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 3 /* 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 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 36 37 /* Define macros for 64 bit support */ 38 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 39 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 40 #define getPaddr(high, low) ((dma_addr_t)( \ 41 (( (u64)(high)<<16 ) << 16)|( (u64)(low)))) 42 /* Provide maximum configuration definitions. */ 43 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */ 44 #define MAX_FCP_TARGET 256 /* max num of FCP targets supported */ 45 #define FC_MAX_ADPTMSG 64 46 47 #define MAX_HBAEVT 32 48 49 enum lpfc_polling_flags { 50 ENABLE_FCP_RING_POLLING = 0x1, 51 DISABLE_FCP_RING_INT = 0x2 52 }; 53 54 /* Provide DMA memory definitions the driver uses per port instance. */ 55 struct lpfc_dmabuf { 56 struct list_head list; 57 void *virt; /* virtual address ptr */ 58 dma_addr_t phys; /* mapped address */ 59 }; 60 61 struct lpfc_dma_pool { 62 struct lpfc_dmabuf *elements; 63 uint32_t max_count; 64 uint32_t current_count; 65 }; 66 67 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */ 68 #define MEM_PRI 0x100 69 70 71 /****************************************************************************/ 72 /* Device VPD save area */ 73 /****************************************************************************/ 74 typedef struct lpfc_vpd { 75 uint32_t status; /* vpd status value */ 76 uint32_t length; /* number of bytes actually returned */ 77 struct { 78 uint32_t rsvd1; /* Revision numbers */ 79 uint32_t biuRev; 80 uint32_t smRev; 81 uint32_t smFwRev; 82 uint32_t endecRev; 83 uint16_t rBit; 84 uint8_t fcphHigh; 85 uint8_t fcphLow; 86 uint8_t feaLevelHigh; 87 uint8_t feaLevelLow; 88 uint32_t postKernRev; 89 uint32_t opFwRev; 90 uint8_t opFwName[16]; 91 uint32_t sli1FwRev; 92 uint8_t sli1FwName[16]; 93 uint32_t sli2FwRev; 94 uint8_t sli2FwName[16]; 95 } rev; 96 } lpfc_vpd_t; 97 98 struct lpfc_scsi_buf; 99 100 101 /* 102 * lpfc stat counters 103 */ 104 struct lpfc_stats { 105 /* Statistics for ELS commands */ 106 uint32_t elsLogiCol; 107 uint32_t elsRetryExceeded; 108 uint32_t elsXmitRetry; 109 uint32_t elsDelayRetry; 110 uint32_t elsRcvDrop; 111 uint32_t elsRcvFrame; 112 uint32_t elsRcvRSCN; 113 uint32_t elsRcvRNID; 114 uint32_t elsRcvFARP; 115 uint32_t elsRcvFARPR; 116 uint32_t elsRcvFLOGI; 117 uint32_t elsRcvPLOGI; 118 uint32_t elsRcvADISC; 119 uint32_t elsRcvPDISC; 120 uint32_t elsRcvFAN; 121 uint32_t elsRcvLOGO; 122 uint32_t elsRcvPRLO; 123 uint32_t elsRcvPRLI; 124 uint32_t elsRcvRRQ; 125 uint32_t elsXmitFLOGI; 126 uint32_t elsXmitPLOGI; 127 uint32_t elsXmitPRLI; 128 uint32_t elsXmitADISC; 129 uint32_t elsXmitLOGO; 130 uint32_t elsXmitSCR; 131 uint32_t elsXmitRNID; 132 uint32_t elsXmitFARP; 133 uint32_t elsXmitFARPR; 134 uint32_t elsXmitACC; 135 uint32_t elsXmitLSRJT; 136 137 uint32_t frameRcvBcast; 138 uint32_t frameRcvMulti; 139 uint32_t strayXmitCmpl; 140 uint32_t frameXmitDelay; 141 uint32_t xriCmdCmpl; 142 uint32_t xriStatErr; 143 uint32_t LinkUp; 144 uint32_t LinkDown; 145 uint32_t LinkMultiEvent; 146 uint32_t NoRcvBuf; 147 uint32_t fcpCmd; 148 uint32_t fcpCmpl; 149 uint32_t fcpRspErr; 150 uint32_t fcpRemoteStop; 151 uint32_t fcpPortRjt; 152 uint32_t fcpPortBusy; 153 uint32_t fcpError; 154 uint32_t fcpLocalErr; 155 }; 156 157 enum sysfs_mbox_state { 158 SMBOX_IDLE, 159 SMBOX_WRITING, 160 SMBOX_READING 161 }; 162 163 struct lpfc_sysfs_mbox { 164 enum sysfs_mbox_state state; 165 size_t offset; 166 struct lpfcMboxq * mbox; 167 }; 168 169 struct lpfc_hba { 170 struct list_head hba_list; /* List of hbas/ports */ 171 struct lpfc_sli sli; 172 struct lpfc_sli2_slim *slim2p; 173 dma_addr_t slim2p_mapping; 174 uint16_t pci_cfg_value; 175 176 struct semaphore hba_can_block; 177 uint32_t hba_state; 178 179 #define LPFC_INIT_START 1 /* Initial state after board reset */ 180 #define LPFC_INIT_MBX_CMDS 2 /* Initialize HBA with mbox commands */ 181 #define LPFC_LINK_DOWN 3 /* HBA initialized, link is down */ 182 #define LPFC_LINK_UP 4 /* Link is up - issue READ_LA */ 183 #define LPFC_LOCAL_CFG_LINK 5 /* local NPORT Id configured */ 184 #define LPFC_FLOGI 6 /* FLOGI sent to Fabric */ 185 #define LPFC_FABRIC_CFG_LINK 7 /* Fabric assigned NPORT Id 186 configured */ 187 #define LPFC_NS_REG 8 /* Register with NameServer */ 188 #define LPFC_NS_QRY 9 /* Query NameServer for NPort ID list */ 189 #define LPFC_BUILD_DISC_LIST 10 /* Build ADISC and PLOGI lists for 190 * device authentication / discovery */ 191 #define LPFC_DISC_AUTH 11 /* Processing ADISC list */ 192 #define LPFC_CLEAR_LA 12 /* authentication cmplt - issue 193 CLEAR_LA */ 194 #define LPFC_HBA_READY 32 195 #define LPFC_HBA_ERROR 0xff 196 197 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_LOADING 0x1000 /* HBA in process of loading drvr */ 244 #define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */ 245 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */ 246 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */ 247 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */ 248 249 uint32_t fc_topology; /* link topology, from LINK INIT */ 250 251 struct lpfc_stats fc_stat; 252 253 /* These are the head/tail pointers for the bind, plogi, adisc, unmap, 254 * and map lists. Their counters are immediately following. 255 */ 256 struct list_head fc_plogi_list; 257 struct list_head fc_adisc_list; 258 struct list_head fc_reglogin_list; 259 struct list_head fc_prli_list; 260 struct list_head fc_nlpunmap_list; 261 struct list_head fc_nlpmap_list; 262 struct list_head fc_npr_list; 263 struct list_head fc_unused_list; 264 265 /* Keep counters for the number of entries in each list. */ 266 uint16_t fc_plogi_cnt; 267 uint16_t fc_adisc_cnt; 268 uint16_t fc_reglogin_cnt; 269 uint16_t fc_prli_cnt; 270 uint16_t fc_unmap_cnt; 271 uint16_t fc_map_cnt; 272 uint16_t fc_npr_cnt; 273 uint16_t fc_unused_cnt; 274 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */ 275 uint32_t nport_event_cnt; /* timestamp for nlplist entry */ 276 277 uint32_t wwnn[2]; 278 uint32_t RandomData[7]; 279 280 uint32_t cfg_log_verbose; 281 uint32_t cfg_lun_queue_depth; 282 uint32_t cfg_nodev_tmo; 283 uint32_t cfg_hba_queue_depth; 284 uint32_t cfg_fcp_class; 285 uint32_t cfg_use_adisc; 286 uint32_t cfg_ack0; 287 uint32_t cfg_topology; 288 uint32_t cfg_scan_down; 289 uint32_t cfg_link_speed; 290 uint32_t cfg_cr_delay; 291 uint32_t cfg_cr_count; 292 uint32_t cfg_fdmi_on; 293 uint32_t cfg_fcp_bind_method; 294 uint32_t cfg_discovery_threads; 295 uint32_t cfg_max_luns; 296 uint32_t cfg_poll; 297 uint32_t cfg_poll_tmo; 298 uint32_t cfg_sg_seg_cnt; 299 uint32_t cfg_sg_dma_buf_size; 300 301 lpfc_vpd_t vpd; /* vital product data */ 302 303 struct Scsi_Host *host; 304 struct pci_dev *pcidev; 305 struct list_head work_list; 306 uint32_t work_ha; /* Host Attention Bits for WT */ 307 uint32_t work_ha_mask; /* HA Bits owned by WT */ 308 uint32_t work_hs; /* HS stored in case of ERRAT */ 309 uint32_t work_status[2]; /* Extra status from SLIM */ 310 uint32_t work_hba_events; /* Timeout to be handled */ 311 #define WORKER_DISC_TMO 0x1 /* Discovery timeout */ 312 #define WORKER_ELS_TMO 0x2 /* ELS timeout */ 313 #define WORKER_MBOX_TMO 0x4 /* MBOX timeout */ 314 #define WORKER_FDMI_TMO 0x8 /* FDMI timeout */ 315 316 wait_queue_head_t *work_wait; 317 struct task_struct *worker_thread; 318 319 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */ 320 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */ 321 void __iomem *slim_memmap_p; /* Kernel memory mapped address for 322 PCI BAR0 */ 323 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for 324 PCI BAR2 */ 325 326 void __iomem *MBslimaddr; /* virtual address for mbox cmds */ 327 void __iomem *HAregaddr; /* virtual address for host attn reg */ 328 void __iomem *CAregaddr; /* virtual address for chip attn reg */ 329 void __iomem *HSregaddr; /* virtual address for host status 330 reg */ 331 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 332 333 int brd_no; /* FC board number */ 334 335 char SerialNumber[32]; /* adapter Serial Number */ 336 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */ 337 char ModelDesc[256]; /* Model Description */ 338 char ModelName[80]; /* Model Name */ 339 char ProgramType[256]; /* Program Type */ 340 char Port[20]; /* Port No */ 341 uint8_t vpd_flag; /* VPD data flag */ 342 343 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */ 344 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */ 345 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */ 346 #define VPD_PORT 0x8 /* valid vpd port data */ 347 #define VPD_MASK 0xf /* mask for any vpd data */ 348 349 struct timer_list fcp_poll_timer; 350 struct timer_list els_tmofunc; 351 352 /* 353 * stat counters 354 */ 355 uint64_t fc4InputRequests; 356 uint64_t fc4OutputRequests; 357 uint64_t fc4ControlRequests; 358 359 struct lpfc_sysfs_mbox sysfs_mbox; 360 361 /* fastpath list. */ 362 spinlock_t scsi_buf_list_lock; 363 struct list_head lpfc_scsi_buf_list; 364 uint32_t total_scsi_bufs; 365 struct list_head lpfc_iocb_list; 366 uint32_t total_iocbq_bufs; 367 368 /* pci_mem_pools */ 369 struct pci_pool *lpfc_scsi_dma_buf_pool; 370 struct pci_pool *lpfc_mbuf_pool; 371 struct lpfc_dma_pool lpfc_mbuf_safety_pool; 372 373 mempool_t *mbox_mem_pool; 374 mempool_t *nlp_mem_pool; 375 struct list_head freebufList; 376 struct list_head ctrspbuflist; 377 struct list_head rnidrspbuflist; 378 379 struct fc_host_statistics link_stats; 380 }; 381 382 383 struct rnidrsp { 384 void *buf; 385 uint32_t uniqueid; 386 struct list_head list; 387 uint32_t data; 388 }; 389