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 * Comand 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#ifndef PCI_VENDOR_ID_LSI_LOGIC 49#define PCI_VENDOR_ID_LSI_LOGIC 0x1000 50#endif 51 52#ifndef PCI_VENDOR_ID_AMI 53#define PCI_VENDOR_ID_AMI 0x101E 54#endif 55 56#ifndef PCI_VENDOR_ID_DELL 57#define PCI_VENDOR_ID_DELL 0x1028 58#endif 59 60#ifndef PCI_VENDOR_ID_INTEL 61#define PCI_VENDOR_ID_INTEL 0x8086 62#endif 63 64#ifndef PCI_DEVICE_ID_AMI_MEGARAID 65#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010 66#endif 67 68#ifndef PCI_DEVICE_ID_AMI_MEGARAID2 69#define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060 70#endif 71 72#ifndef PCI_DEVICE_ID_AMI_MEGARAID3 73#define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960 74#endif 75 76#define PCI_DEVICE_ID_DISCOVERY 0x000E 77#define PCI_DEVICE_ID_PERC4_DI 0x000F 78#define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 79 80/* Sub-System Vendor IDs */ 81#define AMI_SUBSYS_VID 0x101E 82#define DELL_SUBSYS_VID 0x1028 83#define HP_SUBSYS_VID 0x103C 84#define LSI_SUBSYS_VID 0x1000 85#define INTEL_SUBSYS_VID 0x8086 86 87#define HBA_SIGNATURE 0x3344 88#define HBA_SIGNATURE_471 0xCCCC 89#define HBA_SIGNATURE_64BIT 0x0299 90 91#define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for 92 mailbox to be free */ 93#define DEFAULT_INITIATOR_ID 7 94 95#define MAX_SGLIST 64 /* max supported in f/w */ 96#define MIN_SGLIST 26 /* guaranteed to support these many */ 97#define MAX_COMMANDS 126 98#define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS 99 is less than max commands 100 supported by any f/w */ 101 102#define MAX_CDB_LEN 10 103#define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ 104 105#define DEF_CMD_PER_LUN 63 106#define MAX_CMD_PER_LUN MAX_COMMANDS 107#define MAX_FIRMWARE_STATUS 46 108#define MAX_XFER_PER_CMD (64*1024) 109#define MAX_SECTORS_PER_IO 128 110 111#define MAX_LOGICAL_DRIVES_40LD 40 112#define FC_MAX_PHYSICAL_DEVICES 256 113#define MAX_LOGICAL_DRIVES_8LD 8 114#define MAX_CHANNELS 5 115#define MAX_TARGET 15 116#define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET 117#define MAX_ROW_SIZE_40LD 32 118#define MAX_ROW_SIZE_8LD 8 119#define MAX_SPAN_DEPTH 8 120 121#define NVIRT_CHAN 4 /* # of virtual channels to represent 122 up to 60 logical drives */ 123struct mbox_out { 124 /* 0x0 */ u8 cmd; 125 /* 0x1 */ u8 cmdid; 126 /* 0x2 */ u16 numsectors; 127 /* 0x4 */ u32 lba; 128 /* 0x8 */ u32 xferaddr; 129 /* 0xC */ u8 logdrv; 130 /* 0xD */ u8 numsgelements; 131 /* 0xE */ u8 resvd; 132} __attribute__ ((packed)); 133 134struct mbox_in { 135 /* 0xF */ volatile u8 busy; 136 /* 0x10 */ volatile u8 numstatus; 137 /* 0x11 */ volatile u8 status; 138 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; 139 volatile u8 poll; 140 volatile u8 ack; 141} __attribute__ ((packed)); 142 143typedef struct { 144 struct mbox_out m_out; 145 struct mbox_in m_in; 146} __attribute__ ((packed)) mbox_t; 147 148typedef struct { 149 u32 xfer_segment_lo; 150 u32 xfer_segment_hi; 151 mbox_t mbox; 152} __attribute__ ((packed)) mbox64_t; 153 154 155/* 156 * Passthru definitions 157 */ 158#define MAX_REQ_SENSE_LEN 0x20 159 160typedef struct { 161 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 162 u8 ars:1; 163 u8 reserved:3; 164 u8 islogical:1; 165 u8 logdrv; /* if islogical == 1 */ 166 u8 channel; /* if islogical == 0 */ 167 u8 target; /* if islogical == 0 */ 168 u8 queuetag; /* unused */ 169 u8 queueaction; /* unused */ 170 u8 cdb[MAX_CDB_LEN]; 171 u8 cdblen; 172 u8 reqsenselen; 173 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 174 u8 numsgelements; 175 u8 scsistatus; 176 u32 dataxferaddr; 177 u32 dataxferlen; 178} __attribute__ ((packed)) mega_passthru; 179 180 181/* 182 * Extended passthru: support CDB > 10 bytes 183 */ 184typedef struct { 185 