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net: hns: Clean rx fbd when ae stopped.

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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>
This commit is contained in:
Yonglong Liu 2018-12-15 11:53:24 +08:00 committed by David S. Miller
parent 5778b13b64
commit 31f6b61d81
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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@ -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);
}