06 May, 2019

1 commit

  • Introduce local variable 'struct device *dev' and use it instead of
    dereferencing it repeatedly.

    The conversion was done automatically with coccinelle using the
    following semantic patches. The semantic patches and the scripts
    used to generate this commit log are available at
    https://github.com/groeck/coccinelle-patches

    Signed-off-by: Guenter Roeck
    Signed-off-by: Wim Van Sebroeck

    Guenter Roeck
     

02 Mar, 2019

1 commit

  • Introduce watchdog driver for a various range of Mellanox Ethernet and
    Infiniband switch systems.

    Watchdog driver for Mellanox watchdog devices, implemented in
    programmable logic device.

    Main and auxiliary watchdog devices can exist on the same system.
    There are several actions that can be defined in the watchdog:
    system reset, start fans on full speed and increase a counter.
    The last 2 actions are performed without a system reset.
    Actions without reset are provided for auxiliary watchdog devices,
    which is optional.
    Access to HW registers is performed through generic
    regmap interface.

    There are 2 types of HW watchdog implementations.
    Type 1: actual HW timeout can be defined as power of 2 msec.
    e.g. timeout 20 sec will be rounded up to 32768 msec.;
    maximum timeout period is 32 sec (32768 msec.);
    get time-left isn't supported
    Type 2: actual HW timeout is defined in sec. and it's the same as
    user-defined timeout;
    maximum timeout is 255 sec;
    get time-left is supported;

    Watchdog driver is probed from the common mlx_platform driver.

    Signed-off-by: Michael Shych
    Reviewed-by: Guenter Roeck
    Signed-off-by: Guenter Roeck
    Signed-off-by: Wim Van Sebroeck

    Michael Shych