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 24 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS) 25 #define CONFIG_SCSI_LPFC_DEBUG_FS 26 #endif 27 28 struct lpfc_sli2_slim; 29 30 #define LPFC_PCI_DEV_LP 0x1 31 #define LPFC_PCI_DEV_OC 0x2 32 33 #define LPFC_SLI_REV2 2 34 #define LPFC_SLI_REV3 3 35 #define LPFC_SLI_REV4 4 36 37 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */ 38 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 39 requests */ 40 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 41 the NameServer before giving up. */ 42 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 43 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 44 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi 45 cmnd for menlo needs nearly twice as for firmware 46 downloads using bsg */ 47 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ 48 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ 49 #define LPFC_MAX_SGE_SIZE 0x80000000 /* Maximum data allowed in a SGE */ 50 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ 51 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 52 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 53 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 54 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt 55 queue depth change in millisecs */ 56 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ 57 #define LPFC_MIN_TGT_QDEPTH 10 58 #define LPFC_MAX_TGT_QDEPTH 0xFFFF 59 60 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data 61 collection. */ 62 /* 63 * Following time intervals are used of adjusting SCSI device 64 * queue depths when there are driver resource error or Firmware 65 * resource error. 66 */ 67 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 68 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 69 70 /* Number of exchanges reserved for discovery to complete */ 71 #define LPFC_DISC_IOCB_BUFF_COUNT 20 72 73 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 74 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 75 76 /* Error Attention event polling interval */ 77 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ 78 79 /* Define macros for 64 bit support */ 80 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 81 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 82 #define getPaddr(high, low) ((dma_addr_t)( \ 83 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 84 /* Provide maximum configuration definitions. */ 85 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 86 #define FC_MAX_ADPTMSG 64 87 88 #define MAX_HBAEVT 32 89 90 /* Number of MSI-X vectors the driver uses */ 91 #define LPFC_MSIX_VECTORS 2 92 93 /* lpfc wait event data ready flag */ 94 #define LPFC_DATA_READY (1<<0) 95 96 enum lpfc_polling_flags { 97 ENABLE_FCP_RING_POLLING = 0x1, 98 DISABLE_FCP_RING_INT = 0x2 99 }; 100 101 /* Provide DMA memory definitions the driver uses per port instance. */ 102 struct lpfc_dmabuf { 103 struct list_head list; 104 void *virt; /* virtual address ptr */ 105 dma_addr_t phys; /* mapped address */ 106 uint32_t buffer_tag; /* used for tagged queue ring */ 107 }; 108 109 struct lpfc_dma_pool { 110 struct lpfc_dmabuf *elements; 111 uint32_t max_count; 112 uint32_t current_count; 113 }; 114 115 struct hbq_dmabuf { 116 struct lpfc_dmabuf hbuf; 117 struct lpfc_dmabuf dbuf; 118 uint32_t size; 119 uint32_t tag; 120 struct lpfc_cq_event cq_event; 121 unsigned long time_stamp; 122 }; 123 124 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 125 #define MEM_PRI 0x100 126 127 128 /****************************************************************************/ 129 /* Device VPD save area */ 130 /****************************************************************************/ 131 typedef struct lpfc_vpd { 132 uint32_t status; /* vpd status value */ 133 uint32_t length; /* number of bytes actually returned */ 134 struct { 135 uint32_t rsvd1; /* Revision numbers */ 136 uint32_t biuRev; 137 uint32_t smRev; 138 uint32_t smFwRev; 139 uint32_t endecRev; 140 uint16_t rBit; 141 uint8_t fcphHigh; 142 uint8_t fcphLow; 143 uint8_t feaLevelHigh; 144 uint8_t feaLevelLow; 145 uint32_t postKernRev; 146 uint32_t opFwRev; 147 uint8_t opFwName[16]; 148 uint32_t sli1FwRev; 149 uint8_t sli1FwName[16]; 150 uint32_t sli2FwRev; 151 uint8_t sli2FwName[16]; 152 } rev; 153 struct { 154 #ifdef __BIG_ENDIAN_BITFIELD 155 uint32_t rsvd3 :19; /* Reserved */ 156 uint32_t cdss : 1; /* Configure Data Security SLI */ 157 uint32_t rsvd2 : 3; /* Reserved */ 158 uint32_t cbg : 1; /* Configure BlockGuard */ 159 uint32_t cmv : 1; /* Configure Max VPIs */ 160 uint32_t ccrp : 1; /* Config Command Ring Polling */ 161 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 162 uint32_t chbs : 1; /* Cofigure Host Backing store */ 163 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 164 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 165 uint32_t cmx : 1; /* Configure Max XRIs */ 166 uint32_t cmr : 1; /* Configure Max RPIs */ 167 #else /* __LITTLE_ENDIAN */ 168 uint32_t cmr : 1; /* Configure Max RPIs */ 169 uint32_t cmx : 1; /* Configure Max XRIs */ 170 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 171 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 172 uint32_t chbs : 1; /* Cofigure Host Backing store */ 173 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 174 uint32_t ccrp : 1; /* Config Command Ring Polling */ 175 uint32_t cmv : 1; /* Configure Max VPIs */ 176 uint32_t cbg : 1; /* Configure BlockGuard */ 177 uint32_t rsvd2 : 3; /* Reserved */ 178 uint32_t cdss : 1; /* Configure Data Security SLI */ 179 uint32_t rsvd3 :19; /* Reserved */ 180 #endif 181 } sli3Feat; 182 } lpfc_vpd_t; 183 184 struct lpfc_scsi_buf; 185 186 187 /* 188 * lpfc stat counters 189 */ 190 struct lpfc_stats { 191 /* Statistics for ELS commands */ 192 uint32_t elsLogiCol; 193 uint32_t elsRetryExceeded; 194 uint32_t elsXmitRetry; 195 uint32_t elsDelayRetry; 196 uint32_t elsRcvDrop; 197 uint32_t elsRcvFrame; 198 uint32_t elsRcvRSCN; 199 uint32_t elsRcvRNID; 200 uint32_t elsRcvFARP; 201 uint32_t elsRcvFARPR; 202 uint32_t elsRcvFLOGI; 203 uint32_t elsRcvPLOGI; 204 uint32_t elsRcvADISC; 205 uint32_t elsRcvPDISC; 206 uint32_t elsRcvFAN; 207 uint32_t elsRcvLOGO; 208 uint32_t elsRcvPRLO; 209 uint32_t elsRcvPRLI; 210 uint32_t elsRcvLIRR; 211 uint32_t elsRcvRLS; 212 uint32_t elsRcvRPS; 213 uint32_t elsRcvRPL; 214 uint32_t elsRcvRRQ; 215 uint32_t elsRcvRTV; 216 uint32_t elsRcvECHO; 217 uint32_t elsXmitFLOGI; 218 uint32_t elsXmitFDISC; 219 uint32_t elsXmitPLOGI; 220 uint32_t elsXmitPRLI; 221 uint32_t elsXmitADISC; 222 uint32_t elsXmitLOGO; 223 uint32_t elsXmitSCR; 224 uint32_t elsXmitRNID; 225 uint32_t elsXmitFARP; 226 uint32_t elsXmitFARPR; 227 uint32_t elsXmitACC; 228 uint32_t elsXmitLSRJT; 229 230 uint32_t frameRcvBcast; 231 uint32_t frameRcvMulti; 232 uint32_t strayXmitCmpl; 233 uint32_t frameXmitDelay; 234 uint32_t xriCmdCmpl; 235 uint32_t xriStatErr; 236 uint32_t LinkUp; 237 uint32_t LinkDown; 238 uint32_t LinkMultiEvent; 239 uint32_t NoRcvBuf; 240 uint32_t fcpCmd; 241 uint32_t fcpCmpl; 242 uint32_t fcpRspErr; 243 uint32_t fcpRemoteStop; 244 uint32_t fcpPortRjt; 245 uint32_t fcpPortBusy; 246 uint32_t fcpError; 247 uint32_t fcpLocalErr; 248 }; 249 250 enum sysfs_mbox_state { 251 SMBOX_IDLE, 252 SMBOX_WRITING, 253 SMBOX_READING 254 }; 255 256 struct lpfc_sysfs_mbox { 257 enum sysfs_mbox_state state; 258 size_t offset; 259 struct lpfcMboxq * mbox; 260 }; 261 262 struct lpfc_hba; 263 264 265 enum discovery_state { 266 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 267 LPFC_VPORT_FAILED = 1, /* vport has failed */ 268 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 269 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 270 LPFC_FDISC = 8, /* FDISC sent for vport */ 271 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 272 * configured */ 273 LPFC_NS_REG = 10, /* Register with NameServer */ 274 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 275 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 276 * device authentication / discovery */ 277 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 278 LPFC_VPORT_READY = 32, 279 }; 280 281 enum hba_state { 282 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 283 LPFC_WARM_START = 1, /* HBA state after selective reset */ 284 LPFC_INIT_START = 2, /* Initial state after board reset */ 285 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 286 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 287 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 288 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 289 * CLEAR_LA */ 290 LPFC_HBA_READY = 32, 291 LPFC_HBA_ERROR = -1 292 }; 293 294 struct lpfc_vport { 295 struct lpfc_hba *phba; 296 struct list_head listentry; 297 uint8_t port_type; 298 #define LPFC_PHYSICAL_PORT 1 299 #define LPFC_NPIV_PORT 2 300 #define LPFC_FABRIC_PORT 3 301 enum discovery_state port_state; 302 303 uint16_t vpi; 304 uint16_t vfi; 305 uint8_t vpi_state; 306 #define LPFC_VPI_REGISTERED 0x1 307 308 uint32_t fc_flag; /* FC flags */ 309 /* Several of these flags are HBA centric and should be moved to 310 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 311 */ 312 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 313 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 314 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 315 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 316 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 317 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 318 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 319 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 320 #define FC_FABRIC 0x100 /* We are fabric attached */ 321 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 322 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 323 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 324 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 325 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 326 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 327 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 328 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 329 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 330 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 331 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 332 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 333 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 334 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */ 335 336 uint32_t ct_flags; 337 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 338 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 339 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 340 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 341 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 342 343 struct list_head fc_nodes; 344 345 /* Keep counters for the number of entries in each list. */ 346 uint16_t fc_plogi_cnt; 347 uint16_t fc_adisc_cnt; 348 uint16_t fc_reglogin_cnt; 349 uint16_t fc_prli_cnt; 350 uint16_t fc_unmap_cnt; 351 uint16_t fc_map_cnt; 352 uint16_t fc_npr_cnt; 353 uint16_t fc_unused_cnt; 354 struct serv_parm fc_sparam; /* buffer for our service parameters */ 355 356 uint32_t fc_myDID; /* fibre channel S_ID */ 357 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 358 struct lpfc_name fabric_portname; 359 struct lpfc_name fabric_nodename; 360 361 int32_t stopped; /* HBA has not been restarted since last ERATT */ 362 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 363 364 uint32_t num_disc_nodes; /*in addition to hba_state */ 365 366 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 367 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 368 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 369 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 370 struct lpfc_name fc_nodename; /* fc nodename */ 371 struct lpfc_name fc_portname; /* fc portname */ 372 373 struct lpfc_work_evt disc_timeout_evt; 374 375 struct timer_list fc_disctmo; /* Discovery rescue timer */ 376 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 377 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 378 379 spinlock_t work_port_lock; 380 uint32_t work_port_events; /* Timeout to be handled */ 381 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 382 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 383 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 384 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */ 385 386 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 387 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 388 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 389 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 390 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 391 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 392 393 struct timer_list fc_fdmitmo; 394 struct timer_list els_tmofunc; 395 struct timer_list delayed_disc_tmo; 396 397 int unreg_vpi_cmpl; 398 399 uint8_t load_flag; 400 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 401 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 402 /* Vport Config Parameters */ 403 uint32_t cfg_scan_down; 404 uint32_t cfg_lun_queue_depth; 405 uint32_t cfg_nodev_tmo; 406 uint32_t cfg_devloss_tmo; 407 uint32_t cfg_restrict_login; 408 uint32_t cfg_peer_port_login; 409 uint32_t cfg_fcp_class; 410 uint32_t cfg_use_adisc; 411 uint32_t cfg_fdmi_on; 412 uint32_t cfg_discovery_threads; 413 uint32_t cfg_log_verbose; 414 uint32_t cfg_max_luns; 415 uint32_t cfg_enable_da_id; 416 uint32_t cfg_max_scsicmpl_time; 417 uint32_t cfg_tgt_queue_depth; 418 419 uint32_t dev_loss_tmo_changed; 420 421 struct fc_vport *fc_vport; 422 423 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 424 struct dentry *debug_disc_trc; 425 struct dentry *debug_nodelist; 426 struct dentry *vport_debugfs_root; 427 struct lpfc_debugfs_trc *disc_trc; 428 atomic_t disc_trc_cnt; 429 #endif 430 uint8_t stat_data_enabled; 431 uint8_t stat_data_blocked; 432 struct list_head rcv_buffer_list; 433 unsigned long rcv_buffer_time_stamp; 434 uint32_t vport_flag; 435 #define STATIC_VPORT 1 436 }; 437 438 struct hbq_s { 439 uint16_t entry_count; /* Current number of HBQ slots */ 440 uint16_t buffer_count; /* Current number of buffers posted */ 441 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 442 uint32_t hbqPutIdx; /* HBQ slot to use */ 443 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 444 void *hbq_virt; /* Virtual ptr to this hbq */ 445 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 446 /* Callback for HBQ buffer allocation */ 447 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 448 /* Callback for HBQ buffer free */ 449 void (*hbq_free_buffer) (struct lpfc_hba *, 450 struct hbq_dmabuf *); 451 }; 452 453 #define LPFC_MAX_HBQS 4 454 /* this matches the position in the lpfc_hbq_defs array */ 455 #define LPFC_ELS_HBQ 0 456 #define LPFC_EXTRA_HBQ 1 457 458 enum hba_temp_state { 459 HBA_NORMAL_TEMP, 460 HBA_OVER_TEMP 461 }; 462 463 enum intr_type_t { 464 NONE = 0, 465 INTx, 466 MSI, 467 MSIX, 468 }; 469 470 struct unsol_rcv_ct_ctx { 471 uint32_t ctxt_id; 472 uint32_t SID; 473 uint32_t flags; 474 #define UNSOL_VALID 0x00000001 475 uint16_t oxid; 476 uint16_t rxid; 477 }; 478 479 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/ 480 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */ 481 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */ 482 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */ 483 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */ 484 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */ 485 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */ 486 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G 487 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \ 488 (1 << LPFC_USER_LINK_SPEED_10G) | \ 489 (1 << LPFC_USER_LINK_SPEED_8G) | \ 490 (1 << LPFC_USER_LINK_SPEED_4G) | \ 491 (1 << LPFC_USER_LINK_SPEED_2G) | \ 492 (1 << LPFC_USER_LINK_SPEED_1G) | \ 493 (1 << LPFC_USER_LINK_SPEED_AUTO)) 494 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16" 495 496 enum nemb_type { 497 nemb_mse = 1, 498 nemb_hbd 499 }; 500 501 enum mbox_type { 502 mbox_rd = 1, 503 mbox_wr 504 }; 505 506 enum dma_type { 507 dma_mbox = 1, 508 dma_ebuf 509 }; 510 511 enum sta_type { 512 sta_pre_addr = 1, 513 sta_pos_addr 514 }; 515 516 struct lpfc_mbox_ext_buf_ctx { 517 uint32_t state; 518 #define LPFC_BSG_MBOX_IDLE 0 519 #define LPFC_BSG_MBOX_HOST 1 520 #define LPFC_BSG_MBOX_PORT 2 521 #define LPFC_BSG_MBOX_DONE 3 522 #define LPFC_BSG_MBOX_ABTS 4 523 enum nemb_type nembType; 524 enum mbox_type mboxType; 525 uint32_t numBuf; 526 uint32_t mbxTag; 527 uint32_t seqNum; 528 struct lpfc_dmabuf *mbx_dmabuf; 529 struct list_head ext_dmabuf_list; 530 }; 531 532 struct lpfc_hba { 533 /* SCSI interface function jump table entries */ 534 int (*lpfc_new_scsi_buf) 535 (struct lpfc_vport *, int); 536 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 537 (struct lpfc_hba *, struct lpfc_nodelist *); 538 int (*lpfc_scsi_prep_dma_buf) 539 (struct lpfc_hba *, struct lpfc_scsi_buf *); 540 void (*lpfc_scsi_unprep_dma_buf) 541 (struct lpfc_hba *, struct lpfc_scsi_buf *); 542 void (*lpfc_release_scsi_buf) 543 (struct lpfc_hba *, struct lpfc_scsi_buf *); 544 void (*lpfc_rampdown_queue_depth) 545 (struct lpfc_hba *); 546 void (*lpfc_scsi_prep_cmnd) 547 (struct lpfc_vport *, struct lpfc_scsi_buf *, 548 struct lpfc_nodelist *); 549 /* IOCB interface function jump table entries */ 550 int (*__lpfc_sli_issue_iocb) 551 (struct lpfc_hba *, uint32_t, 552 struct lpfc_iocbq *, uint32_t); 553 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 554 struct lpfc_iocbq *); 555 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 556 557 558 IOCB_t * (*lpfc_get_iocb_from_iocbq) 559 (struct lpfc_iocbq *); 560 void (*lpfc_scsi_cmd_iocb_cmpl) 561 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 562 563 /* MBOX interface function jump table entries */ 564 int (*lpfc_sli_issue_mbox) 565 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 566 /* Slow-path IOCB process function jump table entries */ 567 void (*lpfc_sli_handle_slow_ring_event) 568 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 569 uint32_t mask); 570 /* INIT device interface function jump table entries */ 571 int (*lpfc_sli_hbq_to_firmware) 572 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 573 int (*lpfc_sli_brdrestart) 574 (struct lpfc_hba *); 575 int (*lpfc_sli_brdready) 576 (struct lpfc_hba *, uint32_t); 577 void (*lpfc_handle_eratt) 578 (struct lpfc_hba *); 579 void (*lpfc_stop_port) 580 (struct lpfc_hba *); 581 int (*lpfc_hba_init_link) 582 (struct lpfc_hba *, uint32_t); 583 int (*lpfc_hba_down_link) 584 (struct lpfc_hba *, uint32_t); 585 int (*lpfc_selective_reset) 586 (struct lpfc_hba *); 587 588 /* SLI4 specific HBA data structure */ 589 struct lpfc_sli4_hba sli4_hba; 590 591 struct lpfc_sli sli; 592 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 593 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 594 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 595 #define LPFC_SLI3_HBQ_ENABLED 0x01 596 #define LPFC_SLI3_NPIV_ENABLED 0x02 597 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 598 #define LPFC_SLI3_CRP_ENABLED 0x08 599 #define LPFC_SLI3_BG_ENABLED 0x20 600 #define LPFC_SLI3_DSS_ENABLED 0x40 601 #define LPFC_SLI4_PERFH_ENABLED 0x80 602 #define LPFC_SLI4_PHWQ_ENABLED 0x100 603 uint32_t iocb_cmd_size; 604 uint32_t iocb_rsp_size; 605 606 enum hba_state link_state; 607 uint32_t link_flag; /* link state flags */ 608 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 609 /* This flag is set while issuing */ 610 /* INIT_LINK mailbox command */ 611 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 612 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 613 614 uint32_t hba_flag; /* hba generic flags */ 615 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 616 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 617 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */ 618 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 619 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 620 #define FCP_XRI_ABORT_EVENT 0x20 621 #define ELS_XRI_ABORT_EVENT 0x40 622 #define ASYNC_EVENT 0x80 623 #define LINK_DISABLED 0x100 /* Link disabled by user */ 624 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */ 625 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */ 626 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */ 627 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */ 628 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */ 629 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */ 630 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 631 struct lpfc_dmabuf slim2p; 632 633 MAILBOX_t *mbox; 634 uint32_t *mbox_ext; 635 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx; 636 uint32_t ha_copy; 637 struct _PCB *pcb; 638 struct _IOCB *IOCBs; 639 640 struct lpfc_dmabuf hbqslimp; 641 642 uint16_t pci_cfg_value; 643 644 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 645 646 uint32_t fc_eventTag; /* event tag for link attention */ 647 uint32_t link_events; 648 649 /* These fields used to be binfo */ 650 uint32_t fc_pref_DID; /* preferred D_ID */ 651 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 652 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */ 653 uint32_t fc_edtov; /* E_D_TOV timer value */ 654 uint32_t fc_arbtov; /* ARB_TOV timer value */ 655 uint32_t fc_ratov; /* R_A_TOV timer value */ 656 uint32_t fc_rttov; /* R_T_TOV timer value */ 657 uint32_t fc_altov; /* AL_TOV timer value */ 658 uint32_t fc_crtov; /* C_R_TOV timer value */ 659 uint32_t fc_citov; /* C_I_TOV timer value */ 660 661 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 662 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 663 664 uint32_t lmt; 665 666 uint32_t fc_topology; /* link topology, from LINK INIT */ 667 668 struct lpfc_stats fc_stat; 669 670 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 671 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 672 673 uint8_t wwnn[8]; 674 uint8_t wwpn[8]; 675 uint32_t RandomData[7]; 676 677 /* HBA Config Parameters */ 678 uint32_t cfg_ack0; 679 uint32_t cfg_enable_npiv; 680 uint32_t cfg_enable_rrq; 681 uint32_t cfg_topology; 682 uint32_t cfg_link_speed; 683 #define LPFC_FCF_FOV 1 /* Fast fcf failover */ 684 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */ 685 uint32_t cfg_fcf_failover_policy; 686 uint32_t cfg_cr_delay; 687 uint32_t cfg_cr_count; 688 uint32_t cfg_multi_ring_support; 689 uint32_t cfg_multi_ring_rctl; 690 uint32_t cfg_multi_ring_type; 691 uint32_t cfg_poll; 692 uint32_t cfg_poll_tmo; 693 uint32_t cfg_use_msi; 694 uint32_t cfg_fcp_imax; 695 uint32_t cfg_fcp_wq_count; 696 uint32_t cfg_fcp_eq_count; 697 uint32_t cfg_sg_seg_cnt; 698 uint32_t cfg_prot_sg_seg_cnt; 699 uint32_t cfg_sg_dma_buf_size; 700 uint64_t cfg_soft_wwnn; 701 uint64_t cfg_soft_wwpn; 702 uint32_t cfg_hba_queue_depth; 703 uint32_t cfg_enable_hba_reset; 704 uint32_t cfg_enable_hba_heartbeat; 705 uint32_t cfg_enable_bg; 706 uint32_t cfg_hostmem_hgp; 707 uint32_t cfg_log_verbose; 708 uint32_t cfg_aer_support; 709 uint32_t cfg_sriov_nr_virtfn; 710 uint32_t cfg_iocb_cnt; 711 uint32_t cfg_suppress_link_up; 712 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 713 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 714 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 715 uint32_t cfg_enable_dss; 716 lpfc_vpd_t vpd; /* vital product data */ 717 718 struct pci_dev *pcidev; 719 struct list_head work_list; 720 uint32_t work_ha; /* Host Attention Bits for WT */ 721 uint32_t work_ha_mask; /* HA Bits owned by WT */ 722 uint32_t work_hs; /* HS stored in case of ERRAT */ 723 uint32_t work_status[2]; /* Extra status from SLIM */ 724 725 wait_queue_head_t work_waitq; 726 struct task_struct *worker_thread; 727 unsigned long data_flags; 728 729 uint32_t hbq_in_use; /* HBQs in use flag */ 730 struct list_head rb_pend_list; /* Received buffers to be processed */ 731 uint32_t hbq_count; /* Count of configured HBQs */ 732 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 733 734 uint32_t