u-boot.git/drivers/net/netconsole.c, branch v2015.01

linux/kernel.h: sync min, max, min3, max3 macros with Linux

2014-11-23T11:48:30+00:00

U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada 
Acked-by: Pavel Machek 
Acked-by: Lukasz Majewski 
Tested-by: Lukasz Majewski 
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini

stdio: Pass device pointer to stdio methods

2014-07-23T13:07:23+00:00

At present stdio device functions do not get any clue as to which stdio
device is being acted on. Some implementations go to great lengths to work
around this, such as defining a whole separate set of functions for each
possible device.

For driver model we need to associate a stdio_dev with a device. It doesn't
seem possible to continue with this work-around approach.

Instead, add a stdio_dev pointer to each of the stdio member functions.

Note: The serial drivers have the same problem, but it is not strictly
necessary to fix that to get driver model running. Also, if we convert
serial over to driver model the problem will go away.

Code size increases by 244 bytes for Thumb2 and 428 for PowerPC.

22: stdio: Pass device pointer to stdio methods
       arm: (for 2/2 boards)  all +244.0  bss -4.0  text +248.0
   powerpc: (for 1/1 boards)  all +428.0  text +428.0

Signed-off-by: Simon Glass 
Acked-by: Marek Vasut 
Reviewed-by: Marek Vasut

netconsole loses 2nd character of input

2013-11-08T20:25:14+00:00

Netconsole loses the second character when used as input by
either setenv stdin nc or setenv stdin serial,nc if using CONSOLE_CONSOLE_MUX

Before a nc_send_packet() to echo the input, a check is done to see if
nc_ether is valid. If its not, it waits for an arp request and then sends
the packet (which contains the first character of line to be displayed as
output). As part of reaping the arp request, the second character is consumed.
We protect this by making the call to NetLoop(NETCONS) between
input_recursion.

Signed-off-by: Suriyan Ramasami 
Acked-by: Joe Hershberger

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

net: Filter incoming netconsole packets by IP

2012-09-24T18:55:44+00:00

Check the incoming packets' source IP address... if ncip isn't set to a
broadcast address, only listen to the client at ncip.

Signed-off-by: Joe Hershberger

net: Allow netconsole settings to change after nc_start

2012-09-24T18:55:43+00:00

Refresh the netconsole settings from the env before each packet instead
of only on netconsole init.

Signed-off-by: Joe Hershberger

net: Improve the speed of netconsole

2012-09-24T18:55:43+00:00

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 
Cc: Stefano Babic 
Acked-by: Stefano Babic

net: Make the netconsole buffer size configurable

2012-09-24T18:55:43+00:00

Allow a board to configure a larger buffer for netconsole, but leave
the default.

Signed-off-by: Joe Hershberger 
Cc: Mike Frysinger 
Acked-by: Mike Frysinger

net: Make netconsole src and dest ports configurable

2012-09-24T18:17:24+00:00

It is desirable to use different port numbers for sending and receiving
packets with netconsole in the case where you have more than one device
on the local subnet with netconsole enabled for broadcast.  When they
use the same port for both, any output from one will look like input to
the other.  This is typlically not desirable.

This patch allows the input and output ports to be specified separately
in the environment.

Signed-off-by: Joe Hershberger 
Cc: Mike Frysinger 
Acked-by: Mike Frysinger

net: Allow filtering on debug traces in the net subsystem

2012-05-23T22:53:08+00:00

Add several levels of DEBUG prints so that you can limit the noise to
the severety of your problem.

DEBUG_LL_STATE = Link local state machine changes
DEBUG_DEV_PKT = Packets or info directed to the device
DEBUG_NET_PKT = Packets on info on the network at large
DEBUG_INT_STATE = Internal network state changes

Signed-off-by: Joe Hershberger