Re: [PATCH net] hinic: fix sending pkts from core while self testing

2020-09-18 Thread David Miller
From: Luo bin 
Date: Fri, 18 Sep 2020 12:09:38 +0800

> Call netif_tx_disable firstly before starting doing self-test to
> avoid sending packet from networking core and self-test packet
> simultaneously which may cause self-test failure or hw abnormal.
> 
> Fixes: 4aa218a4fe77 ("hinic: add self test support")
> Signed-off-by: Luo bin 

Applied.


[PATCH net] hinic: fix sending pkts from core while self testing

2020-09-17 Thread Luo bin
Call netif_tx_disable firstly before starting doing self-test to
avoid sending packet from networking core and self-test packet
simultaneously which may cause self-test failure or hw abnormal.

Fixes: 4aa218a4fe77 ("hinic: add self test support")
Signed-off-by: Luo bin 
---
 drivers/net/ethernet/huawei/hinic/hinic_ethtool.c | 4 
 drivers/net/ethernet/huawei/hinic/hinic_tx.c  | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c 
b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
index 6bb65ade1d77..c340d9acba80 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
@@ -1654,6 +1654,7 @@ static void hinic_diag_test(struct net_device *netdev,
}
 
netif_carrier_off(netdev);
+   netif_tx_disable(netdev);
 
err = do_lp_test(nic_dev, eth_test->flags, LP_DEFAULT_TIME,
 _index);
@@ -1662,9 +1663,12 @@ static void hinic_diag_test(struct net_device *netdev,
data[test_index] = 1;
}
 
+   netif_tx_wake_all_queues(netdev);
+
err = hinic_port_link_state(nic_dev, _state);
if (!err && link_state == HINIC_LINK_STATE_UP)
netif_carrier_on(netdev);
+
 }
 
 static int hinic_set_phys_id(struct net_device *netdev,
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_tx.c 
b/drivers/net/ethernet/huawei/hinic/hinic_tx.c
index 2b418b568767..c1f81e9144a1 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_tx.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_tx.c
@@ -717,8 +717,8 @@ static int free_tx_poll(struct napi_struct *napi, int 
budget)
netdev_txq = netdev_get_tx_queue(txq->netdev, qp->q_id);
 
__netif_tx_lock(netdev_txq, smp_processor_id());
-
-   netif_wake_subqueue(nic_dev->netdev, qp->q_id);
+   if (!netif_testing(nic_dev->netdev))
+   netif_wake_subqueue(nic_dev->netdev, qp->q_id);
 
__netif_tx_unlock(netdev_txq);
 
-- 
2.17.1