1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2007 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <scsi/scsi_host.h> 23 24 struct lpfc_sli2_slim; 25 26 #define LPFC_MAX_TARGET 256 /* max number of targets supported */ 27 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 28 requests */ 29 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 30 the NameServer before giving up. */ 31 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 32 #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 33 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 34 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 35 36 /* 37 * Following time intervals are used of adjusting SCSI device 38 * queue depths when there are driver resource error or Firmware 39 * resource error. 40 */ 41 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 42 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 43 44 /* Number of exchanges reserved for discovery to complete */ 45 #define LPFC_DISC_IOCB_BUFF_COUNT 20 46 47 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 48 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 49 50 /* Define macros for 64 bit support */ 51 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 52 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 53 #define getPaddr(high, low) ((dma_addr_t)( \ 54 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 55 /* Provide maximum configuration definitions. */ 56 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 57 #define FC_MAX_ADPTMSG 64 58 59 #define MAX_HBAEVT 32 60 61 enum lpfc_polling_flags { 62 ENABLE_FCP_RING_POLLING = 0x1, 63 DISABLE_FCP_RING_INT = 0x2 64 }; 65 66 /* Provide DMA memory definitions the driver uses per port instance. */ 67 struct lpfc_dmabuf { 68 struct list_head list; 69 void *virt; /* virtual address ptr */ 70 dma_addr_t phys; /* mapped address */ 71 }; 72 73 struct lpfc_dma_pool { 74 struct lpfc_dmabuf *elements; 75 uint32_t max_count; 76 uint32_t current_count; 77 }; 78 79 struct hbq_dmabuf { 80 struct lpfc_dmabuf dbuf; 81 uint32_t size; 82 uint32_t tag; 83 }; 84 85 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 86 #define MEM_PRI 0x100 87 88 89 /****************************************************************************/ 90 /* Device VPD save area */ 91 /****************************************************************************/ 92 typedef struct lpfc_vpd { 93 uint32_t status; /* vpd status value */ 94 uint32_t length; /* number of bytes actually returned */ 95 struct { 96 uint32_t rsvd1; /* Revision numbers */ 97 uint32_t biuRev; 98 uint32_t smRev; 99 uint32_t smFwRev; 100 uint32_t endecRev; 101 uint16_t rBit; 102 uint8_t fcphHigh; 103 uint8_t fcphLow; 104 uint8_t feaLevelHigh; 105 uint8_t feaLevelLow; 106 uint32_t postKernRev; 107 uint32_t opFwRev; 108 uint8_t opFwName[16]; 109 uint32_t sli1FwRev; 110 uint8_t sli1FwName[16]; 111 uint32_t sli2FwRev; 112 uint8_t sli2FwName[16]; 113 } rev; 114 struct { 115 #ifdef __BIG_ENDIAN_BITFIELD 116 uint32_t rsvd2 :24; /* Reserved */ 117 uint32_t cmv : 1; /* Configure Max VPIs */ 118 uint32_t ccrp : 1; /* Config Command Ring Polling */ 119 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 120 uint32_t chbs : 1; /* Cofigure Host Backing store */ 121 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 122 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 123 uint32_t cmx : 1; /* Configure Max XRIs */ 124 uint32_t cmr : 1; /* Configure Max RPIs */ 125 #else /* __LITTLE_ENDIAN */ 126 uint32_t cmr : 1; /* Configure Max RPIs */ 127 uint32_t cmx : 1; /* Configure Max XRIs */ 128 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 129 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 130 uint32_t chbs : 1; /* Cofigure Host Backing store */ 131 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 132 uint32_t ccrp : 1; /* Config Command Ring Polling */ 133 uint32_t cmv : 1; /* Configure Max VPIs */ 134 uint32_t rsvd2 :24; /* Reserved */ 135 #endif 136 } sli3Feat; 137 } lpfc_vpd_t; 138 139 struct lpfc_scsi_buf; 140 141 142 /* 143 * lpfc stat counters 144 */ 145 struct lpfc_stats { 146 /* Statistics for ELS commands */ 147 uint32_t elsLogiCol; 148 uint32_t elsRetryExceeded; 149 uint32_t elsXmitRetry; 150 uint32_t elsDelayRetry; 151 uint32_t elsRcvDrop; 152 uint32_t elsRcvFrame; 153 uint32_t elsRcvRSCN; 154 uint32_t elsRcvRNID; 155 uint32_t elsRcvFARP; 156 uint32_t elsRcvFARPR; 157 uint32_t elsRcvFLOGI; 158 uint32_t elsRcvPLOGI; 159 uint32_t elsRcvADISC; 160 uint32_t elsRcvPDISC; 161 uint32_t elsRcvFAN; 162 uint32_t elsRcvLOGO; 163 uint32_t elsRcvPRLO; 164 uint32_t elsRcvPRLI; 165 uint32_t elsRcvLIRR; 166 uint32_t elsRcvRPS; 167 uint32_t elsRcvRPL; 168 uint32_t elsXmitFLOGI; 169 uint32_t elsXmitFDISC; 170 uint32_t elsXmitPLOGI; 171 uint32_t elsXmitPRLI; 172 uint32_t elsXmitADISC; 173 uint32_t elsXmitLOGO; 174 uint32_t elsXmitSCR; 175 uint32_t elsXmitRNID; 176 uint32_t elsXmitFARP; 177 uint32_t elsXmitFARPR; 178 uint32_t elsXmitACC; 179 uint32_t elsXmitLSRJT; 180 181 uint32_t frameRcvBcast; 182 uint32_t frameRcvMulti; 183 uint32_t strayXmitCmpl; 184 uint32_t frameXmitDelay; 185 uint32_t xriCmdCmpl; 186 uint32_t xriStatErr; 187 uint32_t LinkUp; 188 uint32_t LinkDown; 189 uint32_t LinkMultiEvent; 190 uint32_t NoRcvBuf; 191 uint32_t fcpCmd; 192 uint32_t fcpCmpl; 193 uint32_t fcpRspErr; 194 uint32_t fcpRemoteStop; 195 uint32_t fcpPortRjt; 196 uint32_t fcpPortBusy; 197 uint32_t fcpError; 198 uint32_t fcpLocalErr; 199 }; 200 201 enum sysfs_mbox_state { 202 SMBOX_IDLE, 203 SMBOX_WRITING, 204 SMBOX_READING 205 }; 206 207 struct lpfc_sysfs_mbox { 208 enum sysfs_mbox_state state; 209 size_t offset; 210 struct lpfcMboxq * mbox; 211 }; 212 213 struct lpfc_hba; 214 215 216 enum discovery_state { 217 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 218 LPFC_VPORT_FAILED = 1, /* vport has failed */ 219 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 220 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 221 LPFC_FDISC = 8, /* FDISC sent for vport */ 222 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 223 * configured */ 224 LPFC_NS_REG = 10, /* Register with NameServer */ 225 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 226 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 227 * device authentication / discovery */ 228 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 229 LPFC_VPORT_READY = 32, 230 }; 231 232 enum hba_state { 233 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 234 LPFC_WARM_START = 1, /* HBA state after selective reset */ 235 LPFC_INIT_START = 2, /* Initial state after board reset */ 236 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 237 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 238 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 239 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 240 * CLEAR_LA */ 241 LPFC_HBA_READY = 32, 242 LPFC_HBA_ERROR = -1 243 }; 244 245 struct lpfc_vport { 246 struct list_head listentry; 247 struct lpfc_hba *phba; 248 uint8_t port_type; 249 #define LPFC_PHYSICAL_PORT 1 250 #define LPFC_NPIV_PORT 2 251 #define LPFC_FABRIC_PORT 3 252 enum discovery_state port_state; 253 254 uint16_t vpi; 255 256 uint32_t fc_flag; /* FC flags */ 257 /* Several of these flags are HBA centric and should be moved to 258 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 259 */ 260 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 261 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 262 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 263 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 264 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 265 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 266 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 267 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 268 #define FC_FABRIC 0x100 /* We are fabric attached */ 269 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */ 270 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 271 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 272 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 273 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 274 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 275 #define FC_RFF_NOT_SUPPORTED 0x40000 /* RFF_ID was rejected by switch */ 276 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 277 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 278 279 struct list_head fc_nodes; 280 281 /* Keep counters for the number of entries in each list. */ 282 uint16_t fc_plogi_cnt; 283 uint16_t fc_adisc_cnt; 284 uint16_t fc_reglogin_cnt; 285 uint16_t fc_prli_cnt; 286 uint16_t fc_unmap_cnt; 287 uint16_t fc_map_cnt; 288 uint16_t fc_npr_cnt; 289 uint16_t fc_unused_cnt; 290 struct serv_parm fc_sparam; /* buffer for our service parameters */ 291 292 uint32_t fc_myDID; /* fibre channel S_ID */ 293 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 294 295 int32_t stopped; /* HBA has not been restarted since last ERATT */ 296 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 297 298 uint32_t num_disc_nodes; /*in addition to hba_state */ 299 300 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 301 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 302 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 303 struct lpfc_name fc_nodename; /* fc nodename */ 304 struct lpfc_name fc_portname; /* fc portname */ 305 306 struct lpfc_work_evt disc_timeout_evt; 307 308 struct timer_list fc_disctmo; /* Discovery rescue timer */ 309 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 310 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 311 312 spinlock_t work_port_lock; 313 uint32_t work_port_events; /* Timeout to be handled */ 314 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 315 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 316 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 317 318 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 319 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 320 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timout */ 321 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 322 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 323 324 struct timer_list fc_fdmitmo; 325 struct timer_list els_tmofunc; 326 327 int unreg_vpi_cmpl; 328 329 uint8_t load_flag; 330 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 331 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 332 char *vname; /* Application assigned name */ 333 334 /* Vport Config Parameters */ 335 uint32_t cfg_scan_down; 336 uint32_t cfg_lun_queue_depth; 337 uint32_t cfg_nodev_tmo; 338 uint32_t cfg_devloss_tmo; 339 uint32_t cfg_restrict_login; 340 uint32_t cfg_peer_port_login; 341 uint32_t cfg_fcp_class; 342 uint32_t cfg_use_adisc; 343 uint32_t cfg_fdmi_on; 344 uint32_t cfg_discovery_threads; 345 uint32_t cfg_log_verbose; 346 uint32_t cfg_max_luns; 347 348 uint32_t dev_loss_tmo_changed; 349 350 struct fc_vport *fc_vport; 351 352 #ifdef CONFIG_LPFC_DEBUG_FS 353 struct dentry *debug_disc_trc; 354 struct dentry *debug_nodelist; 355 struct dentry *vport_debugfs_root; 356 struct lpfc_debugfs_trc *disc_trc; 357 atomic_t disc_trc_cnt; 358 #endif 359 }; 360 361 struct hbq_s { 362 uint16_t entry_count; /* Current number of HBQ slots */ 363 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 364 uint32_t hbqPutIdx; /* HBQ slot to use */ 365 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 366 void *hbq_virt; /* Virtual ptr to this hbq */ 367 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 368 /* Callback for HBQ buffer allocation */ 369 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 370 /* Callback for HBQ buffer free */ 371 void (*hbq_free_buffer) (struct lpfc_hba *, 372 struct hbq_dmabuf *); 373 }; 374 375 #define LPFC_MAX_HBQS 4 376 /* this matches the position in the lpfc_hbq_defs array */ 377 #define LPFC_ELS_HBQ 0 378 #define LPFC_EXTRA_HBQ 1 379 380 struct lpfc_hba { 381 struct lpfc_sli sli; 382 uint32_t sli_rev; /* SLI2 or SLI3 */ 383 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 384 #define LPFC_SLI3_ENABLED 0x01 385 #define LPFC_SLI3_HBQ_ENABLED 0x02 386 #define LPFC_SLI3_NPIV_ENABLED 0x04 387 #define LPFC_SLI3_VPORT_TEARDOWN 0x08 388 uint32_t iocb_cmd_size; 389 uint32_t iocb_rsp_size; 390 391 enum hba_state link_state; 392 uint32_t link_flag; /* link state flags */ 393 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 394 /* This flag is set while issuing */ 395 /* INIT_LINK mailbox command */ 396 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 397 #define LS_IGNORE_ERATT 0x3 /* intr handler should ignore ERATT */ 398 399 struct lpfc_sli2_slim *slim2p; 400 struct lpfc_dmabuf hbqslimp; 401 402 dma_addr_t slim2p_mapping; 403 404 uint16_t pci_cfg_value; 405 406 uint8_t work_found; 407 #define LPFC_MAX_WORKER_ITERATION 4 408 409 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 410 411 uint32_t fc_eventTag; /* event tag for link attention */ 412 413 414 struct timer_list fc_estabtmo; /* link establishment timer */ 415 /* These fields used to be binfo */ 416 uint32_t fc_pref_DID; /* preferred D_ID */ 417 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 418 uint32_t fc_edtov; /* E_D_TOV timer value */ 419 uint32_t fc_arbtov; /* ARB_TOV timer value */ 420 uint32_t fc_ratov; /* R_A_TOV timer value */ 421 uint32_t fc_rttov; /* R_T_TOV timer value */ 422 uint32_t fc_altov; /* AL_TOV timer value */ 423 uint32_t fc_crtov; /* C_R_TOV timer value */ 424 uint32_t fc_citov; /* C_I_TOV timer value */ 425 426 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 427 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 428 429 uint32_t lmt; 430 431 uint32_t fc_topology; /* link topology, from LINK INIT */ 432 433 struct lpfc_stats fc_stat; 434 435 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 436 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 437 438 uint8_t wwnn[8]; 439 uint8_t wwpn[8]; 440 uint32_t RandomData[7]; 441 442 /* HBA Config Parameters */ 443 uint32_t cfg_ack0; 444 uint32_t cfg_enable_npiv; 445 uint32_t cfg_topology; 446 uint32_t cfg_link_speed; 447 uint32_t cfg_cr_delay; 448 uint32_t cfg_cr_count; 449 uint32_t cfg_multi_ring_support; 450 uint32_t cfg_multi_ring_rctl; 451 uint32_t cfg_multi_ring_type; 452 uint32_t cfg_poll; 453 uint32_t cfg_poll_tmo; 454 uint32_t cfg_use_msi; 455 uint32_t cfg_sg_seg_cnt; 456 uint32_t cfg_sg_dma_buf_size; 457 uint64_t cfg_soft_wwnn; 458 uint64_t cfg_soft_wwpn; 459 uint32_t cfg_hba_queue_depth; 460 461 462 lpfc_vpd_t vpd; /* vital product data */ 463 464 struct pci_dev *pcidev; 465 struct list_head work_list; 466 uint32_t work_ha; /* Host Attention Bits for WT */ 467 uint32_t work_ha_mask; /* HA Bits owned by WT */ 468 uint32_t work_hs; /* HS stored in case of ERRAT */ 469 uint32_t work_status[2]; /* Extra status from SLIM */ 470 471 wait_queue_head_t *work_wait; 472 struct task_struct *worker_thread; 473 474 uint32_t hbq_count; /* Count of configured HBQs */ 475 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 476 477 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 478 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 479 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 480 PCI BAR0 */ 481 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 482 PCI BAR2 */ 483 484 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 485 void __iomem *HAregaddr; /* virtual address for host attn reg */ 486 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 487 void __iomem *HSregaddr; /* virtual address for host status 488 reg */ 489 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 490 491 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 492 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 493 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 494 495 int brd_no; /* FC board number */ 496 497 char SerialNumber[32]; /* adapter Serial Number */ 498 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 499 char ModelDesc[256]; /* Model Description */ 500 char ModelName[80]; /* Model Name */ 501 char ProgramType[256]; /* Program Type */ 502 char Port[20]; /* Port No */ 503 uint8_t vpd_flag; /* VPD data flag */ 504 505 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 506 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 507 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 508 #define VPD_PORT 0x8 /* valid vpd port data */ 509 #define VPD_MASK 0xf /* mask for any vpd data */ 510 511 uint8_t soft_wwn_enable; 512 513 struct timer_list fcp_poll_timer; 514 515 /* 516 * stat counters 517 */ 518 uint64_t fc4InputRequests; 519 uint64_t fc4OutputRequests; 520 uint64_t fc4ControlRequests; 521 522 struct lpfc_sysfs_mbox sysfs_mbox; 523 524 /* fastpath list. */ 525 spinlock_t scsi_buf_list_lock; 526 struct list_head lpfc_scsi_buf_list; 527 uint32_t total_scsi_bufs; 528 struct list_head lpfc_iocb_list; 529 uint32_t total_iocbq_bufs; 530 spinlock_t hbalock; 531 532 /* pci_mem_pools */ 533 struct pci_pool *lpfc_scsi_dma_buf_pool; 534 struct pci_pool *lpfc_mbuf_pool; 535 struct pci_pool *lpfc_hbq_pool; 536 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 537 538 mempool_t *mbox_mem_pool; 539 mempool_t *nlp_mem_pool; 540 541 struct fc_host_statistics link_stats; 542 uint8_t using_msi; 543 544 struct list_head port_list; 545 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 546 uint16_t max_vpi; /* Maximum virtual nports */ 547 #define LPFC_MAX_VPI 100 /* Max number of VPI supported */ 548 #define LPFC_MAX_VPORTS (LPFC_MAX_VPI+1)/* Max number of VPorts supported */ 549 unsigned long *vpi_bmask; /* vpi allocation table */ 550 551 /* Data structure used by fabric iocb scheduler */ 552 struct list_head fabric_iocb_list; 553 atomic_t fabric_iocb_count; 554 struct timer_list fabric_block_timer; 555 unsigned long bit_flags; 556 #define FABRIC_COMANDS_BLOCKED 0 557 atomic_t num_rsrc_err; 558 atomic_t num_cmd_success; 559 unsigned long last_rsrc_error_time; 560 unsigned long last_ramp_down_time; 561 unsigned long last_ramp_up_time; 562 #ifdef CONFIG_LPFC_DEBUG_FS 563 struct dentry *hba_debugfs_root; 564 atomic_t debugfs_vport_count; 565 struct dentry *debug_hbqinfo; 566 struct dentry *debug_dumpslim; 567 struct dentry *debug_slow_ring_trc; 568 struct lpfc_debugfs_trc *slow_ring_trc; 569 atomic_t slow_ring_trc_cnt; 570 #endif 571 572 /* Fields used for heart beat. */ 573 unsigned long last_completion_time; 574 struct timer_list hb_tmofunc; 575 uint8_t hb_outstanding; 576 }; 577 578 static inline struct Scsi_Host * 579 lpfc_shost_from_vport(struct lpfc_vport *vport) 580 { 581 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 582 } 583 584 static inline void 585 lpfc_set_loopback_flag(struct lpfc_hba *phba) 586 { 587 if (phba->cfg_topology == FLAGS_LOCAL_LB) 588 phba->link_flag |= LS_LOOPBACK_MODE; 589 else 590 phba->link_flag &= ~LS_LOOPBACK_MODE; 591 } 592 593 static inline int 594 lpfc_is_link_up(struct lpfc_hba *phba) 595 { 596 return phba->link_state == LPFC_LINK_UP || 597 phba->link_state == LPFC_CLEAR_LA || 598 phba->link_state == LPFC_HBA_READY; 599 } 600 601 #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */ 602 603