fib: Expressive type for walk return code. Honour code. - vpp

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author	Neale Ranns <neale.ranns@cisco.com>	2020-11-26 09:34:39 +0000
committer	Beno�t Ganne <bganne@cisco.com>	2020-11-26 13:18:29 +0000
commit	fdf6b6f52460890305f231c041e060fbb232550b (patch)
tree	07f5301bd4b7ce912a38f1b79fded3a1fdf5b804 /src/vnet/mpls/mpls_output.c
parent	ab4fbedf27ece4ea623d7c3b54cc54f0133ba1f7 (diff)

fib: Expressive type for walk return code. Honour code.

Type: improvement Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Change-Id: I487e698555545fce85d02d55deaaf7bb0007e388

Diffstat (limited to 'src/vnet/mpls/mpls_output.c')

0 files changed, 0 insertions, 0 deletions

/* * 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 <vnet/udp/udp_encap.h> #include <vnet/udp/udp.h> typedef struct udp4_encap_trace_t_ { udp_header_t udp; ip4_header_t ip; } udp4_encap_trace_t; typedef struct udp6_encap_trace_t_ { udp_header_t udp; ip6_header_t ip; } udp6_encap_trace_t; extern vlib_combined_counter_main_t udp_encap_counters; static u8 * format_udp4_encap_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 *); udp4_encap_trace_t *t; t = va_arg (*args, udp4_encap_trace_t *); s = format (s, "%U\n %U", format_ip4_header, &t->ip, sizeof (t->ip), format_udp_header, &t->udp, sizeof (t->udp)); return (s); } static u8 * format_udp6_encap_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 *); udp6_encap_trace_t *t; t = va_arg (*args, udp6_encap_trace_t *); s = format (s, "%U\n %U", format_ip6_header, &t->ip, sizeof (t->ip), format_udp_header, &t->udp, sizeof (t->udp)); return (s); } always_inline uword udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, ip_address_family_t encap_family, ip_address_family_t payload_family) { vlib_combined_counter_main_t *cm = &udp_encap_counters; u32 *from = vlib_frame_vector_args (frame); u32 n_left_from, n_left_to_next, *to_next, next_index; u32 thread_index = vm->thread_index; n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { vlib_buffer_t *b0, *b1; udp_encap_t *ue0, *ue1; u32 bi0, next0, uei0; u32 bi1, next1, uei1; /* Prefetch next iteration. */ { vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); vlib_prefetch_buffer_header (p2, STORE); vlib_prefetch_buffer_header (p3, STORE); } bi0 = to_next[0] = from[0]; bi1 = to_next[1] = from[1]; from += 2; n_left_from -= 2; to_next += 2; n_left_to_next -= 2; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); uei0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; uei1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX]; vlib_increment_combined_counter (cm, thread_index, uei0, 1, vlib_buffer_length_in_chain (vm, b0)); vlib_increment_combined_counter (cm, thread_index, uei1, 1, vlib_buffer_length_in_chain (vm, b1)); /* Rewrite packet header and updates lengths. */ ue0 = udp_encap_get (uei0); ue1 = udp_encap_get (uei1); /* Paint */ if (encap_family == AF_IP6) { const u8 n_bytes = sizeof (udp_header_t) + sizeof (ip6_header_t); ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs, (u8 *) &ue1->ue_hdrs, n_bytes, encap_family, payload_family); if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { udp6_encap_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->udp = ue0->ue_hdrs.ip6.ue_udp; tr->ip = ue0->ue_hdrs.ip6.ue_ip6; } if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) { udp6_encap_trace_t *tr = vlib_add_trace (vm, node, b1, sizeof (*tr)); tr->udp = ue1->ue_hdrs.ip6.ue_udp; tr->ip = ue1->ue_hdrs.ip6.ue_ip6; } } else { const u8 n_bytes = sizeof (udp_header_t) + sizeof (ip4_header_t); ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs, (u8 *) &ue1->ue_hdrs, n_bytes, encap_family, payload_family); if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { udp4_encap_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->udp = ue0->ue_hdrs.ip4.ue_udp; tr->ip = ue0->ue_hdrs.ip4.ue_ip4; } if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) { udp4_encap_trace_t *tr = vlib_add_trace (vm, node, b1, sizeof (*tr)); tr->udp = ue1->ue_hdrs.ip4.ue_udp; tr->ip = ue1->ue_hdrs.ip4.ue_ip4; } } next0 = ue0->ue_dpo.dpoi_next_node; next1 = ue1->ue_dpo.dpoi_next_node; vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ue0->ue_dpo.dpoi_index; vnet_buffer (b1)->ip.adj_index[VLIB_TX] = ue1->ue_dpo.dpoi_index; 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, next0, uei0; vlib_buffer_t *b0; udp_encap_t *ue0; bi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); uei0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; /* Rewrite packet header and updates lengths. */ ue0 = udp_encap_get (uei0); vlib_increment_combined_counter (cm, thread_index, uei0, 1, vlib_buffer_length_in_chain (vm, b0)); /* Paint */ if (encap_family == AF_IP6) { const u8 n_bytes = sizeof (udp_header_t) + sizeof (ip6_header_t); ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip6, n_bytes, encap_family, payload_family); if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { udp6_encap_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->udp = ue0->ue_hdrs.ip6.ue_udp; tr->ip = ue0->ue_hdrs.ip6.ue_ip6; } } else { const u8 n_bytes = sizeof (udp_header_t) + sizeof (ip4_header_t); ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip4, n_bytes, encap_family, payload_family); if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { udp4_encap_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->udp = ue0->ue_hdrs.ip4.ue_udp; tr->ip = ue0->ue_hdrs.ip4.ue_ip4; } } next0 = ue0->ue_dpo.dpoi_next_node; vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ue0->ue_dpo.dpoi_index; 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); } return frame->n_vectors; } VLIB_NODE_FN (udp4o4_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP4, AF_IP4); } VLIB_NODE_FN (udp6o4_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP4, AF_IP6); } VLIB_NODE_FN (udp4_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP4, N_AF); } VLIB_NODE_FN (udp6o6_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP6, AF_IP6); } VLIB_NODE_FN (udp4o6_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP6, AF_IP4); } VLIB_NODE_FN (udp6_encap_node) (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { return udp_encap_inline (vm, node, frame, AF_IP6, N_AF); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (udp4o4_encap_node) = { .name = "udp4o4-encap", .vector_size = sizeof (u32), .format_trace = format_udp4_encap_trace, .n_next_nodes = 0, }; VLIB_REGISTER_NODE (udp6o4_encap_node) = { .name = "udp6o4-encap", .vector_size = sizeof (u32), .format_trace = format_udp6_encap_trace, .n_next_nodes = 0, .sibling_of = "udp4o4-encap", }; VLIB_REGISTER_NODE (udp4_encap_node) = { .name = "udp4-encap", .vector_size = sizeof (u32), .format_trace = format_udp4_encap_trace, .n_next_nodes = 0, .sibling_of = "udp4o4-encap", }; VLIB_REGISTER_NODE (udp6o6_encap_node) = { .name = "udp6o6-encap", .vector_size = sizeof (u32), .format_trace = format_udp6_encap_trace, .n_next_nodes = 0, }; VLIB_REGISTER_NODE (udp4o6_encap_node) = { .name = "udp4o6-encap", .vector_size = sizeof (u32), .format_trace = format_udp4_encap_trace, .n_next_nodes = 0, .sibling_of = "udp6o6-encap", }; VLIB_REGISTER_NODE (udp6_encap_node) = { .name = "udp6-encap", .vector_size = sizeof (u32), .format_trace = format_udp6_encap_trace, .n_next_nodes = 0, .sibling_of = "udp6o6-encap", }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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