| .. | .. |
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| 1 | | -========================== |
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| 2 | 1 | PCIe Device AER statistics |
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| 3 | | -========================== |
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| 2 | +-------------------------- |
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| 3 | + |
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| 4 | 4 | These attributes show up under all the devices that are AER capable. These |
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| 5 | 5 | statistical counters indicate the errors "as seen/reported by the device". |
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| 6 | 6 | Note that this may mean that if an endpoint is causing problems, the AER |
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| .. | .. |
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| 9 | 9 | problematic endpoint itself (which may report all counters as 0 as it never |
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| 10 | 10 | saw any problems). |
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| 11 | 11 | |
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| 12 | | -Where: /sys/bus/pci/devices/<dev>/aer_dev_correctable |
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| 12 | +What: /sys/bus/pci/devices/<dev>/aer_dev_correctable |
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| 13 | 13 | Date: July 2018 |
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| 14 | | -Kernel Version: 4.19.0 |
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| 14 | +KernelVersion: 4.19.0 |
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| 15 | 15 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 16 | 16 | Description: List of correctable errors seen and reported by this |
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| 17 | 17 | PCI device using ERR_COR. Note that since multiple errors may |
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| 18 | 18 | be reported using a single ERR_COR message, thus |
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| 19 | 19 | TOTAL_ERR_COR at the end of the file may not match the actual |
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| 20 | | - total of all the errors in the file. Sample output: |
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| 21 | | -------------------------------------------------------------------------- |
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| 22 | | -localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_correctable |
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| 23 | | -Receiver Error 2 |
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| 24 | | -Bad TLP 0 |
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| 25 | | -Bad DLLP 0 |
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| 26 | | -RELAY_NUM Rollover 0 |
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| 27 | | -Replay Timer Timeout 0 |
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| 28 | | -Advisory Non-Fatal 0 |
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| 29 | | -Corrected Internal Error 0 |
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| 30 | | -Header Log Overflow 0 |
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| 31 | | -TOTAL_ERR_COR 2 |
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| 32 | | -------------------------------------------------------------------------- |
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| 20 | + total of all the errors in the file. Sample output:: |
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| 33 | 21 | |
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| 34 | | -Where: /sys/bus/pci/devices/<dev>/aer_dev_fatal |
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| 22 | + localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_correctable |
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| 23 | + Receiver Error 2 |
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| 24 | + Bad TLP 0 |
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| 25 | + Bad DLLP 0 |
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| 26 | + RELAY_NUM Rollover 0 |
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| 27 | + Replay Timer Timeout 0 |
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| 28 | + Advisory Non-Fatal 0 |
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| 29 | + Corrected Internal Error 0 |
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| 30 | + Header Log Overflow 0 |
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| 31 | + TOTAL_ERR_COR 2 |
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| 32 | + |
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| 33 | +What: /sys/bus/pci/devices/<dev>/aer_dev_fatal |
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| 35 | 34 | Date: July 2018 |
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| 36 | | -Kernel Version: 4.19.0 |
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| 35 | +KernelVersion: 4.19.0 |
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| 37 | 36 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 38 | 37 | Description: List of uncorrectable fatal errors seen and reported by this |
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| 39 | 38 | PCI device using ERR_FATAL. Note that since multiple errors may |
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| 40 | 39 | be reported using a single ERR_FATAL message, thus |
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| 41 | 40 | TOTAL_ERR_FATAL at the end of the file may not match the actual |
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| 42 | | - total of all the errors in the file. Sample output: |
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| 43 | | -------------------------------------------------------------------------- |
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| 44 | | -localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_fatal |
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| 45 | | -Undefined 0 |
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| 46 | | -Data Link Protocol 0 |
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| 47 | | -Surprise Down Error 0 |
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| 48 | | -Poisoned TLP 0 |
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| 49 | | -Flow Control Protocol 0 |
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| 50 | | -Completion Timeout 0 |
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| 51 | | -Completer Abort 0 |
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| 52 | | -Unexpected Completion 0 |
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| 53 | | -Receiver Overflow 0 |
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| 54 | | -Malformed TLP 0 |
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| 55 | | -ECRC 0 |
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| 56 | | -Unsupported Request 0 |
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| 57 | | -ACS Violation 0 |
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| 58 | | -Uncorrectable Internal Error 0 |
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| 59 | | -MC Blocked TLP 0 |
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| 60 | | -AtomicOp Egress Blocked 0 |
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| 61 | | -TLP Prefix Blocked Error 0 |
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| 62 | | -TOTAL_ERR_FATAL 0 |
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| 63 | | -------------------------------------------------------------------------- |
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| 41 | + total of all the errors in the file. Sample output:: |
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| 64 | 42 | |
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| 65 | | -Where: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal |
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| 43 | + localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_fatal |
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| 44 | + Undefined 0 |
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| 45 | + Data Link Protocol 0 |
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| 46 | + Surprise Down Error 0 |
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| 47 | + Poisoned TLP 0 |
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| 48 | + Flow Control Protocol 0 |
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| 49 | + Completion Timeout 0 |
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| 50 | + Completer Abort 0 |
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| 51 | + Unexpected Completion 0 |
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| 52 | + Receiver Overflow 0 |
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| 53 | + Malformed TLP 0 |
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| 54 | + ECRC 0 |
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| 55 | + Unsupported Request 0 |
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| 56 | + ACS Violation 0 |
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| 57 | + Uncorrectable Internal Error 0 |
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| 58 | + MC Blocked TLP 0 |
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| 59 | + AtomicOp Egress Blocked 0 |
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| 60 | + TLP Prefix Blocked Error 0 |
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| 61 | + TOTAL_ERR_FATAL 0 |
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| 62 | + |
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| 63 | +What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal |
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| 66 | 64 | Date: July 2018 |
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| 67 | | -Kernel Version: 4.19.0 |
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| 65 | +KernelVersion: 4.19.0 |
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| 68 | 66 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 69 | 67 | Description: List of uncorrectable nonfatal errors seen and reported by this |
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| 70 | 68 | PCI device using ERR_NONFATAL. Note that since multiple errors |
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| 71 | 69 | may be reported using a single ERR_FATAL message, thus |
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| 72 | 70 | TOTAL_ERR_NONFATAL at the end of the file may not match the |
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| 73 | | - actual total of all the errors in the file. Sample output: |
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| 74 | | -------------------------------------------------------------------------- |
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| 75 | | -localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_nonfatal |
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| 76 | | -Undefined 0 |
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| 77 | | -Data Link Protocol 0 |
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| 78 | | -Surprise Down Error 0 |
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| 79 | | -Poisoned TLP 0 |
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| 80 | | -Flow Control Protocol 0 |
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| 81 | | -Completion Timeout 0 |
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| 82 | | -Completer Abort 0 |
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| 83 | | -Unexpected Completion 0 |
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| 84 | | -Receiver Overflow 0 |
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| 85 | | -Malformed TLP 0 |
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| 86 | | -ECRC 0 |
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| 87 | | -Unsupported Request 0 |
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| 88 | | -ACS Violation 0 |
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| 89 | | -Uncorrectable Internal Error 0 |
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| 90 | | -MC Blocked TLP 0 |
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| 91 | | -AtomicOp Egress Blocked 0 |
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| 92 | | -TLP Prefix Blocked Error 0 |
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| 93 | | -TOTAL_ERR_NONFATAL 0 |
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| 94 | | -------------------------------------------------------------------------- |
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| 71 | + actual total of all the errors in the file. Sample output:: |
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| 95 | 72 | |
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| 96 | | -============================ |
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| 73 | + localhost /sys/devices/pci0000:00/0000:00:1c.0 # cat aer_dev_nonfatal |
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| 74 | + Undefined 0 |
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| 75 | + Data Link Protocol 0 |
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| 76 | + Surprise Down Error 0 |
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| 77 | + Poisoned TLP 0 |
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| 78 | + Flow Control Protocol 0 |
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| 79 | + Completion Timeout 0 |
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| 80 | + Completer Abort 0 |
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| 81 | + Unexpected Completion 0 |
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| 82 | + Receiver Overflow 0 |
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| 83 | + Malformed TLP 0 |
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| 84 | + ECRC 0 |
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| 85 | + Unsupported Request 0 |
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| 86 | + ACS Violation 0 |
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| 87 | + Uncorrectable Internal Error 0 |
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| 88 | + MC Blocked TLP 0 |
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| 89 | + AtomicOp Egress Blocked 0 |
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| 90 | + TLP Prefix Blocked Error 0 |
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| 91 | + TOTAL_ERR_NONFATAL 0 |
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| 92 | + |
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| 97 | 93 | PCIe Rootport AER statistics |
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| 98 | | -============================ |
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| 94 | +---------------------------- |
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| 95 | + |
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| 99 | 96 | These attributes show up under only the rootports (or root complex event |
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| 100 | 97 | collectors) that are AER capable. These indicate the number of error messages as |
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| 101 | 98 | "reported to" the rootport. Please note that the rootports also transmit |
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| .. | .. |
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| 103 | 100 | device, so these counters include them and are thus cumulative of all the error |
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| 104 | 101 | messages on the PCI hierarchy originating at that root port. |
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| 105 | 102 | |
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| 106 | | -Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor |
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| 103 | +What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor |
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| 107 | 104 | Date: July 2018 |
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| 108 | | -Kernel Version: 4.19.0 |
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| 105 | +KernelVersion: 4.19.0 |
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| 109 | 106 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 110 | 107 | Description: Total number of ERR_COR messages reported to rootport. |
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| 111 | 108 | |
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| 112 | | -Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal |
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| 109 | +What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal |
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| 113 | 110 | Date: July 2018 |
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| 114 | | -Kernel Version: 4.19.0 |
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| 111 | +KernelVersion: 4.19.0 |
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| 115 | 112 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 116 | 113 | Description: Total number of ERR_FATAL messages reported to rootport. |
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| 117 | 114 | |
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| 118 | | -Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal |
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| 115 | +What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal |
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| 119 | 116 | Date: July 2018 |
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| 120 | | -Kernel Version: 4.19.0 |
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| 117 | +KernelVersion: 4.19.0 |
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| 121 | 118 | Contact: linux-pci@vger.kernel.org, rajatja@google.com |
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| 122 | 119 | Description: Total number of ERR_NONFATAL messages reported to rootport. |
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