amzn/amzn-drivers
Apr 2025 – Apr 2025
1 Month active
Languages Used
CMarkdownShell
Technical Skills
BPFC ProgrammingDebuggingDevice Driver DevelopmentDevice DriversDriver Development
Ofir Tabachnik
PROFILE
Ofir Tabachnik
Ofir T. enhanced the amzn/amzn-drivers repository by developing and refining ENA network driver features focused on XDP performance, stability, and maintainability. Using C and shell scripting, Ofir implemented XDP multibuffer support across RX and TX paths, introduced ECC-based capability checks, and improved buffer management to address resource leaks and stability issues. The work included kernel compatibility guards, code refactoring for better separation of concerns, and removal of obsolete configurations. By addressing both feature development and bug fixes, Ofir delivered a more reliable and performant driver, raising its suitability for high-throughput Linux kernel networking workloads in production environments.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
28Total
Bugs
4
Commits
28
Features
8
Lines of code
1,425
Activity Months1
Your Network
1390 people
Work History
April 2025
28 Commits • 8 Features
Apr 1, 2025April 2025 — amzn/amzn-drivers: ENA driver enhancements focused on XDP performance, stability, and maintainability. Delivered XDP multibuffer support across RX/TX with ECC-based capability checks, frag handling, rx_copybreak for XDP_PASS, and cleanup of related constants/defines. Added minimum kernel version guard for ENA_XSK_BUFF_DMA_SYNC_SINGLE_ARG. Addressed critical stability issues (RX ID recycling, buffer releases from XDP, and print mismatches). Implemented code quality and maintenance improvements (separating ena_com_write_sq_doorbell to RX/TX; XDP metadata; memory barriers; NAPI/config backports; removal of unused CPU sets). Driver version bumped to 2.14.0, delivering higher XDP throughput, lower latency, and improved reliability for production workloads.
28 Commits • 8 Features
Apr 1, 2025April 2025 — amzn/amzn-drivers: ENA driver enhancements focused on XDP performance, stability, and maintainability. Delivered XDP multibuffer support across RX/TX with ECC-based capability checks, frag handling, rx_copybreak for XDP_PASS, and cleanup of related constants/defines. Added minimum kernel version guard for ENA_XSK_BUFF_DMA_SYNC_SINGLE_ARG. Addressed critical stability issues (RX ID recycling, buffer releases from XDP, and print mismatches). Implemented code quality and maintenance improvements (separating ena_com_write_sq_doorbell to RX/TX; XDP metadata; memory barriers; NAPI/config backports; removal of unused CPU sets). Driver version bumped to 2.14.0, delivering higher XDP throughput, lower latency, and improved reliability for production workloads.
April 2025
Activity
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Quality Metrics
Correctness93.6%
Maintainability90.8%
Architecture91.8%
Performance89.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CMarkdownShell
Technical Skills
BPFC ProgrammingDebuggingDevice Driver DevelopmentDevice DriversDriver DevelopmentKernel DevelopmentLinux KernelLinux Kernel DevelopmentNetwork DriversNetworkingPerformance OptimizationRPM PackagingShell ScriptingTesting
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