[dpdk-dev] [PATCH 5/6] net/hns3: fix the strategy of getting link status for VF

["Wei Hu (Xavier)" <xavier.huwei@tom.com>]

From: Huisong Li <lihuisong@huawei.com>

Currently, port link status is "up" in VF driver after user calling the
rte_eth_dev_stop API. This is unreasonable.

Therefore, this patch adjusts the strategy of getting link status from
PF driver for VF. VF drvier should stop getting link status from PF by
canceling the alarm that VF driver send mailbox message to PF driver,
when the rte_eth_dev_stop API is called. And VF driver should restore
the alarm when the rte_eth_dev_start API is called.

Fixes: a5475d61fa34 ("net/hns3: support VF")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
---
 drivers/net/hns3/hns3_ethdev_vf.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 2274ac35e..b1736e73a 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -1246,6 +1246,7 @@ hns3vf_dev_stop(struct rte_eth_dev *eth_dev)
 		hns3_dev_release_mbufs(hns);
 		hw->adapter_state = HNS3_NIC_CONFIGURED;
 	}
+	rte_eal_alarm_cancel(hns3vf_service_handler, eth_dev);
 	rte_spinlock_unlock(&hw->lock);
 }
 
@@ -1265,7 +1266,6 @@ hns3vf_dev_close(struct rte_eth_dev *eth_dev)
 	hns3_reset_abort(hns);
 	hw->adapter_state = HNS3_NIC_CLOSED;
 	rte_eal_alarm_cancel(hns3vf_keep_alive_handler, eth_dev);
-	rte_eal_alarm_cancel(hns3vf_service_handler, eth_dev);
 	hns3vf_configure_all_mc_mac_addr(hns, true);
 	hns3vf_remove_all_vlan_table(hns);
 	hns3vf_uninit_vf(eth_dev);
@@ -1286,8 +1286,6 @@ hns3vf_dev_link_update(struct rte_eth_dev *eth_dev,
 	struct hns3_mac *mac = &hw->mac;
 	struct rte_eth_link new_link;
 
-	hns3vf_request_link_info(hw);
-
 	memset(&new_link, 0, sizeof(new_link));
 	switch (mac->link_speed) {
 	case ETH_SPEED_NUM_10M:
@@ -1352,6 +1350,8 @@ hns3vf_dev_start(struct rte_eth_dev *eth_dev)
 	rte_spinlock_unlock(&hw->lock);
 	hns3_set_rxtx_function(eth_dev);
 	hns3_mp_req_start_rxtx(eth_dev);
+	rte_eal_alarm_set(HNS3VF_SERVICE_INTERVAL, hns3vf_service_handler,
+			  eth_dev);
 	return 0;
 }
 
@@ -1789,8 +1789,6 @@ hns3vf_dev_init(struct rte_eth_dev *eth_dev)
 	}
 	rte_eal_alarm_set(HNS3VF_KEEP_ALIVE_INTERVAL, hns3vf_keep_alive_handler,
 			  eth_dev);
-	rte_eal_alarm_set(HNS3VF_SERVICE_INTERVAL, hns3vf_service_handler,
-			  eth_dev);
 	return 0;
 
 err_rte_zmalloc:
-- 
2.23.0