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The original architecture of /sys/bus/dsa invented a scheme whereby a single entry in the list of bus drivers, /sys/bus/drivers/dsa, handled all device types and internally routed them to different drivers. Those internal drivers were invisible to userspace. Now, as /sys/bus/dsa wants to grow support for alternate drivers for a given device, for example vfio-mdev instead of kernel-internal-dmaengine, a proper bus device-driver model is needed. The first step in that process is separating the existing omnibus/implicit "dsa" driver into proper individual drivers registered on /sys/bus/dsa. Establish the idxd_drv driver that control the enabling and disabling of the accelerator device. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637466439.744545.15210886092627144577.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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.