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mlxsw: spectrum_router: Export IPv6 link local address check helper 

Neighbors with link local addresses are not offloaded to the host table,
yet, the are maintained in the driver for adjacency table usage. When
dumping the IPv6 host neighbors this link local neighbors should be
ignored. This patch exports this helper for dpipe usage.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky 2017-08-31 17:59:13 +02:00 committed by David S. Miller
parent 1797f5b3cf
commit 1d1056d80b
2 changed files with 5 additions and 2 deletions
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6
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
View File

@ -1396,8 +1396,10 @@ mlxsw_sp_router_neigh_entry_op6(struct mlxsw_sp *mlxsw_sp,
mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
}
static bool mlxsw_sp_neigh_ipv6_ignore(struct neighbour *n)
bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry)
{
struct neighbour *n = neigh_entry->key.n;
/* Packets with a link-local destination address are trapped
* after LPM lookup and never reach the neighbour table, so
* there is no need to program such neighbours to the device.
@ -1420,7 +1422,7 @@ mlxsw_sp_neigh_entry_update(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_router_neigh_entry_op4(mlxsw_sp, neigh_entry,
mlxsw_sp_rauht_op(adding));
} else if (neigh_entry->key.n->tbl->family == AF_INET6) {
if (mlxsw_sp_neigh_ipv6_ignore(neigh_entry->key.n))
if (mlxsw_sp_neigh_ipv6_ignore(neigh_entry))
return;
mlxsw_sp_router_neigh_entry_op6(mlxsw_sp, neigh_entry,
mlxsw_sp_rauht_op(adding));

1
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
View File

@ -76,5 +76,6 @@ void
mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
bool adding);
bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
#endif /* _MLXSW_ROUTER_H_*/