diff options
14 files changed, 954 insertions, 30 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 9b48dffc9f63..5f8066ab7d40 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -5666,6 +5666,8 @@ enum mlxsw_reg_ritr_loopback_protocol { MLXSW_REG_RITR_LOOPBACK_PROTOCOL_IPIP_IPV4, /* IPinIP IPv6 underlay Unicast */ MLXSW_REG_RITR_LOOPBACK_PROTOCOL_IPIP_IPV6, + /* IPinIP generic - used for Spectrum-2 underlay RIF */ + MLXSW_REG_RITR_LOOPBACK_GENERIC, }; /* reg_ritr_loopback_protocol @@ -5706,6 +5708,13 @@ MLXSW_ITEM32(reg, ritr, loopback_ipip_options, 0x10, 20, 4); */ MLXSW_ITEM32(reg, ritr, loopback_ipip_uvr, 0x10, 0, 16); +/* reg_ritr_loopback_ipip_underlay_rif + * Underlay ingress router interface. + * Reserved for Spectrum. + * Access: RW + */ +MLXSW_ITEM32(reg, ritr, loopback_ipip_underlay_rif, 0x14, 0, 16); + /* reg_ritr_loopback_ipip_usip* * Encapsulation Underlay source IP. * Access: RW @@ -5821,11 +5830,12 @@ static inline void mlxsw_reg_ritr_loopback_ipip_common_pack(char *payload, enum mlxsw_reg_ritr_loopback_ipip_type ipip_type, enum mlxsw_reg_ritr_loopback_ipip_options options, - u16 uvr_id, u32 gre_key) + u16 uvr_id, u16 underlay_rif, u32 gre_key) { mlxsw_reg_ritr_loopback_ipip_type_set(payload, ipip_type); mlxsw_reg_ritr_loopback_ipip_options_set(payload, options); mlxsw_reg_ritr_loopback_ipip_uvr_set(payload, uvr_id); + mlxsw_reg_ritr_loopback_ipip_underlay_rif_set(payload, underlay_rif); mlxsw_reg_ritr_loopback_ipip_gre_key_set(payload, gre_key); } @@ -5833,12 +5843,12 @@ static inline void mlxsw_reg_ritr_loopback_ipip4_pack(char *payload, enum mlxsw_reg_ritr_loopback_ipip_type ipip_type, enum mlxsw_reg_ritr_loopback_ipip_options options, - u16 uvr_id, u32 usip, u32 gre_key) + u16 uvr_id, u16 underlay_rif, u32 usip, u32 gre_key) { mlxsw_reg_ritr_loopback_protocol_set(payload, MLXSW_REG_RITR_LOOPBACK_PROTOCOL_IPIP_IPV4); mlxsw_reg_ritr_loopback_ipip_common_pack(payload, ipip_type, options, - uvr_id, gre_key); + uvr_id, underlay_rif, gre_key); mlxsw_reg_ritr_loopback_ipip_usip4_set(payload, usip); } @@ -7200,6 +7210,13 @@ MLXSW_ITEM32(reg, rtdp, type, 0x00, 28, 4); */ MLXSW_ITEM32(reg, rtdp, tunnel_index, 0x00, 0, 24); +/* reg_rtdp_egress_router_interface + * Underlay egress router interface. + * Valid range is from 0 to cap_max_router_interfaces - 1 + * Access: RW + */ +MLXSW_ITEM32(reg, rtdp, egress_router_interface, 0x40, 0, 16); + /* IPinIP */ /* reg_rtdp_ipip_irif diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 32519c93df17..a88169738b4a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4094,6 +4094,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core, mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops; mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr; mlxsw_sp->mac_mask = mlxsw_sp1_mac_mask; + mlxsw_sp->rif_ops_arr = mlxsw_sp1_rif_ops_arr; return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); } @@ -4110,6 +4111,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core, mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops; mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr; mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask; + mlxsw_sp->rif_ops_arr = mlxsw_sp2_rif_ops_arr; return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index a1c32a81b011..1fa5c81b209f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -75,6 +75,11 @@ enum mlxsw_sp_rif_type { MLXSW_SP_RIF_TYPE_MAX, }; +struct mlxsw_sp_rif_ops; + +extern const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[]; +extern const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[]; + enum mlxsw_sp_fid_type { MLXSW_SP_FID_TYPE_8021Q, MLXSW_SP_FID_TYPE_8021D, @@ -161,6 +166,7 @@ struct mlxsw_sp { const struct mlxsw_sp_mr_tcam_ops *mr_tcam_ops; const struct mlxsw_sp_acl_tcam_ops *acl_tcam_ops; const struct mlxsw_sp_nve_ops **nve_ops_arr; + const struct mlxsw_sp_rif_ops **rif_ops_arr; }; static inline struct mlxsw_sp_upper * diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c index 41e607a14846..49933818c6f5 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c @@ -220,7 +220,7 @@ start_again: for (; i < rif_count; i++) { struct mlxsw_sp_rif *rif = mlxsw_sp_rif_by_index(mlxsw_sp, i); - if (!rif) + if (!rif || !mlxsw_sp_rif_dev(rif)) continue; err = mlxsw_sp_erif_entry_get(mlxsw_sp, &entry, rif, counters_enabled); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c index 00db26c96bf5..6400cd644b7a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c @@ -145,6 +145,7 @@ mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_ipip_entry *ipip_entry) { u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb); + u16 ul_rif_id = mlxsw_sp_ipip_lb_ul_rif_id(ipip_entry->ol_lb); char rtdp_pl[MLXSW_REG_RTDP_LEN]; struct ip_tunnel_parm parms; unsigned int type_check; @@ -157,6 +158,7 @@ mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp, ikey = mlxsw_sp_ipip_parms4_ikey(parms); mlxsw_reg_rtdp_pack(rtdp_pl, MLXSW_REG_RTDP_TYPE_IPIP, tunnel_index); + mlxsw_reg_rtdp_egress_router_interface_set(rtdp_pl, ul_rif_id); type_check = has_ikey ? MLXSW_REG_RTDP_IPIP_TYPE_CHECK_ALLOW_GRE_KEY : diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 042341c7f6b9..0949404a28e5 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -80,7 +80,7 @@ struct mlxsw_sp_router { struct mlxsw_sp_rif { struct list_head nexthop_list; struct list_head neigh_list; - struct net_device *dev; + struct net_device *dev; /* NULL for underlay RIF */ struct mlxsw_sp_fid *fid; unsigned char addr[ETH_ALEN]; int mtu; @@ -120,6 +120,7 @@ struct mlxsw_sp_rif_ipip_lb { struct mlxsw_sp_rif common; struct mlxsw_sp_rif_ipip_lb_config lb_config; u16 ul_vr_id; /* Reserved for Spectrum-2. */ + u16 ul_rif_id; /* Reserved for Spectrum. */ }; struct mlxsw_sp_rif_params_ipip_lb { @@ -440,6 +441,8 @@ struct mlxsw_sp_vr { struct mlxsw_sp_fib *fib4; struct mlxsw_sp_fib *fib6; struct mlxsw_sp_mr_table *mr_table[MLXSW_SP_L3_PROTO_MAX]; + struct mlxsw_sp_rif *ul_rif; + refcount_t ul_rif_refcnt; }; static const struct rhashtable_params mlxsw_sp_fib_ht_params; @@ -1437,8 +1440,8 @@ mlxsw_sp_ipip_entry_ol_up_event(struct mlxsw_sp *mlxsw_sp, } static int -mlxsw_sp_rif_ipip_lb_op(struct mlxsw_sp_rif_ipip_lb *lb_rif, - struct mlxsw_sp_vr *ul_vr, bool enable) +mlxsw_sp_rif_ipip_lb_op(struct mlxsw_sp_rif_ipip_lb *lb_rif, u16 ul_vr_id, + u16 ul_rif_id, bool enable) { struct mlxsw_sp_rif_ipip_lb_config lb_cf = lb_rif->lb_config; struct mlxsw_sp_rif *rif = &lb_rif->common; @@ -1453,7 +1456,7 @@ mlxsw_sp_rif_ipip_lb_op(struct mlxsw_sp_rif_ipip_lb *lb_rif, rif->rif_index, rif->vr_id, rif->dev->mtu); mlxsw_reg_ritr_loopback_ipip4_pack(ritr_pl, lb_cf.lb_ipipt, MLXSW_REG_RITR_LOOPBACK_IPIP_OPTIONS_GRE_KEY_PRESET, - ul_vr->id, saddr4, lb_cf.okey); + ul_vr_id, ul_rif_id, saddr4, lb_cf.okey); break; case MLXSW_SP_L3_PROTO_IPV6: @@ -1468,14 +1471,13 @@ static int mlxsw_sp_netdevice_ipip_ol_update_mtu(struct mlxsw_sp *mlxsw_sp, { struct mlxsw_sp_ipip_entry *ipip_entry; struct mlxsw_sp_rif_ipip_lb *lb_rif; - struct mlxsw_sp_vr *ul_vr; int err = 0; ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); if (ipip_entry) { lb_rif = ipip_entry->ol_lb; - ul_vr = &mlxsw_sp->router->vrs[lb_rif->ul_vr_id]; - err = mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr, true); + err = mlxsw_sp_rif_ipip_lb_op(lb_rif, lb_rif->ul_vr_id, + lb_rif->ul_rif_id, true); if (err) goto out; lb_rif->common.mtu = ol_dev->mtu; @@ -6224,10 +6226,12 @@ static struct mlxsw_sp_rif *mlxsw_sp_rif_alloc(size_t rif_size, u16 rif_index, INIT_LIST_HEAD(&rif->nexthop_list); INIT_LIST_HEAD(&rif->neigh_list); - ether_addr_copy(rif->addr, l3_dev->dev_addr); - rif->mtu = l3_dev->mtu; + if (l3_dev) { + ether_addr_copy(rif->addr, l3_dev->dev_addr); + rif->mtu = l3_dev->mtu; + rif->dev = l3_dev; + } rif->vr_id = vr_id; - rif->dev = l3_dev; rif->rif_index = rif_index; return rif; @@ -6251,7 +6255,19 @@ u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *lb_rif) u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif) { - return lb_rif->ul_vr_id; + u32 ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(lb_rif->common.dev); + struct mlxsw_sp_vr *ul_vr; + + ul_vr = mlxsw_sp_vr_get(lb_rif->common.mlxsw_sp, ul_tb_id, NULL); + if (WARN_ON(IS_ERR(ul_vr))) + return 0; + + return ul_vr->id; +} + +u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif) +{ + return lb_rif->ul_rif_id; } int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif) @@ -6284,7 +6300,7 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp, int i, err; type = mlxsw_sp_dev_rif_type(mlxsw_sp, params->dev); - ops = mlxsw_sp->router->rif_ops_arr[type]; + ops = mlxsw_sp->rif_ops_arr[type]; vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id ? : RT_TABLE_MAIN, extack); if (IS_ERR(vr)) @@ -6303,6 +6319,7 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp, goto err_rif_alloc; } dev_hold(rif->dev); + mlxsw_sp->router->rifs[rif_index] = rif; rif->mlxsw_sp = mlxsw_sp; rif->ops = ops; @@ -6329,7 +6346,6 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp, } mlxsw_sp_rif_counters_alloc(rif); - mlxsw_sp->router->rifs[rif_index] = rif; return rif; @@ -6341,6 +6357,7 @@ err_configure: if (fid) mlxsw_sp_fid_put(fid); err_fid_get: + mlxsw_sp->router->rifs[rif_index] = NULL; dev_put(rif->dev); kfree(rif); err_rif_alloc: @@ -6361,7 +6378,6 @@ static void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif) mlxsw_sp_router_rif_gone_sync(mlxsw_sp, rif); vr = &mlxsw_sp->router->vrs[rif->vr_id]; - mlxsw_sp->router->rifs[rif->rif_index] = NULL; mlxsw_sp_rif_counters_free(rif); for (i = 0; i < MLXSW_SP_L3_PROTO_MAX; i++) mlxsw_sp_mr_rif_del(vr->mr_table[i], rif); @@ -6369,6 +6385,7 @@ static void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif) if (fid) /* Loopback RIFs are not associated with a FID. */ mlxsw_sp_fid_put(fid); + mlxsw_sp->router->rifs[rif->rif_index] = NULL; dev_put(rif->dev); kfree(rif); vr->rif_count--; @@ -6750,7 +6767,7 @@ static int mlxsw_sp_router_port_check_rif_addr(struct mlxsw_sp *mlxsw_sp, for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) { rif = mlxsw_sp->router->rifs[i]; - if (rif && rif->dev != dev && + if (rif && rif->dev && rif->dev != dev && !ether_addr_equal_masked(rif->dev->dev_addr, dev_addr, mlxsw_sp->mac_mask)) { NL_SET_ERR_MSG_MOD(extack, "All router interface MAC addresses must have the same prefix"); @@ -7424,7 +7441,7 @@ mlxsw_sp_rif_ipip_lb_setup(struct mlxsw_sp_rif *rif, } static int -mlxsw_sp_rif_ipip_lb_configure(struct mlxsw_sp_rif *rif) +mlxsw_sp1_rif_ipip_lb_configure(struct mlxsw_sp_rif *rif) { struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); u32 ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(rif->dev); @@ -7436,11 +7453,12 @@ mlxsw_sp_rif_ipip_lb_configure(struct mlxsw_sp_rif *rif) if (IS_ERR(ul_vr)) return PTR_ERR(ul_vr); - err = mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr, true); + err = mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr->id, 0, true); if (err) goto err_loopback_op; lb_rif->ul_vr_id = ul_vr->id; + lb_rif->ul_rif_id = 0; ++ul_vr->rif_count; return 0; @@ -7449,32 +7467,185 @@ err_loopback_op: return err; } -static void mlxsw_sp_rif_ipip_lb_deconfigure(struct mlxsw_sp_rif *rif) +static void mlxsw_sp1_rif_ipip_lb_deconfigure(struct mlxsw_sp_rif *rif) { struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; struct mlxsw_sp_vr *ul_vr; ul_vr = &mlxsw_sp->router->vrs[lb_rif->ul_vr_id]; - mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr, false); + mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr->id, 0, false); --ul_vr->rif_count; mlxsw_sp_vr_put(mlxsw_sp, ul_vr); } -static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_ipip_lb_ops = { +static const struct mlxsw_sp_rif_ops mlxsw_sp1_rif_ipip_lb_ops = { .type = MLXSW_SP_RIF_TYPE_IPIP_LB, .rif_size = sizeof(struct mlxsw_sp_rif_ipip_lb), .setup = mlxsw_sp_rif_ipip_lb_setup, - .configure = mlxsw_sp_rif_ipip_lb_configure, - .deconfigure = mlxsw_sp_rif_ipip_lb_deconfigure, + .configure = mlxsw_sp1_rif_ipip_lb_configure, + .deconfigure = mlxsw_sp1_rif_ipip_lb_deconfigure, }; -static const struct mlxsw_sp_rif_ops *mlxsw_sp_rif_ops_arr[] = { +const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[] = { [MLXSW_SP_RIF_TYPE_SUBPORT] = &mlxsw_sp_rif_subport_ops, [MLXSW_SP_RIF_TYPE_VLAN] = &mlxsw_sp_rif_vlan_emu_ops, [MLXSW_SP_RIF_TYPE_FID] = &mlxsw_sp_rif_fid_ops, - [MLXSW_SP_RIF_TYPE_IPIP_LB] = &mlxsw_sp_rif_ipip_lb_ops, + [MLXSW_SP_RIF_TYPE_IPIP_LB] = &mlxsw_sp1_rif_ipip_lb_ops, +}; + +static int +mlxsw_sp_rif_ipip_lb_ul_rif_op(struct mlxsw_sp_rif *ul_rif, bool enable) +{ + struct mlxsw_sp *mlxsw_sp = ul_rif->mlxsw_sp; + char ritr_pl[MLXSW_REG_RITR_LEN]; + + mlxsw_reg_ritr_pack(ritr_pl, enable, MLXSW_REG_RITR_LOOPBACK_IF, + ul_rif->rif_index, ul_rif->vr_id, IP_MAX_MTU); + mlxsw_reg_ritr_loopback_protocol_set(ritr_pl, + MLXSW_REG_RITR_LOOPBACK_GENERIC); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); +} + +static struct mlxsw_sp_rif * +mlxsw_sp_ul_rif_create(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_vr *vr, + struct netlink_ext_ack *extack) +{ + struct mlxsw_sp_rif *ul_rif; + u16 rif_index; + int err; + + err = mlxsw_sp_rif_index_alloc(mlxsw_sp, &rif_index); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported router interfaces"); + return ERR_PTR(err); + } + + ul_rif = mlxsw_sp_rif_alloc(sizeof(*ul_rif), rif_index, vr->id, NULL); + if (!ul_rif) + return ERR_PTR(-ENOMEM); + + mlxsw_sp->router->rifs[rif_index] = ul_rif; + ul_rif->mlxsw_sp = mlxsw_sp; + err = mlxsw_sp_rif_ipip_lb_ul_rif_op(ul_rif, true); + if (err) + goto ul_rif_op_err; + + return ul_rif; + +ul_rif_op_err: + mlxsw_sp->router->rifs[rif_index] = NULL; + kfree(ul_rif); + return ERR_PTR(err); +} + +static void mlxsw_sp_ul_rif_destroy(struct mlxsw_sp_rif *ul_rif) +{ + struct mlxsw_sp *mlxsw_sp = ul_rif->mlxsw_sp; + + mlxsw_sp_rif_ipip_lb_ul_rif_op(ul_rif, false); + mlxsw_sp->router->rifs[ul_rif->rif_index] = NULL; + kfree(ul_rif); +} + +static struct mlxsw_sp_rif * +mlxsw_sp_ul_rif_get(struct mlxsw_sp *mlxsw_sp, u32 tb_id, + struct netlink_ext_ack *extack) +{ + struct mlxsw_sp_vr *vr; + int err; + + vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id, extack); + if (IS_ERR(vr)) + return ERR_CAST(vr); + + if (refcount_inc_not_zero(&vr->ul_rif_refcnt)) + return vr->ul_rif; + + vr->ul_rif = mlxsw_sp_ul_rif_create(mlxsw_sp, vr, extack); + if (IS_ERR(vr->ul_rif)) { + err = PTR_ERR(vr->ul_rif); + goto err_ul_rif_create; + } + + vr->rif_count++; + refcount_set(&vr->ul_rif_refcnt, 1); + + return vr->ul_rif; + +err_ul_rif_create: + mlxsw_sp_vr_put(mlxsw_sp, vr); + return ERR_PTR(err); +} + +static void mlxsw_sp_ul_rif_put(struct