As the hardware can manage multicast forwarding itself, trapping multicast traffic to the CPU is no longer required.
Signed-off-by: DENG Qingfang <[email protected]> --- drivers/net/dsa/mt7530.c | 58 +++++++++++++++++++++++++++++++++++++--- net/dsa/tag_mtk.c | 14 +--------- 2 files changed, 56 insertions(+), 16 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 28aab0ff6e7d..20e66cf13485 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1000,9 +1000,6 @@ mt753x_cpu_port_enable(struct dsa_switch *ds, int port) mt7530_write(priv, MT7530_PVC_P(port), PORT_SPEC_TAG); - /* Unknown multicast frame forwarding to the cpu port */ - mt7530_rmw(priv, MT7530_MFC, UNM_FFP_MASK, UNM_FFP(BIT(port))); - /* Set CPU port number */ if (priv->id == ID_MT7621) mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port)); @@ -1365,6 +1362,59 @@ mt7530_port_fdb_dump(struct dsa_switch *ds, int port, return 0; } +static int +mt7530_port_mdb_add(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct mt7530_priv *priv = ds->priv; + const u8 *addr = mdb->addr; + u16 vid = mdb->vid; + u8 port_mask = 0; + int ret; + + mutex_lock(&priv->reg_mutex); + + mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP); + if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL)) + port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP) + & PORT_MAP_MASK; + + port_mask |= BIT(port); + mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT); + ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); + + mutex_unlock(&priv->reg_mutex); + + return ret; +} + +static int +mt7530_port_mdb_del(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct mt7530_priv *priv = ds->priv; + const u8 *addr = mdb->addr; + u16 vid = mdb->vid; + u8 port_mask = 0; + int ret; + + mutex_lock(&priv->reg_mutex); + + mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP); + if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL)) + port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP) + & PORT_MAP_MASK; + + port_mask &= ~BIT(port); + mt7530_fdb_write(priv, vid, port_mask, addr, -1, + port_mask ? STATIC_ENT : STATIC_EMP); + ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); + + mutex_unlock(&priv->reg_mutex); + + return ret; +} + static int mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid) { @@ -3403,6 +3453,8 @@ static const struct dsa_switch_ops mt7530_switch_ops = { .port_fdb_add = mt7530_port_fdb_add, .port_fdb_del = mt7530_port_fdb_del, .port_fdb_dump = mt7530_port_fdb_dump, + .port_mdb_add = mt7530_port_mdb_add, + .port_mdb_del = mt7530_port_mdb_del, .port_vlan_filtering = mt7530_port_vlan_filtering, .port_vlan_add = mt7530_port_vlan_add, .port_vlan_del = mt7530_port_vlan_del, diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c index 38dcdded74c0..53b620e177ad 100644 --- a/net/dsa/tag_mtk.c +++ b/net/dsa/tag_mtk.c @@ -23,9 +23,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, struct dsa_port *dp = dsa_slave_to_port(dev); u8 *mtk_tag; bool is_vlan_skb = true; - unsigned char *dest = eth_hdr(skb)->h_dest; - bool is_multicast_skb = is_multicast_ether_addr(dest) && - !is_broadcast_ether_addr(dest); /* Build the special tag after the MAC Source Address. If VLAN header * is present, it's required that VLAN header and special tag is @@ -48,10 +45,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, MTK_HDR_XMIT_UNTAGGED; mtk_tag[1] = (1 << dp->index) & MTK_HDR_XMIT_DP_BIT_MASK; - /* Disable SA learning for multicast frames */ - if (unlikely(is_multicast_skb)) - mtk_tag[1] |= MTK_HDR_XMIT_SA_DIS; - /* Tag control information is kept for 802.1Q */ if (!is_vlan_skb) { mtk_tag[2] = 0; @@ -67,9 +60,6 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, u16 hdr; int port; __be16 *phdr; - unsigned char *dest = eth_hdr(skb)->h_dest; - bool is_multicast_skb = is_multicast_ether_addr(dest) && - !is_broadcast_ether_addr(dest); if (unlikely(!pskb_may_pull(skb, MTK_HDR_LEN))) return NULL; @@ -95,9 +85,7 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, if (!skb->dev) return NULL; - /* Only unicast or broadcast frames are offloaded */ - if (likely(!is_multicast_skb)) - skb->offload_fwd_mark = 1; + skb->offload_fwd_mark = 1; return skb; } -- 2.25.1
