u-boot.git/net, branch v2012.07-rc1

Minor Coding Style cleanup

2012-07-10T07:18:33+00:00

Signed-off-by: Wolfgang Denk

net: make net_rand.h inclusion depend on BOOTP_RANDOM_DELAY

2012-07-08T20:39:42+00:00

commit "net: use common rand()/srand() functions" introduced the following
build warning on the current u-boot-arm tree:

$ ./MAKEALL MPC8313ERDB_66
Configuring for MPC8313ERDB_66 - Board: MPC8313ERDB, Options: SYS_66MHZ
   text	   data	    bss	    dec	    hex	filename
 271988	  13976	  41768	 327732	  50034	./u-boot
In file included from bootp.c:15:0:
net_rand.h: In function 'srand_mac':
net_rand.h:40:2: warning: implicit declaration of function 'srand' [-Wimplicit-function-declaration]

adding this dependency fixes it.

Cc: Michael Walle 
Cc: Joe Hershberger 
Signed-off-by: Kim Phillips 
Acked-by: Michael Walle

net: add helper to generate random mac address

2012-07-07T12:07:32+00:00

Add new function eth_random_enetaddr() to generate a locally administered
ethernet address.

Signed-off-by: Michael Walle 
Acked-by: Joe Hershberger

net: use common rand()/srand() functions

2012-07-07T12:07:32+00:00

Replace rand() with the functions from lib/. The link-local network code
stores its own seed, derived from the MAC address. Thus making it
independent from calls to srand() in other modules.

Signed-off-by: Michael Walle 
Acked-by: Joe Hershberger

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

net: Work-around for brain-damaged Cisco equipment with arp-proxy

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

Cisco's arp-proxy feature fails to ignore the link-local address range
This means that a link-local device on a network with this Cisco
equipment will reply to ARP requests for our device (in addition to
our reply).
If we happen to reply first, the requester's ARP table will be
populated with our MAC address, and one packet will be sent to us...
shortly following this, the requester will get an ARP reply from the
Cisco equipment telling the requester to send packets their way
instead of to our device from now on.
This work-around detects this link-local condition and will delay
replying to the ARP request for 5ms so that the first packet is sent
to the Cisco equipment and all following packets are sent to our
device.

Signed-off-by: Joe Hershberger

net: Add link-local addressing support

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

Code based on networking/zcip.c in busybox
commit 8531d76a15890c2c535908ce888b2e2aed35b172

Signed-off-by: Joe Hershberger

net: Separate ArpRequest() into lower-level func

2012-05-23T22:53:07+00:00

Link-local support will need to send ARP packets, but needs more
fine-grained control over the contents.  Split the implementation
into 2 parts so link-local can share the code.

Signed-off-by: Joe Hershberger

net: Don't copy every packet that waits for an ARP

2012-05-23T22:53:07+00:00

Use the NetArpTxPacket for the ARP packet, not to hold what used to
be in NetTxPacket.
This saves a copy and makes the code easier to understand.

Signed-off-by: Joe Hershberger 
Acked-by: Simon Glass

net: Fix net buffer initialization

2012-05-23T22:53:06+00:00

A new non-static function net_init() will initialize buffers and
read from the environment.  Only update from the env on each entry
to NetLoop().

Signed-off-by: Joe Hershberger 
Acked-by: Simon Glass