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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/ethernet/mscc/ocelot_net.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_net.c')
-rw-r--r--drivers/net/ethernet/mscc/ocelot_net.c1916
1 files changed, 1916 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
new file mode 100644
index 000000000..50858cc10
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_net.c
@@ -0,0 +1,1916 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Microsemi Ocelot Switch driver
+ *
+ * This contains glue logic between the switchdev driver operations and the
+ * mscc_ocelot_switch_lib.
+ *
+ * Copyright (c) 2017, 2019 Microsemi Corporation
+ * Copyright 2020-2021 NXP
+ */
+
+#include <linux/dsa/ocelot.h>
+#include <linux/if_bridge.h>
+#include <linux/of_net.h>
+#include <linux/phy/phy.h>
+#include <net/pkt_cls.h>
+#include "ocelot.h"
+#include "ocelot_police.h"
+#include "ocelot_vcap.h"
+#include "ocelot_fdma.h"
+
+#define OCELOT_MAC_QUIRKS OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP
+
+struct ocelot_dump_ctx {
+ struct net_device *dev;
+ struct sk_buff *skb;
+ struct netlink_callback *cb;
+ int idx;
+};
+
+static bool ocelot_netdevice_dev_check(const struct net_device *dev);
+
+static struct ocelot *devlink_port_to_ocelot(struct devlink_port *dlp)
+{
+ return devlink_priv(dlp->devlink);
+}
+
+static int devlink_port_to_port(struct devlink_port *dlp)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+
+ return dlp - ocelot->devlink_ports;
+}
+
+static int ocelot_devlink_sb_pool_get(struct devlink *dl,
+ unsigned int sb_index, u16 pool_index,
+ struct devlink_sb_pool_info *pool_info)
+{
+ struct ocelot *ocelot = devlink_priv(dl);
+
+ return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info);
+}
+
+static int ocelot_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index,
+ u16 pool_index, u32 size,
+ enum devlink_sb_threshold_type threshold_type,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot *ocelot = devlink_priv(dl);
+
+ return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size,
+ threshold_type, extack);
+}
+
+static int ocelot_devlink_sb_port_pool_get(struct devlink_port *dlp,
+ unsigned int sb_index, u16 pool_index,
+ u32 *p_threshold)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index,
+ p_threshold);
+}
+
+static int ocelot_devlink_sb_port_pool_set(struct devlink_port *dlp,
+ unsigned int sb_index, u16 pool_index,
+ u32 threshold,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index,
+ threshold, extack);
+}
+
+static int
+ocelot_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp,
+ unsigned int sb_index, u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ u16 *p_pool_index, u32 *p_threshold)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index,
+ pool_type, p_pool_index,
+ p_threshold);
+}
+
+static int
+ocelot_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp,
+ unsigned int sb_index, u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ u16 pool_index, u32 threshold,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index,
+ pool_type, pool_index, threshold,
+ extack);
+}
+
+static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl,
+ unsigned int sb_index)
+{
+ struct ocelot *ocelot = devlink_priv(dl);
+
+ return ocelot_sb_occ_snapshot(ocelot, sb_index);
+}
+
+static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl,
+ unsigned int sb_index)
+{
+ struct ocelot *ocelot = devlink_priv(dl);
+
+ return ocelot_sb_occ_max_clear(ocelot, sb_index);
+}
+
+static int ocelot_devlink_sb_occ_port_pool_get(struct devlink_port *dlp,
+ unsigned int sb_index,
+ u16 pool_index, u32 *p_cur,
+ u32 *p_max)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index,
+ p_cur, p_max);
+}
+
+static int
+ocelot_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp,
+ unsigned int sb_index, u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ u32 *p_cur, u32 *p_max)
+{
+ struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+ int port = devlink_port_to_port(dlp);
+
+ return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index,
+ tc_index, pool_type,
+ p_cur, p_max);
+}
+
+const struct devlink_ops ocelot_devlink_ops = {
+ .sb_pool_get = ocelot_devlink_sb_pool_get,
+ .sb_pool_set = ocelot_devlink_sb_pool_set,
+ .sb_port_pool_get = ocelot_devlink_sb_port_pool_get,
+ .sb_port_pool_set = ocelot_devlink_sb_port_pool_set,
+ .sb_tc_pool_bind_get = ocelot_devlink_sb_tc_pool_bind_get,
+ .sb_tc_pool_bind_set = ocelot_devlink_sb_tc_pool_bind_set,
+ .sb_occ_snapshot = ocelot_devlink_sb_occ_snapshot,
+ .sb_occ_max_clear = ocelot_devlink_sb_occ_max_clear,
+ .sb_occ_port_pool_get = ocelot_devlink_sb_occ_port_pool_get,
+ .sb_occ_tc_port_bind_get = ocelot_devlink_sb_occ_tc_port_bind_get,
+};
+
+int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
+ enum devlink_port_flavour flavour)
+{
+ struct devlink_port *dlp = &ocelot->devlink_ports[port];
+ int id_len = sizeof(ocelot->base_mac);
+ struct devlink *dl = ocelot->devlink;
+ struct devlink_port_attrs attrs = {};
+
+ memset(dlp, 0, sizeof(*dlp));
+ memcpy(attrs.switch_id.id, &ocelot->base_mac, id_len);
+ attrs.switch_id.id_len = id_len;
+ attrs.phys.port_number = port;
+ attrs.flavour = flavour;
+
+ devlink_port_attrs_set(dlp, &attrs);
+
