Commit graph

205 commits

Author SHA1 Message Date
Bin Meng
ac1d313806 net: eth: Check return value in various places
eth_get_dev() can return NULL which means device_probe() fails for
that ethernet device. Add return value check in various places or
U-Boot will crash due to NULL pointer access.

With this commit, 'dm_test_eth_act' test case passes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-29 14:05:52 -05:00
Bin Meng
a16edabe7f net: eth: Clear MAC address in eth_pre_remove()
platdata->enetaddr was assigned to a value in dev_probe() last time.
If we don't clear it, for dev_probe() at the second time, dm eth
will end up treating it as a MAC address from ROM no matter where it
came from originally (maybe env, ROM, or even random). Fix this by
clearing platdata->enetaddr when removing an Ethernet device.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-29 14:05:51 -05:00
Josh Wu
219cc94a3f net: change the env name to use const
As we don't modify the 'name' parameter, so change it to const.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-28 15:01:10 -05:00
Gong Qianyu
7aba0f2c2c net/eth: fix a bug in on_ethaddr()
The loop should check all ethenet devices, not only the first device,
to set each specified ethaddr, or it'll cause failure when we use other
devices.

Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-28 15:00:15 -05:00
Bernhard Nortmann
eaa8a195cc net: expose eth_is_active() function to test network device state
The previous eth_device struct returned by eth_get_dev() allowed
code to directly query the state member field. However, with
CONFIG_DM_ETH this data gets encapsulated (i.e. private), and
eth_get_dev() returns a udevice struct 'abstraction' instead.

This breaks legacy code relying on the former behaviour - e.g.
netconsole.
(see http://lists.denx.de/pipermail/u-boot/2015-June/216528.html)

The patch introduces a method to retrieve the ethernet device
state in a 'clean' and uniform way, supporting both legacy code
and driver model. The new function eth_is_active() accepts a
device struct pointer and tests it for ETH_STATE_ACTIVE.

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-09-29 21:54:45 -05:00
Bin Meng
e408c42189 dm: eth: Correctly detect alias in eth_get_dev_by_name()
When given a device name string, we should test to see if it is
really an alias like "eth#".

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-09-09 07:48:03 -06:00
Bin Meng
d8f79afa03 dm: eth: Do not print misleading "Net Initialization Skipped"
With driver model, board_eth_init() or cpu_eth_init() is not a must.
Thus we don't need print a misleading "Net Initialization Skipped".

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-09-09 07:48:03 -06:00
Simon Glass
b86f795a37 net: Allow drivers to return -ENOSYS with the write_hwaddr() method
Some drivers may want to implement this method for some of their devices but
not for others. So it is not possible to just leave the operation out of
the table. Drivers could get around this by masquerading as two separate
drivers but that seems unpleasant.

Allow the driver to return an error when it does not want to process the
write_hwaddr() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:41 -06:00
Simon Glass
a1ca92eaaf dm: eth: Avoid blocking on packet reception
Some devices can take a long time to work out whether they have a new packet
or now. For example the ASIX USB Ethernet dongle can take 5 seconds to do
this, since it waits until it gets a new packet on the wire before allowing
the USB bulk read packet to be submitted.

At present with driver mode the Ethernet receive code reads 32 packets. This
can take a very long time if we must wait for all 32 packets. The old code
(before driver model) worked by reading a single set of packets from the USB
device, then processing all the packets with in. It would be nice to use
the same behaviour with driver model.

Add a flag to the receive method which indicates that the driver should try
to find a packet if available, by consulting the hardware. When the flag is
not set, it should just return any packet data it has already received. If
there is none, it should return -EAGAIN so that the loop will terminate.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:40 -06:00
Joe Hershberger
6e0d26c050 net: Handle ethaddr changes as an env callback
When the ethaddr is changed in the env, update the device pdata at the
same time (only if it is probed for the DM case; only if registered for
the non-DM case). Again this gets us closer to completely non-polled
env needed to simplify the net_loop.

This requires that the NET feature select the REGEX feature.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2015-05-21 09:16:16 -04:00
Joe Hershberger
2d1febf7d5 net: Remove duplicate bootfile syncing functionality
The bootfile env var is already kept up to date by the callback in net.c
so there is no need to poll it too.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2015-05-21 09:13:20 -04:00
Joe Hershberger
bef1014b31 net: Implement random ethaddr fallback in eth.c
Implement the random ethaddr fallback in eth.c so it is in a common
place and not reimplemented in each board or driver that wants this
behavior.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-05-19 13:33:21 -05:00
Joe Hershberger
f566c9949f net: Update hardware MAC address if it changes in env
When the ethaddr changes in the env, the hardware should also be updated
so that MAC filtering will work properly without resetting U-Boot.

Also remove the manual calls to set the hwaddr that was included in a
few drivers as a result of the framework not doing it.

Reported-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
2015-05-19 13:33:21 -05:00
Simon Glass
3bc427006a dm: net: Use existing Ethernet init for driver model
At present even with driver model is used there is still much manual init
of related devices: PHY, environment and board init. Until these requirements
are dealt with in another way we need to keep them around.

Break out the init portion of the legacy eth_initialize() into a separate
function and call it from both the legacy and driver model eth_initialize()
functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-04-18 11:11:36 -06:00
Joe Hershberger
bc0571fc10 net: cosmetic: Fix checkpatch.pl failures in net.c
Finish eliminating CamelCase from net.c and other failures

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:35 -06:00
Joe Hershberger
ff819a3a33 net: cosmetic: Fix checkpatch.pl failures in eth.c
There were still a few failures in net/eth.c, especially in the legacy
part of the code.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:35 -06:00
Joe Hershberger
0adb5b761f net: cosmetic: Name ethaddr variables consistently
Use "_ethaddr" at the end of variables and drop CamelCase.
Make constant values actually 'const'.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:32 -06:00
Joe Hershberger
1411157d85 net: cosmetic: Fixup var names related to boot file
The variables around the bootfile were inconsistent and used CamelCase.
Update them to make the code more readable.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:32 -06:00
Joe Hershberger
049a95a775 net: cosmetic: Change IPaddr_t to struct in_addr
This patch is simply clean-up to make the IPv4 type that is used match
what Linux uses. It also attempts to move all variables that are IP
addresses use good naming instead of CamelCase. No functional change.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:32 -06:00
Joe Hershberger
63c9729a13 dm: eth: Provide a way for drivers to manage packet buffers
Some drivers need a chance to manage their receive buffers after the
packet has been handled by the network stack. Add an operation that
will allow the driver to be called in that case.

Reported-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Tested-on: pcduino3
2015-04-18 11:11:18 -06:00
Joe Hershberger
60304592b9 net: Improve error handling
Take a pass at plumbing errors through to the users of the network stack

Currently only the start() function errors will be returned from
NetLoop(). recv() tends not to have errors, so that is likely not worth
adding. send() certainly can return errors, but this patch does not
attempt to plumb them yet. halt() is not expected to error.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:14 -06:00
Joe Hershberger
6536b9bb76 dm: eth: Add support for ethprime env var
The ethprime env var is used to indicate the starting device if none is
specified in ethact. Also support aliases specified in the ethprime var.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:13 -06:00
Joe Hershberger
e58780dcb7 dm: eth: Add support for aliases
Allow network devices to be referred to as "eth0" instead of
"eth@12345678" when specified in ethact.

Add tests to verify this behavior.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:13 -06:00
Joe Hershberger
17591405a7 dm: eth: Pass the packet pointer as a parameter to recv
Stop forcing drivers to call net_process_received_packet() - formerly
called NetReceive(). Now the uclass will handle calling the driver for
each packet until the driver errors or has nothing to return. The uclass
will then pass the good packets off to the network stack by calling
net_process_received_packet().

