fib_entry_src_vft[source].fesv_init(&esrc);
}
- vec_add1(fib_entry->fe_srcs, esrc);
- vec_sort_with_function(fib_entry->fe_srcs,
- fib_entry_src_cmp_for_sort);
+ if (fib_entry_has_multiple_srcs(fib_entry))
+ {
+ vec_add1(fib_entry->fe_u_src.fe_srcs, esrc);
+
+ vec_sort_with_function(fib_entry->fe_u_src.fe_srcs,
+ fib_entry_src_cmp_for_sort);
+ }
+ else
+ {
+ /*
+ * is this the very first source
+ */
+ if (FIB_SOURCE_INVALID == fib_entry->fe_u_src.fe_src.fes_src)
+ {
+ clib_memcpy(&fib_entry->fe_u_src.fe_src, &esrc, sizeof(esrc));
+ }
+ else
+ {
+ /*
+ * transitioning to multiple sources.
+ * allocate the vecotr of sources.
+ */
+ fib_entry_src_t *srcs = NULL;
+
+ vec_validate(srcs, 1);
+
+ /*
+ * sorted insert
+ */
+ if (fib_entry->fe_u_src.fe_src.fes_src < esrc.fes_src)
+ {
+ srcs[0] = fib_entry->fe_u_src.fe_src;
+ srcs[1] = esrc;
+ }
+ else
+ {
+ srcs[0] = esrc;
+ srcs[1] = fib_entry->fe_u_src.fe_src;
+ }
+ memset(&fib_entry->fe_u_src.fe_src, 0,
+ sizeof(fib_entry->fe_u_src.fe_src));
+ fib_entry->fe_u_src.fe_srcs = srcs;
+
+ fib_entry->fe_node.fn_pad |= FIB_ENTRY_NODE_FLAG_MULTIPLE_SRCS;
+ }
+ }
+}
+
+u32
+fib_entry_has_multiple_srcs(const fib_entry_t * fib_entry)
+{
+ return (fib_entry->fe_node.fn_pad & FIB_ENTRY_NODE_FLAG_MULTIPLE_SRCS);
}
static fib_entry_src_t *
-fib_entry_src_find (const fib_entry_t *fib_entry,
+fib_entry_src_find (fib_entry_t *fib_entry,
fib_source_t source,
u32 *index)
int ii;
ii = 0;
- vec_foreach(esrc, fib_entry->fe_srcs)
+ if (fib_entry_has_multiple_srcs(fib_entry))
{
- if (esrc->fes_src == source)
- {
- if (NULL != index)
- {
- *index = ii;
- }
- return (esrc);
- }
- else
- {
- ii++;
- }
+ vec_foreach(esrc, fib_entry->fe_u_src.fe_srcs)
+ {
+ if (esrc->fes_src == source)
+ {
+ if (NULL != index)
+ {
+ *index = ii;
+ }
+ return (esrc);
+ }
+ else
+ {
+ ii++;
+ }
+ }
+ }
+ else
+ {
+ esrc = &fib_entry->fe_u_src.fe_src;
+ if (esrc->fes_src == source)
+ {
+ if (NULL != index)
+ {
+ *index = -1;
+ }
+ return (esrc);
+ }
+ }
+
+ return (NULL);
+}
+
+static fib_entry_src_t *
+fib_entry_src_delete (fib_entry_t *fib_entry,
+ u32 index)
+
+{
+ if (-1 == index)
+ {
+ ASSERT(!fib_entry_has_multiple_srcs(fib_entry));
+ memset(&fib_entry->fe_u_src.fe_src, 0,
+ sizeof(fib_entry->fe_u_src.fe_src));
+ }
+ else
+ {
+ vec_del1(fib_entry->fe_u_src.fe_srcs, index);
+
+ ASSERT(vec_len(fib_entry->fe_u_src.fe_srcs));
+ if (1 == vec_len(fib_entry->fe_u_src.fe_srcs))
+ {
+ /*
+ * Is there much point in transitioning back?
+ * We've paid the cost of the malloc for the vector,
+ * why not keep it.
+ * Favour memory use. If the expectation that multiple sources
+ * is rare is correct, then we should expect this entry is
+ * unlikely to need the vector again
+ */
+ fib_entry_src_t *srcs;
+
+ srcs = fib_entry->fe_u_src.fe_srcs;
+ fib_entry->fe_node.fn_pad &= ~FIB_ENTRY_NODE_FLAG_MULTIPLE_SRCS;
+ clib_memcpy(&fib_entry->fe_u_src.fe_src,
+ &srcs[0],
+ sizeof(fib_entry->fe_u_src.fe_src));
+ vec_free(srcs);
+ }
+ else
+ {
+ vec_sort_with_function(fib_entry->fe_u_src.fe_srcs,
+ fib_entry_src_cmp_for_sort);
+ }
}
return (NULL);
static fib_entry_src_t *
fib_entry_src_find_or_create (fib_entry_t *fib_entry,
- fib_source_t source,
- u32 *index)
+ fib_source_t source)
{
fib_entry_src_t *esrc;
}
fib_path_ext_list_flush(&esrc->fes_path_exts);
- vec_del1(fib_entry->fe_srcs, index);
+ fib_entry_src_delete(fib_entry, index);
}
fib_entry_src_cover_res_t
fib_entry->fe_sibling = FIB_NODE_INDEX_INVALID;
}
-static void
-fib_entry_src_action_fwd_update (const fib_entry_t *fib_entry,
- fib_source_t source)
-{
- fib_entry_src_t *esrc;
-
- vec_foreach(esrc, fib_entry->fe_srcs)
- {
- if (NULL != fib_entry_src_vft[esrc->fes_src].fesv_fwd_update)
- {
- fib_entry_src_vft[esrc->fes_src].fesv_fwd_update(esrc,
- fib_entry,
- source);
- }
- }
-}
-
void
fib_entry_src_action_reactivate (fib_entry_t *fib_entry,
fib_source_t source)
fib_path_list_unlock(path_list_index);
}
fib_entry_src_action_install(fib_entry, source);
- fib_entry_src_action_fwd_update(fib_entry, source);
}
void
-fib_entry_src_action_installed (const fib_entry_t *fib_entry,
+fib_entry_src_action_installed (fib_entry_t *fib_entry,
fib_source_t source)
{
fib_entry_src_t *esrc;
fib_entry_src_vft[source].fesv_installed(esrc,
fib_entry);
}
-
- fib_entry_src_action_fwd_update(fib_entry, source);
}
/*
fib_node_index_t fib_entry_index;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find_or_create(fib_entry, source, NULL);
+ esrc = fib_entry_src_find_or_create(fib_entry, source);
esrc->fes_ref_count++;
fib_node_index_t fib_entry_index, old_path_list_index;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find_or_create(fib_entry, source, NULL);
+ esrc = fib_entry_src_find_or_create(fib_entry, source);
if (NULL == esrc)
return (fib_entry_src_action_add(fib_entry, source, flags, dpo));
return (FIB_ENTRY_FLAG_NONE);
}
-fib_entry_flag_t
-fib_entry_get_flags_i (const fib_entry_t *fib_entry)
-{
- fib_entry_flag_t flags;
-
- /*
- * the vector of sources is deliberately arranged in priority order
- */
- if (0 == vec_len(fib_entry->fe_srcs))
- {
- flags = FIB_ENTRY_FLAG_NONE;
- }
- else
- {
- fib_entry_src_t *esrc;
-
- esrc = vec_elt_at_index(fib_entry->fe_srcs, 0);
- flags = esrc->fes_entry_flags;
- }
-
- return (flags);
-}
-
void
fib_entry_set_source_data (fib_node_index_t fib_entry_index,
fib_source_t source,
Code Review / vpp.git / blobdiff