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net: hns: Clean rx fbd when ae stopped.

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[ Upstream commit 31f6b61d810654fb3ef43f4d8afda0f44b142fad ]

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 Greg Kroah-Hartman
parent 1d6bde5066
commit c2a11c3dc4
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);
}