drivers/scsi/megaraid.h

   1 #ifndef __MEGARAID_H__
   2 #define __MEGARAID_H__
   3
   4 #include <linux/version.h>
   5
   6 #define IN_ISR                  0x80000000L
   7 #define NO_INTR                 0x40000000L
   8 #define IN_TIMEOUT              0x20000000L
   9 #define PENDING                 0x10000000L
  10 #define BOARD_QUARTZ            0x08000000L
  11
  12 #define SCB_ACTIVE 0x1
  13 #define SCB_WAITQ  0x2
  14 #define SCB_ISSUED 0x4
  15
  16 #define SCB_FREE                -1
  17 #define SCB_RESET               -2
  18 #define SCB_ABORT               -3
  19 #define SCB_LOCKED              -4
  20
  21 #define MEGA_CMD_TIMEOUT        10
  22
  23 #define MAX_SGLIST              20
  24 #define MAX_COMMANDS            254
  25
  26 #define MAX_LOGICAL_DRIVES      8
  27 #define MAX_CHANNEL             5
  28 #define MAX_TARGET              15
  29 #define MAX_PHYSICAL_DRIVES     MAX_CHANNEL*MAX_TARGET
  30
  31 #define INQUIRY_DATA_SIZE       0x24
  32 #define MAX_CDB_LEN             0x0A
  33 #define MAX_REQ_SENSE_LEN       0x20
  34
  35 #define INTR_VALID              0x40
  36
  37 /* Mailbox commands */
  38 #define MEGA_MBOXCMD_LREAD      0x01
  39 #define MEGA_MBOXCMD_LWRITE     0x02
  40 #define MEGA_MBOXCMD_PASSTHRU   0x03
  41 #define MEGA_MBOXCMD_ADAPTERINQ 0x05
  42
  43 /* Offsets into Mailbox */
  44 #define COMMAND_PORT       0x00
  45 #define COMMAND_ID_PORT    0x01
  46 #define SG_LIST_PORT0      0x08
  47 #define SG_LIST_PORT1      0x09
  48 #define SG_LIST_PORT2      0x0a
  49 #define SG_LIST_PORT3      0x0b
  50 #define SG_ELEMENT_PORT    0x0d
  51 #define NO_FIRED_PORT      0x0f
  52
  53 /* I/O Port offsets */
  54 #define I_CMD_PORT         0x00
  55 #define I_ACK_PORT         0x00
  56 #define I_TOGGLE_PORT      0x01
  57 #define INTR_PORT          0x0a
  58
  59 #define MAILBOX_SIZE       70
  60 #define MBOX_BUSY_PORT     0x00
  61 #define MBOX_PORT0         0x04
  62 #define MBOX_PORT1         0x05
  63 #define MBOX_PORT2         0x06
  64 #define MBOX_PORT3         0x07
  65 #define ENABLE_MBOX_REGION 0x0B
  66
  67 /* I/O Port Values */
  68 #define ISSUE_BYTE         0x10
  69 #define ACK_BYTE           0x08
  70 #define ENABLE_INTR_BYTE   0xc0
  71 #define DISABLE_INTR_BYTE  0x00
  72 #define VALID_INTR_BYTE    0x40
  73 #define MBOX_BUSY_BYTE     0x10
  74 #define ENABLE_MBOX_BYTE   0x00
  75
  76 /* Setup some port macros here */
  77 #define WRITE_MAILBOX(base,offset,value)   *(base+offset)=value
  78 #define READ_MAILBOX(base,offset)          *(base+offset)
  79
  80 #define WRITE_PORT(base,offset,value)      outb_p(value,base+offset)
  81 #define READ_PORT(base,offset)             inb_p(base+offset)
  82
  83 #define ISSUE_COMMAND(base)   WRITE_PORT(base,I_CMD_PORT,ISSUE_BYTE)
  84 #define CLEAR_INTR(base)      WRITE_PORT(base,I_ACK_PORT,ACK_BYTE)
  85 #define ENABLE_INTR(base)     WRITE_PORT(base,I_TOGGLE_PORT,ENABLE_INTR_BYTE)
  86 #define DISABLE_INTR(base)    WRITE_PORT(base,I_TOGGLE_PORT,DISABLE_INTR_BYTE)
  87
  88 /* Define AMI's PCI codes */
  89 #undef PCI_VENDOR_ID_AMI
  90 #undef PCI_DEVICE_ID_AMI_MEGARAID
  91
  92 #ifndef PCI_VENDOR_ID_AMI
  93 #define PCI_VENDOR_ID_AMI          0x101E
  94 #define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
  95 #endif
  96
  97 #define PCI_CONF_BASE_ADDR_OFFSET  0x10
  98 #define PCI_CONF_IRQ_OFFSET        0x3c
  99
 100 #if LINUX_VERSION_CODE < 0x20100
 101 #define MEGARAID \
 102   { NULL,                               /* Next                      */\
 103     NULL,                               /* Usage Count Pointer       */\
 104     NULL,                               /* /proc Directory Entry     */\
