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Commit e97a6614 authored by Jeff Garzik's avatar Jeff Garzik
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Merge pobox.com:/spare/repo/netdev-2.6/r8169 

into pobox.com:/spare/repo/netdev-2.6/ALL
parents bde28a59 cb8b5d85
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Showing with 456 additions and 202 deletions
drivers/net/Kconfig
View file @ e97a6614
......@@ -2043,6 +2043,11 @@ config R8169
To compile this driver as a module, choose M here: the module
will be called r8169. This is recommended.
config R8169_NAPI
bool "Use Rx and Tx Polling (NAPI) (EXPERIMENTAL)"
depends on R8169 && EXPERIMENTAL
config SK98LIN
tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support"
depends on PCI
......
drivers/net/r8169.c
View file @ e97a6614
......@@ -7,7 +7,7 @@
Feb 4 2002 - created initially by ShuChen <shuchen@realtek.com.tw>.
May 20 2002 - Add link status force-mode and TBI mode support.
=========================================================================
1. The media can be forced in 5 modes.
1. [DEPRECATED: use ethtool instead] The media can be forced in 5 modes.
Command: 'insmod r8169 media = SET_MEDIA'
Ex: 'insmod r8169 media = 0x04' will force PHY to operate in 100Mpbs Half-duplex.
......@@ -41,6 +41,7 @@ VERSION 1.2 <2002/11/30>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/crc32.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
......@@ -64,6 +65,14 @@ VERSION 1.2 <2002/11/30>
#define dprintk(fmt, args...) do {} while (0)
#endif /* RTL8169_DEBUG */
#ifdef CONFIG_R8169_NAPI
#define rtl8169_rx_skb netif_receive_skb
#define rtl8169_rx_quota(count, quota) min(count, quota)
#else
#define rtl8169_rx_skb netif_rx
#define rtl8169_rx_quota(count, quota) count
#endif
/* media options */
#define MAX_UNITS 8
static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
......@@ -90,15 +99,16 @@ static int multicast_filter_limit = 32;
#define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */
#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
#define R8169_NAPI_WEIGHT 64
#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
#define NUM_RX_DESC 64 /* Number of Rx descriptor registers */
#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
#define RX_BUF_SIZE 1536 /* Rx Buffer size */
#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
#define RTL_MIN_IO_SIZE 0x80
#define RTL8169_TX_TIMEOUT (6*HZ)
#define RTL8169_PHY_TIMEOUT (HZ)
#define RTL8169_PHY_TIMEOUT (10*HZ)
/* write/read MMIO register */
#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
......@@ -194,7 +204,7 @@ enum RTL8169_register_content {
SWInt = 0x0100,
TxDescUnavail = 0x80,
RxFIFOOver = 0x40,
RxUnderrun = 0x20,
LinkChg = 0x20,
RxOverflow = 0x10,
TxErr = 0x08,
TxOK = 0x04,
......@@ -233,6 +243,14 @@ enum RTL8169_register_content {
TxInterFrameGapShift = 24,
TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
/* TBICSR p.28 */
TBIReset = 0x80000000,
TBILoopback = 0x40000000,
TBINwEnable = 0x20000000,
TBINwRestart = 0x10000000,
TBILinkOk = 0x02000000,
TBINwComplete = 0x01000000,
/* CPlusCmd p.31 */
RxVlan = (1 << 6),
RxChkSum = (1 << 5),
......@@ -306,10 +324,10 @@ struct RxDesc {
};
struct rtl8169_private {
void *mmio_addr; /* memory map physical address */
void *mmio_addr; /* memory map physical address */
struct pci_dev *pci_dev; /* Index of PCI device */
struct net_device_stats stats; /* statistics of net device */
spinlock_t lock; /* spin lock flag */
spinlock_t lock; /* spin lock flag */
int chipset;
int mac_version;
int phy_version;
......@@ -317,15 +335,23 @@ struct rtl8169_private {
u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
u32 dirty_rx;
u32 dirty_tx;
struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
dma_addr_t TxPhyAddr;
dma_addr_t RxPhyAddr;
struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
struct sk_buff *Tx_skbuff[NUM_TX_DESC]; /* Index of Transmit data buffer */
struct sk_buff *Tx_skbuff[NUM_TX_DESC]; /* Tx data buffers */
struct timer_list timer;
unsigned long phy_link_down_cnt;
u16 cp_cmd;
u16 intr_mask;
int phy_auto_nego_reg;
int phy_1000_ctrl_reg;
int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
void (*get_settings)(struct net_device *, struct ethtool_cmd *);
void (*phy_reset_enable)(void *);
unsigned int (*phy_reset_pending)(void *);
unsigned int (*link_ok)(void *);
};
MODULE_AUTHOR("Realtek");
......@@ -344,9 +370,14 @@ static int rtl8169_close(struct net_device *dev);
static void rtl8169_set_rx_mode(struct net_device *dev);
static void rtl8169_tx_timeout(struct net_device *dev);
static struct net_device_stats *rtl8169_get_stats(struct net_device *netdev);
#ifdef CONFIG_R8169_NAPI
static int rtl8169_poll(struct net_device *dev, int *budget);
#endif
static const u16 rtl8169_intr_mask =
RxUnderrun | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK;
LinkChg | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK;
static const u16 rtl8169_napi_event =
RxOK | RxOverflow | RxFIFOOver | TxOK | TxErr;
static const unsigned int rtl8169_rx_config =
(RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
......@@ -364,11 +395,9 @@ static void mdio_write(void *ioaddr, int RegAddr, int value)
for (i = 2000; i > 0; i--) {
// Check if the RTL8169 has completed writing to the specified MII register
if (!(RTL_R32(PHYAR) & 0x80000000)) {
if (!(RTL_R32(PHYAR) & 0x80000000))
break;
} else {
udelay(100);
}
udelay(100);
}
}
......@@ -390,18 +419,264 @@ static int mdio_read(void *ioaddr, int RegAddr)
return value;
}
static unsigned int rtl8169_tbi_reset_pending(void *ioaddr)
{
return RTL_R32(TBICSR) & TBIReset;
}
static unsigned int rtl8169_xmii_reset_pending(void *ioaddr)
{
return mdio_read(ioaddr, 0) & 0x8000;
}
static unsigned int rtl8169_tbi_link_ok(void *ioaddr)
{
return RTL_R32(TBICSR) & TBILinkOk;
}
static unsigned int rtl8169_xmii_link_ok(void *ioaddr)
{
return RTL_R8(PHYstatus) & LinkStatus;
}
static void rtl8169_tbi_reset_enable(void *ioaddr)
{
RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
}
static void rtl8169_xmii_reset_enable(void *ioaddr)
{
unsigned int val;
val = (mdio_read(ioaddr, PHY_CTRL_REG) | 0x8000) & 0xffff;
mdio_write(ioaddr, PHY_CTRL_REG, val);
}
static void rtl8169_check_link_status(struct net_device *dev,
struct rtl8169_private *tp, void *ioaddr)
{
unsigned long flags;
spin_lock_irqsave(&tp->lock, flags);
if (tp->link_ok(ioaddr)) {
netif_carrier_on(dev);
printk(KERN_INFO PFX "%s: link up\n", dev->name);
} else
netif_carrier_off(dev);
spin_unlock_irqrestore(&tp->lock, flags);
}
static void rtl8169_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex)
{
struct {
u16 speed;
u8 duplex;
u8 autoneg;
u8 media;
} link_settings[] = {
{ SPEED_10, DUPLEX_HALF, AUTONEG_DISABLE, _10_Half },
{ SPEED_10, DUPLEX_FULL, AUTONEG_DISABLE, _10_Full },
{ SPEED_100, DUPLEX_HALF, AUTONEG_DISABLE, _100_Half },
{ SPEED_100, DUPLEX_FULL, AUTONEG_DISABLE, _100_Full },
{ SPEED_1000, DUPLEX_FULL, AUTONEG_DISABLE, _1000_Full },
/* Make TBI happy */
{ SPEED_1000, DUPLEX_FULL, AUTONEG_ENABLE, 0xff }
}, *p;
unsigned char option;
option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff;
if ((option != 0xff) && !idx)
printk(KERN_WARNING PFX "media option is deprecated.\n");
for (p = link_settings; p->media != 0xff; p++) {
if (p->media == option)
break;
}
*autoneg = p->autoneg;
*speed = p->speed;
*duplex = p->duplex;
}
static void rtl8169_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
strcpy(info->driver, RTL8169_DRIVER_NAME);
strcpy(info->version, RTL8169_VERSION );
strcpy(info->bus_info, pci_name(tp->pci_dev));
}
static int rtl8169_set_speed_tbi(struct net_device *dev,
u8 autoneg, u16 speed, u8 duplex)
{
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int ret = 0;
u32 reg;
reg = RTL_R32(TBICSR);
if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
(duplex == DUPLEX_FULL)) {
RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
} else if (autoneg == AUTONEG_ENABLE)
RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
else {
printk(KERN_WARNING PFX
"%s: incorrect speed setting refused in TBI mode\n",
dev->name);
ret = -EOPNOTSUPP;
}
return ret;
}
static int rtl8169_set_speed_xmii(struct net_device *dev,
u8 autoneg, u16 speed, u8 duplex)
{
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int auto_nego, giga_ctrl;
auto_nego = mdio_read(ioaddr, PHY_AUTO_NEGO_REG);
auto_nego &= ~(PHY_Cap_10_Half | PHY_Cap_10_Full |
PHY_Cap_100_Half | PHY_Cap_100_Full);
giga_ctrl = mdio_read(ioaddr, PHY_1000_CTRL_REG);
giga_ctrl &= ~(PHY_Cap_1000_Full | PHY_Cap_Null);
if (autoneg == AUTONEG_ENABLE) {
auto_nego |= (PHY_Cap_10_Half | PHY_Cap_10_Full |
PHY_Cap_100_Half | PHY_Cap_100_Full);
giga_ctrl |= PHY_Cap_1000_Full;
} else {
if (speed == SPEED_10)
auto_nego |= PHY_Cap_10_Half | PHY_Cap_10_Full;
else if (speed == SPEED_100)
auto_nego |= PHY_Cap_100_Half | PHY_Cap_100_Full;
else if (speed == SPEED_1000)
giga_ctrl |= PHY_Cap_1000_Full;
if (duplex == DUPLEX_HALF)
auto_nego &= ~(PHY_Cap_10_Full | PHY_Cap_100_Full);
}
tp->phy_auto_nego_reg = auto_nego;
tp->phy_1000_ctrl_reg = giga_ctrl;
mdio_write(ioaddr, PHY_AUTO_NEGO_REG, auto_nego);
mdio_write(ioaddr, PHY_1000_CTRL_REG, giga_ctrl);
mdio_write(ioaddr, PHY_CTRL_REG, PHY_Enable_Auto_Nego |
PHY_Restart_Auto_Nego);
return 0;
}
static int rtl8169_set_speed(struct net_device *dev,
u8 autoneg, u16 speed, u8 duplex)
{
struct rtl8169_private *tp = netdev_priv(dev);
int ret;
ret = tp->set_speed(dev, autoneg, speed, duplex);
if (netif_running(dev) && (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full))
mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
return ret;
}
static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct rtl8169_private *tp = netdev_priv(dev);
unsigned long flags;
int ret;
spin_lock_irqsave(&tp->lock, flags);
ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
spin_unlock_irqrestore(&tp->lock, flags);
return ret;
}
static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u32 status;
cmd->supported =
SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
cmd->port = PORT_FIBRE;
cmd->transceiver = XCVR_INTERNAL;
status = RTL_R32(TBICSR);
cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
cmd->autoneg = !!(status & TBINwEnable);
cmd->speed = SPEED_1000;
cmd->duplex = DUPLEX_FULL; /* Always set */
}
static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u8 status;
cmd->supported = SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full |
SUPPORTED_Autoneg |
SUPPORTED_TP;
cmd->autoneg = 1;
cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
if (tp->phy_auto_nego_reg & PHY_Cap_10_Half)
cmd->advertising |= ADVERTISED_10baseT_Half;
if (tp->phy_auto_nego_reg & PHY_Cap_10_Full)
cmd->advertising |= ADVERTISED_10baseT_Full;
if (tp->phy_auto_nego_reg & PHY_Cap_100_Half)
cmd->advertising |= ADVERTISED_100baseT_Half;
if (tp->phy_auto_nego_reg & PHY_Cap_100_Full)
cmd->advertising |= ADVERTISED_100baseT_Full;
if (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)
cmd->advertising |= ADVERTISED_1000baseT_Full;
status = RTL_R8(PHYstatus);
if (status & _1000bpsF)
cmd->speed = SPEED_1000;
else if (status & _100bps)
cmd->speed = SPEED_100;
else if (status & _10bps)
cmd->speed = SPEED_10;
cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ?
DUPLEX_FULL : DUPLEX_HALF;
}
static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct rtl8169_private *tp = netdev_priv(dev);
unsigned long flags;
spin_lock_irqsave(&tp->lock, flags);
tp->get_settings(dev, cmd);
spin_unlock_irqrestore(&tp->lock, flags);
return 0;
}
static struct ethtool_ops rtl8169_ethtool_ops = {
.get_drvinfo = rtl8169_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_settings = rtl8169_get_settings,
.set_settings = rtl8169_set_settings,
};
static void rtl8169_write_gmii_reg_bit(void *ioaddr, int reg, int bitnum,
......@@ -500,7 +775,7 @@ static void rtl8169_print_phy_version(struct rtl8169_private *tp)
static void rtl8169_hw_phy_config(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
struct {
u16 regs[5]; /* Beware of bit-sign propagation */
......@@ -566,61 +841,47 @@ static void rtl8169_hw_phy_config(struct net_device *dev)
mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0
}
static void rtl8169_hw_phy_reset(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
void *ioaddr = tp->mmio_addr;
int i, val;
printk(KERN_WARNING PFX "%s: Reset RTL8169s PHY\n", dev->name);
val = (mdio_read(ioaddr, 0) | 0x8000) & 0xffff;
mdio_write(ioaddr, 0, val);
for (i = 50; i >= 0; i--) {
if (!(mdio_read(ioaddr, 0) & 0x8000))
break;
udelay(100); /* Gross */
}
if (i < 0) {
printk(KERN_WARNING PFX "%s: no PHY Reset ack. Giving up.\n",
dev->name);
}
}
static void rtl8169_phy_timer(unsigned long __opaque)
{
struct net_device *dev = (struct net_device *)__opaque;
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
struct timer_list *timer = &tp->timer;
void *ioaddr = tp->mmio_addr;
unsigned long timeout = RTL8169_PHY_TIMEOUT;
assert(tp->mac_version > RTL_GIGA_MAC_VER_B);
assert(tp->phy_version < RTL_GIGA_PHY_VER_G);
if (RTL_R8(PHYstatus) & LinkStatus)
tp->phy_link_down_cnt = 0;
else {
tp->phy_link_down_cnt++;
if (tp->phy_link_down_cnt >= 12) {
int reg;
if (!(tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full))
return;
// If link on 1000, perform phy reset.
reg = mdio_read(ioaddr, PHY_1000_CTRL_REG);
if (reg & PHY_Cap_1000_Full)
rtl8169_hw_phy_reset(dev);
spin_lock_irq(&tp->lock);
tp->phy_link_down_cnt = 0;
}
if (tp->phy_reset_pending(ioaddr)) {
/*
* A busy loop could burn quite a few cycles on nowadays CPU.
* Let's delay the execution of the timer for a few ticks.
*/
timeout = HZ/10;
goto out_mod_timer;
}
mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
if (tp->link_ok(ioaddr))
goto out_unlock;
printk(KERN_WARNING PFX "%s: PHY reset until link up\n", dev->name);
tp->phy_reset_enable(ioaddr);
out_mod_timer:
mod_timer(timer, jiffies + timeout);
out_unlock:
spin_unlock_irq(&tp->lock);
}
static inline void rtl8169_delete_timer(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
struct timer_list *timer = &tp->timer;
if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) ||
......@@ -628,21 +889,17 @@ static inline void rtl8169_delete_timer(struct net_device *dev)
return;
del_timer_sync(timer);
tp->phy_link_down_cnt = 0;
}
static inline void rtl8169_request_timer(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
struct timer_list *timer = &tp->timer;
if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) ||
(tp->phy_version >= RTL_GIGA_PHY_VER_G))
return;
tp->phy_link_down_cnt = 0;
init_timer(timer);
timer->expires = jiffies + RTL8169_PHY_TIMEOUT;
timer->data = (unsigned long)(dev);
......@@ -681,7 +938,7 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out,
// enable device (incl. PCI PM wakeup and hotplug setup)
rc = pci_enable_device(pdev);
if (rc) {
printk(KERN_ERR PFX "%s: unable to enable device\n", pdev->slot_name);
printk(KERN_ERR PFX "%s: enable failure\n", pdev->slot_name);
goto err_out;
}
......@@ -693,7 +950,8 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out,
pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command);
acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK;
} else {
printk(KERN_ERR PFX "Cannot find PowerManagement capability, aborting.\n");
printk(KERN_ERR PFX
"Cannot find PowerManagement capability, aborting.\n");
goto err_out_free_res;
}
......@@ -718,7 +976,8 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out,
rc = pci_request_regions(pdev, MODULENAME);
if (rc) {
printk(KERN_ERR PFX "%s: Could not request regions.\n", pdev->slot_name);
printk(KERN_ERR PFX "%s: could not request regions.\n",
pdev->slot_name);
goto err_out_disable;
}
......@@ -800,8 +1059,9 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
void *ioaddr = NULL;
static int board_idx = -1;
static int printed_version = 0;
u8 autoneg, duplex;
u16 speed;
int i, rc;
int option = -1, Cap10_100 = 0, Cap1000 = 0;
assert(pdev != NULL);
assert(ent != NULL);
......@@ -822,6 +1082,22 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
assert(dev != NULL);
assert(tp != NULL);
if (RTL_R8(PHYstatus) & TBI_Enable) {
tp->set_speed = rtl8169_set_speed_tbi;
tp->get_settings = rtl8169_gset_tbi;
tp->phy_reset_enable = rtl8169_tbi_reset_enable;
tp->phy_reset_pending = rtl8169_tbi_reset_pending;
tp->link_ok = rtl8169_tbi_link_ok;
tp->phy_1000_ctrl_reg = PHY_Cap_1000_Full; /* Implied by TBI */
} else {
tp->set_speed = rtl8169_set_speed_xmii;
tp->get_settings = rtl8169_gset_xmii;
tp->phy_reset_enable = rtl8169_xmii_reset_enable;
tp->phy_reset_pending = rtl8169_xmii_reset_pending;
tp->link_ok = rtl8169_xmii_link_ok;
}
// Get MAC address. FIXME: read EEPROM
for (i = 0; i < MAC_ADDR_LEN; i++)
dev->dev_addr[i] = RTL_R8(MAC0 + i);
......@@ -836,9 +1112,12 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
dev->irq = pdev->irq;
dev->base_addr = (unsigned long) ioaddr;
// dev->do_ioctl = mii_ioctl;
tp = dev->priv; // private data //
#ifdef CONFIG_R8169_NAPI
dev->poll = rtl8169_poll;
dev->weight = R8169_NAPI_WEIGHT;
printk(KERN_INFO PFX "NAPI enabled\n");
#endif
tp->intr_mask = 0xffff;
tp->pci_dev = pdev;
tp->mmio_addr = ioaddr;
......@@ -885,95 +1164,12 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
}
// if TBI is not endbled
if (!(RTL_R8(PHYstatus) & TBI_Enable)) {
int val = mdio_read(ioaddr, PHY_AUTO_NEGO_REG);
option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
// Force RTL8169 in 10/100/1000 Full/Half mode.
if (option > 0) {
printk(KERN_INFO "%s: Force-mode Enabled.\n",
dev->name);
Cap10_100 = 0, Cap1000 = 0;
switch (option) {
case _10_Half:
Cap10_100 = PHY_Cap_10_Half_Or_Less;
Cap1000 = PHY_Cap_Null;
break;
case _10_Full:
Cap10_100 = PHY_Cap_10_Full_Or_Less;
Cap1000 = PHY_Cap_Null;
break;
case _100_Half:
Cap10_100 = PHY_Cap_100_Half_Or_Less;
Cap1000 = PHY_Cap_Null;
break;
case _100_Full:
Cap10_100 = PHY_Cap_100_Full_Or_Less;
Cap1000 = PHY_Cap_Null;
break;
case _1000_Full:
Cap10_100 = PHY_Cap_100_Full_Or_Less;
Cap1000 = PHY_Cap_1000_Full;
break;
default:
break;
}
mdio_write(ioaddr, PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); //leave PHY_AUTO_NEGO_REG bit4:0 unchanged
mdio_write(ioaddr, PHY_1000_CTRL_REG, Cap1000);
} else {
printk(KERN_INFO "%s: Auto-negotiation Enabled.\n",
dev->name);
// enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged
mdio_write(ioaddr, PHY_AUTO_NEGO_REG,
PHY_Cap_100_Full_Or_Less | (val & 0x1f));
rtl8169_link_option(board_idx, &autoneg, &speed, &duplex);
// enable 1000 Full Mode
mdio_write(ioaddr, PHY_1000_CTRL_REG,
PHY_Cap_1000_Full);
}
// Enable auto-negotiation and restart auto-nigotiation
mdio_write(ioaddr, PHY_CTRL_REG,
PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego);
udelay(100);
// wait for auto-negotiation process
for (i = 10000; i > 0; i--) {
//check if auto-negotiation complete
if (mdio_read(ioaddr, PHY_STAT_REG) &
PHY_Auto_Neco_Comp) {
udelay(100);
option = RTL_R8(PHYstatus);
if (option & _1000bpsF) {
printk(KERN_INFO
"%s: 1000Mbps Full-duplex operation.\n",
dev->name);
} else {
printk(KERN_INFO
"%s: %sMbps %s-duplex operation.\n",
dev->name,
(option & _100bps) ? "100" :
"10",
(option & FullDup) ? "Full" :
"Half");
}
break;
} else {
udelay(100);
}
} // end for-loop to wait for auto-negotiation process
} else {
udelay(100);
printk(KERN_INFO
"%s: 1000Mbps Full-duplex operation, TBI Link %s!\n",
dev->name,
(RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed");
}
rtl8169_set_speed(dev, autoneg, speed, duplex);
if (RTL_R8(PHYstatus) & TBI_Enable)
printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
return 0;
}
......@@ -982,7 +1178,7 @@ static void __devexit
rtl8169_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
assert(dev != NULL);
assert(tp != NULL);
......@@ -1001,7 +1197,7 @@ rtl8169_remove_one(struct pci_dev *pdev)
static int rtl8169_suspend(struct pci_dev *pdev, u32 state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
unsigned long flags;
......@@ -1042,7 +1238,7 @@ static int rtl8169_resume(struct pci_dev *pdev)
static int
rtl8169_open(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
struct pci_dev *pdev = tp->pci_dev;
int retval;
......@@ -1074,6 +1270,8 @@ rtl8169_open(struct net_device *dev)
rtl8169_hw_start(dev);
rtl8169_request_timer(dev);
rtl8169_check_link_status(dev, tp, tp->mmio_addr);
out:
return retval;
......@@ -1091,7 +1289,7 @@ rtl8169_open(struct net_device *dev)
static void
rtl8169_hw_start(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u32 i;
......@@ -1102,8 +1300,7 @@ rtl8169_hw_start(struct net_device *dev)
for (i = 1000; i > 0; i--) {
if ((RTL_R8(ChipCmd) & CmdReset) == 0)
break;
else
udelay(10);
udelay(10);
}
RTL_W8(Cfg9346, Cfg9346_Unlock);
......@@ -1114,8 +1311,8 @@ rtl8169_hw_start(struct net_device *dev)
RTL_W16(RxMaxSize, RxPacketMaxSize);
// Set Rx Config register
i = rtl8169_rx_config | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].
RxConfigMask);
i = rtl8169_rx_config |
(RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
RTL_W32(RxConfig, i);
/* Set DMA burst size and Interframe Gap Time */
......@@ -1126,7 +1323,8 @@ rtl8169_hw_start(struct net_device *dev)
RTL_W16(CPlusCmd, tp->cp_cmd);
if (tp->mac_version == RTL_GIGA_MAC_VER_D) {
dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0: bit-3 and bit-14 MUST be 1\n");
dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. "
"Bit-3 and bit-14 MUST be 1\n");
tp->cp_cmd |= (1 << 14) | PCIMulRW;
RTL_W16(CPlusCmd, tp->cp_cmd);
}
......@@ -1151,7 +1349,6 @@ rtl8169_hw_start(struct net_device *dev)
RTL_W16(IntrMask, rtl8169_intr_mask);
netif_start_queue(dev);
}
static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
......@@ -1248,7 +1445,7 @@ static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
static int rtl8169_init_ring(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
tp->cur_rx = tp->dirty_rx = 0;
tp->cur_tx = tp->dirty_tx = 0;
......@@ -1302,10 +1499,11 @@ rtl8169_tx_clear(struct rtl8169_private *tp)
static void
rtl8169_tx_timeout(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u8 tmp8;
printk(KERN_INFO "%s: TX Timeout\n", dev->name);
/* disable Tx, if not already */
tmp8 = RTL_R8(ChipCmd);
if (tmp8 & CmdTxEnb)
......@@ -1328,9 +1526,9 @@ rtl8169_tx_timeout(struct net_device *dev)
static int
rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int entry = tp->cur_tx % NUM_TX_DESC;
unsigned int entry = tp->cur_tx % NUM_TX_DESC;
u32 len = skb->len;
if (unlikely(skb->len < ETH_ZLEN)) {
......@@ -1340,10 +1538,9 @@ rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
len = ETH_ZLEN;
}
spin_lock_irq(&tp->lock);
if (!(le32_to_cpu(tp->TxDescArray[entry].status) & OWNbit)) {
dma_addr_t mapping;
u32 status;
mapping = pci_map_single(tp->pci_dev, skb->data, len,
PCI_DMA_TODEVICE);
......@@ -1351,24 +1548,30 @@ rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
tp->Tx_skbuff[entry] = skb;
tp->TxDescArray[entry].addr = cpu_to_le64(mapping);
tp->TxDescArray[entry].status = cpu_to_le32(OWNbit | FSbit |
LSbit | len | (EORbit * !((entry + 1) % NUM_TX_DESC)));
/* anti gcc 2.95.3 bugware */
status = OWNbit | FSbit | LSbit | len |
(EORbit * !((entry + 1) % NUM_TX_DESC));
tp->TxDescArray[entry].status = cpu_to_le32(status);
RTL_W8(TxPoll, 0x40); //set polling bit
dev->trans_start = jiffies;
tp->cur_tx++;
smp_wmb();
} else
goto err_drop;
if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) {
u32 dirty = tp->dirty_tx;
netif_stop_queue(dev);
smp_rmb();
if (dirty != tp->dirty_tx)
netif_wake_queue(dev);
}
out:
spin_unlock_irq(&tp->lock);
out:
return 0;
err_drop:
......@@ -1382,17 +1585,18 @@ static void
rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
void *ioaddr)
{
unsigned long dirty_tx, tx_left;
unsigned int dirty_tx, tx_left;
assert(dev != NULL);
assert(tp != NULL);
assert(ioaddr != NULL);
dirty_tx = tp->dirty_tx;
smp_rmb();
tx_left = tp->cur_tx - dirty_tx;
while (tx_left > 0) {
int entry = dirty_tx % NUM_TX_DESC;
unsigned int entry = dirty_tx % NUM_TX_DESC;
struct sk_buff *skb = tp->Tx_skbuff[entry];
u32 status;
......@@ -1415,6 +1619,7 @@ rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
if (tp->dirty_tx != dirty_tx) {
tp->dirty_tx = dirty_tx;
smp_wmb();
if (netif_queue_stopped(dev))
netif_wake_queue(dev);
}
......@@ -1442,11 +1647,11 @@ static inline int rtl8169_try_rx_copy(struct sk_buff **sk_buff, int pkt_size,
return ret;
}
static void
static int
rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
void *ioaddr)
{
unsigned long cur_rx, rx_left;
unsigned int cur_rx, rx_left, count;
int delta;
assert(dev != NULL);
......@@ -1455,9 +1660,10 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
cur_rx = tp->cur_rx;
rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota);
while (rx_left > 0) {
int entry = cur_rx % NUM_RX_DESC;
unsigned int entry = cur_rx % NUM_RX_DESC;
u32 status;
rmb();
......@@ -1494,7 +1700,7 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
skb_put(skb, pkt_size);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
rtl8169_rx_skb(skb);
dev->last_rx = jiffies;
tp->stats.rx_bytes += pkt_size;
......@@ -1505,13 +1711,15 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
rx_left--;
}
count = cur_rx - tp->cur_rx;
tp->cur_rx = cur_rx;
delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
if (delta > 0)
tp->dirty_rx += delta;
else if (delta < 0)
if (delta < 0) {
printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
delta = 0;
}
tp->dirty_rx += delta;
/*
* FIXME: until there is periodic timer to try and refill the ring,
......@@ -1522,6 +1730,8 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
*/
if (tp->dirty_rx + NUM_RX_DESC == tp->cur_rx)
printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
return count;
}
/* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */
......@@ -1529,7 +1739,7 @@ static irqreturn_t
rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
{
struct net_device *dev = (struct net_device *) dev_instance;
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
int boguscnt = max_interrupt_work;
void *ioaddr = tp->mmio_addr;
int status = 0;
......@@ -1543,26 +1753,37 @@ rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
break;
handled = 1;
/*
if (status & RxUnderrun)
link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
*/
status &= tp->intr_mask;
RTL_W16(IntrStatus,
(status & RxFIFOOver) ? (status | RxOverflow) : status);
if (!(status & rtl8169_intr_mask))
break;
if (status & LinkChg)
rtl8169_check_link_status(dev, tp, ioaddr);
#ifdef CONFIG_R8169_NAPI
RTL_W16(IntrMask, rtl8169_intr_mask & ~rtl8169_napi_event);
tp->intr_mask = ~rtl8169_napi_event;
if (likely(netif_rx_schedule_prep(dev)))
__netif_rx_schedule(dev);
else {
printk(KERN_INFO "%s: interrupt %x taken in poll\n",
dev->name, status);
}
break;
#else
// Rx interrupt
if (status & (RxOK | RxUnderrun | RxOverflow | RxFIFOOver)) {
if (status & (RxOK | RxOverflow | RxFIFOOver)) {
rtl8169_rx_interrupt(dev, tp, ioaddr);
}
// Tx interrupt
if (status & (TxOK | TxErr)) {
spin_lock(&tp->lock);
if (status & (TxOK | TxErr))
rtl8169_tx_interrupt(dev, tp, ioaddr);
spin_unlock(&tp->lock);
}
#endif
boguscnt--;
} while (boguscnt > 0);
......@@ -1576,10 +1797,40 @@ rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
return IRQ_RETVAL(handled);
}
#ifdef CONFIG_R8169_NAPI
static int rtl8169_poll(struct net_device *dev, int *budget)
{
unsigned int work_done, work_to_do = min(*budget, dev->quota);
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
work_done = rtl8169_rx_interrupt(dev, tp, ioaddr);
rtl8169_tx_interrupt(dev, tp, ioaddr);
*budget -= work_done;
dev->quota -= work_done;
if ((work_done < work_to_do) || !netif_running(dev)) {
netif_rx_complete(dev);
tp->intr_mask = 0xffff;
/*
* 20040426: the barrier is not strictly required but the
* behavior of the irq handler could be less predictable
* without it. Btw, the lack of flush for the posted pci
* write is safe - FR
*/
smp_wmb();
RTL_W16(IntrMask, rtl8169_intr_mask);
}
return (work_done >= work_to_do);
}
#endif
static int
rtl8169_close(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
struct pci_dev *pdev = tp->pci_dev;
void *ioaddr = tp->mmio_addr;
......@@ -1621,7 +1872,7 @@ rtl8169_close(struct net_device *dev)
static void
rtl8169_set_rx_mode(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
unsigned long flags;
u32 mc_filter[2]; /* Multicast hash filter */
......@@ -1655,10 +1906,8 @@ rtl8169_set_rx_mode(struct net_device *dev)
spin_lock_irqsave(&tp->lock, flags);
tmp =
rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
rtl_chip_info[tp->chipset].
RxConfigMask);
tmp = rtl8169_rx_config | rx_mode |
(RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
RTL_W32(RxConfig, tmp);
RTL_W32(MAR0 + 0, mc_filter[0]);
......@@ -1675,7 +1924,7 @@ rtl8169_set_rx_mode(struct net_device *dev)
*/
static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
{
struct rtl8169_private *tp = dev->priv;
struct rtl8169_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
unsigned long flags;
......
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