aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/pcnet32.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/net/pcnet32.c82
1 files changed, 47 insertions, 35 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index e6a67531de99..a9973490dba9 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -280,6 +280,8 @@ struct pcnet32_private {
unsigned int dirty_rx, /* ring entries to be freed. */
dirty_tx;
+ struct net_device *dev;
+ struct napi_struct napi;
struct net_device_stats stats;
char tx_full;
char phycount; /* number of phys found */
@@ -440,15 +442,21 @@ static struct pcnet32_access pcnet32_dwio = {
static void pcnet32_netif_stop(struct net_device *dev)
{
+ struct pcnet32_private *lp = netdev_priv(dev);
dev->trans_start = jiffies;
- netif_poll_disable(dev);
+#ifdef CONFIG_PCNET32_NAPI
+ napi_disable(&lp->napi);
+#endif
netif_tx_disable(dev);
}
static void pcnet32_netif_start(struct net_device *dev)
{
+ struct pcnet32_private *lp = netdev_priv(dev);
netif_wake_queue(dev);
- netif_poll_enable(dev);
+#ifdef CONFIG_PCNET32_NAPI
+ napi_enable(&lp->napi);
+#endif
}
/*
@@ -816,7 +824,7 @@ static int pcnet32_set_ringparam(struct net_device *dev,
if ((1 << i) != lp->rx_ring_size)
pcnet32_realloc_rx_ring(dev, lp, i);
- dev->weight = lp->rx_ring_size / 2;
+ lp->napi.weight = lp->rx_ring_size / 2;
if (netif_running(dev)) {
pcnet32_netif_start(dev);
@@ -1255,7 +1263,7 @@ static void pcnet32_rx_entry(struct net_device *dev,
return;
}
-static int pcnet32_rx(struct net_device *dev, int quota)
+static int pcnet32_rx(struct net_device *dev, int budget)
{
struct pcnet32_private *lp = netdev_priv(dev);
int entry = lp->cur_rx & lp->rx_mod_mask;
@@ -1263,7 +1271,7 @@ static int pcnet32_rx(struct net_device *dev, int quota)
int npackets = 0;
/* If we own the next entry, it's a new packet. Send it up. */
- while (quota > npackets && (short)le16_to_cpu(rxp->status) >= 0) {
+ while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) {
pcnet32_rx_entry(dev, lp, rxp, entry);
npackets += 1;
/*
@@ -1379,15 +1387,16 @@ static int pcnet32_tx(struct net_device *dev)
}
#ifdef CONFIG_PCNET32_NAPI
-static int pcnet32_poll(struct net_device *dev, int *budget)
+static int pcnet32_poll(struct napi_struct *napi, int budget)
{
- struct pcnet32_private *lp = netdev_priv(dev);
- int quota = min(dev->quota, *budget);
+ struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi);
+ struct net_device *dev = lp->dev;
unsigned long ioaddr = dev->base_addr;
unsigned long flags;
+ int work_done;
u16 val;
- quota = pcnet32_rx(dev, quota);
+ work_done = pcnet32_rx(dev, budget);
spin_lock_irqsave(&lp->lock, flags);
if (pcnet32_tx(dev)) {
@@ -1399,28 +1408,22 @@ static int pcnet32_poll(struct net_device *dev, int *budget)
}
spin_unlock_irqrestore(&lp->lock, flags);
- *budget -= quota;
- dev->quota -= quota;
-
- if (dev->quota == 0) {
- return 1;
- }
-
- netif_rx_complete(dev);
-
- spin_lock_irqsave(&lp->lock, flags);
+ if (work_done < budget) {
+ spin_lock_irqsave(&lp->lock, flags);
- /* clear interrupt masks */
- val = lp->a.read_csr(ioaddr, CSR3);
- val &= 0x00ff;
- lp->a.write_csr(ioaddr, CSR3, val);
+ __netif_rx_complete(dev, napi);
- /* Set interrupt enable. */
- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
- mmiowb();
- spin_unlock_irqrestore(&lp->lock, flags);
+ /* clear interrupt masks */
+ val = lp->a.read_csr(ioaddr, CSR3);
+ val &= 0x00ff;
+ lp->a.write_csr(ioaddr, CSR3, val);
- return 0;
+ /* Set interrupt enable. */
+ lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
+ mmiowb();
+ spin_unlock_irqrestore(&lp->lock, flags);
+ }
+ return work_done;
}
#endif
@@ -1815,6 +1818,8 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
}
lp->pci_dev = pdev;
+ lp->dev = dev;
+
spin_lock_init(&lp->lock);
SET_MODULE_OWNER(dev);
@@ -1843,6 +1848,10 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
lp->mii_if.mdio_read = mdio_read;
lp->mii_if.mdio_write = mdio_write;
+#ifdef CONFIG_PCNET32_NAPI
+ netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2);
+#endif
+
if (fdx && !(lp->options & PCNET32_PORT_ASEL) &&
((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
lp->options |= PCNET32_PORT_FD;
@@ -1953,10 +1962,6 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
dev->ethtool_ops = &pcnet32_ethtool_ops;
dev->tx_timeout = pcnet32_tx_timeout;
dev->watchdog_timeo = (5 * HZ);
- dev->weight = lp->rx_ring_size / 2;
-#ifdef CONFIG_PCNET32_NAPI
- dev->poll = pcnet32_poll;
-#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = pcnet32_poll_controller;
@@ -2276,6 +2281,10 @@ static int pcnet32_open(struct net_device *dev)
goto err_free_ring;
}
+#ifdef CONFIG_PCNET32_NAPI
+ napi_enable(&lp->napi);
+#endif
+
/* Re-initialize the PCNET32, and start it when done. */
lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
@@ -2599,18 +2608,18 @@ pcnet32_interrupt(int irq, void *dev_id)
/* unlike for the lance, there is no restart needed */
}
#ifdef CONFIG_PCNET32_NAPI
- if (netif_rx_schedule_prep(dev)) {
+ if (netif_rx_schedule_prep(dev, &lp->napi)) {
u16 val;
/* set interrupt masks */
val = lp->a.read_csr(ioaddr, CSR3);
val |= 0x5f00;
lp->a.write_csr(ioaddr, CSR3, val);
mmiowb();
- __netif_rx_schedule(dev);
+ __netif_rx_schedule(dev, &lp->napi);
break;
}
#else
- pcnet32_rx(dev, dev->weight);
+ pcnet32_rx(dev, lp->napi.weight);
if (pcnet32_tx(dev)) {
/* reset the chip to clear the error condition, then restart */
lp->a.reset(ioaddr);
@@ -2645,6 +2654,9 @@ static int pcnet32_close(struct net_device *dev)
del_timer_sync(&lp->watchdog_timer);
netif_stop_queue(dev);
+#ifdef CONFIG_PCNET32_NAPI
+ napi_disable(&lp->napi);
+#endif
spin_lock_irqsave(&lp->lock, flags);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.