diff options
Diffstat (limited to 'vnet/vnet/policer/node_funcs.c')
| -rw-r--r-- | vnet/vnet/policer/node_funcs.c | 938 |
1 files changed, 0 insertions, 938 deletions
diff --git a/vnet/vnet/policer/node_funcs.c b/vnet/vnet/policer/node_funcs.c deleted file mode 100644 index 1f4997ff669..00000000000 --- a/vnet/vnet/policer/node_funcs.c +++ /dev/null @@ -1,938 +0,0 @@ -/* - * Copyright (c) 2015 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 <stdint.h> - -#include <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vnet/policer/policer.h> -#include <vnet/ip/ip.h> -#include <vnet/classify/policer_classify.h> -#include <vnet/classify/vnet_classify.h> - -#define IP4_NON_DSCP_BITS 0x03 -#define IP4_DSCP_SHIFT 2 -#define IP6_NON_DSCP_BITS 0xf03fffff -#define IP6_DSCP_SHIFT 22 - -/* Dispatch functions meant to be instantiated elsewhere */ - -typedef struct -{ - u32 next_index; - u32 sw_if_index; - u32 policer_index; -} vnet_policer_trace_t; - -/* packet trace format function */ -static u8 * -format_policer_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 *); - vnet_policer_trace_t *t = va_arg (*args, vnet_policer_trace_t *); - - s = format (s, "VNET_POLICER: sw_if_index %d policer_index %d next %d", - t->sw_if_index, t->policer_index, t->next_index); - return s; -} - -#define foreach_vnet_policer_error \ -_(TRANSMIT, "Packets Transmitted") \ -_(DROP, "Packets Dropped") - -typedef enum -{ -#define _(sym,str) VNET_POLICER_ERROR_##sym, - foreach_vnet_policer_error -#undef _ - VNET_POLICER_N_ERROR, -} vnet_policer_error_t; - -static char *vnet_policer_error_strings[] = { -#define _(sym,string) string, - foreach_vnet_policer_error -#undef _ -}; - -static_always_inline void -vnet_policer_mark (vlib_buffer_t * b, u8 dscp) -{ - ethernet_header_t *eh; - ip4_header_t *ip4h; - ip6_header_t *ip6h; - u16 type; - - eh = (ethernet_header_t *) b->data; - type = clib_net_to_host_u16 (eh->type); - - if (PREDICT_TRUE (type == ETHERNET_TYPE_IP4)) - { - ip4h = (ip4_header_t *) & (b->data[sizeof (ethernet_header_t)]);; - ip4h->tos &= IP4_NON_DSCP_BITS; - ip4h->tos |= dscp << IP4_DSCP_SHIFT; - ip4h->checksum = ip4_header_checksum (ip4h); - } - else - { - if (PREDICT_TRUE (type == ETHERNET_TYPE_IP6)) - { - ip6h = (ip6_header_t *) & (b->data[sizeof (ethernet_header_t)]); - ip6h->ip_version_traffic_class_and_flow_label &= - clib_host_to_net_u32 (IP6_NON_DSCP_BITS); - ip6h->ip_version_traffic_class_and_flow_label |= - clib_host_to_net_u32 (dscp << IP6_DSCP_SHIFT); - } - } -} - -static_always_inline - u8 vnet_policer_police (vlib_main_t * vm, - vlib_buffer_t * b, - u32 policer_index, - u64 time_in_policer_periods, - policer_result_e packet_color) -{ - u8 act; - u32 len; - u32 col; - policer_read_response_type_st *pol; - vnet_policer_main_t *pm = &vnet_policer_main; - - len = vlib_buffer_length_in_chain (vm, b); - pol = &pm->policers[policer_index]; - col = vnet_police_packet (pol, len, packet_color, time_in_policer_periods); - act = pol->action[col]; - if (PREDICT_TRUE (act == SSE2_QOS_ACTION_MARK_AND_TRANSMIT)) - vnet_policer_mark (b, pol->mark_dscp[col]); - - return act; -} - -static inline uword -vnet_policer_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, vnet_policer_index_t which) -{ - u32 n_left_from, *from, *to_next; - vnet_policer_next_t next_index; - vnet_policer_main_t *pm = &vnet_policer_main; - u64 time_in_policer_periods; - u32 transmitted = 0; - - time_in_policer_periods = - clib_cpu_time_now () >> POLICER_TICKS_PER_PERIOD_SHIFT; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from >= 4 && n_left_to_next >= 2) - { - u32 bi0, bi1; - vlib_buffer_t *b0, *b1; - u32 next0, next1; - u32 sw_if_index0, sw_if_index1; - u32 pi0 = 0, pi1 = 0; - u8 act0, act1; - - /* Prefetch next iteration. */ - { - vlib_buffer_t *b2, *b3; - - b2 = vlib_get_buffer (vm, from[2]); - b3 = vlib_get_buffer (vm, from[3]); - - vlib_prefetch_buffer_header (b2, LOAD); - vlib_prefetch_buffer_header (b3, LOAD); - } - - /* speculatively enqueue b0 and b1 to the current next frame */ - to_next[0] = bi0 = from[0]; - to_next[1] = bi1 = from[1]; - from += 2; - to_next += 2; - n_left_from -= 2; - n_left_to_next -= 2; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - next0 = VNET_POLICER_NEXT_TRANSMIT; - - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - next1 = VNET_POLICER_NEXT_TRANSMIT; - - - if (which == VNET_POLICER_INDEX_BY_SW_IF_INDEX) - { - pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; - pi1 = pm->policer_index_by_sw_if_index[sw_if_index1]; - } - - if (which == VNET_POLICER_INDEX_BY_OPAQUE) - { - pi0 = vnet_buffer (b0)->policer.index; - pi1 = vnet_buffer (b1)->policer.index; - } - - if (which == VNET_POLICER_INDEX_BY_EITHER) - { - pi0 = vnet_buffer (b0)->policer.index; - pi0 = (pi0 != ~0) ? pi0 : - pm->policer_index_by_sw_if_index[sw_if_index0]; - pi1 = vnet_buffer (b1)->policer.index; - pi1 = (pi1 != ~0) ? pi1 : - pm->policer_index_by_sw_if_index[sw_if_index1]; - } - - act0 = vnet_policer_police (vm, b0, pi0, time_in_policer_periods, - POLICE_CONFORM /* no chaining */ ); - - act1 = vnet_policer_police (vm, b1, pi1, time_in_policer_periods, - POLICE_CONFORM /* no chaining */ ); - - if (PREDICT_FALSE (act0 == SSE2_QOS_ACTION_DROP)) /* drop action */ - { - next0 = VNET_POLICER_NEXT_DROP; - b0->error = node->errors[VNET_POLICER_ERROR_DROP]; - } - else /* transmit or mark-and-transmit action */ - { - transmitted++; - } - - if (PREDICT_FALSE (act1 == SSE2_QOS_ACTION_DROP)) /* drop action */ - { - next1 = VNET_POLICER_NEXT_DROP; - b1->error = node->errors[VNET_POLICER_ERROR_DROP]; - } - else /* transmit or mark-and-transmit action */ - { - transmitted++; - } - - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - vnet_policer_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - vnet_policer_trace_t *t = - vlib_add_trace (vm, node, b1, sizeof (*t)); - t->sw_if_index = sw_if_index1; - t->next_index = next1; - } - } - - /* verify speculative enqueues, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, - to_next, n_left_to_next, - bi0, bi1, next0, next1); - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t *b0; - u32 next0; - u32 sw_if_index0; - u32 pi0 = 0; - u8 act0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - next0 = VNET_POLICER_NEXT_TRANSMIT; - - if (which == VNET_POLICER_INDEX_BY_SW_IF_INDEX) - pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; - - if (which == VNET_POLICER_INDEX_BY_OPAQUE) - pi0 = vnet_buffer (b0)->policer.index; - - if (which == VNET_POLICER_INDEX_BY_EITHER) - { - pi0 = vnet_buffer (b0)->policer.index; - pi0 = (pi0 != ~0) ? pi0 : - pm->policer_index_by_sw_if_index[sw_if_index0]; - } - - act0 = vnet_policer_police (vm, b0, pi0, time_in_policer_periods, - POLICE_CONFORM /* no chaining */ ); - - if (PREDICT_FALSE (act0 == SSE2_QOS_ACTION_DROP)) /* drop action */ - { - next0 = VNET_POLICER_NEXT_DROP; - b0->error = node->errors[VNET_POLICER_ERROR_DROP]; - } - else /* transmit or mark-and-transmit action */ - { - transmitted++; - } - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) - && (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - vnet_policer_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = sw_if_index0; - t->next_index = next0; - t->policer_index = pi0; - } - - /* 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); - } - - vlib_node_increment_counter (vm, node->node_index, - VNET_POLICER_ERROR_TRANSMIT, transmitted); - return frame->n_vectors; -} - -uword -vnet_policer_by_sw_if_index (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return vnet_policer_inline (vm, node, frame, - VNET_POLICER_INDEX_BY_SW_IF_INDEX); -} - -uword -vnet_policer_by_opaque (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return vnet_policer_inline (vm, node, frame, VNET_POLICER_INDEX_BY_OPAQUE); -} - -uword -vnet_policer_by_either (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return vnet_policer_inline (vm, node, frame, VNET_POLICER_INDEX_BY_EITHER); -} - -void -vnet_policer_node_funcs_reference (void) -{ -} - - -#define TEST_CODE 1 - -#ifdef TEST_CODE - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (policer_by_sw_if_index_node, static) = { - .function = vnet_policer_by_sw_if_index, - .name = "policer-by-sw-if-index", - .vector_size = sizeof (u32), - .format_trace = format_policer_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(vnet_policer_error_strings), - .error_strings = vnet_policer_error_strings, - - .n_next_nodes = VNET_POLICER_N_NEXT, - - /* edit / add dispositions here */ - .next_nodes = { - [VNET_POLICER_NEXT_TRANSMIT] = "ethernet-input", - [VNET_POLICER_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (policer_by_sw_if_index_node, - vnet_policer_by_sw_if_index); -/* *INDENT-ON* */ - - -int -test_policer_add_del (u32 rx_sw_if_index, u8 * config_name, int is_add) -{ - vnet_policer_main_t *pm = &vnet_policer_main; - policer_read_response_type_st *template; - policer_read_response_type_st *policer; - vnet_hw_interface_t *rxhi; - uword *p; - - rxhi = vnet_get_sup_hw_interface (pm->vnet_main, rx_sw_if_index); - - /* Make sure caller didn't pass a vlan subif, etc. */ - if (rxhi->sw_if_index != rx_sw_if_index) - return VNET_API_ERROR_INVALID_SW_IF_INDEX; - - if (is_add) - { - - p = hash_get_mem (pm->policer_config_by_name, config_name); - - if (p == 0) - return -2; - - template = pool_elt_at_index (pm->policer_templates, p[0]); - - vnet_hw_interface_rx_redirect_to_node - (pm->vnet_main, rxhi->hw_if_index, policer_by_sw_if_index_node.index); - - pool_get_aligned (pm->policers, policer, CLIB_CACHE_LINE_BYTES); - - policer[0] = template[0]; - - vec_validate (pm->policer_index_by_sw_if_index, rx_sw_if_index); - pm->policer_index_by_sw_if_index[rx_sw_if_index] - = policer - pm->policers; - } - else - { - u32 pi; - vnet_hw_interface_rx_redirect_to_node (pm->vnet_main, - rxhi->hw_if_index, - ~0 /* disable */ ); - - pi = pm->policer_index_by_sw_if_index[rx_sw_if_index]; - pm->policer_index_by_sw_if_index[rx_sw_if_index] = ~0; - pool_put_index (pm->policers, pi); - } - - return 0; -} - -static clib_error_t * -test_policer_command_fn (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - vnet_policer_main_t *pm = &vnet_policer_main; - unformat_input_t _line_input, *line_input = &_line_input; - u32 rx_sw_if_index; - int rv; - u8 *config_name = 0; - int rx_set = 0; - int is_add = 1; - int is_show = 0; - - /* Get a line of input. */ - if (!unformat_user (input, unformat_line_input, line_input)) - return 0; - - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "intfc %U", unformat_vnet_sw_interface, - pm->vnet_main, &rx_sw_if_index)) - rx_set = 1; - else if (unformat (line_input, "show")) - is_show = 1; - else if (unformat (line_input, "policer %s", &config_name)) - ; - else if (unformat (line_input, "del")) - is_add = 0; - else - break; - } - - if (rx_set == 0) - return clib_error_return (0, "interface not set"); - - if (is_show) - { - u32 pi = pm->policer_index_by_sw_if_index[rx_sw_if_index]; - policer_read_response_type_st *policer; - policer = pool_elt_at_index (pm->policers, pi); - - vlib_cli_output (vm, "%U", format_policer_instance, policer); - return 0; - } - - if (is_add && config_name == 0) - { - return clib_error_return (0, "policer config name required"); - } - - rv = test_policer_add_del (rx_sw_if_index, config_name, is_add); - - switch (rv) - { - case 0: - break; - - default: - return clib_error_return - (0, "WARNING: vnet_vnet_policer_add_del returned %d", rv); - } - - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (test_patch_command, static) = { - .path = "test policer", - .short_help = - "intfc <intfc> policer <policer-config-name> [del]", - .function = test_policer_command_fn, -}; -/* *INDENT-ON* */ - -#endif /* TEST_CODE */ - - -typedef struct -{ - u32 sw_if_index; - u32 next_index; - u32 table_index; - u32 offset; - u32 policer_index; -} policer_classify_trace_t; - -static u8 * -format_policer_classify_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 *); - policer_classify_trace_t *t = va_arg (*args, policer_classify_trace_t *); - - s = format (s, "POLICER_CLASSIFY: sw_if_index %d next %d table %d offset %d" - " policer_index %d", - t->sw_if_index, t->next_index, t->table_index, t->offset, - t->policer_index); - return s; -} - -#define foreach_policer_classify_error \ -_(MISS, "Policer classify misses") \ -_(HIT, "Policer classify hits") \ -_(CHAIN_HIT, "Polcier classify hits after chain walk") \ -_(DROP, "Policer classify action drop") - -typedef enum -{ -#define _(sym,str) POLICER_CLASSIFY_ERROR_##sym, - foreach_policer_classify_error -#undef _ - POLICER_CLASSIFY_N_ERROR, -} policer_classify_error_t; - -static char *policer_classify_error_strings[] = { -#define _(sym,string) string, - foreach_policer_classify_error -#undef _ -}; - -static inline uword -policer_classify_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - policer_classify_table_id_t tid) -{ - u32 n_left_from, *from, *to_next; - policer_classify_next_index_t next_index; - policer_classify_main_t *pcm = &policer_classify_main; - vnet_classify_main_t *vcm = pcm->vnet_classify_main; - f64 now = vlib_time_now (vm); - u32 hits = 0; - u32 misses = 0; - u32 chain_hits = 0; - u32 drop = 0; - u32 n_next_nodes; - u64 time_in_policer_periods; - - time_in_policer_periods = - clib_cpu_time_now () >> POLICER_TICKS_PER_PERIOD_SHIFT; - - n_next_nodes = node->n_next_nodes; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - - /* First pass: compute hashes */ - while (n_left_from > 2) - { - vlib_buffer_t *b0, *b1; - u32 bi0, bi1; - u8 *h0, *h1; - u32 sw_if_index0, sw_if_index1; - u32 table_index0, table_index1; - vnet_classify_table_t *t0, *t1; - - /* Prefetch next iteration */ - { - vlib_buffer_t *p1, *p2; - - p1 = vlib_get_buffer (vm, from[1]); - p2 = vlib_get_buffer (vm, from[2]); - - vlib_prefetch_buffer_header (p1, STORE); - CLIB_PREFETCH (p1->data, CLIB_CACHE_LINE_BYTES, STORE); - vlib_prefetch_buffer_header (p2, STORE); - CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE); - } - - bi0 = from[0]; - b0 = vlib_get_buffer (vm, bi0); - h0 = b0->data; - - bi1 = from[1]; - b1 = vlib_get_buffer (vm, bi1); - h1 = b1->data; - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - table_index0 = - pcm->classify_table_index_by_sw_if_index[tid][sw_if_index0]; - - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - table_index1 = - pcm->classify_table_index_by_sw_if_index[tid][sw_if_index1]; - - t0 = pool_elt_at_index (vcm->tables, table_index0); - - t1 = pool_elt_at_index (vcm->tables, table_index1); - - vnet_buffer (b0)->l2_classify.hash = - vnet_classify_hash_packet (t0, (u8 *) h0); - - vnet_classify_prefetch_bucket (t0, vnet_buffer (b0)->l2_classify.hash); - - vnet_buffer (b1)->l2_classify.hash = - vnet_classify_hash_packet (t1, (u8 *) h1); - - vnet_classify_prefetch_bucket (t1, vnet_buffer (b1)->l2_classify.hash); - - vnet_buffer (b0)->l2_classify.table_index = table_index0; - - vnet_buffer (b1)->l2_classify.table_index = table_index1; - - from += 2; - n_left_from -= 2; - } - - while (n_left_from > 0) - { - vlib_buffer_t *b0; - u32 bi0; - u8 *h0; - u32 sw_if_index0; - u32 table_index0; - vnet_classify_table_t *t0; - - bi0 = from[0]; - b0 = vlib_get_buffer (vm, bi0); - h0 = b0->data; - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - table_index0 = - pcm->classify_table_index_by_sw_if_index[tid][sw_if_index0]; - - t0 = pool_elt_at_index (vcm->tables, table_index0); - vnet_buffer (b0)->l2_classify.hash = - vnet_classify_hash_packet (t0, (u8 *) h0); - - vnet_buffer (b0)->l2_classify.table_index = table_index0; - vnet_classify_prefetch_bucket (t0, vnet_buffer (b0)->l2_classify.hash); - - from++; - n_left_from--; - } - - next_index = node->cached_next_index; - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - /* Not enough load/store slots to dual loop... */ - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t *b0; - u32 next0 = POLICER_CLASSIFY_NEXT_INDEX_DROP; - u32 table_index0; - vnet_classify_table_t *t0; - vnet_classify_entry_t *e0; - u64 hash0; - u8 *h0; - u8 act0; - - /* Stride 3 seems to work best */ - if (PREDICT_TRUE (n_left_from > 3)) - { - vlib_buffer_t *p1 = vlib_get_buffer (vm, from[3]); - vnet_classify_table_t *tp1; - u32 table_index1; - u64 phash1; - - table_index1 = vnet_buffer (p1)->l2_classify.table_index; - - if (PREDICT_TRUE (table_index1 != ~0)) - { - tp1 = pool_elt_at_index (vcm->tables, table_index1); - phash1 = vnet_buffer (p1)->l2_classify.hash; - vnet_classify_prefetch_entry (tp1, phash1); - } - } - - /* Speculatively enqueue b0 to the current next frame */ - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - h0 = b0->data; - table_index0 = vnet_buffer (b0)->l2_classify.table_index; - e0 = 0; - t0 = 0; - - if (tid == POLICER_CLASSIFY_TABLE_L2) - { - /* Feature bitmap update */ - vnet_buffer (b0)->l2.feature_bitmap &= - ~L2INPUT_FEAT_POLICER_CLAS; - /* Determine the next node */ - next0 = - feat_bitmap_get_next_node_index (pcm->feat_next_node_index, - vnet_buffer (b0)-> - l2.feature_bitmap); - } - else - vnet_get_config_data (pcm->vnet_config_main[tid], - &b0->current_config_index, &next0, - /* # bytes of config data */ 0); - - vnet_buffer (b0)->l2_classify.opaque_index = ~0; - - if (PREDICT_TRUE (table_index0 != ~0)) - { - hash0 = vnet_buffer (b0)->l2_classify.hash; - t0 = pool_elt_at_index (vcm->tables, table_index0); - e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now); - - if (e0) - { - act0 = vnet_policer_police (vm, - b0, - e0->next_index, - time_in_policer_periods, - e0->opaque_index); - if (PREDICT_FALSE (act0 == SSE2_QOS_ACTION_DROP)) - { - next0 = POLICER_CLASSIFY_NEXT_INDEX_DROP; - b0->error = node->errors[POLICER_CLASSIFY_ERROR_DROP]; - drop++; - } - hits++; - } - else - { - while (1) - { - if (PREDICT_TRUE (t0->next_table_index != ~0)) - { - t0 = pool_elt_at_index (vcm->tables, - t0->next_table_index); - } - else - { - next0 = (t0->miss_next_index < n_next_nodes) ? - t0->miss_next_index : next0; - misses++; - break; - } - - hash0 = vnet_classify_hash_packet (t0, (u8 *) h0); - e0 = - vnet_classify_find_entry (t0, (u8 *) h0, hash0, now); - if (e0) - { - act0 = vnet_policer_police (vm, - b0, - e0->next_index, - time_in_policer_periods, - e0->opaque_index); - if (PREDICT_FALSE (act0 == SSE2_QOS_ACTION_DROP)) - { - next0 = POLICER_CLASSIFY_NEXT_INDEX_DROP; - b0->error = - node->errors[POLICER_CLASSIFY_ERROR_DROP]; - drop++; - } - hits++; - chain_hits++; - break; - } - } - } - } - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) - && (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - policer_classify_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - t->next_index = next0; - t->table_index = t0 ? t0 - vcm->tables : ~0; - t->offset = (e0 && t0) ? vnet_classify_get_offset (t0, e0) : ~0; - t->policer_index = e0 ? e0->next_index : ~0; - } - - /* 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); - } - - vlib_node_increment_counter (vm, node->node_index, - POLICER_CLASSIFY_ERROR_MISS, misses); - vlib_node_increment_counter (vm, node->node_index, - POLICER_CLASSIFY_ERROR_HIT, hits); - vlib_node_increment_counter (vm, node->node_index, - POLICER_CLASSIFY_ERROR_CHAIN_HIT, chain_hits); - vlib_node_increment_counter (vm, node->node_index, - POLICER_CLASSIFY_ERROR_DROP, drop); - - return frame->n_vectors; -} - -static uword -ip4_policer_classify (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return policer_classify_inline (vm, node, frame, - POLICER_CLASSIFY_TABLE_IP4); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_policer_classify_node) = { - .function = ip4_policer_classify, - .name = "ip4-policer-classify", - .vector_size = sizeof (u32), - .format_trace = format_policer_classify_trace, - .n_errors = ARRAY_LEN(policer_classify_error_strings), - .error_strings = policer_classify_error_strings, - .n_next_nodes = POLICER_CLASSIFY_NEXT_INDEX_N_NEXT, - .next_nodes = { - [POLICER_CLASSIFY_NEXT_INDEX_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ip4_policer_classify_node, ip4_policer_classify); -/* *INDENT-ON* */ - -static uword -ip6_policer_classify (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return policer_classify_inline (vm, node, frame, - POLICER_CLASSIFY_TABLE_IP6); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip6_policer_classify_node) = { - .function = ip6_policer_classify, - .name = "ip6-policer-classify", - .vector_size = sizeof (u32), - .format_trace = format_policer_classify_trace, - .n_errors = ARRAY_LEN(policer_classify_error_strings), - .error_strings = policer_classify_error_strings, - .n_next_nodes = POLICER_CLASSIFY_NEXT_INDEX_N_NEXT, - .next_nodes = { - [POLICER_CLASSIFY_NEXT_INDEX_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ip6_policer_classify_node, ip6_policer_classify); -/* *INDENT-ON* */ - -static uword -l2_policer_classify (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return policer_classify_inline (vm, node, frame, POLICER_CLASSIFY_TABLE_L2); -} - -VLIB_REGISTER_NODE (l2_policer_classify_node) = -{ - .function = l2_policer_classify,.name = "l2-policer-classify",.vector_size = - sizeof (u32),.format_trace = format_policer_classify_trace,.n_errors = - ARRAY_LEN (policer_classify_error_strings),.error_strings = - policer_classify_error_strings,.n_next_nodes = - POLICER_CLASSIFY_NEXT_INDEX_N_NEXT,.next_nodes = - { - [POLICER_CLASSIFY_NEXT_INDEX_DROP] = "error-drop",} -,}; - -VLIB_NODE_FUNCTION_MULTIARCH (l2_policer_classify_node, l2_policer_classify); - - -static clib_error_t * -policer_classify_init (vlib_main_t * vm) -{ - policer_classify_main_t *pcm = &policer_classify_main; - - pcm->vlib_main = vm; - pcm->vnet_main = vnet_get_main (); - pcm->vnet_classify_main = &vnet_classify_main; - - /* Initialize L2 feature next-node indexes */ - feat_bitmap_init_next_nodes (vm, - l2_policer_classify_node.index, - L2INPUT_N_FEAT, - l2input_get_feat_names (), - pcm->feat_next_node_index); - - return 0; -} - -VLIB_INIT_FUNCTION (policer_classify_init); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |