1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __MEGARAID_H__ 3 #define __MEGARAID_H__ 4 5 #include <linux/spinlock.h> 6 #include <linux/mutex.h> 7 8 #define MEGARAID_VERSION \ 9 "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" 10 11 /* 12 * Driver features - change the values to enable or disable features in the 13 * driver. 14 */ 15 16 /* 17 * Command 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 #define MAX_DEV_TYPE 32 48 49 #define PCI_DEVICE_ID_DISCOVERY 0x000E 50 #define PCI_DEVICE_ID_PERC4_DI 0x000F 51 #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 52 53 #define HBA_SIGNATURE 0x3344 54 #define HBA_SIGNATURE_471 0xCCCC 55 #define HBA_SIGNATURE_64BIT 0x0299 56 57 #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for 58 mailbox to be free */ 59 #define DEFAULT_INITIATOR_ID 7 60 61 #define MAX_SGLIST 64 /* max supported in f/w */ 62 #define MIN_SGLIST 26 /* guaranteed to support these many */ 63 #define MAX_COMMANDS 126 64 #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS 65 is less than max commands 66 supported by any f/w */ 67 68 #define MAX_CDB_LEN 10 69 #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ 70 71 #define DEF_CMD_PER_LUN 63 72 #define MAX_CMD_PER_LUN MAX_COMMANDS 73 #define MAX_FIRMWARE_STATUS 46 74 #define MAX_XFER_PER_CMD (64*1024) 75 #define MAX_SECTORS_PER_IO 128 76 77 #define MAX_LOGICAL_DRIVES_40LD 40 78 #define FC_MAX_PHYSICAL_DEVICES 256 79 #define MAX_LOGICAL_DRIVES_8LD 8 80 #define MAX_CHANNELS 5 81 #define MAX_TARGET 15 82 #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET 83 #define MAX_ROW_SIZE_40LD 32 84 #define MAX_ROW_SIZE_8LD 8 85 #define MAX_SPAN_DEPTH 8 86 87 #define NVIRT_CHAN 4 /* # of virtual channels to represent 88 up to 60 logical drives */ 89 struct mbox_out { 90 /* 0x0 */ u8 cmd; 91 /* 0x1 */ u8 cmdid; 92 /* 0x2 */ u16 numsectors; 93 /* 0x4 */ u32 lba; 94 /* 0x8 */ u32 xferaddr; 95 /* 0xC */ u8 logdrv; 96 /* 0xD */ u8 numsgelements; 97 /* 0xE */ u8 resvd; 98 } __attribute__ ((packed)); 99 100 struct mbox_in { 101 /* 0xF */ volatile u8 busy; 102 /* 0x10 */ volatile u8 numstatus; 103 /* 0x11 */ volatile u8 status; 104 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; 105 volatile u8 poll; 106 volatile u8 ack; 107 } __attribute__ ((packed)); 108 109 typedef struct { 110 struct mbox_out m_out; 111 struct mbox_in m_in; 112 } __attribute__ ((packed)) mbox_t; 113 114 typedef struct { 115 u32 xfer_segment_lo; 116 u32 xfer_segment_hi; 117 mbox_t mbox; 118 } __attribute__ ((packed)) mbox64_t; 119 120 121 /* 122 * Passthru definitions 123 */ 124 #define MAX_REQ_SENSE_LEN 0x20 125 126 typedef struct { 127 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 128 u8 ars:1; 129 u8 reserved:3; 130 u8 islogical:1; 131 u8 logdrv; /* if islogical == 1 */ 132 u8 channel; /* if islogical == 0 */ 133 u8 target; /* if islogical == 0 */ 134 u8 queuetag; /* unused */ 135 u8 queueaction; /* unused */ 136 u8 cdb[MAX_CDB_LEN]; 137 u8 cdblen; 138 u8 reqsenselen; 139 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 140 u8 numsgelements; 141 u8 scsistatus; 142 u32 dataxferaddr; 143 u32 dataxferlen; 144 } __attribute__ ((packed)) mega_passthru; 145 146 147 /* 148 * Extended passthru: support CDB > 10 bytes 149 */ 150 typedef struct { 151 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 152 u8 ars:1; 153 u8 rsvd1:1; 154 u8 cd_rom:1; 155 u8 rsvd2:1; 156 u8 islogical:1; 157 u8 logdrv; /* if islogical == 1 */ 158 u8 channel; /* if islogical == 0 */ 159 u8 target; /* if islogical == 0 */ 160 u8 queuetag; /* unused */ 161 u8 queueaction; /* unused */ 162 u8 cdblen; 163 u8 rsvd3; 164 u8 cdb[MAX_EXT_CDB_LEN]; 165 u8 numsgelements; 166 u8 status; 167 u8 reqsenselen; 168 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 169 u8 rsvd4; 170 u32 dataxferaddr; 171 u32 dataxferlen; 172 } __attribute__ ((packed)) mega_ext_passthru; 173 174 typedef struct { 175 u64 address; 176 u32 length; 177 } __attribute__ ((packed)) mega_sgl64; 178 179 typedef struct { 180 u32 address; 181 u32 length; 182 } __attribute__ ((packed)) mega_sglist; 183 184 185 /* Queued command data */ 186 typedef struct { 187 int idx; 188 u32 state; 189 struct list_head list; 190 u8 raw_mbox[66]; 191 u32 dma_type; 192 u32 dma_direction; 193 194 struct scsi_cmnd *cmd; 195 dma_addr_t dma_h_bulkdata; 196 dma_addr_t dma_h_sgdata; 197 198 mega_sglist *sgl; 199 mega_sgl64 *sgl64; 200 dma_addr_t sgl_dma_addr; 201 202 mega_passthru *pthru; 203 dma_addr_t pthru_dma_addr; 204 mega_ext_passthru *epthru; 205 dma_addr_t epthru_dma_addr; 206 } scb_t; 207 208 /* 209 * Flags to follow the scb as it transitions between various stages 210 */ 211 #define SCB_FREE 0x0000 /* on the free list */ 212 #define SCB_ACTIVE 0x0001 /* off the free list */ 213 #define SCB_PENDQ 0x0002 /* on the pending queue */ 214 #define SCB_ISSUED 0x0004 /* issued - owner f/w */ 215 #define SCB_ABORT 0x0008 /* Got an abort for this one */ 216 #define SCB_RESET 0x0010 /* Got a reset for this one */ 217 218 /* 219 * Utilities declare this strcture size as 1024 bytes. So more fields can 220 * be added in future. 221 */ 222 typedef struct { 223 u32 data_size; /* current size in bytes (not including resvd) */ 224 225 u32 config_signature; 226 /* Current value is 0x00282008 227 * 0x28=MAX_LOGICAL_DRIVES, 228 * 0x20=Number of stripes and 229 * 0x08=Number of spans */ 230 231 u8 fw_version[16]; /* printable ASCI string */ 232 u8 bios_version[16]; /* printable ASCI string */ 233 u8 product_name[80]; /* printable ASCI string */ 234 235 u8 max_commands; /* Max. concurrent commands supported */ 236 u8 nchannels; /* Number of SCSI Channels detected */ 237 u8 fc_loop_present; /* Number of Fibre Loops detected */ 238 u8 mem_type; /* EDO, FPM, SDRAM etc */ 239 240 u32 signature; 241 u16 dram_size; /* In terms of MB */ 242 u16 subsysid; 243 244 u16 subsysvid; 245 u8 notify_counters; 246 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ 247 } __attribute__ ((packed)) mega_product_info; 248 249 struct notify { 250 u32 global_counter; /* Any change increments this counter */ 251 252 u8 param_counter; /* Indicates any params changed */ 253 u8 param_id; /* Param modified - defined below */ 254 u16 param_val; /* New val of last param modified */ 255 256 u8 write_config_counter; /* write config occurred */ 257 u8 write_config_rsvd[3]; 258 259 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ 260 u8 ldrv_opid; /* ldrv num */ 261 u8 ldrv_opcmd; /* ldrv operation - defined below */ 262 u8 ldrv_opstatus; /* status of the operation */ 263 264 u8 ldrv_state_counter; /* Indicates change of ldrv state */ 265 u8 ldrv_state_id; /* ldrv num */ 266 u8 ldrv_state_new; /* New state */ 267 u8 ldrv_state_old; /* old state */ 268 269 u8 pdrv_state_counter; /* Indicates change of ldrv state */ 270 u8 pdrv_state_id; /* pdrv id */ 271 u8 pdrv_state_new; /* New state */ 272 u8 pdrv_state_old; /* old state */ 273 274 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ 275 u8 pdrv_fmt_id; /* pdrv id */ 276 u8 pdrv_fmt_val; /* format started/over */ 277 u8 pdrv_fmt_rsvd; 278 279 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ 280 u8 targ_xfer_id; /* pdrv Id */ 281 u8 targ_xfer_val; /* new Xfer params of last pdrv */ 282 u8 targ_xfer_rsvd; 283 284 u8 fcloop_id_chg_counter; /* Indicates loopid changed */ 285 u8 fcloopid_pdrvid; /* pdrv id */ 286 u8 fcloop_id0; /* loopid on fc loop 0 */ 287 u8 fcloop_id1; /* loopid on fc loop 1 */ 288 289 u8 fcloop_state_counter; /* Indicates loop state changed */ 290 u8 fcloop_state0; /* state of fc loop 0 */ 291 u8 fcloop_state1; /* state of fc loop 1 */ 292 u8 fcloop_state_rsvd; 293 } __attribute__ ((packed)); 294 295 #define MAX_NOTIFY_SIZE 0x80 296 #define CUR_NOTIFY_SIZE sizeof(struct notify) 297 298 typedef struct { 299 u32 data_size; /* current size in bytes (not including resvd) */ 300 301 struct notify notify; 302 303 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; 304 305 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ 306 u8 cache_flush_interval; /* In terms of Seconds */ 307 u8 sense_alert; 308 u8 drive_insert_count; /* drive insertion count */ 309 310 u8 battery_status; 311 u8 num_ldrv; /* No. of Log Drives configured */ 312 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of 313 reconstruct */ 314 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv 315 Status */ 316 317 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ 318 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; 319 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ 320 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ 321 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; 322 323 u8 targ_xfer[80]; /* phys device transfer rate */ 324 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ 325 } __attribute__ ((packed)) mega_inquiry3; 326 327 328 /* Structures */ 329 typedef struct { 330 u8 max_commands; /* Max concurrent commands supported */ 331 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ 332 u8 max_targ_per_chan; /* Max targ per channel */ 333 u8 nchannels; /* Number of channels on HBA */ 334 u8 fw_version[4]; /* Firmware version */ 335 u16 age_of_flash; /* Number of times FW has been flashed */ 336 u8 chip_set_value; /* Contents of 0xC0000832 */ 337 u8 dram_size; /* In MB */ 338 u8 cache_flush_interval; /* in seconds */ 339 u8 bios_version[4]; 340 u8 board_type; 341 u8 sense_alert; 342 u8 write_config_count; /* Increase with every configuration 343 change */ 344 u8 drive_inserted_count; /* Increase with every drive inserted 345 */ 346 u8 inserted_drive; /* Channel:Id of inserted drive */ 347 u8 battery_status; /* 348 * BIT 0: battery module missing 349 * BIT 1: VBAD 350 * BIT 2: temperature high 351 * BIT 3: battery pack missing 352 * BIT 4,5: 353 * 00 - charge complete 354 * 01 - fast charge in progress 355 * 10 - fast charge fail 356 * 11 - undefined 357 * Bit 6: counter > 1000 358 * Bit 7: Undefined 359 */ 360 u8 dec_fault_bus_info; 361 } __attribute__ ((packed)) mega_adp_info; 362 363 364 typedef struct { 365 u8 num_ldrv; /* Number of logical drives configured */ 366 u8 rsvd[3]; 367 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; 368 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; 369 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; 370 } __attribute__ ((packed)) mega_ldrv_info; 371 372 typedef struct { 373 u8 pdrv_state[MAX_PHYSICAL_DRIVES]; 374 u8 rsvd; 375 } __attribute__ ((packed)) mega_pdrv_info; 376 377 /* RAID inquiry: Mailbox command 0x05*/ 378 typedef struct { 379 mega_adp_info adapter_info; 380 mega_ldrv_info logdrv_info; 381 mega_pdrv_info pdrv_info; 382 } __attribute__ ((packed)) mraid_inquiry; 383 384 385 /* RAID extended inquiry: Mailbox command 0x04*/ 386 typedef struct { 387 mraid_inquiry raid_inq; 