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authorOng Boon Leong <boon.leong.ong@intel.com>2021-03-05 13:49:30 +0800
committerDavid S. Miller <davem@davemloft.net>2021-03-05 12:59:32 -0800
commit9a7b3950c7e15968e23d83be215e95ccc7c92a53 (patch)
tree526ee518ee2250d24662267062a8dc91570b7658 /drivers/net/phy/swphy.h
parent6650d31f21b8a0043613ae0a4a2e42e49dc20b2d (diff)
net: stmmac: Fix VLAN filter delete timeout issue in Intel mGBE SGMII
For Intel mGbE controller, MAC VLAN filter delete operation will time-out if serdes power-down sequence happened first during driver remove() with below message. [82294.764958] intel-eth-pci 0000:00:1e.4 eth2: stmmac_dvr_remove: removing driver [82294.778677] intel-eth-pci 0000:00:1e.4 eth2: Timeout accessing MAC_VLAN_Tag_Filter [82294.779997] intel-eth-pci 0000:00:1e.4 eth2: failed to kill vid 0081/0 [82294.947053] intel-eth-pci 0000:00:1d.2 eth1: stmmac_dvr_remove: removing driver [82295.002091] intel-eth-pci 0000:00:1d.1 eth0: stmmac_dvr_remove: removing driver Therefore, we delay the serdes power-down to be after unregister_netdev() which triggers the VLAN filter delete. Fixes: b9663b7ca6ff ("net: stmmac: Enable SERDES power up/down sequence") Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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