net: marvell: prestera: Propagate nh state from hw to kernel

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We poll nexthops in HW and call for each active nexthop appropriate
neighbour.

Also we provide implicity neighbour resolving.
For example, user have added nexthop route:
  # ip route add 5.5.5.5 via 1.1.1.2
But neighbour 1.1.1.2 doesn't exist. In this case we will try to call
neigh_event_send, even if there is no traffic.
This is useful, when you have add route, which will be used after some
time but with a lot of traffic (burst). So, we has prepared, offloaded
route in advance.

Co-developed-by: Taras Chornyi <tchornyi@marvell.com>
Signed-off-by: Taras Chornyi <tchornyi@marvell.com>
Co-developed-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Yevhen Orlov 2022-10-01 12:34:17 +03:00 • committed by Jakub Kicinski

parent 396b80cb5c

commit ae15ed6e40

2 changed files with 114 additions and 0 deletions

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3

drivers/net/ethernet/marvell/prestera/prestera.h

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111

drivers/net/ethernet/marvell/prestera/prestera_router.c

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