388 u16 phys_drv_format[MAX_CHANNELS]; 389 u8 stack_attn; 390 u8 modem_status; 391 u8 rsvd[2]; 392 } __attribute__ ((packed)) mraid_ext_inquiry; 393 394 395 typedef struct { 396 u8 channel; 397 u8 target; 398 }__attribute__ ((packed)) adp_device; 399 400 typedef struct { 401 u32 start_blk; /* starting block */ 402 u32 num_blks; /* # of blocks */ 403 adp_device device[MAX_ROW_SIZE_40LD]; 404 }__attribute__ ((packed)) adp_span_40ld; 405 406 typedef struct { 407 u32 start_blk; /* starting block */ 408 u32 num_blks; /* # of blocks */ 409 adp_device device[MAX_ROW_SIZE_8LD]; 410 }__attribute__ ((packed)) adp_span_8ld; 411 412 typedef struct { 413 u8 span_depth; /* Total # of spans */ 414 u8 level; /* RAID level */ 415 u8 read_ahead; /* read ahead, no read ahead, adaptive read 416 ahead */ 417 u8 stripe_sz; /* Encoded stripe size */ 418 u8 status; /* Status of the logical drive */ 419 u8 write_mode; /* write mode, write_through/write_back */ 420 u8 direct_io; /* direct io or through cache */ 421 u8 row_size; /* Number of stripes in a row */ 422 } __attribute__ ((packed)) logdrv_param; 423 424 typedef struct { 425 logdrv_param lparam; 426 adp_span_40ld span[MAX_SPAN_DEPTH]; 427 }__attribute__ ((packed)) logdrv_40ld; 428 429 typedef struct { 430 logdrv_param lparam; 431 adp_span_8ld span[MAX_SPAN_DEPTH]; 432 }__attribute__ ((packed)) logdrv_8ld; 433 434 typedef struct { 435 u8 type; /* Type of the device */ 436 u8 cur_status; /* current status of the device */ 437 u8 tag_depth; /* Level of tagging */ 438 u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ 439 u32 size; /* configurable size in terms of 512 byte 440 blocks */ 441 }__attribute__ ((packed)) phys_drv; 442 443 typedef struct { 444 u8 nlog_drives; /* number of logical drives */ 445 u8 resvd[3]; 446 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; 447 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 448 }__attribute__ ((packed)) disk_array_40ld; 449 450 typedef struct { 451 u8 nlog_drives; /* number of logical drives */ 452 u8 resvd[3]; 453 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; 454 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 455 }__attribute__ ((packed)) disk_array_8ld; 456 457 458 /* 459 * User ioctl structure. 460 * This structure will be used for Traditional Method ioctl interface 461 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the 462 * Driver ioctls. 463 * The Driver ioctl interface handles the commands at the driver level, 464 * without being sent to the card. 465 */ 466 /* system call imposed limit. Change accordingly */ 467 #define IOCTL_MAX_DATALEN 4096 468 469 struct uioctl_t { 470 u32 inlen; 471 u32 outlen; 472 union { 473 u8 fca[16]; 474 struct { 475 u8 opcode; 476 u8 subopcode; 477 u16 adapno; 478 #if BITS_PER_LONG == 32 479 u8 *buffer; 480 u8 pad[4]; 481 #endif 482 #if BITS_PER_LONG == 64 483 u8 *buffer; 484 #endif 485 u32 length; 486 } __attribute__ ((packed)) fcs; 487 } __attribute__ ((packed)) ui; 488 u8 mbox[18]; /* 16 bytes + 2 status bytes */ 489 mega_passthru pthru; 490 #if BITS_PER_LONG == 32 491 char __user *data; /* buffer <= 4096 for 0x80 commands */ 492 char pad[4]; 493 #endif 494 #if BITS_PER_LONG == 64 495 char __user *data; 496 #endif 497 } __attribute__ ((packed)); 498 499 /* 500 * struct mcontroller is used to pass information about the controllers in the 501 * system. Its up to the application how to use the information. We are passing 502 * as much info about the cards as possible and useful. Before issuing the 503 * call to find information about the cards, the application needs to issue a 504 * ioctl first to find out the number of controllers in the system. 505 */ 506 #define MAX_CONTROLLERS 32 507 508 struct mcontroller { 509 u64 base; 510 u8 irq; 511 u8 numldrv; 512 u8 pcibus; 513 u16 pcidev; 514 u8 pcifun; 515 u16 pciid; 516 u16 pcivendor; 517 u8 pcislot; 518 u32 uid; 519 }; 520 521 /* 522 * mailbox structure used for internal commands 523 */ 524 typedef struct { 525 u8 cmd; 526 u8 cmdid; 527 u8 opcode; 528 u8 subopcode; 529 u32 lba; 530 u32 xferaddr; 531 u8 logdrv; 532 u8 rsvd[3]; 533 u8 numstatus; 534 u8 status; 535 } __attribute__ ((packed)) megacmd_t; 536 537 /* 538 * Defines for Driver IOCTL interface 539 */ 540 #define MEGAIOC_MAGIC 'm' 541 542 #define MEGAIOC_QNADAP 'm' /* Query # of adapters */ 543 #define MEGAIOC_QDRVRVER 'e' /* Query driver version */ 544 #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ 545 #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) 546 #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) 547 548 /* 549 * Definition for the new ioctl interface (NIT) 550 */ 551 552 /* 553 * Vendor specific Group-7 commands 554 */ 555 #define VENDOR_SPECIFIC_COMMANDS 0xE0 556 #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 557 558 /* 559 * The ioctl command. No other command shall be used for this interface 560 */ 561 #define USCSICMD VENDOR_SPECIFIC_COMMANDS 562 563 /* 564 * Data direction flags 565 */ 566 #define UIOC_RD 0x00001 567 #define UIOC_WR 0x00002 568 569 /* 570 * ioctl opcodes 571 */ 572 #define MBOX_CMD 0x00000 /* DCMD or passthru command */ 573 #define GET_DRIVER_VER 0x10000 /* Get driver version */ 574 #define GET_N_ADAP 0x20000 /* Get number of adapters */ 575 #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ 576 #define GET_CAP 0x40000 /* Get ioctl capabilities */ 577 #define GET_STATS 0x50000 /* Get statistics, including error info */ 578 579 580 /* 581 * The ioctl structure. 582 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and 583 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. 584 */ 585 typedef struct { 586 char signature[8]; /* Must contain "MEGANIT" */ 587 u32 opcode; /* opcode for the command */ 588 u32 adapno; /* adapter number */ 589 union { 590 u8 __raw_mbox[18]; 591 void __user *__uaddr; /* xferaddr for non-mbox cmds */ 592 }__ua; 593 594 #define uioc_rmbox __ua.__raw_mbox 595 #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) 596 #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) 597 #define uioc_uaddr __ua.__uaddr 598 599 u32 xferlen; /* xferlen for DCMD and non-mbox 600 commands */ 601 u32 flags; /* data direction flags */ 602 }nitioctl_t; 603 604 605 /* 606 * I/O statistics for some applications like SNMP agent. The caller must 607 * provide the number of logical drives for which status should be reported. 608 */ 609 typedef struct { 610 int num_ldrv; /* Number for logical drives for which the 611 status should be reported. */ 612 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for 613 each logical drive */ 614 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 615 read for each logical 616 drive */ 617 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes 618 for each logical 619 drive */ 620 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 621 writes for each 622 logical drive */ 623 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read 624 errors for each 625 logical drive */ 626 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write 627 errors for each 628 logical drive */ 629 }megastat_t; 630 631 632 struct private_bios_data { 633 u8 geometry:4; /* 634 * bits 0-3 - BIOS geometry 635 * 0x0001 - 1GB 636 * 0x0010 - 2GB 637 * 0x1000 - 8GB 638 * Others values are invalid 639 */ 640 u8 unused:4; /* bits 4-7 are unused */ 641 u8 boot_drv; /* 642 * logical drive set as boot drive 643 * 0..7 - for 8LD cards 644 * 0..39 - for 40LD cards 645 */ 646 u8 rsvd[12]; 647 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ 648 } __attribute__ ((packed)); 649 650 651 652 653 /* 654 * Mailbox and firmware commands and subopcodes used in this driver. 655 */ 656 657 #define MEGA_MBOXCMD_LREAD 0x01 658 #define MEGA_MBOXCMD_LWRITE 0x02 659 #define MEGA_MBOXCMD_PASSTHRU 0x03 660 #define MEGA_MBOXCMD_ADPEXTINQ 0x04 661 #define MEGA_MBOXCMD_ADAPTERINQ 0x05 662 #define MEGA_MBOXCMD_LREAD64 0xA7 663 #define MEGA_MBOXCMD_LWRITE64 0xA8 664 #define MEGA_MBOXCMD_PASSTHRU64 0xC3 665 #define MEGA_MBOXCMD_EXTPTHRU 0xE3 666 667 #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ 668 #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ 669 670 #define FC_NEW_CONFIG 0xA1 671 #define NC_SUBOP_PRODUCT_INFO 0x0E 672 #define NC_SUBOP_ENQUIRY3 0x0F 673 #define ENQ3_GET_SOLICITED_FULL 0x02 674 #define OP_DCMD_READ_CONFIG 0x04 675 #define NEW_READ_CONFIG_8LD 0x67 676 #define READ_CONFIG_8LD 0x07 677 #define FLUSH_ADAPTER 0x0A 678 #define FLUSH_SYSTEM 0xFE 679 680 /* 681 * Command for random deletion of logical drives 682 */ 683 #define FC_DEL_LOGDRV 0xA4 /* f/w command */ 684 #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ 685 #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ 686 #define OP_DEL_LOGDRV 0x1C /* delete logical drive */ 687 688 /* 689 * BIOS commands 690 */ 691 #define IS_BIOS_ENABLED 0x62 692 #define GET_BIOS 0x01 693 #define CHNL_CLASS 0xA9 694 #define GET_CHNL_CLASS 0x00 695 #define SET_CHNL_CLASS 0x01 696 #define CH_RAID 0x01 697 #define CH_SCSI 0x00 698 #define BIOS_PVT_DATA 0x40 699 #define GET_BIOS_PVT_DATA 0x00 700 701 702 /* 703 * Commands to support clustering 704 */ 705 #define MEGA_GET_TARGET_ID 0x7D 706 #define MEGA_CLUSTER_OP 0x70 707 #define MEGA_GET_CLUSTER_MODE 0x02 708 #define MEGA_CLUSTER_CMD 0x6E 709 #define MEGA_RESERVE_LD 0x01 710 #define MEGA_RELEASE_LD 0x02 711 #define MEGA_RESET_RESERVATIONS 0x03 712 #define MEGA_RESERVATION_STATUS 0x04 713 #define MEGA_RESERVE_PD 0x05 714 #define MEGA_RELEASE_PD 0x06 715 716 717 /* 718 * Module battery status 719 */ 720 #define MEGA_BATT_MODULE_MISSING 0x01 721 #define MEGA_BATT_LOW_VOLTAGE 0x02 722 #define MEGA_BATT_TEMP_HIGH 0x04 723 #define MEGA_BATT_PACK_MISSING 0x08 724 #define MEGA_BATT_CHARGE_MASK 0x30 725 #define MEGA_BATT_CHARGE_DONE 0x00 726 #define MEGA_BATT_CHARGE_INPROG 0x10 727 #define MEGA_BATT_CHARGE_FAIL 0x20 728 #define MEGA_BATT_CYCLES_EXCEEDED 0x40 729 730 /* 731 * Physical drive states. 732 */ 733 #define PDRV_UNCNF 0 734 #define PDRV_ONLINE 3 735 #define PDRV_FAILED 4 736 #define PDRV_RBLD 5 737 #define PDRV_HOTSPARE 6 738 739 740 /* 741 * Raid logical drive states. 742 */ 743 #define RDRV_OFFLINE 0 744 #define RDRV_DEGRADED 1 745 #define RDRV_OPTIMAL 2 746 #define RDRV_DELETED 3 747 748 /* 749 * Read, write and cache policies 750 */ 751 #define NO_READ_AHEAD 0 752 #define READ_AHEAD 1 753 #define ADAP_READ_AHEAD 2 754 #define WRMODE_WRITE_THRU 0 755 #define WRMODE_WRITE_BACK 1 756 #define CACHED_IO 0 757 #define DIRECT_IO 1 758 759 760 #define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) 761 762 /* 763 * Each controller's soft state 764 */ 765 typedef struct { 766 int this_id; /* our id, may set to different than 7 if 767 clustering is available */ 768 u32 flag; 769 770 unsigned long base; 771 void __iomem *mmio_base; 772 773 /* mbox64 with mbox not aligned on 16-byte boundary */ 774 mbox64_t *una_mbox64; 775 dma_addr_t una_mbox64_dma; 776 777 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ 778 volatile mbox_t *mbox; /* ptr to standard mailbox */ 779 dma_addr_t mbox_dma; 780 781 struct pci_dev *dev; 782 783 struct list_head free_list; 784 struct list_head pending_list; 785 struct list_head completed_list; 786 787 struct Scsi_Host *host; 788 789 #define MEGA_BUFFER_SIZE (2*1024) 790 u8 *mega_buffer; 791 dma_addr_t buf_dma_handle; 792 793 mega_product_info product_info; 794 795 u8 max_cmds; 796 scb_t *scb_list; 797 798 atomic_t pend_cmds; /* maintain a counter for pending 799 commands in firmware */ 800 801 #if MEGA_HAVE_STATS 802 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; 803 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; 804 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; 805 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; 806 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; 807 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; 808 #endif 809 810 /* Host adapter parameters */ 811 u8 numldrv; 812 u8 fw_version[7]; 813 u8 bios_version[7]; 814 815 #ifdef CONFIG_PROC_FS 816 struct proc_dir_entry *controller_proc_dir_entry; 817 #endif 818 819 int has_64bit_addr; /* are we using 64-bit addressing */ 820 int support_ext_cdb; 821 int boot_ldrv_enabled; 822 int boot_ldrv; 823 int boot_pdrv_enabled; /* boot from physical drive */ 824 int boot_pdrv_ch; /* boot physical drive channel */ 825 int boot_pdrv_tgt; /* boot physical drive target */ 826 827 828 int support_random_del; /* Do we support random deletion of 829 logdrvs */ 830 int read_ldidmap; /* set after logical drive deltion. The 831 logical drive number must be read from the 832 map */ 833 atomic_t quiescent; /* a stage reached when delete logical 834 drive needs to be done. Stop 835 sending requests to the hba till 836 delete operation is completed */ 837 spinlock_t lock; 838 839 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on 840 what channels. */ 841 int mega_ch_class; 842 843 u8 sglen; /* f/w supported scatter-gather list length */ 844 845 scb_t int_scb; 846 struct mutex int_mtx; /* To synchronize the internal 847 commands */ 848 int int_status; /* status of internal cmd */ 849 struct completion int_waitq; /* wait queue for internal 850 cmds */ 851 852 int has_cluster; /* cluster support on this HBA */ 853 }adapter_t; 854 855 856 struct mega_hbas { 857 int is_bios_enabled; 858 adapter_t *hostdata_addr; 859 }; 860 861 862 /* 863 * For state flag. Do not use LSB(8 bits) which are 864 * reserved for storing info about channels. 865 */ 866 #define IN_ABORT 0x80000000L 867 #define IN_RESET 0x40000000L 868 #define BOARD_MEMMAP 0x20000000L 869 #define BOARD_IOMAP 0x10000000L 870 #define BOARD_40LD 0x08000000L 871 #define BOARD_64BIT 0x04000000L 872 873 #define INTR_VALID 0x40 874 875 #define PCI_CONF_AMISIG 0xa0 876 #define PCI_CONF_AMISIG64 0xa4 877 878 879 #define MEGA_DMA_TYPE_NONE 0xFFFF 880 #define MEGA_BULK_DATA 0x0001 881 #define MEGA_SGLIST 0x0002 882 883 /* 884 * Parameters for the io-mapped controllers 885 */ 886 887 /* I/O Port offsets */ 888 #define CMD_PORT 0x00 889 #define ACK_PORT 0x00 890 #define TOGGLE_PORT 0x01 891 #define INTR_PORT 0x0a 892 893 #define MBOX_BUSY_PORT 0x00 894 #define MBOX_PORT0 0x04 895 #define MBOX_PORT1 0x05 896 #define MBOX_PORT2 0x06 897 #define MBOX_PORT3 0x07 898 #define ENABLE_MBOX_REGION 0x0B 899 900 /* I/O Port Values */ 901 #define ISSUE_BYTE 0x10 902 #define ACK_BYTE 0x08 903 #define ENABLE_INTR_BYTE 0xc0 904 #define DISABLE_INTR_BYTE 0x00 905 #define VALID_INTR_BYTE 0x40 906 #define MBOX_BUSY_BYTE 0x10 907 #define ENABLE_MBOX_BYTE 0x00 908 909 910 /* Setup some port macros here */ 911 #define issue_command(adapter) \ 912 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) 913 914 #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) 915 916 #define set_irq_state(adapter, value) \ 917 outb_p((value), (adapter)->base + INTR_PORT) 918 919 #define irq_ack(adapter) \ 920 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) 921 922 #define irq_enable(adapter) \ 923 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 924 925 #define irq_disable(adapter) \ 926 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 927 928 929 /* 930 * This is our SYSDEP area. All kernel specific detail should be placed here - 931 * as much as possible 932 */ 933 934 /* 935 * End of SYSDEP area 936 */ 937 938 const char *megaraid_info (struct Scsi_Host *); 939 940 static int mega_query_adapter(adapter_t *); 941 static int issue_scb(adapter_t *, scb_t *); 942 static int mega_setup_mailbox(adapter_t *); 943 944 static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); 945 static scb_t * mega_build_cmd(adapter_t *, struct scsi_cmnd *, int *); 946 static void __mega_runpendq(adapter_t *); 947 static int issue_scb_block(adapter_t *, u_char *); 948 949 static irqreturn_t megaraid_isr_memmapped(int, void *); 950 static irqreturn_t megaraid_isr_iomapped(int, void *); 951 952 static void mega_free_scb(adapter_t *, scb_t *); 953 954 static int megaraid_abort(struct scsi_cmnd *); 955 static int megaraid_reset(struct scsi_cmnd *); 956 static int megaraid_abort_and_reset(adapter_t *, struct scsi_cmnd *, int); 957 static int megaraid_biosparam(struct scsi_device *, struct block_device *, 958 sector_t, int []); 959 960 static int mega_build_sglist (adapter_t *adapter, scb_t *scb, 961 u32 *buffer, u32 *length); 962 static int __mega_busywait_mbox (adapter_t *); 963 static void mega_rundoneq (adapter_t *); 964 static void mega_cmd_done(adapter_t *, u8 [], int, int); 965 static inline void mega_free_sgl (adapter_t *adapter); 966 static void mega_8_to_40ld (mraid_inquiry *inquiry, 967 mega_inquiry3 *enquiry3, mega_product_info *); 968 969 static int megadev_open (struct inode *, struct file *); 970 static int megadev_ioctl (struct file *, unsigned int, unsigned long); 971 static int mega_m_to_n(void __user *, nitioctl_t *); 972 static int mega_n_to_m(void __user *, megacmd_t *); 973 974 static int mega_init_scb (adapter_t *); 975 976 static int mega_is_bios_enabled (adapter_t *); 977 978 #ifdef CONFIG_PROC_FS 979 static void mega_create_proc_entry(int, struct proc_dir_entry *); 980 static int mega_adapinq(adapter_t *, dma_addr_t); 981 static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); 982 #endif 983 984 static int mega_support_ext_cdb(adapter_t *); 985 static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, 986 struct scsi_cmnd *, int, int); 987 static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, 988 scb_t *, struct scsi_cmnd *, int, int); 989 static void mega_enum_raid_scsi(adapter_t *); 990 static void mega_get_boot_drv(adapter_t *); 991 static int mega_support_random_del(adapter_t *); 992 static int mega_del_logdrv(adapter_t *, int); 993 static int mega_do_del_logdrv(adapter_t *, int); 994 static void mega_get_max_sgl(adapter_t *); 995 static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); 996 static int mega_support_cluster(adapter_t *); 997 #endif 998 999 /* vi: set ts=8 sw=8 tw=78: */ 1000
