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Make whether or not the hpwdt watchdog delivers a pretimeout NMI programable by the user. The underlying iLO hardware is programmable as to whether or not a pre-timeout NMI is delivered to the system before the iLO resets the system. However, the iLO does not allow for programming the length of time that NMI is delivered before the system is reset. By watchdog API, in hpwdt_set_pretimeout a val == 0 disables the NMI. When val != 0, hpwdt_set_pretimeout will enable the pretimeout NMI provided the current timeout is greator than the HW specified pretimeout length. Otherwise an error is returned. In set_timeout, if the new timeout is <= an already established pretimeout, the pretimeout is canceled. This matches the action watchdog_set_timeout in the watchdog core would do if an hpwdt specific set_timeout function wasn't specified. Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.