#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_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 fib_route_path_t *rpaths)
{
const bier_table_id_t *btid;
mpls_label_t olabel;
- bfm->bfm_id = *fmid;
- bfm->bfm_fib_index = bti;
+ *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 (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);
- bfm->bfm_label = clib_host_to_net_u32(bfm->bfm_label);
- }
- else
- {
- bfm->bfm_disp = rpath->frp_bier_fib_index;
+ /*
+ * leave this label in host byte order so we can OR in the TTL
+ */
+ if (NULL != rpaths->frp_label_stack)
+ {
+ olabel = rpaths->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, 0);
+ 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);
+ }
}
- btid = bier_table_get_id(bfm->bfm_fib_index);
- bier_fmask_bits_init(&bfm->bfm_bits, btid->bti_hdr_len);
- bier_fmask_resolve(bfm);
+ 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));
+
+ 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)
+ const fib_route_path_t *rpaths)
{
bier_fmask_t *bfm;
memset(bfm, 0, sizeof(*bfm));
+ bfm->bfm_id = clib_mem_alloc(sizeof(*bfm->bfm_id));
+
+ ASSERT(1 == vec_len(rpaths));
fib_node_init(&bfm->bfm_node, FIB_NODE_TYPE_BIER_FMASK);
- bier_fmask_init(bfm, fmid, bti, rpath);
+ bier_fmask_init(bfm, fmid, rpaths);
bier_fmask_lock(bier_fmask_get_index(bfm));
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",
+ 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(bfm->bfm_label));
+ }
+ else
+ {
+ s = format(s, " output-bfit:[%U]",
+ format_bier_bift_id,
+ vnet_mpls_uc_get_label(bfm->bfm_label));
+ }
+ s = format(s, "\n %U%U",
format_white_space, indent,
format_dpo_id, &bfm->bfm_dpo, indent+2);
{
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);
}));
}
Code Review / vpp.git / blobdiff