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-rw-r--r--vnet/vnet/dpo/load_balance.c61
-rw-r--r--vnet/vnet/fib/fib_path.c8
-rw-r--r--vnet/vnet/fib/fib_test.c865
3 files changed, 681 insertions, 253 deletions
diff --git a/vnet/vnet/dpo/load_balance.c b/vnet/vnet/dpo/load_balance.c
index 8abfc436..a244776f 100644
--- a/vnet/vnet/dpo/load_balance.c
+++ b/vnet/vnet/dpo/load_balance.c
@@ -375,6 +375,19 @@ ip_multipath_normalize_next_hops (load_balance_path_t * raw_next_hops,
n_adj_left -= n;
error += fabs (nf - n);
nhs[i].path_weight = n;
+
+ if (0 == nhs[i].path_weight)
+ {
+ /*
+ * when the weight skew is high (norm is small) and n == nf.
+ * without this correction the path with a low weight would have
+ * no represenation in the load-balanace - don't want that.
+ * If the weight skew is high so the load-balance has many buckets
+ * to allow it. pays ya money takes ya choice.
+ */
+ error = n_adj;
+ break;
+ }
}
nhs[0].path_weight += n_adj_left;
@@ -565,15 +578,45 @@ load_balance_multipath_update (const dpo_id_t *dpo,
}
else
{
- /*
- * we are not crossing the threshold. we can write the new on the
- * old, whether they be inline or not.
- */
- load_balance_fill_buckets(lb, nhs,
- load_balance_get_buckets(lb),
- n_buckets);
- CLIB_MEMORY_BARRIER();
- load_balance_set_n_buckets(lb, n_buckets);
+ if (n_buckets <= LB_NUM_INLINE_BUCKETS)
+ {
+ /*
+ * we are not crossing the threshold and it's still inline buckets.
+ * we can write the new on the old..
+ */
+ load_balance_fill_buckets(lb, nhs,
+ load_balance_get_buckets(lb),
+ n_buckets);
+ CLIB_MEMORY_BARRIER();
+ load_balance_set_n_buckets(lb, n_buckets);
+ }
+ else
+ {
+ /*
+ * we are not crossing the threshold. We need a new bucket array to
+ * hold the increased number of choices.
+ */
+ dpo_id_t *new_buckets, *old_buckets, *tmp_dpo;
+
+ new_buckets = NULL;
+ old_buckets = load_balance_get_buckets(lb);
+
+ vec_validate_aligned(new_buckets,
+ n_buckets - 1,
+ CLIB_CACHE_LINE_BYTES);
+
+ load_balance_fill_buckets(lb, nhs, new_buckets, n_buckets);
+ CLIB_MEMORY_BARRIER();
+ lb->lb_buckets = new_buckets;
+ CLIB_MEMORY_BARRIER();
+ load_balance_set_n_buckets(lb, n_buckets);
+
+ vec_foreach(tmp_dpo, old_buckets)
+ {
+ dpo_reset(tmp_dpo);
+ }
+ vec_free(old_buckets);
+ }
}
/*
diff --git a/vnet/vnet/fib/fib_path.c b/vnet/vnet/fib/fib_path.c
index 98669317..5796539b 100644
--- a/vnet/vnet/fib/fib_path.c
+++ b/vnet/vnet/fib/fib_path.c
@@ -934,6 +934,14 @@ fib_path_create (fib_node_index_t pl_index,
path->fp_nh_proto = nh_proto;
path->fp_via_fib = FIB_NODE_INDEX_INVALID;
path->fp_weight = rpath->frp_weight;
+ if (0 == path->fp_weight)
+ {
+ /*
+ * a weight of 0 is a meaningless value. We could either reject it, and thus force
+ * clients to always use 1, or we can accept it and fixup approrpiately.
+ */
+ path->fp_weight = 1;
+ }
path->fp_cfg_flags = flags;
path->fp_cfg_flags |= fib_path_route_flags_to_cfg_flags(rpath);
diff --git a/vnet/vnet/fib/fib_test.c b/vnet/vnet/fib/fib_test.c
index 358e9126..d2216df5 100644
--- a/vnet/vnet/fib/fib_test.c
+++ b/vnet/vnet/fib/fib_test.c
@@ -236,6 +236,250 @@ fib_test_build_rewrite (u8 *eth_addr)
return (rewrite);
}
+typedef enum fib_test_lb_bucket_type_t_ {
+ FT_LB_LABEL_O_ADJ,
+ FT_LB_LABEL_O_LB,
+ FT_LB_O_LB,
+ FT_LB_SPECIAL,
+ FT_LB_ADJ,
+} fib_test_lb_bucket_type_t;
+
+typedef struct fib_test_lb_bucket_t_ {
+ fib_test_lb_bucket_type_t type;
+
+ union
+ {
+ struct
+ {
+ mpls_eos_bit_t eos;
+ mpls_label_t label;
+ u8 ttl;
+ adj_index_t adj;
+ } label_o_adj;
+ struct
+ {
+ mpls_eos_bit_t eos;
+ mpls_label_t label;
+ u8 ttl;
+ index_t lb;
+ } label_o_lb;
+ struct
+ {
+ index_t adj;
+ } adj;
+ struct
+ {
+ index_t lb;
+ } lb;
+ struct
+ {
+ index_t adj;
+ } special;
+ };
+} fib_test_lb_bucket_t;
+
+#define FIB_TEST_LB(_cond, _comment, _args...) \
+{ \
+ if (!FIB_TEST_I(_cond, _comment, ##_args)) { \
+ return (0); \
+ } \
+}
+
+static int
+fib_test_validate_lb_v (const load_balance_t *lb,
+ u16 n_buckets,
+ va_list ap)
+{
+ const dpo_id_t *dpo;
+ int bucket;
+
+ FIB_TEST_LB((n_buckets == lb->lb_n_buckets), "n_buckets = %d", lb->lb_n_buckets);
+
+ for (bucket = 0; bucket < n_buckets; bucket++)
+ {
+ const fib_test_lb_bucket_t *exp;
+
+ exp = va_arg(ap, fib_test_lb_bucket_t*);
+ dpo = load_balance_get_bucket_i(lb, bucket);
+
+ switch (exp->type)
+ {
+ case FT_LB_LABEL_O_ADJ:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_t hdr;
+ FIB_TEST_LB((DPO_MPLS_LABEL == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+ hdr = clib_net_to_host_u32(mld->mld_hdr.label_exp_s_ttl);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_o_adj.label),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_o_adj.label);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_adj.eos),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_o_adj.label,
+ format_mpls_eos_bit, exp->label_o_adj.eos);
+
+ FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_o_adj.adj == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on adj %d",
+ bucket,
+ exp->label_o_adj.adj);
+ }
+ break;
+ case FT_LB_LABEL_O_LB:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_t hdr;
+
+ FIB_TEST_LB((DPO_MPLS_LABEL == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+ hdr = clib_net_to_host_u32(mld->mld_hdr.label_exp_s_ttl);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_o_lb.label),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_o_lb.label);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_lb.eos),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_o_lb.label,
+ format_mpls_eos_bit, exp->label_o_lb.eos);
+
+ FIB_TEST_LB((DPO_LOAD_BALANCE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_o_lb.lb == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on LB %d",
+ bucket,
+ exp->label_o_lb.lb);
+ }
+ break;
+ case FT_LB_ADJ:
+ FIB_TEST_I(((DPO_ADJACENCY == dpo->dpoi_type) ||
+ (DPO_ADJACENCY_INCOMPLETE == dpo->dpoi_type)),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ case FT_LB_O_LB:
+ FIB_TEST_I((DPO_LOAD_BALANCE == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->lb.lb == dpo->dpoi_index),
+ "bucket %d stacks on lb %d",
+ bucket,
+ exp->lb.lb);
+ break;
+ case FT_LB_SPECIAL:
+ FIB_TEST_I((DPO_DROP == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->special.adj == dpo->dpoi_index),
+ "bucket %d stacks on drop %d",
+ bucket,
+ exp->special.adj);
+ break;
+ }
+ }
+ return (!0);
+}
+
+static int
+fib_test_validate_entry (fib_node_index_t fei,
+ fib_forward_chain_type_t fct,
+ u16 n_buckets,
+ ...)
+{
+ const load_balance_t *lb;
+ dpo_id_t dpo = DPO_INVALID;
+ fib_prefix_t pfx;
+ index_t fw_lbi;
+ u32 fib_index;
+ va_list ap;
+ int res;
+
+ va_start(ap, n_buckets);
+
+ fib_entry_get_prefix(fei, &pfx);
+ fib_index = fib_entry_get_fib_index(fei);
+ fib_entry_contribute_forwarding(fei, fct, &dpo);
+
+ FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type),
+ "Entry links to %U",
+ format_dpo_type, dpo.dpoi_type);
+ lb = load_balance_get(dpo.dpoi_index);
+
+ res = fib_test_validate_lb_v(lb, n_buckets, ap);
+
+ /*
+ * ensure that the LB contributed by the entry is the
+ * same as the LB in the forwarding tables
+ */
+ switch (pfx.fp_proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx.fp_addr.ip4);
+ break;
+ case FIB_PROTOCOL_IP6:
+ fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx.fp_addr.ip6);
+ break;
+ case FIB_PROTOCOL_MPLS:
+ {
+ mpls_unicast_header_t hdr = {
+ .label_exp_s_ttl = 0,
+ };
+
+ vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx.fp_label);
+ vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx.fp_eos);
+ hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl);
+
+ fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr);
+ break;
+ }
+ default:
+ fw_lbi = 0;
+ }
+ FIB_TEST_LB((fw_lbi == dpo.dpoi_index),
+ "Contributed LB = FW LB: %U\n %U",
+ format_load_balance, fw_lbi, 0,
+ format_load_balance, dpo.dpoi_index, 0);
+
+ dpo_reset(&dpo);
+
+ va_end(ap);
+
+ return (res);
+}
+
static void
fib_test_v4 (void)
{
@@ -1154,6 +1398,383 @@ fib_test_v4 (void)
"RPF list for 1.2.3.4/32 contains both adjs");
/*
+ * Test UCMP with a large weight skew - this produces load-balance objects with large
+ * numbers of buckets to accommodate the skew. By updating said load-balances we are
+ * laso testing the LB in placce modify code when number of buckets is large.
+ */
+ fib_prefix_t pfx_6_6_6_6_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 1.1.1.1/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x06060606),
+ },
+ };
+ fib_test_lb_bucket_t ip_6_6_6_6_o_10_10_10_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_01,
+ },
+ };
+ fib_test_lb_bucket_t ip_6_6_6_6_o_10_10_10_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_02,
+ },
+ };
+ fib_test_lb_bucket_t ip_6_6_6_6_o_12_12_12_12 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_12_12_12_12,
+ },
+ };
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ FIB_PROTOCOL_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 0, // zero weigth
+ MPLS_LABEL_INVALID,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_6_6_6_6_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ FIB_PROTOCOL_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ MPLS_LABEL_INVALID,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 64,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ FIB_PROTOCOL_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ MPLS_LABEL_INVALID,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 128,
+ &ip_6_6_6_6_o_10_10_10_1,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_PROTOCOL_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 64,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_2,
+ &ip_6_6_6_6_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_PROTOCOL_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_6_6_6_6_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1");
+
+ fib_table_entry_delete(fib_index, &pfx_6_6_6_6_s_32, FIB_SOURCE_API);
+
+ /*
* A recursive via the two unequal cost entries
*/
fib_prefix_t bgp_44_s_32 = {
@@ -4733,250 +5354,6 @@ fib_test_ae (void)
adj_nbr_db_size());
}
-typedef enum fib_test_lb_bucket_type_t_ {
- FT_LB_LABEL_O_ADJ,
- FT_LB_LABEL_O_LB,
- FT_LB_O_LB,
- FT_LB_SPECIAL,
- FT_LB_ADJ,
-} fib_test_lb_bucket_type_t;
-
-typedef struct fib_test_lb_bucket_t_ {
- fib_test_lb_bucket_type_t type;
-
- union
- {
- struct
- {
- mpls_eos_bit_t eos;
- mpls_label_t label;
- u8 ttl;
- adj_index_t adj;
- } label_o_adj;
- struct
- {
- mpls_eos_bit_t eos;
- mpls_label_t label;
- u8 ttl;
- index_t lb;
- } label_o_lb;
- struct
- {
- index_t adj;
- } adj;
- struct
- {
- index_t lb;
- } lb;
- struct
- {
- index_t adj;
- } special;
- };
-} fib_test_lb_bucket_t;
-
-#define FIB_TEST_LB(_cond, _comment, _args...) \
-{ \
- if (!FIB_TEST_I(_cond, _comment, ##_args)) { \
- return (0); \
- } \
-}
-
-static int
-fib_test_validate_lb_v (const load_balance_t *lb,
- u16 n_buckets,
- va_list ap)
-{
- const dpo_id_t *dpo;
- int bucket;
-
- FIB_TEST_LB((n_buckets == lb->lb_n_buckets), "n_buckets = %d", lb->lb_n_buckets);
-
- for (bucket = 0; bucket < n_buckets; bucket++)
- {
- const fib_test_lb_bucket_t *exp;
-
- exp = va_arg(ap, fib_test_lb_bucket_t*);
- dpo = load_balance_get_bucket_i(lb, bucket);
-
- switch (exp->type)
- {
- case FT_LB_LABEL_O_ADJ:
- {
- const mpls_label_dpo_t *mld;
- mpls_label_t hdr;
- FIB_TEST_LB((DPO_MPLS_LABEL == dpo->dpoi_type),
- "bucket %d stacks on %U",
- bucket,
- format_dpo_type, dpo->dpoi_type);
-
- mld = mpls_label_dpo_get(dpo->dpoi_index);
- hdr = clib_net_to_host_u32(mld->mld_hdr.label_exp_s_ttl);
-
- FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
- exp->label_o_adj.label),
- "bucket %d stacks on label %d",
- bucket,
- exp->label_o_adj.label);
-
- FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
- exp->label_o_adj.eos),
- "bucket %d stacks on label %d %U",
- bucket,
- exp->label_o_adj.label,
- format_mpls_eos_bit, exp->label_o_adj.eos);
-
- FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
- "bucket %d label stacks on %U",
- bucket,
