1#ifndef __MEGARAID_H__ 2#define __MEGARAID_H__ 3 4#include <linux/spinlock.h> 5#include <linux/mutex.h> 6 7#define MEGARAID_VERSION \ 8 "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" 9 10/* 11 * Driver features - change the values to enable or disable features in the 12 * driver. 13 */ 14 15/* 16 * Command coalescing - This feature allows the driver to be able to combine 17 * two or more commands and issue as one command in order to boost I/O 18 * performance. Useful if the nature of the I/O is sequential. It is not very 19 * useful for random natured I/Os. 20 */ 21#define MEGA_HAVE_COALESCING 0 22 23/* 24 * Clustering support - Set this flag if you are planning to use the 25 * clustering services provided by the megaraid controllers and planning to 26 * setup a cluster 27 */ 28#define MEGA_HAVE_CLUSTERING 1 29 30/* 31 * Driver statistics - Set this flag if you are interested in statics about 32 * number of I/O completed on each logical drive and how many interrupts 33 * generated. If enabled, this information is available through /proc 34 * interface and through the private ioctl. Setting this flag has a 35 * performance penalty. 36 */ 37#define MEGA_HAVE_STATS 0 38 39/* 40 * Enhanced /proc interface - This feature will allow you to have a more 41 * detailed /proc interface for megaraid driver. E.g., a real time update of 42 * the status of the logical drives, battery status, physical drives etc. 43 */ 44#define MEGA_HAVE_ENH_PROC 1 45 46#define MAX_DEV_TYPE 32 47 48#define PCI_DEVICE_ID_DISCOVERY 0x000E 49#define PCI_DEVICE_ID_PERC4_DI 0x000F 50#define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 51 52#define HBA_SIGNATURE 0x3344 53#define HBA_SIGNATURE_471 0xCCCC 54#define HBA_SIGNATURE_64BIT 0x0299 55 56#define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for 57 mailbox to be free */ 58#define DEFAULT_INITIATOR_ID 7 59 60#define MAX_SGLIST 64 /* max supported in f/w */ 61#define MIN_SGLIST 26 /* guaranteed to support these many */ 62#define MAX_COMMANDS 126 63#define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS 64 is less than max commands 65 supported by any f/w */ 66 67#define MAX_CDB_LEN 10 68#define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ 69 70#define DEF_CMD_PER_LUN 63 71#define MAX_CMD_PER_LUN MAX_COMMANDS 72#define MAX_FIRMWARE_STATUS 46 73#define MAX_XFER_PER_CMD (64*1024) 74#define MAX_SECTORS_PER_IO 128 75 76#define MAX_LOGICAL_DRIVES_40LD 40 77#define FC_MAX_PHYSICAL_DEVICES 256 78#define MAX_LOGICAL_DRIVES_8LD 8 79#define MAX_CHANNELS 5 80#define MAX_TARGET 15 81#define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET 82#define MAX_ROW_SIZE_40LD 32 83#define MAX_ROW_SIZE_8LD 8 84#define MAX_SPAN_DEPTH 8 85 86#define NVIRT_CHAN 4 /* # of virtual channels to represent 87 up to 60 logical drives */ 88struct mbox_out { 89 /* 0x0 */ u8 cmd; 90 /* 0x1 */ u8 cmdid; 91 /* 0x2 */ u16 numsectors; 92 /* 0x4 */ u32 lba; 93 /* 0x8 */ u32 xferaddr; 94 /* 0xC */ u8 logdrv; 95 /* 0xD */ u8 numsgelements; 96 /* 0xE */ u8 resvd; 97} __attribute__ ((packed)); 98 99struct mbox_in { 100 /* 0xF */ volatile u8 busy; 101 /* 0x10 */ volatile u8 numstatus; 102 /* 0x11 */ volatile u8 status; 103 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; 104 volatile u8 poll; 105 volatile u8 ack; 106} __attribute__ ((packed)); 107 108typedef struct { 109 struct mbox_out m_out; 110 struct mbox_in m_in; 111} __attribute__ ((packed)) mbox_t; 112 113typedef struct { 114 u32 xfer_segment_lo; 115 u32 xfer_segment_hi; 116 mbox_t mbox; 117} __attribute__ ((packed)) mbox64_t; 118 119 120/* 121 * Passthru definitions 122 */ 123#define MAX_REQ_SENSE_LEN 0x20 124 125typedef struct { 126 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 