[PATCH 7/7] net/hns3: fix unrelease some resources on reset case
Dengdui Huang
huangdengdui at huawei.com
Tue Apr 8 10:31:00 CEST 2025
Some resources, like, unmapping Rx interrupt, doesn't perform
when execute dev_stop on reset. This will lead to other issues.
Fixes: 2790c6464725 ("net/hns3: support device reset")
Cc: stable at dpdk.org
Signed-off-by: Dengdui Huang <huangdengdui at huawei.com>
---
drivers/net/hns3/hns3_ethdev.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 2d4e348442..9f99525e70 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -5219,20 +5219,23 @@ hns3_dev_stop(struct rte_eth_dev *dev)
struct hns3_hw *hw = &hns->hw;
PMD_INIT_FUNC_TRACE();
+ if (rte_atomic_load_explicit(&hw->reset.resetting, rte_memory_order_relaxed) != 0) {
+ hns3_warn(hw, "device is resetting, stop operation is not allowed.");
+ return -EBUSY;
+ }
+
dev->data->dev_started = 0;
hw->adapter_state = HNS3_NIC_STOPPING;
hns3_stop_rxtx_datapath(dev);
rte_spinlock_lock(&hw->lock);
- if (rte_atomic_load_explicit(&hw->reset.resetting, rte_memory_order_relaxed) == 0) {
- hns3_tm_dev_stop_proc(hw);
- hns3_config_mac_tnl_int(hw, false);
- hns3_stop_tqps(hw);
- hns3_do_stop(hns);
- hns3_unmap_rx_interrupt(dev);
- hw->adapter_state = HNS3_NIC_CONFIGURED;
- }
+ hns3_tm_dev_stop_proc(hw);
+ hns3_config_mac_tnl_int(hw, false);
+ hns3_stop_tqps(hw);
+ hns3_do_stop(hns);
+ hns3_unmap_rx_interrupt(dev);
+ hw->adapter_state = HNS3_NIC_CONFIGURED;
hns3_rx_scattered_reset(dev);
rte_eal_alarm_cancel(hns3_service_handler, dev);
hns3_stop_report_lse(dev);
--
2.33.0
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