diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 120 |
1 files changed, 81 insertions, 39 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index a330b369e899..1aa436054490 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -16,6 +16,7 @@ #include <linux/if_macvlan.h> #include <linux/refcount.h> #include <linux/jhash.h> +#include <linux/net_namespace.h> #include <net/netevent.h> #include <net/neighbour.h> #include <net/arp.h> @@ -76,6 +77,7 @@ struct mlxsw_sp_router { struct notifier_block inet6addr_nb; const struct mlxsw_sp_rif_ops **rif_ops_arr; const struct mlxsw_sp_ipip_ops **ipip_ops_arr; + u32 adj_discard_index; }; struct mlxsw_sp_rif { @@ -366,6 +368,7 @@ enum mlxsw_sp_fib_entry_type { MLXSW_SP_FIB_ENTRY_TYPE_LOCAL, MLXSW_SP_FIB_ENTRY_TYPE_TRAP, MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE, + MLXSW_SP_FIB_ENTRY_TYPE_UNREACHABLE, /* This is a special case of local delivery, where a packet should be * decapsulated on reception. Note that there is no corresponding ENCAP, @@ -2551,14 +2554,14 @@ static int mlxsw_sp_router_schedule_work(struct net *net, struct mlxsw_sp_netevent_work *net_work; struct mlxsw_sp_router *router; - if (!net_eq(net, &init_net)) + router = container_of(nb, struct mlxsw_sp_router, netevent_nb); + if (!net_eq(net, mlxsw_sp_net(router->mlxsw_sp))) return NOTIFY_DONE; net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC); if (!net_work) return NOTIFY_BAD; - router = container_of(nb, struct mlxsw_sp_router, netevent_nb); INIT_WORK(&net_work->work, cb); net_work->mlxsw_sp = router->mlxsw_sp; mlxsw_core_schedule_work(&net_work->work); @@ -4195,15 +4198,31 @@ mlxsw_sp_fib_entry_ralue_pack(char *ralue_pl, } } +static int mlxsw_sp_adj_discard_write(struct mlxsw_sp *mlxsw_sp, u16 rif_index) +{ + u32 adj_discard_index = mlxsw_sp->router->adj_discard_index; + enum mlxsw_reg_ratr_trap_action trap_action; + char ratr_pl[MLXSW_REG_RATR_LEN]; + + trap_action = MLXSW_REG_RATR_TRAP_ACTION_DISCARD_ERRORS; + mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY, true, + MLXSW_REG_RATR_TYPE_ETHERNET, adj_discard_index, + rif_index); + mlxsw_reg_ratr_trap_action_set(ratr_pl, trap_action); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ratr), ratr_pl); +} + static int mlxsw_sp_fib_entry_op_remote(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_entry *fib_entry, enum mlxsw_reg_ralue_op op) { + struct mlxsw_sp_nexthop_group *nh_group = fib_entry->nh_group; char ralue_pl[MLXSW_REG_RALUE_LEN]; enum mlxsw_reg_ralue_trap_action trap_action; u16 trap_id = 0; u32 adjacency_index = 0; u16 ecmp_size = 0; + int err; /* In case the nexthop group adjacency index is valid, use it * with provided ECMP size. Otherwise, setup trap and pass @@ -4213,6 +4232,15 @@ static int mlxsw_sp_fib_entry_op_remote(struct mlxsw_sp *mlxsw_sp, trap_action = MLXSW_REG_RALUE_TRAP_ACTION_NOP; adjacency_index = fib_entry->nh_group->adj_index; ecmp_size = fib_entry->nh_group->ecmp_size; + } else if (!nh_group->adj_index_valid && nh_group->count && + nh_group->nh_rif) { + err = mlxsw_sp_adj_discard_write(mlxsw_sp, + nh_group->nh_rif->rif_index); + if (err) + return err; + trap_action = MLXSW_REG_RALUE_TRAP_ACTION_NOP; + adjacency_index = mlxsw_sp->router->adj_discard_index; + ecmp_size = 1; } else { trap_action = MLXSW_REG_RALUE_TRAP_ACTION_TRAP; trap_id = MLXSW_TRAP_ID_RTR_INGRESS0; @@ -4273,6 +4301,23 @@ static int mlxsw_sp_fib_entry_op_blackhole(struct mlxsw_sp *mlxsw_sp, } static int +mlxsw_sp_fib_entry_op_unreachable(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry *fib_entry, + enum mlxsw_reg_ralue_op op) +{ + enum mlxsw_reg_ralue_trap_action trap_action; + char ralue_pl[MLXSW_REG_RALUE_LEN]; + u16 trap_id; + + trap_action = MLXSW_REG_RALUE_TRAP_ACTION_TRAP; + trap_id = MLXSW_TRAP_ID_RTR_INGRESS1; + + mlxsw_sp_fib_entry_ralue_pack(ralue_pl, fib_entry, op); + mlxsw_reg_ralue_act_local_pack(ralue_pl, trap_action, trap_id, 0); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); +} + +static int mlxsw_sp_fib_entry_op_ipip_decap(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_entry *fib_entry, enum mlxsw_reg_ralue_op op) @@ -4313,6 +4358,9 @@ static int __mlxsw_sp_fib_entry_op(struct mlxsw_sp *mlxsw_sp, return mlxsw_sp_fib_entry_op_trap(mlxsw_sp, fib_entry, op); case MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE: return mlxsw_sp_fib_entry_op_blackhole(mlxsw_sp, fib_entry, op); + case MLXSW_SP_FIB_ENTRY_TYPE_UNREACHABLE: + return mlxsw_sp_fib_entry_op_unreachable(mlxsw_sp, fib_entry, + op); case MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP: return mlxsw_sp_fib_entry_op_ipip_decap(mlxsw_sp, fib_entry, op); @@ -4390,7 +4438,7 @@ mlxsw_sp_fib4_entry_type_set(struct mlxsw_sp *mlxsw_sp, * can do so with a lower priority than packets directed * at the host, so use action type local instead of trap. */ - fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; + fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_UNREACHABLE; return 0; case RTN_UNICAST: if (mlxsw_sp_fi_is_gateway(mlxsw_sp, fi)) @@ -5350,7 +5398,7 @@ static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp, else if (rt->fib6_type == RTN_BLACKHOLE) fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE; else if (rt->fib6_flags & RTF_REJECT) - fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; + fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_UNREACHABLE; else if (mlxsw_sp_rt6_is_gateway(mlxsw_sp, rt)) fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE; else @@ -6019,12 +6067,6 @@ static void mlxsw_sp_router_fib4_event_work(struct work_struct *work) mlxsw_sp_router_fib4_del(mlxsw_sp, &fib_work->fen_info); fib_info_put(fib_work->fen_info.fi); break; - case FIB_EVENT_RULE_ADD: - /* if we get here, a rule was added that we do not support. - * just do the fib_abort - */ - mlxsw_sp_router_fib_abort(mlxsw_sp); - break; case FIB_EVENT_NH_ADD: /* fall through */ case FIB_EVENT_NH_DEL: mlxsw_sp_nexthop4_event(mlxsw_sp, fib_work->event, @@ -6065,12 +6107,6 @@ static void mlxsw_sp_router_fib6_event_work(struct work_struct *work) fib_work->fib6_work.nrt6); mlxsw_sp_router_fib6_work_fini(&fib_work->fib6_work); break; - case FIB_EVENT_RULE_ADD: - /* if we get here, a rule was added that we do not support. - * just do the fib_abort - */ - mlxsw_sp_router_fib_abort(mlxsw_sp); - break; } rtnl_unlock(); kfree(fib_work); @@ -6112,12 +6148,6 @@ static void mlxsw_sp_router_fibmr_event_work(struct work_struct *work) &fib_work->ven_info); dev_put(fib_work->ven_info.dev); break; - case FIB_EVENT_RULE_ADD: - /* if we get here, a rule was added that we do not support. - * just do the fib_abort - */ - mlxsw_sp_router_fib_abort(mlxsw_sp); - break; } rtnl_unlock(); kfree(fib_work); @@ -6213,7 +6243,7 @@ static int mlxsw_sp_router_fib_rule_event(unsigned long event, rule = fr_info->rule; /* Rule only affects locally generated traffic */ - if (rule->iifindex == info->net->loopback_dev->ifindex) + if (rule->iifindex == mlxsw_sp_net(mlxsw_sp)->loopback_dev->ifindex) return 0; switch (info->family) { @@ -6250,8 +6280,7 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb, struct mlxsw_sp_router *router; int err; - if (!net_eq(info->net, &init_net) || - (info->family != AF_INET && info->family != AF_INET6 && + if ((info->family != AF_INET && info->family != AF_INET6 && info->family != RTNL_FAMILY_IPMR && info->family != RTNL_FAMILY_IP6MR)) return NOTIFY_DONE; @@ -6263,9 +6292,7 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb, case FIB_EVENT_RULE_DEL: err = mlxsw_sp_router_fib_rule_event(event, info, router->mlxsw_sp); - if (!err || info->extack) - return notifier_from_errno(err); - break; + return notifier_from_errno(err); case FIB_EVENT_ENTRY_ADD: case FIB_EVENT_ENTRY_REPLACE: /* fall through */ case FIB_EVENT_ENTRY_APPEND: /* fall through */ @@ -7974,9 +8001,10 @@ static void mlxsw_sp_mp_hash_field_set(char *recr2_pl, int field) mlxsw_reg_recr2_outer_header_fields_enable_set(recr2_pl, field, true); } -static void mlxsw_sp_mp4_hash_init(char *recr2_pl) +static void mlxsw_sp_mp4_hash_init(struct mlxsw_sp *mlxsw_sp, char *recr2_pl) { - bool only_l3 = !init_net.ipv4.sysctl_fib_multipath_hash_policy; + struct net *net = mlxsw_sp_net(mlxsw_sp); + bool only_l3 = !net->ipv4.sysctl_fib_multipath_hash_policy; mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV4_EN_NOT_TCP_NOT_UDP); @@ -7991,9 +8019,9 @@ static void mlxsw_sp_mp4_hash_init(char *recr2_pl) mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_DPORT); } -static void mlxsw_sp_mp6_hash_init(char *recr2_pl) +static void mlxsw_sp_mp6_hash_init(struct mlxsw_sp *mlxsw_sp, char *recr2_pl) { - bool only_l3 = !ip6_multipath_hash_policy(&init_net); + bool only_l3 = !ip6_multipath_hash_policy(mlxsw_sp_net(mlxsw_sp)); mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV6_EN_NOT_TCP_NOT_UDP); @@ -8021,8 +8049,8 @@ static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp) seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac), 0); mlxsw_reg_recr2_pack(recr2_pl, seed); - mlxsw_sp_mp4_hash_init(recr2_pl); - mlxsw_sp_mp6_hash_init(recr2_pl); + mlxsw_sp_mp4_hash_init(mlxsw_sp, recr2_pl); + mlxsw_sp_mp6_hash_init(mlxsw_sp, recr2_pl); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(recr2), recr2_pl); } @@ -8053,7 +8081,8 @@ static int mlxsw_sp_dscp_init(struct mlxsw_sp *mlxsw_sp) static int __mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) { - bool usp = init_net.ipv4.sysctl_ip_fwd_update_priority; + struct net *net = mlxsw_sp_net(mlxsw_sp); + bool usp = net->ipv4.sysctl_ip_fwd_update_priority; char rgcr_pl[MLXSW_REG_RGCR_LEN]; u64 max_rifs; int err; @@ -8079,7 +8108,8 @@ static void __mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp) mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rgcr), rgcr_pl); } -int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) +int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp, + struct netlink_ext_ack *extack) { struct mlxsw_sp_router *router; int err; @@ -8140,6 +8170,11 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) if (err) goto err_neigh_init; + err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + &router->adj_discard_index); + if (err) + goto err_adj_discard_index_alloc; + mlxsw_sp->router->netevent_nb.notifier_call = mlxsw_sp_router_netevent_event; err = register_netevent_notifier(&mlxsw_sp->router->netevent_nb); @@ -8155,8 +8190,9 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) goto err_dscp_init; mlxsw_sp->router->fib_nb.notifier_call = mlxsw_sp_router_fib_event; - err = register_fib_notifier(&mlxsw_sp->router->fib_nb, - mlxsw_sp_router_fib_dump_flush); + err = register_fib_notifier(mlxsw_sp_net(mlxsw_sp), + &mlxsw_sp->router->fib_nb, + mlxsw_sp_router_fib_dump_flush, extack); if (err) goto err_register_fib_notifier; @@ -8167,6 +8203,9 @@ err_dscp_init: err_mp_hash_init: unregister_netevent_notifier(&mlxsw_sp->router->netevent_nb); err_register_netevent_notifier: + mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + router->adj_discard_index); +err_adj_discard_index_alloc: mlxsw_sp_neigh_fini(mlxsw_sp); err_neigh_init: mlxsw_sp_vrs_fini(mlxsw_sp); @@ -8195,8 +8234,11 @@ err_register_inetaddr_notifier: void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp) { - unregister_fib_notifier(&mlxsw_sp->router->fib_nb); + unregister_fib_notifier(mlxsw_sp_net(mlxsw_sp), + &mlxsw_sp->router->fib_nb); unregister_netevent_notifier(&mlxsw_sp->router->netevent_nb); + mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + mlxsw_sp->router->adj_discard_index); mlxsw_sp_neigh_fini(mlxsw_sp); mlxsw_sp_vrs_fini(mlxsw_sp); mlxsw_sp_mr_fini(mlxsw_sp); |