1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 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 4096 /* 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_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 33 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ 34 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ 35 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ 36 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 37 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 38 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 39 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt 40 queue depth change in millisecs */ 41 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ 42 #define LPFC_MIN_TGT_QDEPTH 100 43 #define LPFC_MAX_TGT_QDEPTH 0xFFFF 44 45 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data 46 collection. */ 47 /* 48 * Following time intervals are used of adjusting SCSI device 49 * queue depths when there are driver resource error or Firmware 50 * resource error. 51 */ 52 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 53 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 54 55 /* Number of exchanges reserved for discovery to complete */ 56 #define LPFC_DISC_IOCB_BUFF_COUNT 20 57 58 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 59 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 60 61 /* Error Attention event polling interval */ 62 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ 63 64 /* Define macros for 64 bit support */ 65 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 66 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 67 #define getPaddr(high, low) ((dma_addr_t)( \ 68 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 69 /* Provide maximum configuration definitions. */ 70 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 71 #define FC_MAX_ADPTMSG 64 72 73 #define MAX_HBAEVT 32 74 75 /* Number of MSI-X vectors the driver uses */ 76 #define LPFC_MSIX_VECTORS 2 77 78 /* lpfc wait event data ready flag */ 79 #define LPFC_DATA_READY (1<<0) 80 81 enum lpfc_polling_flags { 82 ENABLE_FCP_RING_POLLING = 0x1, 83 DISABLE_FCP_RING_INT = 0x2 84 }; 85 86 /* Provide DMA memory definitions the driver uses per port instance. */ 87 struct lpfc_dmabuf { 88 struct list_head list; 89 void *virt; /* virtual address ptr */ 90 dma_addr_t phys; /* mapped address */ 91 uint32_t buffer_tag; /* used for tagged queue ring */ 92 }; 93 94 struct lpfc_dma_pool { 95 struct lpfc_dmabuf *elements; 96 uint32_t max_count; 97 uint32_t current_count; 98 }; 99 100 struct hbq_dmabuf { 101 struct lpfc_dmabuf dbuf; 102 uint32_t size; 103 uint32_t tag; 104 }; 105 106 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 107 #define MEM_PRI 0x100 108 109 110 /****************************************************************************/ 111 /* Device VPD save area */ 112 /****************************************************************************/ 113 typedef struct lpfc_vpd { 114 uint32_t status; /* vpd status value */ 115 uint32_t length; /* number of bytes actually returned */ 116 struct { 117 uint32_t rsvd1; /* Revision numbers */ 118 uint32_t biuRev; 119 uint32_t smRev; 120 uint32_t smFwRev; 121 uint32_t endecRev; 122 uint16_t rBit; 123 uint8_t fcphHigh; 124 uint8_t fcphLow; 125 uint8_t feaLevelHigh; 126 uint8_t feaLevelLow; 127 uint32_t postKernRev; 128 uint32_t opFwRev; 129 uint8_t opFwName[16]; 130 uint32_t sli1FwRev; 131 uint8_t sli1FwName[16]; 132 uint32_t sli2FwRev; 133 uint8_t sli2FwName[16]; 134 } rev; 135 struct { 136 #ifdef __BIG_ENDIAN_BITFIELD 137 uint32_t rsvd2 :24; /* Reserved */ 138 uint32_t cmv : 1; /* Configure Max VPIs */ 139 uint32_t ccrp : 1; /* Config Command Ring Polling */ 140 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 141 uint32_t chbs : 