1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 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_cq_event cq_event; 113 unsigned long time_stamp; 114 }; 115 116 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 117 #define MEM_PRI 0x100 118 119 120 /****************************************************************************/ 121 /* Device VPD save area */ 122 /****************************************************************************/ 123 typedef struct lpfc_vpd { 124 uint32_t status; /* vpd status value */ 125 uint32_t length; /* number of bytes actually returned */ 126 struct { 127 uint32_t rsvd1; /* Revision numbers */ 128 uint32_t biuRev; 129 uint32_t smRev; 130 uint32_t smFwRev; 131 uint32_t endecRev; 132 uint16_t rBit; 133 uint8_t fcphHigh; 134 uint8_t fcphLow; 135 uint8_t feaLevelHigh; 136 uint8_t feaLevelLow; 137 uint32_t postKernRev; 138 uint32_t opFwRev; 139 uint8_t opFwName[16]; 140 uint32_t sli1FwRev; 141 uint8_t sli1FwName[16]; 142 uint32_t sli2FwRev; 143 uint8_t sli2FwName[16]; 144 } rev; 145 struct { 146 #ifdef __BIG_ENDIAN_BITFIELD 147 uint32_t rsvd3 :19; /* Reserved */ 148 uint32_t cdss : 1; /* Configure Data Security SLI */ 149 uint32_t rsvd2 : 3; /* Reserved */ 150 uint32_t cbg : 1; /* Configure BlockGuard */ 151 uint32_t cmv : 1; /* Configure Max VPIs */ 152 uint32_t ccrp : 1; /* Config Command Ring Polling */ 153 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 154 uint32_t chbs : 1; /* Cofigure Host Backing store */ 155 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 156 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 157 uint32_t cmx : 1; /* Configure Max XRIs */ 158 uint32_t cmr : 1; /* Configure Max RPIs */ 159 #else /* __LITTLE_ENDIAN */ 160 uint32_t cmr : 1; /* Configure Max RPIs */ 161 uint32_t cmx : 1; /* Configure Max XRIs */ 162 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 163 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 164 uint32_t chbs : 1; /* Cofigure Host Backing store */ 165 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 166 uint32_t ccrp : 1; /* Config Command Ring Polling */ 167 uint32_t cmv : 1; /* Configure Max VPIs */ 168 uint32_t cbg : 1; /* Configure BlockGuard */ 169 uint32_t rsvd2 : 3; /* Reserved */ 170 uint32_t cdss : 1; /* Configure Data Security SLI */ 171 uint32_t rsvd3 :19; /* Reserved */ 172 #endif 173 } sli3Feat; 174 } lpfc_vpd_t; 175 176 struct lpfc_scsi_buf; 177 178 179 /* 180 * lpfc stat counters 181 */ 182 struct lpfc_stats { 183 /* Statistics for ELS commands */ 184 uint32_t elsLogiCol; 185 uint32_t elsRetryExceeded; 186 uint32_t elsXmitRetry; 187 uint32_t elsDelayRetry; 188 uint32_t elsRcvDrop; 189 uint32_t elsRcvFrame; 190 uint32_t elsRcvRSCN; 191 uint32_t elsRcvRNID; 192 uint32_t elsRcvFARP; 193 uint32_t elsRcvFARPR; 194 uint32_t elsRcvFLOGI; 195 uint32_t elsRcvPLOGI; 196 uint32_t elsRcvADISC; 197 uint32_t elsRcvPDISC; 198 uint32_t elsRcvFAN; 199 uint32_t elsRcvLOGO; 200 uint32_t elsRcvPRLO; 201 uint32_t elsRcvPRLI; 202 uint32_t elsRcvLIRR; 203 uint32_t elsRcvRPS; 204 uint32_t elsRcvRPL; 205 uint32_t elsRcvRRQ; 206 uint32_t elsXmitFLOGI; 207 uint32_t elsXmitFDISC; 208 uint32_t elsXmitPLOGI; 209 uint32_t elsXmitPRLI; 210 uint32_t elsXmitADISC; 211 uint32_t elsXmitLOGO; 212 uint32_t elsXmitSCR; 213 uint32_t elsXmitRNID; 214 uint32_t elsXmitFARP; 215 uint32_t elsXmitFARPR; 216 uint32_t elsXmitACC; 217 uint32_t elsXmitLSRJT; 218 219 uint32_t frameRcvBcast; 220 uint32_t frameRcvMulti; 221 uint32_t strayXmitCmpl; 222 uint32_t frameXmitDelay; 223 uint32_t xriCmdCmpl; 224 uint32_t xriStatErr; 225 uint32_t LinkUp; 226 uint32_t LinkDown; 227 uint32_t LinkMultiEvent; 228 uint32_t NoRcvBuf; 229 uint32_t fcpCmd; 230 uint32_t fcpCmpl; 231 uint32_t fcpRspErr; 232 uint32_t fcpRemoteStop; 233 uint32_t fcpPortRjt; 234 uint32_t fcpPortBusy; 235 uint32_t fcpError; 236 uint32_t fcpLocalErr; 237 }; 238 239 enum sysfs_mbox_state { 240 SMBOX_IDLE, 241 SMBOX_WRITING, 242 SMBOX_READING 243 }; 244 245 struct lpfc_sysfs_mbox { 246 enum sysfs_mbox_state state; 247 size_t offset; 248 struct lpfcMboxq * mbox; 249 }; 250 251 struct lpfc_hba; 252 253 254 enum discovery_state { 255 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 256 LPFC_VPORT_FAILED = 1, /* vport has failed */ 257 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 258 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 259 LPFC_FDISC = 8, /* FDISC sent for vport */ 260 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 261 * configured */ 262 LPFC_NS_REG = 10, /* Register with NameServer */ 263 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 264 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 265 * device authentication / discovery */ 266 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 267 LPFC_VPORT_READY = 32, 268 }; 269 270 enum hba_state { 271 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 272 LPFC_WARM_START = 1, /* HBA state after selective reset */ 273 LPFC_INIT_START = 2, /* Initial state after board reset */ 274 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 275 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 276 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 277 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 278 * CLEAR_LA */ 279 LPFC_HBA_READY = 32, 280 LPFC_HBA_ERROR = -1 281 }; 282 283 struct lpfc_vport { 284 struct lpfc_hba *phba; 285 struct list_head listentry; 286 uint8_t port_type; 287 #define LPFC_PHYSICAL_PORT 1 288 #define LPFC_NPIV_PORT 2 289 #define LPFC_FABRIC_PORT 3 290 enum discovery_state port_state; 291 292 uint16_t vpi; 293 uint16_t vfi; 294 uint8_t vpi_state; 295 #define LPFC_VPI_REGISTERED 0x1 296 297 uint32_t fc_flag; /* FC flags */ 298 /* Several of these flags are HBA centric and should be moved to 299 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 300 */ 301 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 302 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 303 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 304 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 305 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 306 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 307 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 308 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 309 #define FC_FABRIC 0x100 /* We are fabric attached */ 310 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 311 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 312 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 313 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 314 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 315 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 316 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 317 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 318 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 319 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 320 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 321 322 uint32_t ct_flags; 323 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 324 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 325 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 326 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 327 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 328 329 struct list_head fc_nodes; 330 331 /* Keep counters for the number of entries in each list. */ 332 uint16_t fc_plogi_cnt; 333 uint16_t fc_adisc_cnt; 334 uint16_t fc_reglogin_cnt; 335 uint16_t fc_prli_cnt; 336 uint16_t fc_unmap_cnt; 337 uint16_t fc_map_cnt; 338 uint16_t fc_npr_cnt; 339 uint16_t fc_unused_cnt; 340 struct serv_parm fc_sparam; /* buffer for our service parameters */ 341 342 uint32_t fc_myDID; /* fibre channel S_ID */ 343 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 344 345 int32_t stopped; /* HBA has not been restarted since last ERATT */ 346 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 347 348 uint32_t num_disc_nodes; /*in addition to hba_state */ 349 350 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 351 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 352 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 353 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 354 struct lpfc_name fc_nodename; /* fc nodename */ 355 struct lpfc_name fc_portname; /* fc portname */ 356 357 struct lpfc_work_evt disc_timeout_evt; 358 359 struct timer_list fc_disctmo; /* Discovery rescue timer */ 360 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 361 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 362 363 spinlock_t work_port_lock; 364 uint32_t work_port_events; /* Timeout to be handled */ 365 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 366 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 367 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 368 369 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 370 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 371 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 372 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 373 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 374 375 struct timer_list fc_fdmitmo; 376 struct timer_list els_tmofunc; 377 378 int unreg_vpi_cmpl; 379 380 uint8_t load_flag; 381 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 382 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 383 /* Vport Config Parameters */ 384 uint32_t cfg_scan_down; 385 uint32_t cfg_lun_queue_depth; 386 uint32_t cfg_nodev_tmo; 387 uint32_t cfg_devloss_tmo; 388 uint32_t cfg_restrict_login; 389 uint32_t cfg_peer_port_login; 390 uint32_t cfg_fcp_class; 391 uint32_t cfg_use_adisc; 392 uint32_t cfg_fdmi_on; 393 uint32_t cfg_discovery_threads; 394 uint32_t cfg_log_verbose; 395 uint32_t cfg_max_luns; 396 uint32_t cfg_enable_da_id; 397 uint32_t cfg_max_scsicmpl_time; 398 399 uint32_t dev_loss_tmo_changed; 400 401 struct fc_vport *fc_vport; 402 403 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 404 struct dentry *debug_disc_trc; 405 struct dentry *debug_nodelist; 406 struct dentry *vport_debugfs_root; 407 struct lpfc_debugfs_trc *disc_trc; 408 atomic_t disc_trc_cnt; 409 #endif 410 uint8_t stat_data_enabled; 411 uint8_t stat_data_blocked; 412 struct list_head rcv_buffer_list; 413 unsigned long rcv_buffer_time_stamp; 414 uint32_t vport_flag; 415 #define STATIC_VPORT 1 416 }; 417 418 struct hbq_s { 419 uint16_t entry_count; /* Current number of HBQ slots */ 420 uint16_t buffer_count; /* Current number of buffers posted */ 421 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 422 uint32_t hbqPutIdx; /* HBQ slot to use */ 423 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 424 void *hbq_virt; /* Virtual ptr to this hbq */ 425 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 426 /* Callback for HBQ buffer allocation */ 427 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 428 /* Callback for HBQ buffer free */ 429 void (*hbq_free_buffer) (struct lpfc_hba *, 430 struct hbq_dmabuf *); 431 }; 432 433 #define LPFC_MAX_HBQS 4 434 /* this matches the position in the lpfc_hbq_defs array */ 435 #define LPFC_ELS_HBQ 0 436 #define LPFC_EXTRA_HBQ 1 437 438 enum hba_temp_state { 439 HBA_NORMAL_TEMP, 440 HBA_OVER_TEMP 441 }; 442 443 enum intr_type_t { 444 NONE = 0, 445 INTx, 446 MSI, 447 MSIX, 448 }; 449 450 struct unsol_rcv_ct_ctx { 451 uint32_t ctxt_id; 452 uint32_t SID; 453 uint32_t oxid; 454 uint32_t flags; 455 #define UNSOL_VALID 0x00000001 456 }; 457 458 struct lpfc_hba { 459 /* SCSI interface function jump table entries */ 460 int (*lpfc_new_scsi_buf) 461 (struct lpfc_vport *, int); 462 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 463 (struct lpfc_hba *); 464 int (*lpfc_scsi_prep_dma_buf) 465 (struct lpfc_hba *, struct lpfc_scsi_buf *); 466 void (*lpfc_scsi_unprep_dma_buf) 467 (struct lpfc_hba *, struct lpfc_scsi_buf *); 468 void (*lpfc_release_scsi_buf) 469 (struct lpfc_hba *, struct lpfc_scsi_buf *); 470 void (*lpfc_rampdown_queue_depth) 471 (struct lpfc_hba *); 472 void (*lpfc_scsi_prep_cmnd) 473 (struct lpfc_vport *, struct lpfc_scsi_buf *, 474 struct lpfc_nodelist *); 475 /* IOCB interface function jump table entries */ 476 int (*__lpfc_sli_issue_iocb) 477 (struct lpfc_hba *, uint32_t, 478 struct lpfc_iocbq *, uint32_t); 479 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 480 struct lpfc_iocbq *); 481 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 482 483 484 IOCB_t * (*lpfc_get_iocb_from_iocbq) 485 (struct lpfc_iocbq *); 486 void (*lpfc_scsi_cmd_iocb_cmpl) 487 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 488 489 /* MBOX interface function jump table entries */ 490 int (*lpfc_sli_issue_mbox) 491 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 492 /* Slow-path IOCB process function jump table entries */ 493 void (*lpfc_sli_handle_slow_ring_event) 494 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 495 uint32_t mask); 496 /* INIT device interface function jump table entries */ 497 int (*lpfc_sli_hbq_to_firmware) 498 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 499 int (*lpfc_sli_brdrestart) 500 (struct lpfc_hba *); 501 int (*lpfc_sli_brdready) 502 (struct lpfc_hba *, uint32_t); 503 void (*lpfc_handle_eratt) 504 (struct lpfc_hba *); 505 void (*lpfc_stop_port) 506 (struct lpfc_hba *); 507 int (*lpfc_hba_init_link) 508 (struct lpfc_hba *); 509 int (*lpfc_hba_down_link) 510 (struct lpfc_hba *); 511 512 513 /* SLI4 specific HBA data structure */ 514 struct lpfc_sli4_hba sli4_hba; 515 516 struct lpfc_sli sli; 517 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 518 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 519 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 520 #define LPFC_SLI3_HBQ_ENABLED 0x01 521 #define LPFC_SLI3_NPIV_ENABLED 0x02 522 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 523 #define LPFC_SLI3_CRP_ENABLED 0x08 524 #define LPFC_SLI3_INB_ENABLED 0x10 525 #define LPFC_SLI3_BG_ENABLED 0x20 526 #define LPFC_SLI3_DSS_ENABLED 0x40 527 uint32_t iocb_cmd_size; 528 uint32_t iocb_rsp_size; 529 530 enum hba_state link_state; 531 uint32_t link_flag; /* link state flags */ 532 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 533 /* This flag is set while issuing */ 534 /* INIT_LINK mailbox command */ 535 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 536 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 537 538 uint32_t hba_flag; /* hba generic flags */ 539 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 540 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 541 #define HBA_FCOE_SUPPORT 0x4 /* HBA function supports FCOE */ 542 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 543 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 544 #define FCP_XRI_ABORT_EVENT 0x20 545 #define ELS_XRI_ABORT_EVENT 0x40 546 #define ASYNC_EVENT 0x80 547 #define LINK_DISABLED 0x100 /* Link disabled by user */ 548 #define FCF_DISC_INPROGRESS 0x200 /* FCF discovery in progress */ 549 #define HBA_FIP_SUPPORT 0x400 /* FIP support in HBA */ 550 #define HBA_AER_ENABLED 0x800 /* AER enabled with HBA */ 551 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 552 struct lpfc_dmabuf slim2p; 553 554 MAILBOX_t *mbox; 555 uint32_t *inb_ha_copy; 556 uint32_t *inb_counter; 557 uint32_t inb_last_counter; 558 uint32_t ha_copy; 559 struct _PCB *pcb; 560 struct _IOCB *IOCBs; 561 562 struct lpfc_dmabuf hbqslimp; 563 564 uint16_t pci_cfg_value; 565 566 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 567 568 uint32_t fc_eventTag; /* event tag for link attention */ 569 uint32_t link_events; 570 571 /* These fields used to be binfo */ 572 uint32_t fc_pref_DID; /* preferred D_ID */ 573 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 574 uint32_t fc_edtov; /* E_D_TOV timer value */ 575 uint32_t fc_arbtov; /* ARB_TOV timer value */ 576 uint32_t fc_ratov; /* R_A_TOV timer value */ 577 uint32_t fc_rttov; /* R_T_TOV timer value */ 578 uint32_t fc_altov; /* AL_TOV timer value */ 579 uint32_t fc_crtov; /* C_R_TOV timer value */ 580 uint32_t fc_citov; /* C_I_TOV timer value */ 581 582 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 583 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 584 585 uint32_t lmt; 586 587 uint32_t fc_topology; /* link topology, from LINK INIT */ 588 589 struct lpfc_stats fc_stat; 590 591 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 592 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 593 594 uint8_t wwnn[8]; 595 uint8_t wwpn[8]; 596 uint32_t RandomData[7]; 597 598 /* HBA Config Parameters */ 599 uint32_t cfg_ack0; 600 uint32_t cfg_enable_npiv; 601 uint32_t cfg_topology; 602 uint32_t cfg_link_speed; 603 uint32_t cfg_cr_delay; 604 uint32_t cfg_cr_count; 605 uint32_t cfg_multi_ring_support; 606 uint32_t cfg_multi_ring_rctl; 607 uint32_t cfg_multi_ring_type; 608 uint32_t cfg_poll; 609 uint32_t cfg_poll_tmo; 610 uint32_t cfg_use_msi; 611 uint32_t cfg_fcp_imax; 612 uint32_t cfg_fcp_wq_count; 613 uint32_t cfg_fcp_eq_count; 614 uint32_t cfg_sg_seg_cnt; 615 uint32_t cfg_prot_sg_seg_cnt; 616 uint32_t cfg_sg_dma_buf_size; 617 uint64_t cfg_soft_wwnn; 618 uint64_t cfg_soft_wwpn; 619 uint32_t cfg_hba_queue_depth; 620 uint32_t cfg_enable_hba_reset; 621 uint32_t cfg_enable_hba_heartbeat; 622 uint32_t cfg_enable_bg; 623 uint32_t cfg_log_verbose; 624 uint32_t cfg_aer_support; 625 uint32_t cfg_suppress_link_up; 626 627 lpfc_vpd_t vpd; /* vital product data */ 628 629 struct pci_dev *pcidev; 630 struct list_head work_list; 631 uint32_t work_ha; /* Host Attention Bits for WT */ 632 uint32_t work_ha_mask; /* HA Bits owned by WT */ 633 uint32_t work_hs; /* HS stored in case of ERRAT */ 634 uint32_t work_status[2]; /* Extra status from SLIM */ 635 636 wait_queue_head_t work_waitq; 637 struct task_struct *worker_thread; 638 unsigned long data_flags; 639 640 uint32_t hbq_in_use; /* HBQs in use flag */ 641 struct list_head rb_pend_list; /* Received buffers to be processed */ 642 uint32_t hbq_count; /* Count of configured HBQs */ 643 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 644 645 uint32_t fcp_qidx; /* next work queue to post work to */ 646 647 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 648 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 649 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 650 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 651 PCI BAR0 */ 652 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 653 PCI BAR2 */ 654 655 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 656 void __iomem *HAregaddr; /* virtual address for host attn reg */ 657 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 658 void __iomem *HSregaddr; /* virtual address for host status 659 reg */ 660 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 661 662 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 663 struct lpfc_pgp *port_gp; 664 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 665 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 666 667 int brd_no; /* FC board number */ 668 669 char SerialNumber[32]; /* adapter Serial Number */ 670 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 671 char ModelDesc[256]; /* Model Description */ 672 char ModelName[80]; /* Model Name */ 673 char ProgramType[256]; /* Program Type */ 674 char Port[20]; /* Port No */ 675 uint8_t vpd_flag; /* VPD data flag */ 676 677 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 678 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 679 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 680 #define VPD_PORT 0x8 /* valid vpd port data */ 681 #define VPD_MASK 0xf /* mask for any vpd data */ 682 683 uint8_t soft_wwn_enable; 684 685 struct timer_list fcp_poll_timer; 686 struct timer_list eratt_poll; 687 688 /* 689 * stat counters 690 */ 691 uint64_t fc4InputRequests; 692 uint64_t fc4OutputRequests; 693 uint64_t fc4ControlRequests; 694 uint64_t bg_guard_err_cnt; 695 uint64_t bg_apptag_err_cnt; 696 uint64_t bg_reftag_err_cnt; 697 698 struct lpfc_sysfs_mbox sysfs_mbox; 699 700 /* fastpath list. */ 701 spinlock_t scsi_buf_list_lock; 702 struct list_head lpfc_scsi_buf_list; 703 uint32_t total_scsi_bufs; 704 struct list_head lpfc_iocb_list; 705 uint32_t total_iocbq_bufs; 706 spinlock_t hbalock; 707 708 /* pci_mem_pools */ 709 struct pci_pool *lpfc_scsi_dma_buf_pool; 710 struct pci_pool *lpfc_mbuf_pool; 711 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 712 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 713 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 714 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 715 716 mempool_t *mbox_mem_pool; 717 mempool_t *nlp_mem_pool; 718 719 struct fc_host_statistics link_stats; 720 enum intr_type_t intr_type; 721 uint32_t intr_mode; 722 #define LPFC_INTR_ERROR 0xFFFFFFFF 723 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 724 725 struct list_head port_list; 726 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 727 uint16_t max_vpi; /* Maximum virtual nports */ 728 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 729 uint16_t max_vports; /* 730 * For IOV HBAs max_vpi can change 731 * after a reset. max_vports is max 732 * number of vports present. This can 733 * be greater than max_vpi. 734 */ 735 uint16_t vpi_base; 736 uint16_t vfi_base; 737 unsigned long *vpi_bmask; /* vpi allocation table */ 738 739 /* Data structure used by fabric iocb scheduler */ 740 struct list_head fabric_iocb_list; 741 atomic_t fabric_iocb_count; 742 struct timer_list fabric_block_timer; 743 unsigned long bit_flags; 744 #define FABRIC_COMANDS_BLOCKED 0 745 atomic_t num_rsrc_err; 746 atomic_t num_cmd_success; 747 unsigned long last_rsrc_error_time; 748 unsigned long last_ramp_down_time; 749 unsigned long last_ramp_up_time; 750 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 751 struct dentry *hba_debugfs_root; 752 atomic_t debugfs_vport_count; 753 struct dentry *debug_hbqinfo; 754 struct dentry *debug_dumpHostSlim; 755 struct dentry *debug_dumpHBASlim; 756 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 757 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 758 struct dentry *debug_slow_ring_trc; 759 struct lpfc_debugfs_trc *slow_ring_trc; 760 atomic_t slow_ring_trc_cnt; 761 #endif 762 763 /* Used for deferred freeing of ELS data buffers */ 764 struct list_head elsbuf; 765 int elsbuf_cnt; 766 int elsbuf_prev_cnt; 767 768 uint8_t temp_sensor_support; 769 /* Fields used for heart beat. */ 770 unsigned long last_completion_time; 771 struct timer_list hb_tmofunc; 772 uint8_t hb_outstanding; 773 enum hba_temp_state over_temp_state; 774 /* ndlp reference management */ 775 spinlock_t ndlp_lock; 776 /* 777 * Following bit will be set for all buffer tags which are not 778 * associated with any HBQ. 779 */ 780 #define QUE_BUFTAG_BIT (1<<31) 781 uint32_t buffer_tag_count; 782 int wait_4_mlo_maint_flg; 783 wait_queue_head_t wait_4_mlo_m_q; 784 /* data structure used for latency data collection */ 785 #define LPFC_NO_BUCKET 0 786 #define LPFC_LINEAR_BUCKET 1 787 #define LPFC_POWER2_BUCKET 2 788 uint8_t bucket_type; 789 uint32_t bucket_base; 790 uint32_t bucket_step; 791 792 /* Maximum number of events that can be outstanding at any time*/ 793 #define LPFC_MAX_EVT_COUNT 512 794 atomic_t fast_event_count; 795 uint32_t fcoe_eventtag; 796 uint32_t fcoe_eventtag_at_fcf_scan; 797 struct lpfc_fcf fcf; 798 uint8_t fc_map[3]; 799 uint8_t valid_vlan; 800 uint16_t vlan_id; 801 struct list_head fcf_conn_rec_list; 802 803 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 804 struct list_head ct_ev_waiters; 805 struct unsol_rcv_ct_ctx ct_ctx[64]; 806 uint32_t ctx_idx; 807 }; 808 809 static inline struct Scsi_Host * 810 lpfc_shost_from_vport(struct lpfc_vport *vport) 811 { 812 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 813 } 814 815 static inline void 816 lpfc_set_loopback_flag(struct lpfc_hba *phba) 817 { 818 if (phba->cfg_topology == FLAGS_LOCAL_LB) 819 phba->link_flag |= LS_LOOPBACK_MODE; 820 else 821 phba->link_flag &= ~LS_LOOPBACK_MODE; 822 } 823 824 static inline int 825 lpfc_is_link_up(struct lpfc_hba *phba) 826 { 827 return phba->link_state == LPFC_LINK_UP || 828 phba->link_state == LPFC_CLEAR_LA || 829 phba->link_state == LPFC_HBA_READY; 830 } 831 832 static inline void 833 lpfc_worker_wake_up(struct lpfc_hba *phba) 834 { 835 /* Set the lpfc data pending flag */ 836 set_bit(LPFC_DATA_READY, &phba->data_flags); 837 838 /* Wake up worker thread */ 839 wake_up(&phba->work_waitq); 840 return; 841 } 842 843 static inline void 844 lpfc_sli_read_hs(struct lpfc_hba *phba) 845 { 846 /* 847 * There was a link/board error. Read the status register to retrieve 848 * the error event and process it. 849 */ 850 phba->sli.slistat.err_attn_event++; 851 852 /* Save status info */ 853 phba->work_hs = readl(phba->HSregaddr); 854 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 855 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 856 857 /* Clear chip Host Attention error bit */ 858 writel(HA_ERATT, phba->HAregaddr); 859 readl(phba->HAregaddr); /* flush */ 860 phba->pport->stopped = 1; 861 862 return; 863 } 864