move the updated version (for 2.6.30+) of ar8216/mvswitch to the generic files directory and remove patches for older kernel versions (no longer in use)
SVN-Revision: 17594master
parent
8bf5ee0324
commit
30e635c55b
@ -1,651 +0,0 @@ |
||||
/*
|
||||
* ar8216.c: AR8216 switch driver |
||||
* |
||||
* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License |
||||
* as published by the Free Software Foundation; either version 2 |
||||
* of the License, or (at your option) any later version. |
||||
* |
||||
* 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 <linux/bitops.h> |
||||
#include <net/genetlink.h> |
||||
#include <linux/switch.h> |
||||
#include <linux/delay.h> |
||||
#include <linux/phy.h> |
||||
#include <linux/netdevice.h> |
||||
#include <linux/etherdevice.h> |
||||
#include "ar8216.h" |
||||
|
||||
|
||||
struct ar8216_priv { |
||||
struct switch_dev dev; |
||||
struct phy_device *phy; |
||||
u32 (*read)(struct ar8216_priv *priv, int reg); |
||||
void (*write)(struct ar8216_priv *priv, int reg, u32 val); |
||||
const struct net_device_ops *ndo_old; |
||||
struct net_device_ops ndo; |
||||
|
||||
/* all fields below are cleared on reset */ |
||||
bool vlan; |
||||
u8 vlan_id[AR8216_NUM_VLANS]; |
||||
u8 vlan_table[AR8216_NUM_VLANS]; |
||||
u8 vlan_tagged; |
||||
u16 pvid[AR8216_NUM_PORTS]; |
||||
}; |
||||
static struct switch_dev athdev; |
||||
|
||||
#define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev) |
||||
|
||||
static inline void |
||||
split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page) |
||||
{ |
||||
regaddr >>= 1; |
||||
*r1 = regaddr & 0x1e; |
||||
|
||||
regaddr >>= 5; |
||||
*r2 = regaddr & 0x7; |
||||
|
||||
regaddr >>= 3; |
||||
*page = regaddr & 0x1ff; |
||||
} |
||||
|
||||
static u32 |
||||
ar8216_mii_read(struct ar8216_priv *priv, int reg) |
||||
{ |
||||
struct phy_device *phy = priv->phy; |
||||
u16 r1, r2, page; |
||||
u16 lo, hi; |
||||
|
||||
split_addr((u32) reg, &r1, &r2, &page); |
||||
phy->bus->write(phy->bus, 0x18, 0, page); |
||||
msleep(1); /* wait for the page switch to propagate */ |
||||
lo = phy->bus->read(phy->bus, 0x10 | r2, r1); |
||||
hi = phy->bus->read(phy->bus, 0x10 | r2, r1 + 1); |
||||
|
||||
return (hi << 16) | lo; |
||||
} |
||||
|
||||
static void |
||||
ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val) |
||||
{ |
||||
struct phy_device *phy = priv->phy; |
||||
u16 r1, r2, r3; |
||||
u16 lo, hi; |
||||
|
||||
split_addr((u32) reg, &r1, &r2, &r3); |
||||
phy->bus->write(phy->bus, 0x18, 0, r3); |
||||
msleep(1); /* wait for the page switch to propagate */ |
||||
|
||||
lo = val & 0xffff; |
||||
hi = (u16) (val >> 16); |
||||
phy->bus->write(phy->bus, 0x10 | r2, r1 + 1, hi); |
||||
phy->bus->write(phy->bus, 0x10 | r2, r1, lo); |
||||
} |
||||
|
||||
static u32 |
||||
ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val) |
||||
{ |
||||
u32 v; |
||||
|
||||
v = priv->read(priv, reg); |
||||
v &= ~mask; |
||||
v |= val; |
||||
priv->write(priv, reg, v); |
||||
|
||||
return v; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->vlan = !!val->value.i; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
val->value.i = priv->vlan; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
ar8216_set_pvid(struct switch_dev *dev, int port, int vlan) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->pvid[port] = vlan; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_pvid(struct switch_dev *dev, int port, int *vlan) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
*vlan = priv->pvid[port]; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_vid(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->vlan_id[val->port_vlan] = val->value.i; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_vid(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
val->value.i = priv->vlan_id[val->port_vlan]; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
ar8216_mangle_tx(struct sk_buff *skb, struct net_device *dev) |
||||
{ |
||||
struct ar8216_priv *priv = dev->phy_ptr; |
||||
unsigned char *buf; |
||||
|
||||
if (unlikely(!priv)) |
||||
goto error; |
||||
|
||||
if (!priv->vlan) |
||||
goto send; |
||||
|
||||
if (unlikely(skb_headroom(skb) < 2)) { |
||||
if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0) |
||||
goto error; |
||||
} |
||||
|
||||
buf = skb_push(skb, 2); |
||||
buf[0] = 0x10; |
||||
buf[1] = 0x80; |
||||
|
||||
send: |
||||
return priv->ndo_old->ndo_start_xmit(skb, dev); |
||||
|
||||
error: |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_mangle_rx(struct sk_buff *skb, int napi) |
||||
{ |
||||
struct ar8216_priv *priv; |
||||
struct net_device *dev; |
||||
unsigned char *buf; |
||||
int port, vlan; |
||||
|
||||
dev = skb->dev; |
||||
if (!dev) |
||||
goto error; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (!priv) |
||||
goto error; |
||||
|
||||
/* don't strip the header if vlan mode is disabled */ |
||||
if (!priv->vlan) |
||||
goto recv; |
||||
|
||||
/* strip header, get vlan id */ |
||||
buf = skb->data; |
||||
skb_pull(skb, 2); |
||||
|
||||
/* check for vlan header presence */ |
||||
if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00)) |
||||
goto recv; |
||||
|
||||
port = buf[0] & 0xf; |
||||
|
||||
/* no need to fix up packets coming from a tagged source */ |
||||
if (priv->vlan_tagged & (1 << port)) |
||||
goto recv; |
||||
|
||||
/* lookup port vid from local table, the switch passes an invalid vlan id */ |
||||
vlan = priv->pvid[port]; |
||||
|
||||
buf[14 + 2] &= 0xf0; |
||||
buf[14 + 2] |= vlan >> 8; |
||||
buf[15 + 2] = vlan & 0xff; |
||||
|
||||
recv: |
||||
skb->protocol = eth_type_trans(skb, skb->dev); |
||||
|
||||
if (napi) |
||||
return netif_receive_skb(skb); |
||||
else |
||||
return netif_rx(skb); |
||||
|
||||
error: |
||||
/* no vlan? eat the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_netif_rx(struct sk_buff *skb) |
||||
{ |
||||
return ar8216_mangle_rx(skb, 0); |
||||
} |
||||
|
||||
static int |
||||
ar8216_netif_receive_skb(struct sk_buff *skb) |
||||
{ |
||||
return ar8216_mangle_rx(skb, 1); |
||||
} |
||||
|
||||
|
||||
static struct switch_attr ar8216_globals[] = { |
||||
{ |
||||
.type = SWITCH_TYPE_INT, |
||||
.name = "enable_vlan", |
||||
.description = "Enable VLAN mode", |
||||
.set = ar8216_set_vlan, |
||||
.get = ar8216_get_vlan, |
||||
.max = 1 |
||||
}, |
||||
}; |
||||
|
||||
static struct switch_attr ar8216_port[] = { |
||||
}; |
||||
|
||||
static struct switch_attr ar8216_vlan[] = { |
||||
{ |
||||
.type = SWITCH_TYPE_INT, |
||||
.name = "pvid", |
||||
.description = "VLAN ID", |
||||
.set = ar8216_set_vid, |
||||
.get = ar8216_get_vid, |
||||
.max = 4095, |
||||
}, |
||||
}; |
||||
|
||||
|
||||
static int |
||||
ar8216_get_ports(struct switch_dev *dev, struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 ports = priv->vlan_table[val->port_vlan]; |
||||
int i; |
||||
|
||||
val->len = 0; |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
struct switch_port *p; |
||||
|
||||
if (!(ports & (1 << i))) |
||||
continue; |
||||
|
||||
p = &val->value.ports[val->len++]; |
||||
p->id = i; |
||||
if (priv->vlan_tagged & (1 << i)) |
||||
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED); |
||||
else |
||||
p->flags = 0; |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_ports(struct switch_dev *dev, struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 *vt = &priv->vlan_table[val->port_vlan]; |
||||
int i, j; |
||||
|
||||
*vt = 0; |
||||
for (i = 0; i < val->len; i++) { |
||||
struct switch_port *p = &val->value.ports[i]; |
||||
|
||||
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) |
||||
priv->vlan_tagged |= (1 << p->id); |
||||
else { |
||||
priv->vlan_tagged &= ~(1 << p->id); |
||||
priv->pvid[p->id] = val->port_vlan; |
||||
|
||||
/* make sure that an untagged port does not
|
||||
* appear in other vlans */ |
||||
for (j = 0; j < AR8216_NUM_VLANS; j++) { |
||||
if (j == val->port_vlan) |
||||
continue; |
||||
priv->vlan_table[j] &= ~(1 << p->id); |
||||
} |
||||
} |
||||
|
||||
*vt |= 1 << p->id; |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val) |
||||
{ |
||||
int timeout = 20; |
||||
|
||||
while ((priv->read(priv, reg) & mask) != val) { |
||||
if (timeout-- <= 0) { |
||||
printk(KERN_ERR "ar8216: timeout waiting for operation to complete\n"); |
||||
return 1; |
||||
} |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val) |
||||
{ |
||||
if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0)) |
||||
return; |
||||
if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) { |
||||
val &= AR8216_VTUDATA_MEMBER; |
||||
val |= AR8216_VTUDATA_VALID; |
||||
priv->write(priv, AR8216_REG_VTU_DATA, val); |
||||
} |
||||
op |= AR8216_VTU_ACTIVE; |
||||
priv->write(priv, AR8216_REG_VTU, op); |
||||
} |
||||
|
||||
static int |
||||
ar8216_hw_apply(struct switch_dev *dev) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 portmask[AR8216_NUM_PORTS]; |
