// SPDX-License-Identifier: (GPL-2.0 OR MIT)
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/* Microsemi Ocelot Switch driver
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*
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* Copyright (c) 2017, 2019 Microsemi Corporation
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*/
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#include <linux/if_bridge.h>
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#include "ocelot.h"
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#include "ocelot_vcap.h"
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int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
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struct flow_cls_offload *f,
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bool ingress)
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{
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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if (!ingress)
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return -EOPNOTSUPP;
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switch (f->command) {
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case FLOW_CLS_REPLACE:
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return ocelot_cls_flower_replace(ocelot, port, f, ingress);
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case FLOW_CLS_DESTROY:
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return ocelot_cls_flower_destroy(ocelot, port, f, ingress);
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case FLOW_CLS_STATS:
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return ocelot_cls_flower_stats(ocelot, port, f, ingress);
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default:
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return -EOPNOTSUPP;
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}
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}
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static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
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struct tc_cls_matchall_offload *f,
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bool ingress)
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{
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struct netlink_ext_ack *extack = f->common.extack;
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struct ocelot *ocelot = priv->port.ocelot;
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struct ocelot_policer pol = { 0 };
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struct flow_action_entry *action;
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int port = priv->chip_port;
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int err;
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if (!ingress) {
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NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
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return -EOPNOTSUPP;
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}
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switch (f->command) {
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case TC_CLSMATCHALL_REPLACE:
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if (!flow_offload_has_one_action(&f->rule->action)) {
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NL_SET_ERR_MSG_MOD(extack,
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"Only one action is supported");
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return -EOPNOTSUPP;
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}
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if (priv->tc.block_shared) {
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NL_SET_ERR_MSG_MOD(extack,
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"Rate limit is not supported on shared blocks");
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return -EOPNOTSUPP;
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}
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action = &f->rule->action.entries[0];
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if (action->id != FLOW_ACTION_POLICE) {
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NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
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return -EOPNOTSUPP;
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}
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if (priv->tc.police_id && priv->tc.police_id != f->cookie) {
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NL_SET_ERR_MSG_MOD(extack,
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"Only one policer per port is supported");
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return -EEXIST;
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}
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pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
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pol.burst = action->police.burst;
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err = ocelot_port_policer_add(ocelot, port, &pol);
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if (err) {
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NL_SET_ERR_MSG_MOD(extack, "Could not add policer");
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return err;
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}
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priv->tc.police_id = f->cookie;
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priv->tc.offload_cnt++;
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return 0;
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case TC_CLSMATCHALL_DESTROY:
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if (priv->tc.police_id != f->cookie)
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return -ENOENT;
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err = ocelot_port_policer_del(ocelot, port);
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if (err) {
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NL_SET_ERR_MSG_MOD(extack,
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"Could not delete policer");
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return err;
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}
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priv->tc.police_id = 0;
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priv->tc.offload_cnt--;
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return 0;
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case TC_CLSMATCHALL_STATS:
