freebsd-dev/sys/dev/ata/ata-all.h

/*-
 * Copyright (c) 1998 - 2005 S<EFBFBD>ren Schmidt <sos@FreeBSD.org>
 * 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 ``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 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.
 *
 * $FreeBSD$
 */

/* ATA register defines */
#define ATA_DATA                        0       /* (RW) data */

#define ATA_FEATURE                     1       /* (W) feature */
#define         ATA_F_DMA               0x01    /* enable DMA */
#define         ATA_F_OVL               0x02    /* enable overlap */

#define ATA_COUNT                       2       /* (W) sector count */

#define ATA_SECTOR                      3       /* (RW) sector # */
#define ATA_CYL_LSB                     4       /* (RW) cylinder# LSB */
#define ATA_CYL_MSB                     5       /* (RW) cylinder# MSB */
#define ATA_DRIVE                       6       /* (W) Sector/Drive/Head */
#define         ATA_D_LBA               0x40    /* use LBA addressing */
#define         ATA_D_IBM               0xa0    /* 512 byte sectors, ECC */

#define ATA_COMMAND                     7       /* (W) command */

#define ATA_ERROR                       8       /* (R) error */
#define         ATA_E_ILI               0x01    /* illegal length */
#define         ATA_E_NM                0x02    /* no media */
#define         ATA_E_ABORT             0x04    /* command aborted */
#define         ATA_E_MCR               0x08    /* media change request */
#define         ATA_E_IDNF              0x10    /* ID not found */
#define         ATA_E_MC                0x20    /* media changed */
#define         ATA_E_UNC               0x40    /* uncorrectable data */
#define         ATA_E_ICRC              0x80    /* UDMA crc error */
#define         ATA_E_MASK              0x0f    /* error mask */
#define         ATA_SK_MASK             0xf0    /* sense key mask */
#define         ATA_SK_NO_SENSE         0x00    /* no specific sense key info */
#define         ATA_SK_RECOVERED_ERROR  0x10    /* command OK, data recovered */
#define         ATA_SK_NOT_READY        0x20    /* no access to drive */
#define         ATA_SK_MEDIUM_ERROR     0x30    /* non-recovered data error */
#define         ATA_SK_HARDWARE_ERROR   0x40    /* non-recoverable HW failure */
#define         ATA_SK_ILLEGAL_REQUEST  0x50    /* invalid command param(s) */
#define         ATA_SK_UNIT_ATTENTION   0x60    /* media changed */
#define         ATA_SK_DATA_PROTECT     0x70    /* write protect */
#define         ATA_SK_BLANK_CHECK      0x80    /* blank check */
#define         ATA_SK_VENDOR_SPECIFIC  0x90    /* vendor specific skey */
#define         ATA_SK_COPY_ABORTED     0xa0    /* copy aborted */
#define         ATA_SK_ABORTED_COMMAND  0xb0    /* command aborted, try again */
#define         ATA_SK_EQUAL            0xc0    /* equal */
#define         ATA_SK_VOLUME_OVERFLOW  0xd0    /* volume overflow */
#define         ATA_SK_MISCOMPARE       0xe0    /* data dont match the medium */
#define         ATA_SK_RESERVED         0xf0

#define ATA_IREASON                     9       /* (R) interrupt reason */
#define         ATA_I_CMD               0x01    /* cmd (1) | data (0) */
#define         ATA_I_IN                0x02    /* read (1) | write (0) */
#define         ATA_I_RELEASE           0x04    /* released bus (1) */
#define         ATA_I_TAGMASK           0xf8    /* tag mask */

#define ATA_STATUS                      10      /* (R) status */
#define ATA_ALTSTAT                     11      /* (R) alternate status */
#define         ATA_S_ERROR             0x01    /* error */
#define         ATA_S_INDEX             0x02    /* index */
#define         ATA_S_CORR              0x04    /* data corrected */
#define         ATA_S_DRQ               0x08    /* data request */
#define         ATA_S_DSC               0x10    /* drive seek completed */
#define         ATA_S_SERVICE           0x10    /* drive needs service */
#define         ATA_S_DWF               0x20    /* drive write fault */
#define         ATA_S_DMA               0x20    /* DMA ready */
#define         ATA_S_READY             0x40    /* drive ready */
#define         ATA_S_BUSY              0x80    /* busy */

#define ATA_CONTROL                     12      /* (W) control */

#define ATA_CTLOFFSET                   0x206   /* control register offset */
#define ATA_PCCARD_CTLOFFSET            0x0e    /* do for PCCARD devices */
#define ATA_PC98_CTLOFFSET              0x10c   /* do for PC98 devices */
#define         ATA_A_IDS               0x02    /* disable interrupts */
#define         ATA_A_RESET             0x04    /* RESET controller */
#define         ATA_A_4BIT              0x08    /* 4 head bits */
#define         ATA_A_HOB               0x80    /* High Order Byte enable */

/* SATA register defines */
#define ATA_SSTATUS                     13
#define         ATA_SS_DET_MASK         0x0000000f
#define         ATA_SS_DET_NO_DEVICE    0x00000000
#define         ATA_SS_DET_DEV_PRESENT  0x00000001
#define         ATA_SS_DET_PHY_ONLINE   0x00000003
#define         ATA_SS_DET_PHY_OFFLINE  0x00000004

#define         ATA_SS_SPD_MASK         0x000000f0
#define         ATA_SS_SPD_NO_SPEED     0x00000000
#define         ATA_SS_SPD_GEN1         0x00000010
#define         ATA_SS_SPD_GEN2         0x00000020

#define         ATA_SS_IPM_MASK         0x00000f00
#define         ATA_SS_IPM_NO_DEVICE    0x00000000
#define         ATA_SS_IPM_ACTIVE       0x00000100
#define         ATA_SS_IPM_PARTIAL      0x00000200
#define         ATA_SS_IPM_SLUMBER      0x00000600

#define         ATA_SS_CONWELL_MASK \
		    (ATA_SS_DET_MASK|ATA_SS_SPD_MASK|ATA_SS_IPM_MASK)
#define         ATA_SS_CONWELL_GEN1 \
		    (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN1|ATA_SS_IPM_ACTIVE)
#define         ATA_SS_CONWELL_GEN2 \
		    (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN2|ATA_SS_IPM_ACTIVE)

#define ATA_SERROR                      14
#define         ATA_SE_DATA_CORRECTED   0x00000001
#define         ATA_SE_COMM_CORRECTED   0x00000002
#define         ATA_SE_DATA_ERR         0x00000100
#define         ATA_SE_COMM_ERR         0x00000200
#define         ATA_SE_PROT_ERR         0x00000400
#define         ATA_SE_HOST_ERR         0x00000800
#define         ATA_SE_PHY_CHANGED      0x00010000
#define         ATA_SE_PHY_IERROR       0x00020000
#define         ATA_SE_COMM_WAKE        0x00040000
#define         ATA_SE_DECODE_ERR       0x00080000
#define         ATA_SE_PARITY_ERR       0x00100000
#define         ATA_SE_CRC_ERR          0x00200000
#define         ATA_SE_HANDSHAKE_ERR    0x00400000
#define         ATA_SE_LINKSEQ_ERR      0x00800000
#define         ATA_SE_TRANSPORT_ERR    0x01000000
#define         ATA_SE_UNKNOWN_FIS      0x02000000

#define ATA_SCONTROL                    15
#define         ATA_SC_DET_MASK         0x0000000f
#define         ATA_SC_DET_IDLE         0x00000000
#define         ATA_SC_DET_RESET        0x00000001
#define         ATA_SC_DET_DISABLE      0x00000004

#define         ATA_SC_SPD_MASK         0x000000f0
#define         ATA_SC_SPD_NO_SPEED     0x00000000
#define         ATA_SC_SPD_SPEED_GEN1   0x00000010
#define         ATA_SC_SPD_SPEED_GEN2   0x00000020

#define         ATA_SC_IPM_MASK         0x00000f00
#define         ATA_SC_IPM_NONE         0x00000000
#define         ATA_SC_IPM_DIS_PARTIAL  0x00000100
#define         ATA_SC_IPM_DIS_SLUMBER  0x00000200

#define ATA_SACTIVE                     16

/* SATA AHCI v1.0 register defines */
#define ATA_AHCI_CAP                    0x00
#define         ATA_AHCI_NPMASK         0x1f

#define ATA_AHCI_GHC                    0x04
#define         ATA_AHCI_GHC_AE         0x80000000
#define         ATA_AHCI_GHC_IE         0x00000002
#define         ATA_AHCI_GHC_HR         0x80000001

#define ATA_AHCI_IS                     0x08
#define ATA_AHCI_PI                     0x0c
#define ATA_AHCI_VS                     0x10

#define ATA_AHCI_OFFSET                 0x80

#define ATA_AHCI_P_CLB                  0x100
#define ATA_AHCI_P_CLBU                 0x104
#define ATA_AHCI_P_FB                   0x108
#define ATA_AHCI_P_FBU                  0x10c
#define ATA_AHCI_P_IS                   0x110
#define ATA_AHCI_P_IE                   0x114
#define         ATA_AHCI_P_IX_DHR       0x00000001
#define         ATA_AHCI_P_IX_PS        0x00000002
#define         ATA_AHCI_P_IX_DS        0x00000004
#define         ATA_AHCI_P_IX_SDB       0x00000008
#define         ATA_AHCI_P_IX_UF        0x00000010
#define         ATA_AHCI_P_IX_DP        0x00000020
#define         ATA_AHCI_P_IX_PC        0x00000040
#define         ATA_AHCI_P_IX_DI        0x00000080