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 186 u8 ars:1; 187 u8 rsvd1:1; 188 u8 cd_rom:1; 189 u8 rsvd2:1; 190 u8 islogical:1; 191 u8 logdrv; /* if islogical == 1 */ 192 u8 channel; /* if islogical == 0 */ 193 u8 target; /* if islogical == 0 */ 194 u8 queuetag; /* unused */ 195 u8 queueaction; /* unused */ 196 u8 cdblen; 197 u8 rsvd3; 198 u8 cdb[MAX_EXT_CDB_LEN]; 199 u8 numsgelements; 200 u8 status; 201 u8 reqsenselen; 202 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 203 u8 rsvd4; 204 u32 dataxferaddr; 205 u32 dataxferlen; 206} __attribute__ ((packed)) mega_ext_passthru; 207 208typedef struct { 209 u64 address; 210 u32 length; 211} __attribute__ ((packed)) mega_sgl64; 212 213typedef struct { 214 u32 address; 215 u32 length; 216} __attribute__ ((packed)) mega_sglist; 217 218 219/* Queued command data */ 220typedef struct { 221 int idx; 222 u32 state; 223 struct list_head list; 224 u8 raw_mbox[66]; 225 u32 dma_type; 226 u32 dma_direction; 227 228 Scsi_Cmnd *cmd; 229 dma_addr_t dma_h_bulkdata; 230 dma_addr_t dma_h_sgdata; 231 232 mega_sglist *sgl; 233 mega_sgl64 *sgl64; 234 dma_addr_t sgl_dma_addr; 235 236 mega_passthru *pthru; 237 dma_addr_t pthru_dma_addr; 238 mega_ext_passthru *epthru; 239 dma_addr_t epthru_dma_addr; 240} scb_t; 241 242/* 243 * Flags to follow the scb as it transitions between various stages 244 */ 245#define SCB_FREE 0x0000 /* on the free list */ 246#define SCB_ACTIVE 0x0001 /* off the free list */ 247#define SCB_PENDQ 0x0002 /* on the pending queue */ 248#define SCB_ISSUED 0x0004 /* issued - owner f/w */ 249#define SCB_ABORT 0x0008 /* Got an abort for this one */ 250#define SCB_RESET 0x0010 /* Got a reset for this one */ 251 252/* 253 * Utilities declare this strcture size as 1024 bytes. So more fields can 254 * be added in future. 255 */ 256typedef struct { 257 u32 data_size; /* current size in bytes (not including resvd) */ 258 259 u32 config_signature; 260 /* Current value is 0x00282008 261 * 0x28=MAX_LOGICAL_DRIVES, 262 * 0x20=Number of stripes and 263 * 0x08=Number of spans */ 264 265 u8 fw_version[16]; /* printable ASCI string */ 266 u8 bios_version[16]; /* printable ASCI string */ 267 u8 product_name[80]; /* printable ASCI string */ 268 269 u8 max_commands; /* Max. concurrent commands supported */ 270 u8 nchannels; /* Number of SCSI Channels detected */ 271 u8 fc_loop_present; /* Number of Fibre Loops detected */ 272 u8 mem_type; /* EDO, FPM, SDRAM etc */ 273 274 u32 signature; 275 u16 dram_size; /* In terms of MB */ 276 u16 subsysid; 277 278 u16 subsysvid; 279 u8 notify_counters; 280 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ 281} __attribute__ ((packed)) mega_product_info; 282 283struct notify { 284 u32 global_counter; /* Any change increments this counter */ 285 286 u8 param_counter; /* Indicates any params changed */ 287 u8 param_id; /* Param modified - defined below */ 288 u16 param_val; /* New val of last param modified */ 289 290 u8 write_config_counter; /* write config occurred */ 291 u8 write_config_rsvd[3]; 292 293 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ 294 u8 ldrv_opid; /* ldrv num */ 295 u8 ldrv_opcmd; /* ldrv operation - defined below */ 296 u8 ldrv_opstatus; /* status of the operation */ 297 298 u8 ldrv_state_counter; /* Indicates change of ldrv state */ 299 u8 ldrv_state_id; /* ldrv num */ 300 u8 ldrv_state_new; /* New state */ 301 u8 ldrv_state_old; /* old state */ 302 303 u8 pdrv_state_counter; /* Indicates change of ldrv state */ 304 u8 pdrv_state_id; /* pdrv id */ 305 u8 pdrv_state_new; /* New state */ 306 u8 pdrv_state_old; /* old state */ 307 308 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ 309 u8 pdrv_fmt_id; /* pdrv id */ 310 u8 pdrv_fmt_val; /* format started/over */ 311 u8 pdrv_fmt_rsvd; 312 313 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ 314 u8 targ_xfer_id; /* pdrv Id */ 315 u8 targ_xfer_val; /* new Xfer params of last pdrv */ 316 u8 targ_xfer_rsvd; 317 318 u8 fcloop_id_chg_counter; /* Indicates loopid changed */ 319 u8 fcloopid_pdrvid; /* pdrv id */ 320 u8 fcloop_id0; /* loopid on fc loop 0 */ 321 u8 fcloop_id1; /* loopid on fc loop 1 */ 322 323 u8 fcloop_state_counter; /* Indicates loop state changed */ 324 u8 fcloop_state0; /* state of fc loop 0 */ 325 u8 fcloop_state1; /* state of fc loop 1 */ 326 u8 fcloop_state_rsvd; 327} __attribute__ ((packed)); 328 329#define MAX_NOTIFY_SIZE 0x80 330#define CUR_NOTIFY_SIZE sizeof(struct notify) 331 332typedef struct { 333 u32 data_size; /* current size in bytes (not including resvd) */ 334 335 struct notify notify; 336 337 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; 338 339 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ 340 u8 cache_flush_interval; /* In terms of Seconds */ 341 u8 sense_alert; 342 u8 drive_insert_count; /* drive insertion count */ 343 344 u8 battery_status; 345 u8 num_ldrv; /* No. of Log Drives configured */ 346 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of 347 reconstruct */ 348 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv 349 Status */ 350 351 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ 352 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; 353 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ 354 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ 355 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; 356 357 u8 targ_xfer[80]; /* phys device transfer rate */ 358 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ 359} __attribute__ ((packed)) mega_inquiry3; 360 361 362/* Structures */ 363typedef struct { 364 u8 max_commands; /* Max concurrent commands supported */ 365 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ 366 u8 max_targ_per_chan; /* Max targ per channel */ 367 u8 nchannels; /* Number of channels on HBA */ 368 u8 fw_version[4]; /* Firmware version */ 369 u16 age_of_flash; /* Number of times FW has been flashed */ 370 u8 chip_set_value; /* Contents of 0xC0000832 */ 371 u8 dram_size; /* In MB */ 372 u8 cache_flush_interval; /* in seconds */ 373 u8 bios_version[4]; 374 u8 board_type; 375 u8 sense_alert; 376 u8 write_config_count; /* Increase with every configuration 377 change */ 378 u8 drive_inserted_count; /* Increase with every drive inserted 379 */ 380 u8 inserted_drive; /* Channel:Id of inserted drive */ 381 u8 battery_status; /* 382 * BIT 0: battery module missing 383 * BIT 1: VBAD 384 * BIT 2: temprature high 385 * BIT 3: battery pack missing 386 * BIT 4,5: 387 * 00 - charge complete 388 * 01 - fast charge in progress 389 * 10 - fast charge fail 390 * 11 - undefined 391 * Bit 6: counter > 1000 392 * Bit 7: Undefined 393 */ 394 u8 dec_fault_bus_info; 395} __attribute__ ((packed)) mega_adp_info; 396 397 398typedef struct { 399 u8 num_ldrv; /* Number of logical drives configured */ 400 u8 rsvd[3]; 401 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; 402 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; 403 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; 404} __attribute__ ((packed)) mega_ldrv_info; 405 406typedef struct { 407 u8 pdrv_state[MAX_PHYSICAL_DRIVES]; 408 u8 rsvd; 409} __attribute__ ((packed)) mega_pdrv_info; 410 411/* RAID inquiry: Mailbox command 0x05*/ 412typedef struct { 413 mega_adp_info adapter_info; 414 mega_ldrv_info logdrv_info; 415 mega_pdrv_info pdrv_info; 416} __attribute__ ((packed)) mraid_inquiry; 417 418 419/* RAID extended inquiry: Mailbox command 0x04*/ 420typedef struct { 421 mraid_inquiry raid_inq; 422 u16 phys_drv_format[MAX_CHANNELS]; 423 u8 stack_attn; 424 u8 modem_status; 425 u8 rsvd[2]; 426} __attribute__ ((packed)) mraid_ext_inquiry; 427 428 429typedef struct { 430 u8 channel; 431 u8 target; 432}__attribute__ ((packed)) adp_device; 433 434typedef struct { 435 u32 start_blk; /* starting block */ 436 u32 num_blks; /* # of blocks */ 437 adp_device device[MAX_ROW_SIZE_40LD]; 438}__attribute__ ((packed)) adp_span_40ld; 439 440typedef struct { 441 u32 start_blk; /* starting block */ 442 u32 num_blks; /* # of blocks */ 443 adp_device device[MAX_ROW_SIZE_8LD]; 444}__attribute__ ((packed)) adp_span_8ld; 445 446typedef struct { 447 u8 span_depth; /* Total # of spans */ 448 u8 level; /* RAID level */ 449 u8 read_ahead; /* read ahead, no read ahead, adaptive read 450 ahead */ 451 u8 stripe_sz; /* Encoded stripe size */ 452 u8 status; /* Status of the logical drive */ 453 u8 write_mode; /* write mode, write_through/write_back */ 454 u8 direct_io; /* direct io or through cache */ 455 u8 row_size; /* Number of stripes in a row */ 456} __attribute__ ((packed)) logdrv_param; 457 458typedef struct { 459 logdrv_param lparam; 460 adp_span_40ld span[MAX_SPAN_DEPTH]; 461}__attribute__ ((packed)) logdrv_40ld; 462 463typedef struct { 464 logdrv_param lparam; 465 adp_span_8ld span[MAX_SPAN_DEPTH]; 466}__attribute__ ((packed)) logdrv_8ld; 467 468typedef struct { 469 u8 type; /* Type of the device */ 470 u8 cur_status; /* current status of the device */ 471 u8 tag_depth; /* Level of tagging */ 472 u8 sync_neg; /* sync negotiation - ENABLE or DISBALE */ 473 u32 size; /* configurable size in terms of 512 byte 474 blocks */ 475}__attribute__ ((packed)) phys_drv; 476 477typedef struct { 478 u8 nlog_drives; /* number of logical drives */ 479 u8 resvd[3]; 480 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; 481 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 482}__attribute__ ((packed)) disk_array_40ld; 483 484typedef struct { 485 u8 nlog_drives; /* number of logical drives */ 486 u8 resvd[3]; 487 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; 488 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 489}__attribute__ ((packed)) disk_array_8ld; 490 491 492/* 493 * User ioctl structure. 494 * This structure will be used for Traditional Method ioctl interface 495 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the 496 * Driver ioctls. 497 * The Driver ioctl interface handles the commands at the driver level, 498 * without being sent to the card. 499 */ 500/* system call imposed limit. Change accordingly */ 501#define IOCTL_MAX_DATALEN 4096 502 503struct uioctl_t { 504 u32 inlen; 505 u32 outlen; 506 union { 507 u8 fca[16]; 508 struct { 509 u8 opcode; 510 u8 subopcode; 511 u16 adapno; 512#if BITS_PER_LONG == 32 513 u8 *buffer; 514 u8 pad[4]; 515#endif 516#if BITS_PER_LONG == 64 517 u8 *buffer; 518#endif 519 u32 length; 520 } __attribute__ ((packed)) fcs; 521 } __attribute__ ((packed)) ui; 522 u8 mbox[18]; /* 16 bytes + 2 status bytes */ 523 mega_passthru pthru; 524#if BITS_PER_LONG == 32 525 char __user *data; /* buffer <= 4096 for 0x80 commands */ 526 char pad[4]; 527#endif 528#if BITS_PER_LONG == 64 529 char __user *data; 530#endif 531} __attribute__ ((packed)); 532 533/* 534 * struct mcontroller is used to pass information about the controllers in the 535 * system. Its upto the application how to use the information. We are passing 536 * as much info about the cards as possible and useful. Before issuing the 537 * call to find information about the cards, the applicaiton needs to issue a 538 * ioctl first to find out the number of controllers in the system. 539 */ 540#define MAX_CONTROLLERS 32 541 542struct mcontroller { 543 u64 base; 544 u8 irq; 545 u8 numldrv; 546 u8 pcibus; 547 u16 pcidev; 548 u8 pcifun; 549 u16 pciid; 550 u16 pcivendor; 551 u8 pcislot; 552 u32 uid; 553}; 554 555/* 556 * mailbox structure used for internal commands 557 */ 558typedef struct { 559 u8 cmd; 560 u8 cmdid; 561 u8 opcode; 562 u8 subopcode; 563 u32 lba; 564 u32 xferaddr; 565 u8 logdrv; 566 u8 rsvd[3]; 567 u8 numstatus; 568 u8 status; 569} __attribute__ ((packed)) megacmd_t; 570 571/* 572 * Defines for Driver IOCTL interface 573 */ 574#define MEGAIOC_MAGIC 'm' 575 576#define MEGAIOC_QNADAP 'm' /* Query # of adapters */ 577#define MEGAIOC_QDRVRVER 'e' /* Query driver version */ 578#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ 579#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) 580#define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) 581 582/* 583 * Definition for the new ioctl interface (NIT) 584 */ 585 586/* 587 * Vendor specific Group-7 commands 588 */ 589#define VENDOR_SPECIFIC_COMMANDS 0xE0 590#define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 591 592/* 593 * The ioctl command. No other command shall be used for this interface 594 */ 595#define USCSICMD VENDOR_SPECIFIC_COMMANDS 596 597/* 598 * Data direction flags 599 */ 600#define UIOC_RD 0x00001 601#define UIOC_WR 0x00002 602 603/* 604 * ioctl opcodes 605 */ 606#define MBOX_CMD 0x00000 /* DCMD or passthru command */ 607#define GET_DRIVER_VER 0x10000 /* Get driver version */ 608#define GET_N_ADAP 0x20000 /* Get number of adapters */ 609#define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ 610#define GET_CAP 0x40000 /* Get ioctl capabilities */ 611#define GET_STATS 0x50000 /* Get statistics, including error info */ 612 613 614/* 615 * The ioctl structure. 616 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and 617 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. 618 */ 619typedef struct { 620 char signature[8]; /* Must contain "MEGANIT" */ 621 u32 opcode; /* opcode for the command */ 622 u32 adapno; /* adapter number */ 623 union { 624 u8 __raw_mbox[18]; 625 void __user *__uaddr; /* xferaddr for non-mbox cmds */ 626 }__ua; 627 628#define uioc_rmbox __ua.__raw_mbox 629#define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) 630#define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) 631#define uioc_uaddr __ua.__uaddr 632 633 u32 xferlen; /* xferlen for DCMD and non-mbox 634 commands */ 635 u32 flags; /* data direction flags */ 636}nitioctl_t; 637 638 639/* 640 * I/O statistics for some applications like SNMP agent. The caller must 641 * provide the number of logical drives for which status should be reported. 642 */ 643typedef struct { 644 int num_ldrv; /* Number for logical drives for which the 645 status should be reported. */ 646 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for 647 each logical drive */ 648 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 649 read for each logical 650 drive */ 651 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes 652 for each logical 653 drive */ 654 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 655 writes for each 656 logical drive */ 657 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read 658 errors for each 659 logical drive */ 660 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write 661 errors for each 662 logical drive */ 663}megastat_t; 664 665 666struct private_bios_data { 667 u8 geometry:4; /* 668 * bits 0-3 - BIOS geometry 669 * 0x0001 - 1GB 670 * 0x0010 - 2GB 671 * 0x1000 - 8GB 672 * Others values are invalid 673 */ 674 u8 unused:4; /* bits 4-7 are unused */ 675 u8 boot_drv; /* 676 * logical drive set as boot drive 677 * 0..7 - for 8LD cards 678 * 0..39 - for 40LD cards 679 */ 680 u8 rsvd[12]; 681 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ 682} __attribute__ ((packed)); 683 684 685 686 687/* 688 * Mailbox and firmware commands and subopcodes used in this driver. 689 */ 690 691#define MEGA_MBOXCMD_LREAD 0x01 692#define MEGA_MBOXCMD_LWRITE 0x02 693#define MEGA_MBOXCMD_PASSTHRU 0x03 694#define MEGA_MBOXCMD_ADPEXTINQ 0x04 695#define MEGA_MBOXCMD_ADAPTERINQ 0x05 696#define MEGA_MBOXCMD_LREAD64 0xA7 697#define MEGA_MBOXCMD_LWRITE64 0xA8 698#define MEGA_MBOXCMD_PASSTHRU64 0xC3 699#define MEGA_MBOXCMD_EXTPTHRU 0xE3 700 701#define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ 702#define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ 703 704#define FC_NEW_CONFIG 0xA1 705#define NC_SUBOP_PRODUCT_INFO 0x0E 706#define NC_SUBOP_ENQUIRY3 0x0F 707#define ENQ3_GET_SOLICITED_FULL 0x02 708#define OP_DCMD_READ_CONFIG 0x04 709#define NEW_READ_CONFIG_8LD 0x67 710#define READ_CONFIG_8LD 0x07 711#define FLUSH_ADAPTER 0x0A 712#define FLUSH_SYSTEM 0xFE 713 714/* 715 * Command for random deletion of logical drives 716 */ 717#define FC_DEL_LOGDRV 0xA4 /* f/w command */ 718#define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ 719#define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ 720#define OP_DEL_LOGDRV 0x1C /* delete logical drive */ 721 722/* 723 * BIOS commands 724 */ 725#define IS_BIOS_ENABLED 0x62 726#define GET_BIOS 0x01 727#define CHNL_CLASS 0xA9 728#define GET_CHNL_CLASS 0x00 729#define SET_CHNL_CLASS 0x01 730#define CH_RAID 0x01 731#define CH_SCSI 0x00 732#define BIOS_PVT_DATA 0x40 733#define GET_BIOS_PVT_DATA 0x00 734 735 736/* 737 * Commands to support clustering 738 */ 739#define MEGA_GET_TARGET_ID 0x7D 740#define MEGA_CLUSTER_OP 0x70 741#define MEGA_GET_CLUSTER_MODE 0x02 742#define MEGA_CLUSTER_CMD 0x6E 743#define MEGA_RESERVE_LD 0x01 744#define MEGA_RELEASE_LD 0x02 745#define MEGA_RESET_RESERVATIONS 0x03 746#define MEGA_RESERVATION_STATUS 0x04 747#define MEGA_RESERVE_PD 0x05 748#define MEGA_RELEASE_PD 0x06 749 750 751/* 752 * Module battery status 753 */ 754#define MEGA_BATT_MODULE_MISSING 0x01 755#define MEGA_BATT_LOW_VOLTAGE 0x02 756#define MEGA_BATT_TEMP_HIGH 0x04 757#define MEGA_BATT_PACK_MISSING 0x08 758#define MEGA_BATT_CHARGE_MASK 0x30 759#define MEGA_BATT_CHARGE_DONE 0x00 760#define MEGA_BATT_CHARGE_INPROG 0x10 761#define MEGA_BATT_CHARGE_FAIL 0x20 762#define MEGA_BATT_CYCLES_EXCEEDED 0x40 763 764/* 765 * Physical drive states. 766 */ 767#define PDRV_UNCNF 0 768#define PDRV_ONLINE 3 769#define PDRV_FAILED 4 770#define PDRV_RBLD 5 771#define PDRV_HOTSPARE 6 772 773 774/* 775 * Raid logical drive states. 776 */ 777#define RDRV_OFFLINE 0 778#define RDRV_DEGRADED 1 779#define RDRV_OPTIMAL 2 780#define RDRV_DELETED 3 781 782/* 783 * Read, write and cache policies 784 */ 785#define NO_READ_AHEAD 0 786#define READ_AHEAD 1 787#define ADAP_READ_AHEAD 2 788#define WRMODE_WRITE_THRU 0 789#define WRMODE_WRITE_BACK 1 790#define CACHED_IO 0 791#define DIRECT_IO 1 792 793 794#define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) 795 796/* 797 * Each controller's soft state 798 */ 799typedef struct { 800 int this_id; /* our id, may set to different than 7 if 801 clustering is available */ 802 u32 flag; 803 804 unsigned long base; 805 void __iomem *mmio_base; 806 807 /* mbox64 with mbox not aligned on 16-byte boundry */ 808 mbox64_t *una_mbox64; 809 dma_addr_t una_mbox64_dma; 810 811 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ 812 volatile mbox_t *mbox; /* ptr to standard mailbox */ 813 dma_addr_t mbox_dma; 814 815 struct pci_dev *dev; 816 817 struct list_head free_list; 818 struct list_head pending_list; 819 struct list_head completed_list; 820 821 struct Scsi_Host *host; 822 823#define MEGA_BUFFER_SIZE (2*1024) 824 u8 *mega_buffer; 825 dma_addr_t buf_dma_handle; 826 827 mega_product_info product_info; 828 829 u8 max_cmds; 830 scb_t *scb_list; 831 832 atomic_t pend_cmds; /* maintain a counter for pending 833 commands in firmware */ 834 835#if MEGA_HAVE_STATS 836 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; 837 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; 838 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; 839 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; 840 