s390/qeth: remove VLAN tracking for L2 devices

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For recovery purposes, qeth keeps track of all registered VIDs. Replace
this by using the infrastructure introduced in
commit 9daae9bd47 ("net: Call add/kill vid ndo on vlan filter feature toggling").

By managing NETIF_F_HW_VLAN_CTAG_FILTER as a hw_feature,
netdev_update_features() will select it from dev->wanted_features
and replay all of the netdevice's VIDs to its ndo_vlan_rx_add_vid()
callback.
z/VM NICs strictly require VLAN registration, so don't expose it as
hw_feature there but add a little hack in qeth_enable_hw_features()
to make things work regardless.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Julian Wiedmann 2019-01-25 15:44:23 +01:00 • committed by David S. Miller

parent e6e771b3d8

commit 5fc692a7ff

4 changed files with 18 additions and 63 deletions

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7

drivers/s390/net/qeth_core.h

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12

drivers/s390/net/qeth_core_main.c

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1

drivers/s390/net/qeth_core_mpc.h

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61

drivers/s390/net/qeth_l2_main.c

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