linux.git/net/dsa, branch v4.13-rc2

net: manual clean code which call skb_put_[data:zero]

2017-06-20T17:30:15+00:00

Signed-off-by: yuan linyu 
Signed-off-by: David S. Miller

net: dsa: Fix legacy probing

2017-06-18T02:59:45+00:00

After commit 6d3c8c0dd88a ("net: dsa: Remove master_netdev and
use dst->cpu_dp->netdev") and a29342e73911 ("net: dsa: Associate
slave network device with CPU port") we would be seeing NULL pointer
dereferences when accessing dst->cpu_dp->netdev too early. In the legacy
code, we actually know early in advance the master network device, so
pass it down to the relevant functions.

Fixes: 6d3c8c0dd88a ("net: dsa: Remove master_netdev and use dst->cpu_dp->netdev")
Fixes: a29342e73911 ("net: dsa: Associate slave network device with CPU port")
Reported-by: Jason Cobham 
Tested-by: Jason Cobham 
Signed-off-by: Florian Fainelli 
Reviewed-by: Vivien Didelot 
Signed-off-by: David S. Miller

net: dsa: add cross-chip multicast support

2017-06-16T19:21:14+00:00

Similarly to how cross-chip VLAN works, define a bitmap of multicast
group members for a switch, now including its DSA ports, so that
multicast traffic can be sent to all switches of the fabric.

A switch may drop the frames if no user port is a member.

This brings support for multicast in a multi-chip environment.
As of now, all switches of the fabric must support the multicast
operations in order to program a single fabric port.

Reported-by: Jason Cobham 
Signed-off-by: Vivien Didelot 
Tested-by: Jason Cobham 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: assign default CPU port to all ports

2017-06-15T21:23:35+00:00

The current code only assigns the default cpu_dp to all user ports of
the switch to which the CPU port belongs. The user ports of the other
switches of the fabric thus don't have a default CPU port.

This patch fixes this by assigning the cpu_dp of all user ports of all
switches of the fabric when the tree is fully parsed.

Fixes: a29342e73911 ("net: dsa: Associate slave network device with CPU port")
Signed-off-by: Vivien Didelot 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Introduce dsa_get_cpu_port()

2017-06-13T20:35:03+00:00

Introduce a helper function which will return a reference to the CPU
port used in a dsa_switch_tree. Right now this is a singleton, but this
will change once we introduce multi-CPU port support, so ease the
transition by converting the affected code paths.

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

net: dsa: Associate slave network device with CPU port

2017-06-13T20:35:03+00:00

In preparation for supporting multiple CPU ports with DSA, have the
dsa_port structure know which CPU it is associated with. This will be
important in order to make sure the correct CPU is used for transmission
of the frames. If not for functional reasons, for performance (e.g: load
balancing) and forwarding decisions.

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

net: dsa: Relocate master ethtool operations

2017-06-13T20:35:02+00:00

Relocate master_ethtool_ops and master_orig_ethtool_ops into struct
dsa_port in order to be both consistent, and make things self contained
within the dsa_port structure.

This is a preliminary change to supporting multiple CPU port interfaces.

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

net: dsa: Remove master_netdev and use dst->cpu_dp->netdev

2017-06-13T20:35:02+00:00

In preparation for supporting multiple CPU ports, remove
dst->master_netdev and ds->master_netdev and replace them with only one
instance of the common object we have for a port: struct
dsa_port::netdev. ds->master_netdev is currently write only and would be
helpful in the case where we have two switches, both with CPU ports, and
also connected within each other, which the multi-CPU port patch series
would address.

While at it, introduce a helper function used in net/dsa/slave.c to
immediately get a reference on the master network device called
dsa_master_netdev().

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

net: phy: Make phy_ethtool_ksettings_get return void

2017-06-13T16:59:06+00:00

Make return value void since function never return meaningfull value

Signed-off-by: Yuval Shaia 
Acked-by: Sergei Shtylyov 
Signed-off-by: David S. Miller

net: dsa: add CPU and DSA ports as VLAN members

2017-06-08T15:43:32+00:00

In a multi-chip switch fabric, it is currently the responsibility of the
driver to add the CPU or DSA (interconnecting chips together) ports as
members of a new VLAN entry. This makes the drivers more complicated.

We want the DSA drivers to be stupid and the DSA core being the one
responsible for caring about the abstracted switch logic and topology.

Make the DSA core program the CPU and DSA ports as part of the VLAN.

This makes all chips of the data path to be aware of VIDs spanning the
the whole fabric and thus, seamlessly add support for cross-chip VLAN.

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