diff options
Diffstat (limited to 'net/dsa/tag_8021q.c')
| -rw-r--r-- | net/dsa/tag_8021q.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c index 5baeb0893950..8e3e8a5b8559 100644 --- a/net/dsa/tag_8021q.c +++ b/net/dsa/tag_8021q.c @@ -215,7 +215,8 @@ static int dsa_8021q_setup_port(struct dsa_8021q_context *ctx, int port, int upstream = dsa_upstream_port(ctx->ds, port); u16 rx_vid = dsa_8021q_rx_vid(ctx->ds, port); u16 tx_vid = dsa_8021q_tx_vid(ctx->ds, port); - int i, err; + struct net_device *master; + int i, err, subvlan; /* The CPU port is implicitly configured by * configuring the front-panel ports @@ -223,6 +224,8 @@ static int dsa_8021q_setup_port(struct dsa_8021q_context *ctx, int port, if (!dsa_is_user_port(ctx->ds, port)) return 0; + master = dsa_to_port(ctx->ds, port)->cpu_dp->master; + /* Add this user port's RX VID to the membership list of all others * (including itself). This is so that bridging will not be hindered. * L2 forwarding rules still take precedence when there are no VLAN @@ -261,6 +264,19 @@ static int dsa_8021q_setup_port(struct dsa_8021q_context *ctx, int port, return err; } + /* Add to the master's RX filter not only @rx_vid, but in fact + * the entire subvlan range, just in case this DSA switch might + * want to use sub-VLANs. + */ + for (subvlan = 0; subvlan < DSA_8021Q_N_SUBVLAN; subvlan++) { + u16 vid = dsa_8021q_rx_vid_subvlan(ctx->ds, port, subvlan); + + if (enabled) + vlan_vid_add(master, ctx->proto, vid); + else + vlan_vid_del(master, ctx->proto, vid); + } + /* Finally apply the TX VID on this port and on the CPU port */ err = dsa_8021q_vid_apply(ctx, port, tx_vid, BRIDGE_VLAN_INFO_UNTAGGED, enabled); @@ -285,6 +301,8 @@ int dsa_8021q_setup(struct dsa_8021q_context *ctx, bool enabled) { int rc, port; + ASSERT_RTNL(); + for (port = 0; port < ctx->ds->num_ports; port++) { rc = dsa_8021q_setup_port(ctx, port, enabled); if (rc < 0) { |