diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-12-06 18:57:58 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-08 14:31:16 -0800 |
| commit | 857fdd74fb38dad4d0333401fb1826cd8cf0df2c (patch) | |
| tree | 006a5609fe64795e5c6e693c300c3e6206be8e68 /net | |
| parent | b079922ba2acf072b23d82fa246a0d8de198f0a2 (diff) | |
| download | linux-857fdd74fb38dad4d0333401fb1826cd8cf0df2c.tar.bz2 | |
net: dsa: eliminate dsa_switch_ops :: port_bridge_tx_fwd_{,un}offload
We don't really need new switch API for these, and with new switches
which intend to add support for this feature, it will become cumbersome
to maintain.
The change consists in restructuring the two drivers that implement this
offload (sja1105 and mv88e6xxx) such that the offload is enabled and
disabled from the ->port_bridge_{join,leave} methods instead of the old
->port_bridge_tx_fwd_{,un}offload.
The only non-trivial change is that mv88e6xxx_map_virtual_bridge_to_pvt()
has been moved to avoid a forward declaration, and the
mv88e6xxx_reg_lock() calls from inside it have been removed, since
locking is now done from mv88e6xxx_port_bridge_{join,leave}.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/port.c | 39 |
1 files changed, 3 insertions, 36 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c index fbf2d7fc5c91..20f183213cbc 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -270,37 +270,6 @@ static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp) */ } -static void dsa_port_bridge_tx_fwd_unoffload(struct dsa_port *dp, - struct dsa_bridge bridge) -{ - struct dsa_switch *ds = dp->ds; - - /* No bridge TX forwarding offload => do nothing */ - if (!ds->ops->port_bridge_tx_fwd_unoffload || !bridge.num) - return; - - /* Notify the chips only once the offload has been deactivated, so - * that they can update their configuration accordingly. - */ - ds->ops->port_bridge_tx_fwd_unoffload(ds, dp->index, bridge); -} - -static bool dsa_port_bridge_tx_fwd_offload(struct dsa_port *dp, - struct dsa_bridge bridge) -{ - struct dsa_switch *ds = dp->ds; - int err; - - /* FDB isolation is required for TX forwarding offload */ - if (!ds->ops->port_bridge_tx_fwd_offload || !bridge.num) - return false; - - /* Notify the driver */ - err = ds->ops->port_bridge_tx_fwd_offload(ds, dp->index, bridge); - - return err ? false : true; -} - static int dsa_port_bridge_create(struct dsa_port *dp, struct net_device *br, struct netlink_ext_ack *extack) @@ -362,7 +331,6 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, }; struct net_device *dev = dp->slave; struct net_device *brport_dev; - bool tx_fwd_offload; int err; /* Here the interface is already bridged. Reflect the current @@ -379,12 +347,13 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, if (err) goto out_rollback; - tx_fwd_offload = dsa_port_bridge_tx_fwd_offload(dp, info.bridge); + /* Drivers which support bridge TX forwarding should set this */ + dp->bridge->tx_fwd_offload = info.tx_fwd_offload; err = switchdev_bridge_port_offload(brport_dev, dev, dp, &dsa_slave_switchdev_notifier, &dsa_slave_switchdev_blocking_notifier, - tx_fwd_offload, extack); + dp->bridge->tx_fwd_offload, extack); if (err) goto out_rollback_unbridge; @@ -435,8 +404,6 @@ void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) */ dsa_port_bridge_destroy(dp, br); - dsa_port_bridge_tx_fwd_unoffload(dp, info.bridge); - err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); if (err) dev_err(dp->ds->dev, |