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OpenCloudOS-Kernel/drivers/net/ethernet/mscc/ocelot_net.c

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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Microsemi Ocelot Switch driver
*
* Copyright (c) 2017, 2019 Microsemi Corporation
*/
#include <linux/if_bridge.h>
#include "ocelot.h"
#include "ocelot_vcap.h"
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->chip_port;
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(struct ocelot_port_private *priv,
struct tc_cls_matchall_offload *f,
bool ingress)
{
struct netlink_ext_ack *extack = f->common.extack;
struct ocelot *ocelot = priv->port.ocelot;
struct ocelot_policer pol = { 0 };
struct flow_action_entry *action;
int port = priv->chip_port;
int err;
if (!ingress) {
NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
return -EOPNOTSUPP;
}
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,
"Rate limit is not supported on shared blocks");
return -EOPNOTSUPP;
}
action = &f->rule->action.entries[0];
if (action->id != FLOW_ACTION_POLICE) {
NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
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;
}
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;
case TC_CLSMATCHALL_DESTROY:
if (priv->tc.police_id != f->cookie)
return -ENOENT;
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;
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 void ocelot_port_adjust_link(struct net_device *dev)
{
struct ocelot_port_private *priv = netdev_priv(dev);
struct ocelot *ocelot = priv->port.ocelot;
int port = priv->chip_port;
ocelot_adjust_link(ocelot, port, dev->phydev);
}
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->chip_port;
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->chip_port;
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 == 0)
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);
struct ocelot_port *ocelot_port = &priv->port;
struct ocelot *ocelot = ocelot_port->ocelot;
int port = priv->chip_port;
int err;
if (priv->serdes) {
err = phy_set_mode_ext(priv->serdes, PHY_MODE_ETHERNET,
ocelot_port->phy_mode);
if (err) {
netdev_err(dev, "Could not set mode of SerDes\n");
return err;
}
}
err = phy_connect_direct(dev, priv->phy, &ocelot_port_adjust_link,
ocelot_port->phy_mode);
if (err) {
netdev_err(dev, "Could not attach to PHY\n");
return err;
}
dev->phydev = priv->phy;
phy_attached_info(priv->phy);
phy_start(priv->phy);
ocelot_port_enable(ocelot, port, priv->phy);
return 0;
}
static int ocelot_port_stop(struct net_device *dev)
{
struct ocelot_port_private *priv = netdev_priv(dev);
struct ocelot *ocelot = priv->port.ocelot;
int port = priv->chip_port;
phy_disconnect(priv->phy);
dev->phydev = NULL;
ocelot_port_disable(ocelot, port);
return 0;
}
/* Generate the IFH for frame injection
*
* The IFH is a 128bit-value
* bit 127: bypass the analyzer processing
* bit 56-67: destination mask
* bit 28-29: pop_cnt: 3 disables all rewriting of the frame
* bit 20-27: cpu extraction queue mask
* bit 16: tag type 0: C-tag, 1: S-tag
* bit 0-11: VID
*/
static int ocelot_gen_ifh(u32 *ifh, struct frame_info *info)
{
ifh[0] = IFH_INJ_BYPASS | ((0x1ff & info->rew_op) << 21);
ifh[1] = (0xf00 & info->port) >> 8;
ifh[2] = (0xff & info->port) << 24;
ifh[3] = (info->tag_type << 16) | info->vid;
return 0;
}
static int ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ocelot_port_private *priv = netdev_priv(dev);
struct skb_shared_info *shinfo = skb_shinfo(skb);
struct ocelot_port *ocelot_port = &priv->port;
struct ocelot *ocelot = ocelot_port->ocelot;
u32 val, ifh[OCELOT_TAG_LEN / 4];
struct frame_info info = {};
u8 grp = 0; /* Send everything on CPU group 0 */
unsigned int i, count, last;
int port = priv->chip_port;
val = ocelot_read(ocelot, QS_INJ_STATUS);
if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) ||
(val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp))))
return NETDEV_TX_BUSY;
ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
info.port = BIT(port);
info.tag_type = IFH_TAG_TYPE_C;
info.vid = skb_vlan_tag_get(skb);
/* Check if timestamping is needed */
if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP) {
info.rew_op = ocelot_port->ptp_cmd;
if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP)
info.rew_op |= (ocelot_port->ts_id % 4) << 3;
}
ocelot_gen_ifh(ifh, &info);
for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]),
QS_INJ_WR, grp);
count = (skb->len + 3) / 4;
last = skb->len % 4;
for (i = 0; i < count; i++)
ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
/* Add padding */
while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
i++;
}
/* Indicate EOF and valid bytes in last word */
ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
QS_INJ_CTRL_EOF,
QS_INJ_CTRL, grp);
/* Add dummy CRC */
ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
skb_tx_timestamp(skb);
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
if (!ocelot_port_add_txtstamp_skb(ocelot_port, skb)) {
ocelot_port->ts_id++;
return NETDEV_TX_OK;
}
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
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;
return ocelot_mact_forget(ocelot, addr, ocelot_port->pvid);
}
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;
return ocelot_mact_learn(ocelot, PGID_CPU, addr, ocelot_port->pvid,
ENTRYTYPE_LOCKED);
}
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_get_phys_port_name(struct net_device *dev,
char *buf, size_t len)
{
struct ocelot_port_private *priv = netdev_priv(dev);
int port = priv->chip_port;
int ret;
ret = snprintf(buf, len, "p%d", port);
if (ret >= len)
return -EINVAL;
return 0;
}
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_port->pvid,
ENTRYTYPE_LOCKED);
/* Then forget the previous one. */
ocelot_mact_forget(ocelot, dev->dev_addr, ocelot_port->pvid);
ether_addr_copy(dev->dev_addr, 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->chip_port;
/* Configure the port to read the stats from */
ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port),
SYS_STAT_CFG);
/* Get Rx stats */
stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS);
stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) +
ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) +
ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) +
ocelot_read(ocelot, SYS_COUNT_RX_LONGS) +
ocelot_read(ocelot, SYS_COUNT_RX_64) +
ocelot_read(ocelot, SYS_COUNT_RX_65_127) +
ocelot_read(ocelot, SYS_COUNT_RX_128_255) +
ocelot_read(ocelot, SYS_COUNT_RX_256_1023) +
ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) +
ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX);
stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST);
stats->rx_dropped = dev->stats.rx_dropped;
/* Get Tx stats */
stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS);
stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) +
ocelot_read(ocelot, SYS_COUNT_TX_65_127) +
ocelot_read(ocelot, SYS_COUNT_TX_128_511) +
ocelot_read(ocelot, SYS_COUNT_TX_512_1023) +
ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) +
ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX);
stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) +
ocelot_read(ocelot, SYS_COUNT_TX_AGING);
stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION);
}
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 *ocelot = priv->port.ocelot;
int port = priv->chip_port;
return ocelot_fdb_add(ocelot, port, addr, vid);
}
static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr, u16 vid)
{
struct ocelot_port_private *priv = netdev_priv(dev);
struct ocelot *ocelot = priv->port.ocelot;
int port = priv->chip_port;
return ocelot_fdb_del(ocelot, port, addr, vid);
}
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->chip_port;
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->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,
};
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);
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;
}
/* Checks if the net_device instance given to us originate from our driver. */
static bool ocelot_netdevice_dev_check(const struct net_device *dev)
{
return dev->netdev_ops == &ocelot_port_netdev_ops;
}
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 (!ocelot_netdevice_dev_check(dev))
return 0;
if (event == NETDEV_PRECHANGEUPPER &&
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;
}
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