nfp: flower: ensure MAC cleanup on address change

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It is possible to receive a MAC address change notification without the
net device being down (e.g. when an OvS bridge is assigned the same MAC as
a port added to it). This means that an offloaded MAC address may not be
removed if its device gets a new address.

Maintain a record of the offloaded MAC addresses for each repr and netdev
assigned a MAC offload index. Use this to delete the (now expired) MAC if
a change of address event occurs. Only handle change address events if the
device is already up - if not then the netdev up event will handle it.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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John Hurley 2019-01-15 19:06:58 -08:00 • committed by David S. Miller

parent 05d2bee6bd

commit 13cf71031d

2 changed files with 104 additions and 10 deletions

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8

drivers/net/ethernet/netronome/nfp/flower/main.h

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108

drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c

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