mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-11 10:14:38 +02:00
84e11fcd5a
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19458 3c298f89-4303-0410-b956-a3cf2f4a3e73
900 lines
24 KiB
C
900 lines
24 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
//-----------------------------------------------------------------------
|
|
/*
|
|
* Description:
|
|
* Driver for Infineon Amazon 3 port switch
|
|
*/
|
|
//-----------------------------------------------------------------------
|
|
/* Author: Wu Qi Ming[Qi-Ming.Wu@infineon.com]
|
|
* Created: 7-April-2004
|
|
*/
|
|
//-----------------------------------------------------------------------
|
|
/* History
|
|
* Changed on: Jun 28, 2004
|
|
* Changed by: peng.liu@infineon.com
|
|
* Reason: add hardware flow control (HFC) (CONFIG_NET_HW_FLOWCONTROL)
|
|
*
|
|
* Changed on: Apr 6, 2005
|
|
* Changed by: mars.lin@infineon.com
|
|
* Reason : supoort port identification
|
|
*/
|
|
|
|
|
|
// copyright 2004-2005 infineon.com
|
|
|
|
// copyright 2007 john crispin <blogic@openwrt.org>
|
|
// copyright 2007 felix fietkau <nbd@openwrt.org>
|
|
// copyright 2009 hauke mehrtens <hauke@hauke-m.de>
|
|
|
|
|
|
// TODO
|
|
// port vlan code from bcrm target... the tawainese code was scrapped due to crappyness
|
|
// check all the mmi reg settings and possibly document them better
|
|
// verify the ethtool code
|
|
// remove the while(1) stuff
|
|
// further clean up and rework ... but it works for now
|
|
// check the mode[]=bridge stuff
|
|
// verify that the ethaddr can be set from u-boot
|
|
|
|
|
|
#ifndef __KERNEL__
|
|
#define __KERNEL__
|
|
#endif
|
|
|
|
|
|
#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
|
|
#define MODVERSIONS
|
|
#endif
|
|
|
|
#if defined(MODVERSIONS) && !defined(__GENKSYMS__)
|
|
#include <linux/modversions.h>
|
|
#endif
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/string.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/mii.h>
|
|
#include <asm/uaccess.h>
|
|
#include <linux/in.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/ip.h>
|
|
#include <linux/tcp.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/in6.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/ethtool.h>
|
|
#include <asm/checksum.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <asm/amazon/amazon.h>
|
|
#include <asm/amazon/amazon_dma.h>
|
|
#include <asm/amazon/amazon_sw.h>
|
|
|
|
// how many mii ports are there ?
|
|
#define AMAZON_SW_INT_NO 2
|
|
|
|
#define ETHERNET_PACKET_DMA_BUFFER_SIZE 1536
|
|
|
|
/***************************************** Module Parameters *************************************/
|
|
char mode[] = "bridge";
|
|
module_param_array(mode, charp, NULL, 0);
|
|
|
|
static int timeout = 1 * HZ;
|
|
module_param(timeout, int, 0);
|
|
|
|
int switch_init(struct net_device *dev);
|
|
void switch_tx_timeout(struct net_device *dev);
|
|
|
|
static struct net_device *switch_devs[2];
|
|
|
|
int add_mac_table_entry(u64 entry_value)
|
|
{
|
|
int i;
|
|
u32 data1, data2;
|
|
|
|
AMAZON_SW_REG32(AMAZON_SW_ARL_CTL) = ~7;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) = 0x80000000 | 0x20 | i;
|
|
while (AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) & (0x80000000)) {};
|
|
data1 = AMAZON_SW_REG32(AMAZON_SW_DATA1);
|
|
data2 = AMAZON_SW_REG32(AMAZON_SW_DATA2);
|
|
if ((data1 & (0x00700000)) != 0x00700000)
|
|
continue;
|
|
AMAZON_SW_REG32(AMAZON_SW_DATA1) = (u32) (entry_value >> 32);
|
|
AMAZON_SW_REG32(AMAZON_SW_DATA2) = (u32) entry_value & 0xffffffff;
|
|
AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) = 0xc0000020 | i;
|
|
while (AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) & (0x80000000)) {};
|
|
break;
|
|
}
|
|
AMAZON_SW_REG32(AMAZON_SW_ARL_CTL) |= 7;
|
|
if (i >= 32)
|
|
return -1;
|
|
return OK;
|
|
}
|
|
|
|
u64 read_mac_table_entry(int index)
|
|
{
|
|
u32 data1, data2;
|
|
u64 value;
|
|
AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) = 0x80000000 | 0x20 | index;
|
|
while (AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) & (0x80000000)) {};
|
|
data1 = AMAZON_SW_REG32(AMAZON_SW_DATA1) & 0xffffff;
|
|
data2 = AMAZON_SW_REG32(AMAZON_SW_DATA2);
|
|
value = (u64) data1 << 32 | (u64) data2;
|
|
return value;
|
|
}
|
|
|
|
int write_mac_table_entry(int index, u64 value)
|
|
{
|
|
u32 data1, data2;
|
|
data1 = (u32) (value >> 32);
|
|
data2 = (u32) value & 0xffffffff;
|
|
AMAZON_SW_REG32(AMAZON_SW_DATA1) = data1;
|
|
AMAZON_SW_REG32(AMAZON_SW_DATA2) = data2;
|
|
AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) = 0xc0000020 | index;
|
|
while (AMAZON_SW_REG32(AMAZON_SW_CPU_ACTL) & (0x80000000)) {};
|
|
return OK;
|
|
}
|
|
|
|
u32 get_mdio_reg(int phy_addr, int reg_num)
|
|
{
|
|
u32 value;
|
|
AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) = (3 << 30) | ((phy_addr & 0x1f) << 21) | ((reg_num & 0x1f) << 16);
|
|
while (AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) & (1 << 31)) {};
|
|
value = AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) & 0xffff;
|
|
return value;
|
|
}
|
|
|
|
int set_mdio_reg(int phy_addr, int reg_num, u32 value)
|
|
{
|
|
AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) = (2 << 30) | ((phy_addr & 0x1f) << 21) | ((reg_num & 0x1f) << 16) | (value & 0xffff);
|
|
while (AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) & (1 << 31)) {};
|
|
return OK;
|
|
}
|
|
|
|
int auto_negotiate(int phy_addr)
|
|
{
|
|
u32 value = 0;
|
|
value = get_mdio_reg(phy_addr, MDIO_BASE_CONTROL_REG);
|
|
set_mdio_reg(phy_addr, MDIO_BASE_CONTROL_REG, (value | RESTART_AUTO_NEGOTIATION | AUTO_NEGOTIATION_ENABLE | PHY_RESET));
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
In this version of switch driver, we split the dma channels for the switch.
|
|
2 for port0 and 2 for port1. So that we can do internal bridging if necessary.
|
|
In switch mode, packets coming in from port0 or port1 is able to do Destination
|
|
address lookup. Packets coming from port0 with destination address of port1 should
|
|
not go to pmac again. The switch hardware should be able to do the switch in the hard
|
|
ware level. Packets coming from the pmac should not do the DA look up in that the
|
|
desination is already known for the kernel. It only needs to go to the correct NIC to
|
|
find its way out.
|
|
*/
|
|
int amazon_sw_chip_init(void)
|
|
{
|
|
u32 tmp1;
|
|
int i = 0;
|
|
|
|
/* Aging tick select: 5mins */
|
|
tmp1 = 0xa0;
|
|
if (strcmp(mode, "bridge") == 0) {
|
|
// bridge mode, set militarised mode to 1, no learning!
|
|
tmp1 |= 0xC00;
|
|
} else {
|
|
// enable learning for P0 and P1,
|
|
tmp1 |= 3;
|
|
}
|
|
|
|
/* unknown broadcast/multicast/unicast to all ports */
|
|
AMAZON_SW_REG32(AMAZON_SW_UN_DEST) = 0x1ff;
|
|
|
|
AMAZON_SW_REG32(AMAZON_SW_ARL_CTL) = tmp1;
|
|
|
|
/* OCS:1 set OCS bit, split the two NIC in rx direction EDL:1 (enable DA lookup) */
|
|
#if defined(CONFIG_IFX_NFEXT_AMAZON_SWITCH_PHYPORT) || defined(CONFIG_IFX_NFEXT_AMAZON_SWITCH_PHYPORT_MODULE)
|
|
AMAZON_SW_REG32(AMAZON_SW_P2_PCTL) = 0x700;
|
|
#else
|
|
AMAZON_SW_REG32(AMAZON_SW_P2_PCTL) = 0x401;
|
|
#endif
|
|
|
|
/* EPC: 1 split the two NIC in tx direction CRC is generated */
|
|
AMAZON_SW_REG32(AMAZON_SW_P2_CTL) = 0x6;
|
|
|
|
// for bi-directional
|
|
AMAZON_SW_REG32(AMAZON_SW_P0_WM) = 0x14141412;
|
|
AMAZON_SW_REG32(AMAZON_SW_P1_WM) = 0x14141412;
|
|
AMAZON_SW_REG32(AMAZON_SW_P2_WM) = 0x28282826;
|
|
AMAZON_SW_REG32(AMAZON_SW_GBL_WM) = 0x0;
|
|
|
|
AMAZON_SW_REG32(AMAZON_CGU_PLL0SR) = (AMAZON_SW_REG32(AMAZON_CGU_PLL0SR)) | 0x58000000;
|
|
// clock for PHY
|
|
AMAZON_SW_REG32(AMAZON_CGU_IFCCR) = (AMAZON_SW_REG32(AMAZON_CGU_IFCCR)) | 0x80000004;
|
|
// enable power for PHY
|
|
AMAZON_SW_REG32(AMAZON_PMU_PWDCR) = (AMAZON_SW_REG32(AMAZON_PMU_PWDCR)) | AMAZON_PMU_PWDCR_EPHY;
|
|
// set reverse MII, enable MDIO statemachine
|
|
AMAZON_SW_REG32(AMAZON_SW_MDIO_CFG) = 0x800027bf;
|
|
while (1)
|
|
if (((AMAZON_SW_REG32(AMAZON_SW_MDIO_CFG)) & 0x80000000) == 0)
|
|
break;
|
|
AMAZON_SW_REG32(AMAZON_SW_EPHY) = 0xff;
|
|
|
|
// auto negotiation
|
|
AMAZON_SW_REG32(AMAZON_SW_MDIO_ACC) = 0x83e08000;
|
|
auto_negotiate(0x1f);
|
|
|
|
/* enable all ports */
|
|
AMAZON_SW_REG32(AMAZON_SW_PS_CTL) = 0x7;
|
|
for (i = 0; i < 32; i++)
|
|
write_mac_table_entry(i, 1 << 50);
|
|
return 0;
|
|
}
|
|
|
|
static unsigned char my_ethaddr[MAX_ADDR_LEN];
|
|
/* need to get the ether addr from u-boot */
|
|
static int __init ethaddr_setup(char *line)
|
|
{
|
|
char *ep;
|
|
int i;
|
|
|
|
memset(my_ethaddr, 0, MAX_ADDR_LEN);
|
|
for (i = 0; i < 6; i++) {
|
|
my_ethaddr[i] = line ? simple_strtoul(line, &ep, 16) : 0;
|
|
if (line)
|
|
line = (*ep) ? ep + 1 : ep;
|
|
}
|
|
printk(KERN_INFO "amazon_mii0: mac address %2x-%2x-%2x-%2x-%2x-%2x \n", my_ethaddr[0], my_ethaddr[1], my_ethaddr[2], my_ethaddr[3], my_ethaddr[4], my_ethaddr[5]);
|
|
return 0;
|
|
}
|
|
|
|
__setup("ethaddr=", ethaddr_setup);
|
|
|
|
static void open_rx_dma(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
struct dma_device_info *dma_dev = priv->dma_device;
|
|
int i;
|
|
|
|
for (i = 0; i < dma_dev->num_rx_chan; i++)
|
|
dma_dev->rx_chan[i].control = 1;
|
|
dma_device_update_rx(dma_dev);
|
|
}
|
|
|
|
#ifdef CONFIG_NET_HW_FLOWCONTROL
|
|
static void close_rx_dma(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
struct dma_device_info *dma_dev = priv->dma_device;
|
|
int i;
|
|
|
|
for (i = 0; i < dma_dev->num_rx_chan; i++)
|
|
dma_dev->rx_chan[i].control = 0;
|
|
dma_device_update_rx(dma_dev);
|
|
}
|
|
|
|
void amazon_xon(struct net_device *dev)
|
|
{
|
|
unsigned long flag;
|
|
local_irq_save(flag);
|
|
open_rx_dma(dev);
|
|
local_irq_restore(flag);
|
|
}
|
|
#endif
|
|
|
|
int switch_open(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
if (!strcmp(dev->name, "eth1")) {
|
|
priv->mdio_phy_addr = PHY0_ADDR;
|
|
}
|
|
open_rx_dma(dev);
|
|
|
|
#ifdef CONFIG_NET_HW_FLOWCONTROL
|
|
if ((priv->fc_bit = netdev_register_fc(dev, amazon_xon)) == 0) {
|
|
printk(KERN_WARNING "amazon_mii0: Hardware Flow Control register fails\n");
|
|
}
|
|
#endif
|
|
|
|
netif_start_queue(dev);
|
|
return OK;
|
|
}
|
|
|
|
int switch_release(struct net_device *dev)
|
|
{
|
|
int i;
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
struct dma_device_info *dma_dev = priv->dma_device;
|
|
|
|
for (i = 0; i < dma_dev->num_tx_chan; i++)
|
|
dma_dev->tx_chan[i].control = 0;
|
|
for (i = 0; i < dma_dev->num_rx_chan; i++)
|
|
dma_dev->rx_chan[i].control = 0;
|
|
|
|
dma_device_update(dma_dev);
|
|
|
|
#ifdef CONFIG_NET_HW_FLOWCONTROL
|
|
if (priv->fc_bit) {
|
|
netdev_unregister_fc(priv->fc_bit);
|
|
}
|
|
#endif
|
|
netif_stop_queue(dev);
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
void switch_rx(struct net_device *dev, int len, struct sk_buff *skb)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
#ifdef CONFIG_NET_HW_FLOWCONTROL
|
|
int mit_sel = 0;
|
|
#endif
|
|
skb->dev = dev;
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
|
|
#ifdef CONFIG_NET_HW_FLOWCONTROL
|
|
mit_sel = netif_rx(skb);
|
|
switch (mit_sel) {
|
|
case NET_RX_SUCCESS:
|
|
case NET_RX_CN_LOW:
|
|
case NET_RX_CN_MOD:
|
|
break;
|
|
case NET_RX_CN_HIGH:
|
|
break;
|
|
case NET_RX_DROP:
|
|
if ((priv->fc_bit)
|
|
&& (!test_and_set_bit(priv->fc_bit, &netdev_fc_xoff))) {
|
|
close_rx_dma(dev);
|
|
}
|
|
break;
|
|
}
|
|
#else
|
|
netif_rx(skb);
|
|
#endif
|
|
priv->stats.rx_packets++;
|
|
priv->stats.rx_bytes += len;
|
|
return;
|
|
}
|
|
|
|
int asmlinkage switch_hw_tx(char *buf, int len, struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = netdev_priv(dev);
|
|
struct dma_device_info *dma_dev = priv->dma_device;
|
|
|
|
dma_dev->current_tx_chan = 0;
|
|
return dma_device_write(dma_dev, buf, len, priv->skb);
|
|
}
|
|
|
|
int asmlinkage switch_tx(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
int len;
|
|
char *data;
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
|
|
len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
|
|
data = skb->data;
|
|
priv->skb = skb;
|
|
dev->trans_start = jiffies;
|
|
|
|
if (switch_hw_tx(data, len, dev) != len) {
|
|
dev_kfree_skb_any(skb);
|
|
return OK;
|
|
}
|
|
|
|
priv->stats.tx_packets++;
|
|
priv->stats.tx_bytes += len;
|
|
return OK;
|
|
}
|
|
|
|
void switch_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
priv->stats.tx_errors++;
|
|
netif_wake_queue(dev);
|
|
return;
|
|
}
|
|
|
|
void negotiate(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
unsigned short data = get_mdio_reg(priv->mdio_phy_addr, MDIO_ADVERTISMENT_REG);
|
|
|
|
data &= ~(MDIO_ADVERT_100_HD | MDIO_ADVERT_100_FD | MDIO_ADVERT_10_FD | MDIO_ADVERT_10_HD);
|
|
|
|
switch (priv->current_speed_selection) {
|
|
case 10:
|
|
if (priv->current_duplex == full)
|
|
data |= MDIO_ADVERT_10_FD;
|
|
else if (priv->current_duplex == half)
|
|
data |= MDIO_ADVERT_10_HD;
|
|
else
|
|
data |= MDIO_ADVERT_10_HD | MDIO_ADVERT_10_FD;
|
|
break;
|
|
|
|
case 100:
|
|
if (priv->current_duplex == full)
|
|
data |= MDIO_ADVERT_100_FD;
|
|
else if (priv->current_duplex == half)
|
|
data |= MDIO_ADVERT_100_HD;
|
|
else
|
|
data |= MDIO_ADVERT_100_HD | MDIO_ADVERT_100_FD;
|
|
break;
|
|
|
|
case 0: /* Auto */
|
|
if (priv->current_duplex == full)
|
|
data |= MDIO_ADVERT_100_FD | MDIO_ADVERT_10_FD;
|
|
else if (priv->current_duplex == half)
|
|
data |= MDIO_ADVERT_100_HD | MDIO_ADVERT_10_HD;
|
|
else
|
|
data |= MDIO_ADVERT_100_HD | MDIO_ADVERT_100_FD | MDIO_ADVERT_10_FD | MDIO_ADVERT_10_HD;
|
|
break;
|
|
|
|
default: /* assume autoneg speed and duplex */
|
|
data |= MDIO_ADVERT_100_HD | MDIO_ADVERT_100_FD | MDIO_ADVERT_10_FD | MDIO_ADVERT_10_HD;
|
|
}
|
|
|
|
set_mdio_reg(priv->mdio_phy_addr, MDIO_ADVERTISMENT_REG, data);
|
|
|
|
/* Renegotiate with link partner */
|
|
|
|
data = get_mdio_reg(priv->mdio_phy_addr, MDIO_BASE_CONTROL_REG);
|
|
data |= MDIO_BC_NEGOTIATE;
|
|
|
|
set_mdio_reg(priv->mdio_phy_addr, MDIO_BASE_CONTROL_REG, data);
|
|
|
|
}
|
|
|
|
|
|
void set_duplex(struct net_device *dev, enum duplex new_duplex)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
if (new_duplex != priv->current_duplex) {
|
|
priv->current_duplex = new_duplex;
|
|
negotiate(dev);
|
|
}
|
|
}
|
|
|
|
void set_speed(struct net_device *dev, unsigned long speed)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
priv->current_speed_selection = speed;
|
|
negotiate(dev);
|
|
}
|
|
|
|
static int switch_ethtool_ioctl(struct net_device *dev, struct ifreq *ifr)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
struct ethtool_cmd ecmd;
|
|
|
|
if (copy_from_user(&ecmd, ifr->ifr_data, sizeof(ecmd)))
|
|
return -EFAULT;
|
|
|
|
switch (ecmd.cmd) {
|
|
case ETHTOOL_GSET:
|
|
memset((void *) &ecmd, 0, sizeof(ecmd));
|
|
ecmd.supported = SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
|
|
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
|
|
ecmd.port = PORT_TP;
|
|
ecmd.transceiver = XCVR_EXTERNAL;
|
|
ecmd.phy_address = priv->mdio_phy_addr;
|
|
|
|
ecmd.speed = priv->current_speed;
|
|
|
|
ecmd.duplex = priv->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
|
|
|
|
ecmd.advertising = ADVERTISED_TP;
|
|
if (priv->current_duplex == autoneg && priv->current_speed_selection == 0)
|
|
ecmd.advertising |= ADVERTISED_Autoneg;
|
|
else {
|
|
ecmd.advertising |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
|
|
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
|
|
if (priv->current_speed_selection == 10)
|
|
ecmd.advertising &= ~(ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full);
|
|
else if (priv->current_speed_selection == 100)
|
|
ecmd.advertising &= ~(ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full);
|
|
if (priv->current_duplex == half)
|
|
ecmd.advertising &= ~(ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Full);
|
|
else if (priv->current_duplex == full)
|
|
ecmd.advertising &= ~(ADVERTISED_10baseT_Half | ADVERTISED_100baseT_Half);
|
|
}
|
|
ecmd.autoneg = AUTONEG_ENABLE;
|
|
if (copy_to_user(ifr->ifr_data, &ecmd, sizeof(ecmd)))
|
|
return -EFAULT;
|
|
break;
|
|
|
|
case ETHTOOL_SSET:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
return -EPERM;
|
|
}
|
|
if (ecmd.autoneg == AUTONEG_ENABLE) {
|
|
set_duplex(dev, autoneg);
|
|
set_speed(dev, 0);
|
|
} else {
|
|
set_duplex(dev, ecmd.duplex == DUPLEX_HALF ? half : full);
|
|
set_speed(dev, ecmd.speed == SPEED_10 ? 10 : 100);
|
|
}
|
|
break;
|
|
|
|
case ETHTOOL_GDRVINFO:
|
|
{
|
|
struct ethtool_drvinfo info;
|
|
memset((void *) &info, 0, sizeof(info));
|
|
strncpy(info.driver, "AMAZONE", sizeof(info.driver) - 1);
|
|
strncpy(info.fw_version, "N/A", sizeof(info.fw_version) - 1);
|
|
strncpy(info.bus_info, "N/A", sizeof(info.bus_info) - 1);
|
|
info.regdump_len = 0;
|
|
info.eedump_len = 0;
|
|
info.testinfo_len = 0;
|
|
if (copy_to_user(ifr->ifr_data, &info, sizeof(info)))
|
|
return -EFAULT;
|
|
}
|
|
break;
|
|
case ETHTOOL_NWAY_RST:
|
|
if (priv->current_duplex == autoneg && priv->current_speed_selection == 0)
|
|
negotiate(dev);
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
int mac_table_tools_ioctl(struct net_device *dev, struct mac_table_req *req)
|
|
{
|
|
int cmd;
|
|
int i;
|
|
cmd = req->cmd;
|
|
switch (cmd) {
|
|
case RESET_MAC_TABLE:
|
|
for (i = 0; i < 32; i++) {
|
|
write_mac_table_entry(i, 0);
|
|
}
|
|
break;
|
|
case READ_MAC_ENTRY:
|
|
req->entry_value = read_mac_table_entry(req->index);
|
|
break;
|
|
case WRITE_MAC_ENTRY:
|
|
write_mac_table_entry(req->index, req->entry_value);
|
|
break;
|
|
case ADD_MAC_ENTRY:
|
|
add_mac_table_entry(req->entry_value);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
the ioctl for the switch driver is developed in the conventional way
|
|
the control type falls into some basic categories, among them, the
|
|
SIOCETHTOOL is the traditional eth interface. VLAN_TOOLS and
|
|
MAC_TABLE_TOOLS are designed specifically for amazon chip. User
|
|
should be aware of the data structures used in these interfaces.
|
|
*/
|
|
int switch_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
struct data_req *switch_data_req = (struct data_req *) ifr->ifr_data;
|
|
struct mac_table_req *switch_mac_table_req;
|
|
switch (cmd) {
|
|
case SIOCETHTOOL:
|
|
switch_ethtool_ioctl(dev, ifr);
|
|
break;
|
|
case SIOCGMIIPHY: /* Get PHY address */
|
|
break;
|
|
case SIOCGMIIREG: /* Read MII register */
|
|
break;
|
|
case SIOCSMIIREG: /* Write MII register */
|
|
break;
|
|
case SET_ETH_SPEED_10: /* 10 Mbps */
|
|
break;
|
|
case SET_ETH_SPEED_100: /* 100 Mbps */
|
|
break;
|
|
case SET_ETH_SPEED_AUTO: /* Auto negotiate speed */
|
|
break;
|
|
case SET_ETH_DUPLEX_HALF: /* Half duplex. */
|
|
break;
|
|
case SET_ETH_DUPLEX_FULL: /* Full duplex. */
|
|
break;
|
|
case SET_ETH_DUPLEX_AUTO: /* Autonegotiate duplex */
|
|
break;
|
|
case SET_ETH_REG:
|
|
AMAZON_SW_REG32(switch_data_req->index) = switch_data_req->value;
|
|
break;
|
|
case MAC_TABLE_TOOLS:
|
|
switch_mac_table_req = (struct mac_table_req *) ifr->ifr_data;
|
|
mac_table_tools_ioctl(dev, switch_mac_table_req);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct net_device_stats *switch_stats(struct net_device *dev)
|
|
{
|
|
struct switch_priv *priv = (struct switch_priv *) netdev_priv(dev);
|
|
return &priv->stats;
|
|
}
|
|
|
|
int switch_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
if (new_mtu >= 1516)
|
|
new_mtu = 1516;
|
|
dev->mtu = new_mtu;
|
|
return 0;
|
|
}
|
|
|
|
int switch_hw_receive(struct net_device *dev, struct dma_device_info *dma_dev)
|
|
{
|
|
u8 *buf = NULL;
|
|
int len = 0;
|
|
struct sk_buff *skb = NULL;
|
|
|
|
len = dma_device_read(dma_dev, &buf, (void **) &skb);
|
|
|
|
if (len >= 0x600) {
|
|
printk(KERN_WARNING "amazon_mii0: packet too large %d\n", len);
|
|
goto switch_hw_receive_err_exit;
|
|
}
|
|
|
|
/* remove CRC */
|
|
len -= 4;
|
|
if (skb == NULL) {
|
|
printk(KERN_WARNING "amazon_mii0: cannot restore pointer\n");
|
|
goto switch_hw_receive_err_exit;
|
|
}
|
|
if (len > (skb->end - skb->tail)) {
|
|
printk(KERN_WARNING "amazon_mii0: BUG, len:%d end:%p tail:%p\n", (len + 4), skb->end, skb->tail);
|
|
goto switch_hw_receive_err_exit;
|
|
}
|
|
skb_put(skb, len);
|
|
skb->dev = dev;
|
|
switch_rx(dev, len, skb);
|
|
return OK;
|
|
|
|
switch_hw_receive_err_exit:
|
|
if (skb)
|
|
dev_kfree_skb_any(skb);
|
|
return -EIO;
|
|
}
|
|
|
|
int dma_intr_handler(struct dma_device_info *dma_dev, int status)
|
|
{
|
|
struct net_device *dev;
|
|
|
|
dev = dma_dev->priv;
|
|
switch (status) {
|
|
case RCV_INT:
|
|
switch_hw_receive(dev, dma_dev);
|
|
break;
|
|
case TX_BUF_FULL_INT:
|
|
netif_stop_queue(dev);
|
|
break;
|
|
case TRANSMIT_CPT_INT:
|
|
netif_wake_queue(dev);
|
|
break;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
/* reserve 2 bytes in front of data pointer*/
|
|
u8 *dma_buffer_alloc(int len, int *byte_offset, void **opt)
|
|
{
|
|
u8 *buffer = NULL;
|
|
struct sk_buff *skb = NULL;
|
|
skb = dev_alloc_skb(ETHERNET_PACKET_DMA_BUFFER_SIZE);
|
|
if (skb == NULL) {
|
|
return NULL;
|
|
}
|
|
buffer = (u8 *) (skb->data);
|
|
skb_reserve(skb, 2);
|
|
*(int *) opt = (int) skb;
|
|
*byte_offset = 2;
|
|
return buffer;
|
|
}
|
|
|
|
int dma_buffer_free(u8 * dataptr, void *opt)
|
|
{
|
|
struct sk_buff *skb = NULL;
|
|
if (opt == NULL) {
|
|
kfree(dataptr);
|
|
} else {
|
|
skb = (struct sk_buff *) opt;
|
|
dev_kfree_skb_any(skb);
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
int init_dma_device(_dma_device_info * dma_dev, struct net_device *dev)
|
|
{
|
|
int i;
|
|
int num_tx_chan, num_rx_chan;
|
|
if (strcmp(dma_dev->device_name, "switch1") == 0) {
|
|
num_tx_chan = 1;
|
|
num_rx_chan = 2;
|
|
} else {
|
|
num_tx_chan = 1;
|
|
num_rx_chan = 2;
|
|
}
|
|
dma_dev->priv = dev;
|
|
|
|
dma_dev->weight = 1;
|
|
dma_dev->num_tx_chan = num_tx_chan;
|
|
dma_dev->num_rx_chan = num_rx_chan;
|
|
dma_dev->ack = 1;
|
|
dma_dev->tx_burst_len = 4;
|
|
dma_dev->rx_burst_len = 4;
|
|
for (i = 0; i < dma_dev->num_tx_chan; i++) {
|
|
dma_dev->tx_chan[i].weight = QOS_DEFAULT_WGT;
|
|
dma_dev->tx_chan[i].desc_num = 10;
|
|
dma_dev->tx_chan[i].packet_size = 0;
|
|
dma_dev->tx_chan[i].control = 0;
|
|
}
|
|
for (i = 0; i < num_rx_chan; i++) {
|
|
dma_dev->rx_chan[i].weight = QOS_DEFAULT_WGT;
|
|
dma_dev->rx_chan[i].desc_num = 10;
|
|
dma_dev->rx_chan[i].packet_size = ETHERNET_PACKET_DMA_BUFFER_SIZE;
|
|
dma_dev->rx_chan[i].control = 0;
|
|
}
|
|
dma_dev->intr_handler = dma_intr_handler;
|
|
dma_dev->buffer_alloc = dma_buffer_alloc;
|
|
dma_dev->buffer_free = dma_buffer_free;
|
|
return 0;
|
|
}
|
|
|
|
int switch_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct sockaddr *addr = p;
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
return OK;
|
|
}
|
|
|
|
static const struct net_device_ops amazon_mii_ops = {
|
|
.ndo_init = switch_init,
|
|
.ndo_open = switch_open,
|
|
.ndo_stop = switch_release,
|
|
.ndo_start_xmit = switch_tx,
|
|
.ndo_do_ioctl = switch_ioctl,
|
|
.ndo_get_stats = switch_stats,
|
|
.ndo_change_mtu = switch_change_mtu,
|
|
.ndo_set_mac_address = switch_set_mac_address,
|
|
.ndo_tx_timeout = switch_tx_timeout,
|
|
};
|
|
|
|
int switch_init(struct net_device *dev)
|
|
{
|
|
u64 retval = 0;
|
|
int i;
|
|
int result;
|
|
struct switch_priv *priv;
|
|
ether_setup(dev); /* assign some of the fields */
|
|
printk(KERN_INFO "amazon_mii0: %s up using ", dev->name);
|
|
dev->watchdog_timeo = timeout;
|
|
|
|
priv = netdev_priv(dev);
|
|
priv->dma_device = (struct dma_device_info *) kmalloc(sizeof(struct dma_device_info), GFP_KERNEL);
|
|
if (priv->num == 0) {
|
|
sprintf(priv->dma_device->device_name, "switch1");
|
|
} else if (priv->num == 1) {
|
|
sprintf(priv->dma_device->device_name, "switch2");
|
|
}
|
|
printk("\"%s\"\n", priv->dma_device->device_name);
|
|
init_dma_device(priv->dma_device, dev);
|
|
result = dma_device_register(priv->dma_device);
|
|
|
|
/* read the mac address from the mac table and put them into the mac table. */
|
|
for (i = 0; i < 6; i++) {
|
|
retval += my_ethaddr[i];
|
|
}
|
|
/* ethaddr not set in u-boot ? */
|
|
if (retval == 0) {
|
|
dev->dev_addr[0] = 0x00;
|
|
dev->dev_addr[1] = 0x20;
|
|
dev->dev_addr[2] = 0xda;
|
|
dev->dev_addr[3] = 0x86;
|
|
dev->dev_addr[4] = 0x23;
|
|
dev->dev_addr[5] = 0x74 + (unsigned char) priv->num;
|
|
} else {
|
|
for (i = 0; i < 6; i++) {
|
|
dev->dev_addr[i] = my_ethaddr[i];
|
|
}
|
|
dev->dev_addr[5] += +(unsigned char) priv->num;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
static int amazon_mii_probe(struct platform_device *dev)
|
|
{
|
|
int i = 0, result, device_present = 0;
|
|
struct switch_priv *priv;
|
|
|
|
for (i = 0; i < AMAZON_SW_INT_NO; i++) {
|
|
switch_devs[i] = alloc_etherdev(sizeof(struct switch_priv));
|
|
switch_devs[i]->netdev_ops = &amazon_mii_ops;
|
|
strcpy(switch_devs[i]->name, "eth%d");
|
|
priv = (struct switch_priv *) netdev_priv(switch_devs[i]);
|
|
priv->num = i;
|
|
if ((result = register_netdev(switch_devs[i])))
|
|
printk(KERN_WARNING "amazon_mii0: error %i registering device \"%s\"\n", result, switch_devs[i]->name);
|
|
else
|
|
device_present++;
|
|
}
|
|
amazon_sw_chip_init();
|
|
return device_present ? 0 : -ENODEV;
|
|
}
|
|
|
|
static int amazon_mii_remove(struct platform_device *dev)
|
|
{
|
|
int i;
|
|
struct switch_priv *priv;
|
|
for (i = 0; i < AMAZON_SW_INT_NO; i++) {
|
|
priv = netdev_priv(switch_devs[i]);
|
|
if (priv->dma_device) {
|
|
dma_device_unregister(priv->dma_device);
|
|
kfree(priv->dma_device);
|
|
}
|
|
kfree(netdev_priv(switch_devs[i]));
|
|
unregister_netdev(switch_devs[i]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver amazon_mii_driver = {
|
|
.probe = amazon_mii_probe,
|
|
.remove = amazon_mii_remove,
|
|
.driver = {
|
|
.name = "amazon_mii0",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init amazon_mii_init(void)
|
|
{
|
|
int ret = platform_driver_register(&amazon_mii_driver);
|
|
if (ret)
|
|
printk(KERN_WARNING "amazon_mii0: Error registering platfom driver!\n");
|
|
return ret;
|
|
}
|
|
|
|
static void __exit amazon_mii_cleanup(void)
|
|
{
|
|
platform_driver_unregister(&amazon_mii_driver);
|
|
}
|
|
|
|
module_init(amazon_mii_init);
|
|
module_exit(amazon_mii_cleanup);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Wu Qi Ming");
|
|
MODULE_DESCRIPTION("ethernet driver for AMAZON boards");
|
|
|