OpenWrt – Rev 4
?pathlinks?
/*
* rtl8306.c: RTL8306S switch driver
*
* Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/if.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <net/genetlink.h>
#include <linux/switch.h>
#include <linux/delay.h>
#include <linux/phy.h>
#include <linux/version.h>
//#define DEBUG 1
/* Global (PHY0) */
#define RTL8306_REG_PAGE 16
#define RTL8306_REG_PAGE_LO (1 << 15)
#define RTL8306_REG_PAGE_HI (1 << 1) /* inverted */
#define RTL8306_NUM_VLANS 16
#define RTL8306_NUM_PORTS 6
#define RTL8306_PORT_CPU 5
#define RTL8306_NUM_PAGES 4
#define RTL8306_NUM_REGS 32
#define RTL_NAME_S "RTL8306S"
#define RTL_NAME_SD "RTL8306SD"
#define RTL_NAME_SDM "RTL8306SDM"
#define RTL_NAME_UNKNOWN "RTL8306(unknown)"
#define RTL8306_MAGIC 0x8306
static LIST_HEAD(phydevs);
struct rtl_priv {
struct list_head list;
struct switch_dev dev;
int page;
int type;
int do_cpu;
struct mii_bus *bus;
char hwname[sizeof(RTL_NAME_UNKNOWN)];
bool fixup;
};
struct rtl_phyregs {
int nway;
int speed;
int duplex;
};
#define to_rtl(_dev) container_of(_dev, struct rtl_priv, dev)
enum {
RTL_TYPE_S,
RTL_TYPE_SD,
RTL_TYPE_SDM,
};
struct rtl_reg {
int page;
int phy;
int reg;
int bits;
int shift;
int inverted;
};
#define RTL_VLAN_REGOFS(name) \
(RTL_REG_VLAN1_##name - RTL_REG_VLAN0_##name)
#define RTL_PORT_REGOFS(name) \
(RTL_REG_PORT1_##name - RTL_REG_PORT0_##name)
#define RTL_PORT_REG(id, reg) \
(RTL_REG_PORT0_##reg + (id * RTL_PORT_REGOFS(reg)))
#define RTL_VLAN_REG(id, reg) \
(RTL_REG_VLAN0_##reg + (id * RTL_VLAN_REGOFS(reg)))
#define RTL_GLOBAL_REGATTR(reg) \
.id = RTL_REG_##reg, \
.type = SWITCH_TYPE_INT, \
.ofs = 0, \
.set = rtl_attr_set_int, \
.get = rtl_attr_get_int
#define RTL_PORT_REGATTR(reg) \
.id = RTL_REG_PORT0_##reg, \
.type = SWITCH_TYPE_INT, \
.ofs = RTL_PORT_REGOFS(reg), \
.set = rtl_attr_set_port_int, \
.get = rtl_attr_get_port_int
#define RTL_VLAN_REGATTR(reg) \
.id = RTL_REG_VLAN0_##reg, \
.type = SWITCH_TYPE_INT, \
.ofs = RTL_VLAN_REGOFS(reg), \
.set = rtl_attr_set_vlan_int, \
.get = rtl_attr_get_vlan_int
enum rtl_regidx {
RTL_REG_CHIPID,
RTL_REG_CHIPVER,
RTL_REG_CHIPTYPE,
RTL_REG_CPUPORT,
RTL_REG_EN_CPUPORT,
RTL_REG_EN_TAG_OUT,
RTL_REG_EN_TAG_CLR,
RTL_REG_EN_TAG_IN,
RTL_REG_TRAP_CPU,
RTL_REG_CPU_LINKUP,
RTL_REG_TRUNK_PORTSEL,
RTL_REG_EN_TRUNK,
RTL_REG_RESET,
RTL_REG_VLAN_ENABLE,
RTL_REG_VLAN_FILTER,
RTL_REG_VLAN_TAG_ONLY,
RTL_REG_VLAN_TAG_AWARE,
#define RTL_VLAN_ENUM(id) \
RTL_REG_VLAN##id##_VID, \
RTL_REG_VLAN##id##_PORTMASK
RTL_VLAN_ENUM(0),
RTL_VLAN_ENUM(1),
RTL_VLAN_ENUM(2),
RTL_VLAN_ENUM(3),
RTL_VLAN_ENUM(4),
RTL_VLAN_ENUM(5),
RTL_VLAN_ENUM(6),
RTL_VLAN_ENUM(7),
RTL_VLAN_ENUM(8),
RTL_VLAN_ENUM(9),
RTL_VLAN_ENUM(10),
RTL_VLAN_ENUM(11),
RTL_VLAN_ENUM(12),
RTL_VLAN_ENUM(13),
RTL_VLAN_ENUM(14),
RTL_VLAN_ENUM(15),
#define RTL_PORT_ENUM(id) \
RTL_REG_PORT##id##_PVID, \
RTL_REG_PORT##id##_NULL_VID_REPLACE, \
RTL_REG_PORT##id##_NON_PVID_DISCARD, \
RTL_REG_PORT##id##_VID_INSERT, \
RTL_REG_PORT##id##_TAG_INSERT, \
RTL_REG_PORT##id##_LINK, \
RTL_REG_PORT##id##_SPEED, \
RTL_REG_PORT##id##_NWAY, \
RTL_REG_PORT##id##_NRESTART, \
RTL_REG_PORT##id##_DUPLEX, \
RTL_REG_PORT##id##_RXEN, \
RTL_REG_PORT##id##_TXEN
RTL_PORT_ENUM(0),
RTL_PORT_ENUM(1),
RTL_PORT_ENUM(2),
RTL_PORT_ENUM(3),
RTL_PORT_ENUM(4),
RTL_PORT_ENUM(5),
};
static const struct rtl_reg rtl_regs[] = {
[RTL_REG_CHIPID] = { 0, 4, 30, 16, 0, 0 },
[RTL_REG_CHIPVER] = { 0, 4, 31, 8, 0, 0 },
[RTL_REG_CHIPTYPE] = { 0, 4, 31, 2, 8, 0 },
/* CPU port number */
[RTL_REG_CPUPORT] = { 2, 4, 21, 3, 0, 0 },
/* Enable CPU port function */
[RTL_REG_EN_CPUPORT] = { 3, 2, 21, 1, 15, 1 },
/* Enable CPU port tag insertion */
[RTL_REG_EN_TAG_OUT] = { 3, 2, 21, 1, 12, 0 },
/* Enable CPU port tag removal */
[RTL_REG_EN_TAG_CLR] = { 3, 2, 21, 1, 11, 0 },
/* Enable CPU port tag checking */
[RTL_REG_EN_TAG_IN] = { 0, 4, 21, 1, 7, 0 },
[RTL_REG_EN_TRUNK] = { 0, 0, 19, 1, 11, 1 },
[RTL_REG_TRUNK_PORTSEL] = { 0, 0, 16, 1, 6, 1 },
[RTL_REG_RESET] = { 0, 0, 16, 1, 12, 0 },
[RTL_REG_TRAP_CPU] = { 3, 2, 22, 1, 6, 0 },
[RTL_REG_CPU_LINKUP] = { 0, 6, 22, 1, 15, 0 },
[RTL_REG_VLAN_TAG_ONLY] = { 0, 0, 16, 1, 8, 1 },
[RTL_REG_VLAN_FILTER] = { 0, 0, 16, 1, 9, 1 },
[RTL_REG_VLAN_TAG_AWARE] = { 0, 0, 16, 1, 10, 1 },
[RTL_REG_VLAN_ENABLE] = { 0, 0, 18, 1, 8, 1 },
#define RTL_VLAN_REGS(id, phy, page, regofs) \
[RTL_REG_VLAN##id##_VID] = { page, phy, 25 + regofs, 12, 0, 0 }, \
[RTL_REG_VLAN##id##_PORTMASK] = { page, phy, 24 + regofs, 6, 0, 0 }
RTL_VLAN_REGS( 0, 0, 0, 0),
RTL_VLAN_REGS( 1, 1, 0, 0),
RTL_VLAN_REGS( 2, 2, 0, 0),
RTL_VLAN_REGS( 3, 3, 0, 0),
RTL_VLAN_REGS( 4, 4, 0, 0),
RTL_VLAN_REGS( 5, 0, 1, 2),
RTL_VLAN_REGS( 6, 1, 1, 2),
RTL_VLAN_REGS( 7, 2, 1, 2),
RTL_VLAN_REGS( 8, 3, 1, 2),
RTL_VLAN_REGS( 9, 4, 1, 2),
RTL_VLAN_REGS(10, 0, 1, 4),
RTL_VLAN_REGS(11, 1, 1, 4),
RTL_VLAN_REGS(12, 2, 1, 4),
RTL_VLAN_REGS(13, 3, 1, 4),
RTL_VLAN_REGS(14, 4, 1, 4),
RTL_VLAN_REGS(15, 0, 1, 6),
#define REG_PORT_SETTING(port, phy) \
[RTL_REG_PORT##port##_SPEED] = { 0, phy, 0, 1, 13, 0 }, \
[RTL_REG_PORT##port##_NWAY] = { 0, phy, 0, 1, 12, 0 }, \
[RTL_REG_PORT##port##_NRESTART] = { 0, phy, 0, 1, 9, 0 }, \
[RTL_REG_PORT##port##_DUPLEX] = { 0, phy, 0, 1, 8, 0 }, \
[RTL_REG_PORT##port##_TXEN] = { 0, phy, 24, 1, 11, 0 }, \
[RTL_REG_PORT##port##_RXEN] = { 0, phy, 24, 1, 10, 0 }, \
[RTL_REG_PORT##port##_LINK] = { 0, phy, 1, 1, 2, 0 }, \
[RTL_REG_PORT##port##_NULL_VID_REPLACE] = { 0, phy, 22, 1, 12, 0 }, \
[RTL_REG_PORT##port##_NON_PVID_DISCARD] = { 0, phy, 22, 1, 11, 0 }, \
[RTL_REG_PORT##port##_VID_INSERT] = { 0, phy, 22, 2, 9, 0 }, \
[RTL_REG_PORT##port##_TAG_INSERT] = { 0, phy, 22, 2, 0, 0 }
REG_PORT_SETTING(0, 0),
REG_PORT_SETTING(1, 1),
REG_PORT_SETTING(2, 2),
REG_PORT_SETTING(3, 3),
REG_PORT_SETTING(4, 4),
REG_PORT_SETTING(5, 6),
#define REG_PORT_PVID(phy, page, regofs) \
{ page, phy, 24 + regofs, 4, 12, 0 }
[RTL_REG_PORT0_PVID] = REG_PORT_PVID(0, 0, 0),
[RTL_REG_PORT1_PVID] = REG_PORT_PVID(1, 0, 0),
[RTL_REG_PORT2_PVID] = REG_PORT_PVID(2, 0, 0),
[RTL_REG_PORT3_PVID] = REG_PORT_PVID(3, 0, 0),
[RTL_REG_PORT4_PVID] = REG_PORT_PVID(4, 0, 0),
[RTL_REG_PORT5_PVID] = REG_PORT_PVID(0, 1, 2),
};
static inline void
rtl_set_page(struct rtl_priv *priv, unsigned int page)
{
struct mii_bus *bus = priv->bus;
u16 pgsel;
if (priv->fixup)
return;
if (priv->page == page)
return;
BUG_ON(page > RTL8306_NUM_PAGES);
pgsel = bus->read(bus, 0, RTL8306_REG_PAGE);
pgsel &= ~(RTL8306_REG_PAGE_LO | RTL8306_REG_PAGE_HI);
if (page & (1 << 0))
pgsel |= RTL8306_REG_PAGE_LO;
if (!(page & (1 << 1))) /* bit is inverted */
pgsel |= RTL8306_REG_PAGE_HI;
bus->write(bus, 0, RTL8306_REG_PAGE, pgsel);
}
static inline int
rtl_w16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 val)
{
struct rtl_priv *priv = to_rtl(dev);
struct mii_bus *bus = priv->bus;
rtl_set_page(priv, page);
bus->write(bus, phy, reg, val);
bus->read(bus, phy, reg); /* flush */
return 0;
}
static inline int
rtl_r16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg)
{
struct rtl_priv *priv = to_rtl(dev);
struct mii_bus *bus = priv->bus;
rtl_set_page(priv, page);
return bus->read(bus, phy, reg);
}
static inline u16
rtl_rmw(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 mask, u16 val)
{
struct rtl_priv *priv = to_rtl(dev);
struct mii_bus *bus = priv->bus;
u16 r;
rtl_set_page(priv, page);
r = bus->read(bus, phy, reg);
r &= ~mask;
r |= val;
bus->write(bus, phy, reg, r);
return bus->read(bus, phy, reg); /* flush */
}
static inline int
rtl_get(struct switch_dev *dev, enum rtl_regidx s)
{
const struct rtl_reg *r = &rtl_regs[s];
u16 val;
BUG_ON(s >= ARRAY_SIZE(rtl_regs));
if (r->bits == 0) /* unimplemented */
return 0;
val = rtl_r16(dev, r->page, r->phy, r->reg);
if (r->shift > 0)
val >>= r->shift;
if (r->inverted)
val = ~val;
val &= (1 << r->bits) - 1;
return val;
}
static int
rtl_set(struct switch_dev *dev, enum rtl_regidx s, unsigned int val)
{
const struct rtl_reg *r = &rtl_regs[s];
u16 mask = 0xffff;
BUG_ON(s >= ARRAY_SIZE(rtl_regs));
if (r->bits == 0) /* unimplemented */
return 0;
if (r->shift > 0)
val <<= r->shift;
if (r->inverted)
val = ~val;
if (r->bits != 16) {
mask = (1 << r->bits) - 1;
mask <<= r->shift;
}
val &= mask;
return rtl_rmw(dev, r->page, r->phy, r->reg, mask, val);
}
static void
rtl_phy_save(struct switch_dev *dev, int port, struct rtl_phyregs *regs)
{
regs->nway = rtl_get(dev, RTL_PORT_REG(port, NWAY));
regs->speed = rtl_get(dev, RTL_PORT_REG(port, SPEED));
regs->duplex = rtl_get(dev, RTL_PORT_REG(port, DUPLEX));
}
static void
rtl_phy_restore(struct switch_dev *dev, int port, struct rtl_phyregs *regs)
{
rtl_set(dev, RTL_PORT_REG(port, NWAY), regs->nway);
rtl_set(dev, RTL_PORT_REG(port, SPEED), regs->speed);
rtl_set(dev, RTL_PORT_REG(port, DUPLEX), regs->duplex);
}
static void
rtl_port_set_enable(struct switch_dev *dev, int port, int enabled)
{
rtl_set(dev, RTL_PORT_REG(port, RXEN), enabled);
rtl_set(dev, RTL_PORT_REG(port, TXEN), enabled);
if ((port >= 5) || !enabled)
return;
/* restart autonegotiation if enabled */
rtl_set(dev, RTL_PORT_REG(port, NRESTART), 1);
}
static int
rtl_hw_apply(struct switch_dev *dev)
{
int i;
int trunk_en, trunk_psel;
struct rtl_phyregs port5;
rtl_phy_save(dev, 5, &port5);
/* disable rx/tx from PHYs */
for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) {
rtl_port_set_enable(dev, i, 0);
}
/* save trunking status */
trunk_en = rtl_get(dev, RTL_REG_EN_TRUNK);
trunk_psel = rtl_get(dev, RTL_REG_TRUNK_PORTSEL);
/* trunk port 3 and 4
* XXX: Big WTF, but RealTek seems to do it */
rtl_set(dev, RTL_REG_EN_TRUNK, 1);
rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 1);
/* execute the software reset */
rtl_set(dev, RTL_REG_RESET, 1);
/* wait for the reset to complete,
* but don't wait for too long */
for (i = 0; i < 10; i++) {
if (rtl_get(dev, RTL_REG_RESET) == 0)
break;
msleep(1);
}
/* enable rx/tx from PHYs */
for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) {
rtl_port_set_enable(dev, i, 1);
}
/* restore trunking settings */
rtl_set(dev, RTL_REG_EN_TRUNK, trunk_en);
rtl_set(dev, RTL_REG_TRUNK_PORTSEL, trunk_psel);
rtl_phy_restore(dev, 5, &port5);
rtl_set(dev, RTL_REG_CPU_LINKUP, 1);
return 0;
}
static void
rtl_hw_init(struct switch_dev *dev)
{
struct rtl_priv *priv = to_rtl(dev);
int cpu_mask = 1 << dev->cpu_port;
int i;
rtl_set(dev, RTL_REG_VLAN_ENABLE, 0);
rtl_set(dev, RTL_REG_VLAN_FILTER, 0);
rtl_set(dev, RTL_REG_EN_TRUNK, 0);
rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 0);
/* initialize cpu port settings */
if (priv->do_cpu) {
rtl_set(dev, RTL_REG_CPUPORT, dev->cpu_port);
rtl_set(dev, RTL_REG_EN_CPUPORT, 1);
} else {
rtl_set(dev, RTL_REG_CPUPORT, 7);
rtl_set(dev, RTL_REG_EN_CPUPORT, 0);
}
rtl_set(dev, RTL_REG_EN_TAG_OUT, 0);
rtl_set(dev, RTL_REG_EN_TAG_IN, 0);
rtl_set(dev, RTL_REG_EN_TAG_CLR, 0);
/* reset all vlans */
for (i = 0; i < RTL8306_NUM_VLANS; i++) {
rtl_set(dev, RTL_VLAN_REG(i, VID), i);
rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), 0);
}
/* default to port isolation */
for (i = 0; i < RTL8306_NUM_PORTS; i++) {
unsigned long mask;
if ((1 << i) == cpu_mask)
mask = ((1 << RTL8306_NUM_PORTS) - 1) & ~cpu_mask; /* all bits set */
else
mask = cpu_mask | (1 << i);
rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), mask);
rtl_set(dev, RTL_PORT_REG(i, PVID), i);
rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1);
rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), 3);
}
rtl_hw_apply(dev);
}
#ifdef DEBUG
static int
rtl_set_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct rtl_priv *priv = to_rtl(dev);
priv->do_cpu = val->value.i;
rtl_hw_init(dev);
return 0;
}
static int
rtl_get_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct rtl_priv *priv = to_rtl(dev);
val->value.i = priv->do_cpu;
return 0;
}
static int
rtl_set_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
dev->cpu_port = val->value.i;
rtl_hw_init(dev);
return 0;
}
static int
rtl_get_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
val->value.i = dev->cpu_port;
return 0;
}
#endif
static int
rtl_reset(struct switch_dev *dev)
{
rtl_hw_init(dev);
return 0;
}
static int
rtl_attr_set_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
int idx = attr->id + (val->port_vlan * attr->ofs);
struct rtl_phyregs port;
if (attr->id >= ARRAY_SIZE(rtl_regs))
return -EINVAL;
if ((attr->max > 0) && (val->value.i > attr->max))
return -EINVAL;
/* access to phy register 22 on port 4/5
* needs phy status save/restore */
if ((val->port_vlan > 3) &&
(rtl_regs[idx].reg == 22) &&
(rtl_regs[idx].page == 0)) {
rtl_phy_save(dev, val->port_vlan, &port);
rtl_set(dev, idx, val->value.i);
rtl_phy_restore(dev, val->port_vlan, &port);
} else {
rtl_set(dev, idx, val->value.i);
}
return 0;
}
static int
rtl_attr_get_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
int idx = attr->id + (val->port_vlan * attr->ofs);
if (idx >= ARRAY_SIZE(rtl_regs))
return -EINVAL;
val->value.i = rtl_get(dev, idx);
return 0;
}
static int
rtl_attr_set_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
if (val->port_vlan >= RTL8306_NUM_PORTS)
return -EINVAL;
return rtl_attr_set_int(dev, attr, val);
}
static int
rtl_attr_get_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
if (val->port_vlan >= RTL8306_NUM_PORTS)
return -EINVAL;
return rtl_attr_get_int(dev, attr, val);
}
static int
rtl_get_port_link(struct switch_dev *dev, int port, struct switch_port_link *link)
{
if (port >= RTL8306_NUM_PORTS)
return -EINVAL;
/* in case the link changes from down to up, the register is only updated on read */
link->link = rtl_get(dev, RTL_PORT_REG(port, LINK));
if (!link->link)
link->link = rtl_get(dev, RTL_PORT_REG(port, LINK));
if (!link->link)
return 0;
link->duplex = rtl_get(dev, RTL_PORT_REG(port, DUPLEX));
link->aneg = rtl_get(dev, RTL_PORT_REG(port, NWAY));
if (rtl_get(dev, RTL_PORT_REG(port, SPEED)))
link->speed = SWITCH_PORT_SPEED_100;
else
link->speed = SWITCH_PORT_SPEED_10;
return 0;
}
static int
rtl_attr_set_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
if (val->port_vlan >= dev->vlans)
return -EINVAL;
return rtl_attr_set_int(dev, attr, val);
}
static int
rtl_attr_get_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
if (val->port_vlan >= dev->vlans)
return -EINVAL;
return rtl_attr_get_int(dev, attr, val);
}
static int
rtl_get_ports(struct switch_dev *dev, struct switch_val *val)
{
unsigned int i, mask;
mask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK));
for (i = 0; i < RTL8306_NUM_PORTS; i++) {
struct switch_port *port;
if (!(mask & (1 << i)))
continue;
port = &val->value.ports[val->len];
port->id = i;
if (rtl_get(dev, RTL_PORT_REG(i, TAG_INSERT)) == 2 || i == dev->cpu_port)
port->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
val->len++;
}
return 0;
}
static int
rtl_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
struct rtl_priv *priv = to_rtl(dev);
struct rtl_phyregs port;
int en = val->value.i;
int i;
rtl_set(dev, RTL_REG_EN_TAG_OUT, en && priv->do_cpu);
rtl_set(dev, RTL_REG_EN_TAG_IN, en && priv->do_cpu);
rtl_set(dev, RTL_REG_EN_TAG_CLR, en && priv->do_cpu);
rtl_set(dev, RTL_REG_VLAN_TAG_AWARE, en);
if (en)
rtl_set(dev, RTL_REG_VLAN_FILTER, en);
for (i = 0; i < RTL8306_NUM_PORTS; i++) {
if (i > 3)
rtl_phy_save(dev, val->port_vlan, &port);
rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), (en ? (i == dev->cpu_port ? 0 : 1) : 1));
rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), (en ? (i == dev->cpu_port ? 2 : 1) : 3));
if (i > 3)
rtl_phy_restore(dev, val->port_vlan, &port);
}
rtl_set(dev, RTL_REG_VLAN_ENABLE, en);
return 0;
}
static int
rtl_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
{
val->value.i = rtl_get(dev, RTL_REG_VLAN_ENABLE);
return 0;
}
static int
rtl_set_ports(struct switch_dev *dev, struct switch_val *val)
{
unsigned int mask = 0;
unsigned int oldmask;
int i;
for(i = 0; i < val->len; i++)
{
struct switch_port *port = &val->value.ports[i];
bool tagged = false;
mask |= (1 << port->id);
if (port->id == dev->cpu_port)
continue;
if ((i == dev->cpu_port) ||
(port->flags & (1 << SWITCH_PORT_FLAG_TAGGED)))
tagged = true;
/* fix up PVIDs for added ports */
if (!tagged)
rtl_set(dev, RTL_PORT_REG(port->id, PVID), val->port_vlan);
rtl_set(dev, RTL_PORT_REG(port->id, NON_PVID_DISCARD), (tagged ? 0 : 1));
rtl_set(dev, RTL_PORT_REG(port->id, VID_INSERT), (tagged ? 0 : 1));
rtl_set(dev, RTL_PORT_REG(port->id, TAG_INSERT), (tagged ? 2 : 1));
}
oldmask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK));
rtl_set(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK), mask);
/* fix up PVIDs for removed ports, default to last vlan */
oldmask &= ~mask;
for (i = 0; i < RTL8306_NUM_PORTS; i++) {
if (!(oldmask & (1 << i)))
continue;
if (i == dev->cpu_port)
continue;
if (rtl_get(dev, RTL_PORT_REG(i, PVID)) == val->port_vlan)
rtl_set(dev, RTL_PORT_REG(i, PVID), dev->vlans - 1);
}
return 0;
}
static struct switch_attr rtl_globals[] = {
{
.type = SWITCH_TYPE_INT,
.name = "enable_vlan",
.description = "Enable VLAN mode",
.max = 1,
.set = rtl_set_vlan,
.get = rtl_get_vlan,
},
{
RTL_GLOBAL_REGATTR(EN_TRUNK),
.name = "trunk",
.description = "Enable port trunking",
.max = 1,
},
{
RTL_GLOBAL_REGATTR(TRUNK_PORTSEL),
.name = "trunk_sel",
.description = "Select ports for trunking (0: 0,1 - 1: 3,4)",
.max = 1,
},
#ifdef DEBUG
{
RTL_GLOBAL_REGATTR(VLAN_FILTER),
.name = "vlan_filter",
.description = "Filter incoming packets for allowed VLANS",
.max = 1,
},
{
.type = SWITCH_TYPE_INT,
.name = "cpuport",
.description = "CPU Port",
.set = rtl_set_cpuport,
.get = rtl_get_cpuport,
.max = RTL8306_NUM_PORTS,
},
{
