1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 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 ELX_MODEL_NAME_SIZE 80 31 32 #define LPFC_PCI_DEV_LP 0x1 33 #define LPFC_PCI_DEV_OC 0x2 34 35 #define LPFC_SLI_REV2 2 36 #define LPFC_SLI_REV3 3 37 #define LPFC_SLI_REV4 4 38 39 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */ 40 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 41 requests */ 42 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 43 the NameServer before giving up. */ 44 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 45 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 46 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi 47 cmnd for menlo needs nearly twice as for firmware 48 downloads using bsg */ 49 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ 50 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ 51 #define LPFC_MAX_SGE_SIZE 0x80000000 /* Maximum data allowed in a SGE */ 52 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ 53 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 54 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 55 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 56 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt 57 queue depth change in millisecs */ 58 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ 59 #define LPFC_MIN_TGT_QDEPTH 10 60 #define LPFC_MAX_TGT_QDEPTH 0xFFFF 61 62 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data 63 collection. */ 64 /* 65 * Following time intervals are used of adjusting SCSI device 66 * queue depths when there are driver resource error or Firmware 67 * resource error. 68 */ 69 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */ 70 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */ 71 72 /* Number of exchanges reserved for discovery to complete */ 73 #define LPFC_DISC_IOCB_BUFF_COUNT 20 74 75 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 76 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 77 78 #define LPFC_LOOK_AHEAD_OFF 0 /* Look ahead logic is turned off */ 79 80 /* Error Attention event polling interval */ 81 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ 82 83 /* Define macros for 64 bit support */ 84 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 85 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 86 #define getPaddr(high, low) ((dma_addr_t)( \ 87 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 88 /* Provide maximum configuration definitions. */ 89 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 90 #define FC_MAX_ADPTMSG 64 91 92 #define MAX_HBAEVT 32 93 94 /* Number of MSI-X vectors the driver uses */ 95 #define LPFC_MSIX_VECTORS 2 96 97 /* lpfc wait event data ready flag */ 98 #define LPFC_DATA_READY (1<<0) 99 100 /* queue dump line buffer size */ 101 #define LPFC_LBUF_SZ 128 102 103 /* mailbox system shutdown options */ 104 #define LPFC_MBX_NO_WAIT 0 105 #define LPFC_MBX_WAIT 1 106 107 enum lpfc_polling_flags { 108 ENABLE_FCP_RING_POLLING = 0x1, 109 DISABLE_FCP_RING_INT = 0x2 110 }; 111 112 /* Provide DMA memory definitions the driver uses per port instance. */ 113 struct lpfc_dmabuf { 114 struct list_head list; 115 void *virt; /* virtual address ptr */ 116 dma_addr_t phys; /* mapped address */ 117 uint32_t buffer_tag; /* used for tagged queue ring */ 118 }; 119 120 struct lpfc_dma_pool { 121 struct lpfc_dmabuf *elements; 122 uint32_t max_count; 123 uint32_t current_count; 124 }; 125 126 struct hbq_dmabuf { 127 struct lpfc_dmabuf hbuf; 128 struct lpfc_dmabuf dbuf; 129 uint32_t size; 130 uint32_t tag; 131 struct lpfc_cq_event cq_event; 132 unsigned long time_stamp; 133 }; 134 135 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 136 #define MEM_PRI 0x100 137 138 139 /****************************************************************************/ 140 /* Device VPD save area */ 141 /****************************************************************************/ 142 typedef struct lpfc_vpd { 143 uint32_t status; /* vpd status value */ 144 uint32_t length; /* number of bytes actually returned */ 145 struct { 146 uint32_t rsvd1; /* Revision numbers */ 147 uint32_t biuRev; 148 uint32_t smRev; 149 uint32_t smFwRev; 150 uint32_t endecRev; 151 uint16_t rBit; 152 uint8_t fcphHigh; 153 uint8_t fcphLow; 154 uint8_t feaLevelHigh; 155 uint8_t feaLevelLow; 156 uint32_t postKernRev; 157 uint32_t opFwRev; 158 uint8_t opFwName[16]; 159 uint32_t sli1FwRev; 160 uint8_t sli1FwName[16]; 161 uint32_t sli2FwRev; 162 uint8_t sli2FwName[16]; 163 } rev; 164 struct { 165 #ifdef __BIG_ENDIAN_BITFIELD 166 uint32_t rsvd3 :19; /* Reserved */ 167 uint32_t cdss : 1; /* Configure Data Security SLI */ 168 uint32_t rsvd2 : 3; /* Reserved */ 169 uint32_t cbg : 1; /* Configure BlockGuard */ 170 uint32_t cmv : 1; /* Configure Max VPIs */ 171 uint32_t ccrp : 1; /* Config Command Ring Polling */ 172 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 173 uint32_t chbs : 1; /* Cofigure Host Backing store */ 174 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 175 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 176 uint32_t cmx : 1; /* Configure Max XRIs */ 177 uint32_t cmr : 1; /* Configure Max RPIs */ 178 #else /* __LITTLE_ENDIAN */ 179 uint32_t cmr : 1; /* Configure Max RPIs */ 180 uint32_t cmx : 1; /* Configure Max XRIs */ 181 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 182 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 183 uint32_t chbs : 1; /* Cofigure Host Backing store */ 184 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 185 uint32_t ccrp : 1; /* Config Command Ring Polling */ 186 uint32_t cmv : 1; /* Configure Max VPIs */ 187 uint32_t cbg : 1; /* Configure BlockGuard */ 188 uint32_t rsvd2 : 3; /* Reserved */ 189 uint32_t cdss : 1; /* Configure Data Security SLI */ 190 uint32_t rsvd3 :19; /* Reserved */ 191 #endif 192 } sli3Feat; 193 } lpfc_vpd_t; 194 195 struct lpfc_scsi_buf; 196 197 198 /* 199 * lpfc stat counters 200 */ 201 struct lpfc_stats { 202 /* Statistics for ELS commands */ 203 uint32_t elsLogiCol; 204 uint32_t elsRetryExceeded; 205 uint32_t elsXmitRetry; 206 uint32_t elsDelayRetry; 207 uint32_t elsRcvDrop; 208 uint32_t elsRcvFrame; 209 uint32_t elsRcvRSCN; 210 uint32_t elsRcvRNID; 211 uint32_t elsRcvFARP; 212 uint32_t elsRcvFARPR; 213 uint32_t elsRcvFLOGI; 214 uint32_t elsRcvPLOGI; 215 uint32_t elsRcvADISC; 216 uint32_t elsRcvPDISC; 217 uint32_t elsRcvFAN; 218 uint32_t elsRcvLOGO; 219 uint32_t elsRcvPRLO; 220 uint32_t elsRcvPRLI; 221 uint32_t elsRcvLIRR; 222 uint32_t elsRcvRLS; 223 uint32_t elsRcvRPS; 224 uint32_t elsRcvRPL; 225 uint32_t elsRcvRRQ; 226 uint32_t elsRcvRTV; 227 uint32_t elsRcvECHO; 228 uint32_t elsXmitFLOGI; 229 uint32_t elsXmitFDISC; 230 uint32_t elsXmitPLOGI; 231 uint32_t elsXmitPRLI; 232 uint32_t elsXmitADISC; 233 uint32_t elsXmitLOGO; 234 uint32_t elsXmitSCR; 235 uint32_t elsXmitRNID; 236 uint32_t elsXmitFARP; 237 uint32_t elsXmitFARPR; 238 uint32_t elsXmitACC; 239 uint32_t elsXmitLSRJT; 240 241 uint32_t frameRcvBcast; 242 uint32_t frameRcvMulti; 243 uint32_t strayXmitCmpl; 244 uint32_t frameXmitDelay; 245 uint32_t xriCmdCmpl; 246 uint32_t xriStatErr; 247 uint32_t LinkUp; 248 uint32_t LinkDown; 249 uint32_t LinkMultiEvent; 250 uint32_t NoRcvBuf; 251 uint32_t fcpCmd; 252 uint32_t fcpCmpl; 253 uint32_t fcpRspErr; 254 uint32_t fcpRemoteStop; 255 uint32_t fcpPortRjt; 256 uint32_t fcpPortBusy; 257 uint32_t fcpError; 258 uint32_t fcpLocalErr; 259 }; 260 261 struct lpfc_hba; 262 263 264 enum discovery_state { 265 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 266 LPFC_VPORT_FAILED = 1, /* vport has failed */ 267 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 268 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 269 LPFC_FDISC = 8, /* FDISC sent for vport */ 270 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 271 * configured */ 272 LPFC_NS_REG = 10, /* Register with NameServer */ 273 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 274 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 275 * device authentication / discovery */ 276 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 277 LPFC_VPORT_READY = 32, 278 }; 279 280 enum hba_state { 281 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 282 LPFC_WARM_START = 1, /* HBA state after selective reset */ 283 LPFC_INIT_START = 2, /* Initial state after board reset */ 284 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 285 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 286 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 287 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 288 * CLEAR_LA */ 289 LPFC_HBA_READY = 32, 290 LPFC_HBA_ERROR = -1 291 }; 292 293 struct lpfc_vport { 294 struct lpfc_hba *phba; 295 struct list_head listentry; 296 uint8_t port_type; 297 #define LPFC_PHYSICAL_PORT 1 298 #define LPFC_NPIV_PORT 2 299 #define LPFC_FABRIC_PORT 3 300 enum discovery_state port_state; 301 302 uint16_t vpi; 303 uint16_t vfi; 304 uint8_t vpi_state; 305 #define LPFC_VPI_REGISTERED 0x1 306 307 uint32_t fc_flag; /* FC flags */ 308 /* Several of these flags are HBA centric and should be moved to 309 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 310 */ 311 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 312 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 313 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 314 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 315 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 316 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 317 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 318 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 319 #define FC_FABRIC 0x100 /* We are fabric attached */ 320 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 321 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 322 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 323 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 324 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 325 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 326 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 327 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 328 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 329 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 330 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 331 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 332 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 333 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */ 334 335 uint32_t ct_flags; 336 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 337 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 338 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 339 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 340 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 341 342 struct list_head fc_nodes; 343 344 /* Keep counters for the number of entries in each list. */ 345 uint16_t fc_plogi_cnt; 346 uint16_t fc_adisc_cnt; 347 uint16_t fc_reglogin_cnt; 348 uint16_t fc_prli_cnt; 349 uint16_t fc_unmap_cnt; 350 uint16_t fc_map_cnt; 351 uint16_t fc_npr_cnt; 352 uint16_t fc_unused_cnt; 353 struct serv_parm fc_sparam; /* buffer for our service parameters */ 354 355 uint32_t fc_myDID; /* fibre channel S_ID */ 356 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 357 struct lpfc_name fabric_portname; 358 struct lpfc_name fabric_nodename; 359 360 int32_t stopped; /* HBA has not been restarted since last ERATT */ 361 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 362 363 uint32_t num_disc_nodes; /*in addition to hba_state */ 364 365 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 366 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 367 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 368 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 369 struct lpfc_name fc_nodename; /* fc nodename */ 370 struct lpfc_name fc_portname; /* fc portname */ 371 372 struct lpfc_work_evt disc_timeout_evt; 373 374 struct timer_list fc_disctmo; /* Discovery rescue timer */ 375 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 376 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 377 378 spinlock_t work_port_lock; 379 uint32_t work_port_events; /* Timeout to be handled */ 380 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 381 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 382 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 383 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */ 384 385 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 386 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 387 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 388 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 389 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 390 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 391 392 struct timer_list fc_fdmitmo; 393 struct timer_list els_tmofunc; 394 struct timer_list delayed_disc_tmo; 395 396 int unreg_vpi_cmpl; 397 398 uint8_t load_flag; 399 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 400 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 401 /* Vport Config Parameters */ 402 uint32_t cfg_scan_down; 403 uint32_t cfg_lun_queue_depth; 404 uint32_t cfg_nodev_tmo; 405 uint32_t cfg_devloss_tmo; 406 uint32_t cfg_restrict_login; 407 uint32_t cfg_peer_port_login; 408 uint32_t cfg_fcp_class; 409 uint32_t cfg_use_adisc; 410 uint32_t cfg_fdmi_on; 411 uint32_t cfg_discovery_threads; 412 uint32_t cfg_log_verbose; 413 uint32_t cfg_max_luns; 414 uint32_t cfg_enable_da_id; 415 uint32_t cfg_max_scsicmpl_time; 416 uint32_t cfg_tgt_queue_depth; 417 418 uint32_t dev_loss_tmo_changed; 419 420 struct fc_vport *fc_vport; 421 422 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 423 struct dentry *debug_disc_trc; 424 struct dentry *debug_nodelist; 425 struct dentry *vport_debugfs_root; 426 struct lpfc_debugfs_trc *disc_trc; 427 atomic_t disc_trc_cnt; 428 #endif 429 uint8_t stat_data_enabled; 430 uint8_t stat_data_blocked; 431 struct list_head rcv_buffer_list; 432 unsigned long rcv_buffer_time_stamp; 433 uint32_t vport_flag; 434 #define STATIC_VPORT 1 435 }; 436 437 struct hbq_s { 438 uint16_t entry_count; /* Current number of HBQ slots */ 439 uint16_t buffer_count; /* Current number of buffers posted */ 440 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 441 uint32_t hbqPutIdx; /* HBQ slot to use */ 442 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 443 void *hbq_virt; /* Virtual ptr to this hbq */ 444 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 445 /* Callback for HBQ buffer allocation */ 446 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 447 /* Callback for HBQ buffer free */ 448 void (*hbq_free_buffer) (struct lpfc_hba *, 449 struct hbq_dmabuf *); 450 }; 451 452 #define LPFC_MAX_HBQS 4 453 /* this matches the position in the lpfc_hbq_defs array */ 454 #define LPFC_ELS_HBQ 0 455 #define LPFC_EXTRA_HBQ 1 456 457 enum hba_temp_state { 458 HBA_NORMAL_TEMP, 459 HBA_OVER_TEMP 460 }; 461 462 enum intr_type_t { 463 NONE = 0, 464 INTx, 465 MSI, 466 MSIX, 467 }; 468 469 struct unsol_rcv_ct_ctx { 470 uint32_t ctxt_id; 471 uint32_t SID; 472 uint32_t flags; 473 #define UNSOL_VALID 0x00000001 474 uint16_t oxid; 475 uint16_t rxid; 476 }; 477 478 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/ 479 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */ 480 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */ 481 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */ 482 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */ 483 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */ 484 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */ 485 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G 486 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \ 487 (1 << LPFC_USER_LINK_SPEED_10G) | \ 488 (1 << LPFC_USER_LINK_SPEED_8G) | \ 489 (1 << LPFC_USER_LINK_SPEED_4G) | \ 490 (1 << LPFC_USER_LINK_SPEED_2G) | \ 491 (1 << LPFC_USER_LINK_SPEED_1G) | \ 492 (1 << LPFC_USER_LINK_SPEED_AUTO)) 493 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16" 494 495 enum nemb_type { 496 nemb_mse = 1, 497 nemb_hbd 498 }; 499 500 enum mbox_type { 501 mbox_rd = 1, 502 mbox_wr 503 }; 504 505 enum dma_type { 506 dma_mbox = 1, 507 dma_ebuf 508 }; 509 510 enum sta_type { 511 sta_pre_addr = 1, 512 sta_pos_addr 513 }; 514 515 struct lpfc_mbox_ext_buf_ctx { 516 uint32_t state; 517 #define LPFC_BSG_MBOX_IDLE 0 518 #define LPFC_BSG_MBOX_HOST 1 519 #define LPFC_BSG_MBOX_PORT 2 520 #define LPFC_BSG_MBOX_DONE 3 521 #define LPFC_BSG_MBOX_ABTS 4 522 enum nemb_type nembType; 523 enum mbox_type mboxType; 524 uint32_t numBuf; 525 uint32_t mbxTag; 526 uint32_t seqNum; 527 struct lpfc_dmabuf *mbx_dmabuf; 528 struct list_head ext_dmabuf_list; 529 }; 530 531 struct lpfc_hba { 532 /* SCSI interface function jump table entries */ 533 int (*lpfc_new_scsi_buf) 534 (struct lpfc_vport *, int); 535 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 536 (struct lpfc_hba *, struct lpfc_nodelist *); 537 int (*lpfc_scsi_prep_dma_buf) 538 (struct lpfc_hba *, struct lpfc_scsi_buf *); 539 void (*lpfc_scsi_unprep_dma_buf) 540 (struct lpfc_hba *, struct lpfc_scsi_buf *); 541 void (*lpfc_release_scsi_buf) 542 (struct lpfc_hba *, struct lpfc_scsi_buf *); 543 void (*lpfc_rampdown_queue_depth) 544 (struct lpfc_hba *); 545 void (*lpfc_scsi_prep_cmnd) 546 (struct lpfc_vport *, struct lpfc_scsi_buf *, 547 struct lpfc_nodelist *); 548 549 /* 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 IOCB_t * (*lpfc_get_iocb_from_iocbq) 557 (struct lpfc_iocbq *); 558 void (*lpfc_scsi_cmd_iocb_cmpl) 559 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 560 561 /* MBOX interface function jump table entries */ 562 int (*lpfc_sli_issue_mbox) 563 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 564 565 /* Slow-path IOCB process function jump table entries */ 566 void (*lpfc_sli_handle_slow_ring_event) 567 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 568 uint32_t mask); 569 570 /* 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 int (*lpfc_bg_scsi_prep_dma_buf) 589 (struct lpfc_hba *, struct lpfc_scsi_buf *); 590 /* Add new entries here */ 591 592 /* SLI4 specific HBA data structure */ 593 struct lpfc_sli4_hba sli4_hba; 594 595 struct lpfc_sli sli; 596 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 597 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 598 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 599 #define LPFC_SLI3_HBQ_ENABLED 0x01 600 #define LPFC_SLI3_NPIV_ENABLED 0x02 601 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 602 #define LPFC_SLI3_CRP_ENABLED 0x08 603 #define LPFC_SLI3_BG_ENABLED 0x20 604 #define LPFC_SLI3_DSS_ENABLED 0x40 605 #define LPFC_SLI4_PERFH_ENABLED 0x80 606 #define LPFC_SLI4_PHWQ_ENABLED 0x100 607 uint32_t iocb_cmd_size; 608 uint32_t iocb_rsp_size; 609 610 enum hba_state link_state; 611 uint32_t link_flag; /* link state flags */ 612 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 613 /* This flag is set while issuing */ 614 /* INIT_LINK mailbox command */ 615 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 616 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 617 618 uint32_t hba_flag; /* hba generic flags */ 619 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 620 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 621 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */ 622 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 623 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 624 #define FCP_XRI_ABORT_EVENT 0x20 625 #define ELS_XRI_ABORT_EVENT 0x40 626 #define ASYNC_EVENT 0x80 627 #define LINK_DISABLED 0x100 /* Link disabled by user */ 628 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */ 629 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */ 630 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */ 631 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */ 632 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */ 633 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */ 634 #define HBA_FCP_IOQ_FLUSH 0x8000 /* FCP I/O queues being flushed */ 635 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 636 struct lpfc_dmabuf slim2p; 637 638 MAILBOX_t *mbox; 639 uint32_t *mbox_ext; 640 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx; 641 uint32_t ha_copy; 642 struct _PCB *pcb; 643 struct _IOCB *IOCBs; 644 645 struct lpfc_dmabuf hbqslimp; 646 647 uint16_t pci_cfg_value; 648 649 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 650 651 uint32_t fc_eventTag; /* event tag for link attention */ 652 uint32_t link_events; 653 654 /* These fields used to be binfo */ 655 uint32_t fc_pref_DID; /* preferred D_ID */ 656 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 657 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */ 658 uint32_t fc_edtov; /* E_D_TOV timer value */ 659 uint32_t fc_arbtov; /* ARB_TOV timer value */ 660 uint32_t fc_ratov; /* R_A_TOV timer value */ 661 uint32_t fc_rttov; /* R_T_TOV timer value */ 662 uint32_t fc_altov; /* AL_TOV timer value */ 663 uint32_t fc_crtov; /* C_R_TOV timer value */ 664 uint32_t fc_citov; /* C_I_TOV timer value */ 665 666 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 667 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 668 669 uint32_t lmt; 670 671 uint32_t fc_topology; /* link topology, from LINK INIT */ 672 673 struct lpfc_stats fc_stat; 674 675 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 676 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 677 678 uint8_t wwnn[8]; 679 uint8_t wwpn[8]; 680 uint32_t RandomData[7]; 681 682 /* HBA Config Parameters */ 683 uint32_t cfg_ack0; 684 uint32_t cfg_enable_npiv; 685 uint32_t cfg_enable_rrq; 686 uint32_t cfg_topology; 687 uint32_t cfg_link_speed; 688 #define LPFC_FCF_FOV 1 /* Fast fcf failover */ 689 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */ 690 uint32_t cfg_fcf_failover_policy; 691 uint32_t cfg_fcp_io_sched; 692 uint32_t cfg_fcp2_no_tgt_reset; 693 uint32_t cfg_cr_delay; 694 uint32_t cfg_cr_count; 695 uint32_t cfg_multi_ring_support; 696 uint32_t cfg_multi_ring_rctl; 697 uint32_t cfg_multi_ring_type; 698 uint32_t cfg_poll; 699 uint32_t cfg_poll_tmo; 700 uint32_t cfg_use_msi; 701 uint32_t cfg_fcp_imax; 702 uint32_t cfg_fcp_wq_count; 703 uint32_t cfg_fcp_eq_count; 704 uint32_t cfg_fcp_io_channel; 705 uint32_t cfg_sg_seg_cnt; 706 uint32_t cfg_prot_sg_seg_cnt; 707 uint32_t cfg_sg_dma_buf_size; 708 uint64_t cfg_soft_wwnn; 709 uint64_t cfg_soft_wwpn; 710 uint32_t cfg_hba_queue_depth; 711 uint32_t cfg_enable_hba_reset; 712 uint32_t cfg_enable_hba_heartbeat; 713 uint32_t cfg_enable_bg; 714 uint32_t cfg_hostmem_hgp; 715 uint32_t cfg_log_verbose; 716 uint32_t cfg_aer_support; 717 uint32_t cfg_sriov_nr_virtfn; 718 uint32_t cfg_request_firmware_upgrade; 719 uint32_t cfg_iocb_cnt; 720 uint32_t cfg_suppress_link_up; 721 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 722 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 723 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 724 uint32_t cfg_enable_dss; 725 lpfc_vpd_t vpd; /* vital product data */ 726 727 struct pci_dev *pcidev; 728 struct list_head work_list; 729 uint32_t work_ha; /* Host Attention Bits for WT */ 730 uint32_t work_ha_mask; /* HA Bits owned by WT */ 731 uint32_t work_hs; /* HS stored in case of ERRAT */ 732 uint32_t work_status[2]; /* Extra status from SLIM */ 733 734 wait_queue_head_t work_waitq; 735 struct task_struct *worker_thread; 736 unsigned long data_flags; 737 738 uint32_t hbq_in_use; /* HBQs in use flag */ 739 struct list_head rb_pend_list; /* Received buffers to be processed */ 740 uint32_t hbq_count; /* Count of configured HBQs */ 741 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 742 743 atomic_t fcp_qidx; /* next work queue to post work to */ 744 745 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 746 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 747 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 748 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 749 PCI BAR0 */ 750 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 751 PCI BAR2 */ 752 753 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 754 void __iomem *HAregaddr; /* virtual address for host attn reg */ 755 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 756 void __iomem *HSregaddr; /* virtual address for host status 757 reg */ 758 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 759 760 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 761 struct lpfc_pgp *port_gp; 762 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 763 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 764 