+ return devlink_port_register(dl, dlp, port);
+}
+
+void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port)
+{
+ struct devlink_port *dlp = &ocelot->devlink_ports[port];
+
+ devlink_port_unregister(dlp);
+}
+
+static struct devlink_port *ocelot_get_devlink_port(struct net_device *dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ return &ocelot->devlink_ports[port];
+}
+
+int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
+ struct flow_cls_offload *f,
+ bool ingress)
+{
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ if (!ingress)
+ return -EOPNOTSUPP;
+
+ switch (f->command) {
+ case FLOW_CLS_REPLACE:
+ return ocelot_cls_flower_replace(ocelot, port, f, ingress);
+ case FLOW_CLS_DESTROY:
+ return ocelot_cls_flower_destroy(ocelot, port, f, ingress);
+ case FLOW_CLS_STATS:
+ return ocelot_cls_flower_stats(ocelot, port, f, ingress);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int ocelot_setup_tc_cls_matchall_police(struct ocelot_port_private *priv,
+ struct tc_cls_matchall_offload *f,
+ bool ingress,
+ struct netlink_ext_ack *extack)
+{
+ struct flow_action_entry *action = &f->rule->action.entries[0];
+ struct ocelot *ocelot = priv->port.ocelot;
+ struct ocelot_policer pol = { 0 };
+ int port = priv->port.index;
+ int err;
+
+ if (!ingress) {
+ NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
+ return -EOPNOTSUPP;
+ }
+
+ if (priv->tc.police_id && priv->tc.police_id != f->cookie) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Only one policer per port is supported");
+ return -EEXIST;
+ }
+
+ err = ocelot_policer_validate(&f->rule->action, action, extack);
+ if (err)
+ return err;
+
+ pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
+ pol.burst = action->police.burst;
+
+ err = ocelot_port_policer_add(ocelot, port, &pol);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Could not add policer");
+ return err;
+ }
+
+ priv->tc.police_id = f->cookie;
+ priv->tc.offload_cnt++;
+
+ return 0;
+}
+
+static int ocelot_setup_tc_cls_matchall_mirred(struct ocelot_port_private *priv,
+ struct tc_cls_matchall_offload *f,
+ bool ingress,
+ struct netlink_ext_ack *extack)
+{
+ struct flow_action *action = &f->rule->action;
+ struct ocelot *ocelot = priv->port.ocelot;
+ struct ocelot_port_private *other_priv;
+ const struct flow_action_entry *a;
+ int err;
+
+ if (f->common.protocol != htons(ETH_P_ALL))
+ return -EOPNOTSUPP;
+
+ if (!flow_action_basic_hw_stats_check(action, extack))
+ return -EOPNOTSUPP;
+
+ a = &action->entries[0];
+ if (!a->dev)
+ return -EINVAL;
+
+ if (!ocelot_netdevice_dev_check(a->dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Destination not an ocelot port");
+ return -EOPNOTSUPP;
+ }
+
+ other_priv = netdev_priv(a->dev);
+
+ err = ocelot_port_mirror_add(ocelot, priv->port.index,
+ other_priv->port.index, ingress, extack);
+ if (err)
+ return err;
+
+ if (ingress)
+ priv->tc.ingress_mirred_id = f->cookie;
+ else
+ priv->tc.egress_mirred_id = f->cookie;
+ priv->tc.offload_cnt++;
+
+ return 0;
+}
+
+static int ocelot_del_tc_cls_matchall_police(struct ocelot_port_private *priv,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+ int err;
+
+ err = ocelot_port_policer_del(ocelot, port);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Could not delete policer");
+ return err;
+ }
+
+ priv->tc.police_id = 0;
+ priv->tc.offload_cnt--;
+
+ return 0;
+}
+
+static int ocelot_del_tc_cls_matchall_mirred(struct ocelot_port_private *priv,
+ bool ingress,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ ocelot_port_mirror_del(ocelot, port, ingress);
+
+ if (ingress)
+ priv->tc.ingress_mirred_id = 0;
+ else
+ priv->tc.egress_mirred_id = 0;
+ priv->tc.offload_cnt--;
+
+ return 0;
+}
+
+static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
+ struct tc_cls_matchall_offload *f,
+ bool ingress)
+{
+ struct netlink_ext_ack *extack = f->common.extack;
+ struct flow_action_entry *action;
+
+ switch (f->command) {
+ case TC_CLSMATCHALL_REPLACE:
+ if (!flow_offload_has_one_action(&f->rule->action)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Only one action is supported");
+ return -EOPNOTSUPP;
+ }
+
+ if (priv->tc.block_shared) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Matchall offloads not supported on shared blocks");
+ return -EOPNOTSUPP;
+ }
+
+ action = &f->rule->action.entries[0];
+
+ switch (action->id) {
+ case FLOW_ACTION_POLICE:
+ return ocelot_setup_tc_cls_matchall_police(priv, f,
+ ingress,
+ extack);
+ break;
+ case FLOW_ACTION_MIRRED:
+ return ocelot_setup_tc_cls_matchall_mirred(priv, f,
+ ingress,
+ extack);
+ default:
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
+ return -EOPNOTSUPP;
+ }
+
+ break;
+ case TC_CLSMATCHALL_DESTROY:
+ action = &f->rule->action.entries[0];
+
+ if (f->cookie == priv->tc.police_id)
+ return ocelot_del_tc_cls_matchall_police(priv, extack);
+ else if (f->cookie == priv->tc.ingress_mirred_id ||
+ f->cookie == priv->tc.egress_mirred_id)
+ return ocelot_del_tc_cls_matchall_mirred(priv, ingress,
+ extack);
+ else
+ return -ENOENT;
+
+ break;
+ case TC_CLSMATCHALL_STATS:
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
+ void *type_data,
+ void *cb_priv, bool ingress)
+{
+ struct ocelot_port_private *priv = cb_priv;
+
+ if (!tc_cls_can_offload_and_chain0(priv->dev, type_data))
+ return -EOPNOTSUPP;
+
+ switch (type) {
+ case TC_SETUP_CLSMATCHALL:
+ return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
+ case TC_SETUP_CLSFLOWER:
+ return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type,
+ void *type_data,
+ void *cb_priv)
+{
+ return ocelot_setup_tc_block_cb(type, type_data,
+ cb_priv, true);
+}
+
+static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type,
+ void *type_data,
+ void *cb_priv)
+{
+ return ocelot_setup_tc_block_cb(type, type_data,
+ cb_priv, false);
+}
+
+static LIST_HEAD(ocelot_block_cb_list);
+
+static int ocelot_setup_tc_block(struct ocelot_port_private *priv,
+ struct flow_block_offload *f)
+{
+ struct flow_block_cb *block_cb;
+ flow_setup_cb_t *cb;
+
+ if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
+ cb = ocelot_setup_tc_block_cb_ig;
+ priv->tc.block_shared = f->block_shared;
+ } else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
+ cb = ocelot_setup_tc_block_cb_eg;
+ } else {
+ return -EOPNOTSUPP;
+ }
+
+ f->driver_block_list = &ocelot_block_cb_list;
+
+ switch (f->command) {
+ case FLOW_BLOCK_BIND:
+ if (flow_block_cb_is_busy(cb, priv, &ocelot_block_cb_list))
+ return -EBUSY;
+
+ block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
+ if (IS_ERR(block_cb))
+ return PTR_ERR(block_cb);
+
+ flow_block_cb_add(block_cb, f);
+ list_add_tail(&block_cb->driver_list, f->driver_block_list);
+ return 0;
+ case FLOW_BLOCK_UNBIND:
+ block_cb = flow_block_cb_lookup(f->block, cb, priv);
+ if (!block_cb)
+ return -ENOENT;
+
+ flow_block_cb_remove(block_cb, f);
+ list_del(&block_cb->driver_list);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ void *type_data)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+
+ switch (type) {
+ case TC_SETUP_BLOCK:
+ return ocelot_setup_tc_block(priv, type_data);
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
+ bool untagged)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+ int ret;
+
+ ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged);
+ if (ret)
+ return ret;
+
+ /* Add the port MAC address to with the right VLAN information */
+ ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid,
+ ENTRYTYPE_LOCKED);
+
+ return 0;
+}
+
+static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+ int ret;
+
+ /* 8021q removes VID 0 on module unload for all interfaces
+ * with VLAN filtering feature. We need to keep it to receive
+ * untagged traffic.
+ */
+ if (vid == OCELOT_STANDALONE_PVID)
+ return 0;
+
+ ret = ocelot_vlan_del(ocelot, port, vid);
+ if (ret)
+ return ret;
+
+ /* Del the port MAC address to with the right VLAN information */
+ ocelot_mact_forget(ocelot, dev->dev_addr, vid);
+
+ return 0;
+}
+
+static int ocelot_port_open(struct net_device *dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+
+ phylink_start(priv->phylink);
+
+ return 0;
+}
+
+static int ocelot_port_stop(struct net_device *dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+
+ phylink_stop(priv->phylink);
+
+ return 0;
+}
+
+static netdev_tx_t ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+ u32 rew_op = 0;
+
+ if (!static_branch_unlikely(&ocelot_fdma_enabled) &&
+ !ocelot_can_inject(ocelot, 0))
+ return NETDEV_TX_BUSY;
+
+ /* Check if timestamping is needed */
+ if (ocelot->ptp && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
+ struct sk_buff *clone = NULL;
+
+ if (ocelot_port_txtstamp_request(ocelot, port, skb, &clone)) {
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
+ if (clone)
+ OCELOT_SKB_CB(skb)->clone = clone;
+
+ rew_op = ocelot_ptp_rew_op(skb);
+ }
+
+ if (static_branch_unlikely(&ocelot_fdma_enabled)) {
+ ocelot_fdma_inject_frame(ocelot, port, rew_op, skb, dev);
+ } else {
+ ocelot_port_inject_frame(ocelot, port, 0, rew_op, skb);
+
+ consume_skb(skb);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+enum ocelot_action_type {
+ OCELOT_MACT_LEARN,
+ OCELOT_MACT_FORGET,
+};
+
+struct ocelot_mact_work_ctx {
+ struct work_struct work;
+ struct ocelot *ocelot;
+ enum ocelot_action_type type;
+ union {
+ /* OCELOT_MACT_LEARN */
+ struct {
+ unsigned char addr[ETH_ALEN];
+ u16 vid;
+ enum macaccess_entry_type entry_type;
+ int pgid;
+ } learn;
+ /* OCELOT_MACT_FORGET */
+ struct {
+ unsigned char addr[ETH_ALEN];
+ u16 vid;
+ } forget;
+ };
+};
+
+#define ocelot_work_to_ctx(x) \
+ container_of((x), struct ocelot_mact_work_ctx, work)
+
+static void ocelot_mact_work(struct work_struct *work)
+{
+ struct ocelot_mact_work_ctx *w = ocelot_work_to_ctx(work);
+ struct ocelot *ocelot = w->ocelot;
+
+ switch (w->type) {
+ case OCELOT_MACT_LEARN:
+ ocelot_mact_learn(ocelot, w->learn.pgid, w->learn.addr,
+ w->learn.vid, w->learn.entry_type);
+ break;
+ case OCELOT_MACT_FORGET:
+ ocelot_mact_forget(ocelot, w->forget.addr, w->forget.vid);
+ break;
+ default:
+ break;
+ }
+
+ kfree(w);
+}
+
+static int ocelot_enqueue_mact_action(struct ocelot *ocelot,
+ const struct ocelot_mact_work_ctx *ctx)
+{
+ struct ocelot_mact_work_ctx *w = kmemdup(ctx, sizeof(*w), GFP_ATOMIC);
+
+ if (!w)
+ return -ENOMEM;
+
+ w->ocelot = ocelot;
+ INIT_WORK(&w->work, ocelot_mact_work);
+ queue_work(ocelot->owq, &w->work);
+
+ return 0;
+}
+
+static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ struct ocelot_mact_work_ctx w;
+
+ ether_addr_copy(w.forget.addr, addr);
+ w.forget.vid = OCELOT_STANDALONE_PVID;
+ w.type = OCELOT_MACT_FORGET;
+
