summaryrefslogtreecommitdiff
path: root/drivers/net/i40e/i40e_rxtx_vec_common.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/i40e/i40e_rxtx_vec_common.h')
-rw-r--r--drivers/net/i40e/i40e_rxtx_vec_common.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/i40e/i40e_rxtx_vec_common.h b/drivers/net/i40e/i40e_rxtx_vec_common.h
index f00f6d6..0e6ffa0 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_common.h
+++ b/drivers/net/i40e/i40e_rxtx_vec_common.h
@@ -192,8 +192,13 @@ static inline int
i40e_rx_vec_dev_conf_condition_check_default(struct rte_eth_dev *dev)
{
#ifndef RTE_LIBRTE_IEEE1588
+ struct i40e_adapter *ad =
+ I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf;
+ struct i40e_rx_queue *rxq;
+ uint16_t desc, i;
+ bool first_queue;
/* no fdir support */
if (fconf->mode != RTE_FDIR_MODE_NONE)
@@ -207,6 +212,39 @@ i40e_rx_vec_dev_conf_condition_check_default(struct rte_eth_dev *dev)
if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)
return -1;
+ /**
+ * Vector mode is allowed only when number of Rx queue
+ * descriptor is power of 2.
+ */
+ if (!dev->data->dev_started) {
+ first_queue = true;
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ if (!rxq)
+ continue;
+ desc = rxq->nb_rx_desc;
+ if (first_queue)
+ ad->rx_vec_allowed =
+ rte_is_power_of_2(desc);
+ else
+ ad->rx_vec_allowed =
+ ad->rx_vec_allowed ?
+ rte_is_power_of_2(desc) :
+ ad->rx_vec_allowed;
+ first_queue = false;
+ }
+ } else {
+ /* Only check the first queue's descriptor number */
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ if (!rxq)
+ continue;
+ desc = rxq->nb_rx_desc;
+ ad->rx_vec_allowed = rte_is_power_of_2(desc);
+ break;
+ }
+ }
+
return 0;
#else
RTE_SET_USED(dev);