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default:
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return -EOPNOTSUPP;
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}
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}
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static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
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void *type_data,
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void *cb_priv, bool ingress)
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{
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struct ocelot_port_private *priv = cb_priv;
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if (!tc_cls_can_offload_and_chain0(priv->dev, type_data))
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return -EOPNOTSUPP;
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switch (type) {
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case TC_SETUP_CLSMATCHALL:
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return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
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case TC_SETUP_CLSFLOWER:
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return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
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default:
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return -EOPNOTSUPP;
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}
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}
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static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type,
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void *type_data,
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void *cb_priv)
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{
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return ocelot_setup_tc_block_cb(type, type_data,
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cb_priv, true);
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}
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static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type,
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void *type_data,
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void *cb_priv)
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{
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return ocelot_setup_tc_block_cb(type, type_data,
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cb_priv, false);
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}
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static LIST_HEAD(ocelot_block_cb_list);
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static int ocelot_setup_tc_block(struct ocelot_port_private *priv,
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struct flow_block_offload *f)
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{
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struct flow_block_cb *block_cb;
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flow_setup_cb_t *cb;
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if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
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cb = ocelot_setup_tc_block_cb_ig;
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priv->tc.block_shared = f->block_shared;
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} else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
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cb = ocelot_setup_tc_block_cb_eg;
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} else {
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return -EOPNOTSUPP;
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}
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f->driver_block_list = &ocelot_block_cb_list;
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switch (f->command) {
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case FLOW_BLOCK_BIND:
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if (flow_block_cb_is_busy(cb, priv, &ocelot_block_cb_list))
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return -EBUSY;
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block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
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if (IS_ERR(block_cb))
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return PTR_ERR(block_cb);
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flow_block_cb_add(block_cb, f);
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list_add_tail(&block_cb->driver_list, f->driver_block_list);
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return 0;
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case FLOW_BLOCK_UNBIND:
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block_cb = flow_block_cb_lookup(f->block, cb, priv);
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if (!block_cb)
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return -ENOENT;
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flow_block_cb_remove(block_cb, f);
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list_del(&block_cb->driver_list);
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return 0;
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default:
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return -EOPNOTSUPP;
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}
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}
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static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type,
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void *type_data)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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switch (type) {
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case TC_SETUP_BLOCK:
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return ocelot_setup_tc_block(priv, type_data);
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default:
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return -EOPNOTSUPP;
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}
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return 0;
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}
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static void ocelot_port_adjust_link(struct net_device *dev)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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ocelot_adjust_link(ocelot, port, dev->phydev);
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}
