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Following a reset, a Function may respond to Config Requests with Request Retry Status (RRS) Completion Status to indicate that it is temporarily unable to process the Request, but will be able to process the Request in the future (PCIe r6.0, sec 2.3.1). If the Configuration RRS Software Visibility feature is enabled and a Root Complex receives RRS for a config read of the Vendor ID, the Root Complex completes the Request to the host by returning PCI_VENDOR_ID_PCI_SIG, 0x0001 (sec 2.3.2). The Config RRS SV feature applies only to Root Ports and is not directly related to pci_scan_bridge_extend(). Move the RRS SV enable to set_pcie_port_type() where we handle other PCIe-specific configuration. Link: https://lore.kernel.org/r/20250303210217.199504-1-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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| certs | ||
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.