drivers/scsi/lpfc/lpfc.h

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <scsi/scsi_host.h>
  23 #include <linux/ktime.h>
  24
  25 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  26 #define CONFIG_SCSI_LPFC_DEBUG_FS
  27 #endif
  28
  29 struct lpfc_sli2_slim;
  30
  31 #define ELX_MODEL_NAME_SIZE     80
  32
  33 #define LPFC_PCI_DEV_LP         0x1
  34 #define LPFC_PCI_DEV_OC         0x2
  35
  36 #define LPFC_SLI_REV2           2
  37 #define LPFC_SLI_REV3           3
  38 #define LPFC_SLI_REV4           4
  39
  40 #define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  41 #define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  42                                            requests */
  43 #define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  44                                            the NameServer  before giving up. */
  45 #define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  46 #define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  47 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  48                 cmnd for menlo needs nearly twice as for firmware
  49                 downloads using bsg */
  50
  51 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
  52 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
  53 #define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
  54 #define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  55 #define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
  56 #define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
  57 #define LPFC_MIN_NVME_SEG_CNT   254
  58
  59 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  60 #define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  61 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  62 #define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  63 #define LPFC_TGTQ_INTERVAL      40000   /* Min amount of time between tgt
  64                                            queue depth change in millisecs */
  65 #define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  66 #define LPFC_MIN_TGT_QDEPTH     10
  67 #define LPFC_MAX_TGT_QDEPTH     0xFFFF
  68
  69 #define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  70                                            collection. */
  71 /*
  72  * Following time intervals are used of adjusting SCSI device
  73  * queue depths when there are driver resource error or Firmware
  74  * resource error.
  75  */
  76 /* 1 Second */
  77 #define QUEUE_RAMP_DOWN_INTERVAL        (msecs_to_jiffies(1000 * 1))
  78
  79 /* Number of exchanges reserved for discovery to complete */
  80 #define LPFC_DISC_IOCB_BUFF_COUNT 20
  81
  82 #define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  83 #define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  84
  85 #define LPFC_LOOK_AHEAD_OFF     0       /* Look ahead logic is turned off */
  86
  87 /* Error Attention event polling interval */
  88 #define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */
  89
  90 /* Define macros for 64 bit support */
  91 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  92 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  93 #define getPaddr(high, low)  ((dma_addr_t)( \
  94                              (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  95 /* Provide maximum configuration definitions. */
  96 #define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
  97 #define FC_MAX_ADPTMSG          64
  98
  99 #define MAX_HBAEVT      32
 100
 101 /* Number of MSI-X vectors the driver uses */
 102 #define LPFC_MSIX_VECTORS       2
 103
 104 /* lpfc wait event data ready flag */
 105 #define LPFC_DATA_READY         (1<<0)
 106
 107 /* queue dump line buffer size */
 108 #define LPFC_LBUF_SZ            128
 109
 110 /* mailbox system shutdown options */
 111 #define LPFC_MBX_NO_WAIT        0
 112 #define LPFC_MBX_WAIT           1
 113
 114 enum lpfc_polling_flags {
 115         ENABLE_FCP_RING_POLLING = 0x1,
 116         DISABLE_FCP_RING_INT    = 0x2
 117 };
 118
 119 struct perf_prof {
 120         uint16_t cmd_cpu[40];
 121         uint16_t rsp_cpu[40];
 122         uint16_t qh_cpu[40];
 123         uint16_t wqidx[40];
 124 };
 125
 126 #define LPFC_FC4_TYPE_BITMASK   0x00000100
 127
 128 /* Provide DMA memory definitions the driver uses per port instance. */
 129 struct lpfc_dmabuf {
 130         struct list_head list;
 131         void *virt;             /* virtual address ptr */
 132         dma_addr_t phys;        /* mapped address */
 133         uint32_t   buffer_tag;  /* used for tagged queue ring */
 134 };
 135
 136 struct lpfc_dma_pool {
 137         struct lpfc_dmabuf   *elements;
 138         uint32_t    max_count;
 139         uint32_t    current_count;
 140 };
 141
 142 struct hbq_dmabuf {
 143         struct lpfc_dmabuf hbuf;
 144         struct lpfc_dmabuf dbuf;
 145         uint16_t total_size;
 146         uint16_t bytes_recv;
 147         uint32_t tag;
 148         struct lpfc_cq_event cq_event;
 149         unsigned long time_stamp;
 150         void *context;
 151 };
 152
 153 struct rqb_dmabuf {
 154         struct lpfc_dmabuf hbuf;
 155         struct lpfc_dmabuf dbuf;
 156         uint16_t total_size;
 157         uint16_t bytes_recv;
 158         void *context;
 159         struct lpfc_iocbq *iocbq;
 160         struct lpfc_sglq *sglq;
 161         struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
 162         struct lpfc_queue *drq;   /* ptr to associated Data RQ */
 163 };
 164
 165 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 166 #define MEM_PRI         0x100
 167
 168
 169 /****************************************************************************/
 170 /*      Device VPD save area                                                */
 171 /****************************************************************************/
 172 typedef struct lpfc_vpd {
 173         uint32_t status;        /* vpd status value */
 174         uint32_t length;        /* number of bytes actually returned */
 175         struct {
 176                 uint32_t rsvd1; /* Revision numbers */
 177                 uint32_t biuRev;
 178                 uint32_t smRev;
 179                 uint32_t smFwRev;
 180                 uint32_t endecRev;
 181                 uint16_t rBit;