||||
int i, j; |
||||
|
||||
/* flush all vlan translation unit entries */ |
||||
ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0); |
||||
|
||||
memset(portmask, 0, sizeof(portmask)); |
||||
if (priv->vlan) { |
||||
/* calculate the port destination masks and load vlans
|
||||
* into the vlan translation unit */ |
||||
for (j = 0; j < AR8216_NUM_VLANS; j++) { |
||||
u8 vp = priv->vlan_table[j]; |
||||
|
||||
if (!vp) |
||||
continue; |
||||
|
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
u8 mask = (1 << i); |
||||
if (vp & mask) |
||||
portmask[i] |= vp & ~mask; |
||||
} |
||||
|
||||
if (!priv->vlan_table[j]) |
||||
continue; |
||||
|
||||
ar8216_vtu_op(priv, |
||||
AR8216_VTU_OP_LOAD | |
||||
(priv->vlan_id[j] << AR8216_VTU_VID_S), |
||||
priv->vlan_table[j]); |
||||
} |
||||
} else { |
||||
/* vlan disabled:
|
||||
* isolate all ports, but connect them to the cpu port */ |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
if (i == AR8216_PORT_CPU) |
||||
continue; |
||||
|
||||
portmask[i] = 1 << AR8216_PORT_CPU; |
||||
portmask[AR8216_PORT_CPU] |= (1 << i); |
||||
} |
||||
} |
||||
|
||||
/* update the port destination mask registers and tag settings */ |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
int egress, ingress; |
||||
int pvid; |
||||
|
||||
if (priv->vlan) { |
||||
pvid = priv->vlan_id[priv->pvid[i]]; |
||||
} else { |
||||
pvid = i; |
||||
} |
||||
|
||||
if (priv->vlan && (priv->vlan_tagged & (1 << i))) { |
||||
egress = AR8216_OUT_ADD_VLAN; |
||||
} else { |
||||
egress = AR8216_OUT_STRIP_VLAN; |
||||
} |
||||
ingress = AR8216_IN_SECURE; |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_PORT_CTRL(i), |
||||
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE | |
||||
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE | |
||||
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK, |
||||
AR8216_PORT_CTRL_LEARN | |
||||
(priv->vlan && i == AR8216_PORT_CPU ? |
||||
AR8216_PORT_CTRL_HEADER : 0) | |
||||
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) | |
||||
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S)); |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_PORT_VLAN(i), |
||||
AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE | |
||||
AR8216_PORT_VLAN_DEFAULT_ID, |
||||
(portmask[i] << AR8216_PORT_VLAN_DEST_PORTS_S) | |
||||
(ingress << AR8216_PORT_VLAN_MODE_S) | |
||||
(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S)); |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_reset_switch(struct switch_dev *dev) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
int i; |
||||
|
||||
memset(&priv->vlan, 0, sizeof(struct ar8216_priv) - |
||||
offsetof(struct ar8216_priv, vlan)); |
||||
for (i = 0; i < AR8216_NUM_VLANS; i++) { |
||||
priv->vlan_id[i] = i; |
||||
} |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
/* Enable port learning and tx */ |
||||
priv->write(priv, AR8216_REG_PORT_CTRL(i), |
||||
AR8216_PORT_CTRL_LEARN | |
||||
(4 << AR8216_PORT_CTRL_STATE_S)); |
||||
|
||||
priv->write(priv, AR8216_REG_PORT_VLAN(i), 0); |
||||
|
||||
/* Configure all PHYs */ |
||||
if (i == AR8216_PORT_CPU) { |
||||
priv->write(priv, AR8216_REG_PORT_STATUS(i), |
||||
AR8216_PORT_STATUS_LINK_UP | |
||||
AR8216_PORT_STATUS_SPEED | |
||||
AR8216_PORT_STATUS_TXMAC | |
||||
AR8216_PORT_STATUS_RXMAC | |
||||
AR8216_PORT_STATUS_DUPLEX); |
||||
} else { |
||||
priv->write(priv, AR8216_REG_PORT_STATUS(i), |
||||
AR8216_PORT_STATUS_LINK_AUTO); |
||||
} |
||||
} |
||||
/* XXX: undocumented magic from atheros, required! */ |
||||
priv->write(priv, 0x38, 0xc000050e); |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL, |
||||
AR8216_GCTRL_MTU, 1518 + 8 + 2); |
||||
|
||||
return ar8216_hw_apply(dev); |
||||
} |
||||
|
||||
static int |
||||
ar8216_config_init(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv *priv; |
||||
struct net_device *dev = pdev->attached_dev; |
||||
int ret; |
||||
|
||||
printk("%s: AR8216 PHY driver attached.\n", pdev->attached_dev->name); |
||||
pdev->supported = ADVERTISED_100baseT_Full; |
||||
pdev->advertising = ADVERTISED_100baseT_Full; |
||||
|
||||
priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL); |
||||
if (priv == NULL) |
||||
return -ENOMEM; |
||||
|
||||
priv->phy = pdev; |
||||
priv->read = ar8216_mii_read; |
||||
priv->write = ar8216_mii_write; |
||||
memcpy(&priv->dev, &athdev, sizeof(struct switch_dev)); |
||||
pdev->priv = priv; |
||||
if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) { |
||||
kfree(priv); |
||||
goto done; |
||||
} |
||||
|
||||
ret = ar8216_reset_switch(&priv->dev); |
||||
if (ret) |
||||
goto done; |
||||
|
||||
dev->phy_ptr = priv; |
||||
pdev->pkt_align = 2; |
||||
pdev->netif_receive_skb = ar8216_netif_receive_skb; |
||||
pdev->netif_rx = ar8216_netif_rx; |
||||
|
||||
priv->ndo_old = dev->netdev_ops; |
||||
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops)); |
||||
priv->ndo.ndo_start_xmit = ar8216_mangle_tx; |
||||
dev->netdev_ops = &priv->ndo; |
||||
|
||||
done: |
||||
return ret; |
||||
} |
||||
|
||||
static int |
||||
ar8216_read_status(struct phy_device *phydev) |
||||
{ |
||||
struct ar8216_priv *priv = phydev->priv; |
||||
|
||||
phydev->speed = SPEED_100; |
||||
phydev->duplex = DUPLEX_FULL; |
||||
phydev->state = PHY_UP; |
||||
|
||||
/* flush the address translation unit */ |
||||
if (ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0)) |
||||
return -ETIMEDOUT; |
||||
|
||||
priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_config_aneg(struct phy_device *phydev) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_probe(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv priv; |
||||
|
||||
u8 id, rev; |
||||
u32 val; |
||||
|
||||
priv.phy = pdev; |
||||
val = ar8216_mii_read(&priv, AR8216_REG_CTRL); |
||||
rev = val & 0xff; |
||||
id = (val >> 8) & 0xff; |
||||
if ((id != 1) || (rev != 1)) |
||||
return -ENODEV; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
ar8216_remove(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv *priv = pdev->priv; |
||||
struct net_device *dev = pdev->attached_dev; |
||||
|
||||
if (!priv) |
||||
return; |
||||
|
||||
if (priv->ndo_old && dev) |
||||
dev->netdev_ops = priv->ndo_old; |
||||
unregister_switch(&priv->dev); |
||||
kfree(priv); |
||||
} |
||||
|
||||
/* template */ |
||||
static struct switch_dev athdev = { |
||||
.name = "Atheros AR8216", |
||||
.cpu_port = AR8216_PORT_CPU, |
||||
.ports = AR8216_NUM_PORTS, |
||||
.vlans = AR8216_NUM_VLANS, |
||||
.attr_global = { |
||||
.attr = ar8216_globals, |
||||
.n_attr = ARRAY_SIZE(ar8216_globals), |
||||
}, |
||||
.attr_port = { |
||||
.attr = ar8216_port, |
||||
.n_attr = ARRAY_SIZE(ar8216_port), |
||||
}, |
||||
.attr_vlan = { |
||||
.attr = ar8216_vlan, |
||||
.n_attr = ARRAY_SIZE(ar8216_vlan), |
||||
}, |
||||
.get_port_pvid = ar8216_get_pvid, |
||||
.set_port_pvid = ar8216_set_pvid, |
||||
.get_vlan_ports = ar8216_get_ports, |
||||
.set_vlan_ports = ar8216_set_ports, |
||||
.apply_config = ar8216_hw_apply, |
||||
.reset_switch = ar8216_reset_switch, |
||||
}; |
||||
|
||||
static struct phy_driver ar8216_driver = { |
||||
.name = "Atheros AR8216", |
||||
.features = PHY_BASIC_FEATURES, |
||||
.probe = ar8216_probe, |
||||
.remove = ar8216_remove, |
||||
.config_init = &ar8216_config_init, |
||||
.config_aneg = &ar8216_config_aneg, |
||||
.read_status = &ar8216_read_status, |
||||
.driver = { .owner = THIS_MODULE }, |
||||
}; |
||||
|
||||
int __init |
||||
ar8216_init(void) |
||||
{ |
||||
return phy_driver_register(&ar8216_driver); |
||||
} |
||||
|
||||
void __exit |
||||
ar8216_exit(void) |
||||
{ |
||||
phy_driver_unregister(&ar8216_driver); |
||||
} |
||||
|
||||
module_init(ar8216_init); |
||||
module_exit(ar8216_exit); |
||||
MODULE_LICENSE("GPL"); |
||||
|
@ -1,470 +0,0 @@ |
||||
/*
|
||||
* Marvell 88E6060 switch driver |
||||
* Copyright (c) 2008 Felix Fietkau <nbd@openwrt.org> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify it |
||||
* under the terms of the GNU General Public License v2 as published by the |
||||
* Free Software Foundation |
||||
*/ |
||||
#include <linux/kernel.h> |
||||
#include <linux/string.h> |
||||
#include <linux/errno.h> |
||||
#include <linux/unistd.h> |
||||
#include <linux/slab.h> |
||||
#include <linux/interrupt.h> |
||||
#include <linux/init.h> |
||||
#include <linux/delay.h> |
||||
#include <linux/netdevice.h> |
||||
#include <linux/etherdevice.h> |
||||
#include <linux/skbuff.h> |
||||
#include <linux/spinlock.h> |
||||
#include <linux/mm.h> |
||||
#include <linux/module.h> |
||||
#include <linux/mii.h> |
||||
#include <linux/ethtool.h> |
||||
#include <linux/phy.h> |
||||
#include <linux/if_vlan.h> |
||||
|
||||
#include <asm/io.h> |
||||
#include <asm/irq.h> |
||||
#include <asm/uaccess.h> |
||||
#include "mvswitch.h" |
||||
|
||||
/* Undefine this to use trailer mode instead.
|
||||
* I don't know if header mode works with all chips */ |
||||
#define HEADER_MODE 1 |
||||
|
||||
MODULE_DESCRIPTION("Marvell 88E6060 Switch driver"); |
||||
MODULE_AUTHOR("Felix Fietkau"); |
||||
MODULE_LICENSE("GPL"); |
||||
|
||||
#define MVSWITCH_MAGIC 0x88E6060 |
||||
|
||||
struct mvswitch_priv { |
||||
const struct net_device_ops *ndo_old; |
||||
struct net_device_ops ndo; |
||||
struct vlan_group *grp; |
||||
u8 vlans[16]; |
||||
}; |
||||
|
||||
#define to_mvsw(_phy) ((struct mvswitch_priv *) (_phy)->priv) |
||||
|
||||
static inline u16 |
||||
r16(struct phy_device *phydev, int addr, int reg) |
||||
{ |
||||
return phydev->bus->read(phydev->bus, addr, reg); |
||||
} |
||||
|
||||
static inline void |
||||
w16(struct phy_device *phydev, int addr, int reg, u16 val) |
||||
{ |
||||
phydev->bus->write(phydev->bus, addr, reg, val); |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_mangle_tx(struct sk_buff *skb, struct net_device *dev) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
char *buf = NULL; |
||||
u16 vid; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (unlikely(!priv)) |
||||
goto error; |
||||
|
||||
if (unlikely(skb->len < 16)) |
||||
goto error; |
||||
|
||||
#ifdef HEADER_MODE |
||||
if (__vlan_hwaccel_get_tag(skb, &vid)) |
||||
goto error; |
||||
|
||||
if (skb_cloned(skb) || (skb->len <= 62) || (skb_headroom(skb) < MV_HEADER_SIZE)) { |
||||
if (pskb_expand_head(skb, MV_HEADER_SIZE, (skb->len < 62 ? 62 - skb->len : 0), GFP_ATOMIC)) |
||||
goto error_expand; |
||||
if (skb->len < 62) |
||||
skb->len = 62; |
||||
} |
||||
buf = skb_push(skb, MV_HEADER_SIZE); |
||||
#else |
||||
if (__vlan_get_tag(skb, &vid)) |
||||
goto error; |
||||
|
||||
if (unlikely((vid > 15 || !priv->vlans[vid]))) |
||||
goto error; |
||||
|
||||
if (skb->len <= 64) { |
||||
if (pskb_expand_head(skb, 0, 64 + MV_TRAILER_SIZE - skb->len, GFP_ATOMIC)) |
||||
goto error_expand; |
||||
|
||||
buf = skb->data + 64; |
||||
skb->len = 64 + MV_TRAILER_SIZE; |
||||
} else { |
||||
if (skb_cloned(skb) || unlikely(skb_tailroom(skb) < 4)) { |
||||
if (pskb_expand_head(skb, 0, 4, GFP_ATOMIC)) |
||||
goto error_expand; |
||||
} |
||||
buf = skb_put(skb, 4); |
||||
} |
||||
|
||||
/* move the ethernet header 4 bytes forward, overwriting the vlan tag */ |
||||
memmove(skb->data + 4, skb->data, 12); |
||||
skb->data += 4; |
||||
skb->len -= 4; |
||||
skb->mac_header += 4; |
||||
#endif |
||||
|
||||
if (!buf) |
||||
goto error; |
||||
|
||||
|
||||
#ifdef HEADER_MODE |
||||
/* prepend the tag */ |
||||
*((__be16 *) buf) = cpu_to_be16( |
||||
((vid << MV_HEADER_VLAN_S) & MV_HEADER_VLAN_M) | |
||||
((priv->vlans[vid] << MV_HEADER_PORTS_S) & MV_HEADER_PORTS_M) |
||||
); |
||||
#else |
||||
/* append the tag */ |
||||
*((__be32 *) buf) = cpu_to_be32(( |
||||
(MV_TRAILER_OVERRIDE << MV_TRAILER_FLAGS_S) | |
||||
((priv->vlans[vid] & MV_TRAILER_PORTS_M) << MV_TRAILER_PORTS_S) |
||||
)); |
||||
#endif |
||||
|
||||
return priv->ndo_old->ndo_start_xmit(skb, dev); |
||||
|
||||
error_expand: |
||||
if (net_ratelimit()) |
||||
printk("%s: failed to expand/update skb for the switch\n", dev->name); |
||||
|
||||
error: |
||||
/* any errors? drop the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_mangle_rx(struct sk_buff *skb, int napi) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
struct net_device *dev; |
||||
int vlan = -1; |
||||
unsigned char *buf; |
||||
int i; |
||||
|
||||
dev = skb->dev; |
||||
if (!dev) |
||||
goto error; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (!priv) |
||||
goto error; |
||||
|
||||
if (!priv->grp) |
||||
goto error; |
||||
|
||||
#ifdef HEADER_MODE |
||||
buf = skb->data; |
||||
skb_pull(skb, MV_HEADER_SIZE); |
||||
#else |
||||
buf = skb->data + skb->len - MV_TRAILER_SIZE; |
||||
if (buf[0] != 0x80) |
||||
goto error; |
||||
#endif |
||||
|
||||
/* look for the vlan matching the incoming port */ |
||||
for (i = 0; i < ARRAY_SIZE(priv->vlans); i++) { |
||||
if ((1 << buf[1]) & priv->vlans[i]) |
||||
vlan = i; |
||||
} |
||||
|
||||
if (vlan == -1) |
||||
goto error; |
||||
|
||||
skb->protocol = eth_type_trans(skb, skb->dev); |
||||
|
||||
if (napi) |
||||
return vlan_hwaccel_receive_skb(skb, priv->grp, vlan); |
||||
else |
||||
return vlan_hwaccel_rx(skb, priv->grp, vlan); |
||||
|
||||
error: |
||||
/* no vlan? eat the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_netif_rx(struct sk_buff *skb) |
||||
{ |
||||
return mvswitch_mangle_rx(skb, 0); |
||||
} |
||||
|
||||
static int |
||||
mvswitch_netif_receive_skb(struct sk_buff *skb) |
||||
{ |
||||
return mvswitch_mangle_rx(skb, 1); |
||||
} |
||||
|
||||
|
||||
static void |
||||
mvswitch_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
||||
{ |
||||
struct mvswitch_priv *priv = dev->phy_ptr; |
||||
priv->grp = grp; |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_wait_mask(struct phy_device *pdev, int addr, int reg, u16 mask, u16 val) |
||||
{ |
||||
int i = 100; |
||||
u16 r; |
||||
|
||||
do { |
||||
r = r16(pdev, addr, reg) & mask; |
||||
if (r == val) |
||||
return 0; |
||||
} while(--i > 0); |
||||
return -ETIMEDOUT; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_config_init(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv = to_mvsw(pdev); |
||||
struct net_device *dev = pdev->attached_dev; |
||||
u8 vlmap = 0; |
||||
int i; |
||||
|
||||
if (!dev) |
||||
return -EINVAL; |
||||
|
||||
printk("%s: Marvell 88E6060 PHY driver attached.\n", dev->name); |
||||
pdev->supported = ADVERTISED_100baseT_Full; |
||||
pdev->advertising = ADVERTISED_100baseT_Full; |
||||
dev->phy_ptr = priv; |
||||
dev->irq = PHY_POLL; |
||||
#ifdef HEADER_MODE |
||||
dev->flags |= IFF_PROMISC; |
||||
#endif |
||||
|
||||
/* initialize default vlans */ |
||||
for (i = 0; i < MV_PORTS; i++) |
||||
priv->vlans[(i == MV_WANPORT ? 2 : 1)] |= (1 << i); |
||||
|
||||
/* before entering reset, disable all ports */ |
||||
for (i = 0; i < MV_PORTS; i++) |
||||
w16(pdev, MV_PORTREG(CONTROL, i), 0x00); |
||||
|
||||
msleep(2); /* wait for the status change to settle in */ |
||||
|
||||
/* put the ATU in reset */ |
||||
w16(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET); |
||||
|
||||
i = mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET, 0); |
||||
if (i < 0) { |
||||
printk("%s: Timeout waiting for the switch to reset.\n", dev->name); |
||||
return i; |
||||
} |
||||
|
||||
/* set the ATU flags */ |
||||
w16(pdev, MV_SWITCHREG(ATU_CTRL), |
||||
MV_ATUCTL_NO_LEARN | |
||||
MV_ATUCTL_ATU_1K | |
||||
MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */ |
||||
); |
||||
|
||||
/* initialize the cpu port */ |
||||
w16(pdev, MV_PORTREG(CONTROL, MV_CPUPORT), |
||||
#ifdef HEADER_MODE |
||||
MV_PORTCTRL_HEADER | |
||||
#else |
||||
MV_PORTCTRL_RXTR | |
||||
MV_PORTCTRL_TXTR | |
||||
#endif |
||||
MV_PORTCTRL_ENABLED |
||||
); |
||||
/* wait for the phy change to settle in */ |
||||
msleep(2); |
||||
for (i = 0; i < MV_PORTS; i++) { |
||||
u8 pvid = 0; |
||||
int j; |
||||
|
||||
vlmap = 0; |
||||
|
||||
/* look for the matching vlan */ |
||||
for (j = 0; j < ARRAY_SIZE(priv->vlans); j++) { |
||||
if (priv->vlans[j] & (1 << i)) { |
||||
vlmap = priv->vlans[j]; |
||||
pvid = j; |
||||
} |
||||
} |
||||
/* leave port unconfigured if it's not part of a vlan */ |
||||
if (!vlmap) |
||||
continue; |
||||
|
||||
/* add the cpu port to the allowed destinations list */ |
||||
vlmap |= (1 << MV_CPUPORT); |
||||
|
||||
/* take port out of its own vlan destination map */ |
||||
vlmap &= ~(1 << i); |
||||
|
||||
/* apply vlan settings */ |
||||
w16(pdev, MV_PORTREG(VLANMAP, i), |
||||
MV_PORTVLAN_PORTS(vlmap) | |
||||
MV_PORTVLAN_ID(i) |
||||
); |
||||
|
||||
/* re-enable port */ |
||||
w16(pdev, MV_PORTREG(CONTROL, i), |
||||
MV_PORTCTRL_ENABLED |
||||
); |
||||
} |
||||
|
||||
w16(pdev, MV_PORTREG(VLANMAP, MV_CPUPORT), |
||||
MV_PORTVLAN_ID(MV_CPUPORT) |
||||
); |
||||
|
||||
/* set the port association vector */ |
||||
for (i = 0; i <= MV_PORTS; i++) { |
||||
w16(pdev, MV_PORTREG(ASSOC, i), |
||||
MV_PORTASSOC_PORTS(1 << i) |
||||
); |
||||
} |
||||
|
||||
/* init switch control */ |
||||
w16(pdev, MV_SWITCHREG(CTRL), |
||||
MV_SWITCHCTL_MSIZE | |
||||
MV_SWITCHCTL_DROP |
||||
); |
||||
|
||||
/* hook into the tx function */ |
||||
priv->ndo_old = dev->netdev_ops; |
||||
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops)); |
||||
priv->ndo.ndo_start_xmit = mvswitch_mangle_tx; |
||||
priv->ndo.ndo_vlan_rx_register = mvswitch_vlan_rx_register; |
||||
dev->netdev_ops = &priv->ndo; |
||||
|
||||
pdev->pkt_align = 2; |
||||
pdev->netif_receive_skb = mvswitch_netif_receive_skb; |
||||
pdev->netif_rx = mvswitch_netif_rx; |
||||
#ifdef HEADER_MODE |
||||
dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX; |
||||
#else |
||||
dev->features |= NETIF_F_HW_VLAN_RX; |
||||
#endif |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_read_status(struct phy_device *pdev) |
||||
{ |
||||
pdev->speed = SPEED_100; |
||||
pdev->duplex = DUPLEX_FULL; |
||||
pdev->state = PHY_UP; |
||||
|
||||
/* XXX ugly workaround: we can't force the switch
|
||||
* to gracefully handle hosts moving from one port to another, |
||||
* so we have to regularly clear the ATU database */ |
||||
|
||||
/* wait for the ATU to become available */ |
||||
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0); |
||||
|
||||
/* flush the ATU */ |
||||
w16(pdev, MV_SWITCHREG(ATU_OP), |
||||
MV_ATUOP_INPROGRESS | |
||||
MV_ATUOP_FLUSH_ALL |
||||
); |
||||
|
||||
/* wait for operation to complete */ |
||||
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_config_aneg(struct phy_device *phydev) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
mvswitch_remove(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv = to_mvsw(pdev); |
||||
struct net_device *dev = pdev->attached_dev; |
||||
|
||||
/* restore old netdev ops */ |
||||
if (priv->ndo_old && dev) |
||||
dev->netdev_ops = priv->ndo_old; |
||||
dev->vlan_rx_register = NULL; |
||||
dev->vlan_rx_kill_vid = NULL; |
||||
dev->phy_ptr = NULL; |
||||
dev->features &= ~NETIF_F_HW_VLAN_RX; |
||||
kfree(priv); |
||||
} |
||||
|
||||
static int |
||||
mvswitch_probe(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
|
||||
priv = kzalloc(sizeof(struct mvswitch_priv), GFP_KERNEL); |
||||
if (priv == NULL) |
||||
return -ENOMEM; |
||||
|
||||
pdev->priv = priv; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_fixup(struct phy_device *dev) |
||||
{ |
||||
u16 reg; |
||||
|
||||
if (dev->addr != 0x10) |
||||
return 0; |
||||
|
||||
reg = dev->bus->read(dev->bus, MV_PORTREG(IDENT, 0)) & MV_IDENT_MASK; |
||||
if (reg != MV_IDENT_VALUE) |
||||
return 0; |
||||
|
||||
dev->phy_id = MVSWITCH_MAGIC; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static struct phy_driver mvswitch_driver = { |
||||
.name = "Marvell 88E6060", |
||||
.phy_id = MVSWITCH_MAGIC, |
||||
.phy_id_mask = 0xffffffff, |
||||
.features = PHY_BASIC_FEATURES, |
||||
.probe = &mvswitch_probe, |
||||
.remove = &mvswitch_remove, |
||||
.config_init = &mvswitch_config_init, |
||||
.config_aneg = &mvswitch_config_aneg, |
||||
.read_status = &mvswitch_read_status, |
||||
.driver = { .owner = THIS_MODULE,}, |
||||
}; |
||||
|
||||
static int __init |
||||
mvswitch_init(void) |
||||
{ |
||||
phy_register_fixup_for_id(PHY_ANY_ID, mvswitch_fixup); |
||||
return phy_driver_register(&mvswitch_driver); |
||||
} |
||||
|
||||
static void __exit |
||||
mvswitch_exit(void) |
||||
{ |
||||
phy_driver_unregister(&mvswitch_driver); |
||||
} |
||||
|
||||
module_init(mvswitch_init); |
||||
module_exit(mvswitch_exit); |
@ -1,651 +0,0 @@ |
||||
/*
|
||||
* ar8216.c: AR8216 switch driver |
||||
* |
||||
* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License |
||||
* as published by the Free Software Foundation; either version 2 |
||||
* of the License, or (at your option) any later version. |
||||
* |
||||
* 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 <linux/bitops.h> |
||||
#include <net/genetlink.h> |
||||
#include <linux/switch.h> |
||||
#include <linux/delay.h> |
||||
#include <linux/phy.h> |
||||
#include <linux/netdevice.h> |
||||
#include <linux/etherdevice.h> |
||||
#include "ar8216.h" |
||||
|
||||
|
||||
struct ar8216_priv { |
||||
struct switch_dev dev; |
||||
struct phy_device *phy; |
||||
u32 (*read)(struct ar8216_priv *priv, int reg); |
||||
void (*write)(struct ar8216_priv *priv, int reg, u32 val); |
||||
const struct net_device_ops *ndo_old; |
||||
struct net_device_ops ndo; |
||||
|
||||
/* all fields below are cleared on reset */ |
||||
bool vlan; |
||||
u8 vlan_id[AR8216_NUM_VLANS]; |
||||
u8 vlan_table[AR8216_NUM_VLANS]; |
||||
u8 vlan_tagged; |
||||
u16 pvid[AR8216_NUM_PORTS]; |
||||
}; |
||||
static struct switch_dev athdev; |
||||
|
||||
#define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev) |
||||
|
||||
static inline void |
||||
split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page) |
||||
{ |
||||
regaddr >>= 1; |
||||
*r1 = regaddr & 0x1e; |
||||
|
||||
regaddr >>= 5; |
||||
*r2 = regaddr & 0x7; |
||||
|
||||
regaddr >>= 3; |
||||
*page = regaddr & 0x1ff; |
||||
} |
||||
|
||||
static u32 |
||||
ar8216_mii_read(struct ar8216_priv *priv, int reg) |
||||
{ |
||||
struct phy_device *phy = priv->phy; |
||||
u16 r1, r2, page; |
||||
u16 lo, hi; |
||||
|
||||
split_addr((u32) reg, &r1, &r2, &page); |
||||
phy->bus->write(phy->bus, 0x18, 0, page); |
||||
msleep(1); /* wait for the page switch to propagate */ |
||||
lo = phy->bus->read(phy->bus, 0x10 | r2, r1); |
||||
hi = phy->bus->read(phy->bus, 0x10 | r2, r1 + 1); |
||||
|
||||
return (hi << 16) | lo; |
||||
} |
||||
|
||||
static void |
||||
ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val) |
||||
{ |
||||
struct phy_device *phy = priv->phy; |
||||
u16 r1, r2, r3; |
||||
u16 lo, hi; |
||||
|
||||
split_addr((u32) reg, &r1, &r2, &r3); |
||||
phy->bus->write(phy->bus, 0x18, 0, r3); |
||||
msleep(1); /* wait for the page switch to propagate */ |
||||
|
||||
lo = val & 0xffff; |
||||
hi = (u16) (val >> 16); |
||||
phy->bus->write(phy->bus, 0x10 | r2, r1 + 1, hi); |
||||
phy->bus->write(phy->bus, 0x10 | r2, r1, lo); |
||||
} |
||||
|
||||
static u32 |
||||
ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val) |
||||
{ |
||||
u32 v; |
||||
|
||||
v = priv->read(priv, reg); |
||||
v &= ~mask; |
||||
v |= val; |
||||
priv->write(priv, reg, v); |
||||
|
||||
return v; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->vlan = !!val->value.i; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
val->value.i = priv->vlan; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
ar8216_set_pvid(struct switch_dev *dev, int port, int vlan) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->pvid[port] = vlan; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_pvid(struct switch_dev *dev, int port, int *vlan) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
*vlan = priv->pvid[port]; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_vid(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
priv->vlan_id[val->port_vlan] = val->value.i; |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_get_vid(struct switch_dev *dev, const struct switch_attr *attr, |
||||
struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
val->value.i = priv->vlan_id[val->port_vlan]; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
ar8216_mangle_tx(struct sk_buff *skb, struct net_device *dev) |
||||
{ |
||||
struct ar8216_priv *priv = dev->phy_ptr; |
||||
unsigned char *buf; |
||||
|
||||
if (unlikely(!priv)) |
||||
goto error; |
||||
|
||||
if (!priv->vlan) |
||||
goto send; |
||||
|
||||
if (unlikely(skb_headroom(skb) < 2)) { |
||||
if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0) |
||||
goto error; |
||||
} |
||||
|
||||
buf = skb_push(skb, 2); |
||||
buf[0] = 0x10; |
||||
buf[1] = 0x80; |
||||
|
||||
send: |
||||
return priv->ndo_old->ndo_start_xmit(skb, dev); |
||||
|
||||
error: |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_mangle_rx(struct sk_buff *skb, int napi) |
||||
{ |
||||
struct ar8216_priv *priv; |
||||
struct net_device *dev; |
||||
unsigned char *buf; |
||||
int port, vlan; |
||||
|
||||
dev = skb->dev; |
||||
if (!dev) |
||||
goto error; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (!priv) |
||||
goto error; |
||||
|
||||
/* don't strip the header if vlan mode is disabled */ |
||||
if (!priv->vlan) |
||||
goto recv; |
||||
|
||||
/* strip header, get vlan id */ |
||||
buf = skb->data; |
||||
skb_pull(skb, 2); |
||||
|
||||
/* check for vlan header presence */ |
||||
if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00)) |
||||
goto recv; |
||||
|
||||
port = buf[0] & 0xf; |
||||
|
||||
/* no need to fix up packets coming from a tagged source */ |
||||
if (priv->vlan_tagged & (1 << port)) |
||||
goto recv; |
||||
|
||||
/* lookup port vid from local table, the switch passes an invalid vlan id */ |
||||
vlan = priv->pvid[port]; |
||||
|
||||
buf[14 + 2] &= 0xf0; |
||||
buf[14 + 2] |= vlan >> 8; |
||||
buf[15 + 2] = vlan & 0xff; |
||||
|
||||
recv: |
||||
skb->protocol = eth_type_trans(skb, skb->dev); |
||||
|
||||
if (napi) |
||||
return netif_receive_skb(skb); |
||||
else |
||||
return netif_rx(skb); |
||||
|
||||
error: |
||||
/* no vlan? eat the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_netif_rx(struct sk_buff *skb) |
||||
{ |
||||
return ar8216_mangle_rx(skb, 0); |
||||
} |
||||
|
||||
static int |
||||
ar8216_netif_receive_skb(struct sk_buff *skb) |
||||
{ |
||||
return ar8216_mangle_rx(skb, 1); |
||||
} |
||||
|
||||
|
||||
static struct switch_attr ar8216_globals[] = { |
||||
{ |
||||
.type = SWITCH_TYPE_INT, |
||||
.name = "enable_vlan", |
||||
.description = "Enable VLAN mode", |
||||
.set = ar8216_set_vlan, |
||||
.get = ar8216_get_vlan, |
||||
.max = 1 |
||||
}, |
||||
}; |
||||
|
||||
static struct switch_attr ar8216_port[] = { |
||||
}; |
||||
|
||||
static struct switch_attr ar8216_vlan[] = { |
||||
{ |
||||
.type = SWITCH_TYPE_INT, |
||||
.name = "pvid", |
||||
.description = "VLAN ID", |
||||
.set = ar8216_set_vid, |
||||
.get = ar8216_get_vid, |
||||
.max = 4095, |
||||
}, |
||||
}; |
||||
|
||||
|
||||
static int |
||||
ar8216_get_ports(struct switch_dev *dev, struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 ports = priv->vlan_table[val->port_vlan]; |
||||
int i; |
||||
|
||||
val->len = 0; |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
struct switch_port *p; |
||||
|
||||
if (!(ports & (1 << i))) |
||||
continue; |
||||
|
||||
p = &val->value.ports[val->len++]; |
||||
p->id = i; |
||||
if (priv->vlan_tagged & (1 << i)) |
||||
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED); |
||||
else |
||||
p->flags = 0; |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_set_ports(struct switch_dev *dev, struct switch_val *val) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 *vt = &priv->vlan_table[val->port_vlan]; |
||||
int i, j; |
||||
|
||||
*vt = 0; |
||||
for (i = 0; i < val->len; i++) { |
||||
struct switch_port *p = &val->value.ports[i]; |
||||
|
||||
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) |
||||
priv->vlan_tagged |= (1 << p->id); |
||||
else { |
||||
priv->vlan_tagged &= ~(1 << p->id); |
||||
priv->pvid[p->id] = val->port_vlan; |
||||
|
||||
/* make sure that an untagged port does not
|
||||
* appear in other vlans */ |
||||
for (j = 0; j < AR8216_NUM_VLANS; j++) { |
||||
if (j == val->port_vlan) |
||||
continue; |
||||
priv->vlan_table[j] &= ~(1 << p->id); |
||||
} |
||||
} |
||||
|
||||
*vt |= 1 << p->id; |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val) |
||||
{ |
||||
int timeout = 20; |
||||
|
||||
while ((priv->read(priv, reg) & mask) != val) { |
||||
if (timeout-- <= 0) { |
||||
printk(KERN_ERR "ar8216: timeout waiting for operation to complete\n"); |
||||
return 1; |
||||
} |
||||
} |
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val) |
||||
{ |
||||
if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0)) |
||||
return; |
||||
if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) { |
||||
val &= AR8216_VTUDATA_MEMBER; |
||||
val |= AR8216_VTUDATA_VALID; |
||||
priv->write(priv, AR8216_REG_VTU_DATA, val); |
||||
} |
||||
op |= AR8216_VTU_ACTIVE; |
||||
priv->write(priv, AR8216_REG_VTU, op); |
||||
} |
||||
|
||||
static int |
||||
ar8216_hw_apply(struct switch_dev *dev) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
u8 portmask[AR8216_NUM_PORTS]; |
||||
int i, j; |
||||
|
||||
/* flush all vlan translation unit entries */ |
||||
ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0); |
||||
|
||||
memset(portmask, 0, sizeof(portmask)); |
||||
if (priv->vlan) { |
||||
/* calculate the port destination masks and load vlans
|
||||
* into the vlan translation unit */ |
||||
for (j = 0; j < AR8216_NUM_VLANS; j++) { |
||||
u8 vp = priv->vlan_table[j]; |
||||
|
||||
if (!vp) |
||||
continue; |
||||
|
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
u8 mask = (1 << i); |
||||
if (vp & mask) |
||||
portmask[i] |= vp & ~mask; |
||||
} |
||||
|
||||
if (!priv->vlan_table[j]) |
||||
continue; |
||||
|
||||
ar8216_vtu_op(priv, |
||||
AR8216_VTU_OP_LOAD | |
||||
(priv->vlan_id[j] << AR8216_VTU_VID_S), |
||||
priv->vlan_table[j]); |
||||
} |
||||
} else { |
||||
/* vlan disabled:
|
||||
* isolate all ports, but connect them to the cpu port */ |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
if (i == AR8216_PORT_CPU) |
||||
continue; |
||||
|
||||
portmask[i] = 1 << AR8216_PORT_CPU; |
||||
portmask[AR8216_PORT_CPU] |= (1 << i); |
||||
} |
||||
} |
||||
|
||||
/* update the port destination mask registers and tag settings */ |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
int egress, ingress; |
||||
int pvid; |
||||
|
||||
if (priv->vlan) { |
||||
pvid = priv->vlan_id[priv->pvid[i]]; |
||||
} else { |
||||
pvid = i; |
||||
} |
||||
|
||||
if (priv->vlan && (priv->vlan_tagged & (1 << i))) { |
||||
egress = AR8216_OUT_ADD_VLAN; |
||||
} else { |
||||
egress = AR8216_OUT_STRIP_VLAN; |
||||
} |
||||
ingress = AR8216_IN_SECURE; |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_PORT_CTRL(i), |
||||
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE | |
||||
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE | |
||||
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK, |
||||
AR8216_PORT_CTRL_LEARN | |
||||
(priv->vlan && i == AR8216_PORT_CPU ? |
||||
AR8216_PORT_CTRL_HEADER : 0) | |
||||
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) | |
||||
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S)); |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_PORT_VLAN(i), |
||||
AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE | |
||||
AR8216_PORT_VLAN_DEFAULT_ID, |
||||
(portmask[i] << AR8216_PORT_VLAN_DEST_PORTS_S) | |
||||
(ingress << AR8216_PORT_VLAN_MODE_S) | |
||||
(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S)); |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_reset_switch(struct switch_dev *dev) |
||||
{ |
||||
struct ar8216_priv *priv = to_ar8216(dev); |
||||
int i; |
||||
|
||||
memset(&priv->vlan, 0, sizeof(struct ar8216_priv) - |
||||
offsetof(struct ar8216_priv, vlan)); |
||||
for (i = 0; i < AR8216_NUM_VLANS; i++) { |
||||
priv->vlan_id[i] = i; |
||||
} |
||||
for (i = 0; i < AR8216_NUM_PORTS; i++) { |
||||
/* Enable port learning and tx */ |
||||
priv->write(priv, AR8216_REG_PORT_CTRL(i), |
||||
AR8216_PORT_CTRL_LEARN | |
||||
(4 << AR8216_PORT_CTRL_STATE_S)); |
||||
|
||||
priv->write(priv, AR8216_REG_PORT_VLAN(i), 0); |
||||
|
||||
/* Configure all PHYs */ |
||||
if (i == AR8216_PORT_CPU) { |
||||
priv->write(priv, AR8216_REG_PORT_STATUS(i), |
||||
AR8216_PORT_STATUS_LINK_UP | |
||||
AR8216_PORT_STATUS_SPEED | |
||||
AR8216_PORT_STATUS_TXMAC | |
||||
AR8216_PORT_STATUS_RXMAC | |
||||
AR8216_PORT_STATUS_DUPLEX); |
||||
} else { |
||||
priv->write(priv, AR8216_REG_PORT_STATUS(i), |
||||
AR8216_PORT_STATUS_LINK_AUTO); |
||||
} |
||||
} |
||||
/* XXX: undocumented magic from atheros, required! */ |
||||
priv->write(priv, 0x38, 0xc000050e); |
||||
|
||||
ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL, |
||||
AR8216_GCTRL_MTU, 1518 + 8 + 2); |
||||
|
||||
return ar8216_hw_apply(dev); |
||||
} |
||||
|
||||
static int |
||||
ar8216_config_init(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv *priv; |
||||
struct net_device *dev = pdev->attached_dev; |
||||
int ret; |
||||
|
||||
printk("%s: AR8216 PHY driver attached.\n", pdev->attached_dev->name); |
||||
pdev->supported = ADVERTISED_100baseT_Full; |
||||
pdev->advertising = ADVERTISED_100baseT_Full; |
||||
|
||||
priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL); |
||||
if (priv == NULL) |
||||
return -ENOMEM; |
||||
|
||||
priv->phy = pdev; |
||||
priv->read = ar8216_mii_read; |
||||
priv->write = ar8216_mii_write; |
||||
memcpy(&priv->dev, &athdev, sizeof(struct switch_dev)); |
||||
pdev->priv = priv; |
||||
if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) { |
||||
kfree(priv); |
||||
goto done; |
||||
} |
||||
|
||||
ret = ar8216_reset_switch(&priv->dev); |
||||
if (ret) |
||||
goto done; |
||||
|
||||
dev->phy_ptr = priv; |
||||
pdev->pkt_align = 2; |
||||
pdev->netif_receive_skb = ar8216_netif_receive_skb; |
||||
pdev->netif_rx = ar8216_netif_rx; |
||||
|
||||
priv->ndo_old = dev->netdev_ops; |
||||
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops)); |
||||
priv->ndo.ndo_start_xmit = ar8216_mangle_tx; |
||||
dev->netdev_ops = &priv->ndo; |
||||
|
||||
done: |
||||
return ret; |
||||
} |
||||
|
||||
static int |
||||
ar8216_read_status(struct phy_device *phydev) |
||||
{ |
||||
struct ar8216_priv *priv = phydev->priv; |
||||
|
||||
phydev->speed = SPEED_100; |
||||
phydev->duplex = DUPLEX_FULL; |
||||
phydev->state = PHY_UP; |
||||
|
||||
/* flush the address translation unit */ |
||||
if (ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0)) |
||||
return -ETIMEDOUT; |
||||
|
||||
priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_config_aneg(struct phy_device *phydev) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
ar8216_probe(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv priv; |
||||
|
||||
u8 id, rev; |
||||
u32 val; |
||||
|
||||
priv.phy = pdev; |
||||
val = ar8216_mii_read(&priv, AR8216_REG_CTRL); |
||||
rev = val & 0xff; |
||||
id = (val >> 8) & 0xff; |
||||
if ((id != 1) || (rev != 1)) |
||||
return -ENODEV; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
ar8216_remove(struct phy_device *pdev) |
||||
{ |
||||
struct ar8216_priv *priv = pdev->priv; |
||||
struct net_device *dev = pdev->attached_dev; |
||||
|
||||
if (!priv) |
||||
return; |
||||
|
||||
if (priv->ndo_old && dev) |
||||
dev->netdev_ops = priv->ndo_old; |
||||
unregister_switch(&priv->dev); |
||||
kfree(priv); |
||||
} |
||||
|
||||
/* template */ |
||||
static struct switch_dev athdev = { |
||||
.name = "Atheros AR8216", |
||||
.cpu_port = AR8216_PORT_CPU, |
||||
.ports = AR8216_NUM_PORTS, |
||||
.vlans = AR8216_NUM_VLANS, |
||||
.attr_global = { |
||||
.attr = ar8216_globals, |
||||
.n_attr = ARRAY_SIZE(ar8216_globals), |
||||
}, |
||||
.attr_port = { |
||||
.attr = ar8216_port, |
||||
.n_attr = ARRAY_SIZE(ar8216_port), |
||||
}, |
||||
.attr_vlan = { |
||||
.attr = ar8216_vlan, |
||||
.n_attr = ARRAY_SIZE(ar8216_vlan), |
||||
}, |
||||
.get_port_pvid = ar8216_get_pvid, |
||||
.set_port_pvid = ar8216_set_pvid, |
||||
.get_vlan_ports = ar8216_get_ports, |
||||
.set_vlan_ports = ar8216_set_ports, |
||||
.apply_config = ar8216_hw_apply, |
||||
.reset_switch = ar8216_reset_switch, |
||||
}; |
||||
|
||||
static struct phy_driver ar8216_driver = { |
||||
.name = "Atheros AR8216", |
||||
.features = PHY_BASIC_FEATURES, |
||||
.probe = ar8216_probe, |
||||
.remove = ar8216_remove, |
||||
.config_init = &ar8216_config_init, |
||||
.config_aneg = &ar8216_config_aneg, |
||||
.read_status = &ar8216_read_status, |
||||
.driver = { .owner = THIS_MODULE }, |
||||
}; |
||||
|
||||
int __init |
||||
ar8216_init(void) |
||||
{ |
||||
return phy_driver_register(&ar8216_driver); |
||||
} |
||||
|
||||
void __exit |
||||
ar8216_exit(void) |
||||
{ |
||||
phy_driver_unregister(&ar8216_driver); |
||||
} |
||||
|
||||
module_init(ar8216_init); |
||||
module_exit(ar8216_exit); |
||||
MODULE_LICENSE("GPL"); |
||||
|
@ -1,467 +0,0 @@ |
||||
/*
|
||||
* Marvell 88E6060 switch driver |
||||
* Copyright (c) 2008 Felix Fietkau <nbd@openwrt.org> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify it |
||||
* under the terms of the GNU General Public License v2 as published by the |
||||
* Free Software Foundation |
||||
*/ |
||||
#include <linux/kernel.h> |
||||
#include <linux/string.h> |
||||
#include <linux/errno.h> |
||||
#include <linux/unistd.h> |
||||
#include <linux/slab.h> |
||||
#include <linux/interrupt.h> |
||||
#include <linux/init.h> |
||||
#include <linux/delay.h> |
||||
#include <linux/netdevice.h> |
||||
#include <linux/etherdevice.h> |
||||
#include <linux/skbuff.h> |
||||
#include <linux/spinlock.h> |
||||
#include <linux/mm.h> |
||||
#include <linux/module.h> |
||||
#include <linux/mii.h> |
||||
#include <linux/ethtool.h> |
||||
#include <linux/phy.h> |
||||
#include <linux/if_vlan.h> |
||||
|
||||
#include <asm/io.h> |
||||
#include <asm/irq.h> |
||||
#include <asm/uaccess.h> |
||||
#include "mvswitch.h" |
||||
|
||||
/* Undefine this to use trailer mode instead.
