kernel: add linux 5.10 support

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 53 insertions, 0 deletions

diff --git a/target/linux/generic/pending-5.10/640-13-dsa-slave-add-support-for-TC_SETUP_FT.patch b/target/linux/generic/pending-5.10/640-13-dsa-slave-add-support-for-TC_SETUP_FT.patch
new file mode 100644
index 0000000000..58a2064c03
--- /dev/null
+++ b/target/linux/generic/pending-5.10/640-13-dsa-slave-add-support-for-TC_SETUP_FT.patch
@@ -0,0 +1,53 @@
+From: Pablo Neira Ayuso <pablo@netfilter.org>
+Date: Mon, 18 Jan 2021 22:39:17 +0100
+Subject: [PATCH] dsa: slave: add support for TC_SETUP_FT
+
+The dsa infrastructure provides a well-defined hierarchy of devices,
+pass up the call to set up the flow block to the master device. From the
+software dataplane, the netfilter infrastructure uses the dsa slave
+devices to refer to the input and output device for the given skbuff.
+Similarly, the flowtable definition in the ruleset refers to the dsa
+slave port devices.
+
+This patch adds the glue code to call ndo_setup_tc with TC_SETUP_FT
+with the master device via the dsa slave devices.
+
+Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
+---
+
+--- a/net/dsa/slave.c
++++ b/net/dsa/slave.c
+@@ -1202,14 +1202,32 @@ static int dsa_slave_setup_tc_block(stru
+ 	}
+ }
+ 
++static int dsa_slave_setup_ft_block(struct dsa_switch *ds, int port,
++				    void *type_data)
++{
++	struct dsa_port *cpu_dp = dsa_to_port(ds, port)->cpu_dp;
++	struct net_device *master = cpu_dp->master;
++
++	if (!master->netdev_ops->ndo_setup_tc)
++		return -EOPNOTSUPP;
++
++	return master->netdev_ops->ndo_setup_tc(master, TC_SETUP_FT, type_data);
++}
++
+ static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ 			      void *type_data)
+ {
+ 	struct dsa_port *dp = dsa_slave_to_port(dev);
+ 	struct dsa_switch *ds = dp->ds;
+ 
+-	if (type == TC_SETUP_BLOCK)
++	switch (type) {
++	case TC_SETUP_BLOCK:
+ 		return dsa_slave_setup_tc_block(dev, type_data);
++	case TC_SETUP_FT:
++		return dsa_slave_setup_ft_block(ds, dp->index, type_data);
++	default:
++		break;
++	}
+ 
+ 	if (!ds->ops->port_setup_tc)
+ 		return -EOPNOTSUPP;