fm10k: remove Rx queue interrupts when stopping

Previous dev_stop function stops the rx/tx queues. This patch adds logic
to disable rx queue interrupt, clean the datapath event and queue/vector
map.

Signed-off-by: Shaopeng He <shaopeng.he@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
Acked-by: Michael Qiu <michael.qiu@intel.com>

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index 201c08d..af86277 100644 (file)
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1131,6 +1131,8 @@ fm10k_dev_start(struct rte_eth_dev *dev)
 static void
 fm10k_dev_stop(struct rte_eth_dev *dev)
 {
+       struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
        int i;
 
        PMD_INIT_FUNC_TRACE();
@@ -1142,6 +1144,24 @@ fm10k_dev_stop(struct rte_eth_dev *dev)
        if (dev->data->rx_queues)
                for (i = 0; i < dev->data->nb_rx_queues; i++)
                        fm10k_dev_rx_queue_stop(dev, i);
+
+       /* Disable datapath event */
+       if (rte_intr_dp_is_en(intr_handle)) {
+               for (i = 0; i < dev->data->nb_rx_queues; i++) {
+                       FM10K_WRITE_REG(hw, FM10K_RXINT(i),
+                               3 << FM10K_RXINT_TIMER_SHIFT);
+                       if (hw->mac.type == fm10k_mac_pf)
+                               FM10K_WRITE_REG(hw, FM10K_ITR(Q2V(dev, i)),
+                                       FM10K_ITR_MASK_SET);
+                       else
+                               FM10K_WRITE_REG(hw, FM10K_VFITR(Q2V(dev, i)),
+                                       FM10K_ITR_MASK_SET);
+               }
+       }
+       /* Clean datapath event and queue/vec mapping */
+       rte_intr_efd_disable(intr_handle);
+       rte_free(intr_handle->intr_vec);
+       intr_handle->intr_vec = NULL;
 }
 
 static void