+ return ocelot_enqueue_mact_action(ocelot, &w);
+}
+
+static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ struct ocelot_mact_work_ctx w;
+
+ ether_addr_copy(w.learn.addr, addr);
+ w.learn.vid = OCELOT_STANDALONE_PVID;
+ w.learn.pgid = PGID_CPU;
+ w.learn.entry_type = ENTRYTYPE_LOCKED;
+ w.type = OCELOT_MACT_LEARN;
+
+ return ocelot_enqueue_mact_action(ocelot, &w);
+}
+
+static void ocelot_set_rx_mode(struct net_device *dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ u32 val;
+ int i;
+
+ /* This doesn't handle promiscuous mode because the bridge core is
+ * setting IFF_PROMISC on all slave interfaces and all frames would be
+ * forwarded to the CPU port.
+ */
+ val = GENMASK(ocelot->num_phys_ports - 1, 0);
+ for_each_nonreserved_multicast_dest_pgid(ocelot, i)
+ ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
+
+ __dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
+}
+
+static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ const struct sockaddr *addr = p;
+
+ /* Learn the new net device MAC address in the mac table. */
+ ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data,
+ OCELOT_STANDALONE_PVID, ENTRYTYPE_LOCKED);
+ /* Then forget the previous one. */
+ ocelot_mact_forget(ocelot, dev->dev_addr, OCELOT_STANDALONE_PVID);
+
+ eth_hw_addr_set(dev, addr->sa_data);
+ return 0;
+}
+
+static void ocelot_get_stats64(struct net_device *dev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ return ocelot_port_get_stats64(ocelot, port, stats);
+}
+
+static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr,
+ u16 vid, u16 flags,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_fdb_add(ocelot, port, addr, vid, ocelot_port->bridge);
+}
+
+static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_fdb_del(ocelot, port, addr, vid, ocelot_port->bridge);
+}
+
+static int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
+ bool is_static, void *data)
+{
+ struct ocelot_dump_ctx *dump = data;
+ u32 portid = NETLINK_CB(dump->cb->skb).portid;
+ u32 seq = dump->cb->nlh->nlmsg_seq;
+ struct nlmsghdr *nlh;
+ struct ndmsg *ndm;
+
+ if (dump->idx < dump->cb->args[2])
+ goto skip;
+
+ nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
+ sizeof(*ndm), NLM_F_MULTI);
+ if (!nlh)
+ return -EMSGSIZE;
+
+ ndm = nlmsg_data(nlh);
+ ndm->ndm_family = AF_BRIDGE;
+ ndm->ndm_pad1 = 0;
+ ndm->ndm_pad2 = 0;
+ ndm->ndm_flags = NTF_SELF;
+ ndm->ndm_type = 0;
+ ndm->ndm_ifindex = dump->dev->ifindex;
+ ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
+
+ if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
+ goto nla_put_failure;
+
+ if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
+ goto nla_put_failure;
+
+ nlmsg_end(dump->skb, nlh);
+
+skip:
+ dump->idx++;
+ return 0;
+
+nla_put_failure:
+ nlmsg_cancel(dump->skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int ocelot_port_fdb_dump(struct sk_buff *skb,
+ struct netlink_callback *cb,
+ struct net_device *dev,
+ struct net_device *filter_dev, int *idx)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ struct ocelot_dump_ctx dump = {
+ .dev = dev,
+ .skb = skb,
+ .cb = cb,
+ .idx = *idx,
+ };
+ int port = priv->port.index;
+ int ret;
+
+ ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
+
+ *idx = dump.idx;
+
+ return ret;
+}
+
+static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
+ u16 vid)
+{
+ return ocelot_vlan_vid_add(dev, vid, false, false);
+}
+
+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->port.index;
+
+ 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_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->port.index;
+
+ /* 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 int ocelot_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+
+ ocelot_port_set_maxlen(ocelot, priv->port.index, new_mtu);
+ WRITE_ONCE(dev->mtu, new_mtu);
+
+ return 0;
+}
+
+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_change_mtu = ocelot_change_mtu,
+ .ndo_set_rx_mode = ocelot_set_rx_mode,
+ .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_setup_tc = ocelot_setup_tc,
+ .ndo_eth_ioctl = ocelot_ioctl,
+ .ndo_get_devlink_port = ocelot_get_devlink_port,
+};
+
+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->port.index;
+}
+
+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->port.index;
+
+ 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->port.index;
+
+ 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->port.index;
+
+ 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->port.index;
+
+ 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,
+ u8 state)
+{
+ 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 void *ctx,
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+ int err = 0;
+
+ if (ctx && ctx != priv)
+ return 0;
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ ocelot_port_attr_stp_state_set(ocelot, port, 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,
+ extack);
+ break;
+ case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
+ ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+ err = ocelot_port_pre_bridge_flags(ocelot, port,
+ attr->u.brport_flags);
+ break;
+ case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ ocelot_port_bridge_flags(ocelot, port, attr->u.brport_flags);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int ocelot_vlan_vid_prepare(struct net_device *dev, u16 vid, bool pvid,