127 u8 ars:1; 128 u8 reserved:3; 129 u8 islogical:1; 130 u8 logdrv; /* if islogical == 1 */ 131 u8 channel; /* if islogical == 0 */ 132 u8 target; /* if islogical == 0 */ 133 u8 queuetag; /* unused */ 134 u8 queueaction; /* unused */ 135 u8 cdb[MAX_CDB_LEN]; 136 u8 cdblen; 137 u8 reqsenselen; 138 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 139 u8 numsgelements; 140 u8 scsistatus; 141 u32 dataxferaddr; 142 u32 dataxferlen; 143} __attribute__ ((packed)) mega_passthru; 144 145 146/* 147 * Extended passthru: support CDB > 10 bytes 148 */ 149typedef struct { 150 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 151 u8 ars:1; 152 u8 rsvd1:1; 153 u8 cd_rom:1; 154 u8 rsvd2:1; 155 u8 islogical:1; 156 u8 logdrv; /* if islogical == 1 */ 157 u8 channel; /* if islogical == 0 */ 158 u8 target; /* if islogical == 0 */ 159 u8 queuetag; /* unused */ 160 u8 queueaction; /* unused */ 161 u8 cdblen; 162 u8 rsvd3; 163 u8 cdb[MAX_EXT_CDB_LEN]; 164 u8 numsgelements; 165 u8 status; 166 u8 reqsenselen; 167 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 168 u8 rsvd4; 169 u32 dataxferaddr; 170 u32 dataxferlen; 171} __attribute__ ((packed)) mega_ext_passthru; 172 173typedef struct { 174 u64 address; 175 u32 length; 176} __attribute__ ((packed)) mega_sgl64; 177 178typedef struct { 179 u32 address; 180 u32 length; 181} __attribute__ ((packed)) mega_sglist; 182 183 184/* Queued command data */ 185typedef struct { 186 int idx; 187 u32 state; 188 struct list_head list; 189 u8 raw_mbox[66]; 190 u32 dma_type; 191 u32 dma_direction; 192 193 Scsi_Cmnd *cmd; 194 dma_addr_t dma_h_bulkdata; 195 dma_addr_t dma_h_sgdata; 196 197 mega_sglist *sgl; 198 mega_sgl64 *sgl64; 199 dma_addr_t sgl_dma_addr; 200 201 mega_passthru *pthru; 202 dma_addr_t pthru_dma_addr; 203 mega_ext_passthru *epthru; 204 dma_addr_t epthru_dma_addr; 205} scb_t; 206 207/* 208 * Flags to follow the scb as it transitions between various stages 209 */ 210#define SCB_FREE 0x0000 /* on the free list */ 211#define SCB_ACTIVE 0x0001 /* off the free list */ 212#define SCB_PENDQ 0x0002 /* on the pending queue */ 213#define SCB_ISSUED 0x0004 /* issued - owner f/w */ 214#define SCB_ABORT 0x0008 /* Got an abort for this one */ 215#define SCB_RESET 0x0010 /* Got a reset for this one */ 216 217/* 218 * Utilities declare this strcture size as 1024 bytes. So more fields can 219 * be added in future. 220 */ 221typedef struct { 222 u32 data_size; /* current size in bytes (not including resvd) */ 223 224 u32 config_signature; 225 /* Current value is 0x00282008 226 * 0x28=MAX_LOGICAL_DRIVES, 227 * 0x20=Number of stripes and 228 * 0x08=Number of spans */ 229 230 u8 fw_version[16]; /* printable ASCI string */ 231 u8 bios_version[16]; /* printable ASCI string */ 232 u8 product_name[80]; /* printable ASCI string */ 233 234 u8 max_commands; /* Max. concurrent commands supported */ 235 u8 nchannels; /* Number of SCSI Channels detected */ 236 u8 fc_loop_present; /* Number of Fibre Loops detected */ 237 u8 mem_type; /* EDO, FPM, SDRAM etc */ 238 239 u32 signature; 240 u16 dram_size; /* In terms of MB */ 241 u16 subsysid; 242 243 u16 subsysvid; 244 u8 notify_counters; 245 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ 246} __attribute__ ((packed)) mega_product_info; 247 248struct notify { 249 u32 global_counter; /* Any change increments this counter */ 250 251 u8 param_counter; /* Indicates any params changed */ 252 u8 param_id; /* Param modified - defined below */ 253 u16 param_val; /* New val of last param modified */ 254 255 u8 write_config_counter; /* write config occurred */ 256 u8 write_config_rsvd[3]; 257 258 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ 259 u8 ldrv_opid; /* ldrv num */ 260 u8 ldrv_opcmd; /* ldrv