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Implement support for Function Level Reset (FLR) in virtio_pci devices. This change adds reset_prepare and reset_done callbacks, allowing drivers to properly handle FLR operations. Without this patch, performing and recovering from an FLR is not possible for virtio_pci devices. This implementation ensures proper FLR handling and recovery for both physical and virtual functions. The device reset can be triggered in case of error or manually via sysfs: echo 1 > /sys/bus/pci/devices/$PCI_ADDR/reset Signed-off-by: Israel Rukshin <israelr@nvidia.com> Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com> Message-Id: <1732690652-3065-2-git-send-email-israelr@nvidia.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.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 reStructuredText 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.