mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-04-21 12:27:27 +03:00
strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
625
target/linux/adm5120/files/drivers/net/adm5120sw.c
Normal file
625
target/linux/adm5120/files/drivers/net/adm5120sw.c
Normal file
@@ -0,0 +1,625 @@
|
||||
/*
|
||||
* ADM5120 built in ethernet switch driver
|
||||
*
|
||||
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
|
||||
*
|
||||
* Inspiration for this driver came from the original ADMtek 2.4
|
||||
* driver, Copyright ADMtek Inc.
|
||||
*
|
||||
* NAPI extensions by Thomas Langer (Thomas.Langer@infineon.com)
|
||||
* and Friedrich Beckmann (Friedrich.Beckmann@infineon.com), 2007
|
||||
*
|
||||
* TODO: Add support of high prio queues (currently disabled)
|
||||
*
|
||||
*/
|
||||
#include <linux/autoconf.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/netdevice.h>
|
||||
#include <linux/etherdevice.h>
|
||||
#include <linux/skbuff.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <asm/mipsregs.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/io.h>
|
||||
#include "adm5120sw.h"
|
||||
|
||||
#include <asm/mach-adm5120/adm5120_info.h>
|
||||
#include <asm/mach-adm5120/adm5120_irq.h>
|
||||
|
||||
MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
|
||||
MODULE_DESCRIPTION("ADM5120 ethernet switch driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
/* default settings - unlimited TX and RX on all ports, default shaper mode */
|
||||
static unsigned char bw_matrix[SW_DEVS] = {
|
||||
0, 0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
static int adm5120_nrdevs;
|
||||
|
||||
static struct net_device *adm5120_devs[SW_DEVS];
|
||||
/* Lookup table port -> device */
|
||||
static struct net_device *adm5120_port[SW_DEVS];
|
||||
|
||||
static struct adm5120_dma
|
||||
adm5120_dma_txh_v[ADM5120_DMA_TXH] __attribute__((aligned(16))),
|
||||
adm5120_dma_txl_v[ADM5120_DMA_TXL] __attribute__((aligned(16))),
|
||||
adm5120_dma_rxh_v[ADM5120_DMA_RXH] __attribute__((aligned(16))),
|
||||
adm5120_dma_rxl_v[ADM5120_DMA_RXL] __attribute__((aligned(16))),
|
||||
*adm5120_dma_txh,
|
||||
*adm5120_dma_txl,
|
||||
*adm5120_dma_rxh,
|
||||
*adm5120_dma_rxl;
|
||||
static struct sk_buff
|
||||
*adm5120_skb_rxh[ADM5120_DMA_RXH],
|
||||
*adm5120_skb_rxl[ADM5120_DMA_RXL],
|
||||
*adm5120_skb_txh[ADM5120_DMA_TXH],
|
||||
*adm5120_skb_txl[ADM5120_DMA_TXL];
|
||||
static int adm5120_rxli = 0;
|
||||
static int adm5120_txli = 0;
|
||||
/*static int adm5120_txhi = 0;*/
|
||||
static int adm5120_if_open = 0;
|
||||
|
||||
static inline void adm5120_set_reg(unsigned int reg, unsigned long val)
|
||||
{
|
||||
*(volatile unsigned long*)(SW_BASE+reg) = val;
|
||||
}
|
||||
|
||||
static inline unsigned long adm5120_get_reg(unsigned int reg)
|
||||
{
|
||||
return *(volatile unsigned long*)(SW_BASE+reg);
|
||||
}
|
||||
|
||||
static inline void adm5120_rx_dma_update(struct adm5120_dma *dma,
|
||||
struct sk_buff *skb, int end)
|
||||
{
|
||||
dma->status = 0;
|
||||
dma->cntl = 0;
|
||||
dma->len = ADM5120_DMA_RXSIZE;
|
||||
dma->data = ADM5120_DMA_ADDR(skb->data) |
|
||||
ADM5120_DMA_OWN | (end ? ADM5120_DMA_RINGEND : 0);
|
||||
}
|
||||
|
||||
static int adm5120_rx(struct net_device *dev,int *budget)
|
||||
{
|
||||
struct sk_buff *skb, *skbn;
|
||||
struct adm5120_sw *priv;
|
||||
struct net_device *cdev;
|
||||
struct adm5120_dma *dma;
|
||||
int port, len, quota;
|
||||
|
||||
quota = min(dev->quota, *budget);
|
||||
dma = &adm5120_dma_rxl[adm5120_rxli];
|
||||
while (!(dma->data & ADM5120_DMA_OWN) && quota) {
|
||||
port = (dma->status & ADM5120_DMA_PORTID);
|
||||
port >>= ADM5120_DMA_PORTSHIFT;
|
||||
cdev = adm5120_port[port];
|
||||
if (cdev != dev) { /* The current packet belongs to a different device */
|
||||
if ((cdev==NULL) || !netif_running(cdev)) {
|
||||
/* discard (update with old skb) */
|
||||
skb = skbn = NULL;
|
||||
goto rx_skip;
|
||||
}
|
||||
else {
|
||||
netif_rx_schedule(cdev);/* Start polling next device */
|
||||
return 1; /* return 1 -> More packets to process */
|
||||
}
|
||||
|
||||
}
|
||||
skb = adm5120_skb_rxl[adm5120_rxli];
|
||||
len = (dma->status & ADM5120_DMA_LEN);
|
||||
len >>= ADM5120_DMA_LENSHIFT;
|
||||
len -= ETH_FCS;
|
||||
|
||||
priv = netdev_priv(dev);
|
||||
if (len <= 0 || len > ADM5120_DMA_RXSIZE ||
|
||||
dma->status & ADM5120_DMA_FCSERR) {
|
||||
priv->stats.rx_errors++;
|
||||
skbn = NULL;
|
||||
} else {
|
||||
skbn = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
|
||||
if (skbn) {
|
||||
skb_put(skb, len);
|
||||
skb->dev = dev;
|
||||
skb->protocol = eth_type_trans(skb, dev);
|
||||
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
||||
dev->last_rx = jiffies;
|
||||
priv->stats.rx_packets++;
|
||||
priv->stats.rx_bytes += len;
|
||||
skb_reserve(skbn, NET_IP_ALIGN);
|
||||
adm5120_skb_rxl[adm5120_rxli] = skbn;
|
||||
} else {
|
||||
printk(KERN_INFO "%s recycling!\n", dev->name);
|
||||
}
|
||||
}
|
||||
rx_skip:
|
||||
adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
|
||||
adm5120_skb_rxl[adm5120_rxli],
|
||||
(ADM5120_DMA_RXL-1==adm5120_rxli));
|
||||
if (ADM5120_DMA_RXL == ++adm5120_rxli)
|
||||
adm5120_rxli = 0;
|
||||
dma = &adm5120_dma_rxl[adm5120_rxli];
|
||||
if (skbn){
|
||||
netif_receive_skb(skb);
|
||||
dev->quota--;
|
||||
(*budget)--;
|
||||
quota--;
|
||||
}
|
||||
} /* while */
|
||||
/* If there are still packets to process, return 1 */
|
||||
if (quota){
|
||||
/* No more packets to process, so disable the polling and reenable the interrupts */
|
||||
netif_rx_complete(dev);
|
||||
adm5120_set_reg(ADM5120_INT_MASK,
|
||||
adm5120_get_reg(ADM5120_INT_MASK) &
|
||||
~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
|
||||
return 0;
|
||||
|
||||
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static irqreturn_t adm5120_sw_irq(int irq, void *dev_id)
|
||||
{
|
||||
unsigned long intreg, intmask;
|
||||
int port;
|
||||
struct net_device *dev;
|
||||
|
||||
intmask = adm5120_get_reg(ADM5120_INT_MASK); /* Remember interrupt mask */
|
||||
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL); /* Disable interrupts */
|
||||
|
||||
intreg = adm5120_get_reg(ADM5120_INT_ST); /* Read interrupt status */
|
||||
adm5120_set_reg(ADM5120_INT_ST, intreg); /* Clear interrupt status */
|
||||
|
||||
/* In NAPI operation the interrupts are disabled and the polling mechanism
|
||||
* is activated. The interrupts are finally enabled again in the polling routine.
|
||||
*/
|
||||
if (intreg & (ADM5120_INT_RXL|ADM5120_INT_LFULL)) {
|
||||
/* check rx buffer for port number */
|
||||
port = adm5120_dma_rxl[adm5120_rxli].status & ADM5120_DMA_PORTID;
|
||||
port >>= ADM5120_DMA_PORTSHIFT;
|
||||
dev = adm5120_port[port];
|
||||
if ((dev==NULL) || !netif_running(dev)) {
|
||||
/* discard (update with old skb) */
|
||||
adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
|
||||
adm5120_skb_rxl[adm5120_rxli],
|
||||
(ADM5120_DMA_RXL-1==adm5120_rxli));
|
||||
if (ADM5120_DMA_RXL == ++adm5120_rxli)
|
||||
adm5120_rxli = 0;
|
||||
}
|
||||
else {
|
||||
netif_rx_schedule(dev);
|
||||
intmask |= (ADM5120_INT_RXL|ADM5120_INT_LFULL); /* Disable RX interrupts */
|
||||
}
|
||||
}
|
||||
#ifdef CONFIG_DEBUG
|
||||
if (intreg & ~(intmask))
|
||||
printk(KERN_INFO "adm5120sw: IRQ 0x%08X unexpected!\n", (unsigned int)(intreg & ~(intmask)));
|
||||
#endif
|
||||
|
||||
adm5120_set_reg(ADM5120_INT_MASK, intmask);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static void adm5120_set_vlan(char *matrix)
|
||||
{
|
||||
unsigned long val;
|
||||
int vlan_port, port;
|
||||
|
||||
val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
|
||||
adm5120_set_reg(ADM5120_VLAN_GI, val);
|
||||
val = matrix[4] + (matrix[5]<<8);
|
||||
adm5120_set_reg(ADM5120_VLAN_GII, val);
|
||||
/* Now set/update the port vs. device lookup table */
|
||||
for (port=0; port<SW_DEVS; port++) {
|
||||
for (vlan_port=0; vlan_port<SW_DEVS && !(matrix[vlan_port] & (0x00000001 << port)); vlan_port++);
|
||||
if (vlan_port <SW_DEVS)
|
||||
adm5120_port[port] = adm5120_devs[vlan_port];
|
||||
else
|
||||
adm5120_port[port] = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static void adm5120_set_bw(char *matrix)
|
||||
{
|
||||
unsigned long val;
|
||||
|
||||
/* Port 0 to 3 are set using the bandwidth control 0 register */
|
||||
val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
|
||||
adm5120_set_reg(ADM5120_BW_CTL0, val);
|
||||
|
||||
/* Port 4 and 5 are set using the bandwidth control 1 register */
|
||||
val = matrix[4];
|
||||
if (matrix[5] == 1)
|
||||
adm5120_set_reg(ADM5120_BW_CTL1, val | 0x80000000);
|
||||
else
|
||||
adm5120_set_reg(ADM5120_BW_CTL1, val & ~0x8000000);
|
||||
|
||||
printk(KERN_DEBUG "D: ctl0 0x%lx, ctl1 0x%lx\n",
|
||||
adm5120_get_reg(ADM5120_BW_CTL0),
|
||||
adm5120_get_reg(ADM5120_BW_CTL1));
|
||||
}
|
||||
|
||||
static int adm5120_sw_open(struct net_device *dev)
|
||||
{
|
||||
unsigned long val;
|
||||
int i;
|
||||
|
||||
netif_start_queue(dev);
|
||||
if (!adm5120_if_open++) {
|
||||
/* enable interrupts on first open */
|
||||
adm5120_set_reg(ADM5120_INT_MASK,
|
||||
adm5120_get_reg(ADM5120_INT_MASK) &
|
||||
~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
|
||||
}
|
||||
/* enable (additional) port */
|
||||
val = adm5120_get_reg(ADM5120_PORT_CONF0);
|
||||
for (i=0; i<SW_DEVS; i++) {
|
||||
if (dev == adm5120_devs[i])
|
||||
val &= ~adm5120_eth_vlans[i];
|
||||
}
|
||||
adm5120_set_reg(ADM5120_PORT_CONF0, val);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adm5120_sw_stop(struct net_device *dev)
|
||||
{
|
||||
unsigned long val;
|
||||
int i;
|
||||
|
||||
if (!--adm5120_if_open) {
|
||||
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
|
||||
}
|
||||
/* disable port if not assigned to other devices */
|
||||
val = adm5120_get_reg(ADM5120_PORT_CONF0) | ADM5120_PORTDISALL;
|
||||
for (i=0; i<SW_DEVS; i++) {
|
||||
if ((dev != adm5120_devs[i]) && netif_running(adm5120_devs[i]))
|
||||
val &= ~adm5120_eth_vlans[i];
|
||||
}
|
||||
adm5120_set_reg(ADM5120_PORT_CONF0, val);
|
||||
netif_stop_queue(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adm5120_sw_tx(struct sk_buff *skb, struct net_device *dev)
|
||||
{
|
||||
struct adm5120_dma *dma;
|
||||
struct sk_buff **skbl = adm5120_skb_txl;
|
||||
struct adm5120_sw *priv = netdev_priv(dev);
|
||||
unsigned long data;
|
||||
|
||||
dev->trans_start = jiffies;
|
||||
dma = &adm5120_dma_txl[adm5120_txli];
|
||||
if (dma->data & ADM5120_DMA_OWN) {
|
||||
/* We want to write a packet but the TX queue is still
|
||||
* occupied by the DMA. We are faster than the DMA... */
|
||||
dev_kfree_skb(skb);
|
||||
priv->stats.tx_dropped++;
|
||||
return 0;
|
||||
}
|
||||
data = ADM5120_DMA_ADDR(skb->data) | ADM5120_DMA_OWN;
|
||||
if (adm5120_txli == ADM5120_DMA_TXL-1)
|
||||
data |= ADM5120_DMA_RINGEND;
|
||||
dma->status =
|
||||
((skb->len<ETH_ZLEN?ETH_ZLEN:skb->len) << ADM5120_DMA_LENSHIFT) |
|
||||
(0x1 << priv->port);
|
||||
|
||||
dma->len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
|
||||
priv->stats.tx_packets++;
|
||||
priv->stats.tx_bytes += skb->len;
|
||||
|
||||
/* free old skbs here instead of tx completion interrupt:
|
||||
* will hold some more memory allocated but reduces interrupts */
|
||||
if (skbl[adm5120_txli]){
|
||||
dev_kfree_skb(skbl[adm5120_txli]);
|
||||
}
|
||||
skbl[adm5120_txli] = skb;
|
||||
|
||||
dma->data = data; /* Here we enable the buffer for the TX DMA machine */
|
||||
adm5120_set_reg(ADM5120_SEND_TRIG, ADM5120_SEND_TRIG_L);
|
||||
if (++adm5120_txli == ADM5120_DMA_TXL)
|
||||
adm5120_txli = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void adm5120_tx_timeout(struct net_device *dev)
|
||||
{
|
||||
printk(KERN_INFO "%s: TX timeout\n",dev->name);
|
||||
}
|
||||
|
||||
static struct net_device_stats *adm5120_sw_stats(struct net_device *dev)
|
||||
{
|
||||
struct adm5120_sw *priv = netdev_priv(dev);
|
||||
int portmask;
|
||||
unsigned long adm5120_cpup_conf_reg;
|
||||
|
||||
portmask = adm5120_eth_vlans[priv->port] & 0x3f;
|
||||
|
||||
adm5120_cpup_conf_reg = adm5120_get_reg(ADM5120_CPUP_CONF);
|
||||
|
||||
if (dev->flags & IFF_PROMISC)
|
||||
adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL);
|
||||
else
|
||||
adm5120_cpup_conf_reg |= (portmask << ADM5120_DISUNSHIFT);
|
||||
|
||||
if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI || dev->mc_count)
|
||||
adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL);
|
||||
else
|
||||
adm5120_cpup_conf_reg |= (portmask << ADM5120_DISMCSHIFT);
|
||||
|
||||
/* If there is any port configured to be in promiscuous mode, then the */
|
||||
/* Bridge Test Mode has to be activated. This will result in */
|
||||
/* transporting also packets learned in another VLAN to be forwarded */
|
||||
/* to the CPU. */
|
||||
/* The difficult scenario is when we want to build a bridge on the CPU.*/
|
||||
/* Assume we have port0 and the CPU port in VLAN0 and port1 and the */
|
||||
/* CPU port in VLAN1. Now we build a bridge on the CPU between */
|
||||
/* VLAN0 and VLAN1. Both ports of the VLANs are set in promisc mode. */
|
||||
/* Now assume a packet with ethernet source address 99 enters port 0 */
|
||||
/* It will be forwarded to the CPU because it is unknown. Then the */
|
||||
/* bridge in the CPU will send it to VLAN1 and it goes out at port 1. */
|
||||
/* When now a packet with ethernet destination address 99 comes in at */
|
||||
/* port 1 in VLAN1, then the switch has learned that this address is */
|
||||
/* located at port 0 in VLAN0. Therefore the switch will drop */
|
||||
/* this packet. In order to avoid this and to send the packet still */
|
||||
/* to the CPU, the Bridge Test Mode has to be activated. */
|
||||
|
||||
/* Check if there is any vlan in promisc mode. */
|
||||
if (~adm5120_cpup_conf_reg & ADM5120_DISUNALL)
|
||||
adm5120_cpup_conf_reg |= ADM5120_BTM; /* Set the BTM */
|
||||
else
|
||||
adm5120_cpup_conf_reg &= ~ADM5120_BTM; /* Disable the BTM */
|
||||
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,adm5120_cpup_conf_reg);
|
||||
|
||||
return &((struct adm5120_sw *)netdev_priv(dev))->stats;
|
||||
}
|
||||
|
||||
static void adm5120_set_multicast_list(struct net_device *dev)
|
||||
{
|
||||
struct adm5120_sw *priv = netdev_priv(dev);
|
||||
int portmask;
|
||||
|
||||
portmask = adm5120_eth_vlans[priv->port] & 0x3f;
|
||||
|
||||
if (dev->flags & IFF_PROMISC)
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
adm5120_get_reg(ADM5120_CPUP_CONF) &
|
||||
~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL));
|
||||
else
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
adm5120_get_reg(ADM5120_CPUP_CONF) |
|
||||
(portmask << ADM5120_DISUNSHIFT));
|
||||
|
||||
if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI ||
|
||||
dev->mc_count)
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
adm5120_get_reg(ADM5120_CPUP_CONF) &
|
||||
~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL));
|
||||
else
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
adm5120_get_reg(ADM5120_CPUP_CONF) |
|
||||
(portmask << ADM5120_DISMCSHIFT));
|
||||
}
|
||||
|
||||
static void adm5120_write_mac(struct net_device *dev)
|
||||
{
|
||||
struct adm5120_sw *priv = netdev_priv(dev);
|
||||
unsigned char *mac = dev->dev_addr;
|
||||
|
||||
adm5120_set_reg(ADM5120_MAC_WT1,
|
||||
mac[2] | (mac[3]<<8) | (mac[4]<<16) | (mac[5]<<24));
|
||||
adm5120_set_reg(ADM5120_MAC_WT0, (priv->port<<3) |
|
||||
(mac[0]<<16) | (mac[1]<<24) | ADM5120_MAC_WRITE | ADM5120_VLAN_EN);
|
||||
|
||||
while (!(adm5120_get_reg(ADM5120_MAC_WT0) & ADM5120_MAC_WRITE_DONE));
|
||||
}
|
||||
|
||||
static int adm5120_sw_set_mac_address(struct net_device *dev, void *p)
|
||||
{
|
||||
struct sockaddr *addr = p;
|
||||
|
||||
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
||||
adm5120_write_mac(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adm5120_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
||||
{
|
||||
int err;
|
||||
