PCI AER: software error injection

Debugging PCIE AER code can be very difficult because it is hard
to trigger various real hardware errors. This patch provide a
software based error injection tool, which can fake various PCIE
errors with a user space helper tool named "aer-inject". Which
can be gotten from:

  http://www.kernel.org/pub/linux/kernel/people/yhuang/

The patch fakes AER error by faking some PCIE AER related
registers and an AER interrupt for specified the PCIE device.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/pci/pcie/aer/Kconfig.debug b/drivers/pci/pcie/aer/Kconfig.debug
new file mode 100644
index 000000000000..b8c925c1f6aa
--- /dev/null
+++ b/drivers/pci/pcie/aer/Kconfig.debug
@@ -0,0 +1,18 @@
+#
+# PCI Express Root Port Device AER Debug Configuration
+#
+
+config PCIEAER_INJECT
+        tristate "PCIE AER error injector support"
+        depends on PCIEAER
+        default n
+        help
+          This enables PCI Express Root Port Advanced Error Reporting
+          (AER) software error injector.
+
+          Debuging PCIE AER code is quite difficult because it is hard
+          to trigger various real hardware errors. Software based
+          error injection can fake almost all kinds of errors with the
+          help of a user space helper tool aer-inject, which can be
+          gotten from:
+             http://www.kernel.org/pub/linux/utils/pci/aer-inject/