mlxsw_sp_rif *ul_rif) +{ + struct mlxsw_sp *mlxsw_sp = ul_rif->mlxsw_sp; + struct mlxsw_sp_vr *vr; + + vr = &mlxsw_sp->router->vrs[ul_rif->vr_id]; + + if (!refcount_dec_and_test(&vr->ul_rif_refcnt)) + return; + + vr->rif_count--; + mlxsw_sp_ul_rif_destroy(ul_rif); + mlxsw_sp_vr_put(mlxsw_sp, vr); +} + +static int +mlxsw_sp2_rif_ipip_lb_configure(struct mlxsw_sp_rif *rif) +{ + struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); + u32 ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(rif->dev); + struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; + struct mlxsw_sp_rif *ul_rif; + int err; + + ul_rif = mlxsw_sp_ul_rif_get(mlxsw_sp, ul_tb_id, NULL); + if (IS_ERR(ul_rif)) + return PTR_ERR(ul_rif); + + err = mlxsw_sp_rif_ipip_lb_op(lb_rif, 0, ul_rif->rif_index, true); + if (err) + goto err_loopback_op; + + lb_rif->ul_vr_id = 0; + lb_rif->ul_rif_id = ul_rif->rif_index; + + return 0; + +err_loopback_op: + mlxsw_sp_ul_rif_put(ul_rif); + return err; +} + +static void mlxsw_sp2_rif_ipip_lb_deconfigure(struct mlxsw_sp_rif *rif) +{ + struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); + struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; + struct mlxsw_sp_rif *ul_rif; + + ul_rif = mlxsw_sp_rif_by_index(mlxsw_sp, lb_rif->ul_rif_id); + mlxsw_sp_rif_ipip_lb_op(lb_rif, 0, lb_rif->ul_rif_id, false); + mlxsw_sp_ul_rif_put(ul_rif); +} + +static const struct mlxsw_sp_rif_ops mlxsw_sp2_rif_ipip_lb_ops = { + .type = MLXSW_SP_RIF_TYPE_IPIP_LB, + .rif_size = sizeof(struct mlxsw_sp_rif_ipip_lb), + .setup = mlxsw_sp_rif_ipip_lb_setup, + .configure = mlxsw_sp2_rif_ipip_lb_configure, + .deconfigure = mlxsw_sp2_rif_ipip_lb_deconfigure, +}; + +const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[] = { + [MLXSW_SP_RIF_TYPE_SUBPORT] = &mlxsw_sp_rif_subport_ops, + [MLXSW_SP_RIF_TYPE_VLAN] = &mlxsw_sp_rif_vlan_emu_ops, + [MLXSW_SP_RIF_TYPE_FID] = &mlxsw_sp_rif_fid_ops, + [MLXSW_SP_RIF_TYPE_IPIP_LB] = &mlxsw_sp2_rif_ipip_lb_ops, }; static int mlxsw_sp_rifs_init(struct mlxsw_sp *mlxsw_sp) @@ -7487,8 +7658,6 @@ static int mlxsw_sp_rifs_init(struct mlxsw_sp *mlxsw_sp) if (!mlxsw_sp->router->rifs) return -ENOMEM; - mlxsw_sp->router->rif_ops_arr = mlxsw_sp_rif_ops_arr; - return 0; } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h index 3dbafdeaab2b..cc1de91e8217 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h @@ -29,6 +29,7 @@ struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp, u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif); u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif); u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif); +u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif); u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev); int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif); const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif); diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh new file mode 100755 index 000000000000..abb694397b86 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnel without key. +# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more +# details. + +ALL_TESTS="gre_flat4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_flat_create gre $ol1 $ul1 + sw2_flat_create gre $ol2 $ul2 +} + +gre_flat4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre flat" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_flat_destroy $ol2 $ul2 + sw1_flat_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh new file mode 100755 index 000000000000..c4f373337e48 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnel with key. +# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more +# details. + +ALL_TESTS="gre_flat4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_flat_create gre $ol1 $ul1 key 233 + sw2_flat_create gre $ol2 $ul2 key 233 +} + +gre_flat4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre flat with key" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_flat_destroy $ol2 $ul2 + sw1_flat_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh new file mode 100755 index 000000000000..a811130c0627 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnel with key. +# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more +# details. + +ALL_TESTS="gre_flat4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_flat_create gre $ol1 $ul1 ikey 111 okey 222 + sw2_flat_create gre $ol2 $ul2 ikey 222 okey 111 +} + +gre_flat4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre flat with ikey/okey" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_flat_destroy $ol2 $ul2 + sw1_flat_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh new file mode 100755 index 000000000000..05c5b3cf2f78 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnels without key. +# This test uses hierarchical topology for IP tunneling tests. See +# ipip_lib.sh for more details. + +ALL_TESTS="gre_hier4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_hierarchical_create gre $ol1 $ul1 + sw2_hierarchical_create gre $ol2 $ul2 +} + +gre_hier4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre hierarchical" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_hierarchical_destroy $ol2 $ul2 + sw1_hierarchical_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh new file mode 100755 index 000000000000..9b105dbca32a --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnels without key. +# This test uses hierarchical topology for IP tunneling tests. See +# ipip_lib.sh for more details. + +ALL_TESTS="gre_hier4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_hierarchical_create gre $ol1 $ul1 key 22 + sw2_hierarchical_create gre $ol2 $ul2 key 22 +} + +gre_hier4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre hierarchical with key" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_hierarchical_destroy $ol2 $ul2 + sw1_hierarchical_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh new file mode 100755 index 000000000000..e275d25bd83a --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh @@ -0,0 +1,63 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Test IP-in-IP GRE tunnels without key. +# This test uses hierarchical topology for IP tunneling tests. See +# ipip_lib.sh for more details. + +ALL_TESTS="gre_hier4 gre_mtu_change" + +NUM_NETIFS=6 +source lib.sh +source ipip_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + ol1=${NETIFS[p2]} + + ul1=${NETIFS[p3]} + ul2=${NETIFS[p4]} + + ol2=${NETIFS[p5]} + h2=${NETIFS[p6]} + + forwarding_enable + vrf_prepare + h1_create + h2_create + sw1_hierarchical_create gre $ol1 $ul1 ikey 111 okey 222 + sw2_hierarchical_create gre $ol2 $ul2 ikey 222 okey 111 +} + +gre_hier4() +{ + RET=0 + + ping_test $h1 192.0.2.18 " gre hierarchical with ikey/okey" +} + +gre_mtu_change() +{ + test_mtu_change gre +} + +cleanup() +{ + pre_cleanup + + sw2_hierarchical_destroy $ol2 $ul2 + sw1_hierarchical_destroy $ol1 $ul1 + h2_destroy + h1_destroy + vrf_cleanup + forwarding_restore +} + +trap cleanup EXIT + +setup_prepare +setup_wait +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ipip_lib.sh b/tools/testing/selftests/net/forwarding/ipip_lib.sh new file mode 100644 index 000000000000..30f36a57bae6 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ipip_lib.sh @@ -0,0 +1,349 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Handles