struct adm5120_sw_info info;
|
||||
struct adm5120_sw *priv = netdev_priv(dev);
|
||||
|
||||
switch(cmd) {
|
||||
case SIOCGADMINFO:
|
||||
info.magic = 0x5120;
|
||||
info.ports = adm5120_nrdevs;
|
||||
info.vlan = priv->port;
|
||||
err = copy_to_user(rq->ifr_data, &info, sizeof(info));
|
||||
if (err)
|
||||
return -EFAULT;
|
||||
break;
|
||||
case SIOCSMATRIX:
|
||||
if (!capable(CAP_NET_ADMIN))
|
||||
return -EPERM;
|
||||
err = copy_from_user(adm5120_eth_vlans, rq->ifr_data,
|
||||
sizeof(adm5120_eth_vlans));
|
||||
if (err)
|
||||
return -EFAULT;
|
||||
adm5120_set_vlan(adm5120_eth_vlans);
|
||||
break;
|
||||
case SIOCGMATRIX:
|
||||
err = copy_to_user(rq->ifr_data, adm5120_eth_vlans,
|
||||
sizeof(adm5120_eth_vlans));
|
||||
if (err)
|
||||
return -EFAULT;
|
||||
break;
|
||||
case SIOCGETBW:
|
||||
err = copy_to_user(rq->ifr_data, bw_matrix, sizeof(bw_matrix));
|
||||
if (err)
|
||||
return -EFAULT;
|
||||
break;
|
||||
case SIOCSETBW:
|
||||
if (!capable(CAP_NET_ADMIN))
|
||||
return -EPERM;
|
||||
err = copy_from_user(bw_matrix, rq->ifr_data, sizeof(bw_matrix));
|
||||
if (err)
|
||||
return -EFAULT;
|
||||
adm5120_set_bw(bw_matrix);
|
||||
break;
|
||||
default:
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void adm5120_dma_tx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
|
||||
int num)
|
||||
{
|
||||
memset(dma, 0, sizeof(struct adm5120_dma)*num);
|
||||
dma[num-1].data |= ADM5120_DMA_RINGEND;
|
||||
memset(skbl, 0, sizeof(struct skb*)*num);
|
||||
}
|
||||
|
||||
static void adm5120_dma_rx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
|
||||
int num)
|
||||
{
|
||||
int i;
|
||||
|
||||
memset(dma, 0, sizeof(struct adm5120_dma)*num);
|
||||
for (i=0; i<num; i++) {
|
||||
skbl[i] = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
|
||||
if (!skbl[i]) {
|
||||
i=num;
|
||||
break;
|
||||
}
|
||||
skb_reserve(skbl[i], NET_IP_ALIGN);
|
||||
adm5120_rx_dma_update(&dma[i], skbl[i], (num-1==i));
|
||||
}
|
||||
}
|
||||
|
||||
static int __init adm5120_sw_init(void)
|
||||
{
|
||||
int i, err;
|
||||
struct net_device *dev;
|
||||
|
||||
err = request_irq(ADM5120_IRQ_SWITCH, adm5120_sw_irq, 0, "ethernet switch", NULL);
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
adm5120_nrdevs = adm5120_eth_num_ports;
|
||||
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
ADM5120_DISCCPUPORT | ADM5120_CRC_PADDING |
|
||||
ADM5120_DISUNALL | ADM5120_DISMCALL);
|
||||
adm5120_set_reg(ADM5120_PORT_CONF0, ADM5120_ENMC | ADM5120_ENBP | ADM5120_PORTDISALL);
|
||||
|
||||
adm5120_set_reg(ADM5120_PHY_CNTL2, adm5120_get_reg(ADM5120_PHY_CNTL2) |
|
||||
ADM5120_AUTONEG | ADM5120_NORMAL | ADM5120_AUTOMDIX);
|
||||
adm5120_set_reg(ADM5120_PHY_CNTL3, adm5120_get_reg(ADM5120_PHY_CNTL3) |
|
||||
ADM5120_PHY_NTH);
|
||||
|
||||
/* Force all the packets from all ports are low priority */
|
||||
adm5120_set_reg(ADM5120_PRI_CNTL, 0);
|
||||
|
||||
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
|
||||
adm5120_set_reg(ADM5120_INT_ST, ADM5120_INTMASKALL);
|
||||
|
||||
adm5120_dma_txh = (void *)KSEG1ADDR((u32)adm5120_dma_txh_v);
|
||||
adm5120_dma_txl = (void *)KSEG1ADDR((u32)adm5120_dma_txl_v);
|
||||
adm5120_dma_rxh = (void *)KSEG1ADDR((u32)adm5120_dma_rxh_v);
|
||||
adm5120_dma_rxl = (void *)KSEG1ADDR((u32)adm5120_dma_rxl_v);
|
||||
|
||||
adm5120_dma_tx_init(adm5120_dma_txh, adm5120_skb_txh, ADM5120_DMA_TXH);
|
||||
adm5120_dma_tx_init(adm5120_dma_txl, adm5120_skb_txl, ADM5120_DMA_TXL);
|
||||
adm5120_dma_rx_init(adm5120_dma_rxh, adm5120_skb_rxh, ADM5120_DMA_RXH);
|
||||
adm5120_dma_rx_init(adm5120_dma_rxl, adm5120_skb_rxl, ADM5120_DMA_RXL);
|
||||
adm5120_set_reg(ADM5120_SEND_HBADDR, KSEG1ADDR(adm5120_dma_txh));
|
||||
adm5120_set_reg(ADM5120_SEND_LBADDR, KSEG1ADDR(adm5120_dma_txl));
|
||||
adm5120_set_reg(ADM5120_RECEIVE_HBADDR, KSEG1ADDR(adm5120_dma_rxh));
|
||||
adm5120_set_reg(ADM5120_RECEIVE_LBADDR, KSEG1ADDR(adm5120_dma_rxl));
|
||||
|
||||
for (i = 0; i < SW_DEVS; i++) {
|
||||
adm5120_devs[i] = alloc_etherdev(sizeof(struct adm5120_sw));
|
||||
if (!adm5120_devs[i]) {
|
||||
err = -ENOMEM;
|
||||
goto out_int;
|
||||
}
|
||||
|
||||
dev = adm5120_devs[i];
|
||||
SET_MODULE_OWNER(dev);
|
||||
memset(netdev_priv(dev), 0, sizeof(struct adm5120_sw));
|
||||
((struct adm5120_sw*)netdev_priv(dev))->port = i;
|
||||
dev->base_addr = SW_BASE;
|
||||
dev->irq = ADM5120_IRQ_SWITCH;
|
||||
dev->open = adm5120_sw_open;
|
||||
dev->hard_start_xmit = adm5120_sw_tx;
|
||||
dev->stop = adm5120_sw_stop;
|
||||
dev->get_stats = adm5120_sw_stats;
|
||||
dev->set_multicast_list = adm5120_set_multicast_list;
|
||||
dev->do_ioctl = adm5120_do_ioctl;
|
||||
dev->tx_timeout = adm5120_tx_timeout;
|
||||
dev->watchdog_timeo = ETH_TX_TIMEOUT;
|
||||
dev->set_mac_address = adm5120_sw_set_mac_address;
|
||||
dev->poll = adm5120_rx;
|
||||
dev->weight = 64;
|
||||
|
||||
memcpy(dev->dev_addr, adm5120_eth_macs[i], 6);
|
||||
adm5120_write_mac(dev);
|
||||
|
||||
if ((err = register_netdev(dev))) {
|
||||
free_netdev(dev);
|
||||
goto out_int;
|
||||
}
|
||||
printk(KERN_INFO "%s: ADM5120 switch port%d\n", dev->name, i);
|
||||
}
|
||||
/* setup vlan/port mapping after devs are filled up */
|
||||
adm5120_set_vlan(adm5120_eth_vlans);
|
||||
|
||||
adm5120_set_reg(ADM5120_CPUP_CONF,
|
||||
ADM5120_CRC_PADDING | ADM5120_DISUNALL | ADM5120_DISMCALL);
|
||||
|
||||
return 0;
|
||||
|
||||
out_int:
|
||||
/* Undo everything that did succeed */
|
||||
for (; i; i--) {
|
||||
unregister_netdev(adm5120_devs[i-1]);
|
||||
free_netdev(adm5120_devs[i-1]);
|
||||
}
|
||||
free_irq(ADM5120_IRQ_SWITCH, NULL);
|
||||
out:
|
||||
printk(KERN_ERR "ADM5120 Ethernet switch init failed\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit adm5120_sw_exit(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < SW_DEVS; i++) {
|
||||
unregister_netdev(adm5120_devs[i]);
|
||||
free_netdev(adm5120_devs[i]);
|
||||
}
|
||||
|
||||
free_irq(ADM5120_IRQ_SWITCH, NULL);
|
||||
|
||||
for (i = 0; i < ADM5120_DMA_RXH; i++) {
|
||||
if (!adm5120_skb_rxh[i])
|
||||
break;
|
||||
kfree_skb(adm5120_skb_rxh[i]);
|
||||
}
|
||||
for (i = 0; i < ADM5120_DMA_RXL; i++) {
|
||||
if (!adm5120_skb_rxl[i])
|
||||
break;
|
||||
kfree_skb(adm5120_skb_rxl[i]);
|
||||
}
|
||||
}
|
||||
|
||||
module_init(adm5120_sw_init);
|
||||
module_exit(adm5120_sw_exit);
|
||||
Reference in New Issue
Block a user