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-rw-r--r--hicn-plugin/src/strategies/dpo_mw.c205
1 files changed, 42 insertions, 163 deletions
diff --git a/hicn-plugin/src/strategies/dpo_mw.c b/hicn-plugin/src/strategies/dpo_mw.c
index 3317d31e0..eebb572c4 100644
--- a/hicn-plugin/src/strategies/dpo_mw.c
+++ b/hicn-plugin/src/strategies/dpo_mw.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
@@ -13,27 +13,10 @@
* limitations under the License.
*/
-#include "../strategy_dpo_ctx.h"
#include "dpo_mw.h"
#include "strategy_mw.h"
#include "../strategy_dpo_manager.h"
-
-hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx_pool;
-
-const static char *const hicn_ip6_nodes[] = {
- "hicn-mw-strategy", // this is the name you give your node in VLIB_REGISTER_NODE
- NULL,
-};
-
-const static char *const hicn_ip4_nodes[] = {
- "hicn-mw-strategy", // this is the name you give your node in VLIB_REGISTER_NODE
- NULL,
-};
-
-const static char *const *const hicn_nodes_mw[DPO_PROTO_NUM] = {
- [DPO_PROTO_IP6] = hicn_ip6_nodes,
- [DPO_PROTO_IP4] = hicn_ip4_nodes,
-};
+#include "../strategy_dpo_ctx.h"
/**
* @brief DPO type value for the mw_strategy
@@ -41,16 +24,13 @@ const static char *const *const hicn_nodes_mw[DPO_PROTO_NUM] = {
static dpo_type_t hicn_dpo_type_mw;
static const hicn_dpo_vft_t hicn_dpo_mw_vft = {
- .hicn_dpo_get_ctx = &hicn_strategy_mw_ctx_get,
.hicn_dpo_is_type = &hicn_dpo_is_type_strategy_mw,
.hicn_dpo_get_type = &hicn_dpo_strategy_mw_get_type,
.hicn_dpo_module_init = &hicn_dpo_strategy_mw_module_init,
.hicn_dpo_create = &hicn_strategy_mw_ctx_create,
.hicn_dpo_add_update_nh = &hicn_strategy_mw_ctx_add_nh,
.hicn_dpo_del_nh = &hicn_strategy_mw_ctx_del_nh,
- .hicn_dpo_lock_dpo_ctx = &hicn_strategy_mw_ctx_lock,
- .hicn_dpo_unlock_dpo_ctx = hicn_strategy_mw_ctx_unlock,
- .format_hicn_dpo = &format_hicn_dpo_strategy_mw
+ .hicn_dpo_format = &hicn_strategy_mw_format_ctx
};
int
@@ -62,28 +42,15 @@ hicn_dpo_is_type_strategy_mw (const dpo_id_t * dpo)
void
hicn_dpo_strategy_mw_module_init (void)
{
- pool_validate_index (hicn_strategy_mw_ctx_pool, 0);
/*
* Register our type of dpo
*/
hicn_dpo_type_mw =
- hicn_dpo_register_new_type (hicn_nodes_mw, &hicn_dpo_mw_vft,
+ hicn_dpo_register_new_type (hicn_nodes_strategy, &hicn_dpo_mw_vft,
hicn_mw_strategy_get_vft (),
&dpo_strategy_mw_ctx_vft);
}
-u8 *
-format_hicn_dpo_strategy_mw (u8 * s, va_list * ap)
-{
-
- u32 indent = va_arg (*ap, u32);
- s =
- format (s,
- "Static Weights: weights are updated by the control plane, next hop is the one with the maximum weight.\n",
- indent);
- return (s);
-}
-
dpo_type_t
hicn_dpo_strategy_mw_get_type (void)
{
@@ -92,33 +59,14 @@ hicn_dpo_strategy_mw_get_type (void)
//////////////////////////////////////////////////////////////////////////////////////////////////
-void
-hicn_strategy_mw_ctx_lock (dpo_id_t * dpo)
-{
- hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx =
- (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo->dpoi_index);
-
- if (hicn_strategy_mw_ctx != NULL)
- {
- hicn_strategy_mw_ctx->default_ctx.locks++;
- }
-}
-void
-hicn_strategy_mw_ctx_unlock (dpo_id_t * dpo)
+u8 *
+hicn_strategy_mw_format_ctx (u8 * s, int n, ...)
{
- hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx =
- (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo->dpoi_index);
-
- if (hicn_strategy_mw_ctx != NULL)
- {
- hicn_strategy_mw_ctx->default_ctx.locks--;
-
- if (0 == hicn_strategy_mw_ctx->default_ctx.locks)
- {
- pool_put (hicn_strategy_mw_ctx_pool, hicn_strategy_mw_ctx);
- }
- }
+ va_list args;
+ va_start (args, n);
+ s = format_hicn_strategy_mw_ctx (s, &args);
+ return s;
}
u8 *
@@ -126,24 +74,30 @@ format_hicn_strategy_mw_ctx (u8 * s, va_list * ap)
{
int i = 0;
index_t index = va_arg (*ap, index_t);
- hicn_strategy_mw_ctx_t *dpo = NULL;
+ hicn_dpo_ctx_t *dpo_ctx = NULL;
+ hicn_strategy_mw_ctx_t *mw_dpo_ctx = NULL;
dpo_id_t *next_hop = NULL;
hicn_face_vft_t *face_vft = NULL;
u32 indent = va_arg (*ap, u32);;
- dpo = (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (index);
+ dpo_ctx = hicn_strategy_dpo_ctx_get (index);
+ if (dpo_ctx == NULL)
+ return s;
+
+ mw_dpo_ctx = (hicn_strategy_mw_ctx_t *) dpo_ctx->data;
s = format (s, "hicn-mw");
- for (i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX && dpo != NULL; i++)
+ for (i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++)
{
u8 *buf = NULL;
- if (i < dpo->default_ctx.entry_count)
- buf = format(NULL, "FIB");
- else if (i >= HICN_PARAM_FIB_ENTRY_NHOPS_MAX - dpo->default_ctx.tfib_entry_count)
- buf = format(NULL, "TFIB");
+ if (i < dpo_ctx->entry_count)
+ buf = format (NULL, "FIB");
+ else if (i >=
+ HICN_PARAM_FIB_ENTRY_NHOPS_MAX - dpo_ctx->tfib_entry_count)
+ buf = format (NULL, "TFIB");
else
continue;
- next_hop = &dpo->default_ctx.next_hops[i];
+ next_hop = &dpo_ctx->next_hops[i];
face_vft = hicn_face_get_vft (next_hop->dpoi_type);
if (face_vft != NULL)
{
@@ -151,7 +105,7 @@ format_hicn_strategy_mw_ctx (u8 * s, va_list * ap)
s =
format (s, "%U ", face_vft->format_face, next_hop->dpoi_index,
indent);
- s = format (s, "weight %u", dpo->weight[i]);
+ s = format (s, "weight %u", mw_dpo_ctx->weight[i]);
s = format (s, " %s", buf);
}
}
@@ -159,124 +113,49 @@ format_hicn_strategy_mw_ctx (u8 * s, va_list * ap)
return (s);
}
-static index_t
-hicn_strategy_mw_ctx_get_index (hicn_strategy_mw_ctx_t * cd)
-{
- return (cd - hicn_strategy_mw_ctx_pool);
-}
-
-int
+void
hicn_strategy_mw_ctx_create (dpo_proto_t proto, const dpo_id_t * next_hop,
int nh_len, index_t * dpo_idx)
{
hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx;
- int ret = HICN_ERROR_NONE, i;
+ hicn_dpo_ctx_t *hicn_strategy_ctx;
/* Allocate a hicn_dpo_ctx on the vpp pool and initialize it */
- pool_get (hicn_strategy_mw_ctx_pool, hicn_strategy_mw_ctx);
+ hicn_strategy_ctx = hicn_strategy_dpo_ctx_alloc ();
+ hicn_strategy_mw_ctx = (hicn_strategy_mw_ctx_t *) hicn_strategy_ctx->data;
- *dpo_idx = hicn_strategy_mw_ctx_get_index (hicn_strategy_mw_ctx);
+ *dpo_idx = hicn_strategy_dpo_ctx_get_index (hicn_strategy_ctx);
- init_dpo_ctx (&(hicn_strategy_mw_ctx->default_ctx));
-
- for (i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX && i < nh_len; i++)
- {
- clib_memcpy (&hicn_strategy_mw_ctx->default_ctx.next_hops[i],
- &next_hop[i], sizeof (dpo_id_t));
- hicn_strategy_mw_ctx->default_ctx.entry_count++;
- }
+ init_dpo_ctx (hicn_strategy_ctx, next_hop, nh_len, hicn_dpo_type_mw);
memset (hicn_strategy_mw_ctx->weight, 0, HICN_PARAM_FIB_ENTRY_NHOPS_MAX);
-
- return ret;
-}
-
-hicn_dpo_ctx_t *
-hicn_strategy_mw_ctx_get (index_t index)
-{
- hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx = NULL;
- if (!pool_is_free_index (hicn_strategy_mw_ctx_pool, index))
- {
- hicn_strategy_mw_ctx =
- (pool_elt_at_index (hicn_strategy_mw_ctx_pool, index));
- }
-
- return (hicn_dpo_ctx_t *)hicn_strategy_mw_ctx;
}
int
hicn_strategy_mw_ctx_add_nh (const dpo_id_t * nh, index_t dpo_idx)
{
- hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx =
- (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo_idx);
+ hicn_dpo_ctx_t *hicn_strategy_dpo_ctx = hicn_strategy_dpo_ctx_get (dpo_idx);
+ u8 pos = 0;
- if (hicn_strategy_mw_ctx == NULL)
+ if (hicn_strategy_dpo_ctx == NULL)
{
return HICN_ERROR_STRATEGY_NOT_FOUND;
}
- int empty = hicn_strategy_mw_ctx->default_ctx.entry_count;
-
- /* Iterate through the list of faces to add new faces */
- for (int i = 0; i < hicn_strategy_mw_ctx->default_ctx.entry_count; i++)
- {
- if (!memcmp
- (nh, &hicn_strategy_mw_ctx->default_ctx.next_hops[i],
- sizeof (dpo_id_t)))
- {
- /* If face is marked as deleted, ignore it */
- hicn_face_t *face =
- hicn_dpoi_get_from_idx (hicn_strategy_mw_ctx->
- default_ctx.next_hops[i].dpoi_index);
- if (face->shared.flags & HICN_FACE_FLAGS_DELETED)
- {
- continue;
- }
- return HICN_ERROR_DPO_CTX_NHOPS_EXISTS;
- }
- }
-
- /* Get an empty place */
- if (empty > HICN_PARAM_FIB_ENTRY_NHOPS_MAX)
- {
- return HICN_ERROR_DPO_CTX_NHOPS_NS;
- }
-
- clib_memcpy (&hicn_strategy_mw_ctx->default_ctx.next_hops[empty], nh,
- sizeof (dpo_id_t));
- hicn_strategy_mw_ctx->default_ctx.entry_count++;
+ hicn_strategy_dpo_ctx_add_nh (nh, hicn_strategy_dpo_ctx, &pos);
+ hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx =
+ (hicn_strategy_mw_ctx_t *) & hicn_strategy_dpo_ctx->data;
+ hicn_strategy_mw_ctx->weight[pos] = DEFAULT_WEIGHT;
return HICN_ERROR_NONE;
}
int
-hicn_strategy_mw_ctx_del_nh (hicn_face_id_t face_id, index_t dpo_idx,
- fib_prefix_t * fib_pfx)
+hicn_strategy_mw_ctx_del_nh (hicn_face_id_t face_id, index_t dpo_idx)
{
- hicn_strategy_mw_ctx_t *hicn_strategy_mw_ctx =
- (hicn_strategy_mw_ctx_t *) hicn_strategy_mw_ctx_get (dpo_idx);
- int ret = HICN_ERROR_DPO_CTX_NOT_FOUND;
- dpo_id_t invalid = NEXT_HOP_INVALID;
-
- if (hicn_strategy_mw_ctx == NULL)
- return HICN_ERROR_STRATEGY_NOT_FOUND;
-
- for (int i = 0; i < hicn_strategy_mw_ctx->default_ctx.entry_count; i++)
- {
- if (hicn_strategy_mw_ctx->default_ctx.next_hops[i].dpoi_index ==
- face_id)
- {
- hicn_face_unlock (&hicn_strategy_mw_ctx->default_ctx.
- next_hops[i]);
- hicn_strategy_mw_ctx->default_ctx.entry_count--;
- hicn_strategy_mw_ctx->default_ctx.next_hops[i] = hicn_strategy_mw_ctx->default_ctx.next_hops[hicn_strategy_mw_ctx->default_ctx.entry_count];
- hicn_strategy_mw_ctx->default_ctx.next_hops[hicn_strategy_mw_ctx->default_ctx.entry_count] = invalid;
- ret = HICN_ERROR_NONE;
- break;
- }
- }
-
- return ret;
+ hicn_dpo_ctx_t *hicn_strategy_dpo_ctx = hicn_strategy_dpo_ctx_get (dpo_idx);
+ //No need to flush the weights, they are initialized when a dpo_ctx is created;
+ return hicn_strategy_dpo_ctx_del_nh (face_id, hicn_strategy_dpo_ctx);
}
/*