Network Driver

Ethernet and TCP/IP Stack Support

Overview

Network drivers enable AOS to communicate over Ethernet. AOS OS supports RTL8169 and E1000 compatible network cards via lwIP stack.

Supported Hardware

RTL8169 - Gigabit Ethernet controller
E1000 - Intel Gigabit Ethernet (emulated)
Generic Ethernet - ARP, IPv4, DHCP support

Network Stack

lwIP provides TCP/IP stack implementation including:

Ethernet frame handling
ARP address resolution
IPv4 routing
TCP and UDP protocols
DHCP for automatic configuration
DNS resolution

Key Takeaways

✓ Network card enumeration via PCI
✓ DMA-based packet transmission/reception
✓ Interrupt-driven packet handling
✓ lwIP provides TCP/IP stack
✓ Support for DHCP and DNS