Manuals / Ciprico / Computer Equipment / Network Card

Ciprico Rimfire 3880 manual Target Mode Error Sequence Codes

Models: Rimfire 3880

1 230

Download 230 pages 41.83 Kb

Page 124

	Chapter 6 Target Mode Pass-through Commands
Page 6 - 22	Target Mode Response Command Status Block

Error Sequence Code - The Error Sequence Code tells you, according to the following table, where in the process an unrecoverable error occurred, or a Message Byte was sent from the initiator.

Sequence

Description

0No message was received.

1Message received after the RF3880 sent the First Message Byte.

2Message received after sending the Message Byte.

3Message received after sending the Queue Tag Message.

4Message received after a Data Transfer phase.

5Message received after Selection phase.

6Message received after sending the Identify message.

7Message received after a Command phase.

8Message received in response to SDTR message.

9Message received in response to WDTR message.

Table 56: Target Mode Error Sequence Codes

Command Descriptor Block Length

This byte indicates the number of command bytes that were received from the initiator, and have been passed on in the CDB fields of the Target Mode Response command Status Block. If the CMD bit is clear (in the Command Status Flags field), this field is invalid.

Message Byte Received

At any time, the initiator may assert ATN, and cause the adapter to read in a Message byte in response. The adapter will place the Message Byte in this field and return the proper status. If the MSG bit is clear (in the Command Status Flags field), this field is invalid. Also, the value of the Error Sequence Code must be considered when examining the Message Byte. The Error Sequence Code describes where in the process the Message Byte was sent from the initiator.

SCSI CDB fields

These bytes contain the SCSI 6, 10, or 12 byte command received from the initiator as a result of the CMD bit or the LSC bit in the Target Mode Response command Response Control Flags field being set. If the CMD bit is clear (in the Command Status Flags field), this field is invalid.

21020285 D

User’s Guide

Image 124

Ciprico Rimfire 3880 manual Target Mode Error Sequence Codes

Contents

Rimfire 3880 Scsi Host Bus Adapter Page Page 21020285 D User’s Guide Preface Organization Organization Initiator Mode Pass-through Commands DescribesOverview of the RF3880 User’s Guide Conventions Notational GraphicConventions Graphic Representation of Parameter BlockReference Documents 21020285 D Reference DocumentsContents Scsi ID Status Block Format LUN LUN Table of Contents Description of Fields Command Identifier Diagnostic/Self-test 09H Table of Contents Table of Contents Introduction Summary Specifications Index O d u c t O v e r v i e w Latest Bus Specifications About Rimfire DesignBuffering scheme Product Overview About the Rimfire 3880 DesignTarget Mode Implementation Buffer ManagementWhat next? Product Overview What next?R d w a r e E s s e n t i a l s Summary IntroductionHardware Essentials Introduction Hardware Structure Description Intel 80186XLQLogic FAS Pipelined System Interface Data BufferHardware Essentials Block DiagramGenerator blocks are part of the PSI Board Addressing Choosing an Address ModifierChoosing a VMEbus Address Hardware Essentials Board AddressingHardware Port Addresses Overview of the PortsHardware Essentials Hardware Ports General Hardware Port AddressesHardware Essentials Hardware Ports General Address Buffer Port Hardware Essentials Address Buffer PortAddress Buffer Port Writes Address Modifier FieldHardware Essentials Address Buffer Port Control Field Control Field of Address Buffer PortChannel Attention Port Single Command Structure Address FieldsHardware Essentials Channel Attention Port Channel Format Channel AttentionStatus Port Reset Format Status Port ResetStatus Port Hardware Essentials Status PortStatus Port Error Codes Status Port Error CodesStatus Port General Format Status Port GeneralStatus Port Catastrophic Error Codes Chapter Hardware Essentials Status PortReset Port Hardware Essentials Reset PortDescriptions of Port Usage Hardware Essentials Descriptions of Port UsageHardware Essentials R d w a r e Installation Hardware Installation Introduction Overview Installation Process Step Unpacking Board Hardware Installation Unpacking the BoardShipping Damage Unpacking the Board Hardware Installation Jumpers and Termination Step Jumpers TerminationConfiguration Jumpers Default Jumper SettingsBus Request/ Grant Jumper Bus Request/Grant and Sysfail JumpersSysfail JumperExample Base Address Jumper Settings ExampleAddresses For the Address Modifier JumperReplacement Fuse Scsi bus TerminationHardware Installation Board Insertion General StepsHardware Installation Apply power and observe LEDs Power-up SequenceMeaning LED’s Error Conditions Step Configure Connect Scsi Devices Hardware Installation Configure and Connect Scsi DevicesSelectable Options OptionsScsi Cable Connector CablingHardware Installation M m a n d O p e r a t i o n Command Operation Introduction Command Operation What the Adapter must accomplish What the Adapter must accomplishBase ParameterBlock ParameterCommand Descriptor Block Command Operation Base Status Block Base Status BlockStatus Block Format Base Status BlockCommand Operation Base Status Block Setting up Unit Options Multiple Status BlocksSingle Command Structure Format Single Command StructureCommand Operation Single Command Structure Parameter BlockCommand Operation Single Command Structure Interrupt Bit-meanings of Interrupt FieldUsing a Single Command Structure Command Operation Using a Single Command StructureSome Example Single Commands Example Start Command List Board-controlCommand Operation Some Example Single Commands Command Identifier = 822F4HCommand = 01H Interrupt = 0300H21020285 D User’s Guide Example 2Inquiry Pass-through Command Example Pass-through command PBCommand Operation Command Operation Some Example Single Commands Format Command List Structure Command List StructureDescription of the Fields Number of Parameter Blocks Number of Status BlocksParameter Block Space Status Block SpaceCreating Command List Structure Command Operation Creating the Command List StructureUsing a Command List Structure Command GuidelinesCommand Operation Using a Command List Structure Index GuidelinesAdding a Parameter Block Removing a Status Block Example ‘C’ Routines for Command List Command Operation Example ‘C’ Routines for Command ListStcdone Command Operation Example ‘C’ Routines for Command List Command Operation I t i a t o r t h r o u g h D e P a s s C o m m a n d s Initiator Mode Pass-through Commands Introduction Introduction SummaryCommand Format Initiator Pass- through Parameter Block FormatTarget ID Address ModifierBit-meanings of Flags-1 Field Example DAT and DIR bit settings Setting DBV DAT and DIR Bits Using Table ValuesDIR and DAT Settings, Vendor-unique Table of DAT DIR Automatic Settings DAT and DIR Automatic Settings4EH Initiator Mode Pass-through Commands Bit-meanings of Flag-2 Field Flags-2Meaning of TAG Opts Bits VME Memory Address Scsi Command Descriptor BlockTransfer Count Pass-through Message Parameter Block Message FormatMessage Code Scsi Pass-through Status Block Description of FieldsBit-meanings of Flags Field Error Bit-meanings of Scsi Status Field Scsi Status Field during Unexpected Scsi PhaseMeaning of Status Byte Code Three signals. This is described below Meaning of Status Byte Unexpected PhaseUp to 32 Sequential Sense Bytes Default Ordering of Sense BytesOrdering of 1st 16 Sequential Sense Bytes Example of Selected Sense Bytes Initiator Mode Pass-through Commands R g e t t h r o u g h D e P a s s C o m m a n d s Target Mode Pass-through Commands Introduction What is Target Mode? Target Mode Pass-through Commands Overview of Target ModeAdapter must have a means of handling Scsi protocol issues Target Mode Pass-through CommandsWhat must the adapter accomplish in Target Mode? Overview Special Target Mode Commands New commandsTarget Mode Enable Command Target Mode Disable CommandCommand Descriptor Block Group Codes Scsi Command Descriptor Block GroupsSequence Events Enabling Target Mode Command OperationTarget Mode Pass-through Commands Command Operation Sequence Events Receiving a Command From an Initiator Sequence of Events Responding to an Initiator Target Selection Data Structure Target Selection Data StructureMeaning of Flags Field Meaning of Scsi Flags Field Command Descriptor Block Length Identify Message ReceivedInitiator Identifier Message Bytes ReceivedSemaphore Field Target Mode Response Parameter Block Target Mode Response CommandInitiator ID ⇒ Target Mode Response command Meaning of Response Control Flags Field Message Byte Status or 1st Message ByteFirst TM Response Command Status Block Target Mode Response Command Status BlockSecond TM Response Command