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Supporting ethtool with Linux Integration Service

Supporting ethtool with Linux Integration Service. Open Source Technology Center Microsoft. What is ethtool ?. The man page description: ethtool is used to query and control network device driver and hardware settings, particularly for wired Ethernet devices

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Supporting ethtool with Linux Integration Service

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  1. Supporting ethtool with Linux Integration Service Open Source Technology Center Microsoft

  2. What is ethtool? • The man page description: ethtool is used to query and control network device driver and hardware settings, particularly for wired Ethernet devices • “ethtool” is a Linux utility which makes system calls into the kernelto change or display a set of tunable variables that impact the network features and performance • The number of send/receive queues of vRSS • The size of send/receive buffers • Turning on/off Large Send Offloading, etc.

  3. What’s the Linux Integration Service? • The Linux Integration Service (LIS) includes a number of kernel mode drivers in the Linux virtual machines (guests) running on Hyper-V hosts or Azure cloud • Hyper-V is a native (bare metal) hypervisor (like XEN and VMware ESX) for running virtual machines • The LIS drivers enable the Linux guests to run efficiently in the virtualized environment

  4. What’s required to support ethtool? • A set of callback functions needs to be implemented in our driver to support these tuning capabilities. • Implementing these functions requires knowledge of the Linux kernel internals, and a detailed understanding of how our LIS source code works. • As part of the Linux kernel, the developed code will be open-source with plans to be integrated into the kernel source tree. • Mailing list: Linux Driver Project Developer List <driverdev-devel.linuxdriverproject.org>

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