1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2007 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 22struct lpfc_sli2_slim; 23 24 25#define LPFC_MAX_TARGET 256 /* max number of targets supported */ 26#define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els 27 requests */ 28#define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact 29 the NameServer before giving up. */ 30#define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 31#define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 32#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 33#define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 34 35/* Define macros for 64 bit support */ 36#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 37#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 38#define getPaddr(high, low) ((dma_addr_t)( \ 39 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 40/* Provide maximum configuration definitions. */ 41#define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 42#define FC_MAX_ADPTMSG 64 43 44#define MAX_HBAEVT 32 45 46enum lpfc_polling_flags { 47 ENABLE_FCP_RING_POLLING = 0x1, 48 DISABLE_FCP_RING_INT = 0x2 49}; 50 51/* Provide DMA memory definitions the driver uses per port instance. */ 52struct lpfc_dmabuf { 53 struct list_head list; 54 void *virt; /* virtual address ptr */ 55 dma_addr_t phys; /* mapped address */ 56}; 57 58struct lpfc_dma_pool { 59 struct lpfc_dmabuf *elements; 60 uint32_t max_count; 61 uint32_t current_count; 62}; 63 64/* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 65#define MEM_PRI 0x100 66 67 68/****************************************************************************/ 69/* Device VPD save area */ 70/****************************************************************************/ 71typedef struct lpfc_vpd { 72 uint32_t status; /* vpd status value */ 73 uint32_t length; /* number of bytes actually returned */ 74 struct { 75 uint32_t rsvd1; /* Revision numbers */ 76 uint32_t biuRev; 77 uint32_t smRev; 78 uint32_t smFwRev; 79 uint32_t endecRev; 80 uint16_t rBit; 81 uint8_t fcphHigh; 82 uint8_t fcphLow; 83 uint8_t feaLevelHigh; 84 uint8_t feaLevelLow; 85 uint32_t postKernRev; 86 uint32_t opFwRev; 87 uint8_t opFwName[16]; 88 uint32_t sli1FwRev; 89 uint8_t sli1FwName[16]; 90 uint32_t sli2FwRev; 91 uint8_t sli2FwName[16]; 92 } rev; 93} lpfc_vpd_t; 94 95struct lpfc_scsi_buf; 96 97 98/* 99 * lpfc stat counters 100 */ 101struct lpfc_stats { 102 /* Statistics for ELS commands */ 103 uint32_t elsLogiCol; 104 uint32_t elsRetryExceeded; 105 uint32_t elsXmitRetry; 106 uint32_t elsDelayRetry; 107 uint32_t elsRcvDrop; 108 uint32_t elsRcvFrame; 109 uint32_t elsRcvRSCN; 110 uint32_t elsRcvRNID; 111 uint32_t elsRcvFARP; 112 uint32_t elsRcvFARPR; 113 uint32_t elsRcvFLOGI; 114 uint32_t elsRcvPLOGI; 115 uint32_t elsRcvADISC; 116 uint32_t elsRcvPDISC; 117 uint32_t elsRcvFAN; 118 uint32_t elsRcvLOGO; 119 uint32_t elsRcvPRLO; 120 uint32_t elsRcvPRLI; 121 uint32_t elsRcvLIRR; 122 uint32_t elsRcvRPS; 123 uint32_t elsRcvRPL; 124 uint32_t elsXmitFLOGI; 125 uint32_t elsXmitPLOGI; 126 uint32_t elsXmitPRLI; 127 uint32_t elsXmitADISC; 128 uint32_t elsXmitLOGO; 129 uint32_t elsXmitSCR; 130 uint32_t elsXmitRNID; 131 uint32_t elsXmitFARP; 132 uint32_t elsXmitFARPR; 133 uint32_t elsXmitACC; 134 uint32_t elsXmitLSRJT; 135 136 uint32_t frameRcvBcast; 137 uint32_t frameRcvMulti; 138 uint32_t strayXmitCmpl; 139 uint32_t frameXmitDelay; 140 uint32_t xriCmdCmpl; 141 uint32_t xriStatErr; 142 uint32_t LinkUp; 143 uint32_t LinkDown; 144 uint32_t LinkMultiEvent; 145 uint32_t NoRcvBuf; 146 uint32_t fcpCmd; 147 uint32_t fcpCmpl; 148 uint32_t fcpRspErr; 149 uint32_t fcpRemoteStop; 150 uint32_t fcpPortRjt; 151 uint32_t fcpPortBusy; 152 uint32_t fcpError; 153 uint32_t fcpLocalErr; 154}; 155 156enum sysfs_mbox_state { 157 SMBOX_IDLE, 158 SMBOX_WRITING, 159 SMBOX_READING 160}; 161 162struct lpfc_sysfs_mbox { 163 enum sysfs_mbox_state state; 164 size_t offset; 165 struct lpfcMboxq * mbox; 166}; 167 168struct lpfc_hba { 169 struct lpfc_sli sli; 170 struct lpfc_sli2_slim *slim2p; 171 dma_addr_t slim2p_mapping; 172 uint16_t pci_cfg_value; 173 174 int32_t hba_state; 175 176#define LPFC_STATE_UNKNOWN 0 /* HBA state is unknown */ 177#define LPFC_WARM_START 1 /* HBA state after selective reset */ 178#define LPFC_INIT_START 2 /* Initial state after board reset */ 179#define LPFC_INIT_MBX_CMDS 3 /* Initialize HBA with mbox commands */ 180#define LPFC_LINK_DOWN 4 /* HBA initialized, link is down */ 181#define LPFC_LINK_UP 5 /* Link is up - issue READ_LA */ 182#define LPFC_LOCAL_CFG_LINK 6 /* local NPORT Id configured */ 183#define LPFC_FLOGI 7 /* FLOGI sent to Fabric */ 184#define LPFC_FABRIC_CFG_LINK 8 /* Fabric assigned NPORT Id 185 configured */ 186#define LPFC_NS_REG 9 /* Register with NameServer */ 187#define LPFC_NS_QRY 10 /* Query NameServer for NPort ID list */ 188#define LPFC_BUILD_DISC_LIST 11 /* Build ADISC and PLOGI lists for 189 * device authentication / discovery */ 190#define LPFC_DISC_AUTH 12 /* Processing ADISC list */ 191#define LPFC_CLEAR_LA 13 /* authentication cmplt - issue 192 CLEAR_LA */ 193#define LPFC_HBA_READY 32 194#define LPFC_HBA_ERROR -1 195 196 int32_t stopped; /* HBA has not been restarted since last ERATT */ 197 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 198 199 uint32_t fc_eventTag; /* event tag for link attention */ 200 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 201 202 uint32_t num_disc_nodes; /*in addition to hba_state */ 203 204 struct timer_list fc_estabtmo; /* link establishment timer */ 205 struct timer_list fc_disctmo; /* Discovery rescue timer */ 206 struct timer_list fc_fdmitmo; /* fdmi timer */ 207 /* These fields used to be binfo */ 208 struct lpfc_name fc_nodename; /* fc nodename */ 209 struct lpfc_name fc_portname; /* fc portname */ 210 uint32_t fc_pref_DID; /* preferred D_ID */ 211 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 212 uint32_t fc_edtov; /* E_D_TOV timer value */ 213 uint32_t fc_arbtov; /* ARB_TOV timer value */ 214 uint32_t fc_ratov; /* R_A_TOV timer value */ 215 uint32_t fc_rttov; /* R_T_TOV timer value */ 216 uint32_t fc_altov; /* AL_TOV timer value */ 217 uint32_t fc_crtov; /* C_R_TOV timer value */ 218 uint32_t fc_citov; /* C_I_TOV timer value */ 219 uint32_t fc_myDID; /* fibre channel S_ID */ 220 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 221 222 struct serv_parm fc_sparam; /* buffer for our service parameters */ 223 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 224 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 225 226 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 227 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 228 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 229 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 230 uint32_t lmt; 231 uint32_t fc_flag; /* FC flags */ 232#define FC_PT2PT 0x1 /* pt2pt with no fabric */ 233#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 234#define FC_DISC_TMO 0x4 /* Discovery timer running */ 235#define FC_PUBLIC_LOOP 0x8 /* Public loop */ 236#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 237#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 238#define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 239#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 240#define FC_FABRIC 0x100 /* We are fabric attached */ 241#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */ 242#define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/ 243#define FC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */ 244#define FC_LOADING 0x1000 /* HBA in process of loading drvr */ 245#define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */ 246#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 247#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 248#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 249#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 250#define FC_LOOPBACK_MODE 0x40000 /* NPort is in Loopback mode */ 251 /* This flag is set while issuing */ 252 /* INIT_LINK mailbox command */ 253#define FC_IGNORE_ERATT 0x80000 /* intr handler should ignore ERATT */ 254 255 uint32_t fc_topology; /* link topology, from LINK INIT */ 256 257 struct lpfc_stats fc_stat; 258 259 struct list_head fc_nodes; 260 261 /* Keep counters for the number of entries in each list. */ 262 uint16_t fc_plogi_cnt; 263 uint16_t fc_adisc_cnt; 264 uint16_t fc_reglogin_cnt; 265 uint16_t fc_prli_cnt; 266 uint16_t fc_unmap_cnt; 267 uint16_t fc_map_cnt; 268 uint16_t fc_npr_cnt; 269 uint16_t fc_unused_cnt; 270 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 271 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 272 273 uint32_t wwnn[2]; 274 uint32_t RandomData[7]; 275 276 uint32_t cfg_log_verbose; 277 uint32_t cfg_lun_queue_depth; 278 uint32_t cfg_nodev_tmo; 279 uint32_t cfg_devloss_tmo; 280 uint32_t cfg_hba_queue_depth; 281 uint32_t cfg_fcp_class; 282 uint32_t cfg_use_adisc; 283 uint32_t cfg_ack0; 284 uint32_t cfg_topology; 285 uint32_t cfg_scan_down; 286 uint32_t cfg_link_speed; 287 uint32_t cfg_cr_delay; 288 uint32_t cfg_cr_count; 289 uint32_t cfg_multi_ring_support; 290 uint32_t cfg_multi_ring_rctl; 291 uint32_t cfg_multi_ring_type; 292 uint32_t cfg_fdmi_on; 293 uint32_t cfg_discovery_threads; 294 uint32_t cfg_max_luns; 295 uint32_t cfg_poll; 296 uint32_t cfg_poll_tmo; 297 uint32_t cfg_use_msi; 298 uint32_t cfg_sg_seg_cnt; 299 uint32_t cfg_sg_dma_buf_size; 300 uint64_t cfg_soft_wwnn; 301 uint64_t cfg_soft_wwpn; 302 303 uint32_t dev_loss_tmo_changed; 304 305 lpfc_vpd_t vpd; /* vital product data */ 306 307 struct Scsi_Host *host; 308 struct pci_dev *pcidev; 309 struct list_head work_list; 310 uint32_t work_ha; /* Host Attention Bits for WT */ 311 uint32_t work_ha_mask; /* HA Bits owned by WT */ 312 uint32_t work_hs; /* HS stored in case of ERRAT */ 313 uint32_t work_status[2]; /* Extra status from SLIM */ 314 uint32_t work_hba_events; /* Timeout to be handled */ 315#define WORKER_DISC_TMO 0x1 /* Discovery timeout */ 316#define WORKER_ELS_TMO 0x2 /* ELS timeout */ 317#define WORKER_MBOX_TMO 0x4 /* MBOX timeout */ 318#define WORKER_FDMI_TMO 0x8 /* FDMI timeout */ 319 320 wait_queue_head_t *work_wait; 321 struct task_struct *worker_thread; 322 323 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 324 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 325 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 326 PCI BAR0 */ 327 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 328 PCI BAR2 */ 329 330 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 331 void __iomem *HAregaddr; /* virtual address for host attn reg */ 332 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 333 void __iomem *HSregaddr; /* virtual address for host status 334 reg */ 335 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 336 337 int brd_no; /* FC board number */ 338 339 char SerialNumber[32]; /* adapter Serial Number */ 340 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 341 char ModelDesc[256]; /* Model Description */ 342 char ModelName[80]; /* Model Name */ 343 char ProgramType[256]; /* Program Type */ 344 char Port[20]; /* Port No */ 345 uint8_t vpd_flag; /* VPD data flag */ 346 347#define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 348#define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 349#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 350#define VPD_PORT 0x8 /* valid vpd port data */ 351#define VPD_MASK 0xf /* mask for any vpd data */ 352 353 uint8_t soft_wwn_enable; 354 355 struct timer_list fcp_poll_timer; 356 struct timer_list els_tmofunc; 357 358 /* 359 * stat counters 360 */ 361 uint64_t fc4InputRequests; 362 uint64_t fc4OutputRequests; 363 uint64_t fc4ControlRequests; 364 365 struct lpfc_sysfs_mbox sysfs_mbox; 366 367 /* fastpath list. */ 368 spinlock_t scsi_buf_list_lock; 369 struct list_head lpfc_scsi_buf_list; 370 uint32_t total_scsi_bufs; 371 struct list_head lpfc_iocb_list; 372 uint32_t total_iocbq_bufs; 373 374 /* pci_mem_pools */ 375 struct pci_pool *lpfc_scsi_dma_buf_pool; 376 struct pci_pool *lpfc_mbuf_pool; 377 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 378 379 mempool_t *mbox_mem_pool; 380 mempool_t *nlp_mem_pool; 381 382 struct fc_host_statistics link_stats; 383}; 384 385static inline void 386lpfc_set_loopback_flag(struct lpfc_hba *phba) { 387 if (phba->cfg_topology == FLAGS_LOCAL_LB) 388 phba->fc_flag |= FC_LOOPBACK_MODE; 389 else 390 phba->fc_flag &= ~FC_LOOPBACK_MODE; 391} 392 393struct rnidrsp { 394 void *buf; 395 uint32_t uniqueid; 396 struct list_head list; 397 uint32_t data; 398}; 399 400#define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */ 401