diff options
| author | Brandon Streiff <brandon.streiff@ni.com> | 2018-02-14 03:07:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-14 22:33:37 +0300 |
| commit | 0336369d3a4d65c9332476b618ff3bb9b41045e1 (patch) | |
| tree | eae9faa3c3a54f4c24205f0891c62eb282426dd2 | |
| parent | 4eb3be2937670aecf8bbd52a95b6e9238a9bd7aa (diff) | |
| download | linux-0336369d3a4d65c9332476b618ff3bb9b41045e1.tar.xz | |
net: dsa: forward hardware timestamping ioctls to switch driver
This patch adds support to the dsa slave network device so that
switch drivers can implement the SIOC[GS]HWTSTAMP ioctls and the
ethtool timestamp-info interface.
Signed-off-by: Brandon Streiff <brandon.streiff@ni.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/dsa.h | 15 | ||||
| -rw-r--r-- | net/dsa/slave.c | 29 |
2 files changed, 44 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 6cb602dd970c..4c0df83dddaf 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -19,6 +19,7 @@ #include <linux/workqueue.h> #include <linux/of.h> #include <linux/ethtool.h> +#include <linux/net_tstamp.h> #include <net/devlink.h> #include <net/switchdev.h> @@ -368,6 +369,12 @@ struct dsa_switch_ops { struct ethtool_wolinfo *w); /* + * ethtool timestamp info + */ + int (*get_ts_info)(struct dsa_switch *ds, int port, + struct ethtool_ts_info *ts); + + /* * Suspend and resume */ int (*suspend)(struct dsa_switch *ds); @@ -469,6 +476,14 @@ struct dsa_switch_ops { int port, struct net_device *br); void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, int port, struct net_device *br); + + /* + * PTP functionality + */ + int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, + struct ifreq *ifr); + int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, + struct ifreq *ifr); }; struct dsa_switch_driver { diff --git a/net/dsa/slave.c b/net/dsa/slave.c index f52307296de4..935d93f0d36c 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -255,6 +255,22 @@ dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->dp->ds; + int port = p->dp->index; + + /* Pass through to switch driver if it supports timestamping */ + switch (cmd) { + case SIOCGHWTSTAMP: + if (ds->ops->port_hwtstamp_get) + return ds->ops->port_hwtstamp_get(ds, port, ifr); + break; + case SIOCSHWTSTAMP: + if (ds->ops->port_hwtstamp_set) + return ds->ops->port_hwtstamp_set(ds, port, ifr); + break; + } + if (!dev->phydev) return -ENODEV; @@ -918,6 +934,18 @@ static int dsa_slave_set_rxnfc(struct net_device *dev, return ds->ops->set_rxnfc(ds, dp->index, nfc); } +static int dsa_slave_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *ts) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->dp->ds; + + if (!ds->ops->get_ts_info) + return -EOPNOTSUPP; + + return ds->ops->get_ts_info(ds, p->dp->index, ts); +} + static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_drvinfo = dsa_slave_get_drvinfo, .get_regs_len = dsa_slave_get_regs_len, @@ -938,6 +966,7 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { .set_link_ksettings = phy_ethtool_set_link_ksettings, .get_rxnfc = dsa_slave_get_rxnfc, .set_rxnfc = dsa_slave_set_rxnfc, + .get_ts_info = dsa_slave_get_ts_info, }; /* legacy way, bypassing the bridge *****************************************/ |