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#include <scsi/scsi_cmnd.h> 8 9#define MEGARAID_VERSION \ 10 "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" 11 12/* 13 * Driver features - change the values to enable or disable features in the 14 * driver. 15 */ 16 17/* 18 * Command coalescing - This feature allows the driver to be able to combine 19 * two or more commands and issue as one command in order to boost I/O 20 * performance. Useful if the nature of the I/O is sequential. It is not very 21 * useful for random natured I/Os. 22 */ 23#define MEGA_HAVE_COALESCING 0 24 25/* 26 * Clustering support - Set this flag if you are planning to use the 27 * clustering services provided by the megaraid controllers and planning to 28 * setup a cluster 29 */ 30#define MEGA_HAVE_CLUSTERING 1 31 32/* 33 * Driver statistics - Set this flag if you are interested in statics about 34 * number of I/O completed on each logical drive and how many interrupts 35 * generated. If enabled, this information is available through /proc 36 * interface and through the private ioctl. Setting this flag has a 37 * performance penalty. 38 */ 39#define MEGA_HAVE_STATS 0 40 41/* 42 * Enhanced /proc interface - This feature will allow you to have a more 43 * detailed /proc interface for megaraid driver. E.g., a real time update of 44 * the status of the logical drives, battery status, physical drives etc. 45 */ 46#define MEGA_HAVE_ENH_PROC 1 47 48#define MAX_DEV_TYPE 32 49 50#define PCI_DEVICE_ID_DISCOVERY 0x000E 51#define PCI_DEVICE_ID_PERC4_DI 0x000F 52#define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 53 54#define HBA_SIGNATURE 0x3344 55#define HBA_SIGNATURE_471 0xCCCC 56#define HBA_SIGNATURE_64BIT 0x0299 57 58#define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for 59 mailbox to be free */ 60#define DEFAULT_INITIATOR_ID 7 61 62#define MAX_SGLIST 64 /* max supported in f/w */ 63#define MIN_SGLIST 26 /* guaranteed to support these many */ 64#define MAX_COMMANDS 126 65#define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS 66 is less than max commands 67 supported by any f/w */ 68 69#define MAX_CDB_LEN 10 70#define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ 71 72#define DEF_CMD_PER_LUN 63 73#define MAX_CMD_PER_LUN MAX_COMMANDS 74#define MAX_FIRMWARE_STATUS 46 75#define MAX_XFER_PER_CMD (64*1024) 76#define MAX_SECTORS_PER_IO 128 77 78#define MAX_LOGICAL_DRIVES_40LD 40 79#define FC_MAX_PHYSICAL_DEVICES 256 80#define MAX_LOGICAL_DRIVES_8LD 8 81#define MAX_CHANNELS 5 82#define MAX_TARGET 15 83#define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET 84#define MAX_ROW_SIZE_40LD 32 85#define MAX_ROW_SIZE_8LD 8 86#define MAX_SPAN_DEPTH 8 87 88#define NVIRT_CHAN 4 /* # of virtual channels to represent 89 up to 60 logical drives */ 90struct mbox_out { 91 /* 0x0 */ u8 cmd; 92 /* 0x1 */ u8 cmdid; 93 /* 0x2 */ u16 numsectors; 94 /* 0x4 */ u32 lba; 95 /* 0x8 */ u32 xferaddr; 96 /* 0xC */ u8 logdrv; 97 /* 0xD */ u8 numsgelements; 98 /* 0xE */ u8 resvd; 99} __attribute__ ((packed)); 100 101struct mbox_in { 102 /* 0xF */ volatile u8 busy; 103 /* 0x10 */ volatile u8 numstatus; 104 /* 0x11 */ volatile u8 status; 105 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; 106 volatile u8 poll; 107 volatile u8 ack; 108} __attribute__ ((packed)); 109 110typedef struct { 111 struct mbox_out m_out; 112 struct mbox_in m_in; 113} __attribute__ ((packed)) mbox_t; 114 115typedef struct { 116 u32 xfer_segment_lo; 117 u32 xfer_segment_hi; 118 mbox_t mbox; 119} __attribute__ ((packed)) mbox64_t; 120 121 122/* 123 * Passthru definitions 124 */ 125#define MAX_REQ_SENSE_LEN 0x20 126 127typedef struct { 128 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 129 u8 ars:1; 130 u8 reserved:3; 131 u8 islogical:1; 132 u8 logdrv; /* if islogical == 1 */ 133 u8 channel; /* if islogical == 0 */ 134 u8 target; /* if islogical == 0 */ 135 u8 queuetag; /* unused */ 136 u8 queueaction; /* unused */ 137 u8 cdb[MAX_CDB_LEN]; 138 u8 cdblen; 139 u8 reqsenselen; 140 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 141 u8 numsgelements; 142 u8 scsistatus; 143 u32 dataxferaddr; 144 u32 dataxferlen; 145} __attribute__ ((packed)) mega_passthru; 146 147 148/* 149 * Extended passthru: support CDB > 10 bytes 150 */ 151typedef struct { 152 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ 153 u8 ars:1; 154 u8 rsvd1:1; 155 u8 cd_rom:1; 156 u8 rsvd2:1; 157 u8 islogical:1; 158 u8 logdrv; /* if islogical == 1 */ 159 u8 channel; /* if islogical == 0 */ 160 u8 target; /* if islogical == 0 */ 161 u8 queuetag; /* unused */ 162 u8 queueaction; /* unused */ 163 u8 cdblen; 164 u8 rsvd3; 165 u8 cdb[MAX_EXT_CDB_LEN]; 166 u8 numsgelements; 167 u8 status; 168 u8 reqsenselen; 169 u8 reqsensearea[MAX_REQ_SENSE_LEN]; 170 u8 rsvd4; 171 u32 dataxferaddr; 172 u32 dataxferlen; 173} __attribute__ ((packed)) mega_ext_passthru; 174 175typedef struct { 176 u64 address; 177 u32 length; 178} __attribute__ ((packed)) mega_sgl64; 179 180typedef struct { 181 u32 address; 182 u32 length; 183} __attribute__ ((packed)) mega_sglist; 184 185 186/* Queued command data */ 187typedef struct { 188 int idx; 189 u32 state; 190 struct list_head list; 191 u8 raw_mbox[66]; 192 u32 dma_type; 193 u32 dma_direction; 194 195 struct scsi_cmnd *cmd; 196 dma_addr_t dma_h_bulkdata; 197 dma_addr_t dma_h_sgdata; 198 199 mega_sglist *sgl; 200 mega_sgl64 *sgl64; 201 dma_addr_t sgl_dma_addr; 202 203 mega_passthru *pthru; 204 dma_addr_t pthru_dma_addr; 205 mega_ext_passthru *epthru; 206 dma_addr_t epthru_dma_addr; 207} scb_t; 208 209/* 210 * Flags to follow the scb as it transitions between various stages 211 */ 212#define SCB_FREE 0x0000 /* on the free list */ 213#define SCB_ACTIVE 0x0001 /* off the free list */ 214#define SCB_PENDQ 0x0002 /* on the pending queue */ 215#define SCB_ISSUED 0x0004 /* issued - owner f/w */ 216#define SCB_ABORT 0x0008 /* Got an abort for this one */ 217#define SCB_RESET 0x0010 /* Got a reset for this one */ 218 219/* 220 * Utilities declare this strcture size as 1024 bytes. So more fields can 221 * be added in future. 222 */ 223typedef struct { 224 u32 data_size; /* current size in bytes (not including resvd) */ 225 226 u32 config_signature; 227 /* Current value is 0x00282008 228 * 0x28=MAX_LOGICAL_DRIVES, 229 * 0x20=Number of stripes and 230 * 0x08=Number of spans */ 231 232 u8 fw_version[16]; /* printable ASCI string */ 233 u8 bios_version[16]; /* printable ASCI string */ 234 u8 product_name[80]; /* printable ASCI string */ 235 236 u8 max_commands; /* Max. concurrent commands supported */ 237 u8 nchannels; /* Number of SCSI Channels detected */ 238 u8 fc_loop_present; /* Number of Fibre Loops detected */ 239 u8 mem_type; /* EDO, FPM, SDRAM etc */ 240 241 u32 signature; 242 u16 dram_size; /* In terms of MB */ 243 u16 subsysid; 244 245 u16 subsysvid; 246 u8 notify_counters; 247 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ 248} __attribute__ ((packed)) mega_product_info; 249 250struct notify { 251 u32 global_counter; /* Any change increments this counter */ 252 253 u8 param_counter; /* Indicates any params changed */ 254 u8 param_id; /* Param modified - defined below */ 255 u16 param_val; /* New val of last param modified */ 256 257 u8 write_config_counter; /* write config occurred */ 258 u8 write_config_rsvd[3]; 259 260 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ 261 u8 ldrv_opid; /* ldrv num */ 262 u8 ldrv_opcmd; /* ldrv operation - defined below */ 263 u8 ldrv_opstatus; /* status of the operation */ 264 265 u8 ldrv_state_counter; /* Indicates change of ldrv state */ 266 u8 ldrv_state_id; /* ldrv num */ 267 u8 ldrv_state_new; /* New state */ 268 u8 ldrv_state_old; /* old state */ 269 270 u8 pdrv_state_counter; /* Indicates change of ldrv state */ 271 u8 pdrv_state_id; /* pdrv id */ 272 u8 pdrv_state_new; /* New state */ 273 u8 pdrv_state_old; /* old state */ 274 275 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ 276 u8 pdrv_fmt_id; /* pdrv id */ 277 u8 pdrv_fmt_val; /* format started/over */ 278 u8 pdrv_fmt_rsvd; 279 280 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ 281 u8 targ_xfer_id; /* pdrv Id */ 282 u8 targ_xfer_val; /* new Xfer params of last pdrv */ 283 u8 targ_xfer_rsvd; 284 285 u8 fcloop_id_chg_counter; /* Indicates loopid changed */ 286 u8 fcloopid_pdrvid; /* pdrv id */ 287 u8 fcloop_id0; /* loopid on fc loop 0 */ 288 u8 fcloop_id1; /* loopid on fc loop 1 */ 289 290 u8 fcloop_state_counter; /* Indicates loop state changed */ 291 u8 fcloop_state0; /* state of fc loop 0 */ 292 u8 fcloop_state1; /* state of fc loop 1 */ 293 u8 fcloop_state_rsvd; 294} __attribute__ ((packed)); 295 296#define MAX_NOTIFY_SIZE 0x80 297#define CUR_NOTIFY_SIZE sizeof(struct notify) 298 299typedef struct { 300 u32 data_size; /* current size in bytes (not including resvd) */ 301 302 struct notify notify; 303 304 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; 305 306 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ 307 u8 cache_flush_interval; /* In terms of Seconds */ 308 u8 sense_alert; 309 u8 drive_insert_count; /* drive insertion count */ 310 311 u8 battery_status; 312 u8 num_ldrv; /* No. of Log Drives configured */ 313 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of 314 reconstruct */ 315 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv 316 Status */ 317 318 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ 319 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; 320 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ 321 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ 322 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; 323 324 u8 targ_xfer[80]; /* phys device transfer rate */ 325 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ 326} __attribute__ ((packed)) mega_inquiry3; 327 328 329/* Structures */ 330typedef struct { 331 u8 max_commands; /* Max concurrent commands supported */ 332 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ 333 u8 max_targ_per_chan; /* Max targ per channel */ 334 u8 nchannels; /* Number of channels on HBA */ 335 u8 fw_version[4]; /* Firmware version */ 336 u16 age_of_flash; /* Number of times FW has been flashed */ 337 u8 chip_set_value; /* Contents of 0xC0000832 */ 338 u8 dram_size; /* In MB */ 339 u8 cache_flush_interval; /* in seconds */ 340 u8 bios_version[4]; 341 u8 board_type; 342 u8 sense_alert; 343 u8 write_config_count; /* Increase with every configuration 344 change */ 345 u8 drive_inserted_count; /* Increase with every drive inserted 346 */ 347 u8 inserted_drive; /* Channel:Id of inserted drive */ 348 u8 battery_status; /* 349 * BIT 0: battery module missing 350 * BIT 1: VBAD 351 * BIT 2: temperature high 352 * BIT 3: battery pack missing 353 * BIT 4,5: 354 * 00 - charge complete 355 * 01 - fast charge in progress 356 * 10 - fast charge fail 357 * 11 - undefined 358 * Bit 6: counter > 1000 359 * Bit 7: Undefined 360 */ 361 u8 dec_fault_bus_info; 362} __attribute__ ((packed)) mega_adp_info; 363 364 365typedef struct { 366 u8 num_ldrv; /* Number of logical drives configured */ 367 u8 rsvd[3]; 368 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; 369 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; 370 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; 371} __attribute__ ((packed)) mega_ldrv_info; 372 373typedef struct { 374 u8 pdrv_state[MAX_PHYSICAL_DRIVES]; 375 u8 rsvd; 376} __attribute__ ((packed)) mega_pdrv_info; 377 378/* RAID inquiry: Mailbox command 0x05*/ 379typedef struct { 380 mega_adp_info adapter_info; 381 mega_ldrv_info logdrv_info; 382 mega_pdrv_info pdrv_info; 383} __attribute__ ((packed)) mraid_inquiry; 384 385 386/* RAID extended inquiry: Mailbox command 0x04*/ 387typedef struct { 388 mraid_inquiry raid_inq; 389 u16 phys_drv_format[MAX_CHANNELS]; 390 u8 stack_attn; 391 u8 modem_status; 392 u8 rsvd[2]; 393} __attribute__ ((packed)) mraid_ext_inquiry; 394 395 396typedef struct { 397 u8 channel; 398 u8 target; 399}__attribute__ ((packed)) adp_device; 400 401typedef struct { 402 u32 start_blk; /* starting block */ 403 u32 num_blks; /* # of blocks */ 404 adp_device device[MAX_ROW_SIZE_40LD]; 405}__attribute__ ((packed)) adp_span_40ld; 406 407typedef struct { 408 u32 start_blk; /* starting block */ 409 u32 num_blks; /* # of blocks */ 410 adp_device device[MAX_ROW_SIZE_8LD]; 411}__attribute__ ((packed)) adp_span_8ld; 412 413typedef struct { 414 u8 span_depth; /* Total # of spans */ 415 u8 level; /* RAID level */ 416 u8 read_ahead; /* read ahead, no read ahead, adaptive read 417 ahead */ 418 u8 stripe_sz; /* Encoded stripe size */ 419 u8 status; /* Status of the logical drive */ 420 u8 write_mode; /* write mode, write_through/write_back */ 421 u8 direct_io; /* direct io or through cache */ 422 u8 row_size; /* Number of stripes in a row */ 423} __attribute__ ((packed)) logdrv_param; 424 425typedef struct { 426 logdrv_param lparam; 427 adp_span_40ld span[MAX_SPAN_DEPTH]; 428}__attribute__ ((packed)) logdrv_40ld; 429 430typedef struct { 431 logdrv_param lparam; 432 adp_span_8ld span[MAX_SPAN_DEPTH]; 433}__attribute__ ((packed)) logdrv_8ld; 434 435typedef struct { 436 u8 type; /* Type of the device */ 437 u8 cur_status; /* current status of the device */ 438 u8 tag_depth; /* Level of tagging */ 439 u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ 440 u32 size; /* configurable size in terms of 512 byte 441 blocks */ 442}__attribute__ ((packed)) phys_drv; 443 444typedef struct { 445 u8 nlog_drives; /* number of logical drives */ 446 u8 resvd[3]; 447 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; 448 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 449}__attribute__ ((packed)) disk_array_40ld; 450 451typedef struct { 452 u8 nlog_drives; /* number of logical drives */ 453 u8 resvd[3]; 454 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; 455 phys_drv pdrv[MAX_PHYSICAL_DRIVES]; 456}__attribute__ ((packed)) disk_array_8ld; 457 458 459/* 460 * User ioctl structure. 461 * This structure will be used for Traditional Method ioctl interface 462 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the 463 * Driver ioctls. 464 * The Driver ioctl interface handles the commands at the driver level, 465 * without being sent to the card. 466 */ 467/* system call imposed limit. Change accordingly */ 468#define IOCTL_MAX_DATALEN 4096 469 470struct uioctl_t { 471 u32 inlen; 472 u32 outlen; 473 union { 474 u8 fca[16]; 475 struct { 476 u8 opcode; 477 u8 subopcode; 478 u16 adapno; 479#if BITS_PER_LONG == 32 480 u8 *buffer; 481 u8 pad[4]; 482#endif 483#if BITS_PER_LONG == 64 484 u8 *buffer; 485#endif 486 u32 length; 487 } __attribute__ ((packed)) fcs; 488 } __attribute__ ((packed)) ui; 489 u8 mbox[18]; /* 16 bytes + 2 status bytes */ 490 mega_passthru pthru; 491#if BITS_PER_LONG == 32 492 char __user *data; /* buffer <= 4096 for 0x80 commands */ 493 char pad[4]; 494#endif 495#if BITS_PER_LONG == 64 496 char __user *data; 497#endif 498} __attribute__ ((packed)); 499 500/* 501 * struct mcontroller is used to pass information about the controllers in the 502 * system. Its up to the application how to use the information. We are passing 503 * as much info about the cards as possible and useful. Before issuing the 504 * call to find information about the cards, the application needs to issue a 505 * ioctl first to find out the number of controllers in the system. 