[dpdk-dev] [PATCH v4 3/6] fm10k: remove rx queue interrupts when dev stops
Shaopeng He
shaopeng.he at intel.com
Mon Dec 21 11:19:49 CET 2015
Previous dev_stop function stops the rx/tx queues. This patch adds logic
to disable rx queue interrupt, clean the datapath event and queue/vec map.
Signed-off-by: Shaopeng He <shaopeng.he at intel.com>
Acked-by: Jing Chen <jing.d.chen at intel.com>
---
drivers/net/fm10k/fm10k_ethdev.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index a34c5e2..b5b809c 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1125,6 +1125,8 @@ 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();
@@ -1136,6 +1138,26 @@ 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);
+ if (intr_handle->intr_vec != NULL) {
+ rte_free(intr_handle->intr_vec);
+ intr_handle->intr_vec = NULL;
+ }
}
static void
--
1.9.3
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