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Broadcom switch SDK介绍文档.pdf

发布时间：2022-06-14 发布人：admin 分类：说明书 资料大小：0.73M 资料格式：pdf 举报 版权申诉
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    SDK
    Portable
    Portable (cont.)
    Portable (cont.)
    The Grand View
    SDK Components
    SDK 5 Overview
    SDK 5 API Architecture
    System Abstraction Layer Components (SAL)
    SOC Layer Components
    BCM Layer Components
    SDK 5 Directory Organization
    Source
    BCM
    System Abstraction (SAL)
    Appl
    Header
    Header Files
    Board Support Package (BSP)
    Board Support Package Software Block Diagram
    Driver Initialization
    Init Software Modules
    BCM API Calling
    Init Sequence
    Init Sequence (cont.)
    Init Sequence (cont.)
    bcm multiplex
    bcm multiplex
    Software Cache Table Read
    Software Cache Table Write
    System memory allocation
    ISR connecting
    Interrupt Handle
    Interrupt Handlers
    Threads in SDK5
    Link scan thread
    Link scan thread
    Counter Task Control
    Counter Thread
    L2x shadow
    L2x shadow
    bcmTX Thread
    Rx thread
    Packet Tx/Rx
    Transmitting a packet
    BCM Tx Overview
    BCM Tx Flags
    BCM Tx Flags
    bcmTX thread
    Packet transmit overview
    Receiving a packet
    BCM Rx Overview
    CPU Packet Receive Rate Limit
    BCM Rx Flow
    Packet Receive interrupt mode
    Documentation
    Questions?
    Thank You !
    SDK Introduction Asia Applications Engineering BROADCOM PROPRIETARY & CONFIDENTIAL 1
    SDK • Complete software distribution – Reference code (the API libraries) – Sample system code (BSPs) – Sample applications • Runs on Broadcom SRDs A complete, portable software distribution that runs on Broadcom SRDs under the control of a supported OS – Compiles out-of-the-box and will run on our SRDs – Customers might need to port it to their own systems • Under the control of a supported OS – As with any other driver or application, a customer will need • An OS • A toolchain required by your OS in order to compile the software – A number of popular OSes are supported out-of-the-box – If a customer uses a different OS, the SDK has to be ported to it BROADCOM PROPRIETARY & CONFIDENTIAL 2
    Portable • OS-independent – The System Abstraction Layer (SAL) is used to abstract from the underlying OS services: • thread creation and management • semaphores • memory allocation • timers • etc. runtime • Memory mapped register access • DMA-able memory allocation • Cache flush/invalidate • etc. – The Configuration Manager binds the driver to hardware access routines at BROADCOM PROPRIETARY & CONFIDENTIAL 3
    Portable (cont.) • Supported OSes – VxWorks (5.4, 5.5 and 6.x) – Linux 2.4 (kernel and user mode) – Linux 2.6 (kernel and user mode) – eCos • Successful ports by customers to: – QNX – BSD – pSOS – Nucleus BROADCOM PROPRIETARY & CONFIDENTIAL 4
    Portable (cont.) • Supported CPUs – MPC8240, MPC8245 (PPC32) – BCM5836 (MIPS32, non cache-coherent) – BCM1125 (MIPS32 and MIPS64) – BCM8548 • Successful ports by customers to: – PPC405 and PPC440 – i386 – MPC8260, MPC8270 – others • Both 32- and 64-bit CPUs are supported • No floating point is used • Both cache coherent and non-coherent systems are supported BROADCOM PROPRIETARY & CONFIDENTIAL 5
    The Grand View Customer Applications BRCM Applications Diag Diag Shell Shell Tests Tests Stacking Stacking Software suite Software suite BCMX API BCM API C o n f i g M a n a g e r SOC API Core SAL Appl. SAL RTOS BSP BCM 56XX BCM 56XXX BCM 53XX BROADCOM PROPRIETARY & CONFIDENTIAL 6
    SDK Components • Sample Applications – Use the reference libraries to implement certain functionality Broadcom Sample Applications BCM Diagnostic Shell Diagnostic test suite Linux network interface driver Broadcom Reference Libraries BCM API BCMX API Stacking Software Suite Broadcom Low-level (support) Libraries Core SAL Application SAL SOC Broadcom Sample System Software Broadcom Device Enumerator (BDE) Linux module skeleton VxWorks BSPs Additional Device Drivers • Reference Libraries – The “core IP” – Mechanism, not policy – System-independent • Sample System Software – sample implementation of access methods and policies required by the reference code BROADCOM PROPRIETARY & CONFIDENTIAL 7
    SDK 5 Overview System Applications System Applications Customer Management Software Stacking API Stacking API Dynamic Multibox Stacking Support BCMX BCMX Multiple Device Control Multiple Device Control Uniform API for System Applications Single unified view of multiple devices Local and remote device support BCM API BCM API Dispatch Dispatch BCM56xxx BCM56xxx Device Control Device Control BCM53xx BCM53xx Device Control Device Control System Abstraction Layer System Abstraction Layer Core Device API Multiple Chip Implementation Support Device Control implementations Strata™ II, XGS™, XGS II™, XGS III™ RoboSwitch™ BROADCOM PROPRIETARY & CONFIDENTIAL 8
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