#define         ATA_AHCI_P_IX_PRC       0x00400000
#define         ATA_AHCI_P_IX_IPM       0x00800000
#define         ATA_AHCI_P_IX_OF        0x01000000
#define         ATA_AHCI_P_IX_INF       0x04000000
#define         ATA_AHCI_P_IX_IF        0x08000000
#define         ATA_AHCI_P_IX_HBD       0x10000000
#define         ATA_AHCI_P_IX_HBF       0x20000000
#define         ATA_AHCI_P_IX_TFE       0x40000000
#define         ATA_AHCI_P_IX_CPD       0x80000000

#define ATA_AHCI_P_CMD                  0x118
#define         ATA_AHCI_P_CMD_ST       0x00000001
#define         ATA_AHCI_P_CMD_SUD      0x00000002
#define         ATA_AHCI_P_CMD_POD      0x00000004
#define         ATA_AHCI_P_CMD_CLO      0x00000008
#define         ATA_AHCI_P_CMD_FRE      0x00000010
#define         ATA_AHCI_P_CMD_CCS_MASK 0x00001f00
#define         ATA_AHCI_P_CMD_ISS      0x00002000
#define         ATA_AHCI_P_CMD_FR       0x00004000
#define         ATA_AHCI_P_CMD_CR       0x00008000
#define         ATA_AHCI_P_CMD_CPS      0x00010000
#define         ATA_AHCI_P_CMD_PMA      0x00020000
#define         ATA_AHCI_P_CMD_HPCP     0x00040000
#define         ATA_AHCI_P_CMD_ISP      0x00080000
#define         ATA_AHCI_P_CMD_CPD      0x00100000
#define         ATA_AHCI_P_CMD_ATAPI    0x01000000
#define         ATA_AHCI_P_CMD_DLAE     0x02000000
#define         ATA_AHCI_P_CMD_ALPE     0x04000000
#define         ATA_AHCI_P_CMD_ASP      0x08000000
#define         ATA_AHCI_P_CMD_ICC_MASK 0xf0000000
#define         ATA_AHCI_P_CMD_NOOP     0x00000000
#define         ATA_AHCI_P_CMD_ACTIVE   0x10000000
#define         ATA_AHCI_P_CMD_PARTIAL  0x20000000
#define         ATA_AHCI_P_CMD_SLUMPER  0x60000000

#define ATA_AHCI_P_TFD                  0x120
#define ATA_AHCI_P_SIG                  0x124
#define ATA_AHCI_P_SSTS                 0x128
#define ATA_AHCI_P_SCTL                 0x12c
#define ATA_AHCI_P_SERR                 0x130
#define ATA_AHCI_P_SACT                 0x134
#define ATA_AHCI_P_CI                   0x138

#define ATA_AHCI_CL_SIZE                32
#define ATA_AHCI_CL_OFFSET              0
#define ATA_AHCI_FB_OFFSET              1024
#define ATA_AHCI_CT_OFFSET              1024+256
#define ATA_AHCI_CT_SG_OFFSET           128
#define ATA_AHCI_CT_SIZE                256

/* DMA register defines */
#define ATA_DMA_ENTRIES                 256
#define ATA_DMA_EOT                     0x80000000

#define ATA_BMCMD_PORT                  17
#define         ATA_BMCMD_START_STOP    0x01
#define         ATA_BMCMD_WRITE_READ    0x08

#define ATA_BMDEVSPEC_0                 18
#define ATA_BMSTAT_PORT                 19
#define         ATA_BMSTAT_ACTIVE       0x01
#define         ATA_BMSTAT_ERROR        0x02
#define         ATA_BMSTAT_INTERRUPT    0x04
#define         ATA_BMSTAT_MASK         0x07
#define         ATA_BMSTAT_DMA_MASTER   0x20
#define         ATA_BMSTAT_DMA_SLAVE    0x40
#define         ATA_BMSTAT_DMA_SIMPLEX  0x80

#define ATA_BMDEVSPEC_1                 20
#define ATA_BMDTP_PORT                  21

#define ATA_IDX_ADDR                    22
#define ATA_IDX_DATA                    23
#define ATA_MAX_RES                     24

/* misc defines */
#define ATA_PRIMARY                     0x1f0
#define ATA_SECONDARY                   0x170
#define ATA_PC98_BANK                   0x432
#define ATA_IOSIZE                      0x08
#define ATA_PC98_IOSIZE                 0x10
#define ATA_CTLIOSIZE                   0x01
#define ATA_BMIOSIZE                    0x08
#define ATA_PC98_BANKIOSIZE             0x01
#define ATA_IOADDR_RID                  0
#define ATA_CTLADDR_RID                 1
#define ATA_BMADDR_RID                  0x20
#define ATA_PC98_CTLADDR_RID            8
#define ATA_PC98_BANKADDR_RID           9
#define ATA_IRQ_RID                     0
#define ATA_DEV(device)                 ((device == ATA_MASTER) ? 0 : 1)
#define ATA_CFA_MAGIC                   0x848A
#define ATAPI_MAGIC_LSB                 0x14
#define ATAPI_MAGIC_MSB                 0xeb
#define ATAPI_P_READ                    (ATA_S_DRQ | ATA_I_IN)
#define ATAPI_P_WRITE                   (ATA_S_DRQ)
#define ATAPI_P_CMDOUT                  (ATA_S_DRQ | ATA_I_CMD)
#define ATAPI_P_DONEDRQ                 (ATA_S_DRQ | ATA_I_CMD | ATA_I_IN)
#define ATAPI_P_DONE                    (ATA_I_CMD | ATA_I_IN)
#define ATAPI_P_ABORT                   0
#define ATA_INTR_FLAGS                  (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY)
#define ATA_OP_CONTINUES                0
#define ATA_OP_FINISHED                 1
#define ATA_MAX_28BIT_LBA               268435455

/* ATAPI request sense structure */
struct atapi_sense {
    u_int8_t    error_code      :7;             /* current or deferred errors */
    u_int8_t    valid           :1;             /* follows ATAPI spec */
    u_int8_t    segment;                        /* Segment number */
    u_int8_t    sense_key       :4;             /* sense key */
    u_int8_t    reserved2_4     :1;             /* reserved */
    u_int8_t    ili             :1;             /* incorrect length indicator */
    u_int8_t    eom             :1;             /* end of medium */
    u_int8_t    filemark        :1;             /* filemark */
    u_int32_t   cmd_info __packed;              /* cmd information */
    u_int8_t    sense_length;                   /* additional sense len (n-7) */
    u_int32_t   cmd_specific_info __packed;     /* additional cmd spec info */
    u_int8_t    asc;                            /* additional sense code */
    u_int8_t    ascq;                           /* additional sense code qual */
    u_int8_t    replaceable_unit_code;          /* replaceable unit code */
    u_int8_t    sk_specific     :7;             /* sense key specific */
    u_int8_t    sksv            :1;             /* sense key specific info OK */
    u_int8_t    sk_specific1;                   /* sense key specific */
    u_int8_t    sk_specific2;                   /* sense key specific */
};

/* structure used for composite atomic operations */
struct ata_composite {
    struct mtx          lock;                   /* control lock */
    u_int32_t           rd_needed;              /* needed read subdisks */
    u_int32_t           rd_done;                /* done read subdisks */
    u_int32_t           wr_needed;              /* needed write subdisks */
    u_int32_t           wr_depend;              /* write depends on subdisks */
    u_int32_t           wr_done;                /* done write subdisks */
    struct ata_request  *request[32];           /* size must match maps above */
    caddr_t             data_1;     
    caddr_t             data_2;     
};

/* structure used to queue an ATA/ATAPI request */
struct ata_request {
    device_t                    dev;            /* device handle */
    union {
	struct {
	    u_int8_t            command;        /* command reg */
	    u_int16_t           feature;        /* feature reg */
	    u_int16_t           count;          /* count reg */
	    u_int64_t           lba;            /* lba reg */
	} ata;
	struct {
	    u_int8_t            ccb[16];        /* ATAPI command block */
	    struct atapi_sense  sense_data;     /* ATAPI request sense data */
	    u_int8_t            sense_key;      /* ATAPI request sense key */
	    u_int8_t            sense_cmd;      /* ATAPI saved command */
	} atapi;
    } u;
    u_int32_t                   bytecount;      /* bytes to transfer */
    u_int32_t                   transfersize;   /* bytes pr transfer */
    caddr_t                     data;           /* pointer to data buf */
    int                         flags;
#define         ATA_R_CONTROL           0x00000001
#define         ATA_R_READ              0x00000002
#define         ATA_R_WRITE             0x00000004
#define         ATA_R_ATAPI             0x00000008
#define         ATA_R_DMA               0x00000010
#define         ATA_R_QUIET             0x00000020
#define         ATA_R_TIMEOUT           0x00000040

#define         ATA_R_ORDERED           0x00000100
#define         ATA_R_AT_HEAD           0x00000200
#define         ATA_R_REQUEUE           0x00000400
#define         ATA_R_THREAD            0x00000800
#define         ATA_R_DIRECT            0x00001000

#define         ATA_R_DEBUG             0x10000000

    u_int8_t                    status;         /* ATA status */
    u_int8_t                    error;          /* ATA error */
    u_int8_t                    dmastat;        /* DMA status */
    u_int32_t                   donecount;      /* bytes transferred */
    int                         result;         /* result error code */
    void                        (*callback)(struct ata_request *request);
    struct sema                 done;           /* request done sema */
    int                         retries;        /* retry count */
    int                         timeout;        /* timeout for this cmd */
    struct callout              callout;        /* callout management */
    struct task                 task;           /* task management */
    struct bio                  *bio;           /* bio for this request */
    int                         this;           /* this request ID */
    struct ata_composite        *composite;     /* for composite atomic ops */
    void                        *driver;        /* driver specific */
    TAILQ_ENTRY(ata_request)    chain;          /* list management */
};

/* define this for debugging request processing */
#if 0
#define ATA_DEBUG_RQ(request, string) \
    { \
    if (request->flags & ATA_R_DEBUG) \
	device_printf(request->dev, "req=%p %s " string "\n", \
		      request, ata_cmd2str(request)); \
    }
#else
#define ATA_DEBUG_RQ(request, string)
#endif


/* structure describing an ATA/ATAPI device */
struct ata_device {
    device_t                    dev;            /* device handle */
    int                         unit;           /* physical unit */
#define         ATA_MASTER              0x00
#define         ATA_SLAVE               0x10

    struct ata_params           param;          /* ata param structure */
    int                         mode;           /* current transfermode */
    u_int32_t                   max_iosize;     /* max IO size */
    int                         cmd;            /* last cmd executed */
    int                         flags;
#define         ATA_D_USE_CHS           0x0001
#define         ATA_D_MEDIA_CHANGED     0x0002
#define         ATA_D_ENC_PRESENT       0x0004
#define         ATA_D_48BIT_ACTIVE      0x0008
};

/* structure for holding DMA Physical Region Descriptors (PRD) entries */
struct ata_dma_prdentry {
    u_int32_t addr;
    u_int32_t count;
};  

/* structure used by the setprd function */
struct ata_dmasetprd_args {
    void *dmatab;
    int nsegs;
    int error;
};

/* structure holding DMA related information */
struct ata_dma {
    bus_dma_tag_t               dmatag;         /* parent DMA tag */
    bus_dma_tag_t               sg_tag;         /* SG list DMA tag */
    bus_dmamap_t                sg_map;         /* SG list DMA map */
    void                        *sg;            /* DMA transfer table */
    bus_addr_t                  sg_bus;         /* bus address of dmatab */
    bus_dma_tag_t               data_tag;       /* data DMA tag */
    bus_dmamap_t                data_map;       /* data DMA map */
    bus_dma_tag_t               work_tag;       /* workspace DMA tag */
    bus_dmamap_t                work_map;       /* workspace DMA map */
    u_int8_t                    *work;          /* workspace */
    bus_addr_t                  work_bus;       /* bus address of dmatab */

    u_int32_t                   alignment;      /* DMA engine alignment */
    u_int32_t                   boundary;       /* DMA engine boundary */
    u_int32_t                   max_iosize;     /* DMA engine max IO size */
    u_int32_t                   cur_iosize;     /* DMA engine current IO size */
    int                         flags;
#define ATA_DMA_READ                    0x01    /* transaction is a read */
#define ATA_DMA_LOADED                  0x02    /* DMA tables etc loaded */
#define ATA_DMA_ACTIVE                  0x04    /* DMA transfer in progress */

    void (*alloc)(device_t dev);
    void (*free)(device_t dev);
    void (*setprd)(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
    int (*load)(device_t dev, caddr_t data, int32_t count, int dir, void *addr, int *nsegs);
    int (*unload)(device_t dev);
    int (*start)(device_t dev);
    int (*stop)(device_t dev);
    void (*reset)(device_t dev);
};

/* structure holding lowlevel functions */
struct ata_lowlevel {
    int (*begin_transaction)(struct ata_request *request);
    int (*end_transaction)(struct ata_request *request);
    int (*command)(struct ata_request *request);
};

/* structure holding resources for an ATA channel */
struct ata_resource {
    struct resource             *res;
    int                         offset;
};

/* structure describing an ATA channel */
struct ata_channel {
    device_t                    dev;            /* device handle */
    int                         unit;           /* physical channel */
    struct ata_resource         r_io[ATA_MAX_RES];/* I/O resources */
    struct resource             *r_irq;         /* interrupt of this channel */
    void                        *ih;            /* interrupt handle */
    struct ata_lowlevel         hw;             /* lowlevel HW functions */
    struct ata_dma              *dma;           /* DMA data / functions */
    int                         flags;          /* channel flags */
#define         ATA_NO_SLAVE            0x01
#define         ATA_USE_16BIT           0x02
#define         ATA_ATAPI_DMA_RO        0x04

    int                         devices;        /* what is present */
#define         ATA_ATA_MASTER          0x01
#define         ATA_ATA_SLAVE           0x02
#define         ATA_ATAPI_MASTER        0x04
#define         ATA_ATAPI_SLAVE         0x08

    struct mtx                  state_mtx;      /* state lock */
    int                         state;          /* ATA channel state */
#define         ATA_IDLE                0x0000
#define         ATA_ACTIVE              0x0001
#define         ATA_STALL_QUEUE         0x0002

    struct mtx                  queue_mtx;      /* queue lock */
    TAILQ_HEAD(, ata_request)   ata_queue;      /* head of ATA queue */
    struct ata_request          *freezepoint;   /* composite freezepoint */
    struct ata_request          *running;       /* currently running request */
};

/* disk bay/enclosure related */
#define         ATA_LED_OFF             0x00
#define         ATA_LED_RED             0x01
#define         ATA_LED_GREEN           0x02
#define         ATA_LED_ORANGE          0x03
#define         ATA_LED_MASK            0x03

/* externs */
extern int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data);
extern devclass_t ata_devclass;
extern int ata_wc;
 
/* public prototypes */
/* ata-all.c: */
int ata_probe(device_t dev);
int ata_attach(device_t dev);
int ata_detach(device_t dev);
int ata_reinit(device_t dev);
int ata_suspend(device_t dev);
int ata_resume(device_t dev);
int ata_device_ioctl(device_t dev, u_long cmd, caddr_t data);
int ata_identify(device_t dev);
void ata_default_registers(device_t dev);
u_int8_t ata_modify_if_48bit(struct ata_request *request);
void ata_udelay(int interval);
char *ata_mode2str(int mode);
int ata_pmode(struct ata_params *ap);
int ata_wmode(struct ata_params *ap);
int ata_umode(struct ata_params *ap);
int ata_limit_mode(device_t dev, int mode, int maxmode);

/* ata-queue.c: */
int ata_controlcmd(device_t dev, u_int8_t command, u_int16_t feature, u_int64_t lba, u_int16_t count);
int ata_atapicmd(device_t dev, u_int8_t *ccb, caddr_t data, int count, int flags, int timeout);
void ata_queue_request(struct ata_request *request);
void ata_start(device_t dev);
void ata_finish(struct ata_request *request);
void ata_timeout(struct ata_request *);
void ata_catch_inflight(device_t dev);
void ata_fail_requests(device_t dev);
char *ata_cmd2str(struct ata_request *request);

/* ata-lowlevel.c: */
void ata_generic_hw(device_t dev);
void ata_generic_reset(device_t dev);
int ata_generic_command(struct ata_request *request);

/* macros for alloc/free of struct ata_request */
extern uma_zone_t ata_request_zone;
#define ata_alloc_request() uma_zalloc(ata_request_zone, M_NOWAIT | M_ZERO)
#define ata_free_request(request) uma_zfree(ata_request_zone, request)

/* macros for alloc/free of struct ata_composite */
extern uma_zone_t ata_composite_zone;
#define ata_alloc_composite() uma_zalloc(ata_composite_zone, M_NOWAIT | M_ZERO)
#define ata_free_composite(composite) uma_zfree(ata_composite_zone, composite)

MALLOC_DECLARE(M_ATA);

/* misc newbus defines */
#define GRANDPARENT(dev)        device_get_parent(device_get_parent(dev))

/* macros to hide busspace uglyness */
#define ATA_INB(res, offset) \
	bus_space_read_1(rman_get_bustag((res)), \
			 rman_get_bushandle((res)), (offset))

#define ATA_INW(res, offset) \
	bus_space_read_2(rman_get_bustag((res)), \
			 rman_get_bushandle((res)), (offset))
#define ATA_INL(res, offset) \
	bus_space_read_4(rman_get_bustag((res)), \
			 rman_get_bushandle((res)), (offset))
#define ATA_INSW(res, offset, addr, count) \
	bus_space_read_multi_2(rman_get_bustag((res)), \
			       rman_get_bushandle((res)), \
			       (offset), (addr), (count))
#define ATA_INSW_STRM(res, offset, addr, count) \
	bus_space_read_multi_stream_2(rman_get_bustag((res)), \
				      rman_get_bushandle((res)), \
				      (offset), (addr), (count))
#define ATA_INSL(res, offset, addr, count) \
	bus_space_read_multi_4(rman_get_bustag((res)), \
			       rman_get_bushandle((res)), \
			       (offset), (addr), (count))
#define ATA_INSL_STRM(res, offset, addr, count) \
	bus_space_read_multi_stream_4(rman_get_bustag((res)), \
				      rman_get_bushandle((res)), \
				      (offset), (addr), (count))
#define ATA_OUTB(res, offset, value) \
	bus_space_write_1(rman_get_bustag((res)), \
			  rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTW(res, offset, value) \
	bus_space_write_2(rman_get_bustag((res)), \
			  rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTL(res, offset, value) \
	bus_space_write_4(rman_get_bustag((res)), \
			  rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTSW(res, offset, addr, count) \
	bus_space_write_multi_2(rman_get_bustag((res)), \
				rman_get_bushandle((res)), \
				(offset), (addr), (count))
#define ATA_OUTSW_STRM(res, offset, addr, count) \
	bus_space_write_multi_stream_2(rman_get_bustag((res)), \
				       rman_get_bushandle((res)), \
				       (offset), (addr), (count))
#define ATA_OUTSL(res, offset, addr, count) \
	bus_space_write_multi_4(rman_get_bustag((res)), \
				rman_get_bushandle((res)), \
				(offset), (addr), (count))
#define ATA_OUTSL_STRM(res, offset, addr, count) \
	bus_space_write_multi_stream_4(rman_get_bustag((res)), \
				       rman_get_bushandle((res)), \
				       (offset), (addr), (count))

#define ATA_IDX_INB(ch, idx) \
	ATA_INB(ch->r_io[idx].res, ch->r_io[idx].offset)

#define ATA_IDX_INW(ch, idx) \
	ATA_INW(ch->r_io[idx].res, ch->r_io[idx].offset)

#define ATA_IDX_INL(ch, idx) \
	ATA_INL(ch->r_io[idx].res, ch->r_io[idx].offset)

#define ATA_IDX_INSW(ch, idx, addr, count) \
	ATA_INSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_INSW_STRM(ch, idx, addr, count) \
	ATA_INSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_INSL(ch, idx, addr, count) \
	ATA_INSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_INSL_STRM(ch, idx, addr, count) \
	ATA_INSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_OUTB(ch, idx, value) \
	ATA_OUTB(ch->r_io[idx].res, ch->r_io[idx].offset, value)

#define ATA_IDX_OUTW(ch, idx, value) \
	ATA_OUTW(ch->r_io[idx].res, ch->r_io[idx].offset, value)

#define ATA_IDX_OUTL(ch, idx, value) \
	ATA_OUTL(ch->r_io[idx].res, ch->r_io[idx].offset, value)

#define ATA_IDX_OUTSW(ch, idx, addr, count) \
	ATA_OUTSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_OUTSW_STRM(ch, idx, addr, count) \
	ATA_OUTSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_OUTSL(ch, idx, addr, count) \
	ATA_OUTSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

#define ATA_IDX_OUTSL_STRM(ch, idx, addr, count) \
	ATA_OUTSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
+								/*-
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								 * Copyright (c) 1998 - 2005 S<EFBFBD>ren Schmidt <sos@FreeBSD.org>
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
+								 * 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 ``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 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.
 								 *
-												$Id$ -> $FreeBSD$

											
										
										
											1999-08-28 01:08:13 +00:00
+								 * $FreeBSD$
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
+								 */
 								/* ATA register defines */
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_DATA                        0       /* (RW) data */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_FEATURE                     1       /* (W) feature */
 								#define         ATA_F_DMA               0x01    /* enable DMA */
 								#define         ATA_F_OVL               0x02    /* enable overlap */
 								#define ATA_COUNT                       2       /* (W) sector count */
 								#define ATA_SECTOR                      3       /* (RW) sector # */
 								#define ATA_CYL_LSB                     4       /* (RW) cylinder# LSB */
 								#define ATA_CYL_MSB                     5       /* (RW) cylinder# MSB */
 								#define ATA_DRIVE                       6       /* (W) Sector/Drive/Head */
 								#define         ATA_D_LBA               0x40    /* use LBA addressing */
 								#define         ATA_D_IBM               0xa0    /* 512 byte sectors, ECC */
 								#define ATA_COMMAND                     7       /* (W) command */
 								#define ATA_ERROR                       8       /* (R) error */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_E_ILI               0x01    /* illegal length */
 								#define         ATA_E_NM                0x02    /* no media */
 								#define         ATA_E_ABORT             0x04    /* command aborted */
 								#define         ATA_E_MCR               0x08    /* media change request */
 								#define         ATA_E_IDNF              0x10    /* ID not found */
 								#define         ATA_E_MC                0x20    /* media changed */
 								#define         ATA_E_UNC               0x40    /* uncorrectable data */
 								#define         ATA_E_ICRC              0x80    /* UDMA crc error */
 								#define         ATA_E_MASK              0x0f    /* error mask */
 								#define         ATA_SK_MASK             0xf0    /* sense key mask */
 								#define         ATA_SK_NO_SENSE         0x00    /* no specific sense key info */
 								#define         ATA_SK_RECOVERED_ERROR  0x10    /* command OK, data recovered */
 								#define         ATA_SK_NOT_READY        0x20    /* no access to drive */
 								#define         ATA_SK_MEDIUM_ERROR     0x30    /* non-recovered data error */
 								#define         ATA_SK_HARDWARE_ERROR   0x40    /* non-recoverable HW failure */
 								#define         ATA_SK_ILLEGAL_REQUEST  0x50    /* invalid command param(s) */
 								#define         ATA_SK_UNIT_ATTENTION   0x60    /* media changed */
 								#define         ATA_SK_DATA_PROTECT     0x70    /* write protect */
 								#define         ATA_SK_BLANK_CHECK      0x80    /* blank check */
 								#define         ATA_SK_VENDOR_SPECIFIC  0x90    /* vendor specific skey */
 								#define         ATA_SK_COPY_ABORTED     0xa0    /* copy aborted */
 								#define         ATA_SK_ABORTED_COMMAND  0xb0    /* command aborted, try again */
 								#define         ATA_SK_EQUAL            0xc0    /* equal */
 								#define         ATA_SK_VOLUME_OVERFLOW  0xd0    /* volume overflow */
 								#define         ATA_SK_MISCOMPARE       0xe0    /* data dont match the medium */
 								#define         ATA_SK_RESERVED         0xf0
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_IREASON                     9       /* (R) interrupt reason */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_I_CMD               0x01    /* cmd (1) | data (0) */
 								#define         ATA_I_IN                0x02    /* read (1) | write (0) */
 								#define         ATA_I_RELEASE           0x04    /* released bus (1) */
 								#define         ATA_I_TAGMASK           0xf8    /* tag mask */
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_STATUS                      10      /* (R) status */
 								#define ATA_ALTSTAT                     11      /* (R) alternate status */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_S_ERROR             0x01    /* error */
 								#define         ATA_S_INDEX             0x02    /* index */
 								#define         ATA_S_CORR              0x04    /* data corrected */
 								#define         ATA_S_DRQ               0x08    /* data request */
 								#define         ATA_S_DSC               0x10    /* drive seek completed */
 								#define         ATA_S_SERVICE           0x10    /* drive needs service */
 								#define         ATA_S_DWF               0x20    /* drive write fault */
 								#define         ATA_S_DMA               0x20    /* DMA ready */
 								#define         ATA_S_READY             0x40    /* drive ready */
 								#define         ATA_S_BUSY              0x80    /* busy */
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_CONTROL                     12      /* (W) control */
 								#define ATA_CTLOFFSET                   0x206   /* control register offset */
 								#define ATA_PCCARD_CTLOFFSET            0x0e    /* do for PCCARD devices */
 								#define ATA_PC98_CTLOFFSET              0x10c   /* do for PC98 devices */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_A_IDS               0x02    /* disable interrupts */
 								#define         ATA_A_RESET             0x04    /* RESET controller */
 								#define         ATA_A_4BIT              0x08    /* 4 head bits */
 								#define         ATA_A_HOB               0x80    /* High Order Byte enable */
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+								/* SATA register defines */
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								#define ATA_SSTATUS                     13
 								#define         ATA_SS_DET_MASK         0x0000000f
 								#define         ATA_SS_DET_NO_DEVICE    0x00000000
 								#define         ATA_SS_DET_DEV_PRESENT  0x00000001
 								#define         ATA_SS_DET_PHY_ONLINE   0x00000003
 								#define         ATA_SS_DET_PHY_OFFLINE  0x00000004
 								#define         ATA_SS_SPD_MASK         0x000000f0
 								#define         ATA_SS_SPD_NO_SPEED     0x00000000
 								#define         ATA_SS_SPD_GEN1         0x00000010
 								#define         ATA_SS_SPD_GEN2         0x00000020
 								#define         ATA_SS_IPM_MASK         0x00000f00
 								#define         ATA_SS_IPM_NO_DEVICE    0x00000000
 								#define         ATA_SS_IPM_ACTIVE       0x00000100
 								#define         ATA_SS_IPM_PARTIAL      0x00000200
 								#define         ATA_SS_IPM_SLUMBER      0x00000600
 								#define         ATA_SS_CONWELL_MASK \
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+										    (ATA_SS_DET_MASK|ATA_SS_SPD_MASK|ATA_SS_IPM_MASK)
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								#define         ATA_SS_CONWELL_GEN1 \
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+										    (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN1|ATA_SS_IPM_ACTIVE)
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								#define         ATA_SS_CONWELL_GEN2 \
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+										    (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN2|ATA_SS_IPM_ACTIVE)
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								#define ATA_SERROR                      14
 								#define         ATA_SE_DATA_CORRECTED   0x00000001
 								#define         ATA_SE_COMM_CORRECTED   0x00000002
 								#define         ATA_SE_DATA_ERR         0x00000100
 								#define         ATA_SE_COMM_ERR         0x00000200
 								#define         ATA_SE_PROT_ERR         0x00000400
 								#define         ATA_SE_HOST_ERR         0x00000800
 								#define         ATA_SE_PHY_CHANGED      0x00010000
 								#define         ATA_SE_PHY_IERROR       0x00020000
 								#define         ATA_SE_COMM_WAKE        0x00040000
 								#define         ATA_SE_DECODE_ERR       0x00080000
 								#define         ATA_SE_PARITY_ERR       0x00100000
 								#define         ATA_SE_CRC_ERR          0x00200000
 								#define         ATA_SE_HANDSHAKE_ERR    0x00400000
 								#define         ATA_SE_LINKSEQ_ERR      0x00800000
 								#define         ATA_SE_TRANSPORT_ERR    0x01000000
 								#define         ATA_SE_UNKNOWN_FIS      0x02000000
 								#define ATA_SCONTROL                    15
 								#define         ATA_SC_DET_MASK         0x0000000f
 								#define         ATA_SC_DET_IDLE         0x00000000
 								#define         ATA_SC_DET_RESET        0x00000001
 								#define         ATA_SC_DET_DISABLE      0x00000004
 								#define         ATA_SC_SPD_MASK         0x000000f0
 								#define         ATA_SC_SPD_NO_SPEED     0x00000000
 								#define         ATA_SC_SPD_SPEED_GEN1   0x00000010
 								#define         ATA_SC_SPD_SPEED_GEN2   0x00000020
 								#define         ATA_SC_IPM_MASK         0x00000f00
 								#define         ATA_SC_IPM_NONE         0x00000000
 								#define         ATA_SC_IPM_DIS_PARTIAL  0x00000100
 								#define         ATA_SC_IPM_DIS_SLUMBER  0x00000200
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
-												Change the way ioctls are issue to ATA.
The most prominent part is that its now possible to issue ata_requests
directly to say acd0, instead of going through the cumbersome /dev/ata
device.

											
										
										
											2005-05-16 13:07:27 +00:00
+								#define ATA_SACTIVE                     16
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
 								/* SATA AHCI v1.0 register defines */
-												Change the way ioctls are issue to ATA.
The most prominent part is that its now possible to issue ata_requests
directly to say acd0, instead of going through the cumbersome /dev/ata
device.

											
										
										
											2005-05-16 13:07:27 +00:00
+								#define ATA_AHCI_CAP                    0x00
 								#define         ATA_AHCI_NPMASK         0x1f
 								#define ATA_AHCI_GHC                    0x04
 								#define         ATA_AHCI_GHC_AE         0x80000000
 								#define         ATA_AHCI_GHC_IE         0x00000002
 								#define         ATA_AHCI_GHC_HR         0x80000001
 								#define ATA_AHCI_IS                     0x08
 								#define ATA_AHCI_PI                     0x0c
 								#define ATA_AHCI_VS                     0x10
 								#define ATA_AHCI_OFFSET                 0x80
 								#define ATA_AHCI_P_CLB                  0x100
 								#define ATA_AHCI_P_CLBU                 0x104
 								#define ATA_AHCI_P_FB                   0x108
 								#define ATA_AHCI_P_FBU                  0x10c
 								#define ATA_AHCI_P_IS                   0x110
 								#define ATA_AHCI_P_IE                   0x114
 								#define         ATA_AHCI_P_IX_DHR       0x00000001
 								#define         ATA_AHCI_P_IX_PS        0x00000002
 								#define         ATA_AHCI_P_IX_DS        0x00000004
 								#define         ATA_AHCI_P_IX_SDB       0x00000008
 								#define         ATA_AHCI_P_IX_UF        0x00000010
 								#define         ATA_AHCI_P_IX_DP        0x00000020
 								#define         ATA_AHCI_P_IX_PC        0x00000040
 								#define         ATA_AHCI_P_IX_DI        0x00000080
 								#define         ATA_AHCI_P_IX_PRC       0x00400000
 								#define         ATA_AHCI_P_IX_IPM       0x00800000
 								#define         ATA_AHCI_P_IX_OF        0x01000000
 								#define         ATA_AHCI_P_IX_INF       0x04000000
 								#define         ATA_AHCI_P_IX_IF        0x08000000
 								#define         ATA_AHCI_P_IX_HBD       0x10000000
 								#define         ATA_AHCI_P_IX_HBF       0x20000000
 								#define         ATA_AHCI_P_IX_TFE       0x40000000
 								#define         ATA_AHCI_P_IX_CPD       0x80000000
 								#define ATA_AHCI_P_CMD                  0x118
 								#define         ATA_AHCI_P_CMD_ST       0x00000001
 								#define         ATA_AHCI_P_CMD_SUD      0x00000002
 								#define         ATA_AHCI_P_CMD_POD      0x00000004
 								#define         ATA_AHCI_P_CMD_CLO      0x00000008
 								#define         ATA_AHCI_P_CMD_FRE      0x00000010
 								#define         ATA_AHCI_P_CMD_CCS_MASK 0x00001f00
 								#define         ATA_AHCI_P_CMD_ISS      0x00002000
 								#define         ATA_AHCI_P_CMD_FR       0x00004000
 								#define         ATA_AHCI_P_CMD_CR       0x00008000
 								#define         ATA_AHCI_P_CMD_CPS      0x00010000
 								#define         ATA_AHCI_P_CMD_PMA      0x00020000
 								#define         ATA_AHCI_P_CMD_HPCP     0x00040000
 								#define         ATA_AHCI_P_CMD_ISP      0x00080000
 								#define         ATA_AHCI_P_CMD_CPD      0x00100000
 								#define         ATA_AHCI_P_CMD_ATAPI    0x01000000
 								#define         ATA_AHCI_P_CMD_DLAE     0x02000000
 								#define         ATA_AHCI_P_CMD_ALPE     0x04000000
 								#define         ATA_AHCI_P_CMD_ASP      0x08000000
 								#define         ATA_AHCI_P_CMD_ICC_MASK 0xf0000000
 								#define         ATA_AHCI_P_CMD_NOOP     0x00000000
 								#define         ATA_AHCI_P_CMD_ACTIVE   0x10000000
 								#define         ATA_AHCI_P_CMD_PARTIAL  0x20000000
 								#define         ATA_AHCI_P_CMD_SLUMPER  0x60000000
 								#define ATA_AHCI_P_TFD                  0x120
 								#define ATA_AHCI_P_SIG                  0x124
 								#define ATA_AHCI_P_SSTS                 0x128
 								#define ATA_AHCI_P_SCTL                 0x12c
 								#define ATA_AHCI_P_SERR                 0x130
 								#define ATA_AHCI_P_SACT                 0x134
 								#define ATA_AHCI_P_CI                   0x138
 								#define ATA_AHCI_CL_SIZE                32
 								#define ATA_AHCI_CL_OFFSET              0
 								#define ATA_AHCI_FB_OFFSET              1024
 								#define ATA_AHCI_CT_OFFSET              1024+256
 								#define ATA_AHCI_CT_SG_OFFSET           128
 								#define ATA_AHCI_CT_SIZE                256
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+								/* DMA register defines */
 								#define ATA_DMA_ENTRIES                 256
 								#define ATA_DMA_EOT                     0x80000000
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
+								#define ATA_BMCMD_PORT                  17
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+								#define         ATA_BMCMD_START_STOP    0x01
 								#define         ATA_BMCMD_WRITE_READ    0x08
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
+								#define ATA_BMDEVSPEC_0                 18
 								#define ATA_BMSTAT_PORT                 19
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+								#define         ATA_BMSTAT_ACTIVE       0x01
 								#define         ATA_BMSTAT_ERROR        0x02
 								#define         ATA_BMSTAT_INTERRUPT    0x04
 								#define         ATA_BMSTAT_MASK         0x07
 								#define         ATA_BMSTAT_DMA_MASTER   0x20
 								#define         ATA_BMSTAT_DMA_SLAVE    0x40
 								#define         ATA_BMSTAT_DMA_SIMPLEX  0x80
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
+								#define ATA_BMDEVSPEC_1                 20
 								#define ATA_BMDTP_PORT                  21
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
-												Add support for AHCI compliant ATA devices.
For now just support the Intel ICH6 as that the HW at hand.

Sponsored by:	pair.com

											
										
										
											2005-05-11 16:10:08 +00:00
+								#define ATA_IDX_ADDR                    22
 								#define ATA_IDX_DATA                    23
 								#define ATA_MAX_RES                     24
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
-												Fourth update to the new ATA/ATAPI driver:

Well, better late than newer, but things has been hectic
around here, sorry for the long delay.

DMA support has been added to the ATA disk driver.
This only works on Intel PIIX3/4, Acer Aladdin and Promise controllers.
The promise support works without the BIOS on the board,
and timing modes are set to support up to UDMA speed. This
solves the problems with having more than one promise controller
in the same system.
There is support for "generic" DMA, that might work on other
controllers, but now you have been warned :)
More chipset specific code will come soon, I have to find testers
with the approbiate HW, more on that when I have it ready.

The system now uses its own major numbers, please run MAKEDEV
with the devices you need (ad?, acd?, afd?, ast?).
For now the disk driver will also attach to the old wd major
so one can at least boot without this step, but be warned, this
will eventually go away. The bootblocks will have to be changed
before one can boot directly from an "ad" device though.

Fixed problems:

    All known hang problems should be solved
	The probe code has been sligthly changed, this should solve
	the reports I have lying around (I hope).

    Hangs when accessing ata & atapi device on the same channel simultaniously.
	A real braino in ata_start caused this, fixed.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, agaiin you have been warned :)

But please tell me how it works for you!

Enjoy!

-Søren

											
										
										
											1999-03-28 18:57:20 +00:00
+								/* misc defines */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define ATA_PRIMARY                     0x1f0
 								#define ATA_SECONDARY                   0x170
 								#define ATA_PC98_BANK                   0x432
 								#define ATA_IOSIZE                      0x08
 								#define ATA_PC98_IOSIZE                 0x10
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_CTLIOSIZE                   0x01
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define ATA_BMIOSIZE                    0x08
 								#define ATA_PC98_BANKIOSIZE             0x01
 								#define ATA_IOADDR_RID                  0
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_CTLADDR_RID                 1
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define ATA_BMADDR_RID                  0x20
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#define ATA_PC98_CTLADDR_RID            8
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define ATA_PC98_BANKADDR_RID           9
 								#define ATA_IRQ_RID                     0
 								#define ATA_DEV(device)                 ((device == ATA_MASTER) ? 0 : 1)
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								#define ATA_CFA_MAGIC                   0x848A
-												Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.

											
										
										
											2005-04-08 09:37:47 +00:00
+								#define ATAPI_MAGIC_LSB                 0x14
 								#define ATAPI_MAGIC_MSB                 0xeb
 								#define ATAPI_P_READ                    (ATA_S_DRQ | ATA_I_IN)
 								#define ATAPI_P_WRITE                   (ATA_S_DRQ)
 								#define ATAPI_P_CMDOUT                  (ATA_S_DRQ | ATA_I_CMD)
 								#define ATAPI_P_DONEDRQ                 (ATA_S_DRQ | ATA_I_CMD | ATA_I_IN)
 								#define ATAPI_P_DONE                    (ATA_I_CMD | ATA_I_IN)
 								#define ATAPI_P_ABORT                   0
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define ATA_INTR_FLAGS                  (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY)
 								#define ATA_OP_CONTINUES                0
 								#define ATA_OP_FINISHED                 1
 								#define ATA_MAX_28BIT_LBA               268435455
-												Compensate for off by one bugs in disk firmware for 48BIT addressing cutover.

