linux-toradex.git/include/net/dsa.h, branch v5.1-rc4

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

dsa: Remove phydev parameter from disable_port call

2019-02-25T06:30:34+00:00

No current DSA driver makes use of the phydev parameter passed to the
disable_port call. Remove it.

Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: add support for bridge flags

2019-02-21T22:53:07+00:00

The Linux bridge implementation allows various properties of the bridge
to be controlled, such as flooding unknown unicast and multicast frames.
This patch adds the necessary DSA infrastructure to allow the Linux
bridge support to control these properties for DSA switches.

Reviewed-by: Vivien Didelot 
Signed-off-by: Russell King 
[florian: Add missing dp and ds variables declaration to fix build]
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Split platform data to header file

2019-01-17T19:31:24+00:00

Instead of having net/dsa.h contain both the internal switch tree/driver
structures, split the relevant platform_data parts into
include/linux/platform_data/dsa.h and make that header be included by
net/dsa.h in order not to break any setup. A subsequent set of patches
will update code including net/dsa.h to include only the platform_data
header.

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

net: dsa: Add ndo_get_phys_port_name() for CPU port

2019-01-17T05:12:21+00:00

There is not currently way to infer the port number through sysfs that
is being used as the CPU port number. Overlay a ndo_get_phys_port_name()
operation onto the DSA master network device in order to retrieve that
information.

Signed-off-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: Add overhead to tag protocol ops.

2018-12-06T20:18:16+00:00

Each DSA tag protocol needs to add additional headers to the Ethernet
frame in order to direct it towards a specific switch egress port. It
must also remove the head from a frame received from a
switch. Indicate the maximum size of these headers in the tag protocol
ops structure, so the core can take these overheads into account.

Signed-off-by: Andrew Lunn 
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: Remove VLA usage

2018-07-18T22:08:31+00:00

We avoid 2 VLAs by using a pre-allocated field in dsa_switch. We also
try to avoid dynamic allocation whenever possible (when using fewer than
bits-per-long ports, which is the common case).

Link: http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Link: http://lkml.kernel.org/r/20180505185145.GB32630@lunn.ch
Signed-off-by: Salvatore Mesoraca 
[kees: tweak commit subject and message slightly]
Signed-off-by: Kees Cook 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: Plug in PHYLINK support

2018-05-11T16:03:06+00:00

Add support for PHYLINK within the DSA subsystem in order to support more
complex devices such as pluggable (SFP) and non-pluggable (SFF) modules, 10G
PHYs, and traditional PHYs. Using PHYLINK allows us to drop some amount of
complexity we had while probing fixed and non-fixed PHYs using Device Tree.

Because PHYLINK separates the Ethernet MAC/port configuration into different
stages, we let switch drivers implement those, and for now, we maintain
functionality by calling dsa_slave_adjust_link() during
phylink_mac_link_{up,down} which provides semantically equivalent steps.

Drivers willing to take advantage of PHYLINK should implement the phylink_mac_*
operations that DSA wraps.

We cannot quite remove the adjust_link() callback just yet, because a number of
drivers rely on that for configuring their "CPU" and "DSA" ports, this is done
dsa_port_setup_phy_of() and dsa_port_fixed_link_register_of() still.

Drivers that utilize fixed links for user-facing ports (e.g: bcm_sf2) will need
to implement phylink_mac_ops from now on to preserve functionality, since PHYLINK
*does not* create a phy_device instance for fixed links.

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