u-boot.git/include/net.h, branch v2020.04

phy: Add support for the NC-SI protocol

2020-03-09T23:11:23+00:00

This introduces support for the NC-SI protocol, modelled as a phy driver
for other ethernet drivers to consume.

NC-SI (Network Controller Sideband Interface) is a protocol to manage a
sideband connection to a proper network interface, for example a BMC
(Baseboard Management Controller) sharing the NIC of the host system.
Probing and configuration occurs by communicating with the "remote" NIC
via NC-SI control frames (Ethernet header 0x88f8).

This implementation is roughly based on the upstream Linux
implementation[0], with a reduced feature set and an emphasis on getting
a link up as fast as possible rather than probing the full possible
topology of the bus.
The current phy model relies on the network being "up", sending NC-SI
command frames via net_send_packet() and receiving them from the
net_loop() loop (added in a following patch).

The ncsi-pkt.h header[1] is copied from the Linux kernel for consistent
field definitions.

[0]: https://github.com/torvalds/linux/tree/master/net/ncsi
[1]: https://github.com/torvalds/linux/blob/master/net/ncsi/ncsi-pkt.h

Signed-off-by: Samuel Mendoza-Jonas 
Reviewed-by: Joel Stanley 
Acked-by: Joe Hershberger

common: Move reset_phy() to net.h

2020-01-17T18:26:50+00:00

This is a network function so let's move it into that header.

Signed-off-by: Simon Glass

common: Move do_tftpb() to net.h

2020-01-17T18:26:48+00:00

This function belongs in the network header file. Move it.

Signed-off-by: Simon Glass

net: Improve documentation for string_to_ip()

2019-12-09T15:47:41+00:00

Signed-off-by: Joe Hershberger

net: Always build the string_to_enetaddr() helper

2019-12-09T15:47:41+00:00

Part of the env cleanup moved this out of the environment code and into
the net code. However, this helper is sometimes needed even when the net
stack isn't included.

Move the helper to lib/net_utils.c like it's similarly-purposed
string_to_ip(). Also rename the moved function to similar naming.

Signed-off-by: Joe Hershberger 
Reported-by: Ondrej Jirman

common: Move env_get_ip() to net.h

2019-12-02T23:23:09+00:00

This function relates to networking, so move it out of the common.h
header file.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini 
Acked-by: Joe Hershberger

common: Move random-number functions into their own header

2019-12-02T23:23:07+00:00

Create a new rand.h header file and move functions into it, to reduce
the size of common.h

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

net: make net_random_ethaddr() more random

2019-09-04T16:37:19+00:00

The net_random_ethaddr() tries to get some entropy from different
startup times of a board. The seed is initialized with get_timer() which
has only a granularity of milliseconds. We can do better if we use
get_ticks() which returns the raw timer ticks. Using this we have a
higher chance of getting different values at startup.

Signed-off-by: Michael Walle 
Reviewed-by: Bin Meng 
Acked-by: Joe Hershberger

env: net: Move eth_parse_enetaddr() to net.c/h

2019-08-11T20:43:41+00:00

This function fits better with the network subsystem, so move it.

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

env: Move env_set() to env.h

2019-08-11T20:43:41+00:00

Move env_set() over to the new header file.

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