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Vineeth Karumanchi says: ==================== net: macb: Add TAPRIO traffic scheduling support Implement Time-Aware Traffic Scheduling (TAPRIO) offload support for Cadence MACB/GEM ethernet controllers to enable IEEE 802.1Qbv compliant time-sensitive networking (TSN) capabilities. Key features implemented: - Complete TAPRIO qdisc offload infrastructure with TC_SETUP_QDISC_TAPRIO - Hardware-accelerated time-based gate control for multiple queues - Enhanced Scheduled Traffic (ENST) register configuration and management - Gate state scheduling with configurable start times, on/off intervals - Support for cycle-time based traffic scheduling with validation - Hardware capability detection via MACB_CAPS_QBV flag - Robust error handling and parameter validation - Queue-specific timing register programming (ENST_START_TIME, ENST_ON_TIME, ENST_OFF_TIME) Changes include: - Add enst_ns_to_hw_units(): Converts nanoseconds to hardware units - Add enst_max_hw_interval(): Returns max interval for given speed - Add macb_taprio_setup_replace() for TAPRIO configuration - Add macb_taprio_destroy() for cleanup and reset - Add macb_setup_tc() as TC offload entry point - Enable NETIF_F_HW_TC feature for QBV-capable hardware - Add ENST register offsets to queue configuration The implementation validates timing constraints against hardware limits, supports per-queue gate mask configuration, and provides comprehensive logging for debugging and monitoring. Hardware registers are programmed atomically with proper locking to ensure consistent state. Tested on Xilinx Versal platforms with QBV-capable MACB controllers. Signed-off-by: Vineeth Karumanchi <vineeth.karumanchi@amd.com> ==================== Link: https://patch.msgid.link/20250814071058.3062453-1-vineeth.karumanchi@amd.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.