Uncorrectable Error Severity Register @0x10c
The setting of this register determines whether an uncorrectable error is reported as a fatal error on non-fatal error to the Root Complex. If a severity bit of this register is 0, the corresponding error is reported by the Controller using an ERR_NONFATAL message. Otherwise, it is reported using an ERR_FATAL message. The bits marked RW can also be written from the local management bus.
| Bits | SW | Name | Description | Reset |
|---|---|---|---|---|
| 0 | R/W | Link Training Error Severity [LTES] | Severity of Link Training Error (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 3:1 | R | Reserved [R8] | Reserved | 0x0 |
| 4 | R/W | Data Link Protocol Error Severity [DLPER] | Severity of Data Link Protocol Errors (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x01 |
| 5 | R | Surprise Down Error Severity [SDES] | Severity of Surprise Down Error Severity (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x1 |
| 11:6 | R | Reserved [R10] | Reserved | 0x0 |
| 12 | R/W | Poisoned TLP Severity [PTS] | Severity of a Poisoned TLP error (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 13 | R/W | Flow Control Protocol Error Severity [FCPES] | Severity of Flow Control Protocol Errors (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x01 |
| 14 | R/W | Completion Timeout Severity [CTS] | Severity of Completion Timeouts (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 15 | R/W | Completer Abort Severity [CAS] | Severity of sending a Completer Abort (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 16 | R/W | Unexpected Completion Severity [UCS] | Severity of unexpected Completions received by the Controller (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 17 | R/W | Receiver Overflow Severity [ROS] | Severity of receive credit violations (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x01 |
| 18 | R/W | Malformed TLP Severity [MTS] | Severity of malformed TLPs received from the link (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x01 |
| 19 | R/W | ECRC Error Severity [EES] | Severity of ECRC errors (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 20 | R/W | Unsupported Requeset Error Severity [URES] | Severity of unexpected requests received from the link (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x0 |
| 21 | R | Reserved [R11] | Reserved | 0x0 |
| 22 | R/W | Uncorrectable Internal Error Severity [UIES] | Severity of internal errors (0 = Non-Fatal, 1 = Fatal). STICKY. | 0x01 |
| 31:23 | R | Reserved [R12] | Reserved | 0x0 |