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path: root/drivers/net/forcedeth.c
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Diffstat (limited to 'drivers/net/forcedeth.c')
-rw-r--r--drivers/net/forcedeth.c69
1 files changed, 38 insertions, 31 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 1938d6dfc863..24c1294614f2 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -159,6 +159,8 @@
#define dprintk(x...) do { } while (0)
#endif
+#define TX_WORK_PER_LOOP 64
+#define RX_WORK_PER_LOOP 64
/*
* Hardware access:
@@ -745,6 +747,9 @@ struct nv_skb_map {
struct fe_priv {
spinlock_t lock;
+ struct net_device *dev;
+ struct napi_struct napi;
+
/* General data:
* Locking: spin_lock(&np->lock); */
struct net_device_stats stats;
@@ -1586,9 +1591,10 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
static void nv_do_rx_refill(unsigned long data)
{
struct net_device *dev = (struct net_device *) data;
+ struct fe_priv *np = netdev_priv(dev);
/* Just reschedule NAPI rx processing */
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
}
#else
static void nv_do_rx_refill(unsigned long data)
@@ -2997,7 +3003,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
#ifdef CONFIG_FORCEDETH_NAPI
if (events & NVREG_IRQ_RX_ALL) {
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
/* Disable furthur receive irq's */
spin_lock(&np->lock);
@@ -3010,7 +3016,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
spin_unlock(&np->lock);
}
#else
- if (nv_rx_process(dev, dev->weight)) {
+ if (nv_rx_process(dev, RX_WORK_PER_LOOP)) {
if (unlikely(nv_alloc_rx(dev))) {
spin_lock(&np->lock);
if (!np->in_shutdown)
@@ -3079,8 +3085,6 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
return IRQ_RETVAL(i);
}
-#define TX_WORK_PER_LOOP 64
-#define RX_WORK_PER_LOOP 64
/**
* All _optimized functions are used to help increase performance
* (reduce CPU and increase throughput). They use descripter version 3,
@@ -3114,7 +3118,7 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
#ifdef CONFIG_FORCEDETH_NAPI
if (events & NVREG_IRQ_RX_ALL) {
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
/* Disable furthur receive irq's */
spin_lock(&np->lock);
@@ -3127,7 +3131,7 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
spin_unlock(&np->lock);
}
#else
- if (nv_rx_process_optimized(dev, dev->weight)) {
+ if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
if (unlikely(nv_alloc_rx_optimized(dev))) {
spin_lock(&np->lock);
if (!np->in_shutdown)
@@ -3245,19 +3249,19 @@ static irqreturn_t nv_nic_irq_tx(int foo, void *data)
}
#ifdef CONFIG_FORCEDETH_NAPI
-static int nv_napi_poll(struct net_device *dev, int *budget)
+static int nv_napi_poll(struct napi_struct *napi, int budget)
{
- int pkts, limit = min(*budget, dev->quota);
- struct fe_priv *np = netdev_priv(dev);
+ struct fe_priv *np = container_of(napi, struct fe_priv, napi);
+ struct net_device *dev = np->dev;
u8 __iomem *base = get_hwbase(dev);
unsigned long flags;
- int retcode;
+ int pkts, retcode;
if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
- pkts = nv_rx_process(dev, limit);
+ pkts = nv_rx_process(dev, budget);
retcode = nv_alloc_rx(dev);
} else {
- pkts = nv_rx_process_optimized(dev, limit);
+ pkts = nv_rx_process_optimized(dev, budget);
retcode = nv_alloc_rx_optimized(dev);
}
@@ -3268,13 +3272,12 @@ static int nv_napi_poll(struct net_device *dev, int *budget)
