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 struct lpfc_sli2_slim; 24 25 #define LPFC_PCI_DEV_LP 0x1 26 #define LPFC_PCI_DEV_OC 0x2 27 28 #define LPFC_SLI_REV2 2 29 #define LPFC_SLI_REV3 3 30 #define LPFC_SLI_REV4 4 31 32 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */ 33 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 34 requests */ 35 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 36 the NameServer before giving up. */ 37 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 38 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 39 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi 40 cmnd for menlo needs nearly twice as for firmware 41 downloads using bsg */ 42 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ 43 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ 44 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ 45 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 46 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 47 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 48 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt 49 queue depth change in millisecs */ 50 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ 51 #define LPFC_MIN_TGT_QDEPTH 100 52 #define LPFC_MAX_TGT_QDEPTH 0xFFFF 53 54 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data 55 collection. */ 56 /* 57 * Following time intervals are used of adjusting SCSI device 58 * queue depths when there are driver resource error or Firmware 59 * resource error. 60 */ 61 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 62 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 63 64 /* Number of exchanges reserved for discovery to complete */ 65 #define LPFC_DISC_IOCB_BUFF_COUNT 20 66 67 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 68 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 69 70 /* Error Attention event polling interval */ 71 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ 72 73 /* Define macros for 64 bit support */ 74 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 75 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 76 #define getPaddr(high, low) ((dma_addr_t)( \ 77 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 78 /* Provide maximum configuration definitions. */ 79 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 80 #define FC_MAX_ADPTMSG 64 81 82 #define MAX_HBAEVT 32 83 84 /* Number of MSI-X vectors the driver uses */ 85 #define LPFC_MSIX_VECTORS 2 86 87 /* lpfc wait event data ready flag */ 88 #define LPFC_DATA_READY (1<<0) 89 90 enum lpfc_polling_flags { 91 ENABLE_FCP_RING_POLLING = 0x1, 92 DISABLE_FCP_RING_INT = 0x2 93 }; 94 95 /* Provide DMA memory definitions the driver uses per port instance. */ 96 struct lpfc_dmabuf { 97 struct list_head list; 98 void *virt; /* virtual address ptr */ 99 dma_addr_t phys; /* mapped address */ 100 uint32_t buffer_tag; /* used for tagged queue ring */ 101 }; 102 103 struct lpfc_dma_pool { 104 struct lpfc_dmabuf *elements; 105 uint32_t max_count; 106 uint32_t current_count; 107 }; 108 109 struct hbq_dmabuf { 110 struct lpfc_dmabuf hbuf; 111 struct lpfc_dmabuf dbuf; 112 uint32_t size; 113 uint32_t tag; 114 struct lpfc_cq_event cq_event; 115 unsigned long time_stamp; 116 }; 117 118 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 119 #define MEM_PRI 0x100 120 121 122 /****************************************************************************/ 123 /* Device VPD save area */ 124 /****************************************************************************/ 125 typedef struct lpfc_vpd { 126 uint32_t status; /* vpd status value */ 127 uint32_t length; /* number of bytes actually returned */ 128 struct { 129 uint32_t rsvd1; /* Revision numbers */ 130 uint32_t biuRev; 131 uint32_t smRev; 132 uint32_t smFwRev; 133 uint32_t endecRev; 134 uint16_t rBit; 135 uint8_t fcphHigh; 136 uint8_t fcphLow; 137 uint8_t feaLevelHigh; 138 uint8_t feaLevelLow; 139 uint32_t postKernRev; 140 uint32_t opFwRev; 141 uint8_t opFwName[16]; 142 uint32_t sli1FwRev; 143 uint8_t sli1FwName[16]; 144 uint32_t sli2FwRev; 145 uint8_t sli2FwName[16]; 146 } rev; 147 struct { 148 #ifdef __BIG_ENDIAN_BITFIELD 149 uint32_t rsvd3 :19; /* Reserved */ 150 uint32_t cdss : 1; /* Configure Data Security SLI */ 151 uint32_t rsvd2 : 3; /* Reserved */ 152 uint32_t cbg : 1; /* Configure BlockGuard */ 153 uint32_t cmv : 1; /* Configure Max VPIs */ 154 uint32_t ccrp : 1; /* Config Command Ring Polling */ 155 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 156 uint32_t chbs : 1; /* Cofigure Host Backing store */ 157 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 158 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 159 uint32_t cmx : 1; /* Configure Max XRIs */ 160 uint32_t cmr : 1; /* Configure Max RPIs */ 161 #else /* __LITTLE_ENDIAN */ 162 uint32_t cmr : 1; /* Configure Max RPIs */ 163 uint32_t cmx : 1; /* Configure Max XRIs */ 164 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 165 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 166 uint32_t chbs : 1; /* Cofigure Host Backing store */ 167 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 168 uint32_t ccrp : 1; /* Config Command Ring Polling */ 169 uint32_t cmv : 1; /* Configure Max VPIs */ 170 uint32_t cbg : 1; /* Configure BlockGuard */ 171 uint32_t rsvd2 : 3; /* Reserved */ 172 uint32_t cdss : 1; /* Configure Data Security SLI */ 173 uint32_t rsvd3 :19; /* Reserved */ 174 #endif 175 } sli3Feat; 176 } lpfc_vpd_t; 177 178 struct lpfc_scsi_buf; 179 180 181 /* 182 * lpfc stat counters 183 */ 184 struct lpfc_stats { 185 /* Statistics for ELS commands */ 186 uint32_t elsLogiCol; 187 uint32_t elsRetryExceeded; 188 uint32_t elsXmitRetry; 189 uint32_t elsDelayRetry; 190 uint32_t elsRcvDrop; 191 uint32_t elsRcvFrame; 192 uint32_t elsRcvRSCN; 193 uint32_t elsRcvRNID; 194 uint32_t elsRcvFARP; 195 uint32_t elsRcvFARPR; 196 uint32_t elsRcvFLOGI; 197 uint32_t elsRcvPLOGI; 198 uint32_t elsRcvADISC; 199 uint32_t elsRcvPDISC; 200 uint32_t elsRcvFAN; 201 uint32_t elsRcvLOGO; 202 uint32_t elsRcvPRLO; 203 uint32_t elsRcvPRLI; 204 uint32_t elsRcvLIRR; 205 uint32_t elsRcvRPS; 206 uint32_t elsRcvRPL; 207 uint32_t elsRcvRRQ; 208 uint32_t elsXmitFLOGI; 209 uint32_t elsXmitFDISC; 210 uint32_t elsXmitPLOGI; 211 uint32_t elsXmitPRLI; 212 uint32_t elsXmitADISC; 213 uint32_t elsXmitLOGO; 214 uint32_t elsXmitSCR; 215 uint32_t elsXmitRNID; 216 uint32_t elsXmitFARP; 217 uint32_t elsXmitFARPR; 218 uint32_t elsXmitACC; 219 uint32_t elsXmitLSRJT; 220 221 uint32_t frameRcvBcast; 222 uint32_t frameRcvMulti; 223 uint32_t strayXmitCmpl; 224 uint32_t frameXmitDelay; 225 uint32_t xriCmdCmpl; 226 uint32_t xriStatErr; 227 uint32_t LinkUp; 228 uint32_t LinkDown; 229 uint32_t LinkMultiEvent; 230 uint32_t NoRcvBuf; 231 uint32_t fcpCmd; 232 uint32_t fcpCmpl; 233 uint32_t fcpRspErr; 234 uint32_t fcpRemoteStop; 235 uint32_t fcpPortRjt; 236 uint32_t fcpPortBusy; 237 uint32_t fcpError; 238 uint32_t fcpLocalErr; 239 }; 240 241 enum sysfs_mbox_state { 242 SMBOX_IDLE, 243 SMBOX_WRITING, 244 SMBOX_READING 245 }; 246 247 struct lpfc_sysfs_mbox { 248 enum sysfs_mbox_state state; 249 size_t offset; 250 struct lpfcMboxq * mbox; 251 }; 252 253 struct lpfc_hba; 254 255 256 enum discovery_state { 257 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 258 LPFC_VPORT_FAILED = 1, /* vport has failed */ 259 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 260 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 261 LPFC_FDISC = 8, /* FDISC sent for vport */ 262 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 263 * configured */ 264 LPFC_NS_REG = 10, /* Register with NameServer */ 265 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 266 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 267 * device authentication / discovery */ 268 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 269 LPFC_VPORT_READY = 32, 270 }; 271 272 enum hba_state { 273 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 274 LPFC_WARM_START = 1, /* HBA state after selective reset */ 275 LPFC_INIT_START = 2, /* Initial state after board reset */ 276 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 277 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 278 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 279 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 280 * CLEAR_LA */ 281 LPFC_HBA_READY = 32, 282 LPFC_HBA_ERROR = -1 283 }; 284 285 struct lpfc_vport { 286 struct lpfc_hba *phba; 287 struct list_head listentry; 288 uint8_t port_type; 289 #define LPFC_PHYSICAL_PORT 1 290 #define LPFC_NPIV_PORT 2 291 #define LPFC_FABRIC_PORT 3 292 enum discovery_state port_state; 293 294 uint16_t vpi; 295 uint16_t vfi; 296 uint8_t vpi_state; 297 #define LPFC_VPI_REGISTERED 0x1 298 299 uint32_t fc_flag; /* FC flags */ 300 /* Several of these flags are HBA centric and should be moved to 301 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 302 */ 303 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 304 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 305 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 306 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 307 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 308 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 309 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 310 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 311 #define FC_FABRIC 0x100 /* We are fabric attached */ 312 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 313 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 314 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 315 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 316 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 317 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 318 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 319 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 320 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 321 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 322 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 323 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 324 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 325 326 uint32_t ct_flags; 327 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 328 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 329 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 330 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 331 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 332 333 struct list_head fc_nodes; 334 335 /* Keep counters for the number of entries in each list. */ 336 uint16_t fc_plogi_cnt; 337 uint16_t fc_adisc_cnt; 338 uint16_t fc_reglogin_cnt; 339 uint16_t fc_prli_cnt; 340 uint16_t fc_unmap_cnt; 341 uint16_t fc_map_cnt; 342 uint16_t fc_npr_cnt; 343 uint16_t fc_unused_cnt; 344 struct serv_parm fc_sparam; /* buffer for our service parameters */ 345 346 uint32_t fc_myDID; /* fibre channel S_ID */ 347 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 348 349 int32_t stopped; /* HBA has not been restarted since last ERATT */ 350 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 351 352 uint32_t num_disc_nodes; /*in addition to hba_state */ 353 354 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 355 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 356 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 357 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 358 struct lpfc_name fc_nodename; /* fc nodename */ 359 struct lpfc_name fc_portname; /* fc portname */ 360 361 struct lpfc_work_evt disc_timeout_evt; 362 363 struct timer_list fc_disctmo; /* Discovery rescue timer */ 364 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 365 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 366 367 spinlock_t work_port_lock; 368 uint32_t work_port_events; /* Timeout to be handled */ 369 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 370 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 371 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 372 373 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 374 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 375 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 376 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 377 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 378 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 379 380 struct timer_list fc_fdmitmo; 381 struct timer_list els_tmofunc; 382 383 int unreg_vpi_cmpl; 384 385 uint8_t load_flag; 386 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 387 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 388 /* Vport Config Parameters */ 389 uint32_t cfg_scan_down; 390 uint32_t cfg_lun_queue_depth; 391 uint32_t cfg_nodev_tmo; 392 uint32_t cfg_devloss_tmo; 393 uint32_t cfg_restrict_login; 394 uint32_t cfg_peer_port_login; 395 uint32_t cfg_fcp_class; 396 uint32_t cfg_use_adisc; 397 uint32_t cfg_fdmi_on; 398 uint32_t cfg_discovery_threads; 399 uint32_t cfg_log_verbose; 400 uint32_t cfg_max_luns; 401 uint32_t cfg_enable_da_id; 402 uint32_t cfg_max_scsicmpl_time; 403 404 uint32_t dev_loss_tmo_changed; 405 406 struct fc_vport *fc_vport; 407 408 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 409 struct dentry *debug_disc_trc; 410 struct dentry *debug_nodelist; 411 struct dentry *vport_debugfs_root; 412 struct lpfc_debugfs_trc *disc_trc; 413 atomic_t disc_trc_cnt; 414 #endif 415 uint8_t stat_data_enabled; 416 uint8_t stat_data_blocked; 417 struct list_head rcv_buffer_list; 418 unsigned long rcv_buffer_time_stamp; 419 uint32_t vport_flag; 420 #define STATIC_VPORT 1 421 }; 422 423 struct hbq_s { 424 uint16_t entry_count; /* Current number of HBQ slots */ 425 uint16_t buffer_count; /* Current number of buffers posted */ 426 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 427 uint32_t hbqPutIdx; /* HBQ slot to use */ 428 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 429 void *hbq_virt; /* Virtual ptr to this hbq */ 430 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 431 /* Callback for HBQ buffer allocation */ 432 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 433 /* Callback for HBQ buffer free */ 434 void (*hbq_free_buffer) (struct lpfc_hba *, 435 struct hbq_dmabuf *); 436 }; 437 438 #define LPFC_MAX_HBQS 4 439 /* this matches the position in the lpfc_hbq_defs array */ 440 #define LPFC_ELS_HBQ 0 441 #define LPFC_EXTRA_HBQ 1 442 443 enum hba_temp_state { 444 HBA_NORMAL_TEMP, 445 HBA_OVER_TEMP 446 }; 447 448 enum intr_type_t { 449 NONE = 0, 450 INTx, 451 MSI, 452 MSIX, 453 }; 454 455 struct unsol_rcv_ct_ctx { 456 uint32_t ctxt_id; 457 uint32_t SID; 458 uint32_t oxid; 459 uint32_t flags; 460 #define UNSOL_VALID 0x00000001 461 }; 462 463 struct lpfc_hba { 464 /* SCSI interface function jump table entries */ 465 int (*lpfc_new_scsi_buf) 466 (struct lpfc_vport *, int); 467 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 468 (struct lpfc_hba *); 469 int (*lpfc_scsi_prep_dma_buf) 470 (struct lpfc_hba *, struct lpfc_scsi_buf *); 471 void (*lpfc_scsi_unprep_dma_buf) 472 (struct lpfc_hba *, struct lpfc_scsi_buf *); 473 void (*lpfc_release_scsi_buf) 474 (struct lpfc_hba *, struct lpfc_scsi_buf *); 475 void (*lpfc_rampdown_queue_depth) 476 (struct lpfc_hba *); 477 void (*lpfc_scsi_prep_cmnd) 478 (struct lpfc_vport *, struct lpfc_scsi_buf *, 479 struct lpfc_nodelist *); 480 /* IOCB interface function jump table entries */ 481 int (*__lpfc_sli_issue_iocb) 482 (struct lpfc_hba *, uint32_t, 483 struct lpfc_iocbq *, uint32_t); 484 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 485 struct lpfc_iocbq *); 486 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 487 488 489 IOCB_t * (*lpfc_get_iocb_from_iocbq) 490 (struct lpfc_iocbq *); 491 void (*lpfc_scsi_cmd_iocb_cmpl) 492 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 493 494 /* MBOX interface function jump table entries */ 495 int (*lpfc_sli_issue_mbox) 496 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 497 /* Slow-path IOCB process function jump table entries */ 498 void (*lpfc_sli_handle_slow_ring_event) 499 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 500 uint32_t mask); 501 /* INIT device interface function jump table entries */ 502 int (*lpfc_sli_hbq_to_firmware) 503 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 504 int (*lpfc_sli_brdrestart) 505 (struct lpfc_hba *); 506 int (*lpfc_sli_brdready) 507 (struct lpfc_hba *, uint32_t); 508 void (*lpfc_handle_eratt) 509 (struct lpfc_hba *); 510 void (*lpfc_stop_port) 511 (struct lpfc_hba *); 512 int (*lpfc_hba_init_link) 513 (struct lpfc_hba *, uint32_t); 514 int (*lpfc_hba_down_link) 515 (struct lpfc_hba *, uint32_t); 516 517 /* SLI4 specific HBA data structure */ 518 struct lpfc_sli4_hba sli4_hba; 519 520 struct lpfc_sli sli; 521 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 522 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 523 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 524 #define LPFC_SLI3_HBQ_ENABLED 0x01 525 #define LPFC_SLI3_NPIV_ENABLED 0x02 526 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 527 #define LPFC_SLI3_CRP_ENABLED 0x08 528 #define LPFC_SLI3_BG_ENABLED 0x20 529 #define LPFC_SLI3_DSS_ENABLED 0x40 530 uint32_t iocb_cmd_size; 531 uint32_t iocb_rsp_size; 532 533 enum hba_state link_state; 534 uint32_t link_flag; /* link state flags */ 535 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 536 /* This flag is set while issuing */ 537 /* INIT_LINK mailbox command */ 538 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 539 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 540 541 uint32_t hba_flag; /* hba generic flags */ 542 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 543 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 544 #define HBA_FCOE_SUPPORT 0x4 /* HBA function supports FCOE */ 545 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 546 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 547 #define FCP_XRI_ABORT_EVENT 0x20 548 #define ELS_XRI_ABORT_EVENT 0x40 549 #define ASYNC_EVENT 0x80 550 #define LINK_DISABLED 0x100 /* Link disabled by user */ 551 #define FCF_DISC_INPROGRESS 0x200 /* FCF discovery in progress */ 552 #define HBA_FIP_SUPPORT 0x400 /* FIP support in HBA */ 553 #define HBA_AER_ENABLED 0x800 /* AER enabled with HBA */ 554 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 555 struct lpfc_dmabuf slim2p; 556 557 MAILBOX_t *mbox; 558 uint32_t *mbox_ext; 559 uint32_t ha_copy; 560 struct _PCB *pcb; 561 struct _IOCB *IOCBs; 562 563 struct lpfc_dmabuf hbqslimp; 564 565 uint16_t pci_cfg_value; 566 567 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 568 569 uint32_t fc_eventTag; /* event tag for link attention */ 570 uint32_t link_events; 571 572 /* These fields used to be binfo */ 573 uint32_t fc_pref_DID; /* preferred D_ID */ 574 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 575 uint32_t fc_edtov; /* E_D_TOV timer value */ 576 uint32_t fc_arbtov; /* ARB_TOV timer value */ 577 uint32_t fc_ratov; /* R_A_TOV timer value */ 578 uint32_t fc_rttov; /* R_T_TOV timer value */ 579 uint32_t fc_altov; /* AL_TOV timer value */ 580 uint32_t fc_crtov; /* C_R_TOV timer value */ 581 uint32_t fc_citov; /* C_I_TOV timer value */ 582 583 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 584 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 585 586 uint32_t lmt; 587 588 uint32_t fc_topology; /* link topology, from LINK INIT */ 589 590 struct lpfc_stats fc_stat; 591 592 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 593 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 594 595 uint8_t wwnn[8]; 596 uint8_t wwpn[8]; 597 uint32_t RandomData[7]; 598 599 /* HBA Config Parameters */ 600 uint32_t cfg_ack0; 601 uint32_t cfg_enable_npiv; 602 uint32_t cfg_topology; 603 uint32_t cfg_link_speed; 604 uint32_t cfg_cr_delay; 605 uint32_t cfg_cr_count; 606 uint32_t cfg_multi_ring_support; 607 uint32_t cfg_multi_ring_rctl; 608 uint32_t cfg_multi_ring_type; 609 uint32_t cfg_poll; 610 uint32_t cfg_poll_tmo; 611 uint32_t cfg_use_msi; 612 uint32_t cfg_fcp_imax; 613 uint32_t cfg_fcp_wq_count; 614 uint32_t cfg_fcp_eq_count; 615 uint32_t cfg_sg_seg_cnt; 616 uint32_t cfg_prot_sg_seg_cnt; 617 uint32_t cfg_sg_dma_buf_size; 618 uint64_t cfg_soft_wwnn; 619 uint64_t cfg_soft_wwpn; 620 uint32_t cfg_hba_queue_depth; 621 uint32_t cfg_enable_hba_reset; 622 uint32_t cfg_enable_hba_heartbeat; 623 uint32_t cfg_enable_bg; 624 uint32_t cfg_hostmem_hgp; 625 uint32_t cfg_log_verbose; 626 uint32_t cfg_aer_support; 627 uint32_t cfg_iocb_cnt; 628 uint32_t cfg_suppress_link_up; 629 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 630 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 631 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 632 633 lpfc_vpd_t vpd; /* vital product data */ 634 635 struct pci_dev *pcidev; 636 struct list_head work_list; 637 uint32_t work_ha; /* Host Attention Bits for WT */ 638 uint32_t work_ha_mask; /* HA Bits owned by WT */ 639 uint32_t work_hs; /* HS stored in case of ERRAT */ 640 uint32_t work_status[2]; /* Extra status from SLIM */ 641 642 wait_queue_head_t work_waitq; 643 struct task_struct *worker_thread; 644 unsigned long data_flags; 645 646 uint32_t hbq_in_use; /* HBQs in use flag */ 647 struct list_head rb_pend_list; /* Received buffers to be processed */ 648 uint32_t hbq_count; /* Count of configured HBQs */ 649 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 650 651 uint32_t fcp_qidx; /* next work queue to post work to */ 652 653 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 654 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 655 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 656 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 657 PCI BAR0 */ 658 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 659 PCI BAR2 */ 660 661 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 662 void __iomem *HAregaddr; /* virtual address for host attn reg */ 663 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 664 void __iomem *HSregaddr; /* virtual address for host status 665 reg */ 666 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 667 668 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 669 struct lpfc_pgp *port_gp; 670 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 671 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 672 673 int brd_no; /* FC board number */ 674 675 char SerialNumber[32]; /* adapter Serial Number */ 676 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 677 char ModelDesc[256]; /* Model Description */ 678 char ModelName[80]; /* Model Name */ 679 char ProgramType[256]; /* Program Type */ 680 char Port[20]; /* Port No */ 681 uint8_t vpd_flag; /* VPD data flag */ 682 683 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 684 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 685 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 686 #define VPD_PORT 0x8 /* valid vpd port data */ 687 #define VPD_MASK 0xf /* mask for any vpd data */ 688 689 uint8_t soft_wwn_enable; 690 691 struct timer_list fcp_poll_timer; 692 struct timer_list eratt_poll; 693 694 /* 695 * stat counters 696 */ 697 uint64_t fc4InputRequests; 698 uint64_t fc4OutputRequests; 699 uint64_t fc4ControlRequests; 700 uint64_t bg_guard_err_cnt; 701 uint64_t bg_apptag_err_cnt; 702 uint64_t bg_reftag_err_cnt; 703 704 struct lpfc_sysfs_mbox sysfs_mbox; 705 706 /* fastpath list. */ 707 spinlock_t scsi_buf_list_lock; 708 struct list_head lpfc_scsi_buf_list; 709 uint32_t total_scsi_bufs; 710 struct list_head lpfc_iocb_list; 711 uint32_t total_iocbq_bufs; 712 spinlock_t hbalock; 713 714 /* pci_mem_pools */ 715 struct pci_pool *lpfc_scsi_dma_buf_pool; 716 struct pci_pool *lpfc_mbuf_pool; 717 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 718 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 719 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 720 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 721 722 mempool_t *mbox_mem_pool; 723 mempool_t *nlp_mem_pool; 724 725 struct fc_host_statistics link_stats; 726 enum intr_type_t intr_type; 727 uint32_t intr_mode; 728 #define LPFC_INTR_ERROR 0xFFFFFFFF 729 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 730 731 struct list_head port_list; 732 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 733 uint16_t max_vpi; /* Maximum virtual nports */ 734 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 735 uint16_t max_vports; /* 736 * For IOV HBAs max_vpi can change 737 * after a reset. max_vports is max 738 * number of vports present. This can 739 * be greater than max_vpi. 740 */ 741 uint16_t vpi_base; 742 uint16_t vfi_base; 743 unsigned long *vpi_bmask; /* vpi allocation table */ 744 745 /* Data structure used by fabric iocb scheduler */ 746 struct list_head fabric_iocb_list; 747 atomic_t fabric_iocb_count; 748 struct timer_list fabric_block_timer; 749 unsigned long bit_flags; 750 #define FABRIC_COMANDS_BLOCKED 0 751 atomic_t num_rsrc_err; 752 atomic_t num_cmd_success; 753 unsigned long last_rsrc_error_time; 754 unsigned long last_ramp_down_time; 755 unsigned long last_ramp_up_time; 756 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 757 struct dentry *hba_debugfs_root; 758 atomic_t debugfs_vport_count; 759 struct dentry *debug_hbqinfo; 760 struct dentry *debug_dumpHostSlim; 761 struct dentry *debug_dumpHBASlim; 762 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 763 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 764 struct dentry *debug_slow_ring_trc; 765 struct lpfc_debugfs_trc *slow_ring_trc; 766 atomic_t slow_ring_trc_cnt; 767 #endif 768 769 /* Used for deferred freeing of ELS data buffers */ 770 struct list_head elsbuf; 771 int elsbuf_cnt; 772 int elsbuf_prev_cnt; 773 774 uint8_t temp_sensor_support; 775 /* Fields used for heart beat. */ 776 unsigned long last_completion_time; 777 struct timer_list hb_tmofunc; 778 uint8_t hb_outstanding; 779 enum hba_temp_state over_temp_state; 780 /* ndlp reference management */ 781 spinlock_t ndlp_lock; 782 /* 783 * Following bit will be set for all buffer tags which are not 784 * associated with any HBQ. 785 */ 786 #define QUE_BUFTAG_BIT (1<<31) 787 uint32_t buffer_tag_count; 788 int wait_4_mlo_maint_flg; 789 wait_queue_head_t wait_4_mlo_m_q; 790 /* data structure used for latency data collection */ 791 #define LPFC_NO_BUCKET 0 792 #define LPFC_LINEAR_BUCKET 1 793 #define LPFC_POWER2_BUCKET 2 794 uint8_t bucket_type; 795 uint32_t bucket_base; 796 uint32_t bucket_step; 797 798 /* Maximum number of events that can be outstanding at any time*/ 799 #define LPFC_MAX_EVT_COUNT 512 800 atomic_t fast_event_count; 801 uint32_t fcoe_eventtag; 802 uint32_t fcoe_eventtag_at_fcf_scan; 803 struct lpfc_fcf fcf; 804 uint8_t fc_map[3]; 805 uint8_t valid_vlan; 806 uint16_t vlan_id; 807 struct list_head fcf_conn_rec_list; 808 809 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 810 struct list_head ct_ev_waiters; 811 struct unsol_rcv_ct_ctx ct_ctx[64]; 812 uint32_t ctx_idx; 813 814 uint8_t menlo_flag; /* menlo generic flags */ 815 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 816 uint32_t iocb_cnt; 817 uint32_t iocb_max; 818 atomic_t sdev_cnt; 819 }; 820 821 static inline struct Scsi_Host * 822 lpfc_shost_from_vport(struct lpfc_vport *vport) 823 { 824 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 825 } 826 827 static inline void 828 lpfc_set_loopback_flag(struct lpfc_hba *phba) 829 { 830 if (phba->cfg_topology == FLAGS_LOCAL_LB) 831 phba->link_flag |= LS_LOOPBACK_MODE; 832 else 833 phba->link_flag &= ~LS_LOOPBACK_MODE; 834 } 835 836 static inline int 837 lpfc_is_link_up(struct lpfc_hba *phba) 838 { 839 return phba->link_state == LPFC_LINK_UP || 840 phba->link_state == LPFC_CLEAR_LA || 841 phba->link_state == LPFC_HBA_READY; 842 } 843 844 static inline void 845 lpfc_worker_wake_up(struct lpfc_hba *phba) 846 { 847 /* Set the lpfc data pending flag */ 848 set_bit(LPFC_DATA_READY, &phba->data_flags); 849 850 /* Wake up worker thread */ 851 wake_up(&phba->work_waitq); 852 return; 853 } 854 855 static inline void 856 lpfc_sli_read_hs(struct lpfc_hba *phba) 857 { 858 /* 859 * There was a link/board error. Read the status register to retrieve 860 * the error event and process it. 861 */ 862 phba->sli.slistat.err_attn_event++; 863 864 /* Save status info */ 865 phba->work_hs = readl(phba->HSregaddr); 866 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 867 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 868 869 /* Clear chip Host Attention error bit */ 870 writel(HA_ERATT, phba->HAregaddr); 871 readl(phba->HAregaddr); /* flush */ 872 phba->pport->stopped = 1; 873 874 return; 875 } 876