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Slot capabilities are currently not reported because emulated bridge does not report the PCI_EXP_FLAGS_SLOT flag. Set PCI_EXP_FLAGS_SLOT to let the kernel know that PCI_EXP_SLT* registers are supported. Move setting of PCI_EXP_SLTCTL register from "dynamic" pcie_conf_read function to static buffer as it is only statically filled the PCI_EXP_SLTSTA_PDS flag and dynamic read callback is not needed for this register. Set Presence State Bit to 1 since there is no support for unplugging the card and there is currently no platform able to detect presence of a card - in such a case the bit needs to be set to 1. Finally correctly set Physical Slot Number to 1 since there is only one port and zero value is reserved for ports within the same silicon as Root Port which is not our case for Aardvark HW. Link: https://lore.kernel.org/r/20220524132827.8837-3-kabel@kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> 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.
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.