Remove unused argument to vlib_feature_next - vpp

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author	Damjan Marion <damarion@cisco.com>	2018-07-19 20:42:08 +0200
committer	Damjan Marion <dmarion@me.com>	2018-07-19 22:31:11 +0000
commit	7d98a12f29d5b9696df98b8af2f128614a4f0360 (patch)
tree	8d78626e0e482e4a004bc6a8fe573a7f0c0defc4 /src/plugins/acl/fa_node.h
parent	3d0fadc01fa92664b8ebc5d8400b6344ee7e92df (diff)

Remove unused argument to vlib_feature_next

Change-Id: Ieb8b53977fc8484c19780941e232ee072b667de3 Signed-off-by: Damjan Marion <damarion@cisco.com>

Diffstat (limited to 'src/plugins/acl/fa_node.h')

0 files changed, 0 insertions, 0 deletions

/* * 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. */ /* * snap_node.c: snap packet processing * * Copyright (c) 2010 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <vlib/vlib.h> #include <vnet/pg/pg.h> #include <vnet/llc/llc.h> #include <vnet/snap/snap.h> typedef enum { SNAP_INPUT_NEXT_DROP, SNAP_INPUT_NEXT_PUNT, SNAP_INPUT_NEXT_ETHERNET_TYPE, SNAP_INPUT_N_NEXT, } snap_input_next_t; typedef struct { u8 packet_data[32]; } snap_input_trace_t; static u8 * format_snap_input_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); snap_input_trace_t *t = va_arg (*va, snap_input_trace_t *); s = format (s, "%U", format_snap_header, t->packet_data); return s; } static uword snap_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { snap_main_t *sm = &snap_main; u32 n_left_from, next_index, *from, *to_next; from = vlib_frame_vector_args (from_frame); n_left_from = from_frame->n_vectors; if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, n_left_from, sizeof (from[0]), sizeof (snap_input_trace_t)); 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; snap_header_t *h0, *h1; snap_protocol_info_t *pi0, *pi1; u8 next0, next1, is_ethernet0, is_ethernet1, len0, len1, enqueue_code; u32 oui0, oui1; /* 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); CLIB_PREFETCH (b2->data, sizeof (h0[0]), LOAD); CLIB_PREFETCH (b3->data, sizeof (h1[0]), LOAD); } bi0 = from[0]; bi1 = from[1]; to_next[0] = bi0; to_next[1] = bi1; from += 2; to_next += 2; n_left_to_next -= 2; n_left_from -= 2; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); h0 = vlib_buffer_get_current (b0); h1 = vlib_buffer_get_current (b1); oui0 = snap_header_get_oui (h0); oui1 = snap_header_get_oui (h1); is_ethernet0 = oui0 == IEEE_OUI_ethernet; is_ethernet1 = oui1 == IEEE_OUI_ethernet; len0 = sizeof (h0[0]) - (is_ethernet0 ? sizeof (h0->protocol) : 0); len1 = sizeof (h1[0]) - (is_ethernet1 ? sizeof (h1->protocol) : 0); vlib_buffer_advance (b0, len0); vlib_buffer_advance (b1, len1); pi0 = snap_get_protocol_info (sm, h0); pi1 = snap_get_protocol_info (sm, h1); next0 = pi0 ? pi0->next_index : SNAP_INPUT_NEXT_DROP; next1 = pi1 ? pi1->next_index : SNAP_INPUT_NEXT_DROP; next0 = is_ethernet0 ? SNAP_INPUT_NEXT_ETHERNET_TYPE : next0; next1 = is_ethernet1 ? SNAP_INPUT_NEXT_ETHERNET_TYPE : next1; /* In case of error. */ b0->error = node->errors[SNAP_ERROR_UNKNOWN_PROTOCOL]; b1->error = node->errors[SNAP_ERROR_UNKNOWN_PROTOCOL]; enqueue_code = (next0 != next_index) + 2 * (next1 != next_index); if (PREDICT_FALSE (enqueue_code != 0)) { switch (enqueue_code) { case 1: /* A B A */ to_next[-2] = bi1; to_next -= 1; n_left_to_next += 1; vlib_set_next_frame_buffer (vm, node, next0, bi0); break; case 2: /* A A B */ to_next -= 1; n_left_to_next += 1; vlib_set_next_frame_buffer (vm, node, next1, bi1); break; case 3: /* A B B or A B C */ to_next -= 2; n_left_to_next += 2; vlib_set_next_frame_buffer (vm, node, next0, bi0); vlib_set_next_frame_buffer (vm, node, next1, bi1); if (next0 == next1) { vlib_put_next_frame (vm, node, next_index, n_left_to_next); next_index = next1; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); } } } } while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; snap_header_t *h0; snap_protocol_info_t *pi0; u8 next0, is_ethernet0, len0; u32 oui0; 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 = vlib_buffer_get_current (b0); oui0 = snap_header_get_oui (h0); is_ethernet0 = oui0 == IEEE_OUI_ethernet; len0 = sizeof (h0[0]) - (is_ethernet0 ? sizeof (h0->protocol) : 0); vlib_buffer_advance (b0, len0); pi0 = snap_get_protocol_info (sm, h0); next0 = pi0 ? pi0->next_index : SNAP_INPUT_NEXT_DROP; next0 = is_ethernet0 ? SNAP_INPUT_NEXT_ETHERNET_TYPE : next0; /* In case of error. */ b0->error = node->errors[SNAP_ERROR_UNKNOWN_PROTOCOL]; /* Sent packet to wrong next? */ if (PREDICT_FALSE (next0 != next_index)) { /* Return old frame; remove incorrectly enqueued packet. */ vlib_put_next_frame (vm, node, next_index, n_left_to_next + 1); /* Send to correct next. */ next_index = next0; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); to_next[0] = bi0; to_next += 1; n_left_to_next -= 1; } } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return from_frame->n_vectors; } static char *snap_error_strings[] = { #define _(f,s) s, foreach_snap_error #undef _ }; /* *INDENT-OFF* */ VLIB_REGISTER_NODE (snap_input_node) = { .function = snap_input, .name = "snap-input", /* Takes a vector of packets. */ .vector_size = sizeof (u32), .n_errors = SNAP_N_ERROR, .error_strings = snap_error_strings, .n_next_nodes = SNAP_INPUT_N_NEXT, .next_nodes = { [SNAP_INPUT_NEXT_DROP] = "error-drop", [SNAP_INPUT_NEXT_PUNT] = "error-punt", [SNAP_INPUT_NEXT_ETHERNET_TYPE] = "ethernet-input-type", }, .format_buffer = format_snap_header_with_length, .format_trace = format_snap_input_trace, .unformat_buffer = unformat_snap_header, }; /* *INDENT-ON* */ static clib_error_t * snap_input_init (vlib_main_t * vm) { { clib_error_t *error = vlib_call_init_function (vm, snap_init); if (error) clib_error_report (error); } snap_setup_node (vm, snap_input_node.index); llc_register_input_protocol (vm, LLC_PROTOCOL_snap, snap_input_node.index); return 0; } VLIB_INIT_FUNCTION (snap_input_init); void snap_register_input_protocol (vlib_main_t * vm, char *name, u32 ieee_oui, u16 protocol, u32 node_index) { snap_main_t *sm = &snap_main; snap_protocol_info_t *pi; snap_header_t h; snap_oui_and_protocol_t key; { clib_error_t *error = vlib_call_init_function (vm, snap_input_init); if (error) clib_error_report (error); } h.protocol = clib_host_to_net_u16 (protocol); h.oui[0] = (ieee_oui >> 16) & 0xff; h.oui[1] = (ieee_oui >> 8) & 0xff; h.oui[2] = (ieee_oui >> 0) & 0xff; pi = snap_get_protocol_info (sm, &h); if (pi) return; vec_add2 (sm->protocols, pi, 1); pi->name = format (0, "%s", name); pi->node_index = node_index; pi->next_index = vlib_node_add_next (vm, snap_input_node.index, node_index); key.oui = ieee_oui; key.protocol = clib_host_to_net_u16 (protocol); mhash_set (&sm->protocol_hash, &key, pi - sm->protocols, /* old_value */ 0); hash_set_mem (sm->protocol_info_by_name, name, pi - sm->protocols); } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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