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net: hns: Clean rx fbd when ae stopped.

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[ Upstream commit 31f6b61d81 ]

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yonglong Liu
2018-12-15 11:53:24 +08:00
committed by Chris
parent 1b4cd74b95
commit 274a3e63d0
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
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@@ -290,6 +290,9 @@ 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);
}