On Thu, Feb 16, 2017 at 06:08:59AM +0530, Hemant Agrawal wrote: > The patch series adds NXP’s QorIQ-Layerscape DPAA2 Architecture based > fsl-mc bus driver and network SoC PMD. This version of the driver > supports NXP LS208xA, LS204xA and LS108x families Network SoCs. > > DPAA2, or Data Path Acceleration Architecture, is a hardware architecture > designed for high-speed network packet processing. It uses a bus name > ‘fsl-mc’, part of Linux Kernel Staging tree [1], for resource management. > > A brief description of architecture is given below; detailed description > is part of the documentation in the patches itself. > > DPAA2 contains hardware component called the Management Complex (or MC). > It manages the DPAA2 hardware resources. The MC provides an object-based > abstraction for software drivers to use the DPAA2 hardware. > > Some of the key objects are: > - DPNI, which refers to the network interface object. > - DPBP, which refers to HW based memory pool object > - DPIO, refers to processing context for accessing QBMAN > > Besides the MC, DPAA2 also includes a Hardware based Queue and Buffer Manager > called QBMAN. Prime responsibility of QBMAN is to allow lockless access to > software/user-space to the queues and buffers implemented in the hardware. > > The patch series could be logically structured into following sub-areas: > 1. Make file changes for crc in armv8 core machine type and driver dependency > 2. Common dpaa2 hw accelerator drivers for QBMAN. > 3. Indroducing fsl-mc bus as rte_bus, it's componenets. > 4. Introducing dpaa2 pmd driver > 5. Introducing dpaa2 mempool > 6. Support for DPAA2 Ethernet Device (ethdev) > 7. Additional functionality in DPAA2 ethdev. > > The following design decisions are made during development: > > 1. DPAA2 implements a new bus called "fsl-mc" and some common accelerator > drivers. > These drivers will be shared with dpaa2 based crypto drivers. > > 2. DPAA2 implements the HW mempool offload with DPBP object. > - The new pool is being configured using compile time option and pool name > as "dpaa2". > > 3. It maintains per lcore DPIO objects and affine the DPIO instance to the > processing threads accessing the QBMAN HW. > > Prerequisites: > - For running the PMD, NXP's SoC (board) and SDK (software/BSP) is required. > Information about obtaining relevant software is available in the docs > as part of the patch.
NAK. The SDK requires registration to obtain, and appears to be non-open source. This driver is unmaintainable given that. Neil