											
										
										
											2004-12-09 07:31:06 +00:00
-												Issue a request sense command automagically when ATAPI commands fail
with a valid sense key.

											
										
										
											2004-02-28 17:47:27 +00:00
+								/* ATAPI request sense structure */
 								struct atapi_sense {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    u_int8_t    error_code      :7;             /* current or deferred errors */
 								    u_int8_t    valid           :1;             /* follows ATAPI spec */
 								    u_int8_t    segment;                        /* Segment number */
 								    u_int8_t    sense_key       :4;             /* sense key */
 								    u_int8_t    reserved2_4     :1;             /* reserved */
 								    u_int8_t    ili             :1;             /* incorrect length indicator */
 								    u_int8_t    eom             :1;             /* end of medium */
 								    u_int8_t    filemark        :1;             /* filemark */
 								    u_int32_t   cmd_info __packed;              /* cmd information */
 								    u_int8_t    sense_length;                   /* additional sense len (n-7) */
 								    u_int32_t   cmd_specific_info __packed;     /* additional cmd spec info */
 								    u_int8_t    asc;                            /* additional sense code */
 								    u_int8_t    ascq;                           /* additional sense code qual */
 								    u_int8_t    replaceable_unit_code;          /* replaceable unit code */
 								    u_int8_t    sk_specific     :7;             /* sense key specific */
 								    u_int8_t    sksv            :1;             /* sense key specific info OK */
 								    u_int8_t    sk_specific1;                   /* sense key specific */
 								    u_int8_t    sk_specific2;                   /* sense key specific */
-												Issue a request sense command automagically when ATAPI commands fail
with a valid sense key.

											
										
										
											2004-02-28 17:47:27 +00:00
+								};
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								/* structure used for composite atomic operations */
 								struct ata_composite {
 								    struct mtx          lock;                   /* control lock */
 								    u_int32_t           rd_needed;              /* needed read subdisks */
 								    u_int32_t           rd_done;                /* done read subdisks */
 								    u_int32_t           wr_needed;              /* needed write subdisks */
 								    u_int32_t           wr_depend;              /* write depends on subdisks */
 								    u_int32_t           wr_done;                /* done write subdisks */
 								    struct ata_request  *request[32];           /* size must match maps above */
 								    caddr_t             data_1;
 								    caddr_t             data_2;
 								};
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								/* structure used to queue an ATA/ATAPI request */
 								struct ata_request {
 								    device_t                    dev;            /* device handle */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								    union {
 									struct {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+									    u_int8_t            command;        /* command reg */
-												Read back the real taskfile register values when in 48BIT mode.

											
										
										
											2005-04-14 08:48:45 +00:00
+									    u_int16_t           feature;        /* feature reg */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+									    u_int16_t           count;          /* count reg */
 									    u_int64_t           lba;            /* lba reg */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+									} ata;
 									struct {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+									    u_int8_t            ccb[16];        /* ATAPI command block */
 									    struct atapi_sense  sense_data;     /* ATAPI request sense data */
 									    u_int8_t            sense_key;      /* ATAPI request sense key */
 									    u_int8_t            sense_cmd;      /* ATAPI saved command */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+									} atapi;
 								    } u;
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    u_int32_t                   bytecount;      /* bytes to transfer */
 								    u_int32_t                   transfersize;   /* bytes pr transfer */
 								    caddr_t                     data;           /* pointer to data buf */
 								    int                         flags;
 								#define         ATA_R_CONTROL           0x00000001
 								#define         ATA_R_READ              0x00000002
 								#define         ATA_R_WRITE             0x00000004
-												Rehash the timeout code to make it more simple.
This also removes the warning timeout on the taskqueues stalling as
I'm tired of getting ATA error reports for problems in other parts ;)
Misc cosmetic and comment cleanups now we are here.

											
										
										
											2005-04-21 11:13:39 +00:00
+								#define         ATA_R_ATAPI             0x00000008
 								#define         ATA_R_DMA               0x00000010
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_R_QUIET             0x00000020
-												Rehash the timeout code to make it more simple.
This also removes the warning timeout on the taskqueues stalling as
I'm tired of getting ATA error reports for problems in other parts ;)
Misc cosmetic and comment cleanups now we are here.

											
										
										
											2005-04-21 11:13:39 +00:00
+								#define         ATA_R_TIMEOUT           0x00000040
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
 								#define         ATA_R_ORDERED           0x00000100
 								#define         ATA_R_AT_HEAD           0x00000200
 								#define         ATA_R_REQUEUE           0x00000400
 								#define         ATA_R_THREAD            0x00000800
 								#define         ATA_R_DIRECT            0x00001000
 								#define         ATA_R_DEBUG             0x10000000
 								    u_int8_t                    status;         /* ATA status */
 								    u_int8_t                    error;          /* ATA error */
 								    u_int8_t                    dmastat;        /* DMA status */
 								    u_int32_t                   donecount;      /* bytes transferred */
 								    int                         result;         /* result error code */
 								    void                        (*callback)(struct ata_request *request);
 								    struct sema                 done;           /* request done sema */
 								    int                         retries;        /* retry count */
 								    int                         timeout;        /* timeout for this cmd */
 								    struct callout              callout;        /* callout management */
 								    struct task                 task;           /* task management */
 								    struct bio                  *bio;           /* bio for this request */
 								    int                         this;           /* this request ID */
 								    struct ata_composite        *composite;     /* for composite atomic ops */
 								    void                        *driver;        /* driver specific */
 								    TAILQ_ENTRY(ata_request)    chain;          /* list management */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								};
-												Fourth update to the new ATA/ATAPI driver:

Well, better late than newer, but things has been hectic
around here, sorry for the long delay.

DMA support has been added to the ATA disk driver.
This only works on Intel PIIX3/4, Acer Aladdin and Promise controllers.
The promise support works without the BIOS on the board,
and timing modes are set to support up to UDMA speed. This
solves the problems with having more than one promise controller
in the same system.
There is support for "generic" DMA, that might work on other
controllers, but now you have been warned :)
More chipset specific code will come soon, I have to find testers
with the approbiate HW, more on that when I have it ready.

The system now uses its own major numbers, please run MAKEDEV
with the devices you need (ad?, acd?, afd?, ast?).
For now the disk driver will also attach to the old wd major
so one can at least boot without this step, but be warned, this
will eventually go away. The bootblocks will have to be changed
before one can boot directly from an "ad" device though.

Fixed problems:

    All known hang problems should be solved
	The probe code has been sligthly changed, this should solve
	the reports I have lying around (I hope).

    Hangs when accessing ata & atapi device on the same channel simultaniously.
	A real braino in ata_start caused this, fixed.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, agaiin you have been warned :)

But please tell me how it works for you!

Enjoy!

-Søren

											
										
										
											1999-03-28 18:57:20 +00:00
-												Overhaul of the timeout/reinit framework. This should clear up most
of the leftovers from the old version that really doesn't work anymore.

Add a reset function for host-end of the ATA channel. This is needed
for the SiI3112 in order to whack it back to reality if a device
locks up the SATA interface (thereby preventing that we can reset the
device). The result is that ATA now recovers from the timeouts that
happens with the SiI3112A and more or less all disks based on old
PATA electronics with a Marvell PATA->SATA converter. This includes
lots of the popular SATA dongles and the WDC Raptor disks..

											
										
										
											2004-01-11 22:08:34 +00:00
+								/* define this for debugging request processing */
-												Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.

											
										
										
											2005-04-06 10:22:56 +00:00
+								#if 0
-												Overhaul of the timeout/reinit framework. This should clear up most
of the leftovers from the old version that really doesn't work anymore.

Add a reset function for host-end of the ATA channel. This is needed
for the SiI3112 in order to whack it back to reality if a device
locks up the SATA interface (thereby preventing that we can reset the
device). The result is that ATA now recovers from the timeouts that
happens with the SiI3112A and more or less all disks based on old
PATA electronics with a Marvell PATA->SATA converter. This includes
lots of the popular SATA dongles and the WDC Raptor disks..

											
										
										
											2004-01-11 22:08:34 +00:00
+								#define ATA_DEBUG_RQ(request, string) \
 								    { \
 								    if (request->flags & ATA_R_DEBUG) \
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+									device_printf(request->dev, "req=%p %s " string "\n", \
 										      request, ata_cmd2str(request)); \
-												Overhaul of the timeout/reinit framework. This should clear up most
of the leftovers from the old version that really doesn't work anymore.

Add a reset function for host-end of the ATA channel. This is needed
for the SiI3112 in order to whack it back to reality if a device
locks up the SATA interface (thereby preventing that we can reset the
device). The result is that ATA now recovers from the timeouts that
happens with the SiI3112A and more or less all disks based on old
PATA electronics with a Marvell PATA->SATA converter. This includes
lots of the popular SATA dongles and the WDC Raptor disks..

											
										
										
											2004-01-11 22:08:34 +00:00
+								    }
 								#else
 								#define ATA_DEBUG_RQ(request, string)
 								#endif
-												Major update of the ATA RAID code, part 1:

Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.

											
										
										
											2002-02-04 19:23:40 +00:00
+								/* structure describing an ATA/ATAPI device */
 								struct ata_device {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    device_t                    dev;            /* device handle */
 								    int                         unit;           /* physical unit */
 								#define         ATA_MASTER              0x00
 								#define         ATA_SLAVE               0x10
 								    struct ata_params           param;          /* ata param structure */
 								    int                         mode;           /* current transfermode */
 								    u_int32_t                   max_iosize;     /* max IO size */
 								    int                         cmd;            /* last cmd executed */
 								    int                         flags;
 								#define         ATA_D_USE_CHS           0x0001
 								#define         ATA_D_MEDIA_CHANGED     0x0002
 								#define         ATA_D_ENC_PRESENT       0x0004
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								#define         ATA_D_48BIT_ACTIVE      0x0008
-												Major update of the ATA RAID code, part 1:

Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.

