// SPDX-License-Identifier: GPL-2.0
|
/*
|
* DPAA2 Ethernet Switch driver
|
*
|
* Copyright 2014-2016 Freescale Semiconductor Inc.
|
* Copyright 2017-2018 NXP
|
*
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/interrupt.h>
|
#include <linux/msi.h>
|
#include <linux/kthread.h>
|
#include <linux/workqueue.h>
|
|
#include <linux/fsl/mc.h>
|
|
#include "ethsw.h"
|
|
static struct workqueue_struct *ethsw_owq;
|
|
/* Minimal supported DPSW version */
|
#define DPSW_MIN_VER_MAJOR 8
|
#define DPSW_MIN_VER_MINOR 0
|
|
#define DEFAULT_VLAN_ID 1
|
|
static int ethsw_add_vlan(struct ethsw_core *ethsw, u16 vid)
|
{
|
int err;
|
|
struct dpsw_vlan_cfg vcfg = {
|
.fdb_id = 0,
|
};
|
|
if (ethsw->vlans[vid]) {
|
dev_err(ethsw->dev, "VLAN already configured\n");
|
return -EEXIST;
|
}
|
|
err = dpsw_vlan_add(ethsw->mc_io, 0,
|
ethsw->dpsw_handle, vid, &vcfg);
|
if (err) {
|
dev_err(ethsw->dev, "dpsw_vlan_add err %d\n", err);
|
return err;
|
}
|
ethsw->vlans[vid] = ETHSW_VLAN_MEMBER;
|
|
return 0;
|
}
|
|
static int ethsw_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid)
|
{
|
struct ethsw_core *ethsw = port_priv->ethsw_data;
|
struct net_device *netdev = port_priv->netdev;
|
struct dpsw_tci_cfg tci_cfg = { 0 };
|
bool is_oper;
|
int err, ret;
|
|
err = dpsw_if_get_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
port_priv->idx, &tci_cfg);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_get_tci err %d\n", err);
|
return err;
|
}
|
|
tci_cfg.vlan_id = pvid;
|
|
/* Interface needs to be down to change PVID */
|
is_oper = netif_oper_up(netdev);
|
if (is_oper) {
|
err = dpsw_if_disable(ethsw->mc_io, 0,
|
ethsw->dpsw_handle,
|
port_priv->idx);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_disable err %d\n", err);
|
return err;
|
}
|
}
|
|
err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
port_priv->idx, &tci_cfg);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_set_tci err %d\n", err);
|
goto set_tci_error;
|
}
|
|
/* Delete previous PVID info and mark the new one */
|
port_priv->vlans[port_priv->pvid] &= ~ETHSW_VLAN_PVID;
|
port_priv->vlans[pvid] |= ETHSW_VLAN_PVID;
|
port_priv->pvid = pvid;
|
|
set_tci_error:
|
if (is_oper) {
|
ret = dpsw_if_enable(ethsw->mc_io, 0,
|
ethsw->dpsw_handle,
|
port_priv->idx);
|
if (ret) {
|
netdev_err(netdev, "dpsw_if_enable err %d\n", ret);
|
return ret;
|
}
|
}
|
|
return err;
|
}
|
|
static int ethsw_port_add_vlan(struct ethsw_port_priv *port_priv,
|
u16 vid, u16 flags)
|
{
|
struct ethsw_core *ethsw = port_priv->ethsw_data;
|
struct net_device *netdev = port_priv->netdev;
|
struct dpsw_vlan_if_cfg vcfg;
|
int err;
|
|
if (port_priv->vlans[vid]) {
|
netdev_warn(netdev, "VLAN %d already configured\n", vid);
|
return -EEXIST;
|
}
|
|
vcfg.num_ifs = 1;
|
vcfg.if_id[0] = port_priv->idx;
|
err = dpsw_vlan_add_if(ethsw->mc_io, 0, ethsw->dpsw_handle, vid, &vcfg);
|
if (err) {
|
netdev_err(netdev, "dpsw_vlan_add_if err %d\n", err);
|
return err;
|
}
|
|
port_priv->vlans[vid] = ETHSW_VLAN_MEMBER;
|
|
if (flags & BRIDGE_VLAN_INFO_UNTAGGED) {
|
err = dpsw_vlan_add_if_untagged(ethsw->mc_io, 0,
|
ethsw->dpsw_handle,
|
vid, &vcfg);
|
if (err) {
|
netdev_err(netdev,
|
"dpsw_vlan_add_if_untagged err %d\n", err);
|
return err;
|
}
|
port_priv->vlans[vid] |= ETHSW_VLAN_UNTAGGED;
|
}
|
|
if (flags & BRIDGE_VLAN_INFO_PVID) {
|
err = ethsw_port_set_pvid(port_priv, vid);
|
if (err)
|
return err;
|
}
|
|
return 0;
|
}
|
|
static int ethsw_set_learning(struct ethsw_core *ethsw, u8 flag)
|
{
|
enum dpsw_fdb_learning_mode learn_mode;
|
int err;
|
|
if (flag)
|
learn_mode = DPSW_FDB_LEARNING_MODE_HW;
|
else
|
learn_mode = DPSW_FDB_LEARNING_MODE_DIS;
|
|
err = dpsw_fdb_set_learning_mode(ethsw->mc_io, 0, ethsw->dpsw_handle, 0,
|
learn_mode);
|
if (err) {
|
dev_err(ethsw->dev, "dpsw_fdb_set_learning_mode err %d\n", err);
|
return err;
|
}
|
ethsw->learning = !!flag;
|
|
return 0;
|
}
|
|
static int ethsw_port_set_flood(struct ethsw_port_priv *port_priv, u8 flag)
|
{
|
int err;
|
|
err = dpsw_if_set_flooding(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx, flag);
|
if (err) {
|
netdev_err(port_priv->netdev,
|
"dpsw_if_set_flooding err %d\n", err);
|
return err;
|
}
|
port_priv->flood = !!flag;
|
|
return 0;
|
}
|
|
static int ethsw_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state)
|
{
|
struct dpsw_stp_cfg stp_cfg = {
|
.vlan_id = DEFAULT_VLAN_ID,
|
.state = state,
|
};
|
int err;
|
|
if (!netif_oper_up(port_priv->netdev) || state == port_priv->stp_state)
|
return 0; /* Nothing to do */
|
|
err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx, &stp_cfg);
|
if (err) {
|
netdev_err(port_priv->netdev,
|
"dpsw_if_set_stp err %d\n", err);
|
return err;
|
}
|
|
port_priv->stp_state = state;
|
|
return 0;
|
}
|
|
static int ethsw_dellink_switch(struct ethsw_core *ethsw, u16 vid)
|
{
|
struct ethsw_port_priv *ppriv_local = NULL;
|
int i, err;
|
|
if (!ethsw->vlans[vid])
|
return -ENOENT;
|
|
err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, vid);
|
if (err) {
|
dev_err(ethsw->dev, "dpsw_vlan_remove err %d\n", err);
|
return err;
|
}
|
ethsw->vlans[vid] = 0;
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
ppriv_local = ethsw->ports[i];
|
ppriv_local->vlans[vid] = 0;
|
}
|
|
return 0;
|
}
|
|
static int ethsw_port_fdb_add_uc(struct ethsw_port_priv *port_priv,
|
const unsigned char *addr)
|
{
|
struct dpsw_fdb_unicast_cfg entry = {0};
|
int err;
|
|
entry.if_egress = port_priv->idx;
|
entry.type = DPSW_FDB_ENTRY_STATIC;
|
ether_addr_copy(entry.mac_addr, addr);
|
|
err = dpsw_fdb_add_unicast(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
0, &entry);
|
if (err)
|
netdev_err(port_priv->netdev,
|
"dpsw_fdb_add_unicast err %d\n", err);
|
return err;
|
}
|
|
static int ethsw_port_fdb_del_uc(struct ethsw_port_priv *port_priv,
|
const unsigned char *addr)
|
{
|
struct dpsw_fdb_unicast_cfg entry = {0};
|
int err;
|
|
entry.if_egress = port_priv->idx;
|
entry.type = DPSW_FDB_ENTRY_STATIC;
|
ether_addr_copy(entry.mac_addr, addr);
|
|
err = dpsw_fdb_remove_unicast(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
0, &entry);
|
/* Silently discard error for calling multiple times the del command */
|
if (err && err != -ENXIO)
|
netdev_err(port_priv->netdev,
|
"dpsw_fdb_remove_unicast err %d\n", err);
|
return err;
|
}
|
|
static int ethsw_port_fdb_add_mc(struct ethsw_port_priv *port_priv,
|
const unsigned char *addr)
|
{
|
struct dpsw_fdb_multicast_cfg entry = {0};
|
int err;
|
|
ether_addr_copy(entry.mac_addr, addr);
|
entry.type = DPSW_FDB_ENTRY_STATIC;
|
entry.num_ifs = 1;
|
entry.if_id[0] = port_priv->idx;
|
|
err = dpsw_fdb_add_multicast(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
0, &entry);
|
/* Silently discard error for calling multiple times the add command */
|
if (err && err != -ENXIO)
|
netdev_err(port_priv->netdev, "dpsw_fdb_add_multicast err %d\n",
|
err);
|
return err;
|
}
|
|
static int ethsw_port_fdb_del_mc(struct ethsw_port_priv *port_priv,
|
const unsigned char *addr)
|
{
|
struct dpsw_fdb_multicast_cfg entry = {0};
|
int err;
|
|
ether_addr_copy(entry.mac_addr, addr);
|
entry.type = DPSW_FDB_ENTRY_STATIC;
|
entry.num_ifs = 1;
|
entry.if_id[0] = port_priv->idx;
|
|
err = dpsw_fdb_remove_multicast(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
0, &entry);
|
/* Silently discard error for calling multiple times the del command */
|
if (err && err != -ENAVAIL)
|
netdev_err(port_priv->netdev,
|
"dpsw_fdb_remove_multicast err %d\n", err);
|
return err;
|
}
|
|
static void port_get_stats(struct net_device *netdev,
|
struct rtnl_link_stats64 *stats)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
u64 tmp;
|
int err;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_ING_FRAME, &stats->rx_packets);
|
if (err)
|
goto error;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_EGR_FRAME, &stats->tx_packets);
|
if (err)
|
goto error;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_ING_BYTE, &stats->rx_bytes);
|
if (err)
|
goto error;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_EGR_BYTE, &stats->tx_bytes);
|
if (err)
|
goto error;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_ING_FRAME_DISCARD,
|
&stats->rx_dropped);
|
if (err)
|
goto error;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_ING_FLTR_FRAME,
|
&tmp);
|
if (err)
|
goto error;
|
stats->rx_dropped += tmp;
|
|
err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
DPSW_CNT_EGR_FRAME_DISCARD,
|
&stats->tx_dropped);
|
if (err)
|
goto error;
|
|
return;
|
|
error:
|
netdev_err(netdev, "dpsw_if_get_counter err %d\n", err);
|
}
|
|
static bool port_has_offload_stats(const struct net_device *netdev,
|
int attr_id)
|
{
|
return (attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT);
|
}
|
|
