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Diffstat (limited to 'drivers/scsi/BusLogic.h')
| -rw-r--r-- | drivers/scsi/BusLogic.h | 1284 |
1 files changed, 1284 insertions, 0 deletions
diff --git a/drivers/scsi/BusLogic.h b/drivers/scsi/BusLogic.h new file mode 100644 index 000000000..7d1ec10f2 --- /dev/null +++ b/drivers/scsi/BusLogic.h @@ -0,0 +1,1284 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + + Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters + + Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com> + + + The author respectfully requests that any modifications to this software be + sent directly to him for evaluation and testing. + + Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose + advice has been invaluable, to David Gentzel, for writing the original Linux + BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site. + + Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB + Manager available as freely redistributable source code. + +*/ + +#ifndef _BUSLOGIC_H +#define _BUSLOGIC_H + + +#ifndef PACKED +#define PACKED __attribute__((packed)) +#endif + +/* + Define the maximum number of BusLogic Host Adapters supported by this driver. +*/ + +#define BLOGIC_MAX_ADAPTERS 16 + + +/* + Define the maximum number of Target Devices supported by this driver. +*/ + +#define BLOGIC_MAXDEV 16 + + +/* + Define the maximum number of Scatter/Gather Segments used by this driver. + For optimal performance, it is important that this limit be at least as + large as the largest single request generated by the I/O Subsystem. +*/ + +#define BLOGIC_SG_LIMIT 128 + + +/* + Define the maximum, maximum automatic, minimum automatic, and default Queue + Depth to allow for Target Devices depending on whether or not they support + Tagged Queuing and whether or not ISA Bounce Buffers are required. +*/ + +#define BLOGIC_MAX_TAG_DEPTH 64 +#define BLOGIC_MAX_AUTO_TAG_DEPTH 28 +#define BLOGIC_MIN_AUTO_TAG_DEPTH 7 +#define BLOGIC_TAG_DEPTH_BB 3 +#define BLOGIC_UNTAG_DEPTH 3 +#define BLOGIC_UNTAG_DEPTH_BB 2 + + +/* + Define the default amount of time in seconds to wait between a Host Adapter + Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands. + Some SCSI devices get confused if they receive SCSI commands too soon after + a SCSI Bus Reset. +*/ + +#define BLOGIC_BUS_SETTLE_TIME 2 + + +/* + Define the maximum number of Mailboxes that should be used for MultiMaster + Host Adapters. This number is chosen to be larger than the maximum Host + Adapter Queue Depth and small enough so that the Host Adapter structure + does not cross an allocation block size boundary. +*/ + +#define BLOGIC_MAX_MAILBOX 211 + + +/* + Define the number of CCBs that should be allocated as a group to optimize + Kernel memory allocation. +*/ + +#define BLOGIC_CCB_GRP_ALLOCSIZE 7 + + +/* + Define the Host Adapter Line and Message Buffer Sizes. +*/ + +#define BLOGIC_LINEBUF_SIZE 100 +#define BLOGIC_MSGBUF_SIZE 9700 + + +/* + Define the Driver Message Levels. +*/ + +enum blogic_msglevel { + BLOGIC_ANNOUNCE_LEVEL = 0, + BLOGIC_INFO_LEVEL = 1, + BLOGIC_NOTICE_LEVEL = 2, + BLOGIC_WARN_LEVEL = 3, + BLOGIC_ERR_LEVEL = 4 +}; + +static char *blogic_msglevelmap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR }; + + +/* + Define Driver Message macros. +*/ + +#define blogic_announce(format, args...) \ + blogic_msg(BLOGIC_ANNOUNCE_LEVEL, format, ##args) + +#define blogic_info(format, args...) \ + blogic_msg(BLOGIC_INFO_LEVEL, format, ##args) + +#define blogic_notice(format, args...) \ + blogic_msg(BLOGIC_NOTICE_LEVEL, format, ##args) + +#define blogic_warn(format, args...) \ + blogic_msg(BLOGIC_WARN_LEVEL, format, ##args) + +#define blogic_err(format, args...) \ + blogic_msg(BLOGIC_ERR_LEVEL, format, ##args) + + +/* + Define the types of BusLogic Host Adapters that are supported and the number + of I/O Addresses required by each type. +*/ + +enum blogic_adapter_type { + BLOGIC_MULTIMASTER = 1, + BLOGIC_FLASHPOINT = 2 +} PACKED; + +#define BLOGIC_MULTIMASTER_ADDR_COUNT 4 +#define BLOGIC_FLASHPOINT_ADDR_COUNT 256 + +static int blogic_adapter_addr_count[3] = { 0, BLOGIC_MULTIMASTER_ADDR_COUNT, BLOGIC_FLASHPOINT_ADDR_COUNT }; + + +/* + Define macros for testing the Host Adapter Type. +*/ + +#ifdef CONFIG_SCSI_FLASHPOINT + +#define blogic_multimaster_type(adapter) \ + (adapter->adapter_type == BLOGIC_MULTIMASTER) + +#define blogic_flashpoint_type(adapter) \ + (adapter->adapter_type == BLOGIC_FLASHPOINT) + +#else + +#define blogic_multimaster_type(adapter) (true) +#define blogic_flashpoint_type(adapter) (false) + +#endif + + +/* + Define the possible Host Adapter Bus Types. +*/ + +enum blogic_adapter_bus_type { + BLOGIC_UNKNOWN_BUS = 0, + BLOGIC_ISA_BUS = 1, + BLOGIC_EISA_BUS = 2, + BLOGIC_PCI_BUS = 3, + BLOGIC_VESA_BUS = 4, + BLOGIC_MCA_BUS = 5 +} PACKED; + +static char *blogic_adapter_busnames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" }; + +static enum blogic_adapter_bus_type blogic_adater_bus_types[] = { + BLOGIC_VESA_BUS, /* BT-4xx */ + BLOGIC_ISA_BUS, /* BT-5xx */ + BLOGIC_MCA_BUS, /* BT-6xx */ + BLOGIC_EISA_BUS, /* BT-7xx */ + BLOGIC_UNKNOWN_BUS, /* BT-8xx */ + BLOGIC_PCI_BUS /* BT-9xx */ +}; + +/* + Define the possible Host Adapter BIOS Disk Geometry Translations. +*/ + +enum blogic_bios_diskgeometry { + BLOGIC_BIOS_NODISK = 0, + BLOGIC_BIOS_DISK64x32 = 1, + BLOGIC_BIOS_DISK128x32 = 2, + BLOGIC_BIOS_DISK255x63 = 3 +} PACKED; + + +/* + Define a 10^18 Statistics Byte Counter data type. +*/ + +struct blogic_byte_count { + unsigned int units; + unsigned int billions; +}; + + +/* + Define the structure for I/O Address and Bus Probing Information. +*/ + +struct blogic_probeinfo { + enum blogic_adapter_type adapter_type; + enum blogic_adapter_bus_type adapter_bus_type; + unsigned long io_addr; + unsigned long pci_addr; + struct pci_dev *pci_device; + unsigned char bus; + unsigned char dev; + unsigned char irq_ch; +}; + +/* + Define the Probe Options. +*/ + +struct blogic_probe_options { + bool noprobe:1; /* Bit 0 */ + bool noprobe_pci:1; /* Bit 2 */ + bool nosort_pci:1; /* Bit 3 */ + bool multimaster_first:1; /* Bit 4 */ + bool flashpoint_first:1; /* Bit 5 */ +}; + +/* + Define the Global Options. +*/ + +struct blogic_global_options { + bool trace_probe:1; /* Bit 0 */ + bool trace_hw_reset:1; /* Bit 1 */ + bool trace_config:1; /* Bit 2 */ + bool trace_err:1; /* Bit 3 */ +}; + +/* + Define the BusLogic SCSI Host Adapter I/O Register Offsets. +*/ + +#define BLOGIC_CNTRL_REG 0 /* WO register */ +#define BLOGIC_STATUS_REG 0 /* RO register */ +#define BLOGIC_CMD_PARM_REG 1 /* WO register */ +#define BLOGIC_DATAIN_REG 1 /* RO register */ +#define BLOGIC_INT_REG 2 /* RO register */ +#define BLOGIC_GEOMETRY_REG 3 /* RO register */ + +/* + Define the structure of the write-only Control Register. +*/ + +union blogic_cntrl_reg { + unsigned char all; + struct { + unsigned char:4; /* Bits 0-3 */ + bool bus_reset:1; /* Bit 4 */ + bool int_reset:1; /* Bit 5 */ + bool soft_reset:1; /* Bit 6 */ + bool hard_reset:1; /* Bit 7 */ + } cr; +}; + +/* + Define the structure of the read-only Status Register. +*/ + +union blogic_stat_reg { + unsigned char all; + struct { + bool cmd_invalid:1; /* Bit 0 */ + bool rsvd:1; /* Bit 1 */ + bool datain_ready:1; /* Bit 2 */ + bool cmd_param_busy:1; /* Bit 3 */ + bool adapter_ready:1; /* Bit 4 */ + bool init_reqd:1; /* Bit 5 */ + bool diag_failed:1; /* Bit 6 */ + bool diag_active:1; /* Bit 7 */ + } sr; +}; + +/* + Define the structure of the read-only Interrupt Register. +*/ + +union blogic_int_reg { + unsigned char all; + struct { + bool mailin_loaded:1; /* Bit 0 */ + bool mailout_avail:1; /* Bit 1 */ + bool cmd_complete:1; /* Bit 2 */ + bool ext_busreset:1; /* Bit 3 */ + unsigned char rsvd:3; /* Bits 4-6 */ + bool int_valid:1; /* Bit 7 */ + } ir; +}; + +/* + Define the structure of the read-only Geometry Register. +*/ + +union blogic_geo_reg { + unsigned char all; + struct { + enum blogic_bios_diskgeometry d0_geo:2; /* Bits 0-1 */ + enum blogic_bios_diskgeometry d1_geo:2; /* Bits 2-3 */ + unsigned char:3; /* Bits 4-6 */ + bool ext_trans_enable:1; /* Bit 7 */ + } gr; +}; + +/* + Define the BusLogic SCSI Host Adapter Command Register Operation Codes. +*/ + +enum blogic_opcode { + BLOGIC_TEST_CMP_COMPLETE = 0x00, + BLOGIC_INIT_MBOX = 0x01, + BLOGIC_EXEC_MBOX_CMD = 0x02, + BLOGIC_EXEC_BIOS_CMD = 0x03, + BLOGIC_GET_BOARD_ID = 0x04, + BLOGIC_ENABLE_OUTBOX_AVAIL_INT = 0x05, + BLOGIC_SET_SELECT_TIMEOUT = 0x06, + BLOGIC_SET_PREEMPT_TIME = 0x07, + BLOGIC_SET_TIMEOFF_BUS = 0x08, + BLOGIC_SET_TXRATE = 0x09, + BLOGIC_INQ_DEV0TO7 = 0x0A, + BLOGIC_INQ_CONFIG = 0x0B, + BLOGIC_TGT_MODE = 0x0C, + BLOGIC_INQ_SETUPINFO = 0x0D, + BLOGIC_WRITE_LOCALRAM = 0x1A, + BLOGIC_READ_LOCALRAM = 0x1B, + BLOGIC_WRITE_BUSMASTER_FIFO = 0x1C, + BLOGIC_READ_BUSMASTER_FIFO = 0x1D, + BLOGIC_ECHO_CMDDATA = 0x1F, + BLOGIC_ADAPTER_DIAG = 0x20, + BLOGIC_SET_OPTIONS = 0x21, + BLOGIC_INQ_DEV8TO15 = 0x23, + BLOGIC_INQ_DEV = 0x24, + BLOGIC_DISABLE_INT = 0x25, + BLOGIC_INIT_EXT_MBOX = 0x81, + BLOGIC_EXEC_SCS_CMD = 0x83, + BLOGIC_INQ_FWVER_D3 = 0x84, + BLOGIC_INQ_FWVER_LETTER = 0x85, + BLOGIC_INQ_PCI_INFO = 0x86, + BLOGIC_INQ_MODELNO = 0x8B, + BLOGIC_INQ_SYNC_PERIOD = 0x8C, + BLOGIC_INQ_EXTSETUP = 0x8D, + BLOGIC_STRICT_RR = 0x8F, + BLOGIC_STORE_LOCALRAM = 0x90, + BLOGIC_FETCH_LOCALRAM = 0x91, + BLOGIC_STORE_TO_EEPROM = 0x92, + BLOGIC_LOAD_AUTOSCSICODE = 0x94, + BLOGIC_MOD_IOADDR = 0x95, + BLOGIC_SETCCB_FMT = 0x96, + BLOGIC_WRITE_INQBUF = 0x9A, + BLOGIC_READ_INQBUF = 0x9B, + BLOGIC_FLASH_LOAD = 0xA7, + BLOGIC_READ_SCAMDATA = 0xA8, + BLOGIC_WRITE_SCAMDATA = 0xA9 +}; + +/* + Define the Inquire Board ID reply structure. +*/ + +struct blogic_board_id { + unsigned char type; /* Byte 0 */ + unsigned char custom_features; /* Byte 1 */ + unsigned char fw_ver_digit1; /* Byte 2 */ + unsigned char fw_ver_digit2; /* Byte 3 */ +}; + +/* + Define the Inquire Configuration reply structure. +*/ + +struct blogic_config { + unsigned char:5; /* Byte 0 Bits 0-4 */ + bool dma_ch5:1; /* Byte 0 Bit 5 */ + bool dma_ch6:1; /* Byte 0 Bit 6 */ + bool dma_ch7:1; /* Byte 0 Bit 7 */ + bool irq_ch9:1; /* Byte 1 Bit 0 */ + bool irq_ch10:1; /* Byte 1 Bit 1 */ + bool irq_ch11:1; /* Byte 1 Bit 2 */ + bool irq_ch12:1; /* Byte 1 Bit 3 */ + unsigned char:1; /* Byte 1 Bit 4 */ + bool irq_ch14:1; /* Byte 1 Bit 5 */ + bool irq_ch15:1; /* Byte 1 Bit 6 */ + unsigned char:1; /* Byte 1 Bit 7 */ + unsigned char id:4; /* Byte 2 Bits 0-3 */ + unsigned char:4; /* Byte 2 Bits 4-7 */ +}; + +/* + Define the Inquire Setup Information reply structure. +*/ + +struct blogic_syncval { + unsigned char offset:4; /* Bits 0-3 */ + unsigned char tx_period:3; /* Bits 4-6 */ + bool sync:1; /* Bit 7 */ +}; + +struct blogic_setup_info { + bool sync:1; /* Byte 0 Bit 0 */ + bool parity:1; /* Byte 0 Bit 1 */ + unsigned char:6; /* Byte 0 Bits 2-7 */ + unsigned char tx_rate; /* Byte 1 */ + unsigned char preempt_time; /* Byte 2 */ + unsigned char timeoff_bus; /* Byte 3 */ + unsigned char mbox_count; /* Byte 4 */ + unsigned char mbox_addr[3]; /* Bytes 5-7 */ + struct blogic_syncval sync0to7[8]; /* Bytes 8-15 */ + unsigned char disconnect_ok0to7; /* Byte 16 */ + unsigned char sig; /* Byte 17 */ + unsigned char char_d; /* Byte 18 */ + unsigned char bus_type; /* Byte 19 */ + unsigned char wide_tx_ok0to7; /* Byte 20 */ + unsigned char wide_tx_active0to7; /* Byte 21 */ + struct blogic_syncval sync8to15[8]; /* Bytes 22-29 */ + unsigned char disconnect_ok8to15; /* Byte 30 */ + unsigned char:8; /* Byte 31 */ + unsigned char wide_tx_ok8to15; /* Byte 32 */ + unsigned char wide_tx_active8to15; /* Byte 33 */ +}; + +/* + Define the Initialize Extended Mailbox request structure. +*/ + +struct blogic_extmbox_req { + unsigned char mbox_count; /* Byte 0 */ + u32 base_mbox_addr; /* Bytes 1-4 */ +} PACKED; + + +/* + Define the Inquire PCI Host Adapter Information reply type. The ISA + Compatible I/O Port values are defined here and are also used with + the Modify I/O Address command. +*/ + +enum blogic_isa_ioport { + BLOGIC_IO_330 = 0, + BLOGIC_IO_334 = 1, + BLOGIC_IO_230 = 2, + BLOGIC_IO_234 = 3, + BLOGIC_IO_130 = 4, + BLOGIC_IO_134 = 5, + BLOGIC_IO_DISABLE = 6, + BLOGIC_IO_DISABLE2 = 7 +} PACKED; + +struct blogic_adapter_info { + enum blogic_isa_ioport isa_port; /* Byte 0 */ + unsigned char irq_ch; /* Byte 1 */ + bool low_term:1; /* Byte 2 Bit 0 */ + bool high_term:1; /* Byte 2 Bit 1 */ + unsigned char:2; /* Byte 2 Bits 2-3 */ + bool JP1:1; /* Byte 2 Bit 4 */ + bool JP2:1; /* Byte 2 Bit 5 */ + bool JP3:1; /* Byte 2 Bit 6 */ + bool genericinfo_valid:1; /* Byte 2 Bit 7 */ + unsigned char:8; /* Byte 3 */ +}; + +/* + Define the Inquire Extended Setup Information reply structure. +*/ + +struct blogic_ext_setup { + unsigned char bus_type; /* Byte 0 */ + unsigned char bios_addr; /* Byte 1 */ + unsigned short sg_limit; /* Bytes 2-3 */ + unsigned char mbox_count; /* Byte 4 */ + u32 base_mbox_addr; /* Bytes 5-8 */ + struct { + unsigned char:2; /* Byte 9 Bits 0-1 */ + bool fast_on_eisa:1; /* Byte 9 Bit 2 */ + unsigned char:3; /* Byte 9 Bits 3-5 */ + bool level_int:1; /* Byte 9 Bit 6 */ + unsigned char:1; /* Byte 9 Bit 7 */ + } misc; + unsigned char fw_rev[3]; /* Bytes 10-12 */ + bool wide:1; /* Byte 13 Bit 0 */ + bool differential:1; /* Byte 13 Bit 1 */ + bool scam:1; /* Byte 13 Bit 2 */ + bool ultra:1; /* Byte 13 Bit 3 */ + bool smart_term:1; /* Byte 13 Bit 4 */ + unsigned char:3; /* Byte 13 Bits 5-7 */ +} PACKED; + +/* + Define the Enable Strict Round Robin Mode request type. +*/ + +enum blogic_rr_req { + BLOGIC_AGGRESSIVE_RR = 0, + BLOGIC_STRICT_RR_MODE = 1 +} PACKED; + + +/* + Define the Fetch Host Adapter Local RAM request type. +*/ + +#define BLOGIC_BIOS_BASE 0 +#define BLOGIC_AUTOSCSI_BASE 64 + +struct blogic_fetch_localram { + unsigned char offset; /* Byte 0 */ + unsigned char count; /* Byte 1 */ +}; + +/* + Define the Host Adapter Local RAM AutoSCSI structure. +*/ + +struct blogic_autoscsi { + unsigned char factory_sig[2]; /* Bytes 0-1 */ + unsigned char info_bytes; /* Byte 2 */ + unsigned char adapter_type[6]; /* Bytes 3-8 */ + unsigned char:8; /* Byte 9 */ + bool floppy:1; /* Byte 10 Bit 0 */ + bool floppy_sec:1; /* Byte 10 Bit 1 */ + bool level_int:1; /* Byte 10 Bit 2 */ + unsigned char:2; /* Byte 10 Bits 3-4 */ + unsigned char systemram_bios:3; /* Byte 10 Bits 5-7 */ + unsigned char dma_ch:7; /* Byte 11 Bits 0-6 */ + bool dma_autoconf:1; /* Byte 11 Bit 7 */ + unsigned char irq_ch:7; /* Byte 12 Bits 0-6 */ + bool irq_autoconf:1; /* Byte 12 Bit 7 */ + unsigned char dma_tx_rate; /* Byte 13 */ + unsigned char scsi_id; /* Byte 14 */ + bool low_term:1; /* Byte 15 Bit 0 */ + bool parity:1; /* Byte 15 Bit 1 */ + bool high_term:1; /* Byte 15 Bit 2 */ + bool noisy_cable:1; /* Byte 15 Bit 3 */ + bool fast_sync_neg:1; /* Byte 15 Bit 4 */ + bool reset_enabled:1; /* Byte 15 Bit 5 */ + bool:1; /* Byte 15 Bit 6 */ + bool active_negation:1; /* Byte 15 Bit 7 */ + unsigned char bus_on_delay; /* Byte 16 */ + unsigned char bus_off_delay; /* Byte 17 */ + bool bios_enabled:1; /* Byte 18 Bit 0 */ + bool int19_redir_enabled:1; /* Byte 18 Bit 1 */ + bool ext_trans_enable:1; /* Byte 18 Bit 2 */ + bool removable_as_fixed:1; /* Byte 18 Bit 3 */ + bool:1; /* Byte 18 Bit 4 */ + bool morethan2_drives:1; /* Byte 18 Bit 5 */ + bool bios_int:1; /* Byte 18 Bit 6 */ + bool floptical:1; /* Byte 19 Bit 7 */ + unsigned short dev_enabled; /* Bytes 19-20 */ + unsigned short wide_ok; /* Bytes 21-22 */ + unsigned short fast_ok; /* Bytes 23-24 */ + unsigned short sync_ok; /* Bytes 25-26 */ + unsigned short discon_ok; /* Bytes 27-28 */ + unsigned short send_start_unit; /* Bytes 29-30 */ + unsigned short ignore_bios_scan; /* Bytes 31-32 */ + unsigned char pci_int_pin:2; /* Byte 33 Bits 0-1 */ + unsigned char adapter_ioport:2; /* Byte 33 Bits 2-3 */ + bool strict_rr_enabled:1; /* Byte 33 Bit 4 */ + bool vesabus_33mhzplus:1; /* Byte 33 Bit 5 */ + bool vesa_burst_write:1; /* Byte 33 Bit 6 */ + bool vesa_burst_read:1; /* Byte 33 Bit 7 */ + unsigned short ultra_ok; /* Bytes 34-35 */ + unsigned int:32; /* Bytes 36-39 */ + unsigned char:8; /* Byte 40 */ + unsigned char autoscsi_maxlun; /* Byte 41 */ + bool:1; /* Byte 42 Bit 0 */ + bool scam_dominant:1; /* Byte 42 Bit 1 */ + bool scam_enabled:1; /* Byte 42 Bit 2 */ + bool scam_lev2:1; /* Byte 42 Bit 3 */ + unsigned char:4; /* Byte 42 Bits 4-7 */ + bool int13_exten:1; /* Byte 43 Bit 0 */ + bool:1; /* Byte 43 Bit 1 */ + bool cd_boot:1; /* Byte 43 Bit 2 */ + unsigned char:5; /* Byte 43 Bits 3-7 */ + unsigned char boot_id:4; /* Byte 44 Bits 0-3 */ + unsigned char boot_ch:4; /* Byte 44 Bits 4-7 */ + unsigned char force_scan_order:1; /* Byte 45 Bit 0 */ + unsigned char:7; /* Byte 45 Bits 1-7 */ + unsigned short nontagged_to_alt_ok; /* Bytes 46-47 */ + unsigned short reneg_sync_on_check; /* Bytes 48-49 */ + unsigned char rsvd[10]; /* Bytes 50-59 */ + unsigned char manuf_diag[2]; /* Bytes 60-61 */ + unsigned short cksum; /* Bytes 62-63 */ +} PACKED; + +/* + Define the Host Adapter Local RAM Auto SCSI Byte 45 structure. +*/ + +struct blogic_autoscsi_byte45 { + unsigned char force_scan_order:1; /* Bit 0 */ + unsigned char:7; /* Bits 1-7 */ +}; + +/* + Define the Host Adapter Local RAM BIOS Drive Map Byte structure. +*/ + +#define BLOGIC_BIOS_DRVMAP 17 + +struct blogic_bios_drvmap { + unsigned char tgt_idbit3:1; /* Bit 0 */ + unsigned char:2; /* Bits 1-2 */ + enum blogic_bios_diskgeometry diskgeom:2; /* Bits 3-4 */ + unsigned char tgt_id:3; /* Bits 5-7 */ +}; + +/* + Define the Set CCB Format request type. Extended LUN Format CCBs are + necessary to support more than 8 Logical Units per Target Device. +*/ + +enum blogic_setccb_fmt { + BLOGIC_LEGACY_LUN_CCB = 0, + BLOGIC_EXT_LUN_CCB = 1 +} PACKED; + +/* + Define the Outgoing Mailbox Action Codes. +*/ + +enum blogic_action { + BLOGIC_OUTBOX_FREE = 0x00, + BLOGIC_MBOX_START = 0x01, + BLOGIC_MBOX_ABORT = 0x02 +} PACKED; + + +/* + Define the Incoming Mailbox Completion Codes. The MultiMaster Firmware + only uses codes 0 - 4. The FlashPoint SCCB Manager has no mailboxes, so + completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5. +*/ + +enum blogic_cmplt_code { + BLOGIC_INBOX_FREE = 0x00, + BLOGIC_CMD_COMPLETE_GOOD = 0x01, + BLOGIC_CMD_ABORT_BY_HOST = 0x02, + BLOGIC_CMD_NOTFOUND = 0x03, + BLOGIC_CMD_COMPLETE_ERROR = 0x04, + BLOGIC_INVALID_CCB = 0x05 +} PACKED; + +/* + Define the Command Control Block (CCB) Opcodes. +*/ + +enum blogic_ccb_opcode { + BLOGIC_INITIATOR_CCB = 0x00, + BLOGIC_TGT_CCB = 0x01, + BLOGIC_INITIATOR_CCB_SG = 0x02, + BLOGIC_INITIATOR_CCBB_RESIDUAL = 0x03, + BLOGIC_INITIATOR_CCB_SG_RESIDUAL = 0x04, + BLOGIC_BDR = 0x81 +} PACKED; + + +/* + Define the CCB Data Direction Codes. +*/ + +enum blogic_datadir { + BLOGIC_UNCHECKED_TX = 0, + BLOGIC_DATAIN_CHECKED = 1, + BLOGIC_DATAOUT_CHECKED = 2, + BLOGIC_NOTX = 3 +}; + + +/* + Define the Host Adapter Status Codes. The MultiMaster Firmware does not + return status code 0x0C; it uses 0x12 for both overruns and underruns. +*/ + +enum blogic_adapter_status { + BLOGIC_CMD_CMPLT_NORMAL = 0x00, + BLOGIC_LINK_CMD_CMPLT = 0x0A, + BLOGIC_LINK_CMD_CMPLT_FLAG = 0x0B, + BLOGIC_DATA_UNDERRUN = 0x0C, + BLOGIC_SELECT_TIMEOUT = 0x11, + BLOGIC_DATA_OVERRUN = 0x12, + BLOGIC_NOEXPECT_BUSFREE = 0x13, + BLOGIC_INVALID_BUSPHASE = 0x14, + BLOGIC_INVALID_OUTBOX_CODE = 0x15, + BLOGIC_INVALID_CMD_CODE = 0x16, + BLOGIC_LINKCCB_BADLUN = 0x17, + BLOGIC_BAD_CMD_PARAM = 0x1A, + BLOGIC_AUTOREQSENSE_FAIL = 0x1B, + BLOGIC_TAGQUEUE_REJECT = 0x1C, + BLOGIC_BAD_MSG_RCVD = 0x1D, + BLOGIC_HW_FAIL = 0x20, + BLOGIC_NORESPONSE_TO_ATN = 0x21, + BLOGIC_HW_RESET = 0x22, + BLOGIC_RST_FROM_OTHERDEV = 0x23, + BLOGIC_BAD_RECONNECT = 0x24, + BLOGIC_HW_BDR = 0x25, + BLOGIC_ABRT_QUEUE = 0x26, + BLOGIC_ADAPTER_SW_ERROR = 0x27, + BLOGIC_HW_TIMEOUT = 0x30, + BLOGIC_PARITY_ERR = 0x34 +} PACKED; + + +/* + Define the SCSI Target Device Status Codes. +*/ + +enum blogic_tgt_status { + BLOGIC_OP_GOOD = 0x00, + BLOGIC_CHECKCONDITION = 0x02, + BLOGIC_DEVBUSY = 0x08 +} PACKED; + +/* + Define the Queue Tag Codes. +*/ + +enum blogic_queuetag { + BLOGIC_SIMPLETAG = 0, + BLOGIC_HEADTAG = 1, + BLOGIC_ORDEREDTAG = 2, + BLOGIC_RSVDTAG = 3 +}; + +/* + Define the SCSI Command Descriptor Block (CDB). +*/ + +#define BLOGIC_CDB_MAXLEN 12 + + +/* + Define the Scatter/Gather Segment structure required by the MultiMaster + Firmware Interface and the FlashPoint SCCB Manager. +*/ + +struct blogic_sg_seg { + u32 segbytes; /* Bytes 0-3 */ + u32 segdata; /* Bytes 4-7 */ +}; + +/* + Define the Driver CCB Status Codes. +*/ + +enum blogic_ccb_status { + BLOGIC_CCB_FREE = 0, + BLOGIC_CCB_ACTIVE = 1, + BLOGIC_CCB_COMPLETE = 2, + BLOGIC_CCB_RESET = 3 +} PACKED; + + +/* + Define the 32 Bit Mode Command Control Block (CCB) structure. The first 40 + bytes are defined by and common to both the MultiMaster Firmware and the + FlashPoint SCCB Manager. The next 60 bytes are defined by the FlashPoint + SCCB Manager. The remaining components are defined by the Linux BusLogic + Driver. Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode + CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to + byte 1, and the Logical Unit field in byte 17 expanded to 6 bits. In theory, + Extended LUN Format CCBs can support up to 64 Logical Units, but in practice + many devices will respond improperly to Logical Units between 32 and 63, and + the SCSI-2 specification defines Bit 5 as LUNTAR. Extended LUN Format CCBs + are used by recent versions of the MultiMaster Firmware, as well as by the + FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical + Units. Since 64 Logical Units are unlikely to be needed in practice, and + since they are problematic for the above reasons, and since limiting them to + 5 bits simplifies the CCB structure definition, this driver only supports + 32 Logical Units per Target Device. +*/ + +struct blogic_ccb { + /* + MultiMaster Firmware and FlashPoint SCCB Manager Common Portion. + */ + enum blogic_ccb_opcode opcode; /* Byte 0 */ + unsigned char:3; /* Byte 1 Bits 0-2 */ + enum blogic_datadir datadir:2; /* Byte 1 Bits 3-4 */ + bool tag_enable:1; /* Byte 1 Bit 5 */ + enum blogic_queuetag queuetag:2; /* Byte 1 Bits 6-7 */ + unsigned char cdblen; /* Byte 2 */ + unsigned char sense_datalen; /* Byte 3 */ + u32 datalen; /* Bytes 4-7 */ + u32 data; /* Bytes 8-11 */ + unsigned char:8; /* Byte 12 */ + unsigned char:8; /* Byte 13 */ + enum blogic_adapter_status adapter_status; /* Byte 14 */ + enum blogic_tgt_status tgt_status; /* Byte 15 */ + unsigned char tgt_id; /* Byte 16 */ + unsigned char lun:5; /* Byte 17 Bits 0-4 */ + bool legacytag_enable:1; /* Byte 17 Bit 5 */ + enum blogic_queuetag legacy_tag:2; /* Byte 17 Bits 6-7 */ + unsigned char cdb[BLOGIC_CDB_MAXLEN]; /* Bytes 18-29 */ + unsigned char:8; /* Byte 30 */ + unsigned char:8; /* Byte 31 */ + u32 rsvd_int; /* Bytes 32-35 */ + u32 sensedata; /* Bytes 36-39 */ + /* + FlashPoint SCCB Manager Defined Portion. + */ + void (*callback) (struct blogic_ccb *); /* Bytes 40-43 */ + u32 base_addr; /* Bytes 44-47 */ + enum blogic_cmplt_code comp_code; /* Byte 48 */ +#ifdef CONFIG_SCSI_FLASHPOINT + unsigned char:8; /* Byte 49 */ + u16 os_flags; /* Bytes 50-51 */ + unsigned char private[24]; /* Bytes 52-99 */ + void *rsvd1; + void *rsvd2; + unsigned char private2[16]; +#endif + /* + BusLogic Linux Driver Defined Portion. + */ + dma_addr_t allocgrp_head; + unsigned int allocgrp_size; + u32 dma_handle; + enum blogic_ccb_status status; + unsigned long serial; + struct scsi_cmnd *command; + struct blogic_adapter *adapter; + struct blogic_ccb *next; + struct blogic_ccb *next_all; + struct blogic_sg_seg sglist[BLOGIC_SG_LIMIT]; +}; + +/* + Define the 32 Bit Mode Outgoing Mailbox structure. +*/ + +struct blogic_outbox { + u32 ccb; /* Bytes 0-3 */ + u32:24; /* Bytes 4-6 */ + enum blogic_action action; /* Byte 7 */ +}; + +/* + Define the 32 Bit Mode Incoming Mailbox structure. +*/ + +struct blogic_inbox { + u32 ccb; /* Bytes 0-3 */ + enum blogic_adapter_status adapter_status; /* Byte 4 */ + enum blogic_tgt_status tgt_status; /* Byte 5 */ + unsigned char:8; /* Byte 6 */ + enum blogic_cmplt_code comp_code; /* Byte 7 */ +}; + + +/* + Define the BusLogic Driver Options structure. +*/ + +struct blogic_drvr_options { + unsigned short tagq_ok; + unsigned short tagq_ok_mask; + unsigned short bus_settle_time; + unsigned short stop_tgt_inquiry; + unsigned char common_qdepth; + unsigned char qdepth[BLOGIC_MAXDEV]; +}; + +/* + Define the Host Adapter Target Flags structure. +*/ + +struct blogic_tgt_flags { + bool tgt_exists:1; + bool tagq_ok:1; + bool wide_ok:1; + bool tagq_active:1; + bool wide_active:1; + bool cmd_good:1; + bool tgt_info_in:1; +}; + +/* + Define the Host Adapter Target Statistics structure. +*/ + +#define BLOGIC_SZ_BUCKETS 10 + +struct blogic_tgt_stats { + unsigned int cmds_tried; + unsigned int cmds_complete; + unsigned int read_cmds; + unsigned int write_cmds; + struct blogic_byte_count bytesread; + struct blogic_byte_count byteswritten; + unsigned int read_sz_buckets[BLOGIC_SZ_BUCKETS]; + unsigned int write_sz_buckets[BLOGIC_SZ_BUCKETS]; + unsigned short aborts_request; + unsigned short aborts_tried; + unsigned short aborts_done; + unsigned short bdr_request; + unsigned short bdr_tried; + unsigned short bdr_done; + unsigned short adapter_reset_req; + unsigned short adapter_reset_attempt; + unsigned short adapter_reset_done; +}; + +/* + Define the FlashPoint Card Handle data type. +*/ + +#define FPOINT_BADCARD_HANDLE 0xFFFFFFFFL + + +/* + Define the FlashPoint Information structure. This structure is defined + by the FlashPoint SCCB Manager. +*/ + +struct fpoint_info { + u32 base_addr; /* Bytes 0-3 */ + bool present; /* Byte 4 */ + unsigned char irq_ch; /* Byte 5 */ + unsigned char scsi_id; /* Byte 6 */ + unsigned char scsi_lun; /* Byte 7 */ + u16 fw_rev; /* Bytes 8-9 */ + u16 sync_ok; /* Bytes 10-11 */ + u16 fast_ok; /* Bytes 12-13 */ + u16 ultra_ok; /* Bytes 14-15 */ + u16 discon_ok; /* Bytes 16-17 */ + u16 wide_ok; /* Bytes 18-19 */ + bool parity:1; /* Byte 20 Bit 0 */ + bool wide:1; /* Byte 20 Bit 1 */ + bool softreset:1; /* Byte 20 Bit 2 */ + bool ext_trans_enable:1; /* Byte 20 Bit 3 */ + bool low_term:1; /* Byte 20 Bit 4 */ + bool high_term:1; /* Byte 20 Bit 5 */ + bool report_underrun:1; /* Byte 20 Bit 6 */ + bool scam_enabled:1; /* Byte 20 Bit 7 */ + bool scam_lev2:1; /* Byte 21 Bit 0 */ + unsigned char:7; /* Byte 21 Bits 1-7 */ + unsigned char family; /* Byte 22 */ + unsigned char bus_type; /* Byte 23 */ + unsigned char model[3]; /* Bytes 24-26 */ + unsigned char relative_cardnum; /* Byte 27 */ + unsigned char rsvd[4]; /* Bytes 28-31 */ + u32 os_rsvd; /* Bytes 32-35 */ + unsigned char translation_info[4]; /* Bytes 36-39 */ + u32 rsvd2[5]; /* Bytes 40-59 */ + u32 sec_range; /* Bytes 60-63 */ +}; + +/* + Define the BusLogic Driver Host Adapter structure. +*/ + +struct blogic_adapter { + struct Scsi_Host *scsi_host; + struct pci_dev *pci_device; + enum blogic_adapter_type adapter_type; + enum blogic_adapter_bus_type adapter_bus_type; + unsigned long io_addr; + unsigned long pci_addr; + unsigned short addr_count; + unsigned char host_no; + unsigned char model[9]; + unsigned char fw_ver[6]; + unsigned char full_model[18]; + unsigned char bus; + unsigned char dev; + unsigned char irq_ch; + unsigned char scsi_id; + bool irq_acquired:1; + bool ext_trans_enable:1; + bool parity:1; + bool reset_enabled:1; + bool level_int:1; + bool wide:1; + bool differential:1; + bool scam:1; + bool ultra:1; + bool ext_lun:1; + bool terminfo_valid:1; + bool low_term:1; + bool high_term:1; + bool strict_rr:1; + bool scam_enabled:1; + bool scam_lev2:1; + bool adapter_initd:1; + bool adapter_extreset:1; + bool adapter_intern_err:1; + bool processing_ccbs; + volatile bool adapter_cmd_complete; + unsigned short adapter_sglimit; + unsigned short drvr_sglimit; + unsigned short maxdev; + unsigned short maxlun; + unsigned short mbox_count; + unsigned short initccbs; + unsigned short inc_ccbs; + unsigned short alloc_ccbs; + unsigned short drvr_qdepth; + unsigned short adapter_qdepth; + unsigned short untag_qdepth; + unsigned short common_qdepth; + unsigned short bus_settle_time; + unsigned short sync_ok; + unsigned short fast_ok; + unsigned short ultra_ok; + unsigned short wide_ok; + unsigned short discon_ok; + unsigned short tagq_ok; + unsigned short ext_resets; + unsigned short adapter_intern_errors; + unsigned short tgt_count; + unsigned short msgbuflen; + u32 bios_addr; + struct blogic_drvr_options *drvr_opts; + struct fpoint_info fpinfo; + void *cardhandle; + struct list_head host_list; + struct blogic_ccb *all_ccbs; + struct blogic_ccb *free_ccbs; + struct blogic_ccb *firstccb; + struct blogic_ccb *lastccb; + struct blogic_ccb *bdr_pend[BLOGIC_MAXDEV]; + struct blogic_tgt_flags tgt_flags[BLOGIC_MAXDEV]; + unsigned char qdepth[BLOGIC_MAXDEV]; + unsigned char sync_period[BLOGIC_MAXDEV]; + unsigned char sync_offset[BLOGIC_MAXDEV]; + unsigned char active_cmds[BLOGIC_MAXDEV]; + unsigned int cmds_since_rst[BLOGIC_MAXDEV]; + unsigned long last_seqpoint[BLOGIC_MAXDEV]; + unsigned long last_resettried[BLOGIC_MAXDEV]; + unsigned long last_resetdone[BLOGIC_MAXDEV]; + struct blogic_outbox *first_outbox; + struct blogic_outbox *last_outbox; + struct blogic_outbox *next_outbox; + struct blogic_inbox *first_inbox; + struct blogic_inbox *last_inbox; + struct blogic_inbox *next_inbox; + struct blogic_tgt_stats tgt_stats[BLOGIC_MAXDEV]; + unsigned char *mbox_space; + dma_addr_t mbox_space_handle; + unsigned int mbox_sz; + unsigned long ccb_offset; + char msgbuf[BLOGIC_MSGBUF_SIZE]; +}; + +/* + Define a structure for the BIOS Disk Parameters. +*/ + +struct bios_diskparam { + int heads; + int sectors; + int cylinders; +}; + +/* + Define a structure for the SCSI Inquiry command results. +*/ + +struct scsi_inquiry { + unsigned char devtype:5; /* Byte 0 Bits 0-4 */ + unsigned char dev_qual:3; /* Byte 0 Bits 5-7 */ + unsigned char dev_modifier:7; /* Byte 1 Bits 0-6 */ + bool rmb:1; /* Byte 1 Bit 7 */ + unsigned char ansi_ver:3; /* Byte 2 Bits 0-2 */ + unsigned char ecma_ver:3; /* Byte 2 Bits 3-5 */ + unsigned char iso_ver:2; /* Byte 2 Bits 6-7 */ + unsigned char resp_fmt:4; /* Byte 3 Bits 0-3 */ + unsigned char:2; /* Byte 3 Bits 4-5 */ + bool TrmIOP:1; /* Byte 3 Bit 6 */ + bool AENC:1; /* Byte 3 Bit 7 */ + unsigned char addl_len; /* Byte 4 */ + unsigned char:8; /* Byte 5 */ + unsigned char:8; /* Byte 6 */ + bool SftRe:1; /* Byte 7 Bit 0 */ + bool CmdQue:1; /* Byte 7 Bit 1 */ + bool:1; /* Byte 7 Bit 2 */ + bool linked:1; /* Byte 7 Bit 3 */ + bool sync:1; /* Byte 7 Bit 4 */ + bool WBus16:1; /* Byte 7 Bit 5 */ + bool WBus32:1; /* Byte 7 Bit 6 */ + bool RelAdr:1; /* Byte 7 Bit 7 */ + unsigned char vendor[8]; /* Bytes 8-15 */ + unsigned char product[16]; /* Bytes 16-31 */ + unsigned char product_rev[4]; /* Bytes 32-35 */ +}; + + +/* + Define functions to provide an abstraction for reading and writing the + Host Adapter I/O Registers. +*/ + +static inline void blogic_busreset(struct blogic_adapter *adapter) +{ + union blogic_cntrl_reg cr; + cr.all = 0; + cr.cr.bus_reset = true; + outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG); +} + +static inline void blogic_intreset(struct blogic_adapter *adapter) +{ + union blogic_cntrl_reg cr; + cr.all = 0; + cr.cr.int_reset = true; + outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG); +} + +static inline void blogic_softreset(struct blogic_adapter *adapter) +{ + union blogic_cntrl_reg cr; + cr.all = 0; + cr.cr.soft_reset = true; + outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG); +} + +static inline void blogic_hardreset(struct blogic_adapter *adapter) +{ + union blogic_cntrl_reg cr; + cr.all = 0; + cr.cr.hard_reset = true; + outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG); +} + +static inline unsigned char blogic_rdstatus(struct blogic_adapter *adapter) +{ + return inb(adapter->io_addr + BLOGIC_STATUS_REG); +} + +static inline void blogic_setcmdparam(struct blogic_adapter *adapter, + unsigned char value) +{ + outb(value, adapter->io_addr + BLOGIC_CMD_PARM_REG); +} + +static inline unsigned char blogic_rddatain(struct blogic_adapter *adapter) +{ + return inb(adapter->io_addr + BLOGIC_DATAIN_REG); +} + +static inline unsigned char blogic_rdint(struct blogic_adapter *adapter) +{ + return inb(adapter->io_addr + BLOGIC_INT_REG); +} + +static inline unsigned char blogic_rdgeom(struct blogic_adapter *adapter) +{ + return inb(adapter->io_addr + BLOGIC_GEOMETRY_REG); +} + +/* + blogic_execmbox issues an Execute Mailbox Command, which + notifies the Host Adapter that an entry has been made in an Outgoing + Mailbox. +*/ + +static inline void blogic_execmbox(struct blogic_adapter *adapter) +{ + blogic_setcmdparam(adapter, BLOGIC_EXEC_MBOX_CMD); +} + +/* + blogic_delay waits for Seconds to elapse. +*/ + +static inline void blogic_delay(int seconds) +{ + mdelay(1000 * seconds); +} + +/* + virt_to_32bit_virt maps between Kernel Virtual Addresses and + 32 bit Kernel Virtual Addresses. This avoids compilation warnings + on 64 bit architectures. +*/ + +static inline u32 virt_to_32bit_virt(void *virt_addr) +{ + return (u32) (unsigned long) virt_addr; +} + +/* + blogic_inc_count increments counter by 1, stopping at + 65535 rather than wrapping around to 0. +*/ + +static inline void blogic_inc_count(unsigned short *count) +{ + if (*count < 65535) + (*count)++; +} + +/* + blogic_addcount increments Byte Counter by Amount. +*/ + +static inline void blogic_addcount(struct blogic_byte_count *bytecount, + unsigned int amount) +{ + bytecount->units += amount; + if (bytecount->units > 999999999) { + bytecount->units -= 1000000000; + bytecount->billions++; + } +} + +/* + blogic_incszbucket increments the Bucket for Amount. +*/ + +static inline void blogic_incszbucket(unsigned int *cmdsz_buckets, + unsigned int amount) +{ + int index = 0; + if (amount < 8 * 1024) { + if (amount < 2 * 1024) + index = (amount < 1 * 1024 ? 0 : 1); + else + index = (amount < 4 * 1024 ? 2 : 3); + } else if (amount < 128 * 1024) { + if (amount < 32 * 1024) + index = (amount < 16 * 1024 ? 4 : 5); + else + index = (amount < 64 * 1024 ? 6 : 7); + } else + index = (amount < 256 * 1024 ? 8 : 9); + cmdsz_buckets[index]++; +} + +/* + Define the version number of the FlashPoint Firmware (SCCB Manager). +*/ + +#define FLASHPOINT_FW_VER "5.02" + +/* + Define the possible return values from FlashPoint_HandleInterrupt. +*/ + +#define FPOINT_NORMAL_INT 0x00 +#define FPOINT_INTERN_ERR 0xFE +#define FPOINT_EXT_RESET 0xFF + +/* + Define prototypes for the forward referenced BusLogic Driver + Internal Functions. +*/ + +static const char *blogic_drvr_info(struct Scsi_Host *); +static int blogic_qcmd(struct Scsi_Host *h, struct scsi_cmnd *); +static int blogic_diskparam(struct scsi_device *, struct block_device *, sector_t, int *); +static int blogic_slaveconfig(struct scsi_device *); +static void blogic_qcompleted_ccb(struct blogic_ccb *); +static irqreturn_t blogic_inthandler(int, void *); +static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset); +static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...); +static int __init blogic_setup(char *); + +#endif /* _BUSLOGIC_H */ |