#include <linux/config.h>
#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver");
+MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
static int debug = -1;
-MODULE_PARM (debug, "i");
+module_param(debug, int, 0);
MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number");
/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
The RTL chips use a 64 element hash table based on the Ethernet CRC. */
static int multicast_filter_limit = 32;
-MODULE_PARM (multicast_filter_limit, "i");
+module_param(multicast_filter_limit, int, 0);
MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses");
#define PFX DRV_NAME ": "
struct ring_info {
struct sk_buff *skb;
dma_addr_t mapping;
- unsigned frag;
+ u32 len;
};
struct cp_dma_stats {
static void __cp_set_rx_mode (struct net_device *dev);
static void cp_tx (struct cp_private *cp);
static void cp_clean_rings (struct cp_private *cp);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void cp_poll_controller(struct net_device *dev);
+#endif
static struct pci_device_id cp_pci_tbl[] = {
{ PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139,
return IRQ_HANDLED;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void cp_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ cp_interrupt(dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
static void cp_tx (struct cp_private *cp)
{
unsigned tx_head = cp->tx_head;
BUG();
pci_unmap_single(cp->pdev, cp->tx_skb[tx_tail].mapping,
- skb->len, PCI_DMA_TODEVICE);
+ cp->tx_skb[tx_tail].len, PCI_DMA_TODEVICE);
if (status & LastFrag) {
if (status & (TxError | TxFIFOUnder)) {
else if (ip->protocol == IPPROTO_UDP)
flags |= IPCS | UDPCS;
else
- BUG();
+ WARN_ON(1); /* we need a WARN() */
}
txd->opts1 = cpu_to_le32(flags);
cp->tx_skb[entry].skb = skb;
cp->tx_skb[entry].mapping = mapping;
- cp->tx_skb[entry].frag = 0;
+ cp->tx_skb[entry].len = len;
entry = NEXT_TX(entry);
} else {
struct cp_desc *txd;
first_len, PCI_DMA_TODEVICE);
cp->tx_skb[entry].skb = skb;
cp->tx_skb[entry].mapping = first_mapping;
- cp->tx_skb[entry].frag = 1;
+ cp->tx_skb[entry].len = first_len;
entry = NEXT_TX(entry);
for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
cp->tx_skb[entry].skb = skb;
cp->tx_skb[entry].mapping = mapping;
- cp->tx_skb[entry].frag = frag + 2;
+ cp->tx_skb[entry].len = len;
entry = NEXT_TX(entry);
}
cp->rx_skb[i].mapping = pci_map_single(cp->pdev,
skb->tail, cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
cp->rx_skb[i].skb = skb;
- cp->rx_skb[i].frag = 0;
cp->rx_ring[i].opts2 = 0;
cp->rx_ring[i].addr = cpu_to_le64(cp->rx_skb[i].mapping);
{
unsigned i;
- memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
- memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
-
for (i = 0; i < CP_RX_RING_SIZE; i++) {
if (cp->rx_skb[i].skb) {
pci_unmap_single(cp->pdev, cp->rx_skb[i].mapping,
for (i = 0; i < CP_TX_RING_SIZE; i++) {
if (cp->tx_skb[i].skb) {
struct sk_buff *skb = cp->tx_skb[i].skb;
+
pci_unmap_single(cp->pdev, cp->tx_skb[i].mapping,
- skb->len, PCI_DMA_TODEVICE);
- dev_kfree_skb(skb);
+ cp->tx_skb[i].len, PCI_DMA_TODEVICE);
+ if (le32_to_cpu(cp->tx_ring[i].opts1) & LastFrag)
+ dev_kfree_skb(skb);
cp->net_stats.tx_dropped++;
}
}
+ memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
+ memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
+
memset(&cp->rx_skb, 0, sizeof(struct ring_info) * CP_RX_RING_SIZE);
memset(&cp->tx_skb, 0, sizeof(struct ring_info) * CP_TX_RING_SIZE);
}
struct ethtool_stats *estats, u64 *tmp_stats)
{
struct cp_private *cp = netdev_priv(dev);
- unsigned int work = 100;
int i;
+ memset(cp->nic_stats, 0, sizeof(struct cp_dma_stats));
+
/* begin NIC statistics dump */
cpw32(StatsAddr + 4, (cp->nic_stats_dma >> 16) >> 16);
cpw32(StatsAddr, (cp->nic_stats_dma & 0xffffffff) | DumpStats);
cpr32(StatsAddr);
- while (work-- > 0) {
+ for (i = 0; i < 1000; i++) {
if ((cpr32(StatsAddr) & DumpStats) == 0)
break;
- cpu_relax();
+ udelay(10);
}
-
- if (cpr32(StatsAddr) & DumpStats)
- return /* -EIO */;
+ cpw32(StatsAddr, 0);
+ cpw32(StatsAddr + 4, 0);
i = 0;
tmp_stats[i++] = le64_to_cpu(cp->nic_stats->tx_ok);
/* Configure DMA attributes. */
if ((sizeof(dma_addr_t) > 4) &&
- !pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL) &&
- !pci_set_dma_mask(pdev, 0xffffffffffffffffULL)) {
+ !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) &&
+ !pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
pci_using_dac = 1;
} else {
pci_using_dac = 0;
- rc = pci_set_dma_mask(pdev, 0xffffffffULL);
+ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
printk(KERN_ERR PFX "No usable DMA configuration, "
"aborting.\n");
goto err_out_res;
}
- rc = pci_set_consistent_dma_mask(pdev, 0xffffffffULL);
+ rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
printk(KERN_ERR PFX "No usable consistent DMA configuration, "
"aborting.\n");
dev->get_stats = cp_get_stats;
dev->do_ioctl = cp_ioctl;
dev->poll = cp_rx_poll;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = cp_poll_controller;
+#endif
dev->weight = 16; /* arbitrary? from NAPI_HOWTO.txt. */
#ifdef BROKEN
dev->change_mtu = cp_change_mtu;
projects / linux-2.6 / blobdiff