+ bool untagged, struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_vlan_prepare(ocelot, port, vid, pvid, untagged, extack);
+}
+
+static int ocelot_port_obj_add_vlan(struct net_device *dev,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct netlink_ext_ack *extack)
+{
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ int ret;
+
+ ret = ocelot_vlan_vid_prepare(dev, vlan->vid, pvid, untagged, extack);
+ if (ret)
+ return ret;
+
+ return ocelot_vlan_vid_add(dev, vlan->vid, pvid, untagged);
+}
+
+static int ocelot_port_obj_add_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->port.index;
+
+ return ocelot_port_mdb_add(ocelot, port, mdb, ocelot_port->bridge);
+}
+
+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->port.index;
+
+ return ocelot_port_mdb_del(ocelot, port, mdb, ocelot_port->bridge);
+}
+
+static int ocelot_port_obj_mrp_add(struct net_device *dev,
+ const struct switchdev_obj_mrp *mrp)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_mrp_add(ocelot, port, mrp);
+}
+
+static int ocelot_port_obj_mrp_del(struct net_device *dev,
+ const struct switchdev_obj_mrp *mrp)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_mrp_del(ocelot, port, mrp);
+}
+
+static int
+ocelot_port_obj_mrp_add_ring_role(struct net_device *dev,
+ const struct switchdev_obj_ring_role_mrp *mrp)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_mrp_add_ring_role(ocelot, port, mrp);
+}
+
+static int
+ocelot_port_obj_mrp_del_ring_role(struct net_device *dev,
+ const struct switchdev_obj_ring_role_mrp *mrp)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ return ocelot_mrp_del_ring_role(ocelot, port, mrp);
+}
+
+static int ocelot_port_obj_add(struct net_device *dev, const void *ctx,
+ const struct switchdev_obj *obj,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ int ret = 0;
+
+ if (ctx && ctx != priv)
+ return 0;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ ret = ocelot_port_obj_add_vlan(dev,
+ SWITCHDEV_OBJ_PORT_VLAN(obj),
+ extack);
+ break;
+ case SWITCHDEV_OBJ_ID_PORT_MDB:
+ ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+ break;
+ case SWITCHDEV_OBJ_ID_MRP:
+ ret = ocelot_port_obj_mrp_add(dev, SWITCHDEV_OBJ_MRP(obj));
+ break;
+ case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
+ ret = ocelot_port_obj_mrp_add_ring_role(dev,
+ SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static int ocelot_port_obj_del(struct net_device *dev, const void *ctx,
+ const struct switchdev_obj *obj)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ int ret = 0;
+
+ if (ctx && ctx != priv)
+ return 0;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ ret = ocelot_vlan_vid_del(dev,
+ SWITCHDEV_OBJ_PORT_VLAN(obj)->vid);
+ break;
+ case SWITCHDEV_OBJ_ID_PORT_MDB:
+ ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+ break;
+ case SWITCHDEV_OBJ_ID_MRP:
+ ret = ocelot_port_obj_mrp_del(dev, SWITCHDEV_OBJ_MRP(obj));
+ break;
+ case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
+ ret = ocelot_port_obj_mrp_del_ring_role(dev,
+ SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static void ocelot_inherit_brport_flags(struct ocelot *ocelot, int port,
+ struct net_device *brport_dev)
+{
+ struct switchdev_brport_flags flags = {0};
+ int flag;
+
+ flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
+
+ for_each_set_bit(flag, &flags.mask, 32)
+ if (br_port_flag_is_set(brport_dev, BIT(flag)))
+ flags.val |= BIT(flag);
+
+ ocelot_port_bridge_flags(ocelot, port, flags);
+}
+
+static void ocelot_clear_brport_flags(struct ocelot *ocelot, int port)
+{
+ struct switchdev_brport_flags flags;
+
+ flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
+ flags.val = flags.mask & ~BR_LEARNING;
+
+ ocelot_port_bridge_flags(ocelot, port, flags);
+}
+
+static int ocelot_switchdev_sync(struct ocelot *ocelot, int port,
+ struct net_device *brport_dev,
+ struct net_device *bridge_dev,
+ struct netlink_ext_ack *extack)
+{
+ clock_t ageing_time;
+ u8 stp_state;
+
+ ocelot_inherit_brport_flags(ocelot, port, brport_dev);
+
+ stp_state = br_port_get_stp_state(brport_dev);
+ ocelot_bridge_stp_state_set(ocelot, port, stp_state);
+
+ ageing_time = br_get_ageing_time(bridge_dev);
+ ocelot_port_attr_ageing_set(ocelot, port, ageing_time);
+
+ return ocelot_port_vlan_filtering(ocelot, port,
+ br_vlan_enabled(bridge_dev),
+ extack);
+}
+
+static int ocelot_switchdev_unsync(struct ocelot *ocelot, int port)
+{
+ int err;
+
+ err = ocelot_port_vlan_filtering(ocelot, port, false, NULL);
+ if (err)
+ return err;
+
+ ocelot_clear_brport_flags(ocelot, port);
+
+ ocelot_bridge_stp_state_set(ocelot, port, BR_STATE_FORWARDING);
+
+ return 0;
+}
+
+static int ocelot_bridge_num_get(struct ocelot *ocelot,
+ const struct net_device *bridge_dev)
+{
+ int bridge_num = ocelot_bridge_num_find(ocelot, bridge_dev);
+
+ if (bridge_num < 0) {
+ /* First port that offloads this bridge */
+ bridge_num = find_first_zero_bit(&ocelot->bridges,
+ ocelot->num_phys_ports);
+
+ set_bit(bridge_num, &ocelot->bridges);
+ }
+
+ return bridge_num;
+}
+
+static void ocelot_bridge_num_put(struct ocelot *ocelot,
+ const struct net_device *bridge_dev,
+ int bridge_num)
+{
+ /* Check if the bridge is still in use, otherwise it is time
+ * to clean it up so we can reuse this bridge_num later.
+ */
+ if (!ocelot_bridge_num_find(ocelot, bridge_dev))
+ clear_bit(bridge_num, &ocelot->bridges);
+}
+
+static int ocelot_netdevice_bridge_join(struct net_device *dev,
+ struct net_device *brport_dev,
+ struct net_device *bridge,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+ int bridge_num, err;
+
+ bridge_num = ocelot_bridge_num_get(ocelot, bridge);
+
+ err = ocelot_port_bridge_join(ocelot, port, bridge, bridge_num,
+ extack);
+ if (err)
+ goto err_join;
+
+ err = switchdev_bridge_port_offload(brport_dev, dev, priv,
+ &ocelot_switchdev_nb,
+ &ocelot_switchdev_blocking_nb,
+ false, extack);
+ if (err)
+ goto err_switchdev_offload;
+
+ err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge, extack);
+ if (err)
+ goto err_switchdev_sync;
+
+ return 0;
+
+err_switchdev_sync:
+ switchdev_bridge_port_unoffload(brport_dev, priv,
+ &ocelot_switchdev_nb,
+ &ocelot_switchdev_blocking_nb);
+err_switchdev_offload:
+ ocelot_port_bridge_leave(ocelot, port, bridge);
+err_join:
+ ocelot_bridge_num_put(ocelot, bridge, bridge_num);
+ return err;
+}
+
+static void ocelot_netdevice_pre_bridge_leave(struct net_device *dev,
+ struct net_device *brport_dev)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+
+ switchdev_bridge_port_unoffload(brport_dev, priv,
+ &ocelot_switchdev_nb,
+ &ocelot_switchdev_blocking_nb);
+}
+
+static int ocelot_netdevice_bridge_leave(struct net_device *dev,
+ struct net_device *brport_dev,
+ struct net_device *bridge)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int bridge_num = ocelot_port->bridge_num;
+ int port = priv->port.index;
+ int err;
+
+ err = ocelot_switchdev_unsync(ocelot, port);
+ if (err)
+ return err;
+
+ ocelot_port_bridge_leave(ocelot, port, bridge);
+ ocelot_bridge_num_put(ocelot, bridge, bridge_num);
+
+ return 0;
+}
+
+static int ocelot_netdevice_lag_join(struct net_device *dev,
+ struct net_device *bond,
+ struct netdev_lag_upper_info *info,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ struct net_device *bridge_dev;
+ int port = priv->port.index;
+ int err;
+
+ err = ocelot_port_lag_join(ocelot, port, bond, info, extack);
+ if (err == -EOPNOTSUPP)
+ /* Offloading not supported, fall back to software LAG */
+ return 0;
+
+ bridge_dev = netdev_master_upper_dev_get(bond);
+ if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+ return 0;
+
+ err = ocelot_netdevice_bridge_join(dev, bond, bridge_dev, extack);
+ if (err)
+ goto err_bridge_join;
+
+ return 0;
+
+err_bridge_join:
+ ocelot_port_lag_leave(ocelot, port, bond);
+ return err;
+}
+
+static void ocelot_netdevice_pre_lag_leave(struct net_device *dev,
+ struct net_device *bond)
+{
+ struct net_device *bridge_dev;
+
+ bridge_dev = netdev_master_upper_dev_get(bond);
+ if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+ return;
+
+ ocelot_netdevice_pre_bridge_leave(dev, bond);
+}
+
+static int ocelot_netdevice_lag_leave(struct net_device *dev,
+ struct net_device *bond)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ struct net_device *bridge_dev;
+ int port = priv->port.index;
+
+ ocelot_port_lag_leave(ocelot, port, bond);
+
+ bridge_dev = netdev_master_upper_dev_get(bond);
+ if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+ return 0;
+
+ return ocelot_netdevice_bridge_leave(dev, bond, bridge_dev);
+}
+
+static int ocelot_netdevice_changeupper(struct net_device *dev,
+ struct net_device *brport_dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct netlink_ext_ack *extack;
+ int err = 0;
+
+ extack = netdev_notifier_info_to_extack(&info->info);
+
+ if (netif_is_bridge_master(info->upper_dev)) {
+ if (info->linking)
+ err = ocelot_netdevice_bridge_join(dev, brport_dev,
+ info->upper_dev,
+ extack);
+ else
+ err = ocelot_netdevice_bridge_leave(dev, brport_dev,
+ info->upper_dev);
+ }
+ if (netif_is_lag_master(info->upper_dev)) {
+ if (info->linking)
+ err = ocelot_netdevice_lag_join(dev, info->upper_dev,
+ info->upper_info, extack);
+ else
+ ocelot_netdevice_lag_leave(dev, info->upper_dev);
+ }
+
+ return notifier_from_errno(err);
+}
+
+/* Treat CHANGEUPPER events on an offloaded LAG as individual CHANGEUPPER
+ * events for the lower physical ports of the LAG.
+ * If the LAG upper isn't offloaded, ignore its CHANGEUPPER events.
+ * In case the LAG joined a bridge, notify that we are offloading it and can do
+ * forwarding in hardware towards it.
+ */
+static int
+ocelot_netdevice_lag_changeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct net_device *lower;
+ struct list_head *iter;
+ int err = NOTIFY_DONE;
+
+ netdev_for_each_lower_dev(dev, lower, iter) {
+ struct ocelot_port_private *priv = netdev_priv(lower);
+ struct ocelot_port *ocelot_port = &priv->port;
+
+ if (ocelot_port->bond != dev)
+ return NOTIFY_OK;
+
+ err = ocelot_netdevice_changeupper(lower, dev, info);
+ if (err)
+ return notifier_from_errno(err);
+ }
+
+ return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_prechangeupper(struct net_device *dev,
+ struct net_device *brport_dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ if (netif_is_bridge_master(info->upper_dev) && !info->linking)
+ ocelot_netdevice_pre_bridge_leave(dev, brport_dev);
+
+ if (netif_is_lag_master(info->upper_dev) && !info->linking)
+ ocelot_netdevice_pre_lag_leave(dev, info->upper_dev);
+
+ return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_lag_prechangeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct net_device *lower;
+ struct list_head *iter;
+ int err = NOTIFY_DONE;
+
+ netdev_for_each_lower_dev(dev, lower, iter) {
+ struct ocelot_port_private *priv = netdev_priv(lower);
+ struct ocelot_port *ocelot_port = &priv->port;
+
+ if (ocelot_port->bond != dev)
+ return NOTIFY_OK;
+
+ err = ocelot_netdevice_prechangeupper(dev, lower, info);
+ if (err)
+ return err;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_changelowerstate(struct net_device *dev,
+ struct netdev_lag_lower_state_info *info)
+{
+ struct ocelot_port_private *priv = netdev_priv(dev);
+ bool is_active = info->link_up && info->tx_enabled;
+ struct ocelot_port *ocelot_port = &priv->port;
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ int port = priv->port.index;
+
+ if (!ocelot_port->bond)
+ return NOTIFY_DONE;
+
+ if (ocelot_port->lag_tx_active == is_active)
+ return NOTIFY_DONE;
+
+ ocelot_port_lag_change(ocelot, port, is_active);
+
+ return NOTIFY_OK;
+}
+
+static int ocelot_netdevice_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+ switch (event) {
+ case NETDEV_PRECHANGEUPPER: {
+ struct netdev_notifier_changeupper_info *info = ptr;
+
+ if (ocelot_netdevice_dev_check(dev))
+ return ocelot_netdevice_prechangeupper(dev, dev, info);
+
+ if (netif_is_lag_master(dev))
+ return ocelot_netdevice_lag_prechangeupper(dev, info);
+
+ break;
+ }
+ case NETDEV_CHANGEUPPER: {
+ struct netdev_notifier_changeupper_info *info = ptr;
+
+ if (ocelot_netdevice_dev_check(dev))
+ return ocelot_netdevice_changeupper(dev, dev, info);
+
+ if (netif_is_lag_master(dev))
+ return ocelot_netdevice_lag_changeupper(dev, info);
+
+ break;
+ }
+ case NETDEV_CHANGELOWERSTATE: {
+ struct netdev_notifier_changelowerstate_info *info = ptr;
+
+ if (!ocelot_netdevice_dev_check(dev))
+ break;
+
+ return ocelot_netdevice_changelowerstate(dev,
+ info->lower_state_info);
+ }
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+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,
+};
+
+static void vsc7514_phylink_mac_config(struct phylink_config *config,
+ unsigned int link_an_mode,
+ const struct phylink_link_state *state)
+{
+ struct net_device *ndev = to_net_dev(config->dev);
+ struct ocelot_port_private *priv = netdev_priv(ndev);
+ struct ocelot_port *ocelot_port = &priv->port;
+
+ /* Disable HDX fast control */
+ ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS,
+ DEV_PORT_MISC);
+
+ /* SGMII only for now */
+ ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA,
+ PCS1G_MODE_CFG);
+ ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG);
+
+ /* Enable PCS */
+ ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG);
+
+ /* No aneg on SGMII */
+ ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG);
+
+ /* No loopback */
+ ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG);
+}
+
+static void vsc7514_phylink_mac_link_down(struct phylink_config *config,
+ unsigned int link_an_mode,
+ phy_interface_t interface)
+{
+ struct net_device *ndev = to_net_dev(config->dev);
+ struct ocelot_port_private *priv = netdev_priv(ndev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ ocelot_phylink_mac_link_down(ocelot, port, link_an_mode, interface,
+ OCELOT_MAC_QUIRKS);
+}
+
+static void vsc7514_phylink_mac_link_up(struct phylink_config *config,
+ struct phy_device *phydev,
+ unsigned int link_an_mode,
+ phy_interface_t interface,
+ int speed, int duplex,
+ bool tx_pause, bool rx_pause)
+{
+ struct net_device *ndev = to_net_dev(config->dev);
+ struct ocelot_port_private *priv = netdev_priv(ndev);
+ struct ocelot *ocelot = priv->port.ocelot;
+ int port = priv->port.index;
+
+ ocelot_phylink_mac_link_up(ocelot, port, phydev, link_an_mode,
+ interface, speed, duplex,
+ tx_pause, rx_pause, OCELOT_MAC_QUIRKS);
+}
+
+static const struct phylink_mac_ops ocelot_phylink_ops = {
+ .validate = phylink_generic_validate,
+ .mac_config = vsc7514_phylink_mac_config,
+ .mac_link_down = vsc7514_phylink_mac_link_down,
+ .mac_link_up = vsc7514_phylink_mac_link_up,
+};
+
+static int ocelot_port_phylink_create(struct ocelot *ocelot, int port,
+ struct device_node *portnp)
+{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+ struct ocelot_port_private *priv;
+ struct device *dev = ocelot->dev;
+ phy_interface_t phy_mode;
+ struct phylink *phylink;
+ int err;
+
+ of_get_phy_mode(portnp, &phy_mode);
+ /* DT bindings of internal PHY ports are broken and don't
+ * specify a phy-mode
+ */
+ if (phy_mode == PHY_INTERFACE_MODE_NA)
+ phy_mode = PHY_INTERFACE_MODE_INTERNAL;
+
+ if (phy_mode != PHY_INTERFACE_MODE_SGMII &&
+ phy_mode != PHY_INTERFACE_MODE_QSGMII &&
+ phy_mode != PHY_INTERFACE_MODE_INTERNAL) {
+ dev_err(dev, "unsupported phy mode %s for port %d\n",
+ phy_modes(phy_mode), port);
+ return -EINVAL;
+ }
+
+ /* Ensure clock signals and speed are set on all QSGMII links */
+ if (phy_mode == PHY_INTERFACE_MODE_QSGMII)
+ ocelot_port_rmwl(ocelot_port, 0,
+ DEV_CLOCK_CFG_MAC_TX_RST |
+ DEV_CLOCK_CFG_MAC_RX_RST,
+ DEV_CLOCK_CFG);
+
+ ocelot_port->phy_mode = phy_mode;
+
+ if (phy_mode != PHY_INTERFACE_MODE_INTERNAL) {
+ struct phy *serdes = of_phy_get(portnp, NULL);
+
+ if (IS_ERR(serdes)) {
+ err = PTR_ERR(serdes);
+ dev_err_probe(dev, err,
+ "missing SerDes phys for port %d\n",
+ port);
+ return err;
+ }
+
+ err = phy_set_mode_ext(serdes, PHY_MODE_ETHERNET, phy_mode);
+ of_phy_put(serdes);
+ if (err) {
+ dev_err(dev, "Could not SerDes mode on port %d: %pe\n",
+ port, ERR_PTR(err));
+ return err;
+ }
+ }
+
+ priv = container_of(ocelot_port, struct ocelot_port_private, port);
+
+ priv->phylink_config.dev = &priv->dev->dev;
+ priv->phylink_config.type = PHYLINK_NETDEV;
+ priv->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
+ MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD;
+
+ __set_bit(ocelot_port->phy_mode,
+ priv->phylink_config.supported_interfaces);
+
+ phylink = phylink_create(&priv->phylink_config,
+ of_fwnode_handle(portnp),
+ phy_mode, &ocelot_phylink_ops);
+ if (IS_ERR(phylink)) {
+ err = PTR_ERR(phylink);
+ dev_err(dev, "Could not create phylink (%pe)\n", phylink);
+ return err;
+ }
+
+ priv->phylink = phylink;
+
+ err = phylink_of_phy_connect(phylink, portnp, 0);
+ if (err) {
+ dev_err(dev, "Could not connect to PHY: %pe\n", ERR_PTR(err));
+ phylink_destroy(phylink);
+ priv->phylink = NULL;
+ return err;
+ }
+
+ return 0;
+}
+
+int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
+ struct device_node *portnp)
+{
+ 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;
+ ocelot_port = &priv->port;
+ ocelot_port->ocelot = ocelot;
+ ocelot_port->index = port;
+ ocelot_port->target = target;
+ ocelot->ports[port] = ocelot_port;
+
+ dev->netdev_ops = &ocelot_port_netdev_ops;
+ dev->ethtool_ops = &ocelot_ethtool_ops;
+ dev->max_mtu = OCELOT_JUMBO_MTU;
+
+ 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;
+
+ err = of_get_ethdev_address(portnp, dev);
+ if (err)
+ eth_hw_addr_gen(dev, ocelot->base_mac, port);
+
+ ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr,
+ OCELOT_STANDALONE_PVID, ENTRYTYPE_LOCKED);
+
+ ocelot_init_port(ocelot, port);
+
+ err = ocelot_port_phylink_create(ocelot, port, portnp);
+ if (err)
+ goto out;
+
+ if (ocelot->fdma)
+ ocelot_fdma_netdev_init(ocelot, dev);
+
+ err = register_netdev(dev);
+ if (err) {
+ dev_err(ocelot->dev, "register_netdev failed\n");
+ goto out_fdma_deinit;
+ }
+
+ return 0;
+
+out_fdma_deinit:
+ if (ocelot->fdma)
+ ocelot_fdma_netdev_deinit(ocelot, dev);
+out:
+ ocelot->ports[port] = NULL;
+ free_netdev(dev);
+
+ return err;
+}
+
+void ocelot_release_port(struct ocelot_port *ocelot_port)
+{
+ struct ocelot_port_private *priv = container_of(ocelot_port,
+ struct ocelot_port_private,
+ port);
+ struct ocelot *ocelot = ocelot_port->ocelot;
+ struct ocelot_fdma *fdma = ocelot->fdma;
+
+ unregister_netdev(priv->dev);
+
+ if (fdma)
+ ocelot_fdma_netdev_deinit(ocelot, priv->dev);
+
+ if (priv->phylink) {
+ rtnl_lock();
+ phylink_disconnect_phy(priv->phylink);
+ rtnl_unlock();
+
+ phylink_destroy(priv->phylink);
+ }
+
+ free_netdev(priv->dev);
+}