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