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authorRajat Jain2018-06-21 16:48:29 -0700
committerBjorn Helgaas2018-07-19 16:19:52 -0500
commit12833017e581c384afa35fb85ce540082b2d59fc (patch)
treef1f66b0ca8de58a863393b14df6deeade6f1e3e8 /Documentation/ABI
parent81aa5206f9a7c9793e2f7971400351664e40b04f (diff)
PCI/AER: Add sysfs attributes for rootport cumulative stats
Add sysfs attributes for rootport statistics (that are cumulative of all the ERR_* messages seen on this PCI hierarchy). Signed-off-by: Rajat Jain <rajatja@google.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
index 3a784297cfed..4b0318c99507 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
@@ -92,3 +92,31 @@ AtomicOp Egress Blocked 0
TLP Prefix Blocked Error 0
TOTAL_ERR_NONFATAL 0
-------------------------------------------------------------------------
+
+============================
+PCIe Rootport AER statistics
+============================
+These attributes show up under only the rootports (or root complex event
+collectors) that are AER capable. These indicate the number of error messages as
+"reported to" the rootport. Please note that the rootports also transmit
+(internally) the ERR_* messages for errors seen by the internal rootport PCI
+device, so these counters include them and are thus cumulative of all the error
+messages on the PCI hierarchy originating at that root port.
+
+Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor
+Date: July 2018
+Kernel Version: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_COR messages reported to rootport.
+
+Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal
+Date: July 2018
+Kernel Version: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_FATAL messages reported to rootport.
+
+Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal
+Date: July 2018
+Kernel Version: 4.19.0
+Contact: linux-pci@vger.kernel.org, rajatja@google.com
+Description: Total number of ERR_NONFATAL messages reported to rootport.