diff options
| -rw-r--r-- | target/linux/generic/backport-5.10/770-v5.15-net-dsa-mt7530-support-MDB-operations.patch | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/770-v5.15-net-dsa-mt7530-support-MDB-operations.patch b/target/linux/generic/backport-5.10/770-v5.15-net-dsa-mt7530-support-MDB-operations.patch new file mode 100644 index 0000000000..5d91d5a657 --- /dev/null +++ b/target/linux/generic/backport-5.10/770-v5.15-net-dsa-mt7530-support-MDB-operations.patch @@ -0,0 +1,171 @@ +From 1f11a07a33bc26997c18b633d63f088bf75d11f2 Mon Sep 17 00:00:00 2001 +From: DENG Qingfang <dqfext@gmail.com> +Date: Tue, 24 Aug 2021 11:37:50 +0800 +Subject: [PATCH] net: dsa: mt7530: support MDB operations + +This is a partial backport of commit 5a30833b9a16f8d1aa15de06636f9317ca51f9df +("net: dsa: mt7530: support MDB and bridge flag operations") upstream. + +Signed-off-by: DENG Qingfang <dqfext@gmail.com> +--- + drivers/net/dsa/mt7530.c | 78 ++++++++++++++++++++++++++++++++++++++-- + net/dsa/tag_mtk.c | 14 +------- + 2 files changed, 76 insertions(+), 16 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -1000,9 +1000,6 @@ mt753x_cpu_port_enable(struct dsa_switch + 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)); +@@ -1138,6 +1135,20 @@ mt7530_stp_state_set(struct dsa_switch * + } + + static int ++mt7530_port_egress_floods(struct dsa_switch *ds, int port, ++ bool unicast, bool multicast) ++{ ++ struct mt7530_priv *priv = ds->priv; ++ ++ mt7530_rmw(priv, MT7530_MFC, ++ UNU_FFP(BIT(port)) | UNM_FFP(BIT(port)), ++ (unicast ? UNU_FFP(BIT(port)) : 0) | ++ (multicast ? UNM_FFP(BIT(port)) : 0)); ++ ++ return 0; ++} ++ ++static int + mt7530_port_bridge_join(struct dsa_switch *ds, int port, + struct net_device *bridge) + { +@@ -1357,6 +1368,63 @@ err: + } + + static int ++mt7530_port_mdb_prepare(struct dsa_switch *ds, int port, ++ const struct switchdev_obj_port_mdb *mdb) ++{ ++ return 0; ++} ++ ++static void ++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; ++ ++ 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); ++ mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); ++ ++ mutex_unlock(&priv->reg_mutex); ++} ++ ++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) + { + struct mt7530_dummy_poll p; +@@ -2794,11 +2862,15 @@ static const struct dsa_switch_ops mt753 + .port_change_mtu = mt7530_port_change_mtu, + .port_max_mtu = mt7530_port_max_mtu, + .port_stp_state_set = mt7530_stp_state_set, ++ .port_egress_floods = mt7530_port_egress_floods, + .port_bridge_join = mt7530_port_bridge_join, + .port_bridge_leave = mt7530_port_bridge_leave, + .port_fdb_add = mt7530_port_fdb_add, + .port_fdb_del = mt7530_port_fdb_del, + .port_fdb_dump = mt7530_port_fdb_dump, ++ .port_mdb_prepare = mt7530_port_mdb_prepare, ++ .port_mdb_add = mt7530_port_mdb_add, ++ .port_mdb_del = mt7530_port_mdb_del, + .port_vlan_filtering = mt7530_port_vlan_filtering, + .port_vlan_prepare = mt7530_port_vlan_prepare, + .port_vlan_add = mt7530_port_vlan_add, +--- a/net/dsa/tag_mtk.c ++++ b/net/dsa/tag_mtk.c +@@ -24,9 +24,6 @@ static struct sk_buff *mtk_tag_xmit(stru + struct dsa_port *dp = dsa_slave_to_port(dev); + u8 xmit_tpid; + u8 *mtk_tag; +- 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 +@@ -55,10 +52,6 @@ static struct sk_buff *mtk_tag_xmit(stru + mtk_tag[0] = xmit_tpid; + 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 (xmit_tpid == MTK_HDR_XMIT_UNTAGGED) { + mtk_tag[2] = 0; +@@ -74,9 +67,6 @@ static struct sk_buff *mtk_tag_rcv(struc + 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; +@@ -102,9 +92,7 @@ static struct sk_buff *mtk_tag_rcv(struc + if (!skb->dev) + return NULL; + +- /* Only unicast or broadcast frames are offloaded */ +- if (likely(!is_multicast_skb)) +- dsa_default_offload_fwd_mark(skb); ++ dsa_default_offload_fwd_mark(skb); + + return skb; + } |