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 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 /* queue dump line buffer size */ 97 #define LPFC_LBUF_SZ 128 98 99 enum lpfc_polling_flags { 100 ENABLE_FCP_RING_POLLING = 0x1, 101 DISABLE_FCP_RING_INT = 0x2 102 }; 103 104 /* Provide DMA memory definitions the driver uses per port instance. */ 105 struct lpfc_dmabuf { 106 struct list_head list; 107 void *virt; /* virtual address ptr */ 108 dma_addr_t phys; /* mapped address */ 109 uint32_t buffer_tag; /* used for tagged queue ring */ 110 }; 111 112 struct lpfc_dma_pool { 113 struct lpfc_dmabuf *elements; 114 uint32_t max_count; 115 uint32_t current_count; 116 }; 117 118 struct hbq_dmabuf { 119 struct lpfc_dmabuf hbuf; 120 struct lpfc_dmabuf dbuf; 121 uint32_t size; 122 uint32_t tag; 123 struct lpfc_cq_event cq_event; 124 unsigned long time_stamp; 125 }; 126 127 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 128 #define MEM_PRI 0x100 129 130 131 /****************************************************************************/ 132 /* Device VPD save area */ 133 /****************************************************************************/ 134 typedef struct lpfc_vpd { 135 uint32_t status; /* vpd status value */ 136 uint32_t length; /* number of bytes actually returned */ 137 struct { 138 uint32_t rsvd1; /* Revision numbers */ 139 uint32_t biuRev; 140 uint32_t smRev; 141 uint32_t smFwRev; 142 uint32_t endecRev; 143 uint16_t rBit; 144 uint8_t fcphHigh; 145 uint8_t fcphLow; 146 uint8_t feaLevelHigh; 147 uint8_t feaLevelLow; 148 uint32_t postKernRev; 149 uint32_t opFwRev; 150 uint8_t opFwName[16]; 151 uint32_t sli1FwRev; 152 uint8_t sli1FwName[16]; 153 uint32_t sli2FwRev; 154 uint8_t sli2FwName[16]; 155 } rev; 156 struct { 157 #ifdef __BIG_ENDIAN_BITFIELD 158 uint32_t rsvd3 :19; /* Reserved */ 159 uint32_t cdss : 1; /* Configure Data Security SLI */ 160 uint32_t rsvd2 : 3; /* Reserved */ 161 uint32_t cbg : 1; /* Configure BlockGuard */ 162 uint32_t cmv : 1; /* Configure Max VPIs */ 163 uint32_t ccrp : 1; /* Config Command Ring Polling */ 164 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 165 uint32_t chbs : 1; /* Cofigure Host Backing store */ 166 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 167 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 168 uint32_t cmx : 1; /* Configure Max XRIs */ 169 uint32_t cmr : 1; /* Configure Max RPIs */ 170 #else /* __LITTLE_ENDIAN */ 171 uint32_t cmr : 1; /* Configure Max RPIs */ 172 uint32_t cmx : 1; /* Configure Max XRIs */ 173 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */ 174 uint32_t cinb : 1; /* Enable Interrupt Notification Block */ 175 uint32_t chbs : 1; /* Cofigure Host Backing store */ 176 uint32_t csah : 1; /* Configure Synchronous Abort Handling */ 177 uint32_t ccrp : 1; /* Config Command Ring Polling */ 178 uint32_t cmv : 1; /* Configure Max VPIs */ 179 uint32_t cbg : 1; /* Configure BlockGuard */ 180 uint32_t rsvd2 : 3; /* Reserved */ 181 uint32_t cdss : 1; /* Configure Data Security SLI */ 182 uint32_t rsvd3 :19; /* Reserved */ 183 #endif 184 } sli3Feat; 185 } lpfc_vpd_t; 186 187 struct lpfc_scsi_buf; 188 189 190 /* 191 * lpfc stat counters 192 */ 193 struct lpfc_stats { 194 /* Statistics for ELS commands */ 195 uint32_t elsLogiCol; 196 uint32_t elsRetryExceeded; 197 uint32_t elsXmitRetry; 198 uint32_t elsDelayRetry; 199 uint32_t elsRcvDrop; 200 uint32_t elsRcvFrame; 201 uint32_t elsRcvRSCN; 202 uint32_t elsRcvRNID; 203 uint32_t elsRcvFARP; 204 uint32_t elsRcvFARPR; 205 uint32_t elsRcvFLOGI; 206 uint32_t elsRcvPLOGI; 207 uint32_t elsRcvADISC; 208 uint32_t elsRcvPDISC; 209 uint32_t elsRcvFAN; 210 uint32_t elsRcvLOGO; 211 uint32_t elsRcvPRLO; 212 uint32_t elsRcvPRLI; 213 uint32_t elsRcvLIRR; 214 uint32_t elsRcvRLS; 215 uint32_t elsRcvRPS; 216 uint32_t elsRcvRPL; 217 uint32_t elsRcvRRQ; 218 uint32_t elsRcvRTV; 219 uint32_t elsRcvECHO; 220 uint32_t elsXmitFLOGI; 221 uint32_t elsXmitFDISC; 222 uint32_t elsXmitPLOGI; 223 uint32_t elsXmitPRLI; 224 uint32_t elsXmitADISC; 225 uint32_t elsXmitLOGO; 226 uint32_t elsXmitSCR; 227 uint32_t elsXmitRNID; 228 uint32_t elsXmitFARP; 229 uint32_t elsXmitFARPR; 230 uint32_t elsXmitACC; 231 uint32_t elsXmitLSRJT; 232 233 uint32_t frameRcvBcast; 234 uint32_t frameRcvMulti; 235 uint32_t strayXmitCmpl; 236 uint32_t frameXmitDelay; 237 uint32_t xriCmdCmpl; 238 uint32_t xriStatErr; 239 uint32_t LinkUp; 240 uint32_t LinkDown; 241 uint32_t LinkMultiEvent; 242 uint32_t NoRcvBuf; 243 uint32_t fcpCmd; 244 uint32_t fcpCmpl; 245 uint32_t fcpRspErr; 246 uint32_t fcpRemoteStop; 247 uint32_t fcpPortRjt; 248 uint32_t fcpPortBusy; 249 uint32_t fcpError; 250 uint32_t fcpLocalErr; 251 }; 252 253 struct lpfc_hba; 254 255 256 enum discovery_state { 257 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 258 LPFC_VPORT_FAILED = 1, /* vport has failed */ 259 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 260 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 261 LPFC_FDISC = 8, /* FDISC sent for vport */ 262 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 263 * configured */ 264 LPFC_NS_REG = 10, /* Register with NameServer */ 265 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 266 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 267 * device authentication / discovery */ 268 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 269 LPFC_VPORT_READY = 32, 270 }; 271 272 enum hba_state { 273 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 274 LPFC_WARM_START = 1, /* HBA state after selective reset */ 275 LPFC_INIT_START = 2, /* Initial state after board reset */ 276 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 277 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 278 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 279 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 280 * CLEAR_LA */ 281 LPFC_HBA_READY = 32, 282 LPFC_HBA_ERROR = -1 283 }; 284 285 struct lpfc_vport { 286 struct lpfc_hba *phba; 287 struct list_head listentry; 288 uint8_t port_type; 289 #define LPFC_PHYSICAL_PORT 1 290 #define LPFC_NPIV_PORT 2 291 #define LPFC_FABRIC_PORT 3 292 enum discovery_state port_state; 293 294 uint16_t vpi; 295 uint16_t vfi; 296 uint8_t vpi_state; 297 #define LPFC_VPI_REGISTERED 0x1 298 299 uint32_t fc_flag; /* FC flags */ 300 /* Several of these flags are HBA centric and should be moved to 301 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 302 */ 303 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 304 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 305 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 306 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 307 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 308 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 309 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 310 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 311 #define FC_FABRIC 0x100 /* We are fabric attached */ 312 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 313 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 314 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 315 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 316 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 317 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 318 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 319 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 320 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 