|
||||
* I don't know if header mode works with all chips */ |
||||
#define HEADER_MODE 1 |
||||
|
||||
MODULE_DESCRIPTION("Marvell 88E6060 Switch driver"); |
||||
MODULE_AUTHOR("Felix Fietkau"); |
||||
MODULE_LICENSE("GPL"); |
||||
|
||||
#define MVSWITCH_MAGIC 0x88E6060 |
||||
|
||||
struct mvswitch_priv { |
||||
const struct net_device_ops *ndo_old; |
||||
struct net_device_ops ndo; |
||||
struct vlan_group *grp; |
||||
u8 vlans[16]; |
||||
}; |
||||
|
||||
#define to_mvsw(_phy) ((struct mvswitch_priv *) (_phy)->priv) |
||||
|
||||
static inline u16 |
||||
r16(struct phy_device *phydev, int addr, int reg) |
||||
{ |
||||
return phydev->bus->read(phydev->bus, addr, reg); |
||||
} |
||||
|
||||
static inline void |
||||
w16(struct phy_device *phydev, int addr, int reg, u16 val) |
||||
{ |
||||
phydev->bus->write(phydev->bus, addr, reg, val); |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_mangle_tx(struct sk_buff *skb, struct net_device *dev) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
char *buf = NULL; |
||||
u16 vid; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (unlikely(!priv)) |
||||
goto error; |
||||
|
||||
if (unlikely(skb->len < 16)) |
||||
goto error; |
||||
|
||||
#ifdef HEADER_MODE |
||||
if (__vlan_hwaccel_get_tag(skb, &vid)) |
||||
goto error; |
||||
|
||||
if (skb_cloned(skb) || (skb->len <= 62) || (skb_headroom(skb) < MV_HEADER_SIZE)) { |
||||
if (pskb_expand_head(skb, MV_HEADER_SIZE, (skb->len < 62 ? 62 - skb->len : 0), GFP_ATOMIC)) |
||||
goto error_expand; |
||||
if (skb->len < 62) |
||||
skb->len = 62; |
||||
} |
||||
buf = skb_push(skb, MV_HEADER_SIZE); |
||||
#else |
||||
if (__vlan_get_tag(skb, &vid)) |
||||
goto error; |
||||
|
||||
if (unlikely((vid > 15 || !priv->vlans[vid]))) |
||||
goto error; |
||||
|
||||
if (skb->len <= 64) { |
||||
if (pskb_expand_head(skb, 0, 64 + MV_TRAILER_SIZE - skb->len, GFP_ATOMIC)) |
||||
goto error_expand; |
||||
|
||||
buf = skb->data + 64; |
||||
skb->len = 64 + MV_TRAILER_SIZE; |
||||
} else { |
||||
if (skb_cloned(skb) || unlikely(skb_tailroom(skb) < 4)) { |
||||
if (pskb_expand_head(skb, 0, 4, GFP_ATOMIC)) |
||||
goto error_expand; |
||||
} |
||||
buf = skb_put(skb, 4); |
||||
} |
||||
|
||||
/* move the ethernet header 4 bytes forward, overwriting the vlan tag */ |
||||
memmove(skb->data + 4, skb->data, 12); |
||||
skb->data += 4; |
||||
skb->len -= 4; |
||||
skb->mac_header += 4; |
||||
#endif |
||||
|
||||
if (!buf) |
||||
goto error; |
||||
|
||||
|
||||
#ifdef HEADER_MODE |
||||
/* prepend the tag */ |
||||
*((__be16 *) buf) = cpu_to_be16( |
||||
((vid << MV_HEADER_VLAN_S) & MV_HEADER_VLAN_M) | |
||||
((priv->vlans[vid] << MV_HEADER_PORTS_S) & MV_HEADER_PORTS_M) |
||||
); |
||||
#else |
||||
/* append the tag */ |
||||
*((__be32 *) buf) = cpu_to_be32(( |
||||
(MV_TRAILER_OVERRIDE << MV_TRAILER_FLAGS_S) | |
||||
((priv->vlans[vid] & MV_TRAILER_PORTS_M) << MV_TRAILER_PORTS_S) |
||||
)); |
||||
#endif |
||||
|
||||
return priv->ndo_old->ndo_start_xmit(skb, dev); |
||||
|
||||
error_expand: |
||||
if (net_ratelimit()) |
||||
printk("%s: failed to expand/update skb for the switch\n", dev->name); |
||||
|
||||
error: |
||||
/* any errors? drop the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_mangle_rx(struct sk_buff *skb, int napi) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
struct net_device *dev; |
||||
int vlan = -1; |
||||
unsigned char *buf; |
||||
int i; |
||||
|
||||
dev = skb->dev; |
||||
if (!dev) |
||||
goto error; |
||||
|
||||
priv = dev->phy_ptr; |
||||
if (!priv) |
||||
goto error; |
||||
|
||||
if (!priv->grp) |
||||
goto error; |
||||
|
||||
#ifdef HEADER_MODE |
||||
buf = skb->data; |
||||
skb_pull(skb, MV_HEADER_SIZE); |
||||
#else |
||||
buf = skb->data + skb->len - MV_TRAILER_SIZE; |
||||
if (buf[0] != 0x80) |
||||
goto error; |
||||
#endif |
||||
|
||||
/* look for the vlan matching the incoming port */ |
||||
for (i = 0; i < ARRAY_SIZE(priv->vlans); i++) { |
||||
if ((1 << buf[1]) & priv->vlans[i]) |
||||
vlan = i; |
||||
} |
||||
|
||||
if (vlan == -1) |
||||
goto error; |
||||
|
||||
skb->protocol = eth_type_trans(skb, skb->dev); |
||||
|
||||
if (napi) |
||||
return vlan_hwaccel_receive_skb(skb, priv->grp, vlan); |
||||
else |
||||
return vlan_hwaccel_rx(skb, priv->grp, vlan); |
||||
|
||||
error: |
||||
/* no vlan? eat the packet! */ |
||||
dev_kfree_skb_any(skb); |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_netif_rx(struct sk_buff *skb) |
||||
{ |
||||
return mvswitch_mangle_rx(skb, 0); |
||||
} |
||||
|
||||
static int |
||||
mvswitch_netif_receive_skb(struct sk_buff *skb) |
||||
{ |
||||
return mvswitch_mangle_rx(skb, 1); |
||||
} |
||||
|
||||
|
||||
static void |
||||
mvswitch_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
||||
{ |
||||
struct mvswitch_priv *priv = dev->phy_ptr; |
||||
priv->grp = grp; |
||||
} |
||||
|
||||
|
||||
static int |
||||
mvswitch_wait_mask(struct phy_device *pdev, int addr, int reg, u16 mask, u16 val) |
||||
{ |
||||
int i = 100; |
||||
u16 r; |
||||
|
||||
do { |
||||
r = r16(pdev, addr, reg) & mask; |
||||
if (r == val) |
||||
return 0; |
||||
} while(--i > 0); |
||||
return -ETIMEDOUT; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_config_init(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv = to_mvsw(pdev); |
||||
struct net_device *dev = pdev->attached_dev; |
||||
u8 vlmap = 0; |
||||
int i; |
||||
|
||||
if (!dev) |
||||
return -EINVAL; |
||||
|
||||
printk("%s: Marvell 88E6060 PHY driver attached.\n", dev->name); |
||||
pdev->supported = ADVERTISED_100baseT_Full; |
||||
pdev->advertising = ADVERTISED_100baseT_Full; |
||||
dev->phy_ptr = priv; |
||||
dev->irq = PHY_POLL; |
||||
|
||||
/* initialize default vlans */ |
||||
for (i = 0; i < MV_PORTS; i++) |
||||
priv->vlans[(i == MV_WANPORT ? 2 : 1)] |= (1 << i); |
||||
|
||||
/* before entering reset, disable all ports */ |
||||
for (i = 0; i < MV_PORTS; i++) |
||||
w16(pdev, MV_PORTREG(CONTROL, i), 0x00); |
||||
|
||||
msleep(2); /* wait for the status change to settle in */ |
||||
|
||||
/* put the ATU in reset */ |
||||
w16(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET); |
||||
|
||||
i = mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET, 0); |
||||
if (i < 0) { |
||||
printk("%s: Timeout waiting for the switch to reset.\n", dev->name); |
||||
return i; |
||||
} |
||||
|
||||
/* set the ATU flags */ |
||||
w16(pdev, MV_SWITCHREG(ATU_CTRL), |
||||
MV_ATUCTL_NO_LEARN | |
||||
MV_ATUCTL_ATU_1K | |
||||
MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */ |
||||
); |
||||
|
||||
/* initialize the cpu port */ |
||||
w16(pdev, MV_PORTREG(CONTROL, MV_CPUPORT), |
||||
#ifdef HEADER_MODE |
||||
MV_PORTCTRL_HEADER | |
||||
#else |
||||
MV_PORTCTRL_RXTR | |
||||
MV_PORTCTRL_TXTR | |
||||
#endif |
||||
MV_PORTCTRL_ENABLED |
||||
); |
||||
/* wait for the phy change to settle in */ |
||||
msleep(2); |
||||
for (i = 0; i < MV_PORTS; i++) { |
||||
u8 pvid = 0; |
||||
int j; |
||||
|
||||
vlmap = 0; |
||||
|
||||
/* look for the matching vlan */ |
||||
for (j = 0; j < ARRAY_SIZE(priv->vlans); j++) { |
||||
if (priv->vlans[j] & (1 << i)) { |
||||
vlmap = priv->vlans[j]; |
||||
pvid = j; |
||||
} |
||||
} |
||||
/* leave port unconfigured if it's not part of a vlan */ |
||||
if (!vlmap) |
||||
continue; |
||||
|
||||
/* add the cpu port to the allowed destinations list */ |
||||
vlmap |= (1 << MV_CPUPORT); |
||||
|
||||
/* take port out of its own vlan destination map */ |
||||
vlmap &= ~(1 << i); |
||||
|
||||
/* apply vlan settings */ |
||||
w16(pdev, MV_PORTREG(VLANMAP, i), |
||||
MV_PORTVLAN_PORTS(vlmap) | |
||||
MV_PORTVLAN_ID(i) |
||||
); |
||||
|
||||
/* re-enable port */ |
||||
w16(pdev, MV_PORTREG(CONTROL, i), |
||||
MV_PORTCTRL_ENABLED |
||||
); |
||||
} |
||||
|
||||
w16(pdev, MV_PORTREG(VLANMAP, MV_CPUPORT), |
||||
MV_PORTVLAN_ID(MV_CPUPORT) |
||||
); |
||||
|
||||
/* set the port association vector */ |
||||
for (i = 0; i <= MV_PORTS; i++) { |
||||
w16(pdev, MV_PORTREG(ASSOC, i), |
||||
MV_PORTASSOC_PORTS(1 << i) |
||||
); |
||||
} |
||||
|
||||
/* init switch control */ |
||||
w16(pdev, MV_SWITCHREG(CTRL), |
||||
MV_SWITCHCTL_MSIZE | |
||||
MV_SWITCHCTL_DROP |
||||
); |
||||
|
||||
/* hook into the tx function */ |
||||
priv->ndo_old = dev->netdev_ops; |
||||
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops)); |
||||
priv->ndo.ndo_start_xmit = mvswitch_mangle_tx; |
||||
priv->ndo.ndo_vlan_rx_register = mvswitch_vlan_rx_register; |
||||
dev->netdev_ops = &priv->ndo; |
||||
|
||||
pdev->pkt_align = 2; |
||||
pdev->netif_receive_skb = mvswitch_netif_receive_skb; |
||||
pdev->netif_rx = mvswitch_netif_rx; |
||||
#ifdef HEADER_MODE |
||||
dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX; |
||||
#else |
||||
dev->features |= NETIF_F_HW_VLAN_RX; |
||||
#endif |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_read_status(struct phy_device *pdev) |
||||
{ |
||||
pdev->speed = SPEED_100; |
||||
pdev->duplex = DUPLEX_FULL; |
||||
pdev->state = PHY_UP; |
||||
|
||||
/* XXX ugly workaround: we can't force the switch
|
||||
* to gracefully handle hosts moving from one port to another, |
||||
* so we have to regularly clear the ATU database */ |
||||
|
||||
/* wait for the ATU to become available */ |
||||
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0); |
||||
|
||||
/* flush the ATU */ |
||||
w16(pdev, MV_SWITCHREG(ATU_OP), |
||||
MV_ATUOP_INPROGRESS | |
||||
MV_ATUOP_FLUSH_ALL |
||||
); |
||||
|
||||
/* wait for operation to complete */ |
||||
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_config_aneg(struct phy_device *phydev) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
static void |
||||
mvswitch_remove(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv = to_mvsw(pdev); |
||||
struct net_device *dev = pdev->attached_dev; |
||||
|
||||
/* restore old netdev ops */ |
||||
if (priv->ndo_old && dev) |
||||
dev->netdev_ops = priv->ndo_old; |
||||
dev->vlan_rx_register = NULL; |
||||
dev->vlan_rx_kill_vid = NULL; |
||||
dev->phy_ptr = NULL; |
||||
dev->features &= ~NETIF_F_HW_VLAN_RX; |
||||
kfree(priv); |
||||
} |
||||
|
||||
static int |
||||
mvswitch_probe(struct phy_device *pdev) |
||||
{ |
||||
struct mvswitch_priv *priv; |
||||
|
||||
priv = kzalloc(sizeof(struct mvswitch_priv), GFP_KERNEL); |
||||
if (priv == NULL) |
||||
return -ENOMEM; |
||||
|
||||
pdev->priv = priv; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int |
||||
mvswitch_fixup(struct phy_device *dev) |
||||
{ |
||||
u16 reg; |
||||
|
||||
if (dev->addr != 0x10) |
||||
return 0; |
||||
|
||||
reg = dev->bus->read(dev->bus, MV_PORTREG(IDENT, 0)) & MV_IDENT_MASK; |
||||
if (reg != MV_IDENT_VALUE) |
||||
return 0; |
||||
|
||||
dev->phy_id = MVSWITCH_MAGIC; |
||||
return 0; |
||||
} |
||||
|
||||
|
||||
static struct phy_driver mvswitch_driver = { |
||||
.name = "Marvell 88E6060", |
||||
.phy_id = MVSWITCH_MAGIC, |
||||
.phy_id_mask = 0xffffffff, |
||||
.features = PHY_BASIC_FEATURES, |
||||
.probe = &mvswitch_probe, |
||||
.remove = &mvswitch_remove, |
||||
.config_init = &mvswitch_config_init, |
||||
.config_aneg = &mvswitch_config_aneg, |
||||
.read_status = &mvswitch_read_status, |
||||
.driver = { .owner = THIS_MODULE,}, |
||||
}; |
||||
|
||||
static int __init |
||||
mvswitch_init(void) |
||||
{ |
||||
phy_register_fixup_for_id(PHY_ANY_ID, mvswitch_fixup); |
||||
return phy_driver_register(&mvswitch_driver); |
||||
} |
||||
|
||||
static void __exit |
||||
mvswitch_exit(void) |
||||
{ |
||||
phy_driver_unregister(&mvswitch_driver); |
||||
} |
||||
|
||||
module_init(mvswitch_init); |
||||
module_exit(mvswitch_exit); |
@ -1,22 +0,0 @@ |
||||
--- a/drivers/net/phy/Kconfig
|
||||
+++ b/drivers/net/phy/Kconfig
|
||||
@@ -77,6 +77,9 @@ config ADM6996_PHY
|
||||
---help---
|
||||
Currently supports the ADM6996F switch
|
||||
|
||||
+config MVSWITCH_PHY
|
||||
+ tristate "Driver for Marvell 88E6060 switches"
|
||||
+
|
||||
config FIXED_PHY
|
||||
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
|
||||
depends on PHYLIB=y
|
||||
--- a/drivers/net/phy/Makefile
|
||||
+++ b/drivers/net/phy/Makefile
|
||||
@@ -14,6 +14,7 @@ obj-$(CONFIG_VITESSE_PHY) += vitesse.o
|
||||
obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
|
||||
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
|
||||
obj-$(CONFIG_ADM6996_PHY) += adm6996.o
|
||||
+obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
|
||||
obj-$(CONFIG_REALTEK_PHY) += realtek.o
|
||||
obj-$(CONFIG_FIXED_PHY) += fixed.o
|
||||
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
|
@ -1,23 +0,0 @@ |
||||
--- a/drivers/net/phy/Kconfig
|
||||
+++ b/drivers/net/phy/Kconfig
|
||||
@@ -84,6 +84,10 @@ config IP175C_PHY
|
||||
tristate "Driver for IC+ IP175C/IP178C switches"
|
||||
select SWCONFIG
|
||||
|
||||
+config AR8216_PHY
|
||||
+ tristate "Driver for Atheros AR8216 switches"
|
||||
+ select SWCONFIG
|
||||
+
|
||||
config FIXED_PHY
|
||||
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
|
||||
depends on PHYLIB=y
|
||||
--- a/drivers/net/phy/Makefile
|
||||
+++ b/drivers/net/phy/Makefile
|
||||
@@ -16,6 +16,7 @@ obj-$(CONFIG_ICPLUS_PHY) += icplus.o
|
||||
obj-$(CONFIG_ADM6996_PHY) += adm6996.o
|
||||
obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
|
||||
obj-$(CONFIG_IP175C_PHY) += ip175c.o
|
||||
+obj-$(CONFIG_AR8216_PHY) += ar8216.o
|
||||
obj-$(CONFIG_REALTEK_PHY) += realtek.o
|
||||
obj-$(CONFIG_FIXED_PHY) += fixed.o
|
||||
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
|
Loading…
Reference in new issue