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2015-04-18 11:11:12 -06:00
Joe Hershberger
05c3e68f85 dm: eth: Add basic driver model support to Ethernet stack
First just add support for MAC drivers.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:12 -06:00
Joe Hershberger
d2eaec6006 net: Remove the bd* parameter from net stack functions
This value is not used by the network stack and is available in the
global data, so stop passing it around.  For the one legacy function
that still expects it (init op on old Ethernet drivers) pass in the
global pointer version directly to avoid changing that interface.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
(Trival fix to remove an unneeded variable declaration in 4xx_enet.c)
2015-04-18 11:11:11 -06:00
Joe Hershberger
fce6900b49 net: Use int instead of u8 for boolean flag
On some archs masking the parameter is inefficient, so don't use u8.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:11 -06:00
Joe Hershberger
05324a488b net: Change return codes from net/eth.c to use errorno constants
Many functions returned -1 previously. Change them to return appropriate error
codes.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:11 -06:00
Joe Hershberger
84eb1fba7b net: Refactor in preparation for driver model
Move some things around and organize things so that the driver model
implementation will fit in more easily.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:10 -06:00
Joe Hershberger
4c7c65afbe net: Rename helper function to be more clear
Make it clear that the helper is checking the addr, not setting it.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:10 -06:00
Jeroen Hofstee
783a91fdbb eth: make eth_address_set static
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-25 07:02:01 -04:00
Pavel Machek
75d9a45cb0 Ethernet: let user know if there is no valid ethernet address
Improve error messages in case of invalid/unset ethernet addresses.

Signed-off-by: Pavel Machek <pavel@denx.de>
2014-07-22 07:44:28 -04:00
Masahiro Yamada
da384a9d76 net: rename and refactor eth_rand_ethaddr() function
Some functions in include/net.h are ported from
include/linux/etherdevice.h of Linux Kernel.

For ex.
  is_zero_ether_addr()
  is_multicast_ether_addr()
  is_broadcast_ether_addr()
  is_valid_ether_addr();

So, we should use the same function name as that of Linux Kernel,
eth_rand_addr(), for consistency.

Besides, eth_rand_addr() has been implemented as an inline function.
So it should not be surrounded by #ifdef CONFIG_RANDOM_MACADDR.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2014-05-12 15:19:46 -04:00
Alexey Brodkin
27ee59af28 net: execute "miiphy_init" if CONFIG_PHYLIB defined
In "common/Makefile" "miiphyutil.o" gets built if any of the following
items enabled:
 * CONFIG_PHYLIB
 * CONFIG_MII
 * CONFIG_CMD_MII

So it's possible to not define CONFIG_MII or CONFIG_CMD_MII and still
use functions like "miiphy_get_dev_by_name".

In its turn "miiphy_get_dev_by_name" traverses "mii_devs" list which is
not initialized because "miiphy_init" never got called.

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2014-02-07 09:16:36 -05:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Benoît Thébaudeau
460f949f89 net: eth_write_hwaddr: Return error for invalid MACs
If dev->enetaddr was supposed to be set with dev->write_hwaddr() but the MAC
address was not valid, return an error.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-09-27 12:21:36 -05:00
Joe Hershberger
f8be7d659c net: Improve the speed of netconsole
Previously u-boot would initialize the network interface for every
network operation and then shut it down again.  This makes sense for
most operations where the network in not known to be needed soon after
the operation is complete.  In the case of netconsole, it will use the
network for every interaction with the shell or every printf.  This
means that the network is being reinitialized very often.  On many
devices, this intialization is very slow.

This patch checks for consecutive netconsole actions and leaves the
ethernet hardware initialized between them.  It will still behave the
same old way for all other network operations and any time another
network operation happens between netconsole operations.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-24 13:55:43 -05:00
Michael Walle
46c07bcf12 api: net: fix length check in eth_receive()
If the requested length is too small to hold the received packet,
eth_receive() will return -1 and will leave the packet in the receive
buffers. Instead of returning an error in this case, we return the first
portion of the received packet and remove it from the receive buffers.

