1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2006 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 struct 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_DFT_HBA_Q_DEPTH 2048 /* max cmds per hba */ 31 #define LPFC_LC_HBA_Q_DEPTH 1024 /* max cmds per low cost hba */ 32 #define LPFC_LP101_HBA_Q_DEPTH 128 /* max cmds per low cost hba */ 33 34 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ 35 #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 36 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 37 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 38 39 /* Define macros for 64 bit support */ 40 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 41 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 42 #define getPaddr(high, low) ((dma_addr_t)( \ 43 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 44 /* Provide maximum configuration definitions. */ 45 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 46 #define FC_MAX_ADPTMSG 64 47 48 #define MAX_HBAEVT 32 49 50 enum lpfc_polling_flags { 51 ENABLE_FCP_RING_POLLING = 0x1, 52 DISABLE_FCP_RING_INT = 0x2 53 }; 54 55 /* Provide DMA memory definitions the driver uses per port instance. */ 56 struct lpfc_dmabuf { 57 struct list_head list; 58 void *virt; /* virtual address ptr */ 59 dma_addr_t phys; /* mapped address */ 60 }; 61 62 struct lpfc_dma_pool { 63 struct lpfc_dmabuf *elements; 64 uint32_t max_count; 65 uint32_t current_count; 66 }; 67 68 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 69 #define MEM_PRI 0x100 70 71 72 /****************************************************************************/ 73 /* Device VPD save area */ 74 /****************************************************************************/ 75 typedef struct lpfc_vpd { 76 uint32_t status; /* vpd status value */ 77 uint32_t length; /* number of bytes actually returned */ 78 struct { 79 uint32_t rsvd1; /* Revision numbers */ 80 uint32_t biuRev; 81 uint32_t smRev; 82 uint32_t smFwRev; 83 uint32_t endecRev; 84 uint16_t rBit; 85 uint8_t fcphHigh; 86 uint8_t fcphLow; 87 uint8_t feaLevelHigh; 88 uint8_t feaLevelLow; 89 uint32_t postKernRev; 90 uint32_t opFwRev; 91 uint8_t opFwName[16]; 92 uint32_t sli1FwRev; 93 uint8_t sli1FwName[16]; 94 uint32_t sli2FwRev; 95 uint8_t sli2FwName[16]; 96 } rev; 97 } lpfc_vpd_t; 98 99 struct lpfc_scsi_buf; 100 101 102 /* 103 * lpfc stat counters 104 */ 105 struct lpfc_stats { 106 /* Statistics for ELS commands */ 107 uint32_t elsLogiCol; 108 uint32_t elsRetryExceeded; 109 uint32_t elsXmitRetry; 110 uint32_t elsDelayRetry; 111 uint32_t elsRcvDrop; 112 uint32_t elsRcvFrame; 113 uint32_t elsRcvRSCN; 114 uint32_t elsRcvRNID; 115 uint32_t elsRcvFARP; 116 uint32_t elsRcvFARPR; 117 uint32_t elsRcvFLOGI; 118 uint32_t elsRcvPLOGI; 119 uint32_t elsRcvADISC; 120 uint32_t elsRcvPDISC; 121 uint32_t elsRcvFAN; 122 uint32_t elsRcvLOGO; 123 uint32_t elsRcvPRLO; 124 uint32_t elsRcvPRLI; 125 uint32_t elsRcvLIRR; 126 uint32_t elsRcvRPS; 127 uint32_t elsRcvRPL; 128 uint32_t elsXmitFLOGI; 129 uint32_t elsXmitPLOGI; 130 uint32_t elsXmitPRLI; 131 uint32_t elsXmitADISC; 132 uint32_t elsXmitLOGO; 133 uint32_t elsXmitSCR; 134 uint32_t elsXmitRNID; 135 uint32_t elsXmitFARP; 136 uint32_t elsXmitFARPR; 137 uint32_t elsXmitACC; 138 uint32_t elsXmitLSRJT; 139 140 uint32_t frameRcvBcast; 141 uint32_t frameRcvMulti; 142 uint32_t strayXmitCmpl; 143 uint32_t frameXmitDelay; 144 uint32_t xriCmdCmpl; 145 uint32_t xriStatErr; 146 uint32_t LinkUp; 147 uint32_t LinkDown; 148 uint32_t LinkMultiEvent; 149 uint32_t NoRcvBuf; 150 uint32_t fcpCmd; 151 uint32_t fcpCmpl; 152 uint32_t fcpRspErr; 153 uint32_t fcpRemoteStop; 154 uint32_t fcpPortRjt; 155 uint32_t fcpPortBusy; 156 uint32_t fcpError; 157 uint32_t fcpLocalErr; 158 }; 159 160 enum sysfs_mbox_state { 161 SMBOX_IDLE, 162 SMBOX_WRITING, 163 SMBOX_READING 164 }; 165 166 struct lpfc_sysfs_mbox { 167 enum sysfs_mbox_state state; 168 size_t offset; 169 struct lpfcMboxq * mbox; 170 }; 171 172 struct lpfc_hba { 173 struct lpfc_sli sli; 174 struct lpfc_sli2_slim *slim2p; 175 dma_addr_t slim2p_mapping; 176 uint16_t pci_cfg_value; 177 178 int32_t hba_state; 179 180 #define LPFC_STATE_UNKNOWN 0 /* HBA state is unknown */ 181 #define LPFC_WARM_START 1 /* HBA state after selective reset */ 182 #define LPFC_INIT_START 2 /* Initial state after board reset */ 183 #define LPFC_INIT_MBX_CMDS 3 /* Initialize HBA with mbox commands */ 184 #define LPFC_LINK_DOWN 4 /* HBA initialized, link is down */ 185 #define LPFC_LINK_UP 5 /* Link is up - issue READ_LA */ 186 #define LPFC_LOCAL_CFG_LINK 6 /* local NPORT Id configured */ 187 #define LPFC_FLOGI 7 /* FLOGI sent to Fabric */ 188 #define LPFC_FABRIC_CFG_LINK 8 /* Fabric assigned NPORT Id 189 configured */ 190 #define LPFC_NS_REG 9 /* Register with NameServer */ 191 #define LPFC_NS_QRY 10 /* Query NameServer for NPort ID list */ 192 #define LPFC_BUILD_DISC_LIST 11 /* Build ADISC and PLOGI lists for 193 * device authentication / discovery */ 194 #define LPFC_DISC_AUTH 12 /* Processing ADISC list */ 195 #define LPFC_CLEAR_LA 13 /* authentication cmplt - issue 196 CLEAR_LA */ 197 #define LPFC_HBA_READY 32 198 #define LPFC_HBA_ERROR -1 199 200 int32_t stopped; /* HBA has not been restarted since last ERATT */ 201 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 202 203 uint32_t fc_eventTag; /* event tag for link attention */ 204 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 205 206 uint32_t num_disc_nodes; /*in addition to hba_state */ 207 208 struct timer_list fc_estabtmo; /* link establishment timer */ 209 struct timer_list fc_disctmo; /* Discovery rescue timer */ 210 struct timer_list fc_fdmitmo; /* fdmi timer */ 211 /* These fields used to be binfo */ 212 struct lpfc_name fc_nodename; /* fc nodename */ 213 struct lpfc_name fc_portname; /* fc portname */ 214 uint32_t fc_pref_DID; /* preferred D_ID */ 215 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 216 uint32_t fc_edtov; /* E_D_TOV timer value */ 217 uint32_t fc_arbtov; /* ARB_TOV timer value */ 218 uint32_t fc_ratov; /* R_A_TOV timer value */ 219 uint32_t fc_rttov; /* R_T_TOV timer value */ 220 uint32_t fc_altov; /* AL_TOV timer value */ 221 uint32_t fc_crtov; /* C_R_TOV timer value */ 222 uint32_t fc_citov; /* C_I_TOV timer value */ 223 uint32_t fc_myDID; /* fibre channel S_ID */ 224 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 225 226 struct serv_parm fc_sparam; /* buffer for our service parameters */ 227 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 228 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 229 230 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 231 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 232 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 233 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 234 uint32_t lmt; 235 uint32_t fc_flag; /* FC flags */ 236 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 237 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 238 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 239 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 240 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 241 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 242 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 243 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 244 #define FC_FABRIC 0x100 /* We are fabric attached */ 245 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */ 246 #define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/ 247 #define FC_LOADING 0x1000 /* HBA in process of loading drvr */ 248 #define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */ 249 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 250 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 251 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 252 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */ 253 254 uint32_t fc_topology; /* link topology, from LINK INIT */ 255 256 struct lpfc_stats fc_stat; 257 258 /* These are the head/tail pointers for the bind, plogi, adisc, unmap, 259 * and map lists. Their counters are immediately following. 260 */ 261 struct list_head fc_plogi_list; 262 struct list_head fc_adisc_list; 263 struct list_head fc_reglogin_list; 264 struct list_head fc_prli_list; 265 struct list_head fc_nlpunmap_list; 266 struct list_head fc_nlpmap_list; 267 struct list_head fc_npr_list; 268 struct list_head fc_unused_list; 269 270 /* Keep counters for the number of entries in each list. */ 271 uint16_t fc_plogi_cnt; 272 uint16_t fc_adisc_cnt; 273 uint16_t fc_reglogin_cnt; 274 uint16_t fc_prli_cnt; 275 uint16_t fc_unmap_cnt; 276 uint16_t fc_map_cnt; 277 uint16_t fc_npr_cnt; 278 uint16_t fc_unused_cnt; 279 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 280 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 281 282 uint32_t wwnn[2]; 283 uint32_t RandomData[7]; 284 285 uint32_t cfg_log_verbose; 286 uint32_t cfg_lun_queue_depth; 287 uint32_t cfg_nodev_tmo; 288 uint32_t cfg_hba_queue_depth; 289 uint32_t cfg_fcp_class; 290 uint32_t cfg_use_adisc; 291 uint32_t cfg_ack0; 292 uint32_t cfg_topology; 293 uint32_t cfg_scan_down; 294 uint32_t cfg_link_speed; 295 uint32_t cfg_cr_delay; 296 uint32_t cfg_cr_count; 297 uint32_t cfg_multi_ring_support; 298 uint32_t cfg_fdmi_on; 299 uint32_t cfg_discovery_threads; 300 uint32_t cfg_max_luns; 301 uint32_t cfg_poll; 302 uint32_t cfg_poll_tmo; 303 uint32_t cfg_sg_seg_cnt; 304 uint32_t cfg_sg_dma_buf_size; 305 306 lpfc_vpd_t vpd; /* vital product data */ 307 308 struct Scsi_Host *host; 309 struct pci_dev *pcidev; 310 struct list_head work_list; 311 uint32_t work_ha; /* Host Attention Bits for WT */ 312 uint32_t work_ha_mask; /* HA Bits owned by WT */ 313 uint32_t work_hs; /* HS stored in case of ERRAT */ 314 uint32_t work_status[2]; /* Extra status from SLIM */ 315 uint32_t work_hba_events; /* Timeout to be handled */ 316 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */ 317 #define WORKER_ELS_TMO 0x2 /* ELS timeout */ 318 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */ 319 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */ 320 321 wait_queue_head_t *work_wait; 322 struct task_struct *worker_thread; 323 324 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 325 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 326 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 327 PCI BAR0 */ 328 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 329 PCI BAR2 */ 330 331 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 332 void __iomem *HAregaddr; /* virtual address for host attn reg */ 333 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 334 void __iomem *HSregaddr; /* virtual address for host status 335 reg */ 336 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 337 338 int brd_no; /* FC board number */ 339 340 char SerialNumber[32]; /* adapter Serial Number */ 341 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 342 char ModelDesc[256]; /* Model Description */ 343 char ModelName[80]; /* Model Name */ 344 char ProgramType[256]; /* Program Type */ 345 char Port[20]; /* Port No */ 346 uint8_t vpd_flag; /* VPD data flag */ 347 348 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 349 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 350 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 351 #define VPD_PORT 0x8 /* valid vpd port data */ 352 #define VPD_MASK 0xf /* mask for any vpd data */ 353 354 struct timer_list fcp_poll_timer; 355 struct timer_list els_tmofunc; 356 357 /* 358 * stat counters 359 */ 360 uint64_t fc4InputRequests; 361 uint64_t fc4OutputRequests; 362 uint64_t fc4ControlRequests; 363 364 struct lpfc_sysfs_mbox sysfs_mbox; 365 366 /* fastpath list. */ 367 spinlock_t scsi_buf_list_lock; 368 struct list_head lpfc_scsi_buf_list; 369 uint32_t total_scsi_bufs; 370 struct list_head lpfc_iocb_list; 371 uint32_t total_iocbq_bufs; 372 373 /* pci_mem_pools */ 374 struct pci_pool *lpfc_scsi_dma_buf_pool; 375 struct pci_pool *lpfc_mbuf_pool; 376 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 377 378 mempool_t *mbox_mem_pool; 379 mempool_t *nlp_mem_pool; 380 struct list_head freebufList; 381 struct list_head ctrspbuflist; 382 struct list_head rnidrspbuflist; 383 384 struct fc_host_statistics link_stats; 385 }; 386 387 388 struct rnidrsp { 389 void *buf; 390 uint32_t uniqueid; 391 struct list_head list; 392 uint32_t data; 393 }; 394