[1/4] net/hns3: decrease the count when secondary process exits
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Commit Message
From: Huisong Li <lihuisong@huawei.com>
The "secondary_cnt" will be increased when a secondary process initialized.
But the value of this variable is not decreased when the secondary process
exits, which causes the primary process senses that the secondary process
still exists. As a result, the primary process fails to send messages to
the secondary process after the secondary process exits.
Fixes: 23d4b61fee5d ("net/hns3: support multiple process")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
drivers/net/hns3/hns3_ethdev.c | 10 +++++++---
drivers/net/hns3/hns3_ethdev_vf.c | 10 +++++++---
drivers/net/hns3/hns3_mp.c | 4 +++-
3 files changed, 17 insertions(+), 7 deletions(-)
@@ -5849,8 +5849,10 @@ hns3_dev_close(struct rte_eth_dev *eth_dev)
struct hns3_hw *hw = &hns->hw;
int ret = 0;
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ __atomic_fetch_sub(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
return 0;
+ }
if (hw->adapter_state == HNS3_NIC_STARTED)
ret = hns3_dev_stop(eth_dev);
@@ -7376,7 +7378,7 @@ hns3_dev_init(struct rte_eth_dev *eth_dev)
"process, ret = %d", ret);
goto err_mp_init_secondary;
}
- hw->secondary_cnt++;
+ __atomic_fetch_add(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
hns3_tx_push_init(eth_dev);
return 0;
}
@@ -7479,8 +7481,10 @@ hns3_dev_uninit(struct rte_eth_dev *eth_dev)
PMD_INIT_FUNC_TRACE();
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ __atomic_fetch_sub(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
return 0;
+ }
if (hw->adapter_state < HNS3_NIC_CLOSING)
hns3_dev_close(eth_dev);
@@ -1892,8 +1892,10 @@ hns3vf_dev_close(struct rte_eth_dev *eth_dev)
struct hns3_hw *hw = &hns->hw;
int ret = 0;
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ __atomic_fetch_sub(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
return 0;
+ }
if (hw->adapter_state == HNS3_NIC_STARTED)
ret = hns3vf_dev_stop(eth_dev);
@@ -2684,7 +2686,7 @@ hns3vf_dev_init(struct rte_eth_dev *eth_dev)
"process, ret = %d", ret);
goto err_mp_init_secondary;
}
- hw->secondary_cnt++;
+ __atomic_fetch_add(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
hns3_tx_push_init(eth_dev);
return 0;
}
@@ -2786,8 +2788,10 @@ hns3vf_dev_uninit(struct rte_eth_dev *eth_dev)
PMD_INIT_FUNC_TRACE();
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ __atomic_fetch_sub(&hw->secondary_cnt, 1, __ATOMIC_RELAXED);
return 0;
+ }
if (hw->adapter_state < HNS3_NIC_CLOSING)
hns3vf_dev_close(eth_dev);
@@ -150,8 +150,10 @@ mp_req_on_rxtx(struct rte_eth_dev *dev, enum hns3_mp_req_type type)
int ret;
int i;
- if (rte_eal_process_type() == RTE_PROC_SECONDARY || !hw->secondary_cnt)
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY ||
+ __atomic_load_n(&hw->secondary_cnt, __ATOMIC_RELAXED) == 0)
return;
+
if (!mp_req_type_is_valid(type)) {
hns3_err(hw, "port %u unknown request (req_type %d)",
dev->data->port_id, type);