This fixes FreeBSD's ubldr. Without this patch it will just stop receiving
packets if the NIC receives more than PKTBUFSRX too large packets.

Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Rafal Jaworowski <raj@semihalf.com>
Cc: Piotr Kruszynski <ppk@semihalf.com>
2012-09-24 13:17:24 -05:00
Joe Hershberger
154177e14a net: Inline the new eth_setenv_enetaddr_by_index function
This function is currently only used in one case.  Inline for now.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-07-11 13:15:32 -05:00
Rob Herring
c88ef3c12d net: allow setting env enetaddr from net device setting
If the net driver has setup a valid ethernet address and an ethernet
address is not set in the environment already, then set the environment
variables from the net driver setting.

This enables pxe booting on boards which don't set ethaddr env variable.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-07-11 13:15:32 -05:00
Michael Walle
03c1b04f86 net: add helper to generate random mac address
Add new function eth_random_enetaddr() to generate a locally administered
ethernet address.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Joe Hershberger <joe.hershberger@gmail.com>
2012-07-07 14:07:32 +02:00
Mike Frysinger
de30122bb5 net: move bootfile init into eth_initialize
All arches init this the same way, so move the logic into the core
net code to avoid duplicating it everywhere else.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15 17:32:33 -05:00
Joe Hershberger
66c7385a5f net: cosmetic: eth.c checkpatch compliance
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2012-05-15 17:16:10 -05:00
Joe Hershberger
db288a9602 net: Remove volatile from net API
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2012-05-15 17:10:04 -05:00
Eric Miao
6937664426 net/eth.c: fix eth_write_hwaddr() to use dev->enetaddr as fall back
Ignore the return value of eth_getenv_enetaddr_by_index(), and if it
fails, fall back to use dev->enetaddr, which could be filled up by
the ethernet device driver:

With the current code, introduced with below commit, eth_write_hwaddr()
will fail immediately if there is no eth<n>addr in the environment variables.

However, e.g. for an overo based product that uses the SMSC911x ethernet
chip (with the MAC address set via EEPROM connected to the SMSC911x chip),
the MAC address is still OK.

On mx28 boards that are depending on the OCOTP bits to set the MAC address
(like the Denx m28 board), the OCOTP bits should be used instead of
failing on the environment variables.

Actually, this was the original behavior, and was later changed by
commit 7616e78508.

Signed-off-by: Eric Miao <eric.miao@linaro.org>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
CC: Stefan Roese <sr@denx.de>
CC: Eric Miao <eric.miao@linaro.org>
CC: Wolfgang Denk <wd@denx.de>
CC: Philip Balister <philip@balister.org>
CC: Zach Sadecki <zach@itwatchdogs.com>
2012-04-03 19:25:45 -05:00
Simon Glass
770605e4f9 bootstage: Replace show_boot_progress/error() with bootstage_...()
These calls should not be made directly any more, since bootstage
will call the show_boot_...() functions as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:41:39 +01:00
Simon Glass
c8e66db789 bootstage: Convert net progress numbers to enums
This changes over the network-related progress numbers to use enums
from bootstage.h.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:33:05 +01:00
Simon Glass
5ddb118da4 bootstage: Use show_boot_error() for -ve progress numbers
Rather than the caller negating our progress numbers to indicate an
error has occurred, which seems hacky, add a function to indicate this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-03-18 20:56:00 +01:00
Mike Frysinger
f6add132f6 net/miiphy/serial: drop duplicate "NAMESIZE" define
A few subsystems are using the same define "NAMESIZE".  This has been
working so far because they define it to the same number.  However, I
want to change the size of eth_device's NAMESIZE, so rather than tweak
the define names, simply drop references to it.  Almost no one does,
and the handful that do can easily be changed to a sizeof().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-18 20:11:22 +01:00
Marek Vasut
021f6038a2 PPC: Drop mv6446x_eth_initialize() from net/eth.c
This function was defined as an extern in net/eth.c, drop that and use
standard means of calling it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
2012-03-06 21:13:26 +01:00