release/src-rt-6.x/linux/linux-2.6/drivers/scsi/hptiop.h

   1 /*
   2  * HighPoint RR3xxx controller driver for Linux
   3  * Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * Please report bugs/comments/suggestions to linux@highpoint-tech.com
  15  *
  16  * For more information, visit http://www.highpoint-tech.com
  17  */
  18 #ifndef _HPTIOP_H_
  19 #define _HPTIOP_H_
  20
  21 /*
  22  * logical device type.
  23  * Identify array (logical device) and physical device.
  24  */
  25 #define LDT_ARRAY   1
  26 #define LDT_DEVICE  2
  27
  28 /*
  29  * Array types
  30  */
  31 #define AT_UNKNOWN  0
  32 #define AT_RAID0    1
  33 #define AT_RAID1    2
  34 #define AT_RAID5    3
  35 #define AT_RAID6    4
  36 #define AT_JBOD     7
  37
  38 #define MAX_NAME_LENGTH     36
  39 #define MAX_ARRAYNAME_LEN   16
  40
  41 #define MAX_ARRAY_MEMBERS_V1 8
  42 #define MAX_ARRAY_MEMBERS_V2 16
  43
  44 /* keep definition for source code compatiblity */
  45 #define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
  46
  47 /*
  48  * array flags
  49  */
  50 #define ARRAY_FLAG_DISABLED         0x00000001 /* The array is disabled */
  51 #define ARRAY_FLAG_NEEDBUILDING     0x00000002 /* need to be rebuilt */
  52 #define ARRAY_FLAG_REBUILDING       0x00000004 /* in rebuilding process */
  53 #define ARRAY_FLAG_BROKEN           0x00000008 /* broken but still working */
  54 #define ARRAY_FLAG_BOOTDISK         0x00000010 /* has a active partition */
  55 #define ARRAY_FLAG_BOOTMARK         0x00000040 /* array has boot mark set */
  56 #define ARRAY_FLAG_NEED_AUTOREBUILD 0x00000080 /* auto-rebuild should start */
  57 #define ARRAY_FLAG_VERIFYING        0x00000100 /* is being verified */
  58 #define ARRAY_FLAG_INITIALIZING     0x00000200 /* is being initialized */
  59 #define ARRAY_FLAG_TRANSFORMING     0x00000400 /* tranform in progress */
  60 #define ARRAY_FLAG_NEEDTRANSFORM    0x00000800 /* array need tranform */
  61 #define ARRAY_FLAG_NEEDINITIALIZING 0x00001000 /* initialization not done */
  62 #define ARRAY_FLAG_BROKEN_REDUNDANT 0x00002000 /* broken but redundant */
  63
  64 /*
  65  * device flags
  66  */
  67 #define DEVICE_FLAG_DISABLED        0x00000001 /* device is disabled */
  68 #define DEVICE_FLAG_UNINITIALIZED   0x00010000 /* device is not initialized */
  69 #define DEVICE_FLAG_LEGACY          0x00020000 /* lagacy drive */
  70 #define DEVICE_FLAG_IS_SPARE        0x80000000 /* is a spare disk */
  71
  72 /*
  73  * ioctl codes
  74  */
  75 #define HPT_CTL_CODE(x) (x+0xFF00)
  76 #define HPT_CTL_CODE_LINUX_TO_IOP(x) ((x)-0xff00)
  77
  78 #define HPT_IOCTL_GET_CONTROLLER_INFO       HPT_CTL_CODE(2)
  79 #define HPT_IOCTL_GET_CHANNEL_INFO          HPT_CTL_CODE(3)
  80 #define HPT_IOCTL_GET_LOGICAL_DEVICES       HPT_CTL_CODE(4)
  81 #define HPT_IOCTL_GET_DRIVER_CAPABILITIES   HPT_CTL_CODE(19)
  82 #define HPT_IOCTL_GET_DEVICE_INFO_V3        HPT_CTL_CODE(46)
  83 #define HPT_IOCTL_GET_CONTROLLER_INFO_V2    HPT_CTL_CODE(47)
  84
  85 /*
  86  * Controller information.
  87  */
  88 struct hpt_controller_info {
  89         u8      chip_type;                    /* chip type */
  90         u8      interrupt_level;              /* IRQ level */
  91         u8      num_buses;                    /* bus count */
  92         u8      chip_flags;
  93
  94         u8      product_id[MAX_NAME_LENGTH];/* product name */
  95         u8      vendor_id[MAX_NAME_LENGTH]; /* vendor name */
  96 }
  97 __attribute__((packed));
  98
  99 /*
 100  * Channel information.
 101  */
 102 struct hpt_channel_info {
 103         __le32  io_port;         /* IDE Base Port Address */
 104         __le32  control_port;    /* IDE Control Port Address */
 105         __le32  devices[2];      /* device connected to this channel */
 106 }
 107 __attribute__((packed));
 108
 109 /*
 110  * Array information.
 111  */
 112 struct hpt_array_info_v3 {
 113         u8      name[MAX_ARRAYNAME_LEN]; /* array name */
 114         u8      description[64];         /* array description */
 115         u8      create_manager[16];      /* who created it */
 116         __le32  create_time;             /* when created it */
 117
 118         u8      array_type;              /* array type */
 119         u8      block_size_shift;        /* stripe size */
 120         u8      ndisk;                   /* Number of ID in Members[] */
 121         u8      reserved;
 122
 123         __le32  flags;                   /* working flags, see ARRAY_FLAG_XXX */
 124         __le32  members[MAX_ARRAY_MEMBERS_V2];  /* member array/disks */
 125
 126         __le32  rebuilding_progress;
 127         __le64  rebuilt_sectors; /* rebuilding point (LBA) for single member */
 128
 129         __le32  transform_source;
 130         __le32  transform_target;    /* destination device ID */
 131         __le32  transforming_progress;
 132         __le32  signature;              /* persistent identification*/
 133         __le16  critical_members;       /* bit mask of critical members */
 134         __le16  reserve2;
 135         __le32  reserve;
 136 }
 137 __attribute__((packed));
 138
 139 /*
 140  * physical device information.
 141  */
 142 #define MAX_PARENTS_PER_DISK    8
 143
 144 struct hpt_device_info_v2 {
 145         u8   ctlr_id;             /* controller id */
 146         u8   path_id;             /* bus */
 147         u8   target_id;           /* id */
 148         u8   device_mode_setting; /* Current Data Transfer mode: 0-4 PIO0-4 */
 149                                   /* 5-7 MW DMA0-2, 8-13 UDMA0-5 */
 150         u8   device_type;         /* device type */
 151         u8   usable_mode;         /* highest usable mode */
 152
 153 #ifdef __BIG_ENDIAN_BITFIELD
 154         u8   NCQ_enabled: 1;
 155         u8   NCQ_supported: 1;
 156         u8   TCQ_enabled: 1;
 157         u8   TCQ_supported: 1;
 158         u8   write_cache_enabled: 1;
 159         u8   write_cache_supported: 1;
 160         u8   read_ahead_enabled: 1;
 161         u8   read_ahead_supported: 1;
 162         u8   reserved6: 6;
 163         u8   spin_up_mode: 2;
 164 #else
 165         u8   read_ahead_supported: 1;
 166         u8   read_ahead_enabled: 1;
 167         u8   write_cache_supported: 1;
 168         u8   write_cache_enabled: 1;
 169         u8   TCQ_supported: 1;
 170         u8   TCQ_enabled: 1;
 171         u8   NCQ_supported: 1;
 172         u8   NCQ_enabled: 1;
 173         u8   spin_up_mode: 2;
 174         u8   reserved6: 6;
 175 #endif
 176
 177         __le32  flags;         /* working flags, see DEVICE_FLAG_XXX */
 178         u8      ident[150];    /* (partitial) Identify Data of this device */
 179
 180         __le64  total_free;
 181         __le64  max_free;
 182         __le64  bad_sectors;
 183         __le32  parent_arrays[MAX_PARENTS_PER_DISK];
 184 }
 185 __attribute__((packed));
 186
 187 /*
 188  * Logical device information.
 189  */
 190 #define INVALID_TARGET_ID   0xFF
 191 #define INVALID_BUS_ID      0xFF
 192
 193 struct hpt_logical_device_info_v3 {
 194         u8       type;                   /* LDT_ARRAY or LDT_DEVICE */
 195         u8       cache_policy;           /* refer to CACHE_POLICY_xxx */
 196         u8       vbus_id;                /* vbus sequence in vbus_list */
 197         u8       target_id;              /* OS target id. 0xFF is invalid */
 198                                          /* OS name: DISK $VBusId_$TargetId */
 199         __le64   capacity;               /* array capacity */
 200         __le32   parent_array;           /* don't use this field for physical
 201                                             device. use ParentArrays field in
 202                                             hpt_device_info_v2 */
 203         /* reserved statistic fields */
 204         __le32   stat1;
 205         __le32   stat2;
 206         __le32   stat3;
 207         __le32   stat4;
 208
 209         union {
 210                 struct hpt_array_info_v3 array;
 211                 struct hpt_device_info_v2 device;
 212         } __attribute__((packed)) u;
 213
 214 }
 215 __attribute__((packed));
 216
 217 /*
 218  * ioctl structure
 219  */
 220 #define HPT_IOCTL_MAGIC   0xA1B2C3D4
 221
 222 struct hpt_ioctl_u {
 223         u32   magic;            /* used to check if it's a valid ioctl packet */
 224         u32   ioctl_code;       /* operation control code */
 225         void __user *inbuf;     /* input data buffer */
 226         u32   inbuf_size;       /* size of input data buffer */
 227         void __user *outbuf;    /* output data buffer */
 228         u32   outbuf_size;      /* size of output data buffer */
 229         void __user *bytes_returned;   /* count of bytes returned */
 230 }
 231 __attribute__((packed));
 232
 233
 234 struct hpt_iopmu
 235 {
 236         __le32 resrved0[4];
 237         __le32 inbound_msgaddr0;
 238         __le32 inbound_msgaddr1;
 239         __le32 outbound_msgaddr0;
 240         __le32 outbound_msgaddr1;
 241         __le32 inbound_doorbell;
 242         __le32 inbound_intstatus;
 243         __le32 inbound_intmask;
 244         __le32 outbound_doorbell;
 245         __le32 outbound_intstatus;
 246         __le32 outbound_intmask;
 247         __le32 reserved1[2];
 248         __le32 inbound_queue;
 249         __le32 outbound_queue;
 250 };
 251
 252 #define IOPMU_QUEUE_EMPTY            0xffffffff
 253 #define IOPMU_QUEUE_MASK_HOST_BITS   0xf0000000
 254 #define IOPMU_QUEUE_ADDR_HOST_BIT    0x80000000
 255
 256 #define IOPMU_OUTBOUND_INT_MSG0      1
 257 #define IOPMU_OUTBOUND_INT_MSG1      2
 258 #define IOPMU_OUTBOUND_INT_DOORBELL  4
 259 #define IOPMU_OUTBOUND_INT_POSTQUEUE 8
 260 #define IOPMU_OUTBOUND_INT_PCI       0x10
 261
 262 #define IOPMU_INBOUND_INT_MSG0       1
 263 #define IOPMU_INBOUND_INT_MSG1       2
 264 #define IOPMU_INBOUND_INT_DOORBELL   4
 265 #define IOPMU_INBOUND_INT_ERROR      8
 266 #define IOPMU_INBOUND_INT_POSTQUEUE  0x10
 267
 268 enum hpt_iopmu_message {
 269         /* host-to-iop messages */
 270         IOPMU_INBOUND_MSG0_NOP = 0,
 271         IOPMU_INBOUND_MSG0_RESET,
 272         IOPMU_INBOUND_MSG0_FLUSH,
 273         IOPMU_INBOUND_MSG0_SHUTDOWN,
 274         IOPMU_INBOUND_MSG0_STOP_BACKGROUND_TASK,
 275         IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK,
 276         IOPMU_INBOUND_MSG0_MAX = 0xff,
 277         /* iop-to-host messages */
 278         IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_0 = 0x100,
 279         IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_MAX = 0x1ff,
 280         IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_0 = 0x200,
 281         IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_MAX = 0x2ff,
 282         IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_0 = 0x300,
 283         IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
 284 };
 285
 286 struct hpt_iop_request_header
 287 {
 288         __le32 size;
 289         __le32 type;
 290         __le32 flags;
 291         __le32 result;
 292         __le32 context; /* host context */
 293         __le32 context_hi32;
 294 };
 295
 296 #define IOP_REQUEST_FLAG_SYNC_REQUEST 1
 297 #define IOP_REQUEST_FLAG_BIST_REQUEST 2
 298 #define IOP_REQUEST_FLAG_REMAPPED     4
 299 #define IOP_REQUEST_FLAG_OUTPUT_CONTEXT 8
 300
 301 enum hpt_iop_request_type {
 302         IOP_REQUEST_TYPE_GET_CONFIG = 0,
 303         IOP_REQUEST_TYPE_SET_CONFIG,
 304         IOP_REQUEST_TYPE_BLOCK_COMMAND,
 305         IOP_REQUEST_TYPE_SCSI_COMMAND,
 306         IOP_REQUEST_TYPE_IOCTL_COMMAND,
 307         IOP_REQUEST_TYPE_MAX
 308 };
 309
 310 enum hpt_iop_result_type {
 311         IOP_RESULT_PENDING = 0,
 312         IOP_RESULT_SUCCESS,
 313         IOP_RESULT_FAIL,
 314         IOP_RESULT_BUSY,
 315         IOP_RESULT_RESET,
 316         IOP_RESULT_INVALID_REQUEST,
 317         IOP_RESULT_BAD_TARGET,
 318         IOP_RESULT_MODE_SENSE_CHECK_CONDITION,
 319 };
 320
 321 struct hpt_iop_request_get_config
 322 {
 323         struct hpt_iop_request_header header;
 324         __le32 interface_version;
 325         __le32 firmware_version;
 326         __le32 max_requests;
 327         __le32 request_size;
 328         __le32 max_sg_count;
 329         __le32 data_transfer_length;
 330         __le32 alignment_mask;
 331         __le32 max_devices;
 332         __le32 sdram_size;
 333 };
 334
 335 struct hpt_iop_request_set_config
 336 {
 337         struct hpt_iop_request_header header;
 338         __le32 iop_id;
 339         __le32 vbus_id;
 340         __le32 reserve[6];
 341 };
 342
 343 struct hpt_iopsg
 344 {
 345         __le32 size;
 346         __le32 eot; /* non-zero: end of table */
 347         __le64 pci_address;
 348 };
 349
 350 struct hpt_iop_request_block_command
 351 {
 352         struct hpt_iop_request_header header;
 353         u8     channel;
 354         u8     target;
 355         u8     lun;
 356         u8     pad1;
 357         __le16 command; /* IOP_BLOCK_COMMAND_{READ,WRITE} */
 358         __le16 sectors;
 359         __le64 lba;
 360         struct hpt_iopsg sg_list[1];
 361 };
 362
 363 #define IOP_BLOCK_COMMAND_READ     1
 364 #define IOP_BLOCK_COMMAND_WRITE    2
 365 #define IOP_BLOCK_COMMAND_VERIFY   3
 366 #define IOP_BLOCK_COMMAND_FLUSH    4
 367 #define IOP_BLOCK_COMMAND_SHUTDOWN 5
 368
 369 struct hpt_iop_request_scsi_command
 370 {
 371         struct hpt_iop_request_header header;
 372         u8     channel;
 373         u8     target;
 374         u8     lun;
 375         u8     pad1;
 376         u8     cdb[16];
 377         __le32 dataxfer_length;
 378         struct hpt_iopsg sg_list[1];
 379 };
 380
 381 struct hpt_iop_request_ioctl_command
 382 {
 383         struct hpt_iop_request_header header;
 384         __le32 ioctl_code;
 385         __le32 inbuf_size;
 386         __le32 outbuf_size;
 387         __le32 bytes_returned;
 388         u8     buf[1];
 389         /* out data should be put at buf[(inbuf_size+3)&~3] */
 390 };
 391
 392 #define HPTIOP_MAX_REQUESTS  256u
 393
 394 struct hptiop_request {
 395         struct hptiop_request * next;
 396         void *                  req_virt;
 397         u32                     req_shifted_phy;
 398         struct scsi_cmnd *      scp;
 399         int                     index;
 400 };
 401
 402 struct hpt_scsi_pointer {
 403         int mapped;
 404         int sgcnt;
 405         dma_addr_t dma_handle;
 406 };
 407
 408 #define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
 409
 410 struct hptiop_hba {
 411         struct hpt_iopmu __iomem * iop;
 412         struct Scsi_Host * host;
 413         struct pci_dev * pcidev;
 414
 415         struct list_head link;
 416
 417         /* IOP config info */
 418         u32     firmware_version;
 419         u32     sdram_size;
 420         u32     max_devices;
 421         u32     max_requests;
 422         u32     max_request_size;
 423         u32     max_sg_descriptors;
 424
 425         u32     req_size; /* host-allocated request buffer size */
 426         int     initialized;
 427         int     msg_done;
 428
 429         struct hptiop_request * req_list;
 430         struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
 431
 432         /* used to free allocated dma area */
 433         void *      dma_coherent;
 434         dma_addr_t  dma_coherent_handle;
 435
 436         atomic_t    reset_count;
 437         atomic_t    resetting;
 438
 439         wait_queue_head_t reset_wq;
 440         wait_queue_head_t ioctl_wq;
 441 };
 442
 443 struct hpt_ioctl_k
 444 {
 445         struct hptiop_hba * hba;
 446         u32    ioctl_code;
 447         u32    inbuf_size;
 448         u32    outbuf_size;
 449         void * inbuf;
 450         void * outbuf;
 451         u32  * bytes_returned;
 452         void (*done)(struct hpt_ioctl_k *);
 453         int    result; /* HPT_IOCTL_RESULT_ */
 454 };
 455
 456 #define HPT_IOCTL_RESULT_OK         0
 457 #define HPT_IOCTL_RESULT_FAILED     (-1)
 458
 459 #if 0
 460 #define dprintk(fmt, args...) do { printk(fmt, ##args); } while(0)
 461 #else
 462 #define dprintk(fmt, args...)
 463 #endif
 464
 465 #endif