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 28struct 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 96enum 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. */ 102struct 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 109struct lpfc_dma_pool { 110 struct lpfc_dmabuf *elements; 111 uint32_t max_count; 112 uint32_t current_count; 113}; 114 115struct 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/****************************************************************************/ 131typedef 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 184struct lpfc_scsi_buf; 185 186 187/* 188 * lpfc stat counters 189 */ 190struct 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 250struct lpfc_hba; 251 252 253enum discovery_state { 254 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ 255 LPFC_VPORT_FAILED = 1, /* vport has failed */ 256 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */ 257 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */ 258 LPFC_FDISC = 8, /* FDISC sent for vport */ 259 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id 260 * configured */ 261 LPFC_NS_REG = 10, /* Register with NameServer */ 262 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */ 263 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for 264 * device authentication / discovery */ 265 LPFC_DISC_AUTH = 13, /* Processing ADISC list */ 266 LPFC_VPORT_READY = 32, 267}; 268 269enum hba_state { 270 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */ 271 LPFC_WARM_START = 1, /* HBA state after selective reset */ 272 LPFC_INIT_START = 2, /* Initial state after board reset */ 273 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */ 274 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */ 275 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */ 276 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue 277 * CLEAR_LA */ 278 LPFC_HBA_READY = 32, 279 LPFC_HBA_ERROR = -1 280}; 281 282struct lpfc_vport { 283 struct lpfc_hba *phba; 284 struct list_head listentry; 285 uint8_t port_type; 286#define LPFC_PHYSICAL_PORT 1 287#define LPFC_NPIV_PORT 2 288#define LPFC_FABRIC_PORT 3 289 enum discovery_state port_state; 290 291 uint16_t vpi; 292 uint16_t vfi; 293 uint8_t vpi_state; 294#define LPFC_VPI_REGISTERED 0x1 295 296 uint32_t fc_flag; /* FC flags */ 297/* Several of these flags are HBA centric and should be moved to 298 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP) 299 */ 300#define FC_PT2PT 0x1 /* pt2pt with no fabric */ 301#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 302#define FC_DISC_TMO 0x4 /* Discovery timer running */ 303#define FC_PUBLIC_LOOP 0x8 /* Public loop */ 304#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 305#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 306#define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 307#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 308#define FC_FABRIC 0x100 /* We are fabric attached */ 309#define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */ 310#define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */ 311#define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/ 312#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 313#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 314#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 315#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 316#define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */ 317#define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */ 318#define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */ 319#define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */ 320#define FC_VFI_REGISTERED 0x800000 /* VFI is registered */ 321#define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */ 322#define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */ 323 324 uint32_t ct_flags; 325#define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */ 326#define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */ 327#define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */ 328#define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */ 329#define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */ 330 331 struct list_head fc_nodes; 332 333 /* Keep counters for the number of entries in each list. */ 334 uint16_t fc_plogi_cnt; 335 uint16_t fc_adisc_cnt; 336 uint16_t fc_reglogin_cnt; 337 uint16_t fc_prli_cnt; 338 uint16_t fc_unmap_cnt; 339 uint16_t fc_map_cnt; 340 uint16_t fc_npr_cnt; 341 uint16_t fc_unused_cnt; 342 struct serv_parm fc_sparam; /* buffer for our service parameters */ 343 344 uint32_t fc_myDID; /* fibre channel S_ID */ 345 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 346 struct lpfc_name fabric_portname; 347 struct lpfc_name fabric_nodename; 348 349 int32_t stopped; /* HBA has not been restarted since last ERATT */ 350 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 351 352 uint32_t num_disc_nodes; /*in addition to hba_state */ 353 354 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 355 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 356 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */ 357 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 358 struct lpfc_name fc_nodename; /* fc nodename */ 359 struct lpfc_name fc_portname; /* fc portname */ 360 361 struct lpfc_work_evt disc_timeout_evt; 362 363 struct timer_list fc_disctmo; /* Discovery rescue timer */ 364 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 365 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 366 367 spinlock_t work_port_lock; 368 uint32_t work_port_events; /* Timeout to be handled */ 369#define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */ 370#define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */ 371#define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */ 372#define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */ 373 374#define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */ 375#define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */ 376#define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */ 377#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ 378#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ 379#define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ 380 381 struct timer_list fc_fdmitmo; 382 struct timer_list els_tmofunc; 383 struct timer_list delayed_disc_tmo; 384 385 int unreg_vpi_cmpl; 386 387 uint8_t load_flag; 388#define FC_LOADING 0x1 /* HBA in process of loading drvr */ 389#define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ 390 /* Vport Config Parameters */ 391 uint32_t cfg_scan_down; 392 uint32_t cfg_lun_queue_depth; 393 uint32_t cfg_nodev_tmo; 394 uint32_t cfg_devloss_tmo; 395 uint32_t cfg_restrict_login; 396 uint32_t cfg_peer_port_login; 397 uint32_t cfg_fcp_class; 398 uint32_t cfg_use_adisc; 399 uint32_t cfg_fdmi_on; 400 uint32_t cfg_discovery_threads; 401 uint32_t cfg_log_verbose; 402 uint32_t cfg_max_luns; 403 uint32_t cfg_enable_da_id; 404 uint32_t cfg_max_scsicmpl_time; 405 uint32_t cfg_tgt_queue_depth; 406 407 uint32_t dev_loss_tmo_changed; 408 409 struct fc_vport *fc_vport; 410 411#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 412 struct dentry *debug_disc_trc; 413 struct dentry *debug_nodelist; 414 struct dentry *vport_debugfs_root; 415 struct lpfc_debugfs_trc *disc_trc; 416 atomic_t disc_trc_cnt; 417#endif 418 uint8_t stat_data_enabled; 419 uint8_t stat_data_blocked; 420 struct list_head rcv_buffer_list; 421 unsigned long rcv_buffer_time_stamp; 422 uint32_t vport_flag; 423#define STATIC_VPORT 1 424}; 425 426struct hbq_s { 427 uint16_t entry_count; /* Current number of HBQ slots */ 428 uint16_t buffer_count; /* Current number of buffers posted */ 429 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */ 430 uint32_t hbqPutIdx; /* HBQ slot to use */ 431 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */ 432 void *hbq_virt; /* Virtual ptr to this hbq */ 433 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */ 434 /* Callback for HBQ buffer allocation */ 435 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *); 436 /* Callback for HBQ buffer free */ 437 void (*hbq_free_buffer) (struct lpfc_hba *, 438 struct hbq_dmabuf *); 439}; 440 441#define LPFC_MAX_HBQS 4 442/* this matches the position in the lpfc_hbq_defs array */ 443#define LPFC_ELS_HBQ 0 444#define LPFC_EXTRA_HBQ 1 445 446enum hba_temp_state { 447 HBA_NORMAL_TEMP, 448 HBA_OVER_TEMP 449}; 450 451enum intr_type_t { 452 NONE = 0, 453 INTx, 454 MSI, 455 MSIX, 456}; 457 458struct unsol_rcv_ct_ctx { 459 uint32_t ctxt_id; 460 uint32_t SID; 461 uint32_t flags; 462#define UNSOL_VALID 0x00000001 463 uint16_t oxid; 464 uint16_t rxid; 465}; 466 467#define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/ 468#define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */ 469#define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */ 470#define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */ 471#define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */ 472#define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */ 473#define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */ 474#define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G 475#define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \ 476 (1 << LPFC_USER_LINK_SPEED_10G) | \ 477 (1 << LPFC_USER_LINK_SPEED_8G) | \ 478 (1 << LPFC_USER_LINK_SPEED_4G) | \ 479 (1 << LPFC_USER_LINK_SPEED_2G) | \ 480 (1 << LPFC_USER_LINK_SPEED_1G) | \ 481 (1 << LPFC_USER_LINK_SPEED_AUTO)) 482#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16" 483 484enum nemb_type { 485 nemb_mse = 1, 486 nemb_hbd 487}; 488 489enum mbox_type { 490 mbox_rd = 1, 491 mbox_wr 492}; 493 494enum dma_type { 495 dma_mbox = 1, 496 dma_ebuf 497}; 498 499enum sta_type { 500 sta_pre_addr = 1, 501 sta_pos_addr 502}; 503 504struct lpfc_mbox_ext_buf_ctx { 505 uint32_t state; 506#define LPFC_BSG_MBOX_IDLE 0 507#define LPFC_BSG_MBOX_HOST 1 508#define LPFC_BSG_MBOX_PORT 2 509#define LPFC_BSG_MBOX_DONE 3 510#define LPFC_BSG_MBOX_ABTS 4 511 enum nemb_type nembType; 512 enum mbox_type mboxType; 513 uint32_t numBuf; 514 uint32_t mbxTag; 515 uint32_t seqNum; 516 struct lpfc_dmabuf *mbx_dmabuf; 517 struct list_head ext_dmabuf_list; 518}; 519 520struct lpfc_hba { 521 /* SCSI interface function jump table entries */ 522 int (*lpfc_new_scsi_buf) 523 (struct lpfc_vport *, int); 524 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf) 525 (struct lpfc_hba *, struct lpfc_nodelist *); 526 int (*lpfc_scsi_prep_dma_buf) 527 (struct lpfc_hba *, struct lpfc_scsi_buf *); 528 void (*lpfc_scsi_unprep_dma_buf) 529 (struct lpfc_hba *, struct lpfc_scsi_buf *); 530 void (*lpfc_release_scsi_buf) 531 (struct lpfc_hba *, struct lpfc_scsi_buf *); 532 void (*lpfc_rampdown_queue_depth) 533 (struct lpfc_hba *); 534 void (*lpfc_scsi_prep_cmnd) 535 (struct lpfc_vport *, struct lpfc_scsi_buf *, 536 struct lpfc_nodelist *); 537 /* IOCB interface function jump table entries */ 538 int (*__lpfc_sli_issue_iocb) 539 (struct lpfc_hba *, uint32_t, 540 struct lpfc_iocbq *, uint32_t); 541 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, 542 struct lpfc_iocbq *); 543 int (*lpfc_hba_down_post)(struct lpfc_hba *phba); 544 545 546 IOCB_t * (*lpfc_get_iocb_from_iocbq) 547 (struct lpfc_iocbq *); 548 void (*lpfc_scsi_cmd_iocb_cmpl) 549 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); 550 551 /* MBOX interface function jump table entries */ 552 int (*lpfc_sli_issue_mbox) 553 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 554 /* Slow-path IOCB process function jump table entries */ 555 void (*lpfc_sli_handle_slow_ring_event) 556 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 557 uint32_t mask); 558 /* INIT device interface function jump table entries */ 559 int (*lpfc_sli_hbq_to_firmware) 560 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *); 561 int (*lpfc_sli_brdrestart) 562 (struct lpfc_hba *); 563 int (*lpfc_sli_brdready) 564 (struct lpfc_hba *, uint32_t); 565 void (*lpfc_handle_eratt) 566 (struct lpfc_hba *); 567 void (*lpfc_stop_port) 568 (struct lpfc_hba *); 569 int (*lpfc_hba_init_link) 570 (struct lpfc_hba *, uint32_t); 571 int (*lpfc_hba_down_link) 572 (struct lpfc_hba *, uint32_t); 573 int (*lpfc_selective_reset) 574 (struct lpfc_hba *); 575 576 /* SLI4 specific HBA data structure */ 577 struct lpfc_sli4_hba sli4_hba; 578 579 struct lpfc_sli sli; 580 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */ 581 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */ 582 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 583#define LPFC_SLI3_HBQ_ENABLED 0x01 584#define LPFC_SLI3_NPIV_ENABLED 0x02 585#define LPFC_SLI3_VPORT_TEARDOWN 0x04 586#define LPFC_SLI3_CRP_ENABLED 0x08 587#define LPFC_SLI3_BG_ENABLED 0x20 588#define LPFC_SLI3_DSS_ENABLED 0x40 589#define LPFC_SLI4_PERFH_ENABLED 0x80 590#define LPFC_SLI4_PHWQ_ENABLED 0x100 591 uint32_t iocb_cmd_size; 592 uint32_t iocb_rsp_size; 593 594 enum hba_state link_state; 595 uint32_t link_flag; /* link state flags */ 596#define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */ 597 /* This flag is set while issuing */ 598 /* INIT_LINK mailbox command */ 599#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 600#define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 601 602 uint32_t hba_flag; /* hba generic flags */ 603#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ 604#define DEFER_ERATT 0x2 /* Deferred error attention in progress */ 605#define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */ 606#define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/ 607#define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */ 608#define FCP_XRI_ABORT_EVENT 0x20 609#define ELS_XRI_ABORT_EVENT 0x40 610#define ASYNC_EVENT 0x80 611#define LINK_DISABLED 0x100 /* Link disabled by user */ 612#define FCF_TS_INPROG 0x200 /* FCF table scan in progress */ 613#define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */ 614#define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */ 615#define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */ 616#define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */ 617#define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */ 618 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ 619 struct lpfc_dmabuf slim2p; 620 621 MAILBOX_t *mbox; 622 uint32_t *mbox_ext; 623 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx; 624 uint32_t ha_copy; 625 struct _PCB *pcb; 626 struct _IOCB *IOCBs; 627 628 struct lpfc_dmabuf hbqslimp; 629 630 uint16_t pci_cfg_value; 631 632 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 633 634 uint32_t fc_eventTag; /* event tag for link attention */ 635 uint32_t link_events; 636 637 /* These fields used to be binfo */ 638 uint32_t fc_pref_DID; /* preferred D_ID */ 639 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 640 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */ 641 uint32_t fc_edtov; /* E_D_TOV timer value */ 642 uint32_t fc_arbtov; /* ARB_TOV timer value */ 643 uint32_t fc_ratov; /* R_A_TOV timer value */ 644 uint32_t fc_rttov; /* R_T_TOV timer value */ 645 uint32_t fc_altov; /* AL_TOV timer value */ 646 uint32_t fc_crtov; /* C_R_TOV timer value */ 647 uint32_t fc_citov; /* C_I_TOV timer value */ 648 649 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 650 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 651 652 uint32_t lmt; 653 654 uint32_t fc_topology; /* link topology, from LINK INIT */ 655 656 struct lpfc_stats fc_stat; 657 658 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 659 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 660 661 uint8_t wwnn[8]; 662 uint8_t wwpn[8]; 663 uint32_t RandomData[7]; 664 665 /* HBA Config Parameters */ 666 uint32_t cfg_ack0; 667 uint32_t cfg_enable_npiv; 668 uint32_t cfg_enable_rrq; 669 uint32_t cfg_topology; 670 uint32_t cfg_link_speed; 671#define LPFC_FCF_FOV 1 /* Fast fcf failover */ 672#define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */ 673 uint32_t cfg_fcf_failover_policy; 674 uint32_t cfg_cr_delay; 675 uint32_t cfg_cr_count; 676 uint32_t cfg_multi_ring_support; 677 uint32_t cfg_multi_ring_rctl; 678 uint32_t cfg_multi_ring_type; 679 uint32_t cfg_poll; 680 uint32_t cfg_poll_tmo; 681 uint32_t cfg_use_msi; 682 uint32_t cfg_fcp_imax; 683 uint32_t cfg_fcp_wq_count; 684 uint32_t cfg_fcp_eq_count; 685 uint32_t cfg_sg_seg_cnt; 686 uint32_t cfg_prot_sg_seg_cnt; 687 uint32_t cfg_sg_dma_buf_size; 688 uint64_t cfg_soft_wwnn; 689 uint64_t cfg_soft_wwpn; 690 uint32_t cfg_hba_queue_depth; 691 uint32_t cfg_enable_hba_reset; 692 uint32_t cfg_enable_hba_heartbeat; 693 uint32_t cfg_enable_bg; 694 uint32_t cfg_hostmem_hgp; 695 uint32_t cfg_log_verbose; 696 uint32_t cfg_aer_support; 697 uint32_t cfg_sriov_nr_virtfn; 698 uint32_t cfg_iocb_cnt; 699 uint32_t cfg_suppress_link_up; 700#define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */ 701#define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */ 702#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */ 703 uint32_t cfg_enable_dss; 704 lpfc_vpd_t vpd; /* vital product data */ 705 706 struct pci_dev *pcidev; 707 struct list_head work_list; 708 uint32_t work_ha; /* Host Attention Bits for WT */ 709 uint32_t work_ha_mask; /* HA Bits owned by WT */ 710 uint32_t work_hs; /* HS stored in case of ERRAT */ 711 uint32_t work_status[2]; /* Extra status from SLIM */ 712 713 wait_queue_head_t work_waitq; 714 struct task_struct *worker_thread; 715 unsigned long data_flags; 716 717 uint32_t hbq_in_use; /* HBQs in use flag */ 718 struct list_head rb_pend_list; /* Received buffers to be processed */ 719 uint32_t hbq_count; /* Count of configured HBQs */ 720 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */ 721 722 uint32_t fcp_qidx; /* next work queue to post work to */ 723 724 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 725 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */ 726 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 727 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 728 PCI BAR0 */ 729 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 730 PCI BAR2 */ 731 732 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 733 void __iomem *HAregaddr; /* virtual address for host attn reg */ 734 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 735 void __iomem *HSregaddr; /* virtual address for host status 736 reg */ 737 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 738 739 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 740 struct lpfc_pgp *port_gp; 741 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 742 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 743 744 int brd_no; /* FC board number */ 745 char SerialNumber[32]; /* adapter Serial Number */ 746 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 747 char ModelDesc[256]; /* Model Description */ 748 char ModelName[80]; /* Model Name */ 749 char ProgramType[256]; /* Program Type */ 750 char Port[20]; /* Port No */ 751 uint8_t vpd_flag; /* VPD data flag */ 752 753#define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 754#define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 755#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 756#define VPD_PORT 0x8 /* valid vpd port data */ 757#define VPD_MASK 0xf /* mask for any vpd data */ 758 759 uint8_t soft_wwn_enable; 760 761 struct timer_list fcp_poll_timer; 762 struct timer_list eratt_poll; 763 764 /* 765 * stat counters 766 */ 767 uint64_t fc4InputRequests; 768 uint64_t fc4OutputRequests; 769 uint64_t fc4ControlRequests; 770 uint64_t bg_guard_err_cnt; 771 uint64_t bg_apptag_err_cnt; 772 uint64_t bg_reftag_err_cnt; 773 774 /* fastpath list. */ 775 spinlock_t scsi_buf_list_lock; 776 struct list_head lpfc_scsi_buf_list; 777 uint32_t total_scsi_bufs; 778 struct list_head lpfc_iocb_list; 779 uint32_t total_iocbq_bufs; 780 struct list_head active_rrq_list; 781 spinlock_t hbalock; 782 783 /* pci_mem_pools */ 784 struct pci_pool *lpfc_scsi_dma_buf_pool; 785 struct pci_pool *lpfc_mbuf_pool; 786 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */ 787 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */ 788 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */ 789 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 790 791 mempool_t *mbox_mem_pool; 792 mempool_t *nlp_mem_pool; 793 mempool_t *rrq_pool; 794 795 struct fc_host_statistics link_stats; 796 enum intr_type_t intr_type; 797 uint32_t intr_mode; 798#define LPFC_INTR_ERROR 0xFFFFFFFF 799 struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; 800 801 struct list_head port_list; 802 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 803 uint16_t max_vpi; /* Maximum virtual nports */ 804#define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */ 805 uint16_t max_vports; /* 806 * For IOV HBAs max_vpi can change 807 * after a reset. max_vports is max 808 * number of vports present. This can 809 * be greater than max_vpi. 810 */ 811 uint16_t vpi_base; 812 uint16_t vfi_base; 813 unsigned long *vpi_bmask; /* vpi allocation table */ 814 uint16_t *vpi_ids; 815 uint16_t vpi_count; 816 struct list_head lpfc_vpi_blk_list; 817 818 /* Data structure used by fabric iocb scheduler */ 819 struct list_head fabric_iocb_list; 820 atomic_t fabric_iocb_count; 821 struct timer_list fabric_block_timer; 822 unsigned long bit_flags; 823#define FABRIC_COMANDS_BLOCKED 0 824 atomic_t num_rsrc_err; 825 atomic_t num_cmd_success; 826 unsigned long last_rsrc_error_time; 827 unsigned long last_ramp_down_time; 828 unsigned long last_ramp_up_time; 829#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 830 struct dentry *hba_debugfs_root; 831 atomic_t debugfs_vport_count; 832 struct dentry *debug_hbqinfo; 833 struct dentry *debug_dumpHostSlim; 834 struct dentry *debug_dumpHBASlim; 835 struct dentry *debug_dumpData; /* BlockGuard BPL */ 836 struct dentry *debug_dumpDif; /* BlockGuard BPL */ 837 struct dentry *debug_InjErrLBA; /* LBA to inject errors at */ 838 struct dentry *debug_writeGuard; /* inject write guard_tag errors */ 839 struct dentry *debug_writeApp; /* inject write app_tag errors */ 840 struct dentry *debug_writeRef; /* inject write ref_tag errors */ 841 struct dentry *debug_readApp; /* inject read app_tag errors */ 842 struct dentry *debug_readRef; /* inject read ref_tag errors */ 843 844 /* T10 DIF error injection */ 845 uint32_t lpfc_injerr_wgrd_cnt; 846 uint32_t lpfc_injerr_wapp_cnt; 847 uint32_t lpfc_injerr_wref_cnt; 848 uint32_t lpfc_injerr_rapp_cnt; 849 uint32_t lpfc_injerr_rref_cnt; 850 sector_t lpfc_injerr_lba; 851#define LPFC_INJERR_LBA_OFF (sector_t)0xffffffffffffffff 852 853 struct dentry *debug_slow_ring_trc; 854 struct lpfc_debugfs_trc *slow_ring_trc; 855 atomic_t slow_ring_trc_cnt; 