Merge with Linux 2.2.1.

1 files changed, 284 insertions, 0 deletions

diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
new file mode 100644
index 000000000..b020d1b78
--- /dev/null
+++ b/drivers/scsi/megaraid.h
@@ -0,0 +1,284 @@
+#ifndef __MEGARAID_H__
+#define __MEGARAID_H__
+
+#include <linux/version.h>
+
+#define IN_ISR                  0x80000000L
+#define NO_INTR                 0x40000000L
+#define IN_TIMEOUT              0x20000000L
+#define PENDING                 0x10000000L
+#define BOARD_QUARTZ            0x08000000L
+
+#define SCB_ACTIVE 0x1
+#define SCB_WAITQ  0x2
+#define SCB_ISSUED 0x4
+
+#define SCB_FREE                -1
+#define SCB_RESET               -2
+#define SCB_ABORT               -3
+#define SCB_LOCKED              -4
+
+#define MEGA_CMD_TIMEOUT        10
+
+#define MAX_SGLIST              20
+#define MAX_COMMANDS            254
+
+#define MAX_LOGICAL_DRIVES      8
+#define MAX_CHANNEL             5
+#define MAX_TARGET              15
+#define MAX_PHYSICAL_DRIVES     MAX_CHANNEL*MAX_TARGET
+
+#define INQUIRY_DATA_SIZE       0x24
+#define MAX_CDB_LEN             0x0A
+#define MAX_REQ_SENSE_LEN       0x20
+
+#define INTR_VALID              0x40
+
+/* Mailbox commands */
+#define MEGA_MBOXCMD_LREAD      0x01
+#define MEGA_MBOXCMD_LWRITE     0x02
+#define MEGA_MBOXCMD_PASSTHRU   0x03
+#define MEGA_MBOXCMD_ADAPTERINQ 0x05
+
+/* Offsets into Mailbox */
+#define COMMAND_PORT       0x00
+#define COMMAND_ID_PORT    0x01
+#define SG_LIST_PORT0      0x08
+#define SG_LIST_PORT1      0x09
+#define SG_LIST_PORT2      0x0a
+#define SG_LIST_PORT3      0x0b
+#define SG_ELEMENT_PORT    0x0d
+#define NO_FIRED_PORT      0x0f
+
+/* I/O Port offsets */
+#define I_CMD_PORT         0x00
+#define I_ACK_PORT         0x00
+#define I_TOGGLE_PORT      0x01
+#define INTR_PORT          0x0a
+
+#define MAILBOX_SIZE       70
+#define MBOX_BUSY_PORT     0x00
+#define MBOX_PORT0         0x04
+#define MBOX_PORT1         0x05
+#define MBOX_PORT2         0x06
+#define MBOX_PORT3         0x07
+#define ENABLE_MBOX_REGION 0x0B
+
+/* I/O Port Values */
+#define ISSUE_BYTE         0x10
+#define ACK_BYTE           0x08
+#define ENABLE_INTR_BYTE   0xc0
+#define DISABLE_INTR_BYTE  0x00
+#define VALID_INTR_BYTE    0x40
+#define MBOX_BUSY_BYTE     0x10
+#define ENABLE_MBOX_BYTE   0x00
+
+/* Setup some port macros here */
+#define WRITE_MAILBOX(base,offset,value)   *(base+offset)=value
+#define READ_MAILBOX(base,offset)          *(base+offset)
+
+#define WRITE_PORT(base,offset,value)      outb_p(value,base+offset)
+#define READ_PORT(base,offset)             inb_p(base+offset)
+
+#define ISSUE_COMMAND(base)   WRITE_PORT(base,I_CMD_PORT,ISSUE_BYTE)
+#define CLEAR_INTR(base)      WRITE_PORT(base,I_ACK_PORT,ACK_BYTE)
+#define ENABLE_INTR(base)     WRITE_PORT(base,I_TOGGLE_PORT,ENABLE_INTR_BYTE)
+#define DISABLE_INTR(base)    WRITE_PORT(base,I_TOGGLE_PORT,DISABLE_INTR_BYTE)
+
+/* Define AMI's PCI codes */
+#undef PCI_VENDOR_ID_AMI
+#undef PCI_DEVICE_ID_AMI_MEGARAID
+
+#ifndef PCI_VENDOR_ID_AMI
+#define PCI_VENDOR_ID_AMI          0x101E
+#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
+#endif
+
+#define PCI_CONF_BASE_ADDR_OFFSET  0x10
+#define PCI_CONF_IRQ_OFFSET        0x3c
+
+#if LINUX_VERSION_CODE < 0x20100
+#define MEGARAID \
+  { NULL,                               /* Next                      */\
+    NULL,                               /* Usage Count Pointer       */\
+    NULL,                               /* /proc Directory Entry     */\
+    megaraid_proc_info,                 /* /proc Info Function       */\
+    "MegaRAID",                         /* Driver Name               */\
+    megaraid_detect,                    /* Detect Host Adapter       */\
+    megaraid_release,                   /* Release Host Adapter      */\
+    megaraid_info,                      /* Driver Info Function      */\
+    megaraid_command,                   /* Command Function          */\
+    megaraid_queue,                     /* Queue Command Function    */\
+    megaraid_abort,                     /* Abort Command Function    */\
+    megaraid_reset,                     /* Reset Command Function    */\
+    NULL,                               /* Slave Attach Function     */\
+    megaraid_biosparam,                 /* Disk BIOS Parameters      */\
+    1,                                  /* # of cmds that can be\
+                                           outstanding at any time */\
+    7,                                  /* HBA Target ID             */\
+    MAX_SGLIST,                         /* Scatter/Gather Table Size */\
+    1,                                  /* SCSI Commands per LUN     */\
+    0,                                  /* Present                   */\
+    0,                                  /* Default Unchecked ISA DMA */\
+    ENABLE_CLUSTERING }                 /* Enable Clustering         */
+#else
+#define MEGARAID \
+  {\
+    name:            "MegaRAID",               /* Driver Name               */\
+    proc_info:        megaraid_proc_info,      /* /proc driver info         */\
+    detect:           megaraid_detect,         /* Detect Host Adapter       */\
+    release:          megaraid_release,        /* Release Host Adapter      */\
+    info:             megaraid_info,           /* Driver Info Function      */\
+    command:          megaraid_command,        /* Command Function          */\
+    queuecommand:     megaraid_queue,          /* Queue Command Function    */\
+    abort:            megaraid_abort,          /* Abort Command Function    */\
+    reset:            megaraid_reset,          /* Reset Command Function    */\
+    bios_param:       megaraid_biosparam,      /* Disk BIOS Parameters      */\
+    can_queue:        255,                     /* Can Queue                 */\
+    this_id:          7,                       /* HBA Target ID             */\
+    sg_tablesize:     MAX_SGLIST,              /* Scatter/Gather Table Size */\
+    cmd_per_lun:      1,                       /* SCSI Commands per LUN     */\
+    present:          0,                       /* Present                   */\
+    unchecked_isa_dma:0,                       /* Default Unchecked ISA DMA */\
+    use_clustering:   ENABLE_CLUSTERING       /* Enable Clustering         */\
+  }
+#endif
+
+/* Structures */
+typedef struct _mega_ADP_INFO
+{
+  u_char    MaxConcCmds;
+  u_char    RbldRate;
+  u_char    MaxTargPerChan;
+  u_char    ChanPresent;
+  u_char    FwVer[4];
+  u_short   AgeOfFlash;
+  u_char    ChipSet;
+  u_char    DRAMSize;
+  u_char    CacheFlushInterval;
+  u_char    BiosVer[4];
+  u_char    resvd[7];
+} mega_ADP_INFO;
+
+typedef struct _mega_LDRV_INFO
+{
+  u_char   NumLDrv;
+  u_char   resvd[3];
+  u_long   LDrvSize[MAX_LOGICAL_DRIVES];
+  u_char   LDrvProp[MAX_LOGICAL_DRIVES];
+  u_char   LDrvState[MAX_LOGICAL_DRIVES];
+} mega_LDRV_INFO;
+
+typedef struct _mega_PDRV_INFO
+{
+  u_char   PDrvState[MAX_PHYSICAL_DRIVES];
+  u_char   resvd;
+} mega_PDRV_INFO;
+
+// RAID inquiry: Mailbox command 0x5
+typedef struct _mega_RAIDINQ
+{
+  mega_ADP_INFO    AdpInfo;
+  mega_LDRV_INFO   LogdrvInfo;
+  mega_PDRV_INFO   PhysdrvInfo;
+} mega_RAIDINQ;
+
+// Passthrough command: Mailbox command 0x3
+typedef struct mega_passthru
+{
+  u_char            timeout:3;              /* 0=6sec/1=60sec/2=10min/3=3hrs */
+  u_char            ars:1;
+  u_char            reserved:3;
+  u_char            islogical:1;
+  u_char            logdrv;                 /* if islogical == 1 */
+  u_char            channel;                /* if islogical == 0 */
+  u_char            target;                 /* if islogical == 0 */
+  u_char            queuetag;               /* unused */
+  u_char            queueaction;            /* unused */
+  u_char            cdb[MAX_CDB_LEN];
+  u_char            cdblen;
+  u_char            reqsenselen;
+  u_char            reqsensearea[MAX_REQ_SENSE_LEN];
+  u_char            numsgelements;
+  u_char            scsistatus;
+  u_long            dataxferaddr;
+  u_long            dataxferlen;
+} mega_passthru;
+
+typedef struct _mega_mailbox
+{
+  /* 0x0 */ u_char    cmd;
+  /* 0x1 */ u_char    cmdid;
+  /* 0x2 */ u_short   numsectors;
+  /* 0x4 */ u_long    lba;
+  /* 0x8 */ u_long    xferaddr;
+  /* 0xC */ u_char    logdrv;
+  /* 0xD */ u_char    numsgelements;
+  /* 0xE */ u_char    resvd;
+  /* 0xF */ u_char    busy;
+  /* 0x10*/ u_char    numstatus;
+  /* 0x11*/ u_char    status;
+  /* 0x12*/ u_char    completed[46];
+            u_char    mraid_poll;
+            u_char    mraid_ack;
+            u_char    pad[16];
+} mega_mailbox;
+
+typedef struct _mega_sglist
+{
+  u_long     address;
+  u_long     length;
+} mega_sglist;
+
+/* Queued command data */
+typedef struct _mega_scb mega_scb;
+
+struct _mega_scb
+{
+  int             idx;
+  u_long          flag;
+  Scsi_Cmnd      *SCpnt;
+  u_char          mboxData[16];
+  mega_passthru   pthru;
+  mega_sglist    *sgList;
+  mega_scb       *next;
+};
+
+/* Per-controller data */
+typedef struct _mega_host_config
+{
+  u_char               numldrv;
+  u_long               flag;
+  u_long               base;
+
+  struct tq_struct     megaTq;
+
+  /* Host adapter parameters */
+  u_char               fwVer[7];
+  u_char               biosVer[7];
+
+  struct Scsi_Host     *host;
+
+  /* The following must be DMA-able!! */
+  volatile mega_mailbox *mbox;
+  volatile mega_mailbox mailbox;
+  volatile u_char       mega_buffer[2*1024L];
+
+  u_char                max_cmds;
+  mega_scb              scbList[MAX_COMMANDS];
+} mega_host_config;
+
+extern struct proc_dir_entry proc_scsi_megaraid;
+
+const char *megaraid_info( struct Scsi_Host * );
+int        megaraid_detect( Scsi_Host_Template * );
+int        megaraid_release(struct Scsi_Host *);
+int        megaraid_command( Scsi_Cmnd * );
+int        megaraid_abort( Scsi_Cmnd * );
+int        megaraid_reset( Scsi_Cmnd *, unsigned int); 
+int        megaraid_queue( Scsi_Cmnd *, void (*done)(Scsi_Cmnd *) );
+int        megaraid_biosparam( Disk *, kdev_t, int * );
+int        megaraid_proc_info( char *buffer, char **start, off_t offset,
+			       int length, int hostno, int inout );
+
+#endif