chee-zhang

This commit **updates the platform manager configuration** for the **Ladakh800bcls** platform to **prevent I2C timing issues**. It achieves this by adding the `fboss_iob_i2c` kernel module to the `requiredKmodsToLoad` list within `fboss/platform/configs/ladakh800bcls/platform_manager.json`. This **configuration change** ensures the I2C kernel module is preloaded, thereby avoiding conflicts during I2C bus creation and improving the overall stability and reliability of I2C operations on the platform.

This commit performs a **configuration update** for the **Ladakh800bcls platform**, primarily to align with a new BSP release. It **updates the BSP kernel modules RPM version** from 4.0.0 to **4.1.0** and **corrects the kernel device name** for the **SMB CPLD** within the `platform_manager.json` configuration. Specifically, the `kernelDeviceName` for the SMB CPLD is changed from `anacapa_smbcpld` to `th6_smbcpld`, ensuring proper identification and interaction with the hardware components under the updated BSP. This **maintenance** work ensures continued compatibility and correct device recognition for the platform.

This commit provides a **maintenance update** to the **Ladakh800bcls platform configuration**, primarily focusing on **sensor monitoring parameters**. It **updates various sensor thresholds** in `fboss/platform/configs/ladakh800bcls/sensor_service.json` according to the latest specifications, including adjusting the TMP432 critical value on SMB from 100 to 95. Additionally, it **corrects several sensor names** across both `platform_manager.json` and `sensor_service.json` (e.g., `TSHENSOR` to `TSENSOR`), ensuring accurate identification and reporting for the platform's inlet temperature sensors and other components. This ensures the platform's **sensor monitoring system operates with correct and up-to-date parameters**.

This commit performs a **configuration update** for the **Ladakh800bcls platform's thermal management**, specifically targeting the **SMB (System Management Bus)**. It **modifies the high limit thresholds** for the **tmp432 temperature sensors** from 100°C to 95°C within the `platform_manager.json` configuration. This **maintenance** adjustment is based on the latest thermal team test results, ensuring more accurate and responsive temperature monitoring for the system. The change directly impacts the thermal stability and alert mechanisms by lowering the threshold at which high-temperature conditions are flagged.

This commit provides **hardware support** for the **`ladakh800bcls` platform** to accommodate the **EVT1B hardware revision**. It updates the **sensor configurations** within `fboss/platform/configs/ladakh800bcls/sensor_service.json` by adding new `versionedSensors` for `SMB_L` and `SMB_R`. This **maintenance** work also modifies existing sensor thresholds and removes unused sensor entries to align with the latest hardware specifications. The changes ensure the platform can accurately monitor and manage sensors on the new EVT1B hardware, maintaining system stability and data integrity.

This commit **introduces new BSP tests** for the **Ladakh800bcls platform**, significantly enhancing hardware validation capabilities. It adds configurations to `fboss/platform/configs/ladakh800bcls/bsp_tests.json` to cover critical components. This **new capability** includes tests for `MCB_CPLD` I2C functionality, `MCB_FAN_CPLD` fan operations, and `48V_HSC_MONITOR` sensor readings. This work improves the overall **test coverage and reliability** of the **Ladakh800bcls** hardware, ensuring proper functioning of these essential subsystems.

This commit introduces **new capability** by adding **support for the second resource of NETLAKE**, specifically for product sub-versions **4.2.1 and 4.2.2**. It updates the **platform_manager** service by adding `versionedPmUnitConfigs` with new I2C device configurations in `platform_manager.json`. Concurrently, the **sensor** service is enhanced with `versionedSensors` through updated sensor definitions in `sensor_service.json`. This enables comprehensive management and monitoring of the expanded hardware configurations on the specified NETLAKE platforms.

This commit **fixes the failure to create MDIO buses** on the **Ladakh800bcls platform** by resolving two critical issues within the **Platform Manager**. It introduces an `iobufOffsetCalc` field and corresponding logic to correctly determine the `iobufOffset` for MDIO bus configurations, addressing an incorrect `0` value that previously caused initialization failures. Additionally, the `PlatformExplorer`'s `instanceId` allocation logic is improved to ensure unique IDs are assigned for MDIO auxiliary devices, even after previous creation attempts failed. This **bug fix** ensures the proper initialization and functionality of **MDIO bus devices**, preventing device creation errors and enhancing the overall stability of the platform.

This commit introduces significant **platform improvements** for the **Ladakh800bcls** platform, primarily enhancing **MDIO configuration and control** within the `platform_manager`. It adds support for new MDIO bus control functions, including reset capabilities, by integrating with BSP 4.0.0's sysfs nodes and updating `PciExplorer` and `PlatformExplorer` to manage these new character device and sysfs paths. Concurrently, it **refactors** the MDIO configuration process by introducing `mdioBusBlockConfigs` and a new `createMdioBusConfigs` utility, allowing for automatic generation of MDIO bus configurations from block definitions, thereby reducing manual configuration overhead. These changes streamline MDIO bus management and enable advanced hardware control for the Ladakh800bcls platform.

This commit delivers a **bug fix** for the **QSFP MDIO interface** by correcting the "magic words" used for read and write operations. Specifically, the `MDIO_ACCESS_REGRD` and `MDIO_ACCESS_REGWR` macros in `fboss/mdio/BspDeviceMdio.cpp` were reversed, leading to incorrect MDIO register read values. This change ensures **accurate communication with PHY retimers**, resolving issues where register reads would consistently return zero and enabling proper hardware configuration and status monitoring for QSFP modules.

This commit delivers a **bug fix** for the **MDIO interface** within the **QSFP module**, resolving critical failures during read/write operations on retimers. It **corrects the magic numbers** used in the `MDIO_ACCESS_REGRD` and `MDIO_ACCESS_REGWR` macros within `fboss/mdio/BspDeviceMdio.cpp`. This essential **maintenance** update aligns the MDIO interface with the correct protocol, preventing thread coredumps and timeouts that previously occurred due to incorrect register access, thereby ensuring stable communication with retimer devices.

This commit introduces **new MDIO bus configurations** for the **Ladakh800bcls platform**, specifically targeting the **RTM_L** and **RTM_R** units. It's a **feature addition** that defines 16 MDIO buses for each RTM, mapping them to their respective CSR offsets as dictated by the hardware FPGA specification. By updating the `platform_manager.json` file, this change enables the platform to properly discover and interact with MDIO-controlled devices on these RTMs. This is crucial for enabling comprehensive hardware management and monitoring capabilities for the **Ladakh800bcls** system.

This commit introduces **new capabilities** to the **Ladakh800bcls platform's sensor service** by expanding its hardware monitoring configurations. It adds detailed **temperature configurations** to track ASIC temperatures using specific `tmp432` sensor readings, and integrates **power configurations** for 48V HOTSWAP components (LTC4287, TPS16851) and six fans. This **feature addition** to `sensor_service.json` significantly enhances the platform's ability to monitor critical hardware health, providing more comprehensive data for system management and diagnostics.

This commit introduces **PHY mapping** for the **`ladakh800bcls` platform**, a **new capability** essential for the **QSFP service** to correctly initialize physical layer transceivers. It adds a new CSV file, `Ladakh800bcls_PhyBspMapping.csv`, containing specific `PHY ID` and `CHIP ID` configurations, and updates `Ladakh800bclsBspPlatformMapping.cpp` to populate the `phyMapping` and `phyIOControllers` sections. This ensures the `ladakh800bcls` platform can properly configure its transceivers, using `Agera3: 83361` as the `CHIP ID` and setting `PhyCoreId` to 0. The change enables accurate hardware interaction and management for this specific board's physical layer.

This commit introduces a **new capability** to configure and manage MDIO (Management Data Input/Output) buses within the **fboss platform manager**, specifically tailored for the **Ladakh800bcls hardware platform**. It adds `mdioBusConfigs` to `PciDeviceConfig` in `platform_manager_config.thrift`, allowing the definition of MDIO controllers and their CSR offsets. The `PciExplorer` and `PlatformExplorer` modules are updated to **create and register these MDIO bus devices** and their corresponding symlinks, while `ConfigValidator` ensures proper configuration. This **feature addition** is essential for enabling communication with PHYs and other MDIO-controlled devices on the new Ladakh800bcls EVT1 hardware.

This commit **updates the platform manager configuration** for the **Ladakh800bcls platform**, specifically addressing **CPLD driver kernel device names**. It **renames** multiple `kernelDeviceName` values in `fboss/platform/configs/ladakh800bcls/platform_manager.json`, changing their prefixes from `ladakh800bcls_` to `anacapa_`. This **maintenance** change is crucial to **adapt the CPLD device naming to align with the current Board Support Package (BSP)**. The update ensures the platform manager can correctly identify and interact with CPLD devices, preventing potential mismatches due to naming discrepancies.

This commit performs a **platform maintenance update** for the `ladakh800bcls` platform, primarily by **upgrading the BSP version** from 3.3.0 to 3.4.0 in `platform_manager.json`. Concurrently, it **fixes the sensor service configuration** in `sensor_service.json` by updating the `sysfsPath` for the `MCB_UP15_XP12R0V_COME_VOUT` sensor to `in3_input`. This adjustment is crucial to ensure **accurate sensor readings** and proper functionality following a recent driver update, maintaining compatibility and correct system monitoring.

This commit performs a **configuration update** for the **Ladakh800bcls platform**, specifically adjusting temperature monitoring thresholds. It **updates the local and remote high temperature limits** for the `tmp432` sensors to 100 degrees Celsius within the `platform_manager.json` configuration. This **maintenance fix** is designed to prevent the **TH6 board** from prematurely powering down due to temperature triggers that were previously set at 80/85 ℃. By raising these thresholds, the system gains improved stability and operational resilience under higher, yet safe, temperature conditions.

This commit provides the **initial platform configurations** for the **Ladakh800bcls hardware platform**, marking a significant step in its **EVT1 phase bring-up**. It introduces essential configurations for **`fan_service`**, **`fw_util`**, **`led_manager`**, and **`sensor_service`**, defining parameters for fan control, firmware upgrade paths, LED indicators (including tri-color and bi-color LEDs), and various thermal, voltage, and current sensors. This **new capability** establishes the foundational operational parameters for the platform's core services, enabling basic hardware monitoring and control. The changes also include initial `bsp_tests.json` and `showtech.json` configurations, crucial for validating and debugging the new hardware.

This commit introduces the **initial platform configuration** for the new **Ladakh800bcls** hardware platform, enabling FBOSS support for its EVT1 phase. It primarily involves adding detailed configurations for the Switch Main Board (SMB), Retimer Board (RTM), and Main Carrier Board (MCB) within the **platform_manager** subsystem, as defined in `fboss/platform/configs/ladakh800bcls/platform_manager.json`. This work also incorporates several **bug fixes** identified during the platform's bring-up, addressing critical issues such as I2C bus configurations, sensor addresses (PMBUS, FAN, HSCB, xcvr), and RTM kernel device settings. The changes ensure correct hardware interaction and enable comprehensive management of the **Ladakh800bcls** platform by updating `platform_manager_validators.thrift` with new unit names.