- format_dpo_type, mld->mld_dpo.dpoi_type);
-
- FIB_TEST_LB((exp->label_o_adj.adj == mld->mld_dpo.dpoi_index),
- "bucket %d label stacks on adj %d",
- bucket,
- exp->label_o_adj.adj);
- }
- break;
- case FT_LB_LABEL_O_LB:
- {
- const mpls_label_dpo_t *mld;
- mpls_label_t hdr;
-
- FIB_TEST_LB((DPO_MPLS_LABEL == dpo->dpoi_type),
- "bucket %d stacks on %U",
- bucket,
- format_dpo_type, dpo->dpoi_type);
-
- mld = mpls_label_dpo_get(dpo->dpoi_index);
- hdr = clib_net_to_host_u32(mld->mld_hdr.label_exp_s_ttl);
-
- FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
- exp->label_o_lb.label),
- "bucket %d stacks on label %d",
- bucket,
- exp->label_o_lb.label);
-
- FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
- exp->label_o_lb.eos),
- "bucket %d stacks on label %d %U",
- bucket,
- exp->label_o_lb.label,
- format_mpls_eos_bit, exp->label_o_lb.eos);
-
- FIB_TEST_LB((DPO_LOAD_BALANCE == mld->mld_dpo.dpoi_type),
- "bucket %d label stacks on %U",
- bucket,
- format_dpo_type, mld->mld_dpo.dpoi_type);
-
- FIB_TEST_LB((exp->label_o_lb.lb == mld->mld_dpo.dpoi_index),
- "bucket %d label stacks on LB %d",
- bucket,
- exp->label_o_lb.lb);
- }
- break;
- case FT_LB_ADJ:
- FIB_TEST_I(((DPO_ADJACENCY == dpo->dpoi_type) ||
- (DPO_ADJACENCY_INCOMPLETE == dpo->dpoi_type)),
- "bucket %d stacks on %U",
- bucket,
- format_dpo_type, dpo->dpoi_type);
- FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
- "bucket %d stacks on adj %d",
- bucket,
- exp->adj.adj);
- break;
- case FT_LB_O_LB:
- FIB_TEST_I((DPO_LOAD_BALANCE == dpo->dpoi_type),
- "bucket %d stacks on %U",
- bucket,
- format_dpo_type, dpo->dpoi_type);
- FIB_TEST_LB((exp->lb.lb == dpo->dpoi_index),
- "bucket %d stacks on lb %d",
- bucket,
- exp->lb.lb);
- break;
- case FT_LB_SPECIAL:
- FIB_TEST_I((DPO_DROP == dpo->dpoi_type),
- "bucket %d stacks on %U",
- bucket,
- format_dpo_type, dpo->dpoi_type);
- FIB_TEST_LB((exp->special.adj == dpo->dpoi_index),
- "bucket %d stacks on drop %d",
- bucket,
- exp->special.adj);
- break;
- }
- }
- return (!0);
-}
-
-static int
-fib_test_validate_entry (fib_node_index_t fei,
- fib_forward_chain_type_t fct,
- u16 n_buckets,
- ...)
-{
- const load_balance_t *lb;
- dpo_id_t dpo = DPO_INVALID;
- fib_prefix_t pfx;
- index_t fw_lbi;
- u32 fib_index;
- va_list ap;
- int res;
-
- va_start(ap, n_buckets);
-
- fib_entry_get_prefix(fei, &pfx);
- fib_index = fib_entry_get_fib_index(fei);
- fib_entry_contribute_forwarding(fei, fct, &dpo);
-
- FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type),
- "Entry links to %U",
- format_dpo_type, dpo.dpoi_type);
- lb = load_balance_get(dpo.dpoi_index);
-
- res = fib_test_validate_lb_v(lb, n_buckets, ap);
-
- /*
- * ensure that the LB contributed by the entry is the
- * same as the LB in the forwarding tables
- */
- switch (pfx.fp_proto)
- {
- case FIB_PROTOCOL_IP4:
- fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx.fp_addr.ip4);
- break;
- case FIB_PROTOCOL_IP6:
- fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx.fp_addr.ip6);
- break;
- case FIB_PROTOCOL_MPLS:
- {
- mpls_unicast_header_t hdr = {
- .label_exp_s_ttl = 0,
- };
-
- vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx.fp_label);
- vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx.fp_eos);
- hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl);
-
- fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr);
- break;
- }
- default:
- fw_lbi = 0;
- }
- FIB_TEST_LB((fw_lbi == dpo.dpoi_index),
- "Contributed LB = FW LB: %U\n %U",
- format_load_balance, fw_lbi, 0,
- format_load_balance, dpo.dpoi_index, 0);
-
- dpo_reset(&dpo);
-
- va_end(ap);
-
- return (res);
-}
-
/*
* Test the recursive route route handling for GRE tunnels
*/