spin_unlock_irqrestore(&np->lock, flags);
}
- if (pkts < limit) {
- /* all done, no more packets present */
- netif_rx_complete(dev);
-
+ if (pkts < budget) {
/* re-enable receive interrupts */
spin_lock_irqsave(&np->lock, flags);
+ __netif_rx_complete(dev, napi);
+
np->irqmask |= NVREG_IRQ_RX_ALL;
if (np->msi_flags & NV_MSI_X_ENABLED)
writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
@@ -3282,13 +3285,8 @@ static int nv_napi_poll(struct net_device *dev, int *budget)
writel(np->irqmask, base + NvRegIrqMask);
spin_unlock_irqrestore(&np->lock, flags);
- return 0;
- } else {
- /* used up our quantum, so reschedule */
- dev->quota -= pkts;
- *budget -= pkts;
- return 1;
}
+ return pkts;
}
#endif
@@ -3296,6 +3294,7 @@ static int nv_napi_poll(struct net_device *dev, int *budget)
static irqreturn_t nv_nic_irq_rx(int foo, void *data)
{
struct net_device *dev = (struct net_device *) data;
+ struct fe_priv *np = netdev_priv(dev);
u8 __iomem *base = get_hwbase(dev);
u32 events;
@@ -3303,7 +3302,7 @@ static irqreturn_t nv_nic_irq_rx(int foo, void *data)
writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
if (events) {
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
/* disable receive interrupts on the nic */
writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
pci_push(base);
@@ -3329,7 +3328,7 @@ static irqreturn_t nv_nic_irq_rx(int foo, void *data)
if (!(events & np->irqmask))
break;
- if (nv_rx_process_optimized(dev, dev->weight)) {
+ if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
if (unlikely(nv_alloc_rx_optimized(dev))) {
spin_lock_irqsave(&np->lock, flags);
if (!np->in_shutdown)
@@ -4620,7 +4619,9 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
if (test->flags & ETH_TEST_FL_OFFLINE) {
if (netif_running(dev)) {
netif_stop_queue(dev);
- netif_poll_disable(dev);
+#ifdef CONFIG_FORCEDETH_NAPI
+ napi_disable(&np->napi);
+#endif
netif_tx_lock_bh(dev);
spin_lock_irq(&np->lock);
nv_disable_hw_interrupts(dev, np->irqmask);
@@ -4679,7 +4680,9 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
nv_start_rx(dev);
nv_start_tx(dev);
netif_start_queue(dev);
- netif_poll_enable(dev);
+#ifdef CONFIG_FORCEDETH_NAPI
+ napi_enable(&np->napi);
+#endif
nv_enable_hw_interrupts(dev, np->irqmask);
}
}
@@ -4911,7 +4914,9 @@ static int nv_open(struct net_device *dev)
nv_start_rx(dev);
nv_start_tx(dev);
netif_start_queue(dev);
- netif_poll_enable(dev);
+#ifdef CONFIG_FORCEDETH_NAPI
+ napi_enable(&np->napi);
+#endif
if (ret) {
netif_carrier_on(dev);
@@ -4942,7 +4947,9 @@ static int nv_close(struct net_device *dev)
spin_lock_irq(&np->lock);
np->in_shutdown = 1;
spin_unlock_irq(&np->lock);
- netif_poll_disable(dev);
+#ifdef CONFIG_FORCEDETH_NAPI
+ napi_disable(&np->napi);
+#endif
synchronize_irq(dev->irq);
del_timer_sync(&np->oom_kick);
@@ -4994,6 +5001,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
goto out;
np = netdev_priv(dev);
+ np->dev = dev;
np->pci_dev = pci_dev;
spin_lock_init(&np->lock);
SET_MODULE_OWNER(dev);
@@ -5155,9 +5163,8 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = nv_poll_controller;
#endif
- dev->weight = RX_WORK_PER_LOOP;
#ifdef CONFIG_FORCEDETH_NAPI
- dev->poll = nv_napi_poll;
+ netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
#endif
SET_ETHTOOL_OPS(dev, &ops);
dev->tx_timeout = nv_tx_timeout;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.