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static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
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bool untagged)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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int port = priv->chip_port;
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int ret;
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ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged);
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if (ret)
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return ret;
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/* Add the port MAC address to with the right VLAN information */
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ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid,
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ENTRYTYPE_LOCKED);
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return 0;
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}
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static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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int ret;
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/* 8021q removes VID 0 on module unload for all interfaces
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* with VLAN filtering feature. We need to keep it to receive
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* untagged traffic.
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*/
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if (vid == 0)
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return 0;
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ret = ocelot_vlan_del(ocelot, port, vid);
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if (ret)
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return ret;
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/* Del the port MAC address to with the right VLAN information */
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ocelot_mact_forget(ocelot, dev->dev_addr, vid);
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return 0;
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}
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static int ocelot_port_open(struct net_device *dev)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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int port = priv->chip_port;
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int err;
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if (priv->serdes) {
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err = phy_set_mode_ext(priv->serdes, PHY_MODE_ETHERNET,
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ocelot_port->phy_mode);
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if (err) {
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netdev_err(dev, "Could not set mode of SerDes\n");
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return err;
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}
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}
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err = phy_connect_direct(dev, priv->phy, &ocelot_port_adjust_link,
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ocelot_port->phy_mode);
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if (err) {
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netdev_err(dev, "Could not attach to PHY\n");
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return err;
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}
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dev->phydev = priv->phy;
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phy_attached_info(priv->phy);
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phy_start(priv->phy);
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ocelot_port_enable(ocelot, port, priv->phy);
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return 0;
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}
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static int ocelot_port_stop(struct net_device *dev)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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phy_disconnect(priv->phy);
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dev->phydev = NULL;
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ocelot_port_disable(ocelot, port);
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return 0;
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}
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/* Generate the IFH for frame injection
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*
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* The IFH is a 128bit-value
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* bit 127: bypass the analyzer processing
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* bit 56-67: destination mask
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* bit 28-29: pop_cnt: 3 disables all rewriting of the frame
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* bit 20-27: cpu extraction queue mask
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* bit 16: tag type 0: C-tag, 1: S-tag
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* bit 0-11: VID
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*/
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static int ocelot_gen_ifh(u32 *ifh, struct frame_info *info)
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{
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ifh[0] = IFH_INJ_BYPASS | ((0x1ff & info->rew_op) << 21);
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ifh[1] = (0xf00 & info->port) >> 8;
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ifh[2] = (0xff & info->port) << 24;
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ifh[3] = (info->tag_type << 16) | info->vid;
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return 0;
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}
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static int ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct skb_shared_info *shinfo = skb_shinfo(skb);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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u32 val, ifh[OCELOT_TAG_LEN / 4];
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struct frame_info info = {};
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u8 grp = 0; /* Send everything on CPU group 0 */
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unsigned int i, count, last;
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int port = priv->chip_port;
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val = ocelot_read(ocelot, QS_INJ_STATUS);
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if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) ||
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(val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp))))
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return NETDEV_TX_BUSY;
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ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
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QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
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info.port = BIT(port);
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info.tag_type = IFH_TAG_TYPE_C;
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info.vid = skb_vlan_tag_get(skb);
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/* Check if timestamping is needed */
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if (ocelot->ptp && (shinfo->tx_flags & SKBTX_HW_TSTAMP)) {
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info.rew_op = ocelot_port->ptp_cmd;
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if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
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struct sk_buff *clone;
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clone = skb_clone_sk(skb);
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if (!clone) {
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kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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ocelot_port_add_txtstamp_skb(ocelot, port, clone);
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info.rew_op |= clone->cb[0] << 3;
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}
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}
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if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP) {
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info.rew_op = ocelot_port->ptp_cmd;
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if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP)
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info.rew_op |= skb->cb[0] << 3;
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}
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ocelot_gen_ifh(ifh, &info);
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for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
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ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]),
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QS_INJ_WR, grp);
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count = (skb->len + 3) / 4;
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last = skb->len % 4;
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for (i = 0; i < count; i++)
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ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
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/* Add padding */
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while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
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ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
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i++;
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}
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/* Indicate EOF and valid bytes in last word */
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ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
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QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
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QS_INJ_CTRL_EOF,
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QS_INJ_CTRL, grp);
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/* Add dummy CRC */
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ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
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skb_tx_timestamp(skb);
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dev->stats.tx_packets++;
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dev->stats.tx_bytes += skb->len;
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kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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return ocelot_mact_forget(ocelot, addr, ocelot_port->pvid);
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}
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static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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return ocelot_mact_learn(ocelot, PGID_CPU, addr, ocelot_port->pvid,
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ENTRYTYPE_LOCKED);
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}
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static void ocelot_set_rx_mode(struct net_device *dev)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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u32 val;
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int i;
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/* This doesn't handle promiscuous mode because the bridge core is
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* setting IFF_PROMISC on all slave interfaces and all frames would be
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* forwarded to the CPU port.
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*/
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val = GENMASK(ocelot->num_phys_ports - 1, 0);
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for_each_nonreserved_multicast_dest_pgid(ocelot, i)
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ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
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__dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
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}
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static int ocelot_port_get_phys_port_name(struct net_device *dev,
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char *buf, size_t len)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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int port = priv->chip_port;
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int ret;
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ret = snprintf(buf, len, "p%d", port);
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if (ret >= len)
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return -EINVAL;
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return 0;
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}
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static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot_port *ocelot_port = &priv->port;
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struct ocelot *ocelot = ocelot_port->ocelot;
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const struct sockaddr *addr = p;
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/* Learn the new net device MAC address in the mac table. */
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ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data, ocelot_port->pvid,
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ENTRYTYPE_LOCKED);
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/* Then forget the previous one. */
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ocelot_mact_forget(ocelot, dev->dev_addr, ocelot_port->pvid);
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ether_addr_copy(dev->dev_addr, addr->sa_data);
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return 0;
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}
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static void ocelot_get_stats64(struct net_device *dev,
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struct rtnl_link_stats64 *stats)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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/* Configure the port to read the stats from */
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ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port),
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SYS_STAT_CFG);
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/* Get Rx stats */
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stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS);
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stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) +
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ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) +
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ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) +
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ocelot_read(ocelot, SYS_COUNT_RX_LONGS) +
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ocelot_read(ocelot, SYS_COUNT_RX_64) +
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ocelot_read(ocelot, SYS_COUNT_RX_65_127) +
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ocelot_read(ocelot, SYS_COUNT_RX_128_255) +
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ocelot_read(ocelot, SYS_COUNT_RX_256_1023) +
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ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) +
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ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX);
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stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST);
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stats->rx_dropped = dev->stats.rx_dropped;
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/* Get Tx stats */
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stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS);
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stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) +
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ocelot_read(ocelot, SYS_COUNT_TX_65_127) +
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ocelot_read(ocelot, SYS_COUNT_TX_128_511) +
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ocelot_read(ocelot, SYS_COUNT_TX_512_1023) +
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ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) +
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ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX);
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stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) +
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ocelot_read(ocelot, SYS_COUNT_TX_AGING);
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stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION);
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}
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static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr,
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u16 vid, u16 flags,
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struct netlink_ext_ack *extack)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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return ocelot_fdb_add(ocelot, port, addr, vid);
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}
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static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr, u16 vid)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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int port = priv->chip_port;
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return ocelot_fdb_del(ocelot, port, addr, vid);
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}
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static int ocelot_port_fdb_dump(struct sk_buff *skb,
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struct netlink_callback *cb,
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struct net_device *dev,
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struct net_device *filter_dev, int *idx)
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{
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struct ocelot_port_private *priv = netdev_priv(dev);
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struct ocelot *ocelot = priv->port.ocelot;
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struct ocelot_dump_ctx dump = {
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.dev = dev,
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.skb = skb,
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.cb = cb,
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.idx = *idx,
|
};
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int port = priv->chip_port;
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int ret;
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ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
|
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*idx = dump.idx;