											
										
										
											2002-02-04 19:23:40 +00:00
+								};
-												Allow the use of a supplied function to set the PRD table. This is
needed for new chips that supports 64bit addressing.

											
										
										
											2004-08-13 08:14:27 +00:00
+								/* structure for holding DMA Physical Region Descriptors (PRD) entries */
 								struct ata_dma_prdentry {
 								    u_int32_t addr;
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								    u_int32_t count;
 								};
-												Allow the use of a supplied function to set the PRD table. This is
needed for new chips that supports 64bit addressing.

											
										
										
											2004-08-13 08:14:27 +00:00
+								/* structure used by the setprd function */
 								struct ata_dmasetprd_args {
 								    void *dmatab;
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								    int nsegs;
-												Allow the use of a supplied function to set the PRD table. This is
needed for new chips that supports 64bit addressing.

											
										
										
											2004-08-13 08:14:27 +00:00
+								    int error;
 								};
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								/* structure holding DMA related information */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								struct ata_dma {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    bus_dma_tag_t               dmatag;         /* parent DMA tag */
 								    bus_dma_tag_t               sg_tag;         /* SG list DMA tag */
 								    bus_dmamap_t                sg_map;         /* SG list DMA map */
 								    void                        *sg;            /* DMA transfer table */
 								    bus_addr_t                  sg_bus;         /* bus address of dmatab */
 								    bus_dma_tag_t               data_tag;       /* data DMA tag */
 								    bus_dmamap_t                data_map;       /* data DMA map */
 								    bus_dma_tag_t               work_tag;       /* workspace DMA tag */
 								    bus_dmamap_t                work_map;       /* workspace DMA map */
 								    u_int8_t                    *work;          /* workspace */
 								    bus_addr_t                  work_bus;       /* bus address of dmatab */
 								    u_int32_t                   alignment;      /* DMA engine alignment */
 								    u_int32_t                   boundary;       /* DMA engine boundary */
 								    u_int32_t                   max_iosize;     /* DMA engine max IO size */
 								    u_int32_t                   cur_iosize;     /* DMA engine current IO size */
 								    int                         flags;
 								#define ATA_DMA_READ                    0x01    /* transaction is a read */
 								#define ATA_DMA_LOADED                  0x02    /* DMA tables etc loaded */
 								#define ATA_DMA_ACTIVE                  0x04    /* DMA transfer in progress */
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								    void (*alloc)(device_t dev);
 								    void (*free)(device_t dev);
-												Allow the use of a supplied function to set the PRD table. This is
needed for new chips that supports 64bit addressing.

											
										
										
											2004-08-13 08:14:27 +00:00
+								    void (*setprd)(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								    int (*load)(device_t dev, caddr_t data, int32_t count, int dir, void *addr, int *nsegs);
 								    int (*unload)(device_t dev);
 								    int (*start)(device_t dev);
 								    int (*stop)(device_t dev);
 								    void (*reset)(device_t dev);
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								};
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								/* structure holding lowlevel functions */
 								struct ata_lowlevel {
-												Remove the old ATA_*LOCK_CH macros that used atomic ops and use
mutexes instead.
This closes the last (known) race issues in ATA which should fix
the various hangs etc seen on heavy loaded systems.

Change from using timeout functions to using callout functions in
the timeout code. This together with above closes the race that could
happen if timeout and device interrupt occured simultaniously.

Also fix the possible recursion in ata_reinit() on very dodgy
devices that could take us down in the probe.

											
										
										
											2004-09-26 11:48:43 +00:00
+								    int (*begin_transaction)(struct ata_request *request);
 								    int (*end_transaction)(struct ata_request *request);
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								    int (*command)(struct ata_request *request);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								};
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								/* structure holding resources for an ATA channel */
 								struct ata_resource {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    struct resource             *res;
 								    int                         offset;
-												First round off updates/fixes to the ATA driver.

This moves all chipset specific code to a new file 'ata-chipset.c'.
Extensive use of tables and pointers to avoid having the same switch
on chipset type in several places, and to allow substituting various
functions for different HW arch needs.
Added PIO mode setup and all DMA modes.
Support for all known SiS chipsets. Thanks to Christoph Kukulies for
sponsoring a nice ASUS P4S8X SiS648 based board for this work!

Tested on:	i386, PC98, alpha and sparc64

											
										
										
											2003-02-20 20:02:32 +00:00
+								};
-												Major update of the ATA RAID code, part 1:

Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.

											
										
										
											2002-02-04 19:23:40 +00:00
+								/* structure describing an ATA channel */
 								struct ata_channel {
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								    device_t                    dev;            /* device handle */
 								    int                         unit;           /* physical channel */
 								    struct ata_resource         r_io[ATA_MAX_RES];/* I/O resources */
 								    struct resource             *r_irq;         /* interrupt of this channel */
 								    void                        *ih;            /* interrupt handle */
 								    struct ata_lowlevel         hw;             /* lowlevel HW functions */
 								    struct ata_dma              *dma;           /* DMA data / functions */
 								    int                         flags;          /* channel flags */
 								#define         ATA_NO_SLAVE            0x01
 								#define         ATA_USE_16BIT           0x02
 								#define         ATA_ATAPI_DMA_RO        0x04
 								    int                         devices;        /* what is present */
 								#define         ATA_ATA_MASTER          0x01
 								#define         ATA_ATA_SLAVE           0x02
 								#define         ATA_ATAPI_MASTER        0x04
 								#define         ATA_ATAPI_SLAVE         0x08
 								    struct mtx                  state_mtx;      /* state lock */
 								    int                         state;          /* ATA channel state */
 								#define         ATA_IDLE                0x0000
 								#define         ATA_ACTIVE              0x0001
 								#define         ATA_STALL_QUEUE         0x0002
 								    struct mtx                  queue_mtx;      /* queue lock */
 								    TAILQ_HEAD(, ata_request)   ata_queue;      /* head of ATA queue */
 								    struct ata_request          *freezepoint;   /* composite freezepoint */
 								    struct ata_request          *running;       /* currently running request */
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
+								};
-												Update the code that deals with disk enclosures:

Properly handle the newer Promise SuperSwap 1000 enclosures.
Print out what kind of enclosure was found in the probe.
Misc cleanups in the enclosure handling code.

Sponsored by: Advanis Inc.

											
										
										
											2003-01-27 09:04:29 +00:00
+								/* disk bay/enclosure related */
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								#define         ATA_LED_OFF             0x00
 								#define         ATA_LED_RED             0x01
 								#define         ATA_LED_GREEN           0x02
 								#define         ATA_LED_ORANGE          0x03
 								#define         ATA_LED_MASK            0x03
-												Major update of the ATA RAID code, part 1:

Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.

											
										
										
											2002-02-04 19:23:40 +00:00
-												Get rid of the ivars entirely.

											
										
										
											2000-10-13 11:21:27 +00:00
+								/* externs */
-												Change the way ioctls are issue to ATA.
The most prominent part is that its now possible to issue ata_requests
directly to say acd0, instead of going through the cumbersome /dev/ata
device.

											
										
										
											2005-05-16 13:07:27 +00:00
+								extern int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data);
-												Update the ata driver to take more advantage of newbus, this
was needed to make attach/detach of devices work, which is
needed for the PCCARD support.
(PCCARD support is still not working though, more to come on that)

Support the CMD646 chip which is used on many alphas, sadly only
in WDMA2 mode, as the silicon is broken beyond belief for UDMA modes.

Lots of cosmetic fixes here and there.

Sorry for the size of this megapatchfromhell but it was not
possible otherwise...

newbus patches based on work from: dfr (Doug Rabson)

											
										
										
											2000-02-18 20:57:33 +00:00
+								extern devclass_t ata_devclass;
-												Centralise mode setting. Instead of doing it in all subdrivers, do
it in ata-all.c where it belongs.

Prime controller HW by always setting PIO mode first in attach.

											
										
										
											2003-11-11 14:55:36 +00:00
+								extern int ata_wc;
-												Finally!!

The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren

											
										
										
											1999-03-01 21:19:19 +00:00
 								/* public prototypes */
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								/* ata-all.c: */
-												Unify prototypes.
Cosmetics.

											
										
										
											2003-08-25 09:01:49 +00:00
+								int ata_probe(device_t dev);
 								int ata_attach(device_t dev);
 								int ata_detach(device_t dev);
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								int ata_reinit(device_t dev);
-												Unify prototypes.
Cosmetics.

											
										
										
											2003-08-25 09:01:49 +00:00
+								int ata_suspend(device_t dev);
 								int ata_resume(device_t dev);
-												Change the way ioctls are issue to ATA.
The most prominent part is that its now possible to issue ata_requests
directly to say acd0, instead of going through the cumbersome /dev/ata
device.

											
										
										
											2005-05-16 13:07:27 +00:00
+								int ata_device_ioctl(device_t dev, u_long cmd, caddr_t data);
-												Properly hook in devices found by SATA connect events.
This broke on the changes done to get atapicam happy earlier.

											
										
										
											2005-04-20 12:51:54 +00:00
+								int ata_identify(device_t dev);
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								void ata_default_registers(device_t dev);
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								u_int8_t ata_modify_if_48bit(struct ata_request *request);
-												Introduce ata_udelay() that uses tsleep instead of DELAY if possible.
In places where we have long delays that doesn't depend on too accurate
timing, use ata_udelay() instead of DELAY() so we dont uselessly spin
the CPU if not nessesary;

											
										
										
											2004-09-03 12:10:44 +00:00
+								void ata_udelay(int interval);
-												Unify prototypes.
Cosmetics.

											
										
										
											2003-08-25 09:01:49 +00:00
+								char *ata_mode2str(int mode);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								int ata_pmode(struct ata_params *ap);
 								int ata_wmode(struct ata_params *ap);
 								int ata_umode(struct ata_params *ap);
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								int ata_limit_mode(device_t dev, int mode, int maxmode);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
 								/* ata-queue.c: */
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								int ata_controlcmd(device_t dev, u_int8_t command, u_int16_t feature, u_int64_t lba, u_int16_t count);
 								int ata_atapicmd(device_t dev, u_int8_t *ccb, caddr_t data, int count, int flags, int timeout);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								void ata_queue_request(struct ata_request *request);
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								void ata_start(device_t dev);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								void ata_finish(struct ata_request *request);
-												Rehash the timeout code to make it more simple.
This also removes the warning timeout on the taskqueues stalling as
I'm tired of getting ATA error reports for problems in other parts ;)
Misc cosmetic and comment cleanups now we are here.

											
										
										
											2005-04-21 11:13:39 +00:00
+								void ata_timeout(struct ata_request *);
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								void ata_catch_inflight(device_t dev);
 								void ata_fail_requests(device_t dev);
-												This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

											
										
										
											2003-08-24 09:22:26 +00:00
+								char *ata_cmd2str(struct ata_request *request);
 								/* ata-lowlevel.c: */
-												Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com

											
										
										
											2005-04-30 16:22:07 +00:00
+								void ata_generic_hw(device_t dev);
 								void ata_generic_reset(device_t dev);
-												Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com

											
										
										
											2005-05-03 07:55:07 +00:00
+								int ata_generic_command(struct ata_request *request);
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
-												Add uma zone for composite ops.

Submitted by:	des

											
										
										
											2005-04-18 16:01:56 +00:00
+								/* macros for alloc/free of struct ata_request */
 								extern uma_zone_t ata_request_zone;
 								#define ata_alloc_request() uma_zalloc(ata_request_zone, M_NOWAIT | M_ZERO)
 								#define ata_free_request(request) uma_zfree(ata_request_zone, request)
 								/* macros for alloc/free of struct ata_composite */
 								extern uma_zone_t ata_composite_zone;
 								#define ata_alloc_composite() uma_zalloc(ata_composite_zone, M_NOWAIT | M_ZERO)
 								#define ata_free_composite(composite) uma_zfree(ata_composite_zone, composite)
-												This is the much rumoured ATA mkIII update that I've been working on.

o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)

											
										
										
											2005-03-30 12:03:40 +00:00
+								MALLOC_DECLARE(M_ATA);
 								/* misc newbus defines */
 								#define GRANDPARENT(dev)        device_get_parent(device_get_parent(dev))
-												Use UMA instead of plain malloc for getting ATA request storage.
This gives +10% performance on simple tests, so definitly worth it.
A few percent more could be had by not using M_ZERO'd alloc's, but
we then need to clear fields all over the place to be safe, and
that was deemed not worth the trouble (and it makes life dangerous).

											
										
										
											2004-01-14 21:26:35 +00:00
-												Refine the detach/attach code.

Proberly fail outstanding bio requests on devices that are detached.

This makes it possible to change between disk/cdrom/dvd/whathaveyou
in a notebook, just by suspending it, changing the device in the
bay (or what you model calls it), unsuspend and the ATA driver
will figure out what disappeared and properly fail those, and attach
any new devices found.

											
										
										
											2001-03-14 12:05:44 +00:00
+								/* macros to hide busspace uglyness */
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
+								#define ATA_INB(res, offset) \
 									bus_space_read_1(rman_get_bustag((res)), \
 											 rman_get_bushandle((res)), (offset))
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
+								#define ATA_INW(res, offset) \
 									bus_space_read_2(rman_get_bustag((res)), \
 											 rman_get_bushandle((res)), (offset))
 								#define ATA_INL(res, offset) \
 									bus_space_read_4(rman_get_bustag((res)), \
 											 rman_get_bushandle((res)), (offset))
 								#define ATA_INSW(res, offset, addr, count) \
 									bus_space_read_multi_2(rman_get_bustag((res)), \
 											       rman_get_bushandle((res)), \
 											       (offset), (addr), (count))
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+								#define ATA_INSW_STRM(res, offset, addr, count) \
 									bus_space_read_multi_stream_2(rman_get_bustag((res)), \
-												First round off updates/fixes to the ATA driver.

This moves all chipset specific code to a new file 'ata-chipset.c'.
Extensive use of tables and pointers to avoid having the same switch
on chipset type in several places, and to allow substituting various
functions for different HW arch needs.
Added PIO mode setup and all DMA modes.
Support for all known SiS chipsets. Thanks to Christoph Kukulies for
sponsoring a nice ASUS P4S8X SiS648 based board for this work!

Tested on:	i386, PC98, alpha and sparc64

											
										
										
											2003-02-20 20:02:32 +00:00
+												      rman_get_bushandle((res)), \
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+												      (offset), (addr), (count))
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
+								#define ATA_INSL(res, offset, addr, count) \
 									bus_space_read_multi_4(rman_get_bustag((res)), \
 											       rman_get_bushandle((res)), \
 											       (offset), (addr), (count))
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+								#define ATA_INSL_STRM(res, offset, addr, count) \
 									bus_space_read_multi_stream_4(rman_get_bustag((res)), \
-												First round off updates/fixes to the ATA driver.

This moves all chipset specific code to a new file 'ata-chipset.c'.
Extensive use of tables and pointers to avoid having the same switch
on chipset type in several places, and to allow substituting various
functions for different HW arch needs.
Added PIO mode setup and all DMA modes.
Support for all known SiS chipsets. Thanks to Christoph Kukulies for
sponsoring a nice ASUS P4S8X SiS648 based board for this work!

Tested on:	i386, PC98, alpha and sparc64

											
										
										
											2003-02-20 20:02:32 +00:00
+												      rman_get_bushandle((res)), \
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+												      (offset), (addr), (count))
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
+								#define ATA_OUTB(res, offset, value) \
 									bus_space_write_1(rman_get_bustag((res)), \
 											  rman_get_bushandle((res)), (offset), (value))
 								#define ATA_OUTW(res, offset, value) \
 									bus_space_write_2(rman_get_bustag((res)), \
 											  rman_get_bushandle((res)), (offset), (value))
 								#define ATA_OUTL(res, offset, value) \
 									bus_space_write_4(rman_get_bustag((res)), \
 											  rman_get_bushandle((res)), (offset), (value))
 								#define ATA_OUTSW(res, offset, addr, count) \
 									bus_space_write_multi_2(rman_get_bustag((res)), \
 												rman_get_bushandle((res)), \
 												(offset), (addr), (count))
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+								#define ATA_OUTSW_STRM(res, offset, addr, count) \
 									bus_space_write_multi_stream_2(rman_get_bustag((res)), \
-												First round off updates/fixes to the ATA driver.

This moves all chipset specific code to a new file 'ata-chipset.c'.
Extensive use of tables and pointers to avoid having the same switch
on chipset type in several places, and to allow substituting various
functions for different HW arch needs.
Added PIO mode setup and all DMA modes.
Support for all known SiS chipsets. Thanks to Christoph Kukulies for
sponsoring a nice ASUS P4S8X SiS648 based board for this work!

Tested on:	i386, PC98, alpha and sparc64

											
										
										
											2003-02-20 20:02:32 +00:00
+												       rman_get_bushandle((res)), \
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+												       (offset), (addr), (count))
-												Introduce busspace instead of the good old in/out instructions.
Not pretty but it works (I hope)...

											
										
										
											2001-02-06 16:44:25 +00:00
+								#define ATA_OUTSL(res, offset, addr, count) \
 									bus_space_write_multi_4(rman_get_bustag((res)), \
 												rman_get_bushandle((res)), \
 												(offset), (addr), (count))
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+								#define ATA_OUTSL_STRM(res, offset, addr, count) \
 									bus_space_write_multi_stream_4(rman_get_bustag((res)), \
-												First round off updates/fixes to the ATA driver.

This moves all chipset specific code to a new file 'ata-chipset.c'.
Extensive use of tables and pointers to avoid having the same switch
on chipset type in several places, and to allow substituting various
functions for different HW arch needs.
Added PIO mode setup and all DMA modes.
Support for all known SiS chipsets. Thanks to Christoph Kukulies for
sponsoring a nice ASUS P4S8X SiS648 based board for this work!

Tested on:	i386, PC98, alpha and sparc64

											
										
										
											2003-02-20 20:02:32 +00:00
+												       rman_get_bushandle((res)), \
-												Make the ATA driver compile & work on the sparc64 platform.

Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).

											
										
										
											2002-04-05 13:13:56 +00:00
+												       (offset), (addr), (count))
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INB(ch, idx) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INB(ch->r_io[idx].res, ch->r_io[idx].offset)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INW(ch, idx) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INW(ch->r_io[idx].res, ch->r_io[idx].offset)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INL(ch, idx) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INL(ch->r_io[idx].res, ch->r_io[idx].offset)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INSW(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INSW_STRM(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INSL(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_INSL_STRM(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_INSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTB(ch, idx, value) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTB(ch->r_io[idx].res, ch->r_io[idx].offset, value)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTW(ch, idx, value) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTW(ch->r_io[idx].res, ch->r_io[idx].offset, value)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTL(ch, idx, value) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTL(ch->r_io[idx].res, ch->r_io[idx].offset, value)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTSW(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTSW_STRM(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTSL(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
-												Third round of updates to the ATA driver.

More DMA cleanups, including fix for breakage on older Promise controllers.

Add more ways of getting to the ATA registers.

											
										
										
											2003-04-07 14:12:12 +00:00
-												Second round of updates to the ATA driver.

Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64

											
										
										
											2003-03-29 13:37:09 +00:00
+								#define ATA_IDX_OUTSL_STRM(ch, idx, addr, count) \
-												Spring cleanup of macros

											
										
										
											2004-04-30 16:21:34 +00:00
+									ATA_OUTSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)