1 #ifndef __MEGARAID_H__ 2 #define __MEGARAID_H__ 3 4 #include <linux/version.h> 5 #include <linux/spinlock.h> 6 7 8 #define MEGARAID_VERSION \ 9 "v2.10.10.1 (Release Date: Thu Jan 27 16:19:44 EDT 2005)\n" 10 11 /* 12 * Driver features - change the values to enable or disable features in the 13 * driver. 14 */ 15 16 /* 17 * Comand coalescing - This feature allows the driver to be able to combine 18 * two or more commands and issue as one command in order to boost I/O 19 * performance. Useful if the nature of the I/O is sequential. It is not very 20 * useful for random natured I/Os. 21 */ 22 #define MEGA_HAVE_COALESCING 0 23 24 /* 25 * Clustering support - Set this flag if you are planning to use the 26 * clustering services provided by the megaraid controllers and planning to 27 * setup a cluster 28 */ 29 #define MEGA_HAVE_CLUSTERING 1 30 31 /* 32 * Driver statistics - Set this flag if you are interested in statics about 33 * number of I/O completed on each logical drive and how many interrupts 34 * generated. If enabled, this information is available through /proc 35 * interface and through the private ioctl. Setting this flag has a 36 * performance penalty. 37 */ 38 #define MEGA_HAVE_STATS 0 39 40 /* 41 * Enhanced /proc interface - This feature will allow you to have a more 42 * detailed /proc interface for megaraid driver. E.g., a real time update of 43 * the status of the logical drives, battery status, physical drives etc. 44 */ 45 #define MEGA_HAVE_ENH_PROC 1 46 47 #ifndef PCI_VENDOR_ID_AMI 48 #define PCI_VENDOR_ID_AMI 0x101E 49 #endif 50 51 #ifndef PCI_VENDOR_ID_DELL 52 #define PCI_VENDOR_ID_DELL 0x1028 53 #endif 54 55 #ifndef PCI_VENDOR_ID_INTEL 56 #define PCI_VENDOR_ID_INTEL 0x8086 57 #endif 58 59 #ifndef PCI_DEVICE_ID_AMI_MEGARAID 60 #define PCI_DEVICE_ID_AMI_MEGARAID 0x9010 61 #endif 62 63 #ifndef PCI_DEVICE_ID_AMI_MEGARAID2 64 #define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060 65 #endif 66 67 #ifndef PCI_DEVICE_ID_AMI_MEGARAID3 68 #define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960 69 #endif 70 71 #define PCI_DEVICE_ID_DISCOVERY 0x000E 72 #define PCI_DEVICE_ID_PERC4_DI 0x000F 73 #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 74 #define PCI_DEVICE_ID_PERC4E_SI_DI 0x0013 75 #define PCI_DEVICE_ID_PERC4E_DC_SC 0x0408 76 #define PCI_DEVICE_ID_LSI_SATA_PCIX 0x0409 77 78 /* Sub-System Vendor IDs */ 79 #define AMI_SUBSYS_VID 0x101E 80 #define DELL_SUBSYS_VID 0x1028 81 #define HP_SUBSYS_VID 0x103C 82 #define LSI_SUBSYS_VID 0x1000 83 #define INTEL_SUBSYS_VID 0x8086 84 #define FSC_SUBSYS_VID 0x1734 85 #define ACER_SUBSYS_VID 0x1025 86 #define NEC_SUBSYS_VID 0x1033 87 88 #define HBA_SIGNATURE 0x3344 89 #define HBA_SIGNATURE_471 0xCCCC 90 #define HBA_SIGNATURE_64BIT 0x0299 91 92 #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for 93 mailbox to be free */ 94 #define DEFAULT_INITIATOR_ID 7 95 96 #define MAX_SGLIST 64 /* max supported in f/w */ 97 #define MIN_SGLIST 26 /* guaranteed to support these many */ 98 #define MAX_COMMANDS 126 99 #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS 100 is less than max commands 101 supported by any f/w */ 102 103 #define MAX_CDB_LEN 10 104 #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ 105 106 #define DEF_CMD_PER_LUN 63 107 #define MAX_CMD_PER_LUN MAX_COMMANDS 108 #define MAX_FIRMWARE_STATUS 46 109 #define MAX_XFER_PER_CMD (64*1024) 110 #define MAX_SECTORS_PER_IO 128 111 112 #define MAX_LOGICAL_DRIVES_40LD 40 113 #define FC_MAX_PHYSICAL_DEVICES 256 114 #define MAX_LOGICAL_DRIVES_8LD 8 115 #define MAX_CHANNELS 5 116 #define MAX_TARGET 15 117 #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET 118 #define MAX_ROW_SIZE_40LD 32 119 #define MAX_ROW_SIZE_8LD 8 120 #define MAX_SPAN_DEPTH 8 121 122 #define NVIRT_CHAN 4 /* # of virtual channels to represent 123 up to 60 logical drives */ 124 125 #define MEGARAID \ 126 { \ 127 .name = "MegaRAID", \ 128 .proc_name = "megaraid", \ 129 .detect = megaraid_detect, \ 130 .release = megaraid_release, \ 131 .info = megaraid_info, \ 132 .command = megaraid_command, \ 133 .queuecommand = megaraid_queue, \ 134 .max_sectors = MAX_SECTORS_PER_IO, \ 135 .can_queue = MAX_COMMANDS, \ 136 .this_id = DEFAULT_INITIATOR_ID, \ 137 .sg_tablesize = MAX_SGLIST, \ 138 .cmd_per_lun = DEF_CMD_PER_LUN, \ 139 .present = 0, \ 140 .unchecked_isa_dma = 0, \ 141 .use_clustering = ENABLE_CLUSTERING, \ 142 .use_new_eh_code = 1, \ 143 .eh_abort_handler = megaraid_abort, \ 144 .eh_device_reset_handler = megaraid_reset, \ 145 .eh_bus_reset_handler = megaraid_reset, \ 146 .eh_host_reset_handler = megaraid_reset, \ 147 .highmem_io = 1 \ 148 } 149 150 151 152 typedef struct { 153 /* 0x0 */ u8 cmd; 154 /* 0x1 */ u8 cmdid; 155 /* 0x2 */ u16 numsectors; 156 /* 0x4 */ u32 lba; 157 /* 0x8 */ u32 xferaddr; 158 /* 0xC */ u8 logdrv; 159 /* 0xD */ u8 numsgelements; 160 /* 0xE */ u8 resvd; 161 /* 0xF */ volatile u8 busy; 162 /* 0x10 */ volatile u8 numstatus; 163 /* 0x11 */ volatile u8 status; 164 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; 165 volatile u8 poll; 166 volatile u8 ack; 167 } __attribute__ ((packed)) mbox_t; 168 169 typedef struct { 170 u32 xfer_segment_lo; 171 u32 xfer_segment_hi; 172 mbox_t mbox; 173 } __attribute__ ((packed)) mbox64_t; 174 175 176 /* 177 * Passthru definitions 178 */ 179 #define MAX_REQ_SENSE_LEN 0x20 180 181 typedef struct { 182 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 183 u8 ars:1; 184 u8 reserved:3; 185 u8 islogical:1; 186 u8 logdrv; /* if islogical == 1 */ 187 u8 channel; /* if islogical == 0 */ 188 u8 target; /* if islogical == 0 */ 189 u8 queuetag; /* unused */ 190 u8 queueaction; /* unused */ 191 u8 cdb[MAX_CDB_LEN]; 192 u8 cdblen; 193 u8 reqsenselen; 194 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 195 u8 numsgelements; 196 u8 scsistatus; 197 u32 dataxferaddr; 198 u32 dataxferlen; 199 } __attribute__ ((packed)) mega_passthru; 200 201 202 /* 203 * Extended passthru: support CDB > 10 bytes 204 */ 205 typedef struct { 206 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 207 u8 ars:1; 208 u8 rsvd1:1; 209 u8 cd_rom:1; 210 u8 rsvd2:1; 211 u8 islogical:1; 212 u8 logdrv; /* if islogical == 1 */ 213 u8 channel; /* if islogical == 0 */ 214 u8 target; /* if islogical == 0 */ 215 u8 queuetag; /* unused */ 216 u8 queueaction; /* unused */ 217 u8 cdblen; 218 u8 rsvd3; 219 u8 cdb[MAX_EXT_CDB_LEN]; 220 u8 numsgelements; 221 u8 status; 222 u8 reqsenselen; 223 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 224 u8 rsvd4; 225 u32 dataxferaddr; 226 u32 dataxferlen; 227 } __attribute__ ((packed)) mega_ext_passthru; 228 229 typedef struct { 230 u64 address; 231 u32 length; 232 } __attribute__ ((packed)) mega_sgl64; 233 234 typedef struct { 235 u32 address; 236 u32 length; 237 } __attribute__ ((packed)) mega_sglist; 238 239 240 /* Queued command data */ 241 typedef struct { 242 int idx; 243 u32 state; 244 struct list_head list; 245 u8 raw_mbox[66]; 246 u32 dma_type; 247 u32 dma_direction; 248 249 Scsi_Cmnd *cmd; 250 dma_addr_t dma_h_bulkdata; 251 dma_addr_t dma_h_sgdata; 252 253 mega_sglist *sgl; 254 mega_sgl64 *sgl64; 255 dma_addr_t sgl_dma_addr; 256 257 mega_passthru *pthru; 258 dma_addr_t pthru_dma_addr; 259 mega_ext_passthru *epthru; 260 dma_addr_t epthru_dma_addr; 261 } scb_t; 262 263 /* 264 * Flags to follow the scb as it transitions between various stages 265 */ 266 #define SCB_FREE 0x0000 /* on the free list */ 267 #define SCB_ACTIVE 0x0001 /* off the free list */ 268 #define SCB_PENDQ 0x0002 /* on the pending queue */ 269 #define SCB_ISSUED 0x0004 /* issued - owner f/w */ 270 #define SCB_ABORT 0x0008 /* Got an abort for this one */ 271 #define SCB_RESET 0x0010 /* Got a reset for this one */ 272 273 /* 274 * Utilities declare this strcture size as 1024 bytes. So more fields can 275 * be added in future. 276 */ 277 typedef struct { 278 u32 data_size; /* current size in bytes (not including resvd) */ 279 280 u32 config_signature; 281 /* Current value is 0x00282008 282 * 0x28=MAX_LOGICAL_DRIVES, 283 * 0x20=Number of stripes and 284 * 0x08=Number of spans */ 285 286 u8 fw_version[16]; /* printable ASCI string */ 287 u8 bios_version[16]; /* printable ASCI string */ 288 u8 product_name[80]; /* printable ASCI string */ 289 290 u8 max_commands; /* Max. concurrent commands supported */ 291 u8 nchannels; /* Number of SCSI Channels detected */ 292 u8 fc_loop_present; /* Number of Fibre Loops detected */ 293 u8 mem_type; /* EDO, FPM, SDRAM etc */ 294 295 u32 signature; 296 u16 dram_size; /* In terms of MB */ 297 u16 subsysid; 298 299 u16 subsysvid; 300 u8 notify_counters; 301 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ 302 } __attribute__ ((packed)) mega_product_info; 303 304 struct notify { 305 u32 global_counter; /* Any change increments this counter */ 306 307 u8 param_counter; /* Indicates any params changed */ 308 u8 param_id; /* Param modified - defined below */ 309 u16 param_val; /* New val of last param modified */ 310 311 u8 write_config_counter; /* write config occurred */ 312 u8 write_config_rsvd[3]; 313 314 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ 315 u8 ldrv_opid; /* ldrv num */ 316 u8 ldrv_opcmd; /* ldrv operation - defined below */ 317 u8 ldrv_opstatus; /* status of the operation */ 318 319 u8 ldrv_state_counter; /* Indicates change of ldrv state */ 320 u8 ldrv_state_id; /* ldrv num */ 321 u8 ldrv_state_new; /* New state */ 322 u8 ldrv_state_old; /* old state */ 323 324 u8 pdrv_state_counter; /* Indicates change of ldrv state */ 325 u8 pdrv_state_id; /* pdrv id */ 326 u8 pdrv_state_new; /* New state */ 327 u8 pdrv_state_old; /* old state */ 328 329 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ 330 u8 pdrv_fmt_id; /* pdrv id */ 331 u8 pdrv_fmt_val; /* format started/over */ 332 u8 pdrv_fmt_rsvd; 333 334 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ 335 u8 targ_xfer_id; /* pdrv Id */ 336 u8 targ_xfer_val; /* new Xfer params of last pdrv */ 337 u8 targ_xfer_rsvd; 338 339 u8 fcloop_id_chg_counter; /* Indicates loopid changed */ 340 u8 fcloopid_pdrvid; /* pdrv id */ 341 u8 fcloop_id0; /* loopid on fc loop 0 */ 342 u8 fcloop_id1; /* loopid on fc loop 1 */ 343 344 u8 fcloop_state_counter; /* Indicates loop state changed */ 345 u8 fcloop_state0; /* state of fc loop 0 */ 346 u8 fcloop_state1; /* state of fc loop 1 */ 347 u8 fcloop_state_rsvd; 348 } __attribute__ ((packed)); 349 350 #define MAX_NOTIFY_SIZE 0x80 351 #define CUR_NOTIFY_SIZE sizeof(struct notify) 352 353 typedef struct { 354 u32 data_size; /* current size in bytes (not including resvd) */ 355 356 struct notify notify; 357 358 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; 359 360 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ 361 u8 cache_flush_interval; /* In terms of Seconds */ 362 u8 sense_alert; 363 u8 drive_insert_count; /* drive insertion count */ 364 365 u8 battery_status; 366 u8 num_ldrv; /* No. of Log Drives configured */ 367 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of 368 reconstruct */ 369 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv 370 Status */ 371 372 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ 373 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; 374 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ 375 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ 376 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; 377 378 u8 targ_xfer[80]; /* phys device transfer rate */ 379 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ 380 } __attribute__ ((packed)) mega_inquiry3; 381 382 383 /* Structures */ 384 typedef struct { 385 u8 max_commands; /* Max concurrent commands supported */ 386 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ 387 u8 max_targ_per_chan; /* Max targ per channel */ 388 u8 nchannels; /* Number of channels on HBA */ 389 u8 fw_version[4]; /* Firmware version */ 390 u16 age_of_flash; /* Number of times FW has been flashed */ 391 u8 chip_set_value; /* Contents of 0xC0000832 */ 392 u8 dram_size; /* In MB */ 393 u8 cache_flush_interval; /* in seconds */ 394 u8 bios_version[4]; 395 u8 board_type; 396 u8 sense_alert; 397 u8 write_config_count; /* Increase with every configuration 398 change */ 399 u8 drive_inserted_count; /* Increase with every drive inserted 400 */ 401 u8 inserted_drive; /* Channel:Id of inserted drive */ 402 u8 battery_status; /* 403 * BIT 0: battery module missing 404 * BIT 1: VBAD 405 * BIT 2: temprature high 406 * BIT 3: battery pack missing 407 * BIT 4,5: 408 * 00 - charge complete 409 * 01 - fast charge in progress 410 * 10 - fast charge fail 411 * 11 - undefined 412 * Bit 6: counter > 1000 413 * Bit 7: Undefined 414 */ 415 u8 dec_fault_bus_info; 416 } __attribute__ ((packed)) mega_adp_info; 417 418 419 typedef struct { 420 u8 num_ldrv; /* Number of logical drives configured */ 421 u8 rsvd[3]; 422 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; 423 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; 424 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; 425 } __attribute__ ((packed)) mega_ldrv_info; 426 427 typedef struct { 428 u8 pdrv_state[MAX_PHYSICAL_DRIVES]; 429 u8 rsvd; 430 } __attribute__ ((packed)) mega_pdrv_info; 431 432 /* RAID inquiry: Mailbox command 0x05*/ 433 typedef struct { 434 mega_adp_info adapter_info; 435 mega_ldrv_info logdrv_info; 436 mega_pdrv_info pdrv_info; 437 } __attribute__ ((packed)) mraid_inquiry; 438 439 440 /* RAID extended inquiry: Mailbox command 0x04*/ 441 typedef struct { 442 mraid_inquiry raid_inq; 443 u16 phys_drv_format[MAX_CHANNELS]; 444 u8 stack_attn; 445 u8 modem_status; 446 u8 rsvd[2]; 447 } __attribute__ ((packed)) mraid_ext_inquiry; 448 449 450 typedef struct { 451 u8 channel; 452 u8 target; 453 }__attribute__ ((packed)) adp_device; 454 455 typedef struct { 456 u32 start_blk; /* starting block */ 457 u32 num_blks; /* # of blocks */ 458 adp_device device[MAX_ROW_SIZE_40LD]; 459 }__attribute__ ((packed)) adp_span_40ld; 460 461 typedef struct { 462 u32 start_blk; /* starting block */ 463 u32 num_blks; /* # of blocks */ 464 adp_device device[MAX_ROW_SIZE_8LD]; 465 }__attribute__ ((packed)) adp_span_8ld; 466 467 typedef struct { 468 u8 span_depth; /* Total # of spans */ 469 u8 level; /* RAID level */ 470 u8 read_ahead; /* read ahead, no read ahead, adaptive read 471 ahead */ 472 u8 stripe_sz; /* Encoded stripe size */ 473 u8 status; /* Status of the logical drive */ 474 u8 write_mode; /* write mode, write_through/write_back */ 475 u8 direct_io; /* direct io or through cache */ 476 u8 row_size; /* Number of stripes in a row */ 477 } __attribute__ ((packed)) logdrv_param; 478 479 typedef struct { 480 logdrv_param lparam; 481 adp_span_40ld span[MAX_SPAN_DEPTH]; 482 }__attribute__ ((packed)) logdrv_40ld; 483 484 typedef struct { 485 logdrv_param lparam; 486 adp_span_8ld span[MAX_SPAN_DEPTH]; 487 }__attribute__ ((packed)) logdrv_8ld; 488 489 typedef struct { 490 u8 type; /* Type of the device */ 491 u8 cur_status; /* current status of the device */ 492 u8 tag_depth; /* Level of tagging */ 493 u8 sync_neg; /* sync negotiation - ENABLE or DISBALE */ 494 u32 size; /* configurable size in terms of 512 byte 495 blocks */ 496 }__attribute__ ((packed)) phys_drv; 497 498 typedef struct { 499 u8 nlog_drives; /* number of logical drives */ 500 u8 resvd[3]; 501 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; 502 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 503 }__attribute__ ((packed)) disk_array_40ld; 504 505 typedef struct { 506 u8 nlog_drives; /* number of logical drives */ 507 u8 resvd[3]; 508 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; 509 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 510 }__attribute__ ((packed)) disk_array_8ld; 511 512 /* 513 * FW Definitions & Data Structures for 8LD 4-Span and 8-Span Controllers 514 */ 515 #define MAX_STRIPES 8 516 #define SPAN4_DEPTH 4 517 #define SPAN8_DEPTH 8 518 #define MAX_PHYDRVS 5 * 16 /* 5 Channels * 16 Targets */ 519 520 typedef struct { 521 unsigned char channel; 522 unsigned char target; 523 }__attribute__ ((packed)) device_t; 524 525 typedef struct { 526 unsigned long start_blk; 527 unsigned long total_blks; 528 device_t device[ MAX_STRIPES ]; 529 }__attribute__ ((packed)) span_t; 530 531 typedef struct { 532 unsigned char type; 533 unsigned char curr_status; 534 unsigned char tag_depth; 535 unsigned char resvd1; 536 unsigned long size; 537 }__attribute__ ((packed)) phydrv_t; 538 539 typedef struct { 540 unsigned char span_depth; 541 unsigned char raid; 542 unsigned char read_ahead; /* 0=No rdahead,1=RDAHEAD,2=adaptive */ 543 unsigned char stripe_sz; 544 unsigned char status; 545 unsigned char write_policy; /* 0=wrthru,1=wrbak */ 546 unsigned char direct_io; /* 1=directio,0=cached */ 547 unsigned char no_stripes; 548 span_t span[ SPAN4_DEPTH ]; 549 }__attribute__ ((packed)) ld_span4_t; 550 551 typedef struct { 552 unsigned char span_depth; 553 unsigned char raid; 554 unsigned char read_ahead; /* 0=No rdahead,1=RDAHEAD,2=adaptive */ 555 unsigned char stripe_sz; 556 unsigned char status; 557 unsigned char write_policy; /* 0=wrthru,1=wrbak */ 558 unsigned char direct_io; /* 1=directio,0=cached */ 559 unsigned char no_stripes; 560 span_t span[ SPAN8_DEPTH ]; 561 }__attribute__ ((packed)) ld_span8_t; 562 563 typedef struct { 564 unsigned char no_log_drives; 565 unsigned char pad[3]; 566 ld_span4_t log_drv[ MAX_LOGICAL_DRIVES_8LD ]; 567 phydrv_t phys_drv[ MAX_PHYDRVS ]; 568 }__attribute__ ((packed)) diskarray_span4_t; 569 570 typedef struct { 571 unsigned char no_log_drives; 572 unsigned char pad[3]; 573 ld_span8_t log_drv[ MAX_LOGICAL_DRIVES_8LD ]; 574 phydrv_t phys_drv[ MAX_PHYDRVS ]; 575 }__attribute__ ((packed)) diskarray_span8_t; 576 577 /* 578 * User ioctl structure. 579 * This structure will be used for Traditional Method ioctl interface 580 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the 581 * Driver ioctls. 582 * The Driver ioctl interface handles the commands at the driver level, 583 * without being sent to the card. 584 */ 585 /* system call imposed limit. Change accordingly */ 586 #define IOCTL_MAX_DATALEN 4096 587 588 struct uioctl_t { 589 u32 inlen; 590 u32 outlen; 591 union { 592 u8 fca[16]; 593 struct { 594 u8 opcode; 595 u8 subopcode; 596 u16 adapno; 597 #if BITS_PER_LONG == 32 598 u8 *buffer; 599 u8 pad[4]; 600 #endif 601 #if BITS_PER_LONG == 64 602 u8 *buffer; 603 #endif 604 u32 length; 605 } __attribute__ ((packed)) fcs; 606 } __attribute__ ((packed)) ui; 607 u8 mbox[18]; /* 16 bytes + 2 status bytes */ 608 mega_passthru pthru; 609 #if BITS_PER_LONG == 32 610 char *data; /* buffer <= 4096 for 0x80 commands */ 611 char pad[4]; 612 #endif 613 #if BITS_PER_LONG == 64 614 char *data; 615 #endif 616 } __attribute__ ((packed)); 617 618 /* 619 * struct mcontroller is used to pass information about the controllers in the 620 * system. Its upto the application how to use the information. We are passing 621 * as much info about the cards as possible and useful. Before issuing the 622 * call to find information about the cards, the applicaiton needs to issue a 623 * ioctl first to find out the number of controllers in the system. 624 */ 625 #define MAX_CONTROLLERS 32 626 627 struct mcontroller { 628 u64 base; 629 u8 irq; 630 u8 numldrv; 631 u8 pcibus; 632 u16 pcidev; 633 u8 pcifun; 634 u16 pciid; 635 u16 pcivendor; 636 u8 pcislot; 637 u32 uid; 638 }; 639 640 /* 641 * mailbox structure used for internal commands 642 */ 643 typedef struct { 644 u8 cmd; 645 u8 cmdid; 646 u8 opcode; 647 u8 subopcode; 648 u32 lba; 649 u32 xferaddr; 650 u8 logdrv; 651 u8 rsvd[3]; 652 u8 numstatus; 653 u8 status; 654 } __attribute__ ((packed)) megacmd_t; 655 656 /* 657 * Defines for Driver IOCTL interface 658 */ 659 #define MEGAIOC_MAGIC 'm' 660 661 /* Mega IOCTL command */ 662 #define MEGAIOCCMD _IOWR(MEGAIOC_MAGIC, 0, struct uioctl_t) 663 664 #define MEGAIOC_QNADAP 'm' /* Query # of adapters */ 665 #define MEGAIOC_QDRVRVER 'e' /* Query driver version */ 666 #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ 667 #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) 668 #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) 669 670 /* 671 * Definition for the new ioctl interface (NIT) 672 */ 673 674 /* 675 * Vendor specific Group-7 commands 676 */ 677 #define VENDOR_SPECIFIC_COMMANDS 0xE0 678 #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 679 680 /* 681 * The ioctl command. No other command shall be used for this interface 682 */ 683 #define USCSICMD VENDOR_SPECIFIC_COMMANDS 684 685 /* 686 * Data direction flags 687 */ 688 #define UIOC_RD 0x00001 689 #define UIOC_WR 0x00002 690 691 /* 692 * ioctl opcodes 693 */ 694 #define MBOX_CMD 0x00000 /* DCMD or passthru command */ 695 #define GET_DRIVER_VER 0x10000 /* Get driver version */ 696 #define GET_N_ADAP 0x20000 /* Get number of adapters */ 697 #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ 698 #define GET_CAP 0x40000 /* Get ioctl capabilities */ 699 #define GET_STATS 0x50000 /* Get statistics, including error info */ 700 701 702 /* 703 * The ioctl structure. 704 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and 705 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. 706 */ 707 typedef struct { 708 char signature[8]; /* Must contain "MEGANIT" */ 709 u32 opcode; /* opcode for the command */ 710 u32 adapno; /* adapter number */ 711 mbox_t u_mbox; /* user mailbox */ 712 caddr_t u_dataaddr; /* xferaddr for DCMD and non-mbox 713 commands */ 714 mega_passthru pthru; 715 716 #define RMBOX(uioc) ((u8 *)&(uioc).u_mbox) 717 #define MBOX(uioc) ((megacmd_t *)&(uioc).u_mbox) 718 #define MBOX_P(uioc) ((megacmd_t *)&(uioc)->u_mbox) 719 720 721 u32 xferlen; /* xferlen for DCMD and non-mbox 722 commands */ 723 u32 flags; /* data direction flags */ 724 }nitioctl_t; 725 726 727 /* 728 * I/O statistics for some applications like SNMP agent. The caller must 729 * provide the number of logical drives for which status should be reported. 730 */ 731 typedef struct { 732 int num_ldrv; /* Number for logical drives for which the 733 status should be reported. */ 734 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for 735 each logical drive */ 736 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 737 read for each logical 738 drive */ 739 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes 740 for each logical 741 drive */ 742 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 743 writes for each 744 logical drive */ 745 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read 746 errors for each 747 logical drive */ 748 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write 749 errors for each 750 logical drive */ 751 }megastat_t; 752 753 754 struct private_bios_data { 755 u8 geometry:4; /* 756 * bits 0-3 - BIOS geometry 757 * 0x0001 - 1GB 758 * 0x0010 - 2GB 759 * 0x1000 - 8GB 760 * Others values are invalid 761 */ 762 u8 unused:4; /* bits 4-7 are unused */ 763 u8 boot_drv; /* 764 * logical drive set as boot drive 765 * 0..7 - for 8LD cards 766 * 0..39 - for 40LD cards 767 */ 768 u8 rsvd[12]; 769 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ 770 } __attribute__ ((packed)); 771 772 773 774 775 /* 776 * Mailbox and firmware commands and subopcodes used in this driver. 777 */ 778 779 #define MEGA_MBOXCMD_LREAD 0x01 780 #define MEGA_MBOXCMD_LWRITE 0x02 781 #define MEGA_MBOXCMD_PASSTHRU 0x03 782 #define MEGA_MBOXCMD_ADPEXTINQ 0x04 783 #define MEGA_MBOXCMD_ADAPTERINQ 0x05 784 #define MEGA_MBOXCMD_LREAD64 0xA7 785 #define MEGA_MBOXCMD_LWRITE64 0xA8 786 #define MEGA_MBOXCMD_PASSTHRU64 0xC3 787 #define MEGA_MBOXCMD_EXTPTHRU 0xE3 788 789 #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ 790 #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ 791 792 #define FC_NEW_CONFIG 0xA1 793 #define NC_SUBOP_PRODUCT_INFO 0x0E 794 #define NC_SUBOP_ENQUIRY3 0x0F 795 #define ENQ3_GET_SOLICITED_FULL 0x02 796 #define OP_DCMD_READ_CONFIG 0x04 797 #define NEW_READ_CONFIG_8LD 0x67 798 #define READ_CONFIG_8LD 0x07 799 #define FLUSH_ADAPTER 0x0A 800 #define FLUSH_SYSTEM 0xFE 801 802 /* 803 * Command for random deletion of logical drives 804 */ 805 #define FC_DEL_LOGDRV 0xA4 /* f/w command */ 806 #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ 807 #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ 808 #define OP_DEL_LOGDRV 0x1C /* delete logical drive */ 809 810 /* 811 * BIOS commands 812 */ 813 #define IS_BIOS_ENABLED 0x62 814 #define GET_BIOS 0x01 815 #define CHNL_CLASS 0xA9 816 #define GET_CHNL_CLASS 0x00 817 #define SET_CHNL_CLASS 0x01 818 #define CH_RAID 0x01 819 #define CH_SCSI 0x00 820 #define BIOS_PVT_DATA 0x40 821 #define GET_BIOS_PVT_DATA 0x00 822 823 824 /* 825 * Commands to support clustering 826 */ 827 #define MEGA_GET_TARGET_ID 0x7D 828 #define MEGA_CLUSTER_OP 0x70 829 #define MEGA_GET_CLUSTER_MODE 0x02 830 #define MEGA_CLUSTER_CMD 0x6E 831 #define MEGA_RESERVE_LD 0x01 832 #define MEGA_RELEASE_LD 0x02 833 #define MEGA_RESET_RESERVATIONS 0x03 834 #define MEGA_RESERVATION_STATUS 0x04 835 #define MEGA_RESERVE_PD 0x05 836 #define MEGA_RELEASE_PD 0x06 837 838 839 /* 840 * Module battery status 841 */ 842 #define MEGA_BATT_MODULE_MISSING 0x01 843 #define MEGA_BATT_LOW_VOLTAGE 0x02 844 #define MEGA_BATT_TEMP_HIGH 0x04 845 #define MEGA_BATT_PACK_MISSING 0x08 846 #define MEGA_BATT_CHARGE_MASK 0x30 847 #define MEGA_BATT_CHARGE_DONE 0x00 848 #define MEGA_BATT_CHARGE_INPROG 0x10 849 #define MEGA_BATT_CHARGE_FAIL 0x20 850 #define MEGA_BATT_CYCLES_EXCEEDED 0x40 851 852 /* 853 * Physical drive states. 854 */ 855 #define PDRV_UNCNF 0 856 #define PDRV_ONLINE 3 857 #define PDRV_FAILED 4 858 #define PDRV_RBLD 5 859 #define PDRV_HOTSPARE 6 860 861 862 /* 863 * Raid logical drive states. 864 */ 865 #define RDRV_OFFLINE 0 866 #define RDRV_DEGRADED 1 867 #define RDRV_OPTIMAL 2 868 #define RDRV_DELETED 3 869 870 /* 871 * Read, write and cache policies 872 */ 873 #define NO_READ_AHEAD 0 874 #define READ_AHEAD 1 875 #define ADAP_READ_AHEAD 2 876 #define WRMODE_WRITE_THRU 0 877 #define WRMODE_WRITE_BACK 1 878 #define CACHED_IO 0 879 #define DIRECT_IO 1 880 881 882 /* 883 * Each controller's soft state 884 */ 885 typedef struct { 886 int this_id; /* our id, may set to different than 7 if 887 clustering is available */ 888 u32 flag; 889 890 unsigned long base; 891 892 /* mbox64 with mbox not aligned on 16-byte boundry */ 893 mbox64_t *una_mbox64; 894 dma_addr_t una_mbox64_dma; 895 896 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ 897 volatile mbox_t *mbox; /* ptr to standard mailbox */ 898 dma_addr_t mbox_dma; 899 struct pci_dev *dev; 900 901 struct list_head free_list; 902 struct list_head pending_list; 903 904 struct Scsi_Host *host; 905 906 #define MEGA_BUFFER_SIZE (2*1024) 907 u8 *mega_buffer; 908 dma_addr_t buf_dma_handle; 909 910 mega_product_info product_info; 911 912 u8 max_cmds; 913 scb_t *scb_list; 914 915 atomic_t pend_cmds; /* maintain a counter for 916 pending commands in firmware */ 917 918 #if MEGA_HAVE_STATS 919 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; 920 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; 921 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; 922 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; 923 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; 924 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; 925 #endif 926 927 /* Host adapter parameters */ 928 u8 numldrv; 929 u8 fw_version[7]; 930 u8 bios_version[7]; 931 932 #ifdef CONFIG_PROC_FS 933 struct proc_dir_entry *controller_proc_dir_entry; 934 struct proc_dir_entry *proc_read; 935 struct proc_dir_entry *proc_stat; 936 struct proc_dir_entry *proc_mbox; 937 938 #if MEGA_HAVE_ENH_PROC 939 struct proc_dir_entry *proc_rr; 940 struct proc_dir_entry *proc_battery; 941 #define MAX_PROC_CHANNELS 4 942 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS]; 943 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS]; 944 #endif 945 946 #endif 947 948 int has_64bit_addr; /* are we using 64-bit addressing */ 949 int support_ext_cdb; 950 int boot_ldrv_enabled; 951 int boot_ldrv; 952 int boot_pdrv_enabled; /* boot from physical drive */ 953 int boot_pdrv_ch; /* boot physical drive channel */ 954 int boot_pdrv_tgt; /* boot physical drive target */ 955 956 957 int support_random_del; /* Do we support random deletion of 958 logdrvs */ 959 int read_ldidmap; /* set after logical drive deltion. The 960 logical drive number must be read from the 961 map */ 962 atomic_t quiescent; /* a stage reached when delete logical 963 drive needs to be done. Stop 964 sending requests to the hba till 965 delete operation is completed */ 966 spinlock_t lock; 967 spinlock_t *host_lock; // pointer to appropriate lock 968 969 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on 970 what channels. */ 971 int mega_ch_class; 972 973 u8 sglen; /* f/w supported scatter-gather list length */ 974 975 scb_t int_scb; 976 Scsi_Cmnd int_scmd; 977 struct semaphore int_mtx; /* To synchronize the internal 978 commands */ 979 wait_queue_head_t int_waitq; /* wait queue for internal 980 cmds */ 981 982 int has_cluster; /* cluster support on this HBA */ 983 984 #define INT_MEMBLK_SZ (28*1024) 985 mega_passthru *int_pthru; /*internal pthru*/ 986 dma_addr_t int_pthru_dma_hndl; 987 caddr_t int_data; /*internal data*/ 988 dma_addr_t int_data_dma_hndl; 989 990 int hw_error; 991 992 }adapter_t; 993 994 995 struct mega_hbas { 996 int is_bios_enabled; 997 adapter_t *hostdata_addr; 998 }; 999 1000 1001 /* 1002 * For state flag. Do not use LSB(8 bits) which are 1003 * reserved for storing info about channels. 1004 */ 1005 #define IN_ABORT 0x80000000L 1006 #define IN_RESET 0x40000000L 1007 #define BOARD_MEMMAP 0x20000000L 1008 #define BOARD_IOMAP 0x10000000L 1009 #define BOARD_40LD 0x08000000L 1010 #define BOARD_64BIT 0x04000000L 1011 1012 #define INTR_VALID 0x40 1013 1014 #define PCI_CONF_AMISIG 0xa0 1015 #define PCI_CONF_AMISIG64 0xa4 1016 1017 1018 #define MEGA_DMA_TYPE_NONE 0xFFFF 1019 #define MEGA_BULK_DATA 0x0001 1020 #define MEGA_SGLIST 0x0002 1021 1022 /* 1023 * lockscope definitions, callers can specify the lock scope with this data 1024 * type. LOCK_INT would mean the caller has not acquired the lock before 1025 * making the call and LOCK_EXT would mean otherwise. 1026 */ 1027 typedef enum { LOCK_INT, LOCK_EXT } lockscope_t; 1028 1029 /* 1030 * Parameters for the io-mapped controllers 1031 */ 1032 1033 /* I/O Port offsets */ 1034 #define CMD_PORT 0x00 1035 #define ACK_PORT 0x00 1036 #define TOGGLE_PORT 0x01 1037 #define INTR_PORT 0x0a 1038 1039 #define MBOX_BUSY_PORT 0x00 1040 #define MBOX_PORT0 0x04 1041 #define MBOX_PORT1 0x05 1042 #define MBOX_PORT2 0x06 1043 #define MBOX_PORT3 0x07 1044 #define ENABLE_MBOX_REGION 0x0B 1045 1046 /* I/O Port Values */ 1047 #define ISSUE_BYTE 0x10 1048 #define ACK_BYTE 0x08 1049 #define ENABLE_INTR_BYTE 0xc0 1050 #define DISABLE_INTR_BYTE 0x00 1051 #define VALID_INTR_BYTE 0x40 1052 #define MBOX_BUSY_BYTE 0x10 1053 #define ENABLE_MBOX_BYTE 0x00 1054 1055 1056 /* Setup some port macros here */ 1057 #define issue_command(adapter) \ 1058 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) 1059 1060 #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) 1061 1062 #define set_irq_state(adapter, value) \ 1063 outb_p((value), (adapter)->base + INTR_PORT) 1064 1065 #define irq_ack(adapter) \ 1066 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) 1067 1068 #define irq_enable(adapter) \ 1069 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 1070 1071 #define irq_disable(adapter) \ 1072 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 1073 1074 1075 /* 1076 * This is our SYSDEP area. All kernel specific detail should be placed here - 1077 * as much as possible 1078 */ 1079 1080 /* 1081 * End of SYSDEP area 1082 */ 1083 1084 /* 1085 * ASSERT macro for megaraid. This should panic but printk should do for now 1086 */ 1087 #ifdef DEBUG 1088 #define ASSERT( expression ) \ 1089 if( !(expression) ) { \ 1090 panic("assertion failed: %s, file: %s, line: %d\n", \ 1091 #expression, __FILE__, __LINE__); \ 1092 } 1093 #else 1094 #define ASSERT(expression) 1095 #endif 1096 1097 #define MBOX_ABORT_SLEEP 60 1098 #define MBOX_RESET_SLEEP 30 1099 #define MBOX_RESET_WAIT 180 1100 1101 const char *megaraid_info (struct Scsi_Host *); 1102 1103 static int megaraid_detect(Scsi_Host_Template *); 1104 static void mega_find_card(Scsi_Host_Template *, u16, u16); 1105 static int mega_query_adapter(adapter_t *); 1106 static inline int issue_scb(adapter_t *, scb_t *); 1107 static int mega_setup_mailbox(adapter_t *); 1108 1109 static int megaraid_queue (Scsi_Cmnd *, void (*)(Scsi_Cmnd *)); 1110 static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *); 1111 static inline scb_t *mega_allocate_scb(adapter_t *, Scsi_Cmnd *); 1112 static void __mega_runpendq(adapter_t *); 1113 static inline void mega_runpendq(adapter_t *); 1114 static int issue_scb_block(adapter_t *, u_char *); 1115 1116 static void megaraid_isr_memmapped(int, void *, struct pt_regs *); 1117 static inline void megaraid_memmbox_ack_sequence(adapter_t *); 1118 static void megaraid_isr_iomapped(int, void *, struct pt_regs *); 1119 static inline void megaraid_iombox_ack_sequence(adapter_t *); 1120 1121 static void mega_free_scb(adapter_t *, scb_t *); 1122 1123 static int megaraid_release (struct Scsi_Host *); 1124 static int megaraid_command (Scsi_Cmnd *); 1125 static int megaraid_abort(Scsi_Cmnd *); 1126 static int megaraid_reset(Scsi_Cmnd *); 1127 1128 static int mega_build_sglist (adapter_t *adapter, scb_t *scb, 1129 u32 *buffer, u32 *length); 1130 static inline int mega_busywait_mbox (adapter_t *); 1131 static int __mega_busywait_mbox (adapter_t *); 1132 static inline void mega_cmd_done(adapter_t *, u8 [], int, int); 1133 static inline void mega_free_sgl (adapter_t *adapter); 1134 static void mega_8_to_40ld (mraid_inquiry *inquiry, 1135 mega_inquiry3 *enquiry3, mega_product_info *); 1136 1137 static int megaraid_reboot_notify (struct notifier_block *, 1138 unsigned long, void *); 1139 static int megadev_open (struct inode *, struct file *); 1140 1141 #if defined( __x86_64__) || defined(IA32_EMULATION) 1142 #ifndef __ia64__ 1143 #define LSI_CONFIG_COMPAT 1144 #endif 1145 #endif 1146 1147 1148 #ifdef LSI_CONFIG_COMPAT 1149 static int megadev_compat_ioctl(unsigned int, unsigned int, unsigned long, 1150 struct file *); 1151 #endif 1152 1153 static int megadev_ioctl_entry (struct inode *, struct file *, unsigned int, 1154 unsigned long); 1155 static int megadev_ioctl (struct inode *, struct file *, unsigned int, 1156 unsigned long); 1157 static int mega_m_to_n(void *, nitioctl_t *); 1158 static int mega_n_to_m(void *, megacmd_t *); 1159 static int megadev_close (struct inode *, struct file *); 1160 1161 static int mega_init_scb (adapter_t *); 1162 1163 static int mega_is_bios_enabled (adapter_t *); 1164 static void mega_reorder_hosts (void); 1165 static void mega_swap_hosts (struct Scsi_Host *, struct Scsi_Host *); 1166 1167 #ifdef CONFIG_PROC_FS 1168 static void mega_create_proc_entry(int, struct proc_dir_entry *); 1169 static int proc_read_config(char *, char **, off_t, int, int *, void *); 1170 static int proc_read_stat(char *, char **, off_t, int, int *, void *); 1171 static int proc_read_mbox(char *, char **, off_t, int, int *, void *); 1172 static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *); 1173 static int proc_battery(char *, char **, off_t, int, int *, void *); 1174 static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *); 1175 static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *); 1176 static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *); 1177 static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *); 1178 static int proc_pdrv(adapter_t *, char *, int); 1179 static int proc_rdrv_10(char *, char **, off_t, int, int *, void *); 1180 static int proc_rdrv_20(char *, char **, off_t, int, int *, void *); 1181 static int proc_rdrv_30(char *, char **, off_t, int, int *, void *); 1182 static int proc_rdrv_40(char *, char **, off_t, int, int *, void *); 1183 static int proc_rdrv(adapter_t *, char *, int, int); 1184 1185 static int mega_adapinq(adapter_t *, dma_addr_t); 1186 static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); 1187 static inline caddr_t mega_allocate_inquiry(dma_addr_t *, struct pci_dev *); 1188 static inline void mega_free_inquiry(caddr_t, dma_addr_t, struct pci_dev *); 1189 static int mega_print_inquiry(char *, char *); 1190 #endif 1191 1192 static int mega_support_ext_cdb(adapter_t *); 1193 static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, 1194 Scsi_Cmnd *, int, int); 1195 static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, 1196 scb_t *, Scsi_Cmnd *, int, int); 1197 static void mega_enum_raid_scsi(adapter_t *); 1198 static void mega_get_boot_drv(adapter_t *); 1199 static inline int mega_get_ldrv_num(adapter_t *, Scsi_Cmnd *, int); 1200 static int mega_support_random_del(adapter_t *); 1201 static int mega_del_logdrv(adapter_t *, int); 1202 static int mega_do_del_logdrv(adapter_t *, int); 1203 static void mega_get_max_sgl(adapter_t *); 1204 static int mega_internal_command(adapter_t *, lockscope_t, megacmd_t *, 1205 mega_passthru *); 1206 static void mega_internal_done(Scsi_Cmnd *); 1207 static int mega_support_cluster(adapter_t *); 1208 #endif 1209 1210 /* vi: set ts=8 sw=8 tw=78: */ 1211