#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/fib_walk.h>
+#include <vnet/fib/fib_path_list.h>
#include <vnet/bier/bier_table.h>
#include <vnet/bier/bier_fmask.h>
*/
bier_fmask_t *bier_fmask_pool;
+/**
+ * Stats for each BIER fmask object
+ */
+vlib_combined_counter_main_t bier_fmask_counters;
+
static inline index_t
bier_fmask_get_index (const bier_fmask_t *bfm)
{
{
bits->bfmb_refs = clib_mem_alloc(sizeof(bits->bfmb_refs[0]) *
bier_hdr_len_id_to_num_bits(hlid));
- memset(bits->bfmb_refs,
+ clib_memset(bits->bfmb_refs,
0,
(sizeof(bits->bfmb_refs[0]) *
bier_hdr_len_id_to_num_bits(hlid)));
sizeof(bits->bfmb_input_reset_string.bbs_buckets[0]) *
bier_hdr_len_id_to_num_buckets(hlid),
CLIB_CACHE_LINE_BYTES);
- memset(bits->bfmb_input_reset_string.bbs_buckets,
+ clib_memset(bits->bfmb_input_reset_string.bbs_buckets,
0,
sizeof(bits->bfmb_input_reset_string.bbs_buckets[0]) *
bier_hdr_len_id_to_num_buckets(hlid));
bier_fmask_stack (bier_fmask_t *bfm)
{
dpo_id_t via_dpo = DPO_INVALID;
+ fib_forward_chain_type_t fct;
- if (bfm->bfm_flags & BIER_FMASK_FLAG_DISP)
+ if (bfm->bfm_flags & BIER_FMASK_FLAG_MPLS)
{
- bier_disp_table_contribute_forwarding(bfm->bfm_disp,
- &via_dpo);
+ fct = FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS;
}
else
{
- fib_entry_contribute_forwarding(bfm->bfm_fei,
- FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
- &via_dpo);
+ fct = FIB_FORW_CHAIN_TYPE_BIER;
}
+ fib_path_list_contribute_forwarding(bfm->bfm_pl, fct,
+ FIB_PATH_LIST_FWD_FLAG_COLLAPSE,
+ &via_dpo);
+
/*
- * If the via fib entry provides no forwarding (i.e. a drop)
- * then niether does this fmask. That way children consider this fmask
+ * If the via PL entry provides no forwarding (i.e. a drop)
+ * then neither does this fmask. That way children consider this fmask
* unresolved and other ECMP options are used instead.
*/
- if (dpo_is_drop(&via_dpo) ||
- load_balance_is_drop(&via_dpo))
+ if (dpo_is_drop(&via_dpo))
{
bfm->bfm_flags &= ~BIER_FMASK_FLAG_FORWARDING;
}
}
}
-static void
-bier_fmask_resolve (bier_fmask_t *bfm)
-{
- if (bfm->bfm_flags & BIER_FMASK_FLAG_DISP)
- {
- bier_disp_table_lock(bfm->bfm_disp);
- }
- else
- {
- /*
- * source a recursive route through which we resolve.
- */
- fib_prefix_t pfx = {
- .fp_addr = bfm->bfm_id.bfmi_nh,
- .fp_proto = (ip46_address_is_ip4(&(bfm->bfm_id.bfmi_nh)) ?
- FIB_PROTOCOL_IP4 :
- FIB_PROTOCOL_IP6),
- .fp_len = (ip46_address_is_ip4(&(bfm->bfm_id.bfmi_nh)) ? 32 : 128),
- };
-
- bfm->bfm_fei = fib_table_entry_special_add(0, // default table
- &pfx,
- FIB_SOURCE_RR,
- FIB_ENTRY_FLAG_NONE);
-
- bfm->bfm_sibling = fib_entry_child_add(bfm->bfm_fei,
- FIB_NODE_TYPE_BIER_FMASK,
- bier_fmask_get_index(bfm));
- }
-
- bier_fmask_stack(bfm);
-}
-
-static void
-bier_fmask_unresolve (bier_fmask_t *bfm)
-{
- if (bfm->bfm_flags & BIER_FMASK_FLAG_DISP)
- {
- bier_disp_table_unlock(bfm->bfm_disp);
- }
- else
- {
- /*
- * un-source the recursive route through which we resolve.
