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path: root/drivers/net/sundance.c
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Diffstat (limited to 'drivers/net/sundance.c')
-rw-r--r--drivers/net/sundance.c275
1 files changed, 207 insertions, 68 deletions
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 2678588ea4b..3ed2a67bd6d 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -96,16 +96,10 @@ static char *media[MAX_UNITS];
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
-#ifndef _COMPAT_WITH_OLD_KERNEL
+#include <linux/dma-mapping.h>
#include <linux/crc32.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
-#else
-#include "crc32.h"
-#include "ethtool.h"
-#include "mii.h"
-#include "compat.h"
-#endif
/* These identify the driver base version and may not be removed. */
static const char version[] __devinitconst =
@@ -369,9 +363,21 @@ struct netdev_private {
dma_addr_t tx_ring_dma;
dma_addr_t rx_ring_dma;
struct timer_list timer; /* Media monitoring timer. */
+ /* ethtool extra stats */
+ struct {
+ u64 tx_multiple_collisions;
+ u64 tx_single_collisions;
+ u64 tx_late_collisions;
+ u64 tx_deferred;
+ u64 tx_deferred_excessive;
+ u64 tx_aborted;
+ u64 tx_bcasts;
+ u64 rx_bcasts;
+ u64 tx_mcasts;
+ u64 rx_mcasts;
+ } xstats;
/* Frequently used values: keep some adjacent for cache effect. */
spinlock_t lock;
- spinlock_t rx_lock; /* Group with Tx control cache line. */
int msg_enable;
int chip_id;
unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
@@ -396,6 +402,7 @@ struct netdev_private {
unsigned char phys[MII_CNT]; /* MII device addresses, only first one used. */
struct pci_dev *pci_dev;
void __iomem *base;
+ spinlock_t statlock;
};
/* The station address location in the EEPROM. */
@@ -520,16 +527,19 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
np->chip_id = chip_idx;
np->msg_enable = (1 << debug) - 1;
spin_lock_init(&np->lock);
+ spin_lock_init(&np->statlock);
tasklet_init(&np->rx_tasklet, rx_poll, (unsigned long)dev);
tasklet_init(&np->tx_tasklet, tx_poll, (unsigned long)dev);
- ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
+ ring_space = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE,
+ &ring_dma, GFP_KERNEL);
if (!ring_space)
goto err_out_cleardev;
np->tx_ring = (struct netdev_desc *)ring_space;
np->tx_ring_dma = ring_dma;
- ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
+ ring_space = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE,
+ &ring_dma, GFP_KERNEL);
if (!ring_space)
goto err_out_unmap_tx;
np->rx_ring = (struct netdev_desc *)ring_space;
@@ -663,9 +673,11 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
err_out_unregister:
unregister_netdev(dev);
err_out_unmap_rx:
- pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
+ dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE,
+ np->rx_ring, np->rx_ring_dma);
err_out_unmap_tx:
- pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
+ dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE,
+ np->tx_ring, np->tx_ring_dma);
err_out_cleardev:
pci_set_drvdata(pdev, NULL);
pci_iounmap(pdev, ioaddr);
@@ -874,7 +886,7 @@ static int netdev_open(struct net_device *dev)
init_timer(&np->timer);
np->timer.expires = jiffies + 3*HZ;
np->timer.data = (unsigned long)dev;
- np->timer.function = &netdev_timer; /* timer handler */
+ np->timer.function = netdev_timer; /* timer handler */
add_timer(&np->timer);
/* Enable interrupts by setting the interrupt mask. */
@@ -1011,8 +1023,14 @@ static void init_ring(struct net_device *dev)
skb->dev = dev; /* Mark as being used by this device. */
