*/
#define DRV_NAME "8139too"
-#define DRV_VERSION "0.9.27"
+#define DRV_VERSION "0.9.28"
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
static int debug = -1;
/*
- * Receive ring size
+ * Receive ring size
* Warning: 64K ring has hardware issues and may lock up.
*/
#if defined(CONFIG_SH_DREAMCAST)
/* indexed by board_t, above */
-static struct {
+static const struct {
const char *name;
u32 hw_flags;
} board_info[] __devinitdata = {
{0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
{0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
{0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
#ifdef CONFIG_SH_SECUREEDGE5410
/* Bogus 8139 silicon reports 8129 without external PROM :-( */
#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
/* directly indexed by chip_t, above */
-const static struct {
+static const struct {
const char *name;
u32 version; /* from RTL8139C/RTL8139D docs */
u32 flags;
dma_addr_t tx_bufs_dma;
signed char phys[4]; /* MII device addresses. */
char twistie, twist_row, twist_col; /* Twister tune state. */
- unsigned int default_port:4; /* Last dev->if_port value. */
+ unsigned int watchdog_fired : 1;
+ unsigned int default_port : 4; /* Last dev->if_port value. */
+ unsigned int have_thread : 1;
spinlock_t lock;
spinlock_t rx_lock;
chip_t chipset;
u32 rx_config;
struct rtl_extra_stats xstats;
- struct work_struct thread;
- long time_to_die; /* -1 no thr, 0 thr active, 1 thr cancel */
+ struct delayed_work thread;
struct mii_if_info mii;
unsigned int regs_len;
#ifdef CONFIG_NET_POLL_CONTROLLER
static void rtl8139_poll_controller(struct net_device *dev);
#endif
-static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs);
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
static int rtl8139_close (struct net_device *dev);
static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
static void rtl8139_set_rx_mode (struct net_device *dev);
static void __set_rx_mode (struct net_device *dev);
static void rtl8139_hw_start (struct net_device *dev);
-static void rtl8139_thread (void *_data);
-static struct ethtool_ops rtl8139_ethtool_ops;
+static void rtl8139_thread (struct work_struct *work);
+static void rtl8139_tx_timeout_task(struct work_struct *work);
+static const struct ethtool_ops rtl8139_ethtool_ops;
/* write MMIO register, with flush */
/* Flush avoids rtl8139 bug w/ posted MMIO writes */
/* dev and priv zeroed in alloc_etherdev */
dev = alloc_etherdev (sizeof (*tp));
if (dev == NULL) {
- printk (KERN_ERR PFX "%s: Unable to alloc new net device\n", pci_name(pdev));
+ dev_err(&pdev->dev, "Unable to alloc new net device\n");
return -ENOMEM;
}
SET_MODULE_OWNER(dev);
#ifdef USE_IO_OPS
/* make sure PCI base addr 0 is PIO */
if (!(pio_flags & IORESOURCE_IO)) {
- printk (KERN_ERR PFX "%s: region #0 not a PIO resource, aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
rc = -ENODEV;
goto err_out;
}
/* check for weird/broken PCI region reporting */
if (pio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI I/O region size(s), aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n");
rc = -ENODEV;
goto err_out;
}
#else
/* make sure PCI base addr 1 is MMIO */
if (!(mmio_flags & IORESOURCE_MEM)) {
- printk (KERN_ERR PFX "%s: region #1 not an MMIO resource, aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
rc = -ENODEV;
goto err_out;
}
if (mmio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI mem region size(s), aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n");
rc = -ENODEV;
goto err_out;
}
#endif
- rc = pci_request_regions (pdev, "8139too");
+ rc = pci_request_regions (pdev, DRV_NAME);
if (rc)
goto err_out;
disable_dev_on_err = 1;
#ifdef USE_IO_OPS
ioaddr = ioport_map(pio_start, pio_len);
if (!ioaddr) {
- printk (KERN_ERR PFX "%s: cannot map PIO, aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "cannot map PIO, aborting\n");
rc = -EIO;
goto err_out;
}
/* ioremap MMIO region */
ioaddr = pci_iomap(pdev, 1, 0);
if (ioaddr == NULL) {
- printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pci_name(pdev));
+ dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
rc = -EIO;
goto err_out;
}
/* check for missing/broken hardware */
if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
- printk (KERN_ERR PFX "%s: Chip not responding, ignoring board\n",
- pci_name(pdev));
+ dev_err(&pdev->dev, "Chip not responding, ignoring board\n");
rc = -EIO;
goto err_out;
}
}
/* if unknown chip, assume array element #0, original RTL-8139 in this case */
- printk (KERN_DEBUG PFX "%s: unknown chip version, assuming RTL-8139\n",
- pci_name(pdev));
- printk (KERN_DEBUG PFX "%s: TxConfig = 0x%lx\n", pci_name(pdev), RTL_R32 (TxConfig));
+ dev_printk (KERN_DEBUG, &pdev->dev,
+ "unknown chip version, assuming RTL-8139\n");
+ dev_printk (KERN_DEBUG, &pdev->dev,
+ "TxConfig = 0x%lx\n", RTL_R32 (TxConfig));
tp->chipset = 0;
match:
if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) {
- printk(KERN_INFO PFX "pci dev %s (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
- pci_name(pdev), pdev->vendor, pdev->device, pci_rev);
- printk(KERN_INFO PFX "Use the \"8139cp\" driver for improved performance and stability.\n");
+ dev_info(&pdev->dev,
+ "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
+ pdev->vendor, pdev->device, pci_rev);
+ dev_info(&pdev->dev,
+ "Use the \"8139cp\" driver for improved performance and stability.\n");
}
i = rtl8139_init_board (pdev, &dev);
(debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1));
spin_lock_init (&tp->lock);
spin_lock_init (&tp->rx_lock);
- INIT_WORK(&tp->thread, rtl8139_thread, dev);
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
tp->mii.dev = dev;
tp->mii.mdio_read = mdio_read;
tp->mii.mdio_write = mdio_write;
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
*/
-#define eeprom_delay() RTL_R32(Cfg9346)
+#define eeprom_delay() (void)RTL_R32(Cfg9346)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_WRITE_CMD (5)
#define mdio_delay() RTL_R8(Config4)
-static char mii_2_8139_map[8] = {
+static const char mii_2_8139_map[8] = {
BasicModeCtrl,
BasicModeStatus,
0,
int retval;
void __iomem *ioaddr = tp->mmio_addr;
- retval = request_irq (dev->irq, rtl8139_interrupt, SA_SHIRQ, dev->name, dev);
+ retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
if (retval)
return retval;
netif_start_queue (dev);
if (netif_msg_ifup(tp))
- printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#lx IRQ %d"
- " GP Pins %2.2x %s-duplex.\n",
- dev->name, pci_resource_start (tp->pci_dev, 1),
+ printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d"
+ " GP Pins %2.2x %s-duplex.\n", dev->name,
+ (unsigned long long)pci_resource_start (tp->pci_dev, 1),
dev->irq, RTL_R8 (MediaStatus),
tp->mii.full_duplex ? "full" : "half");
RTL_R8 (Config1));
}
-static void rtl8139_thread (void *_data)
+static void rtl8139_thread (struct work_struct *work)
{
- struct net_device *dev = _data;
- struct rtl8139_private *tp = netdev_priv(dev);
-
- if ((tp->time_to_die == 0) &&
- (rtnl_lock_interruptible() == 0)) {
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
+ unsigned long thr_delay = next_tick;
+
+ if (tp->watchdog_fired) {
+ tp->watchdog_fired = 0;
+ rtl8139_tx_timeout_task(work);
+ } else if (rtnl_trylock()) {
rtl8139_thread_iter (dev, tp, tp->mmio_addr);
rtnl_unlock ();
+ } else {
+ /* unlikely race. mitigate with fast poll. */
+ thr_delay = HZ / 2;
}
- if (tp->time_to_die == 0)
- schedule_delayed_work(&tp->thread, next_tick);
+ schedule_delayed_work(&tp->thread, thr_delay);
}
static void rtl8139_start_thread(struct rtl8139_private *tp)
{
tp->twistie = 0;
- tp->time_to_die = -1;
if (tp->chipset == CH_8139_K)
tp->twistie = 1;
else if (tp->drv_flags & HAS_LNK_CHNG)
return;
- tp->time_to_die = 0;
+ tp->have_thread = 1;
schedule_delayed_work(&tp->thread, next_tick);
}
static void rtl8139_stop_thread(struct rtl8139_private *tp)
{
- if (tp->time_to_die < 0)
- return;
-
- tp->time_to_die = 1;
- wmb();
-
- if (cancel_delayed_work(&tp->thread) == 0)
+ if (tp->have_thread) {
+ cancel_rearming_delayed_work(&tp->thread);
+ tp->have_thread = 0;
+ } else
flush_scheduled_work();
}
/* XXX account for unsent Tx packets in tp->stats.tx_dropped */
}
-
-static void rtl8139_tx_timeout (struct net_device *dev)
+static void rtl8139_tx_timeout_task (struct work_struct *work)
{
- struct rtl8139_private *tp = netdev_priv(dev);
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
void __iomem *ioaddr = tp->mmio_addr;
int i;
u8 tmp8;
- unsigned long flags;
printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x "
"media %2.2x.\n", dev->name, RTL_R8 (ChipCmd),
if (tmp8 & CmdTxEnb)
RTL_W8 (ChipCmd, CmdRxEnb);
- spin_lock(&tp->rx_lock);
+ spin_lock_bh(&tp->rx_lock);
/* Disable interrupts by clearing the interrupt mask. */
RTL_W16 (IntrMask, 0x0000);
/* Stop a shared interrupt from scavenging while we are. */
- spin_lock_irqsave (&tp->lock, flags);
+ spin_lock_irq(&tp->lock);
rtl8139_tx_clear (tp);
- spin_unlock_irqrestore (&tp->lock, flags);
+ spin_unlock_irq(&tp->lock);
/* ...and finally, reset everything */
if (netif_running(dev)) {
rtl8139_hw_start (dev);
netif_wake_queue (dev);
}
- spin_unlock(&tp->rx_lock);
+ spin_unlock_bh(&tp->rx_lock);
}
+static void rtl8139_tx_timeout (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ if (!tp->have_thread) {
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_tx_timeout_task);
+ schedule_delayed_work(&tp->thread, next_tick);
+ } else
+ tp->watchdog_fired = 1;
+
+}
static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
{
void __iomem *ioaddr = tp->mmio_addr;
unsigned int entry;
unsigned int len = skb->len;
+ unsigned long flags;
/* Calculate the next Tx descriptor entry. */
entry = tp->cur_tx % NUM_TX_DESC;
return 0;
}
- spin_lock_irq(&tp->lock);
+ spin_lock_irqsave(&tp->lock, flags);
RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
netif_stop_queue (dev);
- spin_unlock_irq(&tp->lock);
+ spin_unlock_irqrestore(&tp->lock, flags);
if (netif_msg_tx_queued(tp))
printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n",
int tmp_work;
#endif
- if (netif_msg_rx_err (tp))
+ if (netif_msg_rx_err (tp))
printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n",
dev->name, rx_status);
tp->stats.rx_errors++;
RTL_R16 (RxBufAddr),
RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
- while (netif_running(dev) && received < budget
+ while (netif_running(dev) && received < budget
&& (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
u32 ring_offset = cur_rx % RX_BUF_LEN;
u32 rx_status;
netif_receive_skb (skb);
} else {
- if (net_ratelimit())
+ if (net_ratelimit())
printk (KERN_WARNING
"%s: Memory squeeze, dropping packet.\n",
dev->name);
/* The interrupt handler does all of the Rx thread work and cleans up
after the Tx thread. */
-static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs)
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
{
struct net_device *dev = (struct net_device *) dev_instance;
struct rtl8139_private *tp = netdev_priv(dev);
status = RTL_R16 (IntrStatus);
/* shared irq? */
- if (unlikely((status & rtl8139_intr_mask) == 0))
+ if (unlikely((status & rtl8139_intr_mask) == 0))
goto out;
handled = 1;
/* h/w no longer present (hotplug?) or major error, bail */
- if (unlikely(status == 0xFFFF))
+ if (unlikely(status == 0xFFFF))
goto out;
/* close possible race's with dev_close */
static void rtl8139_poll_controller(struct net_device *dev)
{
disable_irq(dev->irq);
- rtl8139_interrupt(dev->irq, dev, NULL);
+ rtl8139_interrupt(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
}
-static struct ethtool_ops rtl8139_ethtool_ops = {
+static const struct ethtool_ops rtl8139_ethtool_ops = {
.get_drvinfo = rtl8139_get_drvinfo,
.get_settings = rtl8139_get_settings,
.set_settings = rtl8139_set_settings,
/* Note: do not reorder, GCC is clever about common statements. */
if (dev->flags & IFF_PROMISC) {
- /* Unconditionally log net taps. */
- printk (KERN_NOTICE "%s: Promiscuous mode enabled.\n",
- dev->name);
rx_mode =
AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
AcceptAllPhys;
printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
#endif
- return pci_module_init (&rtl8139_pci_driver);
+ return pci_register_driver(&rtl8139_pci_driver);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff