[dpdk-dev] [PATCH v1 03/24] net/ena: add interrupt handler for admin queue
Michal Krawczyk
mk at semihalf.com
Wed May 9 14:45:47 CEST 2018
The ENA device is able to send MSI-X when it will complete an command
when polling mode is deactivated. Further, the same interrupt handler
will be used for the AENQ handling - services of the ENA device, that
allows to implement watchdog or lsc handler.
Signed-off-by: Michal Krawczyk <mk at semihalf.com>
---
drivers/net/ena/ena_ethdev.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 81e36b1ef..ec0380f0a 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -250,6 +250,7 @@ static bool ena_are_tx_queue_offloads_allowed(struct ena_adapter *adapter,
uint64_t offloads);
static bool ena_are_rx_queue_offloads_allowed(struct ena_adapter *adapter,
uint64_t offloads);
+static void ena_interrupt_handler_rte(void *cb_arg);
static const struct eth_dev_ops ena_dev_ops = {
.dev_configure = ena_dev_configure,
@@ -463,9 +464,16 @@ static void ena_close(struct rte_eth_dev *dev)
{
struct ena_adapter *adapter =
(struct ena_adapter *)(dev->data->dev_private);
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+ struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
adapter->state = ENA_ADAPTER_STATE_STOPPED;
+ rte_intr_disable(intr_handle);
+ rte_intr_callback_unregister(intr_handle,
+ ena_interrupt_handler_rte,
+ adapter);
+
ena_rx_queue_release_all(dev);
ena_tx_queue_release_all(dev);
}
@@ -912,6 +920,8 @@ static int ena_start(struct rte_eth_dev *dev)
{
struct ena_adapter *adapter =
(struct ena_adapter *)(dev->data->dev_private);
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+ struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
int rc = 0;
if (!(adapter->state == ENA_ADAPTER_STATE_CONFIG ||
@@ -941,6 +951,11 @@ static int ena_start(struct rte_eth_dev *dev)
ena_stats_restart(dev);
+ rte_intr_callback_register(intr_handle,
+ ena_interrupt_handler_rte,
+ adapter);
+ rte_intr_enable(intr_handle);
+
adapter->state = ENA_ADAPTER_STATE_RUNNING;
return 0;
@@ -1306,6 +1321,14 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
return rc;
}
+static void ena_interrupt_handler_rte(__rte_unused void *cb_arg)
+{
+ struct ena_adapter *adapter = (struct ena_adapter *)cb_arg;
+ struct ena_com_dev *ena_dev = &adapter->ena_dev;
+
+ ena_com_admin_q_comp_intr_handler(ena_dev);
+}
+
static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
{
struct rte_pci_device *pci_dev;
--
2.14.1
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