*
*
*/
+#include <linux/capability.h>
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/phy.h>
+#include <linux/platform_device.h>
+
+#include <asm/cpu.h>
#include <asm/mipsregs.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/processor.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/cpu.h>
+#include <au1000.h>
+#include <au1xxx_eth.h>
+#include <prom.h>
+
#include "au1000_eth.h"
#ifdef AU1000_ETH_DEBUG
static int au1000_debug = 3;
#endif
+#define AU1000_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK)
+
#define DRV_NAME "au1000_eth"
-#define DRV_VERSION "1.6"
+#define DRV_VERSION "1.7"
#define DRV_AUTHOR "Pete Popov <ppopov@embeddedalley.com>"
#define DRV_DESC "Au1xxx on-chip Ethernet driver"
MODULE_AUTHOR(DRV_AUTHOR);
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL");
-
-// prototypes
-static void hard_stop(struct net_device *);
-static void enable_rx_tx(struct net_device *dev);
-static struct net_device * au1000_probe(int port_num);
-static int au1000_init(struct net_device *);
-static int au1000_open(struct net_device *);
-static int au1000_close(struct net_device *);
-static int au1000_tx(struct sk_buff *, struct net_device *);
-static int au1000_rx(struct net_device *);
-static irqreturn_t au1000_interrupt(int, void *);
-static void au1000_tx_timeout(struct net_device *);
-static void set_rx_mode(struct net_device *);
-static struct net_device_stats *au1000_get_stats(struct net_device *);
-static int au1000_ioctl(struct net_device *, struct ifreq *, int);
-static int mdio_read(struct net_device *, int, int);
-static void mdio_write(struct net_device *, int, int, u16);
-static void au1000_adjust_link(struct net_device *);
-static void enable_mac(struct net_device *, int);
-
-// externs
-extern int get_ethernet_addr(char *ethernet_addr);
-extern void str2eaddr(unsigned char *ea, unsigned char *str);
-extern char * prom_getcmdline(void);
+MODULE_VERSION(DRV_VERSION);
/*
* Theory of operation
*
* PHY detection algorithm
*
- * If AU1XXX_PHY_STATIC_CONFIG is undefined, the PHY setup is
+ * If phy_static_config is undefined, the PHY setup is
* autodetected:
*
* mii_probe() first searches the current MAC's MII bus for a PHY,
- * selecting the first (or last, if AU1XXX_PHY_SEARCH_HIGHEST_ADDR is
+ * selecting the first (or last, if phy_search_highest_addr is
* defined) PHY address not already claimed by another netdev.
*
* If nothing was found that way when searching for the 2nd ethernet
- * controller's PHY and AU1XXX_PHY1_SEARCH_ON_MAC0 is defined, then
+ * controller's PHY and phy1_search_mac0 is defined, then
* the first MII bus is searched as well for an unclaimed PHY; this is
* needed in case of a dual-PHY accessible only through the MAC0's MII
* bus.
* controller is not registered to the network subsystem.
*/
-/* autodetection defaults */
-#undef AU1XXX_PHY_SEARCH_HIGHEST_ADDR
-#define AU1XXX_PHY1_SEARCH_ON_MAC0
+/* autodetection defaults: phy1_search_mac0 */
/* static PHY setup
*
* specific irq-map
*/
-#if defined(CONFIG_MIPS_BOSPORUS)
-/*
- * Micrel/Kendin 5 port switch attached to MAC0,
- * MAC0 is associated with PHY address 5 (== WAN port)
- * MAC1 is not associated with any PHY, since it's connected directly
- * to the switch.
- * no interrupts are used
- */
-# define AU1XXX_PHY_STATIC_CONFIG
+static void au1000_enable_mac(struct net_device *dev, int force_reset)
+{
+ unsigned long flags;
+ struct au1000_private *aup = netdev_priv(dev);
-# define AU1XXX_PHY0_ADDR 5
-# define AU1XXX_PHY0_BUSID 0
-# undef AU1XXX_PHY0_IRQ
+ spin_lock_irqsave(&aup->lock, flags);
-# undef AU1XXX_PHY1_ADDR
-# undef AU1XXX_PHY1_BUSID
-# undef AU1XXX_PHY1_IRQ
-#endif
+ if(force_reset || (!aup->mac_enabled)) {
+ *aup->enable = MAC_EN_CLOCK_ENABLE;
+ au_sync_delay(2);
+ *aup->enable = (MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
+ | MAC_EN_CLOCK_ENABLE);
+ au_sync_delay(2);
-#if defined(AU1XXX_PHY0_BUSID) && (AU1XXX_PHY0_BUSID > 0)
-# error MAC0-associated PHY attached 2nd MACs MII bus not supported yet
-#endif
+ aup->mac_enabled = 1;
+ }
+
+ spin_unlock_irqrestore(&aup->lock, flags);
+}
/*
* MII operations
*/
-static int mdio_read(struct net_device *dev, int phy_addr, int reg)
+static int au1000_mdio_read(struct net_device *dev, int phy_addr, int reg)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
volatile u32 *const mii_control_reg = &aup->mac->mii_control;
volatile u32 *const mii_data_reg = &aup->mac->mii_data;
u32 timedout = 20;
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: read_MII busy timeout!!\n",
- dev->name);
+ netdev_err(dev, "read_MII busy timeout!!\n");
return -1;
}
}
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: mdio_read busy timeout!!\n",
- dev->name);
+ netdev_err(dev, "mdio_read busy timeout!!\n");
return -1;
}
}
return (int)*mii_data_reg;
}
-static void mdio_write(struct net_device *dev, int phy_addr, int reg, u16 value)
+static void au1000_mdio_write(struct net_device *dev, int phy_addr,
+ int reg, u16 value)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
volatile u32 *const mii_control_reg = &aup->mac->mii_control;
volatile u32 *const mii_data_reg = &aup->mac->mii_data;
u32 timedout = 20;
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: mdio_write busy timeout!!\n",
- dev->name);
+ netdev_err(dev, "mdio_write busy timeout!!\n");
return;
}
}
*mii_control_reg = mii_control;
}
-static int mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
+static int au1000_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
{
/* WARNING: bus->phy_map[phy_addr].attached_dev == dev does
* _NOT_ hold (e.g. when PHY is accessed through other MAC's MII bus) */
struct net_device *const dev = bus->priv;
- enable_mac(dev, 0); /* make sure the MAC associated with this
+ au1000_enable_mac(dev, 0); /* make sure the MAC associated with this
* mii_bus is enabled */
- return mdio_read(dev, phy_addr, regnum);
+ return au1000_mdio_read(dev, phy_addr, regnum);
}
-static int mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
- u16 value)
+static int au1000_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
+ u16 value)
{
struct net_device *const dev = bus->priv;
- enable_mac(dev, 0); /* make sure the MAC associated with this
+ au1000_enable_mac(dev, 0); /* make sure the MAC associated with this
* mii_bus is enabled */
- mdio_write(dev, phy_addr, regnum, value);
+ au1000_mdio_write(dev, phy_addr, regnum, value);
return 0;
}
-static int mdiobus_reset(struct mii_bus *bus)
+static int au1000_mdiobus_reset(struct mii_bus *bus)
{
struct net_device *const dev = bus->priv;
- enable_mac(dev, 0); /* make sure the MAC associated with this
+ au1000_enable_mac(dev, 0); /* make sure the MAC associated with this
* mii_bus is enabled */
return 0;
}
-static int mii_probe (struct net_device *dev)
+static void au1000_hard_stop(struct net_device *dev)
{
- struct au1000_private *const aup = (struct au1000_private *) dev->priv;
- struct phy_device *phydev = NULL;
+ struct au1000_private *aup = netdev_priv(dev);
-#if defined(AU1XXX_PHY_STATIC_CONFIG)
- BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
+ netif_dbg(aup, drv, dev, "hard stop\n");
- if(aup->mac_id == 0) { /* get PHY0 */
-# if defined(AU1XXX_PHY0_ADDR)
- phydev = au_macs[AU1XXX_PHY0_BUSID]->mii_bus.phy_map[AU1XXX_PHY0_ADDR];
-# else
- printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
- dev->name);
- return 0;
-# endif /* defined(AU1XXX_PHY0_ADDR) */
- } else if (aup->mac_id == 1) { /* get PHY1 */
-# if defined(AU1XXX_PHY1_ADDR)
- phydev = au_macs[AU1XXX_PHY1_BUSID]->mii_bus.phy_map[AU1XXX_PHY1_ADDR];
-# else
- printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
- dev->name);
- return 0;
-# endif /* defined(AU1XXX_PHY1_ADDR) */
+ aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
+ au_sync_delay(10);
+}
+
+static void au1000_enable_rx_tx(struct net_device *dev)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+
+ netif_dbg(aup, hw, dev, "enable_rx_tx\n");
+
+ aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
+ au_sync_delay(10);
+}
+
+static void
+au1000_adjust_link(struct net_device *dev)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ struct phy_device *phydev = aup->phy_dev;
+ unsigned long flags;
+
+ int status_change = 0;
+
+ BUG_ON(!aup->phy_dev);
+
+ spin_lock_irqsave(&aup->lock, flags);
+
+ if (phydev->link && (aup->old_speed != phydev->speed)) {
+ /* speed changed */
+
+ switch (phydev->speed) {
+ case SPEED_10:
+ case SPEED_100:
+ break;
+ default:
+ netdev_warn(dev, "Speed (%d) is not 10/100 ???\n",
+ phydev->speed);
+ break;
+ }
+
+ aup->old_speed = phydev->speed;
+
+ status_change = 1;
+ }
+
+ if (phydev->link && (aup->old_duplex != phydev->duplex)) {
+ /* duplex mode changed */
+
+ /* switching duplex mode requires to disable rx and tx! */
+ au1000_hard_stop(dev);
+
+ if (DUPLEX_FULL == phydev->duplex)
+ aup->mac->control = ((aup->mac->control
+ | MAC_FULL_DUPLEX)
+ & ~MAC_DISABLE_RX_OWN);
+ else
+ aup->mac->control = ((aup->mac->control
+ & ~MAC_FULL_DUPLEX)
+ | MAC_DISABLE_RX_OWN);
+ au_sync_delay(1);
+
+ au1000_enable_rx_tx(dev);
+ aup->old_duplex = phydev->duplex;
+
+ status_change = 1;
}
-#else /* defined(AU1XXX_PHY_STATIC_CONFIG) */
- int phy_addr;
+ if (phydev->link != aup->old_link) {
+ /* link state changed */
- /* find the first (lowest address) PHY on the current MAC's MII bus */
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
- if (aup->mii_bus.phy_map[phy_addr]) {
- phydev = aup->mii_bus.phy_map[phy_addr];
-# if !defined(AU1XXX_PHY_SEARCH_HIGHEST_ADDR)
- break; /* break out with first one found */
-# endif
+ if (!phydev->link) {
+ /* link went down */
+ aup->old_speed = 0;
+ aup->old_duplex = -1;
}
-# if defined(AU1XXX_PHY1_SEARCH_ON_MAC0)
- /* try harder to find a PHY */
- if (!phydev && (aup->mac_id == 1)) {
- /* no PHY found, maybe we have a dual PHY? */
- printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, "
- "let's see if it's attached to MAC0...\n");
+ aup->old_link = phydev->link;
+ status_change = 1;
+ }
+
+ spin_unlock_irqrestore(&aup->lock, flags);
+
+ if (status_change) {
+ if (phydev->link)
+ netdev_info(dev, "link up (%d/%s)\n",
+ phydev->speed,
+ DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
+ else
+ netdev_info(dev, "link down\n");
+ }
+}
+
+static int au1000_mii_probe (struct net_device *dev)
+{
+ struct au1000_private *const aup = netdev_priv(dev);
+ struct phy_device *phydev = NULL;
+
+ if (aup->phy_static_config) {
+ BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
+
+ if (aup->phy_addr)
+ phydev = aup->mii_bus->phy_map[aup->phy_addr];
+ else
+ netdev_info(dev, "using PHY-less setup\n");
+ return 0;
+ } else {
+ int phy_addr;
+
+ /* find the first (lowest address) PHY on the current MAC's MII bus */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
+ if (aup->mii_bus->phy_map[phy_addr]) {
+ phydev = aup->mii_bus->phy_map[phy_addr];
+ if (!aup->phy_search_highest_addr)
+ break; /* break out with first one found */
+ }
- BUG_ON(!au_macs[0]);
+ if (aup->phy1_search_mac0) {
+ /* try harder to find a PHY */
+ if (!phydev && (aup->mac_id == 1)) {
+ /* no PHY found, maybe we have a dual PHY? */
+ dev_info(&dev->dev, ": no PHY found on MAC1, "
+ "let's see if it's attached to MAC0...\n");
- /* find the first (lowest address) non-attached PHY on
- * the MAC0 MII bus */
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
- struct phy_device *const tmp_phydev =
- au_macs[0]->mii_bus.phy_map[phy_addr];
+ /* find the first (lowest address) non-attached PHY on
+ * the MAC0 MII bus */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+ struct phy_device *const tmp_phydev =
+ aup->mii_bus->phy_map[phy_addr];
- if (!tmp_phydev)
- continue; /* no PHY here... */
+ if (aup->mac_id == 1)
+ break;
- if (tmp_phydev->attached_dev)
- continue; /* already claimed by MAC0 */
+ if (!tmp_phydev)
+ continue; /* no PHY here... */
- phydev = tmp_phydev;
- break; /* found it */
+ if (tmp_phydev->attached_dev)
+ continue; /* already claimed by MAC0 */
+
+ phydev = tmp_phydev;
+ break; /* found it */
+ }
+ }
}
}
-# endif /* defined(AU1XXX_PHY1_SEARCH_OTHER_BUS) */
-#endif /* defined(AU1XXX_PHY_STATIC_CONFIG) */
if (!phydev) {
- printk (KERN_ERR DRV_NAME ":%s: no PHY found\n", dev->name);
+ netdev_err(dev, "no PHY found\n");
return -1;
}
/* now we are supposed to have a proper phydev, to attach to... */
- BUG_ON(!phydev);
BUG_ON(phydev->attached_dev);
- phydev = phy_connect(dev, phydev->dev.bus_id, &au1000_adjust_link, 0,
- PHY_INTERFACE_MODE_MII);
+ phydev = phy_connect(dev, dev_name(&phydev->dev), &au1000_adjust_link,
+ 0, PHY_INTERFACE_MODE_MII);
if (IS_ERR(phydev)) {
- printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+ netdev_err(dev, "Could not attach to PHY\n");
return PTR_ERR(phydev);
}
aup->old_duplex = -1;
aup->phy_dev = phydev;
- printk(KERN_INFO "%s: attached PHY driver [%s] "
+ netdev_info(dev, "attached PHY driver [%s] "
"(mii_bus:phy_addr=%s, irq=%d)\n",
- dev->name, phydev->drv->name, phydev->dev.bus_id, phydev->irq);
+ phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
return 0;
}
* has the virtual and dma address of a buffer suitable for
* both, receive and transmit operations.
*/
-static db_dest_t *GetFreeDB(struct au1000_private *aup)
+static db_dest_t *au1000_GetFreeDB(struct au1000_private *aup)
{
db_dest_t *pDB;
pDB = aup->pDBfree;
return pDB;
}
-void ReleaseDB(struct au1000_private *aup, db_dest_t *pDB)
+void au1000_ReleaseDB(struct au1000_private *aup, db_dest_t *pDB)
{
db_dest_t *pDBfree = aup->pDBfree;
if (pDBfree)
aup->pDBfree = pDB;
}
-static void enable_rx_tx(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: enable_rx_tx\n", dev->name);
-
- aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
- au_sync_delay(10);
-}
-
-static void hard_stop(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: hard stop\n", dev->name);
-
- aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
- au_sync_delay(10);
-}
-
-static void enable_mac(struct net_device *dev, int force_reset)
-{
- unsigned long flags;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- spin_lock_irqsave(&aup->lock, flags);
-
- if(force_reset || (!aup->mac_enabled)) {
- *aup->enable = MAC_EN_CLOCK_ENABLE;
- au_sync_delay(2);
- *aup->enable = (MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
- | MAC_EN_CLOCK_ENABLE);
- au_sync_delay(2);
-
- aup->mac_enabled = 1;
- }
-
- spin_unlock_irqrestore(&aup->lock, flags);
-}
-
-static void reset_mac_unlocked(struct net_device *dev)
+static void au1000_reset_mac_unlocked(struct net_device *dev)
{
- struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *const aup = netdev_priv(dev);
int i;
- hard_stop(dev);
+ au1000_hard_stop(dev);
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
}
-static void reset_mac(struct net_device *dev)
+static void au1000_reset_mac(struct net_device *dev)
{
- struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *const aup = netdev_priv(dev);
unsigned long flags;
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: reset mac, aup %x\n",
- dev->name, (unsigned)aup);
+ netif_dbg(aup, hw, dev, "reset mac, aup %x\n",
+ (unsigned)aup);
spin_lock_irqsave(&aup->lock, flags);
- reset_mac_unlocked (dev);
+ au1000_reset_mac_unlocked (dev);
spin_unlock_irqrestore(&aup->lock, flags);
}
* these are not descriptors sitting in memory.
*/
static void
-setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base)
+au1000_setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base)
{
int i;
}
}
-static struct {
- u32 base_addr;
- u32 macen_addr;
- int irq;
- struct net_device *dev;
-} iflist[2] = {
-#ifdef CONFIG_SOC_AU1000
- {AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT},
- {AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1100
- {AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1500
- {AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT},
- {AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1550
- {AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT},
- {AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT}
-#endif
-};
-
-static int num_ifs;
-
-/*
- * Setup the base address and interupt of the Au1xxx ethernet macs
- * based on cpu type and whether the interface is enabled in sys_pinfunc
- * register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0.
- */
-static int __init au1000_init_module(void)
-{
- int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4);
- struct net_device *dev;
- int i, found_one = 0;
-
- num_ifs = NUM_ETH_INTERFACES - ni;
-
- for(i = 0; i < num_ifs; i++) {
- dev = au1000_probe(i);
- iflist[i].dev = dev;
- if (dev)
- found_one++;
- }
- if (!found_one)
- return -ENODEV;
- return 0;
-}
-
/*
* ethtool operations
*/
static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
if (aup->phy_dev)
return phy_ethtool_gset(aup->phy_dev, cmd);
static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
if (!capable(CAP_NET_ADMIN))
return -EPERM;
static void
au1000_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
strcpy(info->driver, DRV_NAME);
strcpy(info->version, DRV_VERSION);
info->regdump_len = 0;
}
+static void au1000_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ aup->msg_enable = value;
+}
+
+static u32 au1000_get_msglevel(struct net_device *dev)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ return aup->msg_enable;
+}
+
static const struct ethtool_ops au1000_ethtool_ops = {
.get_settings = au1000_get_settings,
.set_settings = au1000_set_settings,
.get_drvinfo = au1000_get_drvinfo,
.get_link = ethtool_op_get_link,
+ .get_msglevel = au1000_get_msglevel,
+ .set_msglevel = au1000_set_msglevel,
};
-static struct net_device * au1000_probe(int port_num)
+
+/*
+ * Initialize the interface.
+ *
+ * When the device powers up, the clocks are disabled and the
+ * mac is in reset state. When the interface is closed, we
+ * do the same -- reset the device and disable the clocks to
+ * conserve power. Thus, whenever au1000_init() is called,
+ * the device should already be in reset state.
+ */
+static int au1000_init(struct net_device *dev)
{
- static unsigned version_printed = 0;
- struct au1000_private *aup = NULL;
- struct net_device *dev = NULL;
- db_dest_t *pDB, *pDBfree;
- char *pmac, *argptr;
- char ethaddr[6];
- int irq, i, err;
- u32 base, macen;
+ struct au1000_private *aup = netdev_priv(dev);
+ unsigned long flags;
+ int i;
+ u32 control;
- if (port_num >= NUM_ETH_INTERFACES)
- return NULL;
+ netif_dbg(aup, hw, dev, "au1000_init\n");
- base = CPHYSADDR(iflist[port_num].base_addr );
- macen = CPHYSADDR(iflist[port_num].macen_addr);
- irq = iflist[port_num].irq;
+ /* bring the device out of reset */
+ au1000_enable_mac(dev, 1);
- if (!request_mem_region( base, MAC_IOSIZE, "Au1x00 ENET") ||
- !request_mem_region(macen, 4, "Au1x00 ENET"))
- return NULL;
+ spin_lock_irqsave(&aup->lock, flags);
- if (version_printed++ == 0)
- printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
+ aup->mac->control = 0;
+ aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2;
+ aup->tx_tail = aup->tx_head;
+ aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2;
- dev = alloc_etherdev(sizeof(struct au1000_private));
- if (!dev) {
- printk(KERN_ERR "%s: alloc_etherdev failed\n", DRV_NAME);
- return NULL;
+ aup->mac->mac_addr_high = dev->dev_addr[5]<<8 | dev->dev_addr[4];
+ aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 |
+ dev->dev_addr[1]<<8 | dev->dev_addr[0];
+
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE;
}
+ au_sync();
- if ((err = register_netdev(dev)) != 0) {
- printk(KERN_ERR "%s: Cannot register net device, error %d\n",
- DRV_NAME, err);
- free_netdev(dev);
- return NULL;
+ control = MAC_RX_ENABLE | MAC_TX_ENABLE;
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+ control |= MAC_BIG_ENDIAN;
+#endif
+ if (aup->phy_dev) {
+ if (aup->phy_dev->link && (DUPLEX_FULL == aup->phy_dev->duplex))
+ control |= MAC_FULL_DUPLEX;
+ else
+ control |= MAC_DISABLE_RX_OWN;
+ } else { /* PHY-less op, assume full-duplex */
+ control |= MAC_FULL_DUPLEX;
}
- printk("%s: Au1xx0 Ethernet found at 0x%x, irq %d\n",
- dev->name, base, irq);
+ aup->mac->control = control;
+ aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
+ au_sync();
- aup = dev->priv;
+ spin_unlock_irqrestore(&aup->lock, flags);
+ return 0;
+}
- /* Allocate the data buffers */
- /* Snooping works fine with eth on all au1xxx */
- aup->vaddr = (u32)dma_alloc_noncoherent(NULL, MAX_BUF_SIZE *
- (NUM_TX_BUFFS + NUM_RX_BUFFS),
- &aup->dma_addr, 0);
- if (!aup->vaddr) {
- free_netdev(dev);
- release_mem_region( base, MAC_IOSIZE);
- release_mem_region(macen, 4);
- return NULL;
- }
+static inline void au1000_update_rx_stats(struct net_device *dev, u32 status)
+{
+ struct net_device_stats *ps = &dev->stats;
- /* aup->mac is the base address of the MAC's registers */
- aup->mac = (volatile mac_reg_t *)iflist[port_num].base_addr;
+ ps->rx_packets++;
+ if (status & RX_MCAST_FRAME)
+ ps->multicast++;
- /* Setup some variables for quick register address access */
- aup->enable = (volatile u32 *)iflist[port_num].macen_addr;
- aup->mac_id = port_num;
- au_macs[port_num] = aup;
+ if (status & RX_ERROR) {
+ ps->rx_errors++;
+ if (status & RX_MISSED_FRAME)
+ ps->rx_missed_errors++;
+ if (status & (RX_OVERLEN | RX_RUNT | RX_LEN_ERROR))
+ ps->rx_length_errors++;
+ if (status & RX_CRC_ERROR)
+ ps->rx_crc_errors++;
+ if (status & RX_COLL)
+ ps->collisions++;
+ } else
+ ps->rx_bytes += status & RX_FRAME_LEN_MASK;
- if (port_num == 0) {
- /* Check the environment variables first */
- if (get_ethernet_addr(ethaddr) == 0)
- memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
- else {
- /* Check command line */
- argptr = prom_getcmdline();
- if ((pmac = strstr(argptr, "ethaddr=")) == NULL)
- printk(KERN_INFO "%s: No MAC address found\n",
- dev->name);
- /* Use the hard coded MAC addresses */
- else {
- str2eaddr(ethaddr, pmac + strlen("ethaddr="));
- memcpy(au1000_mac_addr, ethaddr,
- sizeof(au1000_mac_addr));
- }
- }
+}
- setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
- } else if (port_num == 1)
- setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
+/*
+ * Au1000 receive routine.
+ */
+static int au1000_rx(struct net_device *dev)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ struct sk_buff *skb;
+ volatile rx_dma_t *prxd;
+ u32 buff_stat, status;
+ db_dest_t *pDB;
+ u32 frmlen;
- /*
- * Assign to the Ethernet ports two consecutive MAC addresses
- * to match those that are printed on their stickers
- */
- memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
- dev->dev_addr[5] += port_num;
+ netif_dbg(aup, rx_status, dev, "au1000_rx head %d\n", aup->rx_head);
- *aup->enable = 0;
- aup->mac_enabled = 0;
-
- aup->mii_bus.priv = dev;
- aup->mii_bus.read = mdiobus_read;
- aup->mii_bus.write = mdiobus_write;
- aup->mii_bus.reset = mdiobus_reset;
- aup->mii_bus.name = "au1000_eth_mii";
- aup->mii_bus.id = aup->mac_id;
- aup->mii_bus.irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
- for(i = 0; i < PHY_MAX_ADDR; ++i)
- aup->mii_bus.irq[i] = PHY_POLL;
+ prxd = aup->rx_dma_ring[aup->rx_head];
+ buff_stat = prxd->buff_stat;
+ while (buff_stat & RX_T_DONE) {
+ status = prxd->status;
+ pDB = aup->rx_db_inuse[aup->rx_head];
+ au1000_update_rx_stats(dev, status);
+ if (!(status & RX_ERROR)) {
- /* if known, set corresponding PHY IRQs */
-#if defined(AU1XXX_PHY_STATIC_CONFIG)
-# if defined(AU1XXX_PHY0_IRQ)
- if (AU1XXX_PHY0_BUSID == aup->mii_bus.id)
- aup->mii_bus.irq[AU1XXX_PHY0_ADDR] = AU1XXX_PHY0_IRQ;
-# endif
-# if defined(AU1XXX_PHY1_IRQ)
- if (AU1XXX_PHY1_BUSID == aup->mii_bus.id)
- aup->mii_bus.irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ;
-# endif
-#endif
- mdiobus_register(&aup->mii_bus);
+ /* good frame */
+ frmlen = (status & RX_FRAME_LEN_MASK);
+ frmlen -= 4; /* Remove FCS */
+ skb = dev_alloc_skb(frmlen + 2);
+ if (skb == NULL) {
+ netdev_err(dev, "Memory squeeze, dropping packet.\n");
+ dev->stats.rx_dropped++;
+ continue;
+ }
+ skb_reserve(skb, 2); /* 16 byte IP header align */
+ skb_copy_to_linear_data(skb,
+ (unsigned char *)pDB->vaddr, frmlen);
+ skb_put(skb, frmlen);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb); /* pass the packet to upper layers */
+ } else {
+ if (au1000_debug > 4) {
+ if (status & RX_MISSED_FRAME)
+ printk("rx miss\n");
+ if (status & RX_WDOG_TIMER)
+ printk("rx wdog\n");
+ if (status & RX_RUNT)
+ printk("rx runt\n");
+ if (status & RX_OVERLEN)
+ printk("rx overlen\n");
+ if (status & RX_COLL)
+ printk("rx coll\n");
+ if (status & RX_MII_ERROR)
+ printk("rx mii error\n");
+ if (status & RX_CRC_ERROR)
+ printk("rx crc error\n");
+ if (status & RX_LEN_ERROR)
+ printk("rx len error\n");
+ if (status & RX_U_CNTRL_FRAME)
+ printk("rx u control frame\n");
+ }
+ }
+ prxd->buff_stat = (u32)(pDB->dma_addr | RX_DMA_ENABLE);
+ aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1);
+ au_sync();
- if (mii_probe(dev) != 0) {
- goto err_out;
+ /* next descriptor */
+ prxd = aup->rx_dma_ring[aup->rx_head];
+ buff_stat = prxd->buff_stat;
}
+ return 0;
+}
- pDBfree = NULL;
- /* setup the data buffer descriptors and attach a buffer to each one */
- pDB = aup->db;
- for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
- pDB->pnext = pDBfree;
- pDBfree = pDB;
- pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
- pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
- pDB++;
- }
- aup->pDBfree = pDBfree;
+static void au1000_update_tx_stats(struct net_device *dev, u32 status)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ struct net_device_stats *ps = &dev->stats;
- for (i = 0; i < NUM_RX_DMA; i++) {
- pDB = GetFreeDB(aup);
- if (!pDB) {
- goto err_out;
- }
- aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
- aup->rx_db_inuse[i] = pDB;
- }
- for (i = 0; i < NUM_TX_DMA; i++) {
- pDB = GetFreeDB(aup);
- if (!pDB) {
- goto err_out;
+ if (status & TX_FRAME_ABORTED) {
+ if (!aup->phy_dev || (DUPLEX_FULL == aup->phy_dev->duplex)) {
+ if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) {
+ /* any other tx errors are only valid
+ * in half duplex mode */
+ ps->tx_errors++;
+ ps->tx_aborted_errors++;
+ }
+ } else {
+ ps->tx_errors++;
+ ps->tx_aborted_errors++;
+ if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER))
+ ps->tx_carrier_errors++;
}
- aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
- aup->tx_dma_ring[i]->len = 0;
- aup->tx_db_inuse[i] = pDB;
- }
-
- spin_lock_init(&aup->lock);
- dev->base_addr = base;
- dev->irq = irq;
- dev->open = au1000_open;
- dev->hard_start_xmit = au1000_tx;
- dev->stop = au1000_close;
- dev->get_stats = au1000_get_stats;
- dev->set_multicast_list = &set_rx_mode;
- dev->do_ioctl = &au1000_ioctl;
- SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
- dev->tx_timeout = au1000_tx_timeout;
- dev->watchdog_timeo = ETH_TX_TIMEOUT;
-
- /*
- * The boot code uses the ethernet controller, so reset it to start
- * fresh. au1000_init() expects that the device is in reset state.
