linux-toradex.git/net/dsa/dsa.c, branch v5.1-rc1

net: dsa: add KSZ9893 switch tagging support

2019-03-03T21:48:49+00:00

KSZ9893 switch is similar to KSZ9477 switch except the ingress tail tag
has 1 byte instead of 2 bytes.  The size of the portmap is smaller and
so the override and lookup bits are also moved.

Signed-off-by: Tristram Ha 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: ksz: Rename NET_DSA_TAG_KSZ to _KSZ9477

2018-12-16T22:23:33+00:00

Rename the tag Kconfig option and related macros in preparation for
addition of new KSZ family switches with different tag formats.

Signed-off-by: Tristram Ha 
Signed-off-by: Marek Vasut 
Cc: Vivien Didelot 
Cc: Woojung Huh 
Cc: David S. Miller 
Reviewed-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: tag_gswip: Add gswip to dsa_tag_protocol_to_str()

2018-09-17T15:12:11+00:00

The gswip tag was missing in the dsa_tag_protocol_to_str() function, add it.

Fixes: 7969119293f5 ("net: dsa: Add Lantiq / Intel GSWIP tag support")
Signed-off-by: Hauke Mehrtens 
Signed-off-by: David S. Miller

net: dsa: Add Lantiq / Intel GSWIP tag support

2018-09-13T15:14:33+00:00

This handles the tag added by the PMAC on the VRX200 SoC line.

The GSWIP uses internally a GSWIP special tag which is located after the
Ethernet header. The PMAC which connects the GSWIP to the CPU converts
this special tag used by the GSWIP into the PMAC special tag which is
added in front of the Ethernet header.

This was tested with GSWIP 2.1 found in the VRX200 SoCs, other GSWIP
versions use slightly different PMAC special tags.

Signed-off-by: Hauke Mehrtens 
Reviewed-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Expose tagging protocol to user-space

2018-09-07T21:49:55+00:00

There is no way for user-space to know what a given DSA network device's
tagging protocol is. Expose this information through a dsa/tagging
attribute which reflects the tagging protocol currently in use.

This is helpful for configuration (e.g: none behaves dramatically
different wrt. bridges) as well as for packet capture tools when there
is not a proper Ethernet type available.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Drop GPIO includes

2018-08-27T22:24:33+00:00

Commit 52638f71fcff ("dsa: Move gpio reset into switch driver")
moved the GPIO handling into the switch drivers but forgot
to remove the GPIO header includes.

Signed-off-by: Linus Walleij 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: forward timestamping callbacks to switch drivers

2018-02-14T19:33:37+00:00

Forward the rx/tx timestamp machinery from the dsa infrastructure to the
switch driver.

On the rx side, defer delivery of skbs until we have an rx timestamp.
This mimicks the behavior of skb_defer_rx_timestamp.

On the tx side, identify PTP packets, clone them, and pass them to the
underlying switch driver before we transmit. This mimicks the behavior
of skb_tx_timestamp.

Adjusted txstamp API to keep the allocation and freeing of the clone
in the same central function by Richard Cochran

Signed-off-by: Brandon Streiff 
Signed-off-by: Richard Cochran 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: Support prepended Broadcom tag

2017-11-13T01:34:54+00:00

Add a new type: DSA_TAG_PROTO_PREPEND which allows us to support for the
4-bytes Broadcom tag that we already support, but in a format where it
is pre-pended to the packet instead of located between the MAC SA and
the Ethertyper (DSA_TAG_PROTO_BRCM).

Signed-off-by: Florian Fainelli 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: move fixed link registration helpers

2017-10-28T09:50:12+00:00

The new bindings (dsa2.c) and the old bindings (legacy.c) share two
helpers dsa_cpu_dsa_setup and dsa_cpu_dsa_destroy, used to register or
deregister a fixed PHY if a given port has a corresponding device node.

Unclutter the code by moving them into two new port.c helpers,
dsa_port_fixed_link_register_of and dsa_port_fixed_link_(un)register_of.

Signed-off-by: Vivien Didelot 
Signed-off-by: David S. Miller

net: dsa: use dsa_is_user_port everywhere

2017-10-27T15:00:09+00:00

Most of the DSA code still check ds->enabled_port_mask directly to
inspect a given port type instead of using the provided dsa_is_user_port
helper. Change this.

Signed-off-by: Vivien Didelot 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller