diff options
Diffstat (limited to 'hicn-plugin/src/data_push_node.c')
| -rw-r--r-- | hicn-plugin/src/data_push_node.c | 326 |
1 files changed, 0 insertions, 326 deletions
diff --git a/hicn-plugin/src/data_push_node.c b/hicn-plugin/src/data_push_node.c deleted file mode 100644 index 18c4690b1..000000000 --- a/hicn-plugin/src/data_push_node.c +++ /dev/null @@ -1,326 +0,0 @@ -/* - * Copyright (c) 2017-2019 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: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <vlib/vlib.h> -#include <vnet/vnet.h> - -#include "hicn.h" -#include "parser.h" -#include "strategy_dpo_ctx.h" -#include "infra.h" -#include "mgmt.h" -#include "pcs.h" -#include "state.h" - -/* - * Node context data (to be used in all the strategy nodes); we think this is - * per-thread/instance - */ -typedef struct hicn_data_push_runtime_s -{ - int id; - hicn_pit_cs_t *pitcs; -} hicn_data_push_runtime_t; - -/* Stats string values */ -static char *hicn_data_push_error_strings[] = { -#define _(sym, string) string, - foreach_hicnfwd_error -#undef _ -}; - -typedef enum -{ - HICN_DATA_PUSH_NEXT_FWD, - HICN_DATA_PUSH_NEXT_ERROR_DROP, - HICN_DATA_PUSH_N_NEXT, -} hicn_data_push_next_t; - -/* Trace context struct */ -typedef struct -{ - u32 next_index; - u32 sw_if_index; - u8 pkt_type; -} hicn_data_push_trace_t; - -vlib_node_registration_t hicn_data_push_node; - -always_inline void -prep_buffer_for_cs (vlib_main_t * vm, vlib_buffer_t * b0, u8 isv6) -{ - word buffer_advance = CLIB_CACHE_LINE_BYTES * 2; - hicn_buffer_t *hicnb = hicn_get_buffer (b0); - - if (PREDICT_TRUE (b0->next_buffer == 0)) - { - b0->total_length_not_including_first_buffer = 0; - b0->flags &= ~VLIB_BUFFER_NEXT_PRESENT; - } - - /* - * Mark the buffer as smaller than TWO_CL. It will be stored as is in the CS, without excluding - * the hicn_header. Cloning is not possible, it will be copied. - */ - if (b0->current_length <= (buffer_advance + (CLIB_CACHE_LINE_BYTES * 2))) - { - /* In this case the packet is copied. We don't need to add a reference as no buffer are - * chained to it. - */ - hicnb->flags |= HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL; - } - else - { - vlib_buffer_advance (b0, buffer_advance); - } -} - -always_inline int -hicn_new_data (vlib_main_t * vm, hicn_data_push_runtime_t * rt, - vlib_buffer_t * b0, u32 ** to_forward, u32 * n_to_forward, - f64 tnow, u8 * nameptr, u16 namelen, u8 isv6) -{ - int ret; - u32 bi0 = vlib_get_buffer_index (vm, b0); - hicn_hash_node_t *nodep; - hicn_pcs_entry_t *pitp; - hicn_header_t *hicn0 = vlib_buffer_get_current (b0); - hicn_buffer_t *hicnb0 = hicn_get_buffer (b0); - u32 node_id0 = 0; - index_t dpo_ctx_id0 = ~0; - u8 vft_id0 = default_dpo.hicn_dpo_get_type (); - u8 is_cs0 = 1; - u8 hash_entry_id = 0; - u32 bucket_id = ~0; - u8 bucket_is_overflow = 0; - hicn_lifetime_t dmsg_lifetime; - - hicnb0 = hicn_get_buffer (b0); - hicn_type_t type = hicnb0->type; - hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, - &dmsg_lifetime); - - if (!dmsg_lifetime) - { - vlib_buffer_free_one (vm, bi0); - return HICN_ERROR_NONE; - } - - /* Create PIT node and init PIT entry */ - nodep = hicn_hashtb_alloc_node (rt->pitcs->pcs_table); - if (PREDICT_FALSE (nodep == NULL)) - { - vlib_buffer_free_one (vm, bi0); - /* Nothing we can do - no mem */ - return HICN_ERROR_HASHTB_NOMEM; - } - - pitp = hicn_pit_get_data (nodep); - hicn_cs_init_data (pitp); - pitp->shared.create_time = tnow; - - if (dmsg_lifetime < HICN_PARAM_CS_LIFETIME_MIN - || dmsg_lifetime > HICN_PARAM_CS_LIFETIME_MAX) - { - dmsg_lifetime = HICN_PARAM_CS_LIFETIME_DFLT; - } - pitp->shared.expire_time = hicn_pcs_get_exp_time (tnow, dmsg_lifetime); - - /* Store the original packet buffer in the CS node */ - pitp->u.cs.cs_pkt_buf = vlib_get_buffer_index (vm, b0); - - /* Set up the hash node and insert it */ - hicn_hashtb_init_node (rt->pitcs->pcs_table, nodep, nameptr, namelen); - - - hicn_hash_entry_t *hash_entry; - ret = - hicn_pcs_cs_insert_update (vm, rt->pitcs, pitp, nodep, &hash_entry, - hicnb0->name_hash, &node_id0, &dpo_ctx_id0, - &vft_id0, &is_cs0, &hash_entry_id, &bucket_id, - &bucket_is_overflow, hicnb0->face_id); - - if (ret != HICN_ERROR_NONE) - { - hicn_hashtb_free_node (rt->pitcs->pcs_table, nodep); - } - - if (ret != HICN_ERROR_HASHTB_NOMEM) - { - if (!is_cs0) - { - ASSERT (ret != HICN_ERROR_NONE); - hicn_store_internal_state (b0, hicnb0->name_hash, node_id0, - dpo_ctx_id0, vft_id0, hash_entry_id, - bucket_id, bucket_is_overflow); - - (*to_forward)[0] = bi0; - *to_forward += 1; - *n_to_forward += 1; - } - else - { - prep_buffer_for_cs (vm, b0, isv6); - } - } - - return (ret); - -} - -/* - * ICN strategy later node for interests: - 1 packet at a time - ipv4/tcp - * ipv6/tcp - */ -uword -hicn_data_push_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - - u32 n_left_from, *from, *to_next, n_left_to_next; - hicn_data_push_next_t next_index; - hicn_data_push_runtime_t *rt; - vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; - f64 tnow; - u32 *to_forward = NULL, *header = NULL, n_to_forward = 0; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = (hicn_data_push_next_t) node->cached_next_index; - rt = vlib_node_get_runtime_data (vm, hicn_data_push_node.index); - rt->pitcs = &hicn_main.pitcs; - - vec_alloc (to_forward, n_left_from); - header = to_forward; - /* Capture time in vpp terms */ - tnow = vlib_time_now (vm); - - while (n_left_from > 0) - { - u8 isv6; - u8 *nameptr; - u16 namelen; - hicn_name_t name; - hicn_header_t *hicn0; - vlib_buffer_t *b0; - u32 bi0; - int ret0; - - /* Prefetch for next iteration. */ - if (n_left_from > 1) - { - vlib_buffer_t *b1; - //hicn_buffer_t * hicnb1; - b1 = vlib_get_buffer (vm, from[1]); - CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); - } - /* Dequeue a packet buffer */ - bi0 = from[0]; - from += 1; - n_left_from -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - ret0 = hicn_data_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); - nameptr = (u8 *) (&name); - - if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE)) - { - hicn_new_data (vm, rt, b0, &to_forward, &n_to_forward, tnow, - nameptr, namelen, isv6); - stats.pkts_data_count++; - } - - /* Maybe trace */ - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - hicn_data_push_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = HICN_PKT_TYPE_CONTENT; - t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - t->next_index = HICN_DATA_PUSH_NEXT_ERROR_DROP; - } - } - - to_forward -= n_to_forward; - next_index = HICN_DATA_PUSH_NEXT_FWD; - - while (n_to_forward > 0) - { - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - while (n_to_forward > 0 && n_left_to_next > 0) - { - to_next[0] = to_forward[0]; - to_forward++; - n_to_forward--; - to_next++; - n_left_to_next--; - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - vec_free (header); - - vlib_node_increment_counter (vm, hicn_data_push_node.index, - HICNFWD_ERROR_CACHED, stats.pkts_data_count); - - return (frame->n_vectors); -} - -/* packet trace format function */ -always_inline u8 * -hicn_data_push_format_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - hicn_data_push_trace_t *t = va_arg (*args, hicn_data_push_trace_t *); - - s = format (s, "DATA-STORE: pkt: %d, sw_if_index %d, next index %d\n", - (int) t->pkt_type, t->sw_if_index, t->next_index); - - return (s); -} - - -/* - * Node registration for the data forwarder node - */ -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE(hicn_data_push_node) = -{ - .function = hicn_data_push_fn, - .name = "hicn-data-push", - .vector_size = sizeof(u32), - .runtime_data_bytes = sizeof(hicn_data_push_runtime_t), - .format_trace = hicn_data_push_format_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(hicn_data_push_error_strings), - .error_strings = hicn_data_push_error_strings, - .n_next_nodes = HICN_DATA_PUSH_N_NEXT, - .next_nodes = { - [HICN_DATA_PUSH_NEXT_FWD] = "hicn-data-fwd", - [HICN_DATA_PUSH_NEXT_ERROR_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: eval: (c-set-style "gnu") End: - */ |