void
vr_fragment_table_exit(struct vrouter *router)
{
vr_fragment_table_scanner_exit(router);
if (router->vr_fragment_table)
vr_btable_free(router->vr_fragment_table);
if (router->vr_fragment_otable)
vr_btable_free(router->vr_fragment_otable);
return;
}
void
vr_mpls_exit(struct vrouter *router, bool soft_reset)
{
unsigned int i;
struct vr_nexthop *nh;
if (!router->vr_max_labels || !router->vr_ilm)
return;
for (i = 0; i < router->vr_max_labels; i++) {
nh = __vrouter_get_label(router, i);
if (nh) {
vrouter_put_nexthop(nh);
__vrouter_set_label(router, i, NULL);
}
}
if (soft_reset == false) {
vr_btable_free(router->vr_ilm);
router->vr_ilm = NULL;
router->vr_max_labels = 0;
}
return;
}
static void
vr_flow_table_destroy(struct vrouter *router)
{
if (router->vr_flow_table) {
vr_btable_free(router->vr_flow_table);
router->vr_flow_table = NULL;
}
if (router->vr_oflow_table) {
vr_btable_free(router->vr_oflow_table);
router->vr_oflow_table = NULL;
}
vr_flow_table_info_destroy(router);
return;
}
void
vr_htable_delete(vr_htable_t htable)
{
struct vr_htable *table = (struct vr_htable *)htable;
if (!table)
return;
if (table->ht_htable)
vr_btable_free(table->ht_htable);
if (table->ht_otable)
vr_btable_free(table->ht_otable);
if (table->ht_dtable)
vr_btable_free(table->ht_dtable);
vr_free(table, VR_HTABLE_OBJECT);
return;
}
struct vr_btable *
vr_btable_alloc(unsigned int num_entries, unsigned int entry_size)
{
unsigned int i = 0, num_parts, remainder;
unsigned int total_parts;
uint64_t total_mem;
struct vr_btable *table;
unsigned int offset = 0;
total_mem = num_entries * entry_size;
num_parts = total_mem / VR_SINGLE_ALLOC_LIMIT;
remainder = total_mem % VR_SINGLE_ALLOC_LIMIT;
total_parts = num_parts;
/*
* anything left over that is not a multiple of VR_SINGLE_ALLOC_LIMIT
* gets accomodated in the remainder, and hence an extra partition has
* to be given
*/
if (remainder)
total_parts++;
if (num_parts) {
/*
* the entry size has to be a factor of VR_SINGLE_ALLOC limit.
* otherwise, we might access memory beyond the allocated chunk
* while accessing the last entry
*/
if (VR_SINGLE_ALLOC_LIMIT % entry_size)
return NULL;
}
if (!total_parts)
return NULL;
table = vr_zalloc(sizeof(*table));
if (!table)
return NULL;
table->vb_mem = vr_zalloc(total_parts * sizeof(void *));
table->vb_table_info = vr_zalloc(total_parts *
sizeof(struct vr_btable_partition));
if (!table->vb_mem || !table->vb_table_info)
goto exit_alloc;
if (num_parts) {
for (i = 0; i < num_parts; i++) {
table->vb_mem[i] = vr_page_alloc(VR_SINGLE_ALLOC_LIMIT);
if (!table->vb_mem[i])
goto exit_alloc;
table->vb_table_info[i].vb_mem_size = VR_SINGLE_ALLOC_LIMIT;
table->vb_table_info[i].vb_offset = offset;
offset += table->vb_table_info[i].vb_mem_size;
table->vb_partitions++;
}
}
if (remainder) {
table->vb_mem[i] = vr_page_alloc(remainder);
if (!table->vb_mem[i])
goto exit_alloc;
table->vb_table_info[i].vb_mem_size = remainder;
table->vb_table_info[i].vb_offset = offset;
table->vb_partitions++;
}
table->vb_entries = num_entries;
table->vb_esize = entry_size;
return table;
exit_alloc:
vr_btable_free(table);
return NULL;
}
struct vr_btable *
vr_btable_alloc(unsigned int num_entries, unsigned int entry_size)
{
unsigned int i = 0, num_parts, remainder;
uint64_t total_mem;
struct vr_btable *table;
unsigned int offset = 0;
total_mem = num_entries * entry_size;
/* need more testing. that's all */
if (total_mem > VR_KNOWN_BIG_MEM_LIMIT)
return NULL;
table = vr_zalloc(sizeof(*table));
if (!table)
return NULL;
num_parts = total_mem / VR_SINGLE_ALLOC_LIMIT;
remainder = total_mem % VR_SINGLE_ALLOC_LIMIT;
if (num_parts + !!remainder > VR_MAX_BTABLE_ENTRIES)
return NULL;
if (num_parts) {
/*
* the entry size has to be a factor of VR_SINGLE_ALLOC limit.
* otherwise, we might access memory beyond the allocated chunk
* while accessing the last entry
*/
if (VR_SINGLE_ALLOC_LIMIT % entry_size)
return NULL;
}
if (num_parts) {
for (i = 0; i < num_parts; i++) {
table->vb_mem[i] = vr_page_alloc(VR_SINGLE_ALLOC_LIMIT);
if (!table->vb_mem[i])
goto exit_alloc;
table->vb_table_info[i].vb_mem_size = VR_SINGLE_ALLOC_LIMIT;
table->vb_table_info[i].vb_offset = offset;
offset += table->vb_table_info[i].vb_mem_size;
}
table->vb_partitions = num_parts;
}
if (remainder) {
table->vb_mem[i] = vr_page_alloc(remainder);
if (!table->vb_mem[i])
goto exit_alloc;
table->vb_table_info[i].vb_mem_size = remainder;
table->vb_table_info[i].vb_offset = offset;
table->vb_partitions++;
}
table->vb_entries = num_entries;
table->vb_esize = entry_size;
return table;
exit_alloc:
vr_btable_free(table);
return NULL;
}