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Watchdog thread polls for IOC state every 1 second. If it detects that IOC state is in CoreDump state then it immediately stops the IOs and also clears the outstanding commands issued to the HBA firmware and then it will poll for IOC state to be out of CoreDump state and once it detects that IOC state is changed from CoreDump state to Fault state (or) CoreDumpTOSec number of seconds are elapsed then it will issue host reset operation and moves the IOC state to Operational state and resumes the IOs. Whenever any TM is received from SML then if driver detects the IOC state is in CoreDump state then it will wait for CoreDump state to be cleared and will host reset operation. Link: https://lore.kernel.org/r/20191226111333.26131-6-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.