1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 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_PCI_DEV_LP 0x1 27 #define LPFC_PCI_DEV_OC 0x2 28 29 #define LPFC_SLI_REV2 2 30 #define LPFC_SLI_REV3 3 31 #define LPFC_SLI_REV4 4 32 33 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */ 34 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 35 requests */ 36 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 37 the NameServer before giving up. */ 38 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 39 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 40 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ 41 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ 42 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ 43 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 44 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 45 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 46 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt 47 queue depth change in millisecs */ 48 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ 49 #define LPFC_MIN_TGT_QDEPTH 100 50 #define LPFC_MAX_TGT_QDEPTH 0xFFFF 51 52 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data 53 collection. */ 54 /* 55 * Following time intervals are used of adjusting SCSI device 56 * queue depths when there are driver resource error or Firmware 57 * resource error. 58 */ 59 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 60 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 61 62 /* Number of exchanges reserved for discovery to complete */ 63 #define LPFC_DISC_IOCB_BUFF_COUNT 20 64 65 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 66 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 67 68 /* Error Attention event polling interval */ 69 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ 70 71 /* Define macros for 64 bit support */ 72 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 73 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 74 #define getPaddr(high, low) ((dma_addr_t)( \ 75 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 76 /* Provide maximum configuration definitions. */ 77 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 78 #define FC_MAX_ADPTMSG 64 79 80 #define MAX_HBAEVT 32 81 82 /* Number of MSI-X vectors the driver uses */ 83 #define LPFC_MSIX_VECTORS 2 84 85 /* lpfc wait event data ready flag */ 86 #define LPFC_DATA_READY (1<<0) 87 88 enum lpfc_polling_flags { 89 ENABLE_FCP_RING_POLLING = 0x1, 90 DISABLE_FCP_RING_INT = 0x2 91 }; 92 93 /* Provide DMA memory definitions the driver uses per port instance. */ 94 struct lpfc_dmabuf { 95 struct list_head list; 96 void *virt; /* virtual address ptr */ 97 dma_addr_t phys; /* mapped address */ 98 uint32_t buffer_tag; /* used for tagged queue ring */ 99 }; 100 101 struct lpfc_dma_pool { 102 struct lpfc_dmabuf *elements; 103 uint32_t max_count; 104 uint32_t current_count; 105 }; 106 107 struct hbq_dmabuf { 108 struct lpfc_dmabuf hbuf; 109 struct lpfc_dmabuf dbuf; 110 uint32_t size; 111 uint32_t tag; 112 struct lpfc_rcqe rcqe; 113 }; 114 115 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 116 #define MEM_PRI 0x100 117 118 119 /****************************************************************************/ 120 /* Device VPD save area */ 121 /****************************************************************************/ 122 typedef struct lpfc_vpd { 123 uint32_t status; /* vpd status value */ 124 uint32_t length; /* number of bytes actually returned */ 125 struct { 126 uint32_t rsvd1; /* Revision numbers */ 127 uint32_t biuRev; 128 uint32_t smRev; 129 uint32_t smFwRev; 130 uint32_t endecRev; 131 uint16_t rBit; 132 uint8_t fcphHigh; 133 uint8_t fcphLow; 134 uint8_t feaLevelHigh; 135 uint8_t feaLevelLow; 136 uint32_t postKernRev; 137 uint32_t opFwRev; 138 uint8_t opFwName[16]; 139 uint32_t sli1FwRev; 140 uint8_t sli1FwName[16]; 141 uint32_t