If LSC flag is changed to off last device start, the
enable flag is not cleared in HW.
This patch fixes it.
Fixes: c3cd3de0ab50 ("igb: enable Rx queue interrupts for PF")
Cc: sta...@dpdk.org
Signed-off-by: Jingjing Wu <jingjing...@intel.com>
---
drivers/net/e1000/igb_ethdev.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index da03d9b..e4f7a9f 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -138,7 +138,7 @@ static int eth_igb_flow_ctrl_get(struct rte_eth_dev *dev,
struct rte_eth_fc_conf *fc_conf);
static int eth_igb_flow_ctrl_set(struct rte_eth_dev *dev,
struct rte_eth_fc_conf *fc_conf);
-static int eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev);
+static int eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on);
static int eth_igb_rxq_interrupt_setup(struct rte_eth_dev *dev);
static int eth_igb_interrupt_get_status(struct rte_eth_dev *dev);
static int eth_igb_interrupt_action(struct rte_eth_dev *dev,
@@ -1472,7 +1472,9 @@ eth_igb_start(struct rte_eth_dev *dev)
if (rte_intr_allow_others(intr_handle)) {
/* check if lsc interrupt is enabled */
if (dev->data->dev_conf.intr_conf.lsc != 0)
- eth_igb_lsc_interrupt_setup(dev);
+ eth_igb_lsc_interrupt_setup(dev, TRUE);
+ else
+ eth_igb_lsc_interrupt_setup(dev, FALSE);
} else {
rte_intr_callback_unregister(intr_handle,
eth_igb_interrupt_handler,
@@ -2744,18 +2746,23 @@ eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int
mask)
*
* @param dev
* Pointer to struct rte_eth_dev.
+ * @param on
+ * Enable or Disable
*
* @return
* - On success, zero.
* - On failure, a negative value.
*/
static int
-eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev)
+eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on)
{
struct e1000_interrupt *intr =
E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
- intr->mask |= E1000_ICR_LSC;
+ if (on)
+ intr->mask |= E1000_ICR_LSC;
+ else
+ intr->mask &= ~E1000_ICR_LSC;
return 0;
}
--
2.4.11
