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atl1: do not process interrupts in cycle in handler 

As the rx/tx handled inside napi handler, the cycle is
not needed now, because only the rx/tx need such kind of
processing.

Signed-off-by: Tony Zelenoff <antonz@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tony Zelenoff 2012-04-13 06:09:53 +00:00 committed by David S. Miller
parent 73650f28ae
commit 2a9bc71e9a
2 changed files with 49 additions and 54 deletions
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99
drivers/net/ethernet/atheros/atlx/atl1.c
View File

@ -2499,77 +2499,68 @@ static irqreturn_t atl1_intr(int irq, void *data)
{
struct atl1_adapter *adapter = netdev_priv(data);
u32 status;
int max_ints = 10;
status = adapter->cmb.cmb->int_stats;
if (!status)
return IRQ_NONE;
do {
/* clear CMB interrupt status at once */
adapter->cmb.cmb->int_stats = 0;
/* clear CMB interrupt status at once */
adapter->cmb.cmb->int_stats = 0;
if (status & ISR_GPHY) /* clear phy status */
atlx_clear_phy_int(adapter);
if (status & ISR_GPHY) /* clear phy status */
atlx_clear_phy_int(adapter);
/* clear ISR status, and Enable CMB DMA/Disable Interrupt */
iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
/* clear ISR status, and Enable CMB DMA/Disable Interrupt */
iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
/* check if SMB intr */
if (status & ISR_SMB)
atl1_inc_smb(adapter);
/* check if SMB intr */
if (status & ISR_SMB)
atl1_inc_smb(adapter);
/* check if PCIE PHY Link down */
if (status & ISR_PHY_LINKDOWN) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG, &adapter->pdev->dev,
"pcie phy link down %x\n", status);
if (netif_running(adapter->netdev)) { /* reset MAC */
atlx_irq_disable(adapter);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
}
}
/* check if DMA read/write error ? */
if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG, &adapter->pdev->dev,
"pcie DMA r/w error (status = 0x%x)\n",
status);
/* check if PCIE PHY Link down */
if (status & ISR_PHY_LINKDOWN) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG, &adapter->pdev->dev,
"pcie phy link down %x\n", status);
if (netif_running(adapter->netdev)) { /* reset MAC */
atlx_irq_disable(adapter);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
}
}
/* link event */
if (status & ISR_GPHY) {
adapter->soft_stats.tx_carrier_errors++;
atl1_check_for_link(adapter);
}
/* check if DMA read/write error ? */
if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG, &adapter->pdev->dev,
"pcie DMA r/w error (status = 0x%x)\n",
status);
atlx_irq_disable(adapter);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
}
/* transmit or receive event */
if (status & (ISR_CMB_TX | ISR_CMB_RX) &&
atl1_sched_rings_clean(adapter))
break;
/* link event */
if (status & ISR_GPHY) {
adapter->soft_stats.tx_carrier_errors++;
atl1_check_for_link(adapter);
}
/* rx exception */
if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
ISR_HOST_RRD_OV))) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG,
&adapter->pdev->dev,
"rx exception, ISR = 0x%x\n",
status);
if (atl1_sched_rings_clean(adapter))
break;
}
/* transmit or receive event */
if (status & (ISR_CMB_TX | ISR_CMB_RX))
atl1_sched_rings_clean(adapter);
if (--max_ints < 0)
break;
} while ((status = adapter->cmb.cmb->int_stats));
/* rx exception */
if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
ISR_HOST_RRD_OV))) {
if (netif_msg_intr(adapter))
dev_printk(KERN_DEBUG,
&adapter->pdev->dev,
"rx exception, ISR = 0x%x\n",
status);
atl1_sched_rings_clean(adapter);
}
/* re-enable Interrupt */
iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);

4
scripts/mod/file2alias.c
View File

@ -1100,6 +1100,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
return;
/* We're looking for an object */
if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
return;
/* All our symbols are of form <prefix>__mod_XXX_device_table. */
name = strstr(symname, "__mod_");
if (!name)