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freebsd-skq/sys/dev/dpt/dpt.h
pfg eed4bd22ad sys/dev: minor spelling fixes. 
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00

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/*-
* Copyright (c) 1997 by Simon Shapiro
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
*
* dpt.h: Definitions and constants used by the SCSI side of the DPT
*
* credits: Mike Neuffer; DPT low level code and in other areas as well.
* Mark Salyzyn; Many vital bits of info and diagnostics.
* Justin Gibbs; FreeBSD API, debugging and style
* Ron McDaniels; SCSI Software Interrupts
* FreeBSD.ORG; Great O/S to work on and for.
*/
#ifndef _DPT_H
#define _DPT_H
#include <sys/ioccom.h>
#undef DPT_USE_DLM_SWI
#define DPT_RELEASE 1
#define DPT_VERSION 4
#define DPT_PATCH 5
#define DPT_MONTH 8
#define DPT_DAY 3
#define DPT_YEAR 18 /* 1998 - 1980 */
#define DPT_CTL_RELEASE 1
#define DPT_CTL_VERSION 0
#define DPT_CTL_PATCH 6
#ifndef PAGESIZ
#define PAGESIZ 4096
#endif
#ifndef physaddr
typedef void *physaddr;
#endif
#undef DPT_INQUIRE_DEVICES /* We have no buyers for this function */
#define DPT_SUPPORT_POLLING /* Use polled mode at boot (must be ON!) */
#define DPT_OPENNINGS 8 /* Commands-in-progress per device */
#define DPT_RETRIES 5 /* Times to retry failed commands */
#undef DPT_DISABLE_SG
#define DPT_HAS_OPEN
/* Arguments to dpt_run_queue() can be: */
#define DPT_MAX_TARGET_MODE_BUFFER_SIZE 8192
#define DPT_FREE_LIST_INCREMENT 64
#define DPT_CMD_LEN 12
/*
* How many segments do we want in a Scatter/Gather list?
* Some HBA's can do 16, Some 8192. Since we pre-allocate
* them in fixed increments, we need to put a practical limit on
* these. A passed parameter (from kernel boot or lkm) would help
*/
#define DPT_MAX_SEGS 32
/* Debug levels */
#undef DPT_DEBUG_PCI
#undef DPT_DEBUG_INIT
#undef DPT_DEBUG_SETUP
#undef DPT_DEBUG_STATES
#undef DPT_DEBUG_CONFIG
#undef DPT_DEBUG_QUEUES
#undef DPT_DEBUG_SCSI_CMD
#undef DPT_DEBUG_SOFTINTR
#undef DPT_DEBUG_HARDINTR
#undef DPT_DEBUG_HEX_DUMPS
#undef DPT_DEBUG_POLLING
#undef DPT_DEBUG_INQUIRE
#undef DPT_DEBUG_COMPLETION
#undef DPT_DEBUG_COMPLETION_ERRORS
#define DPT_DEBUG_MINPHYS
#undef DPT_DEBUG_SG
#undef DPT_DEBUG_SG_SHOW_DATA
#undef DPT_DEBUG_SCSI_CMD_NAME
#undef DPT_DEBUG_CONTROL
#undef DPT_DEBUG_TIMEOUTS
#undef DPT_DEBUG_SHUTDOWN
#define DPT_DEBUG_USER_CMD
/*
* Misc. definitions
*/
#undef TRUE
#undef FALSE
#define TRUE 1
#define FALSE 0
#define MAX_CHANNELS 3
#define MAX_TARGETS 16
#define MAX_LUNS 8
/* Map minor numbers to device identity */
#define TARGET_MASK 0x000f
#define BUS_MASK 0x0030
#define HBA_MASK 0x01c0
#define LUN_MASK 0x0e00
#define minor2target(minor) ( minor & TARGET_MASK )
#define minor2bus(minor) ( (minor & BUS_MASK) >> 4 )
#define minor2hba(minor) ( (minor & HBA_MASK) >> 6 )
#define minor2lun(minor) ( (minor & LUN_MASK) >> 9 )
/*
* Valid values for cache_type
*/
#define DPT_NO_CACHE 0
#define DPT_CACHE_WRITETHROUGH 1
#define DPT_CACHE_WRITEBACK 2
#define min(a,b) ((a<b)?(a):(b))
#define MAXISA 4
#define MAXEISA 16
#define MAXPCI 16
#define MAXIRQ 16
#define MAXTARGET 16
#define IS_ISA 'I'
#define IS_EISA 'E'
#define IS_PCI 'P'
#define BROKEN_INQUIRY 1
#define BUSMASTER 0xff
#define PIO 0xfe
#define EATA_SIGNATURE 0x41544145 /* little ENDIAN "EATA" */
#define DPT_BLINK_INDICATOR 0x42445054
#define DPT_ID1 0x12
#define DPT_ID2 0x1
#define ATT_ID1 0x06
#define ATT_ID2 0x94
#define ATT_ID3 0x0
#define NEC_ID1 0x38
#define NEC_ID2 0xa3
#define NEC_ID3 0x82
#define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */
#define MAX_METHOD_2 16 /* Max Devices For Method 2 */
#define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */
#define DPT_MAX_RETRIES 2
#define READ 0
#define WRITE 1
#define OTHER 2
#define HD(cmd) ((hostdata *)&(cmd->host->hostdata))
#define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble))
#define SD(host) ((hostdata *)&(host->hostdata))
/*
* EATA Command & Register definitions
*/
#define PCI_REG_DPTconfig 0x40
#define PCI_REG_PumpModeAddress 0x44
#define PCI_REG_PumpModeData 0x48
#define PCI_REG_ConfigParam1 0x50
#define PCI_REG_ConfigParam2 0x54
#define EATA_CMD_PIO_SETUPTEST 0xc6
#define EATA_CMD_PIO_READ_CONFIG 0xf0
#define EATA_CMD_PIO_SET_CONFIG 0xf1
#define EATA_CMD_PIO_SEND_CP 0xf2
#define EATA_CMD_PIO_RECEIVE_SP 0xf3
#define EATA_CMD_PIO_TRUNC 0xf4
#define EATA_CMD_RESET 0xf9
#define EATA_COLD_BOOT 0x06 /* Last resort only! */
#define EATA_CMD_IMMEDIATE 0xfa
#define EATA_CMD_DMA_READ_CONFIG 0xfd
#define EATA_CMD_DMA_SET_CONFIG 0xfe
#define EATA_CMD_DMA_SEND_CP 0xff
#define ECS_EMULATE_SENSE 0xd4
/*
* Immediate Commands
* Beware of this enumeration. Not all commands are in sequence!
*/
enum dpt_immediate_cmd {
EATA_GENERIC_ABORT,
EATA_SPECIFIC_RESET,
EATA_BUS_RESET,
EATA_SPECIFIC_ABORT,
EATA_QUIET_INTR,
EATA_SMART_ROM_DL_EN,
EATA_COLD_BOOT_HBA, /* Only as a last resort */
EATA_FORCE_IO,
EATA_SCSI_BUS_OFFLINE,
EATA_RESET_MASKED_BUS,
EATA_POWER_OFF_WARN
};
#define HA_CTRLREG 0x206 /* control register for HBA */
#define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */
#define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processo */
#define HA_CTRL_8HEADS 0x08 /*
* CTRLREG: set for drives with
* >=8 heads
* (WD1003 rudimentary :-)
*/
#define HA_WCOMMAND 0x07 /* command register offset */
#define HA_WIFC 0x06 /* immediate command offset */
#define HA_WCODE 0x05
#define HA_WCODE2 0x04
#define HA_WDMAADDR 0x02 /* DMA address LSB offset */
#define HA_RERROR 0x01 /* Error Register, offset 1 from base */
#define HA_RAUXSTAT 0x08 /* aux status register offset */
#define HA_RSTATUS 0x07 /* status register offset */
#define HA_RDATA 0x00 /* data register (16bit) */
#define HA_WDATA 0x00 /* data register (16bit) */
#define HA_ABUSY 0x01 /* aux busy bit */
#define HA_AIRQ 0x02 /* aux IRQ pending bit */
#define HA_SERROR 0x01 /* pr. command ended in error */
#define HA_SMORE 0x02 /* more data soon to come */
#define HA_SCORR 0x04 /* datio_addra corrected */
#define HA_SDRQ 0x08 /* data request active */
#define HA_SSC 0x10 /* seek complete */
#define HA_SFAULT 0x20 /* write fault */
#define HA_SREADY 0x40 /* drive ready */
#define HA_SBUSY 0x80 /* drive busy */
#define HA_SDRDY (HA_SSC|HA_SREADY|HA_SDRQ)
/*
* Message definitions
*/
enum dpt_message {
HA_NO_ERROR, /* No Error */
HA_ERR_SEL_TO, /* Selection Timeout */
HA_ERR_CMD_TO, /* Command Timeout */
HA_SCSIBUS_RESET,
HA_HBA_POWER_UP, /* Initial Controller Power-up */
HA_UNX_BUSPHASE, /* Unexpected Bus Phase */
HA_UNX_BUS_FREE, /* Unexpected Bus Free */
HA_BUS_PARITY, /* Bus Parity Error */
HA_SCSI_HUNG, /* SCSI Hung */
HA_UNX_MSGRJCT, /* Unexpected Message Rejected */
HA_RESET_STUCK, /* SCSI Bus Reset Stuck */
HA_RSENSE_FAIL, /* Auto Request-Sense Failed */
HA_PARITY_ERR, /* Controller Ram Parity Error */
HA_CP_ABORT_NA, /* Abort Message sent to non-active cmd */
HA_CP_ABORTED, /* Abort Message sent to active cmd */
HA_CP_RESET_NA, /* Reset Message sent to non-active cmd */
HA_CP_RESET, /* Reset Message sent to active cmd */
HA_ECC_ERR, /* Controller Ram ECC Error */
HA_PCI_PARITY, /* PCI Parity Error */
HA_PCI_MABORT, /* PCI Master Abort */
HA_PCI_TABORT, /* PCI Target Abort */
HA_PCI_STABORT /* PCI Signaled Target Abort */
};
#define HA_STATUS_MASK 0x7F
#define HA_IDENTIFY_MSG 0x80
#define HA_DISCO_RECO 0x40 /* Disconnect/Reconnect */
#define DPT_RW_BUFF_HEART 0X00
#define DPT_RW_BUFF_DLM 0x02
#define DPT_RW_BUFF_ACCESS 0x03
#define HA_INTR_OFF 1
#define HA_INTR_ON 0
/* This is really a one-time shot through some black magic */
#define DPT_EATA_REVA 0x1c
#define DPT_EATA_REVB 0x1e
#define DPT_EATA_REVC 0x22
#define DPT_EATA_REVZ 0x24
/* IOCTL List */
#define DPT_RW_CMD_LEN 32
#define DPT_RW_CMD_DUMP_SOFTC "dump softc"
#define DPT_RW_CMD_DUMP_SYSINFO "dump sysinfo"
#define DPT_RW_CMD_DUMP_METRICS "dump metrics"
#define DPT_RW_CMD_CLEAR_METRICS "clear metrics"
#define DPT_RW_CMD_SHOW_LED "show LED"
#define DPT_IOCTL_INTERNAL_METRICS _IOR('D', 1, dpt_perf_t)
#define DPT_IOCTL_SOFTC _IOR('D', 2, dpt_user_softc_t)
#define DPT_IOCTL_SEND _IOWR('D', 3, eata_pt_t)
#define SDI_SEND 0x40044444 /* Observed from dptmgr */
/*
* Other definitions
*/
#define DPT_HCP_LENGTH(page) (ntohs(*(int16_t *)(void *)(&page[2]))+4)
#define DPT_HCP_FIRST(page) (&page[4])
#define DPT_HCP_NEXT(param) (&param[3 + param[3] + 1])
#define DPT_HCP_CODE(param) (ntohs(*(int16_t *)(void *)param))
/* Possible return values from dpt_register_buffer() */
#define SCSI_TM_READ_BUFFER 0x3c
#define SCSI_TM_WRITE_BUFFER 0x3b
#define SCSI_TM_MODE_MASK 0x07 /* Strip off reserved and LUN */
#define SCSI_TM_LUN_MASK 0xe0 /* Strip off reserved and LUN */
typedef enum {
SUCCESSFULLY_REGISTERED,
DRIVER_DOWN,
ALREADY_REGISTERED,
REGISTERED_TO_ANOTHER,
NOT_REGISTERED,
INVALID_UNIT,
INVALID_SENDER,
INVALID_CALLBACK,
NO_RESOURCES
} dpt_rb_t;
typedef enum {
REGISTER_BUFFER,
RELEASE_BUFFER
} dpt_rb_op_t;
/*
* New way for completion routines to reliably copmplete processing.
* Should take properly typed dpt_softc_t and dpt_ccb_t,
* but interdependencies preclude that.
*/
typedef void (*ccb_callback)(void *dpt, int bus, void *ccb);
typedef void (*buff_wr_done)(int unit, u_int8_t channel, u_int8_t target,
u_int8_t lun, u_int16_t offset, u_int16_t length,
int result);
typedef void (*dpt_rec_buff)(int unit, u_int8_t channel, u_int8_t target,
u_int8_t lun, void *buffer, u_int16_t offset,
u_int16_t length);
/* HBA's Status port (register) bitmap */
typedef struct reg_bit { /* reading this one will clear the interrupt */
u_int8_t error :1, /* previous command ended in an error */
more :1, /* More DATA coming soon Poll BSY & DRQ (PIO) */
corr :1, /* data read was successfully corrected with ECC */
drq :1, /* data request active */
sc :1, /* seek complete */
fault :1, /* write fault */
ready :1, /* drive ready */
busy :1; /* controller busy */
} dpt_status_reg_t;
/* HBA's Auxiliary status port (register) bitmap */
typedef struct reg_abit { /* reading this won't clear the interrupt */
u_int8_t abusy :1, /* auxiliary busy */
irq :1, /* set when drive interrupt is asserted */
:6;
} dpt_aux_status_t;
/* The EATA Register Set as a structure */
typedef struct eata_register {
u_int8_t data_reg[2]; /* R, couldn't figure this one out */
u_int8_t cp_addr[4]; /* W, CP address register */
union {
u_int8_t command; /*
* W, command code:
* [read|set] conf, send CP
*/
struct reg_bit status; /* R, see register_bit1 */
u_int8_t statusbyte;
} ovr;
struct reg_abit aux_stat; /* R, see register_bit2 */
} eata_reg_t;
/*
* Holds the results of a READ_CONFIGURATION command
* Beware of data items which are larger than 1 byte.
* these come from the DPT in network order.
* On an Intel ``CPU'' they will be upside down and backwards!
* The dpt_get_conf function is normally responsible for flipping
* Everything back.
*/
typedef struct get_conf { /* Read Configuration Array */
union {
struct {
u_int8_t foo_DevType;
u_int8_t foo_PageCode;
u_int8_t foo_Reserved0;
u_int8_t foo_len;
} foo;
u_int32_t foo_length; /* Should return 0x22, 0x24, etc */
} bar;
#define gcs_length bar.foo_length
#define gcs_PageCode bar.foo.foo_DevType
#define gcs_reserved0 bar.foo.foo_Reserved0
#define gcs_len bar.foo.foo_len
u_int32_t signature; /* Signature MUST be "EATA". ntohl()`ed */
u_int8_t version2 :4,
version :4; /* EATA Version level */
u_int8_t OCS_enabled :1, /* Overlap Command Support enabled */
TAR_support :1, /* SCSI Target Mode supported */
TRNXFR :1, /* Truncate Transfer Cmd Used in PIO Mode */
MORE_support:1, /* MORE supported (PIO Mode Only) */
DMA_support :1, /* DMA supported */
DMA_valid :1, /* DRQ value in Byte 30 is valid */
ATA :1, /* ATA device connected (not supported) */
HAA_valid :1; /* Hostadapter Address is valid */
u_int16_t cppadlen; /*
* Number of pad bytes send after CD data set
* to zero for DMA commands. Ntohl()`ed
*/
u_int8_t scsi_idS; /* SCSI ID of controller 2-0 Byte 0 res. */
u_int8_t scsi_id2; /* If not, zero is returned */
u_int8_t scsi_id1;
u_int8_t scsi_id0;
u_int32_t cplen; /* CP length: number of valid cp bytes */
u_int32_t splen; /* Returned bytes for a received SP command */
u_int16_t queuesiz; /* max number of queueable CPs */
u_int16_t dummy;
u_int16_t SGsiz; /* max number of SG table entrie */
u_int8_t IRQ :4,/* IRQ used this HBA */
IRQ_TR :1,/* IRQ Trigger: 0=edge, 1=level */
SECOND :1,/* This is a secondary controller */
DMA_channel:2;/* DRQ index, DRQ is 2comp of DRQX */
u_int8_t sync; /* 0-7 sync active bitmask (deprecated) */
u_int8_t DSBLE :1, /* ISA i/o addressing is disabled */
FORCADR :1, /* i/o address has been forced */
SG_64K :1,
SG_UAE :1,
:4;
u_int8_t MAX_ID :5, /* Max number of SCSI target IDs */
MAX_CHAN :3; /* Number of SCSI busses on HBA */
u_int8_t MAX_LUN; /* Max number of LUNs */
u_int8_t :3,
AUTOTRM :1,
M1_inst :1,
ID_qest :1, /* Raidnum ID is questionable */
is_PCI :1, /* HBA is PCI */
is_EISA :1; /* HBA is EISA */
u_int8_t RAIDNUM; /* unique HBA identifier */
u_int8_t unused[4]; /* When doing PIO, you GET 512 bytes */
/* >>------>> End of The DPT structure <<------<< */
u_int32_t length; /* True length, after ntohl conversion */
} dpt_conf_t;
/* Scatter-Gather list entry */
typedef struct dpt_sg_segment {
u_int32_t seg_addr; /* All fields in network byte order */
u_int32_t seg_len;
} dpt_sg_t;
/* Status Packet */
typedef struct eata_sp {
u_int8_t hba_stat :7, /* HBA status */
EOC :1; /* True if command finished */
u_int8_t scsi_stat; /* Target SCSI status */
u_int8_t reserved[2];
u_int32_t residue_len; /* Number of bytes not transferred */
u_int32_t ccb_busaddr;
u_int8_t sp_ID_Message;
u_int8_t sp_Que_Message;
u_int8_t sp_Tag_Message;
u_int8_t msg[9];
} dpt_sp_t;
/*
* A strange collection of O/S-Hardware releated bits and pieces.
* Used by the dpt_ioctl() entry point to return DPT_SYSINFO command.
*/
typedef struct dpt_drive_parameters {
u_int16_t cylinders; /* Up to 1024 */
u_int8_t heads; /* Up to 255 */
u_int8_t sectors; /* Up to 63 */
} dpt_drive_t;
typedef struct driveParam_S driveParam_T;
#define SI_CMOS_Valid 0x0001
#define SI_NumDrivesValid 0x0002
#define SI_ProcessorValid 0x0004
#define SI_MemorySizeValid 0x0008
#define SI_DriveParamsValid 0x0010
#define SI_SmartROMverValid 0x0020
#define SI_OSversionValid 0x0040
#define SI_OSspecificValid 0x0080
#define SI_BusTypeValid 0x0100
#define SI_ALL_VALID 0x0FFF
#define SI_NO_SmartROM 0x8000
#define SI_ISA_BUS 0x00
#define SI_MCA_BUS 0x01
#define SI_EISA_BUS 0x02
#define SI_PCI_BUS 0x04
#define HBA_BUS_ISA 0x00
#define HBA_BUS_EISA 0x01
#define HBA_BUS_PCI 0x02
typedef struct dpt_sysinfo {
u_int8_t drive0CMOS; /* CMOS Drive 0 Type */
u_int8_t drive1CMOS; /* CMOS Drive 1 Type */
u_int8_t numDrives; /* 0040:0075 contents */
u_int8_t processorFamily; /* Same as DPTSIG definition */
u_int8_t processorType; /* Same as DPTSIG definition */
u_int8_t smartROMMajorVersion;
u_int8_t smartROMMinorVersion; /* SmartROM version */
u_int8_t smartROMRevision;
u_int16_t flags; /* See bit definitions above */
u_int16_t conventionalMemSize; /* in KB */
u_int32_t extendedMemSize; /* in KB */
u_int32_t osType; /* Same as DPTSIG definition */
u_int8_t osMajorVersion;
u_int8_t osMinorVersion; /* The OS version */
u_int8_t osRevision;
u_int8_t osSubRevision;
u_int8_t busType; /* See defininitions above */
u_int8_t pad[3]; /* For alignment */
dpt_drive_t drives[16]; /* SmartROM Logical Drives */
} dpt_sysinfo_t;
/* SEND_COMMAND packet structure */
typedef struct eata_ccb {
u_int8_t SCSI_Reset :1, /* Cause a SCSI Bus reset on the cmd */
HBA_Init :1, /* Cause Controller to reinitialize */
Auto_Req_Sen :1, /* Do Auto Request Sense on errors */
scatter :1, /* Data Ptr points to a SG Packet */
Quick :1, /* Set this one for NO Status PAcket */
Interpret :1, /* Interpret the SCSI cdb for own use */
DataOut :1, /* Data Out phase with command */
DataIn :1; /* Data In phase with command */
u_int8_t reqlen; /* Request Sense Length, if Auto_Req_Sen=1 */
u_int8_t unused[3];
u_int8_t FWNEST :1, /* send cmd to phys RAID component */
unused2 :7;
u_int8_t Phsunit :1, /* physical unit on mirrored pair */
I_AT :1, /* inhibit address translation */
Disable_Cache :1, /* HBA inhibit caching */
:5;
u_int8_t cp_id :5, /* SCSI Device ID of target */
cp_channel :3; /* SCSI Channel # of HBA */
u_int8_t cp_LUN :5,
cp_luntar :1, /* CP is for target ROUTINE */
cp_dispri :1, /* Grant disconnect privilege */
cp_identify :1; /* Always TRUE */
u_int8_t cp_msg[3]; /* Message bytes 0-3 */
union {
struct {
u_int8_t x_scsi_cmd; /* Partial SCSI CDB def */
u_int8_t x_extent :1,
x_bytchk :1,
x_reladr :1,
x_cmplst :1,
x_fmtdata :1,
x_lun :3;
u_int8_t x_page;
u_int8_t reserved4;
u_int8_t x_len;
u_int8_t x_link :1;
u_int8_t x_flag :1;
u_int8_t reserved5 :4;
u_int8_t x_vendor :2;
} x;
u_int8_t z[12]; /* Command Descriptor Block (= 12) */
} cp_w;
#define cp_cdb cp_w.z
#define cp_scsi_cmd cp_w.x.x_scsi_cmd
#define cp_extent cp_w.x.x_extent
#define cp_lun cp_w.x.x_lun
#define cp_page cp_w.x.x_page
#define cp_len cp_w.x.x_len
#define MULTIFUNCTION_CMD 0x0e /* SCSI Multi Function Cmd */
#define BUS_QUIET 0x04 /* Quite Scsi Bus Code */
#define BUS_UNQUIET 0x05 /* Un Quiet Scsi Bus Code */
u_int32_t cp_datalen; /*
* Data Transfer Length. If scatter=1 len (IN
* BYTES!) of the S/G array
*/
u_int32_t cp_busaddr; /* Unique identifier. Busaddr works well */
u_int32_t cp_dataDMA; /*
* Data Address, if scatter=1 then it is the
* address of scatter packet
*/
u_int32_t cp_statDMA; /* address for Status Packet */
u_int32_t cp_reqDMA; /*
* Request Sense Address, used if CP command
* ends with error
*/
u_int8_t CP_OpCode;
} eata_ccb_t;
/*
* DPT Signature Structure.
* Used by /dev/dpt to directly pass commands to the HBA
* We have more information here than we care for...
*/
/* Current Signature Version - sigBYTE dsSigVersion; */
#define SIG_VERSION 1
/*
* Processor Family - sigBYTE dsProcessorFamily; DISTINCT VALUE
*
* What type of processor the file is meant to run on.
* This will let us know whether to read sigWORDs as high/low or low/high.
*/
#define PROC_INTEL 0x00 /* Intel 80x86 */
#define PROC_MOTOROLA 0x01 /* Motorola 68K */
#define PROC_MIPS4000 0x02 /* MIPS RISC 4000 */
#define PROC_ALPHA 0x03 /* DEC Alpha */
/*
* Specific Minimim Processor - sigBYTE dsProcessor; FLAG BITS
*
* Different bit definitions dependent on processor_family
*/
/* PROC_INTEL: */
#define PROC_8086 0x01 /* Intel 8086 */
#define PROC_286 0x02 /* Intel 80286 */
#define PROC_386 0x04 /* Intel 80386 */
#define PROC_486 0x08 /* Intel 80486 */
#define PROC_PENTIUM 0x10 /* Intel 586 aka P5 aka Pentium */
#define PROC_P6 0x20 /* Intel 686 aka P6 */
/* PROC_MOTOROLA: */
#define PROC_68000 0x01 /* Motorola 68000 */
#define PROC_68020 0x02 /* Motorola 68020 */
#define PROC_68030 0x04 /* Motorola 68030 */
#define PROC_68040 0x08 /* Motorola 68040 */
/* Filetype - sigBYTE dsFiletype; DISTINCT VALUES */
#define FT_EXECUTABLE 0 /* Executable Program */
#define FT_SCRIPT 1 /* Script/Batch File??? */
#define FT_HBADRVR 2 /* HBA Driver */
#define FT_OTHERDRVR 3 /* Other Driver */
#define FT_IFS 4 /* Installable Filesystem Driver */
#define FT_ENGINE 5 /* DPT Engine */
#define FT_COMPDRVR 6 /* Compressed Driver Disk */
#define FT_LANGUAGE 7 /* Foreign Language file */
#define FT_FIRMWARE 8 /* Downloadable or actual Firmware */
#define FT_COMMMODL 9 /* Communications Module */
#define FT_INT13 10 /* INT 13 style HBA Driver */
#define FT_HELPFILE 11 /* Help file */
#define FT_LOGGER 12 /* Event Logger */
#define FT_INSTALL 13 /* An Install Program */
#define FT_LIBRARY 14 /* Storage Manager Real-Mode Calls */
#define FT_RESOURCE 15 /* Storage Manager Resource File */
#define FT_MODEM_DB 16 /* Storage Manager Modem Database */
/* Filetype flags - sigBYTE dsFiletypeFlags; FLAG BITS */
#define FTF_DLL 0x01 /* Dynamic Link Library */
#define FTF_NLM 0x02 /* Netware Loadable Module */
#define FTF_OVERLAYS 0x04 /* Uses overlays */
#define FTF_DEBUG 0x08 /* Debug version */
#define FTF_TSR 0x10 /* TSR */
#define FTF_SYS 0x20 /* DOS Lodable driver */
#define FTF_PROTECTED 0x40 /* Runs in protected mode */
#define FTF_APP_SPEC 0x80 /* Application Specific */
/* OEM - sigBYTE dsOEM; DISTINCT VALUES */
#define OEM_DPT 0 /* DPT */
#define OEM_ATT 1 /* ATT */
#define OEM_NEC 2 /* NEC */
#define OEM_ALPHA 3 /* Alphatronix */
#define OEM_AST 4 /* AST */
#define OEM_OLIVETTI 5 /* Olivetti */
#define OEM_SNI 6 /* Siemens/Nixdorf */
/* Operating System - sigLONG dsOS; FLAG BITS */
#define OS_DOS 0x00000001 /* PC/MS-DOS */
#define OS_WINDOWS 0x00000002 /* Microsoft Windows 3.x */
#define OS_WINDOWS_NT 0x00000004 /* Microsoft Windows NT */
#define OS_OS2M 0x00000008 /* OS/2 1.2.x,MS 1.3.0,IBM 1.3.x */
#define OS_OS2L 0x00000010 /* Microsoft OS/2 1.301 - LADDR */
#define OS_OS22x 0x00000020 /* IBM OS/2 2.x */
#define OS_NW286 0x00000040 /* Novell NetWare 286 */
#define OS_NW386 0x00000080 /* Novell NetWare 386 */
#define OS_GEN_UNIX 0x00000100 /* Generic Unix */
#define OS_SCO_UNIX 0x00000200 /* SCO Unix */
#define OS_ATT_UNIX 0x00000400 /* ATT Unix */
#define OS_UNIXWARE 0x00000800 /* UnixWare Unix */
#define OS_INT_UNIX 0x00001000 /* Interactive Unix */
#define OS_SOLARIS 0x00002000 /* SunSoft Solaris */
#define OS_QN 0x00004000 /* QNX for Tom Moch */
#define OS_NEXTSTEP 0x00008000 /* NeXTSTEP */
#define OS_BANYAN 0x00010000 /* Banyan Vines */
#define OS_OLIVETTI_UNIX 0x00020000 /* Olivetti Unix */
#define OS_FREEBSD 0x00040000 /* FreeBSD 2.2 and later */
#define OS_OTHER 0x80000000 /* Other */
/* Capabilities - sigWORD dsCapabilities; FLAG BITS */
#define CAP_RAID0 0x0001 /* RAID-0 */
#define CAP_RAID1 0x0002 /* RAID-1 */
#define CAP_RAID3 0x0004 /* RAID-3 */
#define CAP_RAID5 0x0008 /* RAID-5 */
#define CAP_SPAN 0x0010 /* Spanning */
#define CAP_PASS 0x0020 /* Provides passthrough */
#define CAP_OVERLAP 0x0040 /* Passthrough supports overlapped commands */
#define CAP_ASPI 0x0080 /* Supports ASPI Command Requests */
#define CAP_ABOVE16MB 0x0100 /* ISA Driver supports greater than 16MB */
#define CAP_EXTEND 0x8000 /* Extended info appears after description */
/* Devices Supported - sigWORD dsDeviceSupp; FLAG BITS */
#define DEV_DASD 0x0001 /* DASD (hard drives) */
#define DEV_TAPE 0x0002 /* Tape drives */
#define DEV_PRINTER 0x0004 /* Printers */
#define DEV_PROC 0x0008 /* Processors */
#define DEV_WORM 0x0010 /* WORM drives */
#define DEV_CDROM 0x0020 /* CD-ROM drives */
#define DEV_SCANNER 0x0040 /* Scanners */
#define DEV_OPTICAL 0x0080 /* Optical Drives */
#define DEV_JUKEBOX 0x0100 /* Jukebox */
#define DEV_COMM 0x0200 /* Communications Devices */
#define DEV_OTHER 0x0400 /* Other Devices */
#define DEV_ALL 0xFFFF /* All SCSI Devices */
/* Adapters Families Supported - sigWORD dsAdapterSupp; FLAG BITS */
#define ADF_2001 0x0001 /* PM2001 */
#define ADF_2012A 0x0002 /* PM2012A */
#define ADF_PLUS_ISA 0x0004 /* PM2011,PM2021 */
#define ADF_PLUS_EISA 0x0008 /* PM2012B,PM2022 */
#define ADF_SC3_ISA 0x0010 /* PM2021 */
#define ADF_SC3_EISA 0x0020 /* PM2022,PM2122, etc */
#define ADF_SC3_PCI 0x0040 /* SmartCache III PCI */
#define ADF_SC4_ISA 0x0080 /* SmartCache IV ISA */