- */
- fib_prefix_t pfx = {
- .fp_addr = bfm->bfm_id.bfmi_nh,
- .fp_proto = (ip46_address_is_ip4(&(bfm->bfm_id.bfmi_nh)) ?
- FIB_PROTOCOL_IP4 :
- FIB_PROTOCOL_IP6),
- .fp_len = (ip46_address_is_ip4(&(bfm->bfm_id.bfmi_nh)) ? 32 : 128),
- };
-
- fib_entry_child_remove(bfm->bfm_fei, bfm->bfm_sibling);
- fib_table_entry_special_remove(0, &pfx, FIB_SOURCE_RR);
- }
- dpo_reset(&bfm->bfm_dpo);
-}
-
u32
bier_fmask_child_add (fib_node_index_t bfmi,
fib_node_type_t child_type,
bier_fmask_child_remove (fib_node_index_t bfmi,
u32 sibling_index)
{
+ if (INDEX_INVALID == bfmi)
+ {
+ return;
+ }
+
fib_node_child_remove(FIB_NODE_TYPE_BIER_FMASK,
bfmi,
sibling_index);
static void
bier_fmask_init (bier_fmask_t *bfm,
const bier_fmask_id_t *fmid,
- index_t bti,
const fib_route_path_t *rpath)
{
const bier_table_id_t *btid;
+ fib_route_path_t *rpaths;
mpls_label_t olabel;
- bfm->bfm_id = *fmid;
- bfm->bfm_fib_index = bti;
+ clib_memset(bfm, 0, sizeof(*bfm));
+
+ bfm->bfm_id = clib_mem_alloc(sizeof(*bfm->bfm_id));
+
+ fib_node_init(&bfm->bfm_node, FIB_NODE_TYPE_BIER_FMASK);
+ *bfm->bfm_id = *fmid;
dpo_reset(&bfm->bfm_dpo);
+ btid = bier_table_get_id(bfm->bfm_id->bfmi_bti);
+ bier_fmask_bits_init(&bfm->bfm_bits, btid->bti_hdr_len);
- if (ip46_address_is_zero(&(bfm->bfm_id.bfmi_nh)))
+ if (rpath->frp_flags & FIB_ROUTE_PATH_UDP_ENCAP)
+ {
+ bfm->bfm_id->bfmi_nh_type = BIER_NH_UDP;
+ }
+ else if (ip46_address_is_zero(&(bfm->bfm_id->bfmi_nh)))
{
bfm->bfm_flags |= BIER_FMASK_FLAG_DISP;
}
if (!(bfm->bfm_flags & BIER_FMASK_FLAG_DISP))
{
- olabel = rpath->frp_label_stack[0];
- vnet_mpls_uc_set_label(&bfm->bfm_label, olabel);
- vnet_mpls_uc_set_exp(&bfm->bfm_label, 0);
- vnet_mpls_uc_set_s(&bfm->bfm_label, 1);
- vnet_mpls_uc_set_ttl(&bfm->bfm_label, 0xff);
+ if (NULL != rpath->frp_label_stack)
+ {
+ olabel = rpath->frp_label_stack[0].fml_value;
+ vnet_mpls_uc_set_label(&bfm->bfm_label, olabel);
+ vnet_mpls_uc_set_exp(&bfm->bfm_label, 0);
+ vnet_mpls_uc_set_s(&bfm->bfm_label, 1);
+ vnet_mpls_uc_set_ttl(&bfm->bfm_label, 64);
+ bfm->bfm_flags |= BIER_FMASK_FLAG_MPLS;
+ }
+ else
+ {
+ bier_bift_id_t id;
+
+ /*
+ * not an MPLS label
+ */
+ bfm->bfm_flags &= ~BIER_FMASK_FLAG_MPLS;
+
+ /*
+ * use a label as encoded for BIFT value
+ */
+ id = bier_bift_id_encode(btid->bti_set,
+ btid->bti_sub_domain,
+ btid->bti_hdr_len);
+ vnet_mpls_uc_set_label(&bfm->bfm_label, id);
