linux-stable.git/net/dsa/switch.c, branch linux-5.0.y

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: support cross-chip FDB operations

2017-12-03T02:21:17+00:00

When a MAC address is added to or removed from a switch port in the
fabric, the target switch must program its port and adjacent switches
must program their local DSA port used to reach the target switch.

For this purpose, use the dsa_towards_port() helper to identify the
local switch port which must be programmed.

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

net: dsa: add switch mdb bitmap functions

2017-12-03T02:18:56+00:00

This patch brings no functional changes.
It moves out the MDB code iterating on a multicast group into new
dsa_switch_mdb_{prepare,add}_bitmap() functions.

This gives us a better isolation of the two switchdev phases.

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

net: dsa: add switch vlan bitmap functions

2017-12-03T02:18:56+00:00

This patch brings no functional changes.
It moves out the VLAN code iterating on a list of VLAN members into new
dsa_switch_vlan_{prepare,add}_bitmap() functions.

This gives us a better isolation of the two switchdev phases.

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

net: dsa: remove trans argument from mdb ops

2017-12-03T02:18:56+00:00

The DSA switch MDB ops pass the switchdev_trans structure down to the
drivers, but no one is using them and they aren't supposed to anyway.

Remove the trans argument from MDB prepare and add operations.

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

net: dsa: remove trans argument from vlan ops

2017-12-03T02:18:55+00:00

The DSA switch VLAN ops pass the switchdev_trans structure down to the
drivers, but no one is using them and they aren't supposed to anyway.

Remove the trans argument from VLAN prepare and add operations.

At the same time, fix the following checkpatch warning:

    WARNING: line over 80 characters
    #74: FILE: drivers/net/dsa/dsa_loop.c:177:
    +				      const struct switchdev_obj_port_vlan *vlan)

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

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-11-12T00:17:05+00:00

net: dsa: return after vlan prepare phase

2017-11-11T06:45:09+00:00

The current code does not return after successfully preparing the VLAN
addition on every ports member of a it. Fix this.

Fixes: 1ca4aa9cd4cc ("net: dsa: check VLAN capability of every switch")
Signed-off-by: Vivien Didelot 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: return after mdb prepare phase

2017-11-11T06:45:09+00:00

The current code does not return after successfully preparing the MDB
addition on every ports member of a multicast group. Fix this.

Fixes: a1a6b7ea7f2d ("net: dsa: add cross-chip multicast support")
Reported-by: Egil Hjelmeland 
Signed-off-by: Vivien Didelot 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: switch: Don't add CPU port to an mdb by default

2017-11-10T04:41:40+00:00

Now that the host indicates when a multicast group should be forwarded
from the switch to the host, don't do it by default.

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