diff options
Diffstat (limited to 'drivers/scsi/megaraid.h')
| -rw-r--r-- | drivers/scsi/megaraid.h | 1071 |
1 files changed, 1071 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h new file mode 100644 index 00000000000..e25c4de9edd --- /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: */ |