520 lines
11 KiB
C
520 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Realtek SMI library helpers for the RTL8366x variants
|
|
* RTL8366RB and RTL8366S
|
|
*
|
|
* Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
|
|
* Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
|
|
* Copyright (C) 2010 Roman Yeryomin <roman@advem.lv>
|
|
* Copyright (C) 2011 Colin Leitner <colin.leitner@googlemail.com>
|
|
*/
|
|
#include <linux/if_bridge.h>
|
|
#include <net/dsa.h>
|
|
|
|
#include "realtek-smi-core.h"
|
|
|
|
int rtl8366_mc_is_used(struct realtek_smi *smi, int mc_index, int *used)
|
|
{
|
|
int ret;
|
|
int i;
|
|
|
|
*used = 0;
|
|
for (i = 0; i < smi->num_ports; i++) {
|
|
int index = 0;
|
|
|
|
ret = smi->ops->get_mc_index(smi, i, &index);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (mc_index == index) {
|
|
*used = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_mc_is_used);
|
|
|
|
int rtl8366_set_vlan(struct realtek_smi *smi, int vid, u32 member,
|
|
u32 untag, u32 fid)
|
|
{
|
|
struct rtl8366_vlan_4k vlan4k;
|
|
int ret;
|
|
int i;
|
|
|
|
/* Update the 4K table */
|
|
ret = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
|
|
if (ret)
|
|
return ret;
|
|
|
|
vlan4k.member = member;
|
|
vlan4k.untag = untag;
|
|
vlan4k.fid = fid;
|
|
ret = smi->ops->set_vlan_4k(smi, &vlan4k);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Try to find an existing MC entry for this VID */
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
struct rtl8366_vlan_mc vlanmc;
|
|
|
|
ret = smi->ops->get_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (vid == vlanmc.vid) {
|
|
/* update the MC entry */
|
|
vlanmc.member = member;
|
|
vlanmc.untag = untag;
|
|
vlanmc.fid = fid;
|
|
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_set_vlan);
|
|
|
|
int rtl8366_get_pvid(struct realtek_smi *smi, int port, int *val)
|
|
{
|
|
struct rtl8366_vlan_mc vlanmc;
|
|
int ret;
|
|
int index;
|
|
|
|
ret = smi->ops->get_mc_index(smi, port, &index);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = smi->ops->get_vlan_mc(smi, index, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
*val = vlanmc.vid;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_get_pvid);
|
|
|
|
int rtl8366_set_pvid(struct realtek_smi *smi, unsigned int port,
|
|
unsigned int vid)
|
|
{
|
|
struct rtl8366_vlan_mc vlanmc;
|
|
struct rtl8366_vlan_4k vlan4k;
|
|
int ret;
|
|
int i;
|
|
|
|
/* Try to find an existing MC entry for this VID */
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
ret = smi->ops->get_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (vid == vlanmc.vid) {
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = smi->ops->set_mc_index(smi, port, i);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* We have no MC entry for this VID, try to find an empty one */
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
ret = smi->ops->get_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (vlanmc.vid == 0 && vlanmc.member == 0) {
|
|
/* Update the entry from the 4K table */
|
|
ret = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
|
|
if (ret)
|
|
return ret;
|
|
|
|
vlanmc.vid = vid;
|
|
vlanmc.member = vlan4k.member;
|
|
vlanmc.untag = vlan4k.untag;
|
|
vlanmc.fid = vlan4k.fid;
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = smi->ops->set_mc_index(smi, port, i);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* MC table is full, try to find an unused entry and replace it */
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
int used;
|
|
|
|
ret = rtl8366_mc_is_used(smi, i, &used);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!used) {
|
|
/* Update the entry from the 4K table */
|
|
ret = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
|
|
if (ret)
|
|
return ret;
|
|
|
|
vlanmc.vid = vid;
|
|
vlanmc.member = vlan4k.member;
|
|
vlanmc.untag = vlan4k.untag;
|
|
vlanmc.fid = vlan4k.fid;
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = smi->ops->set_mc_index(smi, port, i);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
dev_err(smi->dev,
|
|
"all VLAN member configurations are in use\n");
|
|
|
|
return -ENOSPC;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_set_pvid);
|
|
|
|
int rtl8366_enable_vlan4k(struct realtek_smi *smi, bool enable)
|
|
{
|
|
int ret;
|
|
|
|
/* To enable 4k VLAN, ordinary VLAN must be enabled first,
|
|
* but if we disable 4k VLAN it is fine to leave ordinary
|
|
* VLAN enabled.
|
|
*/
|
|
if (enable) {
|
|
/* Make sure VLAN is ON */
|
|
ret = smi->ops->enable_vlan(smi, true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
smi->vlan_enabled = true;
|
|
}
|
|
|
|
ret = smi->ops->enable_vlan4k(smi, enable);
|
|
if (ret)
|
|
return ret;
|
|
|
|
smi->vlan4k_enabled = enable;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_enable_vlan4k);
|
|
|
|
int rtl8366_enable_vlan(struct realtek_smi *smi, bool enable)
|
|
{
|
|
int ret;
|
|
|
|
ret = smi->ops->enable_vlan(smi, enable);
|
|
if (ret)
|
|
return ret;
|
|
|
|
smi->vlan_enabled = enable;
|
|
|
|
/* If we turn VLAN off, make sure that we turn off
|
|
* 4k VLAN as well, if that happened to be on.
|
|
*/
|
|
if (!enable) {
|
|
smi->vlan4k_enabled = false;
|
|
ret = smi->ops->enable_vlan4k(smi, false);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_enable_vlan);
|
|
|
|
int rtl8366_reset_vlan(struct realtek_smi *smi)
|
|
{
|
|
struct rtl8366_vlan_mc vlanmc;
|
|
int ret;
|
|
int i;
|
|
|
|
rtl8366_enable_vlan(smi, false);
|
|
rtl8366_enable_vlan4k(smi, false);
|
|
|
|
/* Clear the 16 VLAN member configurations */
|
|
vlanmc.vid = 0;
|
|
vlanmc.priority = 0;
|
|
vlanmc.member = 0;
|
|
vlanmc.untag = 0;
|
|
vlanmc.fid = 0;
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
|
|
|
|
int rtl8366_init_vlan(struct realtek_smi *smi)
|
|
{
|
|
int port;
|
|
int ret;
|
|
|
|
ret = rtl8366_reset_vlan(smi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Loop over the available ports, for each port, associate
|
|
* it with the VLAN (port+1)
|
|
*/
|
|
for (port = 0; port < smi->num_ports; port++) {
|
|
u32 mask;
|
|
|
|
if (port == smi->cpu_port)
|
|
/* For the CPU port, make all ports members of this
|
|
* VLAN.
|
|
*/
|
|
mask = GENMASK(smi->num_ports - 1, 0);
|
|
else
|
|
/* For all other ports, enable itself plus the
|
|
* CPU port.
|
|
*/
|
|
mask = BIT(port) | BIT(smi->cpu_port);
|
|
|
|
/* For each port, set the port as member of VLAN (port+1)
|
|
* and untagged, except for the CPU port: the CPU port (5) is
|
|
* member of VLAN 6 and so are ALL the other ports as well.
|
|
* Use filter 0 (no filter).
|
|
*/
|
|
dev_info(smi->dev, "VLAN%d port mask for port %d, %08x\n",
|
|
(port + 1), port, mask);
|
|
ret = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev_info(smi->dev, "VLAN%d port %d, PVID set to %d\n",
|
|
(port + 1), port, (port + 1));
|
|
ret = rtl8366_set_pvid(smi, port, (port + 1));
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return rtl8366_enable_vlan(smi, true);
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_init_vlan);
|
|
|
|
int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
struct rtl8366_vlan_4k vlan4k;
|
|
int ret;
|
|
|
|
/* Use VLAN nr port + 1 since VLAN0 is not valid */
|
|
if (!smi->ops->is_vlan_valid(smi, port + 1))
|
|
return -EINVAL;
|
|
|
|
dev_info(smi->dev, "%s filtering on port %d\n",
|
|
vlan_filtering ? "enable" : "disable",
|
|
port);
|
|
|
|
/* TODO:
|
|
* The hardware support filter ID (FID) 0..7, I have no clue how to
|
|
* support this in the driver when the callback only says on/off.
|
|
*/
|
|
ret = smi->ops->get_vlan_4k(smi, port + 1, &vlan4k);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Just set the filter to FID 1 for now then */
|
|
ret = rtl8366_set_vlan(smi, port + 1,
|
|
vlan4k.member,
|
|
vlan4k.untag,
|
|
1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_vlan_filtering);
|
|
|
|
int rtl8366_vlan_prepare(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
u16 vid;
|
|
int ret;
|
|
|
|
for (vid = vlan->vid_begin; vid < vlan->vid_end; vid++)
|
|
if (!smi->ops->is_vlan_valid(smi, vid))
|
|
return -EINVAL;
|
|
|
|
dev_info(smi->dev, "prepare VLANs %04x..%04x\n",
|
|
vlan->vid_begin, vlan->vid_end);
|
|
|
|
/* Enable VLAN in the hardware
|
|
* FIXME: what's with this 4k business?
|
|
* Just rtl8366_enable_vlan() seems inconclusive.
|
|
*/
|
|
ret = rtl8366_enable_vlan4k(smi, true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_vlan_prepare);
|
|
|
|
void rtl8366_vlan_add(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
bool untagged = !!(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED);
|
|
bool pvid = !!(vlan->flags & BRIDGE_VLAN_INFO_PVID);
|
|
struct realtek_smi *smi = ds->priv;
|
|
u32 member = 0;
|
|
u32 untag = 0;
|
|
u16 vid;
|
|
int ret;
|
|
|
|
for (vid = vlan->vid_begin; vid < vlan->vid_end; vid++)
|
|
if (!smi->ops->is_vlan_valid(smi, vid))
|
|
return;
|
|
|
|
dev_info(smi->dev, "add VLAN on port %d, %s, %s\n",
|
|
port,
|
|
untagged ? "untagged" : "tagged",
|
|
pvid ? " PVID" : "no PVID");
|
|
|
|
if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
|
|
dev_err(smi->dev, "port is DSA or CPU port\n");
|
|
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
|
|
int pvid_val = 0;
|
|
|
|
dev_info(smi->dev, "add VLAN %04x\n", vid);
|
|
member |= BIT(port);
|
|
|
|
if (untagged)
|
|
untag |= BIT(port);
|
|
|
|
/* To ensure that we have a valid MC entry for this VLAN,
|
|
* initialize the port VLAN ID here.
|
|
*/
|
|
ret = rtl8366_get_pvid(smi, port, &pvid_val);
|
|
if (ret < 0) {
|
|
dev_err(smi->dev, "could not lookup PVID for port %d\n",
|
|
port);
|
|
return;
|
|
}
|
|
if (pvid_val == 0) {
|
|
ret = rtl8366_set_pvid(smi, port, vid);
|
|
if (ret < 0)
|
|
return;
|
|
}
|
|
}
|
|
|
|
ret = rtl8366_set_vlan(smi, port, member, untag, 0);
|
|
if (ret)
|
|
dev_err(smi->dev,
|
|
"failed to set up VLAN %04x",
|
|
vid);
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_vlan_add);
|
|
|
|
int rtl8366_vlan_del(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
u16 vid;
|
|
int ret;
|
|
|
|
dev_info(smi->dev, "del VLAN on port %d\n", port);
|
|
|
|
for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
|
|
int i;
|
|
|
|
dev_info(smi->dev, "del VLAN %04x\n", vid);
|
|
|
|
for (i = 0; i < smi->num_vlan_mc; i++) {
|
|
struct rtl8366_vlan_mc vlanmc;
|
|
|
|
ret = smi->ops->get_vlan_mc(smi, i, &vlanmc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (vid == vlanmc.vid) {
|
|
/* clear VLAN member configurations */
|
|
vlanmc.vid = 0;
|
|
vlanmc.priority = 0;
|
|
vlanmc.member = 0;
|
|
vlanmc.untag = 0;
|
|
vlanmc.fid = 0;
|
|
|
|
ret = smi->ops->set_vlan_mc(smi, i, &vlanmc);
|
|
if (ret) {
|
|
dev_err(smi->dev,
|
|
"failed to remove VLAN %04x\n",
|
|
vid);
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_vlan_del);
|
|
|
|
void rtl8366_get_strings(struct dsa_switch *ds, int port, u32 stringset,
|
|
uint8_t *data)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
struct rtl8366_mib_counter *mib;
|
|
int i;
|
|
|
|
if (port >= smi->num_ports)
|
|
return;
|
|
|
|
for (i = 0; i < smi->num_mib_counters; i++) {
|
|
mib = &smi->mib_counters[i];
|
|
strncpy(data + i * ETH_GSTRING_LEN,
|
|
mib->name, ETH_GSTRING_LEN);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_get_strings);
|
|
|
|
int rtl8366_get_sset_count(struct dsa_switch *ds, int port, int sset)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
|
|
/* We only support SS_STATS */
|
|
if (sset != ETH_SS_STATS)
|
|
return 0;
|
|
if (port >= smi->num_ports)
|
|
return -EINVAL;
|
|
|
|
return smi->num_mib_counters;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_get_sset_count);
|
|
|
|
void rtl8366_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
|
|
{
|
|
struct realtek_smi *smi = ds->priv;
|
|
int i;
|
|
int ret;
|
|
|
|
if (port >= smi->num_ports)
|
|
return;
|
|
|
|
for (i = 0; i < smi->num_mib_counters; i++) {
|
|
struct rtl8366_mib_counter *mib;
|
|
u64 mibvalue = 0;
|
|
|
|
mib = &smi->mib_counters[i];
|
|
ret = smi->ops->get_mib_counter(smi, port, mib, &mibvalue);
|
|
if (ret) {
|
|
dev_err(smi->dev, "error reading MIB counter %s\n",
|
|
mib->name);
|
|
}
|
|
data[i] = mibvalue;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl8366_get_ethtool_stats);
|