diff options
| -rw-r--r-- | drivers/net/ethernet/atheros/atlx/atl1.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index 066b980cc2f..7f1e498c3c0 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -2504,8 +2504,12 @@ static irqreturn_t atl1_intr(int irq, void *data) if (!status) return IRQ_NONE; - /* clear CMB interrupt status at once */ - adapter->cmb.cmb->int_stats = 0; + /* clear CMB interrupt status at once, + * but leave rx/tx interrupt status in case it should be dropped + * only if rx/tx processing queued. In other case interrupt + * can be lost. + */ + adapter->cmb.cmb->int_stats = status & (ISR_CMB_TX | ISR_CMB_RX); if (status & ISR_GPHY) /* clear phy status */ atlx_clear_phy_int(adapter); @@ -2547,8 +2551,10 @@ static irqreturn_t atl1_intr(int irq, void *data) } /* transmit or receive event */ - if (status & (ISR_CMB_TX | ISR_CMB_RX)) - atl1_sched_rings_clean(adapter); + if (status & (ISR_CMB_TX | ISR_CMB_RX) && + atl1_sched_rings_clean(adapter)) + adapter->cmb.cmb->int_stats = adapter->cmb.cmb->int_stats & + ~(ISR_CMB_TX | ISR_CMB_RX); /* rx exception */ if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN | |