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    SubjectRe: Linux 2.4.19-pre3

    On 2002.03.12 Karsten Weiss wrote:
    >On Mon, 11 Mar 2002, Marcelo Tosatti wrote:
    >
    >> Here goes -pre3, with the new IDE code. It has been stable enough time in
    >
    >I´m surprised that there are no descriptions for the following
    >config options (after months of fights for inclusion of this
    >patch):
    >
    >CONFIG_IDEDISK_STROKE
    >CONFIG_IDE_TASK_IOCTL
    >CONFIG_BLK_DEV_IDEDMA_FORCED
    >CONFIG_IDEDMA_ONLYDISK
    >CONFIG_BLK_DEV_ELEVATOR_NOOP
    >
    >Or did you simply forget to merge them?
    >

    This is the last version I grabbed fron the list:

    diff -urN linux-2.4.17-pristine/Documentation/Configure.help linux-2.4.17/Documentation/Configure.help
    --- linux-2.4.17-pristine/Documentation/Configure.help Fri Dec 21 09:41:53 2001
    +++ linux-2.4.17/Documentation/Configure.help Sat Jan 19 18:30:28 2002
    @@ -723,6 +723,59 @@
    say M here and read <file:Documentation/modules.txt>. The module
    will be called ide-floppy.o.

    +AWARD Bios Work-Around
    +CONFIG_IDEDISK_STROKE
    + Should you have a system w/ an AWARD Bios and your drives are larger
    + than 32GB and it will not boot, one is required to perform a few OEM
    + operations first. The option is called "STROKE" because it allows
    + one to "soft clip" the drive to work around a barrier limit. For
    + Maxtor drives it is called "jumpon.exe". Please search Maxtor's
    + web-site for "JUMPON.EXE". IBM has a similar tool at:
    + <http://www.storage.ibm.com/hdd/support/download.htm>.
    +
    + If you are unsure, say N here.
    +
    +Raw Access to Media
    +CONFIG_IDE_TASK_IOCTL
    + This is a direct raw access to the media. It is a complex but
    + elegant solution to test and validate the domain of the hardware and
    + perform below the driver data recover if needed. This is the most
    + basic form of media-forensics.
    +
    + If you are unsure, say N here.
    +
    +Use Taskfile I/O
    +CONFIG_IDE_TASKFILE_IO
    + This is the "Jewel" of the patch. It will go away and become the new
    + driver core. Since all the chipsets/host side hardware deal w/ their
    + exceptions in "their local code" currently, adoption of a
    + standardized data-transport is the only logical solution.
    + Additionally we packetize the requests and gain rapid performance and
    + a reduction in system latency. Additionally by using a memory struct
    + for the commands we can redirect to a MMIO host hardware in the next
    + generation of controllers, specifically second generation Ultra133
    + and Serial ATA.
    +
    + Since this is a major transition, it was deemed necessary to make the
    + driver paths buildable in separtate models. Therefore if using this
    + option fails for your arch then we need to address the needs for that
    + arch.
    +
    + If you want to test this functionality, say Y here.
    +
    +Force DMA
    +CONFIG_BLK_DEV_IDEDMA_FORCED
    + This is an old piece of lost code from Linux 2.0 Kernels.
    +
    + Generally say N here.
    +
    +DMA Only on Disks
    +CONFIG_IDEDMA_ONLYDISK
    + This is used if you know your ATAPI Devices are going to fail DMA
    + Transfers.
    +
    + Generally say N here.
    +
    SCSI emulation support
    CONFIG_BLK_DEV_IDESCSI
    This will provide SCSI host adapter emulation for IDE ATAPI devices,
    @@ -747,6 +747,14 @@
    If both this SCSI emulation and native ATAPI support are compiled
    into the kernel, the native support will be used.

    +Use the NOOP Elevator (WARNING)
    +CONFIG_BLK_DEV_ELEVATOR_NOOP
    + If you are using a raid class top-level driver above the ATA/IDE core,
    + one may find a performance boost by preventing a merging and re-sorting
    + of the new requests.
    +
    + If unsure, say N.
    +
    ISA-PNP EIDE support
    CONFIG_BLK_DEV_ISAPNP
    If you have an ISA EIDE card that is PnP (Plug and Play) and

    --
    J.A. Magallon # Let the source be with you...
    mailto:jamagallon@able.es
    Mandrake Linux release 8.2 (Cooker) for i586
    Linux werewolf 2.4.19-pre3-jam1 #2 SMP Tue Mar 12 08:37:23 CET 2002 i686
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