 182                 uint8_t fcphHigh;
 183                 uint8_t fcphLow;
 184                 uint8_t feaLevelHigh;
 185                 uint8_t feaLevelLow;
 186                 uint32_t postKernRev;
 187                 uint32_t opFwRev;
 188                 uint8_t opFwName[16];
 189                 uint32_t sli1FwRev;
 190                 uint8_t sli1FwName[16];
 191                 uint32_t sli2FwRev;
 192                 uint8_t sli2FwName[16];
 193         } rev;
 194         struct {
 195 #ifdef __BIG_ENDIAN_BITFIELD
 196                 uint32_t rsvd3  :19;  /* Reserved                             */
 197                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 198                 uint32_t rsvd2  : 3;  /* Reserved                             */
 199                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 200                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 201                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 202                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 203                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 204                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 205                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 206                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 207                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 208 #else   /*  __LITTLE_ENDIAN */
 209                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 210                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 211                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 212                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 213                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 214                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 215                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 216                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 217                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 218                 uint32_t rsvd2  : 3;  /* Reserved                             */
 219                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 220                 uint32_t rsvd3  :19;  /* Reserved                             */
 221 #endif
 222         } sli3Feat;
 223 } lpfc_vpd_t;
 224
 225 struct lpfc_scsi_buf;
 226
 227
 228 /*
 229  * lpfc stat counters
 230  */
 231 struct lpfc_stats {
 232         /* Statistics for ELS commands */
 233         uint32_t elsLogiCol;
 234         uint32_t elsRetryExceeded;
 235         uint32_t elsXmitRetry;
 236         uint32_t elsDelayRetry;
 237         uint32_t elsRcvDrop;
 238         uint32_t elsRcvFrame;
 239         uint32_t elsRcvRSCN;
 240         uint32_t elsRcvRNID;
 241         uint32_t elsRcvFARP;
 242         uint32_t elsRcvFARPR;
 243         uint32_t elsRcvFLOGI;
 244         uint32_t elsRcvPLOGI;
 245         uint32_t elsRcvADISC;
 246         uint32_t elsRcvPDISC;
 247         uint32_t elsRcvFAN;
 248         uint32_t elsRcvLOGO;
 249         uint32_t elsRcvPRLO;
 250         uint32_t elsRcvPRLI;
 251         uint32_t elsRcvLIRR;
 252         uint32_t elsRcvRLS;
 253         uint32_t elsRcvRPS;
 254         uint32_t elsRcvRPL;
 255         uint32_t elsRcvRRQ;
 256         uint32_t elsRcvRTV;
 257         uint32_t elsRcvECHO;
 258         uint32_t elsRcvLCB;
 259         uint32_t elsRcvRDP;
 260         uint32_t elsXmitFLOGI;
 261         uint32_t elsXmitFDISC;
 262         uint32_t elsXmitPLOGI;
 263         uint32_t elsXmitPRLI;
 264         uint32_t elsXmitADISC;
 265         uint32_t elsXmitLOGO;
 266         uint32_t elsXmitSCR;
 267         uint32_t elsXmitRNID;
 268         uint32_t elsXmitFARP;
 269         uint32_t elsXmitFARPR;
 270         uint32_t elsXmitACC;
 271         uint32_t elsXmitLSRJT;
 272
 273         uint32_t frameRcvBcast;
 274         uint32_t frameRcvMulti;
 275         uint32_t strayXmitCmpl;
 276         uint32_t frameXmitDelay;
 277         uint32_t xriCmdCmpl;
 278         uint32_t xriStatErr;
 279         uint32_t LinkUp;
 280         uint32_t LinkDown;
 281         uint32_t LinkMultiEvent;
 282         uint32_t NoRcvBuf;
 283         uint32_t fcpCmd;
 284         uint32_t fcpCmpl;
 285         uint32_t fcpRspErr;
 286         uint32_t fcpRemoteStop;
 287         uint32_t fcpPortRjt;
 288         uint32_t fcpPortBusy;
 289         uint32_t fcpError;
 290         uint32_t fcpLocalErr;
 291 };
 292
 293 struct lpfc_hba;
 294
 295
 296 enum discovery_state {
 297         LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 298         LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 299         LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 300         LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 301         LPFC_FDISC             =  8,    /* FDISC sent for vport */
 302         LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 303                                          * configured */
 304         LPFC_NS_REG            =  10,   /* Register with NameServer */
 305         LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 306         LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 307                                          * device authentication / discovery */
 308         LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 309         LPFC_VPORT_READY       =  32,
 310 };
 311
 312 enum hba_state {
 313         LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 314         LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 315         LPFC_INIT_START      =   2,   /* Initial state after board reset */
 316         LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 317         LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 318         LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 319         LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 320                                        * CLEAR_LA */
 321         LPFC_HBA_READY       =  32,
 322         LPFC_HBA_ERROR       =  -1
 323 };
 324
 325 struct lpfc_vport {
 326         struct lpfc_hba *phba;
 327         struct list_head listentry;
 328         uint8_t port_type;
 329 #define LPFC_PHYSICAL_PORT 1
 330 #define LPFC_NPIV_PORT  2
 331 #define LPFC_FABRIC_PORT 3
 332         enum discovery_state port_state;
 333
 334         uint16_t vpi;
 335         uint16_t vfi;
 336         uint8_t vpi_state;
 337 #define LPFC_VPI_REGISTERED     0x1
 338
 339         uint32_t fc_flag;       /* FC flags */
 340 /* Several of these flags are HBA centric and should be moved to
 341  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 342  */
 343 #define FC_PT2PT                0x1      /* pt2pt with no fabric */
 344 #define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 345 #define FC_DISC_TMO             0x4      /* Discovery timer running */
 346 #define FC_PUBLIC_LOOP          0x8      /* Public loop */
 347 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 348 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 349 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 350 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 351 #define FC_FABRIC               0x100    /* We are fabric attached */
 352 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 353 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 354 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 355 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 356 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 357 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 358 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 359 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 360 #define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 361 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 362 #define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 363 #define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 364 #define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 365 #define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 366
 367         uint32_t ct_flags;
 368 #define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 369 #define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 370 #define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 371 #define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 372 #define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 373
 374         struct list_head fc_nodes;
 375
 376         /* Keep counters for the number of entries in each list. */
 377         uint16_t fc_plogi_cnt;
 378         uint16_t fc_adisc_cnt;
 379         uint16_t fc_reglogin_cnt;
 380         uint16_t fc_prli_cnt;
 381         uint16_t fc_unmap_cnt;
 382         uint16_t fc_map_cnt;
 383         uint16_t fc_npr_cnt;
 384         uint16_t fc_unused_cnt;
 385         struct serv_parm fc_sparam;     /* buffer for our service parameters */
 386
 387         uint32_t fc_myDID;      /* fibre channel S_ID */
 388         uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 389         struct lpfc_name fabric_portname;
 390         struct lpfc_name fabric_nodename;
 391
 392         int32_t stopped;   /* HBA has not been restarted since last ERATT */
 393         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 394
 395         uint32_t num_disc_nodes;        /* in addition to hba_state */
 396         uint32_t gidft_inp;             /* cnt of outstanding GID_FTs */
 397
 398         uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 399         uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 400         uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 401         struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 402         struct lpfc_name fc_nodename;   /* fc nodename */
 403         struct lpfc_name fc_portname;   /* fc portname */
 404
 405         struct lpfc_work_evt disc_timeout_evt;
 406
 407         struct timer_list fc_disctmo;   /* Discovery rescue timer */
 408         uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 409         uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 410
 411         spinlock_t work_port_lock;
 412         uint32_t work_port_events; /* Timeout to be handled  */
 413 #define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 414 #define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 415 #define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 416
 417 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 418 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 419 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 420 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 421 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 422 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 423
 424         struct timer_list els_tmofunc;
 425         struct timer_list delayed_disc_tmo;
 426
 427         int unreg_vpi_cmpl;
 428
 429         uint8_t load_flag;
 430 #define FC_LOADING              0x1     /* HBA in process of loading drvr */
 431 #define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 432 #define FC_ALLOW_FDMI           0x4     /* port is ready for FDMI requests */
 433         /* Vport Config Parameters */
 434         uint32_t cfg_scan_down;
 435         uint32_t cfg_lun_queue_depth;
 436         uint32_t cfg_nodev_tmo;
 437         uint32_t cfg_devloss_tmo;
 438         uint32_t cfg_restrict_login;
 439         uint32_t cfg_peer_port_login;
 440         uint32_t cfg_fcp_class;
 441         uint32_t cfg_use_adisc;
 442         uint32_t cfg_discovery_threads;
 443         uint32_t cfg_log_verbose;
 444         uint32_t cfg_max_luns;
 445         uint32_t cfg_enable_da_id;
 446         uint32_t cfg_max_scsicmpl_time;
 447         uint32_t cfg_tgt_queue_depth;
 448         uint32_t cfg_first_burst_size;
 449         uint32_t dev_loss_tmo_changed;
 450
 451         struct fc_vport *fc_vport;
 452
 453 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 454         struct dentry *debug_disc_trc;
 455         struct dentry *debug_nodelist;
 456         struct dentry *vport_debugfs_root;
 457         struct lpfc_debugfs_trc *disc_trc;
 458         atomic_t disc_trc_cnt;
 459 #endif
 460         uint8_t stat_data_enabled;
 461         uint8_t stat_data_blocked;
 462         struct list_head rcv_buffer_list;
 463         unsigned long rcv_buffer_time_stamp;
 464         uint32_t vport_flag;
 465 #define STATIC_VPORT    1
 466
 467         uint16_t fdmi_num_disc;
 468         uint32_t fdmi_hba_mask;
 469         uint32_t fdmi_port_mask;
 470
 471         /* There is a single nvme instance per vport. */
 472         struct nvme_fc_local_port *localport;
 473         uint8_t  nvmei_support; /* driver supports NVME Initiator */
 474         uint32_t last_fcp_wqidx;
 475 };
 476
 477 struct hbq_s {
 478         uint16_t entry_count;     /* Current number of HBQ slots */
 479         uint16_t buffer_count;    /* Current number of buffers posted */
 480         uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 481         uint32_t hbqPutIdx;       /* HBQ slot to use */
 482         uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 483         void    *hbq_virt;        /* Virtual ptr to this hbq */
 484         struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 485                                   /* Callback for HBQ buffer allocation */
 486         struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 487                                   /* Callback for HBQ buffer free */
 488         void               (*hbq_free_buffer) (struct lpfc_hba *,
 489                                                struct hbq_dmabuf *);
 490 };
 491
 492 /* this matches the position in the lpfc_hbq_defs array */
 493 #define LPFC_ELS_HBQ    0
 494 #define LPFC_MAX_HBQS   1
 495
 496 enum hba_temp_state {
 497         HBA_NORMAL_TEMP,
 498         HBA_OVER_TEMP
 499 };
 500
 501 enum intr_type_t {
 502         NONE = 0,
 503         INTx,
 504         MSI,
 505         MSIX,
 506 };
 507
 508 #define LPFC_CT_CTX_MAX         64
 509 struct unsol_rcv_ct_ctx {
 510         uint32_t ctxt_id;
 511         uint32_t SID;
 512         uint32_t valid;
 513 #define UNSOL_INVALID           0
 514 #define UNSOL_VALID             1
 515         uint16_t oxid;
 516         uint16_t rxid;
 517 };
 518
 519 #define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 520 #define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 521 #define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 522 #define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 523 #define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 524 #define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 525 #define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 526 #define LPFC_USER_LINK_SPEED_32G        32      /* 32 Gigabaud */
 527 #define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_32G
 528 #define LPFC_USER_LINK_SPEED_BITMAP  ((1ULL << LPFC_USER_LINK_SPEED_32G) | \
 529                                      (1 << LPFC_USER_LINK_SPEED_16G) | \
 530                                      (1 << LPFC_USER_LINK_SPEED_10G) | \
 531                                      (1 << LPFC_USER_LINK_SPEED_8G) | \
 532                                      (1 << LPFC_USER_LINK_SPEED_4G) | \
 533                                      (1 << LPFC_USER_LINK_SPEED_2G) | \
 534                                      (1 << LPFC_USER_LINK_SPEED_1G) | \
 535                                      (1 << LPFC_USER_LINK_SPEED_AUTO))
 536 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32"
 537
 538 enum nemb_type {
 539         nemb_mse = 1,
 540         nemb_hbd
 541 };
 542
 543 enum mbox_type {
 544         mbox_rd = 1,
 545         mbox_wr
 546 };
 547
 548 enum dma_type {
 549         dma_mbox = 1,
 550         dma_ebuf
 551 };
 552
 553 enum sta_type {
 554         sta_pre_addr = 1,
 555         sta_pos_addr
 556 };
 557
 558 struct lpfc_mbox_ext_buf_ctx {
 559         uint32_t state;
 560 #define LPFC_BSG_MBOX_IDLE              0
 561 #define LPFC_BSG_MBOX_HOST              1
 562 #define LPFC_BSG_MBOX_PORT              2
 563 #define LPFC_BSG_MBOX_DONE              3
 564 #define LPFC_BSG_MBOX_ABTS              4
 565         enum nemb_type nembType;
 566         enum mbox_type mboxType;
 567         uint32_t numBuf;
 568         uint32_t mbxTag;
 569         uint32_t seqNum;
 570         struct lpfc_dmabuf *mbx_dmabuf;
 571         struct list_head ext_dmabuf_list;
 572 };
 573
 574 struct lpfc_hba {
 575         /* SCSI interface function jump table entries */
 576         int (*lpfc_new_scsi_buf)
 577                 (struct lpfc_vport *, int);
 578         struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
 579                 (struct lpfc_hba *, struct lpfc_nodelist *);
 580         int (*lpfc_scsi_prep_dma_buf)
 581                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 582         void (*lpfc_scsi_unprep_dma_buf)
 583                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 584         void (*lpfc_release_scsi_buf)
 585                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 586         void (*lpfc_rampdown_queue_depth)
 587                 (struct lpfc_hba *);
 588         void (*lpfc_scsi_prep_cmnd)
 589                 (struct lpfc_vport *, struct lpfc_scsi_buf *,
 590                  struct lpfc_nodelist *);
 591
 592         /* IOCB interface function jump table entries */
 593         int (*__lpfc_sli_issue_iocb)
 594                 (struct lpfc_hba *, uint32_t,
 595                  struct lpfc_iocbq *, uint32_t);
 596         void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 597                          struct lpfc_iocbq *);
 598         int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 599         IOCB_t * (*lpfc_get_iocb_from_iocbq)
 600                 (struct lpfc_iocbq *);
 601         void (*lpfc_scsi_cmd_iocb_cmpl)
 602                 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 603
 604         /* MBOX interface function jump table entries */
 605         int (*lpfc_sli_issue_mbox)
 606                 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 607
 608         /* Slow-path IOCB process function jump table entries */
 609         void (*lpfc_sli_handle_slow_ring_event)
 610                 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 611                  uint32_t mask);
 612
 613         /* INIT device interface function jump table entries */
 614         int (*lpfc_sli_hbq_to_firmware)
 615                 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 616         int (*lpfc_sli_brdrestart)
 617                 (struct lpfc_hba *);
 618         int (*lpfc_sli_brdready)
 619                 (struct lpfc_hba *, uint32_t);
 620         void (*lpfc_handle_eratt)
 621                 (struct lpfc_hba *);
 622         void (*lpfc_stop_port)
 623                 (struct lpfc_hba *);
 624         int (*lpfc_hba_init_link)
 625                 (struct lpfc_hba *, uint32_t);
 626         int (*lpfc_hba_down_link)
 627                 (struct lpfc_hba *, uint32_t);
 628         int (*lpfc_selective_reset)
 629                 (struct lpfc_hba *);
 630
 631         int (*lpfc_bg_scsi_prep_dma_buf)
 632                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 633         /* Add new entries here */
 634
 635         /* SLI4 specific HBA data structure */
 636         struct lpfc_sli4_hba sli4_hba;
 637
 638         struct lpfc_sli sli;
 639         uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 640         uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 641         uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 642 #define LPFC_SLI3_HBQ_ENABLED           0x01
 643 #define LPFC_SLI3_NPIV_ENABLED          0x02
 644 #define LPFC_SLI3_VPORT_TEARDOWN        0x04
 645 #define LPFC_SLI3_CRP_ENABLED           0x08
 646 #define LPFC_SLI3_BG_ENABLED            0x20
 647 #define LPFC_SLI3_DSS_ENABLED           0x40
 648 #define LPFC_SLI4_PERFH_ENABLED         0x80
 649 #define LPFC_SLI4_PHWQ_ENABLED          0x100
 650         uint32_t iocb_cmd_size;
 651         uint32_t iocb_rsp_size;
 652
 653         enum hba_state link_state;
 654         uint32_t link_flag;     /* link state flags */
 655 #define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 656                                         /* This flag is set while issuing */
 657                                         /* INIT_LINK mailbox command */
 658 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 659 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 660
 661         uint32_t hba_flag;      /* hba generic flags */
 662 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 663 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 664 #define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 665 #define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 666 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 667 #define FCP_XRI_ABORT_EVENT     0x20
 668 #define ELS_XRI_ABORT_EVENT     0x40
 669 #define ASYNC_EVENT             0x80
 670 #define LINK_DISABLED           0x100 /* Link disabled by user */
 671 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 672 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 673 #define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 674 #define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 675 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 676 #define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 677 #define HBA_FCP_IOQ_FLUSH       0x8000 /* FCP I/O queues being flushed */
 678 #define HBA_FW_DUMP_OP          0x10000 /* Skips fn reset before FW dump */
 679 #define HBA_RECOVERABLE_UE      0x20000 /* Firmware supports recoverable UE */
 680 #define HBA_FORCED_LINK_SPEED   0x40000 /*
 681                                          * Firmware supports Forced Link Speed
 682                                          * capability
 683                                          */
 684 #define HBA_NVME_IOQ_FLUSH      0x80000 /* NVME IO queues flushed. */
 685
 686         uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 687         struct lpfc_dmabuf slim2p;
 688
 689         MAILBOX_t *mbox;
 690         uint32_t *mbox_ext;
 691         struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 692         uint32_t ha_copy;
 693         struct _PCB *pcb;
 694         struct _IOCB *IOCBs;
 695
 696         struct lpfc_dmabuf hbqslimp;
 697
 698         uint16_t pci_cfg_value;
 699
 700         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 701
 702         uint32_t fc_eventTag;   /* event tag for link attention */
 703         uint32_t link_events;
 704
 705         /* These fields used to be binfo */
 706         uint32_t fc_pref_DID;   /* preferred D_ID */
 707         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 708         uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 709         uint32_t fc_edtov;      /* E_D_TOV timer value */
 710         uint32_t fc_arbtov;     /* ARB_TOV timer value */
 711         uint32_t fc_ratov;      /* R_A_TOV timer value */
 712         uint32_t fc_rttov;      /* R_T_TOV timer value */
 713         uint32_t fc_altov;      /* AL_TOV timer value */
 714         uint32_t fc_crtov;      /* C_R_TOV timer value */
 715         uint32_t fc_citov;      /* C_I_TOV timer value */
 716
 717         struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 718         uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 719
 720         uint32_t lmt;
 721
 722         uint32_t fc_topology;   /* link topology, from LINK INIT */
 723         uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
 724
 725         struct lpfc_stats fc_stat;
 726
 727         struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 728         uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 729
 730         uint8_t  wwnn[8];
 731         uint8_t  wwpn[8];
 732         uint32_t RandomData[7];
 733         uint8_t  fcp_embed_io;
 734         uint8_t  nvme_support;  /* Firmware supports NVME */
 735         uint8_t  nvmet_support; /* driver supports NVMET */
 736         uint8_t  mds_diags_support;
 737
 738         /* HBA Config Parameters */
 739         uint32_t cfg_ack0;
 740         uint32_t cfg_enable_npiv;
 741         uint32_t cfg_enable_rrq;
 742         uint32_t cfg_topology;
 743         uint32_t cfg_link_speed;
 744 #define LPFC_FCF_FOV 1          /* Fast fcf failover */
 745 #define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 746         uint32_t cfg_fcf_failover_policy;
 747         uint32_t cfg_fcp_io_sched;
 748         uint32_t cfg_fcp2_no_tgt_reset;
 749         uint32_t cfg_cr_delay;
 750         uint32_t cfg_cr_count;
 751         uint32_t cfg_multi_ring_support;
 752         uint32_t cfg_multi_ring_rctl;
 753         uint32_t cfg_multi_ring_type;
 754         uint32_t cfg_poll;
 755         uint32_t cfg_poll_tmo;
 756         uint32_t cfg_task_mgmt_tmo;
 757         uint32_t cfg_use_msi;
 758         uint32_t cfg_fcp_imax;
 759         uint32_t cfg_fcp_cpu_map;
 760         uint32_t cfg_fcp_io_channel;
 761         uint32_t cfg_nvme_oas;
 762         uint32_t cfg_nvme_io_channel;
 763         uint32_t cfg_nvme_enable_fb;
 764         uint32_t cfg_total_seg_cnt;
 765         uint32_t cfg_sg_seg_cnt;
 766         uint32_t cfg_sg_dma_buf_size;
 767         uint64_t cfg_soft_wwnn;
 768         uint64_t cfg_soft_wwpn;
 769         uint32_t cfg_hba_queue_depth;
 770         uint32_t cfg_enable_hba_reset;
 771         uint32_t cfg_enable_hba_heartbeat;
 772         uint32_t cfg_fof;
 773         uint32_t cfg_EnableXLane;
 774         uint8_t cfg_oas_tgt_wwpn[8];
 775         uint8_t cfg_oas_vpt_wwpn[8];
 776         uint32_t cfg_oas_lun_state;
 777 #define OAS_LUN_ENABLE  1
 778 #define OAS_LUN_DISABLE 0
 779         uint32_t cfg_oas_lun_status;
 780 #define OAS_LUN_STATUS_EXISTS   0x01
 781         uint32_t cfg_oas_flags;
 782 #define OAS_FIND_ANY_VPORT      0x01
 783 #define OAS_FIND_ANY_TARGET     0x02
 784 #define OAS_LUN_VALID   0x04
 785         uint32_t cfg_oas_priority;
 786         uint32_t cfg_XLanePriority;
 787         uint32_t cfg_enable_bg;
 788         uint32_t cfg_prot_mask;
 789         uint32_t cfg_prot_guard;
 790         uint32_t cfg_hostmem_hgp;
 791         uint32_t cfg_log_verbose;
 792         uint32_t cfg_aer_support;
 793         uint32_t cfg_sriov_nr_virtfn;
 794         uint32_t cfg_request_firmware_upgrade;
 795         uint32_t cfg_iocb_cnt;
 796         uint32_t cfg_suppress_link_up;
 797         uint32_t cfg_rrq_xri_bitmap_sz;
 798         uint32_t cfg_delay_discovery;
 799         uint32_t cfg_sli_mode;
 800 #define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 801 #define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 802 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 803         uint32_t cfg_enable_dss;
 804         uint32_t cfg_fdmi_on;
 805 #define LPFC_FDMI_NO_SUPPORT    0       /* FDMI not supported */
 806 #define LPFC_FDMI_SUPPORT       1       /* FDMI supported? */
 807         uint32_t cfg_enable_SmartSAN;
 808         uint32_t cfg_enable_mds_diags;
 809         uint32_t cfg_enable_fc4_type;
 810         uint32_t cfg_xri_split;
 811 #define LPFC_ENABLE_FCP  1
 812 #define LPFC_ENABLE_NVME 2
 813 #define LPFC_ENABLE_BOTH 3
 814         uint32_t io_channel_irqs;       /* number of irqs for io channels */
 815         lpfc_vpd_t vpd;         /* vital product data */
 816
 817         struct pci_dev *pcidev;
 818         struct list_head      work_list;
 819         uint32_t              work_ha;      /* Host Attention Bits for WT */
 820         uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 821         uint32_t              work_hs;      /* HS stored in case of ERRAT */
 822         uint32_t              work_status[2]; /* Extra status from SLIM */
 823
 824         wait_queue_head_t    work_waitq;
 825         struct task_struct   *worker_thread;
 826         unsigned long data_flags;
 827
 828         uint32_t hbq_in_use;            /* HBQs in use flag */
 829         uint32_t hbq_count;             /* Count of configured HBQs */
 830         struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 831
 832         atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
 833         atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
 834
 835         phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
 836         phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
 837         phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
 838         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 839                                            PCI BAR0 */
 840         void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 841                                             PCI BAR2 */
 842
 843         void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
 844                                             PCI BAR0 with dual-ULP support */
 845         void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
 846                                             PCI BAR2 with dual-ULP support */
 847         void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
 848                                             PCI BAR4 with dual-ULP support */
 849 #define PCI_64BIT_BAR0  0
 850 #define PCI_64BIT_BAR2  2
 851 #define PCI_64BIT_BAR4  4
 852         void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 853         void __iomem *HAregaddr;        /* virtual address for host attn reg */
 854         void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 855         void __iomem *HSregaddr;        /* virtual address for host status
 856                                            reg */
 857         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 858
 859         struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 860         struct lpfc_pgp   *port_gp;
 861         uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 862         uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 863
 864         int brd_no;                     /* FC board number */
 865         char SerialNumber[32];          /* adapter Serial Number */
 866         char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 867         char ModelDesc[256];            /* Model Description */
 868         char ModelName[80];             /* Model Name */
 869         char ProgramType[256];          /* Program Type */
 870         char Port[20];                  /* Port No */
 871         uint8_t vpd_flag;               /* VPD data flag */
 872
 873 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 874 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 875 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 876 #define VPD_PORT            0x8         /* valid vpd port data */
 877 #define VPD_MASK            0xf         /* mask for any vpd data */
 878
 879         uint8_t soft_wwn_enable;
 880
 881         struct timer_list fcp_poll_timer;
 882         struct timer_list eratt_poll;
 883         uint32_t eratt_poll_interval;
 884
 885         /*
 886          * stat  counters
 887          */
 888         uint64_t fc4ScsiInputRequests;
 889         uint64_t fc4ScsiOutputRequests;
 890         uint64_t fc4ScsiControlRequests;
 891         uint64_t fc4ScsiIoCmpls;
 892         uint64_t fc4NvmeInputRequests;
 893         uint64_t fc4NvmeOutputRequests;
 894         uint64_t fc4NvmeControlRequests;
 895         uint64_t fc4NvmeIoCmpls;
 896         uint64_t fc4NvmeLsRequests;
 897         uint64_t fc4NvmeLsCmpls;
 898
 899         uint64_t bg_guard_err_cnt;
 900         uint64_t bg_apptag_err_cnt;
 901         uint64_t bg_reftag_err_cnt;
 902
 903         /* fastpath list. */
 904         spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
 905         spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
 906         struct list_head lpfc_scsi_buf_list_get;
 907         struct list_head lpfc_scsi_buf_list_put;
 908         uint32_t total_scsi_bufs;
 909         spinlock_t nvme_buf_list_get_lock;  /* NVME buf alloc list lock */
 910         spinlock_t nvme_buf_list_put_lock;  /* NVME buf free list lock */
 911         struct list_head lpfc_nvme_buf_list_get;
 912         struct list_head lpfc_nvme_buf_list_put;
 913         uint32_t total_nvme_bufs;
 914         struct list_head lpfc_iocb_list;
 915         uint32_t total_iocbq_bufs;
 916         struct list_head active_rrq_list;
 917         spinlock_t hbalock;
 918
 919         /* pci_mem_pools */
 920         struct pci_pool *lpfc_sg_dma_buf_pool;
 921         struct pci_pool *lpfc_mbuf_pool;
 922         struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
 923         struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
 924         struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 925         struct pci_pool *txrdy_payload_pool;
 926         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 927
 928         mempool_t *mbox_mem_pool;
 929         mempool_t *nlp_mem_pool;
 930         mempool_t *rrq_pool;
 931         mempool_t *active_rrq_pool;
 932
 933         struct fc_host_statistics link_stats;
 934         enum intr_type_t intr_type;
 935         uint32_t intr_mode;
 936 #define LPFC_INTR_ERROR 0xFFFFFFFF
 937         struct list_head port_list;
 938         struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
 939         uint16_t max_vpi;               /* Maximum virtual nports */
 940 #define LPFC_MAX_VPI 0xFFFF             /* Max number of VPI supported */
 941         uint16_t max_vports;            /*
 942                                          * For IOV HBAs max_vpi can change
 943                                          * after a reset. max_vports is max
 944                                          * number of vports present. This can
 945                                          * be greater than max_vpi.
 946                                          */
 947         uint16_t vpi_base;
 948         uint16_t vfi_base;
 949         unsigned long *vpi_bmask;       /* vpi allocation table */
 950         uint16_t *vpi_ids;
 951         uint16_t vpi_count;
 952         struct list_head lpfc_vpi_blk_list;
 953
 954         /* Data structure used by fabric iocb scheduler */
 955         struct list_head fabric_iocb_list;
 956         atomic_t fabric_iocb_count;
 957         struct timer_list fabric_block_timer;
 958         unsigned long bit_flags;
 959 #define FABRIC_COMANDS_BLOCKED  0
 960         atomic_t num_rsrc_err;
 961         atomic_t num_cmd_success;
 962         unsigned long last_rsrc_error_time;
 963         unsigned long last_ramp_down_time;
 964 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 965         struct dentry *hba_debugfs_root;
 966         atomic_t debugfs_vport_count;
 967         struct dentry *debug_hbqinfo;
 968         struct dentry *debug_dumpHostSlim;
 969         struct dentry *debug_dumpHBASlim;
 970         struct dentry *debug_dumpData;   /* BlockGuard BPL */
 971         struct dentry *debug_dumpDif;    /* BlockGuard BPL */
 972         struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
 973         struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
 974         struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
 975         struct dentry *debug_writeGuard; /* inject write guard_tag errors */
 976         struct dentry *debug_writeApp;   /* inject write app_tag errors */
 977         struct dentry *debug_writeRef;   /* inject write ref_tag errors */
 978         struct dentry *debug_readGuard;  /* inject read guard_tag errors */
 979         struct dentry *debug_readApp;    /* inject read app_tag errors */
 980         struct dentry *debug_readRef;    /* inject read ref_tag errors */
 981
 982         /* T10 DIF error injection */
 983         uint32_t lpfc_injerr_wgrd_cnt;
 984         uint32_t lpfc_injerr_wapp_cnt;
 985         uint32_t lpfc_injerr_wref_cnt;
 986         uint32_t lpfc_injerr_rgrd_cnt;
 987         uint32_t lpfc_injerr_rapp_cnt;
 988         uint32_t lpfc_injerr_rref_cnt;
 989         uint32_t lpfc_injerr_nportid;
 990         struct lpfc_name lpfc_injerr_wwpn;
 991         sector_t lpfc_injerr_lba;
 992 #define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
 993
 994         struct dentry *debug_slow_ring_trc;
 995         struct lpfc_debugfs_trc *slow_ring_trc;
 996         atomic_t slow_ring_trc_cnt;
 997         /* iDiag debugfs sub-directory */
 998         struct dentry *idiag_root;
 999         struct dentry *idiag_pci_cfg;
1000         struct dentry *idiag_bar_acc;
1001         struct dentry *idiag_que_info;
1002         struct dentry *idiag_que_acc;
1003         struct dentry *idiag_drb_acc;
1004         struct dentry *idiag_ctl_acc;
1005         struct dentry *idiag_mbx_acc;
1006         struct dentry *idiag_ext_acc;
1007         uint8_t lpfc_idiag_last_eq;
1008 #endif
1009
1010         /* Used for deferred freeing of ELS data buffers */
1011         struct list_head elsbuf;
1012         int elsbuf_cnt;
1013         int elsbuf_prev_cnt;
1014
1015         uint8_t temp_sensor_support;
1016         /* Fields used for heart beat. */
1017         unsigned long last_completion_time;
1018         unsigned long skipped_hb;
1019         struct timer_list hb_tmofunc;
1020         uint8_t hb_outstanding;
1021         struct timer_list rrq_tmr;
1022         enum hba_temp_state over_temp_state;
1023         /* ndlp reference management */
1024         spinlock_t ndlp_lock;
1025         /*
1026          * Following bit will be set for all buffer tags which are not
1027          * associated with any HBQ.
