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authorTristram Ha <Tristram.Ha@microchip.com>2019-02-07 20:05:58 -0800
committerDavid S. Miller <davem@davemloft.net>2019-02-11 12:46:51 -0800
commitcbd72b485214f085a022b56a3051524577d891fe (patch)
tree71e02ff49751f98d33a780b73ec59604a6411ddf /drivers/net/dsa/microchip
parent6a98afbbb4afe701bf8e0b74b4d9ea818966539e (diff)
net: dsa: microchip: add switch offload forwarding support
The flag offload_fwd_mark is set as the switch can forward frames by itself. This can be considered a fix to a problem introduced in commit c2e866911e254067 where the port membership are not set in sync. The flag offload_fwd_mark just needs to be set in tag_ksz.c to prevent the software bridge from forwarding duplicate multicast frames. Fixes: c2e866911e254067 ("microchip: break KSZ9477 DSA driver into two files") Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/microchip')
-rw-r--r--drivers/net/dsa/microchip/ksz9477.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 89ed059bb576..674d77e1b029 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -397,6 +397,7 @@ static void ksz9477_port_stp_state_set(struct dsa_switch *ds, int port,
struct ksz_port *p = &dev->ports[port];
u8 data;
int member = -1;
+ int forward = dev->member;
ksz_pread8(dev, port, P_STP_CTRL, &data);
data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
@@ -464,10 +465,10 @@ static void ksz9477_port_stp_state_set(struct dsa_switch *ds, int port,
}
/* When topology has changed the function ksz_update_port_member
- * should be called to modify port forwarding behavior. However
- * as the offload_fwd_mark indication cannot be reported here
- * the switch forwarding function is not enabled.
+ * should be called to modify port forwarding behavior.
*/
+ if (forward != dev->member)
+ ksz_update_port_member(dev, port);
}
static void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port)