.type = SWITCH_TYPE_INT,
.name = "use_cpuport",
.description = "CPU Port handling flag",
.set = rtl_set_use_cpuport,
.get = rtl_get_use_cpuport,
.max = RTL8306_NUM_PORTS,
},
{
RTL_GLOBAL_REGATTR(TRAP_CPU),
.name = "trap_cpu",
.description = "VLAN trap to CPU",
.max = 1,
},
{
RTL_GLOBAL_REGATTR(VLAN_TAG_AWARE),
.name = "vlan_tag_aware",
.description = "Enable VLAN tag awareness",
.max = 1,
},
{
RTL_GLOBAL_REGATTR(VLAN_TAG_ONLY),
.name = "tag_only",
.description = "Only accept tagged packets",
.max = 1,
},
#endif
};
static struct switch_attr rtl_port[] = {
{
RTL_PORT_REGATTR(PVID),
.name = "pvid",
.description = "Port VLAN ID",
.max = RTL8306_NUM_VLANS - 1,
},
#ifdef DEBUG
{
RTL_PORT_REGATTR(NULL_VID_REPLACE),
.name = "null_vid",
.description = "NULL VID gets replaced by port default vid",
.max = 1,
},
{
RTL_PORT_REGATTR(NON_PVID_DISCARD),
.name = "non_pvid_discard",
.description = "discard packets with VID != PVID",
.max = 1,
},
{
RTL_PORT_REGATTR(VID_INSERT),
.name = "vid_insert_remove",
.description = "how should the switch insert and remove vids ?",
.max = 3,
},
{
RTL_PORT_REGATTR(TAG_INSERT),
.name = "tag_insert",
.description = "tag insertion handling",
.max = 3,
},
#endif
};
static struct switch_attr rtl_vlan[] = {
{
RTL_VLAN_REGATTR(VID),
.name = "vid",
.description = "VLAN ID (1-4095)",
.max = 4095,
},
};
static const struct switch_dev_ops rtl8306_ops = {
.attr_global = {
.attr = rtl_globals,
.n_attr = ARRAY_SIZE(rtl_globals),
},
.attr_port = {
.attr = rtl_port,
.n_attr = ARRAY_SIZE(rtl_port),
},
.attr_vlan = {
.attr = rtl_vlan,
.n_attr = ARRAY_SIZE(rtl_vlan),
},
.get_vlan_ports = rtl_get_ports,
.set_vlan_ports = rtl_set_ports,
.apply_config = rtl_hw_apply,
.reset_switch = rtl_reset,
.get_port_link = rtl_get_port_link,
};
static int
rtl8306_config_init(struct phy_device *pdev)
{
struct net_device *netdev = pdev->attached_dev;
struct rtl_priv *priv = pdev->priv;
struct switch_dev *dev = &priv->dev;
struct switch_val val;
unsigned int chipid, chipver, chiptype;
int err;
/* Only init the switch for the primary PHY */
if (pdev->mdio.addr != 0)
return 0;
val.value.i = 1;
priv->dev.cpu_port = RTL8306_PORT_CPU;
priv->dev.ports = RTL8306_NUM_PORTS;
priv->dev.vlans = RTL8306_NUM_VLANS;
priv->dev.ops = &rtl8306_ops;
priv->do_cpu = 0;
priv->page = -1;
priv->bus = pdev->mdio.bus;
chipid = rtl_get(dev, RTL_REG_CHIPID);
chipver = rtl_get(dev, RTL_REG_CHIPVER);
chiptype = rtl_get(dev, RTL_REG_CHIPTYPE);
switch(chiptype) {
case 0:
case 2:
strncpy(priv->hwname, RTL_NAME_S, sizeof(priv->hwname));
priv->type = RTL_TYPE_S;
break;
case 1:
strncpy(priv->hwname, RTL_NAME_SD, sizeof(priv->hwname));
priv->type = RTL_TYPE_SD;
break;
case 3:
strncpy(priv->hwname, RTL_NAME_SDM, sizeof(priv->hwname));
priv->type = RTL_TYPE_SDM;
break;
default:
strncpy(priv->hwname, RTL_NAME_UNKNOWN, sizeof(priv->hwname));
break;
}
dev->name = priv->hwname;
rtl_hw_init(dev);
printk(KERN_INFO "Registering %s switch with Chip ID: 0x%04x, version: 0x%04x\n", priv->hwname, chipid, chipver);
err = register_switch(dev, netdev);
if (err < 0) {
kfree(priv);
return err;
}
return 0;
}
static int
rtl8306_fixup(struct phy_device *pdev)
{
struct rtl_priv priv;
u16 chipid;
/* Attach to primary LAN port and WAN port */
if (pdev->mdio.addr != 0 && pdev->mdio.addr != 4)
return 0;
memset(&priv, 0, sizeof(priv));
priv.fixup = true;
priv.page = -1;
priv.bus = pdev->mdio.bus;
chipid = rtl_get(&priv.dev, RTL_REG_CHIPID);
if (chipid == 0x5988)
pdev->phy_id = RTL8306_MAGIC;
return 0;
}
static int
rtl8306_probe(struct phy_device *pdev)
{
struct rtl_priv *priv;
list_for_each_entry(priv, &phydevs, list) {
/*
* share one rtl_priv instance between virtual phy
* devices on the same bus
*/
if (priv->bus == pdev->mdio.bus)
goto found;
}
priv = kzalloc(sizeof(struct rtl_priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->bus = pdev->mdio.bus;
found:
pdev->priv = priv;
return 0;
}
static void
rtl8306_remove(struct phy_device *pdev)
{
struct rtl_priv *priv = pdev->priv;
unregister_switch(&priv->dev);
kfree(priv);
}
static int
rtl8306_config_aneg(struct phy_device *pdev)
{
struct rtl_priv *priv = pdev->priv;
/* Only for WAN */
if (pdev->mdio.addr == 0)
return 0;
/* Restart autonegotiation */
rtl_set(&priv->dev, RTL_PORT_REG(4, NWAY), 1);
rtl_set(&priv->dev, RTL_PORT_REG(4, NRESTART), 1);
return 0;
}
static int
rtl8306_read_status(struct phy_device *pdev)
{
struct rtl_priv *priv = pdev->priv;
struct switch_dev *dev = &priv->dev;
if (pdev->mdio.addr == 4) {
/* WAN */
pdev->speed = rtl_get(dev, RTL_PORT_REG(4, SPEED)) ? SPEED_100 : SPEED_10;
pdev->duplex = rtl_get(dev, RTL_PORT_REG(4, DUPLEX)) ? DUPLEX_FULL : DUPLEX_HALF;
pdev->link = !!rtl_get(dev, RTL_PORT_REG(4, LINK));
} else {
/* LAN */
pdev->speed = SPEED_100;
pdev->duplex = DUPLEX_FULL;
pdev->link = 1;
}
/*
* Bypass generic PHY status read,
* it doesn't work with this switch
*/
if (pdev->link) {
pdev->state = PHY_RUNNING;
netif_carrier_on(pdev->attached_dev);
pdev->adjust_link(pdev->attached_dev);
} else {
pdev->state = PHY_NOLINK;
netif_carrier_off(pdev->attached_dev);
pdev->adjust_link(pdev->attached_dev);
}
return 0;
}
static struct phy_driver rtl8306_driver = {
.name = "Realtek RTL8306S",
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,13,0))
.flags = PHY_HAS_MAGICANEG,
#endif
.phy_id = RTL8306_MAGIC,
.phy_id_mask = 0xffffffff,
.features = PHY_BASIC_FEATURES,
.probe = &rtl8306_probe,
.remove = &rtl8306_remove,
.config_init = &rtl8306_config_init,
.config_aneg = &rtl8306_config_aneg,
.read_status = &rtl8306_read_status,
};
static int __init
rtl_init(void)
{
phy_register_fixup_for_id(PHY_ANY_ID, rtl8306_fixup);
return phy_driver_register(&rtl8306_driver, THIS_MODULE);
}
static void __exit
rtl_exit(void)
{
phy_driver_unregister(&rtl8306_driver);
}
module_init(rtl_init);
module_exit(rtl_exit);
MODULE_LICENSE("GPL");