mlxsw: spectrum_router: Correctly dump neighbour activity

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The device's neighbour table is periodically dumped in order to update
the kernel about active neighbours. A single dump session may span
multiple queries, until the response carries less records than requested
or when a record (can contain up to four neighbour entries) is not full.
Current code stops the session when the number of returned records is
zero, which can result in infinite loop in case of high packet rate.

Fix this by stopping the session according to the above logic.

Fixes: c723c735fa ("mlxsw: spectrum_router: Periodically update the kernel's neigh table")
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Arkadi Sharshevsky 2016-11-11 16:34:26 +01:00 • committed by David S. Miller

parent 2d644d4c75

commit 42cdb338f4

1 changed files with 21 additions and 1 deletions

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drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

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