operation - defined below */ 261 u8 ldrv_opstatus; /* status of the operation */ 262 263 u8 ldrv_state_counter; /* Indicates change of ldrv state */ 264 u8 ldrv_state_id; /* ldrv num */ 265 u8 ldrv_state_new; /* New state */ 266 u8 ldrv_state_old; /* old state */ 267 268 u8 pdrv_state_counter; /* Indicates change of ldrv state */ 269 u8 pdrv_state_id; /* pdrv id */ 270 u8 pdrv_state_new; /* New state */ 271 u8 pdrv_state_old; /* old state */ 272 273 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ 274 u8 pdrv_fmt_id; /* pdrv id */ 275 u8 pdrv_fmt_val; /* format started/over */ 276 u8 pdrv_fmt_rsvd; 277 278 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ 279 u8 targ_xfer_id; /* pdrv Id */ 280 u8 targ_xfer_val; /* new Xfer params of last pdrv */ 281 u8 targ_xfer_rsvd; 282 283 u8 fcloop_id_chg_counter; /* Indicates loopid changed */ 284 u8 fcloopid_pdrvid; /* pdrv id */ 285 u8 fcloop_id0; /* loopid on fc loop 0 */ 286 u8 fcloop_id1; /* loopid on fc loop 1 */ 287 288 u8 fcloop_state_counter; /* Indicates loop state changed */ 289 u8 fcloop_state0; /* state of fc loop 0 */ 290 u8 fcloop_state1; /* state of fc loop 1 */ 291 u8 fcloop_state_rsvd; 292} __attribute__ ((packed)); 293 294#define MAX_NOTIFY_SIZE 0x80 295#define CUR_NOTIFY_SIZE sizeof(struct notify) 296 297typedef struct { 298 u32 data_size; /* current size in bytes (not including resvd) */ 299 300 struct notify notify; 301 302 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; 303 304 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ 305 u8 cache_flush_interval; /* In terms of Seconds */ 306 u8 sense_alert; 307 u8 drive_insert_count; /* drive insertion count */ 308 309 u8 battery_status; 310 u8 num_ldrv; /* No. of Log Drives configured */ 311 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of 312 reconstruct */ 313 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv 314 Status */ 315 316 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ 317 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; 318 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ 319 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ 320 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; 321 322 u8 targ_xfer[80]; /* phys device transfer rate */ 323 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ 324} __attribute__ ((packed)) mega_inquiry3; 325 326 327/* Structures */ 328typedef struct { 329 u8 max_commands; /* Max concurrent commands supported */ 330 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ 331 u8 max_targ_per_chan; /* Max targ per channel */ 332 u8 nchannels; /* Number of channels on HBA */ 333 u8 fw_version[4]; /* Firmware version */ 334 u16 age_of_flash; /* Number of times FW has been flashed */ 335 u8 chip_set_value; /* Contents of 0xC0000832 */ 336 u8 dram_size; /* In MB */ 337 u8 cache_flush_interval; /* in seconds */ 338 u8 bios_version[4]; 339 u8 board_type; 340 u8 sense_alert; 341 u8 write_config_count; /* Increase with every configuration 342 change */ 343 u8 drive_inserted_count; /* Increase with every drive inserted 344 */ 345 u8 inserted_drive; /* Channel:Id of inserted drive */ 346 u8 battery_status; /* 347 * BIT 0: battery module missing 348 * BIT 1: VBAD 349 * BIT 2: temperature high 350 * BIT 3: battery pack missing 351 * BIT 4,5: 352 * 00 - charge complete 353 * 01 - fast charge in progress 354 * 10 - fast charge fail 355 * 11 - undefined 356 * Bit 6: counter > 1000 357 * Bit 7: Undefined 358 */ 359 u8 dec_fault_bus_info; 360} __attribute__ ((packed)) mega_adp_info; 361 362 363typedef struct { 364 u8 num_ldrv; /* Number of logical drives configured */ 365 u8 rsvd[3]; 366 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; 367 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; 368 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; 369} __attribute__ ((packed)) mega_ldrv_info; 370 371typedef struct { 372 u8 pdrv_state[MAX_PHYSICAL_DRIVES]; 373 u8 rsvd; 374} __attribute__ ((packed)) mega_pdrv_info; 375 376/* RAID inquiry: Mailbox command 0x05*/ 377typedef struct { 378 mega_adp_info adapter_info; 379 mega_ldrv_info logdrv_info; 380 mega_pdrv_info pdrv_info; 381} __attribute__ ((packed)) mraid_inquiry; 382 383 384/* RAID extended inquiry: Mailbox command 0x04*/ 385typedef struct { 386 mraid_inquiry raid_inq; 387 u16 phys_drv_format[MAX_CHANNELS]; 388 u8 stack_attn; 389 u8 modem_status; 390 u8 rsvd[2]; 391} __attribute__ ((packed)) mraid_ext_inquiry; 392 393 394typedef struct { 395 u8 channel; 396 u8 target; 397}__attribute__ ((packed)) adp_device; 398 399typedef struct { 400 u32 start_blk; /* starting block */ 401 u32 num_blks; /* # of blocks */ 402 adp_device device[MAX_ROW_SIZE_40LD]; 403}__attribute__ ((packed)) adp_span_40ld; 404 405typedef struct { 406 u32 start_blk; /* starting block */ 407 u32 num_blks; /* # of blocks */ 408 adp_device device[MAX_ROW_SIZE_8LD]; 409}__attribute__ ((packed)) adp_span_8ld; 410 411typedef struct { 412 u8 span_depth; /* Total # of spans */ 413 u8 level; /* RAID level */ 414 u8 read_ahead; /* read ahead, no read ahead, adaptive read 415 ahead */ 416 u8 stripe_sz; /* Encoded stripe size */ 417 u8 status; /* Status of the logical drive */ 418 u8 write_mode; /* write mode, write_through/write_back */ 419 u8 direct_io; /* direct io or through cache */ 420 u8 row_size; /* Number of stripes in a row */ 421} __attribute__ ((packed)) logdrv_param; 422 423typedef struct { 424 logdrv_param lparam; 425 adp_span_40ld span[MAX_SPAN_DEPTH]; 426}__attribute__ ((packed)) logdrv_40ld; 427 428typedef struct { 429 logdrv_param lparam; 430 adp_span_8ld span[MAX_SPAN_DEPTH]; 431}__attribute__ ((packed)) logdrv_8ld; 432 433typedef struct { 434 u8 type; /* Type of the device */ 435 u8 cur_status; /* current status of the device */ 436 u8 tag_depth; /* Level of tagging */ 437 u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ 438 u32 size; /* configurable size in terms of 512 byte 439 blocks */ 440}__attribute__ ((packed)) phys_drv; 441 442typedef struct { 443 u8 nlog_drives; /* number of logical drives */ 444 u8 resvd[3]; 445 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; 446 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 447}__attribute__ ((packed)) disk_array_40ld; 448 449typedef struct { 450 u8 nlog_drives; /* number of logical drives */ 451 u8 resvd[3]; 452 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; 453 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 454}__attribute__ ((packed)) disk_array_8ld; 455 456 457/* 458 * User ioctl structure. 459 * This structure will be used for Traditional Method ioctl interface 460 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the 461 * Driver ioctls. 462 * The Driver ioctl interface handles the commands at the driver level, 463 * without being sent to the card. 464 */ 465/* system call imposed limit. Change accordingly */ 466#define IOCTL_MAX_DATALEN 4096 467 468struct uioctl_t { 469 u32 inlen; 470 u32 outlen; 471 union { 472 u8 fca[16]; 473 struct { 474 u8 opcode; 475 u8 subopcode; 476 u16 adapno; 477#if BITS_PER_LONG == 32 478 u8 *buffer; 479 u8 pad[4]; 480#endif 481#if BITS_PER_LONG == 64 482 u8 *buffer; 483#endif 484 u32 length; 485 } __attribute__ ((packed)) fcs; 486 } __attribute__ ((packed)) ui; 487 u8 mbox[18]; /* 16 bytes + 2 status bytes */ 488 mega_passthru pthru; 489#if BITS_PER_LONG == 32 490 char __user *data; /* buffer <= 4096 for 0x80 commands */ 491 char pad[4]; 492#endif 493#if BITS_PER_LONG == 64 494 char __user *data; 495#endif 496} __attribute__ ((packed)); 497 498/* 499 * struct mcontroller is used to pass information about the controllers in the 500 * system. Its up to the application how to use the information. We are passing 501 * as much info about the cards as possible and useful. Before issuing the 502 * call to find information about the cards, the application needs to issue a 503 * ioctl first to find out the number of controllers in the system. 