/* * 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. */ /* * node_cli.c: node CLI * * 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 <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <vlib/vlib.h> #include <vlib/threads.h> static int node_cmp (void *a1, void *a2) { vlib_node_t **n1 = a1; vlib_node_t **n2 = a2; return vec_cmp (n1[0]->name, n2[0]->name); } static clib_error_t * show_node_graph (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vlib_node_main_t *nm = &vm->node_main; vlib_node_t *n; u32 node_index; vlib_cli_output (vm, "%U\n", format_vlib_node_graph, nm, 0); if (unformat (input, "%U", unformat_vlib_node, vm, &node_index)) { n = vlib_get_node (vm, node_index); vlib_cli_output (vm, "%U\n", format_vlib_node_graph, nm, n); } else { vlib_node_t **nodes = vec_dup (nm->nodes); uword i; vec_sort_with_function (nodes, node_cmp); for (i = 0; i < vec_len (nodes); i++) vlib_cli_output (vm, "%U\n\n", format_vlib_node_graph, nm, nodes[i]); vec_free (nodes); } return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_node_graph_command, static) = { .path = "show vlib graph", .short_help = "Show packet processing node graph", .function = show_node_graph, }; /* *INDENT-ON* */ static clib_error_t * show_node_graphviz (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { clib_error_t *error = 0; vlib_node_main_t *nm = &vm->node_main; u8 *chroot_filename = 0; int fd; vlib_node_t **nodes = 0; uword i, j; if (!unformat_user (input, unformat_vlib_tmpfile, &chroot_filename)) { fd = -1; } else { fd = open ((char *) chroot_filename, O_CREAT | O_TRUNC | O_WRONLY, 0664); } #define format__(vm__, fd__, ...) \ if ((fd) < 0) \ { \ vlib_cli_output((vm__), ## __VA_ARGS__); \ } \ else \ { \ fdformat((fd__), ## __VA_ARGS__); \ } format__ (vm, fd, "%s", "digraph {\n"); nodes = vec_dup (nm->nodes); vec_sort_with_function (nodes, node_cmp); for (i = 0; i < vec_len (nodes); i++) { for (j = 0; j < vec_len (nodes[i]->next_nodes); j++) { vlib_node_t *x; if (nodes[i]->next_nodes[j] == VLIB_INVALID_NODE_INDEX) continue; x = vec_elt (nm->nodes, nodes[i]->next_nodes[j]); format__ (vm, fd, " \"%v\" -> \"%v\"\n", nodes[i]->name, x->name); } } format__ (vm, fd, "%s", "}"); if (fd >= 0) { vlib_cli_output (vm, "vlib graph dumped into `%s'. Run eg. `fdp -Tsvg -O %s'.", chroot_filename, chroot_filename); } vec_free (nodes); vec_free (chroot_filename); vec_free (nodes); if (fd >= 0) close (fd); return error; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_node_graphviz_command, static) = { .path = "show vlib graphviz", .short_help = "Dump packet processing node graph as a graphviz dotfile", .function = show_node_graphviz, }; /* *INDENT-ON* */ static u8 * format_vlib_node_state (u8 * s, va_list * va) { vlib_main_t *vm = va_arg (*va, vlib_main_t *); vlib_node_t *n = va_arg (*va, vlib_node_t *); char *state; state = "active"; if (n->type == VLIB_NODE_TYPE_PROCESS) { vlib_process_t *p = vlib_get_process_from_node (vm, n); switch (p->flags & (VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK | VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT)) { default: if (!(p->flags & VLIB_PROCESS_IS_RUNNING)) state = "done"; break; case VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK: state = "time wait"; break; case VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT: state = "event wait"; break; case (VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT | VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK): state = "any wait"; break; } } else if (n->type != VLIB_NODE_TYPE_INTERNAL) { state = "polling"; if (n->state == VLIB_NODE_STATE_DISABLED) state = "disabled"; else if (n->state == VLIB_NODE_STATE_INTERRUPT) state = "interrupt wait"; } return format (s, "%s", state); } static u8 * format_vlib_node_stats (u8 * s, va_list * va) { vlib_main_t *vm = va_arg (*va, vlib_main_t *); vlib_node_t *n = va_arg (*va, vlib_node_t *); int max = va_arg (*va, int); f64 v; u8 *ns; u8 *misc_info = 0; u64 c, p, l, d; f64 x; f64 maxc, maxcn; u32 maxn; u32 indent; if (!n) { if (max) s = format (s, "%=30s%=17s%=16s%=16s%=16s%=16s", "Name", "Max Node Clocks", "Vectors at Max", "Max Clocks", "Avg Clocks", "Avg Vectors/Call"); else s = format (s, "%=30s%=12s%=16s%=16s%=16s%=16s%=16s", "Name", "State", "Calls", "Vectors", "Suspends", "Clocks", "Vectors/Call"); return s; } indent = format_get_indent (s); l = n->stats_total.clocks - n->stats_last_clear.clocks; c = n->stats_total.calls - n->stats_last_clear.calls; p = n->stats_total.vectors - n->stats_last_clear.vectors; d = n->stats_total.suspends - n->stats_last_clear.suspends; maxc = (f64) n->stats_total.max_clock; maxn = n->stats_total.max_clock_n; if (n->stats_total.max_clock_n) maxcn = (f64) n->stats_total.max_clock / (f64) maxn; else maxcn = 0.0; /* Clocks per packet, per call or per suspend. */ x = 0; if (p > 0) x = (f64) l / (f64) p; else if (c > 0) x = (f64) l / (f64) c; else if (d > 0) x = (f64) l / (f64) d; if (c > 0) v = (double) p / (double) c; else v = 0; if (n->type == VLIB_NODE_TYPE_PROCESS) { vlib_process_t *p = vlib_get_process_from_node (vm, n); /* Show processes with events pending. This helps spot bugs where events are not being handled. */ if (!clib_bitmap_is_zero (p->non_empty_event_type_bitmap)) misc_info = format (misc_info, "events pending, "); } ns = n->name; if (max) s = format (s, "%-30v%=17.2e%=16d%=16.2e%=16.2e%=16.2e", ns, maxc, maxn, maxcn, x, v); else s = format (s, "%-30v%=12U%16Ld%16Ld%16Ld%16.2e%16.2f", ns, format_vlib_node_state, vm, n, c, p, d, x, v); if (ns != n->name) vec_free (ns); if (misc_info) { s = format (s, "\n%U%v", format_white_space, indent + 4, misc_info); vec_free (misc_info); } return s; } static clib_error_t * show_node_runtime (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vlib_node_main_t *nm = &vm->node_main; vlib_node_t *n; f64 time_now; u32 node_index; vlib_node_t ***node_dups = 0; f64 *vectors_per_main_loop = 0; f64 *last_vector_length_per_node = 0; time_now = vlib_time_now (vm); if (unformat (input, "%U", unformat_vlib_node, vm, &node_index)) { n = vlib_get_node (vm, node_index); vlib_node_sync_stats (vm, n); vlib_cli_output (vm, "%U\n", format_vlib_node_stats, vm, 0, 0); vlib_cli_output (vm, "%U\n", format_vlib_node_stats, vm, n, 0); } else { vlib_node_t **nodes; uword i, j; f64 dt; u64 n_input, n_output, n_drop, n_punt; u64 n_internal_vectors, n_internal_calls; u64 n_clocks, l, v, c, d; int brief = 1; int max = 0; vlib_main_t **stat_vms = 0, *stat_vm; /* Suppress nodes with zero calls since last clear */ if (unformat (input, "brief") || unformat (input, "b")) brief = 1; if (unformat (input, "verbose") || unformat (input, "v")) brief = 0; if (unformat (input, "max") || unformat (input, "m")) max = 1; for (i = 0; i < vec_len (vlib_mains); i++) { stat_vm = vlib_mains[i]; if (stat_vm) vec_add1 (stat_vms, stat_vm); } /* * Barrier sync across stats scraping. * Otherwise, the counts will be grossly inaccurate. */ vlib_worker_thread_barrier_sync (vm); for (j = 0; j < vec_len (stat_vms); j++) { stat_vm = stat_vms[j]; nm = &stat_vm->node_main; for (i = 0; i < vec_len (nm->nodes); i++) { n = nm->nodes[i]; vlib_node_sync_stats (stat_vm, n); } nodes = vec_dup (nm->nodes); vec_add1 (node_dups, nodes); vec_add1 (vectors_per_main_loop, vlib_last_vectors_per_main_loop_as_f64 (stat_vm)); vec_add1 (last_vector_length_per_node, vlib_last_vector_length_per_node (stat_vm)); } vlib_worker_thread_barrier_release (vm); for (j = 0; j < vec_len (stat_vms); j++) { stat_vm = stat_vms[j]; nodes = node_dups[j]; vec_sort_with_function (nodes, node_cmp); n_input = n_output = n_drop = n_punt = n_clocks = 0; n_internal_vectors = n_internal_calls = 0; for (i = 0; i < vec_len (nodes); i++) { n = nodes[i]; l = n->stats_total.clocks - n->stats_last_clear.clocks; n_clocks += l; v = n->stats_total.vectors - n->stats_last_clear.vectors; c = n->stats_total.calls - n->stats_last_clear.calls; switch (n->type) { default: continue; case VLIB_NODE_TYPE_INTERNAL: n_output += (n->flags & VLIB_NODE_FLAG_IS_OUTPUT) ? v : 0; n_drop += (n->flags & VLIB_NODE_FLAG_IS_DROP) ? v : 0; n_punt += (n->flags & VLIB_NODE_FLAG_IS_PUNT) ? v : 0; if (!(n->flags & VLIB_NODE_FLAG_IS_OUTPUT)) { n_internal_vectors += v; n_internal_calls += c; } if (n->flags & VLIB_NODE_FLAG_IS_HANDOFF) n_input += v; break; case VLIB_NODE_TYPE_INPUT: n_input += v; break; } } if (vec_len (vlib_mains) > 1) { vlib_worker_thread_t *w = vlib_worker_threads + j; if (j > 0) vlib_cli_output (vm, "---------------"); if (w->cpu_id > -1) vlib_cli_output (vm, "Thread %d %s (lcore %u)", j, w->name, w->cpu_id); else vlib_cli_output (vm, "Thread %d %s", j, w->name); } dt = time_now - nm->time_last_runtime_stats_clear; vlib_cli_output (vm, "Time %.1f, average vectors/node %.2f, last %d main loops %.2f per node %.2f" "\n vector rates in %.4e, out %.4e, drop %.4e, punt %.4e", dt, (n_internal_calls > 0 ? (f64) n_internal_vectors / (f64) n_internal_calls : 0), 1 << VLIB_LOG2_MAIN_LOOPS_PER_STATS_UPDATE, vectors_per_main_loop[j], last_vector_length_per_node[j], (f64) n_input / dt, (f64) n_output / dt, (f64) n_drop / dt, (f64) n_punt / dt); vlib_cli_output (vm, "%U", format_vlib_node_stats, stat_vm, 0, max); for (i = 0; i < vec_len (nodes); i++) { c = nodes[i]->stats_total.calls - nodes[i]->stats_last_clear.calls; d = nodes[i]->stats_total.suspends - nodes[i]->stats_last_clear.suspends; if (c || d || !brief) { vlib_cli_output (vm, "%U", format_vlib_node_stats, stat_vm, nodes[i], max); } } vec_free (nodes); } vec_free (stat_vms); vec_free (node_dups); vec_free (vectors_per_main_loop); vec_free (last_vector_length_per_node); } return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_node_runtime_command, static) = { .path = "show runtime", .short_help = "Show packet processing runtime", .function = show_node_runtime, .is_mp_safe = 1, }; /* *INDENT-ON* */ static clib_error_t * clear_node_runtime (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vlib_node_main_t *nm; vlib_node_t *n; int i, j; vlib_main_t **stat_vms = 0, *stat_vm; vlib_node_runtime_t *r; for (i = 0; i < vec_len (vlib_mains); i++) { stat_vm = vlib_mains[i]; if (stat_vm) vec_add1 (stat_vms, stat_vm); } vlib_worker_thread_barrier_sync (vm); for (j = 0; j < vec_len (stat_vms); j++) { stat_vm = stat_vms[j]; nm = &stat_vm->node_main; for (i = 0; i < vec_len (nm->nodes); i++) { n = nm->nodes[i]; vlib_node_sync_stats (stat_vm, n); n->stats_last_clear = n->stats_total; r = vlib_node_get_runtime (stat_vm, n->index); r->max_clock = 0; } /* Note: input/output rates computed using vlib_global_main */ nm->time_last_runtime_stats_clear = vlib_time_now (vm); } vlib_worker_thread_barrier_release (vm); vec_free (stat_vms); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (clear_node_runtime_command, static) = { .path = "clear runtime", .short_help = "Clear packet processing runtime statistics", .function = clear_node_runtime, }; /* *INDENT-ON* */ static clib_error_t * show_node (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; clib_error_t *error = 0; vlib_node_main_t *nm = &vm->node_main; vlib_node_t *n; u8 *s = 0, *s2 = 0; u32 i, node_index = ~0; char *type_str; u8 valid_node_name = 0; 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, "index %u", &node_index)) ; else if (unformat (line_input, "%U", unformat_vlib_node, vm, &node_index)) valid_node_name = 1; else if (!valid_node_name) error = clib_error_return (0, "unknown node name: '%U'", format_unformat_error, line_input); else error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); } unformat_free (line_input); if (error) return error; if (node_index >= vec_len (vm->node_main.nodes)) return clib_error_return (0, "please specify valid node"); n = vlib_get_node (vm, node_index); vlib_node_sync_stats (vm, n); switch (n->type) { case VLIB_NODE_TYPE_INTERNAL: type_str = "internal"; break; case VLIB_NODE_TYPE_INPUT: type_str = "input"; break; case VLIB_NODE_TYPE_PRE_INPUT: type_str = "pre-input"; break; case VLIB_NODE_TYPE_PROCESS: type_str = "process"; break; default: type_str = "unknown"; } if (n->sibling_of) s = format (s, ", sibling-of %s", n->sibling_of); vlib_cli_output (vm, "node %s, type %s, state %U, index %d%v\n", n->name, type_str, format_vlib_node_state, vm, n, n->index, s); vec_reset_length (s); if (n->node_fn_registrations) { vlib_node_fn_registration_t *fnr = n->node_fn_registrations; while (fnr) { if (vec_len (s) == 0) s = format (s, "\n %-15s %=8s %6s", "Name", "Priority", "Active"); s = format (s, "\n %-15s %=8u %=6s", fnr->name, fnr->priority, fnr->function == n->function ? "yes" : ""); fnr = fnr->next_registration; } } else s = format (s, "\n default only"); vlib_cli_output (vm, " node function variants:%v\n", s); vec_reset_length (s); for (i = 0; i < vec_len (n->next_nodes); i++) { vlib_node_t *pn; if (n->next_nodes[i] == VLIB_INVALID_NODE_INDEX) continue; pn = vec_elt (nm->nodes, n->next_nodes[i]); if (vec_len (s) == 0) s = format (s, "\n %10s %10s %=30s %8s", "next-index", "node-index", "Node", "Vectors"); s = format (s, "\n %=10u %=10u %-30v %=8llu", i, n->next_nodes[i], pn->name, vec_elt (n->n_vectors_by_next_node, i)); } if (vec_len (s) == 0) s = format (s, "\n none"); vlib_cli_output (vm, "\n next nodes:%v\n", s); vec_reset_length (s); if (n->type == VLIB_NODE_TYPE_INTERNAL) { int j = 0; /* *INDENT-OFF* */ clib_bitmap_foreach (i, n->prev_node_bitmap, ({ vlib_node_t *pn = vlib_get_node (vm, i); if (j++ % 3 == 0) s = format (s, "\n "); s2 = format (s2, "%v (%u)", pn->name, i); s = format (s, "%-35v", s2); vec_reset_length (s2); })); /* *INDENT-ON* */ if (vec_len (s) == 0) s = format (s, "\n none"); vlib_cli_output (vm, "\n known previous nodes:%v\n", s); vec_reset_length (s); } vec_free (s); vec_free (s2); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_node_command, static) = { .path = "show node", .short_help = "show node [index] <node-name | node-index>", .function = show_node, }; static clib_error_t * set_node_fn(vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; u32 node_index; vlib_node_t *n; clib_error_t *err = 0; vlib_node_fn_registration_t *fnr; u8 *variant = 0; if (!unformat_user (input, unformat_line_input, line_input)) return 0; if (!unformat (line_input, "%U", unformat_vlib_node, vm, &node_index)) { err = clib_error_return (0, "please specify valid node name"); goto done; } if (!unformat (line_input, "%s", &variant)) { err = clib_error_return (0, "please specify node functional variant"); goto done; } n = vlib_get_node (vm, node_index); if (n->node_fn_registrations == 0) { err = clib_error_return (0, "node doesn't have functional variants"); goto done; } fnr = n->node_fn_registrations; vec_add1 (variant, 0); while (fnr) { if (!strncmp (fnr->name, (char *) variant, vec_len (variant) - 1)) { int i; n->function = fnr->function; for (i = 0; i < vec_len (vlib_mains); i++) { vlib_node_runtime_t *nrt; nrt = vlib_node_get_runtime (vlib_mains[i], n->index); nrt->function = fnr->function; } goto done; } fnr = fnr->next_registration; } err = clib_error_return (0, "node functional variant '%s' not found", variant); done: vec_free (variant); unformat_free (line_input); return err; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_node_fn_command, static) = { .path = "set node function", .short_help = "set node function <node-name> <variant-name>", .function = set_node_fn, }; /* *INDENT-ON* */ /* Dummy function to get us linked in. */ void vlib_node_cli_reference (void) { } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */