Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
new file mode 100644
index 0000000..e25c4de
--- /dev/null
+++ b/drivers/scsi/megaraid.h
@@ -0,0 +1,1071 @@
+#ifndef __MEGARAID_H__
+#define __MEGARAID_H__
+
+#include <linux/spinlock.h>
+
+
+#define MEGARAID_VERSION \
+ "v2.00.3 (Release Date: Wed Feb 19 08:51:30 EST 2003)\n"
+
+/*
+ * Driver features - change the values to enable or disable features in the
+ * driver.
+ */
+
+/*
+ * Comand coalescing - This feature allows the driver to be able to combine
+ * two or more commands and issue as one command in order to boost I/O
+ * performance. Useful if the nature of the I/O is sequential. It is not very
+ * useful for random natured I/Os.
+ */
+#define MEGA_HAVE_COALESCING 0
+
+/*
+ * Clustering support - Set this flag if you are planning to use the
+ * clustering services provided by the megaraid controllers and planning to
+ * setup a cluster
+ */
+#define MEGA_HAVE_CLUSTERING 1
+
+/*
+ * Driver statistics - Set this flag if you are interested in statics about
+ * number of I/O completed on each logical drive and how many interrupts
+ * generated. If enabled, this information is available through /proc
+ * interface and through the private ioctl. Setting this flag has a
+ * performance penalty.
+ */
+#define MEGA_HAVE_STATS 0
+
+/*
+ * Enhanced /proc interface - This feature will allow you to have a more
+ * detailed /proc interface for megaraid driver. E.g., a real time update of
+ * the status of the logical drives, battery status, physical drives etc.
+ */
+#define MEGA_HAVE_ENH_PROC 1
+
+#define MAX_DEV_TYPE 32
+
+#ifndef PCI_VENDOR_ID_LSI_LOGIC
+#define PCI_VENDOR_ID_LSI_LOGIC 0x1000
+#endif
+
+#ifndef PCI_VENDOR_ID_AMI
+#define PCI_VENDOR_ID_AMI 0x101E
+#endif
+
+#ifndef PCI_VENDOR_ID_DELL
+#define PCI_VENDOR_ID_DELL 0x1028
+#endif
+
+#ifndef PCI_VENDOR_ID_INTEL
+#define PCI_VENDOR_ID_INTEL 0x8086
+#endif
+
+#ifndef PCI_DEVICE_ID_AMI_MEGARAID
+#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
+#endif
+
+#ifndef PCI_DEVICE_ID_AMI_MEGARAID2
+#define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060
+#endif
+
+#ifndef PCI_DEVICE_ID_AMI_MEGARAID3
+#define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960
+#endif
+
+#define PCI_DEVICE_ID_DISCOVERY 0x000E
+#define PCI_DEVICE_ID_PERC4_DI 0x000F
+#define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407
+
+/* Sub-System Vendor IDs */
+#define AMI_SUBSYS_VID 0x101E
+#define DELL_SUBSYS_VID 0x1028
+#define HP_SUBSYS_VID 0x103C
+#define LSI_SUBSYS_VID 0x1000
+#define INTEL_SUBSYS_VID 0x8086
+
+#define HBA_SIGNATURE 0x3344
+#define HBA_SIGNATURE_471 0xCCCC
+#define HBA_SIGNATURE_64BIT 0x0299
+
+#define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for
+ mailbox to be free */
+#define DEFAULT_INITIATOR_ID 7
+
+#define MAX_SGLIST 64 /* max supported in f/w */
+#define MIN_SGLIST 26 /* guaranteed to support these many */
+#define MAX_COMMANDS 126
+#define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS
+ is less than max commands
+ supported by any f/w */
+
+#define MAX_CDB_LEN 10
+#define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */
+
+#define DEF_CMD_PER_LUN 63
+#define MAX_CMD_PER_LUN MAX_COMMANDS
+#define MAX_FIRMWARE_STATUS 46
+#define MAX_XFER_PER_CMD (64*1024)
+#define MAX_SECTORS_PER_IO 128
+
+#define MAX_LOGICAL_DRIVES_40LD 40
