From: Rafal Kozik <rk@semihalf.com>
Add variable wd_state to make driver functional without keep alive
AENQ handler.
The watchdog will be executed only if the aenq group has keep alive
enabled.
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
drivers/net/ena/ena_ethdev.c | 19 +++++++++++++++----
drivers/net/ena/ena_ethdev.h | 2 ++
2 files changed, 17 insertions(+), 4 deletions(-)
@@ -204,7 +204,8 @@ static const struct rte_pci_id pci_id_ena_map[] = {
static struct ena_aenq_handlers aenq_handlers;
static int ena_device_init(struct ena_com_dev *ena_dev,
- struct ena_com_dev_get_features_ctx *get_feat_ctx);
+ struct ena_com_dev_get_features_ctx *get_feat_ctx,
+ bool *wd_state);
static int ena_dev_configure(struct rte_eth_dev *dev);
static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
@@ -485,6 +486,7 @@ ena_dev_reset(struct rte_eth_dev *dev)
struct ena_adapter *adapter;
int nb_queues;
int rc, i;
+ bool wd_state;
adapter = (struct ena_adapter *)(dev->data->dev_private);
ena_dev = &adapter->ena_dev;
@@ -510,11 +512,12 @@ ena_dev_reset(struct rte_eth_dev *dev)
ena_com_admin_destroy(ena_dev);
ena_com_mmio_reg_read_request_destroy(ena_dev);
- rc = ena_device_init(ena_dev, &get_feat_ctx);
+ rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state);
if (rc) {
PMD_INIT_LOG(CRIT, "Cannot initialize device\n");
return rc;
}
+ adapter->wd_state = wd_state;
rte_intr_enable(intr_handle);
ena_com_set_admin_polling_mode(ena_dev, false);
@@ -1309,7 +1312,8 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
}
static int ena_device_init(struct ena_com_dev *ena_dev,
- struct ena_com_dev_get_features_ctx *get_feat_ctx)
+ struct ena_com_dev_get_features_ctx *get_feat_ctx,
+ bool *wd_state)
{
uint32_t aenq_groups;
int rc;
@@ -1381,6 +1385,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
goto err_admin_init;
}
+ *wd_state = !!(aenq_groups & BIT(ENA_ADMIN_KEEP_ALIVE));
+
return 0;
err_admin_init:
@@ -1404,6 +1410,9 @@ static void ena_interrupt_handler_rte(void *cb_arg)
static void check_for_missing_keep_alive(struct ena_adapter *adapter)
{
+ if (!adapter->wd_state)
+ return;
+
if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT)
return;
@@ -1452,6 +1461,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
int queue_size, rc;
static int adapters_found;
+ bool wd_state;
memset(adapter, 0, sizeof(struct ena_adapter));
ena_dev = &adapter->ena_dev;
@@ -1495,11 +1505,12 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
adapter->id_number);
/* device specific initialization routine */
- rc = ena_device_init(ena_dev, &get_feat_ctx);
+ rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state);
if (rc) {
PMD_INIT_LOG(CRIT, "Failed to init ENA device");
return -1;
}
+ adapter->wd_state = wd_state;
ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
adapter->num_queues = get_feat_ctx.max_queues.max_sq_num;
@@ -196,6 +196,8 @@ struct ena_adapter {
uint64_t keep_alive_timeout;
bool trigger_reset;
+
+ bool wd_state;
};
#endif /* _ENA_ETHDEV_H_ */