Doug / smarc-fsl-linux-kernel

04 Jul, 2013

1 commit

  • fdf90abc0   rapidio: add modular build option for the subsystem core ... Browse Code »

    Add a configuration option to build RapidIO subsystem core code as a
    loadable kernel module. Currently this option is available only for
    x86-based platforms, with the additional patch for PowerPC planned to be
    provided later.

    This patch replaces kernel command line parameter "riohdid=" with its
    module-specific analog "rapidio.hdid=".

    Signed-off-by: Alexandre Bounine
    Cc: Matt Porter
    Cc: Li Yang
    Cc: Kumar Gala
    Cc: Andre van Herk
    Cc: Micha Nelissen
    Cc: Stef van Os
    Cc: Jean Delvare
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexandre Bounine
     

25 May, 2013

1 commit

  • a11650e11   rapidio: make enumeration/discovery configurable ... Browse Code »

    Systems that use RapidIO fabric may need to implement their own
    enumeration and discovery methods which are better suitable for needs of
    a target application.

    The following set of patches is intended to simplify process of
    introduction of new RapidIO fabric enumeration/discovery methods.

    The first patch offers ability to add new RapidIO enumeration/discovery
    methods using kernel configuration options. This new configuration
    option mechanism allows to select statically linked or modular
    enumeration/discovery method(s) from the list of existing methods or use
    external module(s).

    This patch also updates the currently existing enumeration/discovery
    code to be used as a statically linked or modular method.

    The corresponding configuration option is named "Basic
    enumeration/discovery" method. This is the only one configuration
    option available today but new methods are expected to be introduced
    after adoption of provided patches.

    The second patch address a long time complaint of RapidIO subsystem
    users regarding fabric enumeration/discovery start sequence. Existing
    implementation offers only a boot-time enumeration/discovery start which
    requires synchronized boot of all endpoints in RapidIO network. While
    it works for small closed configurations with limited number of
    endpoints, using this approach in systems with large number of endpoints
    is quite challenging.

    To eliminate requirement for synchronized start the second patch
    introduces RapidIO enumeration/discovery start from user space.

    For compatibility with the existing RapidIO subsystem implementation,
    automatic boot time enumeration/discovery start can be configured in by
    specifying "rio-scan.scan=1" command line parameter if statically linked
    basic enumeration method is selected.

    This patch:

    Rework to implement RapidIO enumeration/discovery method selection
    combined with ability to use enumeration/discovery as a kernel module.

    This patch adds ability to introduce new RapidIO enumeration/discovery
    methods using kernel configuration options. Configuration option
    mechanism allows to select statically linked or modular
    enumeration/discovery method from the list of existing methods or use
    external modules. If a modular enumeration/discovery is selected each
    RapidIO mport device can have its own method attached to it.

    The existing enumeration/discovery code was updated to be used as
    statically linked or modular method. This configuration option is named
    "Basic enumeration/discovery" method.

    Several common routines have been moved from rio-scan.c to make them
    available to other enumeration methods and reduce number of exported
    symbols.

    Signed-off-by: Alexandre Bounine
    Cc: Matt Porter
    Cc: Li Yang
    Cc: Kumar Gala
    Cc: Andre van Herk
    Cc: Micha Nelissen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexandre Bounine
     

03 Nov, 2011

1 commit

  • 48618fb4e   RapidIO: add mport driver for Tsi721 bridge ... Browse Code »

    Add RapidIO mport driver for IDT TSI721 PCI Express-to-SRIO bridge device.
    The driver provides full set of callback functions defined for mport
    devices in RapidIO subsystem. It also is compatible with current version
    of RIONET driver (Ethernet over RapidIO messaging services).

    This patch is applicable to kernel versions starting from 2.6.39.

    Signed-off-by: Alexandre Bounine
    Signed-off-by: Chul Kim
    Cc: Kumar Gala
    Cc: Matt Porter
    Cc: Li Yang
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexandre Bounine
     

17 Mar, 2011

1 commit

28 May, 2010

1 commit

07 Nov, 2005

1 commit

  • 394b701ce   [PATCH] RapidIO support: core base ... Browse Code »

    Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect
    used in higher-end embedded applications. The curious can look at the specs
    over at http://www.rapidio.org

    The core code implements enumeration/discovery, management of
    devices/resources, and interfaces for RIO drivers.

    There's a lot more to do to take advantages of all the hardware features.
    However, this should provide a good base for folks with RIO hardware to start
    contributing.

    Signed-off-by: Matt Porter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Porter