From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 19 Dec 2016 23:05:39 +0100 Subject: Reorganize source tree to use single autotools instance Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion --- src/vlib/error.c | 338 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 338 insertions(+) create mode 100644 src/vlib/error.c (limited to 'src/vlib/error.c') diff --git a/src/vlib/error.c b/src/vlib/error.c new file mode 100644 index 00000000000..a2c2317686b --- /dev/null +++ b/src/vlib/error.c @@ -0,0 +1,338 @@ +/* + * 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. + */ +/* + * error.c: VLIB error handler + * + * Copyright (c) 2008 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 +#include + +uword +vlib_error_drop_buffers (vlib_main_t * vm, + vlib_node_runtime_t * node, + u32 * buffers, + u32 next_buffer_stride, + u32 n_buffers, + u32 next_index, + u32 drop_error_node, u32 drop_error_code) +{ + u32 n_left_this_frame, n_buffers_left, *args, n_args_left; + vlib_error_t drop_error; + + drop_error = vlib_error_set (drop_error_node, drop_error_code); + + n_buffers_left = n_buffers; + while (n_buffers_left > 0) + { + vlib_get_next_frame (vm, node, next_index, args, n_args_left); + + n_left_this_frame = clib_min (n_buffers_left, n_args_left); + n_buffers_left -= n_left_this_frame; + n_args_left -= n_left_this_frame; + + while (n_left_this_frame >= 4) + { + u32 bi0, bi1, bi2, bi3; + vlib_buffer_t *b0, *b1, *b2, *b3; + + args[0] = bi0 = buffers[0]; + args[1] = bi1 = buffers[1]; + args[2] = bi2 = buffers[2]; + args[3] = bi3 = buffers[3]; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + b2 = vlib_get_buffer (vm, bi2); + b3 = vlib_get_buffer (vm, bi3); + + b0->error = drop_error; + b1->error = drop_error; + b2->error = drop_error; + b3->error = drop_error; + + buffers += 4; + args += 4; + n_left_this_frame -= 4; + } + + while (n_left_this_frame >= 1) + { + u32 bi0; + vlib_buffer_t *b0; + + args[0] = bi0 = buffers[0]; + + b0 = vlib_get_buffer (vm, bi0); + b0->error = drop_error; + + buffers += 1; + args += 1; + n_left_this_frame -= 1; + } + + vlib_put_next_frame (vm, node, next_index, n_args_left); + } + + return n_buffers; +} + +/* Convenience node to drop a vector of buffers with a "misc error". */ +static uword +misc_drop_buffers (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return vlib_error_drop_buffers (vm, node, vlib_frame_args (frame), + /* buffer stride */ 1, + frame->n_vectors, + /* next */ 0, + node->node_index, + /* error */ 0); +} + +static char *misc_drop_buffers_error_strings[] = { + [0] = "misc. errors", +}; + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (misc_drop_buffers_node,static) = { + .function = misc_drop_buffers, + .name = "misc-drop-buffers", + .vector_size = sizeof (u32), + .n_errors = 1, + .n_next_nodes = 1, + .next_nodes = { + "error-drop", + }, + .error_strings = misc_drop_buffers_error_strings, +}; +/* *INDENT-ON* */ + +/* Reserves given number of error codes for given node. */ +void +vlib_register_errors (vlib_main_t * vm, + u32 node_index, u32 n_errors, char *error_strings[]) +{ + vlib_error_main_t *em = &vm->error_main; + vlib_node_t *n = vlib_get_node (vm, node_index); + uword l; + + ASSERT (os_get_cpu_number () == 0); + + /* Free up any previous error strings. */ + if (n->n_errors > 0) + heap_dealloc (em->error_strings_heap, n->error_heap_handle); + + n->n_errors = n_errors; + n->error_strings = error_strings; + + if (n_errors == 0) + return; + + n->error_heap_index = + heap_alloc (em->error_strings_heap, n_errors, n->error_heap_handle); + + l = vec_len (em->error_strings_heap); + + clib_memcpy (vec_elt_at_index (em->error_strings_heap, n->error_heap_index), + error_strings, n_errors * sizeof (error_strings[0])); + + /* Allocate