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| author | Francois Romieu <romieu@fr.zoreil.com> | 2011-12-30 14:53:58 +0100 |
|---|---|---|
| committer | Francois Romieu <romieu@fr.zoreil.com> | 2012-01-07 23:02:37 +0100 |
| commit | a20a28bc321fefcc23f8da7ce3722e6ae7a7199d (patch) | |
| tree | 5263e0cb361abefaa1ed6e20801a23f441436a08 /drivers/net | |
| parent | via-rhine: factor out tx_thresh handling (diff) | |
| download | linux-a20a28bc321fefcc23f8da7ce3722e6ae7a7199d.tar.xz linux-a20a28bc321fefcc23f8da7ce3722e6ae7a7199d.zip | |
via-rhine: balance interrupt acknowledge and events retrieval.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/via/via-rhine.c | 22 |
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) { |