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Writing Device Drivers     Oracle Solaris 11 Information Library
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Part I Designing Device Drivers for the Oracle Solaris Platform

1.  Overview of Oracle Solaris Device Drivers

2.  Oracle Solaris Kernel and Device Tree

3.  Multithreading

4.  Properties

5.  Managing Events and Queueing Tasks

6.  Driver Autoconfiguration

7.  Device Access: Programmed I/O

8.  Interrupt Handlers

9.  Direct Memory Access (DMA)

10.  Mapping Device and Kernel Memory

11.  Device Context Management

12.  Power Management

13.  Hardening Oracle Solaris Drivers

14.  Layered Driver Interface (LDI)

Part II Designing Specific Kinds of Device Drivers

15.  Drivers for Character Devices

16.  Drivers for Block Devices

17.  SCSI Target Drivers

18.  SCSI Host Bus Adapter Drivers

19.  Drivers for Network Devices

20.  USB Drivers

21.  SR-IOV Drivers

Introduction to SR-IOV

Benefits of SR-IOV

Supported Platforms


Overview of SR-IOV Device Driver

Physical Function (PF) Driver

Virtual Function (VF) Driver

Device Configuration Parameters

pci.conf File

Setting Device Configuration Parameters

SR-IOV Configuration on Sparc OVM Platform

SR-IOV Configuration on Bare Metal Platforms

Boot Configuration Sequence

SR-IOV Interfaces Summary

Driver Ioctls

Interfaces for SR-IOV Drivers

pci_param_get() Interface

pci_param_get_ioctl() Interface

pci_plist_get() Interface

pci_plist_getvf() Interface

pciv_vf_config() Interface

pci_plist_lookup() Interface

pci_param_free() Interface

pciv_send() Interface

SR-IOV Driver Ioctls

Data Structures

iov_param_ver_info Structure

iov_param_validate Structure

iov_param_desc Structure




Driver Callbacks

Sample Code for Driver Ioctls

Part III Building a Device Driver

22.  Compiling, Loading, Packaging, and Testing Drivers

23.  Debugging, Testing, and Tuning Device Drivers

24.  Recommended Coding Practices

Part IV Appendixes

A.  Hardware Overview

B.  Summary of Oracle Solaris DDI/DKI Services

C.  Making a Device Driver 64-Bit Ready

D.  Console Frame Buffer Drivers

E.  pci.conf File


Boot Configuration Sequence

The SR-IOV capable PF driver performs the following actions during attachment :

  1. Calls the pciv_vf_config() function to obtain the number of VFs.

  2. Obtains the device specific parameters for both the PF and VF and validates them.

  3. Initializes the hardware accordingly

  4. Calls the pciv_vf_config() interface to enable the VF

  5. If the PF driver is a network driver, the driver will register with the GLDv3 framework using the mac_register() interface during attachment. The PF driver also performs class-specific initialization. This results in the following set of actions:

    • The GLDv3 interface becomes aware of the existence of the PF device.

    • A new set of MAC provider interfaces are exported by the PF driver. This process enables the MAC layer to become aware that the driver is a PF driver. The MAC layer also obtains more information about the VF driver.

    See Chapter 19, Drivers for Network Devices and the Oracle Solaris Administration: Network Interfaces and Network Virtualization chapter in for more information about network drivers and interfaces.

The VF instances are now initialized. A VF driver is attached only if the VF is assigned to the root domain.