Comtrol eCos - Manual (Page 583)

Chapter 40. Freebsd TCP/IP stack port
This document describes how to get started with the Freebsd TCP/IP network stack.
Targets
A number of ethernet devices may be supported. The default configuration supports two instances of the interface
by default, and you will need to write your own driver instantiation code, and supplemental startup and initialization
code, if you should add additional ones.
The target for your board will normally be supplied with an ethernet driver, in which case including the network
stack and generic ethernet driver package to your build will automatically enable usage of the ethernet device
driver. If your target is not supplied with an ethernet driver, you will need to use loopback (see
the Section called
Loopback tests in Chapter 36 ).
Building the Network Stack
Using the Build->Packages dialog, add the packages “Networking”, “Freebsd TCP/IP Stack” and
“Common
Ethernet Support” to your configuration. Their package names are CYGPKG_NET,
CYGPKG_NET_FREEBSD_STACK and CYGPKG_NET_ETH_DRIVERS respectively.
A short-cut way to do this is by using the “net” template if it is available for your platform.
The platform-specific ethernet device driver for your platform will be added as part of the target selection (in the
Build->Templates “Hardware” item), along with the PCI I/O subsystem (if relevent) and the appropriate serial
device driver.
For example, the PowerPC MBX target selection adds the package PKG_NET_QUICC_ETH_DRIVERS, and the
Cirrus Logic EDB7xxx target selection adds the package CYGPKG_NET_EDB7XXX_ETH_DRIVERS. After
this, eCos and its tests can be built exactly as usual.
Note: By default, most of the network tests are not built. This is because some of them require manual in-
tervention, i.e. they are to be run “by hand”, and are not suitable for automated testing. To build the full set
of network tests, set the configuration option CYGPKG_NET_BUILD_TESTS “Build networking tests (demo
programs)” within “Networking support build options”.
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