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; 841 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; 842#endif 843 844 /* Host adapter parameters */ 845 u8 numldrv; 846 u8 fw_version[7]; 847 u8 bios_version[7]; 848 849#ifdef CONFIG_PROC_FS 850 struct proc_dir_entry *controller_proc_dir_entry; 851 struct proc_dir_entry *proc_read; 852 struct proc_dir_entry *proc_stat; 853 struct proc_dir_entry *proc_mbox; 854 855#if MEGA_HAVE_ENH_PROC 856 struct proc_dir_entry *proc_rr; 857 struct proc_dir_entry *proc_battery; 858#define MAX_PROC_CHANNELS 4 859 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS]; 860 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS]; 861#endif 862 863#endif 864 865 int has_64bit_addr; /* are we using 64-bit addressing */ 866 int support_ext_cdb; 867 int boot_ldrv_enabled; 868 int boot_ldrv; 869 int boot_pdrv_enabled; /* boot from physical drive */ 870 int boot_pdrv_ch; /* boot physical drive channel */ 871 int boot_pdrv_tgt; /* boot physical drive target */ 872 873 874 int support_random_del; /* Do we support random deletion of 875 logdrvs */ 876 int read_ldidmap; /* set after logical drive deltion. The 877 logical drive number must be read from the 878 map */ 879 atomic_t quiescent; /* a stage reached when delete logical 880 drive needs to be done. Stop 881 sending requests to the hba till 882 delete operation is completed */ 883 spinlock_t lock; 884 885 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on 886 what channels. */ 887 int mega_ch_class; 888 889 u8 sglen; /* f/w supported scatter-gather list length */ 890 891 scb_t int_scb; 892 Scsi_Cmnd int_scmd; 893 struct mutex int_mtx; /* To synchronize the internal 894 commands */ 895 struct completion int_waitq; /* wait queue for internal 896 cmds */ 897 898 int has_cluster; /* cluster support on this HBA */ 899}adapter_t; 900 901 902struct mega_hbas { 903 int is_bios_enabled; 904 adapter_t *hostdata_addr; 905}; 906 907 908/* 909 * For state flag. Do not use LSB(8 bits) which are 910 * reserved for storing info about channels. 911 */ 912#define IN_ABORT 0x80000000L 913#define IN_RESET 0x40000000L 914#define BOARD_MEMMAP 0x20000000L 915#define BOARD_IOMAP 0x10000000L 916#define BOARD_40LD 0x08000000L 917#define BOARD_64BIT 0x04000000L 918 919#define INTR_VALID 0x40 920 921#define PCI_CONF_AMISIG 0xa0 922#define PCI_CONF_AMISIG64 0xa4 923 924 925#define MEGA_DMA_TYPE_NONE 0xFFFF 926#define MEGA_BULK_DATA 0x0001 927#define MEGA_SGLIST 0x0002 928 929/* 930 * Parameters for the io-mapped controllers 931 */ 932 933/* I/O Port offsets */ 934#define CMD_PORT 0x00 935#define ACK_PORT 0x00 936#define TOGGLE_PORT 0x01 937#define INTR_PORT 0x0a 938 939#define MBOX_BUSY_PORT 0x00 940#define MBOX_PORT0 0x04 941#define MBOX_PORT1 0x05 942#define MBOX_PORT2 0x06 943#define MBOX_PORT3 0x07 944#define ENABLE_MBOX_REGION 0x0B 945 946/* I/O Port Values */ 947#define ISSUE_BYTE 0x10 948#define ACK_BYTE 0x08 949#define ENABLE_INTR_BYTE 0xc0 950#define DISABLE_INTR_BYTE 0x00 951#define VALID_INTR_BYTE 0x40 952#define MBOX_BUSY_BYTE 0x10 953#define ENABLE_MBOX_BYTE 0x00 954 955 956/* Setup some port macros here */ 957#define issue_command(adapter) \ 958 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) 959 960#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) 961 962#define set_irq_state(adapter, value) \ 963 outb_p((value), (adapter)->base + INTR_PORT) 964 965#define irq_ack(adapter) \ 966 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) 967 968#define irq_enable(adapter) \ 969 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 970 971#define irq_disable(adapter) \ 972 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 973 974 975/* 976 * This is our SYSDEP area. All kernel specific detail should be placed here - 977 * as much as possible 978 */ 979 980/* 981 * End of SYSDEP area 982 */ 983 984const char *megaraid_info (struct Scsi_Host *); 985 986static int mega_query_adapter(adapter_t *); 987static int issue_scb(adapter_t *, scb_t *); 988static int mega_setup_mailbox(adapter_t *); 989 990static int megaraid_queue (Scsi_Cmnd *, void (*)(Scsi_Cmnd *)); 991static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *); 992static void __mega_runpendq(adapter_t *); 993static int issue_scb_block(adapter_t *, u_char *); 994 995static irqreturn_t megaraid_isr_memmapped(int, void *); 996static irqreturn_t megaraid_isr_iomapped(int, void *); 997 998static void mega_free_scb(adapter_t *, scb_t *); 999 1000static int megaraid_abort(Scsi_Cmnd *); 1001static int megaraid_reset(Scsi_Cmnd *); 1002static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int); 1003static int megaraid_biosparam(struct scsi_device *, struct block_device *, 1004 sector_t, int []); 1005 1006static int mega_build_sglist (adapter_t *adapter, scb_t *scb, 1007 u32 *buffer, u32 *length); 1008static int __mega_busywait_mbox (adapter_t *); 1009static void mega_rundoneq (adapter_t *); 1010static void mega_cmd_done(adapter_t *, u8 [], int, int); 1011static inline void mega_free_sgl (adapter_t *adapter); 1012static void mega_8_to_40ld (mraid_inquiry *inquiry, 1013 mega_inquiry3 *enquiry3, mega_product_info *); 1014 1015static int megadev_open (struct inode *, struct file *); 1016static int megadev_ioctl (struct inode *, struct file *, unsigned int, 1017 unsigned long); 1018static int mega_m_to_n(void __user *, nitioctl_t *); 1019static int mega_n_to_m(void __user *, megacmd_t *); 1020 1021static int mega_init_scb (adapter_t *); 1022 1023static int mega_is_bios_enabled (adapter_t *); 1024 1025#ifdef CONFIG_PROC_FS 1026static int mega_print_inquiry(char *, char *); 1027static void mega_create_proc_entry(int, struct proc_dir_entry *); 1028static int proc_read_config(char *, char **, off_t, int, int *, void *); 1029static int proc_read_stat(char *, char **, off_t, int, int *, void *); 1030static int proc_read_mbox(char *, char **, off_t, int, int *, void *); 1031static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *); 1032static int proc_battery(char *, char **, off_t, int, int *, void *); 1033static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *); 1034static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *); 1035static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *); 1036static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *); 1037static int proc_pdrv(adapter_t *, char *, int); 1038static int proc_rdrv_10(char *, char **, off_t, int, int *, void *); 1039static int proc_rdrv_20(char *, char **, off_t, int, int *, void *); 1040static int proc_rdrv_30(char *, char **, off_t, int, int *, void *); 1041static int proc_rdrv_40(char *, char **, off_t, int, int *, void *); 1042static int proc_rdrv(adapter_t *, char *, int, int); 1043 1044static int mega_adapinq(adapter_t *, dma_addr_t); 1045static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); 1046#endif 1047 1048static int mega_support_ext_cdb(adapter_t *); 1049static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, 1050 Scsi_Cmnd *, int, int); 1051static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, 1052 scb_t *, Scsi_Cmnd *, int, int); 1053static void mega_enum_raid_scsi(adapter_t *); 1054static void mega_get_boot_drv(adapter_t *); 1055static int mega_support_random_del(adapter_t *); 1056static int mega_del_logdrv(adapter_t *, int); 1057static int mega_do_del_logdrv(adapter_t *, int); 1058static void mega_get_max_sgl(adapter_t *); 1059static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); 1060static void mega_internal_done(Scsi_Cmnd *); 1061static int mega_support_cluster(adapter_t *); 1062#endif 1063 1064/* vi: set ts=8 sw=8 tw=78: */ 1065