+ vnet_mpls_uc_set_s(&bfm->bfm_label, 1);
+ vnet_mpls_uc_set_exp(&bfm->bfm_label, 0);
+ vnet_mpls_uc_set_ttl(&bfm->bfm_label, 64);
+ }
bfm->bfm_label = clib_host_to_net_u32(bfm->bfm_label);
}
- else
- {
- bfm->bfm_disp = rpath->frp_bier_fib_index;
- }
- btid = bier_table_get_id(bfm->bfm_fib_index);
- bier_fmask_bits_init(&bfm->bfm_bits, btid->bti_hdr_len);
- bier_fmask_resolve(bfm);
+ rpaths = NULL;
+ vec_add1(rpaths, *rpath);
+ bfm->bfm_pl = fib_path_list_create((FIB_PATH_LIST_FLAG_SHARED |
+ FIB_PATH_LIST_FLAG_NO_URPF),
+ rpaths);
+ bfm->bfm_sibling = fib_path_list_child_add(bfm->bfm_pl,
+ FIB_NODE_TYPE_BIER_FMASK,
+ bier_fmask_get_index(bfm));
+ vec_free(rpaths);
+ bier_fmask_stack(bfm);
}
static void
clib_mem_free(bfm->bfm_bits.bfmb_refs);
clib_mem_free(bfm->bfm_bits.bfmb_input_reset_string.bbs_buckets);
- bier_fmask_db_remove(bfm->bfm_fib_index, &(bfm->bfm_id));
- bier_fmask_unresolve(bfm);
+ bier_fmask_db_remove(bfm->bfm_id);
+ fib_path_list_child_remove(bfm->bfm_pl,
+ bfm->bfm_sibling);
+ dpo_reset(&bfm->bfm_dpo);
+ clib_mem_free(bfm->bfm_id);
pool_put(bier_fmask_pool, bfm);
}
index_t
bier_fmask_create_and_lock (const bier_fmask_id_t *fmid,
- index_t bti,
const fib_route_path_t *rpath)
{
bier_fmask_t *bfm;
+ index_t bfmi;
pool_get_aligned(bier_fmask_pool, bfm, CLIB_CACHE_LINE_BYTES);
+ bfmi = bier_fmask_get_index(bfm);
- memset(bfm, 0, sizeof(*bfm));
+ vlib_validate_combined_counter (&(bier_fmask_counters), bfmi);
+ vlib_zero_combined_counter (&(bier_fmask_counters), bfmi);
- fib_node_init(&bfm->bfm_node, FIB_NODE_TYPE_BIER_FMASK);
- bier_fmask_init(bfm, fmid, bti, rpath);
+ bier_fmask_init(bfm, fmid, rpath);
- bier_fmask_lock(bier_fmask_get_index(bfm));
+ bier_fmask_lock(bfmi);
- return (bier_fmask_get_index(bfm));
+ return (bfmi);
}
void
if (0 == bfm->bfm_bits.bfmb_refs[BIER_BP_TO_INDEX(bp)])
{
/*
- * 0 -> 1 transistion - set the bit in the string
+ * 0 -> 1 transition - set the bit in the string
*/
bier_bit_string_set_bit(&bfm->bfm_bits.bfmb_input_reset_string, bp);
}
if (0 == bfm->bfm_bits.bfmb_refs[BIER_BP_TO_INDEX(bp)])
{
/*
- * 1 -> 0 transistion - clear the bit in the string
+ * 1 -> 0 transition - clear the bit in the string
*/
bier_bit_string_clear_bit(&bfm->bfm_bits.bfmb_input_reset_string, bp);
}
u32 indent = va_arg(*ap, u32);
bier_fmask_attributes_t attr;
bier_fmask_t *bfm;
+ vlib_counter_t to;
if (pool_is_free_index(bier_fmask_pool, bfmi))
{
bfm = bier_fmask_get(bfmi);
s = format(s, "fmask: nh:%U bs:%U locks:%d ",
- format_ip46_address, &bfm->bfm_id.bfmi_nh, IP46_TYPE_ANY,
+ format_ip46_address, &bfm->bfm_id->bfmi_nh, IP46_TYPE_ANY,
format_bier_bit_string, &bfm->bfm_bits.bfmb_input_reset_string,
bfm->bfm_node.fn_locks);
s = format(s, "flags:");
s = format (s, "%s,", bier_fmask_attr_names[attr]);
}
}
- s = format(s, "\n%U%U",
+ vlib_get_combined_counter (&(bier_fmask_counters), bfmi, &to);
+ s = format (s, " to:[%Ld:%Ld]]", to.packets, to.bytes);
+ s = format(s, "\n");
+ s = fib_path_list_format(bfm->bfm_pl, s);
+
+ if (bfm->bfm_flags & BIER_FMASK_FLAG_MPLS)
+ {
+ s = format(s, " output-label:%U",
+ format_mpls_unicast_label,
+ vnet_mpls_uc_get_label(clib_net_to_host_u32(bfm->bfm_label)));
+ }
+ else
+ {
+ s = format(s, " output-bfit:[%U]",
+ format_bier_bift_id,
+ vnet_mpls_uc_get_label(clib_net_to_host_u32(bfm->bfm_label)));
+ }
+ s = format(s, "\n %U%U",
format_white_space, indent,
format_dpo_id, &bfm->bfm_dpo, indent+2);
return (s);
}
+void
+bier_fmask_get_stats (index_t bfmi, u64 * packets, u64 * bytes)
+{
+ vlib_counter_t to;
+
+ vlib_get_combined_counter (&(bier_fmask_counters), bfmi, &to);
+
+ *packets = to.packets;
+ *bytes = to.bytes;
+}
+
+void
+bier_fmask_encode (index_t bfmi,
+ bier_table_id_t *btid,
+ fib_route_path_encode_t *rpath)
+{
+ bier_fmask_t *bfm;
+
+ bfm = bier_fmask_get(bfmi);
+ *btid = *bier_table_get_id(bfm->bfm_id->bfmi_bti);
+
+ clib_memset(rpath, 0, sizeof(*rpath));
+
+ rpath->rpath.frp_sw_if_index = ~0;
+
+ switch (bfm->bfm_id->bfmi_nh_type)
+ {
+ case BIER_NH_UDP:
+ rpath->rpath.frp_flags = FIB_ROUTE_PATH_UDP_ENCAP;
+ rpath->rpath.frp_udp_encap_id = bfm->bfm_id->bfmi_id;
+ break;
+ case BIER_NH_IP:
+ memcpy(&rpath->rpath.frp_addr, &bfm->bfm_id->bfmi_nh,
+ sizeof(rpath->rpath.frp_addr));
+ break;
+ }
+}
static fib_node_t *
bier_fmask_get_node (fib_node_index_t index)
const static char *const bier_fmask_mpls_nodes[] =
{
- "bier-output"
+ "bier-output",
+ NULL
};
const static char * const * const bier_fmask_nodes[DPO_PROTO_NUM] =
{
{
pool_foreach(bfm, bier_fmask_pool,
({
- vlib_cli_output (vm, "%U",
+ vlib_cli_output (vm, "[@%d] %U",
+ bier_fmask_get_index(bfm),
format_bier_fmask, bier_fmask_get_index(bfm), 0);
}));
}
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