SPRUGR9H November   2010  – April 2015 66AK2E05 , 66AK2H06 , 66AK2H12 , 66AK2H14 , 66AK2L06 , AM5K2E02 , AM5K2E04 , SM320C6678-HIREL , TMS320C6652 , TMS320C6654 , TMS320C6655 , TMS320C6657 , TMS320C6670 , TMS320C6671 , TMS320C6672 , TMS320C6674 , TMS320C6678

 

  1.   Preface
    1.     About This Manual
    2.     Trademarks
    3.     Notational Conventions
    4.     Related Documentation from Texas Instruments
  2. 1Introduction
    1. 1.1  Terminology Used in This Document
    2. 1.2  KeyStone I Features
    3. 1.3  KeyStone I Functional Block Diagram
    4. 1.4  KeyStone II Changes to QMSS
    5. 1.5  KeyStone II QMSS Modes of Use
      1. 1.5.1 Shared Mode
      2. 1.5.2 Split Mode
    6. 1.6  Overview
    7. 1.7  Queue Manager
    8. 1.8  Packet DMA (PKTDMA)
    9. 1.9  Navigator Cloud
    10. 1.10 Virtualization
    11. 1.11 ARM-DSP Shared Use
    12. 1.12 PDSP Firmware
  3. 2Operational Concepts
    1. 2.1 Packets
    2. 2.2 Queues
      1. 2.2.1 Packet Queuing
      2. 2.2.2 Packet De-queuing
      3. 2.2.3 Queue Proxy
    3. 2.3 Queue Types
      1. 2.3.1 Transmit Queues
      2. 2.3.2 Transmit Completion Queues
      3. 2.3.3 Receive Queues
      4. 2.3.4 Free Descriptor Queues (FDQ)
        1. 2.3.4.1 Host Packet Free Descriptors
        2. 2.3.4.2 Monolithic Free Descriptors
      5. 2.3.5 Queue Pend Queues
    4. 2.4 Descriptors
      1. 2.4.1 Host Packet
      2. 2.4.2 Host Buffer
      3. 2.4.3 Monolithic Packet
    5. 2.5 Packet DMA
      1. 2.5.1 Channels
      2. 2.5.2 RX Flows
    6. 2.6 Packet Transmission Overview
    7. 2.7 Packet Reception Overview
    8. 2.8 ARM Endianess
  4. 3Descriptor Layouts
    1. 3.1 Host Packet Descriptor
    2. 3.2 Host Buffer Descriptor
    3. 3.3 Monolithic Descriptor
  5. 4Registers
    1. 4.1 Queue Manager
      1. 4.1.1 Queue Configuration Region
        1. 4.1.1.1 Revision Register (0x00000000)
        2. 4.1.1.2 Queue Diversion Register (0x00000008)
        3. 4.1.1.3 Linking RAM Region 0 Base Address Register (0x0000000C)
        4. 4.1.1.4 Linking RAM Region 0 Size Register (0x00000010)
        5. 4.1.1.5 Linking RAM Region 1 Base Address Register (0x00000014)
        6. 4.1.1.6 Free Descriptor/Buffer Starvation Count Register N (0x00000020 + N×4)
      2. 4.1.2 Queue Status RAM
      3. 4.1.3 Descriptor Memory Setup Region
        1. 4.1.3.1 Memory Region R Base Address Register (0x00000000 + 16×R)
        2. 4.1.3.2 Memory Region R Start Index Register (0x00000004 + 16×R)
        3. 4.1.3.3 Memory Region R Descriptor Setup Register (0x00000008 + 16×R)
      4. 4.1.4 Queue Management/Queue Proxy Regions
        1. 4.1.4.1 Queue N Register A (0x00000000 + 16×N)
        2. 4.1.4.2 Queue N Register B (0x00000004 + 16×N)
        3. 4.1.4.3 Queue N Register C (0x00000008 + 16×N)
        4. 4.1.4.4 Queue N Register D (0x0000000C + 16×N)
      5. 4.1.5 Queue Peek Region
        1. 4.1.5.1 Queue N Status and Configuration Register A (0x00000000 + 16×N)
        2. 4.1.5.2 Queue N Status and Configuration Register B (0x00000004 + 16×N)
        3. 4.1.5.3 Queue N Status and Configuration Register C (0x00000008 + 16×N)
        4. 4.1.5.4 Queue N Status and Configuration Register D (0x0000000C + 16×N)
    2. 4.2 Packet DMA
      1. 4.2.1 Global Control Registers Region
        1. 4.2.1.1 Revision Register (0x00)
        2. 4.2.1.2 Performance Control Register (0x04)
        3. 4.2.1.3 Emulation Control Register (0x08)
        4. 4.2.1.4 Priority Control Register (0x0C)
        5. 4.2.1.5 QMn Base Address Register (0x10, 0x14, 0x18, 0x1c)
      2. 4.2.2 TX DMA Channel Configuration Region
        1. 4.2.2.1 TX Channel N Global Configuration Register A (0x000 + 32×N)
        2. 4.2.2.2 TX Channel N Global Configuration Register B (0x004 + 32×N)
      3. 4.2.3 RX DMA Channel Configuration Region
        1. 4.2.3.1 RX Channel N Global Configuration Register A (0x000 + 32×N)
      4. 4.2.4 RX DMA Flow Configuration Region
        1. 4.2.4.1 RX Flow N Configuration Register A (0x000 + 32×N)
        2. 4.2.4.2 RX Flow N Configuration Register B (0x004 + 32×N)
        3. 4.2.4.3 RX Flow N Configuration Register C (0x008 + 32×N)
        4. 4.2.4.4 RX Flow N Configuration Register D (0x00C + 32×N)
        5. 4.2.4.5 RX Flow N Configuration Register E (0x010 + 32×N)
        6. 4.2.4.6 RX Flow N Configuration Register F (0x014 + 32×N)
        7. 4.2.4.7 RX Flow N Configuration Register G (0x018 + 32×N)
        8. 4.2.4.8 RX Flow N Configuration Register H (0x01C + 32×N)
      5. 4.2.5 TX Scheduler Configuration Region
        1. 4.2.5.1 TX Channel N Scheduler Configuration Register (0x000 + 4×N)
    3. 4.3 QMSS PDSPs
      1. 4.3.1 Descriptor Accumulation Firmware
        1. 4.3.1.1 Command Buffer Interface
        2. 4.3.1.2 Global Timer Command Interface
        3. 4.3.1.3 Reclamation Queue Command Interface
        4. 4.3.1.4 Queue Diversion Command Interface
      2. 4.3.2 Quality of Service Firmware
        1. 4.3.2.1 QoS Algorithms
          1. 4.3.2.1.1 Modified Token Bucket Algorithm
        2. 4.3.2.2 Command Buffer Interface
        3. 4.3.2.3 QoS Firmware Commands
        4. 4.3.2.4 QoS Queue Record
        5. 4.3.2.5 QoS Cluster Record
        6. 4.3.2.6 RR-Mode QoS Cluster Record
        7. 4.3.2.7 SRIO Queue Monitoring
          1. 4.3.2.7.1 QoS SRIO Queue Monitoring Record
      3. 4.3.3 Open Event Machine Firmware
      4. 4.3.4 Interrupt Operation
        1. 4.3.4.1 Interrupt Handshaking
        2. 4.3.4.2 Interrupt Processing
        3. 4.3.4.3 Interrupt Generation
        4. 4.3.4.4 Stall Avoidance
      5. 4.3.5 QMSS PDSP Registers
        1. 4.3.5.1 Control Register (0x00000000)
        2. 4.3.5.2 Status Register (0x00000004)
        3. 4.3.5.3 Cycle Count Register (0x0000000C)
        4. 4.3.5.4 Stall Count Register (0x00000010)
    4. 4.4 QMSS Interrupt Distributor
      1. 4.4.1 INTD Register Region
        1. 4.4.1.1  Revision Register (0x00000000)
        2. 4.4.1.2  End Of Interrupt (EOI) Register (0x00000010)
        3. 4.4.1.3  Status Register 0 (0x00000200)
        4. 4.4.1.4  Status Register 1 (0x00000204)
        5. 4.4.1.5  Status Register 2 (0x00000208)
        6. 4.4.1.6  Status Register 3 (0x0000020c)
        7. 4.4.1.7  Status Register 4 (0x00000210)
        8. 4.4.1.8  Status Clear Register 0 (0x00000280)
        9. 4.4.1.9  Status Clear Register 1 (0x00000284)
        10. 4.4.1.10 Status Clear Register 4 (0x00000290)
        11. 4.4.1.11 Interrupt N Count Register (0x00000300 + 4xN)
  6. 5Mapping Information
    1. 5.1 Queue Maps
    2. 5.2 Interrupt Maps
      1. 5.2.1 KeyStone I TCI661x, C6670, C665x devices
      2. 5.2.2 KeyStone I TCI660x, C667x devices
      3. 5.2.3 KeyStone II devices
    3. 5.3 Memory Maps
      1. 5.3.1 QMSS Register Memory Map
      2. 5.3.2 KeyStone I PKTDMA Register Memory Map
      3. 5.3.3 KeyStone II PKTDMA Register Memory Map
    4. 5.4 Packet DMA Channel Map
  7. 6Programming Information
    1. 6.1 Programming Considerations
      1. 6.1.1 System Planning
      2. 6.1.2 Notification of Completed Work
    2. 6.2 Example Code
      1. 6.2.1 QMSS Initialization
      2. 6.2.2 PKTDMA Initialization
      3. 6.2.3 Normal Infrastructure DMA with Accumulation
      4. 6.2.4 Bypass Infrastructure notification with Accumulation
      5. 6.2.5 Channel Teardown
    3. 6.3 Programming Overrides
    4. 6.4 Programming Errors
    5. 6.5 Questions and Answers
  8. AExample Code Utility Functions
  9. BExample Code Types
  10. CExample Code Addresses
    1. C.1 KeyStone I Addresses:
    2. C.2 KeyStone II Addresses:
  11.   Revision History

4.3.3 Open Event Machine Firmware

The Open Event Machine (OEM) firmware accomplishes static and dynamic load balancing of CorePacs. It does this by running a job scheduler in one or more PDSPs, and a job dispatcher in each CorePac where jobs are to be run. Jobs are pushed into QMSS queues, which are monitored by the OEM firmware, popped based on priority and other scheduler conditions, then recycled by the dispatcher tasks. Due to the complexity of OEM, a separate user guide is maintained for it. Please see it for programming information.
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