[V3,5/6] net/hns3: fix queue enabling state not store after FLR
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Commit Message
From: Chengchang Tang <tangchengchang@huawei.com>
FLR operation will reset the queue enabling state and
the driver needs to restore the state after reset. As
a result, it will result in unpredictable behavior with
reseted when user start or stop queue by calling the
relatived function if the driver does not do this.
This patch fix it by add a queue enabling state restore
function to the reset handler.
Fixes: fa29fe45a7b4 ("net/hns3: support queue start and stop")
Cc: stable@dpdk.org
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
---
V2->V3:
- rewrite commit log
V1->V2:
- no fix
---
drivers/net/hns3/hns3_ethdev.c | 5 +++++
drivers/net/hns3/hns3_ethdev_vf.c | 5 +++++
drivers/net/hns3/hns3_rxtx.c | 20 ++++++++++++++++++++
drivers/net/hns3/hns3_rxtx.h | 1 +
4 files changed, 31 insertions(+)
@@ -5571,6 +5571,11 @@ hns3_start_service(struct hns3_adapter *hns)
/* Enable interrupt of all rx queues before enabling queues */
hns3_dev_all_rx_queue_intr_enable(hw, true);
/*
+ * Enable state of each rxq and txq will be recovered after
+ * reset, so we need to restore them before enable all tqps;
+ */
+ hns3_restore_tqp_enable_state(hw);
+ /*
* When finished the initialization, enable queues to receive
* and transmit packets.
*/
@@ -2424,6 +2424,11 @@ hns3vf_start_service(struct hns3_adapter *hns)
/* Enable interrupt of all rx queues before enabling queues */
hns3_dev_all_rx_queue_intr_enable(hw, true);
/*
+ * Enable state of each rxq and txq will be recovered after
+ * reset, so we need to restore them before enable all tqps;
+ */
+ hns3_restore_tqp_enable_state(hw);
+ /*
* When finished the initialization, enable queues to receive
* and transmit packets.
*/
@@ -503,6 +503,26 @@ hns3_start_all_rxqs(struct rte_eth_dev *dev)
}
void
+hns3_restore_tqp_enable_state(struct hns3_hw *hw)
+{
+ struct hns3_rx_queue *rxq;
+ struct hns3_tx_queue *txq;
+ uint16_t i;
+
+ for (i = 0; i < hw->data->nb_rx_queues; i++) {
+ rxq = hw->data->rx_queues[i];
+ if (rxq != NULL)
+ hns3_enable_rxq(rxq, rxq->enabled);
+ }
+
+ for (i = 0; i < hw->data->nb_tx_queues; i++) {
+ txq = hw->data->tx_queues[i];
+ if (txq != NULL)
+ hns3_enable_txq(txq, txq->enabled);
+ }
+}
+
+void
hns3_stop_all_txqs(struct rte_eth_dev *dev)
{
struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -677,5 +677,6 @@ uint32_t hns3_get_tqp_reg_offset(uint16_t idx);
int hns3_start_all_txqs(struct rte_eth_dev *dev);
int hns3_start_all_rxqs(struct rte_eth_dev *dev);
void hns3_stop_all_txqs(struct rte_eth_dev *dev);
+void hns3_restore_tqp_enable_state(struct hns3_hw *hw);
#endif /* _HNS3_RXTX_H_ */