[PATCH] sh_eth: Change handling of IRQ
From: Nobuhiro Iwamatsu <hidden>
Date: 2009-03-17 05:50:57
Also in:
linux-sh
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Handling of IRQ of the SH7763/SH7764 CPU which sh_eth supported was changed. This revises it for this change. Signed-off-by: Nobuhiro Iwamatsu <redacted> --- drivers/net/sh_eth.c | 20 +++++++++++++++++--- 1 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 7f8e514..7b18827 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c@@ -687,6 +687,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) { struct net_device *ndev = netdev; struct sh_eth_private *mdp = netdev_priv(ndev); + irqreturn_t ret = IRQ_NONE; u32 ioaddr, boguscnt = RX_RING_SIZE; u32 intr_status = 0;
@@ -696,7 +697,13 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) /* Get interrpt stat */ intr_status = ctrl_inl(ioaddr + EESR); /* Clear interrupt */ - ctrl_outl(intr_status, ioaddr + EESR); + if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF | + EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF | + TX_CHECK | EESR_ERR_CHECK)) { + ctrl_outl(intr_status, ioaddr + EESR); + ret = IRQ_HANDLED; + } else + goto other_irq; if (intr_status & (EESR_FRC | /* Frame recv*/ EESR_RMAF | /* Multi cast address recv*/
@@ -723,9 +730,10 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) ndev->name, intr_status); } +other_irq: spin_unlock(&mdp->lock); - return IRQ_HANDLED; + return ret; } static void sh_eth_timer(unsigned long data)
@@ -844,7 +852,13 @@ static int sh_eth_open(struct net_device *ndev) int ret = 0; struct sh_eth_private *mdp = netdev_priv(ndev); - ret = request_irq(ndev->irq, &sh_eth_interrupt, 0, ndev->name, ndev); + ret = request_irq(ndev->irq, &sh_eth_interrupt, +#if defined(CONFIG_CPU_SUBTYPE_SH7763) || defined(CONFIG_CPU_SUBTYPE_SH7764) + IRQF_SHARED, +#else + 0, +#endif + ndev->name, ndev); if (ret) { printk(KERN_ERR "Can not assign IRQ number to %s\n", CARDNAME); return ret;
--
1.6.2