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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-04-06 15:10:34 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-04-09 08:49:30 +0200 |
| commit | b0f7425f922d371737804a5a9a213232c6fe0265 (patch) | |
| tree | 5ada7bae61900e0b95895438f169942a5485ce18 /Documentation | |
| parent | bd9ad3a602295fb9aa8882fbf27c54288b150d5f (diff) | |
| download | barebox-b0f7425f922d371737804a5a9a213232c6fe0265.tar.gz barebox-b0f7425f922d371737804a5a9a213232c6fe0265.tar.xz | |
net: on ifup -a only detect devices when necessary
For network boot we once used to hardcode eth0, but in latest changes
this was changed to work with different network devices and the 'ifup
eth0' was replaced with 'ifup -a' which lead to the result that we now
detect all devices in order to eventually also bring up USB network
adapters. In most of the cases this is not desired. When a board has
internal network support this is likely to be used. With this patch
we only detect all devices when we do not have a network device already.
For the unusual case in which a USB network adapter shall be used
even when an internal network interface is present we introduce the
global variable "global.net.ifup_force_detect" which can be used to
force detection of devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/user/networking.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/user/networking.rst b/Documentation/user/networking.rst index 5822165281..6bb99b0da2 100644 --- a/Documentation/user/networking.rst +++ b/Documentation/user/networking.rst @@ -51,6 +51,10 @@ device: | global.net.nameserver | ipv4 address | The DNS server used for resolving host names. | | | | May be set by DHCP | +------------------------------+--------------+------------------------------------------------+ +| global.net.ifup_force_detect | boolean | Set to true if your network device is not | +| | | detected automatically during start (i.e. for | +| | | USB network adapters) | ++------------------------------+--------------+------------------------------------------------+ The first step for networking is configuring the network device. The network device is usually ``eth0``. The current configuration can be viewed with the |