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| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-09-11 04:06:58 +0300 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2022-09-20 10:32:35 +0200 |
| commit | 8f6a19c0316deb48cdfdc5335de9a6d7db5b7b62 (patch) | |
| tree | aecbbc43186c32448a714c01d7965422ea7b529a /include/net/dsa.h | |
| parent | net: introduce iterators over synced hw addresses (diff) | |
| download | linux-dev-8f6a19c0316deb48cdfdc5335de9a6d7db5b7b62.tar.xz linux-dev-8f6a19c0316deb48cdfdc5335de9a6d7db5b7b62.zip | |
net: dsa: introduce dsa_port_get_master()
There is a desire to support for DSA masters in a LAG.
That configuration is intended to work by simply enslaving the master to
a bonding/team device. But the physical DSA master (the LAG slave) still
has a dev->dsa_ptr, and that cpu_dp still corresponds to the physical
CPU port.
However, we would like to be able to retrieve the LAG that's the upper
of the physical DSA master. In preparation for that, introduce a helper
called dsa_port_get_master() that replaces all occurrences of the
dp->cpu_dp->master pattern. The distinction between LAG and non-LAG will
be made later within the helper itself.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/net/dsa.h')
| -rw-r--r-- | include/net/dsa.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index f2ce12860546..23eac1bda843 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -718,6 +718,11 @@ static inline bool dsa_port_offloads_lag(struct dsa_port *dp, return dsa_port_lag_dev_get(dp) == lag->dev; } +static inline struct net_device *dsa_port_to_master(const struct dsa_port *dp) +{ + return dp->cpu_dp->master; +} + static inline struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) { |