diff options
| author | Ido Schimmel | 2017-07-18 10:10:25 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-07-18 20:57:33 +0200 |
| commit | bc65a8a4f4d214c30c21cba90607c93ac676f6cf (patch) | |
| tree | c37c8bb4b235ce908e45f92e0b6d4ed28b6569f8 /drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | |
| parent | mlxsw: spectrum_router: Allow IPv6 routes to be programmed (diff) | |
| download | kernel-qcow2-linux-bc65a8a4f4d214c30c21cba90607c93ac676f6cf.tar.gz kernel-qcow2-linux-bc65a8a4f4d214c30c21cba90607c93ac676f6cf.tar.xz kernel-qcow2-linux-bc65a8a4f4d214c30c21cba90607c93ac676f6cf.zip | |
mlxsw: spectrum_router: Set abort trap for IPv6
When we fail to insert a route we invoke the abort mechanism which
flushes all the tables and inserts a default route in each, so that all
packets incoming to the router will be trapped to the CPU.
Upon abort, add an IPv6 default route to the IPv6 tables.
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>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 1141d742468b..0017a611ed16 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -2810,19 +2810,20 @@ static void mlxsw_sp_router_fib4_del(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); } -static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) +static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp, + enum mlxsw_reg_ralxx_protocol proto, + u8 tree_id) { char ralta_pl[MLXSW_REG_RALTA_LEN]; char ralst_pl[MLXSW_REG_RALST_LEN]; int i, err; - mlxsw_reg_ralta_pack(ralta_pl, true, MLXSW_REG_RALXX_PROTOCOL_IPV4, - MLXSW_SP_LPM_TREE_MIN); + mlxsw_reg_ralta_pack(ralta_pl, true, proto, tree_id); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralta), ralta_pl); if (err) return err; - mlxsw_reg_ralst_pack(ralst_pl, 0xff, MLXSW_SP_LPM_TREE_MIN); + mlxsw_reg_ralst_pack(ralst_pl, 0xff, tree_id); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralst), ralst_pl); if (err) return err; @@ -2835,17 +2836,14 @@ static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) if (!mlxsw_sp_vr_is_used(vr)) continue; - mlxsw_reg_raltb_pack(raltb_pl, vr->id, - MLXSW_REG_RALXX_PROTOCOL_IPV4, - MLXSW_SP_LPM_TREE_MIN); + mlxsw_reg_raltb_pack(raltb_pl, vr->id, proto, tree_id); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raltb), raltb_pl); if (err) return err; - mlxsw_reg_ralue_pack4(ralue_pl, MLXSW_SP_L3_PROTO_IPV4, - MLXSW_REG_RALUE_OP_WRITE_WRITE, vr->id, 0, - 0); + mlxsw_reg_ralue_pack(ralue_pl, proto, + MLXSW_REG_RALUE_OP_WRITE_WRITE, vr->id, 0); mlxsw_reg_ralue_act_ip2me_pack(ralue_pl); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); @@ -2856,6 +2854,21 @@ static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) return 0; } +static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) +{ + enum mlxsw_reg_ralxx_protocol proto = MLXSW_REG_RALXX_PROTOCOL_IPV4; + int err; + + err = __mlxsw_sp_router_set_abort_trap(mlxsw_sp, proto, + MLXSW_SP_LPM_TREE_MIN); + if (err) + return err; + + proto = MLXSW_REG_RALXX_PROTOCOL_IPV6; + return __mlxsw_sp_router_set_abort_trap(mlxsw_sp, proto, + MLXSW_SP_LPM_TREE_MIN + 1); +} + static void mlxsw_sp_fib4_node_flush(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_node *fib_node) { @@ -2925,7 +2938,7 @@ static void mlxsw_sp_router_fib_flush(struct mlxsw_sp *mlxsw_sp) } } -static void mlxsw_sp_router_fib4_abort(struct mlxsw_sp *mlxsw_sp) +static void mlxsw_sp_router_fib_abort(struct mlxsw_sp *mlxsw_sp) { int err; @@ -2970,7 +2983,7 @@ static void mlxsw_sp_router_fib_event_work(struct work_struct *work) err = mlxsw_sp_router_fib4_add(mlxsw_sp, &fib_work->fen_info, replace, append); if (err) - mlxsw_sp_router_fib4_abort(mlxsw_sp); + mlxsw_sp_router_fib_abort(mlxsw_sp); fib_info_put(fib_work->fen_info.fi); break; case FIB_EVENT_ENTRY_DEL: @@ -2981,7 +2994,7 @@ static void mlxsw_sp_router_fib_event_work(struct work_struct *work) case FIB_EVENT_RULE_DEL: rule = fib_work->fr_info.rule; if (!fib4_rule_default(rule) && !rule->l3mdev) - mlxsw_sp_router_fib4_abort(mlxsw_sp); + mlxsw_sp_router_fib_abort(mlxsw_sp); fib_rule_put(rule); break; case FIB_EVENT_NH_ADD: /* fall through */ |