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-# diagnosticlink
-DiagnosticLink
+# DiagnosticLink
+
+DiagnosticLink is a desktop application that enables debugging and managing CXL
+modules using a convenient graphical interface.
+
+Managing and debugging Compute Express Link (CXL) modules has become crucial to
+ensuring optimal performance and reliability in the rapidly evolving computing
+landscape. Addressing this need, we are excited to announce the launch of a
+cutting-edge GUI application designed to streamline the enabling and debugging
+of CXL modules. We developed this tool to revolutionize how developers and
+engineers interact with CXL controllers and firmware, providing a comprehensive
+suite of features to enhance productivity and efficiency.
+
+## Features
+
+**Local and Remote Operation**
+
+Users can operate the application locally on a server or their laptop. For
+remote operations, the application seamlessly connects to a server, offering
+flexibility and convenience.
+
+![Local and Remote Operation](doc/local_or_remote.png)
+
+**Connection Management**
+
+Users can establish new connections by selecting from various transport methods,
+including in-band (side-band, and UART planned). Each connection is uniquely
+identified by a combination of server and device, allowing users to manage
+multiple connections simultaneously.
+
+![Command Execution](doc/connection_management.png)
+
+**Command Execution**
+
+The application supports sending any CXL specification-defined and
+vendor-specific (VS) commands, providing comprehensive control over device
+operations.
+
+![Command Execution](doc/command_execution.png)
+
+**System and Device Information**
+
+Users can access detailed information about the system and connected devices.
+The application also features a graphical representation of the status of all
+NUMA nodes, offering a clear and intuitive overview and demonstrating our
+innovation in presenting data in a user-friendly manner.
+
+![Command Execution](doc/system_and_device_information.jpg)
+
+**PCIe Eye Status Analysis**
+
+The tool lets users capture and analyze PCIe eye status, facilitating in-depth
+diagnostics and performance tuning.
+
+![Command Execution](doc/pcie_status_analysis.jpg)
+
+**Firmware Updates and Log Capture**
+
+The application allows for seamless firmware updates and real-time log capture,
+including vendor debug logs and event records, ensuring that users can access
+critical information for troubleshooting and optimization.
+
+## Supported CXL Modules
+
+- CZ120: https://www.micron.com/products/memory/cxl-memory
+- CZ122: https://www.micron.com/about/blog/applications/data-center/introducing-micron-cz122-and-red-hat-certification-of-memory-expansion-portfolio
+
+## Getting Started
+
+DiagnosticLink is a self-contained exe that attempts to minimize the steps
+required to get up and running. However, there are some system dependencies
+required:
+
+### Linux Prerequisites
+
+A linux desktop is required to run the GUI. Only a terminal is required to run the server
+libEGL / libEGL-mesa
+
+### Ubuntu for GUI
+
+```apt install libgles2-mesa-dev libxkbcommon-x11-0 libxcb-cursor0 libxcb-randr0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-render-util0 libxcb-xkb-dev```
+
+### Windows Prerequisites
+
+As of now there are no known prerequisites for Windows. The exe should be entirely self-contained.
+
+## Running Locally on Linux
+
+Linux is the only OS that currently supports In-Band hardware access. Just
+execute the binary to run in GUI mode:
+
+`sudo ./DiagnosticLink`
+
+## Running Remotely on Linux or Windows
+
+You can run a DL server on linux with administrator privileges like this:
+If you want to run a server only you can do:
+
+`sudo ./DiagnosticLink --server [--port NNNN]`
+
+This will open a TCP port on the host system that you can connect to
+from the UI running on a client system.
+
+Then run the client on linux like this:
+
+`sudo ./DiagnosticLink`
+
+Or on windows just double-click the exe to run the client.
+
+You can then use the GUI to create a connection to a remote linux host with a
+DiagnosticLink server.
+
+## Changelog
+
+- 2024.11.26.dev1: Initial release, support for CZ120, CZ122
+
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