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) 2004-2012 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 LPFC_PCI_DEV_LP         0x1
  31 #define LPFC_PCI_DEV_OC         0x2
  32
  33 #define LPFC_SLI_REV2           2
  34 #define LPFC_SLI_REV3           3
  35 #define LPFC_SLI_REV4           4
  36
  37 #define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  38 #define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  39                                            requests */
  40 #define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  41                                            the NameServer  before giving up. */
  42 #define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  43 #define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  44 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  45                 cmnd for menlo needs nearly twice as for firmware
  46                 downloads using bsg */
  47 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */
  48 #define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  49 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  50 #define LPFC_MAX_PROT_SG_SEG_CNT 4096   /* prot sg element count per scsi cmd*/
  51 #define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  52 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  53 #define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  54 #define LPFC_TGTQ_INTERVAL      40000   /* Min amount of time between tgt
  55                                            queue depth change in millisecs */
  56 #define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  57 #define LPFC_MIN_TGT_QDEPTH     10
  58 #define LPFC_MAX_TGT_QDEPTH     0xFFFF
  59
  60 #define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  61                                            collection. */
  62 /*
  63  * Following time intervals are used of adjusting SCSI device
  64  * queue depths when there are driver resource error or Firmware
  65  * resource error.
  66  */
  67 #define QUEUE_RAMP_DOWN_INTERVAL        (1 * HZ)   /* 1 Second */
  68 #define QUEUE_RAMP_UP_INTERVAL          (300 * HZ) /* 5 minutes */
  69
  70 /* Number of exchanges reserved for discovery to complete */
  71 #define LPFC_DISC_IOCB_BUFF_COUNT 20
  72
  73 #define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  74 #define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  75
  76 /* Error Attention event polling interval */
  77 #define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */
  78
  79 /* Define macros for 64 bit support */
  80 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  81 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  82 #define getPaddr(high, low)  ((dma_addr_t)( \
  83                              (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  84 /* Provide maximum configuration definitions. */
  85 #define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
  86 #define FC_MAX_ADPTMSG          64
  87
  88 #define MAX_HBAEVT      32
  89
  90 /* Number of MSI-X vectors the driver uses */
  91 #define LPFC_MSIX_VECTORS       2
  92
  93 /* lpfc wait event data ready flag */
  94 #define LPFC_DATA_READY         (1<<0)
  95
  96 /* queue dump line buffer size */
  97 #define LPFC_LBUF_SZ            128
  98
  99 /* mailbox system shutdown options */
 100 #define LPFC_MBX_NO_WAIT        0
 101 #define LPFC_MBX_WAIT           1
 102
 103 enum lpfc_polling_flags {
 104         ENABLE_FCP_RING_POLLING = 0x1,
 105         DISABLE_FCP_RING_INT    = 0x2
 106 };
 107
 108 /* Provide DMA memory definitions the driver uses per port instance. */
 109 struct lpfc_dmabuf {
 110         struct list_head list;
 111         void *virt;             /* virtual address ptr */
 112         dma_addr_t phys;        /* mapped address */
 113         uint32_t   buffer_tag;  /* used for tagged queue ring */
 114 };
 115
 116 struct lpfc_dma_pool {
 117         struct lpfc_dmabuf   *elements;
 118         uint32_t    max_count;
 119         uint32_t    current_count;
 120 };
 121
 122 struct hbq_dmabuf {
 123         struct lpfc_dmabuf hbuf;
 124         struct lpfc_dmabuf dbuf;
 125         uint32_t size;
 126         uint32_t tag;
 127         struct lpfc_cq_event cq_event;
 128         unsigned long time_stamp;
 129 };
 130
 131 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 132 #define MEM_PRI         0x100
 133
 134
 135 /****************************************************************************/
 136 /*      Device VPD save area                                                */
 137 /****************************************************************************/
 138 typedef struct lpfc_vpd {
 139         uint32_t status;        /* vpd status value */
 140         uint32_t length;        /* number of bytes actually returned */
 141         struct {
 142                 uint32_t rsvd1; /* Revision numbers */
 143                 uint32_t biuRev;
 144                 uint32_t smRev;
 145                 uint32_t smFwRev;
 146                 uint32_t endecRev;
 147                 uint16_t rBit;
 148                 uint8_t fcphHigh;
 149                 uint8_t fcphLow;
 150                 uint8_t feaLevelHigh;
 151                 uint8_t feaLevelLow;
 152                 uint32_t postKernRev;
 153                 uint32_t opFwRev;
 154                 uint8_t opFwName[16];
 155                 uint32_t sli1FwRev;
 156                 uint8_t sli1FwName[16];
 157                 uint32_t sli2FwRev;
 158                 uint8_t sli2FwName[16];
 159         } rev;
 160         struct {
 161 #ifdef __BIG_ENDIAN_BITFIELD
 162                 uint32_t rsvd3  :19;  /* Reserved                             */
 163                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 164                 uint32_t rsvd2  : 3;  /* Reserved                             */
 165                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 166                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 167                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 168                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 169                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 170                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 171                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 172                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 173                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 174 #else   /*  __LITTLE_ENDIAN */
 175                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 176                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 177                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 178                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 179                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 180                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 181                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 182                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 183                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 184                 uint32_t rsvd2  : 3;  /* Reserved                             */
 185                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 186                 uint32_t rsvd3  :19;  /* Reserved                             */
 187 #endif
 188         } sli3Feat;
 189 } lpfc_vpd_t;
 190
 191 struct lpfc_scsi_buf;
 192
 193
 194 /*
 195  * lpfc stat counters
 196  */
 197 struct lpfc_stats {
 198         /* Statistics for ELS commands */
 199         uint32_t elsLogiCol;
 200         uint32_t elsRetryExceeded;
 201         uint32_t elsXmitRetry;
 202         uint32_t elsDelayRetry;
 203         uint32_t elsRcvDrop;
 204         uint32_t elsRcvFrame;
 205         uint32_t elsRcvRSCN;
 206         uint32_t elsRcvRNID;
 207         uint32_t elsRcvFARP;
 208         uint32_t elsRcvFARPR;
 209         uint32_t elsRcvFLOGI;
 210         uint32_t elsRcvPLOGI;
 211         uint32_t elsRcvADISC;
 212         uint32_t elsRcvPDISC;
 213         uint32_t elsRcvFAN;
 214         uint32_t elsRcvLOGO;
 215         uint32_t elsRcvPRLO;
 216         uint32_t elsRcvPRLI;
 217         uint32_t elsRcvLIRR;
 218         uint32_t elsRcvRLS;
 219         uint32_t elsRcvRPS;
 220         uint32_t elsRcvRPL;
 221         uint32_t elsRcvRRQ;
 222         uint32_t elsRcvRTV;
 223         uint32_t elsRcvECHO;
 224         uint32_t elsXmitFLOGI;
 225         uint32_t elsXmitFDISC;
 226         uint32_t elsXmitPLOGI;
 227         uint32_t elsXmitPRLI;
 228         uint32_t elsXmitADISC;
 229         uint32_t elsXmitLOGO;
 230         uint32_t elsXmitSCR;
 231         uint32_t elsXmitRNID;
 232         uint32_t elsXmitFARP;
 233         uint32_t elsXmitFARPR;
 234         uint32_t elsXmitACC;
 235         uint32_t elsXmitLSRJT;
 236
 237         uint32_t frameRcvBcast;
 238         uint32_t frameRcvMulti;
 239         uint32_t strayXmitCmpl;
 240         uint32_t frameXmitDelay;
 241         uint32_t xriCmdCmpl;
 242         uint32_t xriStatErr;
 243         uint32_t LinkUp;
 244         uint32_t LinkDown;
 245         uint32_t LinkMultiEvent;
 246         uint32_t NoRcvBuf;
 247         uint32_t fcpCmd;
 248         uint32_t fcpCmpl;
 249         uint32_t fcpRspErr;
 250         uint32_t fcpRemoteStop;
 251         uint32_t fcpPortRjt;
 252         uint32_t fcpPortBusy;
 253         uint32_t fcpError;
 254         uint32_t fcpLocalErr;
 255 };
 256
 257 struct lpfc_hba;
 258
 259
 260 enum discovery_state {
 261         LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 262         LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 263         LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 264         LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 265         LPFC_FDISC             =  8,    /* FDISC sent for vport */
 266         LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 267                                          * configured */
 268         LPFC_NS_REG            =  10,   /* Register with NameServer */
 269         LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 270         LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 271                                          * device authentication / discovery */
 272         LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 273         LPFC_VPORT_READY       =  32,
 274 };
 275
 276 enum hba_state {
 277         LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 278         LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 279         LPFC_INIT_START      =   2,   /* Initial state after board reset */
 280         LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 281         LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 282         LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 283         LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 284                                        * CLEAR_LA */
 285         LPFC_HBA_READY       =  32,
 286         LPFC_HBA_ERROR       =  -1
 287 };
 288
 289 struct lpfc_vport {
 290         struct lpfc_hba *phba;
 291         struct list_head listentry;
 292         uint8_t port_type;
 293 #define LPFC_PHYSICAL_PORT 1
 294 #define LPFC_NPIV_PORT  2
 295 #define LPFC_FABRIC_PORT 3
 296         enum discovery_state port_state;
 297
 298         uint16_t vpi;
 299         uint16_t vfi;
 300         uint8_t vpi_state;
 301 #define LPFC_VPI_REGISTERED     0x1
 302
 303         uint32_t fc_flag;       /* FC flags */
 304 /* Several of these flags are HBA centric and should be moved to
 305  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 306  */
 307 #define FC_PT2PT                0x1      /* pt2pt with no fabric */
 308 #define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 309 #define FC_DISC_TMO             0x4      /* Discovery timer running */
 310 #define FC_PUBLIC_LOOP          0x8      /* Public loop */
 311 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 312 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 313 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 314 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 315 #define FC_FABRIC               0x100    /* We are fabric attached */
 316 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 317 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 318 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 319 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 320 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 321 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 322 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 323 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 324 #define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 325 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 326 #define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 327 #define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 328 #define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 329 #define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 330
 331         uint32_t ct_flags;
 332 #define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 333 #define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 334 #define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 335 #define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 336 #define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 337
 338         struct list_head fc_nodes;
 339
 340         /* Keep counters for the number of entries in each list. */
 341         uint16_t fc_plogi_cnt;
 342         uint16_t fc_adisc_cnt;
 343         uint16_t fc_reglogin_cnt;
 344         uint16_t fc_prli_cnt;
 345         uint16_t fc_unmap_cnt;
 346         uint16_t fc_map_cnt;
 347         uint16_t fc_npr_cnt;
 348         uint16_t fc_unused_cnt;
 349         struct serv_parm fc_sparam;     /* buffer for our service parameters */
 350
 351         uint32_t fc_myDID;      /* fibre channel S_ID */
 352         uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 353         struct lpfc_name fabric_portname;
 354         struct lpfc_name fabric_nodename;
 355
 356         int32_t stopped;   /* HBA has not been restarted since last ERATT */
 357         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 358
 359         uint32_t num_disc_nodes;        /*in addition to hba_state */
 360
 361         uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 362         uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 363         uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 364         struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 365         struct lpfc_name fc_nodename;   /* fc nodename */
 366         struct lpfc_name fc_portname;   /* fc portname */
 367
 368         struct lpfc_work_evt disc_timeout_evt;
 369
 370         struct timer_list fc_disctmo;   /* Discovery rescue timer */
 371         uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 372         uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 373
 374         spinlock_t work_port_lock;
 375         uint32_t work_port_events; /* Timeout to be handled  */
 376 #define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 377 #define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 378 #define WORKER_FDMI_TMO                0x4      /* vport: FDMI timeout */
 379 #define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 380
 381 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 382 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 383 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 384 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 385 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 386 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 387
 388         struct timer_list fc_fdmitmo;
 389         struct timer_list els_tmofunc;
 390         struct timer_list delayed_disc_tmo;
 391
 392         int unreg_vpi_cmpl;
 393
 394         uint8_t load_flag;
 395 #define FC_LOADING              0x1     /* HBA in process of loading drvr */
 396 #define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 397         /* Vport Config Parameters */
 398         uint32_t cfg_scan_down;
 399         uint32_t cfg_lun_queue_depth;
 400         uint32_t cfg_nodev_tmo;
 401         uint32_t cfg_devloss_tmo;
 402         uint32_t cfg_restrict_login;
 403         uint32_t cfg_peer_port_login;
 404         uint32_t cfg_fcp_class;
 405         uint32_t cfg_use_adisc;
 406         uint32_t cfg_fdmi_on;
 407         uint32_t cfg_discovery_threads;
 408         uint32_t cfg_log_verbose;
 409         uint32_t cfg_max_luns;
 410         uint32_t cfg_enable_da_id;
 411         uint32_t cfg_max_scsicmpl_time;
 412         uint32_t cfg_tgt_queue_depth;
 413
 414         uint32_t dev_loss_tmo_changed;
 415
 416         struct fc_vport *fc_vport;
 417
 418 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 419         struct dentry *debug_disc_trc;
 420         struct dentry *debug_nodelist;
 421         struct dentry *vport_debugfs_root;
 422         struct lpfc_debugfs_trc *disc_trc;
 423         atomic_t disc_trc_cnt;
 424 #endif
 425         uint8_t stat_data_enabled;
 426         uint8_t stat_data_blocked;
 427         struct list_head rcv_buffer_list;
 428         unsigned long rcv_buffer_time_stamp;
 429         uint32_t vport_flag;
 430 #define STATIC_VPORT    1
 431 };
 432
 433 struct hbq_s {
 434         uint16_t entry_count;     /* Current number of HBQ slots */
 435         uint16_t buffer_count;    /* Current number of buffers posted */
 436         uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 437         uint32_t hbqPutIdx;       /* HBQ slot to use */
 438         uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 439         void    *hbq_virt;        /* Virtual ptr to this hbq */
 440         struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 441                                   /* Callback for HBQ buffer allocation */
 442         struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 443                                   /* Callback for HBQ buffer free */
 444         void               (*hbq_free_buffer) (struct lpfc_hba *,
 445                                                struct hbq_dmabuf *);
 446 };
 447
 448 #define LPFC_MAX_HBQS  4
 449 /* this matches the position in the lpfc_hbq_defs array */
 450 #define LPFC_ELS_HBQ    0
 451 #define LPFC_EXTRA_HBQ  1
 452
 453 enum hba_temp_state {
 454         HBA_NORMAL_TEMP,
 455         HBA_OVER_TEMP
 456 };
 457
 458 enum intr_type_t {
 459         NONE = 0,
 460         INTx,
 461         MSI,
 462         MSIX,
 463 };
 464
 465 struct unsol_rcv_ct_ctx {
 466         uint32_t ctxt_id;
 467         uint32_t SID;
 468         uint32_t flags;
 469 #define UNSOL_VALID     0x00000001
 470         uint16_t oxid;
 471         uint16_t rxid;
 472 };
 473
 474 #define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 475 #define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 476 #define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 477 #define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 478 #define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 479 #define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 480 #define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 481 #define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_16G
 482 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \
 483                                      (1 << LPFC_USER_LINK_SPEED_10G) | \
 484                                      (1 << LPFC_USER_LINK_SPEED_8G) | \
 485                                      (1 << LPFC_USER_LINK_SPEED_4G) | \
 486                                      (1 << LPFC_USER_LINK_SPEED_2G) | \
 487                                      (1 << LPFC_USER_LINK_SPEED_1G) | \
 488                                      (1 << LPFC_USER_LINK_SPEED_AUTO))
 489 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16"
 490
 491 enum nemb_type {
 492         nemb_mse = 1,
 493         nemb_hbd
 494 };
 495
 496 enum mbox_type {
 497         mbox_rd = 1,
 498         mbox_wr
 499 };
 500
 501 enum dma_type {
 502         dma_mbox = 1,
 503         dma_ebuf
 504 };
 505
 506 enum sta_type {
 507         sta_pre_addr = 1,
 508         sta_pos_addr
 509 };
 510
 511 struct lpfc_mbox_ext_buf_ctx {
 512         uint32_t state;
 513 #define LPFC_BSG_MBOX_IDLE              0
 514 #define LPFC_BSG_MBOX_HOST              1
 515 #define LPFC_BSG_MBOX_PORT              2
 516 #define LPFC_BSG_MBOX_DONE              3
 517 #define LPFC_BSG_MBOX_ABTS              4
 518         enum nemb_type nembType;
 519         enum mbox_type mboxType;
 520         uint32_t numBuf;
 521         uint32_t mbxTag;
 522         uint32_t seqNum;
 523         struct lpfc_dmabuf *mbx_dmabuf;
 524         struct list_head ext_dmabuf_list;
 525 };
 526
 527 struct lpfc_hba {
 528         /* SCSI interface function jump table entries */
 529         int (*lpfc_new_scsi_buf)
 530                 (struct lpfc_vport *, int);
 531         struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
 532                 (struct lpfc_hba *, struct lpfc_nodelist *);
 533         int (*lpfc_scsi_prep_dma_buf)
 534                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 535         void (*lpfc_scsi_unprep_dma_buf)
 536                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 537         void (*lpfc_release_scsi_buf)
 538                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 539         void (*lpfc_rampdown_queue_depth)
 540                 (struct lpfc_hba *);
 541         void (*lpfc_scsi_prep_cmnd)
 542                 (struct lpfc_vport *, struct lpfc_scsi_buf *,
 543                  struct lpfc_nodelist *);
 544
 545         /* IOCB interface function jump table entries */
 546         int (*__lpfc_sli_issue_iocb)
 547                 (struct lpfc_hba *, uint32_t,
 548                  struct lpfc_iocbq *, uint32_t);
 549         void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 550                          struct lpfc_iocbq *);
 551         int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 552         IOCB_t * (*lpfc_get_iocb_from_iocbq)
 553                 (struct lpfc_iocbq *);
 554         void (*lpfc_scsi_cmd_iocb_cmpl)
 555                 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 556
 557         /* MBOX interface function jump table entries */
 558         int (*lpfc_sli_issue_mbox)
 559                 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 560
 561         /* Slow-path IOCB process function jump table entries */
 562         void (*lpfc_sli_handle_slow_ring_event)
 563                 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 564                  uint32_t mask);
 565
 566         /* INIT device interface function jump table entries */
 567         int (*lpfc_sli_hbq_to_firmware)
 568                 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 569         int (*lpfc_sli_brdrestart)
 570                 (struct lpfc_hba *);
 571         int (*lpfc_sli_brdready)
 572                 (struct lpfc_hba *, uint32_t);
 573         void (*lpfc_handle_eratt)
 574                 (struct lpfc_hba *);
 575         void (*lpfc_stop_port)
 576                 (struct lpfc_hba *);
 577         int (*lpfc_hba_init_link)
 578                 (struct lpfc_hba *, uint32_t);
 579         int (*lpfc_hba_down_link)
 580                 (struct lpfc_hba *, uint32_t);
 581         int (*lpfc_selective_reset)
 582                 (struct lpfc_hba *);
 583
 584         int (*lpfc_bg_scsi_prep_dma_buf)
 585                 (struct lpfc_hba *, struct lpfc_scsi_buf *);
 586         /* Add new entries here */
 587
 588         /* SLI4 specific HBA data structure */
 589         struct lpfc_sli4_hba sli4_hba;
 590
 591         struct lpfc_sli sli;
 592         uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 593         uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 594         uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 595 #define LPFC_SLI3_HBQ_ENABLED           0x01
 596 #define LPFC_SLI3_NPIV_ENABLED          0x02
 597 #define LPFC_SLI3_VPORT_TEARDOWN        0x04
 598 #define LPFC_SLI3_CRP_ENABLED           0x08
 599 #define LPFC_SLI3_BG_ENABLED            0x20
 600 #define LPFC_SLI3_DSS_ENABLED           0x40
 601 #define LPFC_SLI4_PERFH_ENABLED         0x80
 602 #define LPFC_SLI4_PHWQ_ENABLED          0x100
 603         uint32_t iocb_cmd_size;
 604         uint32_t iocb_rsp_size;
 605
 606         enum hba_state link_state;
 607         uint32_t link_flag;     /* link state flags */
 608 #define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 609                                         /* This flag is set while issuing */
 610                                         /* INIT_LINK mailbox command */
 611 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 612 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 613
 614         uint32_t hba_flag;      /* hba generic flags */
 615 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 616 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 617 #define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 618 #define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 619 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 620 #define FCP_XRI_ABORT_EVENT     0x20
 621 #define ELS_XRI_ABORT_EVENT     0x40
 622 #define ASYNC_EVENT             0x80
 623 #define LINK_DISABLED           0x100 /* Link disabled by user */
 624 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 625 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 626 #define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 627 #define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 628 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 629 #define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 630 #define HBA_FCP_IOQ_FLUSH       0x8000 /* FCP I/O queues being flushed */
 631         uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 632         struct lpfc_dmabuf slim2p;
 633
 634         MAILBOX_t *mbox;
 635         uint32_t *mbox_ext;
 636         struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 637         uint32_t ha_copy;
 638         struct _PCB *pcb;
 639         struct _IOCB *IOCBs;
 640
 641         struct lpfc_dmabuf hbqslimp;
 642
 643         uint16_t pci_cfg_value;
 644
 645         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 646
 647         uint32_t fc_eventTag;   /* event tag for link attention */
 648         uint32_t link_events;
 649
 650         /* These fields used to be binfo */
 651         uint32_t fc_pref_DID;   /* preferred D_ID */
 652         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 653         uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 654         uint32_t fc_edtov;      /* E_D_TOV timer value */
 655         uint32_t fc_arbtov;     /* ARB_TOV timer value */
 656         uint32_t fc_ratov;      /* R_A_TOV timer value */
 657         uint32_t fc_rttov;      /* R_T_TOV timer value */
 658         uint32_t fc_altov;      /* AL_TOV timer value */
 659         uint32_t fc_crtov;      /* C_R_TOV timer value */
 660         uint32_t fc_citov;      /* C_I_TOV timer value */
 661
 662         struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 663         uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 664
 665         uint32_t lmt;
 666
 667         uint32_t fc_topology;   /* link topology, from LINK INIT */
 668
 669         struct lpfc_stats fc_stat;
 670
 671         struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 672         uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 673
 674         uint8_t  wwnn[8];
 675         uint8_t  wwpn[8];
 676         uint32_t RandomData[7];
 677
 678         /* HBA Config Parameters */
 679         uint32_t cfg_ack0;
 680         uint32_t cfg_enable_npiv;
 681         uint32_t cfg_enable_rrq;
 682         uint32_t cfg_topology;
 683         uint32_t cfg_link_speed;
 684 #define LPFC_FCF_FOV 1          /* Fast fcf failover */
 685 #define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 686         uint32_t cfg_fcf_failover_policy;
 687         uint32_t cfg_cr_delay;
 688         uint32_t cfg_cr_count;
 689         uint32_t cfg_multi_ring_support;
 690         uint32_t cfg_multi_ring_rctl;
 691         uint32_t cfg_multi_ring_type;
 692         uint32_t cfg_poll;
 693         uint32_t cfg_poll_tmo;
 694         uint32_t cfg_use_msi;
 695         uint32_t cfg_fcp_imax;
 696         uint32_t cfg_fcp_wq_count;
 697         uint32_t cfg_fcp_eq_count;
 698         uint32_t cfg_sg_seg_cnt;
 699         uint32_t cfg_prot_sg_seg_cnt;
 700         uint32_t cfg_sg_dma_buf_size;
 701         uint64_t cfg_soft_wwnn;
 702         uint64_t cfg_soft_wwpn;
 703         uint32_t cfg_hba_queue_depth;
 704         uint32_t cfg_enable_hba_reset;
 705         uint32_t cfg_enable_hba_heartbeat;
 706         uint32_t cfg_enable_bg;
 707         uint32_t cfg_hostmem_hgp;
 708         uint32_t cfg_log_verbose;
 709         uint32_t cfg_aer_support;
 710         uint32_t cfg_sriov_nr_virtfn;
 711         uint32_t cfg_iocb_cnt;
 712         uint32_t cfg_suppress_link_up;
 713 #define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 714 #define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 715 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 716         uint32_t cfg_enable_dss;
 717         lpfc_vpd_t vpd;         /* vital product data */
 718
 719         struct pci_dev *pcidev;
 720         struct list_head      work_list;
 721         uint32_t              work_ha;      /* Host Attention Bits for WT */
 722         uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 723         uint32_t              work_hs;      /* HS stored in case of ERRAT */
 724         uint32_t              work_status[2]; /* Extra status from SLIM */
 725
 726         wait_queue_head_t    work_waitq;
 727         struct task_struct   *worker_thread;
 728         unsigned long data_flags;
 729
 730         uint32_t hbq_in_use;            /* HBQs in use flag */
 731         struct list_head rb_pend_list;  /* Received buffers to be processed */
 732         uint32_t hbq_count;             /* Count of configured HBQs */
 733         struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 734
 735         uint32_t fcp_qidx;              /* next work queue to post work to */
 736
 737         unsigned long pci_bar0_map;     /* Physical address for PCI BAR0 */
 738         unsigned long pci_bar1_map;     /* Physical address for PCI BAR1 */
 739         unsigned long pci_bar2_map;     /* Physical address for PCI BAR2 */
 740         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 741                                            PCI BAR0 */
 742         void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 743                                             PCI BAR2 */
 744
 745         void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 746         void __iomem *HAregaddr;        /* virtual address for host attn reg */
 747         void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 748         void __iomem *HSregaddr;        /* virtual address for host status
 749                                            reg */
 750         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 751
 752         struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 753         struct lpfc_pgp   *port_gp;
 754         uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 755         uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 756
 757         int brd_no;                     /* FC board number */
 758         char SerialNumber[32];          /* adapter Serial Number */
 759         char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 760         char ModelDesc[256];            /* Model Description */
 761         char ModelName[80];             /* Model Name */
 762         char ProgramType[256];          /* Program Type */
 763         char Port[20];                  /* Port No */
 764         uint8_t vpd_flag;               /* VPD data flag */
 765
 766 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 767 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 768 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 769 #define VPD_PORT            0x8         /* valid vpd port data */
 770 #define VPD_MASK            0xf         /* mask for any vpd data */
 771
 772         uint8_t soft_wwn_enable;
 773
 774         struct timer_list fcp_poll_timer;
 775         struct timer_list eratt_poll;
 776
 777         /*
 778          * stat  counters
 779          */
 780         uint64_t fc4InputRequests;
 781         uint64_t fc4OutputRequests;
 782         uint64_t fc4ControlRequests;
 783         uint64_t bg_guard_err_cnt;
 784         uint64_t bg_apptag_err_cnt;
 785         uint64_t bg_reftag_err_cnt;
 786
 787         /* fastpath list. */
 788         spinlock_t scsi_buf_list_lock;
 789         struct list_head lpfc_scsi_buf_list;
 790         uint32_t total_scsi_bufs;
 791         struct list_head lpfc_iocb_list;
 792         uint32_t total_iocbq_bufs;
 793         struct list_head active_rrq_list;
 794         spinlock_t hbalock;
 795
 796         /* pci_mem_pools */
 797         struct pci_pool *lpfc_scsi_dma_buf_pool;
 798         struct pci_pool *lpfc_mbuf_pool;
 799         struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
 800         struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
 801         struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 802         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 803
 804         mempool_t *mbox_mem_pool;
 805         mempool_t *nlp_mem_pool;
 806         mempool_t *rrq_pool;
 807
 808         struct fc_host_statistics link_stats;
 809         enum intr_type_t intr_type;
 810         uint32_t intr_mode;
 811 #define LPFC_INTR_ERROR 0xFFFFFFFF
 812         struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
 813
 814         struct list_head port_list;
 815         struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
 816         uint16_t max_vpi;               /* Maximum virtual nports */
 817 #define LPFC_MAX_VPI 0xFFFF             /* Max number of VPI supported */
 818         uint16_t max_vports;            /*
 819                                          * For IOV HBAs max_vpi can change
 820                                          * after a reset. max_vports is max
 821                                          * number of vports present. This can
 822                                          * be greater than max_vpi.
 823                                          */
 824         uint16_t vpi_base;
 825         uint16_t vfi_base;
 826         unsigned long *vpi_bmask;       /* vpi allocation table */
 827         uint16_t *vpi_ids;
 828         uint16_t vpi_count;
 829         struct list_head lpfc_vpi_blk_list;
 830
 831         /* Data structure used by fabric iocb scheduler */
 832         struct list_head fabric_iocb_list;
 833         atomic_t fabric_iocb_count;
 834         struct timer_list fabric_block_timer;
 835         unsigned long bit_flags;
 836 #define FABRIC_COMANDS_BLOCKED  0
 837         atomic_t num_rsrc_err;
 838         atomic_t num_cmd_success;
 839         unsigned long last_rsrc_error_time;
 840         unsigned long last_ramp_down_time;
 841         unsigned long last_ramp_up_time;
 842 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 843         struct dentry *hba_debugfs_root;
 844         atomic_t debugfs_vport_count;
 845         struct dentry *debug_hbqinfo;
 846         struct dentry *debug_dumpHostSlim;
 847         struct dentry *debug_dumpHBASlim;
 848         struct dentry *debug_dumpData;   /* BlockGuard BPL */
 849         struct dentry *debug_dumpDif;    /* BlockGuard BPL */
 850         struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
 851         struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
 852         struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
 853         struct dentry *debug_writeGuard; /* inject write guard_tag errors */
 854         struct dentry *debug_writeApp;   /* inject write app_tag errors */
 855         struct dentry *debug_writeRef;   /* inject write ref_tag errors */
 856         struct dentry *debug_readGuard;  /* inject read guard_tag errors */
 857         struct dentry *debug_readApp;    /* inject read app_tag errors */
 858         struct dentry *debug_readRef;    /* inject read ref_tag errors */
 859
 860         /* T10 DIF error injection */
 861         uint32_t lpfc_injerr_wgrd_cnt;
 862         uint32_t lpfc_injerr_wapp_cnt;
 863         uint32_t lpfc_injerr_wref_cnt;
 864         uint32_t lpfc_injerr_rgrd_cnt;
 865         uint32_t lpfc_injerr_rapp_cnt;
 866         uint32_t lpfc_injerr_rref_cnt;
 867         uint32_t lpfc_injerr_nportid;
 868         struct lpfc_name lpfc_injerr_wwpn;
 869         sector_t lpfc_injerr_lba;
 870 #define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
 871
 872         struct dentry *debug_slow_ring_trc;
 873         struct lpfc_debugfs_trc *slow_ring_trc;
 874         atomic_t slow_ring_trc_cnt;
 875         /* iDiag debugfs sub-directory */
 876         struct dentry *idiag_root;
 877         struct dentry *idiag_pci_cfg;
 878         struct dentry *idiag_bar_acc;
 879         struct dentry *idiag_que_info;
 880         struct dentry *idiag_que_acc;
 881         struct dentry *idiag_drb_acc;
 882         struct dentry *idiag_ctl_acc;
 883         struct dentry *idiag_mbx_acc;
 884         struct dentry *idiag_ext_acc;
 885 #endif
 886
 887         /* Used for deferred freeing of ELS data buffers */
 888         struct list_head elsbuf;
 889         int elsbuf_cnt;
 890         int elsbuf_prev_cnt;
 891
 892         uint8_t temp_sensor_support;
 893         /* Fields used for heart beat. */
 894         unsigned long last_completion_time;
 895         unsigned long skipped_hb;
 896         struct timer_list hb_tmofunc;
 897         uint8_t hb_outstanding;
 898         struct timer_list rrq_tmr;
 899         enum hba_temp_state over_temp_state;
 900         /* ndlp reference management */
 901         spinlock_t ndlp_lock;
 902         /*
 903          * Following bit will be set for all buffer tags which are not
 904          * associated with any HBQ.
 905          */
 906 #define QUE_BUFTAG_BIT  (1<<31)
 907         uint32_t buffer_tag_count;
 908         int wait_4_mlo_maint_flg;
 909         wait_queue_head_t wait_4_mlo_m_q;
 910         /* data structure used for latency data collection */
 911 #define LPFC_NO_BUCKET     0
 912 #define LPFC_LINEAR_BUCKET 1
 913 #define LPFC_POWER2_BUCKET 2
 914         uint8_t  bucket_type;
 915         uint32_t bucket_base;
 916         uint32_t bucket_step;
 917
 918 /* Maximum number of events that can be outstanding at any time*/
 919 #define LPFC_MAX_EVT_COUNT 512
 920         atomic_t fast_event_count;
 921         uint32_t fcoe_eventtag;
 922         uint32_t fcoe_eventtag_at_fcf_scan;
 923         uint32_t fcoe_cvl_eventtag;
 924         uint32_t fcoe_cvl_eventtag_attn;
 925         struct lpfc_fcf fcf;
 926         uint8_t fc_map[3];
 927         uint8_t valid_vlan;
 928         uint16_t vlan_id;
 929         struct list_head fcf_conn_rec_list;
 930
 931         spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
 932         struct list_head ct_ev_waiters;
 933         struct unsol_rcv_ct_ctx ct_ctx[64];
 934         uint32_t ctx_idx;
 935
 936         uint8_t menlo_flag;     /* menlo generic flags */
 937 #define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
 938         uint32_t iocb_cnt;
 939         uint32_t iocb_max;
 940         atomic_t sdev_cnt;
 941         uint8_t fips_spec_rev;
 942         uint8_t fips_level;
 943 };
 944
 945 static inline struct Scsi_Host *
 946 lpfc_shost_from_vport(struct lpfc_vport *vport)
 947 {
 948         return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
 949 }
 950
 951 static inline void
 952 lpfc_set_loopback_flag(struct lpfc_hba *phba)
 953 {
 954         if (phba->cfg_topology == FLAGS_LOCAL_LB)
 955                 phba->link_flag |= LS_LOOPBACK_MODE;
 956         else
 957                 phba->link_flag &= ~LS_LOOPBACK_MODE;
 958 }
 959
 960 static inline int
 961 lpfc_is_link_up(struct lpfc_hba *phba)
 962 {
 963         return  phba->link_state == LPFC_LINK_UP ||
 964                 phba->link_state == LPFC_CLEAR_LA ||
 965                 phba->link_state == LPFC_HBA_READY;
 966 }
 967
 968 static inline void
 969 lpfc_worker_wake_up(struct lpfc_hba *phba)
 970 {
 971         /* Set the lpfc data pending flag */
 972         set_bit(LPFC_DATA_READY, &phba->data_flags);
 973
 974         /* Wake up worker thread */
 975         wake_up(&phba->work_waitq);
 976         return;
 977 }
 978
 979 static inline int
 980 lpfc_readl(void __iomem *addr, uint32_t *data)
 981 {
 982         uint32_t temp;
 983         temp = readl(addr);
 984         if (temp == 0xffffffff)
 985                 return -EIO;
 986         *data = temp;
 987         return 0;
 988 }
 989
 990 static inline int
 991 lpfc_sli_read_hs(struct lpfc_hba *phba)
 992 {
 993         /*
 994          * There was a link/board error. Read the status register to retrieve
 995          * the error event and process it.
 996          */
 997         phba->sli.slistat.err_attn_event++;
 998
 999         /* Save status info and check for unplug error */
1000         if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1001                 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1002                 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1003                 return -EIO;
1004         }
1005
1006         /* Clear chip Host Attention error bit */
1007         writel(HA_ERATT, phba->HAregaddr);
1008         readl(phba->HAregaddr); /* flush */
1009         phba->pport->stopped = 1;
1010
1011         return 0;
1012 }