X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ffib%2Ffib_entry.c;h=d8c57fd1032bee90594c3dffdc5e23a4b2b879dc;hb=cbe25aab3be72154f2c706c39eeba6a77f34450f;hp=6ff692dea98df93bbb191a6225b3e3a50b53fd6f;hpb=097fa66b986f06281f603767d321ab13ab6c88c3;p=vpp.git diff --git a/src/vnet/fib/fib_entry.c b/src/vnet/fib/fib_entry.c index 6ff692dea98..d8c57fd1032 100644 --- a/src/vnet/fib/fib_entry.c +++ b/src/vnet/fib/fib_entry.c @@ -28,11 +28,12 @@ #include #include #include +#include +#include /* * Array of strings/names for the FIB sources */ -static const char *fib_source_names[] = FIB_SOURCES; static const char *fib_attribute_names[] = FIB_ENTRY_ATTRIBUTES; static const char *fib_src_attribute_names[] = FIB_ENTRY_SRC_ATTRIBUTES; @@ -95,16 +96,6 @@ fib_entry_get_default_chain_type (const fib_entry_t *fib_entry) return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4); } -u8 * -format_fib_source (u8 * s, va_list * args) -{ - fib_source_t source = va_arg (*args, int); - - s = format (s, "src:%s", fib_source_names[source]); - - return (s); -} - u8 * format_fib_entry_flags (u8 *s, va_list *args) { @@ -203,14 +194,13 @@ format_fib_entry (u8 * s, va_list * args) if (level >= FIB_ENTRY_FORMAT_DETAIL2) { - fib_entry_delegate_type_t fdt; - fib_entry_delegate_t *fed; + index_t *fedi; s = format (s, " Delegates:\n"); - FOR_EACH_DELEGATE(fib_entry, fdt, fed, + vec_foreach(fedi, fib_entry->fe_delegates) { - s = format(s, " %U\n", format_fib_entry_deletegate, fed); - }); + s = format(s, " %U\n", format_fib_entry_delegate, *fedi); + } } } @@ -284,7 +274,7 @@ fib_entry_src_get_source (const fib_entry_src_t *esrc) { return (esrc->fes_src); } - return (FIB_SOURCE_MAX); + return (FIB_SOURCE_INVALID); } static fib_entry_flag_t @@ -464,14 +454,17 @@ fib_entry_contribute_forwarding (fib_node_index_t fib_entry_index, } else { - fed = fib_entry_delegate_get(fib_entry, - fib_entry_chain_type_to_delegate_type(fct)); + fed = fib_entry_delegate_find(fib_entry, + fib_entry_chain_type_to_delegate_type(fct)); if (NULL == fed) { - fed = fib_entry_delegate_find_or_add( - fib_entry, - fib_entry_chain_type_to_delegate_type(fct)); + /* + * use a temporary DPO lest the delegate realloc in the recursive + * calculation. + */ + dpo_id_t tmp = DPO_INVALID; + /* * on-demand create eos/non-eos. * There is no on-demand delete because: @@ -482,7 +475,14 @@ fib_entry_contribute_forwarding (fib_node_index_t fib_entry_index, fib_entry_src_mk_lb(fib_entry, fib_entry_get_best_src_i(fib_entry), fct, - &fed->fd_dpo); + &tmp); + + fed = fib_entry_delegate_find_or_add( + fib_entry, + fib_entry_chain_type_to_delegate_type(fct)); + + dpo_copy(&fed->fd_dpo, &tmp); + dpo_reset(&tmp); } dpo_copy(dpo, &fed->fd_dpo); @@ -701,7 +701,7 @@ fib_entry_post_flag_update_actions (fib_entry_t *fib_entry, return (fib_entry); } -static void +static fib_entry_t* fib_entry_post_install_actions (fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t old_flags) @@ -709,6 +709,8 @@ fib_entry_post_install_actions (fib_entry_t *fib_entry, fib_entry = fib_entry_post_flag_update_actions(fib_entry, old_flags); fib_entry_src_action_installed(fib_entry, source); + + return (fib_entry); } fib_node_index_t @@ -743,7 +745,8 @@ fib_entry_create (u32 fib_index, fib_entry = fib_entry_get(fib_entry_index); fib_entry_src_action_activate(fib_entry, source); - fib_entry_post_install_actions(fib_entry, source, FIB_ENTRY_FLAG_NONE); + fib_entry = fib_entry_post_install_actions(fib_entry, source, + FIB_ENTRY_FLAG_NONE); FIB_ENTRY_DBG(fib_entry, "create"); @@ -771,7 +774,8 @@ fib_entry_create_special (u32 fib_index, fib_entry = fib_entry_src_action_add(fib_entry, source, flags, dpo); fib_entry_src_action_activate(fib_entry, source); - fib_entry_post_install_actions(fib_entry, source, FIB_ENTRY_FLAG_NONE); + fib_entry = fib_entry_post_install_actions(fib_entry, source, + FIB_ENTRY_FLAG_NONE); FIB_ENTRY_DBG(fib_entry, "create-special"); @@ -821,16 +825,17 @@ fib_entry_source_change_w_flags (fib_entry_t *fib_entry, fib_entry_flag_t old_flags, fib_source_t new_source) { - if (new_source < old_source) + switch (fib_source_cmp(new_source, old_source)) { + case FIB_SOURCE_CMP_BETTER: /* * we have a new winning source. */ fib_entry_src_action_deactivate(fib_entry, old_source); fib_entry_src_action_activate(fib_entry, new_source); - } - else if (new_source > old_source) - { + break; + + case FIB_SOURCE_CMP_WORSE: /* * the new source loses. Re-activate the winning sources * in case it is an interposer and hence relied on the losing @@ -838,15 +843,15 @@ fib_entry_source_change_w_flags (fib_entry_t *fib_entry, */ fib_entry_src_action_reactivate(fib_entry, old_source); return; - } - else - { + + case FIB_SOURCE_CMP_EQUAL: /* * the new source is one this entry already has. * But the path-list was updated, which will contribute new forwarding, * so install it. */ fib_entry_src_action_reactivate(fib_entry, new_source); + break; } fib_entry_post_update_actions(fib_entry, new_source, old_flags); @@ -969,7 +974,7 @@ fib_entry_source_removed (fib_entry_t *fib_entry, bsrc = fib_entry_get_best_src_i(fib_entry); best_source = fib_entry_src_get_source(bsrc); - if (FIB_SOURCE_MAX == best_source) + if (FIB_SOURCE_INVALID == best_source) { /* * no more sources left. this entry is toast. @@ -1025,16 +1030,16 @@ fib_entry_path_remove (fib_node_index_t fib_entry_index, * then we need to create a new one. else we are updating * an existing. */ - if (source < best_source) + switch (fib_source_cmp(source, best_source)) { + case FIB_SOURCE_CMP_BETTER: /* * Que! removing a path from a source that is better than the * one this entry is using. */ ASSERT(0); - } - else if (source > best_source ) - { + break; + case FIB_SOURCE_CMP_WORSE: /* * the source is not the best. no need to update forwarding */ @@ -1052,10 +1057,9 @@ fib_entry_path_remove (fib_node_index_t fib_entry_index, * that remain are non-inherited */ return (fib_entry_src_burn_only_inherited(fib_entry)); - } - } - else - { + } + break; + case FIB_SOURCE_CMP_EQUAL: /* * removing a path from the path-list we were using. */ @@ -1074,6 +1078,7 @@ fib_entry_path_remove (fib_node_index_t fib_entry_index, */ fib_entry_src_action_reactivate(fib_entry, source); } + break; } fib_entry_post_update_actions(fib_entry, source, bflags); @@ -1116,16 +1121,17 @@ fib_entry_special_remove (fib_node_index_t fib_entry_index, * then we need to create a new one. else we are updating * an existing. */ - if (source < best_source ) + switch (fib_source_cmp(source, best_source)) { + case FIB_SOURCE_CMP_BETTER: /* * Que! removing a path from a source that is better than the * one this entry is using. This can only mean it is a source * this prefix does not have. */ return (FIB_ENTRY_SRC_FLAG_ADDED); - } - else if (source > best_source ) { + + case FIB_SOURCE_CMP_WORSE: /* * the source is not the best. no need to update forwarding */ @@ -1159,9 +1165,9 @@ fib_entry_special_remove (fib_node_index_t fib_entry_index, return (FIB_ENTRY_SRC_FLAG_ADDED); } - } - else - { + break; + + case FIB_SOURCE_CMP_EQUAL: if (!(FIB_ENTRY_SRC_FLAG_ADDED & sflag)) { /* @@ -1176,6 +1182,7 @@ fib_entry_special_remove (fib_node_index_t fib_entry_index, */ fib_entry_src_action_reactivate(fib_entry, source); } + break; } fib_entry_post_update_actions(fib_entry, source, bflags); @@ -1297,7 +1304,9 @@ fib_entry_cover_changed (fib_node_index_t fib_entry_index) fib_entry_src_action_reactivate(fib_entry, fib_entry_src_get_source( fib_entry_get_best_src_i(fib_entry))); - fib_entry_post_install_actions(fib_entry, best_source, bflags); + fib_entry = fib_entry_post_install_actions(fib_entry, + best_source, + bflags); } else { @@ -1371,7 +1380,9 @@ fib_entry_cover_updated (fib_node_index_t fib_entry_index) fib_entry_src_action_reactivate(fib_entry, fib_entry_src_get_source( fib_entry_get_best_src_i(fib_entry))); - fib_entry_post_install_actions(fib_entry, best_source, bflags); + fib_entry = fib_entry_post_install_actions(fib_entry, + best_source, + bflags); } else { @@ -1486,7 +1497,7 @@ fib_entry_is_resolved (fib_node_index_t fib_entry_index) fib_entry = fib_entry_get(fib_entry_index); - fed = fib_entry_delegate_get(fib_entry, FIB_ENTRY_DELEGATE_BFD); + fed = fib_entry_delegate_find(fib_entry, FIB_ENTRY_DELEGATE_BFD); if (NULL == fed) { @@ -1642,6 +1653,8 @@ fib_entry_module_init (void) { fib_node_register_type(FIB_NODE_TYPE_ENTRY, &fib_entry_vft); fib_entry_logger = vlib_log_register_class("fib", "entry"); + + fib_entry_track_module_init(); } fib_route_path_t * @@ -1700,6 +1713,29 @@ fib_entry_pool_size (void) return (pool_elts(fib_entry_pool)); } +#ifdef CLIB_DEBUG +void +fib_table_assert_empty (const fib_table_t *fib_table) +{ + fib_node_index_t *fei, *feis = NULL; + fib_entry_t *fib_entry; + + pool_foreach (fib_entry, fib_entry_pool, + ({ + if (fib_entry->fe_fib_index == fib_table->ft_index) + vec_add1 (feis, fib_entry_get_index(fib_entry)); + })); + + if (vec_len(feis)) + { + vec_foreach (fei, feis) + clib_error ("%U", format_fib_entry, *fei, FIB_ENTRY_FORMAT_DETAIL); + } + + ASSERT(0); +} +#endif + static clib_error_t * show_fib_entry_command (vlib_main_t * vm, unformat_input_t * input,