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return ret;
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}
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static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
|
u16 vid)
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{
|
return ocelot_vlan_vid_add(dev, vid, false, false);
|
}
|
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static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
|
u16 vid)
|
{
|
return ocelot_vlan_vid_del(dev, vid);
|
}
|
|
static void ocelot_vlan_mode(struct ocelot *ocelot, int port,
|
netdev_features_t features)
|
{
|
u32 val;
|
|
/* Filtering */
|
val = ocelot_read(ocelot, ANA_VLANMASK);
|
if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
|
val |= BIT(port);
|
else
|
val &= ~BIT(port);
|
ocelot_write(ocelot, val, ANA_VLANMASK);
|
}
|
|
static int ocelot_set_features(struct net_device *dev,
|
netdev_features_t features)
|
{
|
netdev_features_t changed = dev->features ^ features;
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
|
priv->tc.offload_cnt) {
|
netdev_err(dev,
|
"Cannot disable HW TC offload while offloads active\n");
|
return -EBUSY;
|
}
|
|
if (changed & NETIF_F_HW_VLAN_CTAG_FILTER)
|
ocelot_vlan_mode(ocelot, port, features);
|
|
return 0;
|
}
|
|
static int ocelot_get_port_parent_id(struct net_device *dev,
|
struct netdev_phys_item_id *ppid)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
|
ppid->id_len = sizeof(ocelot->base_mac);
|
memcpy(&ppid->id, &ocelot->base_mac, ppid->id_len);
|
|
return 0;
|
}
|
|
static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
/* If the attached PHY device isn't capable of timestamping operations,
|
* use our own (when possible).
|
*/
|
if (!phy_has_hwtstamp(dev->phydev) && ocelot->ptp) {
|
switch (cmd) {
|
case SIOCSHWTSTAMP:
|
return ocelot_hwstamp_set(ocelot, port, ifr);
|
case SIOCGHWTSTAMP:
|
return ocelot_hwstamp_get(ocelot, port, ifr);
|
}
|
}
|
|
return phy_mii_ioctl(dev->phydev, ifr, cmd);
|
}
|
|
static const struct net_device_ops ocelot_port_netdev_ops = {
|
.ndo_open = ocelot_port_open,
|
.ndo_stop = ocelot_port_stop,
|
.ndo_start_xmit = ocelot_port_xmit,
|
.ndo_set_rx_mode = ocelot_set_rx_mode,
|
.ndo_get_phys_port_name = ocelot_port_get_phys_port_name,
|
.ndo_set_mac_address = ocelot_port_set_mac_address,
|
.ndo_get_stats64 = ocelot_get_stats64,
|
.ndo_fdb_add = ocelot_port_fdb_add,
|
.ndo_fdb_del = ocelot_port_fdb_del,
|
.ndo_fdb_dump = ocelot_port_fdb_dump,
|
.ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid,
|
.ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid,
|
.ndo_set_features = ocelot_set_features,
|
.ndo_get_port_parent_id = ocelot_get_port_parent_id,
|
.ndo_setup_tc = ocelot_setup_tc,
|
.ndo_do_ioctl = ocelot_ioctl,
|
};
|
|
struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port)
|
{
|
struct ocelot_port *ocelot_port = ocelot->ports[port];
|
struct ocelot_port_private *priv;
|
|
if (!ocelot_port)
|
return NULL;
|
|
priv = container_of(ocelot_port, struct ocelot_port_private, port);
|
|
return priv->dev;
|
}
|
|
/* Checks if the net_device instance given to us originates from our driver */
|
static bool ocelot_netdevice_dev_check(const struct net_device *dev)
|
{
|
return dev->netdev_ops == &ocelot_port_netdev_ops;
|
}
|
|
int ocelot_netdev_to_port(struct net_device *dev)
|
{
|
struct ocelot_port_private *priv;
|
|
if (!dev || !ocelot_netdevice_dev_check(dev))
|
return -EINVAL;
|
|
priv = netdev_priv(dev);
|
|
return priv->chip_port;
|
}
|
|
static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
|
u8 *data)
|
{
|
struct ocelot_port_private *priv = netdev_priv(netdev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
ocelot_get_strings(ocelot, port, sset, data);
|
}
|
|
static void ocelot_port_get_ethtool_stats(struct net_device *dev,
|
struct ethtool_stats *stats,
|
u64 *data)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
ocelot_get_ethtool_stats(ocelot, port, data);
|
}
|
|
static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
return ocelot_get_sset_count(ocelot, port, sset);
|
}
|
|
static int ocelot_port_get_ts_info(struct net_device *dev,
|
struct ethtool_ts_info *info)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
|
if (!ocelot->ptp)
|
return ethtool_op_get_ts_info(dev, info);
|
|
return ocelot_get_ts_info(ocelot, port, info);
|
}
|
|
static const struct ethtool_ops ocelot_ethtool_ops = {
|
.get_strings = ocelot_port_get_strings,
|
.get_ethtool_stats = ocelot_port_get_ethtool_stats,
|
.get_sset_count = ocelot_port_get_sset_count,
|
.get_link_ksettings = phy_ethtool_get_link_ksettings,
|
.set_link_ksettings = phy_ethtool_set_link_ksettings,
|
.get_ts_info = ocelot_port_get_ts_info,
|
};
|
|
static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
|
struct switchdev_trans *trans,
|
u8 state)
|
{
|
if (switchdev_trans_ph_prepare(trans))
|
return;
|
|
ocelot_bridge_stp_state_set(ocelot, port, state);
|
}
|
|
static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port,
|
unsigned long ageing_clock_t)
|
{
|
unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
|
u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
|
|
ocelot_set_ageing_time(ocelot, ageing_time);
|
}
|
|
static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
|
{
|
u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA |
|
ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA |
|
ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA;
|
u32 val = 0;
|
|
if (mc)
|
val = cpu_fwd_mcast;
|
|
ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast,
|
ANA_PORT_CPU_FWD_CFG, port);
|
}
|
|
static int ocelot_port_attr_set(struct net_device *dev,
|
const struct switchdev_attr *attr,
|
struct switchdev_trans *trans)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot *ocelot = priv->port.ocelot;
|
int port = priv->chip_port;
|
int err = 0;
|
|
switch (attr->id) {
|
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
|
ocelot_port_attr_stp_state_set(ocelot, port, trans,
|
attr->u.stp_state);
|
break;
|
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
|
ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
|
break;
|
case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
|
ocelot_port_vlan_filtering(ocelot, port,
|
attr->u.vlan_filtering, trans);
|
break;
|
case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
|
ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
|
break;
|
default:
|
err = -EOPNOTSUPP;
|
break;
|
}
|
|
return err;
|
}
|
|
static int ocelot_port_obj_add_vlan(struct net_device *dev,
|
const struct switchdev_obj_port_vlan *vlan,
|
struct switchdev_trans *trans)
|
{
|
int ret;
|
u16 vid;
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
