net: add linux.bootarg parameter from ifup call ...

This sets a `ip=dhcp` or
`ip=<clientip>:<serverip>:<gatewayip>:<netmaskip>::<iface>:` bootarg for
the network device upon execution of 'ifup'. This is the only point
where we can distinguish between a static ip and a dhcp-based network
setup and thus set a valid bootarg options as it will be required for
nfs boot, for example.

Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

convert users to %pI4 ...

Convert users of ip_to_string() and print_IPaddr() to %pI4 and
remove the now unused functions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: eth: add name to struct eth_device ...

Using dev_name often is not a good idea since it's a statically
allocated string which gets overwritten by later calls to dev_name.
Add a devname string to struct eth_device to have the name available
for later use.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: introduce for_each_netdev iterator ...

for_each_netdev is nicer to read. Also export the list of network
devices since it will be used by code outside of net/eth.c in later
patches.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: resolv: Make argument const ...

resolv() is not allowed to change the hostname argument, make it const.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: eth: Remove ethaddr_param ...

commit d00db554 introduce ethaddr_param. But it is not initialized, so
devinfo fails to show the mac. Remove it and use edev->ethaddr.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net_udp_bind(): use uint16_t type for source port ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: eth: Do not rely on CONFIG_PARAMETER to be enabled ...

register_preset_mac_address only works when CONFIG_PARAMETER
is enabled because otherwise dev_set_param is a no-op. Add a
function to set the MAC address explicitly without the need
of CONFIG_PARAMETER and use it where appropriate.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Make set_ethaddr argument const ...

The set_ethaddr callback should not modify the MAC address passed to it, so
make it const.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net.h: add ETH_ALEN constant; fix whitespaces ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Allow to use multiple network interfaces at once ...

In barebox network packets always go out at the current ethernet
device and are expected to be received from the current interface.
This has some side effects. When for example an NFS is mounted when
one interface is active and the interface is changed afterwards the
NFS packets leave the new interface, but the NFS server won't be
reachable there.

Instead of changing the whole network traffic to the current ethernet
interface we now initialize a network connection with the current
network interface, but then the connection will continue to use that
interface even when the current interface is changed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Pass eth_device to net_receive ...

So that barebox has the information which interface a packet
came from.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Add ifup support ...

The defaultenv-2 has ifup support as a shell script. This patch
replaces it with a command which is more robust, can be called
from C and now can also bring up all configured interfaces.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: constify eth_get_byname argument ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: new function net_read_uint64 ...

This is needed for nfs3 support as some types became bigger compared to
nfs2.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: net_read_uint32: assert that only 32 bit are read ...

On some architectures (e.g. alpha, amd64, arm64, ia64, s390x, mips64)
sizeof(ulong) is 8 which made net_read_uint32 actually read too much and
even returned the wrong value on big endian machines.
(Note the second issue isn't that critical though, because the only
architecture from the list above that uses big endian byte order is s390x
...)

Also change the argument to void * because the pointer is not necessarily
properly aligned.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Set mac-address property ...

Linux normally has no idea how to retrieve MAC Addresses, but instead
expects the MAC address in the devicetree. This patch adds the MAC
address to the devicetree for Linux if we find a valid one in barebox.
This mechanism is limited of course to devices barebox has a driver for
and which are probed themselves from the devicetree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/imx-oftree' ...

Conflicts:
	arch/arm/boards/freescale-mx51-pdk/board.c

treewide include/: Add missing includes ...

This adds several missing includes to files under include/ which
we relied on being included implicitly.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Add of_register_ethaddr ...

We already have a possibility to register a MAC address provider
based on a ethernet device id. This adds a similar functionality
for devices probed from devicetree. Code can register itself to
be a MAC address provider for a certain devicetree node.

This helps on i.MX to let the IIM unit provide a MAC address for
the FEC.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: store ethernet device parameters in device ...

Rather than storing the parameters globally and trying to keep them
in sync with the device parameters, store the parameters in the ethernet
device directly. Also, update to dev_add_param_ip().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: remove unused prototypes for eth_[open|halt] ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: introduce phylib ...

Adapt phylib from linux

switch all the driver to it
reimplement mii bus

This will allow to have
 - phy drivers
 - to only connect the phy at then opening of the device
 - if the phy is not ready or not up fail on open

Same behaviour as in linux and will allow to share code and simplify porting.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

eth: eth MAC addresses are six bytes ...

Reduce confusion by making clear six bytes are passed,
not a string.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

iim: fix compilation when NET is not selected ...

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: remove unused getenv_ip_dns ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: use static string in string_to_ip ...

Simplify usage of ip_to_string by using a static string.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: arp_request: do not retry endlessly ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: env: getenv_ip use resolv ...

Introduce getenv_ip_dns to be able to do not do the resolv when using it in
resolv for the nameserver (Do not loop).

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

net: use container_of instead of dev->type_data ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>