#define ADF_SC4_EISA 0x0100 /* SmartCache IV EISA */
#define ADF_SC4_PCI 0x0200 /* SmartCache IV PCI */
#define ADF_ALL_MASTER 0xFFFE /* All bus mastering */
#define ADF_ALL_CACHE 0xFFFC /* All caching */
#define ADF_ALL 0xFFFF /* ALL DPT adapters */
/* Application - sigWORD dsApplication; FLAG BITS */
#define APP_DPTMGR 0x0001 /* DPT Storage Manager */
#define APP_ENGINE 0x0002 /* DPT Engine */
#define APP_SYTOS 0x0004 /* Sytron Sytos Plus */
#define APP_CHEYENNE 0x0008 /* Cheyenne ARCServe + ARCSolo */
#define APP_MSCDEX 0x0010 /* Microsoft CD-ROM extensions */
#define APP_NOVABACK 0x0020 /* NovaStor Novaback */
#define APP_AIM 0x0040 /* Archive Information Manager */
/* Requirements - sigBYTE dsRequirements; FLAG BITS */
#define REQ_SMARTROM 0x01 /* Requires SmartROM to be present */
#define REQ_DPTDDL 0x02 /* Requires DPTDDL.SYS to be loaded */
#define REQ_HBA_DRIVER 0x04 /* Requires an HBA driver to be loaded */
#define REQ_ASPI_TRAN 0x08 /* Requires an ASPI Transport Modules */
#define REQ_ENGINE 0x10 /* Requires a DPT Engine to be loaded */
#define REQ_COMM_ENG 0x20 /* Requires a DPT Communications Engine */
typedef struct dpt_sig {
char dsSignature[6]; /* ALWAYS "dPtSiG" */
u_int8_t SigVersion; /* signature version (currently 1) */
u_int8_t ProcessorFamily; /* what type of processor */
u_int8_t Processor; /* precise processor */
u_int8_t Filetype; /* type of file */
u_int8_t FiletypeFlags; /* flags to specify load type, etc. */
u_int8_t OEM; /* OEM file was created for */
u_int32_t OS; /* which Operating systems */
u_int16_t Capabilities; /* RAID levels, etc. */
u_int16_t DeviceSupp; /* Types of SCSI devices supported */
u_int16_t AdapterSupp; /* DPT adapter families supported */
u_int16_t Application; /* applications file is for */
u_int8_t Requirements; /* Other driver dependencies */
u_int8_t Version; /* 1 */
u_int8_t Revision; /* 'J' */
u_int8_t SubRevision; /* '9', ' ' if N/A */
u_int8_t Month; /* creation month */
u_int8_t Day; /* creation day */
u_int8_t Year; /* creation year since 1980 */
char *Description; /* description (NULL terminated) */
} dpt_sig_t;
/* 32 bytes minimum - with no description. Put NULL at description[0] */
/* 81 bytes maximum - with 49 character description plus NULL. */
/* This line added at Roycroft's request */
/* Microsoft's NT compiler gets confused if you do a pack and don't */
/* restore it. */
typedef struct eata_pass_through {
u_int8_t eataID[4];
u_int32_t command;
#define EATAUSRCMD (('D'<<8)|65) /* EATA PassThrough Command */
#define DPT_SIGNATURE (('D'<<8)|67) /* Get Signature Structure */
#define DPT_NUMCTRLS (('D'<<8)|68) /* Get Number Of DPT Adapters */
#define DPT_CTRLINFO (('D'<<8)|69) /* Get Adapter Info Structure */
#define DPT_SYSINFO (('D'<<8)|72) /* Get System Info Structure */
#define DPT_BLINKLED (('D'<<8)|75) /* Get The BlinkLED Status */
u_int8_t *command_buffer;
eata_ccb_t command_packet;
u_int32_t timeout;
u_int8_t host_status;
u_int8_t target_status;
u_int8_t retries;
} eata_pt_t;
typedef enum {
DCCB_FREE = 0x00,
DCCB_ACTIVE = 0x01,
DCCB_RELEASE_SIMQ = 0x02
} dccb_state;
typedef struct dpt_ccb {
eata_ccb_t eata_ccb;
bus_dmamap_t dmamap;
struct callout timer;
dpt_sg_t *sg_list;
u_int32_t sg_busaddr;
dccb_state state;
union ccb *ccb;
struct scsi_sense_data sense_data;
u_int8_t tag;
u_int8_t retries;
u_int8_t status; /* status of this queueslot */
u_int8_t *cmd; /* address of cmd */
u_int32_t transaction_id;
u_int32_t result;
caddr_t data;
SLIST_ENTRY(dpt_ccb) links;
#ifdef DPT_MEASURE_PERFORMANCE
u_int32_t submitted_time;
struct timeval command_started;
struct timeval command_ended;
#endif
} dpt_ccb_t;
/*
* This is provided for compatibility with UnixWare only.
* Some of the fields may be bogus.
* Others may have a totally different meaning.
*/
typedef struct dpt_scsi_ha {
u_int32_t ha_state; /* Operational state */
u_int8_t ha_id[MAX_CHANNELS]; /* Host adapter SCSI ids */
int32_t ha_base; /* Base I/O address */
int ha_max_jobs; /* Max number of Active Jobs */
int ha_cache:2; /* Cache parameters */
int ha_cachesize:30; /* In meg, only if cache present*/
int ha_nbus; /* Number Of Busses on HBA */
int ha_ntargets; /* Number Of Targets Supported */
int ha_nluns; /* Number Of LUNs Supported */
int ha_tshift; /* Shift value for target */
int ha_bshift; /* Shift value for bus */
int ha_npend; /* # of jobs sent to HBA */
int ha_active_jobs; /* Number Of Active Jobs */
char ha_fw_version[4]; /* Firmware Revision Level */
void *ha_ccb; /* Controller command blocks */
void *ha_cblist; /* Command block free list */
void *ha_dev; /* Logical unit queues */
void *ha_StPkt_lock; /* Status Packet Lock */
void *ha_ccb_lock; /* CCB Lock */
void *ha_LuQWaiting; /* Lu Queue Waiting List */
void *ha_QWait_lock; /* Device Que Waiting Lock */
int ha_QWait_opri; /* Saved Priority Level */
#ifdef DPT_TARGET_MODE
dpt_ccb_t *target_ccb[MAX_CHANNELS]; /* Command block waiting writebuf */
#endif
} dpt_compat_ha_t;
/*
* Describe the Inquiry Data returned on Page 0 from the Adapter. The
* Page C1 Inquiry Data is described in the DptConfig_t structure above.
*/
typedef struct {
u_int8_t deviceType;
u_int8_t rm_dtq;
u_int8_t otherData[6];
u_int8_t vendor[8];
u_int8_t modelNum[16];
u_int8_t firmware[4];
u_int8_t protocol[4];
} dpt_inq_t;
/*
* sp_EOC is not `safe', so I will check sp_Messages[0] instead!
*/
#define DptStat_BUSY(x) ((x)->sp_ID_Message)
#define DptStat_Reset_BUSY(x) \
((x)->msg[0] = 0xA5, (x)->EOC = 0, \
(x)->ccb_busaddr = ~0)
#ifdef DPT_MEASURE_PERFORMANCE
#define BIG_ENOUGH 0x8fffffff
typedef struct dpt_metrics {
u_int32_t command_count[256]; /* We assume MAX 256 SCSI commands */
u_int32_t max_command_time[256];
u_int32_t min_command_time[256];
u_int32_t min_intr_time;
u_int32_t max_intr_time;
u_int32_t aborted_interrupts;
u_int32_t spurious_interrupts;
u_int32_t max_waiting_count;
u_int32_t max_submit_count;
u_int32_t max_complete_count;
u_int32_t min_waiting_time;
u_int32_t min_submit_time;
u_int32_t min_complete_time;
u_int32_t max_waiting_time;
u_int32_t max_submit_time;
u_int32_t max_complete_time;
u_int32_t command_collisions;
u_int32_t command_too_busy;
u_int32_t max_eata_tries;
u_int32_t min_eata_tries;
u_int32_t read_by_size_count[10];
u_int32_t write_by_size_count[10];
u_int32_t read_by_size_min_time[10];
u_int32_t read_by_size_max_time[10];
u_int32_t write_by_size_min_time[10];
u_int32_t write_by_size_max_time[10];
#define SIZE_512 0
#define SIZE_1K 1
#define SIZE_2K 2
#define SIZE_4K 3
#define SIZE_8K 4
#define SIZE_16K 5
#define SIZE_32K 6
#define SIZE_64K 7
#define SIZE_BIGGER 8
#define SIZE_OTHER 9
struct timeval intr_started;
u_int32_t warm_starts;
u_int32_t cold_boots;
} dpt_perf_t;
#endif
struct sg_map_node {
bus_dmamap_t sg_dmamap;
bus_addr_t sg_physaddr;
dpt_sg_t* sg_vaddr;
SLIST_ENTRY(sg_map_node) links;
};
/* Main state machine and interface structure */
typedef struct dpt_softc {
device_t dev;
struct mtx lock;
struct resource * io_res;
int io_rid;
int io_type;
int io_offset;
struct resource * irq_res;
int irq_rid;
void * ih;
struct resource * drq_res;
int drq_rid;
bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
dpt_ccb_t *dpt_dccbs; /* Array of dpt ccbs */
bus_addr_t dpt_ccb_busbase; /* phys base address of array */
bus_addr_t dpt_ccb_busend; /* phys end address of array */
u_int32_t handle_interrupts :1, /* Are we ready for real work? */
target_mode_enabled :1,
resource_shortage :1,
cache_type :2,
spare :28;
int total_dccbs;
int free_dccbs;
int pending_ccbs;
int completed_ccbs;
SLIST_HEAD(, dpt_ccb) free_dccb_list;
LIST_HEAD(, ccb_hdr) pending_ccb_list;
bus_dma_tag_t parent_dmat;
bus_dma_tag_t dccb_dmat; /* dmat for our ccb array */
bus_dmamap_t dccb_dmamap;
bus_dma_tag_t sg_dmat; /* dmat for our sg maps */
SLIST_HEAD(, sg_map_node) sg_maps;
struct cam_sim *sims[MAX_CHANNELS];
struct cam_path *paths[MAX_CHANNELS];
u_int32_t commands_processed;
u_int32_t lost_interrupts;
/*
* These three parameters can be used to allow for wide scsi, and
* for host adapters that support multiple busses. The first two
* should be set to 1 more than the actual max id or lun (i.e. 8 for
* normal systems).
*
* There is a FAT assumption here; We assume that these will never
* exceed MAX_CHANNELS, MAX_TARGETS, MAX_LUNS
*/
u_int channels; /* # of avail scsi chan. */
u_int32_t max_id;
u_int32_t max_lun;
u_int8_t irq;
u_int8_t dma_channel;
TAILQ_ENTRY(dpt_softc) links;
int init_level;
/*
* Every object on a unit can have a receiver, if it treats
* us as a target. We do that so that separate and independent
* clients can consume received buffers.
*/
#define DPT_RW_BUFFER_SIZE (8 * 1024)
dpt_ccb_t *target_ccb[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
u_int8_t *rw_buffer[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
dpt_rec_buff buffer_receiver[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
dpt_inq_t board_data;
u_int8_t EATA_revision;
u_int8_t bustype; /* bustype of HBA */
u_int32_t state; /* state of HBA */
#define DPT_HA_FREE 0x00000000
#define DPT_HA_OK 0x00000000
#define DPT_HA_NO_TIMEOUT 0x00000000
#define DPT_HA_BUSY 0x00000001
#define DPT_HA_TIMEOUT 0x00000002
#define DPT_HA_RESET 0x00000004
#define DPT_HA_LOCKED 0x00000008
#define DPT_HA_ABORTED 0x00000010
#define DPT_HA_CONTROL_ACTIVE 0x00000020
#define DPT_HA_SHUTDOWN_ACTIVE 0x00000040
#define DPT_HA_COMMAND_ACTIVE 0x00000080
#define DPT_HA_QUIET 0x00000100
u_int8_t primary; /* true if primary */
u_int8_t more_support :1, /* HBA supports MORE flag */
immediate_support :1, /* HBA supports IMMEDIATE */
broken_INQUIRY :1, /* EISA HBA w/broken INQUIRY */
spare2 :5;
u_int8_t resetlevel[MAX_CHANNELS];
u_int32_t last_ccb; /* Last used ccb */
u_int32_t cplen; /* size of CP in words */
u_int16_t cppadlen; /* pad length of cp */
u_int16_t max_dccbs;
u_int16_t sgsize; /* Entries in the SG list */
u_int8_t hostid[MAX_CHANNELS]; /* SCSI ID of HBA */
u_int32_t cache_size;
volatile dpt_sp_t *sp; /* status packet */
/* Copied from the status packet during interrupt handler */
u_int8_t hba_stat;
u_int8_t scsi_stat; /* Target SCSI status */
u_int32_t residue_len; /* Number of bytes not transferred */
bus_addr_t sp_physaddr; /* phys address of status packet */
/*
* We put ALL conditional elements at the tail for the structure.
* If we do not, then userland code will crash or trash based on which
* kernel it is running with.
* This isi most visible with usr/sbin/dpt_softc(8)
*/
#ifdef DPT_MEASURE_PERFORMANCE
dpt_perf_t performance;
#endif
#ifdef DPT_RESET_HBA
struct timeval last_contact;
#endif
} dpt_softc_t;
/*
* This structure is used to pass dpt_softc contents to userland via the
* ioctl DPT_IOCTL_SOFTC. The reason for this maddness, is that FreeBSD
* (all BSDs ?) chose to actually assign a nasty meaning to the IOCTL word,
* encoding 13 bits of it as size. As dpt_softc_t is somewhere between
* 8,594 and 8,600 (depends on options), we have to copy the data to
* something less than 4KB long. This siliness also solves the problem of
* varying definition of dpt_softc_t, As the variants are exluded from
* dpt_user_softc.
*
* See dpt_softc_t above for enumerations, comments and such.
*/
typedef struct dpt_user_softc {
int unit;
u_int32_t handle_interrupts :1, /* Are we ready for real work? */
target_mode_enabled :1,
spare :30;
int total_ccbs_count;
int free_ccbs_count;
int waiting_ccbs_count;
int submitted_ccbs_count;
int completed_ccbs_count;
u_int32_t queue_status;
u_int32_t free_lock;
u_int32_t waiting_lock;
u_int32_t submitted_lock;
u_int32_t completed_lock;
u_int32_t commands_processed;
u_int32_t lost_interrupts;
u_int8_t channels;
u_int32_t max_id;
u_int32_t max_lun;
u_int16_t io_base;
u_int8_t *v_membase;
u_int8_t *p_membase;
u_int8_t irq;
u_int8_t dma_channel;
dpt_inq_t board_data;
u_int8_t EATA_revision;
u_int8_t bustype;
u_int32_t state;
u_int8_t primary;
u_int8_t more_support :1,
immediate_support :1,
broken_INQUIRY :1,
spare2 :5;
u_int8_t resetlevel[MAX_CHANNELS];
u_int32_t last_ccb;
u_int32_t cplen;
u_int16_t cppadlen;
u_int16_t queuesize;
u_int16_t sgsize;
u_int8_t hostid[MAX_CHANNELS];
u_int32_t cache_type :2,
cache_size :30;
} dpt_user_softc_t;
/*
* Externals:
* These all come from dpt_scsi.c
*
*/
#ifdef _KERNEL
/* This function gets the current hi-res time and returns it to the caller */
static __inline struct timeval
dpt_time_now(void)
{
struct timeval now;
microtime(&now);
return(now);
}
/*
* Given a minor device number, get its SCSI Unit.
*/
static __inline int
dpt_minor2unit(int minor)
{
return(minor2hba(minor));
}
dpt_softc_t *dpt_minor2softc(int minor_no);
#endif /* _KERNEL */
/*
* This function subtracts one timval structure from another,
* Returning the result in usec.
* It assumes that less than 4 billion usecs passed form start to end.
* If times are sensless, ~0 is returned.
*/
static __inline u_int32_t
dpt_time_delta(struct timeval start,
struct timeval end)
{
if (start.tv_sec > end.tv_sec)
return(~0);
if ( (start.tv_sec == end.tv_sec) && (start.tv_usec > end.tv_usec) )
return(~0);
return ( (end.tv_sec - start.tv_sec) * 1000000 +
(end.tv_usec - start.tv_usec) );
}
extern devclass_t dpt_devclass;
#ifdef _KERNEL
void dpt_alloc(device_t);
int dpt_detach(device_t);
int dpt_alloc_resources(device_t);
void dpt_release_resources(device_t);
#endif
void dpt_free(struct dpt_softc *dpt);
int dpt_init(struct dpt_softc *dpt);
int dpt_attach(dpt_softc_t * dpt);
void dpt_intr(void *arg);
#ifdef DEV_EISA
dpt_conf_t * dpt_pio_get_conf(u_int32_t);
#endif
#if 0
extern void hex_dump(u_char * data, int length,
char *name, int no);
extern char *i2bin(unsigned int no, int length);
extern char *scsi_cmd_name(u_int8_t cmd);
extern dpt_conf_t *dpt_get_conf(dpt_softc_t *dpt, u_int8_t page,
u_int8_t target, u_int8_t size,
int extent);
extern int dpt_setup(dpt_softc_t * dpt, dpt_conf_t * conf);
extern int dpt_attach(dpt_softc_t * dpt);
extern void dpt_shutdown(int howto, dpt_softc_t *dpt);
extern void dpt_detect_cache(dpt_softc_t *dpt);
extern int dpt_user_cmd(dpt_softc_t *dpt, eata_pt_t *user_cmd,
caddr_t cmdarg, int minor_no);
extern u_int8_t dpt_blinking_led(dpt_softc_t *dpt);
extern dpt_rb_t dpt_register_buffer(int unit, u_int8_t channel, u_int8_t target,
u_int8_t lun, u_int8_t mode,
u_int16_t length, u_int16_t offset,
dpt_rec_buff callback, dpt_rb_op_t op);
extern int dpt_send_buffer(int unit, u_int8_t channel, u_int8_t target,
u_int8_t lun, u_int8_t mode, u_int16_t length,
u_int16_t offset, void *data,
buff_wr_done callback);
void dpt_reset_performance(dpt_softc_t *dpt);
#endif
#endif /* _DPT_H */
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