diff mbox series

[net,05/10] net: hns: Clean rx fbd when ae stopped.

Message ID 1544846009-50276-6-git-send-email-lipeng321@huawei.com
State Accepted, archived
Delegated to: David Miller
Headers show
Series net: hns: Code improvements & fixes for HNS driver | expand

Commit Message

lipeng (Y) Dec. 15, 2018, 3:53 a.m. UTC 
From: Yonglong Liu <liuyonglong@huawei.com>

If there are packets in hardware when changing the speed or duplex,
it may cause hardware hang up.

This patch adds the code to wait rx fbd clean up when ae stopped.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index b52029e..ad1779f 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -379,6 +379,9 @@  static void hns_ae_stop(struct hnae_handle *handle)
 
 	hns_ae_ring_enable_all(handle, 0);
 
+	/* clean rx fbd. */
+	hns_rcb_wait_fbd_clean(handle->qs, handle->q_num, RCB_INT_FLAG_RX);
+
 	(void)hns_mac_vm_config_bc_en(mac_cb, 0, false);
 }