1; /* Cofigure Host Backing store */ 142 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 143 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 144 uint32_t cmx : 1; /* Configure Max XRIs */ 145 uint32_t cmr : 1; /* Configure Max RPIs */ 146 #else /* __LITTLE_ENDIAN */ 147 uint32_t cmr : 1; /* Configure Max RPIs */ 148 uint32_t cmx : 1; /* Configure Max XRIs */ 149 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 150 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 151 uint32_t chbs : 1; /* Cofigure Host Backing store */ 152 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 153 uint32_t ccrp : 1; /* Config Command Ring Polling */ 154 uint32_t cmv : 1; /* Configure Max VPIs */ 155 uint32_t rsvd2 :24; /* Reserved */ 156 #endif 157 } sli3Feat; 158 } lpfc_vpd_t; 159 160 struct lpfc_scsi_buf; 161 162 163 /* 164 * lpfc stat counters 165 */ 166 struct lpfc_stats { 167 /* Statistics for ELS commands */ 168 uint32_t elsLogiCol; 169 uint32_t elsRetryExceeded; 170 uint32_t elsXmitRetry; 171 uint32_t elsDelayRetry; 172 uint32_t elsRcvDrop; 173 uint32_t elsRcvFrame; 174 uint32_t elsRcvRSCN; 175 uint32_t elsRcvRNID; 176 uint32_t elsRcvFARP; 177 uint32_t elsRcvFARPR; 178 uint32_t elsRcvFLOGI; 179 uint32_t elsRcvPLOGI; 180 uint32_t elsRcvADISC; 181 uint32_t elsRcvPDISC; 182 uint32_t elsRcvFAN; 183 uint32_t elsRcvLOGO; 184 uint32_t elsRcvPRLO; 185 uint32_t elsRcvPRLI; 186 uint32_t elsRcvLIRR; 187 uint32_t elsRcvRPS; 188 uint32_t elsRcvRPL; 189 uint32_t elsXmitFLOGI; 190 uint32_t elsXmitFDISC; 191 uint32_t elsXmitPLOGI; 192 uint32_t elsXmitPRLI; 193 uint32_t elsXmitADISC; 194 uint32_t elsXmitLOGO; 195 uint32_t elsXmitSCR; 196 uint32_t elsXmitRNID; 197 uint32_t elsXmitFARP; 198 uint32_t elsXmitFARPR; 199 uint32_t elsXmitACC; 200 uint32_t elsXmitLSRJT; 201 202 uint32_t frameRcvBcast; 203 uint32_t frameRcvMulti; 204 uint32_t strayXmitCmpl; 205 uint32_t frameXmitDelay; 206 uint32_t xriCmdCmpl; 207 uint32_t xriStatErr; 208 uint32_t LinkUp; 209 uint32_t LinkDown; 210 uint32_t LinkMultiEvent; 211 uint32_t NoRcvBuf; 212 uint32_t fcpCmd; 213 uint32_t fcpCmpl; 214 uint32_t fcpRspErr; 215 uint32_t fcpRemoteStop; 216 uint32_t fcpPortRjt; 217 uint32_t fcpPortBusy; 218 uint32_t fcpError; 219 uint32_t fcpLocalErr; 220 }; 221 222 enum sysfs_mbox_state { 223 SMBOX_IDLE, 224 SMBOX_WRITING, 225 SMBOX_READING 226 }; 227 228 struct lpfc_sysfs_mbox { 229 enum sysfs_mbox_state state; 230 size_t offset; 231 struct lpfcMboxq * mbox; 232 }; 233 234 struct lpfc_hba; 235 236 237 enum discovery_state { 238 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 239 LPFC_VPORT_FAILED = 1, /* vport has failed */ 240 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 241 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 242 LPFC_FDISC = 8, /* FDISC sent for vport */ 243 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 244 * configured */ 245 LPFC_NS_REG = 10, /* Register with NameServer */ 246 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 247 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 248 * device authentication / discovery */ 249 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 250 LPFC_VPORT_READY = 32, 251 }; 252 253 enum hba_state { 254 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 255 LPFC_WARM_START = 1, /* HBA state after selective reset */ 256 LPFC_INIT_START = 2, /* Initial state after board reset */ 257 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 258 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 259 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 260 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 261 * CLEAR_LA */ 262 LPFC_HBA_READY = 32, 263 LPFC_HBA_ERROR = -1 264 }; 265 266 struct lpfc_vport { 267 struct list_head listentry; 268 struct lpfc_hba *phba; 269 uint8_t port_type; 270 #define LPFC_PHYSICAL_PORT 1 271 #define LPFC_NPIV_PORT 2 272 #define LPFC_FABRIC_PORT 3 273 enum discovery_state port_state; 274 275 uint16_t vpi; 276 277 uint32_t fc_flag; /* FC flags */ 278 /* Several of these flags are HBA centric and should be moved to 279 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 280 */ 281 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 282 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 283 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 284 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 285 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 286 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 287 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 288 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 289 #define FC_FABRIC 0x100 /* We are fabric attached */ 290 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 291 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 292 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 293 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 294 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 295 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 296 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 297 298 uint32_t ct_flags; 299 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 300 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 301 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 302 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 303 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 304 305 struct list_head fc_nodes; 306 307 /* Keep counters for the number of entries in each list. */ 308 uint16_t fc_plogi_cnt; 309 uint16_t fc_adisc_cnt; 310 uint16_t fc_reglogin_cnt; 311 uint16_t fc_prli_cnt; 312 uint16_t fc_unmap_cnt; 313 uint16_t fc_map_cnt; 314 uint16_t fc_npr_cnt; 315 uint16_t fc_unused_cnt; 316 struct serv_parm fc_sparam; /* buffer for our service parameters */ 317 318 uint32_t fc_myDID; /* fibre channel S_ID */ 319 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 320 321 int32_t stopped; /* HBA has not been restarted since last ERATT */ 322 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 323 324 uint32_t num_disc_nodes; /*in addition to hba_state */ 325 326 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 327 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 328 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 329 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 330 struct lpfc_name fc_nodename; /* fc nodename */ 331 struct lpfc_name fc_portname; /* fc portname */ 332 333 struct lpfc_work_evt disc_timeout_evt; 334 335 struct timer_list fc_disctmo; /* Discovery rescue timer */ 336 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 337 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 338 339 spinlock_t work_port_lock; 340 uint32_t work_port_events; /* Timeout to be handled */ 341 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 342 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 343 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 344 345 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 346 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 347 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 348 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 349 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 350 351 struct timer_list fc_fdmitmo; 352 struct timer_list els_tmofunc; 353 354 int unreg_vpi_cmpl; 355 356 uint8_t load_flag; 357 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 358 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 359 /* Vport Config Parameters */ 360 uint32_t cfg_scan_down; 361 uint32_t cfg_lun_queue_depth; 362 uint32_t cfg_nodev_tmo; 363 uint32_t cfg_devloss_tmo; 364 uint32_t cfg_restrict_login; 365 uint32_t cfg_peer_port_login; 366 uint32_t cfg_fcp_class; 367 uint32_t cfg_use_adisc; 368 uint32_t cfg_fdmi_on; 369 uint32_t cfg_discovery_threads; 370 uint32_t cfg_log_verbose; 371 uint32_t cfg_max_luns; 372 uint32_t cfg_enable_da_id; 373 uint32_t cfg_max_scsicmpl_time; 374 375 uint32_t dev_loss_tmo_changed; 376 377 struct fc_vport *fc_vport; 378 379 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 380 struct dentry *debug_disc_trc; 381 struct dentry *debug_nodelist; 382 struct dentry *vport_debugfs_root; 383 struct lpfc_debugfs_trc *disc_trc; 384 atomic_t disc_trc_cnt; 385 #endif 386 uint8_t stat_data_enabled; 387 uint8_t stat_data_blocked; 388 }; 389 390 struct hbq_s { 391 uint16_t entry_count; /* Current number of HBQ slots */ 392 uint16_t buffer_count; /* Current number of buffers posted */ 393 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 394 uint32_t hbqPutIdx; /* HBQ slot to use */ 395 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 396 void *hbq_virt; /* Virtual ptr to this hbq */ 397 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 398 /* Callback for HBQ buffer allocation */ 399 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 400 /* Callback for HBQ buffer free */ 401 void (*hbq_free_buffer) (struct lpfc_hba *, 402 struct hbq_dmabuf *); 403 }; 404 405 #define LPFC_MAX_HBQS 4 406 /* this matches the position in the lpfc_hbq_defs array */ 407 #define LPFC_ELS_HBQ 0 408 #define LPFC_EXTRA_HBQ 1 409 410 enum hba_temp_state { 411 HBA_NORMAL_TEMP, 412 HBA_OVER_TEMP 413 }; 414 415 enum intr_type_t { 416 NONE = 0, 417 INTx, 418 MSI, 419 MSIX, 420 }; 421 422 struct lpfc_hba { 423 struct lpfc_sli sli; 424 uint32_t sli_rev; /* SLI2 or SLI3 */ 425 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 426 #define LPFC_SLI3_HBQ_ENABLED 0x01 427 #define LPFC_SLI3_NPIV_ENABLED 0x02 428 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 429 #define LPFC_SLI3_CRP_ENABLED 0x08 430 #define LPFC_SLI3_INB_ENABLED 0x10 431 #define LPFC_SLI3_BG_ENABLED 0x20 432 uint32_t iocb_cmd_size; 433 uint32_t iocb_rsp_size; 434 435 enum hba_state link_state; 436 uint32_t link_flag; /* link state flags */ 437 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 438 /* This flag is set while issuing */ 439 /* INIT_LINK mailbox command */ 440 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 441 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 442 443 uint32_t hba_flag; /* hba generic flags */ 444 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 445 446 #define DEFER_ERATT 0x4 /* Deferred error attention in progress */ 447 struct lpfc_dmabuf slim2p; 448 449 MAILBOX_t *mbox; 450 uint32_t *inb_ha_copy; 451 uint32_t *inb_counter; 452 uint32_t inb_last_counter; 453 uint32_t ha_copy; 454 struct _PCB *pcb; 455 struct _IOCB *IOCBs; 456 457 struct lpfc_dmabuf hbqslimp; 458 459 uint16_t pci_cfg_value; 460 461 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 462 463 uint32_t fc_eventTag; /* event tag for link attention */ 464 465 /* These fields used to be binfo */ 466 uint32_t fc_pref_DID; /* preferred D_ID */ 467 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 468 uint32_t fc_edtov; /* E_D_TOV timer value */ 469 uint32_t fc_arbtov; /* ARB_TOV timer value */ 470 uint32_t fc_ratov; /* R_A_TOV timer value */ 471 uint32_t fc_rttov; /* R_T_TOV timer value */ 472 uint32_t fc_altov; /* AL_TOV timer value */ 473 uint32_t fc_crtov; /* C_R_TOV timer value */ 474 uint32_t fc_citov; /* C_I_TOV timer value */ 475 476 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 477 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 478 479 uint32_t lmt; 480 481 uint32_t fc_topology; /* link topology, from LINK INIT */ 482 483 struct lpfc_stats fc_stat; 484 485 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 486 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 487 488 uint8_t wwnn[8]; 489 uint8_t wwpn[8]; 490 uint32_t RandomData[7]; 491 492 /* HBA Config Parameters */ 493 uint32_t cfg_ack0; 494 uint32_t cfg_enable_npiv; 495 uint32_t cfg_topology; 496 uint32_t cfg_link_speed; 497 uint32_t cfg_cr_delay; 498 uint32_t cfg_cr_count; 499 uint32_t cfg_multi_ring_support; 500 uint32_t cfg_multi_ring_rctl; 501 uint32_t cfg_multi_ring_type; 502 uint32_t cfg_poll; 503 uint32_t cfg_poll_tmo; 504 uint32_t cfg_use_msi; 505 uint32_t cfg_sg_seg_cnt; 506 uint32_t cfg_prot_sg_seg_cnt; 507 uint32_t cfg_sg_dma_buf_size; 508 uint64_t cfg_soft_wwnn; 509 uint64_t cfg_soft_wwpn; 510 uint32_t cfg_hba_queue_depth; 511 uint32_t cfg_enable_hba_reset; 512 uint32_t cfg_enable_hba_heartbeat; 513 uint32_t cfg_enable_bg; 514 515 lpfc_vpd_t vpd; /* vital product data */ 516 517 struct pci_dev *pcidev; 518 struct list_head work_list; 519 uint32_t work_ha; /* Host Attention Bits for WT */ 520 uint32_t work_ha_mask; /* HA Bits owned by WT */ 521 uint32_t work_hs; /* HS stored in case of ERRAT */ 522 uint32_t work_status[2]; /* Extra status from SLIM */ 523 524 wait_queue_head_t work_waitq; 525 struct task_struct *worker_thread; 526 unsigned long data_flags; 527 528 uint32_t hbq_in_use; /* HBQs in use flag */ 529 struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */ 530 uint32_t hbq_count; /* Count of configured HBQs */ 531 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 532 533 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 534 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 535 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 536 PCI BAR0 */ 537 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 538 PCI BAR2 */ 539 540 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 541 void __iomem *HAregaddr; /* virtual address for host attn reg */ 542 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 543 void __iomem *HSregaddr; /* virtual address for host status 544 reg */ 545 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 546 547 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 548 struct lpfc_pgp *port_gp; 549 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 550 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 551 552 int brd_no; /* FC board number */ 553 554 char SerialNumber[32]; /* adapter Serial Number */ 555 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 556 char ModelDesc[256]; /* Model Description */ 557 char ModelName[80]; /* Model Name */ 558 char ProgramType[256]; /* Program Type */ 559 char Port[20]; /* Port No */ 560 uint8_t vpd_flag; /* VPD data flag */ 561 562 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 563 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 564 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 565 #define VPD_PORT 0x8 /* valid vpd port data */ 566 #define VPD_MASK 0xf /* mask for any vpd data */ 567 568 uint8_t soft_wwn_enable; 569 570 struct timer_list fcp_poll_timer; 571 struct timer_list eratt_poll; 572 573 /* 574 * stat counters 575 */ 576 uint64_t fc4InputRequests; 577 uint64_t fc4OutputRequests; 578 uint64_t fc4ControlRequests; 579 uint64_t bg_guard_err_cnt; 580 uint64_t bg_apptag_err_cnt; 581 uint64_t bg_reftag_err_cnt; 582 583 struct lpfc_sysfs_mbox sysfs_mbox; 584 585 /* fastpath list. */ 586 spinlock_t scsi_buf_list_lock; 587 struct list_head lpfc_scsi_buf_list; 588 uint32_t total_scsi_bufs; 589 struct list_head lpfc_iocb_list; 590 uint32_t total_iocbq_bufs; 591 spinlock_t hbalock; 592 593 /* pci_mem_pools */ 594 struct pci_pool *lpfc_scsi_dma_buf_pool; 595 struct pci_pool *lpfc_mbuf_pool; 596 struct pci_pool *lpfc_hbq_pool; 597 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 598 599 mempool_t *mbox_mem_pool; 600 mempool_t *nlp_mem_pool; 601 602 struct fc_host_statistics link_stats; 603 enum intr_type_t intr_type; 604 uint32_t intr_mode; 605 #define LPFC_INTR_ERROR 0xFFFFFFFF 606 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 607 608 struct list_head port_list; 609 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 610 uint16_t max_vpi; /* Maximum virtual nports */ 611 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 612 unsigned long *vpi_bmask; /* vpi allocation table */ 613 614 /* Data structure used by fabric iocb scheduler */ 615 struct list_head fabric_iocb_list; 616 atomic_t fabric_iocb_count; 617 struct timer_list fabric_block_timer; 618 unsigned long bit_flags; 619 #define FABRIC_COMANDS_BLOCKED 0 620 atomic_t num_rsrc_err; 621 atomic_t num_cmd_success; 622 unsigned long last_rsrc_error_time; 623 unsigned long last_ramp_down_time; 624 unsigned long last_ramp_up_time; 625 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 626 struct dentry *hba_debugfs_root; 627 atomic_t debugfs_vport_count; 628 struct dentry *debug_hbqinfo; 629 struct dentry *debug_dumpHostSlim; 630 struct dentry *debug_dumpHBASlim; 631 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 632 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 633 struct dentry *debug_slow_ring_trc; 634 struct lpfc_debugfs_trc *slow_ring_trc; 635 atomic_t slow_ring_trc_cnt; 636 #endif 637 638 /* Used for deferred freeing of ELS data buffers */ 639 struct list_head elsbuf; 640 int elsbuf_cnt; 641 int elsbuf_prev_cnt; 642 643 uint8_t temp_sensor_support; 644 /* Fields used for heart beat. */ 645 unsigned long last_completion_time; 646 struct timer_list hb_tmofunc; 647 uint8_t hb_outstanding; 648 enum hba_temp_state over_temp_state; 649 /* ndlp reference management */ 650 spinlock_t ndlp_lock; 651 /* 652 * Following bit will be set for all buffer tags which are not 653 * associated with any HBQ. 654 */ 655 #define QUE_BUFTAG_BIT (1<<31) 656 uint32_t buffer_tag_count; 657 int wait_4_mlo_maint_flg; 658 wait_queue_head_t wait_4_mlo_m_q; 659 /* data structure used for latency data collection */ 660 #define LPFC_NO_BUCKET 0 661 #define LPFC_LINEAR_BUCKET 1 662 #define LPFC_POWER2_BUCKET 2 663 uint8_t bucket_type; 664 uint32_t bucket_base; 665 uint32_t bucket_step; 666 667 /* Maximum number of events that can be outstanding at any time*/ 668 #define LPFC_MAX_EVT_COUNT 512 669 atomic_t fast_event_count; 670 }; 671 672 static inline struct Scsi_Host * 673 lpfc_shost_from_vport(struct lpfc_vport *vport) 674 { 675 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 676 } 677 678 static inline void 679 lpfc_set_loopback_flag(struct lpfc_hba *phba) 680 { 681 if (phba->cfg_topology == FLAGS_LOCAL_LB) 682 phba->link_flag |= LS_LOOPBACK_MODE; 683 else 684 phba->link_flag &= ~LS_LOOPBACK_MODE; 685 } 686 687 static inline int 688 lpfc_is_link_up(struct lpfc_hba *phba) 689 { 690 return phba->link_state == LPFC_LINK_UP || 691 phba->link_state == LPFC_CLEAR_LA || 692 phba->link_state == LPFC_HBA_READY; 693 } 694 695 static inline void 696 lpfc_worker_wake_up(struct lpfc_hba *phba) 697 { 698 /* Set the lpfc data pending flag */ 699 set_bit(LPFC_DATA_READY, &phba->data_flags); 700 701 /* Wake up worker thread */ 702 wake_up(&phba->work_waitq); 703 return; 704 } 705 706 static inline void 707 lpfc_sli_read_hs(struct lpfc_hba *phba) 708 { 709 /* 710 * There was a link/board error. Read the status register to retrieve 711 * the error event and process it. 712 */ 713 phba->sli.slistat.err_attn_event++; 714 715 /* Save status info */ 716 phba->work_hs = readl(phba->HSregaddr); 717 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 718 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 719 720 /* Clear chip Host Attention error bit */ 721 writel(HA_ERATT, phba->HAregaddr); 722 readl(phba->HAregaddr); /* flush */ 723 phba->pport->stopped = 1; 724 725 return; 726 } 727