+#define FC_MAX_PHYSICAL_DEVICES 256
+#define MAX_LOGICAL_DRIVES_8LD 8
+#define MAX_CHANNELS 5
+#define MAX_TARGET 15
+#define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET
+#define MAX_ROW_SIZE_40LD 32
+#define MAX_ROW_SIZE_8LD 8
+#define MAX_SPAN_DEPTH 8
+
+#define NVIRT_CHAN 4 /* # of virtual channels to represent
+ up to 60 logical drives */
+struct mbox_out {
+ /* 0x0 */ u8 cmd;
+ /* 0x1 */ u8 cmdid;
+ /* 0x2 */ u16 numsectors;
+ /* 0x4 */ u32 lba;
+ /* 0x8 */ u32 xferaddr;
+ /* 0xC */ u8 logdrv;
+ /* 0xD */ u8 numsgelements;
+ /* 0xE */ u8 resvd;
+} __attribute__ ((packed));
+
+struct mbox_in {
+ /* 0xF */ volatile u8 busy;
+ /* 0x10 */ volatile u8 numstatus;
+ /* 0x11 */ volatile u8 status;
+ /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS];
+ volatile u8 poll;
+ volatile u8 ack;
+} __attribute__ ((packed));
+
+typedef struct {
+ struct mbox_out m_out;
+ struct mbox_in m_in;
+} __attribute__ ((packed)) mbox_t;
+
+typedef struct {
+ u32 xfer_segment_lo;
+ u32 xfer_segment_hi;
+ mbox_t mbox;
+} __attribute__ ((packed)) mbox64_t;
+
+
+/*
+ * Passthru definitions
+ */
+#define MAX_REQ_SENSE_LEN 0x20
+
+typedef struct {
+ u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
+ u8 ars:1;
+ u8 reserved:3;
+ u8 islogical:1;
+ u8 logdrv; /* if islogical == 1 */
+ u8 channel; /* if islogical == 0 */
+ u8 target; /* if islogical == 0 */
+ u8 queuetag; /* unused */
+ u8 queueaction; /* unused */
+ u8 cdb[MAX_CDB_LEN];
+ u8 cdblen;
+ u8 reqsenselen;
+ u8 reqsensearea[MAX_REQ_SENSE_LEN];
+ u8 numsgelements;
+ u8 scsistatus;
+ u32 dataxferaddr;
+ u32 dataxferlen;
+} __attribute__ ((packed)) mega_passthru;
+
+
+/*
+ * Extended passthru: support CDB > 10 bytes
+ */
+typedef struct {
+ u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
+ u8 ars:1;
+ u8 rsvd1:1;
+ u8 cd_rom:1;
+ u8 rsvd2:1;
+ u8 islogical:1;
+ u8 logdrv; /* if islogical == 1 */
+ u8 channel; /* if islogical == 0 */
+ u8 target; /* if islogical == 0 */
+ u8 queuetag; /* unused */
+ u8 queueaction; /* unused */
+ u8 cdblen;
+ u8 rsvd3;
+ u8 cdb[MAX_EXT_CDB_LEN];
+ u8 numsgelements;
+ u8 status;
+ u8 reqsenselen;
+ u8 reqsensearea[MAX_REQ_SENSE_LEN];
+ u8 rsvd4;
+ u32 dataxferaddr;
+ u32 dataxferlen;
+} __attribute__ ((packed)) mega_ext_passthru;
+
+typedef struct {
+ u64 address;
+ u32 length;
+} __attribute__ ((packed)) mega_sgl64;
+
+typedef struct {
+ u32 address;
+ u32 length;
+} __attribute__ ((packed)) mega_sglist;
+
+
+/* Queued command data */
+typedef struct {
+ int idx;
+ u32 state;
+ struct list_head list;
+ u8 raw_mbox[66];
+ u32 dma_type;
+ u32 dma_direction;
+
+ Scsi_Cmnd *cmd;
+ dma_addr_t dma_h_bulkdata;
+ dma_addr_t dma_h_sgdata;
+
+ mega_sglist *sgl;
+ mega_sgl64 *sgl64;
+ dma_addr_t sgl_dma_addr;
+
+ mega_passthru *pthru;
+ dma_addr_t pthru_dma_addr;
+ mega_ext_passthru *epthru;
+ dma_addr_t epthru_dma_addr;
+} scb_t;
+
+/*
+ * Flags to follow the scb as it transitions between various stages
+ */
+#define SCB_FREE 0x0000 /* on the free list */
+#define SCB_ACTIVE 0x0001 /* off the free list */
+#define SCB_PENDQ 0x0002 /* on the pending queue */
+#define SCB_ISSUED 0x0004 /* issued - owner f/w */
+#define SCB_ABORT 0x0008 /* Got an abort for this one */
+#define SCB_RESET 0x0010 /* Got a reset for this one */
+
+/*
+ * Utilities declare this strcture size as 1024 bytes. So more fields can
+ * be added in future.
+ */
+typedef struct {
+ u32 data_size; /* current size in bytes (not including resvd) */
+
+ u32 config_signature;
+ /* Current value is 0x00282008
+ * 0x28=MAX_LOGICAL_DRIVES,
+ * 0x20=Number of stripes and
+ * 0x08=Number of spans */
+
+ u8 fw_version[16]; /* printable ASCI string */
+ u8 bios_version[16]; /* printable ASCI string */
+ u8 product_name[80]; /* printable ASCI string */
+
+ u8 max_commands; /* Max. concurrent commands supported */
+ u8 nchannels; /* Number of SCSI Channels detected */
+ u8 fc_loop_present; /* Number of Fibre Loops detected */
+ u8 mem_type; /* EDO, FPM, SDRAM etc */
+
+ u32 signature;
+ u16 dram_size; /* In terms of MB */
+ u16 subsysid;
+
+ u16 subsysvid;
+ u8 notify_counters;
+ u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */
+} __attribute__ ((packed)) mega_product_info;
+
+struct notify {
+ u32 global_counter; /* Any change increments this counter */
+
+ u8 param_counter; /* Indicates any params changed */
+ u8 param_id; /* Param modified - defined below */
+ u16 param_val; /* New val of last param modified */
+
+ u8 write_config_counter; /* write config occurred */
+ u8 write_config_rsvd[3];
+
+ u8 ldrv_op_counter; /* Indicates ldrv op started/completed */
+ u8 ldrv_opid; /* ldrv num */
+ u8 ldrv_opcmd; /* ldrv operation - defined below */
+ u8 ldrv_opstatus; /* status of the operation */
+
+ u8 ldrv_state_counter; /* Indicates change of ldrv state */
+ u8 ldrv_state_id; /* ldrv num */
+ u8 ldrv_state_new; /* New state */
+ u8 ldrv_state_old; /* old state */
+
+ u8 pdrv_state_counter; /* Indicates change of ldrv state */
+ u8 pdrv_state_id; /* pdrv id */
+ u8 pdrv_state_new; /* New state */
+ u8 pdrv_state_old; /* old state */
+
+ u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */
+ u8 pdrv_fmt_id; /* pdrv id */
+ u8 pdrv_fmt_val; /* format started/over */
+ u8 pdrv_fmt_rsvd;
+
+ u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */
+ u8 targ_xfer_id; /* pdrv Id */
+ u8 targ_xfer_val; /* new Xfer params of last pdrv */
+ u8 targ_xfer_rsvd;
+
+ u8 fcloop_id_chg_counter; /* Indicates loopid changed */
+ u8 fcloopid_pdrvid; /* pdrv id */
+ u8 fcloop_id0; /* loopid on fc loop 0 */
+ u8 fcloop_id1; /* loopid on fc loop 1 */
+
+ u8 fcloop_state_counter; /* Indicates loop state changed */
+ u8 fcloop_state0; /* state of fc loop 0 */
+ u8 fcloop_state1; /* state of fc loop 1 */
+ u8 fcloop_state_rsvd;
+} __attribute__ ((packed));
+
+#define MAX_NOTIFY_SIZE 0x80
+#define CUR_NOTIFY_SIZE sizeof(struct notify)
+
+typedef struct {
+ u32 data_size; /* current size in bytes (not including resvd) */
+
+ struct notify notify;
+
+ u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
+
+ u8 rebuild_rate; /* Rebuild rate (0% - 100%) */
+ u8 cache_flush_interval; /* In terms of Seconds */
+ u8 sense_alert;
+ u8 drive_insert_count; /* drive insertion count */
+
+ u8 battery_status;
+ u8 num_ldrv; /* No. of Log Drives configured */
+ u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of
+ reconstruct */
+ u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv
+ Status */
+
+ u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */
+ u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
+ u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */
+ u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */
+ u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];
+
+ u8 targ_xfer[80]; /* phys device transfer rate */
+ u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */
+} __attribute__ ((packed)) mega_inquiry3;
+
+
+/* Structures */
+typedef struct {
+ u8 max_commands; /* Max concurrent commands supported */
+ u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */
+ u8 max_targ_per_chan; /* Max targ per channel */
+ u8 nchannels; /* Number of channels on HBA */
+ u8 fw_version[4]; /* Firmware version */
+ u16 age_of_flash; /* Number of times FW has been flashed */
+ u8 chip_set_value; /* Contents of 0xC0000832 */
+ u8 dram_size; /* In MB */
+ u8 cache_flush_interval; /* in seconds */
+ u8 bios_version[4];
+ u8 board_type;
+ u8 sense_alert;
+ u8 write_config_count; /* Increase with every configuration
+ change */
+ u8 drive_inserted_count; /* Increase with every drive inserted
+ */
+ u8 inserted_drive; /* Channel:Id of inserted drive */
+ u8 battery_status; /*
+ * BIT 0: battery module missing
+ * BIT 1: VBAD
+ * BIT 2: temprature high
+ * BIT 3: battery pack missing
+ * BIT 4,5:
+ * 00 - charge complete
+ * 01 - fast charge in progress
+ * 10 - fast charge fail
+ * 11 - undefined
+ * Bit 6: counter > 1000
+ * Bit 7: Undefined
+ */
+ u8 dec_fault_bus_info;
+} __attribute__ ((packed)) mega_adp_info;
+
+
+typedef struct {
+ u8 num_ldrv; /* Number of logical drives configured */
+ u8 rsvd[3];
+ u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD];
+ u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD];
+ u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD];
+} __attribute__ ((packed)) mega_ldrv_info;
+
+typedef struct {
+ u8 pdrv_state[MAX_PHYSICAL_DRIVES];
+ u8 rsvd;
+} __attribute__ ((packed)) mega_pdrv_info;
+
+/* RAID inquiry: Mailbox command 0x05*/
+typedef struct {
+ mega_adp_info adapter_info;
+ mega_ldrv_info logdrv_info;
+ mega_pdrv_info pdrv_info;
+} __attribute__ ((packed)) mraid_inquiry;
+
+
+/* RAID extended inquiry: Mailbox command 0x04*/
+typedef struct {
+ mraid_inquiry raid_inq;
+ u16 phys_drv_format[MAX_CHANNELS];
+ u8 stack_attn;
+ u8 modem_status;
+ u8 rsvd[2];
+} __attribute__ ((packed)) mraid_ext_inquiry;
+
+
+typedef struct {
+ u8 channel;
+ u8 target;
+}__attribute__ ((packed)) adp_device;
+
+typedef struct {
+ u32 start_blk; /* starting block */
+ u32 num_blks; /* # of blocks */
+ adp_device device[MAX_ROW_SIZE_40LD];
+}__attribute__ ((packed)) adp_span_40ld;
+
+typedef struct {
+ u32 start_blk; /* starting block */
+ u32 num_blks; /* # of blocks */
+ adp_device device[MAX_ROW_SIZE_8LD];
+}__attribute__ ((packed)) adp_span_8ld;
+
+typedef struct {
+ u8 span_depth; /* Total # of spans */
+ u8 level; /* RAID level */
+ u8 read_ahead; /* read ahead, no read ahead, adaptive read
+ ahead */
+ u8 stripe_sz; /* Encoded stripe size */
+ u8 status; /* Status of the logical drive */
+ u8 write_mode; /* write mode, write_through/write_back */
+ u8 direct_io; /* direct io or through cache */
+ u8 row_size; /* Number of stripes in a row */
+} __attribute__ ((packed)) logdrv_param;
+
+typedef struct {
+ logdrv_param lparam;
+ adp_span_40ld span[MAX_SPAN_DEPTH];
+}__attribute__ ((packed)) logdrv_40ld;
+
+typedef struct {
+ logdrv_param lparam;
+ adp_span_8ld span[MAX_SPAN_DEPTH];
+}__attribute__ ((packed)) logdrv_8ld;
+
+typedef struct {
+ u8 type; /* Type of the device */
+ u8 cur_status; /* current status of the device */
+ u8 tag_depth; /* Level of tagging */
+ u8 sync_neg; /* sync negotiation - ENABLE or DISBALE */
+ u32 size; /* configurable size in terms of 512 byte
+ blocks */
+}__attribute__ ((packed)) phys_drv;
+
+typedef struct {
+ u8 nlog_drives; /* number of logical drives */
+ u8 resvd[3];
+ logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD];
+ phys_drv pdrv[MAX_PHYSICAL_DRIVES];
+}__attribute__ ((packed)) disk_array_40ld;
+
+typedef struct {
+ u8 nlog_drives; /* number of logical drives */
+ u8 resvd[3];
+ logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD];
+ phys_drv pdrv[MAX_PHYSICAL_DRIVES];
+}__attribute__ ((packed)) disk_array_8ld;
+
+
+/*
+ * User ioctl structure.
+ * This structure will be used for Traditional Method ioctl interface
+ * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the
+ * Driver ioctls.
+ * The Driver ioctl interface handles the commands at the driver level,
+ * without being sent to the card.
+ */
+/* system call imposed limit. Change accordingly */
+#define IOCTL_MAX_DATALEN 4096
+
+struct uioctl_t {
+ u32 inlen;
+ u32 outlen;
+ union {
+ u8 fca[16];
+ struct {
+ u8 opcode;
+ u8 subopcode;
+ u16 adapno;
+#if BITS_PER_LONG == 32
+ u8 *buffer;
+ u8 pad[4];
+#endif
+#if BITS_PER_LONG == 64
+ u8 *buffer;
+#endif
+ u32 length;
+ } __attribute__ ((packed)) fcs;
+ } __attribute__ ((packed)) ui;
+ u8 mbox[18]; /* 16 bytes + 2 status bytes */
+ mega_passthru pthru;
+#if BITS_PER_LONG == 32
+ char __user *data; /* buffer <= 4096 for 0x80 commands */
+ char pad[4];
+#endif
+#if BITS_PER_LONG == 64
+ char __user *data;
+#endif
+} __attribute__ ((packed));
+
+/*
+ * struct mcontroller is used to pass information about the controllers in the
+ * system. Its upto the application how to use the information. We are passing
+ * as much info about the cards as possible and useful. Before issuing the
+ * call to find information about the cards, the applicaiton needs to issue a
+ * ioctl first to find out the number of controllers in the system.
+ */
+#define MAX_CONTROLLERS 32
+
+struct mcontroller {
+ u64 base;
+ u8 irq;
+ u8 numldrv;
+ u8 pcibus;
+ u16 pcidev;
+ u8 pcifun;
+ u16 pciid;
+ u16 pcivendor;
+ u8 pcislot;
+ u32 uid;
+};
+
+/*
+ * mailbox structure used for internal commands
+ */
+typedef struct {
+ u8 cmd;
+ u8 cmdid;
+ u8 opcode;
+ u8 subopcode;
+ u32 lba;
+ u32 xferaddr;
+ u8 logdrv;
+ u8 rsvd[3];
+ u8 numstatus;
+ u8 status;
+} __attribute__ ((packed)) megacmd_t;
+
+/*
+ * Defines for Driver IOCTL interface
+ */
+#define MEGAIOC_MAGIC 'm'
+
+#define MEGAIOC_QNADAP 'm' /* Query # of adapters */
+#define MEGAIOC_QDRVRVER 'e' /* Query driver version */
+#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */
+#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) )
+#define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 )
+
+/*
+ * Definition for the new ioctl interface (NIT)
+ */
+
+/*
+ * Vendor specific Group-7 commands
+ */
+#define VENDOR_SPECIFIC_COMMANDS 0xE0
+#define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01
+
+/*
+ * The ioctl command. No other command shall be used for this interface
+ */
+#define USCSICMD VENDOR_SPECIFIC_COMMANDS
+
+/*
+ * Data direction flags
+ */
+#define UIOC_RD 0x00001
+#define UIOC_WR 0x00002
+
+/*
+ * ioctl opcodes
+ */
+#define MBOX_CMD 0x00000 /* DCMD or passthru command */
+#define GET_DRIVER_VER 0x10000 /* Get driver version */
+#define GET_N_ADAP 0x20000 /* Get number of adapters */
+#define GET_ADAP_INFO 0x30000 /* Get information about a adapter */
+#define GET_CAP 0x40000 /* Get ioctl capabilities */
+#define GET_STATS 0x50000 /* Get statistics, including error info */
+
+
+/*
+ * The ioctl structure.
+ * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and
+ * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer.
+ */
+typedef struct {
+ char signature[8]; /* Must contain "MEGANIT" */
+ u32 opcode; /* opcode for the command */
+ u32 adapno; /* adapter number */
+ union {
+ u8 __raw_mbox[18];
+ void __user *__uaddr; /* xferaddr for non-mbox cmds */
+ }__ua;
+
+#define uioc_rmbox __ua.__raw_mbox
+#define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0]))
+#define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0]))
+#define uioc_uaddr __ua.__uaddr
+
+ u32 xferlen; /* xferlen for DCMD and non-mbox
+ commands */
+ u32 flags; /* data direction flags */
+}nitioctl_t;
+
+
+/*
+ * I/O statistics for some applications like SNMP agent. The caller must
+ * provide the number of logical drives for which status should be reported.
+ */
+typedef struct {
+ int num_ldrv; /* Number for logical drives for which the
+ status should be reported. */
+ u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for
+ each logical drive */
+ u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
+ read for each logical
+ drive */
+ u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes
+ for each logical
+ drive */
+ u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
+ writes for each
+ logical drive */
+ u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read
+ errors for each
+ logical drive */
+ u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write
+ errors for each
+ logical drive */
+}megastat_t;
+
+
+struct private_bios_data {
+ u8 geometry:4; /*
+ * bits 0-3 - BIOS geometry
+ * 0x0001 - 1GB
+ * 0x0010 - 2GB
+ * 0x1000 - 8GB
+ * Others values are invalid
+ */
+ u8 unused:4; /* bits 4-7 are unused */
+ u8 boot_drv; /*
+ * logical drive set as boot drive
+ * 0..7 - for 8LD cards
+ * 0..39 - for 40LD cards
+ */
+ u8 rsvd[12];
+ u16 cksum; /* 0-(sum of first 13 bytes of this structure) */
+} __attribute__ ((packed));
+
+
+
+
+/*
+ * Mailbox and firmware commands and subopcodes used in this driver.
+ */
+
+#define MEGA_MBOXCMD_LREAD 0x01
+#define MEGA_MBOXCMD_LWRITE 0x02
+#define MEGA_MBOXCMD_PASSTHRU 0x03
+#define MEGA_MBOXCMD_ADPEXTINQ 0x04
+#define MEGA_MBOXCMD_ADAPTERINQ 0x05
+#define MEGA_MBOXCMD_LREAD64 0xA7
+#define MEGA_MBOXCMD_LWRITE64 0xA8
+#define MEGA_MBOXCMD_PASSTHRU64 0xC3
+#define MEGA_MBOXCMD_EXTPTHRU 0xE3
+
+#define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */
+#define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */
+
+#define FC_NEW_CONFIG 0xA1
+#define NC_SUBOP_PRODUCT_INFO 0x0E
+#define NC_SUBOP_ENQUIRY3 0x0F
+#define ENQ3_GET_SOLICITED_FULL 0x02
+#define OP_DCMD_READ_CONFIG 0x04
+#define NEW_READ_CONFIG_8LD 0x67
+#define READ_CONFIG_8LD 0x07
+#define FLUSH_ADAPTER 0x0A
+#define FLUSH_SYSTEM 0xFE
+
+/*
+ * Command for random deletion of logical drives
+ */
+#define FC_DEL_LOGDRV 0xA4 /* f/w command */
+#define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */
+#define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */
+#define OP_DEL_LOGDRV 0x1C /* delete logical drive */
+
+/*
+ * BIOS commands
+ */
+#define IS_BIOS_ENABLED 0x62
+#define GET_BIOS 0x01
+#define CHNL_CLASS 0xA9
+#define GET_CHNL_CLASS 0x00
+#define SET_CHNL_CLASS 0x01
+#define CH_RAID 0x01
+#define CH_SCSI 0x00
+#define BIOS_PVT_DATA 0x40
+#define GET_BIOS_PVT_DATA 0x00
+
+
+/*
+ * Commands to support clustering
+ */
+#define MEGA_GET_TARGET_ID 0x7D
+#define MEGA_CLUSTER_OP 0x70
+#define MEGA_GET_CLUSTER_MODE 0x02
+#define MEGA_CLUSTER_CMD 0x6E
+#define MEGA_RESERVE_LD 0x01
+#define MEGA_RELEASE_LD 0x02
+#define MEGA_RESET_RESERVATIONS 0x03
+#define MEGA_RESERVATION_STATUS 0x04
+#define MEGA_RESERVE_PD 0x05
+#define MEGA_RELEASE_PD 0x06
+
+
+/*
+ * Module battery status
+ */
+#define MEGA_BATT_MODULE_MISSING 0x01
+#define MEGA_BATT_LOW_VOLTAGE 0x02
+#define MEGA_BATT_TEMP_HIGH 0x04
+#define MEGA_BATT_PACK_MISSING 0x08
+#define MEGA_BATT_CHARGE_MASK 0x30
+#define MEGA_BATT_CHARGE_DONE 0x00
+#define MEGA_BATT_CHARGE_INPROG 0x10
+#define MEGA_BATT_CHARGE_FAIL 0x20
+#define MEGA_BATT_CYCLES_EXCEEDED 0x40
+
+/*
+ * Physical drive states.
+ */
+#define PDRV_UNCNF 0
+#define PDRV_ONLINE 3
+#define PDRV_FAILED 4
+#define PDRV_RBLD 5
+#define PDRV_HOTSPARE 6
+
+
+/*
+ * Raid logical drive states.
+ */
+#define RDRV_OFFLINE 0
+#define RDRV_DEGRADED 1
+#define RDRV_OPTIMAL 2
+#define RDRV_DELETED 3
+
+/*
+ * Read, write and cache policies
+ */
+#define NO_READ_AHEAD 0
+#define READ_AHEAD 1
+#define ADAP_READ_AHEAD 2
+#define WRMODE_WRITE_THRU 0
+#define WRMODE_WRITE_BACK 1
+#define CACHED_IO 0
+#define DIRECT_IO 1
+
+
+#define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp))
+
+/*
+ * Each controller's soft state
+ */
+typedef struct {
+ int this_id; /* our id, may set to different than 7 if
+ clustering is available */
+ u32 flag;
+
+ unsigned long base;
+
+ /* mbox64 with mbox not aligned on 16-byte boundry */
+ mbox64_t *una_mbox64;
+ dma_addr_t una_mbox64_dma;
+
+ volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */
+ volatile mbox_t *mbox; /* ptr to standard mailbox */
+ dma_addr_t mbox_dma;
+
+ struct pci_dev *dev;
+
+ struct list_head free_list;
+ struct list_head pending_list;
+ struct list_head completed_list;
+
+ struct Scsi_Host *host;
+
+#define MEGA_BUFFER_SIZE (2*1024)
+ u8 *mega_buffer;
+ dma_addr_t buf_dma_handle;
+
+ mega_product_info product_info;
+
+ u8 max_cmds;
+ scb_t *scb_list;
+
+ atomic_t pend_cmds; /* maintain a counter for pending
+ commands in firmware */
+
+#if MEGA_HAVE_STATS
+ u32 nreads[MAX_LOGICAL_DRIVES_40LD];
+ u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD];
+ u32 nwrites[MAX_LOGICAL_DRIVES_40LD];
+ u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD];
+ u32 rd_errors[MAX_LOGICAL_DRIVES_40LD];
+ u32 wr_errors[MAX_LOGICAL_DRIVES_40LD];
+#endif
+
+ /* Host adapter parameters */
+ u8 numldrv;
+ u8 fw_version[7];
+ u8 bios_version[7];
+
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *controller_proc_dir_entry;
+ struct proc_dir_entry *proc_read;
+ struct proc_dir_entry *proc_stat;
+ struct proc_dir_entry *proc_mbox;
+
+#if MEGA_HAVE_ENH_PROC
+ struct proc_dir_entry *proc_rr;
+ struct proc_dir_entry *proc_battery;
+#define MAX_PROC_CHANNELS 4
+ struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
+ struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
+#endif
+
+#endif
+
+ int has_64bit_addr; /* are we using 64-bit addressing */
+ int support_ext_cdb;
+ int boot_ldrv_enabled;
+ int boot_ldrv;
+ int boot_pdrv_enabled; /* boot from physical drive */
+ int boot_pdrv_ch; /* boot physical drive channel */
+ int boot_pdrv_tgt; /* boot physical drive target */
+
+
+ int support_random_del; /* Do we support random deletion of
+ logdrvs */
+ int read_ldidmap; /* set after logical drive deltion. The
+ logical drive number must be read from the
+ map */
+ atomic_t quiescent; /* a stage reached when delete logical
+ drive needs to be done. Stop
+ sending requests to the hba till
+ delete operation is completed */
+ spinlock_t lock;
+
+ u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on
+ what channels. */
+ int mega_ch_class;
+
+ u8 sglen; /* f/w supported scatter-gather list length */
+
+ scb_t int_scb;
+ Scsi_Cmnd int_scmd;
+ struct semaphore int_mtx; /* To synchronize the internal
+ commands */
+ wait_queue_head_t int_waitq; /* wait queue for internal
+ cmds */
+
+ int has_cluster; /* cluster support on this HBA */
+}adapter_t;
+
+
+struct mega_hbas {
+ int is_bios_enabled;
+ adapter_t *hostdata_addr;
+};
+
+
+/*
+ * For state flag. Do not use LSB(8 bits) which are
+ * reserved for storing info about channels.
+ */
+#define IN_ABORT 0x80000000L
+#define IN_RESET 0x40000000L
+#define BOARD_MEMMAP 0x20000000L
+#define BOARD_IOMAP 0x10000000L
+#define BOARD_40LD 0x08000000L
+#define BOARD_64BIT 0x04000000L
+
+#define INTR_VALID 0x40
+
+#define PCI_CONF_AMISIG 0xa0
+#define PCI_CONF_AMISIG64 0xa4
+
+
+#define MEGA_DMA_TYPE_NONE 0xFFFF
+#define MEGA_BULK_DATA 0x0001
+#define MEGA_SGLIST 0x0002
+
+/*
+ * lockscope definitions, callers can specify the lock scope with this data
+ * type. LOCK_INT would mean the caller has not acquired the lock before
+ * making the call and LOCK_EXT would mean otherwise.
+ */
+typedef enum { LOCK_INT, LOCK_EXT } lockscope_t;
+
+/*
+ * Parameters for the io-mapped controllers
+ */
+
+/* I/O Port offsets */
+#define CMD_PORT 0x00
+#define ACK_PORT 0x00
+#define TOGGLE_PORT 0x01
+#define INTR_PORT 0x0a
+
+#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 issue_command(adapter) \
+ outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT)
+
+#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT)
+
+#define set_irq_state(adapter, value) \
+ outb_p((value), (adapter)->base + INTR_PORT)
+
+#define irq_ack(adapter) \
+ outb_p(ACK_BYTE, (adapter)->base + ACK_PORT)
+
+#define irq_enable(adapter) \
+ outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
+
+#define irq_disable(adapter) \
+ outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
+
+
+/*
+ * This is our SYSDEP area. All kernel specific detail should be placed here -
+ * as much as possible
+ */
+
+/*
+ * End of SYSDEP area
+ */
+
+const char *megaraid_info (struct Scsi_Host *);
+
+static int mega_query_adapter(adapter_t *);
+static int issue_scb(adapter_t *, scb_t *);
+static int mega_setup_mailbox(adapter_t *);
+
+static int megaraid_queue (Scsi_Cmnd *, void (*)(Scsi_Cmnd *));
+static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
+static void __mega_runpendq(adapter_t *);
+static int issue_scb_block(adapter_t *, u_char *);
+
+static irqreturn_t megaraid_isr_memmapped(int, void *, struct pt_regs *);
+static irqreturn_t megaraid_isr_iomapped(int, void *, struct pt_regs *);
+
+static void mega_free_scb(adapter_t *, scb_t *);
+
+static int megaraid_abort(Scsi_Cmnd *);
+static int megaraid_reset(Scsi_Cmnd *);
+static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
+static int megaraid_biosparam(struct scsi_device *, struct block_device *,
+ sector_t, int []);
+static int mega_print_inquiry(char *, char *);
+
+static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
+ u32 *buffer, u32 *length);
+static int __mega_busywait_mbox (adapter_t *);
+static void mega_rundoneq (adapter_t *);
+static void mega_cmd_done(adapter_t *, u8 [], int, int);
+static inline void mega_free_sgl (adapter_t *adapter);
+static void mega_8_to_40ld (mraid_inquiry *inquiry,
+ mega_inquiry3 *enquiry3, mega_product_info *);
+
+static int megadev_open (struct inode *, struct file *);
+static int megadev_ioctl (struct inode *, struct file *, unsigned int,
+ unsigned long);
+static int mega_m_to_n(void __user *, nitioctl_t *);
+static int mega_n_to_m(void __user *, megacmd_t *);
+
+static int mega_init_scb (adapter_t *);
+
+static int mega_is_bios_enabled (adapter_t *);
+
+#ifdef CONFIG_PROC_FS
+static void mega_create_proc_entry(int, struct proc_dir_entry *);
+static int proc_read_config(char *, char **, off_t, int, int *, void *);
+static int proc_read_stat(char *, char **, off_t, int, int *, void *);
+static int proc_read_mbox(char *, char **, off_t, int, int *, void *);
+static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *);
+static int proc_battery(char *, char **, off_t, int, int *, void *);
+static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *);
+static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *);
+static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *);
+static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *);
+static int proc_pdrv(adapter_t *, char *, int);
+static int proc_rdrv_10(char *, char **, off_t, int, int *, void *);
+static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
+static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
+static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
+static int proc_rdrv(adapter_t *, char *, int, int);
+#endif
+
+static int mega_adapinq(adapter_t *, dma_addr_t);
+static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
+
+static int mega_support_ext_cdb(adapter_t *);
+static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
+ Scsi_Cmnd *, int, int);
+static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
+ scb_t *, Scsi_Cmnd *, int, int);
+static void mega_enum_raid_scsi(adapter_t *);
+static void mega_get_boot_drv(adapter_t *);
+static int mega_support_random_del(adapter_t *);
+static int mega_del_logdrv(adapter_t *, int);
+static int mega_do_del_logdrv(adapter_t *, int);
+static void mega_get_max_sgl(adapter_t *);
+static int mega_internal_command(adapter_t *, lockscope_t, megacmd_t *,
+ mega_passthru *);
+static void mega_internal_done(Scsi_Cmnd *);
+static int mega_support_cluster(adapter_t *);
+#endif
+
+/* vi: set ts=8 sw=8 tw=78: */