a counter/elog type for each error. */ + vec_validate (em->counters, l - 1); + vec_validate (vm->error_elog_event_types, l - 1); + + /* Zero counters for re-registrations of errors. */ + if (n->error_heap_index + n_errors <= vec_len (em->counters_last_clear)) + clib_memcpy (em->counters + n->error_heap_index, + em->counters_last_clear + n->error_heap_index, + n_errors * sizeof (em->counters[0])); + else + memset (em->counters + n->error_heap_index, + 0, n_errors * sizeof (em->counters[0])); + + { + elog_event_type_t t; + uword i; + + memset (&t, 0, sizeof (t)); + for (i = 0; i < n_errors; i++) + { + t.format = (char *) format (0, "%v %s: %%d", + n->name, error_strings[i]); + vm->error_elog_event_types[n->error_heap_index + i] = t; + } + } +} + +static clib_error_t * +show_errors (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vlib_error_main_t *em = &vm->error_main; + vlib_node_t *n; + u32 code, i, ni; + u64 c; + int index = 0; + int verbose = 0; + u64 *sums = 0; + + if (unformat (input, "verbose %d", &verbose)) + ; + else if (unformat (input, "verbose")) + verbose = 1; + + vec_validate (sums, vec_len (em->counters)); + + if (verbose) + vlib_cli_output (vm, "%=10s%=40s%=20s%=6s", "Count", "Node", "Reason", + "Index"); + else + vlib_cli_output (vm, "%=10s%=40s%=6s", "Count", "Node", "Reason"); + + + /* *INDENT-OFF* */ + foreach_vlib_main(({ + em = &this_vlib_main->error_main; + + if (verbose) + vlib_cli_output(vm, "Thread %u (%v):", index, + vlib_worker_threads[index].name); + + for (ni = 0; ni < vec_len (this_vlib_main->node_main.nodes); ni++) + { + n = vlib_get_node (this_vlib_main, ni); + for (code = 0; code < n->n_errors; code++) + { + i = n->error_heap_index + code; + c = em->counters[i]; + if (i < vec_len (em->counters_last_clear)) + c -= em->counters_last_clear[i]; + sums[i] += c; + + if (c == 0 && verbose < 2) + continue; + + if (verbose) + vlib_cli_output (vm, "%10Ld%=40v%=20s%=6d", c, n->name, + em->error_strings_heap[i], i); + else + vlib_cli_output (vm, "%10d%=40v%s", c, n->name, + em->error_strings_heap[i]); + } + } + index++; + })); + /* *INDENT-ON* */ + + if (verbose) + vlib_cli_output (vm, "Total:"); + + for (ni = 0; ni < vec_len (vm->node_main.nodes); ni++) + { + n = vlib_get_node (vm, ni); + for (code = 0; code < n->n_errors; code++) + { + i = n->error_heap_index + code; + if (sums[i]) + { + if (verbose) + vlib_cli_output (vm, "%10Ld%=40v%=20s%=10d", sums[i], n->name, + em->error_strings_heap[i], i); + } + } + } + + vec_free (sums); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (cli_show_errors, static) = { + .path = "show errors", + .short_help = "Show error counts", + .function = show_errors, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (cli_show_node_counters, static) = { + .path = "show node counters", + .short_help = "Show node counters", + .function = show_errors, +}; +/* *INDENT-ON* */ + +static clib_error_t * +clear_error_counters (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vlib_error_main_t *em; + u32 i; + + /* *INDENT-OFF* */ + foreach_vlib_main(({ + em = &this_vlib_main->error_main; + vec_validate (em->counters_last_clear, vec_len (em->counters) - 1); + for (i = 0; i < vec_len (em->counters); i++) + em->counters_last_clear[i] = em->counters[i]; + })); + /* *INDENT-ON* */ + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (cli_clear_error_counters, static) = { + .path = "clear errors", + .short_help = "Clear error counters", + .function = clear_error_counters, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (cli_clear_node_counters, static) = { + .path = "clear node counters", + .short_help = "Clear node counters", + .function = clear_error_counters, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg