/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2017-2026 Broadcom. All Rights Reserved. The term *
 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.broadcom.com                                                *
 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
 *******************************************************************/

#include <scsi/scsi_host.h>
#include <linux/hashtable.h>
#include <linux/ktime.h>
#include <linux/workqueue.h>

#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
#define CONFIG_SCSI_LPFC_DEBUG_FS
#endif

struct lpfc_sli2_slim;

#define ELX_MODEL_NAME_SIZE     80
#define ELX_FW_NAME_SIZE        84

#define LPFC_PCI_DEV_LP         0x1
#define LPFC_PCI_DEV_OC         0x2

#define LPFC_SLI_REV2           2
#define LPFC_SLI_REV3           3
#define LPFC_SLI_REV4           4

#define LPFC_MAX_TARGET         4096    /* max number of targets supported */
#define LPFC_MAX_DISC_THREADS   64      /* max outstanding discovery els
                                           requests */
#define LPFC_MAX_NS_RETRY       3       /* Number of retry attempts to contact
                                           the NameServer  before giving up. */
#define LPFC_CMD_PER_LUN        3       /* max outstanding cmds per lun */
#define LPFC_DEFAULT_SG_SEG_CNT 64      /* sg element count per scsi cmnd */

#define LPFC_DEFAULT_XPSGL_SIZE 256
#define LPFC_MAX_SG_TABLESIZE   0xffff
#define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
#define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
#define LPFC_MAX_SG_SEG_CNT_DIF 512     /* sg element count per scsi cmnd  */
#define LPFC_MAX_SG_SEG_CNT     4096    /* sg element count per scsi cmnd */
#define LPFC_MIN_SG_SEG_CNT     32      /* sg element count per scsi cmnd */
#define LPFC_MAX_SGL_SEG_CNT    512     /* SGL element count per scsi cmnd */
#define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
#define LPFC_MAX_NVME_SEG_CNT   256     /* max SGL element cnt per NVME cmnd */

#define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
#define LPFC_IOCB_LIST_CNT      2250    /* list of IOCBs for fast-path usage. */
#define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
#define LPFC_VNAME_LEN          100     /* vport symbolic name length */
#define LPFC_TGTQ_RAMPUP_PCENT  5       /* Target queue rampup in percentage */
#define LPFC_MIN_TGT_QDEPTH     10
#define LPFC_MAX_TGT_QDEPTH     0xFFFF

/*
 * Following time intervals are used of adjusting SCSI device
 * queue depths when there are driver resource error or Firmware
 * resource error.
 */
#define QUEUE_RAMP_DOWN_INTERVAL        (secs_to_jiffies(1))

/* Number of exchanges reserved for discovery to complete */
#define LPFC_DISC_IOCB_BUFF_COUNT 20

#define LPFC_HB_MBOX_INTERVAL   5       /* Heart beat interval in seconds. */
#define LPFC_HB_MBOX_TIMEOUT    30      /* Heart beat timeout  in seconds. */

/* Error Attention event polling interval */
#define LPFC_ERATT_POLL_INTERVAL        5 /* EATT poll interval in seconds */

/* Define macros for 64 bit support */
#define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
#define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
#define getPaddr(high, low)  ((dma_addr_t)( \
                             (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
/* Provide maximum configuration definitions. */
#define LPFC_DRVR_TIMEOUT       16      /* driver iocb timeout value in sec */
#define FC_MAX_ADPTMSG          64

#define MAX_HBAEVT      32
#define MAX_HBAS_NO_RESET 16

/* Number of MSI-X vectors the driver uses */
#define LPFC_MSIX_VECTORS       2

/* lpfc wait event data ready flag */
#define LPFC_DATA_READY         0       /* bit 0 */

/* queue dump line buffer size */
#define LPFC_LBUF_SZ            128

/* mailbox system shutdown options */
#define LPFC_MBX_NO_WAIT        0
#define LPFC_MBX_WAIT           1

#define LPFC_CFG_PARAM_MAGIC_NUM 0xFEAA0005
#define LPFC_PORT_CFG_NAME "/cfg/port.cfg"

#define lpfc_rangecheck(val, min, max) \
        ((uint)(val) >= (uint)(min) && (val) <= (max))

enum lpfc_polling_flags {
        ENABLE_FCP_RING_POLLING = 0x1,
        DISABLE_FCP_RING_INT    = 0x2
};

struct perf_prof {
        uint16_t cmd_cpu[40];
        uint16_t rsp_cpu[40];
        uint16_t qh_cpu[40];
        uint16_t wqidx[40];
};

/*
 * Provide for FC4 TYPE x28 - NVME.  The
 * bit mask for FCP and NVME is 0x8 identically
 * because they are 32 bit positions distance.
 */
#define LPFC_FC4_TYPE_BITMASK   0x00000100

/* Provide DMA memory definitions the driver uses per port instance. */
struct lpfc_dmabuf {
        struct list_head list;
        void *virt;             /* virtual address ptr */
        dma_addr_t phys;        /* mapped address */
        uint32_t   buffer_tag;  /* used for tagged queue ring */
};

struct lpfc_nvmet_ctxbuf {
        struct list_head list;
        struct lpfc_async_xchg_ctx *context;
        struct lpfc_iocbq *iocbq;
        struct lpfc_sglq *sglq;
        struct work_struct defer_work;
};

struct lpfc_dma_pool {
        struct lpfc_dmabuf   *elements;
        uint32_t    max_count;
        uint32_t    current_count;
};

struct hbq_dmabuf {
        struct lpfc_dmabuf hbuf;
        struct lpfc_dmabuf dbuf;
        uint16_t total_size;
        uint16_t bytes_recv;
        uint32_t tag;
        struct lpfc_cq_event cq_event;
        unsigned long time_stamp;
        void *context;
};

struct rqb_dmabuf {
        struct lpfc_dmabuf hbuf;
        struct lpfc_dmabuf dbuf;
        uint16_t total_size;
        uint16_t bytes_recv;
        uint16_t idx;
        struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
        struct lpfc_queue *drq;   /* ptr to associated Data RQ */
};

/* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
#define MEM_PRI         0x100


/****************************************************************************/
/*      Device VPD save area                                                */
/****************************************************************************/
typedef struct lpfc_vpd {
        uint32_t status;        /* vpd status value */
        uint32_t length;        /* number of bytes actually returned */
        struct {
                uint32_t rsvd1; /* Revision numbers */
                uint32_t biuRev;
                uint32_t smRev;
                uint32_t smFwRev;
                uint32_t endecRev;
                uint16_t rBit;
                uint8_t fcphHigh;
                uint8_t fcphLow;
                uint8_t feaLevelHigh;
                uint8_t feaLevelLow;
                uint32_t postKernRev;
                uint32_t opFwRev;
                uint8_t opFwName[16];
                uint32_t sli1FwRev;
                uint8_t sli1FwName[16];
                uint32_t sli2FwRev;
                uint8_t sli2FwName[16];
        } rev;
        struct {
#ifdef __BIG_ENDIAN_BITFIELD
                uint32_t rsvd3  :20;  /* Reserved                             */
                uint32_t rsvd2  : 3;  /* Reserved                             */
                uint32_t cbg    : 1;  /* Configure BlockGuard                 */
                uint32_t cmv    : 1;  /* Configure Max VPIs                   */
                uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
                uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
                uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
                uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
                uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
                uint32_t cmx    : 1;  /* Configure Max XRIs                   */
                uint32_t cmr    : 1;  /* Configure Max RPIs                   */
#else   /*  __LITTLE_ENDIAN */
                uint32_t cmr    : 1;  /* Configure Max RPIs                   */
                uint32_t cmx    : 1;  /* Configure Max XRIs                   */
                uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
                uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
                uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
                uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
                uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
                uint32_t cmv    : 1;  /* Configure Max VPIs                   */
                uint32_t cbg    : 1;  /* Configure BlockGuard                 */
                uint32_t rsvd2  : 3;  /* Reserved                             */
                uint32_t rsvd3  :20;  /* Reserved                             */
#endif
        } sli3Feat;
} lpfc_vpd_t;


/*
 * lpfc stat counters
 */
struct lpfc_stats {
        /* Statistics for ELS commands */
        uint32_t elsLogiCol;
        uint32_t elsRetryExceeded;
        uint32_t elsXmitRetry;
        uint32_t elsDelayRetry;
        uint32_t elsRcvDrop;
        uint32_t elsRcvFrame;
        uint32_t elsRcvRSCN;
        uint32_t elsRcvRNID;
        uint32_t elsRcvFARP;
        uint32_t elsRcvFARPR;
        uint32_t elsRcvFLOGI;
        uint32_t elsRcvPLOGI;
        uint32_t elsRcvADISC;
        uint32_t elsRcvPDISC;
        uint32_t elsRcvFAN;
        uint32_t elsRcvLOGO;
        uint32_t elsRcvPRLO;
        uint32_t elsRcvPRLI;
        uint32_t elsRcvLIRR;
        uint32_t elsRcvRLS;
        uint32_t elsRcvRPL;
        uint32_t elsRcvRRQ;
        uint32_t elsRcvRTV;
        uint32_t elsRcvECHO;
        uint32_t elsRcvLCB;
        uint32_t elsRcvRDP;
        uint32_t elsRcvRDF;
        uint32_t elsXmitFLOGI;
        uint32_t elsXmitFDISC;
        uint32_t elsXmitPLOGI;
        uint32_t elsXmitPRLI;
        uint32_t elsXmitADISC;
        uint32_t elsXmitLOGO;
        uint32_t elsXmitSCR;
        uint32_t elsXmitRSCN;
        uint32_t elsXmitRNID;
        uint32_t elsXmitFARP;
        uint32_t elsXmitFARPR;
        uint32_t elsXmitACC;
        uint32_t elsXmitLSRJT;

        uint32_t frameRcvBcast;
        uint32_t frameRcvMulti;
        uint32_t strayXmitCmpl;
        uint32_t frameXmitDelay;
        uint32_t xriCmdCmpl;
        uint32_t xriStatErr;
        uint32_t LinkUp;
        uint32_t LinkDown;
        uint32_t LinkMultiEvent;
        uint32_t NoRcvBuf;
        uint32_t fcpCmd;
        uint32_t fcpCmpl;
        uint32_t fcpRspErr;
        uint32_t fcpRemoteStop;
        uint32_t fcpPortRjt;
        uint32_t fcpPortBusy;
        uint32_t fcpError;
        uint32_t fcpLocalErr;
};

struct lpfc_hba;

/* Data structure to keep withheld FLOGI_ACC information */
struct lpfc_defer_flogi_acc {
        bool flag;
        u16 rx_id;
        u16 ox_id;
        struct lpfc_nodelist *ndlp;
};

#define LPFC_VMID_TIMER   300   /* timer interval in seconds */

#define LPFC_MAX_VMID_SIZE      256

union lpfc_vmid_io_tag {
        u32 app_id;     /* App Id vmid */
        u8 cs_ctl_vmid; /* Priority tag vmid */
};

#define JIFFIES_PER_HR  (HZ * 60 * 60)

struct lpfc_vmid {
        u8 flag;
#define LPFC_VMID_SLOT_FREE     0x0
#define LPFC_VMID_SLOT_USED     0x1
#define LPFC_VMID_REQ_REGISTER  0x2
#define LPFC_VMID_REGISTERED    0x4
#define LPFC_VMID_DE_REGISTER   0x8
        char host_vmid[LPFC_MAX_VMID_SIZE];
        union lpfc_vmid_io_tag un;
        struct hlist_node hnode;
        u64 io_rd_cnt;
        u64 io_wr_cnt;
        u8 vmid_len;
        u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */
        u32 hash_index;
        u64 __percpu *last_io_time;
};

#define lpfc_vmid_is_type_priority_tag(vport)\
        (vport->vmid_priority_tagging ? 1 : 0)

#define LPFC_VMID_HASH_SIZE     256
#define LPFC_VMID_HASH_MASK     255
#define LPFC_VMID_HASH_SHIFT    6

struct lpfc_vmid_context {
        struct lpfc_vmid *vmp;
        struct lpfc_nodelist *nlp;
        bool instantiated;
};

struct lpfc_vmid_priority_range {
        u8 low;
        u8 high;
        u8 qos;
};

struct lpfc_vmid_priority_info {
        u32 num_descriptors;
        struct lpfc_vmid_priority_range *vmid_range;
};

#define QFPA_EVEN_ONLY 0x01
#define QFPA_ODD_ONLY  0x02
#define QFPA_EVEN_ODD  0x03

enum discovery_state {
        LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
        LPFC_VPORT_FAILED      =  1,    /* vport has failed */
        LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
        LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
        LPFC_FDISC             =  8,    /* FDISC sent for vport */
        LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
                                         * configured */
        LPFC_NS_REG            =  10,   /* Register with NameServer */
        LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
        LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
                                         * device authentication / discovery */
        LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
        LPFC_VPORT_READY       =  32,
};

enum hba_state {
        LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
        LPFC_WARM_START      =   1,   /* HBA state after selective reset */
        LPFC_INIT_START      =   2,   /* Initial state after board reset */
        LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
        LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
        LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
        LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
                                       * CLEAR_LA */
        LPFC_HBA_READY       =  32,
        LPFC_HBA_ERROR       =  -1
};

enum lpfc_hba_flag { /* hba generic flags */
        HBA_ERATT_HANDLED       = 0, /* This flag is set when eratt handled */
        DEFER_ERATT             = 1, /* Deferred error attn in progress */
        HBA_FCOE_MODE           = 2, /* HBA function in FCoE Mode */
        HBA_SP_QUEUE_EVT        = 3, /* Slow-path qevt posted to worker thread*/
        HBA_POST_RECEIVE_BUFFER = 4, /* Rcv buffers need to be posted */
        HBA_PERSISTENT_TOPO     = 5, /* Persistent topology support in hba */
        ELS_XRI_ABORT_EVENT     = 6, /* ELS_XRI abort event was queued */
        ASYNC_EVENT             = 7,
        LINK_DISABLED           = 8, /* Link disabled by user */
        FCF_TS_INPROG           = 9, /* FCF table scan in progress */
        FCF_RR_INPROG           = 10, /* FCF roundrobin flogi in progress */
        HBA_FIP_SUPPORT         = 11, /* FIP support in HBA */
        HBA_DEVLOSS_TMO         = 13, /* HBA in devloss timeout */
        HBA_RRQ_ACTIVE          = 14, /* process the rrq active list */
        HBA_IOQ_FLUSH           = 15, /* I/O queues being flushed */
        HBA_RECOVERABLE_UE      = 17, /* FW supports recoverable UE */
        HBA_FORCED_LINK_SPEED   = 18, /*
                                       * Firmware supports Forced Link
                                       * Speed capability
                                       */
        HBA_FLOGI_ISSUED        = 20, /* FLOGI was issued */
        HBA_DEFER_FLOGI         = 23, /* Defer FLOGI till read_sparm cmpl */
        HBA_SETUP               = 24, /* HBA setup completed */
        HBA_NEEDS_CFG_PORT      = 25, /* SLI3: CONFIG_PORT mbox needed */
        HBA_HBEAT_INP           = 26, /* mbox HBEAT is in progress */
        HBA_HBEAT_TMO           = 27, /* HBEAT initiated after timeout */
        HBA_FLOGI_OUTSTANDING   = 28, /* FLOGI is outstanding */
        HBA_RHBA_CMPL           = 29, /* RHBA FDMI cmd is successful */
};

struct lpfc_trunk_link_state {
        enum hba_state state;
        uint8_t fault;
};

struct lpfc_trunk_link  {
        struct lpfc_trunk_link_state link0,
                                     link1,
                                     link2,
                                     link3;
        u32 phy_lnk_speed;
};

/* Format of congestion module parameters */
struct lpfc_cgn_param {
        uint32_t cgn_param_magic;
        uint8_t  cgn_param_version;     /* version 1 */
        uint8_t  cgn_param_mode;        /* 0=off 1=managed 2=monitor only */
#define LPFC_CFG_OFF            0
#define LPFC_CFG_MANAGED        1
#define LPFC_CFG_MONITOR        2
        uint8_t  cgn_rsvd1;
        uint8_t  cgn_rsvd2;
        uint8_t  cgn_param_level0;
        uint8_t  cgn_param_level1;
        uint8_t  cgn_param_level2;
        uint8_t  byte11;
        uint8_t  byte12;
        uint8_t  byte13;
        uint8_t  byte14;
        uint8_t  byte15;
};

/* Max number of days of congestion data */
#define LPFC_MAX_CGN_DAYS 10

struct lpfc_cgn_ts {
        uint8_t month;
        uint8_t day;
        uint8_t year;
        uint8_t hour;
        uint8_t minute;
        uint8_t second;
};

/* Format of congestion buffer info
 * This structure defines memory thats allocated and registered with
 * the HBA firmware. When adding or removing fields from this structure
 * the alignment must match the HBA firmware.
 */

struct lpfc_cgn_info {
        /* Header */
        __le16   cgn_info_size;         /* is sizeof(struct lpfc_cgn_info) */
        uint8_t  cgn_info_version;      /* represents format of structure */
#define LPFC_CGN_INFO_V1        1
#define LPFC_CGN_INFO_V2        2
#define LPFC_CGN_INFO_V3        3
#define LPFC_CGN_INFO_V4        4
        uint8_t  cgn_info_mode;         /* 0=off 1=managed 2=monitor only */
        uint8_t  cgn_info_detect;
        uint8_t  cgn_info_action;
        uint8_t  cgn_info_level0;
        uint8_t  cgn_info_level1;
        uint8_t  cgn_info_level2;

        /* Start Time */
        struct lpfc_cgn_ts base_time;

        /* minute / hours / daily indices */
        uint8_t  cgn_index_minute;
        uint8_t  cgn_index_hour;
        uint8_t  cgn_index_day;

        __le16   cgn_warn_freq;
        __le16   cgn_alarm_freq;
        __le16   cgn_lunq;
        uint8_t  cgn_pad1[8];

        /* Driver Information */
        __le16   cgn_drvr_min[60];
        __le32   cgn_drvr_hr[24];
        __le32   cgn_drvr_day[LPFC_MAX_CGN_DAYS];

        /* Congestion Warnings */
        __le16   cgn_warn_min[60];
        __le32   cgn_warn_hr[24];
        __le32   cgn_warn_day[LPFC_MAX_CGN_DAYS];

        /* Latency Information */
        __le32   cgn_latency_min[60];
        __le32   cgn_latency_hr[24];
        __le32   cgn_latency_day[LPFC_MAX_CGN_DAYS];

        /* Bandwidth Information */
        __le16   cgn_bw_min[60];
        __le16   cgn_bw_hr[24];
        __le16   cgn_bw_day[LPFC_MAX_CGN_DAYS];

        /* Congestion Alarms */
        __le16   cgn_alarm_min[60];
        __le32   cgn_alarm_hr[24];
        __le32   cgn_alarm_day[LPFC_MAX_CGN_DAYS];

        struct_group(cgn_stat,
                uint8_t  cgn_stat_npm;          /* Notifications per minute */

                /* Start Time */
                struct lpfc_cgn_ts stat_start;  /* Base time */
                uint8_t cgn_pad2;

                __le32   cgn_notification;
                __le32   cgn_peer_notification;
                __le32   link_integ_notification;
                __le32   delivery_notification;
                struct lpfc_cgn_ts stat_fpin;   /* Last congestion notification FPIN */
                struct lpfc_cgn_ts stat_peer;   /* Last peer congestion FPIN */
                struct lpfc_cgn_ts stat_lnk;    /* Last link integrity FPIN */
                struct lpfc_cgn_ts stat_delivery;       /* Last delivery notification FPIN */
        );

        __le32   cgn_info_crc;
};

#define LPFC_CGN_INFO_SZ        (sizeof(struct lpfc_cgn_info) -  \
                                sizeof(uint32_t))

struct lpfc_cgn_stat {
        atomic64_t total_bytes;
        atomic64_t rcv_bytes;
        atomic64_t rx_latency;
#define LPFC_CGN_NOT_SENT       0xFFFFFFFFFFFFFFFFLL
        atomic_t rx_io_cnt;
};

struct lpfc_cgn_acqe_stat {
        atomic64_t alarm;
        atomic64_t warn;
};

enum lpfc_fc_flag {
        /* Several of these flags are HBA centric and should be moved to
         * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
         */
        FC_PT2PT,                       /* pt2pt with no fabric */
        FC_PT2PT_PLOGI,                 /* pt2pt initiate PLOGI */
        FC_DISC_TMO,                    /* Discovery timer running */
        FC_PUBLIC_LOOP,                 /* Public loop */
        FC_LBIT,                        /* LOGIN bit in loopinit set */
        FC_RSCN_MODE,                   /* RSCN cmd rcv'ed */
        FC_NLP_MORE,                    /* More node to process in node tbl */
        FC_OFFLINE_MODE,                /* Interface is offline for diag */
        FC_FABRIC,                      /* We are fabric attached */
        FC_VPORT_LOGO_RCVD,             /* LOGO received on vport */
        FC_RSCN_DISCOVERY,              /* Auth all devices after RSCN */
        FC_LOGO_RCVD_DID_CHNG,          /* FDISC on phys port detect DID chng */
        FC_PT2PT_NO_NVME,               /* Don't send NVME PRLI */
        FC_SCSI_SCAN_TMO,               /* scsi scan timer running */
        FC_ABORT_DISCOVERY,             /* we want to abort discovery */
        FC_NDISC_ACTIVE,                /* NPort discovery active */
        FC_BYPASSED_MODE,               /* NPort is in bypassed mode */
        FC_VPORT_NEEDS_REG_VPI,         /* Needs to have its vpi registered */
        FC_RSCN_DEFERRED,               /* A deferred RSCN being processed */
        FC_VPORT_NEEDS_INIT_VPI,        /* Need to INIT_VPI before FDISC */
        FC_VPORT_CVL_RCVD,              /* VLink failed due to CVL */
        FC_VFI_REGISTERED,              /* VFI is registered */
        FC_FDISC_COMPLETED,             /* FDISC completed */
        FC_DISC_DELAYED,                /* Delay NPort discovery */
};

enum lpfc_load_flag {
        FC_LOADING,                     /* HBA in process of loading drvr */
        FC_UNLOADING,                   /* HBA in process of unloading drvr */
        FC_ALLOW_FDMI,                  /* port is ready for FDMI requests */
        FC_ALLOW_VMID,                  /* Allow VMID I/Os */
        FC_DEREGISTER_ALL_APP_ID        /* Deregister all VMIDs */
};

struct lpfc_vport {
        struct lpfc_hba *phba;
        struct list_head listentry;
        uint8_t port_type;
#define LPFC_PHYSICAL_PORT 1
#define LPFC_NPIV_PORT  2
#define LPFC_FABRIC_PORT 3
        enum discovery_state port_state;

        uint16_t vpi;
        uint16_t vfi;
        uint8_t vpi_state;
#define LPFC_VPI_REGISTERED     0x1

        unsigned long fc_flag;  /* FC flags */

        uint32_t ct_flags;
#define FC_CT_RFF_ID            0x1      /* RFF_ID accepted by switch */
#define FC_CT_RNN_ID            0x2      /* RNN_ID accepted by switch */
#define FC_CT_RSNN_NN           0x4      /* RSNN_NN accepted by switch */
#define FC_CT_RSPN_ID           0x8      /* RSPN_ID accepted by switch */
#define FC_CT_RFT_ID            0x10     /* RFT_ID accepted by switch */
#define FC_CT_RPRT_DEFER        0x20     /* Defer issuing FDMI RPRT */
#define FC_CT_RSPNI_PNI         0x40     /* RSPNI_PNI accepted by switch */

        struct list_head fc_nodes;
        spinlock_t fc_nodes_list_lock; /* spinlock for fc_nodes list */

        /* Keep counters for the number of entries in each list. */
        atomic_t fc_plogi_cnt;
        atomic_t fc_adisc_cnt;
        atomic_t fc_reglogin_cnt;
        atomic_t fc_prli_cnt;
        atomic_t fc_unmap_cnt;
        atomic_t fc_map_cnt;
        atomic_t fc_npr_cnt;
        atomic_t fc_unused_cnt;

        struct serv_parm fc_sparam;     /* buffer for our service parameters */

        uint32_t fc_myDID;      /* fibre channel S_ID */
        uint32_t fc_prevDID;    /* previous fibre channel S_ID */
        struct lpfc_name fabric_portname;
        struct lpfc_name fabric_nodename;

        int32_t stopped;   /* HBA has not been restarted since last ERATT */
        uint8_t fc_linkspeed;   /* Link speed after last READ_LA */

        uint32_t num_disc_nodes;        /* in addition to hba_state */
        uint32_t gidft_inp;             /* cnt of outstanding GID_FTs */

        uint32_t fc_rscn_id_cnt;        /* count of RSCNs payloads in list */
        uint32_t fc_rscn_flush;         /* flag use of fc_rscn_id_list */
        struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
        struct lpfc_name fc_nodename;   /* fc nodename */
        struct lpfc_name fc_portname;   /* fc portname */

        struct timer_list fc_disctmo;   /* Discovery rescue timer */
        uint8_t fc_ns_retry;    /* retries for fabric nameserver */
        uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */

        spinlock_t work_port_lock;
        uint32_t work_port_events; /* Timeout to be handled  */
#define WORKER_DISC_TMO                0x1      /* vport: Discovery timeout */
#define WORKER_ELS_TMO                 0x2      /* vport: ELS timeout */
#define WORKER_DELAYED_DISC_TMO        0x8      /* vport: delayed discovery */

#define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
#define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
#define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
#define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
#define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
#define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
#define WORKER_CHECK_INACTIVE_VMID     0x4000   /* hba: check inactive vmids */
#define WORKER_CHECK_VMID_ISSUE_QFPA   0x8000   /* vport: Check if qfpa needs
                                                 * to be issued */

        struct timer_list els_tmofunc;
        struct timer_list delayed_disc_tmo;

        unsigned long load_flag;
        /* Vport Config Parameters */
        uint32_t cfg_scan_down;
        uint32_t cfg_lun_queue_depth;
        uint32_t cfg_nodev_tmo;
        uint32_t cfg_devloss_tmo;
        uint32_t cfg_restrict_login;
        uint32_t cfg_peer_port_login;
        uint32_t cfg_fcp_class;
        uint32_t cfg_use_adisc;
        uint32_t cfg_discovery_threads;
        uint32_t cfg_log_verbose;
        uint32_t cfg_enable_fc4_type;
        uint32_t cfg_max_luns;
        uint32_t cfg_enable_da_id;
        uint32_t cfg_max_scsicmpl_time;
        uint32_t cfg_tgt_queue_depth;
        uint32_t cfg_first_burst_size;
        uint32_t dev_loss_tmo_changed;
        /* VMID parameters */
        u8 lpfc_vmid_host_uuid[16];
        u32 max_vmid;   /* maximum VMIDs allowed per port */
        u32 cur_vmid_cnt;       /* Current VMID count */
#define LPFC_MIN_VMID   4
#define LPFC_MAX_VMID   255
        u32 vmid_inactivity_timeout;    /* Time after which the VMID */
                                                /* deregisters from switch */
        u32 vmid_priority_tagging;
#define LPFC_VMID_PRIO_TAG_DISABLE      0 /* Disable */
#define LPFC_VMID_PRIO_TAG_SUP_TARGETS  1 /* Allow supported targets only */
#define LPFC_VMID_PRIO_TAG_ALL_TARGETS  2 /* Allow all targets */
        unsigned long *vmid_priority_range;
#define LPFC_VMID_MAX_PRIORITY_RANGE    256
#define LPFC_VMID_PRIORITY_BITMAP_SIZE  32
        u8 vmid_flag;
#define LPFC_VMID_IN_USE                0x1
#define LPFC_VMID_ISSUE_QFPA            0x2
#define LPFC_VMID_QFPA_CMPL             0x4
#define LPFC_VMID_QOS_ENABLED           0x8
#define LPFC_VMID_TIMER_ENBLD           0x10
#define LPFC_VMID_TYPE_PRIO             0x20
        struct fc_qfpa_res *qfpa_res;

        struct fc_vport *fc_vport;

        struct lpfc_vmid *vmid;
        DECLARE_HASHTABLE(hash_table, 8);
        rwlock_t vmid_lock;
        struct lpfc_vmid_priority_info vmid_priority;

#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
        struct dentry *vport_debugfs_root;
        struct lpfc_debugfs_trc *disc_trc;
        atomic_t disc_trc_cnt;
#endif
        struct list_head rcv_buffer_list;
        unsigned long rcv_buffer_time_stamp;
        uint32_t vport_flag;
#define STATIC_VPORT            0x1
#define FAWWPN_PARAM_CHG        0x2

        uint16_t fdmi_num_disc;
        uint32_t fdmi_hba_mask;
        uint32_t fdmi_port_mask;

        /* There is a single nvme instance per vport. */
        struct nvme_fc_local_port *localport;
        uint8_t  nvmei_support; /* driver supports NVME Initiator */
        uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
};

struct hbq_s {
        uint16_t entry_count;     /* Current number of HBQ slots */
        uint16_t buffer_count;    /* Current number of buffers posted */
        uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
        uint32_t hbqPutIdx;       /* HBQ slot to use */
        uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
        void    *hbq_virt;        /* Virtual ptr to this hbq */
        struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
                                  /* Callback for HBQ buffer allocation */
        struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
                                  /* Callback for HBQ buffer free */
        void               (*hbq_free_buffer) (struct lpfc_hba *,
                                               struct hbq_dmabuf *);
};

/* this matches the position in the lpfc_hbq_defs array */
#define LPFC_ELS_HBQ    0
#define LPFC_MAX_HBQS   1

enum hba_temp_state {
        HBA_NORMAL_TEMP,
        HBA_OVER_TEMP
};

enum intr_type_t {
        NONE = 0,
        INTx,
        MSI,
        MSIX,
};

#define LPFC_CT_CTX_MAX         64
struct unsol_rcv_ct_ctx {
        uint32_t ctxt_id;
        uint32_t SID;
        uint32_t valid;
#define UNSOL_INVALID           0
#define UNSOL_VALID             1
        uint16_t oxid;
        uint16_t rxid;
};

#define LPFC_USER_LINK_SPEED_AUTO       0       /* auto select (default)*/
#define LPFC_USER_LINK_SPEED_1G         1       /* 1 Gigabaud */
#define LPFC_USER_LINK_SPEED_2G         2       /* 2 Gigabaud */
#define LPFC_USER_LINK_SPEED_4G         4       /* 4 Gigabaud */
#define LPFC_USER_LINK_SPEED_8G         8       /* 8 Gigabaud */
#define LPFC_USER_LINK_SPEED_10G        10      /* 10 Gigabaud */
#define LPFC_USER_LINK_SPEED_16G        16      /* 16 Gigabaud */
#define LPFC_USER_LINK_SPEED_32G        32      /* 32 Gigabaud */
#define LPFC_USER_LINK_SPEED_64G        64      /* 64 Gigabaud */
#define LPFC_USER_LINK_SPEED_128G       128     /* 128 Gigabaud */
#define LPFC_USER_LINK_SPEED_MAX        LPFC_USER_LINK_SPEED_128G

#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64, 128"

enum nemb_type {
        nemb_mse = 1,
        nemb_hbd
};

enum mbox_type {
        mbox_rd = 1,
        mbox_wr
};

enum dma_type {
        dma_mbox = 1,
        dma_ebuf
};

enum sta_type {
        sta_pre_addr = 1,
        sta_pos_addr
};

struct lpfc_mbox_ext_buf_ctx {
        uint32_t state;
#define LPFC_BSG_MBOX_IDLE              0
#define LPFC_BSG_MBOX_HOST              1
#define LPFC_BSG_MBOX_PORT              2
#define LPFC_BSG_MBOX_DONE              3
#define LPFC_BSG_MBOX_ABTS              4
        enum nemb_type nembType;
        enum mbox_type mboxType;
        uint32_t numBuf;
        uint32_t mbxTag;
        uint32_t seqNum;
        struct lpfc_dmabuf *mbx_dmabuf;
        struct list_head ext_dmabuf_list;
};

struct lpfc_epd_pool {
        /* Expedite pool */
        struct list_head list;
        u32 count;
        spinlock_t lock;        /* lock for expedite pool */
};

enum ras_state {
        INACTIVE,
        REG_INPROGRESS,
        ACTIVE
};

struct lpfc_ras_fwlog {
        uint8_t *fwlog_buff;
        uint32_t fw_buffcount; /* Buffer size posted to FW */
#define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
#define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
#define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
#define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
        uint32_t fw_loglevel; /* Log level set */
        struct lpfc_dmabuf lwpd;
        struct list_head fwlog_buff_list;

        /* RAS support status on adapter */
        bool ras_hwsupport; /* RAS Support available on HW or not */
        bool ras_enabled;   /* Ras Enabled for the function */
#define LPFC_RAS_DISABLE_LOGGING 0x00
#define LPFC_RAS_ENABLE_LOGGING 0x01
        enum ras_state state;    /* RAS logging running state */
};

#define DBG_LOG_STR_SZ 256
#define DBG_LOG_SZ 256

struct dbg_log_ent {
        char log[DBG_LOG_STR_SZ];
        u64     t_ns;
};

enum lpfc_irq_chann_mode {
        /* Assign IRQs to all possible cpus that have hardware queues */
        NORMAL_MODE,

        /* Assign IRQs only to cpus on the same numa node as HBA */
        NUMA_MODE,

        /* Assign IRQs only on non-hyperthreaded CPUs. This is the
         * same as normal_mode, but assign IRQS only on physical CPUs.
         */
        NHT_MODE,
};

enum lpfc_hba_bit_flags {
        FABRIC_COMANDS_BLOCKED,
        HBA_PCI_ERR,
        MBX_TMO_ERR,
};

struct lpfc_hba {
        /* SCSI interface function jump table entries */
        struct lpfc_io_buf * (*lpfc_get_scsi_buf)
                (struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
                struct scsi_cmnd *cmnd);
        int (*lpfc_scsi_prep_dma_buf)
                (struct lpfc_hba *, struct lpfc_io_buf *);
        void (*lpfc_scsi_unprep_dma_buf)
                (struct lpfc_hba *, struct lpfc_io_buf *);
        void (*lpfc_release_scsi_buf)
                (struct lpfc_hba *, struct lpfc_io_buf *);
        void (*lpfc_rampdown_queue_depth)
                (struct lpfc_hba *);
        void (*lpfc_scsi_prep_cmnd)
                (struct lpfc_vport *, struct lpfc_io_buf *,
                 struct lpfc_nodelist *);
        int (*lpfc_scsi_prep_cmnd_buf)
                (struct lpfc_vport *vport,
                 struct lpfc_io_buf *lpfc_cmd,
                 uint8_t tmo);
        int (*lpfc_scsi_prep_task_mgmt_cmd)
                (struct lpfc_vport *vport,
                 struct lpfc_io_buf *lpfc_cmd,
                 u64 lun, u8 task_mgmt_cmd);

        /* IOCB interface function jump table entries */
        int (*__lpfc_sli_issue_iocb)
                (struct lpfc_hba *, uint32_t,
                 struct lpfc_iocbq *, uint32_t);
        int (*__lpfc_sli_issue_fcp_io)
                (struct lpfc_hba *phba, uint32_t ring_number,
                 struct lpfc_iocbq *piocb, uint32_t flag);
        void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
                         struct lpfc_iocbq *);
        int (*lpfc_hba_down_post)(struct lpfc_hba *phba);

        /* MBOX interface function jump table entries */
        int (*lpfc_sli_issue_mbox)
                (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);

        /* Slow-path IOCB process function jump table entries */
        void (*lpfc_sli_handle_slow_ring_event)
                (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                 uint32_t mask);

        /* INIT device interface function jump table entries */
        int (*lpfc_sli_hbq_to_firmware)
                (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
        int (*lpfc_sli_brdrestart)
                (struct lpfc_hba *);
        int (*lpfc_sli_brdready)
                (struct lpfc_hba *, uint32_t);
        void (*lpfc_handle_eratt)
                (struct lpfc_hba *);
        void (*lpfc_stop_port)
                (struct lpfc_hba *);
        int (*lpfc_hba_init_link)
                (struct lpfc_hba *, uint32_t);
        int (*lpfc_hba_down_link)
                (struct lpfc_hba *, uint32_t);
        int (*lpfc_selective_reset)
                (struct lpfc_hba *);

        int (*lpfc_bg_scsi_prep_dma_buf)
                (struct lpfc_hba *, struct lpfc_io_buf *);

        /* Prep SLI WQE/IOCB jump table entries */
        void (*__lpfc_sli_prep_els_req_rsp)(struct lpfc_iocbq *cmdiocbq,
                                            struct lpfc_vport *vport,
                                            struct lpfc_dmabuf *bmp,
                                            u16 cmd_size, u32 did, u32 elscmd,
                                            u8 tmo, u8 expect_rsp);
        void (*__lpfc_sli_prep_gen_req)(struct lpfc_iocbq *cmdiocbq,
                                        struct lpfc_dmabuf *bmp, u16 rpi,
                                        u32 num_entry, u8 tmo);
        void (*__lpfc_sli_prep_xmit_seq64)(struct lpfc_iocbq *cmdiocbq,
                                           struct lpfc_dmabuf *bmp, u16 rpi,
                                           u16 ox_id, u32 num_entry, u8 rctl,
                                           u8 last_seq, u8 cr_cx_cmd);
        void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
                                          u16 ulp_context, u16 iotag,
                                          u8 ulp_class, u16 cqid, bool ia,
                                          bool wqec);

        /* expedite pool */
        struct lpfc_epd_pool epd_pool;

        /* SLI4 specific HBA data structure */
        struct lpfc_sli4_hba sli4_hba;

        struct workqueue_struct *wq;
        struct delayed_work     eq_delay_work;

#define LPFC_IDLE_STAT_DELAY 1000
        struct delayed_work     idle_stat_delay_work;

        struct lpfc_sli sli;
        uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
        uint32_t sli_rev;               /* SLI2, SLI3, or SLI4 */
        uint32_t sli3_options;          /* Mask of enabled SLI3 options */
#define LPFC_SLI3_HBQ_ENABLED           0x01
#define LPFC_SLI3_NPIV_ENABLED          0x02
#define LPFC_SLI3_VPORT_TEARDOWN        0x04
#define LPFC_SLI3_CRP_ENABLED           0x08
#define LPFC_SLI3_BG_ENABLED            0x20
#define LPFC_SLI3_DSS_ENABLED           0x40
#define LPFC_SLI4_PHWQ_ENABLED          0x100
        uint32_t iocb_cmd_size;
        uint32_t iocb_rsp_size;

        struct lpfc_trunk_link  trunk_link;
        enum hba_state link_state;
        uint32_t link_flag;     /* link state flags */
#define LS_LOOPBACK_MODE      0x1       /* NPort is in Loopback mode */
                                        /* This flag is set while issuing */
                                        /* INIT_LINK mailbox command */
#define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
#define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
#define LS_MDS_LINK_DOWN      0x8       /* MDS Diagnostics Link Down */
#define LS_MDS_LOOPBACK       0x10      /* MDS Diagnostics Link Up (Loopback) */
#define LS_CT_VEN_RPA         0x20      /* Vendor RPA sent to switch */
#define LS_EXTERNAL_LOOPBACK  0x40      /* External loopback plug inserted */

        unsigned long hba_flag; /* hba generic flags */

        struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
        uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
        struct lpfc_dmabuf slim2p;

        MAILBOX_t *mbox;
        uint32_t *mbox_ext;
        struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
        uint32_t ha_copy;
        struct _PCB *pcb;
        struct _IOCB *IOCBs;

        struct lpfc_dmabuf hbqslimp;

        uint8_t fc_linkspeed;   /* Link speed after last READ_LA */

        uint32_t fc_eventTag;   /* event tag for link attention */
        uint32_t link_events;

        /* These fields used to be binfo */
        uint32_t fc_pref_DID;   /* preferred D_ID */
        uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
        uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
        uint32_t fc_edtov;      /* E_D_TOV timer value */
        uint32_t fc_arbtov;     /* ARB_TOV timer value */
        uint32_t fc_ratov;      /* R_A_TOV timer value */
        uint32_t fc_rttov;      /* R_T_TOV timer value */
        uint32_t fc_altov;      /* AL_TOV timer value */
        uint32_t fc_crtov;      /* C_R_TOV timer value */

        struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
        uint8_t alpa_map[128];  /* AL_PA map from READ_LA */

        uint32_t lmt;

        uint32_t fc_topology;   /* link topology, from LINK INIT */
        uint32_t fc_topology_changed;   /* link topology, from LINK INIT */

        struct lpfc_stats fc_stat;

        uint32_t nport_event_cnt;       /* timestamp for nlplist entry */

        unsigned long pni;              /* 64-bit Platform Name Identifier */

        uint8_t  wwnn[8];
        uint8_t  wwpn[8];
        uint32_t RandomData[7];
        uint8_t  fcp_embed_io;
        uint8_t  nvmet_support; /* driver supports NVMET */
#define LPFC_NVMET_MAX_PORTS    32
        uint8_t  mds_diags_support;
        uint8_t  bbcredit_support;
        uint8_t  enab_exp_wqcq_pages;
        u8       nsler; /* Firmware supports FC-NVMe-2 SLER */

        /* HBA Config Parameters */
        uint32_t cfg_ack0;
        uint32_t cfg_xri_rebalancing;
        uint32_t cfg_xpsgl;
        uint32_t cfg_enable_npiv;
        uint32_t cfg_enable_rrq;
        uint32_t cfg_topology;
        uint32_t cfg_link_speed;
#define LPFC_FCF_FOV 1          /* Fast fcf failover */
#define LPFC_FCF_PRIORITY 2     /* Priority fcf failover */
        uint32_t cfg_fcf_failover_policy;
        uint32_t cfg_fcp_io_sched;
        uint32_t cfg_ns_query;
        uint32_t cfg_fcp2_no_tgt_reset;
        uint32_t cfg_cr_delay;
        uint32_t cfg_cr_count;
        uint32_t cfg_multi_ring_support;
        uint32_t cfg_multi_ring_rctl;
        uint32_t cfg_multi_ring_type;
        uint32_t cfg_poll;
        uint32_t cfg_poll_tmo;
        uint32_t cfg_task_mgmt_tmo;
        uint32_t cfg_use_msi;
        uint32_t cfg_auto_imax;
        uint32_t cfg_fcp_imax;
        uint32_t cfg_force_rscn;
        uint32_t cfg_cq_poll_threshold;
        uint32_t cfg_cq_max_proc_limit;
        uint32_t cfg_fcp_cpu_map;
        uint32_t cfg_fcp_mq_threshold;
        uint32_t cfg_hdw_queue;
        uint32_t cfg_irq_chann;
        uint32_t cfg_suppress_rsp;
        uint32_t cfg_nvme_oas;
        uint32_t cfg_nvme_embed_cmd;
        uint32_t cfg_nvmet_mrq_post;
        uint32_t cfg_nvmet_mrq;
        uint32_t cfg_enable_nvmet;
        uint32_t cfg_nvme_enable_fb;
        uint32_t cfg_nvmet_fb_size;
        uint32_t cfg_total_seg_cnt;
        uint32_t cfg_sg_seg_cnt;
        uint32_t cfg_nvme_seg_cnt;
        uint32_t cfg_scsi_seg_cnt;
        uint32_t cfg_sg_dma_buf_size;
        uint32_t cfg_hba_queue_depth;
        uint32_t cfg_enable_hba_reset;
        uint32_t cfg_enable_hba_heartbeat;
        uint32_t cfg_fof;
        uint32_t cfg_EnableXLane;
        uint8_t cfg_oas_tgt_wwpn[8];
        uint8_t cfg_oas_vpt_wwpn[8];
        uint32_t cfg_oas_lun_state;
#define OAS_LUN_ENABLE  1
#define OAS_LUN_DISABLE 0
        uint32_t cfg_oas_lun_status;
#define OAS_LUN_STATUS_EXISTS   0x01
        uint32_t cfg_oas_flags;
#define OAS_FIND_ANY_VPORT      0x01
#define OAS_FIND_ANY_TARGET     0x02
#define OAS_LUN_VALID   0x04
        uint32_t cfg_oas_priority;
        uint32_t cfg_XLanePriority;
        uint32_t cfg_enable_bg;
        uint32_t cfg_prot_mask;
        uint32_t cfg_prot_guard;
        uint32_t cfg_hostmem_hgp;
        uint32_t cfg_log_verbose;
        uint32_t cfg_enable_fc4_type;
#define LPFC_ENABLE_FCP  1
#define LPFC_ENABLE_NVME 2
#define LPFC_ENABLE_BOTH 3
#if (IS_ENABLED(CONFIG_NVME_FC))
#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
#else
#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
#endif
        uint32_t cfg_sriov_nr_virtfn;
        uint32_t cfg_request_firmware_upgrade;
        uint32_t cfg_suppress_link_up;
        uint32_t cfg_rrq_xri_bitmap_sz;
        u32      cfg_fcp_wait_abts_rsp;
        uint32_t cfg_delay_discovery;
        uint32_t cfg_sli_mode;
#define LPFC_INITIALIZE_LINK              0     /* do normal init_link mbox */
#define LPFC_DELAY_INIT_LINK              1     /* layered driver hold off */
#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2     /* wait, manual intervention */
        uint32_t cfg_fdmi_on;
#define LPFC_FDMI_NO_SUPPORT    0       /* FDMI not supported */
#define LPFC_FDMI_SUPPORT       1       /* FDMI supported? */
        uint32_t cfg_enable_SmartSAN;
        uint32_t cfg_enable_mds_diags;
        uint32_t cfg_ras_fwlog_level;
        uint32_t cfg_ras_fwlog_buffsize;
        uint32_t cfg_ras_fwlog_func;
        uint32_t cfg_enable_bbcr;       /* Enable BB Credit Recovery */
        uint32_t cfg_enable_dpp;        /* Enable Direct Packet Push */
        uint32_t cfg_enable_mi;
        struct nvmet_fc_target_port *targetport;
        lpfc_vpd_t vpd;         /* vital product data */

        u32 cfg_max_vmid;       /* maximum VMIDs allowed per port */
        u32 cfg_vmid_app_header;
#define LPFC_VMID_APP_HEADER_DISABLE    0
#define LPFC_VMID_APP_HEADER_ENABLE     1
        u32 cfg_vmid_priority_tagging;
        u32 cfg_vmid_inactivity_timeout;        /* Time after which the VMID */
                                                /* deregisters from switch */
        struct pci_dev *pcidev;
        struct list_head      work_list;
        uint32_t              work_ha;      /* Host Attention Bits for WT */
        uint32_t              work_ha_mask; /* HA Bits owned by WT        */
        uint32_t              work_hs;      /* HS stored in case of ERRAT */
        uint32_t              work_status[2]; /* Extra status from SLIM */

        wait_queue_head_t    work_waitq;
        struct task_struct   *worker_thread;
        unsigned long data_flags;
        uint32_t border_sge_num;

        uint32_t hbq_in_use;            /* HBQs in use flag */
        uint32_t hbq_count;             /* Count of configured HBQs */
        struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */

        phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
        phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
        phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
        void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
                                           PCI BAR0 */
        void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
                                            PCI BAR2 */

        void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
                                            PCI BAR0 with dual-ULP support */
        void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
                                            PCI BAR2 with dual-ULP support */
        void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
                                            PCI BAR4 with dual-ULP support */
#define PCI_64BIT_BAR0  0
#define PCI_64BIT_BAR2  2
#define PCI_64BIT_BAR4  4
        void __iomem *MBslimaddr;       /* virtual address for mbox cmds */
        void __iomem *HAregaddr;        /* virtual address for host attn reg */
        void __iomem *CAregaddr;        /* virtual address for chip attn reg */
        void __iomem *HSregaddr;        /* virtual address for host status
                                           reg */
        void __iomem *HCregaddr;        /* virtual address for host ctl reg */

        struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
        struct lpfc_pgp   *port_gp;
        uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
        uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */

        int brd_no;                     /* FC board number */
        char SerialNumber[32];          /* adapter Serial Number */
        char OptionROMVersion[32];      /* adapter BIOS / Fcode version */
        char BIOSVersion[16];           /* Boot BIOS version */
        char ModelDesc[256];            /* Model Description */
        char ModelName[80];             /* Model Name */
        char ProgramType[256];          /* Program Type */
        char Port[20];                  /* Port No */
        uint8_t vpd_flag;               /* VPD data flag */

#define VPD_MODEL_DESC      0x1         /* valid vpd model description */
#define VPD_MODEL_NAME      0x2         /* valid vpd model name */
#define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
#define VPD_PORT            0x8         /* valid vpd port data */
#define VPD_MASK            0xf         /* mask for any vpd data */


        struct timer_list fcp_poll_timer;
        struct timer_list eratt_poll;
        uint32_t eratt_poll_interval;

        uint64_t bg_guard_err_cnt;
        uint64_t bg_apptag_err_cnt;
        uint64_t bg_reftag_err_cnt;

        /* fastpath list. */
        spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
        spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
        struct list_head lpfc_scsi_buf_list_get;
        struct list_head lpfc_scsi_buf_list_put;
        uint32_t total_scsi_bufs;
        struct list_head lpfc_iocb_list;
        uint32_t total_iocbq_bufs;
        spinlock_t rrq_list_lock;       /* lock for active_rrq_list */
        struct list_head active_rrq_list;
        spinlock_t hbalock;
        struct work_struct  unblock_request_work; /* SCSI layer unblock IOs */

        /* dma_mem_pools */
        struct dma_pool *lpfc_sg_dma_buf_pool;
        struct dma_pool *lpfc_mbuf_pool;
        struct dma_pool *lpfc_hrb_pool; /* header receive buffer pool */
        struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
        struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
        struct dma_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
        struct dma_pool *lpfc_cmd_rsp_buf_pool;
        struct lpfc_dma_pool lpfc_mbuf_safety_pool;

        mempool_t *mbox_mem_pool;
        mempool_t *nlp_mem_pool;
        mempool_t *rrq_pool;
        mempool_t *active_rrq_pool;

        struct fc_host_statistics link_stats;
        enum lpfc_irq_chann_mode irq_chann_mode;
        enum intr_type_t intr_type;
        uint32_t intr_mode;
#define LPFC_INTR_ERROR 0xFFFFFFFF
        struct list_head port_list;
        spinlock_t port_list_lock;      /* lock for port_list mutations */
        struct lpfc_vport *pport;       /* physical lpfc_vport pointer */
        uint16_t max_vpi;               /* Maximum virtual nports */
#define LPFC_MAX_VPI    0xFF            /* Max number VPI supported 0 - 0xff */
#define LPFC_MAX_VPORTS 0x100           /* Max vports per port, with pport */
        uint16_t max_vports;            /*
                                         * For IOV HBAs max_vpi can change
                                         * after a reset. max_vports is max
                                         * number of vports present. This can
                                         * be greater than max_vpi.
                                         */
        uint16_t vpi_base;
        uint16_t vfi_base;
        unsigned long *vpi_bmask;       /* vpi allocation table */
        uint16_t *vpi_ids;
        uint16_t vpi_count;
        struct list_head lpfc_vpi_blk_list;

        /* Data structure used by fabric iocb scheduler */
        struct list_head fabric_iocb_list;
        atomic_t fabric_iocb_count;
        struct timer_list fabric_block_timer;
        unsigned long bit_flags;
        atomic_t num_rsrc_err;
        unsigned long last_rsrc_error_time;
        unsigned long last_ramp_down_time;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
        struct dentry *hba_debugfs_root;
        unsigned int debugfs_vport_count;

        struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
        atomic_t nvmeio_trc_cnt;
        uint32_t nvmeio_trc_size;
        uint32_t nvmeio_trc_output_idx;

        /* T10 DIF error injection */
        uint32_t lpfc_injerr_wgrd_cnt;
        uint32_t lpfc_injerr_wapp_cnt;
        uint32_t lpfc_injerr_wref_cnt;
        uint32_t lpfc_injerr_rgrd_cnt;
        uint32_t lpfc_injerr_rapp_cnt;
        uint32_t lpfc_injerr_rref_cnt;
        uint32_t lpfc_injerr_nportid;
        struct lpfc_name lpfc_injerr_wwpn;
        sector_t lpfc_injerr_lba;
#define LPFC_INJERR_LBA_OFF     (sector_t)(-1)

        struct lpfc_debugfs_trc *slow_ring_trc;
        atomic_t slow_ring_trc_cnt;
        /* iDiag debugfs sub-directory */
        struct dentry *idiag_root;
        uint8_t lpfc_idiag_last_eq;
#endif
        uint16_t nvmeio_trc_on;

        /* Used for deferred freeing of ELS data buffers */
        struct list_head elsbuf;
        int elsbuf_cnt;
        int elsbuf_prev_cnt;

        uint8_t temp_sensor_support;
        /* Fields used for heart beat. */
        unsigned long last_completion_time;
        unsigned long skipped_hb;
        struct timer_list hb_tmofunc;
        struct timer_list rrq_tmr;
        enum hba_temp_state over_temp_state;
        /*
         * Following bit will be set for all buffer tags which are not
         * associated with any HBQ.
         */
#define QUE_BUFTAG_BIT  (1<<31)
        uint32_t buffer_tag_count;

/* Maximum number of events that can be outstanding at any time*/
#define LPFC_MAX_EVT_COUNT 512
        atomic_t fast_event_count;
        uint32_t fcoe_eventtag;
        uint32_t fcoe_eventtag_at_fcf_scan;
        uint32_t fcoe_cvl_eventtag;
        uint32_t fcoe_cvl_eventtag_attn;
        struct lpfc_fcf fcf;
        uint8_t fc_map[3];
        uint8_t valid_vlan;
        uint16_t vlan_id;
        struct list_head fcf_conn_rec_list;

        struct lpfc_defer_flogi_acc defer_flogi_acc;

        spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
        struct list_head ct_ev_waiters;
        struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
        uint32_t ctx_idx;
        struct timer_list inactive_vmid_poll;

        /* RAS Support */
        spinlock_t ras_fwlog_lock; /* do not take while holding another lock */
        struct lpfc_ras_fwlog ras_fwlog;

        uint32_t iocb_cnt;
        uint32_t iocb_max;
        atomic_t sdev_cnt;
        spinlock_t devicelock;  /* lock for luns list */
        mempool_t *device_data_mem_pool;
        struct list_head luns;
#define LPFC_TRANSGRESSION_HIGH_TEMPERATURE     0x0080
#define LPFC_TRANSGRESSION_LOW_TEMPERATURE      0x0040
#define LPFC_TRANSGRESSION_HIGH_VOLTAGE         0x0020
#define LPFC_TRANSGRESSION_LOW_VOLTAGE          0x0010
#define LPFC_TRANSGRESSION_HIGH_TXBIAS          0x0008
#define LPFC_TRANSGRESSION_LOW_TXBIAS           0x0004
#define LPFC_TRANSGRESSION_HIGH_TXPOWER         0x0002
#define LPFC_TRANSGRESSION_LOW_TXPOWER          0x0001
#define LPFC_TRANSGRESSION_HIGH_RXPOWER         0x8000
#define LPFC_TRANSGRESSION_LOW_RXPOWER          0x4000
        uint16_t sfp_alarm;
        uint16_t sfp_warning;

#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
        uint16_t hdwqstat_on;
#define LPFC_CHECK_OFF          0
#define LPFC_CHECK_NVME_IO      1
#define LPFC_CHECK_NVMET_IO     2
#define LPFC_CHECK_SCSI_IO      4
        uint16_t ktime_on;
        uint64_t ktime_data_samples;
        uint64_t ktime_status_samples;
        uint64_t ktime_last_cmd;
        uint64_t ktime_seg1_total;
        uint64_t ktime_seg1_min;
        uint64_t ktime_seg1_max;
        uint64_t ktime_seg2_total;
        uint64_t ktime_seg2_min;
        uint64_t ktime_seg2_max;
        uint64_t ktime_seg3_total;
        uint64_t ktime_seg3_min;
        uint64_t ktime_seg3_max;
        uint64_t ktime_seg4_total;
        uint64_t ktime_seg4_min;
        uint64_t ktime_seg4_max;
        uint64_t ktime_seg5_total;
        uint64_t ktime_seg5_min;
        uint64_t ktime_seg5_max;
        uint64_t ktime_seg6_total;
        uint64_t ktime_seg6_min;
        uint64_t ktime_seg6_max;
        uint64_t ktime_seg7_total;
        uint64_t ktime_seg7_min;
        uint64_t ktime_seg7_max;
        uint64_t ktime_seg8_total;
        uint64_t ktime_seg8_min;
        uint64_t ktime_seg8_max;
        uint64_t ktime_seg9_total;
        uint64_t ktime_seg9_min;
        uint64_t ktime_seg9_max;
        uint64_t ktime_seg10_total;
        uint64_t ktime_seg10_min;
        uint64_t ktime_seg10_max;
#endif
        /* CMF objects */
        struct lpfc_cgn_stat __percpu *cmf_stat;
        uint32_t cmf_interval_rate;  /* timer interval limit in ms */
        uint32_t cmf_timer_cnt;
#define LPFC_CMF_INTERVAL 90
        uint64_t cmf_link_byte_count;
        uint64_t cmf_max_line_rate;
        uint64_t cmf_max_bytes_per_interval;
        uint64_t cmf_last_sync_bw;
#define  LPFC_CMF_BLK_SIZE 512
        struct hrtimer cmf_timer;
        struct hrtimer cmf_stats_timer; /* 1 minute stats timer  */
        atomic_t cmf_bw_wait;
        atomic_t cmf_busy;
        atomic_t cmf_stop_io;      /* To block request and stop IO's */
        uint32_t cmf_active_mode;
        uint32_t cmf_info_per_interval;
#define LPFC_MAX_CMF_INFO 32
        struct timespec64 cmf_latency;  /* Interval congestion timestamp */
        uint32_t cmf_last_ts;   /* Interval congestion time (ms) */
        uint32_t cmf_active_info;

        /* Signal / FPIN handling for Congestion Mgmt */
        u8 cgn_reg_fpin;           /* Negotiated value from RDF */
        u8 cgn_init_reg_fpin;      /* Initial value from READ_CONFIG */
#define LPFC_CGN_FPIN_NONE      0x0
#define LPFC_CGN_FPIN_WARN      0x1
#define LPFC_CGN_FPIN_ALARM     0x2
#define LPFC_CGN_FPIN_BOTH      (LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM)

        u8 cgn_reg_signal;          /* Negotiated value from EDC */
        u8 cgn_init_reg_signal;     /* Initial value from READ_CONFIG */
                /* cgn_reg_signal and cgn_init_reg_signal use
                 * enum fc_edc_cg_signal_cap_types
                 */
        u16 cgn_fpin_frequency;         /* In units of msecs */
#define LPFC_FPIN_INIT_FREQ     0xffff
        u32 cgn_sig_freq;
        u32 cgn_acqe_cnt;

        /* RX monitor handling for CMF */
        struct lpfc_rx_info_monitor *rx_monitor;
        atomic_t rx_max_read_cnt;       /* Maximum read bytes */
        uint64_t rx_block_cnt;

        /* Congestion parameters from flash */
        struct lpfc_cgn_param cgn_p;

        /* Statistics counter for ACQE cgn alarms and warnings */
        struct lpfc_cgn_acqe_stat cgn_acqe_stat;

        /* Congestion buffer information */
        struct lpfc_dmabuf *cgn_i;      /* Congestion Info buffer */
        atomic_t cgn_fabric_warn_cnt;   /* Total warning cgn events for info */
        atomic_t cgn_fabric_alarm_cnt;  /* Total alarm cgn events for info */
        atomic_t cgn_sync_warn_cnt;     /* Total warning events for SYNC wqe */
        atomic_t cgn_sync_alarm_cnt;    /* Total alarm events for SYNC wqe */
        atomic_t cgn_driver_evt_cnt;    /* Total driver cgn events for fmw */
        atomic_t cgn_latency_evt_cnt;
        atomic64_t cgn_latency_evt;     /* Avg latency per minute */
        unsigned long cgn_evt_timestamp;
#define LPFC_CGN_TIMER_TO_MIN   60000 /* ms in a minute */
        uint32_t cgn_evt_minute;
#define LPFC_SEC_MIN            60UL
#define LPFC_MIN_HOUR           60
#define LPFC_HOUR_DAY           24
#define LPFC_MIN_DAY            (LPFC_MIN_HOUR * LPFC_HOUR_DAY)

        struct hlist_node cpuhp;        /* used for cpuhp per hba callback */
        struct timer_list cpuhp_poll_timer;
        struct list_head poll_list;     /* slowpath eq polling list */
#define LPFC_POLL_HB    1               /* slowpath heartbeat */

        char os_host_name[MAXHOSTNAMELEN];

        /* LD Signaling */
        u32 degrade_activate_threshold;
        u32 degrade_deactivate_threshold;
        u32 fec_degrade_interval;

        atomic_t dbg_log_idx;
        atomic_t dbg_log_cnt;
        atomic_t dbg_log_dmping;
        struct dbg_log_ent dbg_log[DBG_LOG_SZ];
};

#define LPFC_MAX_RXMONITOR_ENTRY        800
#define LPFC_MAX_RXMONITOR_DUMP         32
struct rx_info_entry {
        uint64_t cmf_bytes;     /* Total no of read bytes for CMF_SYNC_WQE */
        uint64_t total_bytes;   /* Total no of read bytes requested */
        uint64_t rcv_bytes;     /* Total no of read bytes completed */
        uint64_t avg_io_size;
        uint64_t avg_io_latency;/* Average io latency in microseconds */
        uint64_t max_read_cnt;  /* Maximum read bytes */
        uint64_t max_bytes_per_interval;
        uint32_t cmf_busy;
        uint32_t cmf_info;      /* CMF_SYNC_WQE info */
        uint32_t io_cnt;
        uint32_t timer_utilization;
        uint32_t timer_interval;
};

struct lpfc_rx_info_monitor {
        struct rx_info_entry *ring; /* info organized in a circular buffer */
        u32 head_idx, tail_idx; /* index to head/tail of ring */
        spinlock_t lock; /* spinlock for ring */
        u32 entries; /* storing number entries/size of ring */
};

static inline struct Scsi_Host *
lpfc_shost_from_vport(struct lpfc_vport *vport)
{
        return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
}

static inline void
lpfc_set_loopback_flag(struct lpfc_hba *phba)
{
        if (phba->cfg_topology == FLAGS_LOCAL_LB)
                phba->link_flag |= LS_LOOPBACK_MODE;
        else
                phba->link_flag &= ~LS_LOOPBACK_MODE;
}

static inline int
lpfc_is_link_up(struct lpfc_hba *phba)
{
        return  phba->link_state == LPFC_LINK_UP ||
                phba->link_state == LPFC_CLEAR_LA ||
                phba->link_state == LPFC_HBA_READY;
}

static inline void
lpfc_worker_wake_up(struct lpfc_hba *phba)
{
        /* Set the lpfc data pending flag */
        set_bit(LPFC_DATA_READY, &phba->data_flags);

        /* Wake up worker thread */
        wake_up(&phba->work_waitq);
        return;
}

static inline int
lpfc_readl(void __iomem *addr, uint32_t *data)
{
        uint32_t temp;
        temp = readl(addr);
        if (temp == 0xffffffff)
                return -EIO;
        *data = temp;
        return 0;
}

static inline int
lpfc_sli_read_hs(struct lpfc_hba *phba)
{
        /*
         * There was a link/board error. Read the status register to retrieve
         * the error event and process it.
         */
        phba->sli.slistat.err_attn_event++;

        /* Save status info and check for unplug error */
        if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
                lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
                lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
                return -EIO;
        }

        /* Clear chip Host Attention error bit */
        writel(HA_ERATT, phba->HAregaddr);
        readl(phba->HAregaddr); /* flush */
        phba->pport->stopped = 1;

        return 0;
}

static inline struct lpfc_sli_ring *
lpfc_phba_elsring(struct lpfc_hba *phba)
{
        /* Return NULL if sli_rev has become invalid due to bad fw */
        if (phba->sli_rev != LPFC_SLI_REV4  &&
            phba->sli_rev != LPFC_SLI_REV3  &&
            phba->sli_rev != LPFC_SLI_REV2)
                return NULL;

        if (phba->sli_rev == LPFC_SLI_REV4) {
                if (phba->sli4_hba.els_wq)
                        return phba->sli4_hba.els_wq->pring;
                else
                        return NULL;
        }
        return &phba->sli.sli3_ring[LPFC_ELS_RING];
}

/**
 * lpfc_next_online_cpu - Finds next online CPU on cpumask
 * @mask: Pointer to phba's cpumask member.
 * @start: starting cpu index
 *
 * Returns: next online CPU in @mask on success
 *
 * Note: If no valid cpu found, then nr_cpu_ids is returned.
 **/
static __always_inline unsigned int
lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
{
        return cpumask_next_and_wrap(start, mask, cpu_online_mask);
}

/**
 * lpfc_next_present_cpu - Finds next present CPU after n
 * @n: the cpu prior to search
 *
 * Returns: next present CPU after CPU @n
 *
 * Note: If no next present cpu, then fallback to first present cpu.
 **/
static __always_inline unsigned int lpfc_next_present_cpu(int n)
{
        return cpumask_next_wrap(n, cpu_present_mask);
}

/**
 * lpfc_sli4_mod_hba_eq_delay - update EQ delay
 * @phba: Pointer to HBA context object.
 * @eq: The Event Queue to update.
 * @delay: The delay value (in us) to be written.
 *
 **/
static inline void
lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
                           u32 delay)
{
        struct lpfc_register reg_data;

        reg_data.word0 = 0;
        bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
        bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
        writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
        eq->q_mode = delay;
}


/*
 * Macro that declares tables and a routine to perform enum type to
 * ascii string lookup.
 *
 * Defines a <key,value> table for an enum. Uses xxx_INIT defines for
 * the enum to populate the table.  Macro defines a routine (named
 * by caller) that will search all elements of the table for the key
 * and return the name string if found or "Unrecognized" if not found.
 */
#define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init)          \
static struct {                                                         \
        enum enum_name          value;                                  \
        char                    *name;                                  \
} fc_##enum_name##_e2str_names[] = enum_init;                           \
static const char *routine(enum enum_name table_key)                    \
{                                                                       \
        int i;                                                          \
        char *name = "Unrecognized";                                    \
                                                                        \
        for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
                if (fc_##enum_name##_e2str_names[i].value == table_key) {\
                        name = fc_##enum_name##_e2str_names[i].name;    \
                        break;                                          \
                }                                                       \
        }                                                               \
        return name;                                                    \
}

/**
 * lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
 * @phba: Pointer to HBA context object.
 *
 * Relationship between the enable, target support and if vmid tag is required
 * for the particular combination
 * ---------------------------------------------------
 * Switch    Enable Flag  Target Support  VMID Needed
 * ---------------------------------------------------
 * App Id     0              NA              N
 * App Id     1               0              N
 * App Id     1               1              Y
 * Pr Tag     0              NA              N
 * Pr Tag     1               0              N
 * Pr Tag     1               1              Y
 * Pr Tag     2               *              Y
 * ---------------------------------------------------
 *
 * Returns: whether VMID is enabled
 **/
static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
{
        return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
}

static inline
u8 get_job_ulpstatus(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return bf_get(lpfc_wcqe_c_status, &iocbq->wcqe_cmpl);
        else
                return iocbq->iocb.ulpStatus;
}

static inline
u32 get_job_word4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return iocbq->wcqe_cmpl.parameter;
        else
                return iocbq->iocb.un.ulpWord[4];
}

static inline
u8 get_job_cmnd(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return bf_get(wqe_cmnd, &iocbq->wqe.generic.wqe_com);
        else
                return iocbq->iocb.ulpCommand;
}

static inline
u16 get_job_ulpcontext(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return bf_get(wqe_ctxt_tag, &iocbq->wqe.generic.wqe_com);
        else
                return iocbq->iocb.ulpContext;
}

static inline
u16 get_job_rcvoxid(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return bf_get(wqe_rcvoxid, &iocbq->wqe.generic.wqe_com);
        else
                return iocbq->iocb.unsli3.rcvsli3.ox_id;
}

static inline
u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return iocbq->wcqe_cmpl.total_data_placed;
        else
                return iocbq->iocb.un.genreq64.bdl.bdeSize;
}

static inline
u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
        else
                return iocbq->iocb.un.acxri.abortIoTag;
}

static inline
u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
        if (phba->sli_rev == LPFC_SLI_REV4)
                return bf_get(wqe_els_did, &iocbq->wqe.els_req.wqe_dest);
        else
                return iocbq->iocb.un.elsreq64.remoteID;
}