sli2FwRev; 142 uint8_t sli2FwName[16]; 143 } rev; 144 struct { 145 #ifdef __BIG_ENDIAN_BITFIELD 146 uint32_t rsvd3 :19; /* Reserved */ 147 uint32_t cdss : 1; /* Configure Data Security SLI */ 148 uint32_t rsvd2 : 3; /* Reserved */ 149 uint32_t cbg : 1; /* Configure BlockGuard */ 150 uint32_t cmv : 1; /* Configure Max VPIs */ 151 uint32_t ccrp : 1; /* Config Command Ring Polling */ 152 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 153 uint32_t chbs : 1; /* Cofigure Host Backing store */ 154 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 155 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 156 uint32_t cmx : 1; /* Configure Max XRIs */ 157 uint32_t cmr : 1; /* Configure Max RPIs */ 158 #else /* __LITTLE_ENDIAN */ 159 uint32_t cmr : 1; /* Configure Max RPIs */ 160 uint32_t cmx : 1; /* Configure Max XRIs */ 161 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 162 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 163 uint32_t chbs : 1; /* Cofigure Host Backing store */ 164 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 165 uint32_t ccrp : 1; /* Config Command Ring Polling */ 166 uint32_t cmv : 1; /* Configure Max VPIs */ 167 uint32_t cbg : 1; /* Configure BlockGuard */ 168 uint32_t rsvd2 : 3; /* Reserved */ 169 uint32_t cdss : 1; /* Configure Data Security SLI */ 170 uint32_t rsvd3 :19; /* Reserved */ 171 #endif 172 } sli3Feat; 173 } lpfc_vpd_t; 174 175 struct lpfc_scsi_buf; 176 177 178 /* 179 * lpfc stat counters 180 */ 181 struct lpfc_stats { 182 /* Statistics for ELS commands */ 183 uint32_t elsLogiCol; 184 uint32_t elsRetryExceeded; 185 uint32_t elsXmitRetry; 186 uint32_t elsDelayRetry; 187 uint32_t elsRcvDrop; 188 uint32_t elsRcvFrame; 189 uint32_t elsRcvRSCN; 190 uint32_t elsRcvRNID; 191 uint32_t elsRcvFARP; 192 uint32_t elsRcvFARPR; 193 uint32_t elsRcvFLOGI; 194 uint32_t elsRcvPLOGI; 195 uint32_t elsRcvADISC; 196 uint32_t elsRcvPDISC; 197 uint32_t elsRcvFAN; 198 uint32_t elsRcvLOGO; 199 uint32_t elsRcvPRLO; 200 uint32_t elsRcvPRLI; 201 uint32_t elsRcvLIRR; 202 uint32_t elsRcvRPS; 203 uint32_t elsRcvRPL; 204 uint32_t elsXmitFLOGI; 205 uint32_t elsXmitFDISC; 206 uint32_t elsXmitPLOGI; 207 uint32_t elsXmitPRLI; 208 uint32_t elsXmitADISC; 209 uint32_t elsXmitLOGO; 210 uint32_t elsXmitSCR; 211 uint32_t elsXmitRNID; 212 uint32_t elsXmitFARP; 213 uint32_t elsXmitFARPR; 214 uint32_t elsXmitACC; 215 uint32_t elsXmitLSRJT; 216 217 uint32_t frameRcvBcast; 218 uint32_t frameRcvMulti; 219 uint32_t strayXmitCmpl; 220 uint32_t frameXmitDelay; 221 uint32_t xriCmdCmpl; 222 uint32_t xriStatErr; 223 uint32_t LinkUp; 224 uint32_t LinkDown; 225 uint32_t LinkMultiEvent; 226 uint32_t NoRcvBuf; 227 uint32_t fcpCmd; 228 uint32_t fcpCmpl; 229 uint32_t fcpRspErr; 230 uint32_t fcpRemoteStop; 231 uint32_t fcpPortRjt; 232 uint32_t fcpPortBusy; 233 uint32_t fcpError; 234 uint32_t fcpLocalErr; 235 }; 236 237 enum sysfs_mbox_state { 238 SMBOX_IDLE, 239 SMBOX_WRITING, 240 SMBOX_READING 241 }; 242 243 struct lpfc_sysfs_mbox { 244 enum sysfs_mbox_state state; 245 size_t offset; 246 struct lpfcMboxq * mbox; 247 }; 248 249 struct lpfc_hba; 250 251 252 enum discovery_state { 253 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 254 LPFC_VPORT_FAILED = 1, /* vport has failed */ 255 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 256 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 257 LPFC_FDISC = 8, /* FDISC sent for vport */ 258 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 259 * configured */ 260 LPFC_NS_REG = 10, /* Register with NameServer */ 261 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 262 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 263 * device authentication / discovery */ 264 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 265 LPFC_VPORT_READY = 32, 266 }; 267 268 enum hba_state { 269 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 270 LPFC_WARM_START = 1, /* HBA state after selective reset */ 271 LPFC_INIT_START = 2, /* Initial state after board reset */ 272 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 273 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 274 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 275 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 276 * CLEAR_LA */ 277 LPFC_HBA_READY = 32, 278 LPFC_HBA_ERROR = -1 279 }; 280 281 struct lpfc_vport { 282 struct lpfc_hba *phba; 283 struct list_head listentry; 284 uint8_t port_type; 285 #define LPFC_PHYSICAL_PORT 1 286 #define LPFC_NPIV_PORT 2 287 #define LPFC_FABRIC_PORT 3 288 enum discovery_state port_state; 289 290 uint16_t vpi; 291 uint16_t vfi; 292 uint8_t vfi_state; 293 #define LPFC_VFI_REGISTERED 0x1 294 295 uint32_t fc_flag; /* FC flags */ 296 /* Several of these flags are HBA centric and should be moved to 297 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 298 */ 299 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 300 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 301 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 302 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 303 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 304 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 305 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 306 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 307 #define FC_FABRIC 0x100 /* We are fabric attached */ 308 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 309 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 310 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 311 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 312 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 313 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 314 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 315 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 316 317 uint32_t ct_flags; 318 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 319 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 320 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 321 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 322 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 323 324 struct list_head fc_nodes; 325 326 /* Keep counters for the number of entries in each list. */ 327 uint16_t fc_plogi_cnt; 328 uint16_t fc_adisc_cnt; 329 uint16_t fc_reglogin_cnt; 330 uint16_t fc_prli_cnt; 331 uint16_t fc_unmap_cnt; 332 uint16_t fc_map_cnt; 333 uint16_t fc_npr_cnt; 334 uint16_t fc_unused_cnt; 335 struct serv_parm fc_sparam; /* buffer for our service parameters */ 336 337 uint32_t fc_myDID; /* fibre channel S_ID */ 338 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 339 340 int32_t stopped; /* HBA has not been restarted since last ERATT */ 341 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 342 343 uint32_t num_disc_nodes; /*in addition to hba_state */ 344 345 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 346 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 347 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 348 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 349 struct lpfc_name fc_nodename; /* fc nodename */ 350 struct lpfc_name fc_portname; /* fc portname */ 351 352 struct lpfc_work_evt disc_timeout_evt; 353 354 struct timer_list fc_disctmo; /* Discovery rescue timer */ 355 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 356 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 357 358 spinlock_t work_port_lock; 359 uint32_t work_port_events; /* Timeout to be handled */ 360 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 361 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 362 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 363 364 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 365 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 366 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 367 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 368 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 369 370 struct timer_list fc_fdmitmo; 371 struct timer_list els_tmofunc; 372 373 int unreg_vpi_cmpl; 374 375 uint8_t load_flag; 376 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 377 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 378 /* Vport Config Parameters */ 379 uint32_t cfg_scan_down; 380 uint32_t cfg_lun_queue_depth; 381 uint32_t cfg_nodev_tmo; 382 uint32_t cfg_devloss_tmo; 383 uint32_t cfg_restrict_login; 384 uint32_t cfg_peer_port_login; 385 uint32_t cfg_fcp_class; 386 uint32_t cfg_use_adisc; 387 uint32_t cfg_fdmi_on; 388 uint32_t cfg_discovery_threads; 389 uint32_t cfg_log_verbose; 390 uint32_t cfg_max_luns; 391 uint32_t cfg_enable_da_id; 392 uint32_t cfg_max_scsicmpl_time; 393 394 uint32_t dev_loss_tmo_changed; 395 396 struct fc_vport *fc_vport; 397 398 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 399 struct dentry *debug_disc_trc; 400 struct dentry *debug_nodelist; 401 struct dentry *vport_debugfs_root; 402 struct lpfc_debugfs_trc *disc_trc; 403 atomic_t disc_trc_cnt; 404 #endif 405 uint8_t stat_data_enabled; 406 uint8_t stat_data_blocked; 407 struct list_head rcv_buffer_list; 408 uint32_t vport_flag; 409 #define STATIC_VPORT 1 410 }; 411 412 struct hbq_s { 413 uint16_t entry_count; /* Current number of HBQ slots */ 414 uint16_t buffer_count; /* Current number of buffers posted */ 415 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 416 uint32_t hbqPutIdx; /* HBQ slot to use */ 417 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 418 void *hbq_virt; /* Virtual ptr to this hbq */ 419 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 420 /* Callback for HBQ buffer allocation */ 421 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 422 /* Callback for HBQ buffer free */ 423 void (*hbq_free_buffer) (struct lpfc_hba *, 424 struct hbq_dmabuf *); 425 }; 426 427 #define LPFC_MAX_HBQS 4 428 /* this matches the position in the lpfc_hbq_defs array */ 429 #define LPFC_ELS_HBQ 0 430 #define LPFC_EXTRA_HBQ 1 431 432 enum hba_temp_state { 433 HBA_NORMAL_TEMP, 434 HBA_OVER_TEMP 435 }; 436 437 enum intr_type_t { 438 NONE = 0, 439 INTx, 440 MSI, 441 MSIX, 442 }; 443 444 struct unsol_rcv_ct_ctx { 445 uint32_t ctxt_id; 446 uint32_t SID; 447 uint32_t oxid; 448 }; 449 450 struct lpfc_hba { 451 /* SCSI interface function jump table entries */ 452 int (*lpfc_new_scsi_buf) 453 (struct lpfc_vport *, int); 454 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 455 (struct lpfc_hba *); 456 int (*lpfc_scsi_prep_dma_buf) 457 (struct lpfc_hba *, struct lpfc_scsi_buf *); 458 void (*lpfc_scsi_unprep_dma_buf) 459 (struct lpfc_hba *, struct lpfc_scsi_buf *); 460 void (*lpfc_release_scsi_buf) 461 (struct lpfc_hba *, struct lpfc_scsi_buf *); 462 void (*lpfc_rampdown_queue_depth) 463 (struct lpfc_hba *); 464 void (*lpfc_scsi_prep_cmnd) 465 (struct lpfc_vport *, struct lpfc_scsi_buf *, 466 struct lpfc_nodelist *); 467 /* IOCB interface function jump table entries */ 468 int (*__lpfc_sli_issue_iocb) 469 (struct lpfc_hba *, uint32_t, 470 struct lpfc_iocbq *, uint32_t); 471 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 472 struct lpfc_iocbq *); 473 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 474 475 476 IOCB_t * (*lpfc_get_iocb_from_iocbq) 477 (struct lpfc_iocbq *); 478 void (*lpfc_scsi_cmd_iocb_cmpl) 479 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 480 481 /* MBOX interface function jump table entries */ 482 int (*lpfc_sli_issue_mbox) 483 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 484 /* Slow-path IOCB process function jump table entries */ 485 void (*lpfc_sli_handle_slow_ring_event) 486 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 487 uint32_t mask); 488 /* INIT device interface function jump table entries */ 489 int (*lpfc_sli_hbq_to_firmware) 490 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 491 int (*lpfc_sli_brdrestart) 492 (struct lpfc_hba *); 493 int (*lpfc_sli_brdready) 494 (struct lpfc_hba *, uint32_t); 495 void (*lpfc_handle_eratt) 496 (struct lpfc_hba *); 497 void (*lpfc_stop_port) 498 (struct lpfc_hba *); 499 500 501 /* SLI4 specific HBA data structure */ 502 struct lpfc_sli4_hba sli4_hba; 503 504 struct lpfc_sli sli; 505 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 506 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 507 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 508 #define LPFC_SLI3_HBQ_ENABLED 0x01 509 #define LPFC_SLI3_NPIV_ENABLED 0x02 510 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 511 #define LPFC_SLI3_CRP_ENABLED 0x08 512 #define LPFC_SLI3_INB_ENABLED 0x10 513 #define LPFC_SLI3_BG_ENABLED 0x20 514 #define LPFC_SLI3_DSS_ENABLED 0x40 515 uint32_t iocb_cmd_size; 516 uint32_t iocb_rsp_size; 517 518 enum hba_state link_state; 519 uint32_t link_flag; /* link state flags */ 520 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 521 /* This flag is set while issuing */ 522 /* INIT_LINK mailbox command */ 523 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 524 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 525 526 uint32_t hba_flag; /* hba generic flags */ 527 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 528 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 529 #define HBA_FCOE_SUPPORT 0x4 /* HBA function supports FCOE */ 530 #define HBA_RECEIVE_BUFFER 0x8 /* Rcv buffer posted to worker thread */ 531 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 532 #define FCP_XRI_ABORT_EVENT 0x20 533 #define ELS_XRI_ABORT_EVENT 0x40 534 #define ASYNC_EVENT 0x80 535 #define LINK_DISABLED 0x100 /* Link disabled by user */ 536 #define FCF_DISC_INPROGRESS 0x200 /* FCF discovery in progress */ 537 struct lpfc_dmabuf slim2p; 538 539 MAILBOX_t *mbox; 540 uint32_t *inb_ha_copy; 541 uint32_t *inb_counter; 542 uint32_t inb_last_counter; 543 uint32_t ha_copy; 544 struct _PCB *pcb; 545 struct _IOCB *IOCBs; 546 547 struct lpfc_dmabuf hbqslimp; 548 549 uint16_t pci_cfg_value; 550 551 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 552 553 uint32_t fc_eventTag; /* event tag for link attention */ 554 555 /* These fields used to be binfo */ 556 uint32_t fc_pref_DID; /* preferred D_ID */ 557 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 558 uint32_t fc_edtov; /* E_D_TOV timer value */ 559 uint32_t fc_arbtov; /* ARB_TOV timer value */ 560 uint32_t fc_ratov; /* R_A_TOV timer value */ 561 uint32_t fc_rttov; /* R_T_TOV timer value */ 562 uint32_t fc_altov; /* AL_TOV timer value */ 563 uint32_t fc_crtov; /* C_R_TOV timer value */ 564 uint32_t fc_citov; /* C_I_TOV timer value */ 565 566 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 567 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 568 569 uint32_t lmt; 570 571 uint32_t fc_topology; /* link topology, from LINK INIT */ 572 573 struct lpfc_stats fc_stat; 574 575 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 576 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 577 578 uint8_t wwnn[8]; 579 uint8_t wwpn[8]; 580 uint32_t RandomData[7]; 581 582 /* HBA Config Parameters */ 583 uint32_t cfg_ack0; 584 uint32_t cfg_enable_npiv; 585 uint32_t cfg_topology; 586 uint32_t cfg_link_speed; 587 uint32_t cfg_cr_delay; 588 uint32_t cfg_cr_count; 589 uint32_t cfg_multi_ring_support; 590 uint32_t cfg_multi_ring_rctl; 591 uint32_t cfg_multi_ring_type; 592 uint32_t cfg_poll; 593 uint32_t cfg_poll_tmo; 594 uint32_t cfg_use_msi; 595 uint32_t cfg_fcp_imax; 596 uint32_t cfg_fcp_wq_count; 597 uint32_t cfg_fcp_eq_count; 598 uint32_t cfg_sg_seg_cnt; 599 uint32_t cfg_prot_sg_seg_cnt; 600 uint32_t cfg_sg_dma_buf_size; 601 uint64_t cfg_soft_wwnn; 602 uint64_t cfg_soft_wwpn; 603 uint32_t cfg_hba_queue_depth; 604 uint32_t cfg_enable_hba_reset; 605 uint32_t cfg_enable_hba_heartbeat; 606 uint32_t cfg_enable_bg; 607 uint32_t cfg_enable_fip; 608 uint32_t cfg_log_verbose; 609 610 lpfc_vpd_t vpd; /* vital product data */ 611 612 struct pci_dev *pcidev; 613 struct list_head work_list; 614 uint32_t work_ha; /* Host Attention Bits for WT */ 615 uint32_t work_ha_mask; /* HA Bits owned by WT */ 616 uint32_t work_hs; /* HS stored in case of ERRAT */ 617 uint32_t work_status[2]; /* Extra status from SLIM */ 618 619 wait_queue_head_t work_waitq; 620 struct task_struct *worker_thread; 621 unsigned long data_flags; 622 623 uint32_t hbq_in_use; /* HBQs in use flag */ 624 struct list_head rb_pend_list; /* Received buffers to be processed */ 625 uint32_t hbq_count; /* Count of configured HBQs */ 626 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 627 628 uint32_t fcp_qidx; /* next work queue to post work to */ 629 630 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 631 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 632 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 633 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 634 PCI BAR0 */ 635 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 636 PCI BAR2 */ 637 638 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 639 void __iomem *HAregaddr; /* virtual address for host attn reg */ 640 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 641 void __iomem *HSregaddr; /* virtual address for host status 642 reg */ 643 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 644 645 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 646 struct lpfc_pgp *port_gp; 647 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 648 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 649 650 int brd_no; /* FC board number */ 651 652 char SerialNumber[32]; /* adapter Serial Number */ 653 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 654 char ModelDesc[256]; /* Model Description */ 655 char ModelName[80]; /* Model Name */ 656 char ProgramType[256]; /* Program Type */ 657 char Port[20]; /* Port No */ 658 uint8_t vpd_flag; /* VPD data flag */ 659 660 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 661 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 662 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 663 #define VPD_PORT 0x8 /* valid vpd port data */ 664 #define VPD_MASK 0xf /* mask for any vpd data */ 665 666 uint8_t soft_wwn_enable; 667 668 struct timer_list fcp_poll_timer; 669 struct timer_list eratt_poll; 670 671 /* 672 * stat counters 673 */ 674 uint64_t fc4InputRequests; 675 uint64_t fc4OutputRequests; 676 uint64_t fc4ControlRequests; 677 uint64_t bg_guard_err_cnt; 678 uint64_t bg_apptag_err_cnt; 679 uint64_t bg_reftag_err_cnt; 680 681 struct lpfc_sysfs_mbox sysfs_mbox; 682 683 /* fastpath list. */ 684 spinlock_t scsi_buf_list_lock; 685 struct list_head lpfc_scsi_buf_list; 686 uint32_t total_scsi_bufs; 687 struct list_head lpfc_iocb_list; 688 uint32_t total_iocbq_bufs; 689 spinlock_t hbalock; 690 691 /* pci_mem_pools */ 692 struct pci_pool *lpfc_scsi_dma_buf_pool; 693 struct pci_pool *lpfc_mbuf_pool; 694 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 695 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 696 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 697 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 698 699 mempool_t *mbox_mem_pool; 700 mempool_t *nlp_mem_pool; 701 702 struct fc_host_statistics link_stats; 703 enum intr_type_t intr_type; 704 uint32_t intr_mode; 705 #define LPFC_INTR_ERROR 0xFFFFFFFF 706 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 707 708 struct list_head port_list; 709 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 710 uint16_t max_vpi; /* Maximum virtual nports */ 711 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 712 uint16_t max_vports; /* 713 * For IOV HBAs max_vpi can change 714 * after a reset. max_vports is max 715 * number of vports present. This can 716 * be greater than max_vpi. 717 */ 718 uint16_t vpi_base; 719 uint16_t vfi_base; 720 unsigned long *vpi_bmask; /* vpi allocation table */ 721 722 /* Data structure used by fabric iocb scheduler */ 723 struct list_head fabric_iocb_list; 724 atomic_t fabric_iocb_count; 725 struct timer_list fabric_block_timer; 726 unsigned long bit_flags; 727 #define FABRIC_COMANDS_BLOCKED 0 728 atomic_t num_rsrc_err; 729 atomic_t num_cmd_success; 730 unsigned long last_rsrc_error_time; 731 unsigned long last_ramp_down_time; 732 unsigned long last_ramp_up_time; 733 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 734 struct dentry *hba_debugfs_root; 735 atomic_t debugfs_vport_count; 736 struct dentry *debug_hbqinfo; 737 struct dentry *debug_dumpHostSlim; 738 struct dentry *debug_dumpHBASlim; 739 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 740 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 741 struct dentry *debug_slow_ring_trc; 742 struct lpfc_debugfs_trc *slow_ring_trc; 743 atomic_t slow_ring_trc_cnt; 744 #endif 745 746 /* Used for deferred freeing of ELS data buffers */ 747 struct list_head elsbuf; 748 int elsbuf_cnt; 749 int elsbuf_prev_cnt; 750 751 uint8_t temp_sensor_support; 752 /* Fields used for heart beat. */ 753 unsigned long last_completion_time; 754 struct timer_list hb_tmofunc; 755 uint8_t hb_outstanding; 756 enum hba_temp_state over_temp_state; 757 /* ndlp reference management */ 758 spinlock_t ndlp_lock; 759 /* 760 * Following bit will be set for all buffer tags which are not 761 * associated with any HBQ. 762 */ 763 #define QUE_BUFTAG_BIT (1<<31) 764 uint32_t buffer_tag_count; 765 int wait_4_mlo_maint_flg; 766 wait_queue_head_t wait_4_mlo_m_q; 767 /* data structure used for latency data collection */ 768 #define LPFC_NO_BUCKET 0 769 #define LPFC_LINEAR_BUCKET 1 770 #define LPFC_POWER2_BUCKET 2 771 uint8_t bucket_type; 772 uint32_t bucket_base; 773 uint32_t bucket_step; 774 775 /* Maximum number of events that can be outstanding at any time*/ 776 #define LPFC_MAX_EVT_COUNT 512 777 atomic_t fast_event_count; 778 uint32_t fcoe_eventtag; 779 uint32_t fcoe_eventtag_at_fcf_scan; 780 struct lpfc_fcf fcf; 781 uint8_t fc_map[3]; 782 uint8_t valid_vlan; 783 uint16_t vlan_id; 784 struct list_head fcf_conn_rec_list; 785 786 struct mutex ct_event_mutex; /* synchronize access to ct_ev_waiters */ 787 struct list_head ct_ev_waiters; 788 struct unsol_rcv_ct_ctx ct_ctx[64]; 789 uint32_t ctx_idx; 790 }; 791 792 static inline struct Scsi_Host * 793 lpfc_shost_from_vport(struct lpfc_vport *vport) 794 { 795 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 796 } 797 798 static inline void 799 lpfc_set_loopback_flag(struct lpfc_hba *phba) 800 { 801 if (phba->cfg_topology == FLAGS_LOCAL_LB) 802 phba->link_flag |= LS_LOOPBACK_MODE; 803 else 804 phba->link_flag &= ~LS_LOOPBACK_MODE; 805 } 806 807 static inline int 808 lpfc_is_link_up(struct lpfc_hba *phba) 809 { 810 return phba->link_state == LPFC_LINK_UP || 811 phba->link_state == LPFC_CLEAR_LA || 812 phba->link_state == LPFC_HBA_READY; 813 } 814 815 static inline void 816 lpfc_worker_wake_up(struct lpfc_hba *phba) 817 { 818 /* Set the lpfc data pending flag */ 819 set_bit(LPFC_DATA_READY, &phba->data_flags); 820 821 /* Wake up worker thread */ 822 wake_up(&phba->work_waitq); 823 return; 824 } 825 826 static inline void 827 lpfc_sli_read_hs(struct lpfc_hba *phba) 828 { 829 /* 830 * There was a link/board error. Read the status register to retrieve 831 * the error event and process it. 832 */ 833 phba->sli.slistat.err_attn_event++; 834 835 /* Save status info */ 836 phba->work_hs = readl(phba->HSregaddr); 837 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 838 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 839 840 /* Clear chip Host Attention error bit */ 841 writel(HA_ERATT, phba->HAregaddr); 842 readl(phba->HAregaddr); /* flush */ 843 phba->pport->stopped = 1; 844 845 return; 846 } 847