- */
- reset_mac(dev);
-
- return dev;
-
-err_out:
- /* here we should have a valid dev plus aup-> register addresses
- * so we can reset the mac properly.*/
- reset_mac(dev);
-
- for (i = 0; i < NUM_RX_DMA; i++) {
- if (aup->rx_db_inuse[i])
- ReleaseDB(aup, aup->rx_db_inuse[i]);
- }
- for (i = 0; i < NUM_TX_DMA; i++) {
- if (aup->tx_db_inuse[i])
- ReleaseDB(aup, aup->tx_db_inuse[i]);
}
- dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
- (void *)aup->vaddr, aup->dma_addr);
- unregister_netdev(dev);
- free_netdev(dev);
- release_mem_region( base, MAC_IOSIZE);
- release_mem_region(macen, 4);
- return NULL;
}
/*
- * Initialize the interface.
- *
- * When the device powers up, the clocks are disabled and the
- * mac is in reset state. When the interface is closed, we
- * do the same -- reset the device and disable the clocks to
- * conserve power. Thus, whenever au1000_init() is called,
- * the device should already be in reset state.
+ * Called from the interrupt service routine to acknowledge
+ * the TX DONE bits. This is a must if the irq is setup as
+ * edge triggered.
*/
-static int au1000_init(struct net_device *dev)
+static void au1000_tx_ack(struct net_device *dev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- u32 flags;
- int i;
- u32 control;
-
- if (au1000_debug > 4)
- printk("%s: au1000_init\n", dev->name);
-
- /* bring the device out of reset */
- enable_mac(dev, 1);
-
- spin_lock_irqsave(&aup->lock, flags);
+ struct au1000_private *aup = netdev_priv(dev);
+ volatile tx_dma_t *ptxd;
- aup->mac->control = 0;
- aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2;
- aup->tx_tail = aup->tx_head;
- aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2;
+ ptxd = aup->tx_dma_ring[aup->tx_tail];
- aup->mac->mac_addr_high = dev->dev_addr[5]<<8 | dev->dev_addr[4];
- aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 |
- dev->dev_addr[1]<<8 | dev->dev_addr[0];
+ while (ptxd->buff_stat & TX_T_DONE) {
+ au1000_update_tx_stats(dev, ptxd->status);
+ ptxd->buff_stat &= ~TX_T_DONE;
+ ptxd->len = 0;
+ au_sync();
- for (i = 0; i < NUM_RX_DMA; i++) {
- aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE;
- }
- au_sync();
+ aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1);
+ ptxd = aup->tx_dma_ring[aup->tx_tail];
- control = MAC_RX_ENABLE | MAC_TX_ENABLE;
-#ifndef CONFIG_CPU_LITTLE_ENDIAN
- control |= MAC_BIG_ENDIAN;
-#endif
- if (aup->phy_dev) {
- if (aup->phy_dev->link && (DUPLEX_FULL == aup->phy_dev->duplex))
- control |= MAC_FULL_DUPLEX;
- else
- control |= MAC_DISABLE_RX_OWN;
- } else { /* PHY-less op, assume full-duplex */
- control |= MAC_FULL_DUPLEX;
+ if (aup->tx_full) {
+ aup->tx_full = 0;
+ netif_wake_queue(dev);
+ }
}
-
- aup->mac->control = control;
- aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
- au_sync();
-
- spin_unlock_irqrestore(&aup->lock, flags);
- return 0;
}
-static void
-au1000_adjust_link(struct net_device *dev)
+/*
+ * Au1000 interrupt service routine.
+ */
+static irqreturn_t au1000_interrupt(int irq, void *dev_id)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct phy_device *phydev = aup->phy_dev;
- unsigned long flags;
-
- int status_change = 0;
-
- BUG_ON(!aup->phy_dev);
-
- spin_lock_irqsave(&aup->lock, flags);
-
- if (phydev->link && (aup->old_speed != phydev->speed)) {
- // speed changed
-
- switch(phydev->speed) {
- case SPEED_10:
- case SPEED_100:
- break;
- default:
- printk(KERN_WARNING
- "%s: Speed (%d) is not 10/100 ???\n",
- dev->name, phydev->speed);
- break;
- }
-
- aup->old_speed = phydev->speed;
-
- status_change = 1;
- }
-
- if (phydev->link && (aup->old_duplex != phydev->duplex)) {
- // duplex mode changed
-
- /* switching duplex mode requires to disable rx and tx! */
- hard_stop(dev);
-
- if (DUPLEX_FULL == phydev->duplex)
- aup->mac->control = ((aup->mac->control
- | MAC_FULL_DUPLEX)
- & ~MAC_DISABLE_RX_OWN);
- else
- aup->mac->control = ((aup->mac->control
- & ~MAC_FULL_DUPLEX)
- | MAC_DISABLE_RX_OWN);
- au_sync_delay(1);
-
- enable_rx_tx(dev);
- aup->old_duplex = phydev->duplex;
-
- status_change = 1;
- }
+ struct net_device *dev = dev_id;
- if(phydev->link != aup->old_link) {
- // link state changed
-
- if (phydev->link) // link went up
- netif_schedule(dev);
- else { // link went down
- aup->old_speed = 0;
- aup->old_duplex = -1;
- }
-
- aup->old_link = phydev->link;
- status_change = 1;
- }
-
- spin_unlock_irqrestore(&aup->lock, flags);
+ /* Handle RX interrupts first to minimize chance of overrun */
- if (status_change) {
- if (phydev->link)
- printk(KERN_INFO "%s: link up (%d/%s)\n",
- dev->name, phydev->speed,
- DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
- else
- printk(KERN_INFO "%s: link down\n", dev->name);
- }
+ au1000_rx(dev);
+ au1000_tx_ack(dev);
+ return IRQ_RETVAL(1);
}
static int au1000_open(struct net_device *dev)
{
int retval;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
- if (au1000_debug > 4)
- printk("%s: open: dev=%p\n", dev->name, dev);
+ netif_dbg(aup, drv, dev, "open: dev=%p\n", dev);
- if ((retval = request_irq(dev->irq, &au1000_interrupt, 0,
- dev->name, dev))) {
- printk(KERN_ERR "%s: unable to get IRQ %d\n",
- dev->name, dev->irq);
+ retval = request_irq(dev->irq, au1000_interrupt, 0,
+ dev->name, dev);
+ if (retval) {
+ netdev_err(dev, "unable to get IRQ %d\n", dev->irq);
return retval;
}
- if ((retval = au1000_init(dev))) {
- printk(KERN_ERR "%s: error in au1000_init\n", dev->name);
+ retval = au1000_init(dev);
+ if (retval) {
+ netdev_err(dev, "error in au1000_init\n");
free_irq(dev->irq, dev);
return retval;
}
netif_start_queue(dev);
- if (au1000_debug > 4)
- printk("%s: open: Initialization done.\n", dev->name);
+ netif_dbg(aup, drv, dev, "open: Initialization done.\n");
return 0;
}
static int au1000_close(struct net_device *dev)
{
unsigned long flags;
- struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *const aup = netdev_priv(dev);
- if (au1000_debug > 4)
- printk("%s: close: dev=%p\n", dev->name, dev);
+ netif_dbg(aup, drv, dev, "close: dev=%p\n", dev);
if (aup->phy_dev)
phy_stop(aup->phy_dev);
spin_lock_irqsave(&aup->lock, flags);
- reset_mac_unlocked (dev);
+ au1000_reset_mac_unlocked (dev);
/* stop the device */
netif_stop_queue(dev);
return 0;
}
-static void __exit au1000_cleanup_module(void)
+/*
+ * Au1000 transmit routine.
