2088 lines
50 KiB
C
2088 lines
50 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Handling of a single switch port
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*
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* Copyright (c) 2017 Savoir-faire Linux Inc.
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* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
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*/
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#include <linux/if_bridge.h>
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#include <linux/netdevice.h>
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#include <linux/notifier.h>
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#include <linux/of_mdio.h>
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#include <linux/of_net.h>
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#include "dsa.h"
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#include "port.h"
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#include "slave.h"
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#include "switch.h"
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#include "tag_8021q.h"
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/**
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* dsa_port_notify - Notify the switching fabric of changes to a port
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* @dp: port on which change occurred
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* @e: event, must be of type DSA_NOTIFIER_*
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* @v: event-specific value.
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*
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* Notify all switches in the DSA tree that this port's switch belongs to,
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* including this switch itself, of an event. Allows the other switches to
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* reconfigure themselves for cross-chip operations. Can also be used to
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* reconfigure ports without net_devices (CPU ports, DSA links) whenever
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* a user port's state changes.
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*/
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static int dsa_port_notify(const struct dsa_port *dp, unsigned long e, void *v)
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{
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return dsa_tree_notify(dp->ds->dst, e, v);
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}
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static void dsa_port_notify_bridge_fdb_flush(const struct dsa_port *dp, u16 vid)
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{
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struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
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struct switchdev_notifier_fdb_info info = {
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.vid = vid,
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};
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/* When the port becomes standalone it has already left the bridge.
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* Don't notify the bridge in that case.
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*/
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if (!brport_dev)
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return;
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call_switchdev_notifiers(SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
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brport_dev, &info.info, NULL);
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}
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static void dsa_port_fast_age(const struct dsa_port *dp)
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{
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struct dsa_switch *ds = dp->ds;
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if (!ds->ops->port_fast_age)
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return;
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ds->ops->port_fast_age(ds, dp->index);
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/* flush all VLANs */
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dsa_port_notify_bridge_fdb_flush(dp, 0);
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}
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static int dsa_port_vlan_fast_age(const struct dsa_port *dp, u16 vid)
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{
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struct dsa_switch *ds = dp->ds;
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int err;
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if (!ds->ops->port_vlan_fast_age)
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return -EOPNOTSUPP;
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err = ds->ops->port_vlan_fast_age(ds, dp->index, vid);
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if (!err)
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dsa_port_notify_bridge_fdb_flush(dp, vid);
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return err;
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}
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static int dsa_port_msti_fast_age(const struct dsa_port *dp, u16 msti)
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{
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DECLARE_BITMAP(vids, VLAN_N_VID) = { 0 };
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int err, vid;
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err = br_mst_get_info(dsa_port_bridge_dev_get(dp), msti, vids);
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if (err)
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return err;
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for_each_set_bit(vid, vids, VLAN_N_VID) {
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err = dsa_port_vlan_fast_age(dp, vid);
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if (err)
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return err;
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}
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return 0;
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}
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static bool dsa_port_can_configure_learning(struct dsa_port *dp)
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{
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struct switchdev_brport_flags flags = {
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.mask = BR_LEARNING,
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};
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struct dsa_switch *ds = dp->ds;
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int err;
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if (!ds->ops->port_bridge_flags || !ds->ops->port_pre_bridge_flags)
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return false;
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err = ds->ops->port_pre_bridge_flags(ds, dp->index, flags, NULL);
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return !err;
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}
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bool dsa_port_supports_hwtstamp(struct dsa_port *dp)
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{
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struct dsa_switch *ds = dp->ds;
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struct ifreq ifr = {};
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int err;
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if (!ds->ops->port_hwtstamp_get || !ds->ops->port_hwtstamp_set)
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return false;
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/* "See through" shim implementations of the "get" method.
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* Since we can't cook up a complete ioctl request structure, this will
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* fail in copy_to_user() with -EFAULT, which hopefully is enough to
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* detect a valid implementation.
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*/
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err = ds->ops->port_hwtstamp_get(ds, dp->index, &ifr);
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return err != -EOPNOTSUPP;
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}
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int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age)
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{
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struct dsa_switch *ds = dp->ds;
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int port = dp->index;
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if (!ds->ops->port_stp_state_set)
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return -EOPNOTSUPP;
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ds->ops->port_stp_state_set(ds, port, state);
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if (!dsa_port_can_configure_learning(dp) ||
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(do_fast_age && dp->learning)) {
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/* Fast age FDB entries or flush appropriate forwarding database
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* for the given port, if we are moving it from Learning or
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* Forwarding state, to Disabled or Blocking or Listening state.
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* Ports that were standalone before the STP state change don't
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* need to fast age the FDB, since address learning is off in
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* standalone mode.
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*/
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if ((dp->stp_state == BR_STATE_LEARNING ||
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dp->stp_state == BR_STATE_FORWARDING) &&
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(state == BR_STATE_DISABLED ||
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state == BR_STATE_BLOCKING ||
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state == BR_STATE_LISTENING))
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dsa_port_fast_age(dp);
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}
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dp->stp_state = state;
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return 0;
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}
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static void dsa_port_set_state_now(struct dsa_port *dp, u8 state,
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bool do_fast_age)
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{
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struct dsa_switch *ds = dp->ds;
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int err;
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err = dsa_port_set_state(dp, state, do_fast_age);
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if (err && err != -EOPNOTSUPP) {
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dev_err(ds->dev, "port %d failed to set STP state %u: %pe\n",
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dp->index, state, ERR_PTR(err));
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}
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}
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int dsa_port_set_mst_state(struct dsa_port *dp,
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const struct switchdev_mst_state *state,
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struct netlink_ext_ack *extack)
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{
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struct dsa_switch *ds = dp->ds;
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u8 prev_state;
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int err;
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if (!ds->ops->port_mst_state_set)
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return -EOPNOTSUPP;
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err = br_mst_get_state(dsa_port_to_bridge_port(dp), state->msti,
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&prev_state);
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if (err)
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return err;
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err = ds->ops->port_mst_state_set(ds, dp->index, state);
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if (err)
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return err;
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if (!(dp->learning &&
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(prev_state == BR_STATE_LEARNING ||
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prev_state == BR_STATE_FORWARDING) &&
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(state->state == BR_STATE_DISABLED ||
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state->state == BR_STATE_BLOCKING ||
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state->state == BR_STATE_LISTENING)))
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return 0;
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err = dsa_port_msti_fast_age(dp, state->msti);
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if (err)
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NL_SET_ERR_MSG_MOD(extack,
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"Unable to flush associated VLANs");
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return 0;
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}
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int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy)
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{
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struct dsa_switch *ds = dp->ds;
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int port = dp->index;
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int err;
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if (ds->ops->port_enable) {
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err = ds->ops->port_enable(ds, port, phy);
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if (err)
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return err;
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}
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if (!dp->bridge)
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dsa_port_set_state_now(dp, BR_STATE_FORWARDING, false);
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if (dp->pl)
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phylink_start(dp->pl);
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return 0;
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}
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int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy)
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{
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int err;
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rtnl_lock();
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err = dsa_port_enable_rt(dp, phy);
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rtnl_unlock();
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return err;
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}
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void dsa_port_disable_rt(struct dsa_port *dp)
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{
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struct dsa_switch *ds = dp->ds;
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int port = dp->index;
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if (dp->pl)
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phylink_stop(dp->pl);
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if (!dp->bridge)
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dsa_port_set_state_now(dp, BR_STATE_DISABLED, false);
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if (ds->ops->port_disable)
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ds->ops->port_disable(ds, port);
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}
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void dsa_port_disable(struct dsa_port *dp)
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{
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rtnl_lock();
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dsa_port_disable_rt(dp);
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rtnl_unlock();
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}
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static void dsa_port_reset_vlan_filtering(struct dsa_port *dp,
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struct dsa_bridge bridge)
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{
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struct netlink_ext_ack extack = {0};
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bool change_vlan_filtering = false;
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struct dsa_switch *ds = dp->ds;
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struct dsa_port *other_dp;
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bool vlan_filtering;
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int err;
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if (ds->needs_standalone_vlan_filtering &&
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!br_vlan_enabled(bridge.dev)) {
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change_vlan_filtering = true;
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vlan_filtering = true;
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} else if (!ds->needs_standalone_vlan_filtering &&
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br_vlan_enabled(bridge.dev)) {
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change_vlan_filtering = true;
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vlan_filtering = false;
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}
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/* If the bridge was vlan_filtering, the bridge core doesn't trigger an
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* event for changing vlan_filtering setting upon slave ports leaving
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* it. That is a good thing, because that lets us handle it and also
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* handle the case where the switch's vlan_filtering setting is global
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* (not per port). When that happens, the correct moment to trigger the
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* vlan_filtering callback is only when the last port leaves the last
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* VLAN-aware bridge.
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*/
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if (change_vlan_filtering && ds->vlan_filtering_is_global) {
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dsa_switch_for_each_port(other_dp, ds) {
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struct net_device *br = dsa_port_bridge_dev_get(other_dp);
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if (br && br_vlan_enabled(br)) {
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change_vlan_filtering = false;
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break;
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}
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}
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}
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if (!change_vlan_filtering)
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return;
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err = dsa_port_vlan_filtering(dp, vlan_filtering, &extack);
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if (extack._msg) {
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dev_err(ds->dev, "port %d: %s\n", dp->index,
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extack._msg);
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}
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if (err && err != -EOPNOTSUPP) {
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dev_err(ds->dev,
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"port %d failed to reset VLAN filtering to %d: %pe\n",
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dp->index, vlan_filtering, ERR_PTR(err));
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}
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}
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static int dsa_port_inherit_brport_flags(struct dsa_port *dp,
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struct netlink_ext_ack *extack)
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{
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const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
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BR_BCAST_FLOOD | BR_PORT_LOCKED;
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struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
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int flag, err;
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for_each_set_bit(flag, &mask, 32) {
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struct switchdev_brport_flags flags = {0};
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flags.mask = BIT(flag);
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if (br_port_flag_is_set(brport_dev, BIT(flag)))
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flags.val = BIT(flag);
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err = dsa_port_bridge_flags(dp, flags, extack);
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if (err && err != -EOPNOTSUPP)
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return err;
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}
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return 0;
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}
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static void dsa_port_clear_brport_flags(struct dsa_port *dp)
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{
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const unsigned long val = BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
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const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
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BR_BCAST_FLOOD | BR_PORT_LOCKED;
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int flag, err;
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for_each_set_bit(flag, &mask, 32) {
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struct switchdev_brport_flags flags = {0};
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flags.mask = BIT(flag);
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flags.val = val & BIT(flag);
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err = dsa_port_bridge_flags(dp, flags, NULL);
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if (err && err != -EOPNOTSUPP)
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dev_err(dp->ds->dev,
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"failed to clear bridge port flag %lu: %pe\n",
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flags.val, ERR_PTR(err));
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}
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}
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static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp,
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struct netlink_ext_ack *extack)
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{
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struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
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struct net_device *br = dsa_port_bridge_dev_get(dp);
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int err;
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err = dsa_port_inherit_brport_flags(dp, extack);
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if (err)
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return err;
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err = dsa_port_set_state(dp, br_port_get_stp_state(brport_dev), false);
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if (err && err != -EOPNOTSUPP)
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return err;
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err = dsa_port_vlan_filtering(dp, br_vlan_enabled(br), extack);
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if (err && err != -EOPNOTSUPP)
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return err;
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err = dsa_port_ageing_time(dp, br_get_ageing_time(br));
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if (err && err != -EOPNOTSUPP)
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return err;
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return 0;
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}
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static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp,
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struct dsa_bridge bridge)
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{
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/* Configure the port for standalone mode (no address learning,
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* flood everything).
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* The bridge only emits SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS events
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* when the user requests it through netlink or sysfs, but not
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* automatically at port join or leave, so we need to handle resetting
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* the brport flags ourselves. But we even prefer it that way, because
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* otherwise, some setups might never get the notification they need,
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* for example, when a port leaves a LAG that offloads the bridge,
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* it becomes standalone, but as far as the bridge is concerned, no
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* port ever left.
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*/
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dsa_port_clear_brport_flags(dp);
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/* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer,
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* so allow it to be in BR_STATE_FORWARDING to be kept functional
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*/
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dsa_port_set_state_now(dp, BR_STATE_FORWARDING, true);
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dsa_port_reset_vlan_filtering(dp, bridge);
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/* Ageing time may be global to the switch chip, so don't change it
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* here because we have no good reason (or value) to change it to.
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*/
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}
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static int dsa_port_bridge_create(struct dsa_port *dp,
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struct net_device *br,
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struct netlink_ext_ack *extack)
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{
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struct dsa_switch *ds = dp->ds;
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struct dsa_bridge *bridge;
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bridge = dsa_tree_bridge_find(ds->dst, br);
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if (bridge) {
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refcount_inc(&bridge->refcount);
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dp->bridge = bridge;
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return 0;
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}
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bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
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if (!bridge)
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return -ENOMEM;
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refcount_set(&bridge->refcount, 1);
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bridge->dev = br;
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bridge->num = dsa_bridge_num_get(br, ds->max_num_bridges);
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if (ds->max_num_bridges && !bridge->num) {
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NL_SET_ERR_MSG_MOD(extack,
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"Range of offloadable bridges exceeded");
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kfree(bridge);
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return -EOPNOTSUPP;
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}
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dp->bridge = bridge;
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return 0;
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}
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static void dsa_port_bridge_destroy(struct dsa_port *dp,
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const struct net_device *br)
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{
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struct dsa_bridge *bridge = dp->bridge;
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dp->bridge = NULL;
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if (!refcount_dec_and_test(&bridge->refcount))
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return;
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if (bridge->num)
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dsa_bridge_num_put(br, bridge->num);
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kfree(bridge);
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}
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static bool dsa_port_supports_mst(struct dsa_port *dp)
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{
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struct dsa_switch *ds = dp->ds;
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return ds->ops->vlan_msti_set &&
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ds->ops->port_mst_state_set &&
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ds->ops->port_vlan_fast_age &&
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dsa_port_can_configure_learning(dp);
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}
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int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
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struct netlink_ext_ack *extack)
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{
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struct dsa_notifier_bridge_info info = {
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.dp = dp,
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.extack = extack,
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};
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struct net_device *dev = dp->slave;
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struct net_device *brport_dev;
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int err;
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if (br_mst_enabled(br) && !dsa_port_supports_mst(dp))
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return -EOPNOTSUPP;
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/* Here the interface is already bridged. Reflect the current
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* configuration so that drivers can program their chips accordingly.
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*/
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err = dsa_port_bridge_create(dp, br, extack);
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if (err)
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return err;
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brport_dev = dsa_port_to_bridge_port(dp);
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info.bridge = *dp->bridge;
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err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info);
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if (err)
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goto out_rollback;
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/* Drivers which support bridge TX forwarding should set this */
|
|
dp->bridge->tx_fwd_offload = info.tx_fwd_offload;
|
|
|
|
err = switchdev_bridge_port_offload(brport_dev, dev, dp,
|
|
&dsa_slave_switchdev_notifier,
|
|
&dsa_slave_switchdev_blocking_notifier,
|
|
dp->bridge->tx_fwd_offload, extack);
|
|
if (err)
|
|
goto out_rollback_unbridge;
|
|
|
|
err = dsa_port_switchdev_sync_attrs(dp, extack);
|
|
if (err)
|
|
goto out_rollback_unoffload;
|
|
|
|
return 0;
|
|
|
|
out_rollback_unoffload:
|
|
switchdev_bridge_port_unoffload(brport_dev, dp,
|
|
&dsa_slave_switchdev_notifier,
|
|
&dsa_slave_switchdev_blocking_notifier);
|
|
dsa_flush_workqueue();
|
|
out_rollback_unbridge:
|
|
dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info);
|
|
out_rollback:
|
|
dsa_port_bridge_destroy(dp, br);
|
|
return err;
|
|
}
|
|
|
|
void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br)
|
|
{
|
|
struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
|
|
|
|
/* Don't try to unoffload something that is not offloaded */
|
|
if (!brport_dev)
|
|
return;
|
|
|
|
switchdev_bridge_port_unoffload(brport_dev, dp,
|
|
&dsa_slave_switchdev_notifier,
|
|
&dsa_slave_switchdev_blocking_notifier);
|
|
|
|
dsa_flush_workqueue();
|
|
}
|
|
|
|
void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br)
|
|
{
|
|
struct dsa_notifier_bridge_info info = {
|
|
.dp = dp,
|
|
};
|
|
int err;
|
|
|
|
/* If the port could not be offloaded to begin with, then
|
|
* there is nothing to do.
|
|
*/
|
|
if (!dp->bridge)
|
|
return;
|
|
|
|
info.bridge = *dp->bridge;
|
|
|
|
/* Here the port is already unbridged. Reflect the current configuration
|
|
* so that drivers can program their chips accordingly.
|
|
*/
|
|
dsa_port_bridge_destroy(dp, br);
|
|
|
|
err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info);
|
|
if (err)
|
|
dev_err(dp->ds->dev,
|
|
"port %d failed to notify DSA_NOTIFIER_BRIDGE_LEAVE: %pe\n",
|
|
dp->index, ERR_PTR(err));
|
|
|
|
dsa_port_switchdev_unsync_attrs(dp, info.bridge);
|
|
}
|
|
|
|
int dsa_port_lag_change(struct dsa_port *dp,
|
|
struct netdev_lag_lower_state_info *linfo)
|
|
{
|
|
struct dsa_notifier_lag_info info = {
|
|
.dp = dp,
|
|
};
|
|
bool tx_enabled;
|
|
|
|
if (!dp->lag)
|
|
return 0;
|
|
|
|
/* On statically configured aggregates (e.g. loadbalance
|
|
* without LACP) ports will always be tx_enabled, even if the
|
|
* link is down. Thus we require both link_up and tx_enabled
|
|
* in order to include it in the tx set.
|
|
*/
|
|
tx_enabled = linfo->link_up && linfo->tx_enabled;
|
|
|
|
if (tx_enabled == dp->lag_tx_enabled)
|
|
return 0;
|
|
|
|
dp->lag_tx_enabled = tx_enabled;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info);
|
|
}
|
|
|
|
static int dsa_port_lag_create(struct dsa_port *dp,
|
|
struct net_device *lag_dev)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
struct dsa_lag *lag;
|
|
|
|
lag = dsa_tree_lag_find(ds->dst, lag_dev);
|
|
if (lag) {
|
|
refcount_inc(&lag->refcount);
|
|
dp->lag = lag;
|
|
return 0;
|
|
}
|
|
|
|
lag = kzalloc(sizeof(*lag), GFP_KERNEL);
|
|
if (!lag)
|
|
return -ENOMEM;
|
|
|
|
refcount_set(&lag->refcount, 1);
|
|
mutex_init(&lag->fdb_lock);
|
|
INIT_LIST_HEAD(&lag->fdbs);
|
|
lag->dev = lag_dev;
|
|
dsa_lag_map(ds->dst, lag);
|
|
dp->lag = lag;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void dsa_port_lag_destroy(struct dsa_port *dp)
|
|
{
|
|
struct dsa_lag *lag = dp->lag;
|
|
|
|
dp->lag = NULL;
|
|
dp->lag_tx_enabled = false;
|
|
|
|
if (!refcount_dec_and_test(&lag->refcount))
|
|
return;
|
|
|
|
WARN_ON(!list_empty(&lag->fdbs));
|
|
dsa_lag_unmap(dp->ds->dst, lag);
|
|
kfree(lag);
|
|
}
|
|
|
|
int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev,
|
|
struct netdev_lag_upper_info *uinfo,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct dsa_notifier_lag_info info = {
|
|
.dp = dp,
|
|
.info = uinfo,
|
|
.extack = extack,
|
|
};
|
|
struct net_device *bridge_dev;
|
|
int err;
|
|
|
|
err = dsa_port_lag_create(dp, lag_dev);
|
|
if (err)
|
|
goto err_lag_create;
|
|
|
|
info.lag = *dp->lag;
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info);
|
|
if (err)
|
|
goto err_lag_join;
|
|
|
|
bridge_dev = netdev_master_upper_dev_get(lag_dev);
|
|
if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
|
|
return 0;
|
|
|
|
err = dsa_port_bridge_join(dp, bridge_dev, extack);
|
|
if (err)
|
|
goto err_bridge_join;
|
|
|
|
return 0;
|
|
|
|
err_bridge_join:
|
|
dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info);
|
|
err_lag_join:
|
|
dsa_port_lag_destroy(dp);
|
|
err_lag_create:
|
|
return err;
|
|
}
|
|
|
|
void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag_dev)
|
|
{
|
|
struct net_device *br = dsa_port_bridge_dev_get(dp);
|
|
|
|
if (br)
|
|
dsa_port_pre_bridge_leave(dp, br);
|
|
}
|
|
|
|
void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev)
|
|
{
|
|
struct net_device *br = dsa_port_bridge_dev_get(dp);
|
|
struct dsa_notifier_lag_info info = {
|
|
.dp = dp,
|
|
};
|
|
int err;
|
|
|
|
if (!dp->lag)
|
|
return;
|
|
|
|
/* Port might have been part of a LAG that in turn was
|
|
* attached to a bridge.
|
|
*/
|
|
if (br)
|
|
dsa_port_bridge_leave(dp, br);
|
|
|
|
info.lag = *dp->lag;
|
|
|
|
dsa_port_lag_destroy(dp);
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info);
|
|
if (err)
|
|
dev_err(dp->ds->dev,
|
|
"port %d failed to notify DSA_NOTIFIER_LAG_LEAVE: %pe\n",
|
|
dp->index, ERR_PTR(err));
|
|
}
|
|
|
|
/* Must be called under rcu_read_lock() */
|
|
static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp,
|
|
bool vlan_filtering,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
struct dsa_port *other_dp;
|
|
int err;
|
|
|
|
/* VLAN awareness was off, so the question is "can we turn it on".
