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authorDENG Qingfang <dqfext@gmail.com>2021-03-15 20:09:40 +0300
committerDavid S. Miller <davem@davemloft.net>2021-03-16 21:54:41 +0300
commit5a30833b9a16f8d1aa15de06636f9317ca51f9df (patch)
treeec3142603617da0e06d93f04fe01c19b7652723f /net/dsa
parent4b9068b74127f33469429b9c0aee984091897cfd (diff)
downloadlinux-5a30833b9a16f8d1aa15de06636f9317ca51f9df.tar.xz
net: dsa: mt7530: support MDB and bridge flag operations
Support port MDB and bridge flag operations. As the hardware can manage multicast forwarding itself, offload_fwd_mark can be unconditionally set to true. Signed-off-by: DENG Qingfang <dqfext@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/tag_mtk.c14
1 files changed, 1 insertions, 13 deletions
diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c
index 59748487664f..f9b2966d1936 100644
--- a/net/dsa/tag_mtk.c
+++ b/net/dsa/tag_mtk.c
@@ -24,9 +24,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
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(struct sk_buff *skb,
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(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;
@@ -102,9 +92,7 @@ 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;
}