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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-10-02 15:02:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-10-02 15:40:30 -0700 |
| commit | 319e4dd11a207bac2eaa9b96060145cd0d4c12d2 (patch) | |
| tree | 82d3e68236a381d6379e7fbbe8ddb4c3c81981c0 /drivers/net/ethernet/mscc | |
| parent | ea9d1f30b128c2bc5f429b3bd822b45ac9bf5114 (diff) | |
| download | lwn-319e4dd11a207bac2eaa9b96060145cd0d4c12d2.tar.gz lwn-319e4dd11a207bac2eaa9b96060145cd0d4c12d2.zip | |
net: mscc: ocelot: introduce conversion helpers between port and netdev
Since the mscc_ocelot_switch_lib is common between a pure switchdev and
a DSA driver, the procedure of retrieving a net_device for a certain
port index differs, as those are registered by their individual
front-ends.
Up to now that has been dealt with by always passing the port index to
the switch library, but now, we're going to need to work with net_device
pointers from the tc-flower offload, for things like indev, or mirred.
It is not desirable to refactor that, so let's make sure that the flower
offload core has the ability to translate between a net_device and a
port index properly.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mscc')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_net.c | 30 | ||||
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vsc7514.c | 2 |
3 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h index dc29e05103a1..abb407dff93c 100644 --- a/drivers/net/ethernet/mscc/ocelot.h +++ b/drivers/net/ethernet/mscc/ocelot.h @@ -98,6 +98,8 @@ int ocelot_port_lag_join(struct ocelot *ocelot, int port, struct net_device *bond); void ocelot_port_lag_leave(struct ocelot *ocelot, int port, struct net_device *bond); +struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port); +int ocelot_netdev_to_port(struct net_device *dev); u32 ocelot_port_readl(struct ocelot_port *port, u32 reg); void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg); diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c index 028a0150f97d..64e619f0f5b2 100644 --- a/drivers/net/ethernet/mscc/ocelot_net.c +++ b/drivers/net/ethernet/mscc/ocelot_net.c @@ -656,6 +656,36 @@ static const struct net_device_ops ocelot_port_netdev_ops = { .ndo_do_ioctl = ocelot_ioctl, }; +struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + struct ocelot_port_private *priv; + + if (!ocelot_port) + return NULL; + + priv = container_of(ocelot_port, struct ocelot_port_private, port); + + return priv->dev; +} + +static bool ocelot_port_dev_check(const struct net_device *dev) +{ + return dev->netdev_ops == &ocelot_port_netdev_ops; +} + +int ocelot_netdev_to_port(struct net_device *dev) +{ + struct ocelot_port_private *priv; + + if (!dev || !ocelot_port_dev_check(dev)) + return -EINVAL; + + priv = netdev_priv(dev); + + return priv->chip_port; +} + static void ocelot_port_get_strings(struct net_device *netdev, u32 sset, u8 *data) { diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 086cddef319f..f3e54589e6d6 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -763,6 +763,8 @@ static u16 ocelot_wm_enc(u16 value) static const struct ocelot_ops ocelot_ops = { .reset = ocelot_reset, .wm_enc = ocelot_wm_enc, + .port_to_netdev = ocelot_port_to_netdev, + .netdev_to_port = ocelot_netdev_to_port, }; static const struct vcap_field vsc7514_vcap_es0_keys[] = { |