Merge tag '8139cp-20060912-00' of git://electric-eye.fr.zoreil.com/home/romieu/linux-2.6 into tmp
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index 4cdb6b2..488241c 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -314,12 +314,6 @@
u64 addr;
};
-struct ring_info {
- struct sk_buff *skb;
- dma_addr_t mapping;
- u32 len;
-};
-
struct cp_dma_stats {
u64 tx_ok;
u64 rx_ok;
@@ -353,23 +347,23 @@
struct net_device_stats net_stats;
struct cp_extra_stats cp_stats;
- unsigned rx_tail ____cacheline_aligned;
+ unsigned rx_head ____cacheline_aligned;
+ unsigned rx_tail;
struct cp_desc *rx_ring;
- struct ring_info rx_skb[CP_RX_RING_SIZE];
- unsigned rx_buf_sz;
+ struct sk_buff *rx_skb[CP_RX_RING_SIZE];
unsigned tx_head ____cacheline_aligned;
unsigned tx_tail;
-
struct cp_desc *tx_ring;
- struct ring_info tx_skb[CP_TX_RING_SIZE];
- dma_addr_t ring_dma;
+ struct sk_buff *tx_skb[CP_TX_RING_SIZE];
+
+ unsigned rx_buf_sz;
+ unsigned wol_enabled : 1; /* Is Wake-on-LAN enabled? */
#if CP_VLAN_TAG_USED
struct vlan_group *vlgrp;
#endif
-
- unsigned int wol_enabled : 1; /* Is Wake-on-LAN enabled? */
+ dma_addr_t ring_dma;
struct mii_if_info mii_if;
};
@@ -407,10 +401,8 @@
struct ethtool_eeprom *eeprom, u8 *data);
static struct pci_device_id cp_pci_tbl[] = {
- { PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322), },
{ },
};
MODULE_DEVICE_TABLE(pci, cp_pci_tbl);
@@ -542,7 +534,7 @@
struct cp_desc *desc;
unsigned buflen;
- skb = cp->rx_skb[rx_tail].skb;
+ skb = cp->rx_skb[rx_tail];
BUG_ON(!skb);
desc = &cp->rx_ring[rx_tail];
@@ -551,7 +543,7 @@
break;
len = (status & 0x1fff) - 4;
- mapping = cp->rx_skb[rx_tail].mapping;
+ mapping = le64_to_cpu(desc->addr);
if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) {
/* we don't support incoming fragmented frames.
@@ -572,7 +564,7 @@
if (netif_msg_rx_status(cp))
printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d\n",
- cp->dev->name, rx_tail, status, len);
+ dev->name, rx_tail, status, len);
buflen = cp->rx_buf_sz + RX_OFFSET;
new_skb = dev_alloc_skb (buflen);
@@ -582,7 +574,7 @@
}
skb_reserve(new_skb, RX_OFFSET);
- new_skb->dev = cp->dev;
+ new_skb->dev = dev;
pci_unmap_single(cp->pdev, mapping,
buflen, PCI_DMA_FROMDEVICE);
@@ -595,11 +587,9 @@
skb_put(skb, len);
- mapping =
- cp->rx_skb[rx_tail].mapping =
- pci_map_single(cp->pdev, new_skb->data,
- buflen, PCI_DMA_FROMDEVICE);
- cp->rx_skb[rx_tail].skb = new_skb;
+ mapping = pci_map_single(cp->pdev, new_skb->data, buflen,
+ PCI_DMA_FROMDEVICE);
+ cp->rx_skb[rx_tail] = new_skb;
cp_rx_skb(cp, skb, desc);
rx++;
@@ -717,19 +707,21 @@
unsigned tx_tail = cp->tx_tail;
while (tx_tail != tx_head) {
+ struct cp_desc *txd = cp->tx_ring + tx_tail;
struct sk_buff *skb;
u32 status;
rmb();
- status = le32_to_cpu(cp->tx_ring[tx_tail].opts1);
+ status = le32_to_cpu(txd->opts1);
if (status & DescOwn)
break;
- skb = cp->tx_skb[tx_tail].skb;
+ skb = cp->tx_skb[tx_tail];
BUG_ON(!skb);
- pci_unmap_single(cp->pdev, cp->tx_skb[tx_tail].mapping,
- cp->tx_skb[tx_tail].len, PCI_DMA_TODEVICE);
+ pci_unmap_single(cp->pdev, le64_to_cpu(txd->addr),
+ le32_to_cpu(txd->opts1) & 0xffff,
+ PCI_DMA_TODEVICE);
if (status & LastFrag) {
if (status & (TxError | TxFIFOUnder)) {
@@ -756,7 +748,7 @@
dev_kfree_skb_irq(skb);
}
- cp->tx_skb[tx_tail].skb = NULL;
+ cp->tx_skb[tx_tail] = NULL;
tx_tail = NEXT_TX(tx_tail);
}
@@ -826,9 +818,7 @@
txd->opts1 = cpu_to_le32(flags);
wmb();
- cp->tx_skb[entry].skb = skb;
- cp->tx_skb[entry].mapping = mapping;
- cp->tx_skb[entry].len = len;
+ cp->tx_skb[entry] = skb;
entry = NEXT_TX(entry);
} else {
struct cp_desc *txd;
@@ -844,9 +834,7 @@
first_len = skb_headlen(skb);
first_mapping = pci_map_single(cp->pdev, skb->data,
first_len, PCI_DMA_TODEVICE);
- cp->tx_skb[entry].skb = skb;
- cp->tx_skb[entry].mapping = first_mapping;
- cp->tx_skb[entry].len = first_len;
+ cp->tx_skb[entry] = skb;
entry = NEXT_TX(entry);
for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
@@ -887,9 +875,7 @@
txd->opts1 = cpu_to_le32(ctrl);
wmb();
- cp->tx_skb[entry].skb = skb;
- cp->tx_skb[entry].mapping = mapping;
- cp->tx_skb[entry].len = len;
+ cp->tx_skb[entry] = skb;
entry = NEXT_TX(entry);
}
@@ -1089,6 +1075,7 @@
for (i = 0; i < CP_RX_RING_SIZE; i++) {
struct sk_buff *skb;
+ dma_addr_t mapping;
skb = dev_alloc_skb(cp->rx_buf_sz + RX_OFFSET);
if (!skb)
@@ -1097,12 +1084,12 @@
skb->dev = cp->dev;
skb_reserve(skb, RX_OFFSET);
- cp->rx_skb[i].mapping = pci_map_single(cp->pdev,
- skb->data, cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- cp->rx_skb[i].skb = skb;
+ mapping = pci_map_single(cp->pdev, skb->data, cp->rx_buf_sz,
+ PCI_DMA_FROMDEVICE);
+ cp->rx_skb[i] = skb;
cp->rx_ring[i].opts2 = 0;
- cp->rx_ring[i].addr = cpu_to_le64(cp->rx_skb[i].mapping);
+ cp->rx_ring[i].addr = cpu_to_le64(mapping);
if (i == (CP_RX_RING_SIZE - 1))
cp->rx_ring[i].opts1 =
cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz);
@@ -1150,23 +1137,27 @@
static void cp_clean_rings (struct cp_private *cp)
{
+ struct cp_desc *desc;
unsigned i;
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,
+ if (cp->rx_skb[i]) {
+ desc = cp->rx_ring + i;
+ pci_unmap_single(cp->pdev, le64_to_cpu(desc->addr),
cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(cp->rx_skb[i].skb);
+ dev_kfree_skb(cp->rx_skb[i]);
}
}
for (i = 0; i < CP_TX_RING_SIZE; i++) {
- if (cp->tx_skb[i].skb) {
- struct sk_buff *skb = cp->tx_skb[i].skb;
+ if (cp->tx_skb[i]) {
+ struct sk_buff *skb = cp->tx_skb[i];
- pci_unmap_single(cp->pdev, cp->tx_skb[i].mapping,
- cp->tx_skb[i].len, PCI_DMA_TODEVICE);
- if (le32_to_cpu(cp->tx_ring[i].opts1) & LastFrag)
+ desc = cp->tx_ring + i;
+ pci_unmap_single(cp->pdev, le64_to_cpu(desc->addr),
+ le32_to_cpu(desc->opts1) & 0xffff,
+ PCI_DMA_TODEVICE);
+ if (le32_to_cpu(desc->opts1) & LastFrag)
dev_kfree_skb(skb);
cp->net_stats.tx_dropped++;
}
@@ -1175,8 +1166,8 @@
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);
+ memset(cp->rx_skb, 0, sizeof(struct sk_buff *) * CP_RX_RING_SIZE);
+ memset(cp->tx_skb, 0, sizeof(struct sk_buff *) * CP_TX_RING_SIZE);
}
static void cp_free_rings (struct cp_private *cp)
@@ -2008,7 +1999,6 @@
struct net_device *dev = pci_get_drvdata(pdev);
struct cp_private *cp = netdev_priv(dev);
- BUG_ON(!dev);
unregister_netdev(dev);
iounmap(cp->regs);
if (cp->wol_enabled)
@@ -2023,14 +2013,12 @@
#ifdef CONFIG_PM
static int cp_suspend (struct pci_dev *pdev, pm_message_t state)
{
- struct net_device *dev;
- struct cp_private *cp;
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct cp_private *cp = netdev_priv(dev);
unsigned long flags;
- dev = pci_get_drvdata (pdev);
- cp = netdev_priv(dev);
-
- if (!dev || !netif_running (dev)) return 0;
+ if (!netif_running(dev))
+ return 0;
netif_device_detach (dev);
netif_stop_queue (dev);