diff options
Diffstat (limited to 'hicn-plugin/src/interest_hitcs_node.c')
| -rw-r--r-- | hicn-plugin/src/interest_hitcs_node.c | 121 |
1 files changed, 48 insertions, 73 deletions
diff --git a/hicn-plugin/src/interest_hitcs_node.c b/hicn-plugin/src/interest_hitcs_node.c index e29b173a9..651b2796a 100644 --- a/hicn-plugin/src/interest_hitcs_node.c +++ b/hicn-plugin/src/interest_hitcs_node.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2021 Cisco and/or its affiliates. + * Copyright (c) 2021 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: @@ -36,13 +36,14 @@ static char *hicn_interest_hitcs_error_strings[] = { vlib_node_registration_t hicn_interest_hitcs_node; -always_inline void drop_packet (u32 *next0); +// always_inline void drop_packet (u32 *next0); -always_inline void -clone_from_cs (vlib_main_t *vm, u32 *bi0_cs, vlib_buffer_t *dest, u8 isv6) +always_inline u32 +clone_from_cs (vlib_main_t *vm, u32 bi0_cs, vlib_buffer_t *dest, u8 isv6) { /* Retrieve the buffer to clone */ - vlib_buffer_t *cs_buf = vlib_get_buffer (vm, *bi0_cs); + u32 ret = bi0_cs; + vlib_buffer_t *cs_buf = vlib_get_buffer (vm, bi0_cs); hicn_buffer_t *hicnb = hicn_get_buffer (cs_buf); word buffer_advance = CLIB_CACHE_LINE_BYTES * 2; if (hicnb->flags & HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL) @@ -63,7 +64,7 @@ clone_from_cs (vlib_main_t *vm, u32 *bi0_cs, vlib_buffer_t *dest, u8 isv6) { vlib_buffer_t *cs_buf2 = vlib_buffer_copy (vm, cs_buf); vlib_buffer_advance (cs_buf, buffer_advance); - *bi0_cs = vlib_get_buffer_index (vm, cs_buf2); + ret = vlib_get_buffer_index (vm, cs_buf2); cs_buf->ref_count--; cs_buf = cs_buf2; } @@ -79,6 +80,8 @@ clone_from_cs (vlib_main_t *vm, u32 *bi0_cs, vlib_buffer_t *dest, u8 isv6) /* Set fag for packet coming from CS */ hicn_get_buffer (dest)->flags |= HICN_BUFFER_FLAGS_FROM_CS; + + return ret; } static uword @@ -89,8 +92,17 @@ hicn_interest_hitcs_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, hicn_interest_hitcs_next_t next_index; hicn_interest_hitcs_runtime_t *rt; vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + vlib_buffer_t *b0; + u8 isv6; + u32 bi0, bi_ret; + u32 next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP; + hicn_buffer_t *hicnb0; + u32 pcs_entry_index; + hicn_pcs_entry_t *pcs_entry = NULL; + const hicn_strategy_vft_t *strategy_vft0; + const hicn_dpo_vft_t *dpo_vft0; + u8 dpo_ctx_id0; f64 tnow; - int ret; rt = vlib_node_get_runtime_data (vm, hicn_interest_hitcs_node.index); @@ -110,29 +122,12 @@ hicn_interest_hitcs_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t *b0; - u8 isv6; - u8 *nameptr; - u16 namelen; - u32 bi0; - u32 next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP; - hicn_name_t name; - hicn_header_t *hicn0; - hicn_buffer_t *hicnb0; - hicn_hash_node_t *node0; - hicn_pcs_entry_t *pitp; - hicn_hash_entry_t *hash_entry0; - const hicn_strategy_vft_t *strategy_vft0; - const hicn_dpo_vft_t *dpo_vft0; - u8 dpo_ctx_id0; - /* Prefetch for next iteration. */ if (n_left_from > 1) { vlib_buffer_t *b1; b1 = vlib_get_buffer (vm, from[1]); CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE); - CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE); } /* Dequeue a packet buffer */ @@ -147,86 +142,64 @@ hicn_interest_hitcs_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, /* Get hicn buffer and state */ hicnb0 = hicn_get_buffer (b0); - hicn_get_internal_state (hicnb0, rt->pitcs, &node0, &strategy_vft0, - &dpo_vft0, &dpo_ctx_id0, &hash_entry0); + hicn_get_internal_state (hicnb0, &pcs_entry_index, &strategy_vft0, + &dpo_vft0, &dpo_ctx_id0); + pcs_entry = + hicn_pcs_entry_get_entry_from_index (rt->pitcs, pcs_entry_index); - ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); - nameptr = (u8 *) (&name); - pitp = hicn_pit_get_data (node0); + isv6 = hicn_buffer_is_v6 (b0); - dpo_id_t hicn_dpo_id0 = { .dpoi_type = - dpo_vft0->hicn_dpo_get_type (), - .dpoi_proto = 0, - .dpoi_next_node = 0, - .dpoi_index = dpo_ctx_id0 }; - - if (PREDICT_FALSE (ret != HICN_ERROR_NONE || - !hicn_node_compare (nameptr, namelen, node0))) - { - /* Remove lock from the entry */ - hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0, - dpo_vft0, &hicn_dpo_id0); - drop_packet (&next0); - goto end_processing; - } - if ((tnow > pitp->shared.expire_time)) + if (tnow > hicn_pcs_entry_get_expire_time (pcs_entry)) { - /* Delete and clean up expired CS entry */ - hicn_pcs_delete (rt->pitcs, &pitp, &node0, vm, hash_entry0, - dpo_vft0, &hicn_dpo_id0); + // Delete and clean up expired CS entry + hicn_pcs_entry_remove_lock (rt->pitcs, pcs_entry); + + // Update stats stats.cs_expired_count++; - /* Forward interest to the strategy node */ + + // Forward interest to the strategy node next0 = HICN_INTEREST_HITCS_NEXT_STRATEGY; } else { - if (PREDICT_TRUE ( - !(hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_DELETED))) - hicn_pcs_cs_update (vm, rt->pitcs, pitp, pitp, node0); - - /* - * Retrieve the incoming iface and forward - * the data through it - */ + // Retrieve the incoming iface and forward + // the data through it next0 = isv6 ? HICN_INTEREST_HITCS_NEXT_IFACE6_OUT : - HICN_INTEREST_HITCS_NEXT_IFACE4_OUT; + HICN_INTEREST_HITCS_NEXT_IFACE4_OUT; vnet_buffer (b0)->ip.adj_index[VLIB_TX] = hicnb0->face_id; - clone_from_cs (vm, &pitp->u.cs.cs_pkt_buf, b0, isv6); + bi_ret = clone_from_cs ( + vm, hicn_pcs_entry_cs_get_buffer (pcs_entry), b0, isv6); + + hicn_pcs_entry_cs_set_buffer (pcs_entry, bi_ret); + // Update stats stats.pkts_from_cache_count++; stats.pkts_data_count++; - /* Remove lock from the entry */ - hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0, - dpo_vft0, &hicn_dpo_id0); } - end_processing: - - /* Maybe trace */ + // Maybe trace if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { hicn_interest_hitcs_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = HICN_PKT_TYPE_INTEREST; + t->pkt_type = HICN_PACKET_TYPE_INTEREST; t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; t->next_index = next0; } - /* Incr packet counter */ + + // Increment packet counter stats.pkts_processed += 1; - /* - * Verify speculative enqueue, maybe switch current - * next frame - */ + // Verify speculative enqueue, maybe switch current next frame vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); + u32 pit_int_count = hicn_pcs_get_pit_count (rt->pitcs); vlib_node_increment_counter (vm, hicn_interest_hitcs_node.index, HICNFWD_ERROR_CACHED, @@ -241,11 +214,13 @@ hicn_interest_hitcs_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, return (frame->n_vectors); } +#if 0 always_inline void drop_packet (u32 *next0) { *next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP; } +#endif /* packet trace format function */ static u8 * @@ -285,4 +260,4 @@ VLIB_REGISTER_NODE (hicn_interest_hitcs_node) = { * fd.io coding-style-patch-verification: ON * * Local Variables: eval: (c-set-style "gnu") End: - */ + */
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