321 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 322 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 323 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 324 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 325 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */ 326 327 uint32_t ct_flags; 328 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 329 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 330 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 331 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 332 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 333 334 struct list_head fc_nodes; 335 336 /* Keep counters for the number of entries in each list. */ 337 uint16_t fc_plogi_cnt; 338 uint16_t fc_adisc_cnt; 339 uint16_t fc_reglogin_cnt; 340 uint16_t fc_prli_cnt; 341 uint16_t fc_unmap_cnt; 342 uint16_t fc_map_cnt; 343 uint16_t fc_npr_cnt; 344 uint16_t fc_unused_cnt; 345 struct serv_parm fc_sparam; /* buffer for our service parameters */ 346 347 uint32_t fc_myDID; /* fibre channel S_ID */ 348 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 349 struct lpfc_name fabric_portname; 350 struct lpfc_name fabric_nodename; 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 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */ 376 377 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 378 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 379 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 380 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 381 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 382 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 383 384 struct timer_list fc_fdmitmo; 385 struct timer_list els_tmofunc; 386 struct timer_list delayed_disc_tmo; 387 388 int unreg_vpi_cmpl; 389 390 uint8_t load_flag; 391 #define FC_LOADING 0x1 /* HBA in process of loading drvr */ 392 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 393 /* Vport Config Parameters */ 394 uint32_t cfg_scan_down; 395 uint32_t cfg_lun_queue_depth; 396 uint32_t cfg_nodev_tmo; 397 uint32_t cfg_devloss_tmo; 398 uint32_t cfg_restrict_login; 399 uint32_t cfg_peer_port_login; 400 uint32_t cfg_fcp_class; 401 uint32_t cfg_use_adisc; 402 uint32_t cfg_fdmi_on; 403 uint32_t cfg_discovery_threads; 404 uint32_t cfg_log_verbose; 405 uint32_t cfg_max_luns; 406 uint32_t cfg_enable_da_id; 407 uint32_t cfg_max_scsicmpl_time; 408 uint32_t cfg_tgt_queue_depth; 409 410 uint32_t dev_loss_tmo_changed; 411 412 struct fc_vport *fc_vport; 413 414 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 415 struct dentry *debug_disc_trc; 416 struct dentry *debug_nodelist; 417 struct dentry *vport_debugfs_root; 418 struct lpfc_debugfs_trc *disc_trc; 419 atomic_t disc_trc_cnt; 420 #endif 421 uint8_t stat_data_enabled; 422 uint8_t stat_data_blocked; 423 struct list_head rcv_buffer_list; 424 unsigned long rcv_buffer_time_stamp; 425 uint32_t vport_flag; 426 #define STATIC_VPORT 1 427 }; 428 429 struct hbq_s { 430 uint16_t entry_count; /* Current number of HBQ slots */ 431 uint16_t buffer_count; /* Current number of buffers posted */ 432 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 433 uint32_t hbqPutIdx; /* HBQ slot to use */ 434 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 435 void *hbq_virt; /* Virtual ptr to this hbq */ 436 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 437 /* Callback for HBQ buffer allocation */ 438 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 439 /* Callback for HBQ buffer free */ 440 void (*hbq_free_buffer) (struct lpfc_hba *, 441 struct hbq_dmabuf *); 442 }; 443 444 #define LPFC_MAX_HBQS 4 445 /* this matches the position in the lpfc_hbq_defs array */ 446 #define LPFC_ELS_HBQ 0 447 #define LPFC_EXTRA_HBQ 1 448 449 enum hba_temp_state { 450 HBA_NORMAL_TEMP, 451 HBA_OVER_TEMP 452 }; 453 454 enum intr_type_t { 455 NONE = 0, 456 INTx, 457 MSI, 458 MSIX, 459 }; 460 461 struct unsol_rcv_ct_ctx { 462 uint32_t ctxt_id; 463 uint32_t SID; 464 uint32_t flags; 465 #define UNSOL_VALID 0x00000001 466 uint16_t oxid; 467 uint16_t rxid; 468 }; 469 470 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/ 471 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */ 472 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */ 473 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */ 474 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */ 475 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */ 476 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */ 477 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G 478 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \ 479 (1 << LPFC_USER_LINK_SPEED_10G) | \ 480 (1 << LPFC_USER_LINK_SPEED_8G) | \ 481 (1 << LPFC_USER_LINK_SPEED_4G) | \ 482 (1 << LPFC_USER_LINK_SPEED_2G) | \ 483 (1 << LPFC_USER_LINK_SPEED_1G) | \ 484 (1 << LPFC_USER_LINK_SPEED_AUTO)) 485 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16" 486 487 enum nemb_type { 488 nemb_mse = 1, 489 nemb_hbd 490 }; 491 492 enum mbox_type { 493 mbox_rd = 1, 494 mbox_wr 495 }; 496 497 enum dma_type { 498 dma_mbox = 1, 499 dma_ebuf 500 }; 501 502 enum sta_type { 503 sta_pre_addr = 1, 504 sta_pos_addr 505 }; 506 507 struct lpfc_mbox_ext_buf_ctx { 508 uint32_t state; 509 #define LPFC_BSG_MBOX_IDLE 0 510 #define LPFC_BSG_MBOX_HOST 1 511 #define LPFC_BSG_MBOX_PORT 2 512 #define LPFC_BSG_MBOX_DONE 3 513 #define LPFC_BSG_MBOX_ABTS 4 514 enum nemb_type nembType; 515 enum mbox_type mboxType; 516 uint32_t numBuf; 517 uint32_t mbxTag; 518 uint32_t seqNum; 519 struct lpfc_dmabuf *mbx_dmabuf; 520 struct list_head ext_dmabuf_list; 521 }; 522 523 struct lpfc_hba { 524 /* SCSI interface function jump table entries */ 525 int (*lpfc_new_scsi_buf) 526 (struct lpfc_vport *, int); 527 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 528 (struct lpfc_hba *, struct lpfc_nodelist *); 529 int (*lpfc_scsi_prep_dma_buf) 530 (struct lpfc_hba *, struct lpfc_scsi_buf *); 531 void (*lpfc_scsi_unprep_dma_buf) 532 (struct lpfc_hba *, struct lpfc_scsi_buf *); 533 void (*lpfc_release_scsi_buf) 534 (struct lpfc_hba *, struct lpfc_scsi_buf *); 535 void (*lpfc_rampdown_queue_depth) 536 (struct lpfc_hba *); 537 void (*lpfc_scsi_prep_cmnd) 538 (struct lpfc_vport *, struct lpfc_scsi_buf *, 539 struct lpfc_nodelist *); 540 541 /* IOCB interface function jump table entries */ 542 int (*__lpfc_sli_issue_iocb) 543 (struct lpfc_hba *, uint32_t, 544 struct lpfc_iocbq *, uint32_t); 545 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 546 struct lpfc_iocbq *); 547 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 548 IOCB_t * (*lpfc_get_iocb_from_iocbq) 549 (struct lpfc_iocbq *); 550 void (*lpfc_scsi_cmd_iocb_cmpl) 551 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 552 553 /* MBOX interface function jump table entries */ 554 int (*lpfc_sli_issue_mbox) 555 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 556 557 /* Slow-path IOCB process function jump table entries */ 558 void (*lpfc_sli_handle_slow_ring_event) 559 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 560 uint32_t mask); 561 562 /* INIT device interface function jump table entries */ 563 int (*lpfc_sli_hbq_to_firmware) 564 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 565 int (*lpfc_sli_brdrestart) 566 (struct lpfc_hba *); 567 int (*lpfc_sli_brdready) 568 (struct lpfc_hba *, uint32_t); 569 void (*lpfc_handle_eratt) 570 (struct lpfc_hba *); 571 void (*lpfc_stop_port) 572 (struct lpfc_hba *); 573 int (*lpfc_hba_init_link) 574 (struct lpfc_hba *, uint32_t); 575 int (*lpfc_hba_down_link) 576 (struct lpfc_hba *, uint32_t); 577 int (*lpfc_selective_reset) 578 (struct lpfc_hba *); 579 580 int (*lpfc_bg_scsi_prep_dma_buf) 581 (struct lpfc_hba *, struct lpfc_scsi_buf *); 582 /* Add new entries here */ 583 584 /* SLI4 specific HBA data structure */ 585 struct lpfc_sli4_hba sli4_hba; 586 587 struct lpfc_sli sli; 588 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 589 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 590 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 591 #define LPFC_SLI3_HBQ_ENABLED 0x01 592 #define LPFC_SLI3_NPIV_ENABLED 0x02 593 #define LPFC_SLI3_VPORT_TEARDOWN 0x04 594 #define LPFC_SLI3_CRP_ENABLED 0x08 595 #define LPFC_SLI3_BG_ENABLED 0x20 596 #define LPFC_SLI3_DSS_ENABLED 0x40 597 #define LPFC_SLI4_PERFH_ENABLED 0x80 598 #define LPFC_SLI4_PHWQ_ENABLED 0x100 599 uint32_t iocb_cmd_size; 600 uint32_t iocb_rsp_size; 601 602 enum hba_state link_state; 603 uint32_t link_flag; /* link state flags */ 604 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 605 /* This flag is set while issuing */ 606 /* INIT_LINK mailbox command */ 607 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 608 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 609 610 uint32_t hba_flag; /* hba generic flags */ 611 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 612 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 613 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */ 614 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 615 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 616 #define FCP_XRI_ABORT_EVENT 0x20 617 #define ELS_XRI_ABORT_EVENT 0x40 618 #define ASYNC_EVENT 0x80 619 #define LINK_DISABLED 0x100 /* Link disabled by user */ 620 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */ 621 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */ 622 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */ 623 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */ 624 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */ 625 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */ 626 #define HBA_FCP_IOQ_FLUSH 0x8000 /* FCP I/O queues being flushed */ 627 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 628 struct lpfc_dmabuf slim2p; 629 630 MAILBOX_t *mbox; 631 uint32_t *mbox_ext; 632 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx; 633 uint32_t ha_copy; 634 struct _PCB *pcb; 635 struct _IOCB *IOCBs; 636 637 struct lpfc_dmabuf hbqslimp; 638 639 uint16_t pci_cfg_value; 640 641 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 642 643 uint32_t fc_eventTag; /* event tag for link attention */ 644 uint32_t link_events; 645 646 /* These fields used to be binfo */ 647 uint32_t fc_pref_DID; /* preferred D_ID */ 648 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 649 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */ 650 uint32_t fc_edtov; /* E_D_TOV timer value */ 651 uint32_t fc_arbtov; /* ARB_TOV timer value */ 652 uint32_t fc_ratov; /* R_A_TOV timer value */ 653 uint32_t fc_rttov; /* R_T_TOV timer value */ 654 uint32_t fc_altov; /* AL_TOV timer value */ 655 uint32_t fc_crtov; /* C_R_TOV timer value */ 656 uint32_t fc_citov; /* C_I_TOV timer value */ 657 658 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 659 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 660 661 uint32_t lmt; 662 663 uint32_t fc_topology; /* link topology, from LINK INIT */ 664 665 struct lpfc_stats fc_stat; 666 667 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 668 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 669 670 uint8_t wwnn[8]; 671 uint8_t wwpn[8]; 672 uint32_t RandomData[7]; 673 674 /* HBA Config Parameters */ 675 uint32_t cfg_ack0; 676 uint32_t cfg_enable_npiv; 677 uint32_t cfg_enable_rrq; 678 uint32_t cfg_topology; 679 uint32_t cfg_link_speed; 680 #define LPFC_FCF_FOV 1 /* Fast fcf failover */ 681 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */ 682 uint32_t cfg_fcf_failover_policy; 683 uint32_t cfg_cr_delay; 684 uint32_t cfg_cr_count; 685 uint32_t cfg_multi_ring_support; 686 uint32_t cfg_multi_ring_rctl; 687 uint32_t cfg_multi_ring_type; 688 uint32_t cfg_poll; 689 uint32_t cfg_poll_tmo; 690 uint32_t cfg_use_msi; 691 uint32_t cfg_fcp_imax; 692 uint32_t cfg_fcp_wq_count; 693 uint32_t cfg_fcp_eq_count; 694 uint32_t cfg_sg_seg_cnt; 695 uint32_t cfg_prot_sg_seg_cnt; 696 uint32_t cfg_sg_dma_buf_size; 697 uint64_t cfg_soft_wwnn; 698 uint64_t cfg_soft_wwpn; 699 uint32_t cfg_hba_queue_depth; 700 uint32_t cfg_enable_hba_reset; 701 uint32_t cfg_enable_hba_heartbeat; 702 uint32_t cfg_enable_bg; 703 uint32_t cfg_hostmem_hgp; 704 uint32_t cfg_log_verbose; 705 uint32_t cfg_aer_support; 706 uint32_t cfg_sriov_nr_virtfn; 707 uint32_t cfg_iocb_cnt; 708 uint32_t cfg_suppress_link_up; 709 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 710 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 711 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 712 uint32_t cfg_enable_dss; 713 lpfc_vpd_t vpd; /* vital product data */ 714 715 struct pci_dev *pcidev; 716 struct list_head work_list; 717 uint32_t work_ha; /* Host Attention Bits for WT */ 718 uint32_t work_ha_mask; /* HA Bits owned by WT */ 719 uint32_t work_hs; /* HS stored in case of ERRAT */ 720 uint32_t work_status[2]; /* Extra status from SLIM */ 721 722 wait_queue_head_t work_waitq; 723 struct task_struct *worker_thread; 724 unsigned long data_flags; 725 726 uint32_t hbq_in_use; /* HBQs in use flag */ 727 struct list_head rb_pend_list; /* Received buffers to be processed */ 728 uint32_t hbq_count; /* Count of configured HBQs */ 729 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 730 731 uint32_t fcp_qidx; /* next work queue to post work to */ 732 733 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 734 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 735 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 736 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 737 PCI BAR0 */ 738 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 739 PCI BAR2 */ 740 741 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 742 void __iomem *HAregaddr; /* virtual address for host attn reg */ 743 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 744 void __iomem *HSregaddr; /* virtual address for host status 745 reg */ 746 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 747 748 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 749 struct lpfc_pgp *port_gp; 750 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 751 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 752 753 int brd_no; /* FC board number */ 754 char SerialNumber[32]; /* adapter Serial Number */ 755 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 756 char ModelDesc[256]; /* Model Description */ 757 char ModelName[80]; /* Model Name */ 758 char ProgramType[256]; /* Program Type */ 759 char Port[20]; /* Port No */ 760 uint8_t vpd_flag; /* VPD data flag */ 761 762 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 763 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 764 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 765 #define VPD_PORT 0x8 /* valid vpd port data */ 766 #define VPD_MASK 0xf /* mask for any vpd data */ 767 768 uint8_t soft_wwn_enable; 769 770 struct timer_list fcp_poll_timer; 771 struct timer_list eratt_poll; 772 773 /* 774 * stat counters 775 */ 776 uint64_t fc4InputRequests; 777 uint64_t fc4OutputRequests; 778 uint64_t fc4ControlRequests; 779 uint64_t bg_guard_err_cnt; 780 uint64_t bg_apptag_err_cnt; 781 uint64_t bg_reftag_err_cnt; 782 783 /* fastpath list. */ 784 spinlock_t scsi_buf_list_lock; 785 struct list_head lpfc_scsi_buf_list; 786 uint32_t total_scsi_bufs; 787 struct list_head lpfc_iocb_list; 788 uint32_t total_iocbq_bufs; 789 struct list_head active_rrq_list; 790 spinlock_t hbalock; 791 792 /* pci_mem_pools */ 793 struct pci_pool *lpfc_scsi_dma_buf_pool; 794 struct pci_pool *lpfc_mbuf_pool; 795 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 796 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 797 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 798 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 799 800 mempool_t *mbox_mem_pool; 801 mempool_t *nlp_mem_pool; 802 mempool_t *rrq_pool; 803 804 struct fc_host_statistics link_stats; 805 enum intr_type_t intr_type; 806 uint32_t intr_mode; 807 #define LPFC_INTR_ERROR 0xFFFFFFFF 808 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 809 810 struct list_head port_list; 811 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 812 uint16_t max_vpi; /* Maximum virtual nports */ 813 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 814 uint16_t max_vports; /* 815 * For IOV HBAs max_vpi can change 816 * after a reset. max_vports is max 817 * number of vports present. This can 818 * be greater than max_vpi. 819 */ 820 uint16_t vpi_base; 821 uint16_t vfi_base; 822 unsigned long *vpi_bmask; /* vpi allocation table */ 823 uint16_t *vpi_ids; 824 uint16_t vpi_count; 825 struct list_head lpfc_vpi_blk_list; 826 827 /* Data structure used by fabric iocb scheduler */ 828 struct list_head fabric_iocb_list; 829 atomic_t fabric_iocb_count; 830 struct timer_list fabric_block_timer; 831 unsigned long bit_flags; 832 #define FABRIC_COMANDS_BLOCKED 0 833 atomic_t num_rsrc_err; 834 atomic_t num_cmd_success; 835 unsigned long last_rsrc_error_time; 836 unsigned long last_ramp_down_time; 837 unsigned long last_ramp_up_time; 838 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 839 struct dentry *hba_debugfs_root; 840 atomic_t debugfs_vport_count; 841 struct dentry *debug_hbqinfo; 842 struct dentry *debug_dumpHostSlim; 843 struct dentry *debug_dumpHBASlim; 844 struct dentry *debug_dumpData; /* BlockGuard BPL */ 845 struct dentry *debug_dumpDif; /* BlockGuard BPL */ 846 struct dentry *debug_InjErrLBA; /* LBA to inject errors at */ 847 struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */ 848 struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */ 849 struct dentry *debug_writeGuard; /* inject write guard_tag errors */ 850 struct dentry *debug_writeApp; /* inject write app_tag errors */ 851 struct dentry *debug_writeRef; /* inject write ref_tag errors */ 852 struct dentry *debug_readGuard; /* inject read guard_tag errors */ 853 struct dentry *debug_readApp; /* inject read app_tag errors */ 854 struct dentry *debug_readRef; /* inject read ref_tag errors */ 855 856 /* T10 DIF error injection */ 857 uint32_t lpfc_injerr_wgrd_cnt; 858 uint32_t lpfc_injerr_wapp_cnt; 859 uint32_t lpfc_injerr_wref_cnt; 860 uint32_t lpfc_injerr_rgrd_cnt; 861 uint32_t lpfc_injerr_rapp_cnt; 862 uint32_t lpfc_injerr_rref_cnt; 863 uint32_t lpfc_injerr_nportid; 864 struct lpfc_name lpfc_injerr_wwpn; 865 sector_t lpfc_injerr_lba; 866 #define LPFC_INJERR_LBA_OFF (sector_t)(-1) 867 868 struct dentry *debug_slow_ring_trc; 869 struct lpfc_debugfs_trc *slow_ring_trc; 870 atomic_t slow_ring_trc_cnt; 871 /* iDiag debugfs sub-directory */ 872 struct dentry *idiag_root; 873 struct dentry *idiag_pci_cfg; 874 struct dentry *idiag_bar_acc; 875 struct dentry *idiag_que_info; 876 struct dentry *idiag_que_acc; 877 struct dentry *idiag_drb_acc; 878 struct dentry *idiag_ctl_acc; 879 struct dentry *idiag_mbx_acc; 880 struct dentry *idiag_ext_acc; 881 #endif 882 883 /* Used for deferred freeing of ELS data buffers */ 884 struct list_head elsbuf; 885 int elsbuf_cnt; 886 int elsbuf_prev_cnt; 887 888 uint8_t temp_sensor_support; 889 /* Fields used for heart beat. */ 890 unsigned long last_completion_time; 891 unsigned long skipped_hb; 892 struct timer_list hb_tmofunc; 893 uint8_t hb_outstanding; 894 struct timer_list rrq_tmr; 895 enum hba_temp_state over_temp_state; 896 /* ndlp reference management */ 897 spinlock_t ndlp_lock; 898 /* 899 * Following bit will be set for all buffer tags which are not 900 * associated with any HBQ. 901 */ 902 #define QUE_BUFTAG_BIT (1<<31) 903 uint32_t buffer_tag_count; 904 int wait_4_mlo_maint_flg; 905 wait_queue_head_t wait_4_mlo_m_q; 906 /* data structure used for latency data collection */ 907 #define LPFC_NO_BUCKET 0 908 #define LPFC_LINEAR_BUCKET 1 909 #define LPFC_POWER2_BUCKET 2 910 uint8_t bucket_type; 911 uint32_t bucket_base; 912 uint32_t bucket_step; 913 914 /* Maximum number of events that can be outstanding at any time*/ 915 #define LPFC_MAX_EVT_COUNT 512 916 atomic_t fast_event_count; 917 uint32_t fcoe_eventtag; 918 uint32_t fcoe_eventtag_at_fcf_scan; 919 uint32_t fcoe_cvl_eventtag; 920 uint32_t fcoe_cvl_eventtag_attn; 921 struct lpfc_fcf fcf; 922 uint8_t fc_map[3]; 923 uint8_t valid_vlan; 924 uint16_t vlan_id; 925 struct list_head fcf_conn_rec_list; 926 927 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 928 struct list_head ct_ev_waiters; 929 struct unsol_rcv_ct_ctx ct_ctx[64]; 930 uint32_t ctx_idx; 931 932 uint8_t menlo_flag; /* menlo generic flags */ 933 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 934 uint32_t iocb_cnt; 935 uint32_t iocb_max; 936 atomic_t sdev_cnt; 937 uint8_t fips_spec_rev; 938 uint8_t fips_level; 939 }; 940 941 static inline struct Scsi_Host * 942 lpfc_shost_from_vport(struct lpfc_vport *vport) 943 { 944 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 945 } 946 947 static inline void 948 lpfc_set_loopback_flag(struct lpfc_hba *phba) 949 { 950 if (phba->cfg_topology == FLAGS_LOCAL_LB) 951 phba->link_flag |= LS_LOOPBACK_MODE; 952 else 953 phba->link_flag &= ~LS_LOOPBACK_MODE; 954 } 955 956 static inline int 957 lpfc_is_link_up(struct lpfc_hba *phba) 958 { 959 return phba->link_state == LPFC_LINK_UP || 960 phba->link_state == LPFC_CLEAR_LA || 961 phba->link_state == LPFC_HBA_READY; 962 } 963 964 static inline void 965 lpfc_worker_wake_up(struct lpfc_hba *phba) 966 { 967 /* Set the lpfc data pending flag */ 968 set_bit(LPFC_DATA_READY, &phba->data_flags); 969 970 /* Wake up worker thread */ 971 wake_up(&phba->work_waitq); 972 return; 973 } 974 975 static inline int 976 lpfc_readl(void __iomem *addr, uint32_t *data) 977 { 978 uint32_t temp; 979 temp = readl(addr); 980 if (temp == 0xffffffff) 981 return -EIO; 982 *data = temp; 983 return 0; 984 } 985 986 static inline int 987 lpfc_sli_read_hs(struct lpfc_hba *phba) 988 { 989 /* 990 * There was a link/board error. Read the status register to retrieve 991 * the error event and process it. 992 */ 993 phba->sli.slistat.err_attn_event++; 994 995 /* Save status info and check for unplug error */ 996 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || 997 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || 998 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { 999 return -EIO; 1000 } 1001 1002 /* Clear chip Host Attention error bit */ 1003 writel(HA_ERATT, phba->HAregaddr); 1004 readl(phba->HAregaddr); /* flush */ 1005 phba->pport->stopped = 1; 1006 1007 return 0; 1008 } 1009