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Message-Id: <20190501204506.21579-6-hauke@hauke-m.de>
Date: Wed, 1 May 2019 22:45:06 +0200
From: Hauke Mehrtens <hauke@...ke-m.de>
To: davem@...emloft.net
Cc: andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com,
netdev@...r.kernel.org, Hauke Mehrtens <hauke@...ke-m.de>
Subject: [PATCH 5/5] net: dsa: lantiq: Add Forwarding Database access
This adds functions to add and remove static entries to and from the
forwarding database and dump the full forwarding database.
Signed-off-by: Hauke Mehrtens <hauke@...ke-m.de>
---
drivers/net/dsa/lantiq_gswip.c | 98 ++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index ef8e2a827e16..83371394d6ed 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -1289,6 +1289,101 @@ static void gswip_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
GSWIP_PCE_PCTRL_0p(port));
}
+static int gswip_port_fdb(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid, bool add)
+{
+ struct gswip_priv *priv = ds->priv;
+ struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
+ struct gswip_pce_table_entry mac_bridge = {0,};
+ unsigned int cpu_port = priv->hw_info->cpu_port;
+ int fid = -1;
+ int i;
+ int err;
+
+ if (!bridge)
+ return -EINVAL;
+
+ for (i = cpu_port; i < ARRAY_SIZE(priv->vlans); i++) {
+ if (priv->vlans[i].bridge == bridge) {
+ fid = priv->vlans[i].fid;
+ break;
+ }
+ }
+
+ if (fid == -1) {
+ dev_err(priv->dev, "Port not part of a bridge\n");
+ return -EINVAL;
+ }
+
+ mac_bridge.table = 0x0b;
+ mac_bridge.key_mode = true;
+ mac_bridge.key[0] = addr[5] | (addr[4] << 8);
+ mac_bridge.key[1] = addr[3] | (addr[2] << 8);
+ mac_bridge.key[2] = addr[1] | (addr[0] << 8);
+ mac_bridge.key[3] = fid;
+ mac_bridge.val[0] = add ? BIT(port) : 0; /* port map */
+ mac_bridge.val[1] = 0x01; /* static entry */
+ mac_bridge.valid = add;
+
+ err = gswip_pce_table_entry_write(priv, &mac_bridge);
+ if (err)
+ dev_err(priv->dev, "failed to write mac brigde: %d\n", err);
+
+ return err;
+}
+
+static int gswip_port_fdb_add(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid)
+{
+ return gswip_port_fdb(ds, port, addr, vid, true);
+}
+
+static int gswip_port_fdb_del(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid)
+{
+ return gswip_port_fdb(ds, port, addr, vid, false);
+}
+
+static int gswip_port_fdb_dump(struct dsa_switch *ds, int port,
+ dsa_fdb_dump_cb_t *cb, void *data)
+{
+ struct gswip_priv *priv = ds->priv;
+ struct gswip_pce_table_entry mac_bridge = {0,};
+ unsigned char addr[6];
+ int i;
+ int err;
+
+ for (i = 0; i < 2048; i++) {
+ mac_bridge.table = 0x0b;
+ mac_bridge.index = i;
+
+ err = gswip_pce_table_entry_read(priv, &mac_bridge);
+ if (err) {
+ dev_err(priv->dev, "failed to write mac brigde: %d\n",
+ err);
+ return err;
+ }
+
+ if (!mac_bridge.valid)
+ continue;
+
+ addr[5] = mac_bridge.key[0] & 0xff;
+ addr[4] = (mac_bridge.key[0] >> 8) & 0xff;
+ addr[3] = mac_bridge.key[1] & 0xff;
+ addr[2] = (mac_bridge.key[1] >> 8) & 0xff;
+ addr[1] = mac_bridge.key[2] & 0xff;
+ addr[0] = (mac_bridge.key[2] >> 8) & 0xff;
+ if (mac_bridge.val[1] & 0x01) {
+ if (mac_bridge.val[0] & BIT(port))
+ cb(addr, 0, true, data);
+ } else {
+ if (((mac_bridge.val[0] & GENMASK(7, 4)) >> 4) == port)
+ cb(addr, 0, false, data);
+ }
+ }
+ return 0;
+}
+
static void gswip_phylink_validate(struct dsa_switch *ds, int port,
unsigned long *supported,
struct phylink_link_state *state)
@@ -1504,6 +1599,9 @@ static const struct dsa_switch_ops gswip_switch_ops = {
.port_vlan_add = gswip_port_vlan_add,
.port_vlan_del = gswip_port_vlan_del,
.port_stp_state_set = gswip_port_stp_state_set,
+ .port_fdb_add = gswip_port_fdb_add,
+ .port_fdb_del = gswip_port_fdb_del,
+ .port_fdb_dump = gswip_port_fdb_dump,
.phylink_validate = gswip_phylink_validate,
.phylink_mac_config = gswip_phylink_mac_config,
.phylink_mac_link_down = gswip_phylink_mac_link_down,
--
2.20.1
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