diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index ce707723f8cf..f8b3869672c3 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -4844,6 +4844,23 @@ mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, fib_node->fib_entry = NULL; } +static bool mlxsw_sp_fib4_allow_replace(struct mlxsw_sp_fib4_entry *fib4_entry) +{ + struct mlxsw_sp_fib_node *fib_node = fib4_entry->common.fib_node; + struct mlxsw_sp_fib4_entry *fib4_replaced; + + if (!fib_node->fib_entry) + return true; + + fib4_replaced = container_of(fib_node->fib_entry, + struct mlxsw_sp_fib4_entry, common); + if (fib4_entry->tb_id == RT_TABLE_MAIN && + fib4_replaced->tb_id == RT_TABLE_LOCAL) + return false; + + return true; +} + static int mlxsw_sp_router_fib4_replace(struct mlxsw_sp *mlxsw_sp, const struct fib_entry_notifier_info *fen_info) @@ -4872,6 +4889,12 @@ mlxsw_sp_router_fib4_replace(struct mlxsw_sp *mlxsw_sp, goto err_fib4_entry_create; } + if (!mlxsw_sp_fib4_allow_replace(fib4_entry)) { + mlxsw_sp_fib4_entry_destroy(mlxsw_sp, fib4_entry); + mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); + return 0; + } + replaced = fib_node->fib_entry; err = mlxsw_sp_fib_node_entry_link(mlxsw_sp, &fib4_entry->common); if (err) { @@ -4908,7 +4931,7 @@ static void mlxsw_sp_router_fib4_del(struct mlxsw_sp *mlxsw_sp, return; fib4_entry = mlxsw_sp_fib4_entry_lookup(mlxsw_sp, fen_info); - if (WARN_ON(!fib4_entry)) + if (!fib4_entry) return; fib_node = fib4_entry->common.fib_node; @@ -5408,6 +5431,27 @@ mlxsw_sp_fib6_entry_lookup(struct mlxsw_sp *mlxsw_sp, return NULL; } +static bool mlxsw_sp_fib6_allow_replace(struct mlxsw_sp_fib6_entry *fib6_entry) +{ + struct mlxsw_sp_fib_node *fib_node = fib6_entry->common.fib_node; + struct mlxsw_sp_fib6_entry *fib6_replaced; + struct fib6_info *rt, *rt_replaced; + + if (!fib_node->fib_entry) + return true; + + fib6_replaced = container_of(fib_node->fib_entry, + struct mlxsw_sp_fib6_entry, + common); + rt = mlxsw_sp_fib6_entry_rt(fib6_entry); + rt_replaced = mlxsw_sp_fib6_entry_rt(fib6_replaced); + if (rt->fib6_table->tb6_id == RT_TABLE_MAIN && + rt_replaced->fib6_table->tb6_id == RT_TABLE_LOCAL) + return false; + + return true; +} + static int mlxsw_sp_router_fib6_replace(struct mlxsw_sp *mlxsw_sp, struct fib6_info **rt_arr, unsigned int nrt6) @@ -5442,6 +5486,12 @@ static int mlxsw_sp_router_fib6_replace(struct mlxsw_sp *mlxsw_sp, goto err_fib6_entry_create; } + if (!mlxsw_sp_fib6_allow_replace(fib6_entry)) { + mlxsw_sp_fib6_entry_destroy(mlxsw_sp, fib6_entry); + mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); + return 0; + } + replaced = fib_node->fib_entry; err = mlxsw_sp_fib_node_entry_link(mlxsw_sp, &fib6_entry->common); if (err) |