KLINI ErrorSpec Apr83

This document, the "KLNI ERROR SPEC" (Revision 0.4, dated 4/20/83 by Joe Holewa), is a technical specification outlining the interpretation and handling of various errors within the KLNI system and its associated components (NI wire, H4000 transceiver, and PLUTO).

The document is structured to define each error type with respect to:

• Detection: How the error is identified by hardware or microcode.
• Reporting: How the error is communicated (e.g., to the console, ERROR.SYS, or the MONITOR, often including specific alerts and diagnostic data).
• Action/Recovery: The prescribed procedures for handling or recovering from the error, which can involve reloading modules, restarting components, aborting operations, or, in severe cases, shutting down the KLIPA.

Errors are broadly categorized into two main sections:

1. KLIPA PORT ERRORS: These include various parity errors (CRAM, EBUS, PLI, MOVER, CBUS), MBUS errors, Channel Errors (address, NXM, memory parity, short word count), and conditions related to system availability and requests (CCEUSAVAIL, CCEBUSRQST, CCGRANTCSR).
2. KLNI ERRORS: This section covers a range of transmit and receive issues, such as transmit parity errors, initialization failures, send failures due to excessive collisions, carrier check failures, collision detect check failures, short/open circuits, frames being too long or remote failures to defer. Receive failures include block check errors, framing errors, data overruns, user buffer unavailability, unrecognized frame destinations, and received frames being too long.

The document is intended to serve as a reference for error analysis, coding for error handling, reporting, and recovery procedures for the working group involved with the KLNI system.