mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-11-24 14:06:15 +00:00
c4e6a147a6
Import patches accepted upstream introducing port isolation feature
on MT7530 switches:
- [net-next,v3,1/2] net: dsa: mt7530: factor out bridge join/leave logic
https://git.kernel.org/netdev/net-next/c/c25c961fc7f3
- [net-next,v3,2/2] net: dsa: mt7530: add support for bridge port isolation
https://git.kernel.org/netdev/net-next/c/3d49ee2127c2
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
177 lines
6.2 KiB
Diff
177 lines
6.2 KiB
Diff
From c25c961fc7f36682f0a530150f1b7453ebc344cd Mon Sep 17 00:00:00 2001
|
||
From: Matthias Schiffer <mschiffer@universe-factory.net>
|
||
Date: Tue, 18 Jun 2024 09:17:12 +0200
|
||
Subject: [PATCH 1/2] net: dsa: mt7530: factor out bridge join/leave logic
|
||
MIME-Version: 1.0
|
||
Content-Type: text/plain; charset=UTF-8
|
||
Content-Transfer-Encoding: 8bit
|
||
|
||
As preparation for implementing bridge port isolation, move the logic to
|
||
add and remove bits in the port matrix into a new helper
|
||
mt7530_update_port_member(), which is called from
|
||
mt7530_port_bridge_join() and mt7530_port_bridge_leave().
|
||
|
||
Another part of the preparation is using dsa_port_offloads_bridge_dev()
|
||
instead of dsa_port_offloads_bridge() to check for bridge membership, as
|
||
we don't have a struct dsa_bridge in mt7530_port_bridge_flags().
|
||
|
||
The port matrix setting is slightly streamlined, now always first setting
|
||
the mt7530_port's pm field and then writing the port matrix from that
|
||
field into the hardware register, instead of duplicating the bit
|
||
manipulation for both the struct field and the register.
|
||
|
||
mt7530_port_bridge_join() was previously using |= to update the port
|
||
matrix with the port bitmap, which was unnecessary, as pm would only
|
||
have the CPU port set before joining a bridge; a simple assignment can
|
||
be used for both joining and leaving (and will also work when individual
|
||
bits are added/removed in port_bitmap with regard to the previous port
|
||
matrix, which is what happens with port isolation).
|
||
|
||
No functional change intended.
|
||
|
||
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
|
||
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
|
||
Reviewed-by: Arınç ÜNAL <arinc.unal@arinc9.com>
|
||
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
|
||
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
---
|
||
drivers/net/dsa/mt7530.c | 105 ++++++++++++++++++---------------------
|
||
1 file changed, 48 insertions(+), 57 deletions(-)
|
||
|
||
--- a/drivers/net/dsa/mt7530.c
|
||
+++ b/drivers/net/dsa/mt7530.c
|
||
@@ -1302,6 +1302,52 @@ mt7530_stp_state_set(struct dsa_switch *
|
||
FID_PST(FID_BRIDGED, stp_state));
|
||
}
|
||
|
||
+static void mt7530_update_port_member(struct mt7530_priv *priv, int port,
|
||
+ const struct net_device *bridge_dev,
|
||
+ bool join) __must_hold(&priv->reg_mutex)
|
||
+{
|
||
+ struct dsa_port *dp = dsa_to_port(priv->ds, port), *other_dp;
|
||
+ struct mt7530_port *p = &priv->ports[port], *other_p;
|
||
+ struct dsa_port *cpu_dp = dp->cpu_dp;
|
||
+ u32 port_bitmap = BIT(cpu_dp->index);
|
||
+ int other_port;
|
||
+
|
||
+ dsa_switch_for_each_user_port(other_dp, priv->ds) {
|
||
+ other_port = other_dp->index;
|
||
+ other_p = &priv->ports[other_port];
|
||
+
|
||
+ if (dp == other_dp)
|
||
+ continue;
|
||
+
|
||
+ /* Add/remove this port to/from the port matrix of the other
|
||
+ * ports in the same bridge. If the port is disabled, port
|
||
+ * matrix is kept and not being setup until the port becomes
|
||
+ * enabled.
|
||
+ */
|
||
+ if (!dsa_port_offloads_bridge_dev(other_dp, bridge_dev))
|
||
+ continue;
|
||
+
|
||
+ if (join) {
|
||
+ other_p->pm |= PCR_MATRIX(BIT(port));
|
||
+ port_bitmap |= BIT(other_port);
|
||
+ } else {
|
||
+ other_p->pm &= ~PCR_MATRIX(BIT(port));
|
||
+ }
|
||
+
|
||
+ if (other_p->enable)
|
||
+ mt7530_rmw(priv, MT7530_PCR_P(other_port),
|
||
+ PCR_MATRIX_MASK, other_p->pm);
|
||
+ }
|
||
+
|
||
+ /* Add/remove the all other ports to this port matrix. For !join
|
||
+ * (leaving the bridge), only the CPU port will remain in the port matrix
|
||
+ * of this port.
