}
};
+void
+ip4_fib_hash_load_specials (u32 fib_index)
+{
+ /*
+ * add the special entries into the new FIB
+ */
+ int ii;
+
+ for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
+ {
+ fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
+
+ prefix.fp_addr.ip4.data_u32 =
+ clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
+
+ fib_table_entry_special_add(fib_index,
+ &prefix,
+ ip4_specials[ii].ift_source,
+ ip4_specials[ii].ift_flag);
+ }
+}
+
+void
+ip4_fib_hash_flush_specials (u32 fib_index)
+{
+ int ii;
+
+ /*
+ * remove all the specials we added when the table was created.
+ * In reverse order so the default route is last.
+ */
+ for (ii = ARRAY_LEN(ip4_specials) - 1; ii >= 0; ii--)
+ {
+ fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
+
+ prefix.fp_addr.ip4.data_u32 =
+ clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
+
+ fib_table_entry_special_remove(fib_index,
+ &prefix,
+ ip4_specials[ii].ift_source);
+ }
+}
static u32
ip4_create_fib_with_table_id (u32 table_id,
pool_get(ip4_main.fibs, fib_table);
clib_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));
+ pool_get_aligned(ip4_fibs, v4_fib, CLIB_CACHE_LINE_BYTES);
fib_table->ft_proto = FIB_PROTOCOL_IP4;
- fib_table->ft_index =
- v4_fib->index =
- (fib_table - ip4_main.fibs);
+ 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->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_mtrie_16_init(&v4_fib->mtrie);
+ ip4_fib_table_init(v4_fib);
/*
* add the special entries into the new FIB
*/
- int ii;
-
- for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
- {
- fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
-
- 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,
- &prefix,
- ip4_specials[ii].ift_source,
- ip4_specials[ii].ift_flag);
- }
+ ip4_fib_hash_load_specials(fib_table - ip4_main.fibs);
return (fib_table->ft_index);
}
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_main.v4_fibs, fib_index);
+ ip4_fib_t *v4_fib = pool_elt_at_index(ip4_fibs, fib_table->ft_index);
u32 *n_locks;
- int ii;
/*
* remove all the specials we added when the table was created.
* In reverse order so the default route is last.
*/
- for (ii = ARRAY_LEN(ip4_specials) - 1; ii >= 0; ii--)
- {
- fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
-
- 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,
- &prefix,
- ip4_specials[ii].ift_source);
- }
+ ip4_fib_hash_flush_specials(fib_table - ip4_main.fibs);
/*
* validate no more routes.
}
vec_free(fib_table->ft_src_route_counts);
- ip4_mtrie_16_free(&v4_fib->mtrie);
+ 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-existent 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_mtrie_16_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)
-{
- const fib_prefix_t *cover_prefix;
- 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
- */
- cover_prefix = fib_entry_get_prefix(cover_index);
- cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);
-
- ip4_mtrie_16_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)
-{
- fib_prefix_t root = {
- .fp_proto = FIB_PROTOCOL_IP4,
- // address and length default to all 0
- };
-
- /*
- * A full tree walk is the dengenerate case of a sub-tree from
- * the very root
- */
- return (ip4_fib_table_sub_tree_walk(fib, &root, fn, ctx));
-}
-
-void
-ip4_fib_table_sub_tree_walk (ip4_fib_t *fib,
- const fib_prefix_t *root,
- fib_table_walk_fn_t fn,
- void *ctx)
-{
- fib_prefix_t *sub_trees = NULL;
- int i;
-
- /*
- * There is no efficient way to walk this array of hash tables.
- * so we walk each table with a mask length greater than and equal to
- * the required root and check it is covered by the root.
- */
- for (i = root->fp_len;
- i < ARRAY_LEN (fib->fib_entry_by_dst_address);
- i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
-
- if (NULL != hash)
- {
- ip4_address_t key;
- hash_pair_t * p;
-
- hash_foreach_pair (p, hash,
- ({
- key.as_u32 = p->key;
- if (ip4_destination_matches_route(&ip4_main,
- &key,
- &root->fp_addr.ip4,
- root->fp_len))
- {
- const fib_prefix_t *sub_tree;
- int skip = 0;
-
- /*
- * exclude sub-trees the walk does not want to explore
- */
- vec_foreach(sub_tree, sub_trees)
- {
- if (ip4_destination_matches_route(&ip4_main,
- &key,
- &sub_tree->fp_addr.ip4,
- sub_tree->fp_len))
- {
- skip = 1;
- break;
- }
- }
-
- if (!skip)
- {
- switch (fn(p->value[0], ctx))
- {
- case FIB_TABLE_WALK_CONTINUE:
- break;
- case FIB_TABLE_WALK_SUB_TREE_STOP: {
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_len = i,
- .fp_addr.ip4 = key,
- };
- vec_add1(sub_trees, pfx);
- break;
- }
- case FIB_TABLE_WALK_STOP:
- goto done;
- }
- }
- }
- }));
- }
- }
-done:
- vec_free(sub_trees);
- return;
-}
/**
* Walk show context
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)
+ pool_foreach_index (fib_index, im4->fibs)
{
- ip4_fib_t *fib = pool_elt_at_index(im4->v4_fibs, fib_table->ft_index);
+ 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_mtrie_16_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);
}
s = format(s, "%U, fib_index:%d, flow hash:[%U] epoch:%d flags:%U locks:[",
- format_fib_table_name, fib->index,
+ format_fib_table_name, fib_index,
FIB_PROTOCOL_IP4,
- fib->index,
+ fib_index,
format_ip_flow_hash_config,
fib_table->ft_flow_hash_config,
fib_table->ft_epoch,
/* Show summary? */
if (mtrie)
{
- vlib_cli_output (vm, "%U", format_ip4_mtrie_16, &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);
Code Review / vpp.git / blobdiff