Status Block Meaning of Status Block Flags Field Meaning of Command Status Flags Field Target Mode Error Sequence Codes Message Byte ReceivedA r d c o n t r o l C o m m a n d s Board-control Commands Introduction Using the Reference Board-control Commands Using the ReferenceBoard-control Commands General Status Block General Status BlockGeneral Status Block Format General Status BlockBoard-control Commands List of Commands List of CommandsBoard-control Commands Board-control Commands Start Command List 01H Start Command List Parameter BlockCommand List Memory Address Adapter IDBoard-control Commands Start Command List 01H Interrupt Command CodeBoard-control Commands Stop Command List 02H Stop Command List Parameter BlockIdentify Command Parameter Block Board-control Commands Identify 05HIdentify 05H Identify Command Status Block Identify Command Status BlockEngineering Revision Firmware RevisionBoard-control Commands Identify 05H Option Flags Option Flags Field Identify Status BlockAdapter Scsi ID Bits Day, Month, YearBoard Statistics Command Parameter Block Board-control Commands Board Statistics 06HBoard Statistics 06H Board-control Commands Board Statistics 06H Options Options FieldTotal Commands Processed Total Scsi Commands issued to an IDTarget Mode Selection Count Statistics Data StructureCommand Format Description of Fields Board-control Commands General Options 07HGeneral Options Command Parameter Block General Options 07HBus Throttle Bus Throttle Field ValuesSelect Flags Select Flags ByteCommand code for this command is 07H Board-control Commands Unit Options 08H Unit Options Command Parameter BlockUnit Options 08H Unit Scsi IDBoard-control Commands Unit Options 08H Disconnect Time-out Retry LimitRetry Control Retry ControlUnit Flags Select Time-outUnit Flags Initiator Mode Sense CountSelected Sense Bytes Example Use of Selected Sense Bytes Fields Example Selection of Sense BytesDiagnostic/ Self-test 09H Board-control Commands Diagnostic/Self-test 09HDiagnostic/Self-test Parameter Block Diagnostics Command Test Flags FieldCommand code for this operation is 09H Flags Byte Diagnostic Command Status BlockBit-meanings of Flags Byte in Status Block Target Mode Enable 0AH Board-control Commands Target Mode Enable 0AHTarget Mode Enable Parameter Block Pointer to the Target Selection Data StructureMeaning of Selection Interrupt Field Target Mode Disable 0BH Board-control Commands Target Mode Disable 0BHTarget Mode Disable Parameter Block Meaning of Flags-1 FieldBoard-control Commands Abort 0DH Command Identifier of CMD to be AbortedAbort 0DH Abort Parameter BlockBoard-control Commands Scsi Hard Reset 10H Scsi Hard Reset 10HScsi Hard Reset Parameter Block Board-control Commands Board Information 15H Board Information 15HBoard-control Commands Board Information 15H Options Board Information Data StructureBoard Information Options Field Board Information Data StructureBoard Information Select Flags Field Board-control Commands Board Information 15H Bus Throttle Board-control Commands Board Information 15H Option Flags RST Reset JumperScsi Cfig Block Board-control Commands Board Information 15H TerminationAdapter Base Model # Per Target Retry Limit Per Target Sense CountPer Target Device Flags Bit-meanings of Device Flags FieldPer Target Synch Period Per Target Width Per Target Selected Sense BytesExtended Board Statistics 16H Board-control Commands Extended Board Statistics 16HExtended Board Statistics Parameter Block Board-control Commands Extended Board Statistics 16H Options Extended Board Options FieldTotal Commands Issued Number of Scsi Parity ErrorsPer Scsi Target Number of Commands Extended Statistics Data StructurePer Scsi Target Queue Full Count Board-control CommandsPer Scsi Target Maximum Queued Extended Unit Options 18H Board-control Commands Extended Unit Options 18HExtended Unit Options Parameter Block Extended Unit Options Data Structure Description of Fields Extended Unit Options Data StructureBit-meanings of Retry Control Field Board-control Commands Extended Unit Options 18H Unit Flags Unit Flags of Extended Unit OptionsBoard-control Commands Extended Unit Options 18H Selected Sense Bytes T a i l s o f U s a g e Details of Usage Introduction Need for Swapping Details of Usage Byte and Word SwappingExample of Memory Differences Variations in Intel and Motorola MemoryPass-through command Parameters Intel Ordering Motorola OrderingRF3880 Swapping Options Command Structure SwappingIntel Ordered Parameter Block Sharing Tapes Data SwappingDual Initiators How to Use TaggedQueuing TaggedMeaning of Flags-2 Field Details of Usage Tagged Queuing Choose a tag messageRF3880 sends the tag message Usage Queue Tag NumbersQueue Full Status Message RejectScsi Bus Reset Handling Target Mode Usage Scsi Protocol HandlingSelection Queue Target Mode Disable Command Handling Abort Command Handling Synchronous Data Transfer RequestsWide Data Transfer Requests Parity error conditions Message parity errorsInitiator-detected Error messages Target RoutinesMessage Handling Disconnect PrivilegeMessage Bytes Received from the Initiator 21020285 D User’s Guide User’s Guide 21020285 D Details of Usage Error codes Appendix a Error Codes Introduction Status Block Error CodesCodes Reported in Status Block and Status Port Appendix a Error Codes Summary Error CodesAppendix a Error Codes 2BHA1H Catastrophic Error Codes Status Port Error CodesAppendix a Error Codes Status Port Error Codes Self-test Error Codes Diagnostic Command Self-test Status Port Error Codes 8CHB l e s a n d C o n n e c t o r s Appendix B Cables and Connectors Introduction Connector Appendix B Cables and Connectors Scsi ConnectorCable Connector Pin-outs for the RF3886 Maximum Cable LengthAppendix B Cables and Connectors VMEbus Connector Pinouts VMEbus Connector PinoutsP1 Connector P2 Connector RetryAppendix B Cables and Connectors Specification s Appendix C Specifications Introduction Appendix C Specifications SpecificationsSpecifications for the Rf3880 Appendix C Specifications 21020285 D User’s Guide Fault s Appendix D Defaults Introduction Hardware Defaults Appendix D Defaults Hardware DefaultsHardware Defaults Jumpers Defaults for Hardware PortsAppendix D Defaults DefaultsCommand Defaults TAG Appendix D Defaults S i g n D i f f e r e n c e s Appendix E Design Differences Introduction Features no longer Supported Appendix E Design Differences Features no longer SupportedScatter/Gather Operations Byte and Word Swapping of DataStatus Port Error Codes and Test Flags Appendix E Design Differences Implementation DifferencesWidth of Data Transfers on the VMEbus Extended Scsi ID’sBlock Mode Transfers Scsi Data WidthsHow to Maximize Performance Odd-byte AddressingD e Index User’s Guide 21020285 D PSI Scsi ID Index Page 21020285 D