1028          */
1029 #define QUE_BUFTAG_BIT  (1<<31)
1030         uint32_t buffer_tag_count;
1031         int wait_4_mlo_maint_flg;
1032         wait_queue_head_t wait_4_mlo_m_q;
1033         /* data structure used for latency data collection */
1034 #define LPFC_NO_BUCKET     0
1035 #define LPFC_LINEAR_BUCKET 1
1036 #define LPFC_POWER2_BUCKET 2
1037         uint8_t  bucket_type;
1038         uint32_t bucket_base;
1039         uint32_t bucket_step;
1040
1041 /* Maximum number of events that can be outstanding at any time*/
1042 #define LPFC_MAX_EVT_COUNT 512
1043         atomic_t fast_event_count;
1044         uint32_t fcoe_eventtag;
1045         uint32_t fcoe_eventtag_at_fcf_scan;
1046         uint32_t fcoe_cvl_eventtag;
1047         uint32_t fcoe_cvl_eventtag_attn;
1048         struct lpfc_fcf fcf;
1049         uint8_t fc_map[3];
1050         uint8_t valid_vlan;
1051         uint16_t vlan_id;
1052         struct list_head fcf_conn_rec_list;
1053
1054         spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1055         struct list_head ct_ev_waiters;
1056         struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1057         uint32_t ctx_idx;
1058
1059         uint8_t menlo_flag;     /* menlo generic flags */
1060 #define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
1061         uint32_t iocb_cnt;
1062         uint32_t iocb_max;
1063         atomic_t sdev_cnt;
1064         uint8_t fips_spec_rev;
1065         uint8_t fips_level;
1066         spinlock_t devicelock;  /* lock for luns list */
1067         mempool_t *device_data_mem_pool;
1068         struct list_head luns;
1069 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE     0x0080
1070 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE      0x0040
1071 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE         0x0020
1072 #define LPFC_TRANSGRESSION_LOW_VOLTAGE          0x0010
1073 #define LPFC_TRANSGRESSION_HIGH_TXBIAS          0x0008
1074 #define LPFC_TRANSGRESSION_LOW_TXBIAS           0x0004
1075 #define LPFC_TRANSGRESSION_HIGH_TXPOWER         0x0002
1076 #define LPFC_TRANSGRESSION_LOW_TXPOWER          0x0001
1077 #define LPFC_TRANSGRESSION_HIGH_RXPOWER         0x8000
1078 #define LPFC_TRANSGRESSION_LOW_RXPOWER          0x4000
1079         uint16_t sfp_alarm;
1080         uint16_t sfp_warning;
1081 };
1082
1083 static inline struct Scsi_Host *
1084 lpfc_shost_from_vport(struct lpfc_vport *vport)
1085 {
1086         return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1087 }
1088
1089 static inline void
1090 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1091 {
1092         if (phba->cfg_topology == FLAGS_LOCAL_LB)
1093                 phba->link_flag |= LS_LOOPBACK_MODE;
1094         else
1095                 phba->link_flag &= ~LS_LOOPBACK_MODE;
1096 }
1097
1098 static inline int
1099 lpfc_is_link_up(struct lpfc_hba *phba)
1100 {
1101         return  phba->link_state == LPFC_LINK_UP ||
1102                 phba->link_state == LPFC_CLEAR_LA ||
1103                 phba->link_state == LPFC_HBA_READY;
1104 }
1105
1106 static inline void
1107 lpfc_worker_wake_up(struct lpfc_hba *phba)
1108 {
1109         /* Set the lpfc data pending flag */
1110         set_bit(LPFC_DATA_READY, &phba->data_flags);
1111
1112         /* Wake up worker thread */
1113         wake_up(&phba->work_waitq);
1114         return;
1115 }
1116
1117 static inline int
1118 lpfc_readl(void __iomem *addr, uint32_t *data)
1119 {
1120         uint32_t temp;
1121         temp = readl(addr);
1122         if (temp == 0xffffffff)
1123                 return -EIO;
1124         *data = temp;
1125         return 0;
1126 }
1127
1128 static inline int
1129 lpfc_sli_read_hs(struct lpfc_hba *phba)
1130 {
1131         /*
1132          * There was a link/board error. Read the status register to retrieve
1133          * the error event and process it.
1134          */
1135         phba->sli.slistat.err_attn_event++;
1136
1137         /* Save status info and check for unplug error */
1138         if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1139                 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1140                 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1141                 return -EIO;
1142         }
1143
1144         /* Clear chip Host Attention error bit */
1145         writel(HA_ERATT, phba->HAregaddr);
1146         readl(phba->HAregaddr); /* flush */
1147         phba->pport->stopped = 1;
1148
1149         return 0;
1150 }
1151
1152 static inline struct lpfc_sli_ring *
1153 lpfc_phba_elsring(struct lpfc_hba *phba)
1154 {
1155         if (phba->sli_rev == LPFC_SLI_REV4)
1156                 return phba->sli4_hba.els_wq->pring;
1157         return &phba->sli.sli3_ring[LPFC_ELS_RING];
1158 }