Based on kernel version 6.12.4. Page generated on 2024-12-12 21:01 EST.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | PCIe Device AER statistics -------------------------- These attributes show up under all the devices that are AER capable. These statistical counters indicate the errors "as seen/reported by the device". Note that this may mean that if an endpoint is causing problems, the AER counters may increment at its link partner (e.g. root port) because the errors may be "seen" / reported by the link partner and not the problematic endpoint itself (which may report all counters as 0 as it never saw any problems). What: /sys/bus/pci/devices/<dev>/aer_dev_correctable Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: List of correctable errors seen and reported by this PCI device using ERR_COR. Note that since multiple errors may be reported using a single ERR_COR message, thus TOTAL_ERR_COR at the end of the file may not match the actual total of all the errors in the file. Sample output:: localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_correctable Receiver Error 2 Bad TLP 0 Bad DLLP 0 RELAY_NUM Rollover 0 Replay Timer Timeout 0 Advisory Non-Fatal 0 Corrected Internal Error 0 Header Log Overflow 0 TOTAL_ERR_COR 2 What: /sys/bus/pci/devices/<dev>/aer_dev_fatal Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: List of uncorrectable fatal errors seen and reported by this PCI device using ERR_FATAL. Note that since multiple errors may be reported using a single ERR_FATAL message, thus TOTAL_ERR_FATAL at the end of the file may not match the actual total of all the errors in the file. Sample output:: localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_fatal Undefined 0 Data Link Protocol 0 Surprise Down Error 0 Poisoned TLP 0 Flow Control Protocol 0 Completion Timeout 0 Completer Abort 0 Unexpected Completion 0 Receiver Overflow 0 Malformed TLP 0 ECRC 0 Unsupported Request 0 ACS Violation 0 Uncorrectable Internal Error 0 MC Blocked TLP 0 AtomicOp Egress Blocked 0 TLP Prefix Blocked Error 0 TOTAL_ERR_FATAL 0 What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: List of uncorrectable nonfatal errors seen and reported by this PCI device using ERR_NONFATAL. Note that since multiple errors may be reported using a single ERR_FATAL message, thus TOTAL_ERR_NONFATAL at the end of the file may not match the actual total of all the errors in the file. Sample output:: localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_nonfatal Undefined 0 Data Link Protocol 0 Surprise Down Error 0 Poisoned TLP 0 Flow Control Protocol 0 Completion Timeout 0 Completer Abort 0 Unexpected Completion 0 Receiver Overflow 0 Malformed TLP 0 ECRC 0 Unsupported Request 0 ACS Violation 0 Uncorrectable Internal Error 0 MC Blocked TLP 0 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. What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_cor Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_COR messages reported to rootport. What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_fatal Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_FATAL messages reported to rootport. What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_nonfatal Date: July 2018 KernelVersion: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_NONFATAL messages reported to rootport. |