fcp_qidx; /* next work queue to post work to */ 735 736 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 737 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 738 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 739 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 740 PCI BAR0 */ 741 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 742 PCI BAR2 */ 743 744 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 745 void __iomem *HAregaddr; /* virtual address for host attn reg */ 746 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 747 void __iomem *HSregaddr; /* virtual address for host status 748 reg */ 749 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 750 751 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 752 struct lpfc_pgp *port_gp; 753 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 754 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 755 756 int brd_no; /* FC board number */ 757 char SerialNumber[32]; /* adapter Serial Number */ 758 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 759 char ModelDesc[256]; /* Model Description */ 760 char ModelName[80]; /* Model Name */ 761 char ProgramType[256]; /* Program Type */ 762 char Port[20]; /* Port No */ 763 uint8_t vpd_flag; /* VPD data flag */ 764 765 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 766 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 767 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 768 #define VPD_PORT 0x8 /* valid vpd port data */ 769 #define VPD_MASK 0xf /* mask for any vpd data */ 770 771 uint8_t soft_wwn_enable; 772 773 struct timer_list fcp_poll_timer; 774 struct timer_list eratt_poll; 775 776 /* 777 * stat counters 778 */ 779 uint64_t fc4InputRequests; 780 uint64_t fc4OutputRequests; 781 uint64_t fc4ControlRequests; 782 uint64_t bg_guard_err_cnt; 783 uint64_t bg_apptag_err_cnt; 784 uint64_t bg_reftag_err_cnt; 785 786 struct lpfc_sysfs_mbox sysfs_mbox; 787 788 /* fastpath list. */ 789 spinlock_t scsi_buf_list_lock; 790 struct list_head lpfc_scsi_buf_list; 791 uint32_t total_scsi_bufs; 792 struct list_head lpfc_iocb_list; 793 uint32_t total_iocbq_bufs; 794 struct list_head active_rrq_list; 795 spinlock_t hbalock; 796 797 /* pci_mem_pools */ 798 struct pci_pool *lpfc_scsi_dma_buf_pool; 799 struct pci_pool *lpfc_mbuf_pool; 800 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 801 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 802 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 803 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 804 805 mempool_t *mbox_mem_pool; 806 mempool_t *nlp_mem_pool; 807 mempool_t *rrq_pool; 808 809 struct fc_host_statistics link_stats; 810 enum intr_type_t intr_type; 811 uint32_t intr_mode; 812 #define LPFC_INTR_ERROR 0xFFFFFFFF 813 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 814 815 struct list_head port_list; 816 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 817 uint16_t max_vpi; /* Maximum virtual nports */ 818 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 819 uint16_t max_vports; /* 820 * For IOV HBAs max_vpi can change 821 * after a reset. max_vports is max 822 * number of vports present. This can 823 * be greater than max_vpi. 824 */ 825 uint16_t vpi_base; 826 uint16_t vfi_base; 827 unsigned long *vpi_bmask; /* vpi allocation table */ 828 uint16_t *vpi_ids; 829 uint16_t vpi_count; 830 struct list_head lpfc_vpi_blk_list; 831 832 /* Data structure used by fabric iocb scheduler */ 833 struct list_head fabric_iocb_list; 834 atomic_t fabric_iocb_count; 835 struct timer_list fabric_block_timer; 836 unsigned long bit_flags; 837 #define FABRIC_COMANDS_BLOCKED 0 838 atomic_t num_rsrc_err; 839 atomic_t num_cmd_success; 840 unsigned long last_rsrc_error_time; 841 unsigned long last_ramp_down_time; 842 unsigned long last_ramp_up_time; 843 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 844 struct dentry *hba_debugfs_root; 845 atomic_t debugfs_vport_count; 846 struct dentry *debug_hbqinfo; 847 struct dentry *debug_dumpHostSlim; 848 struct dentry *debug_dumpHBASlim; 849 struct dentry *debug_dumpData; /* BlockGuard BPL*/ 850 struct dentry *debug_dumpDif; /* BlockGuard BPL*/ 851 struct dentry *debug_slow_ring_trc; 852 struct lpfc_debugfs_trc *slow_ring_trc; 853 atomic_t slow_ring_trc_cnt; 854 /* iDiag debugfs sub-directory */ 855 struct dentry *idiag_root; 856 struct dentry *idiag_pci_cfg; 857 struct dentry *idiag_bar_acc; 858 struct dentry *idiag_que_info; 859 struct dentry *idiag_que_acc; 860 struct dentry *idiag_drb_acc; 861 struct dentry *idiag_ctl_acc; 862 struct dentry *idiag_mbx_acc; 863 struct dentry *idiag_ext_acc; 864 #endif 865 866 /* Used for deferred freeing of ELS data buffers */ 867 struct list_head elsbuf; 868 int elsbuf_cnt; 869 int elsbuf_prev_cnt; 870 871 uint8_t temp_sensor_support; 872 /* Fields used for heart beat. */ 873 unsigned long last_completion_time; 874 unsigned long skipped_hb; 875 struct timer_list hb_tmofunc; 876 uint8_t hb_outstanding; 877 struct timer_list rrq_tmr; 878 enum hba_temp_state over_temp_state; 879 /* ndlp reference management */ 880 spinlock_t ndlp_lock; 881 /* 882 * Following bit will be set for all buffer tags which are not 883 * associated with any HBQ. 884 */ 885 #define QUE_BUFTAG_BIT (1<<31) 886 uint32_t buffer_tag_count; 887 int wait_4_mlo_maint_flg; 888 wait_queue_head_t wait_4_mlo_m_q; 889 /* data structure used for latency data collection */ 890 #define LPFC_NO_BUCKET 0 891 #define LPFC_LINEAR_BUCKET 1 892 #define LPFC_POWER2_BUCKET 2 893 uint8_t bucket_type; 894 uint32_t bucket_base; 895 uint32_t bucket_step; 896 897 /* Maximum number of events that can be outstanding at any time*/ 898 #define LPFC_MAX_EVT_COUNT 512 899 atomic_t fast_event_count; 900 uint32_t fcoe_eventtag; 901 uint32_t fcoe_eventtag_at_fcf_scan; 902 struct lpfc_fcf fcf; 903 uint8_t fc_map[3]; 904 uint8_t valid_vlan; 905 uint16_t vlan_id; 906 struct list_head fcf_conn_rec_list; 907 908 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 909 struct list_head ct_ev_waiters; 910 struct unsol_rcv_ct_ctx ct_ctx[64]; 911 uint32_t ctx_idx; 912 913 uint8_t menlo_flag; /* menlo generic flags */ 914 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 915 uint32_t iocb_cnt; 916 uint32_t iocb_max; 917 atomic_t sdev_cnt; 918 uint8_t fips_spec_rev; 919 uint8_t fips_level; 920 }; 921 922 static inline struct Scsi_Host * 923 lpfc_shost_from_vport(struct lpfc_vport *vport) 924 { 925 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 926 } 927 928 static inline void 929 lpfc_set_loopback_flag(struct lpfc_hba *phba) 930 { 931 if (phba->cfg_topology == FLAGS_LOCAL_LB) 932 phba->link_flag |= LS_LOOPBACK_MODE; 933 else 934 phba->link_flag &= ~LS_LOOPBACK_MODE; 935 } 936 937 static inline int 938 lpfc_is_link_up(struct lpfc_hba *phba) 939 { 940 return phba->link_state == LPFC_LINK_UP || 941 phba->link_state == LPFC_CLEAR_LA || 942 phba->link_state == LPFC_HBA_READY; 943 } 944 945 static inline void 946 lpfc_worker_wake_up(struct lpfc_hba *phba) 947 { 948 /* Set the lpfc data pending flag */ 949 set_bit(LPFC_DATA_READY, &phba->data_flags); 950 951 /* Wake up worker thread */ 952 wake_up(&phba->work_waitq); 953 return; 954 } 955 956 static inline int 957 lpfc_readl(void __iomem *addr, uint32_t *data) 958 { 959 uint32_t temp; 960 temp = readl(addr); 961 if (temp == 0xffffffff) 962 return -EIO; 963 *data = temp; 964 return 0; 965 } 966 967 static inline int 968 lpfc_sli_read_hs(struct lpfc_hba *phba) 969 { 970 /* 971 * There was a link/board error. Read the status register to retrieve 972 * the error event and process it. 973 */ 974 phba->sli.slistat.err_attn_event++; 975 976 /* Save status info and check for unplug error */ 977 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || 978 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || 979 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { 980 return -EIO; 981 } 982 983 /* Clear chip Host Attention error bit */ 984 writel(HA_ERATT, phba->HAregaddr); 985 readl(phba->HAregaddr); /* flush */ 986 phba->pport->stopped = 1; 987 988 return 0; 989 } 990