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yaml
---
r: 122762
b: refs/heads/master
c: 8c7396a
h: refs/heads/master
v: v3
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Dai Haruki authored and David S. Miller committed Dec 18, 2008
1 parent 204b35b commit 31055a0
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Showing 3 changed files with 20 additions and 43 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: c50a5d9aedef5b0b289d07f6d73934d394e50b3f
refs/heads/master: 8c7396aebb68994c0519e438eecdf4d5fa9c7844
59 changes: 18 additions & 41 deletions trunk/drivers/net/gianfar.c
Original file line number Diff line number Diff line change
Expand Up @@ -1604,29 +1604,19 @@ static int gfar_clean_tx_ring(struct net_device *dev)
return howmany;
}

/* Interrupt Handler for Transmit complete */
static irqreturn_t gfar_transmit(int irq, void *dev_id)
static void gfar_schedule_cleanup(struct net_device *dev)
{
struct net_device *dev = (struct net_device *) dev_id;
struct gfar_private *priv = netdev_priv(dev);

/* Clear IEVENT */
gfar_write(&priv->regs->ievent, IEVENT_TX_MASK);

/* Lock priv */
spin_lock(&priv->txlock);

gfar_clean_tx_ring(dev);

/* If we are coalescing the interrupts, reset the timer */
/* Otherwise, clear it */
if (likely(priv->txcoalescing)) {
gfar_write(&priv->regs->txic, 0);
gfar_write(&priv->regs->txic, priv->txic);
if (netif_rx_schedule_prep(dev, &priv->napi)) {
gfar_write(&priv->regs->imask, IMASK_RTX_DISABLED);
__netif_rx_schedule(dev, &priv->napi);
}
}

spin_unlock(&priv->txlock);

/* Interrupt Handler for Transmit complete */
static irqreturn_t gfar_transmit(int irq, void *dev_id)
{
gfar_schedule_cleanup((struct net_device *)dev_id);
return IRQ_HANDLED;
}

Expand Down Expand Up @@ -1713,28 +1703,7 @@ static inline void count_errors(unsigned short status, struct net_device *dev)

irqreturn_t gfar_receive(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct gfar_private *priv = netdev_priv(dev);
u32 tempval;

/* support NAPI */
/* Clear IEVENT, so interrupts aren't called again
* because of the packets that have already arrived */
gfar_write(&priv->regs->ievent, IEVENT_RTX_MASK);

if (netif_rx_schedule_prep(dev, &priv->napi)) {
tempval = gfar_read(&priv->regs->imask);
tempval &= IMASK_RTX_DISABLED;
gfar_write(&priv->regs->imask, tempval);

__netif_rx_schedule(dev, &priv->napi);
} else {
if (netif_msg_rx_err(priv))
printk(KERN_DEBUG "%s: receive called twice (%x)[%x]\n",
dev->name, gfar_read(&priv->regs->ievent),
gfar_read(&priv->regs->imask));
}

gfar_schedule_cleanup((struct net_device *)dev_id);
return IRQ_HANDLED;
}

Expand Down Expand Up @@ -1877,6 +1846,10 @@ static int gfar_poll(struct napi_struct *napi, int budget)
int howmany;
unsigned long flags;

/* Clear IEVENT, so interrupts aren't called again
* because of the packets that have already arrived */
gfar_write(&priv->regs->ievent, IEVENT_RTX_MASK);

/* If we fail to get the lock, don't bother with the TX BDs */
if (spin_trylock_irqsave(&priv->txlock, flags)) {
gfar_clean_tx_ring(dev);
Expand All @@ -1899,6 +1872,10 @@ static int gfar_poll(struct napi_struct *napi, int budget)
gfar_write(&priv->regs->rxic, 0);
gfar_write(&priv->regs->rxic, priv->rxic);
}
if (likely(priv->txcoalescing)) {
gfar_write(&priv->regs->txic, 0);
gfar_write(&priv->regs->txic, priv->txic);
}
}

return howmany;
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/net/gianfar.h
Original file line number Diff line number Diff line change
Expand Up @@ -251,7 +251,7 @@ extern const char gfar_driver_version[];
#define IEVENT_FIQ 0x00000004
#define IEVENT_DPE 0x00000002
#define IEVENT_PERR 0x00000001
#define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0)
#define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY)
#define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
#define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK)
#define IEVENT_ERR_MASK \
Expand Down

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