csit - Integration tests

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2018-07-11	Add .gitattributes to make endlines automatic	Vratko Polak	1	-0/+16
	Change-Id: I9d58a5b0623c1b9d218e805fa619b324765f97a5 Signed-off-by: Vratko Polak <vrpolak@cisco.com>

/* * 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 <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */ #include <vnet/classify/vnet_classify.h> #include <vnet/dpo/classify_dpo.h> typedef struct { u32 next_index; u32 table_index; u32 entry_index; } ip_classify_trace_t; /* packet trace format function */ static u8 * format_ip_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 *); ip_classify_trace_t *t = va_arg (*args, ip_classify_trace_t *); s = format (s, "IP_CLASSIFY: next_index %d, table %d, entry %d", t->next_index, t->table_index, t->entry_index); return s; } vlib_node_registration_t ip4_classify_node; vlib_node_registration_t ip6_classify_node; #define foreach_ip_classify_error \ _(MISS, "Classify misses") \ _(HIT, "Classify hits") \ _(CHAIN_HIT, "Classify hits after chain walk") typedef enum { #define _(sym,str) IP_CLASSIFY_ERROR_##sym, foreach_ip_classify_error #undef _ IP_CLASSIFY_N_ERROR, } ip_classify_error_t; static char *ip_classify_error_strings[] = { #define _(sym,string) string, foreach_ip_classify_error #undef _ }; static inline uword ip_classify_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip4) { u32 n_left_from, *from, *to_next; ip_lookup_next_t next_index; vnet_classify_main_t *vcm = &vnet_classify_main; f64 now = vlib_time_now (vm); u32 hits = 0; u32 misses = 0; u32 chain_hits = 0; u32 n_next; if (is_ip4) { n_next = IP4_LOOKUP_N_NEXT; } else { n_next = IP6_LOOKUP_N_NEXT; } 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 cd_index0, cd_index1; classify_dpo_t *cd0, *cd1; 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 = (void *) vlib_buffer_get_current (b0) - ethernet_buffer_header_size (b0); bi1 = from[1]; b1 = vlib_get_buffer (vm, bi1); h1 = (void *) vlib_buffer_get_current (b1) - ethernet_buffer_header_size (b1); cd_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; cd0 = classify_dpo_get (cd_index0); table_index0 = cd0->cd_table_index; cd_index1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX]; cd1 = classify_dpo_get (cd_index1); table_index1 = cd1->cd_table_index; 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 cd_index0; classify_dpo_t *cd0; u32 table_index0; vnet_classify_table_t *t0; bi0 = from[0]; b0 = vlib_get_buffer (vm, bi0); h0 = (void *) vlib_buffer_get_current (b0) - ethernet_buffer_header_size (b0); cd_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; cd0 = classify_dpo_get (cd_index0); table_index0 = cd0->cd_table_index; 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 = IP_LOOKUP_NEXT_DROP; u32 table_index0; vnet_classify_table_t *t0; vnet_classify_entry_t *e0; u64 hash0; u8 *h0; /* 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; 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) { vnet_buffer (b0)->l2_classify.opaque_index = e0->opaque_index; vlib_buffer_advance (b0, e0->advance); next0 = (e0->next_index < node->n_next_nodes) ? e0->next_index : next0; hits++; } else { while (1) { if (t0->next_table_index != ~0) t0 = pool_elt_at_index (vcm->tables, t0->next_table_index); else { next0 = (t0->miss_next_index < n_next) ? 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) { vnet_buffer (b0)->l2_classify.opaque_index = e0->opaque_index; vlib_buffer_advance (b0, e0->advance); next0 = (e0->next_index < node->n_next_nodes) ? e0->next_index : next0; hits++; chain_hits++; break; } } } } if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { ip_classify_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); t->next_index = next0; t->table_index = t0 ? t0 - vcm->tables : ~0; t->entry_index = e0 ? e0 - t0->entries : ~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, IP_CLASSIFY_ERROR_MISS, misses); vlib_node_increment_counter (vm, node->node_index, IP_CLASSIFY_ERROR_HIT, hits); vlib_node_increment_counter (vm, node->node_index, IP_CLASSIFY_ERROR_CHAIN_HIT, chain_hits); return frame->n_vectors; } static uword ip4_classify (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip_classify_inline (vm, node, frame, 1 /* is_ip4 */ ); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_classify_node) = { .function = ip4_classify, .name = "ip4-classify", .vector_size = sizeof (u32), .sibling_of = "ip4-lookup", .format_trace = format_ip_classify_trace, .n_errors = ARRAY_LEN(ip_classify_error_strings), .error_strings = ip_classify_error_strings, .n_next_nodes = 0, }; /* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip4_classify_node, ip4_classify) static uword ip6_classify (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip_classify_inline (vm, node, frame, 0 /* is_ip4 */ ); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_classify_node) = { .function = ip6_classify, .name = "ip6-classify", .vector_size = sizeof (u32), .sibling_of = "ip6-lookup", .format_trace = format_ip_classify_trace, .n_errors = ARRAY_LEN(ip_classify_error_strings), .error_strings = ip_classify_error_strings, .n_next_nodes = 0, }; /* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_classify_node, ip6_classify) static clib_error_t *ip_classify_init (vlib_main_t * vm) { return 0; } VLIB_INIT_FUNCTION (ip_classify_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */