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) 2004-2014 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
  24 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  25 #define CONFIG_SCSI_LPFC_DEBUG_FS
  26 #endif
  27
  28 struct lpfc_sli2_slim;
  29
  30 #define ELX_MODEL_NAME_SIZE     80
  31
  32 #define LPFC_PCI_DEV_LP         0x1
  33 #define LPFC_PCI_DEV_OC         0x2
  34
  35 #define LPFC_SLI_REV2           2
  36 #define LPFC_SLI_REV3           3
  37 #define LPFC_SLI_REV4           4
  38
  39 #define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  40 #define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  41                                            requests */
  42 #define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  43                                            the NameServer  before giving up. */
  44 #define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  45 #define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  46 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  47                 cmnd for menlo needs nearly twice as for firmware
  48                 downloads using bsg */
  49
  50 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
  51 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
  52 #define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
  53 #define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  54 #define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
  55 #define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
  56
  57 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  58 #define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  59 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  60 #define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  61 #define LPFC_TGTQ_INTERVAL      40000   /* Min amount of time between tgt
  62                                            queue depth change in millisecs */
  63 #define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  64 #define LPFC_MIN_TGT_QDEPTH     10
  65 #define LPFC_MAX_TGT_QDEPTH     0xFFFF
  66
  67 #define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  68                                            collection. */
  69 /*
  70  * Following time intervals are used of adjusting SCSI device
  71  * queue depths when there are driver resource error or Firmware
  72  * resource error.
  73  */
  74 /* 1 Second */
  75 #define QUEUE_RAMP_DOWN_INTERVAL        (msecs_to_jiffies(1000 * 1))
  76
  77 /* Number of exchanges reserved for discovery to complete */
  78 #define LPFC_DISC_IOCB_BUFF_COUNT 20
  79
  80 #define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  81 #define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  82
  83 #define LPFC_LOOK_AHEAD_OFF     0       /* Look ahead logic is turned off */
  84
  85 /* Error Attention event polling interval */
  86 #define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */
  87
  88 /* Define macros for 64 bit support */
  89 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  90 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  91 #define getPaddr(high, low)  ((dma_addr_t)( \
  92                              (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  93 /* Provide maximum configuration definitions. */
  94 #define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
  95 #define FC_MAX_ADPTMSG          64
  96
  97 #define MAX_HBAEVT      32
  98
  99 /* Number of MSI-X vectors the driver uses */
 100 #define LPFC_MSIX_VECTORS       2
 101
 102 /* lpfc wait event data ready flag */
 103 #define LPFC_DATA_READY         (1<<0)
 104
 105 /* queue dump line buffer size */
 106 #define LPFC_LBUF_SZ            128
 107
 108 /* mailbox system shutdown options */
 109 #define LPFC_MBX_NO_WAIT        0
 110 #define LPFC_MBX_WAIT           1
 111
 112 enum lpfc_polling_flags {
 113         ENABLE_FCP_RING_POLLING = 0x1,
 114         DISABLE_FCP_RING_INT    = 0x2
 115 };
 116
 117 /* Provide DMA memory definitions the driver uses per port instance. */
 118 struct lpfc_dmabuf {
 119         struct list_head list;
 120         void *virt;             /* virtual address ptr */
 121         dma_addr_t phys;        /* mapped address */
 122         uint32_t   buffer_tag;  /* used for tagged queue ring */
 123 };
 124
 125 struct lpfc_dma_pool {
 126         struct lpfc_dmabuf   *elements;
 127         uint32_t    max_count;
 128         uint32_t    current_count;
 129 };
 130
 131 struct hbq_dmabuf {
 132         struct lpfc_dmabuf hbuf;
 133         struct lpfc_dmabuf dbuf;
 134         uint32_t size;
 135         uint32_t tag;
 136         struct lpfc_cq_event cq_event;
 137         unsigned long time_stamp;
 138 };
 139
 140 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 141 #define MEM_PRI         0x100
 142
 143
 144 /****************************************************************************/
 145 /*      Device VPD save area                                                */
 146 /****************************************************************************/
 147 typedef struct lpfc_vpd {
 148         uint32_t status;        /* vpd status value */
 149         uint32_t length;        /* number of bytes actually returned */
 150         struct {
 151                 uint32_t rsvd1; /* Revision numbers */
 152                 uint32_t biuRev;
 153                 uint32_t smRev;
 154                 uint32_t smFwRev;
 155                 uint32_t endecRev;
 156                 uint16_t rBit;
 157                 uint8_t fcphHigh;
 158                 uint8_t fcphLow;
 159                 uint8_t feaLevelHigh;
 160                 uint8_t feaLevelLow;
 161                 uint32_t postKernRev;
 162                 uint32_t opFwRev;
 163                 uint8_t opFwName[16];
 164                 uint32_t sli1FwRev;
 165                 uint8_t sli1FwName[16];
 166                 uint32_t sli2FwRev;
 167                 uint8_t sli2FwName[16];
 168         } rev;
 169         struct {
 170 #ifdef __BIG_ENDIAN_BITFIELD
 171                 uint32_t rsvd3  :19;  /* Reserved                             */
 172                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 173                 uint32_t rsvd2  : 3;  /* Reserved                             */
 174                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 175                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 176                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 177                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 178                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 179                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 180                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 181                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 182                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 183 #else   /*  __LITTLE_ENDIAN */
 184                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 185                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 186                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 187                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 188                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 189                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 190                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 191                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 192                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 193                 uint32_t rsvd2  : 3;  /* Reserved                             */
 194                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 195                 uint32_t rsvd3  :19;  /* Reserved                             */
 196 #endif
 197         } sli3Feat;
 198 } lpfc_vpd_t;
 199
 200 struct lpfc_scsi_buf;
 201
 202
 203 /*
 204  * lpfc stat counters
 205  */
 206 struct lpfc_stats {
 207         /* Statistics for ELS commands */
 208         uint32_t elsLogiCol;
 209         uint32_t elsRetryExceeded;
 210         uint32_t elsXmitRetry;
 211         uint32_t elsDelayRetry;
 212         uint32_t elsRcvDrop;
 213         uint32_t elsRcvFrame;
 214         uint32_t elsRcvRSCN;
 215         uint32_t elsRcvRNID;
 216         uint32_t elsRcvFARP;
 217         uint32_t elsRcvFARPR;
 218         uint32_t elsRcvFLOGI;
 219         uint32_t elsRcvPLOGI;
 220         uint32_t elsRcvADISC;
 221         uint32_t elsRcvPDISC;
 222         uint32_t elsRcvFAN;
 223         uint32_t elsRcvLOGO;
 224         uint32_t elsRcvPRLO;
 225         uint32_t elsRcvPRLI;
 226         uint32_t elsRcvLIRR;
 227         uint32_t elsRcvRLS;
 228         uint32_t elsRcvRPS;
 229         uint32_t elsRcvRPL;
 230         uint32_t elsRcvRRQ;
 231         uint32_t elsRcvRTV;
 232         uint32_t elsRcvECHO;
 233         uint32_t elsXmitFLOGI;
 234         uint32_t elsXmitFDISC;
 235         uint32_t elsXmitPLOGI;
 236         uint32_t elsXmitPRLI;
 237         uint32_t elsXmitADISC;
 238         uint32_t elsXmitLOGO;
 239         uint32_t elsXmitSCR;
 240         uint32_t elsXmitRNID;
 241         uint32_t elsXmitFARP;
 242         uint32_t elsXmitFARPR;
 243         uint32_t elsXmitACC;
 244         uint32_t elsXmitLSRJT;
 245
 246         uint32_t frameRcvBcast;
 247         uint32_t frameRcvMulti;
 248         uint32_t strayXmitCmpl;
 249         uint32_t frameXmitDelay;
 250         uint32_t xriCmdCmpl;
 251         uint32_t xriStatErr;
 252         uint32_t LinkUp;
 253         uint32_t LinkDown;
 254         uint32_t LinkMultiEvent;
 255         uint32_t NoRcvBuf;
 256         uint32_t fcpCmd;
 257         uint32_t fcpCmpl;
 258         uint32_t fcpRspErr;
 259         uint32_t fcpRemoteStop;
 260         uint32_t fcpPortRjt;
 261         uint32_t fcpPortBusy;
 262         uint32_t fcpError;
 263         uint32_t fcpLocalErr;
 264 };
 265
 266 struct lpfc_hba;
 267
 268
 269 enum discovery_state {
 270         LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 271         LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 272         LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 273         LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 274         LPFC_FDISC             =  8,    /* FDISC sent for vport */
 275         LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 276                                          * configured */
 277         LPFC_NS_REG            =  10,   /* Register with NameServer */
 278         LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 279         LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 280                                          * device authentication / discovery */
 281         LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 282         LPFC_VPORT_READY       =  32,
 283 };
 284
 285 enum hba_state {
 286         LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 287         LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 288         LPFC_INIT_START      =   2,   /* Initial state after board reset */
 289         LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 290         LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 291         LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 292         LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 293                                        * CLEAR_LA */
 294         LPFC_HBA_READY       =  32,
 295         LPFC_HBA_ERROR       =  -1
 296 };
 297
 298 struct lpfc_vport {
 299         struct lpfc_hba *phba;