creation and destruction of IP-in-IP or GRE tunnels over the given +# topology. Supports both flat and hierarchical models. +# +# Flat Model: +# Overlay and underlay share the same VRF. +# SW1 uses default VRF so tunnel has no bound dev. +# SW2 uses non-default VRF tunnel has a bound dev. +# +-------------------------+ +# | H1 | +# | $h1 + | +# | 192.0.2.1/28 | | +# +-------------------|-----+ +# | +# +-------------------|-----+ +# | SW1 | | +# | $ol1 + | +# | 192.0.2.2/28 | +# | | +# | + g1a (gre) | +# | loc=192.0.2.65 | +# | rem=192.0.2.66 --. | +# | tos=inherit | | +# | .------------------' | +# | | | +# | v | +# | + $ul1.111 (vlan) | +# | | 192.0.2.129/28 | +# | \ | +# | \_______ | +# | | | +# |VRF default + $ul1 | +# +------------|------------+ +# | +# +------------|------------+ +# | SW2 + $ul2 | +# | _______| | +# | / | +# | / | +# | + $ul2.111 (vlan) | +# | ^ 192.0.2.130/28 | +# | | | +# | | | +# | '------------------. | +# | + g2a (gre) | | +# | loc=192.0.2.66 | | +# | rem=192.0.2.65 --' | +# | tos=inherit | +# | | +# | $ol2 + | +# | 192.0.2.17/28 | | +# | VRF v$ol2 | | +# +-------------------|-----+ +# | +# +-------------------|-----+ +# | H2 | | +# | $h2 + | +# | 192.0.2.18/28 | +# +-------------------------+ +# +# Hierarchical model: +# The tunnel is bound to a device in a different VRF +# +# +---------------------------+ +# | H1 | +# | $h1 + | +# | 192.0.2.1/28 | | +# +-------------------|-------+ +# | +# +-------------------|-------+ +# | SW1 | | +# | +-----------------|-----+ | +# | | $ol1 + | | +# | | 192.0.2.2/28 | | +# | | | | +# | | + g1a (gre) | | +# | | rem=192.0.2.66 | | +# | | tos=inherit | | +# | | loc=192.0.2.65 | | +# | | ^ | | +# | | VRF v$ol1 | | | +# | +-----------|-----------+ | +# | | | +# | +-----------|-----------+ | +# | | VRF v$ul1 | | | +# | | | | | +# | | | | | +# | | v | | +# | | dummy1 + | | +# | | 192.0.2.65 | | +# | | .-------' | | +# | | | | | +# | | v | | +# | | + $ul1.111 (vlan) | | +# | | | 192.0.2.129/28 | | +# | | \ | | +# | | \_____ | | +# | | | | | +# | | + $ul1 | | +# | +----------|------------+ | +# +------------|--------------+ +# | +# +------------|--------------+ +# | SW2 | | +# | +----------|------------+ | +# | | + $ul2 | | +# | | _____| | | +# | | / | | +# | | / | | +# | | | $ul2.111 (vlan) | | +# | | + 192.0.2.130/28 | | +# | | ^ | | +# | | | | | +# | | '-------. | | +# | | dummy2 + | | +# | | 192.0.2.66 | | +# | | ^ | | +# | | | | | +# | | | | | +# | | VRF v$ul2 | | | +# | +-----------|-----------+ | +# | | | +# | +-----------|-----------+ | +# | | VRF v$ol2 | | | +# | | | | | +# | | v | | +# | | g2a (gre)+ | | +# | | loc=192.0.2.66 | | +# | | rem=192.0.2.65 | | +# | | tos=inherit | | +# | | | | +# | | $ol2 + | | +# | | 192.0.2.17/28 | | | +# | +-----------------|-----+ | +# +-------------------|-------+ +# | +# +-------------------|-------+ +# | H2 | | +# | $h2 + | +# | 192.0.2.18/28 | +# +---------------------------+ +source lib.sh + +h1_create() +{ + simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64 + ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2 +} + +h1_destroy() +{ + ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2 + simple_if_fini $h1 192.0.2.1/28 +} + +h2_create() +{ + simple_if_init $h2 192.0.2.18/28 + ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17 +} + +h2_destroy() +{ + ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17 + simple_if_fini $h2 192.0.2.18/28 +} + +sw1_flat_create() +{ + local type=$1; shift + local ol1=$1; shift + local ul1=$1; shift + + ip link set dev $ol1 up + __addr_add_del $ol1 add "192.0.2.2/28" + + ip link set dev $ul1 up + vlan_create $ul1 111 "" 192.0.2.129/28 + + tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit "$@" + ip link set dev g1a up + __addr_add_del g1a add "192.0.2.65/32" + + ip route add 192.0.2.66/32 via 192.0.2.130 + + ip route add 192.0.2.16/28 nexthop dev g1a +} + +sw1_flat_destroy() +{ + local ol1=$1; shift + local ul1=$1; shift + + ip route del 192.0.2.16/28 + + ip route del 192.0.2.66/32 via 192.0.2.130 + __simple_if_fini g1a 192.0.2.65/32 + tunnel_destroy g1a + + vlan_destroy $ul1 111 + __simple_if_fini $ul1 + __simple_if_fini $ol1 192.0.2.2/28 +} + +sw2_flat_create() +{ + local type=$1; shift + local ol2=$1; shift + local ul2=$1; shift + + simple_if_init $ol2 192.0.2.17/28 + __simple_if_init $ul2 v$ol2 + vlan_create $ul2 111 v$ol2 192.0.2.130/28 + + tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 \ + "$@" + __simple_if_init g2a v$ol2 192.0.2.66/32 + + ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129 + ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a +} + +sw2_flat_destroy() +{ + local ol2=$1; shift + local ul2=$1; shift + + ip route del vrf v$ol2 192.0.2.0/28 + + ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129 + __simple_if_fini g2a 192.0.2.66/32 + tunnel_destroy g2a + + vlan_destroy $ul2 111 + __simple_if_fini $ul2 + simple_if_fini $ol2 192.0.2.17/28 +} + +sw1_hierarchical_create() +{ + local type=$1; shift + local ol1=$1; shift + local ul1=$1; shift + + simple_if_init $ol1 192.0.2.2/28 + simple_if_init $ul1 + ip link add name dummy1 type dummy + __simple_if_init dummy1 v$ul1 192.0.2.65/32 + + vlan_create $ul1 111 v$ul1 192.0.2.129/28 + tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit dev dummy1 \ + "$@" + ip link set dev g1a master v$ol1 + + ip route add vrf v$ul1 192.0.2.66/32 via 192.0.2.130 + ip route add vrf v$ol1 192.0.2.16/28 nexthop dev g1a +} + +sw1_hierarchical_destroy() +{ + local ol1=$1; shift + local ul1=$1; shift + + ip route del vrf v$ol1 192.0.2.16/28 + ip route del vrf v$ul1 192.0.2.66/32 + + tunnel_destroy g1a + vlan_destroy $ul1 111 + + __simple_if_fini dummy1 192.0.2.65/32 + ip link del dev dummy1 + + simple_if_fini $ul1 + simple_if_fini $ol1 192.0.2.2/28 +} + +sw2_hierarchical_create() +{ + local type=$1; shift + local ol2=$1; shift + local ul2=$1; shift + + simple_if_init $ol2 192.0.2.17/28 + simple_if_init $ul2 + + ip link add name dummy2 type dummy + __simple_if_init dummy2 v$ul2 192.0.2.66/32 + + vlan_create $ul2 111 v$ul2 192.0.2.130/28 + tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev dummy2 \ + "$@" + ip link set dev g2a master v$ol2 + + ip route add vrf v$ul2 192.0.2.65/32 via 192.0.2.129 + ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a +} + +sw2_hierarchical_destroy() +{ + local ol2=$1; shift + local ul2=$1; shift + + ip route del vrf v$ol2 192.0.2.0/28 + ip route del vrf v$ul2 192.0.2.65/32 + + tunnel_destroy g2a + vlan_destroy $ul2 111 + + __simple_if_fini dummy2 192.0.2.66/32 + ip link del dev dummy2 + + simple_if_fini $ul2 + simple_if_fini $ol2 192.0.2.17/28 +} + +topo_mtu_change() +{ + local mtu=$1 + + ip link set mtu $mtu dev $h1 + ip link set mtu $mtu dev $ol1 + ip link set mtu $mtu dev g1a + ip link set mtu $mtu dev $ul1 + ip link set mtu $mtu dev $ul1.111 + ip link set mtu $mtu dev $h2 + ip link set mtu $mtu dev $ol2 + ip link set mtu $mtu dev g2a + ip link set mtu $mtu dev $ul2 + ip link set mtu $mtu dev $ul2.111 +} + +test_mtu_change() +{ + local encap=$1; shift + + RET=0 + + ping_do $h1 192.0.2.18 "-s 1800 -w 3" + check_fail $? "ping $encap should not pass with size 1800" + + RET=0 + + topo_mtu_change 2000 + ping_do $h1 192.0.2.18 "-s 1800 -w 3" + check_err $? + log_test "ping $encap packet size 1800 after MTU change" +} |