skb_reserve(skb, 2); /* 16 byte align the IP header. */
np->rx_ring[i].frag[0].addr = cpu_to_le32(
- pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz,
- PCI_DMA_FROMDEVICE));
+ dma_map_single(&np->pci_dev->dev, skb->data,
+ np->rx_buf_sz, DMA_FROM_DEVICE));
+ if (dma_mapping_error(&np->pci_dev->dev,
+ np->rx_ring[i].frag[0].addr)) {
+ dev_kfree_skb(skb);
+ np->rx_skbuff[i] = NULL;
+ break;
+ }
np->rx_ring[i].frag[0].length = cpu_to_le32(np->rx_buf_sz | LastFrag);
}
np->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
@@ -1063,9 +1081,11 @@ start_tx (struct sk_buff *skb, struct net_device *dev)
txdesc->next_desc = 0;
txdesc->status = cpu_to_le32 ((entry << 2) | DisableAlign);
- txdesc->frag[0].addr = cpu_to_le32 (pci_map_single (np->pci_dev, skb->data,
- skb->len,
- PCI_DMA_TODEVICE));
+ txdesc->frag[0].addr = cpu_to_le32(dma_map_single(&np->pci_dev->dev,
+ skb->data, skb->len, DMA_TO_DEVICE));
+ if (dma_mapping_error(&np->pci_dev->dev,
+ txdesc->frag[0].addr))
+ goto drop_frame;
txdesc->frag[0].length = cpu_to_le32 (skb->len | LastFrag);
/* Increment cur_tx before tasklet_schedule() */
@@ -1087,6 +1107,12 @@ start_tx (struct sk_buff *skb, struct net_device *dev)
dev->name, np->cur_tx, entry);
}
return NETDEV_TX_OK;
+
+drop_frame:
+ dev_kfree_skb(skb);
+ np->tx_skbuff[entry] = NULL;
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
}
/* Reset hardware tx and free all of tx buffers */
@@ -1097,7 +1123,6 @@ reset_tx (struct net_device *dev)
void __iomem *ioaddr = np->base;
struct sk_buff *skb;
int i;
- int irq = in_interrupt();
/* Reset tx logic, TxListPtr will be cleaned */
iowrite16 (TxDisable, ioaddr + MACCtrl1);
@@ -1109,13 +1134,10 @@ reset_tx (struct net_device *dev)
skb = np->tx_skbuff[i];
if (skb) {
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(np->tx_ring[i].frag[0].addr),
- skb->len, PCI_DMA_TODEVICE);
- if (irq)
- dev_kfree_skb_irq (skb);
- else
- dev_kfree_skb (skb);
+ skb->len, DMA_TO_DEVICE);
+ dev_kfree_skb_any(skb);
np->tx_skbuff[i] = NULL;
dev->stats.tx_dropped++;
}
@@ -1233,9 +1255,9 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
break;
skb = np->tx_skbuff[entry];
/* Free the original skb. */
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(np->tx_ring[entry].frag[0].addr),
- skb->len, PCI_DMA_TODEVICE);
+ skb->len, DMA_TO_DEVICE);
dev_kfree_skb_irq (np->tx_skbuff[entry]);
np->tx_skbuff[entry] = NULL;
np->tx_ring[entry].frag[0].addr = 0;
@@ -1252,9 +1274,9 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
break;
skb = np->tx_skbuff[entry];
/* Free the original skb. */
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(np->tx_ring[entry].frag[0].addr),
- skb->len, PCI_DMA_TODEVICE);
+ skb->len, DMA_TO_DEVICE);
dev_kfree_skb_irq (np->tx_skbuff[entry]);
np->tx_skbuff[entry] = NULL;
np->tx_ring[entry].frag[0].addr = 0;
@@ -1334,22 +1356,18 @@ static void rx_poll(unsigned long data)
if (pkt_len < rx_copybreak &&
(skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
skb_reserve(skb, 2); /* 16 byte align the IP header */
- pci_dma_sync_single_for_cpu(np->pci_dev,
- le32_to_cpu(desc->frag[0].addr),
- np->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
-
+ dma_sync_single_for_cpu(&np->pci_dev->dev,
+ le32_to_cpu(desc->frag[0].addr),
+ np->rx_buf_sz, DMA_FROM_DEVICE);
skb_copy_to_linear_data(skb, np->rx_skbuff[entry]->data, pkt_len);
- pci_dma_sync_single_for_device(np->pci_dev,
- le32_to_cpu(desc->frag[0].addr),
- np->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
+ dma_sync_single_for_device(&np->pci_dev->dev,
+ le32_to_cpu(desc->frag[0].addr),
+ np->rx_buf_sz, DMA_FROM_DEVICE);
skb_put(skb, pkt_len);
} else {
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(desc->frag[0].addr),
- np->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
+ np->rx_buf_sz, DMA_FROM_DEVICE);
skb_put(skb = np->rx_skbuff[entry], pkt_len);
np->rx_skbuff[entry] = NULL;
}
@@ -1396,8 +1414,14 @@ static void refill_rx (struct net_device *dev)
skb->dev = dev; /* Mark as being used by this device. */
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
np->rx_ring[entry].frag[0].addr = cpu_to_le32(
- pci_map_single(np->pci_dev, skb->data,
- np->rx_buf_sz, PCI_DMA_FROMDEVICE));
+ dma_map_single(&np->pci_dev->dev, skb->data,
+ np->rx_buf_sz, DMA_FROM_DEVICE));
+ if (dma_mapping_error(&np->pci_dev->dev,
+ np->rx_ring[entry].frag[0].addr)) {
+ dev_kfree_skb_irq(skb);
+ np->rx_skbuff[entry] = NULL;
+ break;
+ }
}
/* Perhaps we need not reset this field. */
np->rx_ring[entry].frag[0].length =
@@ -1475,27 +1499,41 @@ static struct net_device_stats *get_stats(struct net_device *dev)
{
struct netdev_private *np = netdev_priv(dev);
void __iomem *ioaddr = np->base;
- int i;
+ unsigned long flags;
+ u8 late_coll, single_coll, mult_coll;
- /* We should lock this segment of code for SMP eventually, although
- the vulnerability window is very small and statistics are
- non-critical. */
+ spin_lock_irqsave(&np->statlock, flags);
/* The chip only need report frame silently dropped. */
dev->stats.rx_missed_errors += ioread8(ioaddr + RxMissed);
dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
- dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
- dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
- dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
- ioread8(ioaddr + StatsTxDefer);
- for (i = StatsTxDefer; i <= StatsMcastRx; i++)
- ioread8(ioaddr + i);
+
+ mult_coll = ioread8(ioaddr + StatsMultiColl);
+ np->xstats.tx_multiple_collisions += mult_coll;
+ single_coll = ioread8(ioaddr + StatsOneColl);
+ np->xstats.tx_single_collisions += single_coll;
+ late_coll = ioread8(ioaddr + StatsLateColl);
+ np->xstats.tx_late_collisions += late_coll;
+ dev->stats.collisions += mult_coll
+ + single_coll
+ + late_coll;
+
+ np->xstats.tx_deferred += ioread8(ioaddr + StatsTxDefer);
+ np->xstats.tx_deferred_excessive += ioread8(ioaddr + StatsTxXSDefer);
+ np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+ np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+ np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+ np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+ np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);
dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsHigh) << 16;
+ spin_unlock_irqrestore(&np->statlock, flags);
+
return &dev->stats;
}
@@ -1554,6 +1592,21 @@ static int __set_mac_addr(struct net_device *dev)
return 0;
}
+static const struct {
+ const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+ { "tx_multiple_collisions" },
+ { "tx_single_collisions" },
+ { "tx_late_collisions" },
+ { "tx_deferred" },
+ { "tx_deferred_excessive" },
+ { "tx_aborted" },
+ { "tx_bcasts" },
+ { "rx_bcasts" },
+ { "tx_mcasts" },
+ { "rx_mcasts" },
+};
+
static int check_if_running(struct net_device *dev)
{
if (!netif_running(dev))
@@ -1612,6 +1665,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
np->msg_enable = val;
}
+static void get_strings(struct net_device *dev, u32 stringset,
+ u8 *data)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(sundance_stats);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int i = 0;
+
+ get_stats(dev);
+ data[i++] = np->xstats.tx_multiple_collisions;
+ data[i++] = np->xstats.tx_single_collisions;
+ data[i++] = np->xstats.tx_late_collisions;
+ data[i++] = np->xstats.tx_deferred;
+ data[i++] = np->xstats.tx_deferred_excessive;
+ data[i++] = np->xstats.tx_aborted;
+ data[i++] = np->xstats.tx_bcasts;
+ data[i++] = np->xstats.rx_bcasts;
+ data[i++] = np->xstats.tx_mcasts;
+ data[i++] = np->xstats.rx_mcasts;
+}
+
static const struct ethtool_ops ethtool_ops = {
.begin = check_if_running,
.get_drvinfo = get_drvinfo,
@@ -1621,6 +1710,9 @@ static const struct ethtool_ops ethtool_ops = {
.get_link = get_link,
.get_msglevel = get_msglevel,
.set_msglevel = set_msglevel,
+ .get_strings = get_strings,
+ .get_sset_count = get_sset_count,
+ .get_ethtool_stats = get_ethtool_stats,
};
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
@@ -1715,9 +1807,9 @@ static int netdev_close(struct net_device *dev)
np->rx_ring[i].status = 0;
skb = np->rx_skbuff[i];
if (skb) {
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(np->rx_ring[i].frag[0].addr),
- np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ np->rx_buf_sz, DMA_FROM_DEVICE);
dev_kfree_skb(skb);
np->rx_skbuff[i] = NULL;
}
@@ -1727,9 +1819,9 @@ static int netdev_close(struct net_device *dev)
np->tx_ring[i].next_desc = 0;
skb = np->tx_skbuff[i];
if (skb) {
- pci_unmap_single(np->pci_dev,
+ dma_unmap_single(&np->pci_dev->dev,
le32_to_cpu(np->tx_ring[i].frag[0].addr),
- skb->len, PCI_DMA_TODEVICE);
+ skb->len, DMA_TO_DEVICE);
dev_kfree_skb(skb);
np->tx_skbuff[i] = NULL;
}
@@ -1743,25 +1835,72 @@ static void __devexit sundance_remove1 (struct pci_dev *pdev)
struct net_device *dev = pci_get_drvdata(pdev);
if (dev) {
- struct netdev_private *np = netdev_priv(dev);
-
- unregister_netdev(dev);
- pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring,
- np->rx_ring_dma);
- pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring,
- np->tx_ring_dma);
- pci_iounmap(pdev, np->base);
- pci_release_regions(pdev);
- free_netdev(dev);
- pci_set_drvdata(pdev, NULL);
+ struct netdev_private *np = netdev_priv(dev);
+ unregister_netdev(dev);
+ dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE,
+ np->rx_ring, np->rx_ring_dma);
+ dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE,
+ np->tx_ring, np->tx_ring_dma);
+ pci_iounmap(pdev, np->base);
+ pci_release_regions(pdev);
+ free_netdev(dev);
+ pci_set_drvdata(pdev, NULL);
+ }
+}
+
+#ifdef CONFIG_PM
+
+static int sundance_suspend(struct pci_dev *pci_dev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pci_dev);
+
+ if (!netif_running(dev))
+ return 0;
+
+ netdev_close(dev);
+ netif_device_detach(dev);
+
+ pci_save_state(pci_dev);
+ pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
+
+ return 0;
+}
+
+static int sundance_resume(struct pci_dev *pci_dev)
+{
+ struct net_device *dev = pci_get_drvdata(pci_dev);
+ int err = 0;
+
+ if (!netif_running(dev))
+ return 0;
+
+ pci_set_power_state(pci_dev, PCI_D0);
+ pci_restore_state(pci_dev);
+
+ err = netdev_open(dev);
+ if (err) {
+ printk(KERN_ERR "%s: Can't resume interface!\n",
+ dev->name);
+ goto out;
}
+
+ netif_device_attach(dev);
+
+out:
+ return err;
}
+#endif /* CONFIG_PM */
+
static struct pci_driver sundance_driver = {
.name = DRV_NAME,
.id_table = sundance_pci_tbl,
.probe = sundance_probe1,
.remove = __devexit_p(sundance_remove1),
+#ifdef CONFIG_PM
+ .suspend = sundance_suspend,
+ .resume = sundance_resume,
+#endif /* CONFIG_PM */
};
static int __init sundance_init(void)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 07:38:08 +0000