Intel® Media Switch IXE2426 10/100+Gigabit L2 Device
Summary descriptions and use of APIs supported by the IXE2426 are provided in Table 8.
APIs Supported by the IXE2426
Table 8.
API Module
Description/Use
Handles the interrupt from the IXE2426.
Interrupt Handling
OS Wrapper
Provides services needed from the underlying real time operating system. You can
port these wrappers to your target operating system.
Provides a generic method for distributing information within a system. Allows
different software modules to register for events of interest and makes the
information distribution transparent, modular, and flexible.
Notification Manager
Enables you to program the performance of different functions. Provides functions
for the ASIC, MAC, and Phy initialization, configuration, and management, which
include functions for ASIC initialization and routines for bit level manipulations of
the IXE2426 registers for various configurations.
ASIC, Mac, and PHY
MAC and Phy provide functions to initialize the Ethernet controllers built into the
IXE2426 and theLXT9782 Phy (such as functions to change the speed, functions
to change the duplex mode, etc.).
Address Resolution
DMA Interface
Contains functions used for learning Layer 2 addresses.
Provides functions to send and receive packets between the IXE2426 and the
CPU. The ASIC Driver provides a full set of functions supporting packet send and
packet receive, and a separate set of functions that allow higher level software to
manage the receive and send DMA buffer pools directly.
Provides functions for configuring an ageing interval. The IXE2426 tracks the
address record entries that have been accessed over the ageing interval. Different
aging time intervals can be specified for Layer 2 entries.
Address Aging
Provides functions for address learning in the software. The hardware provides a
CAM interface to facilitate fast learning of addresses.
Address Learning
Supports configuring filters, mirrors, priorities, and quality of service for networks,
nodes and ports. These APIs can be called from higher-layer software modules
(such as SNMP agent) to configure these special rules for addresses.
Filter, Mirror, Priority,
and Quality of Service
Provides APIs (based on ports, 802.1Q tags, and multicast addresses) to make
VLAN configuration and management easier for higher-layer software modules
such as GVRP, GMRP, or SNMP agent (for user-configured VLANs).
VLAN
Provides counters that count different events required for both standard and draft
MIB implementations and functions for gathering MAC, PHY, and ASIC statistics,
including RMON stats. The APIs provided for higher-layer software modules are for
reading these counters.
Statistics Gathering
Support for port aggregation on all ports in groups of up to eight ports for the
10/100 Mbps ports, and in a group of two ports for the Gigabit ports. Supports
Ingress Aggregation Only and Ingress and Egress Aggregation modes of which
Ingress Aggregation Only mode is the default.
Link Aggregation
Configuration and
Management
Provides functions for all other miscellaneous configurations, such as adding static
entries to address tables, creating static routes, creating default routes, broadcast
and multicast storm control, etc. The Miscellaneous API module interfaces to
various modules including ASIC Database Manager, Configuration Management
task, Address Resolution task, etc., to provide these functionalities to higher-layer
protocol stacks.
Miscellaneous
9.2
Protocols
The IXE2426 can perform extensive packet parsing and can obtain packet type (Type II, SNAP,
etc.) and protocol (GARP, GVRP, STP, etc.) information directly from the packet header.
16
Data Sheet
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