[RFC PATCH net-next 3/6] net: dsa: Pass tc-taprio offload to drivers
From: Vladimir Oltean <olteanv@gmail.com>
Date: 2019-07-07 17:29:45
Subsystem:
networking [dsa], networking [general], the rest · Maintainers:
Andrew Lunn, Vladimir Oltean, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
tc-taprio is a qdisc based on the enhancements for scheduled traffic specified in IEEE 802.1Qbv (later merged in 802.1Q). This qdisc has a software implementation and an optional offload through which compatible Ethernet ports may configure their egress 802.1Qbv schedulers. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> --- include/net/dsa.h | 3 +++ net/dsa/slave.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+)
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 1e8650fa8acc..e7ee6ac8ce6b 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h@@ -152,6 +152,7 @@ struct dsa_mall_tc_entry { }; }; +struct tc_taprio_qopt_offload; struct dsa_port { /* A CPU port is physically connected to a master device.
@@ -516,6 +517,8 @@ struct dsa_switch_ops { bool ingress); void (*port_mirror_del)(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror); + int (*port_setup_taprio)(struct dsa_switch *ds, int port, + struct tc_taprio_qopt_offload *qopt); /* * Cross-chip operations
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 99673f6b07f6..2bae33788708 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c@@ -965,12 +965,26 @@ static int dsa_slave_setup_tc_block(struct net_device *dev, } } +static int dsa_slave_setup_tc_taprio(struct net_device *dev, + struct tc_taprio_qopt_offload *f) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; + + if (!ds->ops->port_setup_taprio) + return -EOPNOTSUPP; + + return ds->ops->port_setup_taprio(ds, dp->index, f); +} + static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) { switch (type) { case TC_SETUP_BLOCK: return dsa_slave_setup_tc_block(dev, type_data); + case TC_SETUP_QDISC_TAPRIO: + return dsa_slave_setup_tc_taprio(dev, type_data); default: return -EOPNOTSUPP; }
--
2.17.1