drivers/scsi/lpfc/lpfc.h

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This source file includes following definitions.
lpfc_shost_from_vport
lpfc_set_loopback_flag
lpfc_is_link_up
lpfc_worker_wake_up
lpfc_readl
lpfc_sli_read_hs
lpfc_phba_elsring
lpfc_sli4_mod_hba_eq_delay
   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23 
  24 #include <scsi/scsi_host.h>
  25 #include <linux/ktime.h>
  26 #include <linux/workqueue.h>
  27 
  28 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  29 #define CONFIG_SCSI_LPFC_DEBUG_FS
  30 #endif
  31 
  32 struct lpfc_sli2_slim;
  33 
  34 #define ELX_MODEL_NAME_SIZE     80
  35 
  36 #define LPFC_PCI_DEV_LP         0x1
  37 #define LPFC_PCI_DEV_OC         0x2
  38 
  39 #define LPFC_SLI_REV2           2
  40 #define LPFC_SLI_REV3           3
  41 #define LPFC_SLI_REV4           4
  42 
  43 #define LPFC_MAX_TARGET         4096    /* max number of targets supported */
  44 #define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
  45                                            requests */
  46 #define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
  47                                            the NameServer  before giving up. */
  48 #define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
  49 #define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */
  50 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128       /* sg element count per scsi
  51                 cmnd for menlo needs nearly twice as for firmware
  52                 downloads using bsg */
  53 
  54 #define LPFC_DEFAULT_XPSGL_SIZE 256
  55 #define LPFC_MAX_SG_TABLESIZE   0xffff
  56 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
  57 #define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
  58 #define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
  59 #define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
  60 #define LPFC_MIN_SG_SEG_CNT     32      /* sg element count per scsi cmnd */
  61 #define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
  62 #define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
  63 #define LPFC_MAX_NVME_SEG_CNT   256     /* max SGL element cnt per NVME cmnd */
  64 
  65 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  66 #define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
  67 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  68 #define LPFC_VNAME_LEN          100     /* vport symbolic name length */
  69 #define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
  70 #define LPFC_MIN_TGT_QDEPTH     10
  71 #define LPFC_MAX_TGT_QDEPTH     0xFFFF
  72 
  73 #define  LPFC_MAX_BUCKET_COUNT 20       /* Maximum no. of buckets for stat data
  74                                            collection. */
  75 /*
  76  * Following time intervals are used of adjusting SCSI device
  77  * queue depths when there are driver resource error or Firmware
  78  * resource error.
  79  */
  80 /* 1 Second */
  81 #define QUEUE_RAMP_DOWN_INTERVAL        (msecs_to_jiffies(1000 * 1))
  82 
  83 /* Number of exchanges reserved for discovery to complete */
  84 #define LPFC_DISC_IOCB_BUFF_COUNT 20
  85 
  86 #define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
  87 #define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */
  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_nvmet_ctxbuf {
 145         struct list_head list;
 146         struct lpfc_nvmet_rcv_ctx *context;
 147         struct lpfc_iocbq *iocbq;
 148         struct lpfc_sglq *sglq;
 149         struct work_struct defer_work;
 150 };
 151 
 152 struct lpfc_dma_pool {
 153         struct lpfc_dmabuf   *elements;
 154         uint32_t    max_count;
 155         uint32_t    current_count;
 156 };
 157 
 158 struct hbq_dmabuf {
 159         struct lpfc_dmabuf hbuf;
 160         struct lpfc_dmabuf dbuf;
 161         uint16_t total_size;
 162         uint16_t bytes_recv;
 163         uint32_t tag;
 164         struct lpfc_cq_event cq_event;
 165         unsigned long time_stamp;
 166         void *context;
 167 };
 168 
 169 struct rqb_dmabuf {
 170         struct lpfc_dmabuf hbuf;
 171         struct lpfc_dmabuf dbuf;
 172         uint16_t total_size;
 173         uint16_t bytes_recv;
 174         uint16_t idx;
 175         struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
 176         struct lpfc_queue *drq;   /* ptr to associated Data RQ */
 177 };
 178 
 179 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 180 #define MEM_PRI         0x100
 181 
 182 
 183 /****************************************************************************/
 184 /*      Device VPD save area                                                */
 185 /****************************************************************************/
 186 typedef struct lpfc_vpd {
 187         uint32_t status;        /* vpd status value */
 188         uint32_t length;        /* number of bytes actually returned */
 189         struct {
 190                 uint32_t rsvd1; /* Revision numbers */
 191                 uint32_t biuRev;
 192                 uint32_t smRev;
 193                 uint32_t smFwRev;
 194                 uint32_t endecRev;
 195                 uint16_t rBit;
 196                 uint8_t fcphHigh;
 197                 uint8_t fcphLow;
 198                 uint8_t feaLevelHigh;
 199                 uint8_t feaLevelLow;
 200                 uint32_t postKernRev;
 201                 uint32_t opFwRev;
 202                 uint8_t opFwName[16];
 203                 uint32_t sli1FwRev;
 204                 uint8_t sli1FwName[16];
 205                 uint32_t sli2FwRev;
 206                 uint8_t sli2FwName[16];
 207         } rev;
 208         struct {
 209 #ifdef __BIG_ENDIAN_BITFIELD
 210                 uint32_t rsvd3  :19;  /* Reserved                             */
 211                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 212                 uint32_t rsvd2  : 3;  /* Reserved                             */
 213                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 214                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 215                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 216                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 217                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 218                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 219                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 220                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 221                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 222 #else   /*  __LITTLE_ENDIAN */
 223                 uint32_t cmr    : 1;  /* Configure Max RPIs                   */
 224                 uint32_t cmx    : 1;  /* Configure Max XRIs                   */
 225                 uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
 226                 uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 227                 uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 228                 uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 229                 uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 230                 uint32_t cmv    : 1;  /* Configure Max VPIs                   */
 231                 uint32_t cbg    : 1;  /* Configure BlockGuard                 */
 232                 uint32_t rsvd2  : 3;  /* Reserved                             */
 233                 uint32_t cdss   : 1;  /* Configure Data Security SLI          */
 234                 uint32_t rsvd3  :19;  /* Reserved                             */
 235 #endif
 236         } sli3Feat;
 237 } lpfc_vpd_t;
 238 
 239 
 240 /*
 241  * lpfc stat counters
 242  */
 243 struct lpfc_stats {
 244         /* Statistics for ELS commands */
 245         uint32_t elsLogiCol;
 246         uint32_t elsRetryExceeded;
 247         uint32_t elsXmitRetry;
 248         uint32_t elsDelayRetry;
 249         uint32_t elsRcvDrop;
 250         uint32_t elsRcvFrame;
 251         uint32_t elsRcvRSCN;
 252         uint32_t elsRcvRNID;
 253         uint32_t elsRcvFARP;
 254         uint32_t elsRcvFARPR;
 255         uint32_t elsRcvFLOGI;
 256         uint32_t elsRcvPLOGI;
 257         uint32_t elsRcvADISC;
 258         uint32_t elsRcvPDISC;
 259         uint32_t elsRcvFAN;
 260         uint32_t elsRcvLOGO;
 261         uint32_t elsRcvPRLO;
 262         uint32_t elsRcvPRLI;
 263         uint32_t elsRcvLIRR;
 264         uint32_t elsRcvRLS;
 265         uint32_t elsRcvRPS;
 266         uint32_t elsRcvRPL;
 267         uint32_t elsRcvRRQ;
 268         uint32_t elsRcvRTV;
 269         uint32_t elsRcvECHO;
 270         uint32_t elsRcvLCB;
 271         uint32_t elsRcvRDP;
 272         uint32_t elsXmitFLOGI;
 273         uint32_t elsXmitFDISC;
 274         uint32_t elsXmitPLOGI;
 275         uint32_t elsXmitPRLI;
 276         uint32_t elsXmitADISC;
 277         uint32_t elsXmitLOGO;
 278         uint32_t elsXmitSCR;
 279         uint32_t elsXmitRSCN;
 280         uint32_t elsXmitRNID;
 281         uint32_t elsXmitFARP;
 282         uint32_t elsXmitFARPR;
 283         uint32_t elsXmitACC;
 284         uint32_t elsXmitLSRJT;
 285 
 286         uint32_t frameRcvBcast;
 287         uint32_t frameRcvMulti;
 288         uint32_t strayXmitCmpl;
 289         uint32_t frameXmitDelay;
 290         uint32_t xriCmdCmpl;
 291         uint32_t xriStatErr;
 292         uint32_t LinkUp;
 293         uint32_t LinkDown;
 294         uint32_t LinkMultiEvent;
 295         uint32_t NoRcvBuf;
 296         uint32_t fcpCmd;
 297         uint32_t fcpCmpl;
 298         uint32_t fcpRspErr;
 299         uint32_t fcpRemoteStop;
 300         uint32_t fcpPortRjt;
 301         uint32_t fcpPortBusy;
 302         uint32_t fcpError;
 303         uint32_t fcpLocalErr;
 304 };
 305 
 306 struct lpfc_hba;
 307 
 308 
 309 enum discovery_state {
 310         LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 311         LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 312         LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 313         LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 314         LPFC_FDISC             =  8,    /* FDISC sent for vport */
 315         LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 316                                          * configured */
 317         LPFC_NS_REG            =  10,   /* Register with NameServer */
 318         LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 319         LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 320                                          * device authentication / discovery */
 321         LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 322         LPFC_VPORT_READY       =  32,
 323 };
 324 
 325 enum hba_state {
 326         LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 327         LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 328         LPFC_INIT_START      =   2,   /* Initial state after board reset */
 329         LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 330         LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 331         LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 332         LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 333                                        * CLEAR_LA */
 334         LPFC_HBA_READY       =  32,
 335         LPFC_HBA_ERROR       =  -1
 336 };
 337 
 338 struct lpfc_trunk_link_state {
 339         enum hba_state state;
 340         uint8_t fault;
 341 };
 342 
 343 struct lpfc_trunk_link  {
 344         struct lpfc_trunk_link_state link0,
 345                                      link1,
 346                                      link2,
 347                                      link3;
 348 };
 349 
 350 struct lpfc_vport {
 351         struct lpfc_hba *phba;
 352         struct list_head listentry;
 353         uint8_t port_type;
 354 #define LPFC_PHYSICAL_PORT 1
 355 #define LPFC_NPIV_PORT  2
 356 #define LPFC_FABRIC_PORT 3
 357         enum discovery_state port_state;
 358 
 359         uint16_t vpi;
 360         uint16_t vfi;
 361         uint8_t vpi_state;
 362 #define LPFC_VPI_REGISTERED     0x1
 363 
 364         uint32_t fc_flag;       /* FC flags */
 365 /* Several of these flags are HBA centric and should be moved to
 366  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 367  */
 368 #define FC_PT2PT                0x1      /* pt2pt with no fabric */
 369 #define FC_PT2PT_PLOGI          0x2      /* pt2pt initiate PLOGI */
 370 #define FC_DISC_TMO             0x4      /* Discovery timer running */
 371 #define FC_PUBLIC_LOOP          0x8      /* Public loop */
 372 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
 373 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
 374 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
 375 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
 376 #define FC_FABRIC               0x100    /* We are fabric attached */
 377 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 378 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
 379 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 380 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
 381 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
 382 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
 383 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
 384 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
 385 #define FC_RSCN_DEFERRED        0x100000 /* A deferred RSCN being processed */
 386 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 387 #define FC_VPORT_CVL_RCVD       0x400000 /* VLink failed due to CVL      */
 388 #define FC_VFI_REGISTERED       0x800000 /* VFI is registered */
 389 #define FC_FDISC_COMPLETED      0x1000000/* FDISC completed */
 390 #define FC_DISC_DELAYED         0x2000000/* Delay NPort discovery */
 391 
 392         uint32_t ct_flags;
 393 #define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
 394 #define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
 395 #define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
 396 #define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
 397 #define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
 398 
 399         struct list_head fc_nodes;
 400 
 401         /* Keep counters for the number of entries in each list. */
 402         uint16_t fc_plogi_cnt;
 403         uint16_t fc_adisc_cnt;
 404         uint16_t fc_reglogin_cnt;
 405         uint16_t fc_prli_cnt;
 406         uint16_t fc_unmap_cnt;
 407         uint16_t fc_map_cnt;
 408         uint16_t fc_npr_cnt;
 409         uint16_t fc_unused_cnt;
 410         struct serv_parm fc_sparam;     /* buffer for our service parameters */
 411 
 412         uint32_t fc_myDID;      /* fibre channel S_ID */
 413         uint32_t fc_prevDID;    /* previous fibre channel S_ID */
 414         struct lpfc_name fabric_portname;
 415         struct lpfc_name fabric_nodename;
 416 
 417         int32_t stopped;   /* HBA has not been restarted since last ERATT */
 418         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 419 
 420         uint32_t num_disc_nodes;        /* in addition to hba_state */
 421         uint32_t gidft_inp;             /* cnt of outstanding GID_FTs */
 422 
 423         uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
 424         uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
 425         uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
 426         struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 427         struct lpfc_name fc_nodename;   /* fc nodename */
 428         struct lpfc_name fc_portname;   /* fc portname */
 429 
 430         struct lpfc_work_evt disc_timeout_evt;
 431 
 432         struct timer_list fc_disctmo;   /* Discovery rescue timer */
 433         uint8_t fc_ns_retry;    /* retries for fabric nameserver */
 434         uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
 435 
 436         spinlock_t work_port_lock;
 437         uint32_t work_port_events; /* Timeout to be handled  */
 438 #define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
 439 #define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
 440 #define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */
 441 
 442 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
 443 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
 444 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
 445 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
 446 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
 447 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
 448 
 449         struct timer_list els_tmofunc;
 450         struct timer_list delayed_disc_tmo;
 451 
 452         int unreg_vpi_cmpl;
 453 
 454         uint8_t load_flag;
 455 #define FC_LOADING              0x1     /* HBA in process of loading drvr */
 456 #define FC_UNLOADING            0x2     /* HBA in process of unloading drvr */
 457 #define FC_ALLOW_FDMI           0x4     /* port is ready for FDMI requests */
 458         /* Vport Config Parameters */
 459         uint32_t cfg_scan_down;
 460         uint32_t cfg_lun_queue_depth;
 461         uint32_t cfg_nodev_tmo;
 462         uint32_t cfg_devloss_tmo;
 463         uint32_t cfg_restrict_login;
 464         uint32_t cfg_peer_port_login;
 465         uint32_t cfg_fcp_class;
 466         uint32_t cfg_use_adisc;
 467         uint32_t cfg_discovery_threads;
 468         uint32_t cfg_log_verbose;
 469         uint32_t cfg_enable_fc4_type;
 470         uint32_t cfg_max_luns;
 471         uint32_t cfg_enable_da_id;
 472         uint32_t cfg_max_scsicmpl_time;
 473         uint32_t cfg_tgt_queue_depth;
 474         uint32_t cfg_first_burst_size;
 475         uint32_t dev_loss_tmo_changed;
 476 
 477         struct fc_vport *fc_vport;
 478 
 479 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 480         struct dentry *debug_disc_trc;
 481         struct dentry *debug_nodelist;
 482         struct dentry *debug_nvmestat;
 483         struct dentry *debug_scsistat;
 484         struct dentry *debug_nvmektime;
 485         struct dentry *debug_cpucheck;
 486         struct dentry *vport_debugfs_root;
 487         struct lpfc_debugfs_trc *disc_trc;
 488         atomic_t disc_trc_cnt;
 489 #endif
 490         uint8_t stat_data_enabled;
 491         uint8_t stat_data_blocked;
 492         struct list_head rcv_buffer_list;
 493         unsigned long rcv_buffer_time_stamp;
 494         uint32_t vport_flag;
 495 #define STATIC_VPORT    1
 496 #define FAWWPN_SET      2
 497 #define FAWWPN_PARAM_CHG        4
 498 
 499         uint16_t fdmi_num_disc;
 500         uint32_t fdmi_hba_mask;
 501         uint32_t fdmi_port_mask;
 502 
 503         /* There is a single nvme instance per vport. */
 504         struct nvme_fc_local_port *localport;
 505         uint8_t  nvmei_support; /* driver supports NVME Initiator */
 506         uint32_t last_fcp_wqidx;
 507         uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
 508 };
 509 
 510 struct hbq_s {
 511         uint16_t entry_count;     /* Current number of HBQ slots */
 512         uint16_t buffer_count;    /* Current number of buffers posted */
 513         uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 514         uint32_t hbqPutIdx;       /* HBQ slot to use */
 515         uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 516         void    *hbq_virt;        /* Virtual ptr to this hbq */
 517         struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 518                                   /* Callback for HBQ buffer allocation */
 519         struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 520                                   /* Callback for HBQ buffer free */
 521         void               (*hbq_free_buffer) (struct lpfc_hba *,
 522                                                struct hbq_dmabuf *);
 523 };
 524 
 525 /* this matches the position in the lpfc_hbq_defs array */
 526 #define LPFC_ELS_HBQ    0
 527 #define LPFC_MAX_HBQS   1
 528 
 529 enum hba_temp_state {
 530         HBA_NORMAL_TEMP,
 531         HBA_OVER_TEMP
 532 };
 533 
 534 enum intr_type_t {
 535         NONE = 0,
 536         INTx,
 537         MSI,
 538         MSIX,
 539 };
 540 
 541 #define LPFC_CT_CTX_MAX         64
 542 struct unsol_rcv_ct_ctx {
 543         uint32_t ctxt_id;
 544         uint32_t SID;
 545         uint32_t valid;
 546 #define UNSOL_INVALID           0
 547 #define UNSOL_VALID             1
 548         uint16_t oxid;
 549         uint16_t rxid;
 550 };
 551 
 552 #define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
 553 #define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
 554 #define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
 555 #define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
 556 #define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
 557 #define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
 558 #define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
 559 #define LPFC_USER_LINK_SPEED_32G        32      /* 32 Gigabaud */
 560 #define LPFC_USER_LINK_SPEED_64G        64      /* 64 Gigabaud */
 561 #define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_64G
 562 
 563 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
 564 
 565 enum nemb_type {
 566         nemb_mse = 1,
 567         nemb_hbd
 568 };
 569 
 570 enum mbox_type {
 571         mbox_rd = 1,
 572         mbox_wr
 573 };
 574 
 575 enum dma_type {
 576         dma_mbox = 1,
 577         dma_ebuf
 578 };
 579 
 580 enum sta_type {
 581         sta_pre_addr = 1,
 582         sta_pos_addr
 583 };
 584 
 585 struct lpfc_mbox_ext_buf_ctx {
 586         uint32_t state;
 587 #define LPFC_BSG_MBOX_IDLE              0
 588 #define LPFC_BSG_MBOX_HOST              1
 589 #define LPFC_BSG_MBOX_PORT              2
 590 #define LPFC_BSG_MBOX_DONE              3
 591 #define LPFC_BSG_MBOX_ABTS              4
 592         enum nemb_type nembType;
 593         enum mbox_type mboxType;
 594         uint32_t numBuf;
 595         uint32_t mbxTag;
 596         uint32_t seqNum;
 597         struct lpfc_dmabuf *mbx_dmabuf;
 598         struct list_head ext_dmabuf_list;
 599 };
 600 
 601 struct lpfc_epd_pool {
 602         /* Expedite pool */
 603         struct list_head list;
 604         u32 count;
 605         spinlock_t lock;        /* lock for expedite pool */
 606 };
 607 
 608 struct lpfc_ras_fwlog {
 609         uint8_t *fwlog_buff;
 610         uint32_t fw_buffcount; /* Buffer size posted to FW */
 611 #define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
 612 #define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
 613 #define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
 614 #define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
 615         uint32_t fw_loglevel; /* Log level set */
 616         struct lpfc_dmabuf lwpd;
 617         struct list_head fwlog_buff_list;
 618 
 619         /* RAS support status on adapter */
 620         bool ras_hwsupport; /* RAS Support available on HW or not */
 621         bool ras_enabled;   /* Ras Enabled for the function */
 622 #define LPFC_RAS_DISABLE_LOGGING 0x00
 623 #define LPFC_RAS_ENABLE_LOGGING 0x01
 624         bool ras_active;    /* RAS logging running state */
 625 };
 626 
 627 struct lpfc_hba {
 628         /* SCSI interface function jump table entries */
 629         struct lpfc_io_buf * (*lpfc_get_scsi_buf)
 630                 (struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 631                 struct scsi_cmnd *cmnd);
 632         int (*lpfc_scsi_prep_dma_buf)
 633                 (struct lpfc_hba *, struct lpfc_io_buf *);
 634         void (*lpfc_scsi_unprep_dma_buf)
 635                 (struct lpfc_hba *, struct lpfc_io_buf *);
 636         void (*lpfc_release_scsi_buf)
 637                 (struct lpfc_hba *, struct lpfc_io_buf *);
 638         void (*lpfc_rampdown_queue_depth)
 639                 (struct lpfc_hba *);
 640         void (*lpfc_scsi_prep_cmnd)
 641                 (struct lpfc_vport *, struct lpfc_io_buf *,
 642                  struct lpfc_nodelist *);
 643 
 644         /* IOCB interface function jump table entries */
 645         int (*__lpfc_sli_issue_iocb)
 646                 (struct lpfc_hba *, uint32_t,
 647                  struct lpfc_iocbq *, uint32_t);
 648         void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 649                          struct lpfc_iocbq *);
 650         int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 651         IOCB_t * (*lpfc_get_iocb_from_iocbq)
 652                 (struct lpfc_iocbq *);
 653         void (*lpfc_scsi_cmd_iocb_cmpl)
 654                 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 655 
 656         /* MBOX interface function jump table entries */
 657         int (*lpfc_sli_issue_mbox)
 658                 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 659 
 660         /* Slow-path IOCB process function jump table entries */
 661         void (*lpfc_sli_handle_slow_ring_event)
 662                 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 663                  uint32_t mask);
 664 
 665         /* INIT device interface function jump table entries */
 666         int (*lpfc_sli_hbq_to_firmware)
 667                 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 668         int (*lpfc_sli_brdrestart)
 669                 (struct lpfc_hba *);
 670         int (*lpfc_sli_brdready)
 671                 (struct lpfc_hba *, uint32_t);
 672         void (*lpfc_handle_eratt)
 673                 (struct lpfc_hba *);
 674         void (*lpfc_stop_port)
 675                 (struct lpfc_hba *);
 676         int (*lpfc_hba_init_link)
 677                 (struct lpfc_hba *, uint32_t);
 678         int (*lpfc_hba_down_link)
 679                 (struct lpfc_hba *, uint32_t);
 680         int (*lpfc_selective_reset)
 681                 (struct lpfc_hba *);
 682 
 683         int (*lpfc_bg_scsi_prep_dma_buf)
 684                 (struct lpfc_hba *, struct lpfc_io_buf *);
 685         /* Add new entries here */
 686 
 687         /* expedite pool */
 688         struct lpfc_epd_pool epd_pool;
 689 
 690         /* SLI4 specific HBA data structure */
 691         struct lpfc_sli4_hba sli4_hba;
 692 
 693         struct workqueue_struct *wq;
 694         struct delayed_work     eq_delay_work;
 695 
 696         struct lpfc_sli sli;
 697         uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 698         uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
 699         uint32_t sli3_options;          /* Mask of enabled SLI3 options */
 700 #define LPFC_SLI3_HBQ_ENABLED           0x01
 701 #define LPFC_SLI3_NPIV_ENABLED          0x02
 702 #define LPFC_SLI3_VPORT_TEARDOWN        0x04
 703 #define LPFC_SLI3_CRP_ENABLED           0x08
 704 #define LPFC_SLI3_BG_ENABLED            0x20
 705 #define LPFC_SLI3_DSS_ENABLED           0x40
 706 #define LPFC_SLI4_PERFH_ENABLED         0x80
 707 #define LPFC_SLI4_PHWQ_ENABLED          0x100
 708         uint32_t iocb_cmd_size;
 709         uint32_t iocb_rsp_size;
 710 
 711         struct lpfc_trunk_link  trunk_link;
 712         enum hba_state link_state;
 713         uint32_t link_flag;     /* link state flags */
 714 #define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
 715                                         /* This flag is set while issuing */
 716                                         /* INIT_LINK mailbox command */
 717 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 718 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 719 #define LS_MDS_LINK_DOWN      0x8       /* MDS Diagnostics Link Down */
 720 #define LS_MDS_LOOPBACK      0x10       /* MDS Diagnostics Link Up (Loopback) */
 721 
 722         uint32_t hba_flag;      /* hba generic flags */
 723 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
 724 #define DEFER_ERATT             0x2 /* Deferred error attention in progress */
 725 #define HBA_FCOE_MODE           0x4 /* HBA function in FCoE Mode */
 726 #define HBA_SP_QUEUE_EVT        0x8 /* Slow-path qevt posted to worker thread*/
 727 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
 728 #define ELS_XRI_ABORT_EVENT     0x40
 729 #define ASYNC_EVENT             0x80
 730 #define LINK_DISABLED           0x100 /* Link disabled by user */
 731 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
 732 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
 733 #define HBA_FIP_SUPPORT         0x800 /* FIP support in HBA */
 734 #define HBA_AER_ENABLED         0x1000 /* AER enabled with HBA */
 735 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 736 #define HBA_RRQ_ACTIVE          0x4000 /* process the rrq active list */
 737 #define HBA_IOQ_FLUSH           0x8000 /* FCP/NVME I/O queues being flushed */
 738 #define HBA_FW_DUMP_OP          0x10000 /* Skips fn reset before FW dump */
 739 #define HBA_RECOVERABLE_UE      0x20000 /* Firmware supports recoverable UE */
 740 #define HBA_FORCED_LINK_SPEED   0x40000 /*
 741                                          * Firmware supports Forced Link Speed
 742                                          * capability
 743                                          */
 744 #define HBA_FLOGI_ISSUED        0x100000 /* FLOGI was issued */
 745 #define HBA_DEFER_FLOGI         0x800000 /* Defer FLOGI till read_sparm cmpl */
 746 
 747         uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 748         struct lpfc_dmabuf slim2p;
 749 
 750         MAILBOX_t *mbox;
 751         uint32_t *mbox_ext;
 752         struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
 753         uint32_t ha_copy;
 754         struct _PCB *pcb;
 755         struct _IOCB *IOCBs;
 756 
 757         struct lpfc_dmabuf hbqslimp;
 758 
 759         uint16_t pci_cfg_value;
 760 
 761         uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
 762 
 763         uint32_t fc_eventTag;   /* event tag for link attention */
 764         uint32_t link_events;
 765 
 766         /* These fields used to be binfo */
 767         uint32_t fc_pref_DID;   /* preferred D_ID */
 768         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
 769         uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
 770         uint32_t fc_edtov;      /* E_D_TOV timer value */
 771         uint32_t fc_arbtov;     /* ARB_TOV timer value */
 772         uint32_t fc_ratov;      /* R_A_TOV timer value */
 773         uint32_t fc_rttov;      /* R_T_TOV timer value */
 774         uint32_t fc_altov;      /* AL_TOV timer value */
 775         uint32_t fc_crtov;      /* C_R_TOV timer value */
 776 
 777         struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
 778         uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
 779 
 780         uint32_t lmt;
 781 
 782         uint32_t fc_topology;   /* link topology, from LINK INIT */
 783         uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
 784 
 785         struct lpfc_stats fc_stat;
 786 
 787         struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
 788         uint32_t nport_event_cnt;       /* timestamp for nlplist entry */
 789 
 790         uint8_t  wwnn[8];
 791         uint8_t  wwpn[8];
 792         uint32_t RandomData[7];
 793         uint8_t  fcp_embed_io;
 794         uint8_t  nvme_support;  /* Firmware supports NVME */
 795         uint8_t  nvmet_support; /* driver supports NVMET */
 796 #define LPFC_NVMET_MAX_PORTS    32
 797         uint8_t  mds_diags_support;
 798         uint8_t  bbcredit_support;
 799         uint8_t  enab_exp_wqcq_pages;
 800         u8       nsler; /* Firmware supports FC-NVMe-2 SLER */
 801 
 802         /* HBA Config Parameters */
 803         uint32_t cfg_ack0;
 804         uint32_t cfg_xri_rebalancing;
 805         uint32_t cfg_xpsgl;
 806         uint32_t cfg_enable_npiv;
 807         uint32_t cfg_enable_rrq;
 808         uint32_t cfg_topology;
 809         uint32_t cfg_link_speed;
 810 #define LPFC_FCF_FOV 1          /* Fast fcf failover */
 811 #define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
 812         uint32_t cfg_fcf_failover_policy;
 813         uint32_t cfg_fcp_io_sched;
 814         uint32_t cfg_ns_query;
 815         uint32_t cfg_fcp2_no_tgt_reset;
 816         uint32_t cfg_cr_delay;
 817         uint32_t cfg_cr_count;
 818         uint32_t cfg_multi_ring_support;
 819         uint32_t cfg_multi_ring_rctl;
 820         uint32_t cfg_multi_ring_type;
 821         uint32_t cfg_poll;
 822         uint32_t cfg_poll_tmo;
 823         uint32_t cfg_task_mgmt_tmo;
 824         uint32_t cfg_use_msi;
 825         uint32_t cfg_auto_imax;
 826         uint32_t cfg_fcp_imax;
 827         uint32_t cfg_force_rscn;
 828         uint32_t cfg_cq_poll_threshold;
 829         uint32_t cfg_cq_max_proc_limit;
 830         uint32_t cfg_fcp_cpu_map;
 831         uint32_t cfg_fcp_mq_threshold;
 832         uint32_t cfg_hdw_queue;
 833         uint32_t cfg_irq_chann;
 834         uint32_t cfg_suppress_rsp;
 835         uint32_t cfg_nvme_oas;
 836         uint32_t cfg_nvme_embed_cmd;
 837         uint32_t cfg_nvmet_mrq_post;
 838         uint32_t cfg_nvmet_mrq;
 839         uint32_t cfg_enable_nvmet;
 840         uint32_t cfg_nvme_enable_fb;
 841         uint32_t cfg_nvmet_fb_size;
 842         uint32_t cfg_total_seg_cnt;
 843         uint32_t cfg_sg_seg_cnt;
 844         uint32_t cfg_nvme_seg_cnt;
 845         uint32_t cfg_scsi_seg_cnt;
 846         uint32_t cfg_sg_dma_buf_size;
 847         uint64_t cfg_soft_wwnn;
 848         uint64_t cfg_soft_wwpn;
 849         uint32_t cfg_hba_queue_depth;
 850         uint32_t cfg_enable_hba_reset;
 851         uint32_t cfg_enable_hba_heartbeat;
 852         uint32_t cfg_fof;
 853         uint32_t cfg_EnableXLane;
 854         uint8_t cfg_oas_tgt_wwpn[8];
 855         uint8_t cfg_oas_vpt_wwpn[8];
 856         uint32_t cfg_oas_lun_state;
 857 #define OAS_LUN_ENABLE  1
 858 #define OAS_LUN_DISABLE 0
 859         uint32_t cfg_oas_lun_status;
 860 #define OAS_LUN_STATUS_EXISTS   0x01
 861         uint32_t cfg_oas_flags;
 862 #define OAS_FIND_ANY_VPORT      0x01
 863 #define OAS_FIND_ANY_TARGET     0x02
 864 #define OAS_LUN_VALID   0x04
 865         uint32_t cfg_oas_priority;
 866         uint32_t cfg_XLanePriority;
 867         uint32_t cfg_enable_bg;
 868         uint32_t cfg_prot_mask;
 869         uint32_t cfg_prot_guard;
 870         uint32_t cfg_hostmem_hgp;
 871         uint32_t cfg_log_verbose;
 872         uint32_t cfg_enable_fc4_type;
 873         uint32_t cfg_aer_support;
 874         uint32_t cfg_sriov_nr_virtfn;
 875         uint32_t cfg_request_firmware_upgrade;
 876         uint32_t cfg_iocb_cnt;
 877         uint32_t cfg_suppress_link_up;
 878         uint32_t cfg_rrq_xri_bitmap_sz;
 879         uint32_t cfg_delay_discovery;
 880         uint32_t cfg_sli_mode;
 881 #define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
 882 #define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
 883 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
 884         uint32_t cfg_enable_dss;
 885         uint32_t cfg_fdmi_on;
 886 #define LPFC_FDMI_NO_SUPPORT    0       /* FDMI not supported */
 887 #define LPFC_FDMI_SUPPORT       1       /* FDMI supported? */
 888         uint32_t cfg_enable_SmartSAN;
 889         uint32_t cfg_enable_mds_diags;
 890         uint32_t cfg_ras_fwlog_level;
 891         uint32_t cfg_ras_fwlog_buffsize;
 892         uint32_t cfg_ras_fwlog_func;
 893         uint32_t cfg_enable_bbcr;       /* Enable BB Credit Recovery */
 894         uint32_t cfg_enable_dpp;        /* Enable Direct Packet Push */
 895 #define LPFC_ENABLE_FCP  1
 896 #define LPFC_ENABLE_NVME 2
 897 #define LPFC_ENABLE_BOTH 3
 898         uint32_t cfg_enable_pbde;
 899         struct nvmet_fc_target_port *targetport;
 900         lpfc_vpd_t vpd;         /* vital product data */
 901 
 902         struct pci_dev *pcidev;
 903         struct list_head      work_list;
 904         uint32_t              work_ha;      /* Host Attention Bits for WT */
 905         uint32_t              work_ha_mask; /* HA Bits owned by WT        */
 906         uint32_t              work_hs;      /* HS stored in case of ERRAT */
 907         uint32_t              work_status[2]; /* Extra status from SLIM */
 908 
 909         wait_queue_head_t    work_waitq;
 910         struct task_struct   *worker_thread;
 911         unsigned long data_flags;
 912         uint32_t border_sge_num;
 913 
 914         uint32_t hbq_in_use;            /* HBQs in use flag */
 915         uint32_t hbq_count;             /* Count of configured HBQs */
 916         struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 917 
 918         atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
 919         atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
 920 
 921         phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
 922         phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
 923         phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
 924         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
 925                                            PCI BAR0 */
 926         void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
 927                                             PCI BAR2 */
 928 
 929         void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
 930                                             PCI BAR0 with dual-ULP support */
 931         void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
 932                                             PCI BAR2 with dual-ULP support */
 933         void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
 934                                             PCI BAR4 with dual-ULP support */
 935 #define PCI_64BIT_BAR0  0
 936 #define PCI_64BIT_BAR2  2
 937 #define PCI_64BIT_BAR4  4
 938         void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
 939         void __iomem *HAregaddr;        /* virtual address for host attn reg */
 940         void __iomem *CAregaddr;        /* virtual address for chip attn reg */
 941         void __iomem *HSregaddr;        /* virtual address for host status
 942                                            reg */
 943         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 944 
 945         struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
 946         struct lpfc_pgp   *port_gp;
 947         uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 948         uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 949 
 950         int brd_no;                     /* FC board number */
 951         char SerialNumber[32];          /* adapter Serial Number */
 952         char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
 953         char BIOSVersion[16];           /* Boot BIOS version */
 954         char ModelDesc[256];            /* Model Description */
 955         char ModelName[80];             /* Model Name */
 956         char ProgramType[256];          /* Program Type */
 957         char Port[20];                  /* Port No */
 958         uint8_t vpd_flag;               /* VPD data flag */
 959 
 960 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
 961 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
 962 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
 963 #define VPD_PORT            0x8         /* valid vpd port data */
 964 #define VPD_MASK            0xf         /* mask for any vpd data */
 965 
 966         uint8_t soft_wwn_enable;
 967 
 968         struct timer_list fcp_poll_timer;
 969         struct timer_list eratt_poll;
 970         uint32_t eratt_poll_interval;
 971 
 972         uint64_t bg_guard_err_cnt;
 973         uint64_t bg_apptag_err_cnt;
 974         uint64_t bg_reftag_err_cnt;
 975 
 976         /* fastpath list. */
 977         spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
 978         spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
 979         struct list_head lpfc_scsi_buf_list_get;
 980         struct list_head lpfc_scsi_buf_list_put;
 981         uint32_t total_scsi_bufs;
 982         struct list_head lpfc_iocb_list;
 983         uint32_t total_iocbq_bufs;
 984         struct list_head active_rrq_list;
 985         spinlock_t hbalock;
 986 
 987         /* dma_mem_pools */
 988         struct dma_pool *lpfc_sg_dma_buf_pool;
 989         struct dma_pool *lpfc_mbuf_pool;
 990         struct dma_pool *lpfc_hrb_pool; /* header receive buffer pool */
 991         struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
 992         struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
 993         struct dma_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
 994         struct dma_pool *txrdy_payload_pool;
 995         struct dma_pool *lpfc_cmd_rsp_buf_pool;
 996         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 997 
 998         mempool_t *mbox_mem_pool;
 999         mempool_t *nlp_mem_pool;
1000         mempool_t *rrq_pool;
1001         mempool_t *active_rrq_pool;
1002 
1003         struct fc_host_statistics link_stats;
1004         enum intr_type_t intr_type;
1005         uint32_t intr_mode;
1006 #define LPFC_INTR_ERROR 0xFFFFFFFF
1007         struct list_head port_list;
1008         spinlock_t port_list_lock;      /* lock for port_list mutations */
1009         struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
1010         uint16_t max_vpi;               /* Maximum virtual nports */
1011 #define LPFC_MAX_VPI    0xFF            /* Max number VPI supported 0 - 0xff */
1012 #define LPFC_MAX_VPORTS 0x100           /* Max vports per port, with pport */
1013         uint16_t max_vports;            /*
1014                                          * For IOV HBAs max_vpi can change
1015                                          * after a reset. max_vports is max
1016                                          * number of vports present. This can
1017                                          * be greater than max_vpi.
1018                                          */
1019         uint16_t vpi_base;
1020         uint16_t vfi_base;
1021         unsigned long *vpi_bmask;       /* vpi allocation table */
1022         uint16_t *vpi_ids;
1023         uint16_t vpi_count;
1024         struct list_head lpfc_vpi_blk_list;
1025 
1026         /* Data structure used by fabric iocb scheduler */
1027         struct list_head fabric_iocb_list;
1028         atomic_t fabric_iocb_count;
1029         struct timer_list fabric_block_timer;
1030         unsigned long bit_flags;
1031 #define FABRIC_COMANDS_BLOCKED  0
1032         atomic_t num_rsrc_err;
1033         atomic_t num_cmd_success;
1034         unsigned long last_rsrc_error_time;
1035         unsigned long last_ramp_down_time;
1036 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1037         struct dentry *hba_debugfs_root;
1038         atomic_t debugfs_vport_count;
1039         struct dentry *debug_multixri_pools;
1040         struct dentry *debug_hbqinfo;
1041         struct dentry *debug_dumpHostSlim;
1042         struct dentry *debug_dumpHBASlim;
1043         struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1044         struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1045         struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1046         struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1047         struct dentry *debug_writeApp;   /* inject write app_tag errors */
1048         struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1049         struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1050         struct dentry *debug_readApp;    /* inject read app_tag errors */
1051         struct dentry *debug_readRef;    /* inject read ref_tag errors */
1052 
1053         struct dentry *debug_nvmeio_trc;
1054         struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1055         struct dentry *debug_hdwqinfo;
1056 #ifdef LPFC_HDWQ_LOCK_STAT
1057         struct dentry *debug_lockstat;
1058 #endif
1059         atomic_t nvmeio_trc_cnt;
1060         uint32_t nvmeio_trc_size;
1061         uint32_t nvmeio_trc_output_idx;
1062 
1063         /* T10 DIF error injection */
1064         uint32_t lpfc_injerr_wgrd_cnt;
1065         uint32_t lpfc_injerr_wapp_cnt;
1066         uint32_t lpfc_injerr_wref_cnt;
1067         uint32_t lpfc_injerr_rgrd_cnt;
1068         uint32_t lpfc_injerr_rapp_cnt;
1069         uint32_t lpfc_injerr_rref_cnt;
1070         uint32_t lpfc_injerr_nportid;
1071         struct lpfc_name lpfc_injerr_wwpn;
1072         sector_t lpfc_injerr_lba;
1073 #define LPFC_INJERR_LBA_OFF     (sector_t)(-1)
1074 
1075         struct dentry *debug_slow_ring_trc;
1076         struct lpfc_debugfs_trc *slow_ring_trc;
1077         atomic_t slow_ring_trc_cnt;
1078         /* iDiag debugfs sub-directory */
1079         struct dentry *idiag_root;
1080         struct dentry *idiag_pci_cfg;
1081         struct dentry *idiag_bar_acc;
1082         struct dentry *idiag_que_info;
1083         struct dentry *idiag_que_acc;
1084         struct dentry *idiag_drb_acc;
1085         struct dentry *idiag_ctl_acc;
1086         struct dentry *idiag_mbx_acc;
1087         struct dentry *idiag_ext_acc;
1088         uint8_t lpfc_idiag_last_eq;
1089 #endif
1090         uint16_t nvmeio_trc_on;
1091 
1092         /* Used for deferred freeing of ELS data buffers */
1093         struct list_head elsbuf;
1094         int elsbuf_cnt;
1095         int elsbuf_prev_cnt;
1096 
1097         uint8_t temp_sensor_support;
1098         /* Fields used for heart beat. */
1099         unsigned long last_completion_time;
1100         unsigned long skipped_hb;
1101         struct timer_list hb_tmofunc;
1102         uint8_t hb_outstanding;
1103         struct timer_list rrq_tmr;
1104         enum hba_temp_state over_temp_state;
1105         /* ndlp reference management */
1106         spinlock_t ndlp_lock;
1107         /*
1108          * Following bit will be set for all buffer tags which are not
1109          * associated with any HBQ.
1110          */
1111 #define QUE_BUFTAG_BIT  (1<<31)
1112         uint32_t buffer_tag_count;
1113         int wait_4_mlo_maint_flg;
1114         wait_queue_head_t wait_4_mlo_m_q;
1115         /* data structure used for latency data collection */
1116 #define LPFC_NO_BUCKET     0
1117 #define LPFC_LINEAR_BUCKET 1
1118 #define LPFC_POWER2_BUCKET 2
1119         uint8_t  bucket_type;
1120         uint32_t bucket_base;
1121         uint32_t bucket_step;
1122 
1123 /* Maximum number of events that can be outstanding at any time*/
1124 #define LPFC_MAX_EVT_COUNT 512
1125         atomic_t fast_event_count;
1126         uint32_t fcoe_eventtag;
1127         uint32_t fcoe_eventtag_at_fcf_scan;
1128         uint32_t fcoe_cvl_eventtag;
1129         uint32_t fcoe_cvl_eventtag_attn;
1130         struct lpfc_fcf fcf;
1131         uint8_t fc_map[3];
1132         uint8_t valid_vlan;
1133         uint16_t vlan_id;
1134         struct list_head fcf_conn_rec_list;
1135 
1136         bool defer_flogi_acc_flag;
1137         uint16_t defer_flogi_acc_rx_id;
1138         uint16_t defer_flogi_acc_ox_id;
1139 
1140         spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1141         struct list_head ct_ev_waiters;
1142         struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1143         uint32_t ctx_idx;
1144 
1145         /* RAS Support */
1146         struct lpfc_ras_fwlog ras_fwlog;
1147 
1148         uint8_t menlo_flag;     /* menlo generic flags */
1149 #define HBA_MENLO_SUPPORT       0x1 /* HBA supports menlo commands */
1150         uint32_t iocb_cnt;
1151         uint32_t iocb_max;
1152         atomic_t sdev_cnt;
1153         uint8_t fips_spec_rev;
1154         uint8_t fips_level;
1155         spinlock_t devicelock;  /* lock for luns list */
1156         mempool_t *device_data_mem_pool;
1157         struct list_head luns;
1158 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE     0x0080
1159 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE      0x0040
1160 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE         0x0020
1161 #define LPFC_TRANSGRESSION_LOW_VOLTAGE          0x0010
1162 #define LPFC_TRANSGRESSION_HIGH_TXBIAS          0x0008
1163 #define LPFC_TRANSGRESSION_LOW_TXBIAS           0x0004
1164 #define LPFC_TRANSGRESSION_HIGH_TXPOWER         0x0002
1165 #define LPFC_TRANSGRESSION_LOW_TXPOWER          0x0001
1166 #define LPFC_TRANSGRESSION_HIGH_RXPOWER         0x8000
1167 #define LPFC_TRANSGRESSION_LOW_RXPOWER          0x4000
1168         uint16_t sfp_alarm;
1169         uint16_t sfp_warning;
1170 
1171 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1172         uint16_t cpucheck_on;
1173 #define LPFC_CHECK_OFF          0
1174 #define LPFC_CHECK_NVME_IO      1
1175 #define LPFC_CHECK_NVMET_RCV    2
1176 #define LPFC_CHECK_NVMET_IO     4
1177 #define LPFC_CHECK_SCSI_IO      8
1178         uint16_t ktime_on;
1179         uint64_t ktime_data_samples;
1180         uint64_t ktime_status_samples;
1181         uint64_t ktime_last_cmd;
1182         uint64_t ktime_seg1_total;
1183         uint64_t ktime_seg1_min;
1184         uint64_t ktime_seg1_max;
1185         uint64_t ktime_seg2_total;
1186         uint64_t ktime_seg2_min;
1187         uint64_t ktime_seg2_max;
1188         uint64_t ktime_seg3_total;
1189         uint64_t ktime_seg3_min;
1190         uint64_t ktime_seg3_max;
1191         uint64_t ktime_seg4_total;
1192         uint64_t ktime_seg4_min;
1193         uint64_t ktime_seg4_max;
1194         uint64_t ktime_seg5_total;
1195         uint64_t ktime_seg5_min;
1196         uint64_t ktime_seg5_max;
1197         uint64_t ktime_seg6_total;
1198         uint64_t ktime_seg6_min;
1199         uint64_t ktime_seg6_max;
1200         uint64_t ktime_seg7_total;
1201         uint64_t ktime_seg7_min;
1202         uint64_t ktime_seg7_max;
1203         uint64_t ktime_seg8_total;
1204         uint64_t ktime_seg8_min;
1205         uint64_t ktime_seg8_max;
1206         uint64_t ktime_seg9_total;
1207         uint64_t ktime_seg9_min;
1208         uint64_t ktime_seg9_max;
1209         uint64_t ktime_seg10_total;
1210         uint64_t ktime_seg10_min;
1211         uint64_t ktime_seg10_max;
1212 #endif
1213 
1214         struct hlist_node cpuhp;        /* used for cpuhp per hba callback */
1215         struct timer_list cpuhp_poll_timer;
1216         struct list_head poll_list;     /* slowpath eq polling list */
1217 #define LPFC_POLL_HB    1               /* slowpath heartbeat */
1218 #define LPFC_POLL_FASTPATH      0       /* called from fastpath */
1219 #define LPFC_POLL_SLOWPATH      1       /* called from slowpath */
1220 
1221         char os_host_name[MAXHOSTNAMELEN];
1222 };
1223 
1224 static inline struct Scsi_Host *
1225 lpfc_shost_from_vport(struct lpfc_vport *vport)
1226 {
1227         return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1228 }
1229 
1230 static inline void
1231 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1232 {
1233         if (phba->cfg_topology == FLAGS_LOCAL_LB)
1234                 phba->link_flag |= LS_LOOPBACK_MODE;
1235         else
1236                 phba->link_flag &= ~LS_LOOPBACK_MODE;
1237 }
1238 
1239 static inline int
1240 lpfc_is_link_up(struct lpfc_hba *phba)
1241 {
1242         return  phba->link_state == LPFC_LINK_UP ||
1243                 phba->link_state == LPFC_CLEAR_LA ||
1244                 phba->link_state == LPFC_HBA_READY;
1245 }
1246 
1247 static inline void
1248 lpfc_worker_wake_up(struct lpfc_hba *phba)
1249 {
1250         /* Set the lpfc data pending flag */
1251         set_bit(LPFC_DATA_READY, &phba->data_flags);
1252 
1253         /* Wake up worker thread */
1254         wake_up(&phba->work_waitq);
1255         return;
1256 }
1257 
1258 static inline int
1259 lpfc_readl(void __iomem *addr, uint32_t *data)
1260 {
1261         uint32_t temp;
1262         temp = readl(addr);
1263         if (temp == 0xffffffff)
1264                 return -EIO;
1265         *data = temp;
1266         return 0;
1267 }
1268 
1269 static inline int
1270 lpfc_sli_read_hs(struct lpfc_hba *phba)
1271 {
1272         /*
1273          * There was a link/board error. Read the status register to retrieve
1274          * the error event and process it.
1275          */
1276         phba->sli.slistat.err_attn_event++;
1277 
1278         /* Save status info and check for unplug error */
1279         if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1280                 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1281                 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1282                 return -EIO;
1283         }
1284 
1285         /* Clear chip Host Attention error bit */
1286         writel(HA_ERATT, phba->HAregaddr);
1287         readl(phba->HAregaddr); /* flush */
1288         phba->pport->stopped = 1;
1289 
1290         return 0;
1291 }
1292 
1293 static inline struct lpfc_sli_ring *
1294 lpfc_phba_elsring(struct lpfc_hba *phba)
1295 {
1296         /* Return NULL if sli_rev has become invalid due to bad fw */
1297         if (phba->sli_rev != LPFC_SLI_REV4  &&
1298             phba->sli_rev != LPFC_SLI_REV3  &&
1299             phba->sli_rev != LPFC_SLI_REV2)
1300                 return NULL;
1301 
1302         if (phba->sli_rev == LPFC_SLI_REV4) {
1303                 if (phba->sli4_hba.els_wq)
1304                         return phba->sli4_hba.els_wq->pring;
1305                 else
1306                         return NULL;
1307         }
1308         return &phba->sli.sli3_ring[LPFC_ELS_RING];
1309 }
1310 
1311 /**
1312  * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1313  * @phba: Pointer to HBA context object.
1314  * @q: The Event Queue to update.
1315  * @delay: The delay value (in us) to be written.
1316  *
1317  **/
1318 static inline void
1319 lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1320                            u32 delay)
1321 {
1322         struct lpfc_register reg_data;
1323 
1324         reg_data.word0 = 0;
1325         bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1326         bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1327         writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1328         eq->q_mode = delay;
1329 }
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root/drivers/scsi/lpfc/lpfc.h

INCLUDED FROM

DEFINITIONS
