#include <vnet/fib/ip4_fib.h>
/*
- * A table of pefixes to be added to tables and the sources for them
+ * A table of prefixes to be added to tables and the sources for them
*/
typedef struct ip4_fib_table_special_prefix_t_ {
fib_prefix_t ift_prefix;
}
};
-
-static u32
-ip4_create_fib_with_table_id (u32 table_id,
- fib_source_t src)
+void
+ip4_fib_hash_load_specials (u32 fib_index)
{
- 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 =
- 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 =
- v4_fib->table_id =
- table_id;
- fib_table->ft_flow_hash_config = IP_FLOW_HASH_DEFAULT;
- v4_fib->fwd_classify_table_index = ~0;
- v4_fib->rev_classify_table_index = ~0;
-
- fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_IP4, src);
-
- ip4_mtrie_init(&v4_fib->mtrie);
-
/*
* add the special entries into the new FIB
*/
prefix.fp_addr.ip4.data_u32 =
clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
- fib_table_entry_special_add(fib_table->ft_index,
+ fib_table_entry_special_add(fib_index,
&prefix,
ip4_specials[ii].ift_source,
ip4_specials[ii].ift_flag);
}
-
- return (fib_table->ft_index);
}
void
-ip4_fib_table_destroy (u32 fib_index)
+ip4_fib_hash_flush_specials (u32 fib_index)
{
- 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;
/*
prefix.fp_addr.ip4.data_u32 =
clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
- fib_table_entry_special_remove(fib_table->ft_index,
+ fib_table_entry_special_remove(fib_index,
&prefix,
ip4_specials[ii].ift_source);
}
+}
+
+static u32
+ip4_create_fib_with_table_id (u32 table_id,
+ fib_source_t src)
+{
+ fib_table_t *fib_table;
+ ip4_fib_t *v4_fib;
+
+ pool_get(ip4_main.fibs, fib_table);
+ clib_memset(fib_table, 0, sizeof(*fib_table));
+
+ pool_get_aligned(ip4_fibs, v4_fib, CLIB_CACHE_LINE_BYTES);
+
+ fib_table->ft_proto = FIB_PROTOCOL_IP4;
+ fib_table->ft_index = (v4_fib - ip4_fibs);
+
+ /*
+ * It is required that the index of the fib_table_t in its pool
+ * is the same as the index of the ip4_fib_t in its pool, since the
+ * rest of the code usues the 'fib_index' to mean either of these
+ * objects, depending on the context.
+ */
+ ASSERT(fib_table->ft_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 =
+ v4_fib->hash.table_id =
+ table_id;
+ fib_table->ft_flow_hash_config = IP_FLOW_HASH_DEFAULT;
+
+ fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_IP4, src);
+
+ ip4_fib_table_init(v4_fib);
+
+ /*
+ * add the special entries into the new FIB
+ */
+ ip4_fib_hash_load_specials(fib_table - ip4_main.fibs);
+
+ return (fib_table->ft_index);
+}
+
+void
+ip4_fib_table_destroy (u32 fib_index)
+{
+ fib_table_t *fib_table = pool_elt_at_index(ip4_main.fibs, fib_index);
+ ip4_fib_t *v4_fib = pool_elt_at_index(ip4_fibs, fib_table->ft_index);
+ u32 *n_locks;
+
+ /*
+ * remove all the specials we added when the table was created.
+ * In reverse order so the default route is last.
+ */
+ ip4_fib_hash_flush_specials(fib_table - ip4_main.fibs);
/*
* validate no more routes.
*/
- ASSERT(0 == fib_table->ft_total_route_counts);
- FOR_EACH_FIB_SOURCE(ii)
+#if CLIB_DEBUG > 0
+ if (0 != fib_table->ft_total_route_counts)
+ fib_table_assert_empty(fib_table);
+#endif
+
+ vec_foreach(n_locks, fib_table->ft_src_route_counts)
{
- ASSERT(0 == fib_table->ft_src_route_counts[ii]);
+ ASSERT(0 == *n_locks);
}
if (~0 != fib_table->ft_table_id)
hash_unset (ip4_main.fib_index_by_table_id, fib_table->ft_table_id);
}
- ip4_mtrie_free(&v4_fib->mtrie);
+ vec_free(fib_table->ft_src_route_counts);
+ ip4_fib_table_free(v4_fib);
- pool_put(ip4_main.v4_fibs, v4_fib);
+ pool_put(ip4_fibs, v4_fib);
pool_put(ip4_main.fibs, fib_table);
}
return (ip4_main.fib_index_by_sw_if_index[sw_if_index]);
}
-/*
- * ip4_fib_table_lookup_exact_match
- *
- * Exact match prefix lookup
- */
-fib_node_index_t
-ip4_fib_table_lookup_exact_match (const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- u32 key;
-
- hash = fib->fib_entry_by_dst_address[len];
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
-
- result = hash_get(hash, key);
-
- if (NULL != result) {
- return (result[0]);
- }
- return (FIB_NODE_INDEX_INVALID);
-}
-
-/*
- * ip4_fib_table_lookup_adj
- *
- * Longest prefix match
- */
-index_t
-ip4_fib_table_lookup_lb (ip4_fib_t *fib,
- const ip4_address_t *addr)
-{
- fib_node_index_t fei;
-
- fei = ip4_fib_table_lookup(fib, addr, 32);
-
- if (FIB_NODE_INDEX_INVALID != fei)
- {
- const dpo_id_t *dpo;
-
- dpo = fib_entry_contribute_ip_forwarding(fei);
-
- return (dpo->dpoi_index);
- }
- return (INDEX_INVALID);
-}
-
-/*
- * ip4_fib_table_lookup
- *
- * Longest prefix match
- */
-fib_node_index_t
-ip4_fib_table_lookup (const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- i32 mask_len;
- u32 key;
-
- for (mask_len = len; mask_len >= 0; mask_len--)
- {
- hash = fib->fib_entry_by_dst_address[mask_len];
- key = (addr->data_u32 & ip4_main.fib_masks[mask_len]);
-
- result = hash_get (hash, key);
-
- if (NULL != result) {
- return (result[0]);
- }
- }
- return (FIB_NODE_INDEX_INVALID);
-}
-
-void
-ip4_fib_table_entry_insert (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- fib_node_index_t fib_entry_index)
-{
- uword * hash, * result;
- u32 key;
-
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
- hash = fib->fib_entry_by_dst_address[len];
- result = hash_get (hash, key);
-
- if (NULL == result) {
- /*
- * adding a new entry
- */
- if (NULL == hash) {
- hash = hash_create (32 /* elts */, sizeof (uword));
- hash_set_flags (hash, HASH_FLAG_NO_AUTO_SHRINK);
- }
- hash = hash_set(hash, key, fib_entry_index);
- fib->fib_entry_by_dst_address[len] = hash;
- }
- else
- {
- ASSERT(0);
- }
-}
-
-void
-ip4_fib_table_entry_remove (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- u32 key;
-
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
- hash = fib->fib_entry_by_dst_address[len];
- result = hash_get (hash, key);
-
- if (NULL == result)
- {
- /*
- * removing a non-existant entry. i'll allow it.
- */
- }
- else
- {
- hash_unset(hash, key);
- }
-
- fib->fib_entry_by_dst_address[len] = hash;
-}
-
-void
-ip4_fib_table_fwding_dpo_update (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo)
-{
- 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,
- u32 cover_index)
-{
- 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
-ip4_fib_table_walk (ip4_fib_t *fib,
- fib_table_walk_fn_t fn,
- void *ctx)
-{
- int i;
-
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
-
- if (NULL != hash)
- {
- hash_pair_t * p;
-
- hash_foreach_pair (p, hash,
- ({
- fn(p->value[0], ctx);
- }));
- }
- }
-}
/**
* Walk show context
fib_node_index_t *ifsw_indicies;
} ip4_fib_show_walk_ctx_t;
-static int
+static fib_table_walk_rc_t
ip4_fib_show_walk_cb (fib_node_index_t fib_entry_index,
void *arg)
{
vec_add1(ctx->ifsw_indicies, fib_entry_index);
- return (1);
+ return (FIB_TABLE_WALK_CONTINUE);
}
static void
ip4_address_t *address,
u32 mask_len,
int detail)
-{
+{
vlib_cli_output(vm, "%U",
format_fib_entry,
ip4_fib_table_lookup(fib, address, mask_len),
u8 *
format_ip4_fib_table_memory (u8 * s, va_list * args)
{
- fib_table_t *fib_table;
- u64 total_memory;
-
- total_memory = 0;
-
- pool_foreach (fib_table, ip4_main.fibs,
- ({
- ip4_fib_t *fib;
- uword fib_size;
- int i;
-
- fib = pool_elt_at_index(ip4_main.v4_fibs, fib_table->ft_index);
- fib_size = ip4_fib_mtrie_memory_usage(&fib->mtrie);
-
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
-
- if (NULL != hash)
- {
- fib_size += hash_bytes(hash);
- }
- }
-
- total_memory += fib_size;
- }));
-
- s = format(s, "%=30s %=6d %=8ld\n",
+ s = format(s, "%=30s %=6d\n",
"IPv4 unicast",
- pool_elts(ip4_main.fibs), total_memory);
-
+ pool_elts(ip4_main.fibs));
return (s);
}
vlib_cli_command_t * cmd)
{
ip4_main_t * im4 = &ip4_main;
- fib_table_t * fib_table;
u64 total_mtrie_memory, total_hash_memory;
int verbose, matching, mtrie, memory;
ip4_address_t matching_address;
- u32 matching_mask = 32;
- int i, table_id = -1, fib_index = ~0;
+ u32 fib_index, matching_mask = 32;
+ int i, table_id = -1, user_fib_index = ~0;
int detail = 0;
verbose = 1;
else if (unformat (input, "table %d", &table_id))
;
- else if (unformat (input, "index %d", &fib_index))
+ else if (unformat (input, "index %d", &user_fib_index))
;
else
break;
}
- pool_foreach (fib_table, im4->fibs,
- ({
- ip4_fib_t *fib = pool_elt_at_index(im4->v4_fibs, fib_table->ft_index);
+ pool_foreach_index (fib_index, im4->fibs)
+ {
+ fib_table_t *fib_table = pool_elt_at_index(im4->fibs, fib_index);
+ ip4_fib_t *fib = pool_elt_at_index(ip4_fibs, fib_table->ft_index);
fib_source_t source;
u8 *s = NULL;
- if (table_id >= 0 && table_id != (int)fib->table_id)
+ if (table_id >= 0 && table_id != (int)fib->hash.table_id)
continue;
- if (fib_index != ~0 && fib_index != (int)fib->index)
+ if (user_fib_index != ~0 && user_fib_index != fib_index)
continue;
if (memory)
{
uword mtrie_size, hash_size;
- mtrie_size = ip4_fib_mtrie_memory_usage(&fib->mtrie);
+
+ mtrie_size = ip4_mtrie_memory_usage(&fib->mtrie);
hash_size = 0;
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
+ for (i = 0; i < ARRAY_LEN (fib->hash.fib_entry_by_dst_address); i++)
{
- uword * hash = fib->fib_entry_by_dst_address[i];
+ uword * hash = fib->hash.fib_entry_by_dst_address[i];
if (NULL != hash)
{
hash_size += hash_bytes(hash);
}
}
+
if (verbose)
vlib_cli_output (vm, "%U mtrie:%d hash:%d",
- format_fib_table_name, fib->index,
+ format_fib_table_name, fib_index,
FIB_PROTOCOL_IP4,
mtrie_size,
hash_size);
continue;
}
- s = format(s, "%U, fib_index:%d, flow hash:[%U] locks:[",
- format_fib_table_name, fib->index,
+ s = format(s, "%U, fib_index:%d, flow hash:[%U] epoch:%d flags:%U locks:[",
+ format_fib_table_name, fib_index,
FIB_PROTOCOL_IP4,
- fib->index,
+ fib_index,
format_ip_flow_hash_config,
- fib_table->ft_flow_hash_config);
- FOR_EACH_FIB_SOURCE(source)
+ fib_table->ft_flow_hash_config,
+ fib_table->ft_epoch,
+ format_fib_table_flags, fib_table->ft_flags);
+ vec_foreach_index(source, fib_table->ft_locks)
{
if (0 != fib_table->ft_locks[source])
{
/* Show summary? */
if (mtrie)
{
- vlib_cli_output (vm, "%U", format_ip4_fib_mtrie, &fib->mtrie, verbose);
+ vlib_cli_output (vm, "%U", format_ip4_mtrie, &fib->mtrie, verbose);
continue;
}
if (! verbose)
{
vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count");
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
+ for (i = 0; i < ARRAY_LEN (fib->hash.fib_entry_by_dst_address); i++)
{
- uword * hash = fib->fib_entry_by_dst_address[i];
+ uword * hash = fib->hash.fib_entry_by_dst_address[i];
uword n_elts = hash_elts (hash);
if (n_elts > 0)
vlib_cli_output (vm, "%20d%16d", i, n_elts);
ip4_fib_table_show_one(fib, vm, &matching_address,
matching_mask, detail);
}
- }));
+ }
if (memory)
+ {
vlib_cli_output (vm, "totals: mtrie:%ld hash:%ld all:%ld",
total_mtrie_memory,
total_hash_memory,
total_mtrie_memory + total_hash_memory);
-
+ }
return 0;
}
* entries for each table.
*
* @note This command will run for a long time when the FIB tables are
- * comprised of millions of entries. For those senarios, consider displaying
+ * comprised of millions of entries. For those scenarios, consider displaying
* a single table or summary mode.
*
* @cliexpar
Code Review / vpp.git / blobdiff