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authorFrancois Romieu <romieu@fr.zoreil.com>2011-12-30 17:53:58 +0400
committerFrancois Romieu <romieu@fr.zoreil.com>2012-01-08 02:02:37 +0400
commita20a28bc321fefcc23f8da7ce3722e6ae7a7199d (patch)
tree5263e0cb361abefaa1ed6e20801a23f441436a08 /drivers/net/ethernet/via/via-rhine.c
parent269f3114b53a3ce93eb5977852ac2624a380f600 (diff)
downloadlinux-a20a28bc321fefcc23f8da7ce3722e6ae7a7199d.tar.xz
via-rhine: balance interrupt acknowledge and events retrieval.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Diffstat (limited to 'drivers/net/ethernet/via/via-rhine.c')
-rw-r--r--drivers/net/ethernet/via/via-rhine.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 93987e84be18..716fd423670d 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -508,9 +508,8 @@ do { \
1024 - i, __func__, __LINE__); \
} while (0)
-static inline u32 get_intr_status(struct net_device *dev)
+static u32 rhine_get_events(struct rhine_private *rp)
{
- struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
u32 intr_status;
@@ -521,6 +520,16 @@ static inline u32 get_intr_status(struct net_device *dev)
return intr_status;
}
+static void rhine_ack_events(struct rhine_private *rp, u32 mask)
+{
+ void __iomem *ioaddr = rp->base;
+
+ if (rp->quirks & rqStatusWBRace)
+ iowrite8(mask >> 16, ioaddr + IntrStatus2);
+ iowrite16(mask, ioaddr + IntrStatus);
+ IOSYNC;
+}
+
/*
* Get power related registers into sane state.
* Notify user about past WOL event.
@@ -1580,14 +1589,11 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance)
int boguscnt = max_interrupt_work;
int handled = 0;
- while ((intr_status = get_intr_status(dev))) {
+ while ((intr_status = rhine_get_events(rp))) {
handled = 1;
/* Acknowledge all of the current interrupt sources ASAP. */
- if (intr_status & IntrTxDescRace)
- iowrite8(0x08, ioaddr + IntrStatus2);
- iowrite16(intr_status & 0xffff, ioaddr + IntrStatus);
- IOSYNC;
+ rhine_ack_events(rp, intr_status);
if (debug > 4)
netdev_dbg(dev, "Interrupt, status %08x\n",
@@ -1872,7 +1878,7 @@ static void rhine_restart_tx(struct net_device *dev) {
* If new errors occurred, we need to sort them out before doing Tx.
* In that case the ISR will be back here RSN anyway.
*/
- intr_status = get_intr_status(dev);
+ intr_status = rhine_get_events(rp);
if ((intr_status & IntrTxErrSummary) == 0) {