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mlxsw: spectrum_router: Prepare for nexthops with trap action

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Nexthops that need to be programmed with a trap action might not have a
valid router interface (RIF) associated with them. Therefore, use the
loopback RIF created during initialization to program them to the
device.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel
2021-03-22 17:58:47 +02:00
committed by David S. Miller
parent 031d5c1606
commit 1be2361e3c
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@@ -3411,10 +3411,13 @@ static int __mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
{
struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry;
char ratr_pl[MLXSW_REG_RATR_LEN];
u16 rif_index;
rif_index = nh->rif ? nh->rif->rif_index :
mlxsw_sp->router->lb_rif_index;
mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY,
true, MLXSW_REG_RATR_TYPE_ETHERNET,
adj_index, nh->rif->rif_index);
adj_index, rif_index);
if (nh->action == MLXSW_SP_NEXTHOP_ACTION_DISCARD)
mlxsw_reg_ratr_trap_action_set(ratr_pl,
MLXSW_REG_RATR_TRAP_ACTION_DISCARD_ERRORS);