506 */ 507#define MAX_CONTROLLERS 32 508 509struct mcontroller { 510 u64 base; 511 u8 irq; 512 u8 numldrv; 513 u8 pcibus; 514 u16 pcidev; 515 u8 pcifun; 516 u16 pciid; 517 u16 pcivendor; 518 u8 pcislot; 519 u32 uid; 520}; 521 522/* 523 * mailbox structure used for internal commands 524 */ 525typedef struct { 526 u8 cmd; 527 u8 cmdid; 528 u8 opcode; 529 u8 subopcode; 530 u32 lba; 531 u32 xferaddr; 532 u8 logdrv; 533 u8 rsvd[3]; 534 u8 numstatus; 535 u8 status; 536} __attribute__ ((packed)) megacmd_t; 537 538/* 539 * Defines for Driver IOCTL interface 540 */ 541#define MEGAIOC_MAGIC 'm' 542 543#define MEGAIOC_QNADAP 'm' /* Query # of adapters */ 544#define MEGAIOC_QDRVRVER 'e' /* Query driver version */ 545#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ 546#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) 547#define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) 548 549/* 550 * Definition for the new ioctl interface (NIT) 551 */ 552 553/* 554 * Vendor specific Group-7 commands 555 */ 556#define VENDOR_SPECIFIC_COMMANDS 0xE0 557#define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 558 559/* 560 * The ioctl command. No other command shall be used for this interface 561 */ 562#define USCSICMD VENDOR_SPECIFIC_COMMANDS 563 564/* 565 * Data direction flags 566 */ 567#define UIOC_RD 0x00001 568#define UIOC_WR 0x00002 569 570/* 571 * ioctl opcodes 572 */ 573#define MBOX_CMD 0x00000 /* DCMD or passthru command */ 574#define GET_DRIVER_VER 0x10000 /* Get driver version */ 575#define GET_N_ADAP 0x20000 /* Get number of adapters */ 576#define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ 577#define GET_CAP 0x40000 /* Get ioctl capabilities */ 578#define GET_STATS 0x50000 /* Get statistics, including error info */ 579 580 581/* 582 * The ioctl structure. 583 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and 584 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. 585 */ 586typedef struct { 587 char signature[8]; /* Must contain "MEGANIT" */ 588 u32 opcode; /* opcode for the command */ 589 u32 adapno; /* adapter number */ 590 union { 591 u8 __raw_mbox[18]; 592 void __user *__uaddr; /* xferaddr for non-mbox cmds */ 593 }__ua; 594 595#define uioc_rmbox __ua.__raw_mbox 596#define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) 597#define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) 598#define uioc_uaddr __ua.__uaddr 599 600 u32 xferlen; /* xferlen for DCMD and non-mbox 601 commands */ 602 u32 flags; /* data direction flags */ 603}nitioctl_t; 604 605 606/* 607 * I/O statistics for some applications like SNMP agent. The caller must 608 * provide the number of logical drives for which status should be reported. 609 */ 610typedef struct { 611 int num_ldrv; /* Number for logical drives for which the 612 status should be reported. */ 613 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for 614 each logical drive */ 615 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 616 read for each logical 617 drive */ 618 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes 619 for each logical 620 drive */ 621 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks 622 writes for each 623 logical drive */ 624 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read 625 errors for each 626 logical drive */ 627 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write 628 errors for each 629 logical drive */ 630}megastat_t; 631 632 633struct private_bios_data { 634 u8 geometry:4; /* 635 * bits 0-3 - BIOS geometry 636 * 0x0001 - 1GB 637 * 0x0010 - 2GB 638 * 0x1000 - 8GB 639 * Others values are invalid 640 */ 641 u8 unused:4; /* bits 4-7 are unused */ 642 u8 boot_drv; /* 643 * logical drive set as boot drive 644 * 0..7 - for 8LD cards 645 * 0..39 - for 40LD cards 646 */ 647 u8 rsvd[12]; 648 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ 649} __attribute__ ((packed)); 650 651 652 653 654/* 655 * Mailbox and firmware commands and subopcodes used in this driver. 656 */ 657 658#define MEGA_MBOXCMD_LREAD 0x01 659#define MEGA_MBOXCMD_LWRITE 0x02 660#define MEGA_MBOXCMD_PASSTHRU 0x03 661#define MEGA_MBOXCMD_ADPEXTINQ 0x04 662#define MEGA_MBOXCMD_ADAPTERINQ 0x05 663#define MEGA_MBOXCMD_LREAD64 0xA7 664#define MEGA_MBOXCMD_LWRITE64 0xA8 665#define MEGA_MBOXCMD_PASSTHRU64 0xC3 666#define MEGA_MBOXCMD_EXTPTHRU 0xE3 667 668#define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ 669#define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ 670 671#define FC_NEW_CONFIG 0xA1 672#define NC_SUBOP_PRODUCT_INFO 0x0E 673#define NC_SUBOP_ENQUIRY3 0x0F 674#define ENQ3_GET_SOLICITED_FULL 0x02 675#define OP_DCMD_READ_CONFIG 0x04 676#define NEW_READ_CONFIG_8LD 0x67 677#define READ_CONFIG_8LD 0x07 678#define FLUSH_ADAPTER 0x0A 679#define FLUSH_SYSTEM 0xFE 680 681/* 682 * Command for random deletion of logical drives 683 */ 684#define FC_DEL_LOGDRV 0xA4 /* f/w command */ 685#define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ 686#define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ 687#define OP_DEL_LOGDRV 0x1C /* delete logical drive */ 688 689/* 690 * BIOS commands 691 */ 692#define IS_BIOS_ENABLED 0x62 693#define GET_BIOS 0x01 694#define CHNL_CLASS 0xA9 695#define GET_CHNL_CLASS 0x00 696#define SET_CHNL_CLASS 0x01 697#define CH_RAID 0x01 698#define CH_SCSI 0x00 699#define BIOS_PVT_DATA 0x40 700#define GET_BIOS_PVT_DATA 0x00 701 702 703/* 704 * Commands to support clustering 705 */ 706#define MEGA_GET_TARGET_ID 0x7D 707#define MEGA_CLUSTER_OP 0x70 708#define MEGA_GET_CLUSTER_MODE 0x02 709#define MEGA_CLUSTER_CMD 0x6E 710#define MEGA_RESERVE_LD 0x01 711#define MEGA_RELEASE_LD 0x02 712#define MEGA_RESET_RESERVATIONS 0x03 713#define MEGA_RESERVATION_STATUS 0x04 714#define MEGA_RESERVE_PD 0x05 715#define MEGA_RELEASE_PD 0x06 716 717 718/* 719 * Module battery status 720 */ 721#define MEGA_BATT_MODULE_MISSING 0x01 722#define MEGA_BATT_LOW_VOLTAGE 0x02 723#define MEGA_BATT_TEMP_HIGH 0x04 724#define MEGA_BATT_PACK_MISSING 0x08 725#define MEGA_BATT_CHARGE_MASK 0x30 726#define MEGA_BATT_CHARGE_DONE 0x00 727#define MEGA_BATT_CHARGE_INPROG 0x10 728#define MEGA_BATT_CHARGE_FAIL 0x20 729#define MEGA_BATT_CYCLES_EXCEEDED 0x40 730 731/* 732 * Physical drive states. 733 */ 734#define PDRV_UNCNF 0 735#define PDRV_ONLINE 3 736#define PDRV_FAILED 4 737#define PDRV_RBLD 5 738#define PDRV_HOTSPARE 6 739 740 741/* 742 * Raid logical drive states. 743 */ 744#define RDRV_OFFLINE 0 745#define RDRV_DEGRADED 1 746#define RDRV_OPTIMAL 2 747#define RDRV_DELETED 3 748 749/* 750 * Read, write and cache policies 751 */ 752#define NO_READ_AHEAD 0 753#define READ_AHEAD 1 754#define ADAP_READ_AHEAD 2 755#define WRMODE_WRITE_THRU 0 756#define WRMODE_WRITE_BACK 1 757#define CACHED_IO 0 758#define DIRECT_IO 1 759 760struct megaraid_cmd_priv { 761 struct list_head entry; 762}; 763 764#define SCSI_LIST(scp) \ 765 (&((struct megaraid_cmd_priv *)scsi_cmd_priv(scp))->entry) 766 767struct scsi_cmd_and_priv { 768 struct scsi_cmnd cmd; 769 struct megaraid_cmd_priv priv; 770}; 771 772static inline struct scsi_cmnd * 773megaraid_to_scsi_cmd(struct megaraid_cmd_priv *cmd_priv) 774{ 775 /* See also scsi_mq_setup_tags() */ 776 BUILD_BUG_ON(sizeof(struct scsi_cmd_and_priv) != 777 sizeof(struct scsi_cmnd) + 778 sizeof(struct megaraid_cmd_priv)); 779 780 return &container_of(cmd_priv, struct scsi_cmd_and_priv, priv)->cmd; 781} 782 783/* 784 * Each controller's soft state 785 */ 786typedef struct { 787 int this_id; /* our id, may set to different than 7 if 788 clustering is available */ 789 u32 flag; 790 791 unsigned long base; 792 void __iomem *mmio_base; 793 794 /* mbox64 with mbox not aligned on 16-byte boundary */ 795 mbox64_t *una_mbox64; 796 dma_addr_t una_mbox64_dma; 797 798 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ 799 volatile mbox_t *mbox; /* ptr to standard mailbox */ 800 dma_addr_t mbox_dma; 801 802 struct pci_dev *dev; 803 804 struct list_head free_list; 805 struct list_head pending_list; 806 struct list_head completed_list; 807 808 struct Scsi_Host *host; 809 810#define MEGA_BUFFER_SIZE (2*1024) 811 u8 *mega_buffer; 812 dma_addr_t buf_dma_handle; 813 814 mega_product_info product_info; 815 816 u8 max_cmds; 817 scb_t *scb_list; 818 819 atomic_t pend_cmds; /* maintain a counter for pending 820 commands in firmware */ 821 822#if MEGA_HAVE_STATS 823 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; 824 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; 825 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; 826 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; 827 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; 828 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; 829#endif 830 831 /* Host adapter parameters */ 832 u8 numldrv; 833 u8 fw_version[7]; 834 u8 bios_version[7]; 835 836#ifdef CONFIG_PROC_FS 837 struct proc_dir_entry *controller_proc_dir_entry; 838#endif 839 840 int has_64bit_addr; /* are we using 64-bit addressing */ 841 int support_ext_cdb; 842 int boot_ldrv_enabled; 843 int boot_ldrv; 844 int boot_pdrv_enabled; /* boot from physical drive */ 845 int boot_pdrv_ch; /* boot physical drive channel */ 846 int boot_pdrv_tgt; /* boot physical drive target */ 847 848 849 int support_random_del; /* Do we support random deletion of 850 logdrvs */ 851 int read_ldidmap; /* set after logical drive deltion. The 852 logical drive number must be read from the 853 map */ 854 atomic_t quiescent; /* a stage reached when delete logical 855 drive needs to be done. Stop 856 sending requests to the hba till 857 delete operation is completed */ 858 spinlock_t lock; 859 860 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on 861 what channels. */ 862 int mega_ch_class; 863 864 u8 sglen; /* f/w supported scatter-gather list length */ 865 866 scb_t int_scb; 867 struct mutex int_mtx; /* To synchronize the internal 868 commands */ 869 int int_status; /* status of internal cmd */ 870 struct completion int_waitq; /* wait queue for internal 871 cmds */ 872 873 int has_cluster; /* cluster support on this HBA */ 874}adapter_t; 875 876 877struct mega_hbas { 878 int is_bios_enabled; 879 adapter_t *hostdata_addr; 880}; 881 882 883/* 884 * For state flag. Do not use LSB(8 bits) which are 885 * reserved for storing info about channels. 886 */ 887#define IN_ABORT 0x80000000L 888#define IN_RESET 0x40000000L 889#define BOARD_MEMMAP 0x20000000L 890#define BOARD_IOMAP 0x10000000L 891#define BOARD_40LD 0x08000000L 892#define BOARD_64BIT 0x04000000L 893 894#define INTR_VALID 0x40 895 896#define PCI_CONF_AMISIG 0xa0 897#define PCI_CONF_AMISIG64 0xa4 898 899 900#define MEGA_DMA_TYPE_NONE 0xFFFF 901#define MEGA_BULK_DATA 0x0001 902#define MEGA_SGLIST 0x0002 903 904/* 905 * Parameters for the io-mapped controllers 906 */ 907 908/* I/O Port offsets */ 909#define CMD_PORT 0x00 910#define ACK_PORT 0x00 911#define TOGGLE_PORT 0x01 912#define INTR_PORT 0x0a 913 914#define MBOX_BUSY_PORT 0x00 915#define MBOX_PORT0 0x04 916#define MBOX_PORT1 0x05 917#define MBOX_PORT2 0x06 918#define MBOX_PORT3 0x07 919#define ENABLE_MBOX_REGION 0x0B 920 921/* I/O Port Values */ 922#define ISSUE_BYTE 0x10 923#define ACK_BYTE 0x08 924#define ENABLE_INTR_BYTE 0xc0 925#define DISABLE_INTR_BYTE 0x00 926#define VALID_INTR_BYTE 0x40 927#define MBOX_BUSY_BYTE 0x10 928#define ENABLE_MBOX_BYTE 0x00 929 930 931/* Setup some port macros here */ 932#define issue_command(adapter) \ 933 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) 934 935#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) 936 937#define set_irq_state(adapter, value) \ 938 outb_p((value), (adapter)->base + INTR_PORT) 939 940#define irq_ack(adapter) \ 941 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) 942 943#define irq_enable(adapter) \ 944 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 945 946#define irq_disable(adapter) \ 947 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) 948 949 950/* 951 * This is our SYSDEP area. All kernel specific detail should be placed here - 952 * as much as possible 953 */ 954 955/* 956 * End of SYSDEP area 957 */ 958 959const char *megaraid_info (struct Scsi_Host *); 960 961static int mega_query_adapter(adapter_t *); 962static int issue_scb(adapter_t *, scb_t *); 963static int mega_setup_mailbox(adapter_t *); 964 965static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); 966static scb_t * mega_build_cmd(adapter_t *, struct scsi_cmnd *, int *); 967static void __mega_runpendq(adapter_t *); 968static int issue_scb_block(adapter_t *, u_char *); 969 970static irqreturn_t megaraid_isr_memmapped(int, void *); 971static irqreturn_t megaraid_isr_iomapped(int, void *); 972 973static void mega_free_scb(adapter_t *, scb_t *); 974 975static int megaraid_abort(struct scsi_cmnd *); 976static int megaraid_reset(struct scsi_cmnd *); 977static int megaraid_abort_and_reset(adapter_t *, struct scsi_cmnd *, int); 978static int megaraid_biosparam(struct scsi_device *, struct block_device *, 979 sector_t, int []); 980 981static int mega_build_sglist (adapter_t *adapter, scb_t *scb, 982 u32 *buffer, u32 *length); 983static int __mega_busywait_mbox (adapter_t *); 984static void mega_rundoneq (adapter_t *); 985static void mega_cmd_done(adapter_t *, u8 [], int, int); 986static inline void mega_free_sgl (adapter_t *adapter); 987static void mega_8_to_40ld (mraid_inquiry *inquiry, 988 mega_inquiry3 *enquiry3, mega_product_info *); 989 990static int megadev_open (struct inode *, struct file *); 991static int megadev_ioctl (struct file *, unsigned int, unsigned long); 992static int mega_m_to_n(void __user *, nitioctl_t *); 993static int mega_n_to_m(void __user *, megacmd_t *); 994 995static int mega_init_scb (adapter_t *); 996 997static int mega_is_bios_enabled (adapter_t *); 998 999#ifdef CONFIG_PROC_FS 1000static void mega_create_proc_entry(int, struct proc_dir_entry *); 1001static int mega_adapinq(adapter_t *, dma_addr_t); 1002static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); 1003#endif 1004 1005static int mega_support_ext_cdb(adapter_t *); 1006static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, 1007 struct scsi_cmnd *, int, int); 1008static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, 1009 scb_t *, struct scsi_cmnd *, int, int); 1010static void mega_enum_raid_scsi(adapter_t *); 1011static void mega_get_boot_drv(adapter_t *); 1012static int mega_support_random_del(adapter_t *); 1013static int mega_del_logdrv(adapter_t *, int); 1014static int mega_do_del_logdrv(adapter_t *, int); 1015static void mega_get_max_sgl(adapter_t *); 1016static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); 1017static int mega_support_cluster(adapter_t *); 1018#endif 1019 1020/* vi: set ts=8 sw=8 tw=78: */ 1021