V4L/DVB (8971): initial driver for af9013 demodulator

[safe/jmp/linux-2.6] / drivers / net / natsemi.c

diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index c329a4f..f7fa394 100644 (file)
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -127,7 +127,7 @@ static int full_duplex[MAX_UNITS];
 #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 char version[] __devinitdata =
   KERN_INFO DRV_NAME " dp8381x driver, version "
       DRV_VERSION ", " DRV_RELDATE "\n"
   KERN_INFO "  originally by Donald Becker <becker@scyld.com>\n"
@@ -203,22 +203,8 @@ skbuff at an offset of "+2", 16-byte aligning the IP header.
 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
 
@@ -252,7 +238,7 @@ enum {
 };
 
 /* 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;
@@ -261,7 +247,7 @@ static const struct {
        { "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 */
@@ -525,10 +511,10 @@ enum PhyCtrl_bits {
 /* 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 */
@@ -626,7 +612,7 @@ static void undo_cable_magic(struct net_device *dev);
 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);
@@ -678,7 +664,7 @@ static ssize_t natsemi_show_##_name(struct 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));
@@ -701,7 +687,7 @@ static ssize_t natsemi_set_dspcfg_workaround(struct device *dev,
                  || !strncmp("0", buf, count - 1))
                new_setting = 0;
        else
-                 return count; 
+                 return count;
 
        spin_lock_irqsave(&np->lock, flags);
 
@@ -800,7 +786,8 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev,
        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;
@@ -933,7 +920,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev,
        dev->set_multicast_list = &set_rx_mode;
        dev->change_mtu = &natsemi_change_mtu;
        dev->do_ioctl = &netdev_ioctl;
-       dev->tx_timeout = &tx_timeout;
+       dev->tx_timeout = &ns_tx_timeout;
        dev->watchdog_timeo = TX_TIMEOUT;
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
@@ -960,10 +947,11 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev,
                goto err_create_file;
 
        if (netif_msg_drv(np)) {
-               printk(KERN_INFO "natsemi %s: %s at %#08lx "
+               printk(KERN_INFO "natsemi %s: %s at %#08llx "
                       "(%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);
+                      dev->name, natsemi_pci_info[chip_idx].name,
+                      (unsigned long long)iostart, pci_name(np->pci_dev),
+                      print_mac(mac, dev->dev_addr), irq);
                if (dev->if_port == PORT_TP)
                        printk(", port TP.\n");
                else if (np->ignore_phy)
@@ -1887,7 +1875,7 @@ 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)
 {
        struct netdev_private *np = netdev_priv(dev);
        void __iomem * ioaddr = ns_ioaddr(dev);
@@ -2032,7 +2020,7 @@ static void drain_rx(struct net_device *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,
@@ -3244,7 +3232,7 @@ static void __devexit natsemi_remove1 (struct pci_dev *pdev)
  * 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);