1/*******************************************************************
   2 * This file is part of the Emulex Linux Device Driver for         *
   3 * Fibre Channel Host Bus Adapters.                                *
   4 * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
   5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
   6 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7 * EMULEX and SLI are trademarks of Emulex.                        *
   8 * www.broadcom.com                                                *
   9 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10 *                                                                 *
  11 * This program is free software; you can redistribute it and/or   *
  12 * modify it under the terms of version 2 of the GNU General       *
  13 * Public License as published by the Free Software Foundation.    *
  14 * This program is distributed in the hope that it will be useful. *
  15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20 * more details, a copy of which can be found in the file COPYING  *
  21 * included with this package.                                     *
  22 *******************************************************************/
  23
  24#include <scsi/scsi_host.h>
  25#include <linux/hashtable.h>
  26#include <linux/ktime.h>
  27#include <linux/workqueue.h>
  28
  29#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
  30#define CONFIG_SCSI_LPFC_DEBUG_FS
  31#endif
  32
  33struct lpfc_sli2_slim;
  34
  35#define ELX_MODEL_NAME_SIZE	80
  36#define ELX_FW_NAME_SIZE	84
  37
  38#define LPFC_PCI_DEV_LP		0x1
  39#define LPFC_PCI_DEV_OC		0x2
  40
  41#define LPFC_SLI_REV2		2
  42#define LPFC_SLI_REV3		3
  43#define LPFC_SLI_REV4		4
  44
  45#define LPFC_MAX_TARGET		4096	/* max number of targets supported */
  46#define LPFC_MAX_DISC_THREADS	64	/* max outstanding discovery els
  47					   requests */
  48#define LPFC_MAX_NS_RETRY	3	/* Number of retry attempts to contact
  49					   the NameServer  before giving up. */
  50#define LPFC_CMD_PER_LUN	3	/* max outstanding cmds per lun */
  51#define LPFC_DEFAULT_SG_SEG_CNT 64	/* sg element count per scsi cmnd */
  52
  53#define LPFC_DEFAULT_XPSGL_SIZE	256
  54#define LPFC_MAX_SG_TABLESIZE	0xffff
  55#define LPFC_MIN_SG_SLI4_BUF_SZ	0x800	/* based on LPFC_DEFAULT_SG_SEG_CNT */
  56#define LPFC_MAX_BG_SLI4_SEG_CNT_DIF 128 /* sg element count for BlockGuard */
  57#define LPFC_MAX_SG_SEG_CNT_DIF 512	/* sg element count per scsi cmnd  */
  58#define LPFC_MAX_SG_SEG_CNT	4096	/* sg element count per scsi cmnd */
  59#define LPFC_MIN_SG_SEG_CNT	32	/* sg element count per scsi cmnd */
  60#define LPFC_MAX_SGL_SEG_CNT	512	/* SGL element count per scsi cmnd */
  61#define LPFC_MAX_BPL_SEG_CNT	4096	/* BPL element count per scsi cmnd */
  62#define LPFC_MAX_NVME_SEG_CNT	256	/* max SGL element cnt per NVME cmnd */
  63
  64#define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
  65#define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
  66#define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
  67#define LPFC_VNAME_LEN		100	/* vport symbolic name length */
  68#define LPFC_TGTQ_RAMPUP_PCENT	5	/* Target queue rampup in percentage */
  69#define LPFC_MIN_TGT_QDEPTH	10
  70#define LPFC_MAX_TGT_QDEPTH	0xFFFF
  71
  72/*
  73 * Following time intervals are used of adjusting SCSI device
  74 * queue depths when there are driver resource error or Firmware
  75 * resource error.
  76 */
  77/* 1 Second */
  78#define QUEUE_RAMP_DOWN_INTERVAL	(msecs_to_jiffies(1000 * 1))
  79
  80/* Number of exchanges reserved for discovery to complete */
  81#define LPFC_DISC_IOCB_BUFF_COUNT 20
  82
  83#define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
  84#define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
  85
  86/* Error Attention event polling interval */
  87#define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
  88
  89/* Define macros for 64 bit support */
  90#define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
  91#define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
  92#define getPaddr(high, low)  ((dma_addr_t)( \
  93			     (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
  94/* Provide maximum configuration definitions. */
  95#define LPFC_DRVR_TIMEOUT	16	/* driver iocb timeout value in sec */
  96#define FC_MAX_ADPTMSG		64
  97
  98#define MAX_HBAEVT	32
  99#define MAX_HBAS_NO_RESET 16
 100
 101/* Number of MSI-X vectors the driver uses */
 102#define LPFC_MSIX_VECTORS	2
 103
 104/* lpfc wait event data ready flag */
 105#define LPFC_DATA_READY		0	/* bit 0 */
 106
 107/* queue dump line buffer size */
 108#define LPFC_LBUF_SZ		128
 109
 110/* mailbox system shutdown options */
 111#define LPFC_MBX_NO_WAIT	0
 112#define LPFC_MBX_WAIT		1
 113
 114#define LPFC_CFG_PARAM_MAGIC_NUM 0xFEAA0005
 115#define LPFC_PORT_CFG_NAME "/cfg/port.cfg"
 116
 117#define lpfc_rangecheck(val, min, max) \
 118	((uint)(val) >= (uint)(min) && (val) <= (max))
 119
 120enum lpfc_polling_flags {
 121	ENABLE_FCP_RING_POLLING = 0x1,
 122	DISABLE_FCP_RING_INT    = 0x2
 123};
 124
 125struct perf_prof {
 126	uint16_t cmd_cpu[40];
 127	uint16_t rsp_cpu[40];
 128	uint16_t qh_cpu[40];
 129	uint16_t wqidx[40];
 130};
 131
 132/*
 133 * Provide for FC4 TYPE x28 - NVME.  The
 134 * bit mask for FCP and NVME is 0x8 identically
 135 * because they are 32 bit positions distance.
 136 */
 137#define LPFC_FC4_TYPE_BITMASK	0x00000100
 138
 139/* Provide DMA memory definitions the driver uses per port instance. */
 140struct lpfc_dmabuf {
 141	struct list_head list;
 142	void *virt;		/* virtual address ptr */
 143	dma_addr_t phys;	/* mapped address */
 144	uint32_t   buffer_tag;	/* used for tagged queue ring */
 145};
 146
 147struct lpfc_nvmet_ctxbuf {
 148	struct list_head list;
 149	struct lpfc_async_xchg_ctx *context;
 150	struct lpfc_iocbq *iocbq;
 151	struct lpfc_sglq *sglq;
 152	struct work_struct defer_work;
 153};
 154
 155struct lpfc_dma_pool {
 156	struct lpfc_dmabuf   *elements;
 157	uint32_t    max_count;
 158	uint32_t    current_count;
 159};
 160
 161struct hbq_dmabuf {
 162	struct lpfc_dmabuf hbuf;
 163	struct lpfc_dmabuf dbuf;
 164	uint16_t total_size;
 165	uint16_t bytes_recv;
 166	uint32_t tag;
 167	struct lpfc_cq_event cq_event;
 168	unsigned long time_stamp;
 169	void *context;
 170};
 171
 172struct rqb_dmabuf {
 173	struct lpfc_dmabuf hbuf;
 174	struct lpfc_dmabuf dbuf;
 175	uint16_t total_size;
 176	uint16_t bytes_recv;
 177	uint16_t idx;
 178	struct lpfc_queue *hrq;	  /* ptr to associated Header RQ */
 179	struct lpfc_queue *drq;	  /* ptr to associated Data RQ */
 180};
 181
 182/* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 183#define MEM_PRI		0x100
 184
 185
 186/****************************************************************************/
 187/*      Device VPD save area                                                */
 188/****************************************************************************/
 189typedef struct lpfc_vpd {
 190	uint32_t status;	/* vpd status value */
 191	uint32_t length;	/* number of bytes actually returned */
 192	struct {
 193		uint32_t rsvd1;	/* Revision numbers */
 194		uint32_t biuRev;
 195		uint32_t smRev;
 196		uint32_t smFwRev;
 197		uint32_t endecRev;
 198		uint16_t rBit;
 199		uint8_t fcphHigh;
 200		uint8_t fcphLow;
 201		uint8_t feaLevelHigh;
 202		uint8_t feaLevelLow;
 203		uint32_t postKernRev;
 204		uint32_t opFwRev;
 205		uint8_t opFwName[16];
 206		uint32_t sli1FwRev;
 207		uint8_t sli1FwName[16];
 208		uint32_t sli2FwRev;
 209		uint8_t sli2FwName[16];
 210	} rev;
 211	struct {
 212#ifdef __BIG_ENDIAN_BITFIELD
 213		uint32_t rsvd3  :20;  /* Reserved                             */
 214		uint32_t rsvd2	: 3;  /* Reserved                             */
 215		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
 216		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
 217		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 218		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 219		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 220		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 221		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
 222		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
 223		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
 224#else	/*  __LITTLE_ENDIAN */
 225		uint32_t cmr	: 1;  /* Configure Max RPIs                   */
 226		uint32_t cmx	: 1;  /* Configure Max XRIs                   */
 227		uint32_t cerbm	: 1;  /* Configure Enhanced Receive Buf Mgmt  */
 228		uint32_t cinb   : 1;  /* Enable Interrupt Notification Block  */
 229		uint32_t chbs   : 1;  /* Cofigure Host Backing store          */
 230		uint32_t csah   : 1;  /* Configure Synchronous Abort Handling */
 231		uint32_t ccrp   : 1;  /* Config Command Ring Polling          */
 232		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
 233		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
 234		uint32_t rsvd2	: 3;  /* Reserved                             */
 235		uint32_t rsvd3  :20;  /* Reserved                             */
 236#endif
 237	} sli3Feat;
 238} lpfc_vpd_t;
 239
 240
 241/*
 242 * lpfc stat counters
 243 */
 244struct lpfc_stats {
 245	/* Statistics for ELS commands */
 246	uint32_t elsLogiCol;
 247	uint32_t elsRetryExceeded;
 248	uint32_t elsXmitRetry;
 249	uint32_t elsDelayRetry;
 250	uint32_t elsRcvDrop;
 251	uint32_t elsRcvFrame;
 252	uint32_t elsRcvRSCN;
 253	uint32_t elsRcvRNID;
 254	uint32_t elsRcvFARP;
 255	uint32_t elsRcvFARPR;
 256	uint32_t elsRcvFLOGI;
 257	uint32_t elsRcvPLOGI;
 258	uint32_t elsRcvADISC;
 259	uint32_t elsRcvPDISC;
 260	uint32_t elsRcvFAN;
 261	uint32_t elsRcvLOGO;
 262	uint32_t elsRcvPRLO;
 263	uint32_t elsRcvPRLI;
 264	uint32_t elsRcvLIRR;
 265	uint32_t elsRcvRLS;
 266	uint32_t elsRcvRPL;
 267	uint32_t elsRcvRRQ;
 268	uint32_t elsRcvRTV;
 269	uint32_t elsRcvECHO;
 270	uint32_t elsRcvLCB;
 271	uint32_t elsRcvRDP;
 272	uint32_t elsRcvRDF;
 273	uint32_t elsXmitFLOGI;
 274	uint32_t elsXmitFDISC;
 275	uint32_t elsXmitPLOGI;
 276	uint32_t elsXmitPRLI;
 277	uint32_t elsXmitADISC;
 278	uint32_t elsXmitLOGO;
 279	uint32_t elsXmitSCR;
 280	uint32_t elsXmitRSCN;
 281	uint32_t elsXmitRNID;
 282	uint32_t elsXmitFARP;
 283	uint32_t elsXmitFARPR;
 284	uint32_t elsXmitACC;
 285	uint32_t elsXmitLSRJT;
 286
 287	uint32_t frameRcvBcast;
 288	uint32_t frameRcvMulti;
 289	uint32_t strayXmitCmpl;
 290	uint32_t frameXmitDelay;
 291	uint32_t xriCmdCmpl;
 292	uint32_t xriStatErr;
 293	uint32_t LinkUp;
 294	uint32_t LinkDown;
 295	uint32_t LinkMultiEvent;
 296	uint32_t NoRcvBuf;
 297	uint32_t fcpCmd;
 298	uint32_t fcpCmpl;
 299	uint32_t fcpRspErr;
 300	uint32_t fcpRemoteStop;
 301	uint32_t fcpPortRjt;
 302	uint32_t fcpPortBusy;
 303	uint32_t fcpError;
 304	uint32_t fcpLocalErr;
 305};
 306
 307struct lpfc_hba;
 308
 309
 310#define LPFC_VMID_TIMER   300	/* timer interval in seconds */
 311
 312#define LPFC_MAX_VMID_SIZE      256
 
 313
 314union lpfc_vmid_io_tag {
 315	u32 app_id;	/* App Id vmid */
 316	u8 cs_ctl_vmid;	/* Priority tag vmid */
 317};
 318
 319#define JIFFIES_PER_HR	(HZ * 60 * 60)
 320
 321struct lpfc_vmid {
 322	u8 flag;
 323#define LPFC_VMID_SLOT_FREE     0x0
 324#define LPFC_VMID_SLOT_USED     0x1
 325#define LPFC_VMID_REQ_REGISTER  0x2
 326#define LPFC_VMID_REGISTERED    0x4
 327#define LPFC_VMID_DE_REGISTER   0x8
 328	char host_vmid[LPFC_MAX_VMID_SIZE];
 329	union lpfc_vmid_io_tag un;
 330	struct hlist_node hnode;
 331	u64 io_rd_cnt;
 332	u64 io_wr_cnt;
 333	u8 vmid_len;
 334	u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */
 335	u32 hash_index;
 336	u64 __percpu *last_io_time;
 337};
 338
 339#define lpfc_vmid_is_type_priority_tag(vport)\
 340	(vport->vmid_priority_tagging ? 1 : 0)
 341
 342#define LPFC_VMID_HASH_SIZE     256
 343#define LPFC_VMID_HASH_MASK     255
 344#define LPFC_VMID_HASH_SHIFT    6
 345
 346struct lpfc_vmid_context {
 347	struct lpfc_vmid *vmp;
 348	struct lpfc_nodelist *nlp;
 349	bool instantiated;
 350};
 351
 352struct lpfc_vmid_priority_range {
 353	u8 low;
 354	u8 high;
 355	u8 qos;
 356};
 357
 358struct lpfc_vmid_priority_info {
 359	u32 num_descriptors;
 360	struct lpfc_vmid_priority_range *vmid_range;
 361};
 362
 363#define QFPA_EVEN_ONLY 0x01
 364#define QFPA_ODD_ONLY  0x02
 365#define QFPA_EVEN_ODD  0x03
 366
 367enum discovery_state {
 368	LPFC_VPORT_UNKNOWN     =  0,    /* vport state is unknown */
 369	LPFC_VPORT_FAILED      =  1,    /* vport has failed */
 370	LPFC_LOCAL_CFG_LINK    =  6,    /* local NPORT Id configured */
 371	LPFC_FLOGI             =  7,    /* FLOGI sent to Fabric */
 372	LPFC_FDISC             =  8,    /* FDISC sent for vport */
 373	LPFC_FABRIC_CFG_LINK   =  9,    /* Fabric assigned NPORT Id
 374				         * configured */
 375	LPFC_NS_REG            =  10,   /* Register with NameServer */
 376	LPFC_NS_QRY            =  11,   /* Query NameServer for NPort ID list */
 377	LPFC_BUILD_DISC_LIST   =  12,   /* Build ADISC and PLOGI lists for
 378				         * device authentication / discovery */
 379	LPFC_DISC_AUTH         =  13,   /* Processing ADISC list */
 380	LPFC_VPORT_READY       =  32,
 381};
 382
 383enum hba_state {
 384	LPFC_LINK_UNKNOWN    =   0,   /* HBA state is unknown */
 385	LPFC_WARM_START      =   1,   /* HBA state after selective reset */
 386	LPFC_INIT_START      =   2,   /* Initial state after board reset */
 387	LPFC_INIT_MBX_CMDS   =   3,   /* Initialize HBA with mbox commands */
 388	LPFC_LINK_DOWN       =   4,   /* HBA initialized, link is down */
 389	LPFC_LINK_UP         =   5,   /* Link is up  - issue READ_LA */
 390	LPFC_CLEAR_LA        =   6,   /* authentication cmplt - issue
 391				       * CLEAR_LA */
 392	LPFC_HBA_READY       =  32,
 393	LPFC_HBA_ERROR       =  -1
 394};
 395
 396struct lpfc_trunk_link_state {
 397	enum hba_state state;
 398	uint8_t fault;
 399};
 400
 401struct lpfc_trunk_link  {
 402	struct lpfc_trunk_link_state link0,
 403				     link1,
 404				     link2,
 405				     link3;
 406	u32 phy_lnk_speed;
 407};
 408
 409/* Format of congestion module parameters */
 410struct lpfc_cgn_param {
 411	uint32_t cgn_param_magic;
 412	uint8_t  cgn_param_version;	/* version 1 */
 413	uint8_t  cgn_param_mode;	/* 0=off 1=managed 2=monitor only */
 414#define LPFC_CFG_OFF		0
 415#define LPFC_CFG_MANAGED	1
 416#define LPFC_CFG_MONITOR	2
 417	uint8_t  cgn_rsvd1;
 418	uint8_t  cgn_rsvd2;
 419	uint8_t  cgn_param_level0;
 420	uint8_t  cgn_param_level1;
 421	uint8_t  cgn_param_level2;
 422	uint8_t  byte11;
 423	uint8_t  byte12;
 424	uint8_t  byte13;
 425	uint8_t  byte14;
 426	uint8_t  byte15;
 427};
 428
 429/* Max number of days of congestion data */
 430#define LPFC_MAX_CGN_DAYS 10
 431
 432struct lpfc_cgn_ts {
 433	uint8_t month;
 434	uint8_t day;
 435	uint8_t year;
 436	uint8_t hour;
 437	uint8_t minute;
 438	uint8_t second;
 439};
 440
 441/* Format of congestion buffer info
 442 * This structure defines memory thats allocated and registered with
 443 * the HBA firmware. When adding or removing fields from this structure
 444 * the alignment must match the HBA firmware.
 445 */
 446
 447struct lpfc_cgn_info {
 448	/* Header */
 449	__le16   cgn_info_size;		/* is sizeof(struct lpfc_cgn_info) */
 450	uint8_t  cgn_info_version;	/* represents format of structure */
 451#define LPFC_CGN_INFO_V1	1
 452#define LPFC_CGN_INFO_V2	2
 453#define LPFC_CGN_INFO_V3	3
 454#define LPFC_CGN_INFO_V4	4
 455	uint8_t  cgn_info_mode;		/* 0=off 1=managed 2=monitor only */
 456	uint8_t  cgn_info_detect;
 457	uint8_t  cgn_info_action;
 458	uint8_t  cgn_info_level0;
 459	uint8_t  cgn_info_level1;
 460	uint8_t  cgn_info_level2;
 461
 462	/* Start Time */
 463	struct lpfc_cgn_ts base_time;
 
 
 
 
 
 464
 465	/* minute / hours / daily indices */
 466	uint8_t  cgn_index_minute;
 467	uint8_t  cgn_index_hour;
 468	uint8_t  cgn_index_day;
 469
 470	__le16   cgn_warn_freq;
 471	__le16   cgn_alarm_freq;
 472	__le16   cgn_lunq;
 473	uint8_t  cgn_pad1[8];
 474
 475	/* Driver Information */
 476	__le16   cgn_drvr_min[60];
 477	__le32   cgn_drvr_hr[24];
 478	__le32   cgn_drvr_day[LPFC_MAX_CGN_DAYS];
 479
 480	/* Congestion Warnings */
 481	__le16   cgn_warn_min[60];
 482	__le32   cgn_warn_hr[24];
 483	__le32   cgn_warn_day[LPFC_MAX_CGN_DAYS];
 484
 485	/* Latency Information */
 486	__le32   cgn_latency_min[60];
 487	__le32   cgn_latency_hr[24];
 488	__le32   cgn_latency_day[LPFC_MAX_CGN_DAYS];
 489
 490	/* Bandwidth Information */
 491	__le16   cgn_bw_min[60];
 492	__le16   cgn_bw_hr[24];
 493	__le16   cgn_bw_day[LPFC_MAX_CGN_DAYS];
 494
 495	/* Congestion Alarms */
 496	__le16   cgn_alarm_min[60];
 497	__le32   cgn_alarm_hr[24];
 498	__le32   cgn_alarm_day[LPFC_MAX_CGN_DAYS];
 499
 500	struct_group(cgn_stat,
 501		uint8_t  cgn_stat_npm;		/* Notifications per minute */
 502
 503		/* Start Time */
 504		struct lpfc_cgn_ts stat_start;	/* Base time */
 505		uint8_t cgn_pad2;
 
 
 
 
 506
 507		__le32   cgn_notification;
 508		__le32   cgn_peer_notification;
 509		__le32   link_integ_notification;
 510		__le32   delivery_notification;
 511		struct lpfc_cgn_ts stat_fpin;	/* Last congestion notification FPIN */
 512		struct lpfc_cgn_ts stat_peer;	/* Last peer congestion FPIN */
 513		struct lpfc_cgn_ts stat_lnk;	/* Last link integrity FPIN */
 514		struct lpfc_cgn_ts stat_delivery;	/* Last delivery notification FPIN */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 515	);
 516
 517	__le32   cgn_info_crc;
 518#define LPFC_CGN_CRC32_MAGIC_NUMBER	0x1EDC6F41
 519#define LPFC_CGN_CRC32_SEED		0xFFFFFFFF
 520};
 521
 522#define LPFC_CGN_INFO_SZ	(sizeof(struct lpfc_cgn_info) -  \
 523				sizeof(uint32_t))
 524
 525struct lpfc_cgn_stat {
 526	atomic64_t total_bytes;
 527	atomic64_t rcv_bytes;
 528	atomic64_t rx_latency;
 529#define LPFC_CGN_NOT_SENT	0xFFFFFFFFFFFFFFFFLL
 530	atomic_t rx_io_cnt;
 531};
 532
 533struct lpfc_cgn_acqe_stat {
 534	atomic64_t alarm;
 535	atomic64_t warn;
 536};
 537
 538struct lpfc_vport {
 539	struct lpfc_hba *phba;
 540	struct list_head listentry;
 541	uint8_t port_type;
 542#define LPFC_PHYSICAL_PORT 1
 543#define LPFC_NPIV_PORT  2
 544#define LPFC_FABRIC_PORT 3
 545	enum discovery_state port_state;
 546
 547	uint16_t vpi;
 548	uint16_t vfi;
 549	uint8_t vpi_state;
 550#define LPFC_VPI_REGISTERED	0x1
 551
 552	uint32_t fc_flag;	/* FC flags */
 553/* Several of these flags are HBA centric and should be moved to
 554 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
 555 */
 556#define FC_PT2PT                0x1	 /* pt2pt with no fabric */
 557#define FC_PT2PT_PLOGI          0x2	 /* pt2pt initiate PLOGI */
 558#define FC_DISC_TMO             0x4	 /* Discovery timer running */
 559#define FC_PUBLIC_LOOP          0x8	 /* Public loop */
 560#define FC_LBIT                 0x10	 /* LOGIN bit in loopinit set */
 561#define FC_RSCN_MODE            0x20	 /* RSCN cmd rcv'ed */
 562#define FC_NLP_MORE             0x40	 /* More node to process in node tbl */
 563#define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */
 564#define FC_FABRIC               0x100	 /* We are fabric attached */
 565#define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 566#define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
 567#define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
 568#define FC_PT2PT_NO_NVME        0x1000   /* Don't send NVME PRLI */
 569#define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
 570#define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
 571#define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
 572#define FC_BYPASSED_MODE        0x20000	 /* NPort is in bypassed mode */
 573#define FC_VPORT_NEEDS_REG_VPI	0x80000  /* Needs to have its vpi registered */
 574#define FC_RSCN_DEFERRED	0x100000 /* A deferred RSCN being processed */
 575#define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
 576#define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
 577#define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
 578#define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
 579#define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
 580
 581	uint32_t ct_flags;
 582#define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
 583#define FC_CT_RNN_ID		0x2	 /* RNN_ID accepted by switch */
 584#define FC_CT_RSNN_NN		0x4	 /* RSNN_NN accepted by switch */
 585#define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */
 586#define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */
 587#define FC_CT_RPRT_DEFER	0x20	 /* Defer issuing FDMI RPRT */
 588
 589	struct list_head fc_nodes;
 590
 591	/* Keep counters for the number of entries in each list. */
 592	uint16_t fc_plogi_cnt;
 593	uint16_t fc_adisc_cnt;
 594	uint16_t fc_reglogin_cnt;
 595	uint16_t fc_prli_cnt;
 596	uint16_t fc_unmap_cnt;
 597	uint16_t fc_map_cnt;
 598	uint16_t fc_npr_cnt;
 599	uint16_t fc_unused_cnt;
 600	struct serv_parm fc_sparam;	/* buffer for our service parameters */
 601
 602	uint32_t fc_myDID;	/* fibre channel S_ID */
 603	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
 604	struct lpfc_name fabric_portname;
 605	struct lpfc_name fabric_nodename;
 606
 607	int32_t stopped;   /* HBA has not been restarted since last ERATT */
 608	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
 609
 610	uint32_t num_disc_nodes;	/* in addition to hba_state */
 611	uint32_t gidft_inp;		/* cnt of outstanding GID_FTs */
 612
 613	uint32_t fc_nlp_cnt;	/* outstanding NODELIST requests */
 614	uint32_t fc_rscn_id_cnt;	/* count of RSCNs payloads in list */
 615	uint32_t fc_rscn_flush;		/* flag use of fc_rscn_id_list */
 616	struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
 617	struct lpfc_name fc_nodename;	/* fc nodename */
 618	struct lpfc_name fc_portname;	/* fc portname */
 619
 620	struct lpfc_work_evt disc_timeout_evt;
 621
 622	struct timer_list fc_disctmo;	/* Discovery rescue timer */
 623	uint8_t fc_ns_retry;	/* retries for fabric nameserver */
 624	uint32_t fc_prli_sent;	/* cntr for outstanding PRLIs */
 625
 626	spinlock_t work_port_lock;
 627	uint32_t work_port_events; /* Timeout to be handled  */
 628#define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
 629#define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
 630#define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
 631
 632#define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
 633#define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
 634#define WORKER_FABRIC_BLOCK_TMO        0x400	/* hba: fabric block timeout */
 635#define WORKER_RAMP_DOWN_QUEUE         0x800	/* hba: Decrease Q depth */
 636#define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
 637#define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
 638#define WORKER_CHECK_INACTIVE_VMID     0x4000	/* hba: check inactive vmids */
 639#define WORKER_CHECK_VMID_ISSUE_QFPA   0x8000	/* vport: Check if qfpa needs
 640						 * to be issued */
 641
 642	struct timer_list els_tmofunc;
 643	struct timer_list delayed_disc_tmo;
 644
 645	uint8_t load_flag;
 646#define FC_LOADING		0x1	/* HBA in process of loading drvr */
 647#define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
 648#define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
 649#define FC_ALLOW_VMID		0x8	/* Allow VMID I/Os */
 650#define FC_DEREGISTER_ALL_APP_ID	0x10	/* Deregister all VMIDs */
 651	/* Vport Config Parameters */
 652	uint32_t cfg_scan_down;
 653	uint32_t cfg_lun_queue_depth;
 654	uint32_t cfg_nodev_tmo;
 655	uint32_t cfg_devloss_tmo;
 656	uint32_t cfg_restrict_login;
 657	uint32_t cfg_peer_port_login;
 658	uint32_t cfg_fcp_class;
 659	uint32_t cfg_use_adisc;
 660	uint32_t cfg_discovery_threads;
 661	uint32_t cfg_log_verbose;
 662	uint32_t cfg_enable_fc4_type;
 663	uint32_t cfg_max_luns;
 664	uint32_t cfg_enable_da_id;
 665	uint32_t cfg_max_scsicmpl_time;
 666	uint32_t cfg_tgt_queue_depth;
 667	uint32_t cfg_first_burst_size;
 668	uint32_t dev_loss_tmo_changed;
 669	/* VMID parameters */
 670	u8 lpfc_vmid_host_uuid[16];
 671	u32 max_vmid;	/* maximum VMIDs allowed per port */
 672	u32 cur_vmid_cnt;	/* Current VMID count */
 673#define LPFC_MIN_VMID	4
 674#define LPFC_MAX_VMID	255
 675	u32 vmid_inactivity_timeout;	/* Time after which the VMID */
 676						/* deregisters from switch */
 677	u32 vmid_priority_tagging;
 678#define LPFC_VMID_PRIO_TAG_DISABLE	0 /* Disable */
 679#define LPFC_VMID_PRIO_TAG_SUP_TARGETS	1 /* Allow supported targets only */
 680#define LPFC_VMID_PRIO_TAG_ALL_TARGETS	2 /* Allow all targets */
 681	unsigned long *vmid_priority_range;
 682#define LPFC_VMID_MAX_PRIORITY_RANGE    256
 683#define LPFC_VMID_PRIORITY_BITMAP_SIZE  32
 684	u8 vmid_flag;
 685#define LPFC_VMID_IN_USE		0x1
 686#define LPFC_VMID_ISSUE_QFPA		0x2
 687#define LPFC_VMID_QFPA_CMPL		0x4
 688#define LPFC_VMID_QOS_ENABLED		0x8
 689#define LPFC_VMID_TIMER_ENBLD		0x10
 690#define LPFC_VMID_TYPE_PRIO		0x20
 691	struct fc_qfpa_res *qfpa_res;
 692
 693	struct fc_vport *fc_vport;
 694
 695	struct lpfc_vmid *vmid;
 696	DECLARE_HASHTABLE(hash_table, 8);
 697	rwlock_t vmid_lock;
 698	struct lpfc_vmid_priority_info vmid_priority;
 699
 700#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 701	struct dentry *debug_disc_trc;
 702	struct dentry *debug_nodelist;
 703	struct dentry *debug_nvmestat;
 704	struct dentry *debug_scsistat;
 705	struct dentry *debug_ioktime;
 706	struct dentry *debug_hdwqstat;
 707	struct dentry *vport_debugfs_root;
 708	struct lpfc_debugfs_trc *disc_trc;
 709	atomic_t disc_trc_cnt;
 710#endif
 711	struct list_head rcv_buffer_list;
 712	unsigned long rcv_buffer_time_stamp;
 713	uint32_t vport_flag;
 714#define STATIC_VPORT		0x1
 715#define FAWWPN_PARAM_CHG	0x2
 716
 717	uint16_t fdmi_num_disc;
 718	uint32_t fdmi_hba_mask;
 719	uint32_t fdmi_port_mask;
 720
 721	/* There is a single nvme instance per vport. */
 722	struct nvme_fc_local_port *localport;
 723	uint8_t  nvmei_support; /* driver supports NVME Initiator */
 724	uint32_t last_fcp_wqidx;
 725	uint32_t rcv_flogi_cnt; /* How many unsol FLOGIs ACK'd. */
 726};
 727
 728struct hbq_s {
 729	uint16_t entry_count;	  /* Current number of HBQ slots */
 730	uint16_t buffer_count;	  /* Current number of buffers posted */
 731	uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
 732	uint32_t hbqPutIdx;	  /* HBQ slot to use */
 733	uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
 734	void    *hbq_virt;	  /* Virtual ptr to this hbq */
 735	struct list_head hbq_buffer_list;  /* buffers assigned to this HBQ */
 736				  /* Callback for HBQ buffer allocation */
 737	struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
 738				  /* Callback for HBQ buffer free */
 739	void               (*hbq_free_buffer) (struct lpfc_hba *,
 740					       struct hbq_dmabuf *);
 741};
 742
 743/* this matches the position in the lpfc_hbq_defs array */
 744#define LPFC_ELS_HBQ	0
 745#define LPFC_MAX_HBQS	1
 746
 747enum hba_temp_state {
 748	HBA_NORMAL_TEMP,
 749	HBA_OVER_TEMP
 750};
 751
 752enum intr_type_t {
 753	NONE = 0,
 754	INTx,
 755	MSI,
 756	MSIX,
 757};
 758
 759#define LPFC_CT_CTX_MAX		64
 760struct unsol_rcv_ct_ctx {
 761	uint32_t ctxt_id;
 762	uint32_t SID;
 763	uint32_t valid;
 764#define UNSOL_INVALID		0
 765#define UNSOL_VALID		1
 766	uint16_t oxid;
 767	uint16_t rxid;
 768};
 769
 770#define LPFC_USER_LINK_SPEED_AUTO	0	/* auto select (default)*/
 771#define LPFC_USER_LINK_SPEED_1G		1	/* 1 Gigabaud */
 772#define LPFC_USER_LINK_SPEED_2G		2	/* 2 Gigabaud */
 773#define LPFC_USER_LINK_SPEED_4G		4	/* 4 Gigabaud */
 774#define LPFC_USER_LINK_SPEED_8G		8	/* 8 Gigabaud */
 775#define LPFC_USER_LINK_SPEED_10G	10	/* 10 Gigabaud */
 776#define LPFC_USER_LINK_SPEED_16G	16	/* 16 Gigabaud */
 777#define LPFC_USER_LINK_SPEED_32G	32	/* 32 Gigabaud */
 778#define LPFC_USER_LINK_SPEED_64G	64	/* 64 Gigabaud */
 779#define LPFC_USER_LINK_SPEED_MAX	LPFC_USER_LINK_SPEED_64G
 780
 781#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16, 32, 64"
 782
 783enum nemb_type {
 784	nemb_mse = 1,
 785	nemb_hbd
 786};
 787
 788enum mbox_type {
 789	mbox_rd = 1,
 790	mbox_wr
 791};
 792
 793enum dma_type {
 794	dma_mbox = 1,
 795	dma_ebuf
 796};
 797
 798enum sta_type {
 799	sta_pre_addr = 1,
 800	sta_pos_addr
 801};
 802
 803struct lpfc_mbox_ext_buf_ctx {
 804	uint32_t state;
 805#define LPFC_BSG_MBOX_IDLE		0
 806#define LPFC_BSG_MBOX_HOST              1
 807#define LPFC_BSG_MBOX_PORT		2
 808#define LPFC_BSG_MBOX_DONE		3
 809#define LPFC_BSG_MBOX_ABTS		4
 810	enum nemb_type nembType;
 811	enum mbox_type mboxType;
 812	uint32_t numBuf;
 813	uint32_t mbxTag;
 814	uint32_t seqNum;
 815	struct lpfc_dmabuf *mbx_dmabuf;
 816	struct list_head ext_dmabuf_list;
 817};
 818
 819struct lpfc_epd_pool {
 820	/* Expedite pool */
 821	struct list_head list;
 822	u32 count;
 823	spinlock_t lock;	/* lock for expedite pool */
 824};
 825
 826enum ras_state {
 827	INACTIVE,
 828	REG_INPROGRESS,
 829	ACTIVE
 830};
 831
 832struct lpfc_ras_fwlog {
 833	uint8_t *fwlog_buff;
 834	uint32_t fw_buffcount; /* Buffer size posted to FW */
 835#define LPFC_RAS_BUFF_ENTERIES  16      /* Each entry can hold max of 64k */
 836#define LPFC_RAS_MAX_ENTRY_SIZE (64 * 1024)
 837#define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
 838#define LPFC_RAS_MAX_BUFF_POST_SIZE (1024 * 1024)
 839	uint32_t fw_loglevel; /* Log level set */
 840	struct lpfc_dmabuf lwpd;
 841	struct list_head fwlog_buff_list;
 842
 843	/* RAS support status on adapter */
 844	bool ras_hwsupport; /* RAS Support available on HW or not */
 845	bool ras_enabled;   /* Ras Enabled for the function */
 846#define LPFC_RAS_DISABLE_LOGGING 0x00
 847#define LPFC_RAS_ENABLE_LOGGING 0x01
 848	enum ras_state state;    /* RAS logging running state */
 849};
 850
 851#define DBG_LOG_STR_SZ 256
 852#define DBG_LOG_SZ 256
 853
 854struct dbg_log_ent {
 855	char log[DBG_LOG_STR_SZ];
 856	u64     t_ns;
 857};
 858
 859enum lpfc_irq_chann_mode {
 860	/* Assign IRQs to all possible cpus that have hardware queues */
 861	NORMAL_MODE,
 862
 863	/* Assign IRQs only to cpus on the same numa node as HBA */
 864	NUMA_MODE,
 865
 866	/* Assign IRQs only on non-hyperthreaded CPUs. This is the
 867	 * same as normal_mode, but assign IRQS only on physical CPUs.
 868	 */
 869	NHT_MODE,
 870};
 871
 872enum lpfc_hba_bit_flags {
 873	FABRIC_COMANDS_BLOCKED,
 874	HBA_PCI_ERR,
 875	MBX_TMO_ERR,
 876};
 877
 878struct lpfc_hba {
 879	/* SCSI interface function jump table entries */
 880	struct lpfc_io_buf * (*lpfc_get_scsi_buf)
 881		(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 882		struct scsi_cmnd *cmnd);
 883	int (*lpfc_scsi_prep_dma_buf)
 884		(struct lpfc_hba *, struct lpfc_io_buf *);
 885	void (*lpfc_scsi_unprep_dma_buf)
 886		(struct lpfc_hba *, struct lpfc_io_buf *);
 887	void (*lpfc_release_scsi_buf)
 888		(struct lpfc_hba *, struct lpfc_io_buf *);
 889	void (*lpfc_rampdown_queue_depth)
 890		(struct lpfc_hba *);
 891	void (*lpfc_scsi_prep_cmnd)
 892		(struct lpfc_vport *, struct lpfc_io_buf *,
 893		 struct lpfc_nodelist *);
 894	int (*lpfc_scsi_prep_cmnd_buf)
 895		(struct lpfc_vport *vport,
 896		 struct lpfc_io_buf *lpfc_cmd,
 897		 uint8_t tmo);
 898	int (*lpfc_scsi_prep_task_mgmt_cmd)
 899		(struct lpfc_vport *vport,
 900		 struct lpfc_io_buf *lpfc_cmd,
 901		 u64 lun, u8 task_mgmt_cmd);
 902
 903	/* IOCB interface function jump table entries */
 904	int (*__lpfc_sli_issue_iocb)
 905		(struct lpfc_hba *, uint32_t,
 906		 struct lpfc_iocbq *, uint32_t);
 907	int (*__lpfc_sli_issue_fcp_io)
 908		(struct lpfc_hba *phba, uint32_t ring_number,
 909		 struct lpfc_iocbq *piocb, uint32_t flag);
 910	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 911			 struct lpfc_iocbq *);
 912	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
 
 
 913
 914	/* MBOX interface function jump table entries */
 915	int (*lpfc_sli_issue_mbox)
 916		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 917
 918	/* Slow-path IOCB process function jump table entries */
 919	void (*lpfc_sli_handle_slow_ring_event)
 920		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 921		 uint32_t mask);
 922
 923	/* INIT device interface function jump table entries */
 924	int (*lpfc_sli_hbq_to_firmware)
 925		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
 926	int (*lpfc_sli_brdrestart)
 927		(struct lpfc_hba *);
 928	int (*lpfc_sli_brdready)
 929		(struct lpfc_hba *, uint32_t);
 930	void (*lpfc_handle_eratt)
 931		(struct lpfc_hba *);
 932	void (*lpfc_stop_port)
 933		(struct lpfc_hba *);
 934	int (*lpfc_hba_init_link)
 935		(struct lpfc_hba *, uint32_t);
 936	int (*lpfc_hba_down_link)
 937		(struct lpfc_hba *, uint32_t);
 938	int (*lpfc_selective_reset)
 939		(struct lpfc_hba *);
 940
 941	int (*lpfc_bg_scsi_prep_dma_buf)
 942		(struct lpfc_hba *, struct lpfc_io_buf *);
 943
 944	/* Prep SLI WQE/IOCB jump table entries */
 945	void (*__lpfc_sli_prep_els_req_rsp)(struct lpfc_iocbq *cmdiocbq,
 946					    struct lpfc_vport *vport,
 947					    struct lpfc_dmabuf *bmp,
 948					    u16 cmd_size, u32 did, u32 elscmd,
 949					    u8 tmo, u8 expect_rsp);
 950	void (*__lpfc_sli_prep_gen_req)(struct lpfc_iocbq *cmdiocbq,
 951					struct lpfc_dmabuf *bmp, u16 rpi,
 952					u32 num_entry, u8 tmo);
 953	void (*__lpfc_sli_prep_xmit_seq64)(struct lpfc_iocbq *cmdiocbq,
 954					   struct lpfc_dmabuf *bmp, u16 rpi,
 955					   u16 ox_id, u32 num_entry, u8 rctl,
 956					   u8 last_seq, u8 cr_cx_cmd);
 957	void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
 958					  u16 ulp_context, u16 iotag,
 959					  u8 ulp_class, u16 cqid, bool ia,
 960					  bool wqec);
 961
 962	/* expedite pool */
 963	struct lpfc_epd_pool epd_pool;
 964
 965	/* SLI4 specific HBA data structure */
 966	struct lpfc_sli4_hba sli4_hba;
 967
 968	struct workqueue_struct *wq;
 969	struct delayed_work     eq_delay_work;
 970
 971#define LPFC_IDLE_STAT_DELAY 1000
 972	struct delayed_work	idle_stat_delay_work;
 973
 974	struct lpfc_sli sli;
 975	uint8_t pci_dev_grp;	/* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
 976	uint32_t sli_rev;		/* SLI2, SLI3, or SLI4 */
 977	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
 978#define LPFC_SLI3_HBQ_ENABLED		0x01
 979#define LPFC_SLI3_NPIV_ENABLED		0x02
 980#define LPFC_SLI3_VPORT_TEARDOWN	0x04
 981#define LPFC_SLI3_CRP_ENABLED		0x08
 982#define LPFC_SLI3_BG_ENABLED		0x20
 983#define LPFC_SLI3_DSS_ENABLED		0x40
 984#define LPFC_SLI4_PERFH_ENABLED		0x80
 985#define LPFC_SLI4_PHWQ_ENABLED		0x100
 986	uint32_t iocb_cmd_size;
 987	uint32_t iocb_rsp_size;
 988
 989	struct lpfc_trunk_link  trunk_link;
 990	enum hba_state link_state;
 991	uint32_t link_flag;	/* link state flags */
 992#define LS_LOOPBACK_MODE      0x1	/* NPort is in Loopback mode */
 993					/* This flag is set while issuing */
 994					/* INIT_LINK mailbox command */
 995#define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
 996#define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
 997#define LS_MDS_LINK_DOWN      0x8	/* MDS Diagnostics Link Down */
 998#define LS_MDS_LOOPBACK       0x10	/* MDS Diagnostics Link Up (Loopback) */
 999#define LS_CT_VEN_RPA         0x20	/* Vendor RPA sent to switch */
1000#define LS_EXTERNAL_LOOPBACK  0x40	/* External loopback plug inserted */
1001
1002	uint32_t hba_flag;	/* hba generic flags */
1003#define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
1004#define DEFER_ERATT		0x2 /* Deferred error attention in progress */
1005#define HBA_FCOE_MODE		0x4 /* HBA function in FCoE Mode */
1006#define HBA_SP_QUEUE_EVT	0x8 /* Slow-path qevt posted to worker thread*/
1007#define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
1008#define HBA_PERSISTENT_TOPO	0x20 /* Persistent topology support in hba */
1009#define ELS_XRI_ABORT_EVENT	0x40 /* ELS_XRI abort event was queued */
1010#define ASYNC_EVENT		0x80
1011#define LINK_DISABLED		0x100 /* Link disabled by user */
1012#define FCF_TS_INPROG           0x200 /* FCF table scan in progress */
1013#define FCF_RR_INPROG           0x400 /* FCF roundrobin flogi in progress */
1014#define HBA_FIP_SUPPORT		0x800 /* FIP support in HBA */
 
1015#define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
1016#define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
1017#define HBA_IOQ_FLUSH		0x8000 /* FCP/NVME I/O queues being flushed */
1018#define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
1019#define HBA_FORCED_LINK_SPEED	0x40000 /*
1020					 * Firmware supports Forced Link Speed
1021					 * capability
1022					 */
1023#define HBA_FLOGI_ISSUED	0x100000 /* FLOGI was issued */
 
 
1024#define HBA_DEFER_FLOGI		0x800000 /* Defer FLOGI till read_sparm cmpl */
1025#define HBA_SETUP		0x1000000 /* Signifies HBA setup is completed */
1026#define HBA_NEEDS_CFG_PORT	0x2000000 /* SLI3 - needs a CONFIG_PORT mbox */
1027#define HBA_HBEAT_INP		0x4000000 /* mbox HBEAT is in progress */
1028#define HBA_HBEAT_TMO		0x8000000 /* HBEAT initiated after timeout */
1029#define HBA_FLOGI_OUTSTANDING	0x10000000 /* FLOGI is outstanding */
1030#define HBA_RHBA_CMPL		0x20000000 /* RHBA FDMI command is successful */
1031
1032	struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
1033	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
1034	struct lpfc_dmabuf slim2p;
1035
1036	MAILBOX_t *mbox;
1037	uint32_t *mbox_ext;
1038	struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
1039	uint32_t ha_copy;
1040	struct _PCB *pcb;
1041	struct _IOCB *IOCBs;
1042
1043	struct lpfc_dmabuf hbqslimp;
1044
1045	uint16_t pci_cfg_value;
1046
1047	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
1048
1049	uint32_t fc_eventTag;	/* event tag for link attention */
1050	uint32_t link_events;
1051
1052	/* These fields used to be binfo */
1053	uint32_t fc_pref_DID;	/* preferred D_ID */
1054	uint8_t  fc_pref_ALPA;	/* preferred AL_PA */
1055	uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
1056	uint32_t fc_edtov;	/* E_D_TOV timer value */
1057	uint32_t fc_arbtov;	/* ARB_TOV timer value */
1058	uint32_t fc_ratov;	/* R_A_TOV timer value */
1059	uint32_t fc_rttov;	/* R_T_TOV timer value */
1060	uint32_t fc_altov;	/* AL_TOV timer value */
1061	uint32_t fc_crtov;	/* C_R_TOV timer value */
1062
1063	struct serv_parm fc_fabparam;	/* fabric service parameters buffer */
1064	uint8_t alpa_map[128];	/* AL_PA map from READ_LA */
1065
1066	uint32_t lmt;
1067
1068	uint32_t fc_topology;	/* link topology, from LINK INIT */
1069	uint32_t fc_topology_changed;	/* link topology, from LINK INIT */
1070
1071	struct lpfc_stats fc_stat;
1072
1073	struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
1074	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */
1075
1076	uint8_t  wwnn[8];
1077	uint8_t  wwpn[8];
1078	uint32_t RandomData[7];
1079	uint8_t  fcp_embed_io;
1080	uint8_t  nvmet_support;	/* driver supports NVMET */
1081#define LPFC_NVMET_MAX_PORTS	32
1082	uint8_t  mds_diags_support;
1083	uint8_t  bbcredit_support;
1084	uint8_t  enab_exp_wqcq_pages;
1085	u8	 nsler; /* Firmware supports FC-NVMe-2 SLER */
1086
1087	/* HBA Config Parameters */
1088	uint32_t cfg_ack0;
1089	uint32_t cfg_xri_rebalancing;
1090	uint32_t cfg_xpsgl;
1091	uint32_t cfg_enable_npiv;
1092	uint32_t cfg_enable_rrq;
1093	uint32_t cfg_topology;
1094	uint32_t cfg_link_speed;
1095#define LPFC_FCF_FOV 1		/* Fast fcf failover */
1096#define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
1097	uint32_t cfg_fcf_failover_policy;
1098	uint32_t cfg_fcp_io_sched;
1099	uint32_t cfg_ns_query;
1100	uint32_t cfg_fcp2_no_tgt_reset;
1101	uint32_t cfg_cr_delay;
1102	uint32_t cfg_cr_count;
1103	uint32_t cfg_multi_ring_support;
1104	uint32_t cfg_multi_ring_rctl;
1105	uint32_t cfg_multi_ring_type;
1106	uint32_t cfg_poll;
1107	uint32_t cfg_poll_tmo;
1108	uint32_t cfg_task_mgmt_tmo;
1109	uint32_t cfg_use_msi;
1110	uint32_t cfg_auto_imax;
1111	uint32_t cfg_fcp_imax;
1112	uint32_t cfg_force_rscn;
1113	uint32_t cfg_cq_poll_threshold;
1114	uint32_t cfg_cq_max_proc_limit;
1115	uint32_t cfg_fcp_cpu_map;
1116	uint32_t cfg_fcp_mq_threshold;
1117	uint32_t cfg_hdw_queue;
1118	uint32_t cfg_irq_chann;
1119	uint32_t cfg_suppress_rsp;
1120	uint32_t cfg_nvme_oas;
1121	uint32_t cfg_nvme_embed_cmd;
1122	uint32_t cfg_nvmet_mrq_post;
1123	uint32_t cfg_nvmet_mrq;
1124	uint32_t cfg_enable_nvmet;
1125	uint32_t cfg_nvme_enable_fb;
1126	uint32_t cfg_nvmet_fb_size;
1127	uint32_t cfg_total_seg_cnt;
1128	uint32_t cfg_sg_seg_cnt;
1129	uint32_t cfg_nvme_seg_cnt;
1130	uint32_t cfg_scsi_seg_cnt;
1131	uint32_t cfg_sg_dma_buf_size;
1132	uint32_t cfg_hba_queue_depth;
1133	uint32_t cfg_enable_hba_reset;
1134	uint32_t cfg_enable_hba_heartbeat;
1135	uint32_t cfg_fof;
1136	uint32_t cfg_EnableXLane;
1137	uint8_t cfg_oas_tgt_wwpn[8];
1138	uint8_t cfg_oas_vpt_wwpn[8];
1139	uint32_t cfg_oas_lun_state;
1140#define OAS_LUN_ENABLE	1
1141#define OAS_LUN_DISABLE	0
1142	uint32_t cfg_oas_lun_status;
1143#define OAS_LUN_STATUS_EXISTS	0x01
1144	uint32_t cfg_oas_flags;
1145#define OAS_FIND_ANY_VPORT	0x01
1146#define OAS_FIND_ANY_TARGET	0x02
1147#define OAS_LUN_VALID	0x04
1148	uint32_t cfg_oas_priority;
1149	uint32_t cfg_XLanePriority;
1150	uint32_t cfg_enable_bg;
1151	uint32_t cfg_prot_mask;
1152	uint32_t cfg_prot_guard;
1153	uint32_t cfg_hostmem_hgp;
1154	uint32_t cfg_log_verbose;
1155	uint32_t cfg_enable_fc4_type;
1156#define LPFC_ENABLE_FCP  1
1157#define LPFC_ENABLE_NVME 2
1158#define LPFC_ENABLE_BOTH 3
1159#if (IS_ENABLED(CONFIG_NVME_FC))
1160#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1161#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
1162#else
1163#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1164#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
1165#endif
 
1166	uint32_t cfg_sriov_nr_virtfn;
1167	uint32_t cfg_request_firmware_upgrade;
1168	uint32_t cfg_suppress_link_up;
1169	uint32_t cfg_rrq_xri_bitmap_sz;
1170	u32      cfg_fcp_wait_abts_rsp;
1171	uint32_t cfg_delay_discovery;
1172	uint32_t cfg_sli_mode;
1173#define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
1174#define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
1175#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
1176	uint32_t cfg_fdmi_on;
1177#define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
1178#define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
1179	uint32_t cfg_enable_SmartSAN;
1180	uint32_t cfg_enable_mds_diags;
1181	uint32_t cfg_ras_fwlog_level;
1182	uint32_t cfg_ras_fwlog_buffsize;
1183	uint32_t cfg_ras_fwlog_func;
1184	uint32_t cfg_enable_bbcr;	/* Enable BB Credit Recovery */
1185	uint32_t cfg_enable_dpp;	/* Enable Direct Packet Push */
1186	uint32_t cfg_enable_pbde;
1187	uint32_t cfg_enable_mi;
1188	struct nvmet_fc_target_port *targetport;
1189	lpfc_vpd_t vpd;		/* vital product data */
1190
1191	u32 cfg_max_vmid;	/* maximum VMIDs allowed per port */
1192	u32 cfg_vmid_app_header;
1193#define LPFC_VMID_APP_HEADER_DISABLE	0
1194#define LPFC_VMID_APP_HEADER_ENABLE	1
1195	u32 cfg_vmid_priority_tagging;
1196	u32 cfg_vmid_inactivity_timeout;	/* Time after which the VMID */
1197						/* deregisters from switch */
1198	struct pci_dev *pcidev;
1199	struct list_head      work_list;
1200	uint32_t              work_ha;      /* Host Attention Bits for WT */
1201	uint32_t              work_ha_mask; /* HA Bits owned by WT        */
1202	uint32_t              work_hs;      /* HS stored in case of ERRAT */
1203	uint32_t              work_status[2]; /* Extra status from SLIM */
1204
1205	wait_queue_head_t    work_waitq;
1206	struct task_struct   *worker_thread;
1207	unsigned long data_flags;
1208	uint32_t border_sge_num;
1209
1210	uint32_t hbq_in_use;		/* HBQs in use flag */
1211	uint32_t hbq_count;	        /* Count of configured HBQs */
1212	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
1213
1214	atomic_t fcp_qidx;         /* next FCP WQ (RR Policy) */
1215	atomic_t nvme_qidx;        /* next NVME WQ (RR Policy) */
1216
1217	phys_addr_t pci_bar0_map;     /* Physical address for PCI BAR0 */
1218	phys_addr_t pci_bar1_map;     /* Physical address for PCI BAR1 */
1219	phys_addr_t pci_bar2_map;     /* Physical address for PCI BAR2 */
1220	void __iomem *slim_memmap_p;	/* Kernel memory mapped address for
1221					   PCI BAR0 */
1222	void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
1223					    PCI BAR2 */
1224
1225	void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
1226					    PCI BAR0 with dual-ULP support */
1227	void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
1228					    PCI BAR2 with dual-ULP support */
1229	void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
1230					    PCI BAR4 with dual-ULP support */
1231#define PCI_64BIT_BAR0	0
1232#define PCI_64BIT_BAR2	2
1233#define PCI_64BIT_BAR4	4
1234	void __iomem *MBslimaddr;	/* virtual address for mbox cmds */
1235	void __iomem *HAregaddr;	/* virtual address for host attn reg */
1236	void __iomem *CAregaddr;	/* virtual address for chip attn reg */
1237	void __iomem *HSregaddr;	/* virtual address for host status
1238					   reg */
1239	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
1240
1241	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
1242	struct lpfc_pgp   *port_gp;
1243	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
1244	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
1245
1246	int brd_no;			/* FC board number */
1247	char SerialNumber[32];		/* adapter Serial Number */
1248	char OptionROMVersion[32];	/* adapter BIOS / Fcode version */
1249	char BIOSVersion[16];		/* Boot BIOS version */
1250	char ModelDesc[256];		/* Model Description */
1251	char ModelName[80];		/* Model Name */
1252	char ProgramType[256];		/* Program Type */
1253	char Port[20];			/* Port No */
1254	uint8_t vpd_flag;               /* VPD data flag */
1255
1256#define VPD_MODEL_DESC      0x1         /* valid vpd model description */
1257#define VPD_MODEL_NAME      0x2         /* valid vpd model name */
1258#define VPD_PROGRAM_TYPE    0x4         /* valid vpd program type */
1259#define VPD_PORT            0x8         /* valid vpd port data */
1260#define VPD_MASK            0xf         /* mask for any vpd data */
1261
1262
1263	struct timer_list fcp_poll_timer;
1264	struct timer_list eratt_poll;
1265	uint32_t eratt_poll_interval;
1266
1267	uint64_t bg_guard_err_cnt;
1268	uint64_t bg_apptag_err_cnt;
1269	uint64_t bg_reftag_err_cnt;
1270
1271	/* fastpath list. */
1272	spinlock_t scsi_buf_list_get_lock;  /* SCSI buf alloc list lock */
1273	spinlock_t scsi_buf_list_put_lock;  /* SCSI buf free list lock */
1274	struct list_head lpfc_scsi_buf_list_get;
1275	struct list_head lpfc_scsi_buf_list_put;
1276	uint32_t total_scsi_bufs;
1277	struct list_head lpfc_iocb_list;
1278	uint32_t total_iocbq_bufs;
1279	struct list_head active_rrq_list;
1280	spinlock_t hbalock;
1281	struct work_struct  unblock_request_work; /* SCSI layer unblock IOs */
1282
1283	/* dma_mem_pools */
1284	struct dma_pool *lpfc_sg_dma_buf_pool;
1285	struct dma_pool *lpfc_mbuf_pool;
1286	struct dma_pool *lpfc_hrb_pool;	/* header receive buffer pool */
1287	struct dma_pool *lpfc_drb_pool; /* data receive buffer pool */
1288	struct dma_pool *lpfc_nvmet_drb_pool; /* data receive buffer pool */
1289	struct dma_pool *lpfc_hbq_pool;	/* SLI3 hbq buffer pool */
1290	struct dma_pool *lpfc_cmd_rsp_buf_pool;
1291	struct lpfc_dma_pool lpfc_mbuf_safety_pool;
1292
1293	mempool_t *mbox_mem_pool;
1294	mempool_t *nlp_mem_pool;
1295	mempool_t *rrq_pool;
1296	mempool_t *active_rrq_pool;
1297
1298	struct fc_host_statistics link_stats;
1299	enum lpfc_irq_chann_mode irq_chann_mode;
1300	enum intr_type_t intr_type;
1301	uint32_t intr_mode;
1302#define LPFC_INTR_ERROR	0xFFFFFFFF
1303	struct list_head port_list;
1304	spinlock_t port_list_lock;	/* lock for port_list mutations */
1305	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
1306	uint16_t max_vpi;		/* Maximum virtual nports */
1307#define LPFC_MAX_VPI	0xFF		/* Max number VPI supported 0 - 0xff */
1308#define LPFC_MAX_VPORTS	0x100		/* Max vports per port, with pport */
1309	uint16_t max_vports;            /*
1310					 * For IOV HBAs max_vpi can change
1311					 * after a reset. max_vports is max
1312					 * number of vports present. This can
1313					 * be greater than max_vpi.
1314					 */
1315	uint16_t vpi_base;
1316	uint16_t vfi_base;
1317	unsigned long *vpi_bmask;	/* vpi allocation table */
1318	uint16_t *vpi_ids;
1319	uint16_t vpi_count;
1320	struct list_head lpfc_vpi_blk_list;
1321
1322	/* Data structure used by fabric iocb scheduler */
1323	struct list_head fabric_iocb_list;
1324	atomic_t fabric_iocb_count;
1325	struct timer_list fabric_block_timer;
1326	unsigned long bit_flags;
1327	atomic_t num_rsrc_err;
1328	atomic_t num_cmd_success;
1329	unsigned long last_rsrc_error_time;
1330	unsigned long last_ramp_down_time;
1331#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1332	struct dentry *hba_debugfs_root;
1333	atomic_t debugfs_vport_count;
1334	struct dentry *debug_multixri_pools;
1335	struct dentry *debug_hbqinfo;
1336	struct dentry *debug_dumpHostSlim;
1337	struct dentry *debug_dumpHBASlim;
1338	struct dentry *debug_InjErrLBA;  /* LBA to inject errors at */
1339	struct dentry *debug_InjErrNPortID;  /* NPortID to inject errors at */
1340	struct dentry *debug_InjErrWWPN;  /* WWPN to inject errors at */
1341	struct dentry *debug_writeGuard; /* inject write guard_tag errors */
1342	struct dentry *debug_writeApp;   /* inject write app_tag errors */
1343	struct dentry *debug_writeRef;   /* inject write ref_tag errors */
1344	struct dentry *debug_readGuard;  /* inject read guard_tag errors */
1345	struct dentry *debug_readApp;    /* inject read app_tag errors */
1346	struct dentry *debug_readRef;    /* inject read ref_tag errors */
1347
1348	struct dentry *debug_nvmeio_trc;
1349	struct lpfc_debugfs_nvmeio_trc *nvmeio_trc;
1350	struct dentry *debug_hdwqinfo;
1351#ifdef LPFC_HDWQ_LOCK_STAT
1352	struct dentry *debug_lockstat;
1353#endif
1354	struct dentry *debug_cgn_buffer;
1355	struct dentry *debug_rx_monitor;
1356	struct dentry *debug_ras_log;
1357	atomic_t nvmeio_trc_cnt;
1358	uint32_t nvmeio_trc_size;
1359	uint32_t nvmeio_trc_output_idx;
1360
1361	/* T10 DIF error injection */
1362	uint32_t lpfc_injerr_wgrd_cnt;
1363	uint32_t lpfc_injerr_wapp_cnt;
1364	uint32_t lpfc_injerr_wref_cnt;
1365	uint32_t lpfc_injerr_rgrd_cnt;
1366	uint32_t lpfc_injerr_rapp_cnt;
1367	uint32_t lpfc_injerr_rref_cnt;
1368	uint32_t lpfc_injerr_nportid;
1369	struct lpfc_name lpfc_injerr_wwpn;
1370	sector_t lpfc_injerr_lba;
1371#define LPFC_INJERR_LBA_OFF	(sector_t)(-1)
1372
1373	struct dentry *debug_slow_ring_trc;
1374	struct lpfc_debugfs_trc *slow_ring_trc;
1375	atomic_t slow_ring_trc_cnt;
1376	/* iDiag debugfs sub-directory */
1377	struct dentry *idiag_root;
1378	struct dentry *idiag_pci_cfg;
1379	struct dentry *idiag_bar_acc;
1380	struct dentry *idiag_que_info;
1381	struct dentry *idiag_que_acc;
1382	struct dentry *idiag_drb_acc;
1383	struct dentry *idiag_ctl_acc;
1384	struct dentry *idiag_mbx_acc;
1385	struct dentry *idiag_ext_acc;
1386	uint8_t lpfc_idiag_last_eq;
1387#endif
1388	uint16_t nvmeio_trc_on;
1389
1390	/* Used for deferred freeing of ELS data buffers */
1391	struct list_head elsbuf;
1392	int elsbuf_cnt;
1393	int elsbuf_prev_cnt;
1394
1395	uint8_t temp_sensor_support;
1396	/* Fields used for heart beat. */
1397	unsigned long last_completion_time;
1398	unsigned long skipped_hb;
1399	struct timer_list hb_tmofunc;
1400	struct timer_list rrq_tmr;
1401	enum hba_temp_state over_temp_state;
1402	/*
1403	 * Following bit will be set for all buffer tags which are not
1404	 * associated with any HBQ.
1405	 */
1406#define QUE_BUFTAG_BIT  (1<<31)
1407	uint32_t buffer_tag_count;
1408
1409/* Maximum number of events that can be outstanding at any time*/
1410#define LPFC_MAX_EVT_COUNT 512
1411	atomic_t fast_event_count;
1412	uint32_t fcoe_eventtag;
1413	uint32_t fcoe_eventtag_at_fcf_scan;
1414	uint32_t fcoe_cvl_eventtag;
1415	uint32_t fcoe_cvl_eventtag_attn;
1416	struct lpfc_fcf fcf;
1417	uint8_t fc_map[3];
1418	uint8_t valid_vlan;
1419	uint16_t vlan_id;
1420	struct list_head fcf_conn_rec_list;
1421
1422	bool defer_flogi_acc_flag;
1423	uint16_t defer_flogi_acc_rx_id;
1424	uint16_t defer_flogi_acc_ox_id;
1425
1426	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
1427	struct list_head ct_ev_waiters;
1428	struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
1429	uint32_t ctx_idx;
1430	struct timer_list inactive_vmid_poll;
1431
1432	/* RAS Support */
1433	struct lpfc_ras_fwlog ras_fwlog;
1434
1435	uint32_t iocb_cnt;
1436	uint32_t iocb_max;
1437	atomic_t sdev_cnt;
1438	spinlock_t devicelock;	/* lock for luns list */
1439	mempool_t *device_data_mem_pool;
1440	struct list_head luns;
1441#define LPFC_TRANSGRESSION_HIGH_TEMPERATURE	0x0080
1442#define LPFC_TRANSGRESSION_LOW_TEMPERATURE	0x0040
1443#define LPFC_TRANSGRESSION_HIGH_VOLTAGE		0x0020
1444#define LPFC_TRANSGRESSION_LOW_VOLTAGE		0x0010
1445#define LPFC_TRANSGRESSION_HIGH_TXBIAS		0x0008
1446#define LPFC_TRANSGRESSION_LOW_TXBIAS		0x0004
1447#define LPFC_TRANSGRESSION_HIGH_TXPOWER		0x0002
1448#define LPFC_TRANSGRESSION_LOW_TXPOWER		0x0001
1449#define LPFC_TRANSGRESSION_HIGH_RXPOWER		0x8000
1450#define LPFC_TRANSGRESSION_LOW_RXPOWER		0x4000
1451	uint16_t sfp_alarm;
1452	uint16_t sfp_warning;
1453
1454#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1455	uint16_t hdwqstat_on;
1456#define LPFC_CHECK_OFF		0
1457#define LPFC_CHECK_NVME_IO	1
1458#define LPFC_CHECK_NVMET_IO	2
1459#define LPFC_CHECK_SCSI_IO	4
1460	uint16_t ktime_on;
1461	uint64_t ktime_data_samples;
1462	uint64_t ktime_status_samples;
1463	uint64_t ktime_last_cmd;
1464	uint64_t ktime_seg1_total;
1465	uint64_t ktime_seg1_min;
1466	uint64_t ktime_seg1_max;
1467	uint64_t ktime_seg2_total;
1468	uint64_t ktime_seg2_min;
1469	uint64_t ktime_seg2_max;
1470	uint64_t ktime_seg3_total;
1471	uint64_t ktime_seg3_min;
1472	uint64_t ktime_seg3_max;
1473	uint64_t ktime_seg4_total;
1474	uint64_t ktime_seg4_min;
1475	uint64_t ktime_seg4_max;
1476	uint64_t ktime_seg5_total;
1477	uint64_t ktime_seg5_min;
1478	uint64_t ktime_seg5_max;
1479	uint64_t ktime_seg6_total;
1480	uint64_t ktime_seg6_min;
1481	uint64_t ktime_seg6_max;
1482	uint64_t ktime_seg7_total;
1483	uint64_t ktime_seg7_min;
1484	uint64_t ktime_seg7_max;
1485	uint64_t ktime_seg8_total;
1486	uint64_t ktime_seg8_min;
1487	uint64_t ktime_seg8_max;
1488	uint64_t ktime_seg9_total;
1489	uint64_t ktime_seg9_min;
1490	uint64_t ktime_seg9_max;
1491	uint64_t ktime_seg10_total;
1492	uint64_t ktime_seg10_min;
1493	uint64_t ktime_seg10_max;
1494#endif
1495	/* CMF objects */
1496	struct lpfc_cgn_stat __percpu *cmf_stat;
1497	uint32_t cmf_interval_rate;  /* timer interval limit in ms */
1498	uint32_t cmf_timer_cnt;
1499#define LPFC_CMF_INTERVAL 90
1500	uint64_t cmf_link_byte_count;
1501	uint64_t cmf_max_line_rate;
1502	uint64_t cmf_max_bytes_per_interval;
1503	uint64_t cmf_last_sync_bw;
1504#define  LPFC_CMF_BLK_SIZE 512
1505	struct hrtimer cmf_timer;
1506	struct hrtimer cmf_stats_timer;	/* 1 minute stats timer  */
1507	atomic_t cmf_bw_wait;
1508	atomic_t cmf_busy;
1509	atomic_t cmf_stop_io;      /* To block request and stop IO's */
1510	uint32_t cmf_active_mode;
1511	uint32_t cmf_info_per_interval;
1512#define LPFC_MAX_CMF_INFO 32
1513	struct timespec64 cmf_latency;  /* Interval congestion timestamp */
1514	uint32_t cmf_last_ts;   /* Interval congestion time (ms) */
1515	uint32_t cmf_active_info;
1516
1517	/* Signal / FPIN handling for Congestion Mgmt */
1518	u8 cgn_reg_fpin;           /* Negotiated value from RDF */
1519	u8 cgn_init_reg_fpin;      /* Initial value from READ_CONFIG */
1520#define LPFC_CGN_FPIN_NONE	0x0
1521#define LPFC_CGN_FPIN_WARN	0x1
1522#define LPFC_CGN_FPIN_ALARM	0x2
1523#define LPFC_CGN_FPIN_BOTH	(LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM)
1524
1525	u8 cgn_reg_signal;          /* Negotiated value from EDC */
1526	u8 cgn_init_reg_signal;     /* Initial value from READ_CONFIG */
1527		/* cgn_reg_signal and cgn_init_reg_signal use
1528		 * enum fc_edc_cg_signal_cap_types
1529		 */
1530	u16 cgn_fpin_frequency;		/* In units of msecs */
1531#define LPFC_FPIN_INIT_FREQ	0xffff
1532	u32 cgn_sig_freq;
1533	u32 cgn_acqe_cnt;
1534
1535	/* RX monitor handling for CMF */
1536	struct lpfc_rx_info_monitor *rx_monitor;
1537	atomic_t rx_max_read_cnt;       /* Maximum read bytes */
1538	uint64_t rx_block_cnt;
1539
1540	/* Congestion parameters from flash */
1541	struct lpfc_cgn_param cgn_p;
1542
1543	/* Statistics counter for ACQE cgn alarms and warnings */
1544	struct lpfc_cgn_acqe_stat cgn_acqe_stat;
1545
1546	/* Congestion buffer information */
1547	struct lpfc_dmabuf *cgn_i;      /* Congestion Info buffer */
1548	atomic_t cgn_fabric_warn_cnt;   /* Total warning cgn events for info */
1549	atomic_t cgn_fabric_alarm_cnt;  /* Total alarm cgn events for info */
1550	atomic_t cgn_sync_warn_cnt;     /* Total warning events for SYNC wqe */
1551	atomic_t cgn_sync_alarm_cnt;    /* Total alarm events for SYNC wqe */
1552	atomic_t cgn_driver_evt_cnt;    /* Total driver cgn events for fmw */
1553	atomic_t cgn_latency_evt_cnt;
 
1554	atomic64_t cgn_latency_evt;     /* Avg latency per minute */
1555	unsigned long cgn_evt_timestamp;
1556#define LPFC_CGN_TIMER_TO_MIN   60000 /* ms in a minute */
1557	uint32_t cgn_evt_minute;
1558#define LPFC_SEC_MIN		60UL
1559#define LPFC_MIN_HOUR		60
1560#define LPFC_HOUR_DAY		24
1561#define LPFC_MIN_DAY		(LPFC_MIN_HOUR * LPFC_HOUR_DAY)
1562
1563	struct hlist_node cpuhp;	/* used for cpuhp per hba callback */
1564	struct timer_list cpuhp_poll_timer;
1565	struct list_head poll_list;	/* slowpath eq polling list */
1566#define LPFC_POLL_HB	1		/* slowpath heartbeat */
 
 
1567
1568	char os_host_name[MAXHOSTNAMELEN];
1569
1570	/* LD Signaling */
1571	u32 degrade_activate_threshold;
1572	u32 degrade_deactivate_threshold;
1573	u32 fec_degrade_interval;
1574
1575	atomic_t dbg_log_idx;
1576	atomic_t dbg_log_cnt;
1577	atomic_t dbg_log_dmping;
1578	struct dbg_log_ent dbg_log[DBG_LOG_SZ];
1579};
1580
1581#define LPFC_MAX_RXMONITOR_ENTRY	800
1582#define LPFC_MAX_RXMONITOR_DUMP		32
1583struct rx_info_entry {
1584	uint64_t cmf_bytes;	/* Total no of read bytes for CMF_SYNC_WQE */
1585	uint64_t total_bytes;   /* Total no of read bytes requested */
1586	uint64_t rcv_bytes;     /* Total no of read bytes completed */
1587	uint64_t avg_io_size;
1588	uint64_t avg_io_latency;/* Average io latency in microseconds */
1589	uint64_t max_read_cnt;  /* Maximum read bytes */
1590	uint64_t max_bytes_per_interval;
1591	uint32_t cmf_busy;
1592	uint32_t cmf_info;      /* CMF_SYNC_WQE info */
1593	uint32_t io_cnt;
1594	uint32_t timer_utilization;
1595	uint32_t timer_interval;
1596};
1597
1598struct lpfc_rx_info_monitor {
1599	struct rx_info_entry *ring; /* info organized in a circular buffer */
1600	u32 head_idx, tail_idx; /* index to head/tail of ring */
1601	spinlock_t lock; /* spinlock for ring */
1602	u32 entries; /* storing number entries/size of ring */
1603};
1604
1605static inline struct Scsi_Host *
1606lpfc_shost_from_vport(struct lpfc_vport *vport)
1607{
1608	return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1609}
1610
1611static inline void
1612lpfc_set_loopback_flag(struct lpfc_hba *phba)
1613{
1614	if (phba->cfg_topology == FLAGS_LOCAL_LB)
1615		phba->link_flag |= LS_LOOPBACK_MODE;
1616	else
1617		phba->link_flag &= ~LS_LOOPBACK_MODE;
1618}
1619
1620static inline int
1621lpfc_is_link_up(struct lpfc_hba *phba)
1622{
1623	return  phba->link_state == LPFC_LINK_UP ||
1624		phba->link_state == LPFC_CLEAR_LA ||
1625		phba->link_state == LPFC_HBA_READY;
1626}
1627
1628static inline void
1629lpfc_worker_wake_up(struct lpfc_hba *phba)
1630{
1631	/* Set the lpfc data pending flag */
1632	set_bit(LPFC_DATA_READY, &phba->data_flags);
1633
1634	/* Wake up worker thread */
1635	wake_up(&phba->work_waitq);
1636	return;
1637}
1638
1639static inline int
1640lpfc_readl(void __iomem *addr, uint32_t *data)
1641{
1642	uint32_t temp;
1643	temp = readl(addr);
1644	if (temp == 0xffffffff)
1645		return -EIO;
1646	*data = temp;
1647	return 0;
1648}
1649
1650static inline int
1651lpfc_sli_read_hs(struct lpfc_hba *phba)
1652{
1653	/*
1654	 * There was a link/board error. Read the status register to retrieve
1655	 * the error event and process it.
1656	 */
1657	phba->sli.slistat.err_attn_event++;
1658
1659	/* Save status info and check for unplug error */
1660	if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1661		lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1662		lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1663		return -EIO;
1664	}
1665
1666	/* Clear chip Host Attention error bit */
1667	writel(HA_ERATT, phba->HAregaddr);
1668	readl(phba->HAregaddr); /* flush */
1669	phba->pport->stopped = 1;
1670
1671	return 0;
1672}
1673
1674static inline struct lpfc_sli_ring *
1675lpfc_phba_elsring(struct lpfc_hba *phba)
1676{
1677	/* Return NULL if sli_rev has become invalid due to bad fw */
1678	if (phba->sli_rev != LPFC_SLI_REV4  &&
1679	    phba->sli_rev != LPFC_SLI_REV3  &&
1680	    phba->sli_rev != LPFC_SLI_REV2)
1681		return NULL;
1682
1683	if (phba->sli_rev == LPFC_SLI_REV4) {
1684		if (phba->sli4_hba.els_wq)
1685			return phba->sli4_hba.els_wq->pring;
1686		else
1687			return NULL;
1688	}
1689	return &phba->sli.sli3_ring[LPFC_ELS_RING];
1690}
1691
1692/**
1693 * lpfc_next_online_cpu - Finds next online CPU on cpumask
1694 * @mask: Pointer to phba's cpumask member.
1695 * @start: starting cpu index
1696 *
1697 * Note: If no valid cpu found, then nr_cpu_ids is returned.
1698 *
1699 **/
1700static inline unsigned int
1701lpfc_next_online_cpu(const struct cpumask *mask, unsigned int start)
1702{
1703	unsigned int cpu_it;
1704
1705	for_each_cpu_wrap(cpu_it, mask, start) {
1706		if (cpu_online(cpu_it))
1707			break;
1708	}
1709
1710	return cpu_it;
1711}
1712/**
1713 * lpfc_next_present_cpu - Finds next present CPU after n
1714 * @n: the cpu prior to search
1715 *
1716 * Note: If no next present cpu, then fallback to first present cpu.
1717 *
1718 **/
1719static inline unsigned int lpfc_next_present_cpu(int n)
1720{
1721	unsigned int cpu;
1722
1723	cpu = cpumask_next(n, cpu_present_mask);
1724
1725	if (cpu >= nr_cpu_ids)
1726		cpu = cpumask_first(cpu_present_mask);
1727
1728	return cpu;
1729}
1730
1731/**
1732 * lpfc_sli4_mod_hba_eq_delay - update EQ delay
1733 * @phba: Pointer to HBA context object.
1734 * @q: The Event Queue to update.
1735 * @delay: The delay value (in us) to be written.
1736 *
1737 **/
1738static inline void
1739lpfc_sli4_mod_hba_eq_delay(struct lpfc_hba *phba, struct lpfc_queue *eq,
1740			   u32 delay)
1741{
1742	struct lpfc_register reg_data;
1743
1744	reg_data.word0 = 0;
1745	bf_set(lpfc_sliport_eqdelay_id, &reg_data, eq->queue_id);
1746	bf_set(lpfc_sliport_eqdelay_delay, &reg_data, delay);
1747	writel(reg_data.word0, phba->sli4_hba.u.if_type2.EQDregaddr);
1748	eq->q_mode = delay;
1749}
1750
1751
1752/*
1753 * Macro that declares tables and a routine to perform enum type to
1754 * ascii string lookup.
1755 *
1756 * Defines a <key,value> table for an enum. Uses xxx_INIT defines for
1757 * the enum to populate the table.  Macro defines a routine (named
1758 * by caller) that will search all elements of the table for the key
1759 * and return the name string if found or "Unrecognized" if not found.
1760 */
1761#define DECLARE_ENUM2STR_LOOKUP(routine, enum_name, enum_init)		\
1762static struct {								\
1763	enum enum_name		value;					\
1764	char			*name;					\
1765} fc_##enum_name##_e2str_names[] = enum_init;				\
1766static const char *routine(enum enum_name table_key)			\
1767{									\
1768	int i;								\
1769	char *name = "Unrecognized";					\
1770									\
1771	for (i = 0; i < ARRAY_SIZE(fc_##enum_name##_e2str_names); i++) {\
1772		if (fc_##enum_name##_e2str_names[i].value == table_key) {\
1773			name = fc_##enum_name##_e2str_names[i].name;	\
1774			break;						\
1775		}							\
1776	}								\
1777	return name;							\
1778}
1779
1780/**
1781 * lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
1782 * @phba: Pointer to HBA context object.
1783 *
1784 * Relationship between the enable, target support and if vmid tag is required
1785 * for the particular combination
1786 * ---------------------------------------------------
1787 * Switch    Enable Flag  Target Support  VMID Needed
1788 * ---------------------------------------------------
1789 * App Id     0              NA              N
1790 * App Id     1               0              N
1791 * App Id     1               1              Y
1792 * Pr Tag     0              NA              N
1793 * Pr Tag     1               0              N
1794 * Pr Tag     1               1              Y
1795 * Pr Tag     2               *              Y
1796 ---------------------------------------------------
1797 *
1798 **/
1799static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
1800{
1801	return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
1802}
1803
1804static inline
1805u8 get_job_ulpstatus(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1806{
1807	if (phba->sli_rev == LPFC_SLI_REV4)
1808		return bf_get(lpfc_wcqe_c_status, &iocbq->wcqe_cmpl);
1809	else
1810		return iocbq->iocb.ulpStatus;
1811}
1812
1813static inline
1814u32 get_job_word4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1815{
1816	if (phba->sli_rev == LPFC_SLI_REV4)
1817		return iocbq->wcqe_cmpl.parameter;
1818	else
1819		return iocbq->iocb.un.ulpWord[4];
1820}
1821
1822static inline
1823u8 get_job_cmnd(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1824{
1825	if (phba->sli_rev == LPFC_SLI_REV4)
1826		return bf_get(wqe_cmnd, &iocbq->wqe.generic.wqe_com);
1827	else
1828		return iocbq->iocb.ulpCommand;
1829}
1830
1831static inline
1832u16 get_job_ulpcontext(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1833{
1834	if (phba->sli_rev == LPFC_SLI_REV4)
1835		return bf_get(wqe_ctxt_tag, &iocbq->wqe.generic.wqe_com);
1836	else
1837		return iocbq->iocb.ulpContext;
1838}
1839
1840static inline
1841u16 get_job_rcvoxid(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1842{
1843	if (phba->sli_rev == LPFC_SLI_REV4)
1844		return bf_get(wqe_rcvoxid, &iocbq->wqe.generic.wqe_com);
1845	else
1846		return iocbq->iocb.unsli3.rcvsli3.ox_id;
1847}
1848
1849static inline
1850u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1851{
1852	if (phba->sli_rev == LPFC_SLI_REV4)
1853		return iocbq->wcqe_cmpl.total_data_placed;
1854	else
1855		return iocbq->iocb.un.genreq64.bdl.bdeSize;
1856}
1857
1858static inline
1859u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1860{
1861	if (phba->sli_rev == LPFC_SLI_REV4)
1862		return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
1863	else
1864		return iocbq->iocb.un.acxri.abortIoTag;
1865}
1866
1867static inline
1868u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1869{
1870	if (phba->sli_rev == LPFC_SLI_REV4)
1871		return bf_get(wqe_els_did, &iocbq->wqe.els_req.wqe_dest);
1872	else
1873		return iocbq->iocb.un.elsreq64.remoteID;
1874}