|
ret = ocelot_vlan_vid_add(dev, vid,
|
vlan->flags & BRIDGE_VLAN_INFO_PVID,
|
vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED);
|
if (ret)
|
return ret;
|
}
|
|
return 0;
|
}
|
|
static int ocelot_port_vlan_del_vlan(struct net_device *dev,
|
const struct switchdev_obj_port_vlan *vlan)
|
{
|
int ret;
|
u16 vid;
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
|
ret = ocelot_vlan_vid_del(dev, vid);
|
|
if (ret)
|
return ret;
|
}
|
|
return 0;
|
}
|
|
static int ocelot_port_obj_add_mdb(struct net_device *dev,
|
const struct switchdev_obj_port_mdb *mdb,
|
struct switchdev_trans *trans)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot_port *ocelot_port = &priv->port;
|
struct ocelot *ocelot = ocelot_port->ocelot;
|
int port = priv->chip_port;
|
|
if (switchdev_trans_ph_prepare(trans))
|
return 0;
|
|
return ocelot_port_mdb_add(ocelot, port, mdb);
|
}
|
|
static int ocelot_port_obj_del_mdb(struct net_device *dev,
|
const struct switchdev_obj_port_mdb *mdb)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot_port *ocelot_port = &priv->port;
|
struct ocelot *ocelot = ocelot_port->ocelot;
|
int port = priv->chip_port;
|
|
return ocelot_port_mdb_del(ocelot, port, mdb);
|
}
|
|
static int ocelot_port_obj_add(struct net_device *dev,
|
const struct switchdev_obj *obj,
|
struct switchdev_trans *trans,
|
struct netlink_ext_ack *extack)
|
{
|
int ret = 0;
|
|
switch (obj->id) {
|
case SWITCHDEV_OBJ_ID_PORT_VLAN:
|
ret = ocelot_port_obj_add_vlan(dev,
|
SWITCHDEV_OBJ_PORT_VLAN(obj),
|
trans);
|
break;
|
case SWITCHDEV_OBJ_ID_PORT_MDB:
|
ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
|
trans);
|
break;
|
default:
|
return -EOPNOTSUPP;
|
}
|
|
return ret;
|
}
|
|
static int ocelot_port_obj_del(struct net_device *dev,
|
const struct switchdev_obj *obj)
|
{
|
int ret = 0;
|
|
switch (obj->id) {
|
case SWITCHDEV_OBJ_ID_PORT_VLAN:
|
ret = ocelot_port_vlan_del_vlan(dev,
|
SWITCHDEV_OBJ_PORT_VLAN(obj));
|
break;
|
case SWITCHDEV_OBJ_ID_PORT_MDB:
|
ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
|
break;
|
default:
|
return -EOPNOTSUPP;
|
}
|
|
return ret;
|
}
|
|
static int ocelot_netdevice_port_event(struct net_device *dev,
|
unsigned long event,
|
struct netdev_notifier_changeupper_info *info)
|
{
|
struct ocelot_port_private *priv = netdev_priv(dev);
|
struct ocelot_port *ocelot_port = &priv->port;
|
struct ocelot *ocelot = ocelot_port->ocelot;
|
int port = priv->chip_port;
|
int err = 0;
|
|
switch (event) {
|
case NETDEV_CHANGEUPPER:
|
if (netif_is_bridge_master(info->upper_dev)) {
|
if (info->linking) {
|
err = ocelot_port_bridge_join(ocelot, port,
|
info->upper_dev);
|
} else {
|
err = ocelot_port_bridge_leave(ocelot, port,
|
info->upper_dev);
|
}
|
}
|
if (netif_is_lag_master(info->upper_dev)) {
|
if (info->linking)
|
err = ocelot_port_lag_join(ocelot, port,
|
info->upper_dev);
|
else
|
ocelot_port_lag_leave(ocelot, port,
|
info->upper_dev);
|
}
|
break;
|
default:
|
break;
|
}
|
|
return err;
|
}
|
|
static int ocelot_netdevice_event(struct notifier_block *unused,
|
unsigned long event, void *ptr)
|
{
|
struct netdev_notifier_changeupper_info *info = ptr;
|
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
|
int ret = 0;
|
|
if (event == NETDEV_PRECHANGEUPPER &&
|
ocelot_netdevice_dev_check(dev) &&
|
netif_is_lag_master(info->upper_dev)) {
|
struct netdev_lag_upper_info *lag_upper_info = info->upper_info;
|
struct netlink_ext_ack *extack;
|
|
if (lag_upper_info &&
|
lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
|
extack = netdev_notifier_info_to_extack(&info->info);
|
NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
|
|
ret = -EINVAL;
|
goto notify;
|
}
|
}
|
|
if (netif_is_lag_master(dev)) {
|
struct net_device *slave;
|
struct list_head *iter;
|
|
netdev_for_each_lower_dev(dev, slave, iter) {
|
ret = ocelot_netdevice_port_event(slave, event, info);
|
if (ret)
|
goto notify;
|
}
|
} else {
|
ret = ocelot_netdevice_port_event(dev, event, info);
|
}
|
|
notify:
|
return notifier_from_errno(ret);
|
}
|
|
struct notifier_block ocelot_netdevice_nb __read_mostly = {
|
.notifier_call = ocelot_netdevice_event,
|
};
|
|
static int ocelot_switchdev_event(struct notifier_block *unused,
|
unsigned long event, void *ptr)
|
{
|
struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
|
int err;
|
|
switch (event) {
|
case SWITCHDEV_PORT_ATTR_SET:
|
err = switchdev_handle_port_attr_set(dev, ptr,
|
ocelot_netdevice_dev_check,
|
ocelot_port_attr_set);
|
return notifier_from_errno(err);
|
}
|
|
return NOTIFY_DONE;
|
}
|
|
struct notifier_block ocelot_switchdev_nb __read_mostly = {
|
.notifier_call = ocelot_switchdev_event,
|
};
|
|
static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
|
unsigned long event, void *ptr)
|
{
|
struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
|
int err;
|
|
switch (event) {
|
/* Blocking events. */
|
case SWITCHDEV_PORT_OBJ_ADD:
|
err = switchdev_handle_port_obj_add(dev, ptr,
|
ocelot_netdevice_dev_check,
|
ocelot_port_obj_add);
|
return notifier_from_errno(err);
|
case SWITCHDEV_PORT_OBJ_DEL:
|
err = switchdev_handle_port_obj_del(dev, ptr,
|
ocelot_netdevice_dev_check,
|
ocelot_port_obj_del);
|
return notifier_from_errno(err);
|
case SWITCHDEV_PORT_ATTR_SET:
|
err = switchdev_handle_port_attr_set(dev, ptr,
|
ocelot_netdevice_dev_check,
|
ocelot_port_attr_set);
|
return notifier_from_errno(err);
|
}
|
|
return NOTIFY_DONE;
|
}
|
|
struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
|
.notifier_call = ocelot_switchdev_blocking_event,
|
};
|
|
int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
|
struct phy_device *phy)
|
{
|
struct ocelot_port_private *priv;
|
struct ocelot_port *ocelot_port;
|
struct net_device *dev;
|
int err;
|
|
dev = alloc_etherdev(sizeof(struct ocelot_port_private));
|
if (!dev)
|
return -ENOMEM;
|
SET_NETDEV_DEV(dev, ocelot->dev);
|
priv = netdev_priv(dev);
|
priv->dev = dev;
|
priv->phy = phy;
|
priv->chip_port = port;
|
ocelot_port = &priv->port;
|
ocelot_port->ocelot = ocelot;
|
ocelot_port->target = target;
|
ocelot->ports[port] = ocelot_port;
|
|
dev->netdev_ops = &ocelot_port_netdev_ops;
|
dev->ethtool_ops = &ocelot_ethtool_ops;
|
|
dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS |
|
NETIF_F_HW_TC;
|
dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
|
|
memcpy(dev->dev_addr, ocelot->base_mac, ETH_ALEN);
|
dev->dev_addr[ETH_ALEN - 1] += port;
|
ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, ocelot_port->pvid,
|
ENTRYTYPE_LOCKED);
|
|
ocelot_init_port(ocelot, port);
|
|
err = register_netdev(dev);
|
if (err) {
|
dev_err(ocelot->dev, "register_netdev failed\n");
|
free_netdev(dev);
|
}
|
|
return err;
|
}
|
