16 /** Each chip is connected to two TOD topologies: active and backup. The values
50     /** The chips sourcing the clocks to non-MDMT chips with faults. */
55      * @brief Sets this chip as the MDMT at fault for this topology.
57      * @param i_chipAtFault The chip reporting step check fault.
67      * @return The MDMT chip for this topology, if at fault. Otherwise, nullptr.
75      * @brief Indicates the given chip has an internal fault.
77      * @param i_chipAtFault The chip reporting a step check fault.
95      * @brief Indicates the given non-MDMT chip has seen a fault in the TOD
96      *        network.
98      * @param i_chipSourcingClock The chip sourcing the clock for the chip at
100      * @param i_chipAtFault       The chip reporting the fault.
114      * @return The list of all chips sourcing the clocks for the non-MDMT chips
141         trace::err("Register read failed: addr=0x%08x chip=%s",  in readRegister()
158     // Given the chip reporting the error and the IOHS position within that  in getChipSourcingClock()
159     // chip, we must get  in getChipSourcingClock()
160     //  - The associated IOHS target on this chip.  in getChipSourcingClock()
161     //  - Next, the IOHS target on the other side of the bus.  in getChipSourcingClock()
162     //  - Finally, the chip containing the IOHS target on the other side of the  in getChipSourcingClock()
180  * @brief Collects TOD fault data for each processor chip.
197         return; // cannot continue on this chip  in collectTodFaultData()
203         return; // cannot continue on this chip  in collectTodFaultData()
224         // Bit positions in some registers are dependent on this topology's  in collectTodFaultData()
228         // Determine if this is the MDMT chip.  in collectTodFaultData()
244                     "TOD MDMT fault found: top=%u config=%u path=%u chip=%s",  in collectTodFaultData()
252         else // not the MDMT on this topology  in collectTodFaultData()
263                 // Get the IOHS unit position on this chip that is connected to  in collectTodFaultData()
264                 // the clock source chip.  in collectTodFaultData()
282                     trace::inf("TOD network fault found: top=%u config=%u "  in collectTodFaultData()
283                                "path=%u chip=%s iohs=%u clockSrc=%s",  in collectTodFaultData()
297             trace::inf("TOD internal fault found: top=%u config=%u chip=%s",  in collectTodFaultData()
312 void tod_step_check_fault(unsigned int, const libhei::Chip& i_chip,  in tod_step_check_fault()
319     for (const auto& chip : chipList)  in tod_step_check_fault()  local
321         tod::collectTodFaultData(chip, data);  in tod_step_check_fault()
325     //  - First, check if the MDMT chip is reporting a fault. If so, it is  in tod_step_check_fault()
328     //  - If MDMT is not reporting a fault, look for any network path errors  in tod_step_check_fault()
329     //    from the non-MDMT chips. In which case, we will want to call out all  in tod_step_check_fault()
332     //  - If no other errors found, callout any chips reporting internal step  in tod_step_check_fault()
351             // Callout the MDMT chip (no guard to avoid fatal guard on primary  in tod_step_check_fault()
360         else if (!networkFaults.empty()) // network path faults  in tod_step_check_fault()
364             // Callout all chips with network errors (no guard to avoid fatal  in tod_step_check_fault()
365             // guard on primary processor when the error could be anywhere in  in tod_step_check_fault()
367             for (const auto& chip : networkFaults)  in tod_step_check_fault()  local
369                 io_servData.calloutTarget(chip, callout::Priority::MED, false);  in tod_step_check_fault()
378             for (const auto& chip : internalFaults)  in tod_step_check_fault()  local
380                 io_servData.calloutTarget(chip, callout::Priority::MED, true);  in tod_step_check_fault()
385     // If no callouts are made, default to calling out the chip that reported  in tod_step_check_fault()