856 /* iDiag debugfs sub-directory */ 857 struct dentry *idiag_root; 858 struct dentry *idiag_pci_cfg; 859 struct dentry *idiag_bar_acc; 860 struct dentry *idiag_que_info; 861 struct dentry *idiag_que_acc; 862 struct dentry *idiag_drb_acc; 863 struct dentry *idiag_ctl_acc; 864 struct dentry *idiag_mbx_acc; 865 struct dentry *idiag_ext_acc; 866#endif 867 868 /* Used for deferred freeing of ELS data buffers */ 869 struct list_head elsbuf; 870 int elsbuf_cnt; 871 int elsbuf_prev_cnt; 872 873 uint8_t temp_sensor_support; 874 /* Fields used for heart beat. */ 875 unsigned long last_completion_time; 876 unsigned long skipped_hb; 877 struct timer_list hb_tmofunc; 878 uint8_t hb_outstanding; 879 struct timer_list rrq_tmr; 880 enum hba_temp_state over_temp_state; 881 /* ndlp reference management */ 882 spinlock_t ndlp_lock; 883 /* 884 * Following bit will be set for all buffer tags which are not 885 * associated with any HBQ. 886 */ 887#define QUE_BUFTAG_BIT (1<<31) 888 uint32_t buffer_tag_count; 889 int wait_4_mlo_maint_flg; 890 wait_queue_head_t wait_4_mlo_m_q; 891 /* data structure used for latency data collection */ 892#define LPFC_NO_BUCKET 0 893#define LPFC_LINEAR_BUCKET 1 894#define LPFC_POWER2_BUCKET 2 895 uint8_t bucket_type; 896 uint32_t bucket_base; 897 uint32_t bucket_step; 898 899/* Maximum number of events that can be outstanding at any time*/ 900#define LPFC_MAX_EVT_COUNT 512 901 atomic_t fast_event_count; 902 uint32_t fcoe_eventtag; 903 uint32_t fcoe_eventtag_at_fcf_scan; 904 struct lpfc_fcf fcf; 905 uint8_t fc_map[3]; 906 uint8_t valid_vlan; 907 uint16_t vlan_id; 908 struct list_head fcf_conn_rec_list; 909 910 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ 911 struct list_head ct_ev_waiters; 912 struct unsol_rcv_ct_ctx ct_ctx[64]; 913 uint32_t ctx_idx; 914 915 uint8_t menlo_flag; /* menlo generic flags */ 916#define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */ 917 uint32_t iocb_cnt; 918 uint32_t iocb_max; 919 atomic_t sdev_cnt; 920 uint8_t fips_spec_rev; 921 uint8_t fips_level; 922}; 923 924static inline struct Scsi_Host * 925lpfc_shost_from_vport(struct lpfc_vport *vport) 926{ 927 return container_of((void *) vport, struct Scsi_Host, hostdata[0]); 928} 929 930static inline void 931lpfc_set_loopback_flag(struct lpfc_hba *phba) 932{ 933 if (phba->cfg_topology == FLAGS_LOCAL_LB) 934 phba->link_flag |= LS_LOOPBACK_MODE; 935 else 936 phba->link_flag &= ~LS_LOOPBACK_MODE; 937} 938 939static inline int 940lpfc_is_link_up(struct lpfc_hba *phba) 941{ 942 return phba->link_state == LPFC_LINK_UP || 943 phba->link_state == LPFC_CLEAR_LA || 944 phba->link_state == LPFC_HBA_READY; 945} 946 947static inline void 948lpfc_worker_wake_up(struct lpfc_hba *phba) 949{ 950 /* Set the lpfc data pending flag */ 951 set_bit(LPFC_DATA_READY, &phba->data_flags); 952 953 /* Wake up worker thread */ 954 wake_up(&phba->work_waitq); 955 return; 956} 957 958static inline int 959lpfc_readl(void __iomem *addr, uint32_t *data) 960{ 961 uint32_t temp; 962 temp = readl(addr); 963 if (temp == 0xffffffff) 964 return -EIO; 965 *data = temp; 966 return 0; 967} 968 969static inline int 970lpfc_sli_read_hs(struct lpfc_hba *phba) 971{ 972 /* 973 * There was a link/board error. Read the status register to retrieve 974 * the error event and process it. 975 */ 976 phba->sli.slistat.err_attn_event++; 977 978 /* Save status info and check for unplug error */ 979 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || 980 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || 981 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { 982 return -EIO; 983 } 984 985 /* Clear chip Host Attention error bit */ 986 writel(HA_ERATT, phba->HAregaddr); 987 readl(phba->HAregaddr); /* flush */ 988 phba->pport->stopped = 1; 989 990 return 0; 991} 992