Emerson MVME147 User Manuals

Table of Contents

• GENERAL INFORMATION

  1
• Introduction

  1
• Features

  1
• Modes of Operation

  1
• MVME147 SCSI Firmware Entry Points

  2
• Equipment Supported

  4
• Related Documentation

  8
• Manual Terminology

  9
• CUSTOM SCSI PACKETS

  11
• Introduction

  11
• Initiator Role Custom Packet

  11
• TARGET Enable Custom Packet

  29
• TARGET Sequence Custom Packet

  32
• PACKET RETURN STATUS

  41
• Packet Return Status

  41
• SCSI FIRMWARE INTERRUPT STRUCTURE

  53
• SCSI Firmware Interrupt Structure

  53
• WRITING A DRIVER

  55
• Introduction

  55
• Building the Packet

  56
• Passing Commands to the SCSI Firmware

  56
• Interface Rules for the SCSI Firmware

  56
  • Interface Rules for Multiple Callers

    57
  • Interface Rules for a Single Caller

    67
• TARGET ROLE ROUTINES

  69
• Introduction

  69
• MVME147 SCSI Firmware Background

  69
• SCSI Versus SASI Rules

  70
• MVME147 SCSI Firmware TARGET Role Structure Requirements

  70
  • Custom Sequence Packet

    70
  • Script

    71
  • Command Table

    71
• Enabling TARGET Role

  72
• Servicing the TARGET Requests

  74
• SCSI PACKETS

  81
• Introduction

  81
• Read/Write Packet

  82
  • DMA Scatter/Gather Table Entry

    89
• Attach/Detach Packet (all devices)

  90
• Format Packet

  112
• Assign Alternate Sector Packet (SCSI)

  113
• SCSI Bus Reset Packet

  119
• SCSI Controller Reset Packet

  121
• Erase Packet

  121
• Rewind Packet

  123
• Read Block Limits Packet

  125
• Space (Blocks, Filemarks, End of Recorded Media) Packet

  126
• Write Filemarks Packet

  129
• Verify CRC Packet

  131
• Tape Mode Select/Sense Packet

  132
• Inquiry Packet

  135
• Load/Unload Packet

  139
• Recover Buffer Data Packet

  141
• Request Sense Data Packet

  143
• Check Status Packet

  145
• Open Packet

  146
• COMMON COMMAND SET AND DISK OPERATION

  149