static int port_get_offload_stats(int attr_id,
|
const struct net_device *netdev,
|
void *sp)
|
{
|
switch (attr_id) {
|
case IFLA_OFFLOAD_XSTATS_CPU_HIT:
|
port_get_stats((struct net_device *)netdev, sp);
|
return 0;
|
}
|
|
return -EINVAL;
|
}
|
|
static int port_change_mtu(struct net_device *netdev, int mtu)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
err = dpsw_if_set_max_frame_length(port_priv->ethsw_data->mc_io,
|
0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx,
|
(u16)ETHSW_L2_MAX_FRM(mtu));
|
if (err) {
|
netdev_err(netdev,
|
"dpsw_if_set_max_frame_length() err %d\n", err);
|
return err;
|
}
|
|
netdev->mtu = mtu;
|
return 0;
|
}
|
|
static int port_carrier_state_sync(struct net_device *netdev)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
struct dpsw_link_state state;
|
int err;
|
|
err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx, &state);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err);
|
return err;
|
}
|
|
WARN_ONCE(state.up > 1, "Garbage read into link_state");
|
|
if (state.up != port_priv->link_state) {
|
if (state.up)
|
netif_carrier_on(netdev);
|
else
|
netif_carrier_off(netdev);
|
port_priv->link_state = state.up;
|
}
|
return 0;
|
}
|
|
static int port_open(struct net_device *netdev)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
/* No need to allow Tx as control interface is disabled */
|
netif_tx_stop_all_queues(netdev);
|
|
err = dpsw_if_enable(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_enable err %d\n", err);
|
return err;
|
}
|
|
/* sync carrier state */
|
err = port_carrier_state_sync(netdev);
|
if (err) {
|
netdev_err(netdev,
|
"port_carrier_state_sync err %d\n", err);
|
goto err_carrier_sync;
|
}
|
|
return 0;
|
|
err_carrier_sync:
|
dpsw_if_disable(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx);
|
return err;
|
}
|
|
static int port_stop(struct net_device *netdev)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
err = dpsw_if_disable(port_priv->ethsw_data->mc_io, 0,
|
port_priv->ethsw_data->dpsw_handle,
|
port_priv->idx);
|
if (err) {
|
netdev_err(netdev, "dpsw_if_disable err %d\n", err);
|
return err;
|
}
|
|
return 0;
|
}
|
|
static netdev_tx_t port_dropframe(struct sk_buff *skb,
|
struct net_device *netdev)
|
{
|
/* we don't support I/O for now, drop the frame */
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
}
|
|
static const struct net_device_ops ethsw_port_ops = {
|
.ndo_open = port_open,
|
.ndo_stop = port_stop,
|
|
.ndo_set_mac_address = eth_mac_addr,
|
.ndo_change_mtu = port_change_mtu,
|
.ndo_has_offload_stats = port_has_offload_stats,
|
.ndo_get_offload_stats = port_get_offload_stats,
|
|
.ndo_start_xmit = port_dropframe,
|
};
|
|
static void ethsw_links_state_update(struct ethsw_core *ethsw)
|
{
|
int i;
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
|
port_carrier_state_sync(ethsw->ports[i]->netdev);
|
}
|
|
static irqreturn_t ethsw_irq0_handler_thread(int irq_num, void *arg)
|
{
|
struct device *dev = (struct device *)arg;
|
struct ethsw_core *ethsw = dev_get_drvdata(dev);
|
|
/* Mask the events and the if_id reserved bits to be cleared on read */
|
u32 status = DPSW_IRQ_EVENT_LINK_CHANGED | 0xFFFF0000;
|
int err;
|
|
err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, &status);
|
if (err) {
|
dev_err(dev, "Can't get irq status (err %d)", err);
|
|
err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, 0xFFFFFFFF);
|
if (err)
|
dev_err(dev, "Can't clear irq status (err %d)", err);
|
goto out;
|
}
|
|
if (status & DPSW_IRQ_EVENT_LINK_CHANGED)
|
ethsw_links_state_update(ethsw);
|
|
out:
|
return IRQ_HANDLED;
|
}
|
|
static int ethsw_setup_irqs(struct fsl_mc_device *sw_dev)
|
{
|
struct device *dev = &sw_dev->dev;
|
struct ethsw_core *ethsw = dev_get_drvdata(dev);
|
u32 mask = DPSW_IRQ_EVENT_LINK_CHANGED;
|
struct fsl_mc_device_irq *irq;
|
int err;
|
|
err = fsl_mc_allocate_irqs(sw_dev);
|
if (err) {
|
dev_err(dev, "MC irqs allocation failed\n");
|
return err;
|
}
|
|
if (WARN_ON(sw_dev->obj_desc.irq_count != DPSW_IRQ_NUM)) {
|
err = -EINVAL;
|
goto free_irq;
|
}
|
|
err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, 0);
|
if (err) {
|
dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
|
goto free_irq;
|
}
|
|
irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF];
|
|
err = devm_request_threaded_irq(dev, irq->msi_desc->irq,
|
NULL,
|
ethsw_irq0_handler_thread,
|
IRQF_NO_SUSPEND | IRQF_ONESHOT,
|
dev_name(dev), dev);
|
if (err) {
|
dev_err(dev, "devm_request_threaded_irq(): %d", err);
|
goto free_irq;
|
}
|
|
err = dpsw_set_irq_mask(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, mask);
|
if (err) {
|
dev_err(dev, "dpsw_set_irq_mask(): %d", err);
|
goto free_devm_irq;
|
}
|
|
err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, 1);
|
if (err) {
|
dev_err(dev, "dpsw_set_irq_enable(): %d", err);
|
goto free_devm_irq;
|
}
|
|
return 0;
|
|
free_devm_irq:
|
devm_free_irq(dev, irq->msi_desc->irq, dev);
|
free_irq:
|
fsl_mc_free_irqs(sw_dev);
|
return err;
|
}
|
|
static void ethsw_teardown_irqs(struct fsl_mc_device *sw_dev)
|
{
|
struct device *dev = &sw_dev->dev;
|
struct ethsw_core *ethsw = dev_get_drvdata(dev);
|
int err;
|
|
err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DPSW_IRQ_INDEX_IF, 0);
|
if (err)
|
dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
|
|
fsl_mc_free_irqs(sw_dev);
|
}
|
|
static int swdev_port_attr_get(struct net_device *netdev,
|
struct switchdev_attr *attr)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
|
switch (attr->id) {
|
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
|
attr->u.ppid.id_len = 1;
|
attr->u.ppid.id[0] = port_priv->ethsw_data->dev_id;
|
break;
|
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
|
attr->u.brport_flags =
|
(port_priv->ethsw_data->learning ? BR_LEARNING : 0) |
|
(port_priv->flood ? BR_FLOOD : 0);
|
break;
|
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
|
attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD;
|
break;
|
default:
|
return -EOPNOTSUPP;
|
}
|
|
return 0;
|
}
|
|
static int port_attr_stp_state_set(struct net_device *netdev,
|
struct switchdev_trans *trans,
|
u8 state)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
|
if (switchdev_trans_ph_prepare(trans))
|
return 0;
|
|
return ethsw_port_set_stp_state(port_priv, state);
|
}
|
|
static int port_attr_br_flags_set(struct net_device *netdev,
|
struct switchdev_trans *trans,
|
unsigned long flags)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err = 0;
|
|
if (switchdev_trans_ph_prepare(trans))
|
return 0;
|
|
/* Learning is enabled per switch */
|
err = ethsw_set_learning(port_priv->ethsw_data, flags & BR_LEARNING);
|
if (err)
|
goto exit;
|
|
err = ethsw_port_set_flood(port_priv, flags & BR_FLOOD);
|
|
exit:
|
return err;
|
}
|
|
static int swdev_port_attr_set(struct net_device *netdev,
|
const struct switchdev_attr *attr,
|
struct switchdev_trans *trans)
|
{
|
int err = 0;
|
|
switch (attr->id) {
|
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
|
err = port_attr_stp_state_set(netdev, trans,
|
attr->u.stp_state);
|
break;
|
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
|
err = port_attr_br_flags_set(netdev, trans,
|
attr->u.brport_flags);
|
break;
|
case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
|
/* VLANs are supported by default */
|
break;
|
default:
|
err = -EOPNOTSUPP;
|
break;
|
}
|
|
return err;
|
}
|
|
static int port_vlans_add(struct net_device *netdev,
|
const struct switchdev_obj_port_vlan *vlan,
|
struct switchdev_trans *trans)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int vid, err;
|
|
if (netif_is_bridge_master(vlan->obj.orig_dev))
|
return -EOPNOTSUPP;
|
|
if (switchdev_trans_ph_prepare(trans))
|
return 0;
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
|
if (!port_priv->ethsw_data->vlans[vid]) {
|
/* this is a new VLAN */
|
err = ethsw_add_vlan(port_priv->ethsw_data, vid);
|
if (err)
|
return err;
|
|
port_priv->ethsw_data->vlans[vid] |= ETHSW_VLAN_GLOBAL;
|
}
|
err = ethsw_port_add_vlan(port_priv, vid, vlan->flags);
|
if (err)
|
break;
|
}
|
|
return err;
|
}
|
|
static int port_lookup_address(struct net_device *netdev, int is_uc,
|
const unsigned char *addr)
|
{
|
struct netdev_hw_addr_list *list = (is_uc) ? &netdev->uc : &netdev->mc;
|
struct netdev_hw_addr *ha;
|
|
netif_addr_lock_bh(netdev);
|
list_for_each_entry(ha, &list->list, list) {
|
if (ether_addr_equal(ha->addr, addr)) {
|
netif_addr_unlock_bh(netdev);
|
return 1;
|
}
|
}
|
netif_addr_unlock_bh(netdev);
|
return 0;
|
}
|
|
static int port_mdb_add(struct net_device *netdev,
|
const struct switchdev_obj_port_mdb *mdb,
|
struct switchdev_trans *trans)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
if (switchdev_trans_ph_prepare(trans))
|
return 0;
|
|
/* Check if address is already set on this port */
|
if (port_lookup_address(netdev, 0, mdb->addr))
|
return -EEXIST;
|
|
err = ethsw_port_fdb_add_mc(port_priv, mdb->addr);
|
if (err)
|
return err;
|
|
err = dev_mc_add(netdev, mdb->addr);
|
if (err) {
|
netdev_err(netdev, "dev_mc_add err %d\n", err);
|
ethsw_port_fdb_del_mc(port_priv, mdb->addr);
|
}
|
|
return err;
|
}
|
|
static int swdev_port_obj_add(struct net_device *netdev,
|
const struct switchdev_obj *obj,
|
struct switchdev_trans *trans)
|
{
|
int err;
|
|
switch (obj->id) {
|
case SWITCHDEV_OBJ_ID_PORT_VLAN:
|
err = port_vlans_add(netdev,
|
SWITCHDEV_OBJ_PORT_VLAN(obj),
|
trans);
|
break;
|
case SWITCHDEV_OBJ_ID_PORT_MDB:
|
err = port_mdb_add(netdev,
|
SWITCHDEV_OBJ_PORT_MDB(obj),
|
trans);
|
break;
|
default:
|
err = -EOPNOTSUPP;
|
break;
|
}
|
|
return err;
|
}
|
|
static int ethsw_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid)
|
{
|
struct ethsw_core *ethsw = port_priv->ethsw_data;
|
struct net_device *netdev = port_priv->netdev;
|
struct dpsw_vlan_if_cfg vcfg;
|
int i, err;
|
|
if (!port_priv->vlans[vid])
|
return -ENOENT;
|
|
if (port_priv->vlans[vid] & ETHSW_VLAN_PVID) {
|
err = ethsw_port_set_pvid(port_priv, 0);
|
if (err)
|
return err;
|
}
|
|
vcfg.num_ifs = 1;
|
vcfg.if_id[0] = port_priv->idx;
|
if (port_priv->vlans[vid] & ETHSW_VLAN_UNTAGGED) {
|
err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0,
|
ethsw->dpsw_handle,
|
vid, &vcfg);
|
if (err) {
|
netdev_err(netdev,
|
"dpsw_vlan_remove_if_untagged err %d\n",
|
err);
|
}
|
port_priv->vlans[vid] &= ~ETHSW_VLAN_UNTAGGED;
|
}
|
|
if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) {
|
err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
vid, &vcfg);
|
if (err) {
|
netdev_err(netdev,
|
"dpsw_vlan_remove_if err %d\n", err);
|
return err;
|
}
|
port_priv->vlans[vid] &= ~ETHSW_VLAN_MEMBER;
|
|
/* Delete VLAN from switch if it is no longer configured on
|
* any port
|
*/
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
|
if (ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER)
|
return 0; /* Found a port member in VID */
|
|
ethsw->vlans[vid] &= ~ETHSW_VLAN_GLOBAL;
|
|
err = ethsw_dellink_switch(ethsw, vid);
|
if (err)
|
return err;
|
}
|
|
return 0;
|
}
|
|
static int port_vlans_del(struct net_device *netdev,
|
const struct switchdev_obj_port_vlan *vlan)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int vid, err;
|
|
if (netif_is_bridge_master(vlan->obj.orig_dev))
|
return -EOPNOTSUPP;
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
|
err = ethsw_port_del_vlan(port_priv, vid);
|
if (err)
|
break;
|
}
|
|
return err;
|
}
|
|
static int port_mdb_del(struct net_device *netdev,
|
const struct switchdev_obj_port_mdb *mdb)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
if (!port_lookup_address(netdev, 0, mdb->addr))
|
return -ENOENT;
|
|
err = ethsw_port_fdb_del_mc(port_priv, mdb->addr);
|
if (err)
|
return err;
|
|
err = dev_mc_del(netdev, mdb->addr);
|
if (err) {
|
netdev_err(netdev, "dev_mc_del err %d\n", err);
|
return err;
|
}
|
|
return err;
|
}
|
|
static int swdev_port_obj_del(struct net_device *netdev,
|
const struct switchdev_obj *obj)
|
{
|
int err;
|
|
switch (obj->id) {
|
case SWITCHDEV_OBJ_ID_PORT_VLAN:
|
err = port_vlans_del(netdev, SWITCHDEV_OBJ_PORT_VLAN(obj));
|
break;
|
case SWITCHDEV_OBJ_ID_PORT_MDB:
|
err = port_mdb_del(netdev, SWITCHDEV_OBJ_PORT_MDB(obj));
|
break;
|
default:
|
err = -EOPNOTSUPP;
|
break;
|
}
|
return err;
|
}
|
|
static const struct switchdev_ops ethsw_port_switchdev_ops = {
|
.switchdev_port_attr_get = swdev_port_attr_get,
|
.switchdev_port_attr_set = swdev_port_attr_set,
|
.switchdev_port_obj_add = swdev_port_obj_add,
|
.switchdev_port_obj_del = swdev_port_obj_del,
|
};
|
|
/* For the moment, only flood setting needs to be updated */
|
static int port_bridge_join(struct net_device *netdev,
|
struct net_device *upper_dev)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
struct ethsw_core *ethsw = port_priv->ethsw_data;
|
int i, err;
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
|
if (ethsw->ports[i]->bridge_dev &&
|
(ethsw->ports[i]->bridge_dev != upper_dev)) {
|
netdev_err(netdev,
|
"Another switch port is connected to %s\n",
|
ethsw->ports[i]->bridge_dev->name);
|
return -EINVAL;
|
}
|
|
/* Enable flooding */
|
err = ethsw_port_set_flood(port_priv, 1);
|
if (!err)
|
port_priv->bridge_dev = upper_dev;
|
|
return err;
|
}
|
|
static int port_bridge_leave(struct net_device *netdev)
|
{
|
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
|
int err;
|
|
/* Disable flooding */
|
err = ethsw_port_set_flood(port_priv, 0);
|
if (!err)
|
port_priv->bridge_dev = NULL;
|
|
return err;
|
}
|
|
static int port_netdevice_event(struct notifier_block *unused,
|
unsigned long event, void *ptr)
|
{
|
struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
|
struct netdev_notifier_changeupper_info *info = ptr;
|
struct net_device *upper_dev;
|
int err = 0;
|
|
if (netdev->netdev_ops != ðsw_port_ops)
|
return NOTIFY_DONE;
|
|
/* Handle just upper dev link/unlink for the moment */
|
if (event == NETDEV_CHANGEUPPER) {
|
upper_dev = info->upper_dev;
|
if (netif_is_bridge_master(upper_dev)) {
|
if (info->linking)
|
err = port_bridge_join(netdev, upper_dev);
|
else
|
err = port_bridge_leave(netdev);
|
}
|
}
|
|
return notifier_from_errno(err);
|
}
|
|
static struct notifier_block port_nb __read_mostly = {
|
.notifier_call = port_netdevice_event,
|
};
|
|
struct ethsw_switchdev_event_work {
|
struct work_struct work;
|
struct switchdev_notifier_fdb_info fdb_info;
|
struct net_device *dev;
|
unsigned long event;
|
};
|
|
static void ethsw_switchdev_event_work(struct work_struct *work)
|
{
|
struct ethsw_switchdev_event_work *switchdev_work =
|
container_of(work, struct ethsw_switchdev_event_work, work);
|
struct net_device *dev = switchdev_work->dev;
|
struct switchdev_notifier_fdb_info *fdb_info;
|
struct ethsw_port_priv *port_priv;
|
|
rtnl_lock();
|
port_priv = netdev_priv(dev);
|
fdb_info = &switchdev_work->fdb_info;
|
|
switch (switchdev_work->event) {
|
case SWITCHDEV_FDB_ADD_TO_DEVICE:
|
if (is_unicast_ether_addr(fdb_info->addr))
|
ethsw_port_fdb_add_uc(netdev_priv(dev), fdb_info->addr);
|
else
|
ethsw_port_fdb_add_mc(netdev_priv(dev), fdb_info->addr);
|
break;
|
case SWITCHDEV_FDB_DEL_TO_DEVICE:
|
if (is_unicast_ether_addr(fdb_info->addr))
|
ethsw_port_fdb_del_uc(netdev_priv(dev), fdb_info->addr);
|
else
|
ethsw_port_fdb_del_mc(netdev_priv(dev), fdb_info->addr);
|
break;
|
}
|
|
rtnl_unlock();
|
kfree(switchdev_work->fdb_info.addr);
|
kfree(switchdev_work);
|
dev_put(dev);
|
}
|
|
/* Called under rcu_read_lock() */
|
static int port_switchdev_event(struct notifier_block *unused,
|
unsigned long event, void *ptr)
|
{
|
struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
|
struct ethsw_switchdev_event_work *switchdev_work;
|
struct switchdev_notifier_fdb_info *fdb_info = ptr;
|
|
switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
|
if (!switchdev_work)
|
return NOTIFY_BAD;
|
|
INIT_WORK(&switchdev_work->work, ethsw_switchdev_event_work);
|
switchdev_work->dev = dev;
|
switchdev_work->event = event;
|
|
switch (event) {
|
case SWITCHDEV_FDB_ADD_TO_DEVICE:
|
case SWITCHDEV_FDB_DEL_TO_DEVICE:
|
memcpy(&switchdev_work->fdb_info, ptr,
|
sizeof(switchdev_work->fdb_info));
|
switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
|
if (!switchdev_work->fdb_info.addr)
|
goto err_addr_alloc;
|
|
ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
|
fdb_info->addr);
|
|
/* Take a reference on the device to avoid being freed. */
|
dev_hold(dev);
|
break;
|
default:
|
kfree(switchdev_work);
|
return NOTIFY_DONE;
|
}
|
|
queue_work(ethsw_owq, &switchdev_work->work);
|
|
return NOTIFY_DONE;
|
|
err_addr_alloc:
|
kfree(switchdev_work);
|
return NOTIFY_BAD;
|
}
|
|
static struct notifier_block port_switchdev_nb = {
|
.notifier_call = port_switchdev_event,
|
};
|
|
static int ethsw_register_notifier(struct device *dev)
|
{
|
int err;
|
|
err = register_netdevice_notifier(&port_nb);
|
if (err) {
|
dev_err(dev, "Failed to register netdev notifier\n");
|
return err;
|
}
|
|
err = register_switchdev_notifier(&port_switchdev_nb);
|
if (err) {
|
dev_err(dev, "Failed to register switchdev notifier\n");
|
goto err_switchdev_nb;
|
}
|
|
return 0;
|
|
err_switchdev_nb:
|
unregister_netdevice_notifier(&port_nb);
|
return err;
|
}
|
|
static int ethsw_open(struct ethsw_core *ethsw)
|
{
|
struct ethsw_port_priv *port_priv = NULL;
|
int i, err;
|
|
err = dpsw_enable(ethsw->mc_io, 0, ethsw->dpsw_handle);
|
if (err) {
|
dev_err(ethsw->dev, "dpsw_enable err %d\n", err);
|
return err;
|
}
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
port_priv = ethsw->ports[i];
|
err = dev_open(port_priv->netdev);
|
if (err) {
|
netdev_err(port_priv->netdev, "dev_open err %d\n", err);
|
return err;
|
}
|
}
|
|
return 0;
|
}
|
|
static int ethsw_stop(struct ethsw_core *ethsw)
|
{
|
struct ethsw_port_priv *port_priv = NULL;
|
int i, err;
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
port_priv = ethsw->ports[i];
|
dev_close(port_priv->netdev);
|
}
|
|
err = dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle);
|
if (err) {
|
dev_err(ethsw->dev, "dpsw_disable err %d\n", err);
|
return err;
|
}
|
|
return 0;
|
}
|
|
static int ethsw_init(struct fsl_mc_device *sw_dev)
|
{
|
struct device *dev = &sw_dev->dev;
|
struct ethsw_core *ethsw = dev_get_drvdata(dev);
|
u16 version_major, version_minor, i;
|
struct dpsw_stp_cfg stp_cfg;
|
int err;
|
|
ethsw->dev_id = sw_dev->obj_desc.id;
|
|
err = dpsw_open(ethsw->mc_io, 0, ethsw->dev_id, ðsw->dpsw_handle);
|
if (err) {
|
dev_err(dev, "dpsw_open err %d\n", err);
|
return err;
|
}
|
|
err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
ðsw->sw_attr);
|
if (err) {
|
dev_err(dev, "dpsw_get_attributes err %d\n", err);
|
goto err_close;
|
}
|
|
err = dpsw_get_api_version(ethsw->mc_io, 0,
|
&version_major,
|
&version_minor);
|
if (err) {
|
dev_err(dev, "dpsw_get_api_version err %d\n", err);
|
goto err_close;
|
}
|
|
/* Minimum supported DPSW version check */
|
if (version_major < DPSW_MIN_VER_MAJOR ||
|
(version_major == DPSW_MIN_VER_MAJOR &&
|
version_minor < DPSW_MIN_VER_MINOR)) {
|
dev_err(dev, "DPSW version %d:%d not supported. Use %d.%d or greater.\n",
|
version_major,
|
version_minor,
|
DPSW_MIN_VER_MAJOR, DPSW_MIN_VER_MINOR);
|
err = -ENOTSUPP;
|
goto err_close;
|
}
|
|
err = dpsw_reset(ethsw->mc_io, 0, ethsw->dpsw_handle);
|
if (err) {
|
dev_err(dev, "dpsw_reset err %d\n", err);
|
goto err_close;
|
}
|
|
err = dpsw_fdb_set_learning_mode(ethsw->mc_io, 0, ethsw->dpsw_handle, 0,
|
DPSW_FDB_LEARNING_MODE_HW);
|
if (err) {
|
dev_err(dev, "dpsw_fdb_set_learning_mode err %d\n", err);
|
goto err_close;
|
}
|
|
stp_cfg.vlan_id = DEFAULT_VLAN_ID;
|
stp_cfg.state = DPSW_STP_STATE_FORWARDING;
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
err = dpsw_if_set_stp(ethsw->mc_io, 0, ethsw->dpsw_handle, i,
|
&stp_cfg);
|
if (err) {
|
dev_err(dev, "dpsw_if_set_stp err %d for port %d\n",
|
err, i);
|
goto err_close;
|
}
|
|
err = dpsw_if_set_broadcast(ethsw->mc_io, 0,
|
ethsw->dpsw_handle, i, 1);
|
if (err) {
|
dev_err(dev,
|
"dpsw_if_set_broadcast err %d for port %d\n",
|
err, i);
|
goto err_close;
|
}
|
}
|
|
ethsw_owq = alloc_ordered_workqueue("%s_ordered", WQ_MEM_RECLAIM,
|
"ethsw");
|
if (!ethsw_owq) {
|
err = -ENOMEM;
|
goto err_close;
|
}
|
|
err = ethsw_register_notifier(dev);
|
if (err)
|
goto err_destroy_ordered_workqueue;
|
|
return 0;
|
|
err_destroy_ordered_workqueue:
|
destroy_workqueue(ethsw_owq);
|
|
err_close:
|
dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
|
return err;
|
}
|
|
static int ethsw_port_init(struct ethsw_port_priv *port_priv, u16 port)
|
{
|
const char def_mcast[ETH_ALEN] = {0x01, 0x00, 0x5e, 0x00, 0x00, 0x01};
|
struct net_device *netdev = port_priv->netdev;
|
struct ethsw_core *ethsw = port_priv->ethsw_data;
|
struct dpsw_vlan_if_cfg vcfg;
|
int err;
|
|
/* Switch starts with all ports configured to VLAN 1. Need to
|
* remove this setting to allow configuration at bridge join
|
*/
|
vcfg.num_ifs = 1;
|
vcfg.if_id[0] = port_priv->idx;
|
|
err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DEFAULT_VLAN_ID, &vcfg);
|
if (err) {
|
netdev_err(netdev, "dpsw_vlan_remove_if_untagged err %d\n",
|
err);
|
return err;
|
}
|
|
err = ethsw_port_set_pvid(port_priv, 0);
|
if (err)
|
return err;
|
|
err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
|
DEFAULT_VLAN_ID, &vcfg);
|
if (err) {
|
netdev_err(netdev, "dpsw_vlan_remove_if err %d\n", err);
|
return err;
|
}
|
|
err = ethsw_port_fdb_add_mc(port_priv, def_mcast);
|
|
return err;
|
}
|
|
static void ethsw_unregister_notifier(struct device *dev)
|
{
|
int err;
|
|
err = unregister_switchdev_notifier(&port_switchdev_nb);
|
if (err)
|
dev_err(dev,
|
"Failed to unregister switchdev notifier (%d)\n", err);
|
|
err = unregister_netdevice_notifier(&port_nb);
|
if (err)
|
dev_err(dev,
|
"Failed to unregister netdev notifier (%d)\n", err);
|
}
|
|
static void ethsw_takedown(struct fsl_mc_device *sw_dev)
|
{
|
struct device *dev = &sw_dev->dev;
|
struct ethsw_core *ethsw = dev_get_drvdata(dev);
|
int err;
|
|
ethsw_unregister_notifier(dev);
|
|
err = dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
|
if (err)
|
dev_warn(dev, "dpsw_close err %d\n", err);
|
}
|
|
static int ethsw_remove(struct fsl_mc_device *sw_dev)
|
{
|
struct ethsw_port_priv *port_priv;
|
struct ethsw_core *ethsw;
|
struct device *dev;
|
int i;
|
|
dev = &sw_dev->dev;
|
ethsw = dev_get_drvdata(dev);
|
|
ethsw_teardown_irqs(sw_dev);
|
|
destroy_workqueue(ethsw_owq);
|
|
rtnl_lock();
|
ethsw_stop(ethsw);
|
rtnl_unlock();
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
port_priv = ethsw->ports[i];
|
unregister_netdev(port_priv->netdev);
|
free_netdev(port_priv->netdev);
|
}
|
kfree(ethsw->ports);
|
|
ethsw_takedown(sw_dev);
|
fsl_mc_portal_free(ethsw->mc_io);
|
|
kfree(ethsw);
|
|
dev_set_drvdata(dev, NULL);
|
|
return 0;
|
}
|
|
static int ethsw_probe_port(struct ethsw_core *ethsw, u16 port_idx)
|
{
|
struct ethsw_port_priv *port_priv;
|
struct device *dev = ethsw->dev;
|
struct net_device *port_netdev;
|
int err;
|
|
port_netdev = alloc_etherdev(sizeof(struct ethsw_port_priv));
|
if (!port_netdev) {
|
dev_err(dev, "alloc_etherdev error\n");
|
return -ENOMEM;
|
}
|
|
port_priv = netdev_priv(port_netdev);
|
port_priv->netdev = port_netdev;
|
port_priv->ethsw_data = ethsw;
|
|
port_priv->idx = port_idx;
|
port_priv->stp_state = BR_STATE_FORWARDING;
|
|
/* Flooding is implicitly enabled */
|
port_priv->flood = true;
|
|
SET_NETDEV_DEV(port_netdev, dev);
|
port_netdev->netdev_ops = ðsw_port_ops;
|
port_netdev->ethtool_ops = ðsw_port_ethtool_ops;
|
port_netdev->switchdev_ops = ðsw_port_switchdev_ops;
|
|
/* Set MTU limits */
|
port_netdev->min_mtu = ETH_MIN_MTU;
|
port_netdev->max_mtu = ETHSW_MAX_FRAME_LENGTH;
|
|
err = register_netdev(port_netdev);
|
if (err < 0) {
|
dev_err(dev, "register_netdev error %d\n", err);
|
free_netdev(port_netdev);
|
return err;
|
}
|
|
ethsw->ports[port_idx] = port_priv;
|
|
return ethsw_port_init(port_priv, port_idx);
|
}
|
|
static int ethsw_probe(struct fsl_mc_device *sw_dev)
|
{
|
struct device *dev = &sw_dev->dev;
|
struct ethsw_core *ethsw;
|
int i, err;
|
|
/* Allocate switch core*/
|
ethsw = kzalloc(sizeof(*ethsw), GFP_KERNEL);
|
|
if (!ethsw)
|
return -ENOMEM;
|
|
ethsw->dev = dev;
|
dev_set_drvdata(dev, ethsw);
|
|
err = fsl_mc_portal_allocate(sw_dev, 0, ðsw->mc_io);
|
if (err) {
|
if (err == -ENXIO)
|
err = -EPROBE_DEFER;
|
else
|
dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
|
goto err_free_drvdata;
|
}
|
|
err = ethsw_init(sw_dev);
|
if (err)
|
goto err_free_cmdport;
|
|
/* DEFAULT_VLAN_ID is implicitly configured on the switch */
|
ethsw->vlans[DEFAULT_VLAN_ID] = ETHSW_VLAN_MEMBER;
|
|
/* Learning is implicitly enabled */
|
ethsw->learning = true;
|
|
ethsw->ports = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->ports),
|
GFP_KERNEL);
|
if (!(ethsw->ports)) {
|
err = -ENOMEM;
|
goto err_takedown;
|
}
|
|
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
|
err = ethsw_probe_port(ethsw, i);
|
if (err)
|
goto err_free_ports;
|
}
|
|
/* Switch starts up enabled */
|
rtnl_lock();
|
err = ethsw_open(ethsw);
|
rtnl_unlock();
|
if (err)
|
goto err_free_ports;
|
|
/* Setup IRQs */
|
err = ethsw_setup_irqs(sw_dev);
|
if (err)
|
goto err_stop;
|
|
dev_info(dev, "probed %d port switch\n", ethsw->sw_attr.num_ifs);
|
return 0;
|
|
err_stop:
|
rtnl_lock();
|
ethsw_stop(ethsw);
|
rtnl_unlock();
|
|
err_free_ports:
|
/* Cleanup registered ports only */
|
for (i--; i >= 0; i--) {
|
unregister_netdev(ethsw->ports[i]->netdev);
|
free_netdev(ethsw->ports[i]->netdev);
|
}
|
kfree(ethsw->ports);
|
|
err_takedown:
|
ethsw_takedown(sw_dev);
|
|
err_free_cmdport:
|
fsl_mc_portal_free(ethsw->mc_io);
|
|
err_free_drvdata:
|
kfree(ethsw);
|
dev_set_drvdata(dev, NULL);
|
|
return err;
|
}
|
|
static const struct fsl_mc_device_id ethsw_match_id_table[] = {
|
{
|
.vendor = FSL_MC_VENDOR_FREESCALE,
|
.obj_type = "dpsw",
|
},
|
{ .vendor = 0x0 }
|
};
|
MODULE_DEVICE_TABLE(fslmc, ethsw_match_id_table);
|
|
static struct fsl_mc_driver eth_sw_drv = {
|
.driver = {
|
.name = KBUILD_MODNAME,
|
.owner = THIS_MODULE,
|
},
|
.probe = ethsw_probe,
|
.remove = ethsw_remove,
|
.match_id_table = ethsw_match_id_table
|
};
|
|
module_fsl_mc_driver(eth_sw_drv);
|
|
MODULE_LICENSE("GPL v2");
|
MODULE_DESCRIPTION("DPAA2 Ethernet Switch Driver");
|