|
||
+ */
|
||
+ p->pm = PCR_MATRIX(port_bitmap);
|
||
+ if (priv->ports[port].enable)
|
||
+ mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK, p->pm);
|
||
+}
|
||
+
|
||
static int
|
||
mt7530_port_pre_bridge_flags(struct dsa_switch *ds, int port,
|
||
struct switchdev_brport_flags flags,
|
||
@@ -1345,39 +1391,11 @@ mt7530_port_bridge_join(struct dsa_switc
|
||
struct dsa_bridge bridge, bool *tx_fwd_offload,
|
||
struct netlink_ext_ack *extack)
|
||
{
|
||
- struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
|
||
- struct dsa_port *cpu_dp = dp->cpu_dp;
|
||
- u32 port_bitmap = BIT(cpu_dp->index);
|
||
struct mt7530_priv *priv = ds->priv;
|
||
|
||
mutex_lock(&priv->reg_mutex);
|
||
|
||
- dsa_switch_for_each_user_port(other_dp, ds) {
|
||
- int other_port = other_dp->index;
|
||
-
|
||
- if (dp == other_dp)
|
||
- continue;
|
||
-
|
||
- /* Add this port to the port matrix of the other ports in the
|
||
- * same bridge. If the port is disabled, port matrix is kept
|
||
- * and not being setup until the port becomes enabled.
|
||
- */
|
||
- if (!dsa_port_offloads_bridge(other_dp, &bridge))
|
||
- continue;
|
||
-
|
||
- if (priv->ports[other_port].enable)
|
||
- mt7530_set(priv, MT7530_PCR_P(other_port),
|
||
- PCR_MATRIX(BIT(port)));
|
||
- priv->ports[other_port].pm |= PCR_MATRIX(BIT(port));
|
||
-
|
||
- port_bitmap |= BIT(other_port);
|
||
- }
|
||
-
|
||
- /* Add the all other ports to this port matrix. */
|
||
- if (priv->ports[port].enable)
|
||
- mt7530_rmw(priv, MT7530_PCR_P(port),
|
||
- PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap));
|
||
- priv->ports[port].pm |= PCR_MATRIX(port_bitmap);
|
||
+ mt7530_update_port_member(priv, port, bridge.dev, true);
|
||
|
||
/* Set to fallback mode for independent VLAN learning */
|
||
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
|
||
@@ -1478,38 +1496,11 @@ static void
|
||
mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
|
||
struct dsa_bridge bridge)
|
||
{
|
||
- struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
|
||
- struct dsa_port *cpu_dp = dp->cpu_dp;
|
||
struct mt7530_priv *priv = ds->priv;
|
||
|
||
mutex_lock(&priv->reg_mutex);
|
||
|
||
- dsa_switch_for_each_user_port(other_dp, ds) {
|
||
- int other_port = other_dp->index;
|
||
-
|
||
- if (dp == other_dp)
|
||
- continue;
|
||
-
|
||
- /* Remove this port from the port matrix of the other ports
|
||
- * in the same bridge. If the port is disabled, port matrix
|
||
- * is kept and not being setup until the port becomes enabled.
|
||
- */
|
||
- if (!dsa_port_offloads_bridge(other_dp, &bridge))
|
||
- continue;
|
||
-
|
||
- if (priv->ports[other_port].enable)
|
||
- mt7530_clear(priv, MT7530_PCR_P(other_port),
|
||
- PCR_MATRIX(BIT(port)));
|
||
- priv->ports[other_port].pm &= ~PCR_MATRIX(BIT(port));
|
||
- }
|
||
-
|
||
- /* Set the cpu port to be the only one in the port matrix of
|
||
- * this port.
|
||
- */
|
||
- if (priv->ports[port].enable)
|
||
- mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
|
||
- PCR_MATRIX(BIT(cpu_dp->index)));
|
||
- priv->ports[port].pm = PCR_MATRIX(BIT(cpu_dp->index));
|
||
+ mt7530_update_port_member(priv, port, bridge.dev, false);
|
||
|
||
/* When a port is removed from the bridge, the port would be set up
|
||
* back to the default as is at initial boot which is a VLAN-unaware
|