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0001 /*******************************************************************
0002  * This file is part of the Emulex Linux Device Driver for         *
0003  * Fibre Channel Host Bus Adapters.                                *
0004  * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
0005  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
0006  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
0007  * EMULEX and SLI are trademarks of Emulex.                        *
0008  * www.broadcom.com                                                *
0009  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
0010  *                                                                 *
0011  * This program is free software; you can redistribute it and/or   *
0012  * modify it under the terms of version 2 of the GNU General       *
0013  * Public License as published by the Free Software Foundation.    *
0014  * This program is distributed in the hope that it will be useful. *
0015  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
0016  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
0017  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
0018  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
0019  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
0020  * more details, a copy of which can be found in the file COPYING  *
0021  * included with this package.                                     *
0022  *******************************************************************/
0023 
0024 #include <scsi/scsi_host.h>
0025 #include <linux/hashtable.h>
0026 #include <linux/ktime.h>
0027 #include <linux/workqueue.h>
0028 
0029 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
0030 #define CONFIG_SCSI_LPFC_DEBUG_FS
0031 #endif
0032 
0033 struct lpfc_sli2_slim;
0034 
0035 #define ELX_MODEL_NAME_SIZE 80
0036 
0037 #define LPFC_PCI_DEV_LP     0x1
0038 #define LPFC_PCI_DEV_OC     0x2
0039 
0040 #define LPFC_SLI_REV2       2
0041 #define LPFC_SLI_REV3       3
0042 #define LPFC_SLI_REV4       4
0043 
0044 #define LPFC_MAX_TARGET     4096    /* max number of targets supported */
0045 #define LPFC_MAX_DISC_THREADS   64  /* max outstanding discovery els
0046                        requests */
0047 #define LPFC_MAX_NS_RETRY   3   /* Number of retry attempts to contact
0048                        the NameServer  before giving up. */
0049 #define LPFC_CMD_PER_LUN    3   /* max outstanding cmds per lun */
0050 #define LPFC_DEFAULT_SG_SEG_CNT 64  /* sg element count per scsi cmnd */
0051 
0052 #define LPFC_DEFAULT_XPSGL_SIZE 256
0053 #define LPFC_MAX_SG_TABLESIZE   0xffff
0054 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800   /* based on LPFC_DEFAULT_SG_SEG_CNT */
0055 #define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
0056 #define LPFC_MAX_SG_SEG_CNT_DIF 512 /* sg element count per scsi cmnd  */
0057 #define LPFC_MAX_SG_SEG_CNT 4096    /* sg element count per scsi cmnd */
0058 #define LPFC_MIN_SG_SEG_CNT 32  /* sg element count per scsi cmnd */
0059 #define LPFC_MAX_SGL_SEG_CNT    512 /* SGL element count per scsi cmnd */
0060 #define LPFC_MAX_BPL_SEG_CNT    4096    /* BPL element count per scsi cmnd */
0061 #define LPFC_MAX_NVME_SEG_CNT   256 /* max SGL element cnt per NVME cmnd */
0062 
0063 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
0064 #define LPFC_IOCB_LIST_CNT  2250    /* list of IOCBs for fast-path usage. */
0065 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
0066 #define LPFC_VNAME_LEN      100 /* vport symbolic name length */
0067 #define LPFC_TGTQ_RAMPUP_PCENT  5   /* Target queue rampup in percentage */
0068 #define LPFC_MIN_TGT_QDEPTH 10
0069 #define LPFC_MAX_TGT_QDEPTH 0xFFFF
0070 
0071 #define  LPFC_MAX_BUCKET_COUNT 20   /* Maximum no. of buckets for stat data
0072                        collection. */
0073 /*
0074  * Following time intervals are used of adjusting SCSI device
0075  * queue depths when there are driver resource error or Firmware
0076  * resource error.
0077  */
0078 /* 1 Second */
0079 #define QUEUE_RAMP_DOWN_INTERVAL    (msecs_to_jiffies(1000 * 1))
0080 
0081 /* Number of exchanges reserved for discovery to complete */
0082 #define LPFC_DISC_IOCB_BUFF_COUNT 20
0083 
0084 #define LPFC_HB_MBOX_INTERVAL   5   /* Heart beat interval in seconds. */
0085 #define LPFC_HB_MBOX_TIMEOUT    30  /* Heart beat timeout  in seconds. */
0086 
0087 /* Error Attention event polling interval */
0088 #define LPFC_ERATT_POLL_INTERVAL    5 /* EATT poll interval in seconds */
0089 
0090 /* Define macros for 64 bit support */
0091 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
0092 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
0093 #define getPaddr(high, low)  ((dma_addr_t)( \
0094                  (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
0095 /* Provide maximum configuration definitions. */
0096 #define LPFC_DRVR_TIMEOUT   16  /* driver iocb timeout value in sec */
0097 #define FC_MAX_ADPTMSG      64
0098 
0099 #define MAX_HBAEVT  32
0100 #define MAX_HBAS_NO_RESET 16
0101 
0102 /* Number of MSI-X vectors the driver uses */
0103 #define LPFC_MSIX_VECTORS   2
0104 
0105 /* lpfc wait event data ready flag */
0106 #define LPFC_DATA_READY     0   /* bit 0 */
0107 
0108 /* queue dump line buffer size */
0109 #define LPFC_LBUF_SZ        128
0110 
0111 /* mailbox system shutdown options */
0112 #define LPFC_MBX_NO_WAIT    0
0113 #define LPFC_MBX_WAIT       1
0114 
0115 #define LPFC_CFG_PARAM_MAGIC_NUM 0xFEAA0005
0116 #define LPFC_PORT_CFG_NAME "/cfg/port.cfg"
0117 
0118 #define lpfc_rangecheck(val, min, max) \
0119     ((uint)(val) >= (uint)(min) && (val) <= (max))
0120 
0121 enum lpfc_polling_flags {
0122     ENABLE_FCP_RING_POLLING = 0x1,
0123     DISABLE_FCP_RING_INT    = 0x2
0124 };
0125 
0126 struct perf_prof {
0127     uint16_t cmd_cpu[40];
0128     uint16_t rsp_cpu[40];
0129     uint16_t qh_cpu[40];
0130     uint16_t wqidx[40];
0131 };
0132 
0133 /*
0134  * Provide for FC4 TYPE x28 - NVME.  The
0135  * bit mask for FCP and NVME is 0x8 identically
0136  * because they are 32 bit positions distance.
0137  */
0138 #define LPFC_FC4_TYPE_BITMASK   0x00000100
0139 
0140 /* Provide DMA memory definitions the driver uses per port instance. */
0141 struct lpfc_dmabuf {
0142     struct list_head list;
0143     void *virt;     /* virtual address ptr */
0144     dma_addr_t phys;    /* mapped address */
0145     uint32_t   buffer_tag;  /* used for tagged queue ring */
0146 };
0147 
0148 struct lpfc_nvmet_ctxbuf {
0149     struct list_head list;
0150     struct lpfc_async_xchg_ctx *context;
0151     struct lpfc_iocbq *iocbq;
0152     struct lpfc_sglq *sglq;
0153     struct work_struct defer_work;
0154 };
0155 
0156 struct lpfc_dma_pool {
0157     struct lpfc_dmabuf   *elements;
0158     uint32_t    max_count;
0159     uint32_t    current_count;
0160 };
0161 
0162 struct hbq_dmabuf {
0163     struct lpfc_dmabuf hbuf;
0164     struct lpfc_dmabuf dbuf;
0165     uint16_t total_size;
0166     uint16_t bytes_recv;
0167     uint32_t tag;
0168     struct lpfc_cq_event cq_event;
0169     unsigned long time_stamp;
0170     void *context;
0171 };
0172 
0173 struct rqb_dmabuf {
0174     struct lpfc_dmabuf hbuf;
0175     struct lpfc_dmabuf dbuf;
0176     uint16_t total_size;
0177     uint16_t bytes_recv;
0178     uint16_t idx;
0179     struct lpfc_queue *hrq;   /* ptr to associated Header RQ */
0180     struct lpfc_queue *drq;   /* ptr to associated Data RQ */
0181 };
0182 
0183 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
0184 #define MEM_PRI     0x100
0185 
0186 
0187 /****************************************************************************/
0188 /*      Device VPD save area                                                */
0189 /****************************************************************************/
0190 typedef struct lpfc_vpd {
0191     uint32_t status;    /* vpd status value */
0192     uint32_t length;    /* number of bytes actually returned */
0193     struct {
0194         uint32_t rsvd1; /* Revision numbers */
0195         uint32_t biuRev;
0196         uint32_t smRev;
0197         uint32_t smFwRev;
0198         uint32_t endecRev;
0199         uint16_t rBit;
0200         uint8_t fcphHigh;
0201         uint8_t fcphLow;
0202         uint8_t feaLevelHigh;
0203         uint8_t feaLevelLow;
0204         uint32_t postKernRev;
0205         uint32_t opFwRev;
0206         uint8_t opFwName[16];
0207         uint32_t sli1FwRev;
0208         uint8_t sli1FwName[16];
0209         uint32_t sli2FwRev;
0210         uint8_t sli2FwName[16];
0211     } rev;
0212     struct {
0213 #ifdef __BIG_ENDIAN_BITFIELD
0214         uint32_t rsvd3  :20;  /* Reserved                             */
0215         uint32_t rsvd2  : 3;  /* Reserved                             */
0216         uint32_t cbg    : 1;  /* Configure BlockGuard                 */
0217         uint32_t cmv    : 1;  /* Configure Max VPIs                   */
0218         uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
0219         uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
0220         uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
0221         uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
0222         uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
0223         uint32_t cmx    : 1;  /* Configure Max XRIs                   */
0224         uint32_t cmr    : 1;  /* Configure Max RPIs                   */
0225 #else   /*  __LITTLE_ENDIAN */
0226         uint32_t cmr    : 1;  /* Configure Max RPIs                   */
0227         uint32_t cmx    : 1;  /* Configure Max XRIs                   */
0228         uint32_t cerbm  : 1;  /* Configure Enhanced Receive Buf Mgmt  */
0229         uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
0230         uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
0231         uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
0232         uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
0233         uint32_t cmv    : 1;  /* Configure Max VPIs                   */
0234         uint32_t cbg    : 1;  /* Configure BlockGuard                 */
0235         uint32_t rsvd2  : 3;  /* Reserved                             */
0236         uint32_t rsvd3  :20;  /* Reserved                             */
0237 #endif
0238     } sli3Feat;
0239 } lpfc_vpd_t;
0240 
0241 
0242 /*
0243  * lpfc stat counters
0244  */
0245 struct lpfc_stats {
0246     /* Statistics for ELS commands */
0247     uint32_t elsLogiCol;
0248     uint32_t elsRetryExceeded;
0249     uint32_t elsXmitRetry;
0250     uint32_t elsDelayRetry;
0251     uint32_t elsRcvDrop;
0252     uint32_t elsRcvFrame;
0253     uint32_t elsRcvRSCN;
0254     uint32_t elsRcvRNID;
0255     uint32_t elsRcvFARP;
0256     uint32_t elsRcvFARPR;
0257     uint32_t elsRcvFLOGI;
0258     uint32_t elsRcvPLOGI;
0259     uint32_t elsRcvADISC;
0260     uint32_t elsRcvPDISC;
0261     uint32_t elsRcvFAN;
0262     uint32_t elsRcvLOGO;
0263     uint32_t elsRcvPRLO;
0264     uint32_t elsRcvPRLI;
0265     uint32_t elsRcvLIRR;
0266     uint32_t elsRcvRLS;
0267     uint32_t elsRcvRPL;
0268     uint32_t elsRcvRRQ;
0269     uint32_t elsRcvRTV;
0270     uint32_t elsRcvECHO;
0271     uint32_t elsRcvLCB;
0272     uint32_t elsRcvRDP;
0273     uint32_t elsRcvRDF;
0274     uint32_t elsXmitFLOGI;
0275     uint32_t elsXmitFDISC;
0276     uint32_t elsXmitPLOGI;
0277     uint32_t elsXmitPRLI;
0278     uint32_t elsXmitADISC;
0279     uint32_t elsXmitLOGO;
0280     uint32_t elsXmitSCR;
0281     uint32_t elsXmitRSCN;
0282     uint32_t elsXmitRNID;
0283     uint32_t elsXmitFARP;
0284     uint32_t elsXmitFARPR;
0285     uint32_t elsXmitACC;
0286     uint32_t elsXmitLSRJT;
0287 
0288     uint32_t frameRcvBcast;
0289     uint32_t frameRcvMulti;
0290     uint32_t strayXmitCmpl;
0291     uint32_t frameXmitDelay;
0292     uint32_t xriCmdCmpl;
0293     uint32_t xriStatErr;
0294     uint32_t LinkUp;
0295     uint32_t LinkDown;
0296     uint32_t LinkMultiEvent;
0297     uint32_t NoRcvBuf;
0298     uint32_t fcpCmd;
0299     uint32_t fcpCmpl;
0300     uint32_t fcpRspErr;
0301     uint32_t fcpRemoteStop;
0302     uint32_t fcpPortRjt;
0303     uint32_t fcpPortBusy;
0304     uint32_t fcpError;
0305     uint32_t fcpLocalErr;
0306 };
0307 
0308 struct lpfc_hba;
0309 
0310 
0311 #define LPFC_VMID_TIMER   300   /* timer interval in seconds */
0312 
0313 #define LPFC_MAX_VMID_SIZE      256
0314 #define LPFC_COMPRESS_VMID_SIZE 16
0315 
0316 union lpfc_vmid_io_tag {
0317     u32 app_id; /* App Id vmid */
0318     u8 cs_ctl_vmid; /* Priority tag vmid */
0319 };
0320 
0321 #define JIFFIES_PER_HR  (HZ * 60 * 60)
0322 
0323 struct lpfc_vmid {
0324     u8 flag;
0325 #define LPFC_VMID_SLOT_FREE     0x0
0326 #define LPFC_VMID_SLOT_USED     0x1
0327 #define LPFC_VMID_REQ_REGISTER  0x2
0328 #define LPFC_VMID_REGISTERED    0x4
0329 #define LPFC_VMID_DE_REGISTER   0x8
0330     char host_vmid[LPFC_MAX_VMID_SIZE];
0331     union lpfc_vmid_io_tag un;
0332     struct hlist_node hnode;
0333     u64 io_rd_cnt;
0334     u64 io_wr_cnt;
0335     u8 vmid_len;
0336     u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */
0337     u32 hash_index;
0338     u64 __percpu *last_io_time;
0339 };
0340 
0341 #define lpfc_vmid_is_type_priority_tag(vport)\
0342     (vport->vmid_priority_tagging ? 1 : 0)
0343 
0344 #define LPFC_VMID_HASH_SIZE     256
0345 #define LPFC_VMID_HASH_MASK     255
0346 #define LPFC_VMID_HASH_SHIFT    6
0347 
0348 struct lpfc_vmid_context {
0349     struct lpfc_vmid *vmp;
0350     struct lpfc_nodelist *nlp;
0351     bool instantiated;
0352 };
0353 
0354 struct lpfc_vmid_priority_range {
0355     u8 low;
0356     u8 high;
0357     u8 qos;
0358 };
0359 
0360 struct lpfc_vmid_priority_info {
0361     u32 num_descriptors;
0362     struct lpfc_vmid_priority_range *vmid_range;
0363 };
0364 
0365 #define QFPA_EVEN_ONLY 0x01
0366 #define QFPA_ODD_ONLY  0x02
0367 #define QFPA_EVEN_ODD  0x03
0368 
0369 enum discovery_state {
0370     LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
0371     LPFC_VPORT_FAILED      =  1,    /* vport has failed */
0372     LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
0373     LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
0374     LPFC_FDISC             =  8,    /* FDISC sent for vport */
0375     LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
0376                          * configured */
0377     LPFC_NS_REG            =  10,   /* Register with NameServer */
0378     LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
0379     LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
0380                          * device authentication / discovery */
0381     LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
0382     LPFC_VPORT_READY       =  32,
0383 };
0384 
0385 enum hba_state {
0386     LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
0387     LPFC_WARM_START      =   1,   /* HBA state after selective reset */
0388     LPFC_INIT_START      =   2,   /* Initial state after board reset */
0389     LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
0390     LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
0391     LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
0392     LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
0393                        * CLEAR_LA */
0394     LPFC_HBA_READY       =  32,
0395     LPFC_HBA_ERROR       =  -1
0396 };
0397 
0398 struct lpfc_trunk_link_state {
0399     enum hba_state state;
0400     uint8_t fault;
0401 };
0402 
0403 struct lpfc_trunk_link  {
0404     struct lpfc_trunk_link_state link0,
0405                      link1,
0406                      link2,
0407                      link3;
0408 };
0409 
0410 /* Format of congestion module parameters */
0411 struct lpfc_cgn_param {
0412     uint32_t cgn_param_magic;
0413     uint8_t  cgn_param_version; /* version 1 */
0414     uint8_t  cgn_param_mode;    /* 0=off 1=managed 2=monitor only */
0415 #define LPFC_CFG_OFF        0
0416 #define LPFC_CFG_MANAGED    1
0417 #define LPFC_CFG_MONITOR    2
0418     uint8_t  cgn_rsvd1;
0419     uint8_t  cgn_rsvd2;
0420     uint8_t  cgn_param_level0;
0421     uint8_t  cgn_param_level1;
0422     uint8_t  cgn_param_level2;
0423     uint8_t  byte11;
0424     uint8_t  byte12;
0425     uint8_t  byte13;
0426     uint8_t  byte14;
0427     uint8_t  byte15;
0428 };
0429 
0430 /* Max number of days of congestion data */
0431 #define LPFC_MAX_CGN_DAYS 10
0432 
0433 /* Format of congestion buffer info
0434  * This structure defines memory thats allocated and registered with
0435  * the HBA firmware. When adding or removing fields from this structure
0436  * the alignment must match the HBA firmware.
0437  */
0438 
0439 struct lpfc_cgn_info {
0440     /* Header */
0441     __le16   cgn_info_size;     /* is sizeof(struct lpfc_cgn_info) */
0442     uint8_t  cgn_info_version;  /* represents format of structure */
0443 #define LPFC_CGN_INFO_V1    1
0444 #define LPFC_CGN_INFO_V2    2
0445 #define LPFC_CGN_INFO_V3    3
0446     uint8_t  cgn_info_mode;     /* 0=off 1=managed 2=monitor only */
0447     uint8_t  cgn_info_detect;
0448     uint8_t  cgn_info_action;
0449     uint8_t  cgn_info_level0;
0450     uint8_t  cgn_info_level1;
0451     uint8_t  cgn_info_level2;
0452 
0453     /* Start Time */
0454     uint8_t  cgn_info_month;
0455     uint8_t  cgn_info_day;
0456     uint8_t  cgn_info_year;
0457     uint8_t  cgn_info_hour;
0458     uint8_t  cgn_info_minute;
0459     uint8_t  cgn_info_second;
0460 
0461     /* minute / hours / daily indices */
0462     uint8_t  cgn_index_minute;
0463     uint8_t  cgn_index_hour;
0464     uint8_t  cgn_index_day;
0465 
0466     __le16   cgn_warn_freq;
0467     __le16   cgn_alarm_freq;
0468     __le16   cgn_lunq;
0469     uint8_t  cgn_pad1[8];
0470 
0471     /* Driver Information */
0472     __le16   cgn_drvr_min[60];
0473     __le32   cgn_drvr_hr[24];
0474     __le32   cgn_drvr_day[LPFC_MAX_CGN_DAYS];
0475 
0476     /* Congestion Warnings */
0477     __le16   cgn_warn_min[60];
0478     __le32   cgn_warn_hr[24];
0479     __le32   cgn_warn_day[LPFC_MAX_CGN_DAYS];
0480 
0481     /* Latency Information */
0482     __le32   cgn_latency_min[60];
0483     __le32   cgn_latency_hr[24];
0484     __le32   cgn_latency_day[LPFC_MAX_CGN_DAYS];
0485 
0486     /* Bandwidth Information */
0487     __le16   cgn_bw_min[60];
0488     __le16   cgn_bw_hr[24];
0489     __le16   cgn_bw_day[LPFC_MAX_CGN_DAYS];
0490 
0491     /* Congestion Alarms */
0492     __le16   cgn_alarm_min[60];
0493     __le32   cgn_alarm_hr[24];
0494     __le32   cgn_alarm_day[LPFC_MAX_CGN_DAYS];
0495 
0496     struct_group(cgn_stat,
0497         uint8_t  cgn_stat_npm;      /* Notifications per minute */
0498 
0499         /* Start Time */
0500         uint8_t  cgn_stat_month;
0501         uint8_t  cgn_stat_day;
0502         uint8_t  cgn_stat_year;
0503         uint8_t  cgn_stat_hour;
0504         uint8_t  cgn_stat_minute;
0505         uint8_t  cgn_pad2[2];
0506 
0507         __le32   cgn_notification;
0508         __le32   cgn_peer_notification;
0509         __le32   link_integ_notification;
0510         __le32   delivery_notification;
0511 
0512         uint8_t  cgn_stat_cgn_month; /* Last congestion notification FPIN */
0513         uint8_t  cgn_stat_cgn_day;
0514         uint8_t  cgn_stat_cgn_year;
0515         uint8_t  cgn_stat_cgn_hour;
0516         uint8_t  cgn_stat_cgn_min;
0517         uint8_t  cgn_stat_cgn_sec;
0518 
0519         uint8_t  cgn_stat_peer_month; /* Last peer congestion FPIN */
0520         uint8_t  cgn_stat_peer_day;
0521         uint8_t  cgn_stat_peer_year;
0522         uint8_t  cgn_stat_peer_hour;
0523         uint8_t  cgn_stat_peer_min;
0524         uint8_t  cgn_stat_peer_sec;
0525 
0526         uint8_t  cgn_stat_lnk_month; /* Last link integrity FPIN */
0527         uint8_t  cgn_stat_lnk_day;
0528         uint8_t  cgn_stat_lnk_year;
0529         uint8_t  cgn_stat_lnk_hour;
0530         uint8_t  cgn_stat_lnk_min;
0531         uint8_t  cgn_stat_lnk_sec;
0532 
0533         uint8_t  cgn_stat_del_month; /* Last delivery notification FPIN */
0534         uint8_t  cgn_stat_del_day;
0535         uint8_t  cgn_stat_del_year;
0536         uint8_t  cgn_stat_del_hour;
0537         uint8_t  cgn_stat_del_min;
0538         uint8_t  cgn_stat_del_sec;
0539     );
0540 
0541     __le32   cgn_info_crc;
0542 #define LPFC_CGN_CRC32_MAGIC_NUMBER 0x1EDC6F41
0543 #define LPFC_CGN_CRC32_SEED     0xFFFFFFFF
0544 };
0545 
0546 #define LPFC_CGN_INFO_SZ    (sizeof(struct lpfc_cgn_info) -  \
0547                 sizeof(uint32_t))
0548 
0549 struct lpfc_cgn_stat {
0550     atomic64_t total_bytes;
0551     atomic64_t rcv_bytes;
0552     atomic64_t rx_latency;
0553 #define LPFC_CGN_NOT_SENT   0xFFFFFFFFFFFFFFFFLL
0554     atomic_t rx_io_cnt;
0555 };
0556 
0557 struct lpfc_cgn_acqe_stat {
0558     atomic64_t alarm;
0559     atomic64_t warn;
0560 };
0561 
0562 struct lpfc_vport {
0563     struct lpfc_hba *phba;
0564     struct list_head listentry;
0565     uint8_t port_type;
0566 #define LPFC_PHYSICAL_PORT 1
0567 #define LPFC_NPIV_PORT  2
0568 #define LPFC_FABRIC_PORT 3
0569     enum discovery_state port_state;
0570 
0571     uint16_t vpi;
0572     uint16_t vfi;
0573     uint8_t vpi_state;
0574 #define LPFC_VPI_REGISTERED 0x1
0575 
0576     uint32_t fc_flag;   /* FC flags */
0577 /* Several of these flags are HBA centric and should be moved to
0578  * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
0579  */
0580 #define FC_PT2PT                0x1  /* pt2pt with no fabric */
0581 #define FC_PT2PT_PLOGI          0x2  /* pt2pt initiate PLOGI */
0582 #define FC_DISC_TMO             0x4  /* Discovery timer running */
0583 #define FC_PUBLIC_LOOP          0x8  /* Public loop */
0584 #define FC_LBIT                 0x10     /* LOGIN bit in loopinit set */
0585 #define FC_RSCN_MODE            0x20     /* RSCN cmd rcv'ed */
0586 #define FC_NLP_MORE             0x40     /* More node to process in node tbl */
0587 #define FC_OFFLINE_MODE         0x80     /* Interface is offline for diag */
0588 #define FC_FABRIC               0x100    /* We are fabric attached */
0589 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
0590 #define FC_RSCN_DISCOVERY       0x400    /* Auth all devices after RSCN */
0591 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
0592 #define FC_PT2PT_NO_NVME        0x1000   /* Don't send NVME PRLI */
0593 #define FC_SCSI_SCAN_TMO        0x4000   /* scsi scan timer running */
0594 #define FC_ABORT_DISCOVERY      0x8000   /* we want to abort discovery */
0595 #define FC_NDISC_ACTIVE         0x10000  /* NPort discovery active */
0596 #define FC_BYPASSED_MODE        0x20000  /* NPort is in bypassed mode */
0597 #define FC_VPORT_NEEDS_REG_VPI  0x80000  /* Needs to have its vpi registered */
0598 #define FC_RSCN_DEFERRED    0x100000 /* A deferred RSCN being processed */
0599 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
0600 #define FC_VPORT_CVL_RCVD   0x400000 /* VLink failed due to CVL  */
0601 #define FC_VFI_REGISTERED   0x800000 /* VFI is registered */
0602 #define FC_FDISC_COMPLETED  0x1000000/* FDISC completed */
0603 #define FC_DISC_DELAYED     0x2000000/* Delay NPort discovery */
0604 
0605     uint32_t ct_flags;
0606 #define FC_CT_RFF_ID        0x1  /* RFF_ID accepted by switch */
0607 #define FC_CT_RNN_ID        0x2  /* RNN_ID accepted by switch */
0608 #define FC_CT_RSNN_NN       0x4  /* RSNN_NN accepted by switch */
0609 #define FC_CT_RSPN_ID       0x8  /* RSPN_ID accepted by switch */
0610 #define FC_CT_RFT_ID        0x10     /* RFT_ID accepted by switch */
0611 #define FC_CT_RPRT_DEFER    0x20     /* Defer issuing FDMI RPRT */
0612 
0613     struct list_head fc_nodes;
0614 
0615     /* Keep counters for the number of entries in each list. */
0616     uint16_t fc_plogi_cnt;
0617     uint16_t fc_adisc_cnt;
0618     uint16_t fc_reglogin_cnt;
0619     uint16_t fc_prli_cnt;
0620     uint16_t fc_unmap_cnt;
0621     uint16_t fc_map_cnt;
0622     uint16_t fc_npr_cnt;
0623     uint16_t fc_unused_cnt;
0624     struct serv_parm fc_sparam; /* buffer for our service parameters */
0625 
0626     uint32_t fc_myDID;  /* fibre channel S_ID */
0627     uint32_t fc_prevDID;    /* previous fibre channel S_ID */
0628     struct lpfc_name fabric_portname;
0629     struct lpfc_name fabric_nodename;
0630 
0631     int32_t stopped;   /* HBA has not been restarted since last ERATT */
0632     uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
0633 
0634     uint32_t num_disc_nodes;    /* in addition to hba_state */
0635     uint32_t gidft_inp;     /* cnt of outstanding GID_FTs */
0636 
0637     uint32_t fc_nlp_cnt;    /* outstanding NODELIST requests */
0638     uint32_t fc_rscn_id_cnt;    /* count of RSCNs payloads in list */
0639     uint32_t fc_rscn_flush;     /* flag use of fc_rscn_id_list */
0640     struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
0641     struct lpfc_name fc_nodename;   /* fc nodename */
0642     struct lpfc_name fc_portname;   /* fc portname */
0643 
0644     struct lpfc_work_evt disc_timeout_evt;
0645 
0646     struct timer_list fc_disctmo;   /* Discovery rescue timer */
0647     uint8_t fc_ns_retry;    /* retries for fabric nameserver */
0648     uint32_t fc_prli_sent;  /* cntr for outstanding PRLIs */
0649 
0650     spinlock_t work_port_lock;
0651     uint32_t work_port_events; /* Timeout to be handled  */
0652 #define WORKER_DISC_TMO                0x1  /* vport: Discovery timeout */
0653 #define WORKER_ELS_TMO                 0x2  /* vport: ELS timeout */
0654 #define WORKER_DELAYED_DISC_TMO        0x8  /* vport: delayed discovery */
0655 
0656 #define WORKER_MBOX_TMO                0x100    /* hba: MBOX timeout */
0657 #define WORKER_HB_TMO                  0x200    /* hba: Heart beat timeout */
0658 #define WORKER_FABRIC_BLOCK_TMO        0x400    /* hba: fabric block timeout */
0659 #define WORKER_RAMP_DOWN_QUEUE         0x800    /* hba: Decrease Q depth */
0660 #define WORKER_RAMP_UP_QUEUE           0x1000   /* hba: Increase Q depth */
0661 #define WORKER_SERVICE_TXQ             0x2000   /* hba: IOCBs on the txq */
0662 #define WORKER_CHECK_INACTIVE_VMID     0x4000   /* hba: check inactive vmids */
0663 #define WORKER_CHECK_VMID_ISSUE_QFPA   0x8000   /* vport: Check if qfpa needs
0664                          * to be issued */
0665 
0666     struct timer_list els_tmofunc;
0667     struct timer_list delayed_disc_tmo;
0668 
0669     uint8_t load_flag;
0670 #define FC_LOADING      0x1 /* HBA in process of loading drvr */
0671 #define FC_UNLOADING        0x2 /* HBA in process of unloading drvr */
0672 #define FC_ALLOW_FDMI       0x4 /* port is ready for FDMI requests */
0673 #define FC_ALLOW_VMID       0x8 /* Allow VMID I/Os */
0674 #define FC_DEREGISTER_ALL_APP_ID    0x10    /* Deregister all VMIDs */
0675     /* Vport Config Parameters */
0676     uint32_t cfg_scan_down;
0677     uint32_t cfg_lun_queue_depth;
0678     uint32_t cfg_nodev_tmo;
0679     uint32_t cfg_devloss_tmo;
0680     uint32_t cfg_restrict_login;
0681     uint32_t cfg_peer_port_login;
0682     uint32_t cfg_fcp_class;
0683     uint32_t cfg_use_adisc;
0684     uint32_t cfg_discovery_threads;
0685     uint32_t cfg_log_verbose;
0686     uint32_t cfg_enable_fc4_type;
0687     uint32_t cfg_max_luns;
0688     uint32_t cfg_enable_da_id;
0689     uint32_t cfg_max_scsicmpl_time;
0690     uint32_t cfg_tgt_queue_depth;
0691     uint32_t cfg_first_burst_size;
0692     uint32_t dev_loss_tmo_changed;
0693     /* VMID parameters */
0694     u8 lpfc_vmid_host_uuid[LPFC_COMPRESS_VMID_SIZE];
0695     u32 max_vmid;   /* maximum VMIDs allowed per port */
0696     u32 cur_vmid_cnt;   /* Current VMID count */
0697 #define LPFC_MIN_VMID   4
0698 #define LPFC_MAX_VMID   255
0699     u32 vmid_inactivity_timeout;    /* Time after which the VMID */
0700                         /* deregisters from switch */
0701     u32 vmid_priority_tagging;
0702 #define LPFC_VMID_PRIO_TAG_DISABLE  0 /* Disable */
0703 #define LPFC_VMID_PRIO_TAG_SUP_TARGETS  1 /* Allow supported targets only */
0704 #define LPFC_VMID_PRIO_TAG_ALL_TARGETS  2 /* Allow all targets */
0705     unsigned long *vmid_priority_range;
0706 #define LPFC_VMID_MAX_PRIORITY_RANGE    256
0707 #define LPFC_VMID_PRIORITY_BITMAP_SIZE  32
0708     u8 vmid_flag;
0709 #define LPFC_VMID_IN_USE        0x1
0710 #define LPFC_VMID_ISSUE_QFPA        0x2
0711 #define LPFC_VMID_QFPA_CMPL     0x4
0712 #define LPFC_VMID_QOS_ENABLED       0x8
0713 #define LPFC_VMID_TIMER_ENBLD       0x10
0714 #define LPFC_VMID_TYPE_PRIO     0x20
0715     struct fc_qfpa_res *qfpa_res;
0716 
0717     struct fc_vport *fc_vport;
0718 
0719     struct lpfc_vmid *vmid;
0720     DECLARE_HASHTABLE(hash_table, 8);
0721     rwlock_t vmid_lock;
0722     struct lpfc_vmid_priority_info vmid_priority;
0723 
0724 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
0725     struct dentry *debug_disc_trc;
0726     struct dentry *debug_nodelist;
0727     struct dentry *debug_nvmestat;
0728     struct dentry *debug_scsistat;
0729     struct dentry *debug_ioktime;
0730     struct dentry *debug_hdwqstat;
0731     struct dentry *vport_debugfs_root;
0732     struct lpfc_debugfs_trc *disc_trc;
0733     atomic_t disc_trc_cnt;
0734 #endif
0735     uint8_t stat_data_enabled;
0736     uint8_t stat_data_blocked;
0737     struct list_head rcv_buffer_list;
0738     unsigned long rcv_buffer_time_stamp;
0739     uint32_t vport_flag;
0740 #define STATIC_VPORT        0x1
0741 #define FAWWPN_PARAM_CHG    0x2
0742 
0743     uint16_t fdmi_num_disc;
0744     uint32_t fdmi_hba_mask;
0745     uint32_t fdmi_port_mask;
0746 
0747     /* There is a single nvme instance per vport. */
0748     struct nvme_fc_local_port *localport;
0749     uint8_t  nvmei_support; /* driver supports NVME Initiator */
0750     uint32_t last_fcp_wqidx;
0751     uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
0752 };
0753 
0754 struct hbq_s {
0755     uint16_t entry_count;     /* Current number of HBQ slots */
0756     uint16_t buffer_count;    /* Current number of buffers posted */
0757     uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
0758     uint32_t hbqPutIdx;   /* HBQ slot to use */
0759     uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
0760     void    *hbq_virt;    /* Virtual ptr to this hbq */
0761     struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
0762                   /* Callback for HBQ buffer allocation */
0763     struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
0764                   /* Callback for HBQ buffer free */
0765     void               (*hbq_free_buffer) (struct lpfc_hba *,
0766                            struct hbq_dmabuf *);
0767 };
0768 
0769 /* this matches the position in the lpfc_hbq_defs array */
0770 #define LPFC_ELS_HBQ    0
0771 #define LPFC_MAX_HBQS   1
0772 
0773 enum hba_temp_state {
0774     HBA_NORMAL_TEMP,
0775     HBA_OVER_TEMP
0776 };
0777 
0778 enum intr_type_t {
0779     NONE = 0,
0780     INTx,
0781     MSI,
0782     MSIX,
0783 };
0784 
0785 #define LPFC_CT_CTX_MAX     64
0786 struct unsol_rcv_ct_ctx {
0787     uint32_t ctxt_id;
0788     uint32_t SID;
0789     uint32_t valid;
0790 #define UNSOL_INVALID       0
0791 #define UNSOL_VALID     1
0792     uint16_t oxid;
0793     uint16_t rxid;
0794 };
0795 
0796 #define LPFC_USER_LINK_SPEED_AUTO   0   /* auto select (default)*/
0797 #define LPFC_USER_LINK_SPEED_1G     1   /* 1 Gigabaud */
0798 #define LPFC_USER_LINK_SPEED_2G     2   /* 2 Gigabaud */
0799 #define LPFC_USER_LINK_SPEED_4G     4   /* 4 Gigabaud */
0800 #define LPFC_USER_LINK_SPEED_8G     8   /* 8 Gigabaud */
0801 #define LPFC_USER_LINK_SPEED_10G    10  /* 10 Gigabaud */
0802 #define LPFC_USER_LINK_SPEED_16G    16  /* 16 Gigabaud */
0803 #define LPFC_USER_LINK_SPEED_32G    32  /* 32 Gigabaud */
0804 #define LPFC_USER_LINK_SPEED_64G    64  /* 64 Gigabaud */
0805 #define LPFC_USER_LINK_SPEED_MAX    LPFC_USER_LINK_SPEED_64G
0806 
0807 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
0808 
0809 enum nemb_type {
0810     nemb_mse = 1,
0811     nemb_hbd
0812 };
0813 
0814 enum mbox_type {
0815     mbox_rd = 1,
0816     mbox_wr
0817 };
0818 
0819 enum dma_type {
0820     dma_mbox = 1,
0821     dma_ebuf
0822 };
0823 
0824 enum sta_type {
0825     sta_pre_addr = 1,
0826     sta_pos_addr
0827 };
0828 
0829 struct lpfc_mbox_ext_buf_ctx {
0830     uint32_t state;
0831 #define LPFC_BSG_MBOX_IDLE      0
0832 #define LPFC_BSG_MBOX_HOST              1
0833 #define LPFC_BSG_MBOX_PORT      2
0834 #define LPFC_BSG_MBOX_DONE      3
0835 #define LPFC_BSG_MBOX_ABTS      4
0836     enum nemb_type nembType;
0837     enum mbox_type mboxType;
0838     uint32_t numBuf;
0839     uint32_t mbxTag;
0840     uint32_t seqNum;
0841     struct lpfc_dmabuf *mbx_dmabuf;
0842     struct list_head ext_dmabuf_list;
0843 };
0844 
0845 struct lpfc_epd_pool {
0846     /* Expedite pool */
0847     struct list_head list;
0848     u32 count;
0849     spinlock_t lock;    /* lock for expedite pool */
0850 };
0851 
0852 enum ras_state {
0853     INACTIVE,
0854     REG_INPROGRESS,
0855     ACTIVE
0856 };
0857 
0858 struct lpfc_ras_fwlog {
0859     uint8_t *fwlog_buff;
0860     uint32_t fw_buffcount; /* Buffer size posted to FW */
0861 #define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
0862 #define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
0863 #define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
0864 #define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
0865     uint32_t fw_loglevel; /* Log level set */
0866     struct lpfc_dmabuf lwpd;
0867     struct list_head fwlog_buff_list;
0868 
0869     /* RAS support status on adapter */
0870     bool ras_hwsupport; /* RAS Support available on HW or not */
0871     bool ras_enabled;   /* Ras Enabled for the function */
0872 #define LPFC_RAS_DISABLE_LOGGING 0x00
0873 #define LPFC_RAS_ENABLE_LOGGING 0x01
0874     enum ras_state state;    /* RAS logging running state */
0875 };
0876 
0877 #define DBG_LOG_STR_SZ 256
0878 #define DBG_LOG_SZ 256
0879 
0880 struct dbg_log_ent {
0881     char log[DBG_LOG_STR_SZ];
0882     u64     t_ns;
0883 };
0884 
0885 enum lpfc_irq_chann_mode {
0886     /* Assign IRQs to all possible cpus that have hardware queues */
0887     NORMAL_MODE,
0888 
0889     /* Assign IRQs only to cpus on the same numa node as HBA */
0890     NUMA_MODE,
0891 
0892     /* Assign IRQs only on non-hyperthreaded CPUs. This is the
0893      * same as normal_mode, but assign IRQS only on physical CPUs.
0894      */
0895     NHT_MODE,
0896 };
0897 
0898 enum lpfc_hba_bit_flags {
0899     FABRIC_COMANDS_BLOCKED,
0900     HBA_PCI_ERR,
0901 };
0902 
0903 struct lpfc_hba {
0904     /* SCSI interface function jump table entries */
0905     struct lpfc_io_buf * (*lpfc_get_scsi_buf)
0906         (struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
0907         struct scsi_cmnd *cmnd);
0908     int (*lpfc_scsi_prep_dma_buf)
0909         (struct lpfc_hba *, struct lpfc_io_buf *);
0910     void (*lpfc_scsi_unprep_dma_buf)
0911         (struct lpfc_hba *, struct lpfc_io_buf *);
0912     void (*lpfc_release_scsi_buf)
0913         (struct lpfc_hba *, struct lpfc_io_buf *);
0914     void (*lpfc_rampdown_queue_depth)
0915         (struct lpfc_hba *);
0916     void (*lpfc_scsi_prep_cmnd)
0917         (struct lpfc_vport *, struct lpfc_io_buf *,
0918          struct lpfc_nodelist *);
0919     int (*lpfc_scsi_prep_cmnd_buf)
0920         (struct lpfc_vport *vport,
0921          struct lpfc_io_buf *lpfc_cmd,
0922          uint8_t tmo);
0923     int (*lpfc_scsi_prep_task_mgmt_cmd)
0924         (struct lpfc_vport *vport,
0925          struct lpfc_io_buf *lpfc_cmd,
0926          u64 lun, u8 task_mgmt_cmd);
0927 
0928     /* IOCB interface function jump table entries */
0929     int (*__lpfc_sli_issue_iocb)
0930         (struct lpfc_hba *, uint32_t,
0931          struct lpfc_iocbq *, uint32_t);
0932     int (*__lpfc_sli_issue_fcp_io)
0933         (struct lpfc_hba *phba, uint32_t ring_number,
0934          struct lpfc_iocbq *piocb, uint32_t flag);
0935     void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
0936              struct lpfc_iocbq *);
0937     int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
0938     void (*lpfc_scsi_cmd_iocb_cmpl)
0939         (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
0940 
0941     /* MBOX interface function jump table entries */
0942     int (*lpfc_sli_issue_mbox)
0943         (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
0944 
0945     /* Slow-path IOCB process function jump table entries */
0946     void (*lpfc_sli_handle_slow_ring_event)
0947         (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
0948          uint32_t mask);
0949 
0950     /* INIT device interface function jump table entries */
0951     int (*lpfc_sli_hbq_to_firmware)
0952         (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
0953     int (*lpfc_sli_brdrestart)
0954         (struct lpfc_hba *);
0955     int (*lpfc_sli_brdready)
0956         (struct lpfc_hba *, uint32_t);
0957     void (*lpfc_handle_eratt)
0958         (struct lpfc_hba *);
0959     void (*lpfc_stop_port)
0960         (struct lpfc_hba *);
0961     int (*lpfc_hba_init_link)
0962         (struct lpfc_hba *, uint32_t);
0963     int (*lpfc_hba_down_link)
0964         (struct lpfc_hba *, uint32_t);
0965     int (*lpfc_selective_reset)
0966         (struct lpfc_hba *);
0967 
0968     int (*lpfc_bg_scsi_prep_dma_buf)
0969         (struct lpfc_hba *, struct lpfc_io_buf *);
0970 
0971     /* Prep SLI WQE/IOCB jump table entries */
0972     void (*__lpfc_sli_prep_els_req_rsp)(struct lpfc_iocbq *cmdiocbq,
0973                         struct lpfc_vport *vport,
0974                         struct lpfc_dmabuf *bmp,
0975                         u16 cmd_size, u32 did, u32 elscmd,
0976                         u8 tmo, u8 expect_rsp);
0977     void (*__lpfc_sli_prep_gen_req)(struct lpfc_iocbq *cmdiocbq,
0978                     struct lpfc_dmabuf *bmp, u16 rpi,
0979                     u32 num_entry, u8 tmo);
0980     void (*__lpfc_sli_prep_xmit_seq64)(struct lpfc_iocbq *cmdiocbq,
0981                        struct lpfc_dmabuf *bmp, u16 rpi,
0982                        u16 ox_id, u32 num_entry, u8 rctl,
0983                        u8 last_seq, u8 cr_cx_cmd);
0984     void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
0985                       u16 ulp_context, u16 iotag,
0986                       u8 ulp_class, u16 cqid, bool ia,
0987                       bool wqec);
0988 
0989     /* expedite pool */
0990     struct lpfc_epd_pool epd_pool;
0991 
0992     /* SLI4 specific HBA data structure */
0993     struct lpfc_sli4_hba sli4_hba;
0994 
0995     struct workqueue_struct *wq;
0996     struct delayed_work     eq_delay_work;
0997 
0998 #define LPFC_IDLE_STAT_DELAY 1000
0999     struct delayed_work idle_stat_delay_work;
1000 
1001     struct lpfc_sli sli;
1002     uint8_t pci_dev_grp;    /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
1003     uint32_t sli_rev;       /* SLI2, SLI3, or SLI4 */
1004     uint32_t sli3_options;      /* Mask of enabled SLI3 options */
1005 #define LPFC_SLI3_HBQ_ENABLED       0x01
1006 #define LPFC_SLI3_NPIV_ENABLED      0x02
1007 #define LPFC_SLI3_VPORT_TEARDOWN    0x04
1008 #define LPFC_SLI3_CRP_ENABLED       0x08
1009 #define LPFC_SLI3_BG_ENABLED        0x20
1010 #define LPFC_SLI3_DSS_ENABLED       0x40
1011 #define LPFC_SLI4_PERFH_ENABLED     0x80
1012 #define LPFC_SLI4_PHWQ_ENABLED      0x100
1013     uint32_t iocb_cmd_size;
1014     uint32_t iocb_rsp_size;
1015 
1016     struct lpfc_trunk_link  trunk_link;
1017     enum hba_state link_state;
1018     uint32_t link_flag; /* link state flags */
1019 #define LS_LOOPBACK_MODE      0x1   /* NPort is in Loopback mode */
1020                     /* This flag is set while issuing */
1021                     /* INIT_LINK mailbox command */
1022 #define LS_NPIV_FAB_SUPPORTED 0x2   /* Fabric supports NPIV */
1023 #define LS_IGNORE_ERATT       0x4   /* intr handler should ignore ERATT */
1024 #define LS_MDS_LINK_DOWN      0x8   /* MDS Diagnostics Link Down */
1025 #define LS_MDS_LOOPBACK       0x10  /* MDS Diagnostics Link Up (Loopback) */
1026 #define LS_CT_VEN_RPA         0x20  /* Vendor RPA sent to switch */
1027 #define LS_EXTERNAL_LOOPBACK  0x40  /* External loopback plug inserted */
1028 
1029     uint32_t hba_flag;  /* hba generic flags */
1030 #define HBA_ERATT_HANDLED   0x1 /* This flag is set when eratt handled */
1031 #define DEFER_ERATT     0x2 /* Deferred error attention in progress */
1032 #define HBA_FCOE_MODE       0x4 /* HBA function in FCoE Mode */
1033 #define HBA_SP_QUEUE_EVT    0x8 /* Slow-path qevt posted to worker thread*/
1034 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
1035 #define HBA_PERSISTENT_TOPO 0x20 /* Persistent topology support in hba */
1036 #define ELS_XRI_ABORT_EVENT 0x40 /* ELS_XRI abort event was queued */
1037 #define ASYNC_EVENT     0x80
1038 #define LINK_DISABLED       0x100 /* Link disabled by user */
1039 #define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
1040 #define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
1041 #define HBA_FIP_SUPPORT     0x800 /* FIP support in HBA */
1042 #define HBA_AER_ENABLED     0x1000 /* AER enabled with HBA */
1043 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
1044 #define HBA_RRQ_ACTIVE      0x4000 /* process the rrq active list */
1045 #define HBA_IOQ_FLUSH       0x8000 /* FCP/NVME I/O queues being flushed */
1046 #define HBA_RECOVERABLE_UE  0x20000 /* Firmware supports recoverable UE */
1047 #define HBA_FORCED_LINK_SPEED   0x40000 /*
1048                      * Firmware supports Forced Link Speed
1049                      * capability
1050                      */
1051 #define HBA_FLOGI_ISSUED    0x100000 /* FLOGI was issued */
1052 #define HBA_SHORT_CMF       0x200000 /* shorter CMF timer routine */
1053 #define HBA_CGN_DAY_WRAP    0x400000 /* HBA Congestion info day wraps */
1054 #define HBA_DEFER_FLOGI     0x800000 /* Defer FLOGI till read_sparm cmpl */
1055 #define HBA_SETUP       0x1000000 /* Signifies HBA setup is completed */
1056 #define HBA_NEEDS_CFG_PORT  0x2000000 /* SLI3 - needs a CONFIG_PORT mbox */
1057 #define HBA_HBEAT_INP       0x4000000 /* mbox HBEAT is in progress */
1058 #define HBA_HBEAT_TMO       0x8000000 /* HBEAT initiated after timeout */
1059 #define HBA_FLOGI_OUTSTANDING   0x10000000 /* FLOGI is outstanding */
1060 #define HBA_RHBA_CMPL       0x20000000 /* RHBA FDMI command is successful */
1061 
1062     struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
1063     uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
1064     struct lpfc_dmabuf slim2p;
1065 
1066     MAILBOX_t *mbox;
1067     uint32_t *mbox_ext;
1068     struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
1069     uint32_t ha_copy;
1070     struct _PCB *pcb;
1071     struct _IOCB *IOCBs;
1072 
1073     struct lpfc_dmabuf hbqslimp;
1074 
1075     uint16_t pci_cfg_value;
1076 
1077     uint8_t fc_linkspeed;   /* Link speed after last READ_LA */
1078 
1079     uint32_t fc_eventTag;   /* event tag for link attention */
1080     uint32_t link_events;
1081 
1082     /* These fields used to be binfo */
1083     uint32_t fc_pref_DID;   /* preferred D_ID */
1084     uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
1085     uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
1086     uint32_t fc_edtov;  /* E_D_TOV timer value */
1087     uint32_t fc_arbtov; /* ARB_TOV timer value */
1088     uint32_t fc_ratov;  /* R_A_TOV timer value */
1089     uint32_t fc_rttov;  /* R_T_TOV timer value */
1090     uint32_t fc_altov;  /* AL_TOV timer value */
1091     uint32_t fc_crtov;  /* C_R_TOV timer value */
1092 
1093     struct serv_parm fc_fabparam;   /* fabric service parameters buffer */
1094     uint8_t alpa_map[128];  /* AL_PA map from READ_LA */
1095 
1096     uint32_t lmt;
1097 
1098     uint32_t fc_topology;   /* link topology, from LINK INIT */
1099     uint32_t fc_topology_changed;   /* link topology, from LINK INIT */
1100 
1101     struct lpfc_stats fc_stat;
1102 
1103     struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
1104     uint32_t nport_event_cnt;   /* timestamp for nlplist entry */
1105 
1106     uint8_t  wwnn[8];
1107     uint8_t  wwpn[8];
1108     uint32_t RandomData[7];
1109     uint8_t  fcp_embed_io;
1110     uint8_t  nvmet_support; /* driver supports NVMET */
1111 #define LPFC_NVMET_MAX_PORTS    32
1112     uint8_t  mds_diags_support;
1113     uint8_t  bbcredit_support;
1114     uint8_t  enab_exp_wqcq_pages;
1115     u8   nsler; /* Firmware supports FC-NVMe-2 SLER */
1116 
1117     /* HBA Config Parameters */
1118     uint32_t cfg_ack0;
1119     uint32_t cfg_xri_rebalancing;
1120     uint32_t cfg_xpsgl;
1121     uint32_t cfg_enable_npiv;
1122     uint32_t cfg_enable_rrq;
1123     uint32_t cfg_topology;
1124     uint32_t cfg_link_speed;
1125 #define LPFC_FCF_FOV 1      /* Fast fcf failover */
1126 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */
1127     uint32_t cfg_fcf_failover_policy;
1128     uint32_t cfg_fcp_io_sched;
1129     uint32_t cfg_ns_query;
1130     uint32_t cfg_fcp2_no_tgt_reset;
1131     uint32_t cfg_cr_delay;
1132     uint32_t cfg_cr_count;
1133     uint32_t cfg_multi_ring_support;
1134     uint32_t cfg_multi_ring_rctl;
1135     uint32_t cfg_multi_ring_type;
1136     uint32_t cfg_poll;
1137     uint32_t cfg_poll_tmo;
1138     uint32_t cfg_task_mgmt_tmo;
1139     uint32_t cfg_use_msi;
1140     uint32_t cfg_auto_imax;
1141     uint32_t cfg_fcp_imax;
1142     uint32_t cfg_force_rscn;
1143     uint32_t cfg_cq_poll_threshold;
1144     uint32_t cfg_cq_max_proc_limit;
1145     uint32_t cfg_fcp_cpu_map;
1146     uint32_t cfg_fcp_mq_threshold;
1147     uint32_t cfg_hdw_queue;
1148     uint32_t cfg_irq_chann;
1149     uint32_t cfg_suppress_rsp;
1150     uint32_t cfg_nvme_oas;
1151     uint32_t cfg_nvme_embed_cmd;
1152     uint32_t cfg_nvmet_mrq_post;
1153     uint32_t cfg_nvmet_mrq;
1154     uint32_t cfg_enable_nvmet;
1155     uint32_t cfg_nvme_enable_fb;
1156     uint32_t cfg_nvmet_fb_size;
1157     uint32_t cfg_total_seg_cnt;
1158     uint32_t cfg_sg_seg_cnt;
1159     uint32_t cfg_nvme_seg_cnt;
1160     uint32_t cfg_scsi_seg_cnt;
1161     uint32_t cfg_sg_dma_buf_size;
1162     uint32_t cfg_hba_queue_depth;
1163     uint32_t cfg_enable_hba_reset;
1164     uint32_t cfg_enable_hba_heartbeat;
1165     uint32_t cfg_fof;
1166     uint32_t cfg_EnableXLane;
1167     uint8_t cfg_oas_tgt_wwpn[8];
1168     uint8_t cfg_oas_vpt_wwpn[8];
1169     uint32_t cfg_oas_lun_state;
1170 #define OAS_LUN_ENABLE  1
1171 #define OAS_LUN_DISABLE 0
1172     uint32_t cfg_oas_lun_status;
1173 #define OAS_LUN_STATUS_EXISTS   0x01
1174     uint32_t cfg_oas_flags;
1175 #define OAS_FIND_ANY_VPORT  0x01
1176 #define OAS_FIND_ANY_TARGET 0x02
1177 #define OAS_LUN_VALID   0x04
1178     uint32_t cfg_oas_priority;
1179     uint32_t cfg_XLanePriority;
1180     uint32_t cfg_enable_bg;
1181     uint32_t cfg_prot_mask;
1182     uint32_t cfg_prot_guard;
1183     uint32_t cfg_hostmem_hgp;
1184     uint32_t cfg_log_verbose;
1185     uint32_t cfg_enable_fc4_type;
1186 #define LPFC_ENABLE_FCP  1
1187 #define LPFC_ENABLE_NVME 2
1188 #define LPFC_ENABLE_BOTH 3
1189 #if (IS_ENABLED(CONFIG_NVME_FC))
1190 #define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1191 #define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1192 #else
1193 #define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1194 #define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1195 #endif
1196     uint32_t cfg_aer_support;
1197     uint32_t cfg_sriov_nr_virtfn;
1198     uint32_t cfg_request_firmware_upgrade;
1199     uint32_t cfg_suppress_link_up;
1200     uint32_t cfg_rrq_xri_bitmap_sz;
1201     u32      cfg_fcp_wait_abts_rsp;
1202     uint32_t cfg_delay_discovery;
1203     uint32_t cfg_sli_mode;
1204 #define LPFC_INITIALIZE_LINK              0 /* do normal init_link mbox */
1205 #define LPFC_DELAY_INIT_LINK              1 /* layered driver hold off */
1206 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
1207     uint32_t cfg_fdmi_on;
1208 #define LPFC_FDMI_NO_SUPPORT    0   /* FDMI not supported */
1209 #define LPFC_FDMI_SUPPORT   1   /* FDMI supported? */
1210     uint32_t cfg_enable_SmartSAN;
1211     uint32_t cfg_enable_mds_diags;
1212     uint32_t cfg_ras_fwlog_level;
1213     uint32_t cfg_ras_fwlog_buffsize;
1214     uint32_t cfg_ras_fwlog_func;
1215     uint32_t cfg_enable_bbcr;   /* Enable BB Credit Recovery */
1216     uint32_t cfg_enable_dpp;    /* Enable Direct Packet Push */
1217     uint32_t cfg_enable_pbde;
1218     uint32_t cfg_enable_mi;
1219     struct nvmet_fc_target_port *targetport;
1220     lpfc_vpd_t vpd;     /* vital product data */
1221 
1222     u32 cfg_max_vmid;   /* maximum VMIDs allowed per port */
1223     u32 cfg_vmid_app_header;
1224 #define LPFC_VMID_APP_HEADER_DISABLE    0
1225 #define LPFC_VMID_APP_HEADER_ENABLE 1
1226     u32 cfg_vmid_priority_tagging;
1227     u32 cfg_vmid_inactivity_timeout;    /* Time after which the VMID */
1228                         /* deregisters from switch */
1229     struct pci_dev *pcidev;
1230     struct list_head      work_list;
1231     uint32_t              work_ha;      /* Host Attention Bits for WT */
1232     uint32_t              work_ha_mask; /* HA Bits owned by WT        */
1233     uint32_t              work_hs;      /* HS stored in case of ERRAT */
1234     uint32_t              work_status[2]; /* Extra status from SLIM */
1235 
1236     wait_queue_head_t    work_waitq;
1237     struct task_struct   *worker_thread;
1238     unsigned long data_flags;
1239     uint32_t border_sge_num;
1240 
1241     uint32_t hbq_in_use;        /* HBQs in use flag */
1242     uint32_t hbq_count;         /* Count of configured HBQs */
1243     struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
1244 
1245     atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
1246     atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
1247 
1248     phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
1249     phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
1250     phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
1251     void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
1252                        PCI BAR0 */
1253     void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
1254                         PCI BAR2 */
1255 
1256     void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
1257                         PCI BAR0 with dual-ULP support */
1258     void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
1259                         PCI BAR2 with dual-ULP support */
1260     void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
1261                         PCI BAR4 with dual-ULP support */
1262 #define PCI_64BIT_BAR0  0
1263 #define PCI_64BIT_BAR2  2
1264 #define PCI_64BIT_BAR4  4
1265     void __iomem *MBslimaddr;   /* virtual address for mbox cmds */
1266     void __iomem *HAregaddr;    /* virtual address for host attn reg */
1267     void __iomem *CAregaddr;    /* virtual address for chip attn reg */
1268     void __iomem *HSregaddr;    /* virtual address for host status
1269                        reg */
1270     void __iomem *HCregaddr;    /* virtual address for host ctl reg */
1271 
1272     struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
1273     struct lpfc_pgp   *port_gp;
1274     uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
1275     uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
1276 
1277     int brd_no;         /* FC board number */
1278     char SerialNumber[32];      /* adapter Serial Number */
1279     char OptionROMVersion[32];  /* adapter BIOS / Fcode version */
1280     char BIOSVersion[16];       /* Boot BIOS version */
1281     char ModelDesc[256];        /* Model Description */
1282     char ModelName[80];     /* Model Name */
1283     char ProgramType[256];      /* Program Type */
1284     char Port[20];          /* Port No */
1285     uint8_t vpd_flag;               /* VPD data flag */
1286 
1287 #define VPD_MODEL_DESC      0x1         /* valid vpd model description */
1288 #define VPD_MODEL_NAME      0x2         /* valid vpd model name */
1289 #define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
1290 #define VPD_PORT            0x8         /* valid vpd port data */
1291 #define VPD_MASK            0xf         /* mask for any vpd data */
1292 
1293 
1294     struct timer_list fcp_poll_timer;
1295     struct timer_list eratt_poll;
1296     uint32_t eratt_poll_interval;
1297 
1298     uint64_t bg_guard_err_cnt;
1299     uint64_t bg_apptag_err_cnt;
1300     uint64_t bg_reftag_err_cnt;
1301 
1302     /* fastpath list. */
1303     spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
1304     spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
1305     struct list_head lpfc_scsi_buf_list_get;
1306     struct list_head lpfc_scsi_buf_list_put;
1307     uint32_t total_scsi_bufs;
1308     struct list_head lpfc_iocb_list;
1309     uint32_t total_iocbq_bufs;
1310     struct list_head active_rrq_list;
1311     spinlock_t hbalock;
1312     struct work_struct  unblock_request_work; /* SCSI layer unblock IOs */
1313 
1314     /* dma_mem_pools */
1315     struct dma_pool *lpfc_sg_dma_buf_pool;
1316     struct dma_pool *lpfc_mbuf_pool;
1317     struct dma_pool *lpfc_hrb_pool; /* header receive buffer pool */
1318     struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
1319     struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
1320     struct dma_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
1321     struct dma_pool *lpfc_cmd_rsp_buf_pool;
1322     struct lpfc_dma_pool lpfc_mbuf_safety_pool;
1323 
1324     mempool_t *mbox_mem_pool;
1325     mempool_t *nlp_mem_pool;
1326     mempool_t *rrq_pool;
1327     mempool_t *active_rrq_pool;
1328 
1329     struct fc_host_statistics link_stats;
1330     enum lpfc_irq_chann_mode irq_chann_mode;
1331     enum intr_type_t intr_type;
1332     uint32_t intr_mode;
1333 #define LPFC_INTR_ERROR 0xFFFFFFFF
1334     struct list_head port_list;
1335     spinlock_t port_list_lock;  /* lock for port_list mutations */
1336     struct lpfc_vport *pport;   /* physical lpfc_vport pointer */
1337     uint16_t max_vpi;       /* Maximum virtual nports */
1338 #define LPFC_MAX_VPI    0xFF        /* Max number VPI supported 0 - 0xff */
1339 #define LPFC_MAX_VPORTS 0x100       /* Max vports per port, with pport */
1340     uint16_t max_vports;            /*
1341                      * For IOV HBAs max_vpi can change
1342                      * after a reset. max_vports is max
1343                      * number of vports present. This can
1344                      * be greater than max_vpi.
1345                      */
1346     uint16_t vpi_base;
1347     uint16_t vfi_base;
1348     unsigned long *vpi_bmask;   /* vpi allocation table */
1349     uint16_t *vpi_ids;
1350     uint16_t vpi_count;
1351     struct list_head lpfc_vpi_blk_list;
1352 
1353     /* Data structure used by fabric iocb scheduler */
1354     struct list_head fabric_iocb_list;
1355     atomic_t fabric_iocb_count;
1356     struct timer_list fabric_block_timer;
1357     unsigned long bit_flags;
1358     atomic_t num_rsrc_err;
1359     atomic_t num_cmd_success;
1360     unsigned long last_rsrc_error_time;
1361     unsigned long last_ramp_down_time;
1362 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1363     struct dentry *hba_debugfs_root;
1364     atomic_t debugfs_vport_count;
1365     struct dentry *debug_multixri_pools;
1366     struct dentry *debug_hbqinfo;
1367     struct dentry *debug_dumpHostSlim;
1368     struct dentry *debug_dumpHBASlim;
1369     struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1370     struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1371     struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1372     struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1373     struct dentry *debug_writeApp;   /* inject write app_tag errors */
1374     struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1375     struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1376     struct dentry *debug_readApp;    /* inject read app_tag errors */
1377     struct dentry *debug_readRef;    /* inject read ref_tag errors */
1378 
1379     struct dentry *debug_nvmeio_trc;
1380     struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1381     struct dentry *debug_hdwqinfo;
1382 #ifdef LPFC_HDWQ_LOCK_STAT
1383     struct dentry *debug_lockstat;
1384 #endif
1385     struct dentry *debug_cgn_buffer;
1386     struct dentry *debug_rx_monitor;
1387     struct dentry *debug_ras_log;
1388     atomic_t nvmeio_trc_cnt;
1389     uint32_t nvmeio_trc_size;
1390     uint32_t nvmeio_trc_output_idx;
1391 
1392     /* T10 DIF error injection */
1393     uint32_t lpfc_injerr_wgrd_cnt;
1394     uint32_t lpfc_injerr_wapp_cnt;
1395     uint32_t lpfc_injerr_wref_cnt;
1396     uint32_t lpfc_injerr_rgrd_cnt;
1397     uint32_t lpfc_injerr_rapp_cnt;
1398     uint32_t lpfc_injerr_rref_cnt;
1399     uint32_t lpfc_injerr_nportid;
1400     struct lpfc_name lpfc_injerr_wwpn;
1401     sector_t lpfc_injerr_lba;
1402 #define LPFC_INJERR_LBA_OFF (sector_t)(-1)
1403 
1404     struct dentry *debug_slow_ring_trc;
1405     struct lpfc_debugfs_trc *slow_ring_trc;
1406     atomic_t slow_ring_trc_cnt;
1407     /* iDiag debugfs sub-directory */
1408     struct dentry *idiag_root;
1409     struct dentry *idiag_pci_cfg;
1410     struct dentry *idiag_bar_acc;
1411     struct dentry *idiag_que_info;
1412     struct dentry *idiag_que_acc;
1413     struct dentry *idiag_drb_acc;
1414     struct dentry *idiag_ctl_acc;
1415     struct dentry *idiag_mbx_acc;
1416     struct dentry *idiag_ext_acc;
1417     uint8_t lpfc_idiag_last_eq;
1418 #endif
1419     uint16_t nvmeio_trc_on;
1420 
1421     /* Used for deferred freeing of ELS data buffers */
1422     struct list_head elsbuf;
1423     int elsbuf_cnt;
1424     int elsbuf_prev_cnt;
1425 
1426     uint8_t temp_sensor_support;
1427     /* Fields used for heart beat. */
1428     unsigned long last_completion_time;
1429     unsigned long skipped_hb;
1430     struct timer_list hb_tmofunc;
1431     struct timer_list rrq_tmr;
1432     enum hba_temp_state over_temp_state;
1433     /*
1434      * Following bit will be set for all buffer tags which are not
1435      * associated with any HBQ.
1436      */
1437 #define QUE_BUFTAG_BIT  (1<<31)
1438     uint32_t buffer_tag_count;
1439     /* data structure used for latency data collection */
1440 #define LPFC_NO_BUCKET     0
1441 #define LPFC_LINEAR_BUCKET 1
1442 #define LPFC_POWER2_BUCKET 2
1443     uint8_t  bucket_type;
1444     uint32_t bucket_base;
1445     uint32_t bucket_step;
1446 
1447 /* Maximum number of events that can be outstanding at any time*/
1448 #define LPFC_MAX_EVT_COUNT 512
1449     atomic_t fast_event_count;
1450     uint32_t fcoe_eventtag;
1451     uint32_t fcoe_eventtag_at_fcf_scan;
1452     uint32_t fcoe_cvl_eventtag;
1453     uint32_t fcoe_cvl_eventtag_attn;
1454     struct lpfc_fcf fcf;
1455     uint8_t fc_map[3];
1456     uint8_t valid_vlan;
1457     uint16_t vlan_id;
1458     struct list_head fcf_conn_rec_list;
1459 
1460     bool defer_flogi_acc_flag;
1461     uint16_t defer_flogi_acc_rx_id;
1462     uint16_t defer_flogi_acc_ox_id;
1463 
1464     spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1465     struct list_head ct_ev_waiters;
1466     struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1467     uint32_t ctx_idx;
1468     struct timer_list inactive_vmid_poll;
1469 
1470     /* RAS Support */
1471     struct lpfc_ras_fwlog ras_fwlog;
1472 
1473     uint32_t iocb_cnt;
1474     uint32_t iocb_max;
1475     atomic_t sdev_cnt;
1476     spinlock_t devicelock;  /* lock for luns list */
1477     mempool_t *device_data_mem_pool;
1478     struct list_head luns;
1479 #define LPFC_TRANSGRESSION_HIGH_TEMPERATURE 0x0080
1480 #define LPFC_TRANSGRESSION_LOW_TEMPERATURE  0x0040
1481 #define LPFC_TRANSGRESSION_HIGH_VOLTAGE     0x0020
1482 #define LPFC_TRANSGRESSION_LOW_VOLTAGE      0x0010
1483 #define LPFC_TRANSGRESSION_HIGH_TXBIAS      0x0008
1484 #define LPFC_TRANSGRESSION_LOW_TXBIAS       0x0004
1485 #define LPFC_TRANSGRESSION_HIGH_TXPOWER     0x0002
1486 #define LPFC_TRANSGRESSION_LOW_TXPOWER      0x0001
1487 #define LPFC_TRANSGRESSION_HIGH_RXPOWER     0x8000
1488 #define LPFC_TRANSGRESSION_LOW_RXPOWER      0x4000
1489     uint16_t sfp_alarm;
1490     uint16_t sfp_warning;
1491 
1492 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1493     uint16_t hdwqstat_on;
1494 #define LPFC_CHECK_OFF      0
1495 #define LPFC_CHECK_NVME_IO  1
1496 #define LPFC_CHECK_NVMET_IO 2
1497 #define LPFC_CHECK_SCSI_IO  4
1498     uint16_t ktime_on;
1499     uint64_t ktime_data_samples;
1500     uint64_t ktime_status_samples;
1501     uint64_t ktime_last_cmd;
1502     uint64_t ktime_seg1_total;
1503     uint64_t ktime_seg1_min;
1504     uint64_t ktime_seg1_max;
1505     uint64_t ktime_seg2_total;
1506     uint64_t ktime_seg2_min;
1507     uint64_t ktime_seg2_max;
1508     uint64_t ktime_seg3_total;
1509     uint64_t ktime_seg3_min;
1510     uint64_t ktime_seg3_max;
1511     uint64_t ktime_seg4_total;
1512     uint64_t ktime_seg4_min;
1513     uint64_t ktime_seg4_max;
1514     uint64_t ktime_seg5_total;
1515     uint64_t ktime_seg5_min;
1516     uint64_t ktime_seg5_max;
1517     uint64_t ktime_seg6_total;
1518     uint64_t ktime_seg6_min;
1519     uint64_t ktime_seg6_max;
1520     uint64_t ktime_seg7_total;
1521     uint64_t ktime_seg7_min;
1522     uint64_t ktime_seg7_max;
1523     uint64_t ktime_seg8_total;
1524     uint64_t ktime_seg8_min;
1525     uint64_t ktime_seg8_max;
1526     uint64_t ktime_seg9_total;
1527     uint64_t ktime_seg9_min;
1528     uint64_t ktime_seg9_max;
1529     uint64_t ktime_seg10_total;
1530     uint64_t ktime_seg10_min;
1531     uint64_t ktime_seg10_max;
1532 #endif
1533     /* CMF objects */
1534     struct lpfc_cgn_stat __percpu *cmf_stat;
1535     uint32_t cmf_interval_rate;  /* timer interval limit in ms */
1536     uint32_t cmf_timer_cnt;
1537 #define LPFC_CMF_INTERVAL 90
1538     uint64_t cmf_link_byte_count;
1539     uint64_t cmf_max_line_rate;
1540     uint64_t cmf_max_bytes_per_interval;
1541     uint64_t cmf_last_sync_bw;
1542 #define  LPFC_CMF_BLK_SIZE 512
1543     struct hrtimer cmf_timer;
1544     atomic_t cmf_bw_wait;
1545     atomic_t cmf_busy;
1546     atomic_t cmf_stop_io;      /* To block request and stop IO's */
1547     uint32_t cmf_active_mode;
1548     uint32_t cmf_info_per_interval;
1549 #define LPFC_MAX_CMF_INFO 32
1550     struct timespec64 cmf_latency;  /* Interval congestion timestamp */
1551     uint32_t cmf_last_ts;   /* Interval congestion time (ms) */
1552     uint32_t cmf_active_info;
1553 
1554     /* Signal / FPIN handling for Congestion Mgmt */
1555     u8 cgn_reg_fpin;           /* Negotiated value from RDF */
1556     u8 cgn_init_reg_fpin;      /* Initial value from READ_CONFIG */
1557 #define LPFC_CGN_FPIN_NONE  0x0
1558 #define LPFC_CGN_FPIN_WARN  0x1
1559 #define LPFC_CGN_FPIN_ALARM 0x2
1560 #define LPFC_CGN_FPIN_BOTH  (LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM)
1561 
1562     u8 cgn_reg_signal;          /* Negotiated value from EDC */
1563     u8 cgn_init_reg_signal;     /* Initial value from READ_CONFIG */
1564         /* cgn_reg_signal and cgn_init_reg_signal use
1565          * enum fc_edc_cg_signal_cap_types
1566          */
1567     u16 cgn_fpin_frequency;
1568 #define LPFC_FPIN_INIT_FREQ 0xffff
1569     u32 cgn_sig_freq;
1570     u32 cgn_acqe_cnt;
1571 
1572     /* RX monitor handling for CMF */
1573     struct rxtable_entry *rxtable;  /* RX_monitor information */
1574     atomic_t rxtable_idx_head;
1575 #define LPFC_RXMONITOR_TABLE_IN_USE     (LPFC_MAX_RXMONITOR_ENTRY + 73)
1576     atomic_t rxtable_idx_tail;
1577     atomic_t rx_max_read_cnt;       /* Maximum read bytes */
1578     uint64_t rx_block_cnt;
1579 
1580     /* Congestion parameters from flash */
1581     struct lpfc_cgn_param cgn_p;
1582 
1583     /* Statistics counter for ACQE cgn alarms and warnings */
1584     struct lpfc_cgn_acqe_stat cgn_acqe_stat;
1585 
1586     /* Congestion buffer information */
1587     struct lpfc_dmabuf *cgn_i;      /* Congestion Info buffer */
1588     atomic_t cgn_fabric_warn_cnt;   /* Total warning cgn events for info */
1589     atomic_t cgn_fabric_alarm_cnt;  /* Total alarm cgn events for info */
1590     atomic_t cgn_sync_warn_cnt;     /* Total warning events for SYNC wqe */
1591     atomic_t cgn_sync_alarm_cnt;    /* Total alarm events for SYNC wqe */
1592     atomic_t cgn_driver_evt_cnt;    /* Total driver cgn events for fmw */
1593     atomic_t cgn_latency_evt_cnt;
1594     struct timespec64 cgn_daily_ts;
1595     atomic64_t cgn_latency_evt;     /* Avg latency per minute */
1596     unsigned long cgn_evt_timestamp;
1597 #define LPFC_CGN_TIMER_TO_MIN   60000 /* ms in a minute */
1598     uint32_t cgn_evt_minute;
1599 #define LPFC_SEC_MIN        60
1600 #define LPFC_MIN_HOUR       60
1601 #define LPFC_HOUR_DAY       24
1602 #define LPFC_MIN_DAY        (LPFC_MIN_HOUR * LPFC_HOUR_DAY)
1603 
1604     struct hlist_node cpuhp;    /* used for cpuhp per hba callback */
1605     struct timer_list cpuhp_poll_timer;
1606     struct list_head poll_list; /* slowpath eq polling list */
1607 #define LPFC_POLL_HB    1       /* slowpath heartbeat */
1608 #define LPFC_POLL_FASTPATH  0   /* called from fastpath */
1609 #define LPFC_POLL_SLOWPATH  1   /* called from slowpath */
1610 
1611     char os_host_name[MAXHOSTNAMELEN];
1612 
1613     /* SCSI host template information - for physical port */
1614     struct scsi_host_template port_template;
1615     /* SCSI host template information - for all vports */
1616     struct scsi_host_template vport_template;
1617     atomic_t dbg_log_idx;
1618     atomic_t dbg_log_cnt;
1619     atomic_t dbg_log_dmping;
1620     struct dbg_log_ent dbg_log[DBG_LOG_SZ];
1621 };
1622 
1623 #define LPFC_MAX_RXMONITOR_ENTRY    800
1624 #define LPFC_MAX_RXMONITOR_DUMP     32
1625 struct rxtable_entry {
1626     uint64_t cmf_bytes; /* Total no of read bytes for CMF_SYNC_WQE */
1627     uint64_t total_bytes;   /* Total no of read bytes requested */
1628     uint64_t rcv_bytes;     /* Total no of read bytes completed */
1629     uint64_t avg_io_size;
1630     uint64_t avg_io_latency;/* Average io latency in microseconds */
1631     uint64_t max_read_cnt;  /* Maximum read bytes */
1632     uint64_t max_bytes_per_interval;
1633     uint32_t cmf_busy;
1634     uint32_t cmf_info;      /* CMF_SYNC_WQE info */
1635     uint32_t io_cnt;
1636     uint32_t timer_utilization;
1637     uint32_t timer_interval;
1638 };
1639 
1640 static inline struct Scsi_Host *
1641 lpfc_shost_from_vport(struct lpfc_vport *vport)
1642 {
1643     return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1644 }
1645 
1646 static inline void
1647 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1648 {
1649     if (phba->cfg_topology == FLAGS_LOCAL_LB)
1650         phba->link_flag |= LS_LOOPBACK_MODE;
1651     else
1652         phba->link_flag &= ~LS_LOOPBACK_MODE;
1653 }
1654 
1655 static inline int
1656 lpfc_is_link_up(struct lpfc_hba *phba)
1657 {
1658     return  phba->link_state == LPFC_LINK_UP ||
1659         phba->link_state == LPFC_CLEAR_LA ||
1660         phba->link_state == LPFC_HBA_READY;
1661 }
1662 
1663 static inline void
1664 lpfc_worker_wake_up(struct lpfc_hba *phba)
1665 {
1666     /* Set the lpfc data pending flag */
1667     set_bit(LPFC_DATA_READY, &phba->data_flags);
1668 
1669     /* Wake up worker thread */
1670     wake_up(&phba->work_waitq);
1671     return;
1672 }
1673 
1674 static inline int
1675 lpfc_readl(void __iomem *addr, uint32_t *data)
1676 {
1677     uint32_t temp;
1678     temp = readl(addr);
1679     if (temp == 0xffffffff)
1680         return -EIO;
1681     *data = temp;
1682     return 0;
1683 }
1684 
1685 static inline int
1686 lpfc_sli_read_hs(struct lpfc_hba *phba)
1687 {
1688     /*
1689      * There was a link/board error. Read the status register to retrieve
1690      * the error event and process it.
1691      */
1692     phba->sli.slistat.err_attn_event++;
1693 
1694     /* Save status info and check for unplug error */
1695     if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1696         lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1697         lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1698         return -EIO;
1699     }
1700 
1701     /* Clear chip Host Attention error bit */
1702     writel(HA_ERATT, phba->HAregaddr);
1703     readl(phba->HAregaddr); /* flush */
1704     phba->pport->stopped = 1;
1705 
1706     return 0;
1707 }
1708 
1709 static inline struct lpfc_sli_ring *
1710 lpfc_phba_elsring(struct lpfc_hba *phba)
1711 {
1712     /* Return NULL if sli_rev has become invalid due to bad fw */
1713     if (phba->sli_rev != LPFC_SLI_REV4  &&
1714         phba->sli_rev != LPFC_SLI_REV3  &&
1715         phba->sli_rev != LPFC_SLI_REV2)
1716         return NULL;
1717 
1718     if (phba->sli_rev == LPFC_SLI_REV4) {
1719         if (phba->sli4_hba.els_wq)
1720             return phba->sli4_hba.els_wq->pring;
1721         else
1722             return NULL;
1723     }
1724     return &phba->sli.sli3_ring[LPFC_ELS_RING];
1725 }
1726 
1727 /**
1728  * lpfc_next_online_cpu - Finds next online CPU on cpumask
1729  * @mask: Pointer to phba's cpumask member.
1730  * @start: starting cpu index
1731  *
1732  * Note: If no valid cpu found, then nr_cpu_ids is returned.
1733  *
1734  **/
1735 static inline unsigned int
1736 lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
1737 {
1738     unsigned int cpu_it;
1739 
1740     for_each_cpu_wrap(cpu_it, mask, start) {
1741         if (cpu_online(cpu_it))
1742             break;
1743     }
1744 
1745     return cpu_it;
1746 }
1747 /**
1748  * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1749  * @phba: Pointer to HBA context object.
1750  * @q: The Event Queue to update.
1751  * @delay: The delay value (in us) to be written.
1752  *
1753  **/
1754 static inline void
1755 lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1756                u32 delay)
1757 {
1758     struct lpfc_register reg_data;
1759 
1760     reg_data.word0 = 0;
1761     bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1762     bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1763     writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1764     eq->q_mode = delay;
1765 }
1766 
1767 
1768 /*
1769  * Macro that declares tables and a routine to perform enum type to
1770  * ascii string lookup.
1771  *
1772  * Defines a <key,value> table for an enum. Uses xxx_INIT defines for
1773  * the enum to populate the table.  Macro defines a routine (named
1774  * by caller) that will search all elements of the table for the key
1775  * and return the name string if found or "Unrecognized" if not found.
1776  */
1777 #define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init)      \
1778 static struct {                             \
1779     enum enum_name      value;                  \
1780     char            *name;                  \
1781 } fc_##enum_name##_e2str_names[] = enum_init;               \
1782 static const char *routine(enum enum_name table_key)            \
1783 {                                   \
1784     int i;                              \
1785     char *name = "Unrecognized";                    \
1786                                     \
1787     for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
1788         if (fc_##enum_name##_e2str_names[i].value == table_key) {\
1789             name = fc_##enum_name##_e2str_names[i].name;    \
1790             break;                      \
1791         }                           \
1792     }                               \
1793     return name;                            \
1794 }
1795 
1796 /**
1797  * lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
1798  * @phba: Pointer to HBA context object.
1799  *
1800  * Relationship between the enable, target support and if vmid tag is required
1801  * for the particular combination
1802  * ---------------------------------------------------
1803  * Switch    Enable Flag  Target Support  VMID Needed
1804  * ---------------------------------------------------
1805  * App Id     0              NA              N
1806  * App Id     1               0              N
1807  * App Id     1               1              Y
1808  * Pr Tag     0              NA              N
1809  * Pr Tag     1               0              N
1810  * Pr Tag     1               1              Y
1811  * Pr Tag     2               *              Y
1812  ---------------------------------------------------
1813  *
1814  **/
1815 static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
1816 {
1817     return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
1818 }
1819 
1820 static inline
1821 u8 get_job_ulpstatus(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1822 {
1823     if (phba->sli_rev == LPFC_SLI_REV4)
1824         return bf_get(lpfc_wcqe_c_status, &iocbq->wcqe_cmpl);
1825     else
1826         return iocbq->iocb.ulpStatus;
1827 }
1828 
1829 static inline
1830 u32 get_job_word4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1831 {
1832     if (phba->sli_rev == LPFC_SLI_REV4)
1833         return iocbq->wcqe_cmpl.parameter;
1834     else
1835         return iocbq->iocb.un.ulpWord[4];
1836 }
1837 
1838 static inline
1839 u8 get_job_cmnd(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1840 {
1841     if (phba->sli_rev == LPFC_SLI_REV4)
1842         return bf_get(wqe_cmnd, &iocbq->wqe.generic.wqe_com);
1843     else
1844         return iocbq->iocb.ulpCommand;
1845 }
1846 
1847 static inline
1848 u16 get_job_ulpcontext(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1849 {
1850     if (phba->sli_rev == LPFC_SLI_REV4)
1851         return bf_get(wqe_ctxt_tag, &iocbq->wqe.generic.wqe_com);
1852     else
1853         return iocbq->iocb.ulpContext;
1854 }
1855 
1856 static inline
1857 u16 get_job_rcvoxid(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1858 {
1859     if (phba->sli_rev == LPFC_SLI_REV4)
1860         return bf_get(wqe_rcvoxid, &iocbq->wqe.generic.wqe_com);
1861     else
1862         return iocbq->iocb.unsli3.rcvsli3.ox_id;
1863 }
1864 
1865 static inline
1866 u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1867 {
1868     if (phba->sli_rev == LPFC_SLI_REV4)
1869         return iocbq->wcqe_cmpl.total_data_placed;
1870     else
1871         return iocbq->iocb.un.genreq64.bdl.bdeSize;
1872 }
1873 
1874 static inline
1875 u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1876 {
1877     if (phba->sli_rev == LPFC_SLI_REV4)
1878         return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
1879     else
1880         return iocbq->iocb.un.acxri.abortIoTag;
1881 }
1882 
1883 static inline
1884 u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1885 {
1886     if (phba->sli_rev == LPFC_SLI_REV4)
1887         return bf_get(wqe_els_did, &iocbq->wqe.els_req.wqe_dest);
1888     else
1889         return iocbq->iocb.un.elsreq64.remoteID;
1890 }
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