 300         struct list_head listentry;
 301         uint8_t port_type;
 302 #define LPFC_PHYSICAL_PORT 1
 303 #define LPFC_NPIV_PORT  2
 304 #define LPFC_FABRIC_PORT 3
 305         enum discovery_state port_state;
 306
 307         uint16_t vpi;
 308         uint16_t vfi;
 309         uint8_t vpi_state;
 310 #define LPFC_VPI_REGISTERED     0x1
 311
 312         uint32_t fc_flag;       /* FC flags */
 313 /* Several of these flags are HBA centric and should be moved to
 314  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 315  */
 316 #define FC_PT2PT                0x1      /* pt2pt with no fabric */
 317 #define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 318 #define FC_DISC_TMO             0x4      /* Discovery timer running */
 319 #define FC_PUBLIC_LOOP          0x8      /* Public loop */
 320 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 321 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 322 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 323 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 324 #define FC_FABRIC               0x100    /* We are fabric attached */
 325 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 326 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 327 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 328 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 329 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 330 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 331 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 332 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 333 #define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 334 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 335 #define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 336 #define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 337 #define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 338 #define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 339
 340         uint32_t ct_flags;
 341 #define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 342 #define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 343 #define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 344 #define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 345 #define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 346
 347         struct list_head fc_nodes;
 348
 349         /* Keep counters for the number of entries in each list. */
 350         uint16_t fc_plogi_cnt;
 351         uint16_t fc_adisc_cnt;
 352         uint16_t fc_reglogin_cnt;
 353         uint16_t fc_prli_cnt;
 354         uint16_t fc_unmap_cnt;
 355         uint16_t fc_map_cnt;
 356         uint16_t fc_npr_cnt;
 357         uint16_t fc_unused_cnt;
 358         struct serv_parm fc_sparam;     /* buffer for our service parameters */
 359
 360         uint32_t fc_myDID;      /* fibre channel S_ID */
 361         uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 362         struct lpfc_name fabric_portname;
 363         struct lpfc_name fabric_nodename;
 364
 365         int32_t stopped;   /* HBA has not been restarted since last ERATT */
 366         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 367
 368         uint32_t num_disc_nodes;        /*in addition to hba_state */
 369
 370         uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 371         uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 372         uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 373         struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 374         struct lpfc_name fc_nodename;   /* fc nodename */
 375         struct lpfc_name fc_portname;   /* fc portname */
 376
 377         struct lpfc_work_evt disc_timeout_evt;
 378
 379         struct timer_list fc_disctmo;   /* Discovery rescue timer */
 380         uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 381         uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 382
 383         spinlock_t work_port_lock;
 384         uint32_t work_port_events; /* Timeout to be handled  */
 385 #define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 386 #define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 387 #define WORKER_FDMI_TMO                0x4      /* vport: FDMI timeout */
 388 #define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 389
 390 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 391 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 392 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 393 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 394 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 395 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 396
 397         struct timer_list fc_fdmitmo;
 398         struct timer_list els_tmofunc;
 399         struct timer_list delayed_disc_tmo;
 400
 401         int unreg_vpi_cmpl;
 402
 403         uint8_t load_flag;
 404 #define FC_LOADING              0x1     /* HBA in process of loading drvr */
 405 #define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 406         /* Vport Config Parameters */
 407         uint32_t cfg_scan_down;
 408         uint32_t cfg_lun_queue_depth;
 409         uint32_t cfg_nodev_tmo;
 410         uint32_t cfg_devloss_tmo;
 411         uint32_t cfg_restrict_login;
 412         uint32_t cfg_peer_port_login;
 413         uint32_t cfg_fcp_class;
 414         uint32_t cfg_use_adisc;
 415         uint32_t cfg_fdmi_on;
 416         uint32_t cfg_discovery_threads;
 417         uint32_t cfg_log_verbose;
 418         uint32_t cfg_max_luns;
 419         uint32_t cfg_enable_da_id;
 420         uint32_t cfg_max_scsicmpl_time;
 421         uint32_t cfg_tgt_queue_depth;
 422         uint32_t cfg_first_burst_size;
 423
 424         uint32_t dev_loss_tmo_changed;
 425
 426         struct fc_vport *fc_vport;
 427
 428 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 429         struct dentry *debug_disc_trc;
 430         struct dentry *debug_nodelist;
 431         struct dentry *vport_debugfs_root;
 432         struct lpfc_debugfs_trc *disc_trc;
 433         atomic_t disc_trc_cnt;
 434 #endif
 435         uint8_t stat_data_enabled;
 436         uint8_t stat_data_blocked;
 437         struct list_head rcv_buffer_list;
 438         unsigned long rcv_buffer_time_stamp;
 439         uint32_t vport_flag;
 440 #define STATIC_VPORT    1
 441 };
 442
 443 struct hbq_s {
 444         uint16_t entry_count;     /* Current number of HBQ slots */
 445         uint16_t buffer_count;    /* Current number of buffers posted */
 446         uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 447         uint32_t hbqPutIdx;       /* HBQ slot to use */
 448         uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 449         void    *hbq_virt;        /* Virtual ptr to this hbq */
 450         struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 451                                   /* Callback for HBQ buffer allocation */
 452         struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 453                                   /* Callback for HBQ buffer free */
 454         void               (*hbq_free_buffer) (struct lpfc_hba *,
 455                                                struct hbq_dmabuf *);
 456 };
 457
 458 #define LPFC_MAX_HBQS  4
 459 /* this matches the position in the lpfc_hbq_defs array */
 460 #define LPFC_ELS_HBQ    0
 461 #define LPFC_EXTRA_HBQ  1
 462
 463 enum hba_temp_state {
 464         HBA_NORMAL_TEMP,
 465         HBA_OVER_TEMP
 466 };
 467
 468 enum intr_type_t {
 469         NONE = 0,
 470         INTx,
 471         MSI,
 472         MSIX,
 473 };
 474
 475 #define LPFC_CT_CTX_MAX         64
 476 struct unsol_rcv_ct_ctx {
 477         uint32_t ctxt_id;
 478         uint32_t SID;
 479         uint32_t valid;
 480 #define UNSOL_INVALID           0
 481 #define UNSOL_VALID             1
 482         uint16_t oxid;
 483         uint16_t rxid;
 484 };
 485
 486 #define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 487 #define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 488 #define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 489 #define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 490 #define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 491 #define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 492 #define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 493 #define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_16G
 494 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \
 495                                      (1 << LPFC_USER_LINK_SPEED_10G) | \
 496                                      (1 << LPFC_USER_LINK_SPEED_8G) | \
 497                                      (1 << LPFC_USER_LINK_SPEED_4G) | \
 498                                      (1 << LPFC_USER_LINK_SPEED_2G) | \
 499                                      (1 << LPFC_USER_LINK_SPEED_1G) | \
 500                                      (1 << LPFC_USER_LINK_SPEED_AUTO))
 501 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16"
 502
 503 enum nemb_type {
 504         nemb_mse = 1,
 505         nemb_hbd
 506 };
 507
 508 enum mbox_type {
 509         mbox_rd = 1,
 510         mbox_wr
 511 };
 512
 513 enum dma_type {
 514         dma_mbox = 1,
 515         dma_ebuf
 516 };
 517
 518 enum sta_type {
 519         sta_pre_addr = 1,
 520         sta_pos_addr
 521 };
 522
 523 struct lpfc_mbox_ext_buf_ctx {
 524         uint32_t state;
 525 #define LPFC_BSG_MBOX_IDLE              0
 526 #define LPFC_BSG_MBOX_HOST              1
 527 #define LPFC_BSG_MBOX_PORT              2
 528 #define LPFC_BSG_MBOX_DONE              3
 529 #define LPFC_BSG_MBOX_ABTS              4
 530         enum nemb_type nembType;
 531         enum mbox_type mboxType;
 532         uint32_t numBuf;
 533         uint32_t mbxTag;
 534         uint32_t seqNum;
 535         struct lpfc_dmabuf *mbx_dmabuf;
 536         struct list_head ext_dmabuf_list;
 537 };
 538
 539 struct lpfc_hba {
 540         /* SCSI interface function jump table entries */
 541         int (*lpfc_new_scsi_buf)
 542                 (struct lpfc_vport *, int);
 543         struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
 544                 (struct lpfc_hba *, struct lpfc_nodelist *);
 545         int (*lpfc_scsi_prep_dma_buf)
 546                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 547         void (*lpfc_scsi_unprep_dma_buf)
 548                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 549         void (*lpfc_release_scsi_buf)
 550                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 551         void (*lpfc_rampdown_queue_depth)
 552                 (struct lpfc_hba *);
 553         void (*lpfc_scsi_prep_cmnd)
 554                 (struct lpfc_vport *, struct lpfc_scsi_buf *,
 555                  struct lpfc_nodelist *);
 556
 557         /* IOCB interface function jump table entries */
 558         int (*__lpfc_sli_issue_iocb)
 559                 (struct lpfc_hba *, uint32_t,
 560                  struct lpfc_iocbq *, uint32_t);
 561         void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 562                          struct lpfc_iocbq *);
 563         int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 564         IOCB_t * (*lpfc_get_iocb_from_iocbq)
 565                 (struct lpfc_iocbq *);
 566         void (*lpfc_scsi_cmd_iocb_cmpl)
 567                 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 568
 569         /* MBOX interface function jump table entries */
 570         int (*lpfc_sli_issue_mbox)
 571                 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 572
 573         /* Slow-path IOCB process function jump table entries */
 574         void (*lpfc_sli_handle_slow_ring_event)
 575                 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 576                  uint32_t mask);
 577
 578         /* INIT device interface function jump table entries */
 579         int (*lpfc_sli_hbq_to_firmware)
 580                 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 581         int (*lpfc_sli_brdrestart)
 582                 (struct lpfc_hba *);
 583         int (*lpfc_sli_brdready)
 584                 (struct lpfc_hba *, uint32_t);
 585         void (*lpfc_handle_eratt)
 586                 (struct lpfc_hba *);
 587         void (*lpfc_stop_port)
 588                 (struct lpfc_hba *);
 589         int (*lpfc_hba_init_link)
 590                 (struct lpfc_hba *, uint32_t);
 591         int (*lpfc_hba_down_link)
 592                 (struct lpfc_hba *, uint32_t);
 593         int (*lpfc_selective_reset)
 594                 (struct lpfc_hba *);
 595
 596         int (*lpfc_bg_scsi_prep_dma_buf)
 597                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 598         /* Add new entries here */
 599
 600         /* SLI4 specific HBA data structure */
 601         struct lpfc_sli4_hba sli4_hba;
 602
 603         struct lpfc_sli sli;
 604         uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 605         uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 606         uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 607 #define LPFC_SLI3_HBQ_ENABLED           0x01
 608 #define LPFC_SLI3_NPIV_ENABLED          0x02
 609 #define LPFC_SLI3_VPORT_TEARDOWN        0x04
 610 #define LPFC_SLI3_CRP_ENABLED           0x08
 611 #define LPFC_SLI3_BG_ENABLED            0x20
 612 #define LPFC_SLI3_DSS_ENABLED           0x40
 613 #define LPFC_SLI4_PERFH_ENABLED         0x80
 614 #define LPFC_SLI4_PHWQ_ENABLED          0x100
 615         uint32_t iocb_cmd_size;
 616         uint32_t iocb_rsp_size;
 617
 618         enum hba_state link_state;
 619         uint32_t link_flag;     /* link state flags */
 620 #define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 621                                         /* This flag is set while issuing */
 622                                         /* INIT_LINK mailbox command */
 623 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 624 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 625
 626         uint32_t hba_flag;      /* hba generic flags */
 627 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 628 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 629 #define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 630 #define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 631 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 632 #define FCP_XRI_ABORT_EVENT     0x20
 633 #define ELS_XRI_ABORT_EVENT     0x40
 634 #define ASYNC_EVENT             0x80
 635 #define LINK_DISABLED           0x100 /* Link disabled by user */
 636 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 637 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 638 #define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 639 #define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 640 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 641 #define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 642 #define HBA_FCP_IOQ_FLUSH       0x8000 /* FCP I/O queues being flushed */
 643 #define HBA_FW_DUMP_OP          0x10000 /* Skips fn reset before FW dump */
 644         uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 645         struct lpfc_dmabuf slim2p;
 646
 647         MAILBOX_t *mbox;
 648         uint32_t *mbox_ext;
 649         struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 650         uint32_t ha_copy;
 651         struct _PCB *pcb;
 652         struct _IOCB *IOCBs;
 653
 654         struct lpfc_dmabuf hbqslimp;
 655
 656         uint16_t pci_cfg_value;
 657
 658         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 659
 660         uint32_t fc_eventTag;   /* event tag for link attention */
 661         uint32_t link_events;
 662
 663         /* These fields used to be binfo */
 664         uint32_t fc_pref_DID;   /* preferred D_ID */
 665         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 666         uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 667         uint32_t fc_edtov;      /* E_D_TOV timer value */
 668         uint32_t fc_arbtov;     /* ARB_TOV timer value */
 669         uint32_t fc_ratov;      /* R_A_TOV timer value */
 670         uint32_t fc_rttov;      /* R_T_TOV timer value */
 671         uint32_t fc_altov;      /* AL_TOV timer value */
 672         uint32_t fc_crtov;      /* C_R_TOV timer value */
 673         uint32_t fc_citov;      /* C_I_TOV timer value */
 674
 675         struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 676         uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 677
 678         uint32_t lmt;
 679
 680         uint32_t fc_topology;   /* link topology, from LINK INIT */
 681         uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
 682
 683         struct lpfc_stats fc_stat;
 684
 685         struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 686         uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 687
 688         uint8_t  wwnn[8];
 689         uint8_t  wwpn[8];
 690         uint32_t RandomData[7];
 691
 692         /* HBA Config Parameters */
 693         uint32_t cfg_ack0;
 694         uint32_t cfg_enable_npiv;
 695         uint32_t cfg_enable_rrq;
 696         uint32_t cfg_topology;
 697         uint32_t cfg_link_speed;
 698 #define LPFC_FCF_FOV 1          /* Fast fcf failover */
 699 #define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 700         uint32_t cfg_fcf_failover_policy;
 701         uint32_t cfg_fcp_io_sched;
 702         uint32_t cfg_fcp2_no_tgt_reset;
 703         uint32_t cfg_cr_delay;
 704         uint32_t cfg_cr_count;
 705         uint32_t cfg_multi_ring_support;
 706         uint32_t cfg_multi_ring_rctl;
 707         uint32_t cfg_multi_ring_type;
 708         uint32_t cfg_poll;
 709         uint32_t cfg_poll_tmo;
 710         uint32_t cfg_task_mgmt_tmo;
 711         uint32_t cfg_use_msi;
 712         uint32_t cfg_fcp_imax;
 713         uint32_t cfg_fcp_cpu_map;
 714         uint32_t cfg_fcp_io_channel;
 715         uint32_t cfg_total_seg_cnt;
 716         uint32_t cfg_sg_seg_cnt;
 717         uint32_t cfg_prot_sg_seg_cnt;
 718         uint32_t cfg_sg_dma_buf_size;
 719         uint64_t cfg_soft_wwnn;
 720         uint64_t cfg_soft_wwpn;
 721         uint32_t cfg_hba_queue_depth;
 722         uint32_t cfg_enable_hba_reset;
 723         uint32_t cfg_enable_hba_heartbeat;
 724         uint32_t cfg_fof;
 725         uint32_t cfg_EnableXLane;
 726         uint8_t cfg_oas_tgt_wwpn[8];
 727         uint8_t cfg_oas_vpt_wwpn[8];
 728         uint32_t cfg_oas_lun_state;
 729 #define OAS_LUN_ENABLE  1
 730 #define OAS_LUN_DISABLE 0
 731         uint32_t cfg_oas_lun_status;
 732 #define OAS_LUN_STATUS_EXISTS   0x01
 733         uint32_t cfg_oas_flags;
 734 #define OAS_FIND_ANY_VPORT      0x01
 735 #define OAS_FIND_ANY_TARGET     0x02
 736 #define OAS_LUN_VALID   0x04
 737         uint32_t cfg_XLanePriority;
 738         uint32_t cfg_enable_bg;
 739         uint32_t cfg_hostmem_hgp;
 740         uint32_t cfg_log_verbose;
 741         uint32_t cfg_aer_support;
 742         uint32_t cfg_sriov_nr_virtfn;
 743         uint32_t cfg_request_firmware_upgrade;
 744         uint32_t cfg_iocb_cnt;
 745         uint32_t cfg_suppress_link_up;
 746         uint32_t cfg_rrq_xri_bitmap_sz;
 747 #define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 748 #define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 749 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 750         uint32_t cfg_enable_dss;
 751         lpfc_vpd_t vpd;         /* vital product data */
 752
 753         struct pci_dev *pcidev;
 754         struct list_head      work_list;
 755         uint32_t              work_ha;      /* Host Attention Bits for WT */
 756         uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 757         uint32_t              work_hs;      /* HS stored in case of ERRAT */
 758         uint32_t              work_status[2]; /* Extra status from SLIM */
 759
 760         wait_queue_head_t    work_waitq;
 761         struct task_struct   *worker_thread;
 762         unsigned long data_flags;
 763
 764         uint32_t hbq_in_use;            /* HBQs in use flag */
 765         struct list_head rb_pend_list;  /* Received buffers to be processed */
 766         uint32_t hbq_count;             /* Count of configured HBQs */
 767         struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 768
 769         atomic_t fcp_qidx;              /* next work queue to post work to */
 770
 771         unsigned long pci_bar0_map;     /* Physical address for PCI BAR0 */
 772         unsigned long pci_bar1_map;     /* Physical address for PCI BAR1 */
 773         unsigned long pci_bar2_map;     /* Physical address for PCI BAR2 */
 774         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 775                                            PCI BAR0 */
 776         void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 777                                             PCI BAR2 */
 778
 779         void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
 780                                             PCI BAR0 with dual-ULP support */
 781         void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
 782                                             PCI BAR2 with dual-ULP support */
 783         void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
 784                                             PCI BAR4 with dual-ULP support */
 785 #define PCI_64BIT_BAR0  0
 786 #define PCI_64BIT_BAR2  2
 787 #define PCI_64BIT_BAR4  4
 788         void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 789         void __iomem *HAregaddr;        /* virtual address for host attn reg */
 790         void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 791         void __iomem *HSregaddr;        /* virtual address for host status
 792                                            reg */
 793         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 794
 795         struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 796         struct lpfc_pgp   *port_gp;
 797         uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 798         uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 799
 800         int brd_no;                     /* FC board number */
 801         char SerialNumber[32];          /* adapter Serial Number */
 802         char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 803         char ModelDesc[256];            /* Model Description */
 804         char ModelName[80];             /* Model Name */
 805         char ProgramType[256];          /* Program Type */
 806         char Port[20];                  /* Port No */
 807         uint8_t vpd_flag;               /* VPD data flag */
 808
 809 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 810 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 811 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 812 #define VPD_PORT            0x8         /* valid vpd port data */
 813 #define VPD_MASK            0xf         /* mask for any vpd data */
 814
 815         uint8_t soft_wwn_enable;
 816
 817         struct timer_list fcp_poll_timer;
 818         struct timer_list eratt_poll;
 819
 820         /*
 821          * stat  counters
 822          */
 823         uint64_t fc4InputRequests;
 824         uint64_t fc4OutputRequests;
 825         uint64_t fc4ControlRequests;
 826         uint64_t bg_guard_err_cnt;
 827         uint64_t bg_apptag_err_cnt;
 828         uint64_t bg_reftag_err_cnt;
 829
 830         /* fastpath list. */
 831         spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
 832         spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
 833         struct list_head lpfc_scsi_buf_list_get;
 834         struct list_head lpfc_scsi_buf_list_put;
 835         uint32_t total_scsi_bufs;
 836         struct list_head lpfc_iocb_list;
 837         uint32_t total_iocbq_bufs;
 838         struct list_head active_rrq_list;
 839         spinlock_t hbalock;
 840
 841         /* pci_mem_pools */
 842         struct pci_pool *lpfc_scsi_dma_buf_pool;
 843         struct pci_pool *lpfc_mbuf_pool;
 844         struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
 845         struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
 846         struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 847         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 848
 849         mempool_t *mbox_mem_pool;
 850         mempool_t *nlp_mem_pool;
 851         mempool_t *rrq_pool;
 852         mempool_t *active_rrq_pool;
 853
 854         struct fc_host_statistics link_stats;
 855         enum intr_type_t intr_type;
 856         uint32_t intr_mode;
 857 #define LPFC_INTR_ERROR 0xFFFFFFFF
 858         struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
 859
 860         struct list_head port_list;
 861         struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
 862         uint16_t max_vpi;               /* Maximum virtual nports */
 863 #define LPFC_MAX_VPI 0xFFFF             /* Max number of VPI supported */
 864         uint16_t max_vports;            /*
 865                                          * For IOV HBAs max_vpi can change
 866                                          * after a reset. max_vports is max
 867                                          * number of vports present. This can
 868                                          * be greater than max_vpi.
 869                                          */
 870         uint16_t vpi_base;
 871         uint16_t vfi_base;
 872         unsigned long *vpi_bmask;       /* vpi allocation table */
 873         uint16_t *vpi_ids;
 874         uint16_t vpi_count;
 875         struct list_head lpfc_vpi_blk_list;
 876
 877         /* Data structure used by fabric iocb scheduler */
 878         struct list_head fabric_iocb_list;
 879         atomic_t fabric_iocb_count;
 880         struct timer_list fabric_block_timer;
 881         unsigned long bit_flags;
 882 #define FABRIC_COMANDS_BLOCKED  0
 883         atomic_t num_rsrc_err;
 884         atomic_t num_cmd_success;
 885         unsigned long last_rsrc_error_time;
 886         unsigned long last_ramp_down_time;
 887 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 888         struct dentry *hba_debugfs_root;
 889         atomic_t debugfs_vport_count;
 890         struct dentry *debug_hbqinfo;
 891         struct dentry *debug_dumpHostSlim;
 892         struct dentry *debug_dumpHBASlim;
 893         struct dentry *debug_dumpData;   /* BlockGuard BPL */
 894         struct dentry *debug_dumpDif;    /* BlockGuard BPL */
 895         struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
 896         struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
 897         struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
 898         struct dentry *debug_writeGuard; /* inject write guard_tag errors */
 899         struct dentry *debug_writeApp;   /* inject write app_tag errors */
 900         struct dentry *debug_writeRef;   /* inject write ref_tag errors */
 901         struct dentry *debug_readGuard;  /* inject read guard_tag errors */
 902         struct dentry *debug_readApp;    /* inject read app_tag errors */
 903         struct dentry *debug_readRef;    /* inject read ref_tag errors */
 904
 905         /* T10 DIF error injection */
 906         uint32_t lpfc_injerr_wgrd_cnt;
 907         uint32_t lpfc_injerr_wapp_cnt;
 908         uint32_t lpfc_injerr_wref_cnt;
 909         uint32_t lpfc_injerr_rgrd_cnt;
 910         uint32_t lpfc_injerr_rapp_cnt;
 911         uint32_t lpfc_injerr_rref_cnt;
 912         uint32_t lpfc_injerr_nportid;
 913         struct lpfc_name lpfc_injerr_wwpn;
 914         sector_t lpfc_injerr_lba;
 915 #define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
 916
 917         struct dentry *debug_slow_ring_trc;
 918         struct lpfc_debugfs_trc *slow_ring_trc;
 919         atomic_t slow_ring_trc_cnt;
 920         /* iDiag debugfs sub-directory */
 921         struct dentry *idiag_root;
 922         struct dentry *idiag_pci_cfg;
 923         struct dentry *idiag_bar_acc;
 924         struct dentry *idiag_que_info;
 925         struct dentry *idiag_que_acc;
 926         struct dentry *idiag_drb_acc;
 927         struct dentry *idiag_ctl_acc;
 928         struct dentry *idiag_mbx_acc;
 929         struct dentry *idiag_ext_acc;
 930 #endif
 931
 932         /* Used for deferred freeing of ELS data buffers */
 933         struct list_head elsbuf;
 934         int elsbuf_cnt;
 935         int elsbuf_prev_cnt;
 936
 937         uint8_t temp_sensor_support;
 938         /* Fields used for heart beat. */
 939         unsigned long last_completion_time;
 940         unsigned long skipped_hb;
 941         struct timer_list hb_tmofunc;
 942         uint8_t hb_outstanding;
 943         struct timer_list rrq_tmr;
 944         enum hba_temp_state over_temp_state;
 945         /* ndlp reference management */
 946         spinlock_t ndlp_lock;
 947         /*
 948          * Following bit will be set for all buffer tags which are not
 949          * associated with any HBQ.
 950          */
 951 #define QUE_BUFTAG_BIT  (1<<31)
 952         uint32_t buffer_tag_count;
 953         int wait_4_mlo_maint_flg;
 954         wait_queue_head_t wait_4_mlo_m_q;
 955         /* data structure used for latency data collection */
 956 #define LPFC_NO_BUCKET     0
 957 #define LPFC_LINEAR_BUCKET 1
 958 #define LPFC_POWER2_BUCKET 2
 959         uint8_t  bucket_type;
 960         uint32_t bucket_base;
 961         uint32_t bucket_step;
 962
 963 /* Maximum number of events that can be outstanding at any time*/
 964 #define LPFC_MAX_EVT_COUNT 512
 965         atomic_t fast_event_count;
 966         uint32_t fcoe_eventtag;
 967         uint32_t fcoe_eventtag_at_fcf_scan;
 968         uint32_t fcoe_cvl_eventtag;
 969         uint32_t fcoe_cvl_eventtag_attn;
 970         struct lpfc_fcf fcf;
 971         uint8_t fc_map[3];
 972         uint8_t valid_vlan;
 973         uint16_t vlan_id;
 974         struct list_head fcf_conn_rec_list;
 975
 976         spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
 977         struct list_head ct_ev_waiters;
 978         struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
 979         uint32_t ctx_idx;
 980
 981         uint8_t menlo_flag;     /* menlo generic flags */
 982 #define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
 983         uint32_t iocb_cnt;
 984         uint32_t iocb_max;
 985         atomic_t sdev_cnt;
 986         uint8_t fips_spec_rev;
 987         uint8_t fips_level;
 988         spinlock_t devicelock;  /* lock for luns list */
 989         mempool_t *device_data_mem_pool;
 990         struct list_head luns;
 991 };
 992
 993 static inline struct Scsi_Host *
 994 lpfc_shost_from_vport(struct lpfc_vport *vport)
 995 {
 996         return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
 997 }
 998
 999 static inline void
1000 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1001 {
1002         if (phba->cfg_topology == FLAGS_LOCAL_LB)
1003                 phba->link_flag |= LS_LOOPBACK_MODE;
1004         else
1005                 phba->link_flag &= ~LS_LOOPBACK_MODE;
1006 }
1007
1008 static inline int
1009 lpfc_is_link_up(struct lpfc_hba *phba)
1010 {
1011         return  phba->link_state == LPFC_LINK_UP ||
1012                 phba->link_state == LPFC_CLEAR_LA ||
1013                 phba->link_state == LPFC_HBA_READY;
1014 }
1015
1016 static inline void
1017 lpfc_worker_wake_up(struct lpfc_hba *phba)
1018 {
1019         /* Set the lpfc data pending flag */
1020         set_bit(LPFC_DATA_READY, &phba->data_flags);
1021
1022         /* Wake up worker thread */
1023         wake_up(&phba->work_waitq);
1024         return;
1025 }
1026
1027 static inline int
1028 lpfc_readl(void __iomem *addr, uint32_t *data)
1029 {
1030         uint32_t temp;
1031         temp = readl(addr);
1032         if (temp == 0xffffffff)
1033                 return -EIO;
1034         *data = temp;
1035         return 0;
1036 }
1037
1038 static inline int
1039 lpfc_sli_read_hs(struct lpfc_hba *phba)
1040 {
1041         /*
1042          * There was a link/board error. Read the status register to retrieve
1043          * the error event and process it.
1044          */
1045         phba->sli.slistat.err_attn_event++;
1046
1047         /* Save status info and check for unplug error */
1048         if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1049                 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1050                 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1051                 return -EIO;
1052         }
1053
1054         /* Clear chip Host Attention error bit */
1055         writel(HA_ERATT, phba->HAregaddr);
1056         readl(phba->HAregaddr); /* flush */
1057         phba->pport->stopped = 1;
1058
1059         return 0;
1060 }