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) 2017 Broadcom. All Rights Reserved. The term      *
   5  * “Broadcom” refers to Broadcom Limited and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <scsi/scsi_host.h>
  25 #include <linux/ktime.h>
  26
  27 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  28 #define CONFIG_SCSI_LPFC_DEBUG_FS
  29 #endif
  30
  31 struct lpfc_sli2_slim;
  32
  33 #define ELX_MODEL_NAME_SIZE     80
  34
  35 #define LPFC_PCI_DEV_LP         0x1
  36 #define LPFC_PCI_DEV_OC         0x2
  37
  38 #define LPFC_SLI_REV2           2
  39 #define LPFC_SLI_REV3           3
  40 #define LPFC_SLI_REV4           4
  41
  42 #define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  43 #define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  44                                            requests */
  45 #define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  46                                            the NameServer  before giving up. */
  47 #define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  48 #define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  49 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  50                 cmnd for menlo needs nearly twice as for firmware
  51                 downloads using bsg */
  52
  53 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
  54 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
  55 #define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
  56 #define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  57 #define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
  58 #define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
  59 #define LPFC_MIN_NVME_SEG_CNT   254
  60
  61 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  62 #define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  63 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  64 #define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  65 #define LPFC_TGTQ_INTERVAL      40000   /* Min amount of time between tgt
  66                                            queue depth change in millisecs */
  67 #define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  68 #define LPFC_MIN_TGT_QDEPTH     10
  69 #define LPFC_MAX_TGT_QDEPTH     0xFFFF
  70
  71 #define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  72                                            collection. */
  73 /*
  74  * Following time intervals are used of adjusting SCSI device
  75  * queue depths when there are driver resource error or Firmware
  76  * resource error.
  77  */
  78 /* 1 Second */
  79 #define QUEUE_RAMP_DOWN_INTERVAL        (msecs_to_jiffies(1000 * 1))
  80
  81 /* Number of exchanges reserved for discovery to complete */
  82 #define LPFC_DISC_IOCB_BUFF_COUNT 20
  83
  84 #define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  85 #define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  86
  87 #define LPFC_LOOK_AHEAD_OFF     0       /* Look ahead logic is turned off */
  88
  89 /* Error Attention event polling interval */
  90 #define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */
  91
  92 /* Define macros for 64 bit support */
  93 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  94 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  95 #define getPaddr(high, low)  ((dma_addr_t)( \
  96                              (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  97 /* Provide maximum configuration definitions. */
  98 #define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
  99 #define FC_MAX_ADPTMSG          64
 100
 101 #define MAX_HBAEVT      32
 102 #define MAX_HBAS_NO_RESET 16
 103
 104 /* Number of MSI-X vectors the driver uses */
 105 #define LPFC_MSIX_VECTORS       2
 106
 107 /* lpfc wait event data ready flag */
 108 #define LPFC_DATA_READY         0       /* bit 0 */
 109
 110 /* queue dump line buffer size */
 111 #define LPFC_LBUF_SZ            128
 112
 113 /* mailbox system shutdown options */
 114 #define LPFC_MBX_NO_WAIT        0
 115 #define LPFC_MBX_WAIT           1
 116
 117 enum lpfc_polling_flags {
 118         ENABLE_FCP_RING_POLLING = 0x1,
 119         DISABLE_FCP_RING_INT    = 0x2
 120 };
 121
 122 struct perf_prof {
 123         uint16_t cmd_cpu[40];
 124         uint16_t rsp_cpu[40];
 125         uint16_t qh_cpu[40];
 126         uint16_t wqidx[40];
 127 };
 128
 129 /*
 130  * Provide for FC4 TYPE x28 - NVME.  The
 131  * bit mask for FCP and NVME is 0x8 identically
 132  * because they are 32 bit positions distance.
 133  */
 134 #define LPFC_FC4_TYPE_BITMASK   0x00000100
 135
 136 /* Provide DMA memory definitions the driver uses per port instance. */
 137 struct lpfc_dmabuf {
 138         struct list_head list;
 139         void *virt;             /* virtual address ptr */
 140         dma_addr_t phys;        /* mapped address */
 141         uint32_t   buffer_tag;  /* used for tagged queue ring */
 142 };
 143
 144 struct lpfc_dma_pool {
 145         struct lpfc_dmabuf   *elements;
 146         uint32_t    max_count;
 147         uint32_t    current_count;
 148 };
 149
 150 struct hbq_dmabuf {
 151         struct lpfc_dmabuf hbuf;
 152         struct lpfc_dmabuf dbuf;
 153         uint16_t total_size;
 154         uint16_t bytes_recv;
 155         uint32_t tag;
 156         struct lpfc_cq_event cq_event;
 157         unsigned long time_stamp;
 158         void *context;
 159 };
 160
 161 struct rqb_dmabuf {
 162         struct lpfc_dmabuf hbuf;
 163         struct lpfc_dmabuf dbuf;
 164         uint16_t total_size;
 165         uint16_t bytes_recv;
 166         void *context;
 167         struct lpfc_iocbq *iocbq;
 168         struct lpfc_sglq *sglq;
 169         struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
 170         struct lpfc_queue *drq;   /* ptr to associated Data RQ */
 171 };
 172
 173 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 174 #define MEM_PRI         0x100
 175
 176
 177 /****************************************************************************/
 178 /*      Device VPD save area                                                */
 179 /****************************************************************************/
 180 typedef struct lpfc_vpd {
 181         uint32_t status;        /* vpd status value */
 182         uint32_t length;        /* number of bytes actually returned */
 183         struct {
 184                 uint32_t rsvd1; /* Revision numbers */
 185                 uint32_t biuRev;
 186                 uint32_t smRev;
 187                 uint32_t smFwRev;
 188                 uint32_t endecRev;
 189                 uint16_t rBit;
 190                 uint8_t fcphHigh;
 191                 uint8_t fcphLow;
 192                 uint8_t feaLevelHigh;
 193                 uint8_t feaLevelLow;
 194                 uint32_t postKernRev;
 195                 uint32_t opFwRev;
 196                 uint8_t opFwName[16];
 197                 uint32_t sli1FwRev;
 198                 uint8_t sli1FwName[16];
 199                 uint32_t sli2FwRev;
 200                 uint8_t sli2FwName[16];
 201         } rev;
 202         struct {
 203 #ifdef __BIG_ENDIAN_BITFIELD
 204                 uint32_t rsvd3  :19;  /* Reserved                             */
 205                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 206                 uint32_t rsvd2  : 3;  /* Reserved                             */
 207                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 208                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 209                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 210                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 211                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 212                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 213                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 214                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 215                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 216 #else   /*  __LITTLE_ENDIAN */
 217                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 218                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 219                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 220                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 221                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 222                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 223                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 224                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 225                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 226                 uint32_t rsvd2  : 3;  /* Reserved                             */
 227                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 228                 uint32_t rsvd3  :19;  /* Reserved                             */
 229 #endif
 230         } sli3Feat;
 231 } lpfc_vpd_t;
 232
 233 struct lpfc_scsi_buf;
 234
 235
 236 /*
 237  * lpfc stat counters
 238  */
 239 struct lpfc_stats {
 240         /* Statistics for ELS commands */
 241         uint32_t elsLogiCol;
 242         uint32_t elsRetryExceeded;
 243         uint32_t elsXmitRetry;
 244         uint32_t elsDelayRetry;
 245         uint32_t elsRcvDrop;
 246         uint32_t elsRcvFrame;
 247         uint32_t elsRcvRSCN;
 248         uint32_t elsRcvRNID;
 249         uint32_t elsRcvFARP;
 250         uint32_t elsRcvFARPR;
 251         uint32_t elsRcvFLOGI;
 252         uint32_t elsRcvPLOGI;
 253         uint32_t elsRcvADISC;
 254         uint32_t elsRcvPDISC;
 255         uint32_t elsRcvFAN;
 256         uint32_t elsRcvLOGO;
 257         uint32_t elsRcvPRLO;
 258         uint32_t elsRcvPRLI;
 259         uint32_t elsRcvLIRR;
 260         uint32_t elsRcvRLS;
 261         uint32_t elsRcvRPS;
 262         uint32_t elsRcvRPL;
 263         uint32_t elsRcvRRQ;
 264         uint32_t elsRcvRTV;
 265         uint32_t elsRcvECHO;
 266         uint32_t elsRcvLCB;
 267         uint32_t elsRcvRDP;
 268         uint32_t elsXmitFLOGI;
 269         uint32_t elsXmitFDISC;
 270         uint32_t elsXmitPLOGI;
 271         uint32_t elsXmitPRLI;
 272         uint32_t elsXmitADISC;
 273         uint32_t elsXmitLOGO;
 274         uint32_t elsXmitSCR;
 275         uint32_t elsXmitRNID;
 276         uint32_t elsXmitFARP;
 277         uint32_t elsXmitFARPR;
 278         uint32_t elsXmitACC;
 279         uint32_t elsXmitLSRJT;
 280
 281         uint32_t frameRcvBcast;
 282         uint32_t frameRcvMulti;
 283         uint32_t strayXmitCmpl;
 284         uint32_t frameXmitDelay;
 285         uint32_t xriCmdCmpl;
 286         uint32_t xriStatErr;
 287         uint32_t LinkUp;
 288         uint32_t LinkDown;
 289         uint32_t LinkMultiEvent;
 290         uint32_t NoRcvBuf;
 291         uint32_t fcpCmd;
 292         uint32_t fcpCmpl;
 293         uint32_t fcpRspErr;
 294         uint32_t fcpRemoteStop;
 295         uint32_t fcpPortRjt;
 296         uint32_t fcpPortBusy;
 297         uint32_t fcpError;
 298         uint32_t fcpLocalErr;
 299 };
 300
 301 struct lpfc_hba;
 302
 303
 304 enum discovery_state {
 305         LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 306         LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 307         LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 308         LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 309         LPFC_FDISC             =  8,    /* FDISC sent for vport */
 310         LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 311                                          * configured */
 312         LPFC_NS_REG            =  10,   /* Register with NameServer */
 313         LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 314         LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 315                                          * device authentication / discovery */
 316         LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 317         LPFC_VPORT_READY       =  32,
 318 };
 319
 320 enum hba_state {
 321         LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 322         LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 323         LPFC_INIT_START      =   2,   /* Initial state after board reset */
 324         LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 325         LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 326         LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 327         LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 328                                        * CLEAR_LA */
 329         LPFC_HBA_READY       =  32,
 330         LPFC_HBA_ERROR       =  -1
 331 };
 332
 333 struct lpfc_vport {
 334         struct lpfc_hba *phba;
 335         struct list_head listentry;
 336         uint8_t port_type;
 337 #define LPFC_PHYSICAL_PORT 1
 338 #define LPFC_NPIV_PORT  2
 339 #define LPFC_FABRIC_PORT 3
 340         enum discovery_state port_state;
 341
 342         uint16_t vpi;
 343         uint16_t vfi;
 344         uint8_t vpi_state;
 345 #define LPFC_VPI_REGISTERED     0x1
 346
 347         uint32_t fc_flag;       /* FC flags */
 348 /* Several of these flags are HBA centric and should be moved to
 349  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 350  */
 351 #define FC_PT2PT                0x1      /* pt2pt with no fabric */
 352 #define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 353 #define FC_DISC_TMO             0x4      /* Discovery timer running */
 354 #define FC_PUBLIC_LOOP          0x8      /* Public loop */
 355 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 356 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 357 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 358 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 359 #define FC_FABRIC               0x100    /* We are fabric attached */
 360 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 361 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 362 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 363 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 364 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 365 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 366 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 367 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 368 #define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 369 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 370 #define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 371 #define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 372 #define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 373 #define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 374
 375         uint32_t ct_flags;
 376 #define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 377 #define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 378 #define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 379 #define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 380 #define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 381
 382         struct list_head fc_nodes;
 383
 384         /* Keep counters for the number of entries in each list. */
 385         uint16_t fc_plogi_cnt;
 386         uint16_t fc_adisc_cnt;
 387         uint16_t fc_reglogin_cnt;
 388         uint16_t fc_prli_cnt;
 389         uint16_t fc_unmap_cnt;
 390         uint16_t fc_map_cnt;
 391         uint16_t fc_npr_cnt;
 392         uint16_t fc_unused_cnt;
 393         struct serv_parm fc_sparam;     /* buffer for our service parameters */
 394
 395         uint32_t fc_myDID;      /* fibre channel S_ID */
 396         uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 397         struct lpfc_name fabric_portname;
 398         struct lpfc_name fabric_nodename;
 399
 400         int32_t stopped;   /* HBA has not been restarted since last ERATT */
 401         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 402
 403         uint32_t num_disc_nodes;        /* in addition to hba_state */
 404         uint32_t gidft_inp;             /* cnt of outstanding GID_FTs */
 405
 406         uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 407         uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 408         uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 409         struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 410         struct lpfc_name fc_nodename;   /* fc nodename */
 411         struct lpfc_name fc_portname;   /* fc portname */
 412
 413         struct lpfc_work_evt disc_timeout_evt;
 414
 415         struct timer_list fc_disctmo;   /* Discovery rescue timer */
 416         uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 417         uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 418
 419         spinlock_t work_port_lock;
 420         uint32_t work_port_events; /* Timeout to be handled  */
 421 #define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 422 #define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 423 #define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 424
 425 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 426 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 427 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 428 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 429 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 430 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 431
 432         struct timer_list els_tmofunc;
 433         struct timer_list delayed_disc_tmo;
 434
 435         int unreg_vpi_cmpl;
 436
 437         uint8_t load_flag;
 438 #define FC_LOADING              0x1     /* HBA in process of loading drvr */
 439 #define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 440 #define FC_ALLOW_FDMI           0x4     /* port is ready for FDMI requests */
 441         /* Vport Config Parameters */
 442         uint32_t cfg_scan_down;
 443         uint32_t cfg_lun_queue_depth;
 444         uint32_t cfg_nodev_tmo;
 445         uint32_t cfg_devloss_tmo;
 446         uint32_t cfg_restrict_login;
 447         uint32_t cfg_peer_port_login;
 448         uint32_t cfg_fcp_class;
 449         uint32_t cfg_use_adisc;
 450         uint32_t cfg_discovery_threads;
 451         uint32_t cfg_log_verbose;
 452         uint32_t cfg_max_luns;
 453         uint32_t cfg_enable_da_id;
 454         uint32_t cfg_max_scsicmpl_time;
 455         uint32_t cfg_tgt_queue_depth;
 456         uint32_t cfg_first_burst_size;
 457         uint32_t dev_loss_tmo_changed;
 458
 459         struct fc_vport *fc_vport;
 460
 461 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 462         struct dentry *debug_disc_trc;
 463         struct dentry *debug_nodelist;
 464         struct dentry *debug_nvmestat;
 465         struct dentry *debug_nvmektime;
 466         struct dentry *debug_cpucheck;
 467         struct dentry *vport_debugfs_root;
 468         struct lpfc_debugfs_trc *disc_trc;
 469         atomic_t disc_trc_cnt;
 470 #endif
 471         uint8_t stat_data_enabled;
 472         uint8_t stat_data_blocked;
 473         struct list_head rcv_buffer_list;
 474         unsigned long rcv_buffer_time_stamp;
 475         uint32_t vport_flag;
 476 #define STATIC_VPORT    1
 477
 478         uint16_t fdmi_num_disc;
 479         uint32_t fdmi_hba_mask;
 480         uint32_t fdmi_port_mask;
 481
 482         /* There is a single nvme instance per vport. */
 483         struct nvme_fc_local_port *localport;
 484         uint8_t  nvmei_support; /* driver supports NVME Initiator */
 485         uint32_t last_fcp_wqidx;
 486 };
 487
 488 struct hbq_s {
 489         uint16_t entry_count;     /* Current number of HBQ slots */
 490         uint16_t buffer_count;    /* Current number of buffers posted */
 491         uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 492         uint32_t hbqPutIdx;       /* HBQ slot to use */
 493         uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 494         void    *hbq_virt;        /* Virtual ptr to this hbq */
 495         struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 496                                   /* Callback for HBQ buffer allocation */
 497         struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 498                                   /* Callback for HBQ buffer free */
 499         void               (*hbq_free_buffer) (struct lpfc_hba *,
 500                                                struct hbq_dmabuf *);
 501 };
 502
 503 /* this matches the position in the lpfc_hbq_defs array */
 504 #define LPFC_ELS_HBQ    0
 505 #define LPFC_MAX_HBQS   1
 506
 507 enum hba_temp_state {
 508         HBA_NORMAL_TEMP,
 509         HBA_OVER_TEMP
 510 };
 511
 512 enum intr_type_t {
 513         NONE = 0,
 514         INTx,
 515         MSI,
 516         MSIX,
 517 };
 518
 519 #define LPFC_CT_CTX_MAX         64
 520 struct unsol_rcv_ct_ctx {
 521         uint32_t ctxt_id;
 522         uint32_t SID;
 523         uint32_t valid;
 524 #define UNSOL_INVALID           0
 525 #define UNSOL_VALID             1
 526         uint16_t oxid;
 527         uint16_t rxid;
 528 };
 529
 530 #define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 531 #define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 532 #define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 533 #define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 534 #define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 535 #define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 536 #define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 537 #define LPFC_USER_LINK_SPEED_32G        32      /* 32 Gigabaud */
 538 #define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_32G
 539 #define LPFC_USER_LINK_SPEED_BITMAP  ((1ULL << LPFC_USER_LINK_SPEED_32G) | \
 540                                      (1 << LPFC_USER_LINK_SPEED_16G) | \
 541                                      (1 << LPFC_USER_LINK_SPEED_10G) | \
 542                                      (1 << LPFC_USER_LINK_SPEED_8G) | \
 543                                      (1 << LPFC_USER_LINK_SPEED_4G) | \
 544                                      (1 << LPFC_USER_LINK_SPEED_2G) | \
 545                                      (1 << LPFC_USER_LINK_SPEED_1G) | \
 546                                      (1 << LPFC_USER_LINK_SPEED_AUTO))
 547 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32"
 548
 549 enum nemb_type {
 550         nemb_mse = 1,
 551         nemb_hbd
 552 };
 553
 554 enum mbox_type {
 555         mbox_rd = 1,
 556         mbox_wr
 557 };
 558
 559 enum dma_type {
 560         dma_mbox = 1,
 561         dma_ebuf
 562 };
 563
 564 enum sta_type {
 565         sta_pre_addr = 1,
 566         sta_pos_addr
 567 };
 568
 569 struct lpfc_mbox_ext_buf_ctx {
 570         uint32_t state;
 571 #define LPFC_BSG_MBOX_IDLE              0
 572 #define LPFC_BSG_MBOX_HOST              1
 573 #define LPFC_BSG_MBOX_PORT              2
 574 #define LPFC_BSG_MBOX_DONE              3
 575 #define LPFC_BSG_MBOX_ABTS              4
 576         enum nemb_type nembType;
 577         enum mbox_type mboxType;
 578         uint32_t numBuf;
 579         uint32_t mbxTag;
 580         uint32_t seqNum;
 581         struct lpfc_dmabuf *mbx_dmabuf;
 582         struct list_head ext_dmabuf_list;
 583 };
 584
 585 struct lpfc_hba {
 586         /* SCSI interface function jump table entries */
 587         int (*lpfc_new_scsi_buf)
 588                 (struct lpfc_vport *, int);
 589         struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
 590                 (struct lpfc_hba *, struct lpfc_nodelist *);
 591         int (*lpfc_scsi_prep_dma_buf)
 592                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 593         void (*lpfc_scsi_unprep_dma_buf)
 594                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 595         void (*lpfc_release_scsi_buf)
 596                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 597         void (*lpfc_rampdown_queue_depth)
 598                 (struct lpfc_hba *);
 599         void (*lpfc_scsi_prep_cmnd)
 600                 (struct lpfc_vport *, struct lpfc_scsi_buf *,
 601                  struct lpfc_nodelist *);
 602
 603         /* IOCB interface function jump table entries */
 604         int (*__lpfc_sli_issue_iocb)
 605                 (struct lpfc_hba *, uint32_t,
 606                  struct lpfc_iocbq *, uint32_t);
 607         void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 608                          struct lpfc_iocbq *);
 609         int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 610         IOCB_t * (*lpfc_get_iocb_from_iocbq)
 611                 (struct lpfc_iocbq *);
 612         void (*lpfc_scsi_cmd_iocb_cmpl)
 613                 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 614
 615         /* MBOX interface function jump table entries */
 616         int (*lpfc_sli_issue_mbox)
 617                 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 618
 619         /* Slow-path IOCB process function jump table entries */
 620         void (*lpfc_sli_handle_slow_ring_event)
 621                 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 622                  uint32_t mask);
 623
 624         /* INIT device interface function jump table entries */
 625         int (*lpfc_sli_hbq_to_firmware)
 626                 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 627         int (*lpfc_sli_brdrestart)
 628                 (struct lpfc_hba *);
 629         int (*lpfc_sli_brdready)
 630                 (struct lpfc_hba *, uint32_t);
 631         void (*lpfc_handle_eratt)
 632                 (struct lpfc_hba *);
 633         void (*lpfc_stop_port)
 634                 (struct lpfc_hba *);
 635         int (*lpfc_hba_init_link)
 636                 (struct lpfc_hba *, uint32_t);
 637         int (*lpfc_hba_down_link)
 638                 (struct lpfc_hba *, uint32_t);
 639         int (*lpfc_selective_reset)
 640                 (struct lpfc_hba *);
 641
 642         int (*lpfc_bg_scsi_prep_dma_buf)
 643                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 644         /* Add new entries here */
 645
 646         /* SLI4 specific HBA data structure */
 647         struct lpfc_sli4_hba sli4_hba;
 648
 649         struct lpfc_sli sli;
 650         uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 651         uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 652         uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 653 #define LPFC_SLI3_HBQ_ENABLED           0x01
 654 #define LPFC_SLI3_NPIV_ENABLED          0x02
 655 #define LPFC_SLI3_VPORT_TEARDOWN        0x04
 656 #define LPFC_SLI3_CRP_ENABLED           0x08
 657 #define LPFC_SLI3_BG_ENABLED            0x20
 658 #define LPFC_SLI3_DSS_ENABLED           0x40
 659 #define LPFC_SLI4_PERFH_ENABLED         0x80
 660 #define LPFC_SLI4_PHWQ_ENABLED          0x100
 661         uint32_t iocb_cmd_size;
 662         uint32_t iocb_rsp_size;
 663
 664         enum hba_state link_state;
 665         uint32_t link_flag;     /* link state flags */
 666 #define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 667                                         /* This flag is set while issuing */
 668                                         /* INIT_LINK mailbox command */
 669 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 670 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 671
 672         uint32_t hba_flag;      /* hba generic flags */
 673 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 674 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 675 #define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 676 #define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 677 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 678 #define FCP_XRI_ABORT_EVENT     0x20
 679 #define ELS_XRI_ABORT_EVENT     0x40
 680 #define ASYNC_EVENT             0x80
 681 #define LINK_DISABLED           0x100 /* Link disabled by user */
 682 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 683 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 684 #define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 685 #define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 686 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 687 #define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 688 #define HBA_FCP_IOQ_FLUSH       0x8000 /* FCP I/O queues being flushed */
 689 #define HBA_FW_DUMP_OP          0x10000 /* Skips fn reset before FW dump */
 690 #define HBA_RECOVERABLE_UE      0x20000 /* Firmware supports recoverable UE */
 691 #define HBA_FORCED_LINK_SPEED   0x40000 /*
 692                                          * Firmware supports Forced Link Speed
 693                                          * capability
 694                                          */
 695 #define HBA_NVME_IOQ_FLUSH      0x80000 /* NVME IO queues flushed. */
 696 #define NVME_XRI_ABORT_EVENT    0x100000
 697
 698         uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 699         struct lpfc_dmabuf slim2p;
 700
 701         MAILBOX_t *mbox;
 702         uint32_t *mbox_ext;
 703         struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 704         uint32_t ha_copy;
 705         struct _PCB *pcb;
 706         struct _IOCB *IOCBs;
 707
 708         struct lpfc_dmabuf hbqslimp;
 709
 710         uint16_t pci_cfg_value;
 711
 712         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 713
 714         uint32_t fc_eventTag;   /* event tag for link attention */
 715         uint32_t link_events;
 716
 717         /* These fields used to be binfo */
 718         uint32_t fc_pref_DID;   /* preferred D_ID */
 719         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 720         uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 721         uint32_t fc_edtov;      /* E_D_TOV timer value */
 722         uint32_t fc_arbtov;     /* ARB_TOV timer value */
 723         uint32_t fc_ratov;      /* R_A_TOV timer value */
 724         uint32_t fc_rttov;      /* R_T_TOV timer value */
 725         uint32_t fc_altov;      /* AL_TOV timer value */
 726         uint32_t fc_crtov;      /* C_R_TOV timer value */
 727         uint32_t fc_citov;      /* C_I_TOV timer value */
 728
 729         struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 730         uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 731
 732         uint32_t lmt;
 733
 734         uint32_t fc_topology;   /* link topology, from LINK INIT */
 735         uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
 736
 737         struct lpfc_stats fc_stat;
 738
 739         struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 740         uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 741
 742         uint8_t  wwnn[8];
 743         uint8_t  wwpn[8];
 744         uint32_t RandomData[7];
 745         uint8_t  fcp_embed_io;
 746         uint8_t  nvme_support;  /* Firmware supports NVME */
 747         uint8_t  nvmet_support; /* driver supports NVMET */
 748 #define LPFC_NVMET_MAX_PORTS    32
 749         uint8_t  mds_diags_support;
 750
 751         /* HBA Config Parameters */
 752         uint32_t cfg_ack0;
 753         uint32_t cfg_enable_npiv;
 754         uint32_t cfg_enable_rrq;
 755         uint32_t cfg_topology;
 756         uint32_t cfg_link_speed;
 757 #define LPFC_FCF_FOV 1          /* Fast fcf failover */
 758 #define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 759         uint32_t cfg_fcf_failover_policy;
 760         uint32_t cfg_fcp_io_sched;
 761         uint32_t cfg_fcp2_no_tgt_reset;
 762         uint32_t cfg_cr_delay;
 763         uint32_t cfg_cr_count;
 764         uint32_t cfg_multi_ring_support;
 765         uint32_t cfg_multi_ring_rctl;
 766         uint32_t cfg_multi_ring_type;
 767         uint32_t cfg_poll;
 768         uint32_t cfg_poll_tmo;
 769         uint32_t cfg_task_mgmt_tmo;
 770         uint32_t cfg_use_msi;
 771         uint32_t cfg_fcp_imax;
 772         uint32_t cfg_fcp_cpu_map;
 773         uint32_t cfg_fcp_io_channel;
 774         uint32_t cfg_suppress_rsp;
 775         uint32_t cfg_nvme_oas;
 776         uint32_t cfg_nvme_io_channel;
 777         uint32_t cfg_nvmet_mrq;
 778         uint32_t cfg_nvmet_mrq_post;
 779         uint32_t cfg_enable_nvmet;
 780         uint32_t cfg_nvme_enable_fb;
 781         uint32_t cfg_nvmet_fb_size;
 782         uint32_t cfg_total_seg_cnt;
 783         uint32_t cfg_sg_seg_cnt;
 784         uint32_t cfg_sg_dma_buf_size;
 785         uint64_t cfg_soft_wwnn;
 786         uint64_t cfg_soft_wwpn;
 787         uint32_t cfg_hba_queue_depth;
 788         uint32_t cfg_enable_hba_reset;
 789         uint32_t cfg_enable_hba_heartbeat;
 790         uint32_t cfg_fof;
 791         uint32_t cfg_EnableXLane;
 792         uint8_t cfg_oas_tgt_wwpn[8];
 793         uint8_t cfg_oas_vpt_wwpn[8];
 794         uint32_t cfg_oas_lun_state;
 795 #define OAS_LUN_ENABLE  1
 796 #define OAS_LUN_DISABLE 0
 797         uint32_t cfg_oas_lun_status;
 798 #define OAS_LUN_STATUS_EXISTS   0x01
 799         uint32_t cfg_oas_flags;
 800 #define OAS_FIND_ANY_VPORT      0x01
 801 #define OAS_FIND_ANY_TARGET     0x02
 802 #define OAS_LUN_VALID   0x04
 803         uint32_t cfg_oas_priority;
 804         uint32_t cfg_XLanePriority;
 805         uint32_t cfg_enable_bg;
 806         uint32_t cfg_prot_mask;
 807         uint32_t cfg_prot_guard;
 808         uint32_t cfg_hostmem_hgp;
 809         uint32_t cfg_log_verbose;
 810         uint32_t cfg_aer_support;
 811         uint32_t cfg_sriov_nr_virtfn;
 812         uint32_t cfg_request_firmware_upgrade;
 813         uint32_t cfg_iocb_cnt;
 814         uint32_t cfg_suppress_link_up;
 815         uint32_t cfg_rrq_xri_bitmap_sz;
 816         uint32_t cfg_delay_discovery;
 817         uint32_t cfg_sli_mode;
 818 #define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 819 #define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 820 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 821         uint32_t cfg_enable_dss;
 822         uint32_t cfg_fdmi_on;
 823 #define LPFC_FDMI_NO_SUPPORT    0       /* FDMI not supported */
 824 #define LPFC_FDMI_SUPPORT       1       /* FDMI supported? */
 825         uint32_t cfg_enable_SmartSAN;
 826         uint32_t cfg_enable_mds_diags;
 827         uint32_t cfg_enable_fc4_type;
 828         uint32_t cfg_xri_split;
 829 #define LPFC_ENABLE_FCP  1
 830 #define LPFC_ENABLE_NVME 2
 831 #define LPFC_ENABLE_BOTH 3
 832         uint32_t io_channel_irqs;       /* number of irqs for io channels */
 833         struct nvmet_fc_target_port *targetport;
 834         lpfc_vpd_t vpd;         /* vital product data */
 835
 836         struct pci_dev *pcidev;
 837         struct list_head      work_list;
 838         uint32_t              work_ha;      /* Host Attention Bits for WT */
 839         uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 840         uint32_t              work_hs;      /* HS stored in case of ERRAT */
 841         uint32_t              work_status[2]; /* Extra status from SLIM */
 842
 843         wait_queue_head_t    work_waitq;
 844         struct task_struct   *worker_thread;
 845         unsigned long data_flags;
 846
 847         uint32_t hbq_in_use;            /* HBQs in use flag */
 848         uint32_t hbq_count;             /* Count of configured HBQs */
 849         struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 850
 851         atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
 852         atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
 853
 854         phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
 855         phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
 856         phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
 857         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 858                                            PCI BAR0 */
 859         void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 860                                             PCI BAR2 */
 861
 862         void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
 863                                             PCI BAR0 with dual-ULP support */
 864         void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
 865                                             PCI BAR2 with dual-ULP support */
 866         void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
 867                                             PCI BAR4 with dual-ULP support */
 868 #define PCI_64BIT_BAR0  0
 869 #define PCI_64BIT_BAR2  2
 870 #define PCI_64BIT_BAR4  4
 871         void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 872         void __iomem *HAregaddr;        /* virtual address for host attn reg */
 873         void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 874         void __iomem *HSregaddr;        /* virtual address for host status
 875                                            reg */
 876         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 877
 878         struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 879         struct lpfc_pgp   *port_gp;
 880         uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 881         uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 882
 883         int brd_no;                     /* FC board number */
 884         char SerialNumber[32];          /* adapter Serial Number */
 885         char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 886         char ModelDesc[256];            /* Model Description */
 887         char ModelName[80];             /* Model Name */
 888         char ProgramType[256];          /* Program Type */
 889         char Port[20];                  /* Port No */
 890         uint8_t vpd_flag;               /* VPD data flag */
 891
 892 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 893 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 894 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 895 #define VPD_PORT            0x8         /* valid vpd port data */
 896 #define VPD_MASK            0xf         /* mask for any vpd data */
 897
 898         uint8_t soft_wwn_enable;
 899
 900         struct timer_list fcp_poll_timer;
 901         struct timer_list eratt_poll;
 902         uint32_t eratt_poll_interval;
 903
 904         /*
 905          * stat  counters
 906          */
 907         uint64_t fc4ScsiInputRequests;
 908         uint64_t fc4ScsiOutputRequests;
 909         uint64_t fc4ScsiControlRequests;
 910         uint64_t fc4ScsiIoCmpls;
 911         uint64_t fc4NvmeInputRequests;
 912         uint64_t fc4NvmeOutputRequests;
 913         uint64_t fc4NvmeControlRequests;
 914         uint64_t fc4NvmeIoCmpls;
 915         uint64_t fc4NvmeLsRequests;
 916         uint64_t fc4NvmeLsCmpls;
 917
 918         uint64_t bg_guard_err_cnt;
 919         uint64_t bg_apptag_err_cnt;
 920         uint64_t bg_reftag_err_cnt;
 921
 922         /* fastpath list. */
 923         spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
 924         spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
 925         struct list_head lpfc_scsi_buf_list_get;
 926         struct list_head lpfc_scsi_buf_list_put;
 927         uint32_t total_scsi_bufs;
 928         spinlock_t nvme_buf_list_get_lock;  /* NVME buf alloc list lock */
 929         spinlock_t nvme_buf_list_put_lock;  /* NVME buf free list lock */
 930         struct list_head lpfc_nvme_buf_list_get;
 931         struct list_head lpfc_nvme_buf_list_put;
 932         uint32_t total_nvme_bufs;
 933         struct list_head lpfc_iocb_list;
 934         uint32_t total_iocbq_bufs;
 935         struct list_head active_rrq_list;
 936         spinlock_t hbalock;
 937
 938         /* pci_mem_pools */
 939         struct pci_pool *lpfc_sg_dma_buf_pool;
 940         struct pci_pool *lpfc_mbuf_pool;
 941         struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
 942         struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
 943         struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 944         struct pci_pool *txrdy_payload_pool;
 945         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 946
 947         mempool_t *mbox_mem_pool;
 948         mempool_t *nlp_mem_pool;
 949         mempool_t *rrq_pool;
 950         mempool_t *active_rrq_pool;
 951
 952         struct fc_host_statistics link_stats;
 953         enum intr_type_t intr_type;
 954         uint32_t intr_mode;
 955 #define LPFC_INTR_ERROR 0xFFFFFFFF
 956         struct list_head port_list;
 957         struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
 958         uint16_t max_vpi;               /* Maximum virtual nports */
 959 #define LPFC_MAX_VPI 0xFFFF             /* Max number of VPI supported */
 960         uint16_t max_vports;            /*
 961                                          * For IOV HBAs max_vpi can change
 962                                          * after a reset. max_vports is max
 963                                          * number of vports present. This can
 964                                          * be greater than max_vpi.
 965                                          */
 966         uint16_t vpi_base;
 967         uint16_t vfi_base;
 968         unsigned long *vpi_bmask;       /* vpi allocation table */
 969         uint16_t *vpi_ids;
 970         uint16_t vpi_count;
 971         struct list_head lpfc_vpi_blk_list;
 972
 973         /* Data structure used by fabric iocb scheduler */
 974         struct list_head fabric_iocb_list;
 975         atomic_t fabric_iocb_count;
 976         struct timer_list fabric_block_timer;
 977         unsigned long bit_flags;
 978 #define FABRIC_COMANDS_BLOCKED  0
 979         atomic_t num_rsrc_err;
 980         atomic_t num_cmd_success;
 981         unsigned long last_rsrc_error_time;
 982         unsigned long last_ramp_down_time;
 983 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 984         struct dentry *hba_debugfs_root;
 985         atomic_t debugfs_vport_count;
 986         struct dentry *debug_hbqinfo;
 987         struct dentry *debug_dumpHostSlim;
 988         struct dentry *debug_dumpHBASlim;
 989         struct dentry *debug_dumpData;   /* BlockGuard BPL */
 990         struct dentry *debug_dumpDif;    /* BlockGuard BPL */
 991         struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
 992         struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
 993         struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
 994         struct dentry *debug_writeGuard; /* inject write guard_tag errors */
 995         struct dentry *debug_writeApp;   /* inject write app_tag errors */
 996         struct dentry *debug_writeRef;   /* inject write ref_tag errors */
 997         struct dentry *debug_readGuard;  /* inject read guard_tag errors */
 998         struct dentry *debug_readApp;    /* inject read app_tag errors */
 999         struct dentry *debug_readRef;    /* inject read ref_tag errors */
1000
1001         struct dentry *debug_nvmeio_trc;
1002         struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1003         atomic_t nvmeio_trc_cnt;
1004         uint32_t nvmeio_trc_size;
1005         uint32_t nvmeio_trc_output_idx;
1006
1007         /* T10 DIF error injection */
1008         uint32_t lpfc_injerr_wgrd_cnt;
1009         uint32_t lpfc_injerr_wapp_cnt;
1010         uint32_t lpfc_injerr_wref_cnt;
1011         uint32_t lpfc_injerr_rgrd_cnt;
1012         uint32_t lpfc_injerr_rapp_cnt;
1013         uint32_t lpfc_injerr_rref_cnt;
1014         uint32_t lpfc_injerr_nportid;
1015         struct lpfc_name lpfc_injerr_wwpn;
1016         sector_t lpfc_injerr_lba;
1017 #define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
1018
1019         struct dentry *debug_slow_ring_trc;
1020         struct lpfc_debugfs_trc *slow_ring_trc;
1021         atomic_t slow_ring_trc_cnt;
1022         /* iDiag debugfs sub-directory */
1023         struct dentry *idiag_root;
1024         struct dentry *idiag_pci_cfg;
1025         struct dentry *idiag_bar_acc;
1026         struct dentry *idiag_que_info;
1027         struct dentry *idiag_que_acc;
1028         struct dentry *idiag_drb_acc;
1029         struct dentry *idiag_ctl_acc;
1030         struct dentry *idiag_mbx_acc;
1031         struct dentry *idiag_ext_acc;
1032         uint8_t lpfc_idiag_last_eq;
1033 #endif
1034         uint16_t nvmeio_trc_on;
1035
1036         /* Used for deferred freeing of ELS data buffers */
1037         struct list_head elsbuf;
1038         int elsbuf_cnt;
1039         int elsbuf_prev_cnt;
1040
1041         uint8_t temp_sensor_support;
1042         /* Fields used for heart beat. */
1043         unsigned long last_completion_time;
1044         unsigned long skipped_hb;
1045         struct timer_list hb_tmofunc;
1046         uint8_t hb_outstanding;
1047         struct timer_list rrq_tmr;
1048         enum hba_temp_state over_temp_state;
1049         /* ndlp reference management */
1050         spinlock_t ndlp_lock;
1051         /*
1052          * Following bit will be set for all buffer tags which are not
1053          * associated with any HBQ.
1054          */
1055 #define QUE_BUFTAG_BIT  (1<<31)
1056         uint32_t buffer_tag_count;
1057         int wait_4_mlo_maint_flg;
1058         wait_queue_head_t wait_4_mlo_m_q;
1059         /* data structure used for latency data collection */
1060 #define LPFC_NO_BUCKET     0
1061 #define LPFC_LINEAR_BUCKET 1
1062 #define LPFC_POWER2_BUCKET 2
1063         uint8_t  bucket_type;
1064         uint32_t bucket_base;
1065         uint32_t bucket_step;
1066
1067 /* Maximum number of events that can be outstanding at any time*/
1068 #define LPFC_MAX_EVT_COUNT 512
1069         atomic_t fast_event_count;
1070         uint32_t fcoe_eventtag;
1071         uint32_t fcoe_eventtag_at_fcf_scan;
1072         uint32_t fcoe_cvl_eventtag;
1073         uint32_t fcoe_cvl_eventtag_attn;
1074         struct lpfc_fcf fcf;
1075         uint8_t fc_map[3];
1076         uint8_t valid_vlan;
1077         uint16_t vlan_id;
1078         struct list_head fcf_conn_rec_list;
1079
1080         spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1081         struct list_head ct_ev_waiters;
1082         struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1083         uint32_t ctx_idx;
1084
1085         uint8_t menlo_flag;     /* menlo generic flags */
1086 #define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
1087         uint32_t iocb_cnt;
1088         uint32_t iocb_max;
1089         atomic_t sdev_cnt;
1090         uint8_t fips_spec_rev;
1091         uint8_t fips_level;
1092         spinlock_t devicelock;  /* lock for luns list */
1093         mempool_t *device_data_mem_pool;
1094         struct list_head luns;
1095 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE     0x0080
1096 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE      0x0040
1097 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE         0x0020
1098 #define LPFC_TRANSGRESSION_LOW_VOLTAGE          0x0010
1099 #define LPFC_TRANSGRESSION_HIGH_TXBIAS          0x0008
1100 #define LPFC_TRANSGRESSION_LOW_TXBIAS           0x0004
1101 #define LPFC_TRANSGRESSION_HIGH_TXPOWER         0x0002
1102 #define LPFC_TRANSGRESSION_LOW_TXPOWER          0x0001
1103 #define LPFC_TRANSGRESSION_HIGH_RXPOWER         0x8000
1104 #define LPFC_TRANSGRESSION_LOW_RXPOWER          0x4000
1105         uint16_t sfp_alarm;
1106         uint16_t sfp_warning;
1107
1108 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1109 #define LPFC_CHECK_CPU_CNT    32
1110         uint32_t cpucheck_rcv_io[LPFC_CHECK_CPU_CNT];
1111         uint32_t cpucheck_xmt_io[LPFC_CHECK_CPU_CNT];
1112         uint32_t cpucheck_cmpl_io[LPFC_CHECK_CPU_CNT];
1113         uint32_t cpucheck_ccmpl_io[LPFC_CHECK_CPU_CNT];
1114         uint16_t cpucheck_on;
1115 #define LPFC_CHECK_OFF          0
1116 #define LPFC_CHECK_NVME_IO      1
1117 #define LPFC_CHECK_NVMET_RCV    2
1118 #define LPFC_CHECK_NVMET_IO     4
1119         uint16_t ktime_on;
1120         uint64_t ktime_data_samples;
1121         uint64_t ktime_status_samples;
1122         uint64_t ktime_last_cmd;
1123         uint64_t ktime_seg1_total;
1124         uint64_t ktime_seg1_min;
1125         uint64_t ktime_seg1_max;
1126         uint64_t ktime_seg2_total;
1127         uint64_t ktime_seg2_min;
1128         uint64_t ktime_seg2_max;
1129         uint64_t ktime_seg3_total;
1130         uint64_t ktime_seg3_min;
1131         uint64_t ktime_seg3_max;
1132         uint64_t ktime_seg4_total;
1133         uint64_t ktime_seg4_min;
1134         uint64_t ktime_seg4_max;
1135         uint64_t ktime_seg5_total;
1136         uint64_t ktime_seg5_min;
1137         uint64_t ktime_seg5_max;
1138         uint64_t ktime_seg6_total;
1139         uint64_t ktime_seg6_min;
1140         uint64_t ktime_seg6_max;
1141         uint64_t ktime_seg7_total;
1142         uint64_t ktime_seg7_min;
1143         uint64_t ktime_seg7_max;
1144         uint64_t ktime_seg8_total;
1145         uint64_t ktime_seg8_min;
1146         uint64_t ktime_seg8_max;
1147         uint64_t ktime_seg9_total;
1148         uint64_t ktime_seg9_min;
1149         uint64_t ktime_seg9_max;
1150         uint64_t ktime_seg10_total;
1151         uint64_t ktime_seg10_min;
1152         uint64_t ktime_seg10_max;
1153 #endif
1154 };
1155
1156 static inline struct Scsi_Host *
1157 lpfc_shost_from_vport(struct lpfc_vport *vport)
1158 {
1159         return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1160 }
1161
1162 static inline void
1163 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1164 {
1165         if (phba->cfg_topology == FLAGS_LOCAL_LB)
1166                 phba->link_flag |= LS_LOOPBACK_MODE;
1167         else
1168                 phba->link_flag &= ~LS_LOOPBACK_MODE;
1169 }
1170
1171 static inline int
1172 lpfc_is_link_up(struct lpfc_hba *phba)
1173 {
1174         return  phba->link_state == LPFC_LINK_UP ||
1175                 phba->link_state == LPFC_CLEAR_LA ||
1176                 phba->link_state == LPFC_HBA_READY;
1177 }
1178
1179 static inline void
1180 lpfc_worker_wake_up(struct lpfc_hba *phba)
1181 {
1182         /* Set the lpfc data pending flag */
1183         set_bit(LPFC_DATA_READY, &phba->data_flags);
1184
1185         /* Wake up worker thread */
1186         wake_up(&phba->work_waitq);
1187         return;
1188 }
1189
1190 static inline int
1191 lpfc_readl(void __iomem *addr, uint32_t *data)
1192 {
1193         uint32_t temp;
1194         temp = readl(addr);
1195         if (temp == 0xffffffff)
1196                 return -EIO;
1197         *data = temp;
1198         return 0;
1199 }
1200
1201 static inline int
1202 lpfc_sli_read_hs(struct lpfc_hba *phba)
1203 {
1204         /*
1205          * There was a link/board error. Read the status register to retrieve
1206          * the error event and process it.
1207          */
1208         phba->sli.slistat.err_attn_event++;
1209
1210         /* Save status info and check for unplug error */
1211         if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1212                 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1213                 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1214                 return -EIO;
1215         }
1216
1217         /* Clear chip Host Attention error bit */
1218         writel(HA_ERATT, phba->HAregaddr);
1219         readl(phba->HAregaddr); /* flush */
1220         phba->pport->stopped = 1;
1221
1222         return 0;
1223 }
1224
1225 static inline struct lpfc_sli_ring *
1226 lpfc_phba_elsring(struct lpfc_hba *phba)
1227 {
1228         if (phba->sli_rev == LPFC_SLI_REV4)
1229                 return phba->sli4_hba.els_wq->pring;
1230         return &phba->sli.sli3_ring[LPFC_ELS_RING];
1231 }