 105     megaraid_proc_info,                 /* /proc Info Function       */\
 106     "MegaRAID",                         /* Driver Name               */\
 107     megaraid_detect,                    /* Detect Host Adapter       */\
 108     megaraid_release,                   /* Release Host Adapter      */\
 109     megaraid_info,                      /* Driver Info Function      */\
 110     megaraid_command,                   /* Command Function          */\
 111     megaraid_queue,                     /* Queue Command Function    */\
 112     megaraid_abort,                     /* Abort Command Function    */\
 113     megaraid_reset,                     /* Reset Command Function    */\
 114     NULL,                               /* Slave Attach Function     */\
 115     megaraid_biosparam,                 /* Disk BIOS Parameters      */\
 116     1,                                  /* # of cmds that can be\
 117                                            outstanding at any time */\
 118     7,                                  /* HBA Target ID             */\
 119     MAX_SGLIST,                         /* Scatter/Gather Table Size */\
 120     1,                                  /* SCSI Commands per LUN     */\
 121     0,                                  /* Present                   */\
 122     0,                                  /* Default Unchecked ISA DMA */\
 123     ENABLE_CLUSTERING }                 /* Enable Clustering         */
 124 #else
 125 #define MEGARAID \
 126   {\
 127     name:            "MegaRAID",               /* Driver Name               */\
 128     proc_info:        megaraid_proc_info,      /* /proc driver info         */\
 129     detect:           megaraid_detect,         /* Detect Host Adapter       */\
 130     release:          megaraid_release,        /* Release Host Adapter      */\
 131     info:             megaraid_info,           /* Driver Info Function      */\
 132     command:          megaraid_command,        /* Command Function          */\
 133     queuecommand:     megaraid_queue,          /* Queue Command Function    */\
 134     abort:            megaraid_abort,          /* Abort Command Function    */\
 135     reset:            megaraid_reset,          /* Reset Command Function    */\
 136     bios_param:       megaraid_biosparam,      /* Disk BIOS Parameters      */\
 137     can_queue:        255,                     /* Can Queue                 */\
 138     this_id:          7,                       /* HBA Target ID             */\
 139     sg_tablesize:     MAX_SGLIST,              /* Scatter/Gather Table Size */\
 140     cmd_per_lun:      1,                       /* SCSI Commands per LUN     */\
 141     present:          0,                       /* Present                   */\
 142     unchecked_isa_dma:0,                       /* Default Unchecked ISA DMA */\
 143     use_clustering:   ENABLE_CLUSTERING       /* Enable Clustering         */\
 144   }
 145 #endif
 146
 147 /* Structures */
 148 typedef struct _mega_ADP_INFO
 149 {
 150   u_char    MaxConcCmds;
 151   u_char    RbldRate;
 152   u_char    MaxTargPerChan;
 153   u_char    ChanPresent;
 154   u_char    FwVer[4];
 155   u_short   AgeOfFlash;
 156   u_char    ChipSet;
 157   u_char    DRAMSize;
 158   u_char    CacheFlushInterval;
 159   u_char    BiosVer[4];
 160   u_char    resvd[7];
 161 } mega_ADP_INFO;
 162
 163 typedef struct _mega_LDRV_INFO
 164 {
 165   u_char   NumLDrv;
 166   u_char   resvd[3];
 167   u_long   LDrvSize[MAX_LOGICAL_DRIVES];
 168   u_char   LDrvProp[MAX_LOGICAL_DRIVES];
 169   u_char   LDrvState[MAX_LOGICAL_DRIVES];
 170 } mega_LDRV_INFO;
 171
 172 typedef struct _mega_PDRV_INFO
 173 {
 174   u_char   PDrvState[MAX_PHYSICAL_DRIVES];
 175   u_char   resvd;
 176 } mega_PDRV_INFO;
 177
 178 // RAID inquiry: Mailbox command 0x5
 179 typedef struct _mega_RAIDINQ
 180 {
 181   mega_ADP_INFO    AdpInfo;
 182   mega_LDRV_INFO   LogdrvInfo;
 183   mega_PDRV_INFO   PhysdrvInfo;
 184 } mega_RAIDINQ;
 185
 186 // Passthrough command: Mailbox command 0x3
 187 typedef struct mega_passthru
 188 {
 189   u_char            timeout:3;              /* 0=6sec/1=60sec/2=10min/3=3hrs */
 190   u_char            ars:1;
 191   u_char            reserved:3;
 192   u_char            islogical:1;
 193   u_char            logdrv;                 /* if islogical == 1 */
 194   u_char            channel;                /* if islogical == 0 */
 195   u_char            target;                 /* if islogical == 0 */
 196   u_char            queuetag;               /* unused */
 197   u_char            queueaction;            /* unused */
 198   u_char            cdb[MAX_CDB_LEN];
 199   u_char            cdblen;
 200   u_char            reqsenselen;
 201   u_char            reqsensearea[MAX_REQ_SENSE_LEN];
 202   u_char            numsgelements;
 203   u_char            scsistatus;
 204   u_long            dataxferaddr;
 205   u_long            dataxferlen;
 206 } mega_passthru;
 207
 208 typedef struct _mega_mailbox
 209 {
 210   /* 0x0 */ u_char    cmd;
 211   /* 0x1 */ u_char    cmdid;
 212   /* 0x2 */ u_short   numsectors;
 213   /* 0x4 */ u_long    lba;
 214   /* 0x8 */ u_long    xferaddr;
 215   /* 0xC */ u_char    logdrv;
 216   /* 0xD */ u_char    numsgelements;
 217   /* 0xE */ u_char    resvd;
 218   /* 0xF */ u_char    busy;
 219   /* 0x10*/ u_char    numstatus;
 220   /* 0x11*/ u_char    status;
 221   /* 0x12*/ u_char    completed[46];
 222             u_char    mraid_poll;
 223             u_char    mraid_ack;
 224             u_char    pad[16];
 225 } mega_mailbox;
 226
 227 typedef struct _mega_sglist
 228 {
 229   u_long     address;
 230   u_long     length;
 231 } mega_sglist;
 232
 233 /* Queued command data */
 234 typedef struct _mega_scb mega_scb;
 235
 236 struct _mega_scb
 237 {
 238   int             idx;
 239   u_long          flag;
 240   Scsi_Cmnd      *SCpnt;
 241   u_char          mboxData[16];
 242   mega_passthru   pthru;
 243   mega_sglist    *sgList;
 244   mega_scb       *next;
 245 };
 246
 247 /* Per-controller data */
 248 typedef struct _mega_host_config
 249 {
 250   u_char               numldrv;
 251   u_long               flag;
 252   u_long               base;
 253
 254   struct tq_struct     megaTq;
 255
 256   /* Host adapter parameters */
 257   u_char               fwVer[7];
 258   u_char               biosVer[7];
 259
 260   struct Scsi_Host     *host;
 261
 262   /* The following must be DMA-able!! */
 263   volatile mega_mailbox *mbox;
 264   volatile mega_mailbox mailbox;
 265   volatile u_char       mega_buffer[2*1024L];
 266
 267   u_char                max_cmds;
 268   mega_scb              scbList[MAX_COMMANDS];
 269 } mega_host_config;
 270
 271 extern struct proc_dir_entry proc_scsi_megaraid;
 272
 273 const char *megaraid_info( struct Scsi_Host * );
 274 int        megaraid_detect( Scsi_Host_Template * );
 275 int        megaraid_release(struct Scsi_Host *);
 276 int        megaraid_command( Scsi_Cmnd * );
 277 int        megaraid_abort( Scsi_Cmnd * );
 278 int        megaraid_reset( Scsi_Cmnd *, unsigned int);
 279 int        megaraid_queue( Scsi_Cmnd *, void (*done)(Scsi_Cmnd *) );
 280 int        megaraid_biosparam( Disk *, kdev_t, int * );
 281 int        megaraid_proc_info( char *buffer, char **start, off_t offset,
 282                                int length, int hostno, int inout );
 283
 284 #endif