diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 203 |
1 files changed, 186 insertions, 17 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index d551e9bc373c..12b5d7fbe1e2 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -2889,6 +2889,18 @@ struct mlxsw_sp_nexthop_group_info { #define nh_rif nexthops[0].rif }; +struct mlxsw_sp_nexthop_group_vr_key { + u16 vr_id; + enum mlxsw_sp_l3proto proto; +}; + +struct mlxsw_sp_nexthop_group_vr_entry { + struct list_head list; /* member in vr_list */ + struct rhash_head ht_node; /* member in vr_ht */ + refcount_t ref_count; + struct mlxsw_sp_nexthop_group_vr_key key; +}; + struct mlxsw_sp_nexthop_group { struct rhash_head ht_node; struct list_head fib_list; /* list of fib entries that use this group */ @@ -2901,6 +2913,8 @@ struct mlxsw_sp_nexthop_group { } obj; }; struct mlxsw_sp_nexthop_group_info *nhgi; + struct list_head vr_list; + struct rhashtable vr_ht; enum mlxsw_sp_nexthop_group_type type; bool can_destroy; }; @@ -3017,6 +3031,96 @@ bool mlxsw_sp_nexthop_is_discard(const struct mlxsw_sp_nexthop *nh) return nh->discard; } +static const struct rhashtable_params mlxsw_sp_nexthop_group_vr_ht_params = { + .key_offset = offsetof(struct mlxsw_sp_nexthop_group_vr_entry, key), + .head_offset = offsetof(struct mlxsw_sp_nexthop_group_vr_entry, ht_node), + .key_len = sizeof(struct mlxsw_sp_nexthop_group_vr_key), + .automatic_shrinking = true, +}; + +static struct mlxsw_sp_nexthop_group_vr_entry * +mlxsw_sp_nexthop_group_vr_entry_lookup(struct mlxsw_sp_nexthop_group *nh_grp, + const struct mlxsw_sp_fib *fib) +{ + struct mlxsw_sp_nexthop_group_vr_key key; + + memset(&key, 0, sizeof(key)); + key.vr_id = fib->vr->id; + key.proto = fib->proto; + return rhashtable_lookup_fast(&nh_grp->vr_ht, &key, + mlxsw_sp_nexthop_group_vr_ht_params); +} + +static int +mlxsw_sp_nexthop_group_vr_entry_create(struct mlxsw_sp_nexthop_group *nh_grp, + const struct mlxsw_sp_fib *fib) +{ + struct mlxsw_sp_nexthop_group_vr_entry *vr_entry; + int err; + + vr_entry = kzalloc(sizeof(*vr_entry), GFP_KERNEL); + if (!vr_entry) + return -ENOMEM; + + vr_entry->key.vr_id = fib->vr->id; + vr_entry->key.proto = fib->proto; + refcount_set(&vr_entry->ref_count, 1); + + err = rhashtable_insert_fast(&nh_grp->vr_ht, &vr_entry->ht_node, + mlxsw_sp_nexthop_group_vr_ht_params); + if (err) + goto err_hashtable_insert; + + list_add(&vr_entry->list, &nh_grp->vr_list); + + return 0; + +err_hashtable_insert: + kfree(vr_entry); + return err; +} + +static void +mlxsw_sp_nexthop_group_vr_entry_destroy(struct mlxsw_sp_nexthop_group *nh_grp, + struct mlxsw_sp_nexthop_group_vr_entry *vr_entry) +{ + list_del(&vr_entry->list); + rhashtable_remove_fast(&nh_grp->vr_ht, &vr_entry->ht_node, + mlxsw_sp_nexthop_group_vr_ht_params); + kfree(vr_entry); +} + +static int +mlxsw_sp_nexthop_group_vr_link(struct mlxsw_sp_nexthop_group *nh_grp, + const struct mlxsw_sp_fib *fib) +{ + struct mlxsw_sp_nexthop_group_vr_entry *vr_entry; + + vr_entry = mlxsw_sp_nexthop_group_vr_entry_lookup(nh_grp, fib); + if (vr_entry) { + refcount_inc(&vr_entry->ref_count); + return 0; + } + + return mlxsw_sp_nexthop_group_vr_entry_create(nh_grp, fib); +} + +static void +mlxsw_sp_nexthop_group_vr_unlink(struct mlxsw_sp_nexthop_group *nh_grp, + const struct mlxsw_sp_fib *fib) +{ + struct mlxsw_sp_nexthop_group_vr_entry *vr_entry; + + vr_entry = mlxsw_sp_nexthop_group_vr_entry_lookup(nh_grp, fib); + if (WARN_ON_ONCE(!vr_entry)) + return; + + if (!refcount_dec_and_test(&vr_entry->ref_count)) + return; + + mlxsw_sp_nexthop_group_vr_entry_destroy(nh_grp, vr_entry); +} + struct mlxsw_sp_nexthop_group_cmp_arg { enum mlxsw_sp_nexthop_group_type type; union { @@ -3243,7 +3347,8 @@ mlxsw_sp_nexthop_lookup(struct mlxsw_sp *mlxsw_sp, } static int mlxsw_sp_adj_index_mass_update_vr(struct mlxsw_sp *mlxsw_sp, - const struct mlxsw_sp_fib *fib, + enum mlxsw_sp_l3proto proto, + u16 vr_id, u32 adj_index, u16 ecmp_size, u32 new_adj_index, u16 new_ecmp_size) @@ -3251,8 +3356,8 @@ static int mlxsw_sp_adj_index_mass_update_vr(struct mlxsw_sp *mlxsw_sp, char raleu_pl[MLXSW_REG_RALEU_LEN]; mlxsw_reg_raleu_pack(raleu_pl, - (enum mlxsw_reg_ralxx_protocol) fib->proto, - fib->vr->id, adj_index, ecmp_size, new_adj_index, + (enum mlxsw_reg_ralxx_protocol) proto, vr_id, + adj_index, ecmp_size, new_adj_index, new_ecmp_size); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raleu), raleu_pl); } @@ -3261,25 +3366,31 @@ static int mlxsw_sp_adj_index_mass_update(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop_group *nh_grp, u32 old_adj_index, u16 old_ecmp_size) { - struct mlxsw_sp_fib_entry *fib_entry; - struct mlxsw_sp_fib *fib = NULL; + struct mlxsw_sp_nexthop_group_info *nhgi = nh_grp->nhgi; + struct mlxsw_sp_nexthop_group_vr_entry *vr_entry; int err; - list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) { - struct mlxsw_sp_nexthop_group_info *nhgi = nh_grp->nhgi; - - if (fib == fib_entry->fib_node->fib) - continue; - fib = fib_entry->fib_node->fib; - err = mlxsw_sp_adj_index_mass_update_vr(mlxsw_sp, fib, + list_for_each_entry(vr_entry, &nh_grp->vr_list, list) { + err = mlxsw_sp_adj_index_mass_update_vr(mlxsw_sp, + vr_entry->key.proto, + vr_entry->key.vr_id, old_adj_index, old_ecmp_size, nhgi->adj_index, nhgi->ecmp_size); if (err) - return err; + goto err_mass_update_vr; } return 0; + +err_mass_update_vr: + list_for_each_entry_continue_reverse(vr_entry, &nh_grp->vr_list, list) + mlxsw_sp_adj_index_mass_update_vr(mlxsw_sp, vr_entry->key.proto, + vr_entry->key.vr_id, + nhgi->adj_index, + nhgi->ecmp_size, + old_adj_index, old_ecmp_size); + return err; } static int __mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, @@ -3608,10 +3719,8 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp, int i, err2, err = 0; u32 old_adj_index; - if (!nhgi->gateway) { - mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp, nh_grp); - return 0; - } + if (!nhgi->gateway) + return mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp, nh_grp); for (i = 0; i < nhgi->count; i++) { nh = &nhgi->nexthops[i]; @@ -4366,6 +4475,11 @@ mlxsw_sp_nexthop_obj_group_create(struct mlxsw_sp *mlxsw_sp, nh_grp = kzalloc(sizeof(*nh_grp), GFP_KERNEL); if (!nh_grp) return ERR_PTR(-ENOMEM); + INIT_LIST_HEAD(&nh_grp->vr_list); + err = rhashtable_init(&nh_grp->vr_ht, + &mlxsw_sp_nexthop_group_vr_ht_params); + if (err) + goto err_nexthop_group_vr_ht_init; INIT_LIST_HEAD(&nh_grp->fib_list); nh_grp->type = MLXSW_SP_NEXTHOP_GROUP_TYPE_OBJ; nh_grp->obj.id = info->id; @@ -4379,6 +4493,8 @@ mlxsw_sp_nexthop_obj_group_create(struct mlxsw_sp *mlxsw_sp, return nh_grp; err_nexthop_group_info_init: + rhashtable_destroy(&nh_grp->vr_ht); +err_nexthop_group_vr_ht_init: kfree(nh_grp); return ERR_PTR(err); } @@ -4391,6 +4507,8 @@ mlxsw_sp_nexthop_obj_group_destroy(struct mlxsw_sp *mlxsw_sp, return; mlxsw_sp_nexthop_obj_group_info_fini(mlxsw_sp, nh_grp); WARN_ON_ONCE(!list_empty(&nh_grp->fib_list)); + WARN_ON_ONCE(!list_empty(&nh_grp->vr_list)); + rhashtable_destroy(&nh_grp->vr_ht); kfree(nh_grp); } @@ -4639,6 +4757,11 @@ mlxsw_sp_nexthop4_group_create(struct mlxsw_sp *mlxsw_sp, struct fib_info *fi) nh_grp = kzalloc(sizeof(*nh_grp), GFP_KERNEL); if (!nh_grp) return ERR_PTR(-ENOMEM); + INIT_LIST_HEAD(&nh_grp->vr_list); + err = rhashtable_init(&nh_grp->vr_ht, + &mlxsw_sp_nexthop_group_vr_ht_params); + if (err) + goto err_nexthop_group_vr_ht_init; INIT_LIST_HEAD(&nh_grp->fib_list); nh_grp->type = MLXSW_SP_NEXTHOP_GROUP_TYPE_IPV4; nh_grp->ipv4.fi = fi; @@ -4660,6 +4783,8 @@ err_nexthop_group_insert: mlxsw_sp_nexthop4_group_info_fini(mlxsw_sp, nh_grp); err_nexthop_group_info_init: fib_info_put(fi); + rhashtable_destroy(&nh_grp->vr_ht); +err_nexthop_group_vr_ht_init: kfree(nh_grp); return ERR_PTR(err); } @@ -4673,6 +4798,8 @@ mlxsw_sp_nexthop4_group_destroy(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_nexthop_group_remove(mlxsw_sp, nh_grp); mlxsw_sp_nexthop4_group_info_fini(mlxsw_sp, nh_grp); fib_info_put(nh_grp->ipv4.fi); + WARN_ON_ONCE(!list_empty(&nh_grp->vr_list)); + rhashtable_destroy(&nh_grp->vr_ht); kfree(nh_grp); } @@ -5367,6 +5494,11 @@ mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp, if (err) goto err_nexthop4_group_get; + err = mlxsw_sp_nexthop_group_vr_link(fib_entry->nh_group, + fib_node->fib); + if (err) + goto err_nexthop_group_vr_link; + err = mlxsw_sp_fib4_entry_type_set(mlxsw_sp, fen_info, fib_entry); if (err) goto err_fib4_entry_type_set; @@ -5382,6 +5514,8 @@ mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp, return fib4_entry; err_fib4_entry_type_set: + mlxsw_sp_nexthop_group_vr_unlink(fib_entry->nh_group, fib_node->fib); +err_nexthop_group_vr_link: mlxsw_sp_nexthop4_group_put(mlxsw_sp, &fib4_entry->common); err_nexthop4_group_get: mlxsw_sp_fib_entry_priv_put(fib_entry->priv); @@ -5393,8 +5527,12 @@ err_fib_entry_priv_create: static void mlxsw_sp_fib4_entry_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib4_entry *fib4_entry) { + struct mlxsw_sp_fib_node *fib_node = fib4_entry->common.fib_node; + fib_info_put(fib4_entry->fi); mlxsw_sp_fib4_entry_type_unset(mlxsw_sp, &fib4_entry->common); + mlxsw_sp_nexthop_group_vr_unlink(fib4_entry->common.nh_group, + fib_node->fib); mlxsw_sp_nexthop4_group_put(mlxsw_sp, &fib4_entry->common); mlxsw_sp_fib_entry_priv_put(fib4_entry->common.priv); kfree(fib4_entry); @@ -5971,6 +6109,11 @@ mlxsw_sp_nexthop6_group_create(struct mlxsw_sp *mlxsw_sp, nh_grp = kzalloc(sizeof(*nh_grp), GFP_KERNEL); if (!nh_grp) return ERR_PTR(-ENOMEM); + INIT_LIST_HEAD(&nh_grp->vr_list); + err = rhashtable_init(&nh_grp->vr_ht, + &mlxsw_sp_nexthop_group_vr_ht_params); + if (err) + goto err_nexthop_group_vr_ht_init; INIT_LIST_HEAD(&nh_grp->fib_list); nh_grp->type = MLXSW_SP_NEXTHOP_GROUP_TYPE_IPV6; @@ -5989,6 +6132,8 @@ mlxsw_sp_nexthop6_group_create(struct mlxsw_sp *mlxsw_sp, err_nexthop_group_insert: mlxsw_sp_nexthop6_group_info_fini(mlxsw_sp, nh_grp); err_nexthop_group_info_init: + rhashtable_destroy(&nh_grp->vr_ht); +err_nexthop_group_vr_ht_init: kfree(nh_grp); return ERR_PTR(err); } @@ -6001,6 +6146,8 @@ mlxsw_sp_nexthop6_group_destroy(struct mlxsw_sp *mlxsw_sp, return; mlxsw_sp_nexthop_group_remove(mlxsw_sp, nh_grp); mlxsw_sp_nexthop6_group_info_fini(mlxsw_sp, nh_grp); + WARN_ON_ONCE(!list_empty(&nh_grp->vr_list)); + rhashtable_destroy(&nh_grp->vr_ht); kfree(nh_grp); } @@ -6060,8 +6207,10 @@ static int mlxsw_sp_nexthop6_group_update(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib6_entry *fib6_entry) { struct mlxsw_sp_nexthop_group *old_nh_grp = fib6_entry->common.nh_group; + struct mlxsw_sp_fib_node *fib_node = fib6_entry->common.fib_node; int err; + mlxsw_sp_nexthop_group_vr_unlink(old_nh_grp, fib_node->fib); fib6_entry->common.nh_group = NULL; list_del(&fib6_entry->common.nexthop_group_node); @@ -6069,6 +6218,11 @@ static int mlxsw_sp_nexthop6_group_update(struct mlxsw_sp *mlxsw_sp, if (err) goto err_nexthop6_group_get; + err = mlxsw_sp_nexthop_group_vr_link(fib6_entry->common.nh_group, + fib_node->fib); + if (err) + goto err_nexthop_group_vr_link; + /* In case this entry is offloaded, then the adjacency index * currently associated with it in the device's table is that * of the old group. Start using the new one instead. @@ -6084,11 +6238,15 @@ static int mlxsw_sp_nexthop6_group_update(struct mlxsw_sp *mlxsw_sp, return 0; err_fib_entry_update: + mlxsw_sp_nexthop_group_vr_unlink(fib6_entry->common.nh_group, + fib_node->fib); +err_nexthop_group_vr_link: mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common); err_nexthop6_group_get: list_add_tail(&fib6_entry->common.nexthop_group_node, &old_nh_grp->fib_list); fib6_entry->common.nh_group = old_nh_grp; + mlxsw_sp_nexthop_group_vr_link(old_nh_grp, fib_node->fib); return err; } @@ -6220,12 +6378,19 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, if (err) goto err_nexthop6_group_get; + err = mlxsw_sp_nexthop_group_vr_link(fib_entry->nh_group, + fib_node->fib); + if (err) + goto err_nexthop_group_vr_link; + mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, rt_arr[0]); fib_entry->fib_node = fib_node; return fib6_entry; +err_nexthop_group_vr_link: + mlxsw_sp_nexthop6_group_put(mlxsw_sp, fib_entry); err_nexthop6_group_get: i = nrt6; err_rt6_create: @@ -6245,6 +6410,10 @@ err_fib_entry_priv_create: static void mlxsw_sp_fib6_entry_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib6_entry *fib6_entry) { + struct mlxsw_sp_fib_node *fib_node = fib6_entry->common.fib_node; + + mlxsw_sp_nexthop_group_vr_unlink(fib6_entry->common.nh_group, + fib_node->fib); mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common); mlxsw_sp_fib6_entry_rt_destroy_all(fib6_entry); WARN_ON(fib6_entry->nrt6); |