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Our goal is to handle ERR_FATAL errors similarly, whether they are reported via AER or via DPC. A previous commit changed AER so it handles ERR_FATAL by calling driver .remove() methods and resetting the Link. DPC already does that (although the Link reset is done automatically by hardware and happens before we call the driver .remove() methods). Restructure the DPC code so it calls the same pcie_do_fatal_recovery() interface used by AER. This makes it clearer that we want to use the same path. Implement the .reset_link() method used by pcie_do_fatal_recovery(). For DPC, the actual reset is done automatically by hardware, so we really only have to wait for the Link to be inactive, then release the Port from DPC. Signed-off-by: Oza Pawandeep <poza@codeaurora.org> [bhelgaas: changelog, DPC_FATAL is not a bitfield, can be sequential] Signed-off-by: Bjorn Helgaas <bhelgaas@google.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.
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.