|
|
* We may have had 8021q uppers, those need to go. Make sure we don't
|
|
* enter an inconsistent state: deny changing the VLAN awareness state
|
|
* as long as we have 8021q uppers.
|
|
*/
|
|
if (vlan_filtering && dsa_port_is_user(dp)) {
|
|
struct net_device *br = dsa_port_bridge_dev_get(dp);
|
|
struct net_device *upper_dev, *slave = dp->slave;
|
|
struct list_head *iter;
|
|
|
|
netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) {
|
|
struct bridge_vlan_info br_info;
|
|
u16 vid;
|
|
|
|
if (!is_vlan_dev(upper_dev))
|
|
continue;
|
|
|
|
vid = vlan_dev_vlan_id(upper_dev);
|
|
|
|
/* br_vlan_get_info() returns -EINVAL or -ENOENT if the
|
|
* device, respectively the VID is not found, returning
|
|
* 0 means success, which is a failure for us here.
|
|
*/
|
|
err = br_vlan_get_info(br, vid, &br_info);
|
|
if (err == 0) {
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"Must first remove VLAN uppers having VIDs also present in bridge");
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ds->vlan_filtering_is_global)
|
|
return true;
|
|
|
|
/* For cases where enabling/disabling VLAN awareness is global to the
|
|
* switch, we need to handle the case where multiple bridges span
|
|
* different ports of the same switch device and one of them has a
|
|
* different setting than what is being requested.
|
|
*/
|
|
dsa_switch_for_each_port(other_dp, ds) {
|
|
struct net_device *other_br = dsa_port_bridge_dev_get(other_dp);
|
|
|
|
/* If it's the same bridge, it also has same
|
|
* vlan_filtering setting => no need to check
|
|
*/
|
|
if (!other_br || other_br == dsa_port_bridge_dev_get(dp))
|
|
continue;
|
|
|
|
if (br_vlan_enabled(other_br) != vlan_filtering) {
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"VLAN filtering is a global setting");
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
bool old_vlan_filtering = dsa_port_is_vlan_filtering(dp);
|
|
struct dsa_switch *ds = dp->ds;
|
|
bool apply;
|
|
int err;
|
|
|
|
if (!ds->ops->port_vlan_filtering)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* We are called from dsa_slave_switchdev_blocking_event(),
|
|
* which is not under rcu_read_lock(), unlike
|
|
* dsa_slave_switchdev_event().
|
|
*/
|
|
rcu_read_lock();
|
|
apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering, extack);
|
|
rcu_read_unlock();
|
|
if (!apply)
|
|
return -EINVAL;
|
|
|
|
if (dsa_port_is_vlan_filtering(dp) == vlan_filtering)
|
|
return 0;
|
|
|
|
err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering,
|
|
extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (ds->vlan_filtering_is_global) {
|
|
struct dsa_port *other_dp;
|
|
|
|
ds->vlan_filtering = vlan_filtering;
|
|
|
|
dsa_switch_for_each_user_port(other_dp, ds) {
|
|
struct net_device *slave = other_dp->slave;
|
|
|
|
/* We might be called in the unbind path, so not
|
|
* all slave devices might still be registered.
|
|
*/
|
|
if (!slave)
|
|
continue;
|
|
|
|
err = dsa_slave_manage_vlan_filtering(slave,
|
|
vlan_filtering);
|
|
if (err)
|
|
goto restore;
|
|
}
|
|
} else {
|
|
dp->vlan_filtering = vlan_filtering;
|
|
|
|
err = dsa_slave_manage_vlan_filtering(dp->slave,
|
|
vlan_filtering);
|
|
if (err)
|
|
goto restore;
|
|
}
|
|
|
|
return 0;
|
|
|
|
restore:
|
|
ds->ops->port_vlan_filtering(ds, dp->index, old_vlan_filtering, NULL);
|
|
|
|
if (ds->vlan_filtering_is_global)
|
|
ds->vlan_filtering = old_vlan_filtering;
|
|
else
|
|
dp->vlan_filtering = old_vlan_filtering;
|
|
|
|
return err;
|
|
}
|
|
|
|
/* This enforces legacy behavior for switch drivers which assume they can't
|
|
* receive VLAN configuration when enslaved to a bridge with vlan_filtering=0
|
|
*/
|
|
bool dsa_port_skip_vlan_configuration(struct dsa_port *dp)
|
|
{
|
|
struct net_device *br = dsa_port_bridge_dev_get(dp);
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!br)
|
|
return false;
|
|
|
|
return !ds->configure_vlan_while_not_filtering && !br_vlan_enabled(br);
|
|
}
|
|
|
|
int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock)
|
|
{
|
|
unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock);
|
|
unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
|
|
struct dsa_notifier_ageing_time_info info;
|
|
int err;
|
|
|
|
info.ageing_time = ageing_time;
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
|
|
if (err)
|
|
return err;
|
|
|
|
dp->ageing_time = ageing_time;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dsa_port_mst_enable(struct dsa_port *dp, bool on,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
if (on && !dsa_port_supports_mst(dp)) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Hardware does not support MST");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dsa_port_pre_bridge_flags(const struct dsa_port *dp,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->port_pre_bridge_flags)
|
|
return -EINVAL;
|
|
|
|
return ds->ops->port_pre_bridge_flags(ds, dp->index, flags, extack);
|
|
}
|
|
|
|
int dsa_port_bridge_flags(struct dsa_port *dp,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int err;
|
|
|
|
if (!ds->ops->port_bridge_flags)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = ds->ops->port_bridge_flags(ds, dp->index, flags, extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (flags.mask & BR_LEARNING) {
|
|
bool learning = flags.val & BR_LEARNING;
|
|
|
|
if (learning == dp->learning)
|
|
return 0;
|
|
|
|
if ((dp->learning && !learning) &&
|
|
(dp->stp_state == BR_STATE_LEARNING ||
|
|
dp->stp_state == BR_STATE_FORWARDING))
|
|
dsa_port_fast_age(dp);
|
|
|
|
dp->learning = learning;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dsa_port_set_host_flood(struct dsa_port *dp, bool uc, bool mc)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (ds->ops->port_set_host_flood)
|
|
ds->ops->port_set_host_flood(ds, dp->index, uc, mc);
|
|
}
|
|
|
|
int dsa_port_vlan_msti(struct dsa_port *dp,
|
|
const struct switchdev_vlan_msti *msti)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->vlan_msti_set)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->vlan_msti_set(ds, *dp->bridge, msti);
|
|
}
|
|
|
|
int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu)
|
|
{
|
|
struct dsa_notifier_mtu_info info = {
|
|
.dp = dp,
|
|
.mtu = new_mtu,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_MTU, &info);
|
|
}
|
|
|
|
int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.dp = dp,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
/* Refcounting takes bridge.num as a key, and should be global for all
|
|
* bridges in the absence of FDB isolation, and per bridge otherwise.
|
|
* Force the bridge.num to zero here in the absence of FDB isolation.
|
|
*/
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.dp = dp,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info);
|
|
}
|
|
|
|
static int dsa_port_host_fdb_add(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid,
|
|
struct dsa_db db)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.dp = dp,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = db,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_standalone_host_fdb_add(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_PORT,
|
|
.dp = dp,
|
|
};
|
|
|
|
return dsa_port_host_fdb_add(dp, addr, vid, db);
|
|
}
|
|
|
|
int dsa_port_bridge_host_fdb_add(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
};
|
|
int err;
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
db.bridge.num = 0;
|
|
|
|
/* Avoid a call to __dev_set_promiscuity() on the master, which
|
|
* requires rtnl_lock(), since we can't guarantee that is held here,
|
|
* and we can't take it either.
|
|
*/
|
|
if (master->priv_flags & IFF_UNICAST_FLT) {
|
|
err = dev_uc_add(master, addr);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return dsa_port_host_fdb_add(dp, addr, vid, db);
|
|
}
|
|
|
|
static int dsa_port_host_fdb_del(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid,
|
|
struct dsa_db db)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.dp = dp,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = db,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_standalone_host_fdb_del(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_PORT,
|
|
.dp = dp,
|
|
};
|
|
|
|
return dsa_port_host_fdb_del(dp, addr, vid, db);
|
|
}
|
|
|
|
int dsa_port_bridge_host_fdb_del(struct dsa_port *dp,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
};
|
|
int err;
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
db.bridge.num = 0;
|
|
|
|
if (master->priv_flags & IFF_UNICAST_FLT) {
|
|
err = dev_uc_del(master, addr);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return dsa_port_host_fdb_del(dp, addr, vid, db);
|
|
}
|
|
|
|
int dsa_port_lag_fdb_add(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_lag_fdb_info info = {
|
|
.lag = dp->lag,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_lag_fdb_del(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_lag_fdb_info info = {
|
|
.lag = dp->lag,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int port = dp->index;
|
|
|
|
if (!ds->ops->port_fdb_dump)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->port_fdb_dump(ds, port, cb, data);
|
|
}
|
|
|
|
int dsa_port_mdb_add(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.dp = dp,
|
|
.mdb = mdb,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_mdb_del(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.dp = dp,
|
|
.mdb = mdb,
|
|
.db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
},
|
|
};
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
info.db.bridge.num = 0;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info);
|
|
}
|
|
|
|
static int dsa_port_host_mdb_add(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb,
|
|
struct dsa_db db)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.dp = dp,
|
|
.mdb = mdb,
|
|
.db = db,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_standalone_host_mdb_add(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_PORT,
|
|
.dp = dp,
|
|
};
|
|
|
|
return dsa_port_host_mdb_add(dp, mdb, db);
|
|
}
|
|
|
|
int dsa_port_bridge_host_mdb_add(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
};
|
|
int err;
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
db.bridge.num = 0;
|
|
|
|
err = dev_mc_add(master, mdb->addr);
|
|
if (err)
|
|
return err;
|
|
|
|
return dsa_port_host_mdb_add(dp, mdb, db);
|
|
}
|
|
|
|
static int dsa_port_host_mdb_del(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb,
|
|
struct dsa_db db)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.dp = dp,
|
|
.mdb = mdb,
|
|
.db = db,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_standalone_host_mdb_del(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_PORT,
|
|
.dp = dp,
|
|
};
|
|
|
|
return dsa_port_host_mdb_del(dp, mdb, db);
|
|
}
|
|
|
|
int dsa_port_bridge_host_mdb_del(const struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_db db = {
|
|
.type = DSA_DB_BRIDGE,
|
|
.bridge = *dp->bridge,
|
|
};
|
|
int err;
|
|
|
|
if (!dp->ds->fdb_isolation)
|
|
db.bridge.num = 0;
|
|
|
|
err = dev_mc_del(master, mdb->addr);
|
|
if (err)
|
|
return err;
|
|
|
|
return dsa_port_host_mdb_del(dp, mdb, db);
|
|
}
|
|
|
|
int dsa_port_vlan_add(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct dsa_notifier_vlan_info info = {
|
|
.dp = dp,
|
|
.vlan = vlan,
|
|
.extack = extack,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_vlan_del(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
struct dsa_notifier_vlan_info info = {
|
|
.dp = dp,
|
|
.vlan = vlan,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_host_vlan_add(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_notifier_vlan_info info = {
|
|
.dp = dp,
|
|
.vlan = vlan,
|
|
.extack = extack,
|
|
};
|
|
int err;
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_ADD, &info);
|
|
if (err && err != -EOPNOTSUPP)
|
|
return err;
|
|
|
|
vlan_vid_add(master, htons(ETH_P_8021Q), vlan->vid);
|
|
|
|
return err;
|
|
}
|
|
|
|
int dsa_port_host_vlan_del(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
struct net_device *master = dsa_port_to_master(dp);
|
|
struct dsa_notifier_vlan_info info = {
|
|
.dp = dp,
|
|
.vlan = vlan,
|
|
};
|
|
int err;
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_DEL, &info);
|
|
if (err && err != -EOPNOTSUPP)
|
|
return err;
|
|
|
|
vlan_vid_del(master, htons(ETH_P_8021Q), vlan->vid);
|
|
|
|
return err;
|
|
}
|
|
|
|
int dsa_port_mrp_add(const struct dsa_port *dp,
|
|
const struct switchdev_obj_mrp *mrp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->port_mrp_add)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->port_mrp_add(ds, dp->index, mrp);
|
|
}
|
|
|
|
int dsa_port_mrp_del(const struct dsa_port *dp,
|
|
const struct switchdev_obj_mrp *mrp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->port_mrp_del)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->port_mrp_del(ds, dp->index, mrp);
|
|
}
|
|
|
|
int dsa_port_mrp_add_ring_role(const struct dsa_port *dp,
|
|
const struct switchdev_obj_ring_role_mrp *mrp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->port_mrp_add_ring_role)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->port_mrp_add_ring_role(ds, dp->index, mrp);
|
|
}
|
|
|
|
int dsa_port_mrp_del_ring_role(const struct dsa_port *dp,
|
|
const struct switchdev_obj_ring_role_mrp *mrp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->port_mrp_del_ring_role)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ds->ops->port_mrp_del_ring_role(ds, dp->index, mrp);
|
|
}
|
|
|
|
static int dsa_port_assign_master(struct dsa_port *dp,
|
|
struct net_device *master,
|
|
struct netlink_ext_ack *extack,
|
|
bool fail_on_err)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int port = dp->index, err;
|
|
|
|
err = ds->ops->port_change_master(ds, port, master, extack);
|
|
if (err && !fail_on_err)
|
|
dev_err(ds->dev, "port %d failed to assign master %s: %pe\n",
|
|
port, master->name, ERR_PTR(err));
|
|
|
|
if (err && fail_on_err)
|
|
return err;
|
|
|
|
dp->cpu_dp = master->dsa_ptr;
|
|
dp->cpu_port_in_lag = netif_is_lag_master(master);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Change the dp->cpu_dp affinity for a user port. Note that both cross-chip
|
|
* notifiers and drivers have implicit assumptions about user-to-CPU-port
|
|
* mappings, so we unfortunately cannot delay the deletion of the objects
|
|
* (switchdev, standalone addresses, standalone VLANs) on the old CPU port
|
|
* until the new CPU port has been set up. So we need to completely tear down
|
|
* the old CPU port before changing it, and restore it on errors during the
|
|
* bringup of the new one.
|
|
*/
|
|
int dsa_port_change_master(struct dsa_port *dp, struct net_device *master,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct net_device *bridge_dev = dsa_port_bridge_dev_get(dp);
|
|
struct net_device *old_master = dsa_port_to_master(dp);
|
|
struct net_device *dev = dp->slave;
|
|
struct dsa_switch *ds = dp->ds;
|
|
bool vlan_filtering;
|
|
int err, tmp;
|
|
|
|
/* Bridges may hold host FDB, MDB and VLAN objects. These need to be
|
|
* migrated, so dynamically unoffload and later reoffload the bridge
|
|
* port.