504 */ 505#define MAX_CONTROLLERS 32 506 507struct mcontroller { 508 u64 base; 509 u8 irq; 510 u8 numldrv; 511 u8 pcibus; 512 u16 pcidev; 513 u8 pcifun; 514 u16 pciid; 515 u16 pcivendor; 516 u8 pcislot; 517 u32 uid; 518}; 519 520/* 521 * mailbox structure used for internal commands 522 */ 523typedef struct { 524 u8 cmd; 525 u8 cmdid; 526 u8 opcode; 527 u8 subopcode; 528 u32 lba; 529 u32 xferaddr; 530 u8 logdrv; 531 u8 rsvd[3]; 532 u8 numstatus; 533 u8 status; 534} __attribute__ ((packed)) megacmd_t; 535 536/* 537 * Defines for Driver IOCTL interface 538 */ 539#define MEGAIOC_MAGIC 'm' 540 541#define MEGAIOC_QNADAP 'm' /* Query # of adapters */ 542#define MEGAIOC_QDRVRVER 'e' /* Query driver version */ 543#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ 544#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) 545#define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) 546 547/* 548 * Definition for the new ioctl interface (NIT) 549 */ 550 551/* 552 * Vendor specific Group-7 commands 553 */ 554#define VENDOR_SPECIFIC_COMMANDS 0xE0 555#define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 556 557/* 558 * The ioctl command. No other command shall be used for this interface 559 */ 560#define USCSICMD VENDOR_SPECIFIC_COMMANDS 561 562/* 563 * Data direction flags 564 */ 565#define UIOC_RD 0x00001 566#define UIOC_WR 0x00002 567 568/* 569 * ioctl opcodes 570 */ 571#define MBOX_CMD 0x00000 /* DCMD or passthru command */ 572#define GET_DRIVER_VER 0x10000 /* Get driver version */ 573#define GET_N_ADAP 0x20000 /* Get number of adapters */ 574#define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ 575#define GET_CAP 0x40000 /* Get ioctl capabilities */ 576#define GET_STATS 0x50000 /* Get statistics, including error info */ 577 578 579/* 580 * The ioctl structure. 581 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and 582 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. 583 */ 584typedef struct { 585 char signature[8]; /* Must contain "MEGANIT" */ 586 u32 opcode; /* opcode for the command */ 587 u32 adapno; /* adapter number */ 588 union { 589 u8 __raw_mbox[18]; 590 void __user *__uaddr; /* xferaddr for non-mbox cmds */ 591 }__ua; 592 593#define uioc_rmbox __ua.__raw_mbox 594#define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) 595#define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) 596#define uioc_uaddr __ua.__uaddr 597 598 u32 xferlen; /* xferlen for DCMD and non-mbox 599 commands */ 600 u32 flags; /* data direction flags */ 601}nitioctl_t; 602 603 604/* 605 * I/O statistics for some applications like SNMP agent. The caller must 606 * provide the number of logical drives for which status should be reported. 607 */ 608typedef struct { 609 int num_ldrv; /* Number for logical drives for which the 610 status should be reported. */ 611 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for 612 each logical drive */ 613 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 614 read for each logical 615 drive */ 616 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes 617 for each logical 618 drive */ 619 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 620 writes for each 621 logical drive */ 622 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read 623 errors for each 624 logical drive */ 625 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write 626 errors for each 627 logical drive */ 628}megastat_t; 629 630 631struct private_bios_data { 632 u8 geometry:4; /* 633 * bits 0-3 - BIOS geometry 634 * 0x0001 - 1GB 635 * 0x0010 - 2GB 636 * 0x1000 - 8GB 637 * Others values are invalid 638 */ 639 u8 unused:4; /* bits 4-7 are unused */ 640 u8 boot_drv; /* 641 * logical drive set as boot drive 642 * 0..7 - for 8LD cards 643 * 0..39 - for 40LD cards 644 */ 645 u8 rsvd[12]; 646 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ 647} __attribute__ ((packed)); 648 649 650 651 652/* 653 * Mailbox and firmware commands and subopcodes used in this driver. 654 */ 655 656#define MEGA_MBOXCMD_LREAD 0x01 657#define MEGA_MBOXCMD_LWRITE 0x02 658#define MEGA_MBOXCMD_PASSTHRU 0x03 659#define MEGA_MBOXCMD_ADPEXTINQ 0x04 660#define MEGA_MBOXCMD_ADAPTERINQ 0x05 661#define MEGA_MBOXCMD_LREAD64 0xA7 662#define MEGA_MBOXCMD_LWRITE64 0xA8 663#define MEGA_MBOXCMD_PASSTHRU64 0xC3 664#define MEGA_MBOXCMD_EXTPTHRU 0xE3 665 666#define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ 667#define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ 668 669#define FC_NEW_CONFIG 0xA1 670#define NC_SUBOP_PRODUCT_INFO 0x0E 671#define NC_SUBOP_ENQUIRY3 0x0F 672#define ENQ3_GET_SOLICITED_FULL 0x02 673#define OP_DCMD_READ_CONFIG 0x04 674#define NEW_READ_CONFIG_8LD 0x67 675#define READ_CONFIG_8LD 0x07 676#define FLUSH_ADAPTER 0x0A 677#define FLUSH_SYSTEM 0xFE 678 679/* 680 * Command for random deletion of logical drives 681 */ 682#define FC_DEL_LOGDRV 0xA4 /* f/w command */ 683#define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ 684#define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ 685#define OP_DEL_LOGDRV 0x1C /* delete logical drive */ 686 687/* 688 * BIOS commands 689 */ 690#define IS_BIOS_ENABLED 0x62 691#define GET_BIOS 0x01 692#define CHNL_CLASS 0xA9 693#define GET_CHNL_CLASS 0x00 694#define SET_CHNL_CLASS 0x01 695#define CH_RAID 0x01 696#define CH_SCSI 0x00 697#define BIOS_PVT_DATA 0x40 698#define GET_BIOS_PVT_DATA 0x00 699 700 701/* 702 * Commands to support clustering 703 */ 704#define MEGA_GET_TARGET_ID 0x7D 705#define MEGA_CLUSTER_OP 0x70 706#define MEGA_GET_CLUSTER_MODE 0x02 707#define MEGA_CLUSTER_CMD 0x6E 708#define MEGA_RESERVE_LD 0x01 709#define MEGA_RELEASE_LD 0x02 710#define MEGA_RESET_RESERVATIONS 0x03 711#define MEGA_RESERVATION_STATUS 0x04 712#define MEGA_RESERVE_PD 0x05 713#define MEGA_RELEASE_PD 0x06 714 715 716/* 717 * Module battery status 718 */ 719#define MEGA_BATT_MODULE_MISSING 0x01 720#define MEGA_BATT_LOW_VOLTAGE 0x02 721#define MEGA_BATT_TEMP_HIGH 0x04 722#define MEGA_BATT_PACK_MISSING 0x08 723#define MEGA_BATT_CHARGE_MASK 0x30 724#define MEGA_BATT_CHARGE_DONE 0x00 725#define MEGA_BATT_CHARGE_INPROG 0x10 726#define MEGA_BATT_CHARGE_FAIL 0x20 727#define MEGA_BATT_CYCLES_EXCEEDED 0x40 728 729/* 730 * Physical drive states. 731 */ 732#define PDRV_UNCNF 0 733#define PDRV_ONLINE 3 734#define PDRV_FAILED 4 735#define PDRV_RBLD 5 736#define PDRV_HOTSPARE 6 737 738 739/* 740 * Raid logical drive states. 741 */ 742#define RDRV_OFFLINE 0 743#define RDRV_DEGRADED 1 744#define RDRV_OPTIMAL 2 745#define RDRV_DELETED 3 746 747/* 748 * Read, write and cache policies 749 */ 750#define NO_READ_AHEAD 0 751#define READ_AHEAD 1 752#define ADAP_READ_AHEAD 2 753#define WRMODE_WRITE_THRU 0 754#define WRMODE_WRITE_BACK 1 755#define CACHED_IO 0 756#define DIRECT_IO 1 757 758 759#define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) 760 761/* 762 * Each controller's soft state 763 */ 764typedef struct { 765 int this_id; /* our id, may set to different than 7 if 766 clustering is available */ 767 u32 flag; 768 769 unsigned long base; 770 void __iomem *mmio_base; 771 772 /* mbox64 with mbox not aligned on 16-byte boundary */ 773 mbox64_t *una_mbox64; 774 dma_addr_t una_mbox64_dma; 775 776 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ 777 volatile mbox_t *mbox; /* ptr to standard mailbox */ 778 dma_addr_t mbox_dma; 779 780 struct pci_dev *dev; 781 782 struct list_head free_list; 783 struct list_head pending_list; 784 struct list_head completed_list; 785 786 struct Scsi_Host *host; 787 788#define MEGA_BUFFER_SIZE (2*1024) 789 u8 *mega_buffer; 790 dma_addr_t buf_dma_handle; 791 792 mega_product_info product_info; 793 794 u8 max_cmds; 795 scb_t *scb_list; 796 797 atomic_t pend_cmds; /* maintain a counter for pending 798 commands in firmware */ 799 800#if MEGA_HAVE_STATS 801 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; 802 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; 803 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; 804 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; 805 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; 806 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; 807#endif 808 809 /* Host adapter parameters */ 810 u8 numldrv; 811 u8 fw_version[7]; 812 u8 bios_version[7]; 813 814#ifdef CONFIG_PROC_FS 815 struct proc_dir_entry *controller_proc_dir_entry; 816 struct proc_dir_entry *proc_read; 817 struct proc_dir_entry *proc_stat; 818 struct proc_dir_entry *proc_mbox; 819 820#if MEGA_HAVE_ENH_PROC 821 struct proc_dir_entry *proc_rr; 822 struct proc_dir_entry *proc_battery; 823#define MAX_PROC_CHANNELS 4 824 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS]; 825 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS]; 826#endif 827 828#endif 829 830 int has_64bit_addr; /* are we using 64-bit addressing */ 831 int support_ext_cdb; 832 int boot_ldrv_enabled; 833 int boot_ldrv; 834 int boot_pdrv_enabled; /* boot from physical drive */ 835 int boot_pdrv_ch; /* boot physical drive channel */ 836 int boot_pdrv_tgt; /* boot physical drive target */ 837 838 839 int support_random_del; /* Do we support random deletion of 840 logdrvs */ 841 int read_ldidmap; /* set after logical drive deltion. The 842 logical drive number must be read from the 843 map */ 844 atomic_t quiescent; /* a stage reached when delete logical 845 drive needs to be done. Stop 846 sending requests to the hba till 847 delete operation is completed */ 848 spinlock_t lock; 849 850 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on 851 what channels. */ 852 int mega_ch_class; 853 854 u8 sglen; /* f/w supported scatter-gather list length */ 855 856 scb_t int_scb; 857 struct mutex int_mtx; /* To synchronize the internal 858 commands */ 859 int int_status; /* status of internal cmd */ 860 struct completion int_waitq; /* wait queue for internal 861 cmds */ 862 863 int has_cluster; /* cluster support on this HBA */ 864}adapter_t; 865 866 867struct mega_hbas { 868 int is_bios_enabled; 869 adapter_t *hostdata_addr; 870}; 871 872 873/* 874 * For state flag. Do not use LSB(8 bits) which are 875 * reserved for storing info about channels. 876 */ 877#define IN_ABORT 0x80000000L 878#define IN_RESET 0x40000000L 879#define BOARD_MEMMAP 0x20000000L 880#define BOARD_IOMAP 0x10000000L 881#define BOARD_40LD 0x08000000L 882#define BOARD_64BIT 0x04000000L 883 884#define INTR_VALID 0x40 885 886#define PCI_CONF_AMISIG 0xa0 887#define PCI_CONF_AMISIG64 0xa4 888 889 890#define MEGA_DMA_TYPE_NONE 0xFFFF 891#define MEGA_BULK_DATA 0x0001 892#define MEGA_SGLIST 0x0002 893 894/* 895 * Parameters for the io-mapped controllers 896 */ 897 898/* I/O Port offsets */ 899#define CMD_PORT 0x00 900#define ACK_PORT 0x00 901#define TOGGLE_PORT 0x01 902#define INTR_PORT 0x0a 903 904#define MBOX_BUSY_PORT 0x00 905#define MBOX_PORT0 0x04 906#define MBOX_PORT1 0x05 907#define MBOX_PORT2 0x06 908#define MBOX_PORT3 0x07 909#define ENABLE_MBOX_REGION 0x0B 910 911/* I/O Port Values */ 912#define ISSUE_BYTE 0x10 913#define ACK_BYTE 0x08 914#define ENABLE_INTR_BYTE 0xc0 915#define DISABLE_INTR_BYTE 0x00 916#define VALID_INTR_BYTE 0x40 917#define MBOX_BUSY_BYTE 0x10 918#define ENABLE_MBOX_BYTE 0x00 919 920 921/* Setup some port macros here */ 922#define issue_command(adapter) \ 923 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) 924 925#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) 926 927#define set_irq_state(adapter, value) \ 928 outb_p((value), (adapter)->base + INTR_PORT) 929 930#define irq_ack(adapter) \ 931 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) 932 933#define irq_enable(adapter) \ 934 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 935 936#define irq_disable(adapter) \ 937 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 938 939 940/* 941 * This is our SYSDEP area. All kernel specific detail should be placed here - 942 * as much as possible 943 */ 944 945/* 946 * End of SYSDEP area 947 */ 948 949const char *megaraid_info (struct Scsi_Host *); 950 951static int mega_query_adapter(adapter_t *); 952static int issue_scb(adapter_t *, scb_t *); 953static int mega_setup_mailbox(adapter_t *); 954 955static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); 956static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *); 957static void __mega_runpendq(adapter_t *); 958static int issue_scb_block(adapter_t *, u_char *); 959 960static irqreturn_t megaraid_isr_memmapped(int, void *); 961static irqreturn_t megaraid_isr_iomapped(int, void *); 962 963static void mega_free_scb(adapter_t *, scb_t *); 964 965static int megaraid_abort(Scsi_Cmnd *); 966static int megaraid_reset(Scsi_Cmnd *); 967static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int); 968static int megaraid_biosparam(struct scsi_device *, struct block_device *, 969 sector_t, int []); 970 971static int mega_build_sglist (adapter_t *adapter, scb_t *scb, 972 u32 *buffer, u32 *length); 973static int __mega_busywait_mbox (adapter_t *); 974static void mega_rundoneq (adapter_t *); 975static void mega_cmd_done(adapter_t *, u8 [], int, int); 976static inline void mega_free_sgl (adapter_t *adapter); 977static void mega_8_to_40ld (mraid_inquiry *inquiry, 978 mega_inquiry3 *enquiry3, mega_product_info *); 979 980static int megadev_open (struct inode *, struct file *); 981static int megadev_ioctl (struct file *, unsigned int, unsigned long); 982static int mega_m_to_n(void __user *, nitioctl_t *); 983static int mega_n_to_m(void __user *, megacmd_t *); 984 985static int mega_init_scb (adapter_t *); 986 987static int mega_is_bios_enabled (adapter_t *); 988 989#ifdef CONFIG_PROC_FS 990static void mega_create_proc_entry(int, struct proc_dir_entry *); 991static int mega_adapinq(adapter_t *, dma_addr_t); 992static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); 993#endif 994 995static int mega_support_ext_cdb(adapter_t *); 996static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, 997 Scsi_Cmnd *, int, int); 998static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, 999 scb_t *, Scsi_Cmnd *, int, int); 1000static void mega_enum_raid_scsi(adapter_t *); 1001static void mega_get_boot_drv(adapter_t *); 1002static int mega_support_random_del(adapter_t *); 1003static int mega_del_logdrv(adapter_t *, int); 1004static int mega_do_del_logdrv(adapter_t *, int); 1005static void mega_get_max_sgl(adapter_t *); 1006static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); 1007static int mega_support_cluster(adapter_t *); 1008#endif 1009 1010/* vi: set ts=8 sw=8 tw=78: */ 1011