1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2005 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 #define LPFC_MAX_TARGET 256 /* max targets supported */ 25 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els req */ 26 #define LPFC_MAX_NS_RETRY 3 /* max NameServer retries */ 27 28 #define LPFC_DFT_HBA_Q_DEPTH 2048 /* max cmds per hba */ 29 #define LPFC_LC_HBA_Q_DEPTH 1024 /* max cmds per low cost hba */ 30 #define LPFC_LP101_HBA_Q_DEPTH 128 /* max cmds per low cost hba */ 31 32 #define LPFC_CMD_PER_LUN 30 /* max outstanding cmds per lun */ 33 #define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ 34 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 35 36 /* Define macros for 64 bit support */ 37 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 38 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 39 #define getPaddr(high, low) ((dma_addr_t)( \ 40 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 41 /* Provide maximum configuration definitions. */ 42 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 43 #define MAX_FCP_TARGET 256 /* max num of FCP targets supported */ 44 #define FC_MAX_ADPTMSG 64 45 46 #define MAX_HBAEVT 32 47 48 /* Provide DMA memory definitions the driver uses per port instance. */ 49 struct lpfc_dmabuf { 50 struct list_head list; 51 void *virt; /* virtual address ptr */ 52 dma_addr_t phys; /* mapped address */ 53 }; 54 55 struct lpfc_dma_pool { 56 struct lpfc_dmabuf *elements; 57 uint32_t max_count; 58 uint32_t current_count; 59 }; 60 61 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 62 #define MEM_PRI 0x100 63 64 65 /****************************************************************************/ 66 /* Device VPD save area */ 67 /****************************************************************************/ 68 typedef struct lpfc_vpd { 69 uint32_t status; /* vpd status value */ 70 uint32_t length; /* number of bytes actually returned */ 71 struct { 72 uint32_t rsvd1; /* Revision numbers */ 73 uint32_t biuRev; 74 uint32_t smRev; 75 uint32_t smFwRev; 76 uint32_t endecRev; 77 uint16_t rBit; 78 uint8_t fcphHigh; 79 uint8_t fcphLow; 80 uint8_t feaLevelHigh; 81 uint8_t feaLevelLow; 82 uint32_t postKernRev; 83 uint32_t opFwRev; 84 uint8_t opFwName[16]; 85 uint32_t sli1FwRev; 86 uint8_t sli1FwName[16]; 87 uint32_t sli2FwRev; 88 uint8_t sli2FwName[16]; 89 } rev; 90 } lpfc_vpd_t; 91 92 struct lpfc_scsi_buf; 93 94 95 /* 96 * lpfc stat counters 97 */ 98 struct lpfc_stats { 99 /* Statistics for ELS commands */ 100 uint32_t elsLogiCol; 101 uint32_t elsRetryExceeded; 102 uint32_t elsXmitRetry; 103 uint32_t elsDelayRetry; 104 uint32_t elsRcvDrop; 105 uint32_t elsRcvFrame; 106 uint32_t elsRcvRSCN; 107 uint32_t elsRcvRNID; 108 uint32_t elsRcvFARP; 109 uint32_t elsRcvFARPR; 110 uint32_t elsRcvFLOGI; 111 uint32_t elsRcvPLOGI; 112 uint32_t elsRcvADISC; 113 uint32_t elsRcvPDISC; 114 uint32_t elsRcvFAN; 115 uint32_t elsRcvLOGO; 116 uint32_t elsRcvPRLO; 117 uint32_t elsRcvPRLI; 118 uint32_t elsRcvRRQ; 119 uint32_t elsXmitFLOGI; 120 uint32_t elsXmitPLOGI; 121 uint32_t elsXmitPRLI; 122 uint32_t elsXmitADISC; 123 uint32_t elsXmitLOGO; 124 uint32_t elsXmitSCR; 125 uint32_t elsXmitRNID; 126 uint32_t elsXmitFARP; 127 uint32_t elsXmitFARPR; 128 uint32_t elsXmitACC; 129 uint32_t elsXmitLSRJT; 130 131 uint32_t frameRcvBcast; 132 uint32_t frameRcvMulti; 133 uint32_t strayXmitCmpl; 134 uint32_t frameXmitDelay; 135 uint32_t xriCmdCmpl; 136 uint32_t xriStatErr; 137 uint32_t LinkUp; 138 uint32_t LinkDown; 139 uint32_t LinkMultiEvent; 140 uint32_t NoRcvBuf; 141 uint32_t fcpCmd; 142 uint32_t fcpCmpl; 143 uint32_t fcpRspErr; 144 uint32_t fcpRemoteStop; 145 uint32_t fcpPortRjt; 146 uint32_t fcpPortBusy; 147 uint32_t fcpError; 148 uint32_t fcpLocalErr; 149 }; 150 151 enum sysfs_mbox_state { 152 SMBOX_IDLE, 153 SMBOX_WRITING, 154 SMBOX_READING 155 }; 156 157 struct lpfc_sysfs_mbox { 158 enum sysfs_mbox_state state; 159 size_t offset; 160 struct lpfcMboxq * mbox; 161 }; 162 163 struct lpfc_hba { 164 struct list_head hba_list; /* List of hbas/ports */ 165 struct lpfc_sli sli; 166 struct lpfc_sli2_slim *slim2p; 167 dma_addr_t slim2p_mapping; 168 uint16_t pci_cfg_value; 169 170 uint32_t hba_state; 171 172 #define LPFC_INIT_START 1 /* Initial state after board reset */ 173 #define LPFC_INIT_MBX_CMDS 2 /* Initialize HBA with mbox commands */ 174 #define LPFC_LINK_DOWN 3 /* HBA initialized, link is down */ 175 #define LPFC_LINK_UP 4 /* Link is up - issue READ_LA */ 176 #define LPFC_LOCAL_CFG_LINK 5 /* local NPORT Id configured */ 177 #define LPFC_FLOGI 6 /* FLOGI sent to Fabric */ 178 #define LPFC_FABRIC_CFG_LINK 7 /* Fabric assigned NPORT Id 179 configured */ 180 #define LPFC_NS_REG 8 /* Register with NameServer */ 181 #define LPFC_NS_QRY 9 /* Query NameServer for NPort ID list */ 182 #define LPFC_BUILD_DISC_LIST 10 /* Build ADISC and PLOGI lists for 183 * device authentication / discovery */ 184 #define LPFC_DISC_AUTH 11 /* Processing ADISC list */ 185 #define LPFC_CLEAR_LA 12 /* authentication cmplt - issue 186 CLEAR_LA */ 187 #define LPFC_HBA_READY 32 188 #define LPFC_HBA_ERROR 0xff 189 190 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ 191 192 uint32_t fc_eventTag; /* event tag for link attention */ 193 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */ 194 195 uint32_t num_disc_nodes; /*in addition to hba_state */ 196 197 struct timer_list fc_estabtmo; /* link establishment timer */ 198 struct timer_list fc_disctmo; /* Discovery rescue timer */ 199 struct timer_list fc_fdmitmo; /* fdmi timer */ 200 /* These fields used to be binfo */ 201 struct lpfc_name fc_nodename; /* fc nodename */ 202 struct lpfc_name fc_portname; /* fc portname */ 203 uint32_t fc_pref_DID; /* preferred D_ID */ 204 uint8_t fc_pref_ALPA; /* preferred AL_PA */ 205 uint32_t fc_edtov; /* E_D_TOV timer value */ 206 uint32_t fc_arbtov; /* ARB_TOV timer value */ 207 uint32_t fc_ratov; /* R_A_TOV timer value */ 208 uint32_t fc_rttov; /* R_T_TOV timer value */ 209 uint32_t fc_altov; /* AL_TOV timer value */ 210 uint32_t fc_crtov; /* C_R_TOV timer value */ 211 uint32_t fc_citov; /* C_I_TOV timer value */ 212 uint32_t fc_myDID; /* fibre channel S_ID */ 213 uint32_t fc_prevDID; /* previous fibre channel S_ID */ 214 215 struct serv_parm fc_sparam; /* buffer for our service parameters */ 216 struct serv_parm fc_fabparam; /* fabric service parameters buffer */ 217 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */ 218 219 uint8_t fc_ns_retry; /* retries for fabric nameserver */ 220 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */ 221 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */ 222 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN]; 223 uint32_t lmt; 224 uint32_t fc_flag; /* FC flags */ 225 #define FC_PT2PT 0x1 /* pt2pt with no fabric */ 226 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */ 227 #define FC_DISC_TMO 0x4 /* Discovery timer running */ 228 #define FC_PUBLIC_LOOP 0x8 /* Public loop */ 229 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */ 230 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */ 231 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */ 232 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */ 233 #define FC_FABRIC 0x100 /* We are fabric attached */ 234 #define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */ 235 #define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/ 236 #define FC_LOADING 0x1000 /* HBA in process of loading drvr */ 237 #define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */ 238 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 239 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 240 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 241 242 uint32_t fc_topology; /* link topology, from LINK INIT */ 243 244 struct lpfc_stats fc_stat; 245 246 /* These are the head/tail pointers for the bind, plogi, adisc, unmap, 247 * and map lists. Their counters are immediately following. 