+ */
+static netdev_tx_t au1000_tx(struct sk_buff *skb, struct net_device *dev)
{
- int i, j;
- struct net_device *dev;
- struct au1000_private *aup;
-
- for (i = 0; i < num_ifs; i++) {
- dev = iflist[i].dev;
- if (dev) {
- aup = (struct au1000_private *) dev->priv;
- unregister_netdev(dev);
- for (j = 0; j < NUM_RX_DMA; j++)
- if (aup->rx_db_inuse[j])
- ReleaseDB(aup, aup->rx_db_inuse[j]);
- for (j = 0; j < NUM_TX_DMA; j++)
- if (aup->tx_db_inuse[j])
- ReleaseDB(aup, aup->tx_db_inuse[j]);
- dma_free_noncoherent(NULL, MAX_BUF_SIZE *
- (NUM_TX_BUFFS + NUM_RX_BUFFS),
- (void *)aup->vaddr, aup->dma_addr);
- release_mem_region(dev->base_addr, MAC_IOSIZE);
- release_mem_region(CPHYSADDR(iflist[i].macen_addr), 4);
- free_netdev(dev);
- }
- }
-}
+ struct au1000_private *aup = netdev_priv(dev);
+ struct net_device_stats *ps = &dev->stats;
+ volatile tx_dma_t *ptxd;
+ u32 buff_stat;
+ db_dest_t *pDB;
+ int i;
-static void update_tx_stats(struct net_device *dev, u32 status)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
-
- if (status & TX_FRAME_ABORTED) {
- if (!aup->phy_dev || (DUPLEX_FULL == aup->phy_dev->duplex)) {
- if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) {
- /* any other tx errors are only valid
- * in half duplex mode */
- ps->tx_errors++;
- ps->tx_aborted_errors++;
- }
- }
- else {
- ps->tx_errors++;
- ps->tx_aborted_errors++;
- if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER))
- ps->tx_carrier_errors++;
- }
- }
-}
-
-
-/*
- * Called from the interrupt service routine to acknowledge
- * the TX DONE bits. This is a must if the irq is setup as
- * edge triggered.
- */
-static void au1000_tx_ack(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- volatile tx_dma_t *ptxd;
-
- ptxd = aup->tx_dma_ring[aup->tx_tail];
-
- while (ptxd->buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status);
- ptxd->buff_stat &= ~TX_T_DONE;
- ptxd->len = 0;
- au_sync();
-
- aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1);
- ptxd = aup->tx_dma_ring[aup->tx_tail];
-
- if (aup->tx_full) {
- aup->tx_full = 0;
- netif_wake_queue(dev);
- }
- }
-}
-
-
-/*
- * Au1000 transmit routine.
- */
-static int au1000_tx(struct sk_buff *skb, struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
- volatile tx_dma_t *ptxd;
- u32 buff_stat;
- db_dest_t *pDB;
- int i;
-
- if (au1000_debug > 5)
- printk("%s: tx: aup %x len=%d, data=%p, head %d\n",
- dev->name, (unsigned)aup, skb->len,
- skb->data, aup->tx_head);
+ netif_dbg(aup, tx_queued, dev, "tx: aup %x len=%d, data=%p, head %d\n",
+ (unsigned)aup, skb->len,
+ skb->data, aup->tx_head);
ptxd = aup->tx_dma_ring[aup->tx_head];
buff_stat = ptxd->buff_stat;
/* We've wrapped around and the transmitter is still busy */
netif_stop_queue(dev);
aup->tx_full = 1;
- return 1;
- }
- else if (buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status);
+ return NETDEV_TX_BUSY;
+ } else if (buff_stat & TX_T_DONE) {
+ au1000_update_tx_stats(dev, ptxd->status);
ptxd->len = 0;
}
}
pDB = aup->tx_db_inuse[aup->tx_head];
- skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
+ skb_copy_from_linear_data(skb, (void *)pDB->vaddr, skb->len);
if (skb->len < ETH_ZLEN) {
- for (i=skb->len; i<ETH_ZLEN; i++) {
+ for (i = skb->len; i < ETH_ZLEN; i++) {
((char *)pDB->vaddr)[i] = 0;
}
ptxd->len = ETH_ZLEN;
- }
- else
+ } else
ptxd->len = skb->len;
ps->tx_packets++;
dev_kfree_skb(skb);
aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1);
dev->trans_start = jiffies;
- return 0;
-}
-
-static inline void update_rx_stats(struct net_device *dev, u32 status)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
-
- ps->rx_packets++;
- if (status & RX_MCAST_FRAME)
- ps->multicast++;
-
- if (status & RX_ERROR) {
- ps->rx_errors++;
- if (status & RX_MISSED_FRAME)
- ps->rx_missed_errors++;
- if (status & (RX_OVERLEN | RX_OVERLEN | RX_LEN_ERROR))
- ps->rx_length_errors++;
- if (status & RX_CRC_ERROR)
- ps->rx_crc_errors++;
- if (status & RX_COLL)
- ps->collisions++;
- }
- else
- ps->rx_bytes += status & RX_FRAME_LEN_MASK;
-
+ return NETDEV_TX_OK;
}
/*
- * Au1000 receive routine.
- */
-static int au1000_rx(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct sk_buff *skb;
- volatile rx_dma_t *prxd;
- u32 buff_stat, status;
- db_dest_t *pDB;
- u32 frmlen;
-
- if (au1000_debug > 5)
- printk("%s: au1000_rx head %d\n", dev->name, aup->rx_head);
-
- prxd = aup->rx_dma_ring[aup->rx_head];
- buff_stat = prxd->buff_stat;
- while (buff_stat & RX_T_DONE) {
- status = prxd->status;
- pDB = aup->rx_db_inuse[aup->rx_head];
- update_rx_stats(dev, status);
- if (!(status & RX_ERROR)) {
-
- /* good frame */
- frmlen = (status & RX_FRAME_LEN_MASK);
- frmlen -= 4; /* Remove FCS */
- skb = dev_alloc_skb(frmlen + 2);
- if (skb == NULL) {
- printk(KERN_ERR
- "%s: Memory squeeze, dropping packet.\n",
- dev->name);
- aup->stats.rx_dropped++;
- continue;
- }
- skb_reserve(skb, 2); /* 16 byte IP header align */
- skb_copy_to_linear_data(skb,
- (unsigned char *)pDB->vaddr, frmlen);
- skb_put(skb, frmlen);
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb); /* pass the packet to upper layers */
- }
- else {
- if (au1000_debug > 4) {
- if (status & RX_MISSED_FRAME)
- printk("rx miss\n");
- if (status & RX_WDOG_TIMER)
- printk("rx wdog\n");
- if (status & RX_RUNT)
- printk("rx runt\n");
- if (status & RX_OVERLEN)
- printk("rx overlen\n");
- if (status & RX_COLL)
- printk("rx coll\n");
- if (status & RX_MII_ERROR)
- printk("rx mii error\n");
- if (status & RX_CRC_ERROR)
- printk("rx crc error\n");
- if (status & RX_LEN_ERROR)
- printk("rx len error\n");
- if (status & RX_U_CNTRL_FRAME)
- printk("rx u control frame\n");
- if (status & RX_MISSED_FRAME)
- printk("rx miss\n");
- }
- }
- prxd->buff_stat = (u32)(pDB->dma_addr | RX_DMA_ENABLE);
- aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1);
- au_sync();
-
- /* next descriptor */
- prxd = aup->rx_dma_ring[aup->rx_head];
- buff_stat = prxd->buff_stat;
- dev->last_rx = jiffies;
- }
- return 0;
-}
-
-
-/*
- * Au1000 interrupt service routine.
- */
-static irqreturn_t au1000_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = (struct net_device *) dev_id;
-
- if (dev == NULL) {
- printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
- return IRQ_RETVAL(1);
- }
-
- /* Handle RX interrupts first to minimize chance of overrun */
-
- au1000_rx(dev);
- au1000_tx_ack(dev);
- return IRQ_RETVAL(1);
-}
-
-
-/*
* The Tx ring has been full longer than the watchdog timeout
* value. The transmitter must be hung?
*/
static void au1000_tx_timeout(struct net_device *dev)
{
- printk(KERN_ERR "%s: au1000_tx_timeout: dev=%p\n", dev->name, dev);
- reset_mac(dev);
+ netdev_err(dev, "au1000_tx_timeout: dev=%p\n", dev);
+ au1000_reset_mac(dev);
au1000_init(dev);
dev->trans_start = jiffies;
netif_wake_queue(dev);
}
-static void set_rx_mode(struct net_device *dev)
+static void au1000_multicast_list(struct net_device *dev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
- if (au1000_debug > 4)
- printk("%s: set_rx_mode: flags=%x\n", dev->name, dev->flags);
+ netif_dbg(aup, drv, dev, "au1000_multicast_list: flags=%x\n", dev->flags);
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
aup->mac->control |= MAC_PROMISCUOUS;
} else if ((dev->flags & IFF_ALLMULTI) ||
- dev->mc_count > MULTICAST_FILTER_LIMIT) {
+ netdev_mc_count(dev) > MULTICAST_FILTER_LIMIT) {
aup->mac->control |= MAC_PASS_ALL_MULTI;
aup->mac->control &= ~MAC_PROMISCUOUS;
- printk(KERN_INFO "%s: Pass all multicast\n", dev->name);
+ netdev_info(dev, "Pass all multicast\n");
} else {
- int i;
- struct dev_mc_list *mclist;
+ struct netdev_hw_addr *ha;
u32 mc_filter[2]; /* Multicast hash filter */
mc_filter[1] = mc_filter[0] = 0;
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
- i++, mclist = mclist->next) {
- set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26,
+ netdev_for_each_mc_addr(ha, dev)
+ set_bit(ether_crc(ETH_ALEN, ha->addr)>>26,
(long *)mc_filter);
- }
aup->mac->multi_hash_high = mc_filter[1];
aup->mac->multi_hash_low = mc_filter[0];
aup->mac->control &= ~MAC_PROMISCUOUS;
static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
- if (!netif_running(dev)) return -EINVAL;
+ if (!netif_running(dev))
+ return -EINVAL;
- if (!aup->phy_dev) return -EINVAL; // PHY not controllable
+ if (!aup->phy_dev)
+ return -EINVAL; /* PHY not controllable */
return phy_mii_ioctl(aup->phy_dev, if_mii(rq), cmd);
}
-static struct net_device_stats *au1000_get_stats(struct net_device *dev)
+static const struct net_device_ops au1000_netdev_ops = {
+ .ndo_open = au1000_open,
+ .ndo_stop = au1000_close,
+ .ndo_start_xmit = au1000_tx,
+ .ndo_set_multicast_list = au1000_multicast_list,
+ .ndo_do_ioctl = au1000_ioctl,
+ .ndo_tx_timeout = au1000_tx_timeout,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = eth_change_mtu,
+};
+
+static int __devinit au1000_probe(struct platform_device *pdev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ static unsigned version_printed;
+ struct au1000_private *aup = NULL;
+ struct au1000_eth_platform_data *pd;
+ struct net_device *dev = NULL;
+ db_dest_t *pDB, *pDBfree;
+ int irq, i, err = 0;
+ struct resource *base, *macen;
+ char ethaddr[6];
+
+ base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!base) {
+ dev_err(&pdev->dev, "failed to retrieve base register\n");
+ err = -ENODEV;
+ goto out;
+ }
+
+ macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!macen) {
+ dev_err(&pdev->dev, "failed to retrieve MAC Enable register\n");
+ err = -ENODEV;
+ goto out;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to retrieve IRQ\n");
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (!request_mem_region(base->start, resource_size(base), pdev->name)) {
+ dev_err(&pdev->dev, "failed to request memory region for base registers\n");
+ err = -ENXIO;
+ goto out;
+ }
+
+ if (!request_mem_region(macen->start, resource_size(macen), pdev->name)) {
+ dev_err(&pdev->dev, "failed to request memory region for MAC enable register\n");
+ err = -ENXIO;
+ goto err_request;
+ }
+
+ dev = alloc_etherdev(sizeof(struct au1000_private));
+ if (!dev) {
+ dev_err(&pdev->dev, "alloc_etherdev failed\n");
+ err = -ENOMEM;
+ goto err_alloc;
+ }
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ platform_set_drvdata(pdev, dev);
+ aup = netdev_priv(dev);
+
+ spin_lock_init(&aup->lock);
+ aup->msg_enable = (au1000_debug < 4 ? AU1000_DEF_MSG_ENABLE : au1000_debug);
- if (au1000_debug > 4)
- printk("%s: au1000_get_stats: dev=%p\n", dev->name, dev);
+ /* Allocate the data buffers */
+ /* Snooping works fine with eth on all au1xxx */
+ aup->vaddr = (u32)dma_alloc_noncoherent(NULL, MAX_BUF_SIZE *
+ (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ &aup->dma_addr, 0);
+ if (!aup->vaddr) {
+ dev_err(&pdev->dev, "failed to allocate data buffers\n");
+ err = -ENOMEM;
+ goto err_vaddr;
+ }
+
+ /* aup->mac is the base address of the MAC's registers */
+ aup->mac = (volatile mac_reg_t *)ioremap_nocache(base->start, resource_size(base));
+ if (!aup->mac) {
+ dev_err(&pdev->dev, "failed to ioremap MAC registers\n");
+ err = -ENXIO;
+ goto err_remap1;
+ }
- if (netif_device_present(dev)) {
- return &aup->stats;
+ /* Setup some variables for quick register address access */
+ aup->enable = (volatile u32 *)ioremap_nocache(macen->start, resource_size(macen));
+ if (!aup->enable) {
+ dev_err(&pdev->dev, "failed to ioremap MAC enable register\n");
+ err = -ENXIO;
+ goto err_remap2;
}
+ aup->mac_id = pdev->id;
+
+ if (pdev->id == 0) {
+ if (prom_get_ethernet_addr(ethaddr) == 0)
+ memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
+ else {
+ netdev_info(dev, "No MAC address found\n");
+ /* Use the hard coded MAC addresses */
+ }
+
+ au1000_setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
+ } else if (pdev->id == 1)
+ au1000_setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
+
+ /*
+ * Assign to the Ethernet ports two consecutive MAC addresses
+ * to match those that are printed on their stickers
+ */
+ memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
+ dev->dev_addr[5] += pdev->id;
+
+ *aup->enable = 0;
+ aup->mac_enabled = 0;
+
+ pd = pdev->dev.platform_data;
+ if (!pd) {
+ dev_info(&pdev->dev, "no platform_data passed, PHY search on MAC0\n");
+ aup->phy1_search_mac0 = 1;
+ } else {
+ aup->phy_static_config = pd->phy_static_config;
+ aup->phy_search_highest_addr = pd->phy_search_highest_addr;
+ aup->phy1_search_mac0 = pd->phy1_search_mac0;
+ aup->phy_addr = pd->phy_addr;
+ aup->phy_busid = pd->phy_busid;
+ aup->phy_irq = pd->phy_irq;
+ }
+
+ if (aup->phy_busid && aup->phy_busid > 0) {
+ dev_err(&pdev->dev, "MAC0-associated PHY attached 2nd MACs MII"
+ "bus not supported yet\n");
+ err = -ENODEV;
+ goto err_mdiobus_alloc;
+ }
+
+ aup->mii_bus = mdiobus_alloc();
+ if (aup->mii_bus == NULL) {
+ dev_err(&pdev->dev, "failed to allocate mdiobus structure\n");
+ err = -ENOMEM;
+ goto err_mdiobus_alloc;
+ }
+
+ aup->mii_bus->priv = dev;
+ aup->mii_bus->read = au1000_mdiobus_read;
+ aup->mii_bus->write = au1000_mdiobus_write;
+ aup->mii_bus->reset = au1000_mdiobus_reset;
+ aup->mii_bus->name = "au1000_eth_mii";
+ snprintf(aup->mii_bus->id, MII_BUS_ID_SIZE, "%x", aup->mac_id);
+ aup->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+ if (aup->mii_bus->irq == NULL)
+ goto err_out;
+
+ for (i = 0; i < PHY_MAX_ADDR; ++i)
+ aup->mii_bus->irq[i] = PHY_POLL;
+ /* if known, set corresponding PHY IRQs */
+ if (aup->phy_static_config)
+ if (aup->phy_irq && aup->phy_busid == aup->mac_id)
+ aup->mii_bus->irq[aup->phy_addr] = aup->phy_irq;
+
+ err = mdiobus_register(aup->mii_bus);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register MDIO bus\n");
+ goto err_mdiobus_reg;
+ }
+
+ if (au1000_mii_probe(dev) != 0)
+ goto err_out;
+
+ pDBfree = NULL;
+ /* setup the data buffer descriptors and attach a buffer to each one */
+ pDB = aup->db;
+ for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
+ pDB->pnext = pDBfree;
+ pDBfree = pDB;
+ pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
+ pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
+ pDB++;
+ }
+ aup->pDBfree = pDBfree;
+
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ pDB = au1000_GetFreeDB(aup);
+ if (!pDB) {
+ goto err_out;
+ }
+ aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
+ aup->rx_db_inuse[i] = pDB;
+ }
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ pDB = au1000_GetFreeDB(aup);
+ if (!pDB) {
+ goto err_out;
+ }
+ aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
+ aup->tx_dma_ring[i]->len = 0;
+ aup->tx_db_inuse[i] = pDB;
+ }
+
+ dev->base_addr = base->start;
+ dev->irq = irq;
+ dev->netdev_ops = &au1000_netdev_ops;
+ SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
+ dev->watchdog_timeo = ETH_TX_TIMEOUT;
+
+ /*
+ * The boot code uses the ethernet controller, so reset it to start
+ * fresh. au1000_init() expects that the device is in reset state.
+ */
+ au1000_reset_mac(dev);
+
+ err = register_netdev(dev);
+ if (err) {
+ netdev_err(dev, "Cannot register net device, aborting.\n");
+ goto err_out;
+ }
+
+ netdev_info(dev, "Au1xx0 Ethernet found at 0x%lx, irq %d\n",
+ (unsigned long)base->start, irq);
+ if (version_printed++ == 0)
+ printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
+
+ return 0;
+
+err_out:
+ if (aup->mii_bus != NULL)
+ mdiobus_unregister(aup->mii_bus);
+
+ /* here we should have a valid dev plus aup-> register addresses
+ * so we can reset the mac properly.*/
+ au1000_reset_mac(dev);
+
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ if (aup->rx_db_inuse[i])
+ au1000_ReleaseDB(aup, aup->rx_db_inuse[i]);
+ }
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ if (aup->tx_db_inuse[i])
+ au1000_ReleaseDB(aup, aup->tx_db_inuse[i]);
+ }
+err_mdiobus_reg:
+ mdiobus_free(aup->mii_bus);
+err_mdiobus_alloc:
+ iounmap(aup->enable);
+err_remap2:
+ iounmap(aup->mac);
+err_remap1:
+ dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ (void *)aup->vaddr, aup->dma_addr);
+err_vaddr:
+ free_netdev(dev);
+err_alloc:
+ release_mem_region(macen->start, resource_size(macen));
+err_request:
+ release_mem_region(base->start, resource_size(base));
+out:
+ return err;
+}
+
+static int __devexit au1000_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct au1000_private *aup = netdev_priv(dev);
+ int i;
+ struct resource *base, *macen;
+
+ platform_set_drvdata(pdev, NULL);
+
+ unregister_netdev(dev);
+ mdiobus_unregister(aup->mii_bus);
+ mdiobus_free(aup->mii_bus);
+
+ for (i = 0; i < NUM_RX_DMA; i++)
+ if (aup->rx_db_inuse[i])
+ au1000_ReleaseDB(aup, aup->rx_db_inuse[i]);
+
+ for (i = 0; i < NUM_TX_DMA; i++)
+ if (aup->tx_db_inuse[i])
+ au1000_ReleaseDB(aup, aup->tx_db_inuse[i]);
+
+ dma_free_noncoherent(NULL, MAX_BUF_SIZE *
+ (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ (void *)aup->vaddr, aup->dma_addr);
+
+ iounmap(aup->mac);
+ iounmap(aup->enable);
+
+ base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(base->start, resource_size(base));
+
+ macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ release_mem_region(macen->start, resource_size(macen));
+
+ free_netdev(dev);
+
return 0;
}
+static struct platform_driver au1000_eth_driver = {
+ .probe = au1000_probe,
+ .remove = __devexit_p(au1000_remove),
+ .driver = {
+ .name = "au1000-eth",
+ .owner = THIS_MODULE,
+ },
+};
+MODULE_ALIAS("platform:au1000-eth");
+
+
+static int __init au1000_init_module(void)
+{
+ return platform_driver_register(&au1000_eth_driver);
+}
+
+static void __exit au1000_exit_module(void)
+{
+ platform_driver_unregister(&au1000_eth_driver);
+}
+
module_init(au1000_init_module);
-module_exit(au1000_cleanup_module);
+module_exit(au1000_exit_module);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff