#define NATSEMI_RX_LIMIT 2046 /* maximum supported by hardware */
/* These identify the driver base version and may not be removed. */
-static const char version[] __devinitdata =
+static const char version[] __devinitconst =
KERN_INFO DRV_NAME " dp8381x driver, version "
DRV_VERSION ", " DRV_RELDATE "\n"
KERN_INFO " originally by Donald Becker <becker@scyld.com>\n"
IIId. Synchronization
Most operations are synchronized on the np->lock irq spinlock, except the
-performance critical codepaths:
-
-The rx process only runs in the interrupt handler. Access from outside
-the interrupt handler is only permitted after disable_irq().
-
-The rx process usually runs under the netif_tx_lock. If np->intr_tx_reap
-is set, then access is permitted under spin_lock_irq(&np->lock).
-
-Thus configuration functions that want to access everything must call
- disable_irq(dev->irq);
- netif_tx_lock_bh(dev);
- spin_lock_irq(&np->lock);
-
-IV. Notes
-
-NatSemi PCI network controllers are very uncommon.
+recieve and transmit paths which are synchronised using a combination of
+hardware descriptor ownership, disabling interrupts and NAPI poll scheduling.
IVb. References
};
/* array of board data directly indexed by pci_tbl[x].driver_data */
-static const struct {
+static struct {
const char *name;
unsigned long flags;
unsigned int eeprom_size;
{ "NatSemi DP8381[56]", 0, 24 },
};
-static const struct pci_device_id natsemi_pci_tbl[] __devinitdata = {
+static struct pci_device_id natsemi_pci_tbl[] __devinitdata = {
{ PCI_VENDOR_ID_NS, 0x0020, 0x12d9, 0x000c, 0, 0, 0 },
{ PCI_VENDOR_ID_NS, 0x0020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
{ } /* terminate list */
/* Note that using only 32 bit fields simplifies conversion to big-endian
architectures. */
struct netdev_desc {
- u32 next_desc;
- s32 cmd_status;
- u32 addr;
- u32 software_use;
+ __le32 next_desc;
+ __le32 cmd_status;
+ __le32 addr;
+ __le32 software_use;
};
/* Bits in network_desc.status */
static void check_link(struct net_device *dev);
static void netdev_timer(unsigned long data);
static void dump_ring(struct net_device *dev);
-static void tx_timeout(struct net_device *dev);
+static void ns_tx_timeout(struct net_device *dev);
static int alloc_ring(struct net_device *dev);
static void refill_rx(struct net_device *dev);
static void init_ring(struct net_device *dev);
NATSEMI_ATTR(dspcfg_workaround);
static ssize_t natsemi_show_dspcfg_workaround(struct device *dev,
- struct device_attribute *attr,
+ struct device_attribute *attr,
char *buf)
{
struct netdev_private *np = netdev_priv(to_net_dev(dev));
|| !strncmp("0", buf, count - 1))
new_setting = 0;
else
- return count;
+ return count;
spin_lock_irqsave(&np->lock, flags);
}
+static const struct net_device_ops natsemi_netdev_ops = {
+ .ndo_open = netdev_open,
+ .ndo_stop = netdev_close,
+ .ndo_start_xmit = start_tx,
+ .ndo_get_stats = get_stats,
+ .ndo_set_multicast_list = set_rx_mode,
+ .ndo_change_mtu = natsemi_change_mtu,
+ .ndo_do_ioctl = netdev_ioctl,
+ .ndo_tx_timeout = ns_tx_timeout,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = natsemi_poll_controller,
+#endif
+};
+
static int __devinit natsemi_probe1 (struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct netdev_private *np;
int i, option, irq, chip_idx = ent->driver_data;
static int find_cnt = -1;
- unsigned long iostart, iosize;
+ resource_size_t iostart;
+ unsigned long iosize;
void __iomem *ioaddr;
const int pcibar = 1; /* PCI base address register */
int prev_eedata;
u32 tmp;
- DECLARE_MAC_BUF(mac);
/* when built into the kernel, we only print version if device is found */
#ifndef MODULE
if (find_cnt < MAX_UNITS && full_duplex[find_cnt])
np->full_duplex = 1;
- /* The chip-specific entries in the device structure. */
- dev->open = &netdev_open;
- dev->hard_start_xmit = &start_tx;
- dev->stop = &netdev_close;
- dev->get_stats = &get_stats;
- dev->set_multicast_list = &set_rx_mode;
- dev->change_mtu = &natsemi_change_mtu;
- dev->do_ioctl = &netdev_ioctl;
- dev->tx_timeout = &tx_timeout;
+ dev->netdev_ops = &natsemi_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = &natsemi_poll_controller;
-#endif
SET_ETHTOOL_OPS(dev, ðtool_ops);
if (mtu)
goto err_create_file;
if (netif_msg_drv(np)) {
- printk(KERN_INFO "natsemi %s: %s at %#08lx "
- "(%s), %s, IRQ %d",
- dev->name, natsemi_pci_info[chip_idx].name, iostart,
- pci_name(np->pci_dev), print_mac(mac, dev->dev_addr), irq);
+ printk(KERN_INFO "natsemi %s: %s at %#08llx "
+ "(%s), %pM, IRQ %d",
+ dev->name, natsemi_pci_info[chip_idx].name,
+ (unsigned long long)iostart, pci_name(np->pci_dev),
+ dev->dev_addr, irq);
if (dev->if_port == PORT_TP)
printk(", port TP.\n");
else if (np->ignore_phy)
}
}
-static void tx_timeout(struct net_device *dev)
+static void ns_tx_timeout(struct net_device *dev)
{
struct netdev_private *np = netdev_priv(dev);
void __iomem * ioaddr = ns_ioaddr(dev);
/* Free all the skbuffs in the Rx queue. */
for (i = 0; i < RX_RING_SIZE; i++) {
np->rx_ring[i].cmd_status = 0;
- np->rx_ring[i].addr = 0xBADF00D0; /* An invalid address. */
+ np->rx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */
if (np->rx_skbuff[i]) {
pci_unmap_single(np->pci_dev,
np->rx_dma[i], buflen,
prefetch(&np->rx_skbuff[np->cur_rx % RX_RING_SIZE]);
- if (netif_rx_schedule_prep(dev, &np->napi)) {
+ if (napi_schedule_prep(&np->napi)) {
/* Disable interrupts and register for poll */
natsemi_irq_disable(dev);
- __netif_rx_schedule(dev, &np->napi);
+ __napi_schedule(&np->napi);
} else
printk(KERN_WARNING
"%s: Ignoring interrupt, status %#08x, mask %#08x.\n",
np->intr_status = readl(ioaddr + IntrStatus);
} while (np->intr_status);
- netif_rx_complete(dev, napi);
+ napi_complete(napi);
/* Reenable interrupts providing nothing is trying to shut
* the chip down. */
spin_lock(&np->lock);
- if (!np->hands_off && netif_running(dev))
+ if (!np->hands_off)
natsemi_irq_enable(dev);
spin_unlock(&np->lock);
}
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
- dev->last_rx = jiffies;
np->stats.rx_packets++;
np->stats.rx_bytes += pkt_len;
}
* suspend/resume synchronization:
* entry points:
* netdev_open, netdev_close, netdev_ioctl, set_rx_mode, intr_handler,
- * start_tx, tx_timeout
+ * start_tx, ns_tx_timeout
*
* No function accesses the hardware without checking np->hands_off.
* the check occurs under spin_lock_irq(&np->lock);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff