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-rw-r--r--src/vnet/cop/ip4_whitelist.c9
-rw-r--r--src/vnet/dpo/load_balance.c6
-rw-r--r--src/vnet/dpo/lookup_dpo.c4
-rw-r--r--src/vnet/fib/fib.c2
-rw-r--r--src/vnet/fib/fib_entry.c4
-rw-r--r--src/vnet/fib/fib_path.c1
-rw-r--r--src/vnet/fib/fib_table.c24
-rw-r--r--src/vnet/fib/fib_table.h12
-rw-r--r--src/vnet/fib/fib_test.c6
-rw-r--r--src/vnet/fib/ip4_fib.c60
-rw-r--r--src/vnet/fib/ip4_fib.h35
-rw-r--r--src/vnet/fib/ip6_fib.c18
-rw-r--r--src/vnet/fib/ip6_fib.h2
-rw-r--r--src/vnet/fib/mpls_fib.c21
-rw-r--r--src/vnet/fib/mpls_fib.h28
-rw-r--r--src/vnet/ip/ip4.h29
-rw-r--r--src/vnet/ip/ip4_forward.c21
-rw-r--r--src/vnet/ip/ip4_mtrie.c611
-rw-r--r--src/vnet/ip/ip4_mtrie.h106
-rw-r--r--src/vnet/ip/ip4_packet.h1
-rw-r--r--src/vnet/ip/ip4_source_check.c8
-rw-r--r--src/vnet/ip/ip6.h3
-rw-r--r--src/vnet/ip/ip_api.c43
-rw-r--r--src/vnet/mpls/interface.c1
-rw-r--r--src/vnet/mpls/mpls.h26
-rw-r--r--src/vnet/mpls/mpls_api.c38
-rw-r--r--src/vpp/api/api.c6
-rw-r--r--src/vpp/stats/stats.c8
28 files changed, 720 insertions, 413 deletions
diff --git a/src/vnet/cop/ip4_whitelist.c b/src/vnet/cop/ip4_whitelist.c
index ccb9dc03..6ef3d7d7 100644
--- a/src/vnet/cop/ip4_whitelist.c
+++ b/src/vnet/cop/ip4_whitelist.c
@@ -128,9 +128,6 @@ ip4_cop_whitelist_node_fn (vlib_main_t * vm,
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
- &ip0->src_address, 1);
-
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
&ip0->src_address, 2);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
@@ -167,9 +164,6 @@ ip4_cop_whitelist_node_fn (vlib_main_t * vm,
leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, &ip1->src_address);
leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1,
- &ip1->src_address, 1);
-
- leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1,
&ip1->src_address, 2);
leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1,
@@ -264,9 +258,6 @@ ip4_cop_whitelist_node_fn (vlib_main_t * vm,
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
- &ip0->src_address, 1);
-
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
&ip0->src_address, 2);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0,
diff --git a/src/vnet/dpo/load_balance.c b/src/vnet/dpo/load_balance.c
index d5e98e4e..6b0eda0e 100644
--- a/src/vnet/dpo/load_balance.c
+++ b/src/vnet/dpo/load_balance.c
@@ -827,14 +827,18 @@ const static char* const * const load_balance_nodes[DPO_PROTO_NUM] =
void
load_balance_module_init (void)
{
+ index_t lbi;
+
dpo_register(DPO_LOAD_BALANCE, &lb_vft, load_balance_nodes);
/*
* Special LB with index zero. we need to define this since the v4 mtrie
* assumes an index of 0 implies the ply is empty. therefore all 'real'
* adjs need a non-zero index.
+ * This should never be used, but just in case, stack it on a drop.
*/
- load_balance_create(0, DPO_PROTO_IP4, 0);
+ lbi = load_balance_create(1, DPO_PROTO_IP4, 0);
+ load_balance_set_bucket(lbi, 0, drop_dpo_get(DPO_PROTO_IP4));
load_balance_map_module_init();
}
diff --git a/src/vnet/dpo/lookup_dpo.c b/src/vnet/dpo/lookup_dpo.c
index 3726c8fe..e94e871c 100644
--- a/src/vnet/dpo/lookup_dpo.c
+++ b/src/vnet/dpo/lookup_dpo.c
@@ -211,7 +211,6 @@ ip4_src_fib_lookup_one (u32 src_fib_index0,
mtrie0 = &ip4_fib_get (src_fib_index0)->mtrie;
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, addr0);
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, addr0, 1);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, addr0, 2);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, addr0, 3);
@@ -235,9 +234,6 @@ ip4_src_fib_lookup_two (u32 src_fib_index0,
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, addr0);
leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, addr1);
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, addr0, 1);
- leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, addr1, 1);
-
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, addr0, 2);
leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, addr1, 2);
diff --git a/src/vnet/fib/fib.c b/src/vnet/fib/fib.c
index 413f93e8..b430e113 100644
--- a/src/vnet/fib/fib.c
+++ b/src/vnet/fib/fib.c
@@ -28,6 +28,8 @@ fib_module_init (vlib_main_t * vm)
return (error);
if ((error = vlib_call_init_function (vm, adj_module_init)))
return (error);
+ if ((error = vlib_call_init_function (vm, ip4_mtrie_module_init)))
+ return (error);
fib_entry_module_init();
fib_entry_src_module_init();
diff --git a/src/vnet/fib/fib_entry.c b/src/vnet/fib/fib_entry.c
index 25005e11..6ac5461d 100644
--- a/src/vnet/fib/fib_entry.c
+++ b/src/vnet/fib/fib_entry.c
@@ -924,10 +924,10 @@ fib_entry_path_remove (fib_node_index_t fib_entry_index,
/*
* no more sources left. this entry is toast.
*/
- fib_entry_src_action_uninstall(fib_entry);
fib_entry = fib_entry_post_flag_update_actions(fib_entry,
source,
bflags);
+ fib_entry_src_action_uninstall(fib_entry);
return (FIB_ENTRY_SRC_FLAG_NONE);
}
@@ -1014,10 +1014,10 @@ fib_entry_special_remove (fib_node_index_t fib_entry_index,
/*
* no more sources left. this entry is toast.
*/
- fib_entry_src_action_uninstall(fib_entry);
fib_entry = fib_entry_post_flag_update_actions(fib_entry,
source,
bflags);
+ fib_entry_src_action_uninstall(fib_entry);
return (FIB_ENTRY_SRC_FLAG_NONE);
}
diff --git a/src/vnet/fib/fib_path.c b/src/vnet/fib/fib_path.c
index 3ed309f3..928a9d43 100644
--- a/src/vnet/fib/fib_path.c
+++ b/src/vnet/fib/fib_path.c
@@ -32,6 +32,7 @@
#include <vnet/fib/fib_path_list.h>
#include <vnet/fib/fib_internal.h>
#include <vnet/fib/fib_urpf_list.h>
+#include <vnet/fib/mpls_fib.h>
/**
* Enurmeration of path types
diff --git a/src/vnet/fib/fib_table.c b/src/vnet/fib/fib_table.c
index 7818d02e..6c3162e7 100644
--- a/src/vnet/fib/fib_table.c
+++ b/src/vnet/fib/fib_table.c
@@ -47,7 +47,7 @@ fib_table_lookup_i (fib_table_t *fib_table,
switch (prefix->fp_proto)
{
case FIB_PROTOCOL_IP4:
- return (ip4_fib_table_lookup(&fib_table->v4,
+ return (ip4_fib_table_lookup(ip4_fib_get(fib_table->ft_index),
&prefix->fp_addr.ip4,
prefix->fp_len));
case FIB_PROTOCOL_IP6:
@@ -55,7 +55,7 @@ fib_table_lookup_i (fib_table_t *fib_table,
&prefix->fp_addr.ip6,
prefix->fp_len));
case FIB_PROTOCOL_MPLS:
- return (mpls_fib_table_lookup(&fib_table->mpls,
+ return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
prefix->fp_label,
prefix->fp_eos));
}
@@ -76,7 +76,7 @@ fib_table_lookup_exact_match_i (const fib_table_t *fib_table,
switch (prefix->fp_proto)
{
case FIB_PROTOCOL_IP4:
- return (ip4_fib_table_lookup_exact_match(&fib_table->v4,
+ return (ip4_fib_table_lookup_exact_match(ip4_fib_get(fib_table->ft_index),
&prefix->fp_addr.ip4,
prefix->fp_len));
case FIB_PROTOCOL_IP6:
@@ -84,7 +84,7 @@ fib_table_lookup_exact_match_i (const fib_table_t *fib_table,
&prefix->fp_addr.ip6,
prefix->fp_len));
case FIB_PROTOCOL_MPLS:
- return (mpls_fib_table_lookup(&fib_table->mpls,
+ return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
prefix->fp_label,
prefix->fp_eos));
}
@@ -148,7 +148,7 @@ fib_table_entry_remove (fib_table_t *fib_table,
switch (prefix->fp_proto)
{
case FIB_PROTOCOL_IP4:
- ip4_fib_table_entry_remove(&fib_table->v4,
+ ip4_fib_table_entry_remove(ip4_fib_get(fib_table->ft_index),
&prefix->fp_addr.ip4,
prefix->fp_len);
break;
@@ -158,7 +158,7 @@ fib_table_entry_remove (fib_table_t *fib_table,
prefix->fp_len);
break;
case FIB_PROTOCOL_MPLS:
- mpls_fib_table_entry_remove(&fib_table->mpls,
+ mpls_fib_table_entry_remove(mpls_fib_get(fib_table->ft_index),
prefix->fp_label,
prefix->fp_eos);
break;
@@ -208,7 +208,7 @@ fib_table_entry_insert (fib_table_t *fib_table,
switch (prefix->fp_proto)
{
case FIB_PROTOCOL_IP4:
- ip4_fib_table_entry_insert(&fib_table->v4,
+ ip4_fib_table_entry_insert(ip4_fib_get(fib_table->ft_index),
&prefix->fp_addr.ip4,
prefix->fp_len,
fib_entry_index);
@@ -220,7 +220,7 @@ fib_table_entry_insert (fib_table_t *fib_table,
fib_entry_index);
break;
case FIB_PROTOCOL_MPLS:
- mpls_fib_table_entry_insert(&fib_table->mpls,
+ mpls_fib_table_entry_insert(mpls_fib_get(fib_table->ft_index),
prefix->fp_label,
prefix->fp_eos,
fib_entry_index);
@@ -270,7 +270,9 @@ fib_table_fwding_dpo_remove (u32 fib_index,
return (ip4_fib_table_fwding_dpo_remove(ip4_fib_get(fib_index),
&prefix->fp_addr.ip4,
prefix->fp_len,
- dpo));
+ dpo,
+ fib_table_get_less_specific(fib_index,
+ prefix)));
case FIB_PROTOCOL_IP6:
return (ip6_fib_table_fwding_dpo_remove(fib_index,
&prefix->fp_addr.ip6,
@@ -1034,13 +1036,13 @@ fib_table_destroy (fib_table_t *fib_table)
switch (fib_table->ft_proto)
{
case FIB_PROTOCOL_IP4:
- ip4_fib_table_destroy(&fib_table->v4);
+ ip4_fib_table_destroy(fib_table->ft_index);
break;
case FIB_PROTOCOL_IP6:
ip6_fib_table_destroy(fib_table->ft_index);
break;
case FIB_PROTOCOL_MPLS:
- mpls_fib_table_destroy(&fib_table->mpls);
+ mpls_fib_table_destroy(fib_table->ft_index);
break;
}
}
diff --git a/src/vnet/fib/fib_table.h b/src/vnet/fib/fib_table.h
index e7e66acb..b310aea6 100644
--- a/src/vnet/fib/fib_table.h
+++ b/src/vnet/fib/fib_table.h
@@ -29,18 +29,6 @@
typedef struct fib_table_t_
{
/**
- * A union of the protocol specific FIBs that provide the
- * underlying LPM mechanism.
- * This element is first in the struct so that it is in the
- * first cache line.
- */
- union {
- ip4_fib_t v4;
- ip6_fib_t v6;
- mpls_fib_t mpls;
- };
-
- /**
* Which protocol this table serves. Used to switch on the union above.
*/
fib_protocol_t ft_proto;
diff --git a/src/vnet/fib/fib_test.c b/src/vnet/fib/fib_test.c
index 1a9cce24..92141ddf 100644
--- a/src/vnet/fib/fib_test.c
+++ b/src/vnet/fib/fib_test.c
@@ -40,8 +40,6 @@
fformat(stderr, "FAIL:%d: " _comment "\n", \
__LINE__, ##_args); \
} else { \
- fformat(stderr, "PASS:%d: " _comment "\n", \
- __LINE__, ##_args); \
} \
_evald; \
})
@@ -5727,7 +5725,7 @@ fib_test_label (void)
&a_o_10_10_11_1,
&adj_o_10_10_11_2),
"1.1.1.1/32 LB 2 buckets via: "
- "adj over 10.10.11.1",
+ "adj over 10.10.11.1, "
"adj-v4 over 10.10.11.2");
fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
@@ -5738,7 +5736,7 @@ fib_test_label (void)
&a_o_10_10_11_1,
&adj_o_10_10_11_2),
"24001/eos LB 2 buckets via: "
- "adj over 10.10.11.1",
+ "adj over 10.10.11.1, "
"adj-v4 over 10.10.11.2");
fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
diff --git a/src/vnet/fib/ip4_fib.c b/src/vnet/fib/ip4_fib.c
index a7915620..98d4e52f 100644
--- a/src/vnet/fib/ip4_fib.c
+++ b/src/vnet/fib/ip4_fib.c
@@ -104,29 +104,35 @@ static u32
ip4_create_fib_with_table_id (u32 table_id)
{
fib_table_t *fib_table;
+ ip4_fib_t *v4_fib;
pool_get_aligned(ip4_main.fibs, fib_table, CLIB_CACHE_LINE_BYTES);
memset(fib_table, 0, sizeof(*fib_table));
+ pool_get_aligned(ip4_main.v4_fibs, v4_fib, CLIB_CACHE_LINE_BYTES);
+
+ ASSERT((fib_table - ip4_main.fibs) ==
+ (v4_fib - ip4_main.v4_fibs));
+
fib_table->ft_proto = FIB_PROTOCOL_IP4;
fib_table->ft_index =
- fib_table->v4.index =
+ v4_fib->index =
(fib_table - ip4_main.fibs);
hash_set (ip4_main.fib_index_by_table_id, table_id, fib_table->ft_index);
fib_table->ft_table_id =
- fib_table->v4.table_id =
+ v4_fib->table_id =
table_id;
fib_table->ft_flow_hash_config =
- fib_table->v4.flow_hash_config =
+ v4_fib->flow_hash_config =
IP_FLOW_HASH_DEFAULT;
- fib_table->v4.fwd_classify_table_index = ~0;
- fib_table->v4.rev_classify_table_index = ~0;
+ v4_fib->fwd_classify_table_index = ~0;
+ v4_fib->rev_classify_table_index = ~0;
fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_IP4);
- ip4_mtrie_init(&fib_table->v4.mtrie);
+ ip4_mtrie_init(&v4_fib->mtrie);
/*
* add the special entries into the new FIB
@@ -151,9 +157,10 @@ ip4_create_fib_with_table_id (u32 table_id)
}
void
-ip4_fib_table_destroy (ip4_fib_t *fib)
+ip4_fib_table_destroy (u32 fib_index)
{
- fib_table_t *fib_table = (fib_table_t*)fib;
+ fib_table_t *fib_table = pool_elt_at_index(ip4_main.fibs, fib_index);
+ ip4_fib_t *v4_fib = pool_elt_at_index(ip4_main.v4_fibs, fib_index);
int ii;
/*
@@ -185,6 +192,10 @@ ip4_fib_table_destroy (ip4_fib_t *fib)
{
hash_unset (ip4_main.fib_index_by_table_id, fib_table->ft_table_id);
}
+
+ ip4_mtrie_free(&v4_fib->mtrie);
+
+ pool_put(ip4_main.v4_fibs, v4_fib);
pool_put(ip4_main.fibs, fib_table);
}
@@ -367,16 +378,33 @@ ip4_fib_table_fwding_dpo_update (ip4_fib_t *fib,
u32 len,
const dpo_id_t *dpo)
{
- ip4_fib_mtrie_add_del_route(fib, *addr, len, dpo->dpoi_index, 0); // ADD
+ ip4_fib_mtrie_route_add(&fib->mtrie, addr, len, dpo->dpoi_index);
}
void
ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib,
const ip4_address_t *addr,
u32 len,
- const dpo_id_t *dpo)
+ const dpo_id_t *dpo,
+ u32 cover_index)
{
- ip4_fib_mtrie_add_del_route(fib, *addr, len, dpo->dpoi_index, 1); // DELETE
+ fib_prefix_t cover_prefix = {
+ .fp_len = 0,
+ };
+ const dpo_id_t *cover_dpo;
+
+ /*
+ * We need to pass the MTRIE the LB index and address length of the
+ * covering prefix, so it can fill the plys with the correct replacement
+ * for the entry being removed
+ */
+ fib_entry_get_prefix(cover_index, &cover_prefix);
+ cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);
+
+ ip4_fib_mtrie_route_del(&fib->mtrie,
+ addr, len, dpo->dpoi_index,
+ cover_prefix.fp_len,
+ cover_dpo->dpoi_index);
}
void
@@ -498,7 +526,7 @@ ip4_show_fib (vlib_main_t * vm,
pool_foreach (fib_table, im4->fibs,
({
- ip4_fib_t *fib = &fib_table->v4;
+ ip4_fib_t *fib = pool_elt_at_index(im4->v4_fibs, fib_table->ft_index);
if (table_id >= 0 && table_id != (int)fib->table_id)
continue;
@@ -523,6 +551,11 @@ ip4_show_fib (vlib_main_t * vm,
}
continue;
}
+ if (mtrie)
+ {
+ vlib_cli_output (vm, "%U", format_ip4_fib_mtrie, &fib->mtrie);
+ continue;
+ }
if (!matching)
{
@@ -532,9 +565,6 @@ ip4_show_fib (vlib_main_t * vm,
{
ip4_fib_table_show_one(fib, vm, &matching_address, matching_mask);
}
-
- if (mtrie)
- vlib_cli_output (vm, "%U", format_ip4_fib_mtrie, &fib->mtrie);
}));
return 0;
diff --git a/src/vnet/fib/ip4_fib.h b/src/vnet/fib/ip4_fib.h
index 243fd77f..4cf9e58a 100644
--- a/src/vnet/fib/ip4_fib.h
+++ b/src/vnet/fib/ip4_fib.h
@@ -34,6 +34,33 @@
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
+#include <vnet/ip/ip4_mtrie.h>
+
+typedef struct ip4_fib_t_
+{
+ /**
+ * Mtrie for fast lookups. Hash is used to maintain overlapping prefixes.
+ * First member so it's in the first cacheline.
+ */
+ ip4_fib_mtrie_t mtrie;
+
+ /* Hash table for each prefix length mapping. */
+ uword *fib_entry_by_dst_address[33];
+
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+
+ /* Index into FIB vector. */
+ u32 index;
+
+ /* flow hash configuration */
+ flow_hash_config_t flow_hash_config;
+
+ /* N-tuple classifier indices */
+ u32 fwd_classify_table_index;
+ u32 rev_classify_table_index;
+
+} ip4_fib_t;
extern fib_node_index_t ip4_fib_table_lookup(const ip4_fib_t *fib,
const ip4_address_t *addr,
@@ -50,7 +77,7 @@ extern void ip4_fib_table_entry_insert(ip4_fib_t *fib,
const ip4_address_t *addr,
u32 len,
fib_node_index_t fib_entry_index);
-extern void ip4_fib_table_destroy(ip4_fib_t *fib);
+extern void ip4_fib_table_destroy(u32 fib_index);
extern void ip4_fib_table_fwding_dpo_update(ip4_fib_t *fib,
const ip4_address_t *addr,
@@ -60,7 +87,8 @@ extern void ip4_fib_table_fwding_dpo_update(ip4_fib_t *fib,
extern void ip4_fib_table_fwding_dpo_remove(ip4_fib_t *fib,
const ip4_address_t *addr,
u32 len,
- const dpo_id_t *dpo);
+ const dpo_id_t *dpo,
+ fib_node_index_t cover_index);
extern u32 ip4_fib_table_lookup_lb (ip4_fib_t *fib,
const ip4_address_t * dst);
@@ -79,7 +107,7 @@ extern void ip4_fib_table_walk(ip4_fib_t *fib,
static inline ip4_fib_t *
ip4_fib_get (u32 index)
{
- return (&(pool_elt_at_index(ip4_main.fibs, index)->v4));
+ return (pool_elt_at_index(ip4_main.v4_fibs, index));
}
always_inline u32
@@ -134,7 +162,6 @@ ip4_fib_forwarding_lookup (u32 fib_index,
mtrie = &ip4_fib_get(fib_index)->mtrie;
leaf = ip4_fib_mtrie_lookup_step_one (mtrie, addr);
- leaf = ip4_fib_mtrie_lookup_step (mtrie, leaf, addr, 1);
leaf = ip4_fib_mtrie_lookup_step (mtrie, leaf, addr, 2);
leaf = ip4_fib_mtrie_lookup_step (mtrie, leaf, addr, 3);
diff --git a/src/vnet/fib/ip6_fib.c b/src/vnet/fib/ip6_fib.c
index 343ff55e..0ee029d3 100644
--- a/src/vnet/fib/ip6_fib.c
+++ b/src/vnet/fib/ip6_fib.c
@@ -55,22 +55,29 @@ static u32
create_fib_with_table_id (u32 table_id)
{
fib_table_t *fib_table;
+ ip6_fib_t *v6_fib;
pool_get_aligned(ip6_main.fibs, fib_table, CLIB_CACHE_LINE_BYTES);
+ pool_get_aligned(ip6_main.v6_fibs, v6_fib, CLIB_CACHE_LINE_BYTES);
+
memset(fib_table, 0, sizeof(*fib_table));
+ memset(v6_fib, 0, sizeof(*v6_fib));
+ ASSERT((fib_table - ip6_main.fibs) ==
+ (v6_fib - ip6_main.v6_fibs));
+
fib_table->ft_proto = FIB_PROTOCOL_IP6;
fib_table->ft_index =
- fib_table->v6.index =
- (fib_table - ip6_main.fibs);
+ v6_fib->index =
+ (fib_table - ip6_main.fibs);
hash_set(ip6_main.fib_index_by_table_id, table_id, fib_table->ft_index);
fib_table->ft_table_id =
- fib_table->v6.table_id =
+ v6_fib->table_id =
table_id;
fib_table->ft_flow_hash_config =
- fib_table->v6.flow_hash_config =
+ v6_fib->flow_hash_config =
IP_FLOW_HASH_DEFAULT;
vnet_ip6_fib_init(fib_table->ft_index);
@@ -188,6 +195,7 @@ ip6_fib_table_destroy (u32 fib_index)
{
hash_unset (ip6_main.fib_index_by_table_id, fib_table->ft_table_id);
}
+ pool_put_index(ip6_main.v6_fibs, fib_table->ft_index);
pool_put(ip6_main.fibs, fib_table);
}
@@ -620,7 +628,7 @@ ip6_show_fib (vlib_main_t * vm,
pool_foreach (fib_table, im6->fibs,
({
- fib = &(fib_table->v6);
+ fib = pool_elt_at_index(im6->v6_fibs, fib_table->ft_index);
if (table_id >= 0 && table_id != (int)fib->table_id)
continue;
if (fib_index != ~0 && fib_index != (int)fib->index)
diff --git a/src/vnet/fib/ip6_fib.h b/src/vnet/fib/ip6_fib.h
index af864a75..e2f28452 100644
--- a/src/vnet/fib/ip6_fib.h
+++ b/src/vnet/fib/ip6_fib.h
@@ -115,7 +115,7 @@ static inline ip6_fib_t *
ip6_fib_get (fib_node_index_t index)
{
ASSERT(!pool_is_free_index(ip6_main.fibs, index));
- return (&pool_elt_at_index (ip6_main.fibs, index)->v6);
+ return (pool_elt_at_index (ip6_main.v6_fibs, index));
}
static inline
diff --git a/src/vnet/fib/mpls_fib.c b/src/vnet/fib/mpls_fib.c
index 5cd0fd23..4b2b76ea 100644
--- a/src/vnet/fib/mpls_fib.c
+++ b/src/vnet/fib/mpls_fib.c
@@ -97,11 +97,15 @@ mpls_fib_create_with_table_id (u32 table_id)
int i;
pool_get_aligned(mpls_main.fibs, fib_table, CLIB_CACHE_LINE_BYTES);
+ pool_get_aligned(mpls_main.mpls_fibs, mf, CLIB_CACHE_LINE_BYTES);
+
+ ASSERT((fib_table - mpls_main.fibs) ==
+ (mf - mpls_main.mpls_fibs));
+
memset(fib_table, 0, sizeof(*fib_table));
fib_table->ft_proto = FIB_PROTOCOL_MPLS;
- fib_table->ft_index =
- (fib_table - mpls_main.fibs);
+ fib_table->ft_index = (fib_table - mpls_main.fibs);
hash_set (mpls_main.fib_index_by_table_id, table_id, fib_table->ft_index);
@@ -109,8 +113,6 @@ mpls_fib_create_with_table_id (u32 table_id)
table_id;
fib_table->ft_flow_hash_config =
MPLS_FLOW_HASH_DEFAULT;
- fib_table->v4.fwd_classify_table_index = ~0;
- fib_table->v4.rev_classify_table_index = ~0;
fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_MPLS);
@@ -122,7 +124,6 @@ mpls_fib_create_with_table_id (u32 table_id)
drop_dpo_get(DPO_PROTO_MPLS));
}
- mf = &fib_table->mpls;
mf->mf_entries = hash_create(0, sizeof(fib_node_index_t));
for (i = 0; i < MPLS_FIB_DB_SIZE; i++)
{
@@ -241,9 +242,10 @@ mpls_fib_table_create_and_lock (void)
}
void
-mpls_fib_table_destroy (mpls_fib_t *mf)
+mpls_fib_table_destroy (u32 fib_index)
{
- fib_table_t *fib_table = (fib_table_t*)mf;
+ fib_table_t *fib_table = pool_elt_at_index(mpls_main.fibs, fib_index);
+ mpls_fib_t *mf = pool_elt_at_index(mpls_main.mpls_fibs, fib_index);
fib_prefix_t prefix = {
.fp_proto = FIB_PROTOCOL_MPLS,
};
@@ -274,6 +276,7 @@ mpls_fib_table_destroy (mpls_fib_t *mf)
}
hash_free(mf->mf_entries);
+ pool_put(mpls_main.mpls_fibs, mf);
pool_put(mpls_main.fibs, fib_table);
}
@@ -436,11 +439,11 @@ mpls_fib_show (vlib_main_t * vm,
if (MPLS_LABEL_INVALID == label)
{
- mpls_fib_table_show_all(&(fib_table->mpls), vm);
+ mpls_fib_table_show_all(mpls_fib_get(fib_table->ft_index), vm);
}
else
{
- mpls_fib_table_show_one(&(fib_table->mpls), label, vm);
+ mpls_fib_table_show_one(mpls_fib_get(fib_table->ft_index), label, vm);
}
}));
diff --git a/src/vnet/fib/mpls_fib.h b/src/vnet/fib/mpls_fib.h
index 779decaa..78a61a14 100644
--- a/src/vnet/fib/mpls_fib.h
+++ b/src/vnet/fib/mpls_fib.h
@@ -25,10 +25,33 @@
#include <vnet/mpls/mpls.h>
#include <vnet/fib/fib_table.h>
+#define MPLS_FIB_DEFAULT_TABLE_ID 0
+
+/**
+ * Type exposure is to allow the DP fast/inlined access
+ */
+#define MPLS_FIB_KEY_SIZE 21
+#define MPLS_FIB_DB_SIZE (1 << (MPLS_FIB_KEY_SIZE-1))
+
+typedef struct mpls_fib_t_
+{
+ /**
+ * A hash table of entries. 21 bit key
+ * Hash table for reduced memory footprint
+ */
+ uword * mf_entries;
+
+ /**
+ * The load-balance indices keyed by 21 bit label+eos bit.
+ * A flat array for maximum lookup performace.
+ */
+ index_t mf_lbs[MPLS_FIB_DB_SIZE];
+} mpls_fib_t;
+
static inline mpls_fib_t*
mpls_fib_get (fib_node_index_t index)
{
- return (&(pool_elt_at_index(mpls_main.fibs, index)->mpls));
+ return (pool_elt_at_index(mpls_main.mpls_fibs, index));
}
extern u32 mpls_fib_table_find_or_create_and_lock(u32 table_id);
@@ -56,8 +79,7 @@ extern void mpls_fib_table_entry_insert(mpls_fib_t *mf,
mpls_label_t label,
mpls_eos_bit_t eos,
fib_node_index_t fei);
-extern void mpls_fib_table_destroy(mpls_fib_t *mf);
-
+extern void mpls_fib_table_destroy(u32 fib_index);
extern void mpls_fib_forwarding_table_update(mpls_fib_t *mf,
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index 4e075d0f..71640def 100644
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -40,34 +40,10 @@
#ifndef included_ip_ip4_h
#define included_ip_ip4_h
-#include <vnet/ip/ip4_mtrie.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/lookup.h>
#include <vnet/feature/feature.h>
-typedef struct ip4_fib_t
-{
- /* Hash table for each prefix length mapping. */
- uword *fib_entry_by_dst_address[33];
-
- /* Mtrie for fast lookups. Hash is used to maintain overlapping prefixes. */
- ip4_fib_mtrie_t mtrie;
-
- /* Table ID (hash key) for this FIB. */
- u32 table_id;
-
- /* Index into FIB vector. */
- u32 index;
-
- /* flow hash configuration */
- flow_hash_config_t flow_hash_config;
-
- /* N-tuple classifier indices */
- u32 fwd_classify_table_index;
- u32 rev_classify_table_index;
-
-} ip4_fib_t;
-
typedef struct ip4_mfib_t
{
/* Hash table for each prefix length mapping. */
@@ -111,6 +87,9 @@ typedef struct ip4_main_t
/** Vector of FIBs. */
struct fib_table_t_ *fibs;
+ /** Vector of MTries. */
+ struct ip4_fib_t_ *v4_fibs;
+
/** Vector of MFIBs. */
struct mfib_table_t_ *mfibs;
@@ -284,8 +263,6 @@ serialize_function_t serialize_vnet_ip4_main, unserialize_vnet_ip4_main;
int vnet_set_ip4_flow_hash (u32 table_id,
flow_hash_config_t flow_hash_config);
-void ip4_mtrie_init (ip4_fib_mtrie_t * m);
-
int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
u32 table_index);
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index ef6dded5..ee1703e7 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -182,7 +182,6 @@ ip4_lookup_inline (vlib_main_t * vm,
mtrie2 = &ip4_fib_get (fib_index2)->mtrie;
mtrie3 = &ip4_fib_get (fib_index3)->mtrie;
-
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, dst_addr0);
leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, dst_addr1);
leaf2 = ip4_fib_mtrie_lookup_step_one (mtrie2, dst_addr2);
@@ -196,14 +195,6 @@ ip4_lookup_inline (vlib_main_t * vm,
if (!lookup_for_responses_to_locally_received_packets)
{
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 1);
- leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 1);
- leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 1);
- leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 1);
- }
-
- if (!lookup_for_responses_to_locally_received_packets)
- {
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2);
leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 2);
leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 2);
@@ -364,9 +355,6 @@ ip4_lookup_inline (vlib_main_t * vm,
tcp0 = (void *) (ip0 + 1);
if (!lookup_for_responses_to_locally_received_packets)
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 1);
-
- if (!lookup_for_responses_to_locally_received_packets)
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2);
if (!lookup_for_responses_to_locally_received_packets)
@@ -1622,11 +1610,6 @@ ip4_local_inline (vlib_main_t * vm,
good_tcp_udp0 |= is_udp0 && udp0->checksum == 0;
good_tcp_udp1 |= is_udp1 && udp1->checksum == 0;
- leaf0 =
- ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1);
- leaf1 =
- ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1);
-
/* Verify UDP length. */
ip_len0 = clib_net_to_host_u16 (ip0->length);
ip_len1 = clib_net_to_host_u16 (ip1->length);
@@ -1812,9 +1795,6 @@ ip4_local_inline (vlib_main_t * vm,
/* Don't verify UDP checksum for packets with explicit zero checksum. */
good_tcp_udp0 |= is_udp0 && udp0->checksum == 0;
- leaf0 =
- ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1);
-
/* Verify UDP length. */
ip_len0 = clib_net_to_host_u16 (ip0->length);
udp_len0 = clib_net_to_host_u16 (udp0->length);
@@ -2913,7 +2893,6 @@ ip4_lookup_validate (ip4_address_t * a, u32 fib_index0)
mtrie0 = &ip4_fib_get (fib_index0)->mtrie;
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, a);
- leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, a, 1);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, a, 2);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, a, 3);
diff --git a/src/vnet/ip/ip4_mtrie.c b/src/vnet/ip/ip4_mtrie.c
index 317d8f10..adc95125 100644
--- a/src/vnet/ip/ip4_mtrie.c
+++ b/src/vnet/ip/ip4_mtrie.c
@@ -38,10 +38,17 @@
*/
#include <vnet/ip/ip.h>
-#include <vnet/fib/fib_entry.h>
+#include <vnet/ip/ip4_mtrie.h>
+#include <vnet/fib/ip4_fib.h>
+
+
+/**
+ * Global pool of IPv4 8bit PLYs
+ */
+ip4_fib_mtrie_8_ply_t *ip4_ply_pool;
always_inline u32
-ip4_fib_mtrie_leaf_is_non_empty (ip4_fib_mtrie_ply_t * p, u8 dst_byte)
+ip4_fib_mtrie_leaf_is_non_empty (ip4_fib_mtrie_8_ply_t * p, u8 dst_byte)
{
/*
* It's 'non-empty' if the length of the leaf stored is greater than the
@@ -84,61 +91,83 @@ ip4_fib_mtrie_leaf_set_next_ply_index (u32 i)
return l;
}
-static void
-ply_init (ip4_fib_mtrie_ply_t * p,
- ip4_fib_mtrie_leaf_t init, u32 prefix_len, u32 ply_base_len)
-{
- /*
- * A leaf is 'empty' if it represents a leaf from the covering PLY
- * i.e. if the prefix length of the leaf is less than or equal to
- * the prefix length of the PLY
- */
- p->n_non_empty_leafs = (prefix_len > ply_base_len ?
- ARRAY_LEN (p->leaves) : 0);
- memset (p->dst_address_bits_of_leaves, prefix_len,
- sizeof (p->dst_address_bits_of_leaves));
- p->dst_address_bits_base = ply_base_len;
-
- /* Initialize leaves. */
-#ifdef CLIB_HAVE_VEC128
- {
- u32x4 *l, init_x4;
-
#ifndef __ALTIVEC__
- init_x4 = u32x4_splat (init);
+#define PLY_X4_SPLAT_INIT(init_x4, init) \
+ init_x4 = u32x4_splat (init);
#else
- {
- u32x4_union_t y;
- y.as_u32[0] = init;
- y.as_u32[1] = init;
- y.as_u32[2] = init;
- y.as_u32[3] = init;
- init_x4 = y.as_u32x4;
- }
+#define PLY_X4_SPLAT_INIT(init_x4, init) \
+{ \
+ u32x4_union_t y; \
+ y.as_u32[0] = init; \
+ y.as_u32[1] = init; \
+ y.as_u32[2] = init; \
+ y.as_u32[3] = init; \
+ init_x4 = y.as_u32x4; \
+}
#endif
- for (l = p->leaves_as_u32x4;
- l < p->leaves_as_u32x4 + ARRAY_LEN (p->leaves_as_u32x4); l += 4)
- {
- l[0] = init_x4;
- l[1] = init_x4;
- l[2] = init_x4;
- l[3] = init_x4;
- }
- }
+#ifdef CLIB_HAVE_VEC128
+#define PLY_INIT_LEAVES(p) \
+{ \
+ u32x4 *l, init_x4; \
+ \
+ PLY_X4_SPLAT_INIT(init_x4, init); \
+ for (l = p->leaves_as_u32x4; \
+ l < p->leaves_as_u32x4 + ARRAY_LEN (p->leaves_as_u32x4); \
+ l += 4) \
+ { \
+ l[0] = init_x4; \
+ l[1] = init_x4; \
+ l[2] = init_x4; \
+ l[3] = init_x4; \
+ } \
+}
#else
- {
- u32 *l;
-
- for (l = p->leaves; l < p->leaves + ARRAY_LEN (p->leaves); l += 4)
- {
- l[0] = init;
- l[1] = init;
- l[2] = init;
- l[3] = init;
- }
- }
+#define PLY_INIT_LEAVES(p) \
+{ \
+ u32 *l; \
+ \
+ for (l = p->leaves; l < p->leaves + ARRAY_LEN (p->leaves); l += 4) \
+ { \
+ l[0] = init; \
+ l[1] = init; \
+ l[2] = init; \
+ l[3] = init; \
+ } \
+}
#endif
+
+#define PLY_INIT(p, init, prefix_len, ply_base_len) \
+{ \
+ /* \
+ * A leaf is 'empty' if it represents a leaf from the covering PLY \
+ * i.e. if the prefix length of the leaf is less than or equal to \
+ * the prefix length of the PLY \
+ */ \
+ p->n_non_empty_leafs = (prefix_len > ply_base_len ? \
+ ARRAY_LEN (p->leaves) : 0); \
+ memset (p->dst_address_bits_of_leaves, prefix_len, \
+ sizeof (p->dst_address_bits_of_leaves)); \
+ p->dst_address_bits_base = ply_base_len; \
+ \
+ /* Initialize leaves. */ \
+ PLY_INIT_LEAVES(p); \
+}
+
+static void
+ply_8_init (ip4_fib_mtrie_8_ply_t * p,
+ ip4_fib_mtrie_leaf_t init, uword prefix_len, u32 ply_base_len)
+{
+ PLY_INIT (p, init, prefix_len, ply_base_len);
+}
+
+static void
+ply_16_init (ip4_fib_mtrie_16_ply_t * p,
+ ip4_fib_mtrie_leaf_t init, uword prefix_len)
+{
+ memset (p->dst_address_bits_of_leaves, prefix_len,
+ sizeof (p->dst_address_bits_of_leaves));
+ PLY_INIT_LEAVES (p);
}
static ip4_fib_mtrie_leaf_t
@@ -146,49 +175,43 @@ ply_create (ip4_fib_mtrie_t * m,
ip4_fib_mtrie_leaf_t init_leaf,
u32 leaf_prefix_len, u32 ply_base_len)
{
- ip4_fib_mtrie_ply_t *p;
+ ip4_fib_mtrie_8_ply_t *p;
/* Get cache aligned ply. */
- pool_get_aligned (m->ply_pool, p, sizeof (p[0]));
+ pool_get_aligned (ip4_ply_pool, p, CLIB_CACHE_LINE_BYTES);
- ply_init (p, init_leaf, leaf_prefix_len, ply_base_len);
- return ip4_fib_mtrie_leaf_set_next_ply_index (p - m->ply_pool);
+ ply_8_init (p, init_leaf, leaf_prefix_len, ply_base_len);
+ return ip4_fib_mtrie_leaf_set_next_ply_index (p - ip4_ply_pool);
}
-always_inline ip4_fib_mtrie_ply_t *
+always_inline ip4_fib_mtrie_8_ply_t *
get_next_ply_for_leaf (ip4_fib_mtrie_t * m, ip4_fib_mtrie_leaf_t l)
{
uword n = ip4_fib_mtrie_leaf_get_next_ply_index (l);
- /* It better not be the root ply. */
- ASSERT (n != 0);
- return pool_elt_at_index (m->ply_pool, n);
+
+ return pool_elt_at_index (ip4_ply_pool, n);
}
-static void
-ply_free (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p)
+void
+ip4_mtrie_free (ip4_fib_mtrie_t * m)
{
- uword i, is_root;
-
- is_root = p - m->ply_pool == 0;
-
- for (i = 0; i < ARRAY_LEN (p->leaves); i++)
+ /* the root ply is embedded so the is nothing to do,
+ * the assumption being that the IP4 FIB table has emptied the trie
+ * before deletion.
+ */
+#if CLIB_DEBUG > 0
+ int i;
+ for (i = 0; i < ARRAY_LEN (m->root_ply.leaves); i++)
{
- ip4_fib_mtrie_leaf_t l = p->leaves[i];
- if (ip4_fib_mtrie_leaf_is_next_ply (l))
- ply_free (m, get_next_ply_for_leaf (m, l));
+ ASSERT (!ip4_fib_mtrie_leaf_is_next_ply (m->root_ply.leaves[i]));
}
-
- if (is_root)
- ply_init (p, IP4_FIB_MTRIE_LEAF_EMPTY, /* prefix_len */ 0, 0);
- else
- pool_put (m->ply_pool, p);
+#endif
}
void
-ip4_fib_free (ip4_fib_mtrie_t * m)
+ip4_mtrie_init (ip4_fib_mtrie_t * m)
{
- ip4_fib_mtrie_ply_t *root_ply = pool_elt_at_index (m->ply_pool, 0);
- ply_free (m, root_ply);
+ ply_16_init (&m->root_ply, IP4_FIB_MTRIE_LEAF_EMPTY, 0);
}
typedef struct
@@ -202,7 +225,7 @@ typedef struct
static void
set_ply_with_more_specific_leaf (ip4_fib_mtrie_t * m,
- ip4_fib_mtrie_ply_t * ply,
+ ip4_fib_mtrie_8_ply_t * ply,
ip4_fib_mtrie_leaf_t new_leaf,
uword new_leaf_dst_address_bits)
{
@@ -218,7 +241,8 @@ set_ply_with_more_specific_leaf (ip4_fib_mtrie_t * m,
/* Recurse into sub plies. */
if (!ip4_fib_mtrie_leaf_is_terminal (old_leaf))
{
- ip4_fib_mtrie_ply_t *sub_ply = get_next_ply_for_leaf (m, old_leaf);
+ ip4_fib_mtrie_8_ply_t *sub_ply =
+ get_next_ply_for_leaf (m, old_leaf);
set_ply_with_more_specific_leaf (m, sub_ply, new_leaf,
new_leaf_dst_address_bits);
}
@@ -237,16 +261,20 @@ set_ply_with_more_specific_leaf (ip4_fib_mtrie_t * m,
static void
set_leaf (ip4_fib_mtrie_t * m,
- ip4_fib_mtrie_set_unset_leaf_args_t * a,
+ const ip4_fib_mtrie_set_unset_leaf_args_t * a,
u32 old_ply_index, u32 dst_address_byte_index)
{
ip4_fib_mtrie_leaf_t old_leaf, new_leaf;
i32 n_dst_bits_next_plies;
u8 dst_byte;
+ ip4_fib_mtrie_8_ply_t *old_ply;
+
+ old_ply = pool_elt_at_index (ip4_ply_pool, old_ply_index);
ASSERT (a->dst_address_length >= 0 && a->dst_address_length <= 32);
ASSERT (dst_address_byte_index < ARRAY_LEN (a->dst_address.as_u8));
+ /* how many bits of the destination address are in the next PLY */
n_dst_bits_next_plies =
a->dst_address_length - BITS (u8) * (dst_address_byte_index + 1);
@@ -255,30 +283,36 @@ set_leaf (ip4_fib_mtrie_t * m,
/* Number of bits next plies <= 0 => insert leaves this ply. */
if (n_dst_bits_next_plies <= 0)
{
+ /* The mask length of the address to insert maps to this ply */
uword i, n_dst_bits_this_ply, old_leaf_is_terminal;
+ /* The number of bits, and hence slots/buckets, we will fill */
n_dst_bits_this_ply = clib_min (8, -n_dst_bits_next_plies);
ASSERT ((a->dst_address.as_u8[dst_address_byte_index] &
pow2_mask (n_dst_bits_this_ply)) == 0);
+ /* Starting at the value of the byte at this section of the v4 address
+ * fill the buckets/slots of the ply */
for (i = dst_byte; i < dst_byte + (1 << n_dst_bits_this_ply); i++)
{
- ip4_fib_mtrie_ply_t *old_ply, *new_ply;
-
- old_ply = pool_elt_at_index (m->ply_pool, old_ply_index);
+ ip4_fib_mtrie_8_ply_t *new_ply;
old_leaf = old_ply->leaves[i];
old_leaf_is_terminal = ip4_fib_mtrie_leaf_is_terminal (old_leaf);
- /* Is leaf to be inserted more specific? */
if (a->dst_address_length >= old_ply->dst_address_bits_of_leaves[i])
{
+ /* The new leaf is more or equally specific than the one currently
+ * occupying the slot */
new_leaf = ip4_fib_mtrie_leaf_set_adj_index (a->adj_index);
if (old_leaf_is_terminal)
{
+ /* The current leaf is terminal, we can replace it with
+ * the new one */
old_ply->n_non_empty_leafs -=
ip4_fib_mtrie_leaf_is_non_empty (old_ply, i);
+
old_ply->dst_address_bits_of_leaves[i] =
a->dst_address_length;
__sync_val_compare_and_swap (&old_ply->leaves[i], old_leaf,
@@ -292,32 +326,42 @@ set_leaf (ip4_fib_mtrie_t * m,
}
else
{
- /* Existing leaf points to another ply. We need to place new_leaf into all
- more specific slots. */
+ /* Existing leaf points to another ply. We need to place
+ * new_leaf into all more specific slots. */
new_ply = get_next_ply_for_leaf (m, old_leaf);
set_ply_with_more_specific_leaf (m, new_ply, new_leaf,
a->dst_address_length);
}
}
-
else if (!old_leaf_is_terminal)
{
+ /* The current leaf is less specific and not termial (i.e. a ply),
+ * recurse on down the trie */
new_ply = get_next_ply_for_leaf (m, old_leaf);
- set_leaf (m, a, new_ply - m->ply_pool,
+ set_leaf (m, a, new_ply - ip4_ply_pool,
dst_address_byte_index + 1);
}
+ /*
+ * else
+ * the route we are adding is less specific than the leaf currently
+ * occupying this slot. leave it there
+ */
}
}
else
{
- ip4_fib_mtrie_ply_t *old_ply, *new_ply;
+ /* The address to insert requires us to move down at a lower level of
+ * the trie - recurse on down */
+ ip4_fib_mtrie_8_ply_t *new_ply;
u8 ply_base_len;
ply_base_len = 8 * (dst_address_byte_index + 1);
- old_ply = pool_elt_at_index (m->ply_pool, old_ply_index);
+
old_leaf = old_ply->leaves[dst_byte];
+
if (ip4_fib_mtrie_leaf_is_terminal (old_leaf))
{
+ /* There is a leaf occupying the slot. Replace it with a new ply */
old_ply->n_non_empty_leafs -=
ip4_fib_mtrie_leaf_is_non_empty (old_ply, dst_byte);
@@ -328,28 +372,143 @@ set_leaf (ip4_fib_mtrie_t * m,
new_ply = get_next_ply_for_leaf (m, new_leaf);
/* Refetch since ply_create may move pool. */
- old_ply = pool_elt_at_index (m->ply_pool, old_ply_index);
+ old_ply = pool_elt_at_index (ip4_ply_pool, old_ply_index);
__sync_val_compare_and_swap (&old_ply->leaves[dst_byte], old_leaf,
new_leaf);
ASSERT (old_ply->leaves[dst_byte] == new_leaf);
old_ply->dst_address_bits_of_leaves[dst_byte] = ply_base_len;
- /* Account for the ply we just created. */
- old_ply->n_non_empty_leafs += 1;
+ old_ply->n_non_empty_leafs +=
+ ip4_fib_mtrie_leaf_is_non_empty (old_ply, dst_byte);
ASSERT (old_ply->n_non_empty_leafs >= 0);
}
else
new_ply = get_next_ply_for_leaf (m, old_leaf);
- set_leaf (m, a, new_ply - m->ply_pool, dst_address_byte_index + 1);
+ set_leaf (m, a, new_ply - ip4_ply_pool, dst_address_byte_index + 1);
+ }
+}
+
+static void
+set_root_leaf (ip4_fib_mtrie_t * m,
+ const ip4_fib_mtrie_set_unset_leaf_args_t * a)
+{
+ ip4_fib_mtrie_leaf_t old_leaf, new_leaf;
+ ip4_fib_mtrie_16_ply_t *old_ply;
+ i32 n_dst_bits_next_plies;
+ u16 dst_byte;
+
+ old_ply = &m->root_ply;
+
+ ASSERT (a->dst_address_length >= 0 && a->dst_address_length <= 32);
+
+ /* how many bits of the destination address are in the next PLY */
+ n_dst_bits_next_plies = a->dst_address_length - BITS (u16);
+
+ dst_byte = a->dst_address.as_u16[0];
+
+ /* Number of bits next plies <= 0 => insert leaves this ply. */
+ if (n_dst_bits_next_plies <= 0)
+ {
+ /* The mask length of the address to insert maps to this ply */
+ uword i, n_dst_bits_this_ply, old_leaf_is_terminal;
+
+ /* The number of bits, and hence slots/buckets, we will fill */
+ n_dst_bits_this_ply = 16 - a->dst_address_length;
+ ASSERT ((clib_host_to_net_u16 (a->dst_address.as_u16[0]) &
+ pow2_mask (n_dst_bits_this_ply)) == 0);
+
+ /* Starting at the value of the byte at this section of the v4 address
+ * fill the buckets/slots of the ply */
+ for (i = 0; i < (1 << n_dst_bits_this_ply); i++)
+ {
+ ip4_fib_mtrie_8_ply_t *new_ply;
+ u16 slot;
+
+ slot = clib_net_to_host_u16 (dst_byte);
+ slot += i;
+ slot = clib_host_to_net_u16 (slot);
+
+ old_leaf = old_ply->leaves[slot];
+ old_leaf_is_terminal = ip4_fib_mtrie_leaf_is_terminal (old_leaf);
+
+ if (a->dst_address_length >=
+ old_ply->dst_address_bits_of_leaves[slot])
+ {
+ /* The new leaf is more or equally specific than the one currently
+ * occupying the slot */
+ new_leaf = ip4_fib_mtrie_leaf_set_adj_index (a->adj_index);
+
+ if (old_leaf_is_terminal)
+ {
+ /* The current leaf is terminal, we can replace it with
+ * the new one */
+ old_ply->dst_address_bits_of_leaves[slot] =
+ a->dst_address_length;
+ __sync_val_compare_and_swap (&old_ply->leaves[slot],
+ old_leaf, new_leaf);
+ ASSERT (old_ply->leaves[slot] == new_leaf);
+ }
+ else
+ {
+ /* Existing leaf points to another ply. We need to place
+ * new_leaf into all more specific slots. */
+ new_ply = get_next_ply_for_leaf (m, old_leaf);
+ set_ply_with_more_specific_leaf (m, new_ply, new_leaf,
+ a->dst_address_length);
+ }
+ }
+ else if (!old_leaf_is_terminal)
+ {
+ /* The current leaf is less specific and not termial (i.e. a ply),
+ * recurse on down the trie */
+ new_ply = get_next_ply_for_leaf (m, old_leaf);
+ set_leaf (m, a, new_ply - ip4_ply_pool, 2);
+ }
+ /*
+ * else
+ * the route we are adding is less specific than the leaf currently
+ * occupying this slot. leave it there
+ */
+ }
+ }
+ else
+ {
+ /* The address to insert requires us to move down at a lower level of
+ * the trie - recurse on down */
+ ip4_fib_mtrie_8_ply_t *new_ply;
+ u8 ply_base_len;
+
+ ply_base_len = 16;
+
+ old_leaf = old_ply->leaves[dst_byte];
+
+ if (ip4_fib_mtrie_leaf_is_terminal (old_leaf))
+ {
+ /* There is a leaf occupying the slot. Replace it with a new ply */
+ new_leaf = ply_create (m, old_leaf,
+ clib_max (old_ply->dst_address_bits_of_leaves
+ [dst_byte], ply_base_len),
+ ply_base_len);
+ new_ply = get_next_ply_for_leaf (m, new_leaf);
+
+ __sync_val_compare_and_swap (&old_ply->leaves[dst_byte], old_leaf,
+ new_leaf);
+ ASSERT (old_ply->leaves[dst_byte] == new_leaf);
+ old_ply->dst_address_bits_of_leaves[dst_byte] = ply_base_len;
+ }
+ else
+ new_ply = get_next_ply_for_leaf (m, old_leaf);
+
+ set_leaf (m, a, new_ply - ip4_ply_pool, 2);
}
}
static uword
unset_leaf (ip4_fib_mtrie_t * m,
- ip4_fib_mtrie_set_unset_leaf_args_t * a,
- ip4_fib_mtrie_ply_t * old_ply, u32 dst_address_byte_index)
+ const ip4_fib_mtrie_set_unset_leaf_args_t * a,
+ ip4_fib_mtrie_8_ply_t * old_ply, u32 dst_address_byte_index)
{
ip4_fib_mtrie_leaf_t old_leaf, del_leaf;
i32 n_dst_bits_next_plies;
@@ -397,7 +556,7 @@ unset_leaf (ip4_fib_mtrie_t * m,
ASSERT (old_ply->n_non_empty_leafs >= 0);
if (old_ply->n_non_empty_leafs == 0 && dst_address_byte_index > 0)
{
- pool_put (m->ply_pool, old_ply);
+ pool_put (ip4_ply_pool, old_ply);
/* Old ply was deleted. */
return 1;
}
@@ -419,106 +578,120 @@ unset_leaf (ip4_fib_mtrie_t * m,
return 0;
}
-void
-ip4_mtrie_init (ip4_fib_mtrie_t * m)
+static void
+unset_root_leaf (ip4_fib_mtrie_t * m,
+ const ip4_fib_mtrie_set_unset_leaf_args_t * a)
{
- ip4_fib_mtrie_leaf_t root;
- memset (m, 0, sizeof (m[0]));
- root = ply_create (m, IP4_FIB_MTRIE_LEAF_EMPTY, 0, 0);
- ASSERT (ip4_fib_mtrie_leaf_get_next_ply_index (root) == 0);
-}
+ ip4_fib_mtrie_leaf_t old_leaf, del_leaf;
+ i32 n_dst_bits_next_plies;
+ i32 i, n_dst_bits_this_ply, old_leaf_is_terminal;
+ u16 dst_byte;
+ ip4_fib_mtrie_16_ply_t *old_ply;
-void
-ip4_fib_mtrie_add_del_route (ip4_fib_t * fib,
- ip4_address_t dst_address,
- u32 dst_address_length,
- u32 adj_index, u32 is_del)
-{
- ip4_fib_mtrie_t *m = &fib->mtrie;
- ip4_fib_mtrie_ply_t *root_ply;
- ip4_fib_mtrie_set_unset_leaf_args_t a;
- ip4_main_t *im = &ip4_main;
+ ASSERT (a->dst_address_length >= 0 && a->dst_address_length <= 32);
- ASSERT (m->ply_pool != 0);
+ old_ply = &m->root_ply;
+ n_dst_bits_next_plies = a->dst_address_length - BITS (u16);
- root_ply = pool_elt_at_index (m->ply_pool, 0);
+ dst_byte = a->dst_address.as_u16[0];
- /* Honor dst_address_length. Fib masks are in network byte order */
- dst_address.as_u32 &= im->fib_masks[dst_address_length];
- a.dst_address = dst_address;
- a.dst_address_length = dst_address_length;
- a.adj_index = adj_index;
+ n_dst_bits_this_ply = (n_dst_bits_next_plies <= 0 ?
+ (16 - a->dst_address_length) : 0);
- if (!is_del)
- {
- set_leaf (m, &a, /* ply_index */ 0, /* dst_address_byte_index */ 0);
- }
- else
+ del_leaf = ip4_fib_mtrie_leaf_set_adj_index (a->adj_index);
+
+ /* Starting at the value of the byte at this section of the v4 address
+ * fill the buckets/slots of the ply */
+ for (i = 0; i < (1 << n_dst_bits_this_ply); i++)
{
- ip4_main_t *im = &ip4_main;
+ u16 slot;
+
+ slot = clib_net_to_host_u16 (dst_byte);
+ slot += i;
+ slot = clib_host_to_net_u16 (slot);
- if (dst_address_length)
+ old_leaf = old_ply->leaves[slot];
+ old_leaf_is_terminal = ip4_fib_mtrie_leaf_is_terminal (old_leaf);
+
+ if (old_leaf == del_leaf
+ || (!old_leaf_is_terminal
+ && unset_leaf (m, a, get_next_ply_for_leaf (m, old_leaf), 2)))
{
- word i;
+ old_ply->leaves[slot] =
+ ip4_fib_mtrie_leaf_set_adj_index (a->cover_adj_index);
+ old_ply->dst_address_bits_of_leaves[slot] = a->cover_address_length;
+ }
+ }
+}
- /* If the ply was not deleted, then we need to fill the
- * bucket just reset will the leaf from the less specfic
- * cover.
- * Find next less specific route and insert into mtrie. */
- for (i = dst_address_length - 1; i >= 0; i--)
- {
- uword *p;
- index_t lbi;
- ip4_address_t key;
+void
+ip4_fib_mtrie_route_add (ip4_fib_mtrie_t * m,
+ const ip4_address_t * dst_address,
+ u32 dst_address_length, u32 adj_index)
+{
+ ip4_fib_mtrie_set_unset_leaf_args_t a;
+ ip4_main_t *im = &ip4_main;
- if (!fib->fib_entry_by_dst_address[i])
- continue;
+ /* Honor dst_address_length. Fib masks are in network byte order */
+ a.dst_address.as_u32 = (dst_address->as_u32 &
+ im->fib_masks[dst_address_length]);
+ a.dst_address_length = dst_address_length;
+ a.adj_index = adj_index;
- key.as_u32 = dst_address.as_u32 & im->fib_masks[i];
- p = hash_get (fib->fib_entry_by_dst_address[i], key.as_u32);
- if (p)
- {
- lbi = fib_entry_contribute_ip_forwarding (p[0])->dpoi_index;
- if (INDEX_INVALID == lbi)
- continue;
+ set_root_leaf (m, &a);
+}
- a.cover_adj_index = lbi;
- a.cover_address_length = i;
+void
+ip4_fib_mtrie_route_del (ip4_fib_mtrie_t * m,
+ const ip4_address_t * dst_address,
+ u32 dst_address_length,
+ u32 adj_index,
+ u32 cover_address_length, u32 cover_adj_index)
+{
+ ip4_fib_mtrie_set_unset_leaf_args_t a;
+ ip4_main_t *im = &ip4_main;
- break;
- }
- }
- }
- else
- {
- a.cover_adj_index = 0;
- a.cover_address_length = 0;
- }
+ /* Honor dst_address_length. Fib masks are in network byte order */
+ a.dst_address.as_u32 = (dst_address->as_u32 &
+ im->fib_masks[dst_address_length]);
+ a.dst_address_length = dst_address_length;
+ a.adj_index = adj_index;
+ a.cover_adj_index = cover_adj_index;
+ a.cover_address_length = cover_address_length;
- /* the top level ply is never removed, so we can ignore the return code */
- unset_leaf (m, &a, root_ply, 0);
- }
+ /* the top level ply is never removed */
+ unset_root_leaf (m, &a);
}
/* Returns number of bytes of memory used by mtrie. */
static uword
-mtrie_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p)
+mtrie_ply_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_8_ply_t * p)
{
uword bytes, i;
- if (!p)
- {
- if (pool_is_free_index (m->ply_pool, 0))
- return 0;
- p = pool_elt_at_index (m->ply_pool, 0);
- }
-
bytes = sizeof (p[0]);
for (i = 0; i < ARRAY_LEN (p->leaves); i++)
{
ip4_fib_mtrie_leaf_t l = p->leaves[i];
if (ip4_fib_mtrie_leaf_is_next_ply (l))
- bytes += mtrie_memory_usage (m, get_next_ply_for_leaf (m, l));
+ bytes += mtrie_ply_memory_usage (m, get_next_ply_for_leaf (m, l));
+ }
+
+ return bytes;
+}
+
+/* Returns number of bytes of memory used by mtrie. */
+static uword
+mtrie_memory_usage (ip4_fib_mtrie_t * m)
+{
+ uword bytes, i;
+
+ bytes = sizeof (*m);
+ for (i = 0; i < ARRAY_LEN (m->root_ply.leaves); i++)
+ {
+ ip4_fib_mtrie_leaf_t l = m->root_ply.leaves[i];
+ if (ip4_fib_mtrie_leaf_is_next_ply (l))
+ bytes += mtrie_ply_memory_usage (m, get_next_ply_for_leaf (m, l));
}
return bytes;
@@ -536,47 +709,49 @@ format_ip4_fib_mtrie_leaf (u8 * s, va_list * va)
return s;
}
+#define FORMAT_PLY(s, _p, _i, _base_address, _ply_max_len, _indent) \
+({ \
+ u32 a, ia_length; \
+ ip4_address_t ia; \
+ ip4_fib_mtrie_leaf_t _l = p->leaves[(_i)]; \
+ \
+ a = (_base_address) + ((_i) << (32 - (_ply_max_len))); \
+ ia.as_u32 = clib_host_to_net_u32 (a); \
+ ia_length = (_p)->dst_address_bits_of_leaves[(_i)]; \
+ s = format (s, "\n%U%20U %U", \
+ format_white_space, (_indent) + 2, \
+ format_ip4_address_and_length, &ia, ia_length, \
+ format_ip4_fib_mtrie_leaf, _l); \
+ \
+ if (ip4_fib_mtrie_leaf_is_next_ply (_l)) \
+ s = format (s, "\n%U%U", \
+ format_white_space, (_indent) + 2, \
+ format_ip4_fib_mtrie_ply, m, a, \
+ ip4_fib_mtrie_leaf_get_next_ply_index (_l)); \
+ s; \
+})
+
static u8 *
format_ip4_fib_mtrie_ply (u8 * s, va_list * va)
{
ip4_fib_mtrie_t *m = va_arg (*va, ip4_fib_mtrie_t *);
u32 base_address = va_arg (*va, u32);
u32 ply_index = va_arg (*va, u32);
- u32 dst_address_byte_index = va_arg (*va, u32);
- ip4_fib_mtrie_ply_t *p;
- uword i, indent;
+ ip4_fib_mtrie_8_ply_t *p;
+ uword indent;
+ int i;
- p = pool_elt_at_index (m->ply_pool, ply_index);
+ p = pool_elt_at_index (ip4_ply_pool, ply_index);
indent = format_get_indent (s);
- s =
- format (s, "ply index %d, %d non-empty leaves", ply_index,
- p->n_non_empty_leafs);
+ s = format (s, "ply index %d, %d non-empty leaves", ply_index,
+ p->n_non_empty_leafs);
+
for (i = 0; i < ARRAY_LEN (p->leaves); i++)
{
- ip4_fib_mtrie_leaf_t l = p->leaves[i];
-
if (ip4_fib_mtrie_leaf_is_non_empty (p, i))
{
- u32 a, ia_length;
- ip4_address_t ia;
-
- a = base_address + (i << (24 - 8 * dst_address_byte_index));
- ia.as_u32 = clib_host_to_net_u32 (a);
- if (ip4_fib_mtrie_leaf_is_terminal (l))
- ia_length = p->dst_address_bits_of_leaves[i];
- else
- ia_length = 8 * (1 + dst_address_byte_index);
- s = format (s, "\n%U%20U %U",
- format_white_space, indent + 2,
- format_ip4_address_and_length, &ia, ia_length,
- format_ip4_fib_mtrie_leaf, l);
-
- if (ip4_fib_mtrie_leaf_is_next_ply (l))
- s = format (s, "\n%U%U",
- format_white_space, indent + 2,
- format_ip4_fib_mtrie_ply, m, a,
- ip4_fib_mtrie_leaf_get_next_ply_index (l),
- dst_address_byte_index + 1);
+ FORMAT_PLY (s, p, i, base_address,
+ p->dst_address_bits_base + 8, indent);
}
}
@@ -587,22 +762,44 @@ u8 *
format_ip4_fib_mtrie (u8 * s, va_list * va)
{
ip4_fib_mtrie_t *m = va_arg (*va, ip4_fib_mtrie_t *);
+ ip4_fib_mtrie_16_ply_t *p;
+ u32 base_address = 0;
+ int i;
- s = format (s, "%d plies, memory usage %U",
- pool_elts (m->ply_pool),
- format_memory_size, mtrie_memory_usage (m, 0));
+ s = format (s, "%d plies, memory usage %U\n",
+ pool_elts (ip4_ply_pool),
+ format_memory_size, mtrie_memory_usage (m));
+ s = format (s, "root-ply");
+ p = &m->root_ply;
- if (pool_elts (m->ply_pool) > 0)
+ for (i = 0; i < ARRAY_LEN (p->leaves); i++)
{
- ip4_address_t base_address;
- base_address.as_u32 = 0;
- s =
- format (s, "\n %U", format_ip4_fib_mtrie_ply, m, base_address, 0, 0);
+ u16 slot;
+
+ slot = clib_host_to_net_u16 (i);
+
+ if (p->dst_address_bits_of_leaves[slot] > 0)
+ {
+ FORMAT_PLY (s, p, slot, base_address, 16, 2);
+ }
}
return s;
}
+static clib_error_t *
+ip4_mtrie_module_init (vlib_main_t * vm)
+{
+ /* Burn one ply so index 0 is taken */
+ CLIB_UNUSED (ip4_fib_mtrie_8_ply_t * p);
+
+ pool_get (ip4_ply_pool, p);
+
+ return (NULL);
+}
+
+VLIB_INIT_FUNCTION (ip4_mtrie_module_init);
+
/*
* fd.io coding-style-patch-verification: ON
*
diff --git a/src/vnet/ip/ip4_mtrie.h b/src/vnet/ip/ip4_mtrie.h
index 128195d3..be262c2c 100644
--- a/src/vnet/ip/ip4_mtrie.h
+++ b/src/vnet/ip/ip4_mtrie.h
@@ -47,16 +47,43 @@
/* ip4 fib leafs: 4 ply 8-8-8-8 mtrie.
1 + 2*adj_index for terminal leaves.
- 0 + 2*next_ply_index for non-terminals.
+ 0 + 2*next_ply_index for non-terminals, i.e. PLYs
1 => empty (adjacency index of zero is special miss adjacency). */
typedef u32 ip4_fib_mtrie_leaf_t;
#define IP4_FIB_MTRIE_LEAF_EMPTY (1 + 2*0)
/**
+ * @brief the 16 way stride that is the top PLY of the mtrie
+ * We do not maintain the count of 'real' leaves in this PLY, since
+ * it is never removed. The FIB will destroy the mtrie and the ply once
+ * the FIB is destroyed.
+ */
+#define PLY_16_SIZE (1<<16)
+typedef struct ip4_fib_mtrie_16_ply_t_
+{
+ /**
+ * The leaves/slots/buckets to be filed with leafs
+ */
+ union
+ {
+ ip4_fib_mtrie_leaf_t leaves[PLY_16_SIZE];
+
+#ifdef CLIB_HAVE_VEC128
+ u32x4 leaves_as_u32x4[PLY_16_SIZE / 4];
+#endif
+ };
+
+ /**
+ * Prefix length for terminal leaves.
+ */
+ u8 dst_address_bits_of_leaves[PLY_16_SIZE];
+} ip4_fib_mtrie_16_ply_t;
+
+/**
* @brief One ply of the 4 ply mtrie fib.
*/
-typedef struct
+typedef struct ip4_fib_mtrie_8_ply_t_
{
/**
* The leaves/slots/buckets to be filed with leafs
@@ -90,34 +117,72 @@ typedef struct
/* Pad to cache line boundary. */
u8 pad[CLIB_CACHE_LINE_BYTES - 2 * sizeof (i32)];
}
-ip4_fib_mtrie_ply_t;
+ip4_fib_mtrie_8_ply_t;
-STATIC_ASSERT (0 == sizeof (ip4_fib_mtrie_ply_t) % CLIB_CACHE_LINE_BYTES,
+STATIC_ASSERT (0 == sizeof (ip4_fib_mtrie_8_ply_t) % CLIB_CACHE_LINE_BYTES,
"IP4 Mtrie ply cache line");
+/**
+ * @brief The mutiway-TRIE.
+ * There is no data associated with the mtrie apart from the top PLY
+ */
typedef struct
{
- /* Pool of plies. Index zero is root ply. */
- ip4_fib_mtrie_ply_t *ply_pool;
+ /**
+ * Embed the PLY with the mtrie struct. This means that the Data-plane
+ * 'get me the mtrie' returns the first ply, and not an indirect 'pointer'
+ * to it. therefore no cachline misses in the data-path.
+ */
+ ip4_fib_mtrie_16_ply_t root_ply;
} ip4_fib_mtrie_t;
-void ip4_fib_mtrie_init (ip4_fib_mtrie_t * m);
+/**
+ * @brief Initialise an mtrie
+ */
+void ip4_mtrie_init (ip4_fib_mtrie_t * m);
-struct ip4_fib_t;
+/**
+ * @brief Free an mtrie, It must be emty when free'd
+ */
+void ip4_mtrie_free (ip4_fib_mtrie_t * m);
-void ip4_fib_mtrie_add_del_route (struct ip4_fib_t *f,
- ip4_address_t dst_address,
- u32 dst_address_length,
- u32 adj_index, u32 is_del);
+/**
+ * @brief Add a route/rntry to the mtrie
+ */
+void ip4_fib_mtrie_route_add (ip4_fib_mtrie_t * m,
+ const ip4_address_t * dst_address,
+ u32 dst_address_length, u32 adj_index);
+/**
+ * @brief remove a route/rntry to the mtrie
+ */
+void ip4_fib_mtrie_route_del (ip4_fib_mtrie_t * m,
+ const ip4_address_t * dst_address,
+ u32 dst_address_length,
+ u32 adj_index,
+ u32 cover_address_length, u32 cover_adj_index);
+/**
+ * @brief Format/display the contents of the mtrie
+ */
format_function_t format_ip4_fib_mtrie;
+/**
+ * @brief A global pool of 8bit stride plys
+ */
+extern ip4_fib_mtrie_8_ply_t *ip4_ply_pool;
+
+/**
+ * Is the leaf terminal (i.e. an LB index) or non-terminak (i.e. a PLY index)
+ */
always_inline u32
ip4_fib_mtrie_leaf_is_terminal (ip4_fib_mtrie_leaf_t n)
{
return n & 1;
}
+/**
+ * From the stored slot value extract the LB index value
+ */
always_inline u32
ip4_fib_mtrie_leaf_get_adj_index (ip4_fib_mtrie_leaf_t n)
{
@@ -125,35 +190,38 @@ ip4_fib_mtrie_leaf_get_adj_index (ip4_fib_mtrie_leaf_t n)
return n >> 1;
}
-/* Lookup step. Processes 1 byte of 4 byte ip4 address. */
+/**
+ * @brief Lookup step. Processes 1 byte of 4 byte ip4 address.
+ */
always_inline ip4_fib_mtrie_leaf_t
ip4_fib_mtrie_lookup_step (const ip4_fib_mtrie_t * m,
ip4_fib_mtrie_leaf_t current_leaf,
const ip4_address_t * dst_address,
u32 dst_address_byte_index)
{
- ip4_fib_mtrie_ply_t *ply;
+ ip4_fib_mtrie_8_ply_t *ply;
+
uword current_is_terminal = ip4_fib_mtrie_leaf_is_terminal (current_leaf);
if (!current_is_terminal)
{
- ply = m->ply_pool + (current_leaf >> 1);
+ ply = ip4_ply_pool + (current_leaf >> 1);
return (ply->leaves[dst_address->as_u8[dst_address_byte_index]]);
}
return current_leaf;
}
-/* Lookup step. Processes 1 byte of 4 byte ip4 address. */
+/**
+ * @brief Lookup step number 1. Processes 2 bytes of 4 byte ip4 address.
+ */
always_inline ip4_fib_mtrie_leaf_t
ip4_fib_mtrie_lookup_step_one (const ip4_fib_mtrie_t * m,
const ip4_address_t * dst_address)
{
ip4_fib_mtrie_leaf_t next_leaf;
- ip4_fib_mtrie_ply_t *ply;
- ply = m->ply_pool;
- next_leaf = ply->leaves[dst_address->as_u8[0]];
+ next_leaf = m->root_ply.leaves[dst_address->as_u16[0]];
return next_leaf;
}
diff --git a/src/vnet/ip/ip4_packet.h b/src/vnet/ip/ip4_packet.h
index b2c1fcd4..1ff9fbdb 100644
--- a/src/vnet/ip/ip4_packet.h
+++ b/src/vnet/ip/ip4_packet.h
@@ -52,6 +52,7 @@ typedef union
u32 data_u32;
/* Aliases. */
u8 as_u8[4];
+ u16 as_u16[2];
u32 as_u32;
} ip4_address_t;
diff --git a/src/vnet/ip/ip4_source_check.c b/src/vnet/ip/ip4_source_check.c
index 7c2b7be8..6831066e 100644
--- a/src/vnet/ip/ip4_source_check.c
+++ b/src/vnet/ip/ip4_source_check.c
@@ -166,11 +166,6 @@ ip4_source_check_inline (vlib_main_t * vm,
leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, &ip1->src_address);
leaf0 =
- ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1);
- leaf1 =
- ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1);
-
- leaf0 =
ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2);
leaf1 =
ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2);
@@ -249,9 +244,6 @@ ip4_source_check_inline (vlib_main_t * vm,
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address);
leaf0 =
- ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1);
-
- leaf0 =
ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2);
leaf0 =
diff --git a/src/vnet/ip/ip6.h b/src/vnet/ip/ip6.h
index 8fa9a479..bf7ec7d5 100644
--- a/src/vnet/ip/ip6.h
+++ b/src/vnet/ip/ip6.h
@@ -153,6 +153,9 @@ typedef struct ip6_main_t
/* Pool of FIBs. */
struct fib_table_t_ *fibs;
+ /* Pool of V6 FIBs. */
+ ip6_fib_t *v6_fibs;
+
/** Vector of MFIBs. */
struct mfib_table_t_ *mfibs;
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index e3a1fee8..b9f1782b 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -240,6 +240,21 @@ send_ip_fib_details (vpe_api_main_t * am,
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
+typedef struct vl_api_ip_fib_dump_walk_ctx_t_
+{
+ fib_node_index_t *feis;
+} vl_api_ip_fib_dump_walk_ctx_t;
+
+static int
+vl_api_ip_fib_dump_walk (fib_node_index_t fei, void *arg)
+{
+ vl_api_ip_fib_dump_walk_ctx_t *ctx = arg;
+
+ vec_add1 (ctx->feis, fei);
+
+ return (1);
+}
+
static void
vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
{
@@ -247,12 +262,13 @@ vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
unix_shared_memory_queue_t *q;
ip4_main_t *im = &ip4_main;
fib_table_t *fib_table;
- fib_node_index_t lfei, *lfeip, *lfeis = NULL;
- mpls_label_t key;
+ fib_node_index_t *lfeip;
fib_prefix_t pfx;
u32 fib_index;
fib_route_path_encode_t *api_rpaths;
- int i;
+ vl_api_ip_fib_dump_walk_ctx_t ctx = {
+ .feis = NULL,
+ };
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
@@ -261,19 +277,16 @@ vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
/* *INDENT-OFF* */
pool_foreach (fib_table, im->fibs,
({
- for (i = 0; i < ARRAY_LEN (fib_table->v4.fib_entry_by_dst_address); i++)
- {
- hash_foreach(key, lfei, fib_table->v4.fib_entry_by_dst_address[i],
- ({
- vec_add1(lfeis, lfei);
- }));
- }
+ fib_table_walk(fib_table->ft_index,
+ FIB_PROTOCOL_IP4,
+ vl_api_ip_fib_dump_walk,
+ &ctx);
}));
/* *INDENT-ON* */
- vec_sort_with_function (lfeis, fib_entry_cmp_for_sort);
+ vec_sort_with_function (ctx.feis, fib_entry_cmp_for_sort);
- vec_foreach (lfeip, lfeis)
+ vec_foreach (lfeip, ctx.feis)
{
fib_entry_get_prefix (*lfeip, &pfx);
fib_index = fib_entry_get_fib_index (*lfeip);
@@ -286,7 +299,7 @@ vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
vec_free (api_rpaths);
}
- vec_free (lfeis);
+ vec_free (ctx.feis);
}
static void
@@ -377,10 +390,10 @@ api_ip6_fib_table_get_all (unix_shared_memory_queue_t * q,
{
vpe_api_main_t *am = &vpe_api_main;
ip6_main_t *im6 = &ip6_main;
- ip6_fib_t *fib = &fib_table->v6;
fib_node_index_t *fib_entry_index;
api_ip6_fib_show_ctx_t ctx = {
- .fib_index = fib->index,.entries = NULL,
+ .fib_index = fib_table->ft_index,
+ .entries = NULL,
};
fib_route_path_encode_t *api_rpaths;
fib_prefix_t pfx;
diff --git a/src/vnet/mpls/interface.c b/src/vnet/mpls/interface.c
index f631dc76..a085aaa2 100644
--- a/src/vnet/mpls/interface.c
+++ b/src/vnet/mpls/interface.c
@@ -18,6 +18,7 @@
#include <vnet/vnet.h>
#include <vnet/pg/pg.h>
#include <vnet/mpls/mpls.h>
+#include <vnet/fib/mpls_fib.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/adj/adj_midchain.h>
#include <vnet/dpo/classify_dpo.h>
diff --git a/src/vnet/mpls/mpls.h b/src/vnet/mpls/mpls.h
index 300f2cfd..b0125e60 100644
--- a/src/vnet/mpls/mpls.h
+++ b/src/vnet/mpls/mpls.h
@@ -30,29 +30,6 @@ typedef enum {
MPLS_N_ERROR,
} mpls_error_t;
-#define MPLS_FIB_DEFAULT_TABLE_ID 0
-
-/**
- * Type exposure is to allow the DP fast/inlined access
- */
-#define MPLS_FIB_KEY_SIZE 21
-#define MPLS_FIB_DB_SIZE (1 << (MPLS_FIB_KEY_SIZE-1))
-
-typedef struct mpls_fib_t_
-{
- /**
- * A hash table of entries. 21 bit key
- * Hash table for reduced memory footprint
- */
- uword * mf_entries;
-
- /**
- * The load-balance indeices keyed by 21 bit label+eos bit.
- * A flat array for maximum lookup performace.
- */
- index_t mf_lbs[MPLS_FIB_DB_SIZE];
-} mpls_fib_t;
-
/**
* @brief Definition of a callback for receiving MPLS interface state change
* notifications
@@ -67,6 +44,9 @@ typedef struct {
/** A pool of all the MPLS FIBs */
struct fib_table_t_ *fibs;
+ /** A pool of all the MPLS FIBs */
+ struct mpls_fib_t_ *mpls_fibs;
+
/** A hash table to lookup the mpls_fib by table ID */
uword *fib_index_by_table_id;
diff --git a/src/vnet/mpls/mpls_api.c b/src/vnet/mpls/mpls_api.c
index a36a5046..f1aef6c9 100644
--- a/src/vnet/mpls/mpls_api.c
+++ b/src/vnet/mpls/mpls_api.c
@@ -26,6 +26,7 @@
#include <vnet/mpls/mpls_tunnel.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/fib_api.h>
+#include <vnet/fib/mpls_fib.h>
#include <vnet/vnet_msg_enum.h>
@@ -369,6 +370,21 @@ send_mpls_fib_details (vpe_api_main_t * am,
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
+typedef struct vl_api_mpls_fib_dump_table_walk_ctx_t_
+{
+ fib_node_index_t *lfeis;
+} vl_api_mpls_fib_dump_table_walk_ctx_t;
+
+static int
+vl_api_mpls_fib_dump_table_walk (fib_node_index_t fei, void *arg)
+{
+ vl_api_mpls_fib_dump_table_walk_ctx_t *ctx = arg;
+
+ vec_add1 (ctx->lfeis, fei);
+
+ return (1);
+}
+
static void
vl_api_mpls_fib_dump_t_handler (vl_api_mpls_fib_dump_t * mp)
{
@@ -376,28 +392,30 @@ vl_api_mpls_fib_dump_t_handler (vl_api_mpls_fib_dump_t * mp)
unix_shared_memory_queue_t *q;
mpls_main_t *mm = &mpls_main;
fib_table_t *fib_table;
- fib_node_index_t lfei, *lfeip, *lfeis = NULL;
- mpls_label_t key;
+ mpls_fib_t *mpls_fib;
+ fib_node_index_t *lfeip = NULL;
fib_prefix_t pfx;
u32 fib_index;
fib_route_path_encode_t *api_rpaths;
+ vl_api_mpls_fib_dump_table_walk_ctx_t ctx = {
+ .lfeis = NULL,
+ };
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
- pool_foreach (fib_table, mm->fibs,
+ pool_foreach (mpls_fib, mm->mpls_fibs,
({
- hash_foreach(key, lfei, fib_table->mpls.mf_entries,
- ({
- vec_add1(lfeis, lfei);
- }));
+ mpls_fib_table_walk (mpls_fib,
+ vl_api_mpls_fib_dump_table_walk,
+ &ctx);
}));
/* *INDENT-ON* */
- vec_sort_with_function (lfeis, fib_entry_cmp_for_sort);
+ vec_sort_with_function (ctx.lfeis, fib_entry_cmp_for_sort);
- vec_foreach (lfeip, lfeis)
+ vec_foreach (lfeip, ctx.lfeis)
{
fib_entry_get_prefix (*lfeip, &pfx);
fib_index = fib_entry_get_fib_index (*lfeip);
@@ -410,7 +428,7 @@ vl_api_mpls_fib_dump_t_handler (vl_api_mpls_fib_dump_t * mp)
vec_free (api_rpaths);
}
- vec_free (lfeis);
+ vec_free (ctx.lfeis);
}
/*
diff --git a/src/vpp/api/api.c b/src/vpp/api/api.c
index 14ccd864..09ae8b8f 100644
--- a/src/vpp/api/api.c
+++ b/src/vpp/api/api.c
@@ -896,9 +896,10 @@ ip4_reset_fib_t_handler (vl_api_reset_fib_t * mp)
/* *INDENT-OFF* */
pool_foreach (fib_table, im4->fibs,
({
- fib = &fib_table->v4;
vnet_sw_interface_t * si;
+ fib = pool_elt_at_index (im4->v4_fibs, fib_table->ft_index);
+
if (fib->table_id != target_fib_id)
continue;
@@ -964,7 +965,8 @@ ip6_reset_fib_t_handler (vl_api_reset_fib_t * mp)
pool_foreach (fib_table, im6->fibs,
({
vnet_sw_interface_t * si;
- fib = &(fib_table->v6);
+
+ fib = pool_elt_at_index (im6->v6_fibs, fib_table->ft_index);
if (fib->table_id != target_fib_id)
continue;
diff --git a/src/vpp/stats/stats.c b/src/vpp/stats/stats.c
index 1927da0b..042d02e2 100644
--- a/src/vpp/stats/stats.c
+++ b/src/vpp/stats/stats.c
@@ -17,6 +17,7 @@
#include <vlib/threads.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip4_fib.h>
#include <vnet/dpo/load_balance.h>
#define STATS_DEBUG 0
@@ -576,6 +577,7 @@ do_ip4_fibs (stats_main_t * sm)
static ip4_route_t *routes;
ip4_route_t *r;
fib_table_t *fib;
+ ip4_fib_t *v4_fib;
ip_lookup_main_t *lm = &im4->lookup_main;
static uword *results;
vl_api_vnet_ip4_fib_counters_t *mp = 0;
@@ -592,6 +594,8 @@ again:
while ((fib - im4->fibs) < start_at_fib_index)
continue;
+ v4_fib = pool_elt_at_index (im4->v4_fibs, fib->ft_index);
+
if (mp == 0)
{
items_this_message = IP4_FIB_COUNTER_BATCH_SIZE;
@@ -615,9 +619,9 @@ again:
vec_reset_length (routes);
vec_reset_length (results);
- for (i = 0; i < ARRAY_LEN (fib->v4.fib_entry_by_dst_address); i++)
+ for (i = 0; i < ARRAY_LEN (v4_fib->fib_entry_by_dst_address); i++)
{
- uword *hash = fib->v4.fib_entry_by_dst_address[i];
+ uword *hash = v4_fib->fib_entry_by_dst_address[i];
hash_pair_t *p;
ip4_route_t x;