|
|
*/
|
|
if (bridge_dev) {
|
|
dsa_port_pre_bridge_leave(dp, bridge_dev);
|
|
dsa_port_bridge_leave(dp, bridge_dev);
|
|
}
|
|
|
|
/* The port might still be VLAN filtering even if it's no longer
|
|
* under a bridge, either due to ds->vlan_filtering_is_global or
|
|
* ds->needs_standalone_vlan_filtering. In turn this means VLANs
|
|
* on the CPU port.
|
|
*/
|
|
vlan_filtering = dsa_port_is_vlan_filtering(dp);
|
|
if (vlan_filtering) {
|
|
err = dsa_slave_manage_vlan_filtering(dev, false);
|
|
if (err) {
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"Failed to remove standalone VLANs");
|
|
goto rewind_old_bridge;
|
|
}
|
|
}
|
|
|
|
/* Standalone addresses, and addresses of upper interfaces like
|
|
* VLAN, LAG, HSR need to be migrated.
|
|
*/
|
|
dsa_slave_unsync_ha(dev);
|
|
|
|
err = dsa_port_assign_master(dp, master, extack, true);
|
|
if (err)
|
|
goto rewind_old_addrs;
|
|
|
|
dsa_slave_sync_ha(dev);
|
|
|
|
if (vlan_filtering) {
|
|
err = dsa_slave_manage_vlan_filtering(dev, true);
|
|
if (err) {
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"Failed to restore standalone VLANs");
|
|
goto rewind_new_addrs;
|
|
}
|
|
}
|
|
|
|
if (bridge_dev) {
|
|
err = dsa_port_bridge_join(dp, bridge_dev, extack);
|
|
if (err && err == -EOPNOTSUPP) {
|
|
NL_SET_ERR_MSG_MOD(extack,
|
|
"Failed to reoffload bridge");
|
|
goto rewind_new_vlan;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
rewind_new_vlan:
|
|
if (vlan_filtering)
|
|
dsa_slave_manage_vlan_filtering(dev, false);
|
|
|
|
rewind_new_addrs:
|
|
dsa_slave_unsync_ha(dev);
|
|
|
|
dsa_port_assign_master(dp, old_master, NULL, false);
|
|
|
|
/* Restore the objects on the old CPU port */
|
|
rewind_old_addrs:
|
|
dsa_slave_sync_ha(dev);
|
|
|
|
if (vlan_filtering) {
|
|
tmp = dsa_slave_manage_vlan_filtering(dev, true);
|
|
if (tmp) {
|
|
dev_err(ds->dev,
|
|
"port %d failed to restore standalone VLANs: %pe\n",
|
|
dp->index, ERR_PTR(tmp));
|
|
}
|
|
}
|
|
|
|
rewind_old_bridge:
|
|
if (bridge_dev) {
|
|
tmp = dsa_port_bridge_join(dp, bridge_dev, extack);
|
|
if (tmp) {
|
|
dev_err(ds->dev,
|
|
"port %d failed to rejoin bridge %s: %pe\n",
|
|
dp->index, bridge_dev->name, ERR_PTR(tmp));
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
|
|
const struct dsa_device_ops *tag_ops)
|
|
{
|
|
cpu_dp->rcv = tag_ops->rcv;
|
|
cpu_dp->tag_ops = tag_ops;
|
|
}
|
|
|
|
static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp)
|
|
{
|
|
struct device_node *phy_dn;
|
|
struct phy_device *phydev;
|
|
|
|
phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0);
|
|
if (!phy_dn)
|
|
return NULL;
|
|
|
|
phydev = of_phy_find_device(phy_dn);
|
|
if (!phydev) {
|
|
of_node_put(phy_dn);
|
|
return ERR_PTR(-EPROBE_DEFER);
|
|
}
|
|
|
|
of_node_put(phy_dn);
|
|
return phydev;
|
|
}
|
|
|
|
static void dsa_port_phylink_validate(struct phylink_config *config,
|
|
unsigned long *supported,
|
|
struct phylink_link_state *state)
|
|
{
|
|
/* Skip call for drivers which don't yet set mac_capabilities,
|
|
* since validating in that case would mean their PHY will advertise
|
|
* nothing. In turn, skipping validation makes them advertise
|
|
* everything that the PHY supports, so those drivers should be
|
|
* converted ASAP.
|
|
*/
|
|
if (config->mac_capabilities)
|
|
phylink_generic_validate(config, supported, state);
|
|
}
|
|
|
|
static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config,
|
|
struct phylink_link_state *state)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct dsa_switch *ds = dp->ds;
|
|
int err;
|
|
|
|
/* Only called for inband modes */
|
|
if (!ds->ops->phylink_mac_link_state) {
|
|
state->link = 0;
|
|
return;
|
|
}
|
|
|
|
err = ds->ops->phylink_mac_link_state(ds, dp->index, state);
|
|
if (err < 0) {
|
|
dev_err(ds->dev, "p%d: phylink_mac_link_state() failed: %d\n",
|
|
dp->index, err);
|
|
state->link = 0;
|
|
}
|
|
}
|
|
|
|
static struct phylink_pcs *
|
|
dsa_port_phylink_mac_select_pcs(struct phylink_config *config,
|
|
phy_interface_t interface)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct phylink_pcs *pcs = ERR_PTR(-EOPNOTSUPP);
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (ds->ops->phylink_mac_select_pcs)
|
|
pcs = ds->ops->phylink_mac_select_pcs(ds, dp->index, interface);
|
|
|
|
return pcs;
|
|
}
|
|
|
|
static void dsa_port_phylink_mac_config(struct phylink_config *config,
|
|
unsigned int mode,
|
|
const struct phylink_link_state *state)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->phylink_mac_config)
|
|
return;
|
|
|
|
ds->ops->phylink_mac_config(ds, dp->index, mode, state);
|
|
}
|
|
|
|
static void dsa_port_phylink_mac_an_restart(struct phylink_config *config)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->phylink_mac_an_restart)
|
|
return;
|
|
|
|
ds->ops->phylink_mac_an_restart(ds, dp->index);
|
|
}
|
|
|
|
static void dsa_port_phylink_mac_link_down(struct phylink_config *config,
|
|
unsigned int mode,
|
|
phy_interface_t interface)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct phy_device *phydev = NULL;
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (dsa_port_is_user(dp))
|
|
phydev = dp->slave->phydev;
|
|
|
|
if (!ds->ops->phylink_mac_link_down) {
|
|
if (ds->ops->adjust_link && phydev)
|
|
ds->ops->adjust_link(ds, dp->index, phydev);
|
|
return;
|
|
}
|
|
|
|
ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface);
|
|
}
|
|
|
|
static void dsa_port_phylink_mac_link_up(struct phylink_config *config,
|
|
struct phy_device *phydev,
|
|
unsigned int mode,
|
|
phy_interface_t interface,
|
|
int speed, int duplex,
|
|
bool tx_pause, bool rx_pause)
|
|
{
|
|
struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->phylink_mac_link_up) {
|
|
if (ds->ops->adjust_link && phydev)
|
|
ds->ops->adjust_link(ds, dp->index, phydev);
|
|
return;
|
|
}
|
|
|
|
ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev,
|
|
speed, duplex, tx_pause, rx_pause);
|
|
}
|
|
|
|
static const struct phylink_mac_ops dsa_port_phylink_mac_ops = {
|
|
.validate = dsa_port_phylink_validate,
|
|
.mac_select_pcs = dsa_port_phylink_mac_select_pcs,
|
|
.mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state,
|
|
.mac_config = dsa_port_phylink_mac_config,
|
|
.mac_an_restart = dsa_port_phylink_mac_an_restart,
|
|
.mac_link_down = dsa_port_phylink_mac_link_down,
|
|
.mac_link_up = dsa_port_phylink_mac_link_up,
|
|
};
|
|
|
|
int dsa_port_phylink_create(struct dsa_port *dp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
phy_interface_t mode;
|
|
struct phylink *pl;
|
|
int err;
|
|
|
|
err = of_get_phy_mode(dp->dn, &mode);
|
|
if (err)
|
|
mode = PHY_INTERFACE_MODE_NA;
|
|
|
|
/* Presence of phylink_mac_link_state or phylink_mac_an_restart is
|
|
* an indicator of a legacy phylink driver.
