facebook/fboss
Jun 2025 – Jun 2026
12 Months active
Languages Used
C++ThriftJSONPython
Technical Skills
C++ developmentcommand line utilitiessystem programmingC++Thriftbackend development
Togis Thomas
PROFILE
Togis Thomas
Over the past year, contributed to the facebook/fboss repository by developing and refining features for optical networking, embedded systems, and firmware management. Delivered tunable optics support, enhanced diagnostics, and robust configuration utilities, focusing on reliability and operational visibility. Applied C++ and Thrift to implement dynamic frequency programming, firmware upgrade workflows, and platform mapping optimizations. Improved test automation and system stability through state machine design, readiness polling, and targeted bug fixes. Strengthened hardware-software integration by exposing diagnostics in CLI tools and ensuring safe, traceable upgrades. The work emphasized maintainability, runtime safety, and efficient deployment across evolving hardware and networking environments.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
76Total
Bugs
6
Commits
76
Features
18
Lines of code
581,106
Activity Months12
Your Network
3299 peopleSame Organization
@meta.com3012
Peter RongMember
Zain RizviMember
Aaditya NairMember
Aahan AggarwalMember
Aliaksei AndreyeuMember
Arjun ChaturvediMember
Aaron FarberMember
Aaron PollackMember
Aaryaman SagarMember
Shared Repositories
287
Salman Muin Kayser ChishtiMember
Arjun ChaturvediMember
Adam CalabrigoMember
Alex EckertMember
Alan FrindellMember
Ashutosh GrewalMember
Anurag GumidelliMember
Alex HornbyMember
aalamsi22Member
Work History
June 2026
3 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for facebook/fboss focusing on runtime reliability and diagnostics enhancements: Key features delivered: - Firmware upgrade reliability enhancements: Implemented readiness polling to replace fixed sleeps, ensuring upgrades proceed only when the module is truly ready. Added robust handling for transient CDB status during upgrades (0x00) to avoid premature completion; introduced a 60-second module-ready polling window with 0.5-second intervals and added logging for transition timing. Post-upgrade polling ensures graceful handling of I2C reset states. Commits: ba327be029c897701729f4e5728496695a5ac9b9; 75612513e6d7c548ecd0424383da6a184472cbe1. - AppSel per-lane visibility improvement: Exposed per-lane CMIS Application Select (AppSel) codes in wedge_qsfp_util for both service path and direct-i2c path, improving diagnostics and operational visibility. Commit: d9e1d17b7bfd5ce8e1cffd9a140b8c1399c18326. Major bugs fixed: - Firmware upgrade polling reliability: Correct handling of CDB read failure/unknown state (0x00) during upgrade to prevent premature success, aligning behavior with the intended busy/transient status set and reducing upgrade-induced failures. This is addressed in ba327be029c897701729f4e5728496695a5ac9b9. Overall impact and accomplishments: - Significantly improved upgrade reliability and uptime for firmware updates, lowering downtime and operational risk during maintenance cycles. - Enhanced observability into runtime behavior via per-lane AppSel visibility, accelerating diagnostics and issue resolution in service and direct-i2c workflows. - Strengthened code quality and resilience through robust polling, explicit readiness checks, and resilient I2C handling during reset windows. Technologies/skills demonstrated: - Embedded firmware upgrade workflows, I2C integration, and CMIS AppSel concepts. - Polling loops, timeout management, and transient-state handling to improve reliability. - Cross-path observability improvements (service path and direct-i2c path) with no thrift/Cmis module changes required. - Code review and collaboration across teams (e.g., reviews by harshitgulati18 and birdsoup). Commit-level traceability: - ba327be029c897701729f4e5728496695a5ac9b9: Handle CDB read failure status (0x00) during firmware upgrade; transient state handling in busy loop. - 75612513e6d7c548ecd0424383da6a184472cbe1: Poll for module ready state after firmware run command; readiness polling with 60s timeout. - d9e1d17b7bfd5ce8e1cffd9a140b8c1399c18326: Display current AppSel code in wedge_qsfp_util for service and direct-i2c paths.
3 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for facebook/fboss focusing on runtime reliability and diagnostics enhancements: Key features delivered: - Firmware upgrade reliability enhancements: Implemented readiness polling to replace fixed sleeps, ensuring upgrades proceed only when the module is truly ready. Added robust handling for transient CDB status during upgrades (0x00) to avoid premature completion; introduced a 60-second module-ready polling window with 0.5-second intervals and added logging for transition timing. Post-upgrade polling ensures graceful handling of I2C reset states. Commits: ba327be029c897701729f4e5728496695a5ac9b9; 75612513e6d7c548ecd0424383da6a184472cbe1. - AppSel per-lane visibility improvement: Exposed per-lane CMIS Application Select (AppSel) codes in wedge_qsfp_util for both service path and direct-i2c path, improving diagnostics and operational visibility. Commit: d9e1d17b7bfd5ce8e1cffd9a140b8c1399c18326. Major bugs fixed: - Firmware upgrade polling reliability: Correct handling of CDB read failure/unknown state (0x00) during upgrade to prevent premature success, aligning behavior with the intended busy/transient status set and reducing upgrade-induced failures. This is addressed in ba327be029c897701729f4e5728496695a5ac9b9. Overall impact and accomplishments: - Significantly improved upgrade reliability and uptime for firmware updates, lowering downtime and operational risk during maintenance cycles. - Enhanced observability into runtime behavior via per-lane AppSel visibility, accelerating diagnostics and issue resolution in service and direct-i2c workflows. - Strengthened code quality and resilience through robust polling, explicit readiness checks, and resilient I2C handling during reset windows. Technologies/skills demonstrated: - Embedded firmware upgrade workflows, I2C integration, and CMIS AppSel concepts. - Polling loops, timeout management, and transient-state handling to improve reliability. - Cross-path observability improvements (service path and direct-i2c path) with no thrift/Cmis module changes required. - Code review and collaboration across teams (e.g., reviews by harshitgulati18 and birdsoup). Commit-level traceability: - ba327be029c897701729f4e5728496695a5ac9b9: Handle CDB read failure status (0x00) during firmware upgrade; transient state handling in busy loop. - 75612513e6d7c548ecd0424383da6a184472cbe1: Poll for module ready state after firmware run command; readiness polling with 60s timeout. - d9e1d17b7bfd5ce8e1cffd9a140b8c1399c18326: Display current AppSel code in wedge_qsfp_util for service and direct-i2c paths.
June 2026
May 2026
15 Commits • 4 Features
May 1, 2026May 2026 monthly summary focused on reliability, stability, and observability improvements across fboss platform mappings, CMIS handling, and firmware processes. Key outcomes include platform hardening for Tahansb800bc, enhanced CMIS-based hold-off timer support for ZR optics, and improved upgrade traceability and warm-boot resilience. These efforts reduce misconfigurations, improve fault handling, and enable faster, safer deployments.
May 2026
15 Commits • 4 Features
May 1, 2026May 2026 monthly summary focused on reliability, stability, and observability improvements across fboss platform mappings, CMIS handling, and firmware processes. Key outcomes include platform hardening for Tahansb800bc, enhanced CMIS-based hold-off timer support for ZR optics, and improved upgrade traceability and warm-boot resilience. These efforts reduce misconfigurations, improve fault handling, and enable faster, safer deployments.
April 2026
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for facebook/fboss focused on delivering flexible platform mappings via runtime flags, introducing a link_training variant, and strengthening deployment/configuration capabilities. Business value: safer rollouts, faster validation, and customizable performance tuning across Tahansb800bc variants. Technical achievements include header generation, mapping JSONs, and build/tooling integration that enable flag-driven deployment and easier regression testing.
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for facebook/fboss focused on delivering flexible platform mappings via runtime flags, introducing a link_training variant, and strengthening deployment/configuration capabilities. Business value: safer rollouts, faster validation, and customizable performance tuning across Tahansb800bc variants. Technical achievements include header generation, mapping JSONs, and build/tooling integration that enable flag-driven deployment and easier regression testing.
April 2026
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 was focused on correctness and reliability in optical channel handling and platform-specific serdes testing for the facebook/fboss workstream. Key changes improved channel mapping accuracy and reduced test flakiness by enforcing appropriate usage patterns and accommodating platform limitations.
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 was focused on correctness and reliability in optical channel handling and platform-specific serdes testing for the facebook/fboss workstream. Key changes improved channel mapping accuracy and reduced test flakiness by enforcing appropriate usage patterns and accommodating platform limitations.
February 2026
4 Commits • 2 Features
Feb 1, 2026February 2026 — Delivered core CMIS firmware visibility and enhanced firmware upgrade logging for the facebook/fboss project. Implemented firmware build number retrieval via CDB with exposure in system firmware reporting and CLI; extended CLI visibility to wedge_qsfp_util. Augmented I2C upgrade logging by adding a page parameter to CDB transactions and propagating the page context through readTransceiver/writeTransceiver paths, enabling accurate per-page logging. These changes improved hardware inventory accuracy, troubleshooting efficiency, and overall maintainability. Key work spans CDB command integration, thrift/CLI exposure, and logging instrumentation, demonstrated across firmware and transport layers.
4 Commits • 2 Features
Feb 1, 2026February 2026 — Delivered core CMIS firmware visibility and enhanced firmware upgrade logging for the facebook/fboss project. Implemented firmware build number retrieval via CDB with exposure in system firmware reporting and CLI; extended CLI visibility to wedge_qsfp_util. Augmented I2C upgrade logging by adding a page parameter to CDB transactions and propagating the page context through readTransceiver/writeTransceiver paths, enabling accurate per-page logging. These changes improved hardware inventory accuracy, troubleshooting efficiency, and overall maintainability. Key work spans CDB command integration, thrift/CLI exposure, and logging instrumentation, demonstrated across firmware and transport layers.
February 2026
January 2026
9 Commits • 2 Features
Jan 1, 2026Month: 2026-01 – Focused on strengthening test infrastructure and datapath safety while stabilizing CI reliability. Key work delivered includes a major overhaul of the PRBS test infrastructure and a series of datapath reliability/safety enhancements for tunable optics (ZR), with targeted CI stability improvements.
January 2026
9 Commits • 2 Features
Jan 1, 2026Month: 2026-01 – Focused on strengthening test infrastructure and datapath safety while stabilizing CI reliability. Key work delivered includes a major overhaul of the PRBS test infrastructure and a series of datapath reliability/safety enhancements for tunable optics (ZR), with targeted CI stability improvements.
December 2025
14 Commits • 2 Features
Dec 1, 2025December 2025 highlights for facebook/fboss: Strengthened reliability and automation across AppSel programming and CMIS datapath control, and delivered a targeted bug fix for Intel FR4 200G Rx-LOS SNR handling. These changes reduce false alarms, improve measurement reliability, and accelerate safe configuration deployment across Finisar/FBOSS modules. Key outcomes include a robust AppSel code path with direct ZR support and helper functions, a validated CMIS datapath init/deinit workflow with state-machine polling and testing simulations, and added TX power programming capability. The work improves fleet stability, reduces operational risk during module provisioning, and expands transceiver management capabilities.
14 Commits • 2 Features
Dec 1, 2025December 2025 highlights for facebook/fboss: Strengthened reliability and automation across AppSel programming and CMIS datapath control, and delivered a targeted bug fix for Intel FR4 200G Rx-LOS SNR handling. These changes reduce false alarms, improve measurement reliability, and accelerate safe configuration deployment across Finisar/FBOSS modules. Key outcomes include a robust AppSel code path with direct ZR support and helper functions, a validated CMIS datapath init/deinit workflow with state-machine polling and testing simulations, and added TX power programming capability. The work improves fleet stability, reduces operational risk during module provisioning, and expands transceiver management capabilities.
December 2025
November 2025
6 Commits • 1 Features
Nov 1, 2025November 2025: Delivered critical 800G media interface support across FBOSS QSFP service, thrift interfaces, and hardware test rigs. Implemented new media interface codes (ZR_OROADM_FLEXO_8E_DPO_800G, ZR_OIF_ZRA_800G, 0XF7, ZR_ACACIA_CUSTOM) and updated the CmisHelper mappings and test coverage to enable compatibility with newer transceivers. Fixed Finisar 200G_FR4 optics power state handling and readiness verification, keeping modules in low power during AppSel, introducing utility helpers, and adding readiness polling. These changes expand hardware support, improve reliability of deployments, and accelerate adoption of next-gen interfaces, demonstrating strong software-hardware integration and test automation.
November 2025
6 Commits • 1 Features
Nov 1, 2025November 2025: Delivered critical 800G media interface support across FBOSS QSFP service, thrift interfaces, and hardware test rigs. Implemented new media interface codes (ZR_OROADM_FLEXO_8E_DPO_800G, ZR_OIF_ZRA_800G, 0XF7, ZR_ACACIA_CUSTOM) and updated the CmisHelper mappings and test coverage to enable compatibility with newer transceivers. Fixed Finisar 200G_FR4 optics power state handling and readiness verification, keeping modules in low power during AppSel, introducing utility helpers, and adding readiness polling. These changes expand hardware support, improve reliability of deployments, and accelerate adoption of next-gen interfaces, demonstrating strong software-hardware integration and test automation.
October 2025
13 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for facebook/fboss: Delivered end-to-end tunable optics configuration and monitoring for ZR modules, expanded CMIS utilities, enhanced data model and CLI for laser status, and fixed critical datapath timing. The work strengthens automated laser tuning workflows, improves hardware reliability, and demonstrates cross-team collaboration and code quality.
13 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for facebook/fboss: Delivered end-to-end tunable optics configuration and monitoring for ZR modules, expanded CMIS utilities, enhanced data model and CLI for laser status, and fixed critical datapath timing. The work strengthens automated laser tuning workflows, improves hardware reliability, and demonstrates cross-team collaboration and code quality.
October 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for facebook/fboss: Focused delivery of tunable optics support for ZR modules, integrated CMIS updates, and a verification utility to enable robust configuration and validation. The work enhances optical performance management, operator workflows, and system reliability in FBOSS deployments.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for facebook/fboss: Focused delivery of tunable optics support for ZR modules, integrated CMIS updates, and a verification utility to enable robust configuration and validation. The work enhances optical performance management, operator workflows, and system reliability in FBOSS deployments.
July 2025
2 Commits • 1 Features
Jul 1, 2025In 2025-07, fboss delivered ZR 800G CMIS transceiver support and diagnostics enhancements, expanding 800G deployment readiness. Key changes included updates to Thrift definitions for CMIS 800G and revised verification logic, plus new tests for CMIS 800G ZR EEPROM validation and diagnostics. This work is backed by commits: 79cd1db311e6983fb929380d232edae9c8455609 (Thrift file changes) and 61203dd597782f2ffb90973f6c5cc7700c3bb700 (CMIS test code).
2 Commits • 1 Features
Jul 1, 2025In 2025-07, fboss delivered ZR 800G CMIS transceiver support and diagnostics enhancements, expanding 800G deployment readiness. Key changes included updates to Thrift definitions for CMIS 800G and revised verification logic, plus new tests for CMIS 800G ZR EEPROM validation and diagnostics. This work is backed by commits: 79cd1db311e6983fb929380d232edae9c8455609 (Thrift file changes) and 61203dd597782f2ffb90973f6c5cc7700c3bb700 (CMIS test code).
July 2025
June 2025
1 Commits
Jun 1, 2025June 2025 progress focused on stability and readability improvements in the facebook/fboss repository. Delivered a targeted bug fix to the Rx SNR display formatting in wedge_qsfp_util, enhancing readability and reducing ambiguity in signal quality reporting for operators and monitoring dashboards.
June 2025
1 Commits
Jun 1, 2025June 2025 progress focused on stability and readability improvements in the facebook/fboss repository. Delivered a targeted bug fix to the Rx SNR display formatting in wedge_qsfp_util, enhancing readability and reducing ambiguity in signal quality reporting for operators and monitoring dashboards.
Activity
Loading activity data...
Quality Metrics
Correctness93.2%
Maintainability84.8%
Architecture86.8%
Performance85.0%
AI Usage30.4%
Skills & Technologies
Programming Languages
C++JSONPythonThrift
Technical Skills
API designC++C++ developmentC++ programmingCLI DevelopmentCLI developmentEmbedded SystemsFirmware DevelopmentHardware InteractionHardware ProgrammingI2C communicationJSON handlingNetwork ProgrammingOptical NetworkingPython
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline