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net/ena: add interrupt handler for admin queue

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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@semihalf.com>
This commit is contained in:
Michal Krawczyk 2018-06-07 11:42:59 +02:00 committed by Ferruh Yigit
parent 1d339597a1
commit 15773e063f
1 changed files with 23 additions and 0 deletions
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23
drivers/net/ena/ena_ethdev.c
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@ -246,6 +246,7 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev,
struct rte_eth_rss_reta_entry64 *reta_conf,
uint16_t reta_size);
static int ena_get_sset_count(struct rte_eth_dev *dev, int sset);
static void ena_interrupt_handler_rte(void *cb_arg);
static const struct eth_dev_ops ena_dev_ops = {
.dev_configure = ena_dev_configure,
@ -459,9 +460,16 @@ 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);
}
@ -908,6 +916,8 @@ 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 ||
@ -937,6 +947,11 @@ 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;
@ -1291,6 +1306,14 @@ err_mmio_read_less:
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;