3 files changed, 42 insertions, 1 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 97ad190e13af..6bf68053e4b8 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -122,3 +122,10 @@ Description:
                 This symbolic link appears when a device is a Virtual Function.
                 The symbolic link points to the PCI device sysfs entry of the
                 Physical Function this device associates with.
+
+What:           /sys/bus/pci/slots/.../module
+Date:           June 2009
+Contact:        linux-pci@vger.kernel.org
+Description:
+                This symbolic link points to the PCI hotplug controller driver
+                module that manages the hotplug slot.
diff --git a/Documentation/PCI/pcieaer-howto.txt b/Documentation/PCI/pcieaer-howto.txt
index ddeb14beacc8..be21001ab144 100644
--- a/Documentation/PCI/pcieaer-howto.txt
+++ b/Documentation/PCI/pcieaer-howto.txt
@@ -61,6 +61,10 @@ be initiated although firmwares have no _OSC support. To enable the
 walkaround, pls. add aerdriver.forceload=y to kernel boot parameter line
 when booting kernel. Note that forceload=n by default.
 
+nosourceid, another parameter of type bool, can be used when broken
+hardware (mostly chipsets) has root ports that cannot obtain the reporting
+source ID. nosourceid=n by default.
+
 2.3 AER error output
 When a PCI-E AER error is captured, an error message will be outputed to
 console. If it's a correctable error, it is outputed as a warning.
@@ -246,3 +250,24 @@ with the PCI Express AER Root driver?
 A: It could call the helper functions to enable AER in devices and
 cleanup uncorrectable status register. Pls. refer to section 3.3.
 
+
+4. Software error injection
+
+Debugging PCIE AER error recovery code is quite difficult because it
+is hard to trigger real hardware errors. Software based error
+injection can be used to fake various kinds of PCIE errors.
+
+First you should enable PCIE AER software error injection in kernel
+configuration, that is, following item should be in your .config.
+
+CONFIG_PCIEAER_INJECT=y or CONFIG_PCIEAER_INJECT=m
+
+After reboot with new kernel or insert the module, a device file named
+/dev/aer_inject should be created.
+
+Then, you need a user space tool named aer-inject, which can be gotten
+from:
+    http://www.kernel.org/pub/linux/utils/pci/aer-inject/
+
+More information about aer-inject can be found in the document comes
+with its source code.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 08def8deb5f5..7da0899d1fb9 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1776,6 +1776,9 @@ and is between 256 and 4096 characters. It is defined in the file
                                 root domains (aka PCI segments, in ACPI-speak).
                 nommconf        [X86] Disable use of MMCONFIG for PCI
                                 Configuration
+                check_enable_amd_mmconf [X86] check for and enable
+                                properly configured MMIO access to PCI
+                                config space on AMD family 10h CPU
                 nomsi           [MSI] If the PCI_MSI kernel config parameter is
                                 enabled, this kernel boot option can be used to
                                 disable the use of MSI interrupts system-wide.
@@ -1828,7 +1831,7 @@ and is between 256 and 4096 characters. It is defined in the file
                                 IRQ routing is enabled.
                 noacpi          [X86] Do not use ACPI for IRQ routing
                                 or for PCI scanning.
-                use_crs         [X86] Use _CRS for PCI resource
+                nocrs           [X86] Don't use _CRS for PCI resource
                                 allocation.
                 routeirq        Do IRQ routing for all PCI devices.
                                 This is normally done in pci_enable_device(),
@@ -1865,6 +1868,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                 PAGE_SIZE is used as alignment.
                                 PCI-PCI bridge can be specified, if resource
                                 windows need to be expanded.
+                ecrc=           Enable/disable PCIe ECRC (transaction layer
+                                end-to-end CRC checking).
+                                bios: Use BIOS/firmware settings. This is the
+                                the default.
+                                off: Turn ECRC off
+                                on: Turn ECRC on.
 
         pcie_aspm=      [PCIE] Forcibly enable or disable PCIe Active State Power
                         Management.