|
|
*/
|
|
if (ds->ops->phylink_mac_link_state ||
|
|
ds->ops->phylink_mac_an_restart)
|
|
dp->pl_config.legacy_pre_march2020 = true;
|
|
|
|
if (ds->ops->phylink_get_caps)
|
|
ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config);
|
|
|
|
pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn),
|
|
mode, &dsa_port_phylink_mac_ops);
|
|
if (IS_ERR(pl)) {
|
|
pr_err("error creating PHYLINK: %ld\n", PTR_ERR(pl));
|
|
return PTR_ERR(pl);
|
|
}
|
|
|
|
dp->pl = pl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dsa_port_phylink_destroy(struct dsa_port *dp)
|
|
{
|
|
phylink_destroy(dp->pl);
|
|
dp->pl = NULL;
|
|
}
|
|
|
|
static int dsa_shared_port_setup_phy_of(struct dsa_port *dp, bool enable)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
struct phy_device *phydev;
|
|
int port = dp->index;
|
|
int err = 0;
|
|
|
|
phydev = dsa_port_get_phy_device(dp);
|
|
if (!phydev)
|
|
return 0;
|
|
|
|
if (IS_ERR(phydev))
|
|
return PTR_ERR(phydev);
|
|
|
|
if (enable) {
|
|
err = genphy_resume(phydev);
|
|
if (err < 0)
|
|
goto err_put_dev;
|
|
|
|
err = genphy_read_status(phydev);
|
|
if (err < 0)
|
|
goto err_put_dev;
|
|
} else {
|
|
err = genphy_suspend(phydev);
|
|
if (err < 0)
|
|
goto err_put_dev;
|
|
}
|
|
|
|
if (ds->ops->adjust_link)
|
|
ds->ops->adjust_link(ds, port, phydev);
|
|
|
|
dev_dbg(ds->dev, "enabled port's phy: %s", phydev_name(phydev));
|
|
|
|
err_put_dev:
|
|
put_device(&phydev->mdio.dev);
|
|
return err;
|
|
}
|
|
|
|
static int dsa_shared_port_fixed_link_register_of(struct dsa_port *dp)
|
|
{
|
|
struct device_node *dn = dp->dn;
|
|
struct dsa_switch *ds = dp->ds;
|
|
struct phy_device *phydev;
|
|
int port = dp->index;
|
|
phy_interface_t mode;
|
|
int err;
|
|
|
|
err = of_phy_register_fixed_link(dn);
|
|
if (err) {
|
|
dev_err(ds->dev,
|
|
"failed to register the fixed PHY of port %d\n",
|
|
port);
|
|
return err;
|
|
}
|
|
|
|
phydev = of_phy_find_device(dn);
|
|
|
|
err = of_get_phy_mode(dn, &mode);
|
|
if (err)
|
|
mode = PHY_INTERFACE_MODE_NA;
|
|
phydev->interface = mode;
|
|
|
|
genphy_read_status(phydev);
|
|
|
|
if (ds->ops->adjust_link)
|
|
ds->ops->adjust_link(ds, port, phydev);
|
|
|
|
put_device(&phydev->mdio.dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dsa_shared_port_phylink_register(struct dsa_port *dp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
struct device_node *port_dn = dp->dn;
|
|
int err;
|
|
|
|
dp->pl_config.dev = ds->dev;
|
|
dp->pl_config.type = PHYLINK_DEV;
|
|
|
|
err = dsa_port_phylink_create(dp);
|
|
if (err)
|
|
return err;
|
|
|
|
err = phylink_of_phy_connect(dp->pl, port_dn, 0);
|
|
if (err && err != -ENODEV) {
|
|
pr_err("could not attach to PHY: %d\n", err);
|
|
goto err_phy_connect;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_phy_connect:
|
|
dsa_port_phylink_destroy(dp);
|
|
return err;
|
|
}
|
|
|
|
/* During the initial DSA driver migration to OF, port nodes were sometimes
|
|
* added to device trees with no indication of how they should operate from a
|
|
* link management perspective (phy-handle, fixed-link, etc). Additionally, the
|
|
* phy-mode may be absent. The interpretation of these port OF nodes depends on
|
|
* their type.
|
|
*
|
|
* User ports with no phy-handle or fixed-link are expected to connect to an
|
|
* internal PHY located on the ds->slave_mii_bus at an MDIO address equal to
|
|
* the port number. This description is still actively supported.
|
|
*
|
|
* Shared (CPU and DSA) ports with no phy-handle or fixed-link are expected to
|
|
* operate at the maximum speed that their phy-mode is capable of. If the
|
|
* phy-mode is absent, they are expected to operate using the phy-mode
|
|
* supported by the port that gives the highest link speed. It is unspecified
|
|
* if the port should use flow control or not, half duplex or full duplex, or
|
|
* if the phy-mode is a SERDES link, whether in-band autoneg is expected to be
|
|
* enabled or not.
|
|
*
|
|
* In the latter case of shared ports, omitting the link management description
|
|
* from the firmware node is deprecated and strongly discouraged. DSA uses
|
|
* phylink, which rejects the firmware nodes of these ports for lacking
|
|
* required properties.
|
|
*
|
|
* For switches in this table, DSA will skip enforcing validation and will
|
|
* later omit registering a phylink instance for the shared ports, if they lack
|
|
* a fixed-link, a phy-handle, or a managed = "in-band-status" property.
|
|
* It becomes the responsibility of the driver to ensure that these ports
|
|
* operate at the maximum speed (whatever this means) and will interoperate
|
|
* with the DSA master or other cascade port, since phylink methods will not be
|
|
* invoked for them.
|
|
*
|
|
* If you are considering expanding this table for newly introduced switches,
|
|
* think again. It is OK to remove switches from this table if there aren't DT
|
|
* blobs in circulation which rely on defaulting the shared ports.
|
|
*/
|
|
static const char * const dsa_switches_apply_workarounds[] = {
|
|
#if IS_ENABLED(CONFIG_NET_DSA_XRS700X)
|
|
"arrow,xrs7003e",
|
|
"arrow,xrs7003f",
|
|
"arrow,xrs7004e",
|
|
"arrow,xrs7004f",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_B53)
|
|
"brcm,bcm5325",
|
|
"brcm,bcm53115",
|
|
"brcm,bcm53125",
|
|
"brcm,bcm53128",
|
|
"brcm,bcm5365",
|
|
"brcm,bcm5389",
|
|
"brcm,bcm5395",
|
|
"brcm,bcm5397",
|
|
"brcm,bcm5398",
|
|
"brcm,bcm53010-srab",
|
|
"brcm,bcm53011-srab",
|
|
"brcm,bcm53012-srab",
|
|
"brcm,bcm53018-srab",
|
|
"brcm,bcm53019-srab",
|
|
"brcm,bcm5301x-srab",
|
|
"brcm,bcm11360-srab",
|
|
"brcm,bcm58522-srab",
|
|
"brcm,bcm58525-srab",
|
|
"brcm,bcm58535-srab",
|
|
"brcm,bcm58622-srab",
|
|
"brcm,bcm58623-srab",
|
|
"brcm,bcm58625-srab",
|
|
"brcm,bcm88312-srab",
|
|
"brcm,cygnus-srab",
|
|
"brcm,nsp-srab",
|
|
"brcm,omega-srab",
|
|
"brcm,bcm3384-switch",
|
|
"brcm,bcm6328-switch",
|
|
"brcm,bcm6368-switch",
|
|
"brcm,bcm63xx-switch",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_BCM_SF2)
|
|
"brcm,bcm7445-switch-v4.0",
|
|
"brcm,bcm7278-switch-v4.0",
|
|
"brcm,bcm7278-switch-v4.8",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_LANTIQ_GSWIP)
|
|
"lantiq,xrx200-gswip",
|
|
"lantiq,xrx300-gswip",
|
|
"lantiq,xrx330-gswip",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_MV88E6060)
|
|
"marvell,mv88e6060",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_MV88E6XXX)
|
|
"marvell,mv88e6085",
|
|
"marvell,mv88e6190",
|
|
"marvell,mv88e6250",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_COMMON)
|
|
"microchip,ksz8765",
|
|
"microchip,ksz8794",
|
|
"microchip,ksz8795",
|
|
"microchip,ksz8863",
|
|
"microchip,ksz8873",
|
|
"microchip,ksz9477",
|
|
"microchip,ksz9897",
|
|
"microchip,ksz9893",
|
|
"microchip,ksz9563",
|
|
"microchip,ksz8563",
|
|
"microchip,ksz9567",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_MDIO)
|
|
"smsc,lan9303-mdio",
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_I2C)
|
|
"smsc,lan9303-i2c",
|
|
#endif
|
|
NULL,
|
|
};
|
|
|
|
static void dsa_shared_port_validate_of(struct dsa_port *dp,
|
|
bool *missing_phy_mode,
|
|
bool *missing_link_description)
|
|
{
|
|
struct device_node *dn = dp->dn, *phy_np;
|
|
struct dsa_switch *ds = dp->ds;
|
|
phy_interface_t mode;
|
|
|
|
*missing_phy_mode = false;
|
|
*missing_link_description = false;
|
|
|
|
if (of_get_phy_mode(dn, &mode)) {
|
|
*missing_phy_mode = true;
|
|
dev_err(ds->dev,
|
|
"OF node %pOF of %s port %d lacks the required \"phy-mode\" property\n",
|
|
dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
|
|
}
|
|
|
|
/* Note: of_phy_is_fixed_link() also returns true for
|
|
* managed = "in-band-status"
|
|
*/
|
|
if (of_phy_is_fixed_link(dn))
|
|
return;
|
|
|
|
phy_np = of_parse_phandle(dn, "phy-handle", 0);
|
|
if (phy_np) {
|
|
of_node_put(phy_np);
|
|
return;
|
|
}
|
|
|
|
*missing_link_description = true;
|
|
|
|
dev_err(ds->dev,
|
|
"OF node %pOF of %s port %d lacks the required \"phy-handle\", \"fixed-link\" or \"managed\" properties\n",
|
|
dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
|
|
}
|
|
|
|
int dsa_shared_port_link_register_of(struct dsa_port *dp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
bool missing_link_description;
|
|
bool missing_phy_mode;
|
|
int port = dp->index;
|
|
|
|
dsa_shared_port_validate_of(dp, &missing_phy_mode,
|
|
&missing_link_description);
|
|
|
|
if ((missing_phy_mode || missing_link_description) &&
|
|
!of_device_compatible_match(ds->dev->of_node,
|
|
dsa_switches_apply_workarounds))
|
|
return -EINVAL;
|
|
|
|
if (!ds->ops->adjust_link) {
|
|
if (missing_link_description) {
|
|
dev_warn(ds->dev,
|
|
"Skipping phylink registration for %s port %d\n",
|
|
dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
|
|
} else {
|
|
if (ds->ops->phylink_mac_link_down)
|
|
ds->ops->phylink_mac_link_down(ds, port,
|
|
MLO_AN_FIXED, PHY_INTERFACE_MODE_NA);
|
|
|
|
return dsa_shared_port_phylink_register(dp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
dev_warn(ds->dev,
|
|
"Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n");
|
|
|
|
if (of_phy_is_fixed_link(dp->dn))
|
|
return dsa_shared_port_fixed_link_register_of(dp);
|
|
else
|
|
return dsa_shared_port_setup_phy_of(dp, true);
|
|
}
|
|
|
|
void dsa_shared_port_link_unregister_of(struct dsa_port *dp)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
if (!ds->ops->adjust_link && dp->pl) {
|
|
rtnl_lock();
|
|
phylink_disconnect_phy(dp->pl);
|
|
rtnl_unlock();
|
|
dsa_port_phylink_destroy(dp);
|
|
return;
|
|
}
|
|
|
|
if (of_phy_is_fixed_link(dp->dn))
|
|
of_phy_deregister_fixed_link(dp->dn);
|
|
else
|
|
dsa_shared_port_setup_phy_of(dp, false);
|
|
}
|
|
|
|
int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int err;
|
|
|
|
if (!ds->ops->port_hsr_join)
|
|
return -EOPNOTSUPP;
|
|
|
|
dp->hsr_dev = hsr;
|
|
|
|
err = ds->ops->port_hsr_join(ds, dp->index, hsr);
|
|
if (err)
|
|
dp->hsr_dev = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int err;
|
|
|
|
dp->hsr_dev = NULL;
|
|
|
|
if (ds->ops->port_hsr_leave) {
|
|
err = ds->ops->port_hsr_leave(ds, dp->index, hsr);
|
|
if (err)
|
|
dev_err(dp->ds->dev,
|
|
"port %d failed to leave HSR %s: %pe\n",
|
|
dp->index, hsr->name, ERR_PTR(err));
|
|
}
|
|
}
|
|
|
|
int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast)
|
|
{
|
|
struct dsa_notifier_tag_8021q_vlan_info info = {
|
|
.dp = dp,
|
|
.vid = vid,
|
|
};
|
|
|
|
if (broadcast)
|
|
return dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info);
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info);
|
|
}
|
|
|
|
void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast)
|
|
{
|
|
struct dsa_notifier_tag_8021q_vlan_info info = {
|
|
.dp = dp,
|
|
.vid = vid,
|
|
};
|
|
int err;
|
|
|
|
if (broadcast)
|
|
err = dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info);
|
|
else
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info);
|
|
if (err)
|
|
dev_err(dp->ds->dev,
|
|
"port %d failed to notify tag_8021q VLAN %d deletion: %pe\n",
|
|
dp->index, vid, ERR_PTR(err));
|
|
}
|