[PATCH v2 09/10] net/txgbe: fix interrupt loss

[Jiawen Wu]

Disable interrupt in the interrupt handling process will sometimes cause
interrupts to be lost.

Fixes: 2fc745e6b606 ("net/txgbe: add interrupt operation")
Cc: stable at dpdk.org

Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
 drivers/net/txgbe/txgbe_ethdev.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index ce7cf2506d..6e939b8ce3 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -2972,9 +2972,6 @@ txgbe_dev_interrupt_get_status(struct rte_eth_dev *dev,
 		rte_intr_type_get(intr_handle) != RTE_INTR_HANDLE_VFIO_MSIX)
 		wr32(hw, TXGBE_PX_INTA, 1);
 
-	/* clear all cause mask */
-	txgbe_disable_intr(hw);
-
 	/* read-on-clear nic registers here */
 	eicr = ((u32 *)hw->isb_mem)[TXGBE_ISB_MISC];
 	PMD_DRV_LOG(DEBUG, "eicr %x", eicr);
@@ -3000,6 +2997,8 @@ txgbe_dev_interrupt_get_status(struct rte_eth_dev *dev,
 	if (eicr & TXGBE_ICRMISC_HEAT)
 		intr->flags |= TXGBE_FLAG_OVERHEAT;
 
+	((u32 *)hw->isb_mem)[TXGBE_ISB_MISC] = 0;
+
 	return 0;
 }
 
-- 
2.27.0