765 int brd_no; /* FC board number */ 766 char SerialNumber[32]; /* adapter Serial Number */ 767 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 768 char ModelDesc[256]; /* Model Description */ 769 char ModelName[80]; /* Model Name */ 770 char ProgramType[256]; /* Program Type */ 771 char Port[20]; /* Port No */ 772 uint8_t vpd_flag; /* VPD data flag */ 773 774 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 775 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 776 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 777 #define VPD_PORT 0x8 /* valid vpd port data */ 778 #define VPD_MASK 0xf /* mask for any vpd data */ 779 780 uint8_t soft_wwn_enable; 781 782 struct timer_list fcp_poll_timer; 783 struct timer_list eratt_poll; 784 785 /* 786 * stat counters 787 */ 788 uint64_t fc4InputRequests; 789 uint64_t fc4OutputRequests; 790 uint64_t fc4ControlRequests; 791 uint64_t bg_guard_err_cnt; 792 uint64_t bg_apptag_err_cnt; 793 uint64_t bg_reftag_err_cnt; 794 795 /* fastpath list. */ 796 spinlock_t scsi_buf_list_lock; 797 struct list_head lpfc_scsi_buf_list; 798 uint32_t total_scsi_bufs; 799 struct list_head lpfc_iocb_list; 800 uint32_t total_iocbq_bufs; 801 struct list_head active_rrq_list; 802 spinlock_t hbalock; 803 804 /* pci_mem_pools */ 805 struct pci_pool *lpfc_scsi_dma_buf_pool; 806 struct pci_pool *lpfc_mbuf_pool; 807 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 808 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 809 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 810 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 811 812 mempool_t *mbox_mem_pool; 813 mempool_t *nlp_mem_pool; 814 mempool_t *rrq_pool; 815 816 struct fc_host_statistics link_stats; 817 enum intr_type_t intr_type; 818 uint32_t intr_mode; 819 #define LPFC_INTR_ERROR 0xFFFFFFFF 820 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 821 822 struct list_head port_list; 823 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 824 uint16_t max_vpi; /* Maximum virtual nports */ 825 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 826 uint16_t max_vports; /* 827 * For IOV HBAs max_vpi can change 828 * after a reset. max_vports is max 829 * number of vports present. This can 830 * be greater than max_vpi. 831 */ 832 uint16_t vpi_base; 833 uint16_t vfi_base; 834 unsigned long *vpi_bmask; /* vpi allocation table */ 835 uint16_t *vpi_ids; 836 uint16_t vpi_count; 837 struct list_head lpfc_vpi_blk_list; 838 839 /* Data structure used by fabric iocb scheduler */ 840 struct list_head fabric_iocb_list; 841 atomic_t fabric_iocb_count; 842 struct timer_list fabric_block_timer; 843 unsigned long bit_flags; 844 #define FABRIC_COMANDS_BLOCKED 0 845 atomic_t num_rsrc_err; 846 atomic_t num_cmd_success; 847 unsigned long last_rsrc_error_time; 848 unsigned long last_ramp_down_time; 849 unsigned long last_ramp_up_time; 850 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 851 struct dentry *hba_debugfs_root; 852 atomic_t debugfs_vport_count; 853 struct dentry *debug_hbqinfo; 854 struct dentry *debug_dumpHostSlim; 855 struct dentry *debug_dumpHBASlim; 856 struct dentry *debug_dumpData; /* BlockGuard BPL */ 857 struct dentry *debug_dumpDif; /* BlockGuard BPL */ 858 struct dentry *debug_InjErrLBA; /* LBA to inject errors at */ 859 struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */ 860 struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */ 861 struct dentry *debug_writeGuard; /* inject write guard_tag errors */ 862 struct dentry *debug_writeApp; /* inject write app_tag errors */ 863 struct dentry *debug_writeRef; /* inject write ref_tag errors */ 864 struct dentry *debug_readGuard; /* inject read guard_tag errors */ 865 struct dentry *debug_readApp; /* inject read app_tag errors */ 866 struct dentry *debug_readRef; /* inject read ref_tag errors */ 867 868 /* T10 DIF error injection */ 869 uint32_t lpfc_injerr_wgrd_cnt; 870 uint32_t lpfc_injerr_wapp_cnt; 871 uint32_t lpfc_injerr_wref_cnt; 872 uint32_t lpfc_injerr_rgrd_cnt; 873 uint32_t lpfc_injerr_rapp_cnt; 874 uint32_t lpfc_injerr_rref_cnt; 875 uint32_t lpfc_injerr_nportid; 876 struct lpfc_name lpfc_injerr_wwpn; 877 sector_t lpfc_injerr_lba; 878 #define LPFC_INJERR_LBA_OFF (sector_t)(-1) 879 880 struct dentry *debug_slow_ring_trc; 881 struct lpfc_debugfs_trc *slow_ring_trc; 882 atomic_t slow_ring_trc_cnt; 883 /* iDiag debugfs sub-directory */ 884 struct dentry *idiag_root; 885 struct dentry *idiag_pci_cfg; 886 struct dentry *idiag_bar_acc; 887 struct dentry *idiag_que_info; 888 struct dentry *idiag_que_acc; 889 struct dentry *idiag_drb_acc; 890 struct dentry *idiag_ctl_acc; 891 struct dentry *idiag_mbx_acc; 892 struct dentry *idiag_ext_acc; 893 #endif 894 895 /* Used for deferred freeing of ELS data buffers */ 896 struct list_head elsbuf; 897 int elsbuf_cnt; 898 int elsbuf_prev_cnt; 899 900 uint8_t temp_sensor_support; 901 /* Fields used for heart beat. */ 902 unsigned long last_completion_time; 903 unsigned long skipped_hb; 904 struct timer_list hb_tmofunc; 905 uint8_t hb_outstanding; 906 struct timer_list rrq_tmr; 907 enum hba_temp_state over_temp_state; 908 /* ndlp reference management */ 909 spinlock_t ndlp_lock; 910 /* 911 * Following bit will be set for all buffer tags which are not 912 * associated with any HBQ. 913 */ 914 #define QUE_BUFTAG_BIT (1<<31) 915 uint32_t buffer_tag_count; 916 int wait_4_mlo_maint_flg; 917 wait_queue_head_t wait_4_mlo_m_q; 918 /* data structure used for latency data collection */ 919 #define LPFC_NO_BUCKET 0 920 #define LPFC_LINEAR_BUCKET 1 921 #define LPFC_POWER2_BUCKET 2 922 uint8_t bucket_type; 923 uint32_t bucket_base; 924 uint32_t bucket_step; 925 926 /* Maximum number of events that can be outstanding at any time*/ 927 #define LPFC_MAX_EVT_COUNT 512 928 atomic_t fast_event_count; 929 uint32_t fcoe_eventtag; 930 uint32_t fcoe_eventtag_at_fcf_scan; 931 uint32_t fcoe_cvl_eventtag; 932 uint32_t fcoe_cvl_eventtag_attn; 933 struct lpfc_fcf fcf; 934 uint8_t fc_map[3]; 935 uint8_t valid_vlan; 936 uint16_t vlan_id; 937 struct list_head fcf_conn_rec_list; 938 939 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 940 struct list_head ct_ev_waiters; 941 struct unsol_rcv_ct_ctx ct_ctx[64]; 942 uint32_t ctx_idx; 943 944 uint8_t menlo_flag; /* menlo generic flags */ 945 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 946 uint32_t iocb_cnt; 947 uint32_t iocb_max; 948 atomic_t sdev_cnt; 949 uint8_t fips_spec_rev; 950 uint8_t fips_level; 951 }; 952 953 static inline struct Scsi_Host * 954 lpfc_shost_from_vport(struct lpfc_vport *vport) 955 { 956 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 957 } 958 959 static inline void 960 lpfc_set_loopback_flag(struct lpfc_hba *phba) 961 { 962 if (phba->cfg_topology == FLAGS_LOCAL_LB) 963 phba->link_flag |= LS_LOOPBACK_MODE; 964 else 965 phba->link_flag &= ~LS_LOOPBACK_MODE; 966 } 967 968 static inline int 969 lpfc_is_link_up(struct lpfc_hba *phba) 970 { 971 return phba->link_state == LPFC_LINK_UP || 972 phba->link_state == LPFC_CLEAR_LA || 973 phba->link_state == LPFC_HBA_READY; 974 } 975 976 static inline void 977 lpfc_worker_wake_up(struct lpfc_hba *phba) 978 { 979 /* Set the lpfc data pending flag */ 980 set_bit(LPFC_DATA_READY, &phba->data_flags); 981 982 /* Wake up worker thread */ 983 wake_up(&phba->work_waitq); 984 return; 985 } 986 987 static inline int 988 lpfc_readl(void __iomem *addr, uint32_t *data) 989 { 990 uint32_t temp; 991 temp = readl(addr); 992 if (temp == 0xffffffff) 993 return -EIO; 994 *data = temp; 995 return 0; 996 } 997 998 static inline int 999 lpfc_sli_read_hs(struct lpfc_hba *phba) 1000 { 1001 /* 1002 * There was a link/board error. Read the status register to retrieve 1003 * the error event and process it. 1004 */ 1005 phba->sli.slistat.err_attn_event++; 1006 1007 /* Save status info and check for unplug error */ 1008 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || 1009 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || 1010 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { 1011 return -EIO; 1012 } 1013 1014 /* Clear chip Host Attention error bit */ 1015 writel(HA_ERATT, phba->HAregaddr); 1016 readl(phba->HAregaddr); /* flush */ 1017 phba->pport->stopped = 1; 1018 1019 return 0; 1020 } 1021