2 simple ide questions

From: nbecker@fred.net
Date: Tue May 16 2000 - 15:02:47 EDT

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    New kernel 2.3.99-pre8.
    CONFIG_BLK_DEV_VIA82CXXX=y
    # CONFIG_VIA82CXXX_TUNING is not set
    # CONFIG_IDE_CHIPSETS is not set
    CONFIG_IDEDMA_AUTO=y
    CONFIG_BLK_DEV_IDE_MODES=y

    I noticed it came up without DMA.

    1) How do I make sure it boots up with DMA?

    2) How do I tell if I'm using UDMA/66?

    cat /proc/ide/via
    Command register = 0x7
    Master Read Cycle IRDY 0 Wait State
    Master Write Cycle IRDY 0 Wait State
    FIFO Output Data 1/2 Clock Advance: off
    Bus Master IDE Status Register Read Retry: on
    Latency timer = 32 (max. = 0)
    Interrupt Steering Swap: off
    ------------------Primary IDE------------Secondary IDE-----
    both channels togth: yes yes
    Prefetch Buffer : on on
    Post Write Buffer: on on
    FIFO Conf/Chan. : 08 08
    Threshold Prim. : 1/2 1/2
    Read DMA FIFO flush: on on
    End Sect. FIFO flush: on on
    Max DRDY Pulse Width: No limitation
    Bytes Per Sector: 512 512
    --------------drive0------drive1-------drive0------drive1----
    DMA enabled: yes no yes no
    Act Pls Width: 03 11 03 07
    Recovery Time: 02 09 02 06
    Add. Setup T.: 4T 4T 4T 4T
    ------------------UDMA-Timing-Control------------------------
    Enable Meth.: 1 0 1 0
    Enable: yes no yes no
    Transfer Mode: PIO DMA PIO DMA
    Cycle Time: 3T 5T 3T 5T

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