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Writing Device Drivers
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Part I Designing Device Drivers for the Solaris Platform

1.  Overview of Solaris Device Drivers

2.  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 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

Introduction to Target Drivers

Sun Common SCSI Architecture Overview

General Flow of Control

SCSA Functions

Hardware Configuration File

Declarations and Data Structures

scsi_device Structure

scsi_pkt Structure (Target Drivers)

Autoconfiguration for SCSI Target Drivers

probe() Entry Point (SCSI Target Drivers)

attach() Entry Point (SCSI Target Drivers)

detach() Entry Point (SCSI Target Drivers)

getinfo() Entry Point (SCSI Target Drivers)

Resource Allocation

scsi_init_pkt() Function

scsi_sync_pkt() Function

scsi_destroy_pkt() Function

scsi_alloc_consistent_buf() Function

scsi_free_consistent_buf() Function

Building and Transporting a Command

Building a Command

Setting Target Capabilities

Transporting a Command

Synchronous scsi_transport() Function

Command Completion

Reuse of Packets

Auto-Request Sense Mode

Dump Handling

SCSI Options

18.  SCSI Host Bus Adapter Drivers

19.  Drivers for Network Devices

20.  USB Drivers

Part III Building a Device Driver

21.  Compiling, Loading, Packaging, and Testing Drivers

22.  Debugging, Testing, and Tuning Device Drivers

23.  Recommended Coding Practices

Part IV Appendixes

A.  Hardware Overview

B.  Summary of Solaris DDI/DKI Services

C.  Making a Device Driver 64-Bit Ready

D.  Console Frame Buffer Drivers


Introduction to Target Drivers

Target drivers can be either character or block device drivers, depending on the device. Drivers for tape drives are usually character device drivers, while disks are handled by block device drivers. This chapter describes how to write a SCSI target driver. The chapter discusses the additional requirements that SCSA places on block and character drivers for SCSI target devices.

The following reference documents provide supplemental information needed by the designers of target drivers and host bus adapter drivers.

Small Computer System Interface 2 (SCSI-2), ANSI/NCITS X3.131-1994, Global Engineering Documents, 1998. ISBN 1199002488.

The Basics of SCSI, Fourth Edition, ANCOT Corporation, 1998. ISBN 0963743988.

Refer also to the SCSI command specification for the target device, provided by the hardware vendor.