf_list_put;
 942        uint32_t total_scsi_bufs;
 943        spinlock_t nvme_buf_list_get_lock;  /* NVME buf alloc list lock */
 944        spinlock_t nvme_buf_list_put_lock;  /* NVME buf free list lock */
 945        struct list_head lpfc_nvme_buf_list_get;
 946        struct list_head lpfc_nvme_buf_list_put;
 947        uint32_t total_nvme_bufs;
 948        struct list_head lpfc_iocb_list;
 949        uint32_t total_iocbq_bufs;
 950        struct list_head active_rrq_list;
 951        spinlock_t hbalock;
 952
 953        /* dma_mem_pools */
 954        struct dma_pool *lpfc_sg_dma_buf_pool;
 955        struct dma_pool *lpfc_mbuf_pool;
 956        struct dma_pool *lpfc_hrb_pool; /* header receive buffer pool */
 957        struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
 958        struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
 959        struct dma_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 960        struct dma_pool *txrdy_payload_pool;
 961        struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 962
 963        mempool_t *mbox_mem_pool;
 964        mempool_t *nlp_mem_pool;
 965        mempool_t *rrq_pool;
 966        mempool_t *active_rrq_pool;
 967
 968        struct fc_host_statistics link_stats;
 969        enum intr_type_t intr_type;
 970        uint32_t intr_mode;
 971#define LPFC_INTR_ERROR 0xFFFFFFFF
 972        struct list_head port_list;
 973        struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
 974        uint16_t max_vpi;               /* Maximum virtual nports */
 975#define LPFC_MAX_VPI 0xFFFF             /* Max number of VPI supported */
 976        uint16_t max_vports;            /*
 977                                         * For IOV HBAs max_vpi can change
 978                                         * after a reset. max_vports is max
 979                                         * number of vports present. This can
 980                                         * be greater than max_vpi.
 981                                         */
 982        uint16_t vpi_base;
 983        uint16_t vfi_base;
 984        unsigned long *vpi_bmask;       /* vpi allocation table */
 985        uint16_t *vpi_ids;
 986        uint16_t vpi_count;
 987        struct list_head lpfc_vpi_blk_list;
 988
 989        /* Data structure used by fabric iocb scheduler */
 990        struct list_head fabric_iocb_list;
 991        atomic_t fabric_iocb_count;
 992        struct timer_list fabric_block_timer;
 993        unsigned long bit_flags;
 994#define FABRIC_COMANDS_BLOCKED  0
 995        atomic_t num_rsrc_err;
 996        atomic_t num_cmd_success;
 997        unsigned long last_rsrc_error_time;
 998        unsigned long last_ramp_down_time;
 999#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1000        struct dentry *hba_debugfs_root;

1001        atomic_t debugfs_vport_count;
1002        struct dentry *debug_hbqinfo;
1003        struct dentry *debug_dumpHostSlim;
1004        struct dentry *debug_dumpHBASlim;
1005        struct dentry *debug_dumpData;   /* BlockGuard BPL */
1006        struct dentry *debug_dumpDif;    /* BlockGuard BPL */
1007        struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1008        struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1009        struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1010        struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1011        struct dentry *debug_writeApp;   /* inject write app_tag errors */
1012        struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1013        struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1014        struct dentry *debug_readApp;    /* inject read app_tag errors */
1015        struct dentry *debug_readRef;    /* inject read ref_tag errors */
1016
1017        struct dentry *debug_nvmeio_trc;
1018        struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1019        atomic_t nvmeio_trc_cnt;
1020        uint32_t nvmeio_trc_size;
1021        uint32_t nvmeio_trc_output_idx;
1022
1023        /* T10 DIF error injection */
1024        uint32_t lpfc_injerr_wgrd_cnt;
1025        uint32_t lpfc_injerr_wapp_cnt;
1026        uint32_t lpfc_injerr_wref_cnt;
1027        uint32_t lpfc_injerr_rgrd_cnt;
1028        uint32_t lpfc_injerr_rapp_cnt;
1029        uint32_t lpfc_injerr_rref_cnt;
1030        uint32_t lpfc_injerr_nportid;
1031        struct lpfc_name lpfc_injerr_wwpn;
1032        sector_t lpfc_injerr_lba;
1033#define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
1034
1035        struct dentry *debug_slow_ring_trc;
1036        struct lpfc_debugfs_trc *slow_ring_trc;
1037        atomic_t slow_ring_trc_cnt;
1038        /* iDiag debugfs sub-directory */
1039        struct dentry *idiag_root;
1040        struct dentry *idiag_pci_cfg;
1041        struct dentry *idiag_bar_acc;
1042        struct dentry *idiag_que_info;
1043        struct dentry *idiag_que_acc;
1044        struct dentry *idiag_drb_acc;
1045        struct dentry *idiag_ctl_acc;
1046        struct dentry *idiag_mbx_acc;
1047        struct dentry *idiag_ext_acc;
1048        uint8_t lpfc_idiag_last_eq;
1049#endif
1050        uint16_t nvmeio_trc_on;
1051
1052        /* Used for deferred freeing of ELS data buffers */
1053        struct list_head elsbuf;
1054        int elsbuf_cnt;
1055        int elsbuf_prev_cnt;
1056
1057        uint8_t temp_sensor_support;
1058        /* Fields used for heart beat. */
1059        unsigned long last_eqdelay_time;
1060        unsigned long last_completion_time;
1061        unsigned long skipped_hb;
1062        struct timer_list hb_tmofunc;
1063        uint8_t hb_outstanding;
1064        struct timer_list rrq_tmr;
1065        enum hba_temp_state over_temp_state;
1066        /* ndlp reference management */
1067        spinlock_t ndlp_lock;
1068        /*
1069         * Following bit will be set for all buffer tags which are not
1070         * associated with any HBQ.
1071         */
1072#define QUE_BUFTAG_BIT  (1<<31)
1073        uint32_t buffer_tag_count;
1074        int wait_4_mlo_maint_flg;
1075        wait_queue_head_t wait_4_mlo_m_q;
1076        /* data structure used for latency data collection */
1077#define LPFC_NO_BUCKET     0
1078#define LPFC_LINEAR_BUCKET 1
1079#define LPFC_POWER2_BUCKET 2
1080        uint8_t  bucket_type;
1081        uint32_t bucket_base;
1082        uint32_t bucket_step;
1083
1084/* Maximum number of events that can be outstanding at any time*/
1085#define LPFC_MAX_EVT_COUNT 512
1086        atomic_t fast_event_count;
1087        uint32_t fcoe_eventtag;
1088        uint32_t fcoe_eventtag_at_fcf_scan;
1089        uint32_t fcoe_cvl_eventtag;
1090        uint32_t fcoe_cvl_eventtag_attn;
1091        struct lpfc_fcf fcf;
1092        uint8_t fc_map[3];
1093        uint8_t valid_vlan;
1094        uint16_t vlan_id;
1095        struct list_head fcf_conn_rec_list;
1096
1097        spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1098        struct list_head ct_ev_waiters;
1099        struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1100        uint32_t ctx_idx;
1101
1102        uint8_t menlo_flag;     /* menlo generic flags */
1103#define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
1104        uint32_t iocb_cnt;
1105        uint32_t iocb_max;
1106        atomic_t sdev_cnt;
1107        uint8_t fips_spec_rev;
1108        uint8_t fips_level;
1109        spinlock_t devicelock;  /* lock for luns list */
1110        mempool_t *device_data_mem_pool;
1111        struct list_head luns;
1112#define LPFC_TRANSGRESSION_HIGH_TEMPERATURE     0x0080
1113#define LPFC_TRANSGRESSION_LOW_TEMPERATURE      0x0040
1114#define LPFC_TRANSGRESSION_HIGH_VOLTAGE         0x0020
1115#define LPFC_TRANSGRESSION_LOW_VOLTAGE          0x0010
1116#define LPFC_TRANSGRESSION_HIGH_TXBIAS          0x0008
1117#define LPFC_TRANSGRESSION_LOW_TXBIAS           0x0004
1118#define LPFC_TRANSGRESSION_HIGH_TXPOWER         0x0002
1119#define LPFC_TRANSGRESSION_LOW_TXPOWER          0x0001
1120#define LPFC_TRANSGRESSION_HIGH_RXPOWER         0x8000
1121#define LPFC_TRANSGRESSION_LOW_RXPOWER          0x4000
1122        uint16_t sfp_alarm;
1123        uint16_t sfp_warning;
1124
1125#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1126#define LPFC_CHECK_CPU_CNT    32
1127        uint32_t cpucheck_rcv_io[LPFC_CHECK_CPU_CNT];
1128        uint32_t cpucheck_xmt_io[LPFC_CHECK_CPU_CNT];
1129        uint32_t cpucheck_cmpl_io[LPFC_CHECK_CPU_CNT];
1130        uint32_t cpucheck_ccmpl_io[LPFC_CHECK_CPU_CNT];
1131        uint16_t cpucheck_on;
1132#define LPFC_CHECK_OFF          0
1133#define LPFC_CHECK_NVME_IO      1
1134#define LPFC_CHECK_NVMET_RCV    2
1135#define LPFC_CHECK_NVMET_IO     4
1136        uint16_t ktime_on;
1137        uint64_t ktime_data_samples;
1138        uint64_t ktime_status_samples;
1139        uint64_t ktime_last_cmd;
1140        uint64_t ktime_seg1_total;
1141        uint64_t ktime_seg1_min;
1142        uint64_t ktime_seg1_max;
1143        uint64_t ktime_seg2_total;
1144        uint64_t ktime_seg2_min;
1145        uint64_t ktime_seg2_max;
1146        uint64_t ktime_seg3_total;
1147        uint64_t ktime_seg3_min;
1148        uint64_t ktime_seg3_max;
1149        uint64_t ktime_seg4_total;
1150        uint64_t ktime_seg4_min;
1151        uint64_t ktime_seg4_max;
1152        uint64_t ktime_seg5_total;
1153        uint64_t ktime_seg5_min;
1154        uint64_t ktime_seg5_max;
1155        uint64_t ktime_seg6_total;
1156        uint64_t ktime_seg6_min;
1157        uint64_t ktime_seg6_max;
1158        uint64_t ktime_seg7_total;
1159        uint64_t ktime_seg7_min;
1160        uint64_t ktime_seg7_max;
1161        uint64_t ktime_seg8_total;
1162        uint64_t ktime_seg8_min;
1163        uint64_t ktime_seg8_max;
1164        uint64_t ktime_seg9_total;
1165        uint64_t ktime_seg9_min;
1166        uint64_t ktime_seg9_max;
1167        uint64_t ktime_seg10_total;
1168        uint64_t ktime_seg10_min;
1169        uint64_t ktime_seg10_max;
1170#endif
1171};
1172
1173static inline struct Scsi_Host *
1174lpfc_shost_from_vport(struct lpfc_vport *vport)
1175{
1176        return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1177}
1178
1179static inline void
1180lpfc_set_loopback_flag(struct lpfc_hba *phba)
1181{
1182        if (phba->cfg_topology == FLAGS_LOCAL_LB)
1183                phba->link_flag |= LS_LOOPBACK_MODE;
1184        else
1185                phba->link_flag &= ~LS_LOOPBACK_MODE;
1186}
1187
1188static inline int
1189lpfc_is_link_up(struct lpfc_hba *phba)
1190{
1191        return  phba->link_state == LPFC_LINK_UP ||
1192                phba->link_state == LPFC_CLEAR_LA ||
1193                phba->link_state == LPFC_HBA_READY;
1194}
1195
1196static inline void
1197lpfc_worker_wake_up(struct lpfc_hba *phba)
1198{
1199        /* Set the lpfc data pending flag */
1200        set_bit(LPFC_DATA_READY, &phba->data_flags);
1201
1202        /* Wake up worker thread */
1203        wake_up(&phba->work_waitq);
1204        return;
1205}
1206
1207static inline int
1208lpfc_readl(void __iomem *addr, uint32_t *data)
1209{
1210        uint32_t temp;
1211        temp = readl(addr);
1212        if (temp == 0xffffffff)
1213                return -EIO;
1214        *data = temp;
1215        return 0;
1216}
1217
1218static inline int
1219lpfc_sli_read_hs(struct lpfc_hba *phba)
1220{
1221        /*
1222         * There was a link/board error. Read the status register to retrieve
1223         * the error event and process it.
1224         */
1225        phba->sli.slistat.err_attn_event++;
1226
1227        /* Save status info and check for unplug error */
1228        if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1229                lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1230                lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1231                return -EIO;
1232        }
1233
1234        /* Clear chip Host Attention error bit */
1235        writel(HA_ERATT, phba->HAregaddr);
1236        readl(phba->HAregaddr); /* flush */
1237        phba->pport->stopped = 1;
1238
1239        return 0;
1240}
1241
1242static inline struct lpfc_sli_ring *
1243lpfc_phba_elsring(struct lpfc_hba *phba)
1244{
1245        if (phba->sli_rev == LPFC_SLI_REV4) {
1246                if (phba->sli4_hba.els_wq)
1247                        return phba->sli4_hba.els_wq->pring;
1248                else
1249                        return NULL;
1250        }
1251        return &phba->sli.sli3_ring[LPFC_ELS_RING];
1252}
1253
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