From d945097bb19501bd95790d8220d4eeb418b6ebb2 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Mon, 16 Oct 2017 11:12:15 -0400 Subject: net: dsa: add slave to port helper Many portions of DSA core code require to get the dsa_port structure corresponding to a slave net_device. For this purpose, introduce a dsa_slave_to_port() helper. Signed-off-by: Vivien Didelot Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- net/dsa/slave.c | 167 ++++++++++++++++++++++++++++---------------------------- 1 file changed, 82 insertions(+), 85 deletions(-) (limited to 'net/dsa/slave.c') diff --git a/net/dsa/slave.c b/net/dsa/slave.c index f31737256f69..894602c88b09 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -72,8 +72,8 @@ static int dsa_slave_get_iflink(const struct net_device *dev) static int dsa_slave_open(struct net_device *dev) { struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; struct net_device *master = dsa_master_netdev(p); + struct dsa_port *dp = dsa_slave_to_port(dev); int err; if (!(master->flags & IFF_UP)) @@ -122,7 +122,7 @@ static int dsa_slave_close(struct net_device *dev) { struct dsa_slave_priv *p = netdev_priv(dev); struct net_device *master = dsa_master_netdev(p); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); if (dev->phydev) phy_stop(dev->phydev); @@ -246,14 +246,13 @@ dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int *idx) { + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_slave_dump_ctx dump = { .dev = dev, .skb = skb, .cb = cb, .idx = *idx, }; - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; int err; err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); @@ -274,8 +273,7 @@ static int dsa_slave_port_attr_set(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); int ret; switch (attr->id) { @@ -301,8 +299,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const struct switchdev_obj *obj, struct switchdev_trans *trans) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); int err; /* For the prepare phase, ensure the full set of changes is feasable in @@ -329,8 +326,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev, static int dsa_slave_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); int err; switch (obj->id) { @@ -351,8 +347,8 @@ static int dsa_slave_port_obj_del(struct net_device *dev, static int dsa_slave_port_attr_get(struct net_device *dev, struct switchdev_attr *attr) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; switch (attr->id) { case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: @@ -431,11 +427,11 @@ static void dsa_slave_get_drvinfo(struct net_device *dev, static int dsa_slave_get_regs_len(struct net_device *dev) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->ops->get_regs_len) - return ds->ops->get_regs_len(ds, p->dp->index); + return ds->ops->get_regs_len(ds, dp->index); return -EOPNOTSUPP; } @@ -443,11 +439,11 @@ static int dsa_slave_get_regs_len(struct net_device *dev) static void dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->ops->get_regs) - ds->ops->get_regs(ds, p->dp->index, regs, _p); + ds->ops->get_regs(ds, dp->index, regs, _p); } static u32 dsa_slave_get_link(struct net_device *dev) @@ -462,8 +458,8 @@ static u32 dsa_slave_get_link(struct net_device *dev) static int dsa_slave_get_eeprom_len(struct net_device *dev) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->cd && ds->cd->eeprom_len) return ds->cd->eeprom_len; @@ -477,8 +473,8 @@ static int dsa_slave_get_eeprom_len(struct net_device *dev) static int dsa_slave_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->ops->get_eeprom) return ds->ops->get_eeprom(ds, eeprom, data); @@ -489,8 +485,8 @@ static int dsa_slave_get_eeprom(struct net_device *dev, static int dsa_slave_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->ops->set_eeprom) return ds->ops->set_eeprom(ds, eeprom, data); @@ -501,8 +497,8 @@ static int dsa_slave_set_eeprom(struct net_device *dev, static void dsa_slave_get_strings(struct net_device *dev, uint32_t stringset, uint8_t *data) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (stringset == ETH_SS_STATS) { int len = ETH_GSTRING_LEN; @@ -512,7 +508,7 @@ static void dsa_slave_get_strings(struct net_device *dev, strncpy(data + 2 * len, "rx_packets", len); strncpy(data + 3 * len, "rx_bytes", len); if (ds->ops->get_strings) - ds->ops->get_strings(ds, p->dp->index, data + 4 * len); + ds->ops->get_strings(ds, dp->index, data + 4 * len); } } @@ -520,8 +516,9 @@ static void dsa_slave_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, uint64_t *data) { + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_switch *ds = dp->ds; struct pcpu_sw_netstats *s; unsigned int start; int i; @@ -543,13 +540,13 @@ static void dsa_slave_get_ethtool_stats(struct net_device *dev, data[3] += rx_bytes; } if (ds->ops->get_ethtool_stats) - ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); + ds->ops->get_ethtool_stats(ds, dp->index, data + 4); } static int dsa_slave_get_sset_count(struct net_device *dev, int sset) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (sset == ETH_SS_STATS) { int count; @@ -566,29 +563,29 @@ static int dsa_slave_get_sset_count(struct net_device *dev, int sset) static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (ds->ops->get_wol) - ds->ops->get_wol(ds, p->dp->index, w); + ds->ops->get_wol(ds, dp->index, w); } static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; int ret = -EOPNOTSUPP; if (ds->ops->set_wol) - ret = ds->ops->set_wol(ds, p->dp->index, w); + ret = ds->ops->set_wol(ds, dp->index, w); return ret; } static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; int ret; /* Port's PHY and MAC both need to be EEE capable */ @@ -598,7 +595,7 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) if (!ds->ops->set_mac_eee) return -EOPNOTSUPP; - ret = ds->ops->set_mac_eee(ds, p->dp->index, e); + ret = ds->ops->set_mac_eee(ds, dp->index, e); if (ret) return ret; @@ -613,8 +610,8 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; int ret; /* Port's PHY and MAC both need to be EEE capable */ @@ -624,7 +621,7 @@ static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) if (!ds->ops->get_mac_eee) return -EOPNOTSUPP; - ret = ds->ops->get_mac_eee(ds, p->dp->index, e); + ret = ds->ops->get_mac_eee(ds, dp->index, e); if (ret) return ret; @@ -676,9 +673,9 @@ static void dsa_slave_poll_controller(struct net_device *dev) static int dsa_slave_get_phys_port_name(struct net_device *dev, char *name, size_t len) { - struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = dsa_slave_to_port(dev); - if (snprintf(name, len, "p%d", p->dp->index) >= len) + if (snprintf(name, len, "p%d", dp->index) >= len) return -EINVAL; return 0; @@ -701,14 +698,15 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, struct tc_cls_matchall_offload *cls, bool ingress) { + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_slave_priv *p = netdev_priv(dev); struct dsa_mall_tc_entry *mall_tc_entry; __be16 protocol = cls->common.protocol; - struct dsa_switch *ds = p->dp->ds; struct net *net = dev_net(dev); - struct dsa_slave_priv *to_p; + struct dsa_switch *ds = dp->ds; struct net_device *to_dev; const struct tc_action *a; + struct dsa_port *to_dp; int err = -EOPNOTSUPP; LIST_HEAD(actions); int ifindex; @@ -741,13 +739,12 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, mall_tc_entry->type = DSA_PORT_MALL_MIRROR; mirror = &mall_tc_entry->mirror; - to_p = netdev_priv(to_dev); + to_dp = dsa_slave_to_port(to_dev); - mirror->to_local_port = to_p->dp->index; + mirror->to_local_port = to_dp->index; mirror->ingress = ingress; - err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, - ingress); + err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); if (err) { kfree(mall_tc_entry); return err; @@ -762,9 +759,9 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, static void dsa_slave_del_cls_matchall(struct net_device *dev, struct tc_cls_matchall_offload *cls) { - struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_mall_tc_entry *mall_tc_entry; - struct dsa_switch *ds = p->dp->ds; + struct dsa_switch *ds = dp->ds; if (!ds->ops->port_mirror_del) return; @@ -777,8 +774,7 @@ static void dsa_slave_del_cls_matchall(struct net_device *dev, switch (mall_tc_entry->type) { case DSA_PORT_MALL_MIRROR: - ds->ops->port_mirror_del(ds, p->dp->index, - &mall_tc_entry->mirror); + ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); break; default: WARN_ON(1); @@ -855,25 +851,25 @@ static void dsa_slave_get_stats64(struct net_device *dev, static int dsa_slave_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc, u32 *rule_locs) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (!ds->ops->get_rxnfc) return -EOPNOTSUPP; - return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); + return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); } static int dsa_slave_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; if (!ds->ops->set_rxnfc) return -EOPNOTSUPP; - return ds->ops->set_rxnfc(ds, p->dp->index, nfc); + return ds->ops->set_rxnfc(ds, dp->index, nfc); } static const struct ethtool_ops dsa_slave_ethtool_ops = { @@ -933,8 +929,9 @@ static struct device_type dsa_type = { static void dsa_slave_adjust_link(struct net_device *dev) { + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_switch *ds = dp->ds; unsigned int status_changed = 0; if (p->old_link != dev->phydev->link) { @@ -953,7 +950,7 @@ static void dsa_slave_adjust_link(struct net_device *dev) } if (ds->ops->adjust_link && status_changed) - ds->ops->adjust_link(ds, p->dp->index, dev->phydev); + ds->ops->adjust_link(ds, dp->index, dev->phydev); if (status_changed) phy_print_status(dev->phydev); @@ -962,14 +959,14 @@ static void dsa_slave_adjust_link(struct net_device *dev) static int dsa_slave_fixed_link_update(struct net_device *dev, struct fixed_phy_status *status) { - struct dsa_slave_priv *p; struct dsa_switch *ds; + struct dsa_port *dp; if (dev) { - p = netdev_priv(dev); - ds = p->dp->ds; + dp = dsa_slave_to_port(dev); + ds = dp->ds; if (ds->ops->fixed_link_update) - ds->ops->fixed_link_update(ds, p->dp->index, status); + ds->ops->fixed_link_update(ds, dp->index, status); } return 0; @@ -978,8 +975,9 @@ static int dsa_slave_fixed_link_update(struct net_device *dev, /* slave device setup *******************************************************/ static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) { + struct dsa_port *dp = dsa_slave_to_port(slave_dev); struct dsa_slave_priv *p = netdev_priv(slave_dev); - struct dsa_switch *ds = p->dp->ds; + struct dsa_switch *ds = dp->ds; slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); if (!slave_dev->phydev) { @@ -997,14 +995,15 @@ static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) static int dsa_slave_phy_setup(struct net_device *slave_dev) { + struct dsa_port *dp = dsa_slave_to_port(slave_dev); struct dsa_slave_priv *p = netdev_priv(slave_dev); - struct dsa_switch *ds = p->dp->ds; - struct device_node *phy_dn, *port_dn; + struct device_node *port_dn = dp->dn; + struct dsa_switch *ds = dp->ds; + struct device_node *phy_dn; bool phy_is_fixed = false; u32 phy_flags = 0; int mode, ret; - port_dn = p->dp->dn; mode = of_get_phy_mode(port_dn); if (mode < 0) mode = PHY_INTERFACE_MODE_NA; @@ -1025,7 +1024,7 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev) } if (ds->ops->get_phy_flags) - phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); + phy_flags = ds->ops->get_phy_flags(ds, dp->index); if (phy_dn) { int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); @@ -1061,10 +1060,10 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev) * MDIO bus instead */ if (!slave_dev->phydev) { - ret = dsa_slave_phy_connect(slave_dev, p->dp->index); + ret = dsa_slave_phy_connect(slave_dev, dp->index); if (ret) { netdev_err(slave_dev, "failed to connect to port %d: %d\n", - p->dp->index, ret); + dp->index, ret); if (phy_is_fixed) of_phy_deregister_fixed_link(port_dn); return ret; @@ -1118,7 +1117,7 @@ static void dsa_slave_notify(struct net_device *dev, unsigned long val) { struct dsa_slave_priv *p = netdev_priv(dev); struct net_device *master = dsa_master_netdev(p); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_notifier_register_info rinfo = { .switch_number = dp->ds->index, .port_number = dp->index, @@ -1202,8 +1201,8 @@ int dsa_slave_create(struct dsa_port *port, const char *name) out_phy: phy_disconnect(slave_dev->phydev); - if (of_phy_is_fixed_link(p->dp->dn)) - of_phy_deregister_fixed_link(p->dp->dn); + if (of_phy_is_fixed_link(port->dn)) + of_phy_deregister_fixed_link(port->dn); out_free: free_percpu(p->stats64); free_netdev(slave_dev); @@ -1213,10 +1212,9 @@ out_free: void dsa_slave_destroy(struct net_device *slave_dev) { + struct dsa_port *dp = dsa_slave_to_port(slave_dev); struct dsa_slave_priv *p = netdev_priv(slave_dev); - struct device_node *port_dn; - - port_dn = p->dp->dn; + struct device_node *port_dn = dp->dn; netif_carrier_off(slave_dev); if (slave_dev->phydev) { @@ -1239,8 +1237,7 @@ static bool dsa_slave_dev_check(struct net_device *dev) static int dsa_slave_changeupper(struct net_device *dev, struct netdev_notifier_changeupper_info *info) { - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; + struct dsa_port *dp = dsa_slave_to_port(dev); int err = NOTIFY_DONE; if (netif_is_bridge_master(info->upper_dev)) { @@ -1283,14 +1280,14 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work) container_of(work, struct dsa_switchdev_event_work, work); struct net_device *dev = switchdev_work->dev; struct switchdev_notifier_fdb_info *fdb_info; - struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = dsa_slave_to_port(dev); int err; rtnl_lock(); switch (switchdev_work->event) { case SWITCHDEV_FDB_ADD_TO_DEVICE: fdb_info = &switchdev_work->fdb_info; - err = dsa_port_fdb_add(p->dp, fdb_info->addr, fdb_info->vid); + err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); if (err) { netdev_dbg(dev, "fdb add failed err=%d\n", err); break; @@ -1301,7 +1298,7 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work) case SWITCHDEV_FDB_DEL_TO_DEVICE: fdb_info = &switchdev_work->fdb_info; - err = dsa_port_fdb_del(p->dp, fdb_info->addr, fdb_info->vid); + err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); if (err) { netdev_dbg(dev, "fdb del failed err=%d\n", err); dev_close(dev); -- cgit