SR-IOV Virtual Function Lifetimes / Linux Plumbers Conference: Developing the Kernel, Libraries and Utilities

SR-IOV Virtual Function Lifetimes

This proposal has been accepted as a session.

Accepted Session

One Line Summary

Discussion of issues around enabling, disabling, and removing Virtual Functions

Abstract

Virtual Functions (VFs) currently must be removed by virtfn_remove() under the control of the Physical Function (PF) driver, not by the standard pci_stop_and_remove_bus_device(). This leads to special cases, e.g., omitting the sysfs “remove” file for VFs. Creation of VFs is under the control of the PF driver and may always be special, but can we make the VFs less special afterwards? What should we do with the VFs when the driver releases the PF?

Presentation Materials

slides

Back to list of sessions

Speakers

Bjorn Helgaas
Google
Biography

Linux PCI subsystem maintainer.

Sessions
- * PCI Device Reference Counting
  - Title: PCI Device Reference Counting
  - Microconference: ACPI/PM, PCI subsystems I
  - Time: 9:25am
  - One Line Summary:
    Discussion of synchronization issues with device addition and removal
  - slides
  - Speakers: Myron Stowe, Bjorn Helgaas
- * SR-IOV Virtual Function Lifetimes
  - Title: SR-IOV Virtual Function Lifetimes
  - Microconference: ACPI/PM, PCI subsystems I
  - Time: 9:00am
  - One Line Summary:
    Discussion of issues around enabling, disabling, and removing Virtual Functions
  - slides
  - Speakers: Myron Stowe, Bjorn Helgaas
Myron Stowe
Biography

Myron Stowe has worked with various UNIX based operating systems since 1980. He has always had a strong interest in hardware and system architecture and has focused his career in areas such as: diagnostics, embedded systems, device drivers, and the kernel.

Myron is currently a Linux kernel engineer with Red Hat’s “Platform Enablement” team and is responsible for the kernel’s PCI, of which he is the internal maintainer, ACPI enumeration, and resource management subsystems.

Sessions
- * PCI Device Reference Counting
  - Title: PCI Device Reference Counting
  - Microconference: ACPI/PM, PCI subsystems I
  - Time: 9:25am
  - One Line Summary:
    Discussion of synchronization issues with device addition and removal
  - slides
  - Speakers: Myron Stowe, Bjorn Helgaas
- * SR-IOV Virtual Function Lifetimes
  - Title: SR-IOV Virtual Function Lifetimes
  - Microconference: ACPI/PM, PCI subsystems I
  - Time: 9:00am
  - One Line Summary:
    Discussion of issues around enabling, disabling, and removing Virtual Functions
  - slides
  - Speakers: Myron Stowe, Bjorn Helgaas

Linux Plumbers Conf 2013