this patch adds the core-functionality of multiple cpu-ports currently it uses definition in dts to make connection between cpu and user-port
based on https://github.com/openwrt/openwrt/blob/master/target/linux/mediatek/patches-4.14/0033-dsa-multi-cpu.patch Signed-off-by: Frank Wunderlich <fran...@public-files.de> --- net/dsa/dsa2.c | 18 ++++++++++++++++++ net/dsa/slave.c | 3 ++- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index b7c6da2f1f08..8f64535fd2a0 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -303,6 +303,8 @@ static int dsa_port_setup(struct dsa_port *dp) ds->index, dp->index); return err; } + if (dp->master) + dp->master->dsa_ptr = dp; break; case DSA_PORT_TYPE_DSA: /* dp->index is used now as port_number. However @@ -323,12 +325,17 @@ static int dsa_port_setup(struct dsa_port *dp) devlink_port_attrs_set(&dp->devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL, dp->index, false, 0); + err = dsa_user_parse(dp, dp->index, ds); + if (err) + return err; + err = dsa_slave_create(dp); if (err) dev_err(ds->dev, "failed to create slave for port %d.%d\n", ds->index, dp->index); else devlink_port_type_eth_set(&dp->devlink_port, dp->slave); + break; } @@ -344,6 +351,14 @@ static void dsa_port_teardown(struct dsa_port *dp) case DSA_PORT_TYPE_UNUSED: break; case DSA_PORT_TYPE_CPU: + dsa_port_link_unregister_of(dp); + if (dp->master) + dp->master->dsa_ptr = NULL; + if (dp->ethernet) { + dev_put(dp->ethernet); + dp->ethernet = NULL; + } + break; case DSA_PORT_TYPE_DSA: dsa_port_link_unregister_of(dp); break; @@ -598,6 +613,9 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master) dp->master = master; dp->dst = dst; + dev_hold(master); + ds->ports[dp->index].ethernet = master; + return 0; } diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 7d0c19e7edcf..f0fdb9e5d05f 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1312,11 +1312,11 @@ static void dsa_slave_notify(struct net_device *dev, unsigned long val) int dsa_slave_create(struct dsa_port *port) { const struct dsa_port *cpu_dp = port->cpu_dp; - struct net_device *master = cpu_dp->master; struct dsa_switch *ds = port->ds; const char *name = port->name; struct net_device *slave_dev; struct dsa_slave_priv *p; + struct net_device *master = ds->ports[port->upstream].ethernet; int ret; if (!ds->num_tx_queues) @@ -1355,6 +1355,7 @@ int dsa_slave_create(struct dsa_port *port) p->dp = port; INIT_LIST_HEAD(&p->mall_tc_list); p->xmit = cpu_dp->tag_ops->xmit; + p->master = master; port->slave = slave_dev; netif_carrier_off(slave_dev); -- 2.17.1
