Documentation/PCI/pcieaer-howto.rst

1 .. SPDX-License-Identifier: GPL-2.0
8 :Authors: - T. Long Nguyen <tom.l.nguyen@intel.com>
9           - Yanmin Zhang <yanmin.zhang@intel.com>
17 ----------------
26 ----------------------------
41   - Gathers the comprehensive error information if errors occurred.
42   - Reports error to the users.
43   - Performs error recovery actions.
53 ------------------------------------------------------
55 The PCIe AER driver is a Root Port service driver attached
61 -------------------------
70 ----------------
89 -------------------------
93 Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
116 errors are further classified into non-fatal errors and fatal errors.
117 Non-fatal errors cause the particular transaction to be unreliable,
138 -----------------
144 fatal error happens. The Root Port AER service driver provides a
152 PCI error-recovery callbacks
162 pci-error-recovery.rst except PCIe-specific parts (e.g.
163 reset_link). Please refer to pci-error-recovery.rst for detailed
177 Non-correctable (non-fatal and fatal) errors
180 If an error message indicates a non-fatal error, performing link reset
198 to reset link, AER port service driver is required to provide the
206 ------------------------
210   error recovery handler (pci_driver->err_handler is equal to NULL)?
218   What happens if an upstream port service driver does not provide
223   upstream ports who are attached by the service driver.
241 Then, you need a user space tool named aer-inject, which can be gotten
244     https://git.kernel.org/cgit/linux/kernel/git/gong.chen/aer-inject.git/
246 More information about aer-inject can be found in the document in