PCI/PCIe Bus Theory & Linux Driver Development

Linux Kernel & Device Drivers · 30 illustrated lessons (text/HTML)

Outcomes

• Read configuration space, BARs and capabilities by hand
• Write a PCI driver with interrupts, DMA and power management
• Understand PCIe topology, TLPs and link training

Where we teach this

• DRV-220 · PCIe Drivers & DMA Engines live cohort

The lessons

Every lesson in this curriculum, in the order we teach it.

• 1Computer bus overview
• 2PCI bus basics
• 3PCI configuration space explained
• 4PCI/PCIe address spaces explained
• 5PCI bus enumeration and resource allocation
• 6PCI bus arbitration and data transfer
• 7PCIe bus evolution and advantages
• 8PCIe topology and layered structure
• 9PCIe packets and transaction types
• 10PCIe configuration space and extended capabilities
• 11PCIe link training and power management
• 12Overview of the Linux device driver model
• 13The Linux PCI subsystem architecture explained
• 14PCI device probing and initialisation
• 15Accessing PCI configuration space: the pci_read_config_* and pci_write_config_* functions
• 16Mapping PCI device address spaces
• 17Handling PCI device interrupts: requesting IRQs, writing handlers and sharing interrupts
• 18Core principles of PCI DMA operations
• 19Advanced PCIe feature driver development
• 20PCIe hot-plug and kernel event handling
• 21Debugging PCI/PCIe devices: tools and reading the output
• 22Writing a simple PCI character-device driver: framework and file-operation interface
• 23PCIe network driver framework: net_device and packet transmit/receive
• 24Writing a PCI block device driver framework: gendisk, request_queue and block operations
• 25Implementing PCI device power management
• 26PCIe SR-IOV virtualisation driver development
• 27User-space PCI device access
• 28PCI drivers and the device tree
• 29PCI driver debugging and performance tuning
• 30Course summary and capstone: PCIe device driver development