248 */ 249 struct list_head fc_plogi_list; 250 struct list_head fc_adisc_list; 251 struct list_head fc_reglogin_list; 252 struct list_head fc_prli_list; 253 struct list_head fc_nlpunmap_list; 254 struct list_head fc_nlpmap_list; 255 struct list_head fc_npr_list; 256 struct list_head fc_unused_list; 257 258 /* Keep counters for the number of entries in each list. */ 259 uint16_t fc_plogi_cnt; 260 uint16_t fc_adisc_cnt; 261 uint16_t fc_reglogin_cnt; 262 uint16_t fc_prli_cnt; 263 uint16_t fc_unmap_cnt; 264 uint16_t fc_map_cnt; 265 uint16_t fc_npr_cnt; 266 uint16_t fc_unused_cnt; 267 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 268 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 269 270 #define LPFC_RPI_HASH_SIZE 64 271 #define LPFC_RPI_HASH_FUNC(x) ((x) & (0x3f)) 272 /* ptr to active D_ID / RPIs */ 273 struct lpfc_nodelist *fc_nlplookup[LPFC_RPI_HASH_SIZE]; 274 uint32_t wwnn[2]; 275 uint32_t RandomData[7]; 276 277 uint32_t cfg_log_verbose; 278 uint32_t cfg_lun_queue_depth; 279 uint32_t cfg_nodev_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_fdmi_on; 290 uint32_t cfg_fcp_bind_method; 291 uint32_t cfg_discovery_threads; 292 uint32_t cfg_max_luns; 293 uint32_t cfg_sg_seg_cnt; 294 uint32_t cfg_sg_dma_buf_size; 295 296 lpfc_vpd_t vpd; /* vital product data */ 297 298 struct Scsi_Host *host; 299 struct pci_dev *pcidev; 300 struct list_head work_list; 301 uint32_t work_ha; /* Host Attention Bits for WT */ 302 uint32_t work_ha_mask; /* HA Bits owned by WT */ 303 uint32_t work_hs; /* HS stored in case of ERRAT */ 304 uint32_t work_status[2]; /* Extra status from SLIM */ 305 uint32_t work_hba_events; /* Timeout to be handled */ 306 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */ 307 #define WORKER_ELS_TMO 0x2 /* ELS timeout */ 308 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */ 309 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */ 310 311 wait_queue_head_t *work_wait; 312 struct task_struct *worker_thread; 313 314 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 315 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 316 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 317 PCI BAR0 */ 318 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 319 PCI BAR2 */ 320 321 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 322 void __iomem *HAregaddr; /* virtual address for host attn reg */ 323 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 324 void __iomem *HSregaddr; /* virtual address for host status 325 reg */ 326 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 327 328 int brd_no; /* FC board number */ 329 330 char SerialNumber[32]; /* adapter Serial Number */ 331 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 332 char ModelDesc[256]; /* Model Description */ 333 char ModelName[80]; /* Model Name */ 334 char ProgramType[256]; /* Program Type */ 335 char Port[20]; /* Port No */ 336 uint8_t vpd_flag; /* VPD data flag */ 337 338 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 339 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 340 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 341 #define VPD_PORT 0x8 /* valid vpd port data */ 342 #define VPD_MASK 0xf /* mask for any vpd data */ 343 344 struct timer_list els_tmofunc; 345 346 void *link_stats; 347 348 /* 349 * stat counters 350 */ 351 uint64_t fc4InputRequests; 352 uint64_t fc4OutputRequests; 353 uint64_t fc4ControlRequests; 354 355 struct lpfc_sysfs_mbox sysfs_mbox; 356 357 /* fastpath list. */ 358 struct list_head lpfc_scsi_buf_list; 359 uint32_t total_scsi_bufs; 360 struct list_head lpfc_iocb_list; 361 uint32_t total_iocbq_bufs; 362 363 /* pci_mem_pools */ 364 struct pci_pool *lpfc_scsi_dma_buf_pool; 365 struct pci_pool *lpfc_mbuf_pool; 366 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 367 368 mempool_t *mbox_mem_pool; 369 mempool_t *nlp_mem_pool; 370 struct list_head freebufList; 371 struct list_head ctrspbuflist; 372 struct list_head rnidrspbuflist; 373 }; 374 375 376 struct rnidrsp { 377 void *buf; 378 uint32_t uniqueid; 379 struct list_head list; 380 uint32_t data; 381 }; 382