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net: dsa: resolve forwarding path for dsa slave ports

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Add .ndo_fill_forward_path for dsa slave port devices

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Felix Fietkau 2021-03-24 02:30:37 +01:00 committed by David S. Miller
parent f6efc675c9
commit 0994d492a1
2 changed files with 21 additions and 0 deletions
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5
include/linux/netdevice.h
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@ -853,6 +853,7 @@ enum net_device_path_type {
DEV_PATH_VLAN,
DEV_PATH_BRIDGE,
DEV_PATH_PPPOE,
DEV_PATH_DSA,
};
struct net_device_path {
@ -873,6 +874,10 @@ struct net_device_path {
u16 vlan_id;
__be16 vlan_proto;
} bridge;
struct {
int port;
u16 proto;
} dsa;
};
};

16
net/dsa/slave.c
View File

@ -1654,6 +1654,21 @@ static void dsa_slave_get_stats64(struct net_device *dev,
dev_get_tstats64(dev, s);
}
static int dsa_slave_fill_forward_path(struct net_device_path_ctx *ctx,
struct net_device_path *path)
{
struct dsa_port *dp = dsa_slave_to_port(ctx->dev);
struct dsa_port *cpu_dp = dp->cpu_dp;
path->dev = ctx->dev;
path->type = DEV_PATH_DSA;
path->dsa.proto = cpu_dp->tag_ops->proto;
path->dsa.port = dp->index;
ctx->dev = cpu_dp->master;
return 0;
}
static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_open = dsa_slave_open,
.ndo_stop = dsa_slave_close,
@ -1679,6 +1694,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid,
.ndo_get_devlink_port = dsa_slave_get_devlink_port,
.ndo_change_mtu = dsa_slave_change_mtu,
.ndo_fill_forward_path = dsa_slave_fill_forward_path,
};
static struct device_type dsa_type = {