amzn/amzn-drivers
Sep 2025 – Jan 2026
3 Months active
Languages Used
CShell
Technical Skills
Device DriversKernel DevelopmentLow-Level ProgrammingNetworkingDevOpsDriver Development
Tom Sela
PROFILE
Tom Sela
Worked on the amzn/amzn-drivers repository, focusing on kernel driver stability and compatibility for high-performance networking. Addressed kernel-level bugs by aligning EFA kernel verbs’ queue depth initialization with device command values, reducing misconfiguration risks and improving reliability. Delivered a DKMS build configuration cleanup, replacing deprecated directives to streamline module builds and eliminate warnings, leveraging Shell scripting and DevOps practices. Updated the efa_remove_device function to match upstream Linux kernel API changes, ensuring continued compatibility and reliable device removal across kernel versions. Demonstrated expertise in C programming, Linux kernel development, and system administration, contributing to robust, maintainable driver code and smoother production deployments.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
4Total
Bugs
2
Commits
4
Features
1
Lines of code
197,997
Activity Months3
Your Network
1789 peopleWork History
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for amzn/amzn-drivers focused on kernel API compatibility and driver stability. Key feature delivered: aligned efa_remove_device with upstream kernel API changes to restore compatibility across newer kernels by updating the function signature to use enum efa_regs_reason_types instead of bool on_error. This change ensures correct device removal behavior and prevents regressions on updated kernel versions. Major bug fixed: fixed compatibility issues in efa_remove_device that caused broken device removal on newer kernels, leveraging upstream-aligned implementation. Overall impact and accomplishments: reduces kernel-version related breakage, enhances portability of the EFA driver across supported kernel releases, and improves reliability in production deployments. The work lays groundwork for smoother future kernel upgrades and reduces support overhead related to device removal failures. Technologies/skills demonstrated: kernel driver API alignment, C code updates to match upstream kernel changes, patch management and review readiness, and adherence to upstream commit standards (e.g., using enum efa_regs_reason_types, ensuring consistent behavior with upstream implementation).
1 Commits
Jan 1, 2026January 2026 monthly summary for amzn/amzn-drivers focused on kernel API compatibility and driver stability. Key feature delivered: aligned efa_remove_device with upstream kernel API changes to restore compatibility across newer kernels by updating the function signature to use enum efa_regs_reason_types instead of bool on_error. This change ensures correct device removal behavior and prevents regressions on updated kernel versions. Major bug fixed: fixed compatibility issues in efa_remove_device that caused broken device removal on newer kernels, leveraging upstream-aligned implementation. Overall impact and accomplishments: reduces kernel-version related breakage, enhances portability of the EFA driver across supported kernel releases, and improves reliability in production deployments. The work lays groundwork for smoother future kernel upgrades and reduces support overhead related to device removal failures. Technologies/skills demonstrated: kernel driver API alignment, C code updates to match upstream kernel changes, patch management and review readiness, and adherence to upstream commit standards (e.g., using enum efa_regs_reason_types, ensuring consistent behavior with upstream implementation).
January 2026
November 2025
2 Commits • 1 Features
Nov 1, 2025Month 2025-11: Delivered a DKMS Build Configuration Cleanup for amzn/amzn-drivers. Replaced deprecated CLEAN directive with true in the efa DKMS conf and in the efa_nv_peermem DKMS conf to eliminate deprecation warnings and remove the need for explicit clean steps, leveraging DKMS automatic cleanup after builds. This reduces build warnings, streamlines module builds, and improves overall developer productivity. Key commits include linux/efa: Replace deprecated CLEAN in efa DKMS conf (30c074183778b78b803d67c566b7d2d6d0c38429); linux/efa_nv_peermem: Replace deprecated CLEAN DKMS conf (8c5a83ea8963348e8b2de7034bb971c04ade9ce4).
November 2025
2 Commits • 1 Features
Nov 1, 2025Month 2025-11: Delivered a DKMS Build Configuration Cleanup for amzn/amzn-drivers. Replaced deprecated CLEAN directive with true in the efa DKMS conf and in the efa_nv_peermem DKMS conf to eliminate deprecation warnings and remove the need for explicit clean steps, leveraging DKMS automatic cleanup after builds. This reduces build warnings, streamlines module builds, and improves overall developer productivity. Key commits include linux/efa: Replace deprecated CLEAN in efa DKMS conf (30c074183778b78b803d67c566b7d2d6d0c38429); linux/efa_nv_peermem: Replace deprecated CLEAN DKMS conf (8c5a83ea8963348e8b2de7034bb971c04ade9ce4).
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for amzn/amzn-drivers focusing on correctness and stability of EFA kernel verbs. Implemented a critical fix to QP queue depth initialization by aligning device command queue depths with the actual values, replacing raw WR values. The change reduces risk of misconfiguration and improves reliability for high-performance networking.
1 Commits
Sep 1, 2025September 2025 monthly summary for amzn/amzn-drivers focusing on correctness and stability of EFA kernel verbs. Implemented a critical fix to QP queue depth initialization by aligning device command queue depths with the actual values, replacing raw WR values. The change reduces risk of misconfiguration and improves reliability for high-performance networking.
September 2025
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CShell
Technical Skills
C programmingDevOpsDevice DriversDriver DevelopmentKernel DevelopmentLinuxLinux Kernel DevelopmentLow-Level ProgrammingNetworkingShell Scriptingdriver developmentkernel developmentsystem administration
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