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authorHoratiu Vultur <horatiu.vultur@microchip.com>2021-02-16 22:42:05 +0100
committerDavid S. Miller <davem@davemloft.net>2021-02-16 14:47:46 -0800
commita026c50b599fab8ad829f87af372866e229d8175 (patch)
treed1361f9d17b9199bf0e5ef85c417d49729d9a381 /net
parentc595c4330da06fff716337239a8d5e528341a502 (diff)
net: dsa: felix: Add support for MRP
Implement functions 'port_mrp_add', 'port_mrp_del', 'port_mrp_add_ring_role' and 'port_mrp_del_ring_role' to call the mrp functions from ocelot. Also all MRP frames that arrive to CPU on queue number OCELOT_MRP_CPUQ will be forward by the SW. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/dsa/tag_ocelot.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/dsa/tag_ocelot.c b/net/dsa/tag_ocelot.c
index f9df9cac81c5..743809b5806b 100644
--- a/net/dsa/tag_ocelot.c
+++ b/net/dsa/tag_ocelot.c
@@ -83,6 +83,7 @@ static struct sk_buff *ocelot_rcv(struct sk_buff *skb,
struct dsa_port *dp;
u8 *extraction;
u16 vlan_tpid;
+ u64 cpuq;
/* Revert skb->data by the amount consumed by the DSA master,
* so it points to the beginning of the frame.
@@ -112,6 +113,7 @@ static struct sk_buff *ocelot_rcv(struct sk_buff *skb,
ocelot_xfh_get_qos_class(extraction, &qos_class);
ocelot_xfh_get_tag_type(extraction, &tag_type);
ocelot_xfh_get_vlan_tci(extraction, &vlan_tci);
+ ocelot_xfh_get_cpuq(extraction, &cpuq);
skb->dev = dsa_master_find_slave(netdev, 0, src_port);
if (!skb->dev)
@@ -126,6 +128,12 @@ static struct sk_buff *ocelot_rcv(struct sk_buff *skb,
skb->offload_fwd_mark = 1;
skb->priority = qos_class;
+#if IS_ENABLED(CONFIG_BRIDGE_MRP)
+ if (eth_hdr(skb)->h_proto == cpu_to_be16(ETH_P_MRP) &&
+ cpuq & BIT(OCELOT_MRP_CPUQ))
+ skb->offload_fwd_mark = 0;
+#endif
+
/* Ocelot switches copy frames unmodified to the CPU. However, it is
* possible for the user to request a VLAN modification through
* VCAP_IS1_ACT_VID_REPLACE_ENA. In this case, what will happen is that