1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 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 10 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 elsRcvRLS; 206 uint32_t elsRcvRPS; 207 uint32_t elsRcvRPL; 208 uint32_t elsRcvRRQ; 209 uint32_t elsRcvRTV; 210 uint32_t elsRcvECHO; 211 uint32_t elsXmitFLOGI; 212 uint32_t elsXmitFDISC; 213 uint32_t elsXmitPLOGI; 214 uint32_t elsXmitPRLI; 215 uint32_t elsXmitADISC; 216 uint32_t elsXmitLOGO; 217 uint32_t elsXmitSCR; 218 uint32_t elsXmitRNID; 219 uint32_t elsXmitFARP; 220 uint32_t elsXmitFARPR; 221 uint32_t elsXmitACC; 222 uint32_t elsXmitLSRJT; 223 224 uint32_t frameRcvBcast; 225 uint32_t frameRcvMulti; 226 uint32_t strayXmitCmpl; 227 uint32_t frameXmitDelay; 228 uint32_t xriCmdCmpl; 229 uint32_t xriStatErr; 230 uint32_t LinkUp; 231 uint32_t LinkDown; 232 uint32_t LinkMultiEvent; 233 uint32_t NoRcvBuf; 234 uint32_t fcpCmd; 235 uint32_t fcpCmpl; 236 uint32_t fcpRspErr; 237 uint32_t fcpRemoteStop; 238 uint32_t fcpPortRjt; 239 uint32_t fcpPortBusy; 240 uint32_t fcpError; 241 uint32_t fcpLocalErr; 242 }; 243 244 enum sysfs_mbox_state { 245 SMBOX_IDLE, 246 SMBOX_WRITING, 247 SMBOX_READING 248 }; 249 250 struct lpfc_sysfs_mbox { 251 enum sysfs_mbox_state state; 252 size_t offset; 253 struct lpfcMboxq * mbox; 254 }; 255 256 struct lpfc_hba; 257 258 259 enum discovery_state { 260 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 261 LPFC_VPORT_FAILED = 1, /* vport has failed */ 262 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 263 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 264 LPFC_FDISC = 8, /* FDISC sent for vport */ 265 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 266 * configured */ 267 LPFC_NS_REG = 10, /* Register with NameServer */ 268 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 269 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 270 * device authentication / discovery */ 271 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 272 LPFC_VPORT_READY = 32, 273 }; 274 275 enum hba_state { 276 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 277 LPFC_WARM_START = 1, /* HBA state after selective reset */ 278 LPFC_INIT_START = 2, /* Initial state after board reset */ 279 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 280 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 281 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 282 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 283 * CLEAR_LA */ 284 LPFC_HBA_READY = 32, 285 LPFC_HBA_ERROR = -1 286 }; 287 288 struct lpfc_vport { 289 struct lpfc_hba *phba; 290 struct list_head listentry; 291 uint8_t port_type; 292 #define LPFC_PHYSICAL_PORT 1 293 #define LPFC_NPIV_PORT 2 294 #define LPFC_FABRIC_PORT 3 295 enum discovery_state port_state; 296 297 uint16_t vpi; 298 uint16_t vfi; 299 uint8_t vpi_state; 300 #define LPFC_VPI_REGISTERED 0x1 301 302 uint32_t fc_flag; /* FC flags */ 303 /* Several of these flags are HBA centric and should be moved to 304 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 305 */ 306 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 307 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 308 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 309 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 310 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 311 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 312 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 313 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 314 #define FC_FABRIC 0x100 /* We are fabric attached */ 315 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 316 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 317 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 318 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 319 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 320 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 321 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 322 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 323 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 324 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 325 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 326 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 327 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 328 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */ 329 330 uint32_t ct_flags; 331 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 332 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 333 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 334 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 335 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 336 337 struct list_head fc_nodes; 338 339 /* Keep counters for the number of entries in each list. */ 340 uint16_t fc_plogi_cnt; 341 uint16_t fc_adisc_cnt; 342 uint16_t fc_reglogin_cnt; 343 uint16_t fc_prli_cnt; 344 uint16_t fc_unmap_cnt; 345 uint16_t fc_map_cnt; 346 uint16_t fc_npr_cnt; 347 uint16_t fc_unused_cnt; 348 struct serv_parm fc_sparam; /* buffer for our service parameters */ 349 350 uint32_t fc_myDID; /* fibre channel S_ID */ 351 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 352 struct lpfc_name fabric_portname; 353 struct lpfc_name fabric_nodename; 354 355 int32_t stopped; /* HBA has not been restarted since last ERATT */ 356 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 357 358 uint32_t num_disc_nodes; /*in addition to hba_state */ 359 360 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 361 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 362 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 363 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 364 struct lpfc_name fc_nodename; /* fc nodename */ 365 struct lpfc_name fc_portname; /* fc portname */ 366 367 struct lpfc_work_evt disc_timeout_evt; 368 369 struct timer_list fc_disctmo; /* Discovery rescue timer */ 370 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 371 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 372 373 spinlock_t work_port_lock; 374 uint32_t work_port_events; /* Timeout to be handled */ 375 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 376 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 377 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 378 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */ 379 380 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 381 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 382 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 383 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 384 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 385 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 386 387 struct timer_list fc_fdmitmo; 388 struct timer_list els_tmofunc; 389 struct timer_list delayed_disc_tmo; 390 391 int unreg_vpi_cmpl; 392 393 uint8_t load_flag; 394 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 395 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 396 /* Vport Config Parameters */ 397 uint32_t cfg_scan_down; 398 uint32_t cfg_lun_queue_depth; 399 uint32_t cfg_nodev_tmo; 400 uint32_t cfg_devloss_tmo; 401 uint32_t cfg_restrict_login; 402 uint32_t cfg_peer_port_login; 403 uint32_t cfg_fcp_class; 404 uint32_t cfg_use_adisc; 405 uint32_t cfg_fdmi_on; 406 uint32_t cfg_discovery_threads; 407 uint32_t cfg_log_verbose; 408 uint32_t cfg_max_luns; 409 uint32_t cfg_enable_da_id; 410 uint32_t cfg_max_scsicmpl_time; 411 uint32_t cfg_tgt_queue_depth; 412 413 uint32_t dev_loss_tmo_changed; 414 415 struct fc_vport *fc_vport; 416 417 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 418 struct dentry *debug_disc_trc; 419 struct dentry *debug_nodelist; 420 struct dentry *vport_debugfs_root; 421 struct lpfc_debugfs_trc *disc_trc; 422 atomic_t disc_trc_cnt; 423 #endif 424 uint8_t stat_data_enabled; 425 uint8_t stat_data_blocked; 426 struct list_head rcv_buffer_list; 427 unsigned long rcv_buffer_time_stamp; 428 uint32_t vport_flag; 429 #define STATIC_VPORT 1 430 }; 431 432 struct hbq_s { 433 uint16_t entry_count; /* Current number of HBQ slots */ 434 uint16_t buffer_count; /* Current number of buffers posted */ 435 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 436 uint32_t hbqPutIdx; /* HBQ slot to use */ 437 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 438 void *hbq_virt; /* Virtual ptr to this hbq */ 439 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 440 /* Callback for HBQ buffer allocation */ 441 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 442 /* Callback for HBQ buffer free */ 443 void (*hbq_free_buffer) (struct lpfc_hba *, 444 struct hbq_dmabuf *); 445 }; 446 447 #define LPFC_MAX_HBQS 4 448 /* this matches the position in the lpfc_hbq_defs array */ 449 #define LPFC_ELS_HBQ 0 450 #define LPFC_EXTRA_HBQ 1 451 452 enum hba_temp_state { 453 HBA_NORMAL_TEMP, 454 HBA_OVER_TEMP 455 }; 456 457 enum intr_type_t { 458 NONE = 0, 459 INTx, 460 MSI, 461 MSIX, 462 }; 463 464 struct unsol_rcv_ct_ctx { 465 uint32_t ctxt_id; 466 uint32_t SID; 467 uint32_t oxid; 468 uint32_t flags; 469 #define UNSOL_VALID 0x00000001 470 }; 471 472 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/ 473 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */ 474 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */ 475 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */ 476 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */ 477 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */ 478 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */ 479 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G 480 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \ 481 (1 << LPFC_USER_LINK_SPEED_10G) | \ 482 (1 << LPFC_USER_LINK_SPEED_8G) | \ 483 (1 << LPFC_USER_LINK_SPEED_4G) | \ 484 (1 << LPFC_USER_LINK_SPEED_2G) | \ 485 (1 << LPFC_USER_LINK_SPEED_1G) | \ 486 (1 << LPFC_USER_LINK_SPEED_AUTO)) 487 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16" 488 489 struct lpfc_hba { 490 /* SCSI interface function jump table entries */ 491 int (*lpfc_new_scsi_buf) 492 (struct lpfc_vport *, int); 493 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 494 (struct lpfc_hba *, struct lpfc_nodelist *); 495 int (*lpfc_scsi_prep_dma_buf) 496 (struct lpfc_hba *, struct lpfc_scsi_buf *); 497 void (*lpfc_scsi_unprep_dma_buf) 498 (struct lpfc_hba *, struct lpfc_scsi_buf *); 499 void (*lpfc_release_scsi_buf) 500 (struct lpfc_hba *, struct lpfc_scsi_buf *); 501 void (*lpfc_rampdown_queue_depth) 502 (struct lpfc_hba *); 503 void (*lpfc_scsi_prep_cmnd) 504 (struct lpfc_vport *, struct lpfc_scsi_buf *, 505 struct lpfc_nodelist *); 506 /* IOCB interface function jump table entries */ 507 int (*__lpfc_sli_issue_iocb) 508 (struct lpfc_hba *, uint32_t, 509 struct lpfc_iocbq *, uint32_t); 510 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 511 struct lpfc_iocbq *); 512 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 513 514 515 IOCB_t * (*lpfc_get_iocb_from_iocbq) 516 (struct lpfc_iocbq *); 517 void (*lpfc_scsi_cmd_iocb_cmpl) 518 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 519 520 /* MBOX interface function jump table entries */ 521 int (*lpfc_sli_issue_mbox) 522 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 523 /* Slow-path IOCB process function jump table entries */ 524 void (*lpfc_sli_handle_slow_ring_event) 525 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 526 uint32_t mask); 527 /* INIT device interface function jump table entries */ 528 int (*lpfc_sli_hbq_to_firmware) 529 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 530 int (*lpfc_sli_brdrestart) 531 (struct lpfc_hba *); 532 int (*lpfc_sli_brdready) 533 (struct lpfc_hba *, uint32_t); 534 void (*lpfc_handle_eratt) 535 (struct lpfc_hba *); 536 void (*lpfc_stop_port) 537 (struct lpfc_hba *); 538 int (*lpfc_hba_init_link) 539 (struct lpfc_hba *, uint32_t); 540 int (*lpfc_hba_down_link) 541 (struct lpfc_hba *, uint32_t); 542 543 /* SLI4 specific HBA data structure */ 544 struct lpfc_sli4_hba sli4_hba; 545 546 struct lpfc_sli sli; 547 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 548 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 549 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 550 #define LPFC_SLI3_HBQ_ENABLED 0x01 551 #define LPFC_SLI3_NPIV_ENABLED 0x02 552 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 553 #define LPFC_SLI3_CRP_ENABLED 0x08 554 #define LPFC_SLI3_BG_ENABLED 0x20 555 #define LPFC_SLI3_DSS_ENABLED 0x40 556 #define LPFC_SLI4_PERFH_ENABLED 0x80 557 #define LPFC_SLI4_PHWQ_ENABLED 0x100 558 uint32_t iocb_cmd_size; 559 uint32_t iocb_rsp_size; 560 561 enum hba_state link_state; 562 uint32_t link_flag; /* link state flags */ 563 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 564 /* This flag is set while issuing */ 565 /* INIT_LINK mailbox command */ 566 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 567 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 568 569 uint32_t hba_flag; /* hba generic flags */ 570 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 571 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 572 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */ 573 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 574 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 575 #define FCP_XRI_ABORT_EVENT 0x20 576 #define ELS_XRI_ABORT_EVENT 0x40 577 #define ASYNC_EVENT 0x80 578 #define LINK_DISABLED 0x100 /* Link disabled by user */ 579 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */ 580 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */ 581 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */ 582 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */ 583 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */ 584 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */ 585 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 586 struct lpfc_dmabuf slim2p; 587 588 MAILBOX_t *mbox; 589 uint32_t *mbox_ext; 590 uint32_t ha_copy; 591 struct _PCB *pcb; 592 struct _IOCB *IOCBs; 593 594 struct lpfc_dmabuf hbqslimp; 595 596 uint16_t pci_cfg_value; 597 598 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 599 600 uint32_t fc_eventTag; /* event tag for link attention */ 601 uint32_t link_events; 602 603 /* These fields used to be binfo */ 604 uint32_t fc_pref_DID; /* preferred D_ID */ 605 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 606 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */ 607 uint32_t fc_edtov; /* E_D_TOV timer value */ 608 uint32_t fc_arbtov; /* ARB_TOV timer value */ 609 uint32_t fc_ratov; /* R_A_TOV timer value */ 610 uint32_t fc_rttov; /* R_T_TOV timer value */ 611 uint32_t fc_altov; /* AL_TOV timer value */ 612 uint32_t fc_crtov; /* C_R_TOV timer value */ 613 uint32_t fc_citov; /* C_I_TOV timer value */ 614 615 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 616 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 617 618 uint32_t lmt; 619 620 uint32_t fc_topology; /* link topology, from LINK INIT */ 621 622 struct lpfc_stats fc_stat; 623 624 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 625 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 626 627 uint8_t wwnn[8]; 628 uint8_t wwpn[8]; 629 uint32_t RandomData[7]; 630 631 /* HBA Config Parameters */ 632 uint32_t cfg_ack0; 633 uint32_t cfg_enable_npiv; 634 uint32_t cfg_enable_rrq; 635 uint32_t cfg_topology; 636 uint32_t cfg_link_speed; 637 uint32_t cfg_cr_delay; 638 uint32_t cfg_cr_count; 639 uint32_t cfg_multi_ring_support; 640 uint32_t cfg_multi_ring_rctl; 641 uint32_t cfg_multi_ring_type; 642 uint32_t cfg_poll; 643 uint32_t cfg_poll_tmo; 644 uint32_t cfg_use_msi; 645 uint32_t cfg_fcp_imax; 646 uint32_t cfg_fcp_wq_count; 647 uint32_t cfg_fcp_eq_count; 648 uint32_t cfg_sg_seg_cnt; 649 uint32_t cfg_prot_sg_seg_cnt; 650 uint32_t cfg_sg_dma_buf_size; 651 uint64_t cfg_soft_wwnn; 652 uint64_t cfg_soft_wwpn; 653 uint32_t cfg_hba_queue_depth; 654 uint32_t cfg_enable_hba_reset; 655 uint32_t cfg_enable_hba_heartbeat; 656 uint32_t cfg_enable_bg; 657 uint32_t cfg_hostmem_hgp; 658 uint32_t cfg_log_verbose; 659 uint32_t cfg_aer_support; 660 uint32_t cfg_iocb_cnt; 661 uint32_t cfg_suppress_link_up; 662 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 663 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 664 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 665 uint32_t cfg_enable_dss; 666 lpfc_vpd_t vpd; /* vital product data */ 667 668 struct pci_dev *pcidev; 669 struct list_head work_list; 670 uint32_t work_ha; /* Host Attention Bits for WT */ 671 uint32_t work_ha_mask; /* HA Bits owned by WT */ 672 uint32_t work_hs; /* HS stored in case of ERRAT */ 673 uint32_t work_status[2]; /* Extra status from SLIM */ 674 675 wait_queue_head_t work_waitq; 676 struct task_struct *worker_thread; 677 unsigned long data_flags; 678 679 uint32_t hbq_in_use; /* HBQs in use flag */ 680 struct list_head rb_pend_list; /* Received buffers to be processed */ 681 uint32_t hbq_count; /* Count of configured HBQs */ 682 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 683 684 uint32_t fcp_qidx; /* next work queue to post work to */ 685 686 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 687 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 688 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 689 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 690 PCI BAR0 */ 691 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 692 PCI BAR2 */ 693 694 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 695 void __iomem *HAregaddr; /* virtual address for host attn reg */ 696 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 697 void __iomem *HSregaddr; /* virtual address for host status 698 reg */ 699 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 700 701 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 702 struct lpfc_pgp *port_gp; 703 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 704 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 705 706 int brd_no; /* FC board number */ 707 708 char SerialNumber[32]; /* adapter Serial Number */ 709 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 710 char ModelDesc[256]; /* Model Description */ 711 char ModelName[80]; /* Model Name */ 712 char ProgramType[256]; /* Program Type */ 713 char Port[20]; /* Port No */ 714 uint8_t vpd_flag; /* VPD data flag */ 715 716 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 717 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 718 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 719 #define VPD_PORT 0x8 /* valid vpd port data */ 720 #define VPD_MASK 0xf /* mask for any vpd data */ 721 722 uint8_t soft_wwn_enable; 723 724 struct timer_list fcp_poll_timer; 725 struct timer_list eratt_poll; 726 727 /* 728 * stat counters 729 */ 730 uint64_t fc4InputRequests; 731 uint64_t fc4OutputRequests; 732 uint64_t fc4ControlRequests; 733 uint64_t bg_guard_err_cnt; 734 uint64_t bg_apptag_err_cnt; 735 uint64_t bg_reftag_err_cnt; 736 737 struct lpfc_sysfs_mbox sysfs_mbox; 738 739 /* fastpath list. */ 740 spinlock_t scsi_buf_list_lock; 741 struct list_head lpfc_scsi_buf_list; 742 uint32_t total_scsi_bufs; 743 struct list_head lpfc_iocb_list; 744 uint32_t total_iocbq_bufs; 745 struct list_head active_rrq_list; 746 spinlock_t hbalock; 747 748 /* pci_mem_pools */ 749 struct pci_pool *lpfc_scsi_dma_buf_pool; 750 struct pci_pool *lpfc_mbuf_pool; 751 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 752 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 753 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 754 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 755 756 mempool_t *mbox_mem_pool; 757 mempool_t *nlp_mem_pool; 758 mempool_t *rrq_pool; 759 760 struct fc_host_statistics link_stats; 761 enum intr_type_t intr_type; 762 uint32_t intr_mode; 763 #define LPFC_INTR_ERROR 0xFFFFFFFF 764 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 765 766 struct list_head port_list; 767 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 768 uint16_t max_vpi; /* Maximum virtual nports */ 769 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 770 uint16_t max_vports; /* 771 * For IOV HBAs max_vpi can change 772 * after a reset. max_vports is max 773 * number of vports present. This can 774 * be greater than max_vpi. 775 */ 776 uint16_t vpi_base; 777 uint16_t vfi_base; 778 unsigned long *vpi_bmask; /* vpi allocation table */ 779 780 /* Data structure used by fabric iocb scheduler */ 781 struct list_head fabric_iocb_list; 782 atomic_t fabric_iocb_count; 783 struct timer_list fabric_block_timer; 784 unsigned long bit_flags; 785 #define FABRIC_COMANDS_BLOCKED 0 786 atomic_t num_rsrc_err; 787 atomic_t num_cmd_success; 788 unsigned long last_rsrc_error_time; 789 unsigned long last_ramp_down_time; 790 unsigned long last_ramp_up_time; 791 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 792 struct dentry *hba_debugfs_root; 793 atomic_t debugfs_vport_count; 794 struct dentry *debug_hbqinfo; 795 struct dentry *debug_dumpHostSlim; 796 struct dentry *debug_dumpHBASlim; 797 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 798 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 799 struct dentry *debug_slow_ring_trc; 800 struct lpfc_debugfs_trc *slow_ring_trc; 801 atomic_t slow_ring_trc_cnt; 802 /* iDiag debugfs sub-directory */ 803 struct dentry *idiag_root; 804 struct dentry *idiag_pci_cfg; 805 struct dentry *idiag_que_info; 806 #endif 807 808 /* Used for deferred freeing of ELS data buffers */ 809 struct list_head elsbuf; 810 int elsbuf_cnt; 811 int elsbuf_prev_cnt; 812 813 uint8_t temp_sensor_support; 814 /* Fields used for heart beat. */ 815 unsigned long last_completion_time; 816 unsigned long skipped_hb; 817 struct timer_list hb_tmofunc; 818 uint8_t hb_outstanding; 819 struct timer_list rrq_tmr; 820 enum hba_temp_state over_temp_state; 821 /* ndlp reference management */ 822 spinlock_t ndlp_lock; 823 /* 824 * Following bit will be set for all buffer tags which are not 825 * associated with any HBQ. 826 */ 827 #define QUE_BUFTAG_BIT (1<<31) 828 uint32_t buffer_tag_count; 829 int wait_4_mlo_maint_flg; 830 wait_queue_head_t wait_4_mlo_m_q; 831 /* data structure used for latency data collection */ 832 #define LPFC_NO_BUCKET 0 833 #define LPFC_LINEAR_BUCKET 1 834 #define LPFC_POWER2_BUCKET 2 835 uint8_t bucket_type; 836 uint32_t bucket_base; 837 uint32_t bucket_step; 838 839 /* Maximum number of events that can be outstanding at any time*/ 840 #define LPFC_MAX_EVT_COUNT 512 841 atomic_t fast_event_count; 842 uint32_t fcoe_eventtag; 843 uint32_t fcoe_eventtag_at_fcf_scan; 844 struct lpfc_fcf fcf; 845 uint8_t fc_map[3]; 846 uint8_t valid_vlan; 847 uint16_t vlan_id; 848 struct list_head fcf_conn_rec_list; 849 850 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 851 struct list_head ct_ev_waiters; 852 struct unsol_rcv_ct_ctx ct_ctx[64]; 853 uint32_t ctx_idx; 854 855 uint8_t menlo_flag; /* menlo generic flags */ 856 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 857 uint32_t iocb_cnt; 858 uint32_t iocb_max; 859 atomic_t sdev_cnt; 860 uint8_t fips_spec_rev; 861 uint8_t fips_level; 862 }; 863 864 static inline struct Scsi_Host * 865 lpfc_shost_from_vport(struct lpfc_vport *vport) 866 { 867 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 868 } 869 870 static inline void 871 lpfc_set_loopback_flag(struct lpfc_hba *phba) 872 { 873 if (phba->cfg_topology == FLAGS_LOCAL_LB) 874 phba->link_flag |= LS_LOOPBACK_MODE; 875 else 876 phba->link_flag &= ~LS_LOOPBACK_MODE; 877 } 878 879 static inline int 880 lpfc_is_link_up(struct lpfc_hba *phba) 881 { 882 return phba->link_state == LPFC_LINK_UP || 883 phba->link_state == LPFC_CLEAR_LA || 884 phba->link_state == LPFC_HBA_READY; 885 } 886 887 static inline void 888 lpfc_worker_wake_up(struct lpfc_hba *phba) 889 { 890 /* Set the lpfc data pending flag */ 891 set_bit(LPFC_DATA_READY, &phba->data_flags); 892 893 /* Wake up worker thread */ 894 wake_up(&phba->work_waitq); 895 return; 896 } 897 898 static inline void 899 lpfc_sli_read_hs(struct lpfc_hba *phba) 900 { 901 /* 902 * There was a link/board error. Read the status register to retrieve 903 * the error event and process it. 904 */ 905 phba->sli.slistat.err_attn_event++; 906 907 /* Save status info */ 908 phba->work_hs = readl(phba->HSregaddr); 909 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 910 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 911 912 /* Clear chip Host Attention error bit */ 913 writel(HA_ERATT, phba->HAregaddr); 914 readl(phba->HAregaddr); /* flush */ 915 phba->pport->stopped = 1; 916 917 return; 918 } 919